What is a bag house filter bag dust collector?
Bag filter (also known as bag dust collector) is a dry dust removal device based on the filtering principle. Its core component is the dust filter bag, which is usually made of textile filter cloth or non-woven felt. It separates dust from flue gas through physical interception, inertial collision, screening and other mechanisms, and the dust removal efficiency can exceed 99%. Due to its high efficiency, it is called "the heart of bag dust collector". In summary, the external structure of the bag filter includes the bottom steel structure, ash hopper, upper shell, casing, air inlet and outlet, dust cleaning device, detection device, electrical control, safety railing, lighting facilities, etc. The bag filter has various shapes, such as cylindrical, cubic, rectangular, etc. The internal structure is mainly composed of the top plate, blowing pipe, filter bag and cage.
The structure of bag filter: key structures and components
1. Filter bag system: core filter unit
The filter bag is cylindrical and installed inside the dust collector in a vertical hanging manner. This hanging method is conducive to the natural sedimentation of dust and reduces the accumulation resistance of dust on the surface of the filter bag. If the temperature of the treated gas is high, such as the waste gas generated in high-temperature production environments such as steel and cement, it is necessary to use high-temperature resistant filter bag materials, such as glass fiber, aramid fiber, etc. If the gas is highly corrosive, such as acidic or alkaline waste gas in chemical production, then filter bags made of polytetrafluoroethylene (PTFE) are more suitable, which can effectively prevent the filter bag from being corroded and damaged.
2. Cleaning device: key to performance guarantee
The cleaning device is mainly composed of pulse valves, air bags and injection pipes. As the actuator of the dust cleaning action, the pulse valve releases the compressed air stored in the air bag into the injection pipe at a very high speed by opening and closing quickly. The air bag is like an energy storage station, providing stable and sufficient compressed air for the pulse valve to ensure sufficient impact force during dust cleaning. The injection pipe accurately sprays the compressed air into the filter bag. The reverse airflow generated instantly can strongly shake off the dust attached to the surface of the filter bag, so that the filter bag can restore good air permeability and maintain the efficient operation of the dust collector. The working frequency and intensity of the dust cleaning device need to be accurately adjusted according to the actual working conditions. Too frequent dust cleaning will accelerate the wear of the filter bag; insufficient dust cleaning will cause the filter bag to be blocked and reduce the dust removal efficiency.
3. Box structure: collaborative working carrier
The box structure is the physical carrier for the coordinated work of the various components of the bag dust collector. It is divided into three parts: upper, middle and lower, of which the lower part contains the ash hopper. The upper box is mainly used to install the clean air outlet and the control elements of some dust cleaning devices. It provides a smooth discharge channel for the purified gas. The middle box is the installation space of the filter bag system, where the dust-laden gas fully contacts the filter bag to achieve gas-solid separation. The ash hopper at the bottom is responsible for collecting the settled dust.
6 Types of replacement spare part of a dust collection system:
1. dust collector filter bag
The cylindrical filter bag is suspended vertically in the dust collector. It is an important part of the main maintenance cost of the bag filter. In pulse jet and vibratory dust collection systems, the average service life of the filter bag is about 1 to 3 years. The service life of the filter bag depends on the type and amount of emissions generated by the facility. In pulse and air box pulse dust collectors, dust is attached to the outer surface of the filter bag. When the dust-laden gas passes through the dust collector, the dust is captured on the outer surface of the filter bag, and the clean gas enters the filter bag through the filter material. The cage inside the filter bag is used to support the filter bag and prevent the filter bag from collapsing. At the same time, it helps to remove and redistribute the dust cake.
1.1 What are the materials of common filter bag?
1.1.1 Fiberglass Filter Bag
Constructed with glass fibers, features high - temperature tolerance, but relatively brittle, commonly applied in high - temp flue gas filtration like in power plants.
1.1.2 P84 Filter Bag
Crafted from P84 fibers, offers excellent heat resistance and good filtration efficiency for fine particles, often used in high - temp industrial applications.
1.1.3 Acrylic Filter Bag
Good at filtering in normal - temperature and slightly humid conditions, cost - effective for general industrial dust collection.
1.1.4 Aramid Nomex Filter Bag
Made of aramid Nomex fibers, known for high - temperature resistance and good mechanical strength, widely used in industries with heat - generating processes.
1.1.5 Polyester Filter Bag
Commonly used, cost - efficient, suitable for normal - temperature dust filtration in various industries due to its good mechanical properties.
1.1.6 PTFE Filter Bag
Made of polytetrafluoroethylene, highly resistant to chemicals and heat, suitable for harsh, corrosive environments.
1.1.7 PPS Filter Bag
Made from polyphenylene sulfide fibers, shows good chemical and heat resistance, especially suitable for applications with sulfur - containing flue gas.
1.1.8 Ceramic Fiber Filter Bag
With high - temperature tolerance up to over 1000℃, chemically stable, but brittle, used for filtering fine dust in high - temp flue gas.
1.1.9 Polyphenylene Sulfide Needle - Punched Felt Filter Bag
Based on PPS fibers, enhanced in strength and filtration precision by needle - punching, effective in capturing fine dust in complex industrial environments.
1.1.10 FMS Filter Bag
Combines glass fiber and fluoropolymer fibers, with high - temperature resistance, chemical corrosion resistance, and water - and oil - repellent properties, suitable for complex flue gas treatment.
1.1.11 Basalt Fiber Filter Bag
Made from natural basalt, has high - temperature resistance, chemical corrosion resistance, and high strength, applied in high - temp and high - dust - concentration scenarios.
1.1.12 PSA Filter Bag
Made of polysulfonamide fibers, has good high - temperature, radiation, and chemical corrosion resistance, applied in special industries with high - performance requirements.
2. Dust collector filter bag cage(skeleton)
The bag cage is an indispensable main accessory of the bag dust collector. It is used as the keel to support the dust bag. It can be divided into six, eight, ten, twelve, sixteen, eighteen, twenty, and twenty-four ribs. It is welded into shape in one time using special equipment. It is characterized by firm welding, smooth and straight appearance, good verticality, easy use, and can be freely disassembled and assembled.
2.1 What are the types of filter cage?
- Raw materials: high-quality low-carbon steel wire, galvanized steel wire, stainless steel wire, etc. are used to ensure the basic performance and durability of the product.
- Specifications: Covering round, oval, flat, envelope, trapezoidal, star, spring, etc., and various special models can also be customized according to customer needs.
- Structure: There are various and reasonable structures such as multi-section, venturi, protective short pipe, bottom-unloading, plug-in, chuck, etc., which are suitable for different application scenarios.
- Surface treatment: galvanizing, plastic spraying, anti-corrosion treatment, surface silicone spraying, etc. are provided. Among them, the surface silicone coating is especially suitable for treating highly corrosive dust.
3. Ceiling plate (flower plate)
The dust collecting plate, also known as the perforated plate or the grate plate, is the core component of the bag filter. It is generally a round or square metal plate made of Q235 carbon steel, stainless steel and other materials, with evenly distributed round holes that match the filter bag specifications for installing the filter bag. The main function of the dust collecting plate is to firmly fix the filter bag, clearly separate the inside of the dust collector into the clean air chamber and the dusty air chamber, and force the dust-containing gas to enter the clean air chamber only through the filter bag to achieve efficient gas-solid separation. The hole spacing depends on factors such as the filter bag diameter, the filter bag length, the dust characteristics and the filtration speed. Reasonable spacing design is crucial to prevent the filter bag from being worn and damaged. Accurate installation and positioning can avoid collision and friction between the filter bags, greatly extend the service life of the filter bags, and ensure the stable and efficient operation of the dust collector. The perforated plate with uniform spacing is suitable for medium-sized pulse jet dust collectors, while the perforated plate with dispersed arrangement is suitable for large and medium-sized pulse jet dust collectors.
4. Pulse-jet solenoid valve
The pulse jet solenoid valve is the compressed air "switch" of the dust collector cleaning spray system. There are three types: right angle type, submersible type and straight-through type. Controlled by the output signal of the pulse jet controller, compressed air is sprayed into the filter bag at high speed in a short time, and the filter bag is sprayed row by row to clean the dust, so that the filter bag expands rapidly and shakes off the dust on the surface, so that the resistance of the dust collector is kept within the set range to ensure the processing capacity and dust removal efficiency of the dust collector.
4.1 Working principle of pulse-jet solenoid valve:
When the pulse valve receives the electric control signal, the electromagnetic pilot head moves, opens the exhaust port of the main valve, and the gas in the upper chamber of the main valve diaphragm is quickly discharged. The pressure in the lower chamber of the diaphragm is higher than that in the upper chamber, thereby pushing the diaphragm upward, opening the compressed air inlet, and the compressed air is sprayed into the filter bag through the pulse valve blowing pipe. When the electric control signal disappears, the electromagnetic pilot head resets, closes the exhaust port, the pressure in the upper chamber of the diaphragm gradually increases, the diaphragm descends to close the compressed air inlet, and the blowing stops.
4.2 Pulse-jet solenoid valve structure:
Generally composed of electromagnetic pilot head, main valve diaphragm, valve seat, spring and other components. The electromagnetic pilot head controls the action of the main valve diaphragm, the spring is used to reset the diaphragm, and the valve seat ensures the sealing of the valve.
4.3 Pulse-jet solenoid valve type:
According to different structures and working principles, dust collector pulse valves can be divided into right-angle type, submerged type, straight-through type and other types. The inlet and outlet of the right-angle pulse valve are at right angles, which is suitable for various installation positions; the air inlet of the submerged pulse valve is directly submerged in the air bag, with small resistance and strong blowing ability; the inlet and outlet of the straight-through pulse valve are in a straight line, with a simple structure and large flow rate.
4.4 What are the famous pulse-jet solenoid valve brand?
4.4.1 ASCO (United States)
It is a brand of Emerson Electric, founded in 1888, and has more than 100 years of production technology experience in the field of fluid control. Its core advantages include high reliability design, with an average failure-free time of more than 1 million times; fast response technology, with a response time of < 10ms for some models; providing full-scenario adaptation solutions such as explosion-proof and high temperature; a complete global service network, with technical centers established in more than 50 countries, supporting 48-hour emergency spare parts delivery. The products are widely used in general industry, energy, medical, food and beverage and other fields, and are also widely used in dust removal systems. For example, products such as the 353 series and 110 series are widely used in the dust removal and environmental protection industries.
4.4.2 Spirax Sarco(United Kingdom)
A leading global supplier of fluid control technology, its electromagnetic pulse valves are known for precision control, high efficiency and energy saving, and its product design focuses on reliability and durability, and can operate stably under high pressure and high temperature conditions. The use of advanced dust and corrosion prevention technology can effectively improve the working efficiency of the dust removal system and reduce the maintenance frequency. It is widely used in petrochemical, metallurgical, electric power and other industries.
4.4.3 VTON:
An international professional valve company. Its electromagnetic pulse valves are widely used in industrial dust removal systems, especially in environments that handle high temperature, highly corrosive or explosive gases. It provides ATEX explosion-proof certified electromagnetic pulse valves, which are suitable for flammable and explosive environments. It uses high temperature and corrosion resistant materials to adapt to continuous operation in harsh environments. It is widely used in coal mines, petrochemicals, electric power and other fields.
4.4.4 JORC
A professional manufacturer of solenoid valves with advanced design solutions and sophisticated processing equipment. The dust removal electromagnetic pulse valves developed by the company with the introduction of technology use imported key components, complete specifications, and stable quality. They have been used by well-known environmental protection companies at home and abroad for many years, and have excellent quality and are well received by customers.
4.4.5 BFEC DAIPEI(Shanghai )
It is well-known in the field of bag dust collectors in China. Its electromagnetic pulse valve is an economical electromagnetic valve, suitable for environments with temperatures of -10 to +55°C and relative humidity not exceeding 85%. The working medium is clean air with a dew point of -20°C. The pressure of the injection air source is 0.3 to 0.6MPa, and there are a variety of specifications to choose from, with different injection air volumes. The product is mainly used in bag dust collectors. The switch of the control valve is closed through the electromagnetic effect, and the filter bag is sprayed with compressed air one by one to keep the resistance of the dust collector within the set range.
4.4.6 AIRTAC:
A brand from Taiwan, China, founded in 1988, is a large enterprise group specializing in the production of various pneumatic equipment. Its products include solenoid valves, pneumatic control components, etc., which are also widely used in mainland China. Its solenoid valve products are of reliable quality and cost-effective. It can provide products and solutions that meet different needs. It is widely used in dust removal projects of some small and medium-sized enterprises with strict cost control.
5. Blow pipes
The dust collector spray pipeline is a seamless pressure-resistant pipeline, which is mainly used to transport compressed air to each filter bag to achieve spray cleaning of the filter bag. It is usually composed of main pipe, branch pipe, spray pipe and other parts. The main pipe is connected to the air source and is responsible for introducing compressed air into the entire injection system; the branch pipe branches out from the main pipe and distributes the compressed air to different areas or filter bag groups; the injection pipe is the part directly connected to the filter bag, with injection holes evenly distributed on it. Compressed air is sprayed into the filter bag at high speed through these injection holes. In order to obtain the best cleaning effect, the number of purge holes should be less than 16, the aperture range is φ8-30mm, and the distance from the filter bag opening should be between 200-300mm.
5.1 How to choose the suitable material?
Generally, corrosion-resistant and wear-resistant metal materials are selected, such as stainless steel or anti-corrosion treated carbon steel. This is because the spray pipeline needs to withstand the pressure of compressed air and the scouring of high-speed airflow during operation, and also resist the erosion of dust and other substances, so it needs to have good strength and corrosion resistance.
5.2 Spray pipeline layout
Parallel layout is suitable for dust collectors with neatly arranged filter bags in rows and columns. The spray pipe corresponds to the filter bag one by one, and the filter bag can be sprayed evenly; the circular layout is suitable for dust collectors with circular or circular filter bags. The spray pipe forms a ring around the filter bag group, so that each filter bag can be effectively sprayed and cleaned.
6. Dust collector air bag
The dust collector steam drum is also called the air box, it provides a stable air source for pulse injection. It is cylindrical and belongs to a pressure vessel. It consists of a cylinder, a head, an air inlet, an air outlet, a safety valve interface, a pressure gauge interface, etc. When working, the compressed air output by the air compressor is stored in it. With its own structure, it buffers the air flow pulsation and ensures the stability of the air pressure. It can also store a certain amount of air to meet the injection demand when the compressor is shut down or the gas consumption peaks. The steam drum evenly distributes the compressed air to each pulse valve through multiple air outlets to achieve consistent injection of the filter bag.
What are the other components of the filter bag dust collector?
- Control system: Mostly based on programmable logic controller (PLC), the dust collector components are controlled according to preset programs. According to dust concentration, pressure difference and other parameters, the cleaning cycle and pulse blowing duration are accurately adjusted, and an alarm is triggered when the threshold is exceeded. If you want to save costs, you can also use a controller to control the blowing.
- Differential pressure gauge: Works based on Pascal's law, and common types include U-tube and diaphragm. It is used to measure the pressure difference between the clean and dirty sides of the filter bag. The initial pressure difference of the new filter bag is 50-150Pa. When it reaches 700-1200Pa, the cleaning is started. It is the key basis for judging the blockage of the filter bag and the operating status of the equipment.
- Ash discharge system: It consists of an ash discharge valve (such as a rigid impeller, double-layer flap type), a screw conveyor (transport capacity 1-50 tons/hour), and a pneumatic ash conveying device. It is responsible for discharging the dust in the dust collector to the designated location. The rigid impeller ash discharge valve can prevent air backflow. Dust collectors in the fertilizer industry often use scraper conveyors for unloading because dust has a certain viscosity.
- Fan: The fan is the source of air volume for the dust collector. Small dust collectors are usually equipped with external centrifugal fans. The model and motor power are selected according to the processing air volume (10000 - 100000m³/h) and system resistance. Large dust collectors need to use independent centrifugal fans and inverters to control the air volume.
Frequently asked question/people also ask
The bag house filter working principle are as follows:
1. Dust-laden gas enters: Dust-laden gas enters from the air inlet of the dust collector, and usually passes through a pre-dust collection device or airflow distribution device first, so that the gas can be evenly distributed to each filter unit to avoid the impact of excessive local airflow on the filter bag.
2. Filtration process: After the gas enters the filter chamber equipped with the filter bag, under the action of the pressure difference, the gas passes through the filter bag, and the dust particles are trapped on the surface of the filter bag. The material and structure of the filter bag determine its filtering effect on dust of different particle sizes. Generally speaking, the filter bag can effectively intercept dust particles of micron level or even smaller. At the beginning of filtration, the dust is mainly captured by the screening, inertial collision, diffusion, electrostatic adsorption and other effects of the filter bag fibers. As the filtration proceeds, a layer of dust will gradually form on the surface of the filter bag. This dust layer plays a major role in the subsequent dust filtration. It can further improve the filtration efficiency and intercept more fine dust.
3. Cleaning process: As dust accumulates on the surface of the filter bag, the resistance of the filter bag will gradually increase. When the resistance reaches a certain level, cleaning is required to restore the filtering performance of the filter bag. Common cleaning methods include pulse jet cleaning, back-blowing cleaning, and mechanical vibration cleaning. For example, pulse jet cleaning is to instantly inject high-pressure gas into the filter bag to cause the filter bag to expand and contract rapidly, thereby shaking off the dust on the surface; back-blowing cleaning is to change the direction of the air flow to make the gas in the filter bag flow in the opposite direction to blow off the dust; mechanical vibration cleaning is to vibrate the filter bag through a mechanical device to make the dust fall off. The cleaned dust will fall into the ash hopper at the bottom of the dust collector and then be discharged through the ash discharge device.
4. Clean gas discharge: The clean gas filtered by the filter bag is discharged through the air outlet of the dust collector and enters the subsequent ventilation system or is directly discharged into the atmosphere.
1. Improve the working environment: A large amount of dust is generated during the fertilizer production process, such as raw material crushing, screening, mixing and granulation. The dust collector can effectively capture the dust, prevent it from spreading in the workshop, reduce the dust concentration in the workshop, reduce the harm of dust to the workers' respiratory system, etc., and create a relatively clean and healthy working environment for workers.
2. Recycling raw materials and products: The dust collector can collect the dust generated during the production process, many of which are underutilized raw materials or finished product particles. By recycling these dusts, resources can be reused, production costs can be reduced, and the economic benefits of fertilizer production can be improved.
3. Protect equipment: If dust enters the moving parts of the production equipment, such as bearings and gears, it will aggravate the wear of the equipment and affect the normal operation and service life of the equipment. The dust collector can reduce the erosion of dust on the equipment, reduce the equipment failure rate, extend the equipment maintenance cycle and service life, and ensure the stable operation of the fertilizer production line.
4. Reduce environmental pollution: If the dust emission of fertilizer production enterprises does not meet the standards, it will cause serious pollution to the surrounding environment and affect the air quality and ecological environment. The dust collector can efficiently remove dust from the exhaust gas to meet environmental emission standards and reduce pollution to the surrounding environment.
1. Cement dust: In the cement industry, a large amount of cement dust is generated in every link from raw material crushing, grinding, calcination to finished product packaging. These dusts are mainly composed of fine particles of raw materials such as cement clinker, limestone, clay, iron ore, etc., and their particle size distribution is wide, ranging from a few microns to tens of microns.
2. Compound fertilizer dust: In the production process of compound fertilizer, compound fertilizer dust is generated in the processes of raw material mixing, granulation, drying, etc. The dust composition is related to the formula of compound fertilizer, and usually contains nutrients such as nitrogen, phosphorus, potassium and particles of some additives, such as urea, ammonium phosphate, potassium chloride, etc.
3. Harmful gases in dusty exhaust gas: In addition to dust, some harmful gases such as sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) are also generated in the production process of cement and compound fertilizer. Although the bag filter is not as effective as special desulfurization and denitrification equipment in removing these gases, it can also remove some harmful gases to a certain extent through adsorption and chemical reactions. For example, alkaline substances in cement dust can react with sulfur dioxide to neutralize, thus playing a certain role in desulfurization.
4. Other impurity particles: In the production of cement and compound fertilizer, there may be some other impurity particles, such as sand and gravel debris, metal impurities, etc. in the raw materials. These impurities will also be discharged with the dust during the production process. The bag filter can intercept them to avoid harm to the environment and equipment.
Generally speaking, the life of the dust collector is about 10 years, and about 5 years under complex working conditions, but there are many parts of the dust collector that can be replaced and updated.
Filter bag: Generally speaking, under normal working conditions, the service life of the filter bag is usually 1-5 years. If the dust is mild, such as large dust particles, low abrasiveness, low humidity, stable operating parameters, and proper maintenance, the filter bag can be used for a long time, which may reach 3-5 years, or even longer. If the dust is highly abrasive, high humidity or contains corrosive components, or abnormal conditions such as overheating and overpressure often occur during operation, the life of the filter bag will be significantly shortened, and it may need to be replaced in 1-2 years, and even in severe cases, it may need to be replaced in a few months.
Bag cage: The life of the bag cage is generally longer than that of the filter bag, and it can usually be used for 5-10 years. If the bag cage is made of high-quality carbon steel or stainless steel, and the surface is well treated with anti-corrosion, it can withstand the weight of the filter bag and the impact force during the cleaning process in a normal working environment, and can be used for a long time. However, if the bag cage is located in an environment with high humidity, or if the dust is cleaned too frequently or the impact force is too large, the bag cage may be deformed and corroded, thus shortening its service life. If the bag cage is deformed, it will affect the normal installation and use of the filter bag, causing the filter bag to wear more severely. At this time, the bag cage needs to be replaced in time.
Pulse valve: The life of a pulse valve is usually around 3-8 years. A pulse valve with good quality and reliable brand can be used for 5-8 years if it operates at a reasonable working pressure and frequency and is regularly maintained, such as timely cleaning of the valve core and replacement of seals. If the pulse valve is frequently operated, the working pressure is unstable, or there are impurities in the medium, it is easy to cause problems such as valve core wear and poor sealing, which will shorten the life of the pulse valve and may need to be replaced in 3-5 years. In addition, faults such as aging of the electromagnetic head and rupture of the diaphragm will also affect the normal use of the pulse valve, which needs to be repaired or replaced in time depending on the situation.
1. Fertilizer industry: In the fertilizer production process, the filtration efficiency of bag filters for dust can usually reach 98% - 99%. This is because the dust particles in fertilizer production are relatively large and have low viscosity, which can be easily intercepted and captured by filter bags. For example, in compound fertilizer production, the dust generated by the granulation and drying processes can be effectively removed by filtering with a suitable bag filter, which can effectively remove most of the dust and reduce the dust concentration in the exhaust gas to a lower level.
Influencing factors: If the raw materials used in fertilizer production contain more fine powder, or the dust generated during the production process has high humidity, it may affect the air permeability of the filter bag, resulting in a slight decrease in filtration efficiency. However, by reasonably selecting the filter bag material, such as using waterproof and oil-proof filter bags, and optimizing the cleaning system, the dust on the surface of the filter bag can be removed in time, and the filtration efficiency can still be maintained at a high level.
2. Cement industry: The filtration efficiency of bag filters in the cement industry can also reach more than 99%. Although the dust concentration is high during cement production, the particle distribution range is wide, with both coarse particles and fine dust. Bag dust collectors can have a good capture effect on dust of different particle sizes through the synergistic effect of primary filtration and dust layer filtration. For example, in the waste gas treatment at the end of the cement kiln, bag dust collectors can intercept a large amount of cement dust, so that the emitted gas meets environmental protection standards.
Influencing factors: Cement dust has a certain abrasiveness, and long-term operation may cause filter bag wear, thereby affecting the filtration efficiency. In addition, if the working conditions in the kiln are unstable, temperature fluctuations or changes in gas composition occur, it may also affect the performance of the filter bag. In order to ensure efficient and stable operation, it is necessary to select filter bag materials with good wear resistance, strengthen the maintenance and monitoring of the equipment, and promptly detect and deal with the wear and damage of the filter bag.
1. Cement plant raw material processing workshop: A large amount of dust will be generated during the raw material crushing, grinding and transportation process of the cement plant. Bag dust collectors are installed in the ventilation system of these links, which can effectively collect dust, prevent dust from spilling, and protect the environment and workers' health.
2. Cement kiln tail: Cement kilns will emit waste gas containing a large amount of dust, sulfur dioxide, nitrogen oxides and other pollutants during the calcination process. As an important part of the kiln tail waste gas treatment system, bag dust collectors can efficiently remove dust from waste gas and provide good conditions for subsequent desulfurization, denitrification and other processes.
3. Cement grinding workshop: High concentrations of dust will be generated during cement grinding. Bag dust collectors can collect these dusts, on the one hand to achieve dust emission standards, and on the other hand to recycle the collected dust into the production system to improve the output and quality of cement.
4. Cement packaging workshop: During the cement packaging process, dust will fly. Bag dust collectors can be installed above or next to the packaging machine to collect dust in time, keep the air in the workshop clean, and reduce the harm of dust to workers.
5, Raw material mixing workshop of compound fertilizer production line: In compound fertilizer production, various raw materials will generate dust during the mixing process. Bag dust collector can be installed above the mixing equipment or in the ventilation system of the workshop to collect dust, prevent dust from spreading into the workshop, and improve the working environment.
6. Granulation workshop: A large amount of dusty exhaust gas will be generated during the granulation process. Bag dust collector can effectively capture dust and particles in the exhaust gas, so that the discharged gas meets environmental protection requirements and reduces material loss.
Drying workshop: The exhaust gas discharged by the dryer contains a large amount of dust and water vapor. Bag dust collector can first remove dust from the exhaust gas, and then further treat or discharge the exhaust gas to avoid dust pollution to the environment.
7. Cooling workshop: A small amount of dust will also be generated during the cooling process of compound fertilizer. Bag dust collector can collect this dust, keep the air in the workshop fresh, and improve the quality of the product.
Other industries
8. Steel industry: A large amount of dust and exhaust gas will be generated in the sintering, ironmaking, steelmaking and other processes of steel mills. Bag dust collectors are widely used in these links to remove dust and harmful gases from exhaust gas and reduce pollution to the environment.
9. Power industry: The boilers of thermal power plants will produce a lot of smoke during the combustion process. Bag dust collectors can be installed in the tail flue of the boiler to efficiently remove smoke and make the emitted smoke meet environmental protection standards.
10. Chemical industry: In chemical production, many processes will produce dust and harmful gases. Bag dust collectors can select suitable filter bag materials and cleaning methods according to different process requirements and dust characteristics, effectively remove dust and harmful gases, and ensure the safety and hygiene of the production environment.
11. Grain processing industry: Grain dust will be generated during the loading, unloading, transportation, and processing of grain. Bag dust collectors can prevent grain dust explosions, while recovering grain dust and reducing grain losses.
In summary:
In summary, regular maintenance and inspection of all these parts are essential to ensure optimal performance and life of the dust collector. From the filter bags, which are the first line of defense against particulate matter, to the precision parts of the cleaning and control systems, every spare part plays a vital role. The dust collector system should be regularly inspected for any signs of wear, tear or damage, and necessary repairs or replacements should be made in a timely manner to avoid any operational interruptions or loss of efficiency. By keeping a sufficient inventory of these spare parts, companies can minimize equipment downtime.
