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  • Applicable environment for fluorine lined valves
    Fluorine plastic-lined anti-corrosion valves have been widely used in devices exposed to strong corrosive media such as acids and alkalis in petroleum, chemicals, pharmaceuticals, metallurgy, electric power, and other industries. However, how to select and use fluoroplastic-lined valves well, according to our vast Users have many years of experience in field applications. When selecting fluoroplastic-lined anti-corrosion valves, the following matters should be paid attention to when selecting medium temperature, pressure, pressure difference, and other operating conditions: Medium temperature For valves lined with fluorine plastic, the fluoroplastic used is F46 (FEP), and the medium temperature used cannot exceed 150°C (the medium temperature can reach 150°C in a short time, and the long-term use temperature should be controlled within 120°C). Otherwise, the valve's F46 lining of each component is easy to soften and deform, causing the valve to not close and causing large leakage. If the temperature of the medium used is below 180°C in the short term and below 150°C in the long term, you can choose another fluoroplastic - PFA, but the one lined with PFA fluoroplastic is more expensive than the one lined with F46. No negative pressure Fluorine-plastic lined valves should avoid using pipelines with negative pressure. If there is negative pressure, it will easily cause the fluorine-plastic lined layer in the inner cavity of the valve to be sucked out (bulged out) and shelled out, causing valve opening and closing failures. Pressure, differential pressure control range Pressure and pressure difference should be controlled within the allowable range. Especially the bellows-sealed fluoroplastic-lined regulating valves and stop valves. Because the bellows are made of PTFE material, the pressure and pressure difference are large, which can easily cause the bellows to rupture and cause the rubber-lined valve to break. The bellows-sealed fluorine-plastic-lined regulating valve can be changed to a PTFE packing seal if the operating pressure and pressure difference are large. Suitable Medium The medium conditions used in fluoroplastic-lined valves should not contain hard particles, crystals, impurities, etc., to prevent the valve from wearing out the fluorine-plastic lining layer or PTFE bellows of the valve core and valve seat during the opening and closing. If the medium contains hard particles, crystals, and impurities, the valve core and valve seat can be replaced with Hastelloy rubber-lined valves. Valve Diameter The diameter of the fluorine-plastic lined regulating valve should be correctly selected according to the required flow rate (Cv value). When selecting, the diameter of the valve and the opening degree of the valve should be calculated based on the required flow rate (Cv value) and other technical parameters. If the diameter of the valve is selected too large, it will inevitably cause the valve to have a small opening degree for a long time. When operating under normal conditions, coupled with the pressure of the medium, it is easy for the valve core and rod to be impacted by the medium, causing the valve to vibrate. The valve core rod is under the impact of the medium for a long time, and may even cause the valve stem to break in rubber-lined valves. Therefore, when selecting various types of fluoroplastic-lined valves, you should understand and master the technical conditions of use as much as possible so that you can select and use them well and extend the service life of the valve. When the technical conditions for use are exceeded, the manufacturer should be notified, negotiating together, and corresponding countermeasures should be taken to solve the problem using valves.

    2023 12/14

  • Six factors to note when selecting a control valve based on functions.
    Regulating valve, also known as control valve, is the final control element in the field of industrial automation process control that changes process parameters such as medium flow, pressure, temperature, and liquid level with the help of power operation by receiving the control signal output from the regulating control unit. There are six factors to note when selecting a suitable control valve based on functions. Regulating Function 1. The valve is required to operate smoothly 2. Good adjustment performance with a small opening 3. Select the required flow characteristics 4. Satisfy the adjustable ratio 5. Small resistance and large flow ratio (ratio of the valve`s rated flow parameter and nominal diameter) 6. Adjust the speed Leakage and cut-off pressure differential These are two factors that are inseparable and interrelated. The leakage amount should meet the process requirements, and there are measures to protect the reliability of the sealing surface; the cut-off pressure difference (pressure difference when the valve is closed) must be stated (unfortunately, this parameter is not included in the calculation specifications of regulating valves in many design institutes), so that the selected valve has enough output force to overcome it, otherwise it will cause the actuator to be larger or smaller. Anti-clogging Even if the medium is clean, there is still a problem of clogging. This is because unclean things in the pipeline are brought into the regulating valve by the medium, causing blockage. This is a common fault, so the anti-blocking performance of the valve should be considered. Generally, angle control valves have much better anti-blocking performance than straight-through control valves, so the use of quarter-turn control valves will become more and more common in the future. Corrosion resistance It includes resistance to erosion, cavitation, and corrosion. It mainly involves the selection of materials and the service life of the valve. At the same time, it also involves economic issues. The essence of this problem should be that the selected valve has good corrosion resistance and is reasonably priced. If you can choose a full PTFE valve, you should not choose a fully corrosion-resistant alloy valve; if you can choose an angle-shaped high-pressure valve with better anti-cavitation effect and simple structure (satisfying a service life of about two years), you should not choose a complicated structure and expensive price. other high-pressure valves. Pressure and temperature resistance This involves the selection of the nominal pressure and operating temperature of the regulating valve. In terms of pressure resistance, it is not difficult if the pressure is high, but the pressure difference will cause cavitation. In terms of temperature resistance, it is usually very easy to solve the problem below 450°C, and it is not difficult to solve the problem of 450 to 600°C, but when it reaches 600°C or above, The contradiction will become prominent; when the temperature is 80°C, it is usually not advisable to use soft sealing materials for cut-off control valves, and hard-sealing cutoff should be considered. Weight and appearance This question is very intuitive. Valves with good appearance and lightweight must be popular among manufacturers. Here we need to change the prejudice that the regulating valve is an "Uneducated person". It is no big deal if it is heavier or looks worse. Now we attach great importance to it, thus proposing that the regulating valve should have the characteristics of miniaturization, lightness, and instrumentation.

    2023 11/20

  • Functions and types of flange globe valves
    Functions The flange stop valve is a forced sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve diameter of the stem must be large, otherwise, the valve stem will bend. Flanged globe valves are easy to operate and the threaded seat ring provides easy access for repair or replacement. Packing swing bolts on most valves simplifies packing replacement. All-bolt bonnet construction makes disassembly faster. Types 1. According to the position of the valve stem thread External thread type Internal thread type 2. According to the flow direction of the medium Straight-through DC type Angular 3. According to sealing method Packing seal Bellows seal

    2023 11/06

  • Precautions for daily use of submersible sewage pump
    The biggest advantage of the submersible sewage pump is the introduction of foreign advanced technology. On this basis, a new sewage pump is developed based on the characteristics of Chinese water pumps. This kind of sewage pump has a good energy-saving effect and will not appear during use. Tangle, blockage, and usage conditions, but please pay attention to the following usage matters when using it. Pay attention to the use of springs The spring of the submersible sewage pump plays an important role. The compression amount must be carried out according to regulations. During use, it is required that it is not allowed to be too large or too small, but an error of up to 2mm is allowed. For this aspect, we are the only one It should be known that if the compression amount is too large and the friction heat is too much, it will cause thermal deformation of the sealing surface of the submersible sewage pump, and accelerated end face wear will occur. Once the compression amount is too small during use, insufficient specific pressure will occur on the end faces of the dynamic and static rings, so that it cannot be sealed. Avoid fluid leakage The function of the submersible sewage pump is to transport fluid. For the end face seal of the submersible sewage pump, we will see a pair of end faces perpendicular to the axis of rotation. This end face is under the action of fluid pressure and mechanical external elastic force when used so that Relying on the cooperation of the auxiliary seal, the other end will remain close to each other and slide relatively. Only such use will prevent fluid leakage. Installation of the sealing ring Whether the sealing ring is installed correctly or not directly affects the performance of the submersible sewage pump. When installing the shaft end face of the dynamic ring sealing ring of the submersible sewage pump, or the end face of the sealing gland of the static ring sealing ring, you must The advantage of chamfering and polishing is to avoid damaging the dynamic and static ring seals during assembly. Precautions when using mechanical seals When using mechanical seals, we must first analyze some common problems when using mechanical seals for submersible drainage pump. Only in this way can we ensure that the mechanical seals of submersible sewage pumps are better suited to the technical requirements of various submersible sewage pumps. Only in this way can the long-term reliable operation of the seal be guaranteed. No matter what kind of mechanical equipment it is used on, the mechanical seal itself is a precision component with high requirements. The same is true for the submersible sewage pump. It has high requirements for design, machining, and assembly quality. There are high demands. So you should pay more attention to this when using it.

    2023 10/16

  • The Importance of Single Facer Grease
    Corrugating Roll not only directly determines the quality of corrugated cardboard, but is also one of the most frequently replaced and expensive components of the corrugated cardboard production line. It is called the "heart" of the corrugated cardboard production line. When the corrugating roller is working normally, the operating temperature of key parts is above 180°C, and the instantaneous temperature can reach above 230°C. Exposed to environments with high temperatures, heavy loads, and water vapor for long periods of time. Therefore, it is necessary to use Single Facer grease to lubricate and protect the equipment from corrosion. Many grease manufacturers on the market use high dropping points as a promotional tool, claiming that the temperature resistance is as high as 300°C or higher, but various problems often occur during actual use. Because the grease at the corrugated roller has been in a high-temperature state for a long time and is subject to shearing, it often has a tendency to decrease in consistency and easily coke. Therefore, the use of grease cannot only focus on temperature as an indicator but requires comprehensive consideration for long-term use. Common lubrication failure points in corrugated product production lines 1. Grease precipitation-oil flow The specific performance is: that the consistency of the grease becomes thinner and flows out from the bearing. Reason: The grease cannot withstand high-temperature conditions and shearing environments for a long time. The soap base structure in the grease is destroyed, and the oil soap separates, so it softens and is lost. 2. Grease carbon deposit-coking Specific manifestations include severe bearing wear or direct locking, similar to dry friction. After opening the bearing, it was found that the grease no longer existed in a semi-fluid state, but was replaced by black carbon deposits. Reason: The oily substances that play a lubricating role in grease undergo chemical changes such as oxidation at high temperatures. Long-chain molecules are broken into short-chain molecules and eventually become carbides. 3. Insufficient lubrication capacity and stuck The specific manifestation is: that during regular maintenance, there is semi-fluid grease on the bearing, but the bearing is severely worn. Reason: The grease has insufficient lubrication capacity and cannot form boundary lubrication or extreme pressure lubrication during friction. This means that the grease has no lubrication effect or has a limited effect, the bearings are still in direct contact and friction occurs. In view of the fact that the corrugating roller has been in a working environment of high temperature, high load, and presence of water vapor for a long time, in order to ensure its long-term operation and reduce downtime, the grease used should meet the following requirements: 1. High-temperature resistance: It can work under at least 200℃ for a long time without loss. 2. Anti-oxidation: Good oxidation stability. When the lubricant comes into contact with air in a high-temperature environment, it will not be oxidized quickly to form oxides and avoid the formation of carbides. 3. Water vapor resistance: Grease will not emulsify or hydrolyze when exposed to water. 4. Shear resistance: When the grease is subjected to shear for a long time during mechanical operation, the soap fibers will separate and flow, and the grease structure will be unstable, resulting in a decrease in consistency. The perfluoropolyether high-temperature grease series developed by HUATAO has good performance at high temperatures and has a long service life. It meets the usage environment of corrugating machine equipment and has mature application experience. Welcome to call us for consultation and free sampling.

    2023 10/08

  • Professional Valve Maintenance Services Help Ensure Stable Operation of Industrial Production
    In industrial production, Valves are widely used in pipeline systems to control the flow and pressure of fluids. However, due to long-term use and environmental factors, valves may malfunction and leak, adversely affecting the normal operation of the production line. Therefore, valve maintenance has become one of the important daily tasks in factories. The maintenance plan includes the following main steps: 1. Regular inspection and maintenance: Regularly inspect each component of the Industrial Valve to ensure its normal operation, deal with problems in a timely manner, and perform regular lubrication and cleaning to extend the service life of the valve. 2. Leak detection and repair: Through advanced leak detection technology, the valve is comprehensively inspected to ensure that the valve does not leak during operation, and potential problems are discovered and repaired in a timely manner during the inspection process. 3. Valve sealing testing: Use professional sealing testing equipment to test the sealing performance of the Gate Valve, and make timely adjustments and replacements when problems are found to ensure the stability and reliability of the valve sealing effect. 4. Performance optimization and upgrade: According to the actual needs of industrial production, the performance of the valve is optimized and upgraded to improve the efficiency and reliability of the equipment and reduce energy consumption and maintenance costs. Valve maintenance is a critical step in ensuring the normal operation of industrial equipment. According to these maintenance measures, equipment can be better protected from damage, production line downtime can be reduced, and efficiency can be improved. The above information comes from Huatao Company, if forwarding, please indicate the source. If want to know more, kindly contact HUATAO GROUP, Whatsapp number: +86 18103317488 , email address: team91@huataogroup.com

    2023 09/15

  • What are the functions and advantages and disadvantages of cryogenic gate valves?
    Function The opening and closing part of the cryogenic gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The Electric Gate Valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50, and 2°52' when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a small amount of deformation to improve its manufacturability and compensate for the deviation of the sealing surface angle during processing. The plate is called the elastic gate. Advantages 1. The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium. 2. It saves effort to open and close. 3. The flow direction of the medium is not restricted, without disturbing the flow and reducing the pressure. 4. The shape is simple, the structure length is short, the manufacturing process is good, and the application range is wide. 5. The disadvantages of cryogenic gate valves are as follows: 6. It is easy to cause erosion and abrasion between the sealing surfaces, and it is difficult to maintain. 7. The external dimension is large, it needs a certain space to open, and the opening and closing time is long. 8. The structure is more complex. 9. The type of gate width can be divided into wedge gate valve and parallel gate valve according to the sealing surface configuration. Wedge gate valves can be divided into single gate type, double gate type, and elastic gate type; parallel gate valves. It can be divided into single ram type and double ram type. According to the thread position of the valve stem, it can be divided into two types: rising stem gate valve and dark stem gate valve. The installation and maintenance of cryogenic gate valves should pay attention to the following items: Handwheels, handles, and transmission mechanisms are not allowed to be used for lifting, and collisions are strictly prohibited. The double disc gate valve should be installed vertically (that is, the valve stem is in the vertical position and the hand wheel is on the top). The gate valve with a bypass valve should be opened before opening the bypass valve (to balance the pressure difference between the inlet and outlet and reduce the opening force). The gate valve with a transmission mechanism shall be installed according to the provisions of the product instruction manual. If the valve is used on and off frequently, lubricate it at least once a month. Structural Features For a long time, the general Pneumatic Gate Valve used in the market generally had water leakage or rust. The elastic seat seal Gate Valve produced by the company by introducing European high-tech rubber and valve manufacturing technology overcomes the defects of poor sealing and rust in general gate valves. The elastic seat The sealing gate valve achieves a good sealing effect by using the compensation effect of the elastic gate to produce a small amount of elastic deformation. The valve has the advantages of light switch, reliable sealing, good elastic memory and long service life. It can be widely used in water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, energy systems and other body pipelines as a regulating and intercepting device. Disadvantages 1. It is easy to cause erosion and abrasion between the sealing surfaces, and it is difficult to maintain. 2. Due to its large size, it requires a certain amount of space to open, and it takes a long time to open and close. 3. The structure is more complex.

    2023 09/04

  • New Company Websites On line!
    Our New company websites was on line : www.huataogroup.com Unveiling Our New Company Website: A Window to Innovation and Excellence In an era characterized by rapid technological advancements and digital transformation, a company's online presence is a pivotal element of its identity and engagement with the world. We are thrilled to announce the completion of our brand-new company website, a platform designed to redefine how we connect, engage, and share our passion for innovation and excellence with our valued audience. Embracing Change for a Brighter Future The launch of our new company website marks a significant milestone in our journey towards embracing change and staying at the forefront of technological progress. With a refreshed design, enhanced features, and user-friendly navigation, our website embodies the values that drive us to constantly evolve and provide the best possible experience to our visitors. Aesthetic Elegance Meets User-Centric Design From the moment you land on our homepage, you'll notice the seamless blend of aesthetic elegance and user-centric design. We have crafted every element with meticulous attention to detail, ensuring that your browsing experience is both visually engaging and intuitive. Our sleek and modern design reflects our commitment to innovation and sets the tone for what's to come. Discover, Engage, Connect Our new website is a comprehensive hub where you can discover the depth and breadth of our offerings. Navigate through our product pages to explore our diverse range of solutions, each tailored to address your unique needs. Engage with rich content, informative videos, and insightful articles that delve into the heart of what we do and how we do it differently. User-Friendly Navigation We understand the value of your time and strive to make your journey through our website effortless. Our streamlined navigation ensures that you can quickly access the information you're looking for, whether it's details about our products, our company story, or the latest updates from our industry. Responsive Design for a Seamless Experience In an age where accessing the internet spans across various devices, we've ensured that our website is fully responsive. Whether you're browsing on a desktop, tablet, or smartphone, our website seamlessly adapts to your screen size, guaranteeing a consistent and immersive experience. Engage and Interact Your engagement matters to us. That's why we've incorporated interactive elements that invite you to connect with us on a deeper level. Through our contact forms, social media integration, and dedicated channels, you can easily reach out, share your thoughts, and join in on the conversations that matter most to you. A Glimpse into the Future As we embark on this exciting new chapter with our revamped website, we invite you to explore, engage, and be part of our journey. This platform is a testament to our commitment to progress, innovation, and staying connected with our ever-growing community. Visit our new website today and experience the evolution firsthand. We look forward to connecting with you and sharing the boundless possibilities that lie ahead. Our Company Start from the paper machine clothing, and now expand not only for paper machine and paper machine spare parts, but also corrugator equipment and corrugator spare parts, heat insulation material, industrial felts and etc.

    2023 08/21

  • Huatao company celebrates its 15th anniversary!
    Huatao Company is a trading company established in 2008. It focuses on selling various industrial products and is committed to providing excellent products and services for the industrial product industry. It has established an excellent reputation in the industrial product industry with high-quality products and excellent services. We start from the paper machine clothing, now expand to the paper machine and paper machine spare parts, corrugator equipment, corrugator spare parts and etc. Since its establishment, Huatao Company has been taking customer satisfaction as its core value and constantly striving to provide high-quality and reliable industrial products. They have established close cooperative relationships with world-renowned manufacturers to ensure that the products provided have excellent quality and performance to meet the diverse needs of customers. Huatao's success is inseparable from their professional team and excellent customer service. Their experienced sales team can provide customers with personalized solutions and technical support to ensure that customers' needs are met. They always take customer satisfaction as the primary goal and provide customers with excellent pre-sales consultation and after-sales service. Huatao company has made remarkable achievements in the 15 years of development, but they are not satisfied with it. They will continue to be committed to continuous innovation and improvement, continuously improve the quality level of products and services, and create greater value for customers.

    2023 08/17

  • Sino corrugated 2023 is successfully concluded
    SinoCorrugated 2023: A Resounding Success Shaping the Future of Packaging and Corrugated Industry In a culmination of innovation, expertise, and industry collaboration, SinoCorrugated 2023 has drawn its curtains, leaving a lasting imprint on the packaging and corrugated sector. As a testament to the industry's resilience and commitment to progress, the event stands as a resounding success that has sparked discussions, unveiled groundbreaking solutions, and paved the way for a transformative future. Embracing Change Amidst Challenges SinoCorrugated 2023 emerged as a beacon of hope and opportunity against the backdrop of global challenges. The packaging and corrugated industry, like many others, navigated uncertainties with unwavering determination. The event's success showcases the industry's ability to adapt, innovate, and unite for the greater good. Unveiling Innovations Beyond Borders One of the hallmarks of SinoCorrugated 2023 was its role as a platform for unveiling innovations that transcend geographical boundaries. Industry leaders, manufacturers, and visionaries from across the globe converged to showcase products, technologies, and strategies that are redefining the packaging landscape. From smart packaging solutions to sustainable practices, the event highlighted the industry's commitment to meeting diverse consumer needs while promoting responsible practices. Elevating Sustainability and Eco-Consciousness SinoCorrugated 2023 placed a spotlight on sustainability, aligning with the global push for eco-conscious practices. Exhibitors and attendees explored sustainable packaging materials, recycling solutions, and energy-efficient processes that contribute to a greener future. The event's emphasis on sustainable initiatives reflects the industry's understanding of its role in mitigating environmental impact. Knowledge Exchange and Networking The event was not merely a showcase of products; it was a hub of knowledge exchange and networking. Seminars, workshops, and discussions led by industry experts provided insights into emerging trends, market dynamics, and technological advancements. Attendees engaged in meaningful conversations, sharing insights and experiences that contribute to their professional growth. Technology's Transformative Role SinoCorrugated 2023 underscored the transformative role of technology in the packaging and corrugated industry. Cutting-edge machinery, automation solutions, and digitization initiatives were on full display, demonstrating how technology enhances production efficiency, reduces waste, and elevates product quality. These advancements pave the way for a more agile and competitive industry. Global Collaborations and Partnerships The event also served as a catalyst for global collaborations and partnerships. Industry stakeholders explored new business opportunities, forged relationships, and engaged in cross-border cooperation that promises to shape the industry's trajectory in the years to come. Huatao Group supplies corrugator equipment and corrugator spare parts, such as corrugator belt, corrugating roll, no crush wheel, grinding wheel and slitter blade, cut off blade, spray humidifier system, etc. For any further information, please feel free to contact team3@huataogroup.com.

    2023 07/14

  • Huatao SuperStack Screen Panel had started mass production
    Huatao has completed the innovation of fine screening technology(Front to back tensioning)and started mass production, and can be customized according to customer requirements. Customers using the Huatao SuperStack Polyurethane Screen Panel feedback that output increases over their previous screening equipment. This technological innovation assures an even distribution of material across the entire width of the PU Panel and engages 100 percent of the screening surface.It also minimizes migration of oversize mineral to the outside edges of the screening deck. This even distribution of material leads to increased panel life by reducing panel wear caused by oversize mineral material conveying in concentrated areas. The innovation of this technology can match the installation of various Vibrating Screen, which can greatly increase the output of material screening. The above information comes from Huatao Company, if forwarding, please indicate the source. If want to know more, kindly contact HUATAO GROUP, Whatsapp number: +86 18103317488 , email address: team91@huataogroup.com

    2023 01/16

  • Replies to some questions that customers worry about aerogel powders in the application of Aerogel thermal insulation felt
    1. Explosiveness of aerogel power The main chemical composition of aerogel powder in aerogel insulation blanket HT650,HT200,HT800 and ceramic fiber composite insulation felt is SiO2 and some TiOz, are pure inorganic powders, which are non-volatile toxic and harmful. According to the "Standard Test Method for the Minimum Explosive Concentration of Combustible Dust", a laboratory has tested that the minimum explosive concentration of Aerogel Power is 575g/m3. Aerogel Power was tested for minimum ignitability. Tested with the highest capacitance 28.8 joules that can be released by the electrostatic discharge tester, no fire was detected by visual inspection. 2. Exposure limits for aerogel power Exposure limits for dust from thermal insulation work depend on the country of use and regulations for handling materials that generate respirable amorphous silica and contain titanium dioxide dust. The crystalline silicon content in aerogels is 0%, and OSHA limits the exposure limits for aerogels: particulate matter limits of 15 mg/m3 (all dust) and 5 mg/m3 (respiratory dust). For example, the US National Institute of Occupational Safety and Health (NIOSH) standard for amorphous silica is 6mg/m3, and the limit value of amorphous silica stipulated by German MAK is 4mg/m3 (respirable part). 3. Waste disposal of aerogel insulation materials The finished aerogel insulation materials contains no liquid. Aerogel insulation materials waste can be disposed of in landfills that accept industrial waste. Due to the dust generated during the disposal of waste airgel thermal insulation materials in the landfill, the industrial waste landfill should be informed of this situation during the waste disposal approval process. 4. The harm of aerogel powder to human body Aerogel products are porous materials based on the colloidal structure of nanoparticle silica. The aerogel composite thermal insulation material was not detected to have nanoparticles falling under the external force of large impact force and shear force. The particle size of the dust dropped during the production and use of aerogel materials generally ranges from tens to thousands of microns, as long as the user adopts traditional methods or personal protective measures that are in line with current global or experimental material exposure control , to safely dispose of the products we manufacture and sell. These exposure limit values apply to amorphous silica, titanium dioxide or other additives in our products. The above information comes from Huatao Company, if forwarding, please indicate the source. If want to know more, kindly contact HUATAO GROUP, Whatsapp: +86 13331385676 , email : maple@huataogroup.com

    2023 01/06

  • Combi felt successfully installed and runs for over 30 days
    Our Combi Press Top & Bottom Felt was successfully installed and running for more than 30 days. For Combi papermaking felt, you could choose our 1800GSM Endless seam felts, and for the Shoe Press, please select 2000GSM Seamed Felt. The Felt seam joint could be installed within 30mins, highly saving maintenance time and reducing downtime loss. The felt has a good performance on the paper machine that produces linerboard 125-175 gr / m2 at 800m/min working speed and produces 160-280 gr/m2 gypsum board at 500--600m/min. See its features and benefits as follows: Hybrid Construction: Combi felts are constructed using a combination of different materials, such as synthetic fibers and traditional materials like wool or cotton. This hybrid construction allows them to provide superior performance characteristics that are tailored to various paper grades and machine configurations. Optimized Surface Properties: Combi felts are designed to have specific surface properties that optimize water drainage and paper surface smoothness. These felts help to achieve uniform dewatering, reduce sheet marking, and enhance paper formation. Enhanced Durability: The use of modern synthetic fibers in Combi felts enhances their wear resistance, extending their lifespan and reducing the frequency of replacements. This contributes to reduced downtime and maintenance costs. Consistent Performance: Combi felts are engineered to maintain consistent performance over a longer period of usage. This ensures that the quality of the paper produced remains stable throughout the production run. Customization: Manufacturers can tailor Combi felts to specific paper grades and machine conditions, allowing for optimization of dewatering efficiency, moisture control, and paper properties. Improved Runnability: The design of Combi felts reduces the risk of edge flutter and wrinkling, leading to smoother machine operation and fewer production interruptions. Reduced Energy Consumption: The optimized drainage properties of Combi felts can contribute to more efficient dewatering, reducing the energy required for subsequent drying stages of paper production. Environmental Considerations: Combi felts often incorporate eco-friendly materials and production methods, aligning with sustainable practices within the paper industry. Compatibility: Combi felts are engineered to be compatible with modern high-speed paper machines, ensuring they can withstand the demands of rapid production while maintaining performance. Application: Combi felts are typically used in the press section of paper machines, where they come into contact with the paper sheet and aid in water removal, sheet consolidation, and the transfer of the paper web through the press rolls.

    2022 10/28

  • The ways to solve the insufficient tension of the tensioned screen
    People who have used the vibrating screen know that insufficient tension of the vibrating screen will also have a certain impact on the production efficiency and output of the equipment. Through the screen area, the depression of the screen surface causes material retention, hinders the forward movement of the material layer, and ultimately affects the productivity of the vibrating screen. Let me share with you some ways to solve the problem of insufficient screen tension. Before sharing the method, let`s take a look at the consequences of insufficient tension of the vibrating screen as follows: 1. The screen has large bending deformation and serious stress concentration. The relaxation of the screen is prone to secondary vibration, and the screen is damaged prematurely under the action of alternating stress, causing considerable economic losses. 2. The bending deformation of the sieve affects the effective penetration area of the sieve holes so that the materials that should have been penetrated cannot penetrate the sieve, leading to a reduction of the screening efficiency. 3. Concavity on the screen surface causes material retention, hinders the forward movement of the material layer, and ultimately affects the productivity of the vibrating screen. 4. Part of the screen is concentrated for a long time, which will easily cause the screen to rupture, making the materials that should not be screened pass through the screen, and affect the screening effect. How to solve this problem Through establishing a mathematical model for the tensioned screen, the theoretical calculation shows that the bending deformation of the screen is related to the tension, the distance between the supporting beams, and the load. (1) Increasing the tension and reducing the support spacing can reduce the bending deformation of the screen and improve the flatness of the screen surface. (2) Established a finite element analysis model of the screen based on ANSYS, studied the influence of the tension and support spacing on the bending deformation of the screen, and verified the correctness of the theoretical analysis. (3) Increasing the number of supports can reduce the bending deformation of the screen, but when the number of supports reaches a certain value, the effect of increasing the number of supports on the deformation of the screen is no longer so obvious. In addition, increasing the number of supports makes the screen force more uniform and reduces stress concentration. (4) Increasing the tension can also reduce the bending deformation of the screen, but it will increase the internal stress of the screen. Applying tension to make the screen withstand a certain prestress is beneficial to improve the flatness of the screen, but it should be less than the safe allowable value. Huatao supplies the vibrating screen mesh as follows: polyurethane screen panel, polyweb urethane screen, tufflex screen, poly ripple screen, flip flop screen mat, and etc. For further information, please feel free to contact team3@huataogroup.com

    2022 08/23

  • Comparison table of commonly used sieve mesh count and particle size
    Screening or sieving is a very important step in the process of processing materials. Different materials have to go through different sieves in different processing methods. The most important parameter of the screen is the "mesh". Such as 100 mesh, 500 mesh, and so on. Many friends have been puzzled by the relationship between the number of meshes and the aperture of the screen. Today Chris will take you to learn about the relevant content. Mesh count refers to the number of holes on the screen per square inch (1 inch = 25.4mm). 50 mesh means 50 holes per square inch, 500 mesh is 500 holes. The higher the mesh number, the more holes will be. Now there is no unified technical standard for powder particle size in China and abroad. Each enterprise has its own definition and expression method of particle size index. Screen specifications in different countries and industries have different standards, so the meaning of "mesh" is also difficult to unify. At present, international comparisons use the calculated diameter of particles of equivalent volume to express the particle size. Expressed in μm or mm. After introducing the required standards of meshes, Chris also prepared a comparison table of commonly used sieve meshes and particle sizes for everyone as follows: Comparison table of commonly used sieve mesh number and particle size Polyweb Urethane Screen is our highlight product for our clients. It is widely used in industrial sands, metal powders, and other industrial mineral processing plants to achieve better quality products during dry or wet screening. The normal size is 1040*700mm. The minimum open area could be made to 0.063mm(63μm) to help you reduce the material loss in your fine material production. Huatao Group can also supply the polyurethane screen panel, tufflex screen, poly ripple screen, woven vibrating screen wire mesh, and etc. For further information, please feel free to contact team3@huataogroup.com.

    2022 08/18

  • 10 reasons why corrugated cardboard is flattened?
    The effect of corrugated cardboard being flattened If corrugated cardboard is flattened, it will seriously affect the pressure change of the cardboard, and it will also directly affect the compression resistance of the empty box of the carton. The two cases of corrugated cardboard being flattened. As to this issue, please check out the 10 main reasons and solutions below. The main reasons for corrugated cardboard being flattened The surface of the corrugating roller is not clean. The heat of the corrugating roller is not balanced. Adhesive viscosity is not enough. Adhesive adhesion is too large. The double facer belt is stained and the breathability is not good. There are foreign objects on the surface of the Double Facer machine hot plate. The cardboard guide belt is dirty, worn, or out of position. The running speed of the glue roller and single-sided corrugated board is not suited. The tension force of corrugated base paper is large. The unbalanced moisture content of face paper, core paper, and tile paper. Solutions for corrugated cardboard being flattened Remove the dirt on the surface of the corrugating Roller. Check the situation for the condensate drain. Adjust the production of adhesives, and check the quality of various raw materials. Correct and adjust the glue gap and reduce the glue amount. Wash and dry the double facer belt. Remove foreign objects from the hot plate and keep the surface clean. Check and correct the cardboard guide belt, clean up dirt, or replace the cardboard guide belt. Increase the tension control system of the paper flyover to increase or decrease the tension. Reduced friction in the tension system. Properly preheat or replace face paper, core paper, and corrugated base paper.

    2022 08/08

  • Production principle of the single corrugated board?
    How to produce good quality single corrugated cardboard? The Single Facer machine is composed of a paper roll holder and a single-sided corrugated forming machine, which plays a decisive role in the quality of the corrugated board. First, the corrugated core paper is heated, and then the corrugated roll is used to make the required corrugated shape, and glue (starch adhesive) is applied to the corrugated peak and bonded with the single-sided corrugated paper to form single-sided corrugated cardboard. The heating methods of the core paper include steam heating, electric heating, and oil heating. Choosing the right corrugating roll is also very important to produce good quality corrugated cardboard. It is better to provide the drawing of the corrugating rolls you need to the supplier. As a leading supplier of corrugator spare parts, we can supply chrome-plated and tungsten carbide material corrugating rolls for your choice and A, B, C, E, F, G, N, and O flute types to meet your special request.

    2022 08/02

  • How to classify corrugating rolls?
    Corrugating roll is a very important part of Single Facer, as the heart of the Single Facer may have a big effect on the forming and also the quality of the corrugated cardboard. So it must be very careful to choose the corrugating rolls. We are glad to help you to choose suitable corrugating rolls. We suggest you can consider purchasing the corrugating rolls from the following five dimensions. 1. Classified by flute type Normally the flute types are divided into A ,AC .C .BC ,B ,BE ,E1 ,E2 ,F ,G, N, and O flute type. 2. Classified by flute shape Common shapes are U-shaped and V-shaped. 3. Classified by surface hardness treatment Surface nitrided corrugating roll Surface laser corrugating roll Chrome plated corrugating roll Tungsten carbide corrugating roll 4. Classified by way to transfer the paper inner suction mode outer suction mode positive suction mode 5. Classified by way to heat and drain traditional siphon intake mode flume siphon intake mode peripheral heating mode To get the most suitable corrugating rolls, it is better to provide the drawings to the supplier.

    2022 07/27

  • Inspection method before installation of corrugating roll?
    The corrugating roll is an important part of Single Facer. It is divided into the upper corrugating roll and lower corrugating roll. As the heart of the Single Facer, it highly affects the forming quality of the corrugated cardboard. After receiving the corrugating rolls, it is very necessary to do an inspection before installing the new corrugating rolls on the Single Facer. Please find the detailed checking process as follows: First clean and check the corrugated surface of the corrugated roll (including the surface plating quality). Then clean and check the fastening parts of each connection (including internal and external threads). Finally, check the outer diameter and middle height of the corrugated roll (the entire roll surface is divided into more than five measurement points from both ends to the middle. If you have any questions or new requirements for the corrugating roll and other corrugator spare parts, such as corrugator belts, slitter blades, grinding wheels, etc. please feel free to contact us for further information.

    2022 07/19

  • Suggestion On The Addition Amount And Position Of Papermaking Auxiliaries In Paper Mills
    Chemical additives for papermaking include process additives and functional additives, and the amount and method of addition vary with various conditions such as different paper mills, different paper grades, and different paper machine. The general consideration is: functional additives should be added as close as possible to the place where the problem occurs and the place that may affect the performance; process additives should be considered comprehensively, not only taking into account the reaction time of chemicals and fibers, but also considering the loss of added chemicals and the disruption of the reaction by mechanical action in the process. Advice on the addition of chemicals 1, Addition of PAM Adding amount: 100~250g/t Adding position: Round sieve exit 2, Addition of dyes Blue dye: 50~100 ml/t (stock solution) Purple dye: 20 ~40 ml / t (stock solution) Add position: Round sieve entrance 3, Addition of Cationic Starch The amount of addition: 8 ~ 12kg/t Adding position: the discharge port of the adjustment box 4, Addition of brighteners Addition amount: 0.5~10kg/t (stock solution) Adding position: Round sieve entrance 5, Addition of AKD Addition amount: 12~25kg/t (stock solution) Adding position: the discharge port of the adjustment box 6, Addition of defoamer Add position: off-line or off-machine white water tank 7, Addition of fungicides (1) Addition of sizing system: Adding amount: In summer, add 150~200 ml every 4 hours ; In winter, add 75~100 ml every 4 hours Adding position: Size forming tank, starch tank, PAM tank, white water tank (2) Addition of broken paper system: Added position: Broken pulp tank Adding amount: In summer, add 150~200 ml every 4 hours ; In winter, add 75~ 100 ml every 4 hours (3) Adding method: the sizing system and the broken paper system are automatically added with metering pumps 8, Addition of Dispersed Rosin Gum: Addition amount: 6~28kg/t (stock solution) Adding position: the discharge port of high-level box 9, Addition of alum: Addition amount: 25~35kg/t (solid) Adding position: mixing tank Precautions on the addition of chemicals 1. When acid sizing is changed to neutral sizing, it must be thoroughly cleaned to prevent chemical deposits or hydrolyzates from affecting production. 2. When all auxiliary raw materials are used, they must be filtered with a 60-100 mesh screen. 3. When adding sizing agent, the dosage should be adjusted according to the sizing degree and Cobb value of the finished paper. Production interruptions should be prevented during the joining process. 4.When cationic polyacrylamide is dissolved, water must be added and the stirrer must be started before feeding. PAM must be dissolved first through the disperser. The temperature should be controlled between 40 and 50°C during stirring. The ideal stirring speed should be less than 30r/min and stirring time. For 90-100min, the weight of dry powder should be accurately weighed to ensure the stability of the preparation concentration, and the filter screen should be cleaned regularly. The ideal stirring speed is less than 30r/min, the stirring time is 90-100min, the weight of the dry powder should be accurate to ensure the stability of the preparation concentration, and the filter screen should be cleaned regularly. 5.When preparing dyestuffs, the nameplate should be clearly seen to avoid confusion and affect the adjustment quality. When the metering pump is started, it must be checked whether the valves are open, otherwise the motor will be burned. When the machine is stopped, the valves must be closed in time to avoid cylinder suction.

    2022 07/11

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