Bag filter bags (also known as dust bags, bag filter bags or dust bag filters) are the core components used to capture air dust in industrial dust removal systems. As a professional dust removal solution provider, TONGLI provides a variety of high-performance filter bag products for the entire industry, adapted to different working conditions and dust characteristics. The product matrix covers a variety of categories such as felt dust bags, pulse jet filter bags, glass fiber filter bags, high-temperature filter bags, 1-micron precision filter bags, pleated filter bags, etc. Relying on the support of a professional technical team, our engineers can recommend the optimal filter bag selection scheme based on the specific filtering parameters of customers. Especially as a core supplier of equipment in the cement industry, we not only provide pulse bag filter bags of standard materials and models, but also provide customized development services based on equipment parameters and working conditions. The product application areas fully cover traditional industries and emerging environmental protection industries, including traditional fields such as thermal power, power generation, steel, and chemicals, as well as industrial flue gas treatment in renewable energy industries such as biomass power generation and waste incineration. Through continuous technological innovation and industry intensive cultivation, TONGLI is committed to providing global customers with accurate and efficient dust control solutions.
High efficiency performance and comprehensive advantages of bag filter bags
The filter bag of the bag filter is the core component of the dust removal system. It can significantly reduce dust penetration, extend equipment life and reduce maintenance costs by efficiently capturing fine particles, improving filtration efficiency and increasing air volume. Its wide applicability covers a variety of working conditions and supports customized media selection. The filter bag has outstanding features: high dust holding capacity and low pressure drop design ensure continuous and stable operation, and acid and alkali resistant materials enhance durability; surface load optimization and improved cleaning efficiency further extend service life. In addition, the characteristics of easy installation and low maintenance cost combined with high dust removal efficiency make it a key solution that takes into account both economic and environmental performance, and is widely used in the field of industrial dust control.
Analysis of multi-field applications and customized specifications of dust collector filter bags
Specifications
- Material selection: polypropylene, polyester, acrylic, aramid, glass fiber, PPS, P84, PTFE, etc., adapted to different working conditions.
- Temperature range: up to 260°C (depending on the material characteristics).
- Filter accuracy: 0.5-200 microns, covering the interception needs from fine particles to coarse dust.
- Physical properties: weight about 339.0 g/m² (depending on size/material), thickness 1.47-1.72 mm, air permeability 59-87 m³/h (@1.25 mbar).
- Structural design: The top can be selected with snaps, loops, rope buckles or rough edges; the bottom supports flat seams, round bottoms, curled edges, etc.; the surface treatment includes ordinary, glazed, singed, Teflon coating, etc., to enhance corrosion resistance or dust repellency.
Application Areas
- Industrial scenarios: dust control in chemical processing, food and beverage, pharmaceuticals, pulp and paper, cement production, metallurgy, coal-fired/wood-fired boilers, etc.
- Function coverage: dehumidification and moisture absorption, agglomerated dust separation, fiber and non-fiber particle filtration, adapting to complex dust environments.
Core Advantages
- Flexible adaptation: A variety of materials, structures and surface treatment solutions to meet harsh conditions such as high temperature, acid and alkali corrosion.
- Efficient and stable: Balance between precise filtration and air permeability to ensure low-resistance and efficient operation of the system, reduce energy consumption and maintenance frequency.
- Cross-industry applicability: From food-grade safety to heavy industrial dust control, providing full-scenario dust control solutions.
Filter Bag Products
Polyester needle felt filter bag
Material: polyester
Process: The surface of the filter bag is made of polyester fiber and conductive fiber, which are needle-punched into a polyester base cloth, and the filter bag is then treated with PTFE impregnation and ePTFE coating.
Continuous working temperature: ≤130℃
Instantaneous tolerance temperature: 150℃
Features: high strength, high porosity, good air permeability, high dust collection efficiency, long service life; suitable for humid working conditions, low energy consumption and maintenance costs; anti-static, waterproof, and oil-resistant.
Acrylic coated filter bag
Material: acrylonitrile homopolymer fiber (acrylic fiber)
Process: The filter bag surface is made of high-quality acrylic fiber, and the base fabric is made of high-strength acrylic long fiber. After pre-treatment and heat setting, it is produced using needle punching equipment. The filter bag surface is treated with PTFE impregnation and PTFE coating.
Continuous working temperature: ≤120℃
Instantaneous tolerance temperature: 150℃
Features: Excellent physical and chemical indicators, stable size; high cost performance, low energy consumption, high filtration accuracy, good corrosion resistance, water resistance, oil resistance, and anti-condensation.
PPS needle felt filter bag
Material: PPS (polyphenylene sulfide)
Process: The surface layer is made of PPS (polyphenylene sulfide) fiber and conductive fiber, blended with high-performance PTFE (polytetrafluoroethylene) base cloth, and needle-punched. The filter bag is post-processed by singeing, calendering, PTFE impregnation, etc.
Continuous working temperature: ≤160℃
Instantaneous tolerance temperature: 190℃
Features: The filter material has the characteristics of high performance, high cost performance, anti-static, etc., which significantly improves the filter material's anti-oxidation, corrosion resistance, temperature resistance, dimensional stability, enhances its waterproof performance, improves filtration accuracy, and extends service life.
PTFE coated filter bag
Material: PTFE (polytetrafluoroethylene)
Process flow: high-quality PTFE fiber and high-performance PTFE base cloth are used to make filter bags through needle punching, and then singeing, calendering, PTFE impregnation, PTFE coating and other processes are carried out.
Continuous working temperature: ≤240℃
Instantaneous tolerance temperature: 260℃
Features: The cleaning pressure and frequency required for the filter bag are small, which reduces compressed air consumption, maintenance and operating costs. High filtration accuracy, good tensile strength stability, high temperature resistance, corrosion resistance, waterproof and oil resistance, excellent comprehensive performance, and wide range of applications.
P84 needle felt filter bag
Material: P84 (polyimide)
Process: The filter bag surface cloth and base cloth are made of high-quality polyimide fiber, and are made by needle felt process. The filter bag is immersed in PTFE mixed solution and sintered at high temperature to form a protective film on the fiber surface.
Continuous working temperature: ≤240℃
Instantaneous tolerance temperature: 260℃
Features: Smooth surface, high dust removal rate, easy to clean; physical and chemical indicators are significantly improved after pre-treatment; has good waterproof, oil-proof and anti-condensation functions; excellent anti-oxidation and corrosion performance.
Glass fiber expanded filter bag
Material: alkali-free glass fiber
Process flow: Select high-quality alkali-free glass as raw material, and weave it into high-quality filter cloth through processes such as drawing, spinning, warping, weft yarn expansion, and weaving. Then, it is processed by pre-treatment and heat setting to make a filter bag that meets the working conditions.
Continuous working temperature: ≤260℃
Instantaneous tolerance temperature: 280℃
Features: The surface microporous membrane has a small and uniform pore size (0.10-2.0μm), which can separate all dust larger than its particle size, and the dust removal efficiency is high and stable. The texture is soft, the dust is easy to peel off, saving operating costs; it is resistant to oxidation, corrosion, water, and oil, and is suitable for high humidity conditions.
Aramid needle felt filter bag
Material: Aramid (Nomex)
Process flow: Use high-strength aramid long fibers to weave high-strength aramid base fabric. The surface layer is made of aramid fibers and high-performance aramid base fabric. After the filter material is made, the product is immersed in a PTFE mixed solution and then sintered at high temperature to form a PTFE protective film on the fiber surface.
Continuous working temperature: ≤204℃
Instantaneous tolerance temperature: 300℃
Features: high filtration accuracy, good cleaning effect, low operating cost, long service life; resistance increases very slowly, easy to meet the smoke emission concentration requirements; excellent corrosion resistance, water resistance, and oil resistance.
High-silicon (modified) filter bag
Material: high-silica fiber
Process flow: high-quality high-silica fiber is selected as raw material, and it is woven into high-quality filter cloth through processes such as drawing, spinning, warping, weft yarn expansion, and weaving. After pre-treatment and heat setting, the surface is immersed in PTFE mixed solution and then coated with PTFE.
Continuous working temperature: ≤260℃
Instantaneous tolerance temperature: 280℃
Features: high filtration accuracy, light and flexible, easy to clean, high fabric strength, anti-oxidation, corrosion resistance, waterproof and oil-proof, suitable for high humidity conditions and adaptable to back-blowing airflow conditions.
How to choose industrial bag filter bags
The selection of industrial bag filter bags is crucial. Inappropriate filter bags not only affect the dust removal effect of bag filter, but also reduce the service life of the dust collector. The selection of dust filter bags should be based on seven factors, including the particle size of the filter material, filtration speed, dust concentration, cleaning method, flue gas temperature, humidity, and chemical properties. Dust filter bags are made of various high-precision, wear-resistant, high-temperature resistant, and corrosion-resistant filter materials made of high-performance fibers and high-strength base fabrics. They are produced through acupuncture, calendering, singeing, high-temperature shaping, emulsion impregnation, lamination, and other processes according to actual working conditions. The ultimate goal is to achieve extremely efficient dust removal and filtration and a longer service life. Generally speaking, dust filter bags are made of polyester, acrylic, fluoromethane, PTFE, PPS, and various composite materials. So, among such a wide variety of dust filter bag materials, how to choose correctly?
Selection based on gas characteristics
Gas temperature
The temperature of dust-laden gas is an important factor to be considered when selecting filter media. People usually call dust-laden gas below 130°C normal temperature gas, and dust-laden gas above 130°C high temperature gas. Therefore, filter media are divided into two categories: normal temperature filter media below 130°C and high temperature filter media above 130°C. Therefore, appropriate filter media should be selected according to the flue gas temperature.
There are two types of filter media temperature resistance: "continuous long-term use temperature" and "instantaneous short-term temperature". "Continuous long-term use temperature" refers to the long-term temperature at which the filter media can be used and run continuously, and the filter media should be selected based on this temperature; "instantaneous short-term temperature" means that the maximum use temperature of the filter media is not allowed to exceed 10 minutes per day. If the time interval is too long, the filter media will age or soften and deform. If the temperature is lower than 130°C, conventional filter bag materials such as polyester can be selected; if the temperature is higher than 130°C, high-temperature resistant dust filter bags such as Flumex and PTFE dust filter bags should be selected.
Gas humidity
Dust-containing gas can be divided into three categories according to relative humidity: dry gas with relative humidity below 30%, normal gas with relative humidity between 30% and 80%, and high-humidity gas with relative humidity above 80%. For high-humidity gas, especially SO gas at high temperature, condensation will occur after the gas is cooled, which will not only cause scaling and clogging on the filter bag surface, but also corrode the structural materials, so special attention should be paid.
The following points should be noted when selecting humid gas filter materials:
- Wet gas can make the dust captured on the surface of the filter bag wet and sticky, causing the bag to stick. Therefore, smooth and long-fiber filter materials such as nylon and glass fiber should be selected. These filter materials are easy to clean and can be treated with silicone oil and fluorocarbon resin, or coated with acrylic acid, polytetrafluoroethylene and other substances on the surface of the filter material. Plastic sintered boards and coated materials have excellent moisture resistance and are easy to clean. They should be the first choice for high-humidity gases.
- If the gas has the characteristics of high temperature and high humidity at the same time, it may affect the temperature resistance of the filter material. In particular, materials with poor hydrolysis stability such as nylon, polyester, and polyamide should be avoided as much as possible.
- Polyester fiber has good mechanical properties and acid and alkali resistance at room temperature, but it is very sensitive to water and air, and is prone to hydrolysis, which significantly reduces its own strength. The long-term working temperature of polyester fiber in dry flue gas can reach up to 130°C, but in high-humidity flue gas, the long-term working temperature can only be reduced to 60-80°C. Nomex fiber has good high temperature and chemical resistance, but in high humidity smoke, its temperature resistance will drop from 204°C to 150°C.
Chemical properties
When selecting filter media for various furnace flue gas and chemical waste gas, it is necessary to consider the acid, alkali, oxidant, organic solvent and other chemical components, and they are often affected by factors such as temperature and humidity. Therefore, when selecting filter media, it is necessary to comprehensively consider the main factors according to the chemical composition of the dust-containing gas.
The temperature resistance of Nomex fiber is better than that of polyester fiber, but its chemical corrosion resistance is slightly weaker under high temperature conditions. Phenolic fiber has excellent performance in high temperature resistance and acid and alkali corrosion resistance, and is suitable for coal-fired flue gas dust removal, but its antioxidant ability is poor. This weakness can be compensated by polyimide fiber, but its hydrolysis stability is not ideal. Polytetrafluoroethylene fiber has the best chemical corrosion resistance, but it is more expensive.
Selection based on dust characteristics
Hygroscopicity of Dust
For hygroscopic dust, as humidity increases, the cohesion and adhesion of dust particles increase, while fluidity and charge decrease, so that they adhere to the surface of the filter bag. Over time, it will lead to incomplete cleaning and the formation of dust cakes. Some dusts, such as CaO, CaCI, KCl, MgCl, NaaCO, etc., will undergo chemical reactions after absorbing moisture, causing changes in their properties and morphology. This phenomenon is called deliquescence. Deliquescent dust adheres to the surface of the filter bag, which is the last thing a bag filter wants to see. For moist and deliquescent dust, the selection of filter material should consider the smoothness, linting, hydrophobicity, etc. of the filter material, and it is best to choose coated filter material. Many wet and sticky dust particles require the filter material to be made of filament linting cloth or needle felt that has been treated with surface singeing, calendering, mirror polishing, etc., and make full use of processes such as impregnation, coating, and film formation. In terms of material, nylon, glass fiber, etc. are better.
Combustibility and charge of dust
Some dusts can burn or explode in the air when they encounter sparks at a certain concentration. The flammability of dust is related to its particle size, composition, concentration, combustion heat and combustion speed. The smaller the particle size and the larger the surface area, the greater the possibility of ignition. The source of dust combustion or explosion is usually caused by friction sparks, static sparks or incandescent particles, among which charge is the most harmful. This is because synthetic fiber filter materials are usually easy to be charged. If the dust particles are also charged, it is very easy to generate sparks. Therefore, for flammable and easily charged dusts such as coal powder, coke powder, aluminum oxide powder, and magnesium powder, flame retardant filter materials and conductive filter materials should be used. Fiber woven filter materials with an oxygen index greater than 30, such as PVC, PPS, P84, PTEF, etc., are generally considered safe; for fibers with an oxygen index less than 30, such as polypropylene, nylon, polyester, polyamide, etc., flame retardants can be used for impregnation. Antistatic filter media refers to a filter material that is conductive in the longitudinal or transverse direction by mixing conductive fibers into the filter media fibers. Common conductive fibers include stainless steel fibers and modified (carburized) chemical fibers. The former has stable and reliable conductivity, while the latter deteriorates over time. The mixing ratio of conductive fibers is about 2% to 5% of the matrix fiber.
Dust fluidity and friction
When the dust has strong fluidity and high friction, it will directly wear the filter bag and shorten the life of the filter bag. The abrasiveness of rough and irregular diamond-shaped particles is more than 10 times higher than that of smooth spherical particles. Dust particles are most abrasive when they are around 90 microns, and the abrasiveness is very weak when the particle size is reduced to 5-10 microns. Abrasiveness is proportional to the 2-3 power of the air flow velocity and the 1.5 power of the particle size, so the air flow velocity and its uniformity must be strictly controlled. Common dusts such as aluminum powder, silicon powder, coke powder, carbon powder, sintered ore powder, etc. are all highly abrasive dusts. For abrasive dusts, it is recommended to use filter materials with good wear resistance.
When selecting highly abrasive dust filter materials, three points need to be considered:
- Chemical fiber is better than glass fiber, expanded glass fiber is better than ordinary glass fiber; thin, short, curly fibers are better than thick, long, smooth fibers.
- It is best to use needle punching for felt materials to strengthen the interweaving of fibers, and satin fabric is the best for woven materials. Brushing the surface of woven materials is also a measure to improve wear resistance, but felt materials, twill fabrics, and napped filter materials will increase the resistance value.
- For general filter materials, surface coating, compression treatment and other methods can also improve their wear resistance. For glass fiber filter materials, silicone oil, graphite, polytetrafluoroethylene resin and other treatments can improve their wear resistance and flex resistance. However, when coated filter materials are used under highly abrasive conditions, the coating film may wear out prematurely and lose the coating function.
Conclusion
Dust filter bags are widely used in industries such as steel, thermal power, chemicals, building materials, waste incineration, and glass. They not only comprehensively improve the world's ability to prevent and control air pollution, but also achieve ultra-clean emissions and meet major strategic needs for environmental protection. Therefore, the selection of dust filter bags in various industries must be carefully considered to achieve the ideal effect of their use.
Application of bag filter bags
Low pressure long bag dust collector
Scope of application: widely used in dust control and material recovery in metallurgical industry, building materials industry, electric power, chemical industry, carbon black asphalt concrete mixing, boiler, flue gas dust removal and other industries. Low-pressure long bag dust collector is suitable for outdoor, high-temperature gas, large air volume environment, closed box design, small air leakage coefficient, large air volume, high dust removal efficiency, good dust removal effect. The low-pressure long bag dust collectors of different specifications provided to customers are used for dust removal at the kiln head of 600t/d and 800t/d active lime production lines. Customers reported that the equipment is running well, the exhaust gas meets the standard dust concentration ≤30gnm3, and the dust removal effect is good.
Introduction to Low Pressure Long Bag Dust Collector
The long bag low pressure dust collector is a product developed by combining the advantages of the current air box pulse dust collector and the long bag pulse dust collector. It is a large dust removal equipment with large air volume, good dust cleaning effect, high dust removal efficiency, emission concentration in line with national emission standards, reliable operation, convenient maintenance, and small footprint. Structural composition: The dust collector is mainly composed of a clean air chamber, a filter chamber, a bracket, a filter device, a blowing device, an ash discharge device, an ash conveying device, etc.
Technical parameters of low pressure long bag dust collector
| Model | AG LCM420-2x6 | AG LCM462-2x4 | AG LCM462-2x5 | AG LCM462-2x6 | AG LCM462-2x7 | AG LCM462-2x8 |
| Air Volume (m³/h) | 240,000–302,400 | 170,000–221,700 | 220,000–277,000 | 266,000–332,000 | 310,000–388,000 | 350,000–443,500 |
| Filtration Area (m²) | 5,040 | 3,696 | 4,620 | 5,544 | 6,468 | 7,392 |
Performance characteristics
- The pulse jet cleaning technology is adopted, which has strong cleaning ability, high dust removal efficiency, low emission concentration, small air leakage coefficient, low energy consumption, low consumption, small footprint, stable and reliable operation, and good economic benefits. The low-pressure long bag dust collector adopts a submerged low-pressure pulse valve, and the blowing pressure is only 2-0.5MPa, with small resistance, fast opening and closing, and strong cleaning ability. Due to the good cleaning effect and long cleaning cycle, the energy consumption of back-blowing gas is reduced.
- The pulse valve has a long service life and good reliability. Due to the low blowing pressure (2-0.4MPa), the pressure on the pulse valve diaphragm and the impact force during opening and closing are small. At the same time, due to the long cleaning cycle, the number of pulse valve openings is also reduced accordingly, thereby extending the service life of the pulse valve and improving the reliability of the pulse valve.
- The low-level equipment has low running resistance and large blowing effect. The low-pressure pulse long bag dust collector adopts a chamber pulse back-blowing offline cleaning method to avoid the phenomenon of repeated dust adsorption and reduce the bag resistance.
- The cabinet has good air tightness and sealing performance. The cabinet door is made of excellent sealing materials and is clean. There is no kerosene leakage during the production process, and the air leakage rate is low.
- The inlet and outlet air ducts are compact, equipped with an air balancing device, and the air flow resistance is small.
- The bag can be replaced without stopping the machine, and the normal operation of the equipment is not affected during maintenance. The upper bagging method is adopted to improve the convenience of bag replacement operation.
- The perfect control system ensures the long-term operation of the dust removal system.
Working principle of low pressure long bag dust collector
The dusty air enters the dust collecting chamber of each room from the air inlet distributor. After the diversion effect, the large dust particles are separated and fall directly into the ash hopper, and the fine dust enters the filter chamber evenly. The clean gas is adsorbed on the outer surface of the filter bag, passes through the filter bag into the clean room, and is discharged into the atmosphere through the offline valve and exhaust pipe. As the filtering condition proceeds, more dust accumulates on the filter bag. When the resistance of the device reaches the limit resistance value (generally set to 1500Pa), the pressure difference setter or the cleaning time is set by the cleaning control device. After reaching the set value, the offline valve is automatically closed, and the electric pulse valve is opened according to the set program, and then the air is sprayed. The instantaneous injection of compressed air increases the pressure in the filter bag, and the dust on the filter bag is shaken off (even sticky dust can be shaken off more thoroughly into the hopper). The purified gas is discharged into the atmosphere through the chimney after the kiln tail fan).
New steel silo dust collector
Storage silos mainly store cement, fly ash, coal ash and other powdered materials. These powdered materials are delivered into the silo in bulk under the action of compressed air. The silo must be ventilated after contacting the positive pressure gas, otherwise it is easy to explode. Therefore, a positive pressure dust collector should be installed on the silo cover. Bulk materials are prone to release high concentrations of dust into the air during automobile transportation. Pleated filter elements are prone to blockage in this case. According to the experience of the cement and steel industries, dust collectors should use waterproof filter bags. As the filtration continues, the dust outside the filter bag continues to thicken, and the equipment resistance gradually increases. At this time, the filter bag must be cleaned to reduce the equipment resistance. In order to avoid strong cleaning, which will damage the filter bag and destroy the original dust layer outside the filter bag, new silo dust collectors all use positive pressure pulse bag dust collectors.
Working principle of the new silo dust collector
Under the action of compressed air, dust flows from the truck into the silo. Some coarser dust particles are deposited in the silo under the action of gravity, and the smallest particles flow into the filter chamber of the dust collector with the airflow. The filter unit is the dust filter bag outside the filter bag, and the filtered gas is produced through the upper exhaust channel. When the resistance of the dust collector reaches the set value, the control device starts, lifts the valve, closes the air outlet, and then opens the electromagnetic pulse valve. The pulse valve starts to work, and the compressed air in the purge pipe immediately inflates the box to remove the dust on the filter bag. About 10 to 15 seconds after the exhaust valve is opened, it re-enters the filtration stage to complete the dust collection process, and then cleans the dust one by one according to the above procedure until entering the next dust collection procedure.
Technical features of new silo dust collector
Structural features
The new silo dust collector adopts a box structure, which divides the box into several chambers. Each chamber is equipped with an explosion relief hole, a pulse spray device, and an airflow device. When one of the chambers is full of dust, all other chambers are open.
Convenient design
The new silo dust collector is not only equipped with a maintenance platform and railings on the top, but also has a wire mesh connecting the silo and the dust collector at the bottom to make the airflow uniform and prevent the filter bag from entering the silo and affecting the mixing station. There is an openable lid on the top of the equipment. The filter bag can be directly taken out by opening the lid, which is very convenient for maintenance and inspection. The new silo cover adopts a new type of circulating cleaning chamber, and adjusts the lifting valve and pulse valve of each chamber to achieve the "three states" of filtration, purification, and precipitation. The filtering effect and cleaning effect are better, the equipment resistance is significantly reduced, and the dust emission meets the standard.
Positive pressure design
The new silo dust collector makes full use of the performance of the mixing station silo, without the need to install a blower, to achieve resource optimization and energy saving.
Dust control in concrete batching plants
Studies have shown that long-term exposure to concrete dust can cause serious harm to the body, such as impaired lung function. Even with good equipment protection measures, dust pollution cannot be avoided. Therefore, it is essential to equip your concrete batching plant with concrete batching plant dust control. Concrete batching plant dust control perfectly solves the problem of concrete batching plant dust pollution. Concrete batching plant dust control is designed to collect dust and can help your construction project avoid dust pollution.
Advantages of concrete mixing station dust collector
- It can reduce the loss of raw materials of concrete.
- It can reduce the cost of handling dust and waste.
- It can protect the health of workers.
- It can reduce environmental pollution.
- It can create a better construction environment for mixing plants.
- It can reduce the corresponding water and electricity expenses.
- Prevent and reduce the risk of dust explosions and fires.
- Reduce equipment wear, because fine dust particles can cause severe wear and shorten the service life of equipment.
Concrete mixing system dust collector
A dust collector is specially designed for the mixing system, which is mainly used for dust treatment near the mixer, such as the mixer feed port and the mixer mixing process. The dust collector is easy to operate, can work continuously, does not affect the operation of the mixer, and is suitable for any type of concrete mixing plant.
- Polygonal 304 stainless steel housing
- We use a compressed air pulse jet cleaning system
- Compact design with the best volume to filter surface ratio
- Quick installation, only one person is needed to complete the installation quickly.
- Multi-voltage design meets different electrical specifications
- Filters can adapt to any batching plant. Our equipment is suitable for all types of batching plants. We also accept customization and can customize the parameters you want for you.
- A variety of blower motors are available. We have a variety of blowers to meet any of your needs.
- Multi-block filtration, equipped with compartment bag design, and partition vibration are used to make cleaning more efficient.
- The cleaning standard can be set manually. You can freely control the cleaning standard of the filter and set the cleaning requirements that meet your needs.
- The automatic dust recovery function can be set, which is efficient and convenient, reducing human operation.
Cement silo dust collector
Equipment specifically designed for silo dust collectors can effectively clean dust from cement silo vents. The ventilation cleaning system returns dust from the filter to the silo, greatly improving cleaning efficiency
- Accept customization. Our equipment is suitable for all types of batch plants. We also accept customization and can customize the parameters you want for you.
- Reduce dust emission, strong cleaning ability, high working efficiency, it is the best choice for mixing station dust collector.
- Easy to operate. The operation of the equipment is very simple and easy to learn.
- Quick installation, only one person can complete the installation quickly.
- Can be easily disassembled, installation and disassembly are very convenient.
- Easy to replace the filter, the equipment is made of high-quality materials, and the maintenance cost is low.
Weighing system dust collector
Dust collection device for weighing systems, the device is cylindrical, compact and easy to install. It filters the dust through ventilation and separates it from the air flow. The cleaning system can filter the dust and collect it from the filter before it falls back into the weighing system. Our top cover is specially designed with a hinged device to protect the filter from corrosion.
- High cleaning efficiency. It can filter dust quickly.
- Easy to install. It can be installed quickly by one person.
- Easy to disassemble. It is very convenient to install and disassemble.
- Easy to maintain. The equipment is made of high-quality materials and has low maintenance costs.
Batching system dust collector
In the process of weighing and batching aggregates, we set up dust collectors and ventilation devices to control the airflow in the air, prevent the dust from spreading in the air, isolate the dust from the air, and prevent dust leakage from polluting the air. The dust is filtered through the filter and then returned to the weighing system.
- Strong cleaning ability. Our equipment can not only ensure your cleaning, but also reduce resource consumption for you.
- Equipped with reverse pulse cleaning function
- Normal pressure cleaning system
- The cleaning area is 20 feet, which can also provide a larger cleaning area.
- We can provide you with professional customization, whether it is mobile or fixed, whether it is central or dry mixing, we have equipment that adapts to your mixing station.
Concrete plant dust collector parameters
| Air Volume (m³/h) | 6000 | 12000 | 18000 | 24000 | 30000 | 36000 | 48000 | 60000 |
| Model | PPC32-3 | PPC32-6 | PPC64-5 | PPC64-6 | PPC96-5 | PPC96-6 | PPC96-8 | PPC96-2×5 |
| Filter Area (㎡) | 93 | 186 | 310 | 372 | 465 | 557 | 744 | 929 |
| Filtering Velocity (m/min) | 1–1.2 (constant across models) | |||||||
| Inlet Temperature | Bag filter ＜ 120°C | |||||||
| Filter Bag Size (mm) | φ130 × 2450 | |||||||
| Filter Bag Material | Water & oil repellent needle-punched felt | |||||||
| No. of Filter Bags & Cages | 96 | 192 | 320 | 384 | 480 | 576 | 768 | 960 |
| Cage Size (mm) | φ125 × 2430 | |||||||
| Pulse Valve Model | DMF-Z-50S / DMF-Z-62S | |||||||
| No. of Pulse Valves | 3 | 6 | 5 | 6 | 10 | 12 | 16 | 20 |
| Lifting Cylinder Model | F63 / φ80 / φ100 | |||||||
| No. of Lifting Cylinders | 3 | 6 | 5 | 6 | 5 | 6 | 8 | 10 |
| Equipment Resistance | 1500 Pa | |||||||
| Inlet Dust Concentration | 100 g/m³ | |||||||
| Outlet Dust Concentration | 30 mg/m³ | |||||||
Dust pollution sources in concrete mixing plants
- Dust leakage during the transportation of concrete raw materials.
- Dust leakage caused by cement silos and concrete silos storing concrete raw materials.
- Dust leakage caused by conveyor belts and mixers during mixing.
- Dust leakage caused by weighing and batching of aggregate silos.
Conclusion:
As a key component of bag dust collectors, dust collector bags play an irreplaceable role in industrial waste gas purification with their diverse materials and unique structures. With the increasingly stringent environmental protection requirements and the continuous development of industrial technology, the requirements for the performance of dust collector bags are also getting higher and higher. In the future, we have reason to believe that through continuous technological innovation and material research and development, dust collector bags will achieve greater breakthroughs in improving filtration efficiency, extending service life, and reducing operating costs. Tongli as a famous manufacturer for bag house filter manufacturing, if you have any inquiry, don't hesitate to contact us!
