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Efficient Particulate Removal Technology
Baghouse control system is widely used and effective dust collection devices. They are employed in various fields, including ferrous and non-ferrous metallurgy, chemicals, petroleum, construction materials, textiles, and food production, among others.
They are designed for automated continuous operation. They require minimal maintenance. The baghouse automation control system allows for integration into any technological process.
They are designed for automated continuous operation. They require minimal maintenance. The baghouse automation control system allows for integration into any technological process.
What Do Baghouse Filters Remove?
Baghouse dust control is primarily used to remove particulate matter, such as dust, soot, and other fine particles, from industrial exhaust gases. They are highly effective in capturing airborne particles that can be harmful to both the environment and human health. The types of particles removed by baghouse air filtration typically include:
- Dust: Fine solid particles that are often generated during industrial processes like grinding, crushing, and handling of raw materials.
- Soot and Smoke: Byproducts of combustion processes, such as those in power plants or incinerators, which can contain very fine carbon particles.
- Metal Particulates: Tiny particles of metals that can be released during metalworking processes like welding, cutting, or smelting.
- Fibers: From industries that work with materials like textiles, paper, or insulation, where fine fibers are generated.
- Chemical Fumes: Particulate matter that forms from the condensation of vapors, especially in chemical manufacturing.
- Biological Contaminants: Spores, bacteria, or other biological particles, especially in industries like food processing or pharmaceuticals.
BLIZZARD NEW
An air baghouse is widely used across various industries, including cement production, pharmaceuticals, metalworking, power generation, and food processing, due to their efficiency in capturing a broad range of particulate pollutants.
An air filtering baghouse consists of units in which bags are suspended inside the housing. Filtration is carried out by passing the contaminated stream through the fabric of the pouch. Depending on the design of the unit, the gas can move either from the inside of the chamber outward or from the outside inward. Once a layer of contaminants accumulates on the filtering surface, reaching the maximum allowable hydraulic resistance, it undergoes regeneration.
An air filtering baghouse consists of units in which bags are suspended inside the housing. Filtration is carried out by passing the contaminated stream through the fabric of the pouch. Depending on the design of the unit, the gas can move either from the inside of the chamber outward or from the outside inward. Once a layer of contaminants accumulates on the filtering surface, reaching the maximum allowable hydraulic resistance, it undergoes regeneration.
Design
Structurally, the dust control baghouse is a tower (usually made of steel) with a rectangular, square, or circular cross-section, housing the key components — a working chamber with filter bags, a regeneration system (either a pulse-jet or shaking mechanism), service elements, and inlet and outlet ducts. The hopper is usually located outside the main body but can be integrated within the overall unit design in some cases.
Additionally, the unit can be equipped with optional discharge equipment for the hopper, such as a manual gate, rotary airlock, or screw conveyor.
At the customer’s request, modifications can be made to the height of the unit, the orientation of the air inlet and outlet ducts, and the placement of the service door.
The units can also be equipped with a final filtration stage, reducing the residual contaminants concentration to as low as 0.06 µg/ft³.
Additionally, the unit can be equipped with optional discharge equipment for the hopper, such as a manual gate, rotary airlock, or screw conveyor.
At the customer’s request, modifications can be made to the height of the unit, the orientation of the air inlet and outlet ducts, and the placement of the service door.
The units can also be equipped with a final filtration stage, reducing the residual contaminants concentration to as low as 0.06 µg/ft³.
Scheme
Modular Configuration
Our baghouse control systems are manufactured with a modular design, allowing for adjustments in both height and length. Each module functions as an independent, operational section. Multiple sections can be assembled into a single unit, with several modules arranged in a row.
The housing features a quick-assembly design with bolted connections, requiring no special tools or advanced skills for installation.
For easy transportation, the system is delivered in separate blocks sized for transport. It can be divided into sections, allowing for independent maintenance and ensuring continuous operation of the unit.
Experience unmatched efficiency with our air treatment baghouse, designed to provide superior filtration and ensure a cleaner, healthier environment for your industrial operations.
The housing features a quick-assembly design with bolted connections, requiring no special tools or advanced skills for installation.
For easy transportation, the system is delivered in separate blocks sized for transport. It can be divided into sections, allowing for independent maintenance and ensuring continuous operation of the unit.
Experience unmatched efficiency with our air treatment baghouse, designed to provide superior filtration and ensure a cleaner, healthier environment for your industrial operations.
Operating Principle
The operating principle includes two main stages:
- Dust-laden gas is drawn into the filtration channel.
- Baghouse fines settle on the fabric of the bags, while the clean stream is expelled through the exhaust pipe.
- The dust-laden airflow is forced into the unit’s working chamber. If there is no coarse primary dust separation stage, the chamber may be equipped with a baffle plate to deflect larger particles.
- The gas flow enters the so-called 'dirty chamber,' where the cloths are located.
- Contaminants settle on the surface of the bags, while gas molecules that are small enough pass freely through the micropores into the clean chamber, from which they are emitted into the external environment or returned to the plant’s working atmosphere.
- As particulate matter accumulates on the external surface of the bags, it forms a thicker layer, increasing the filter’s resistance and obstructing the flow through the textile. This triggers the regeneration process, where the material is cleaned.
- The debris is shaken off the bags into the hopper, from where it is discharged either manually or automatically.
Blizzard Bag Filter
Classification by Regeneration Method
As the unit operates, dust gradually accumulates in the pores of the material and on its surface. As the layer of contaminants grows, the hydraulic resistance of the apparatus increases. If it is not removed periodically, the filter will eventually become clogged, preventing the fan from drawing in gas. Its efficiency will decrease, and eventually, the flow of gas through it will stop altogether.
Mechanical Shaking
This is the primary method of filter media regeneration. It involves shaking the air baghouse bags either in a vertical or horizontal direction. The advantages of this method include stable removal of dust deposits. However, the main disadvantages are the complexity of the shaking mechanism, which requires constant attention from maintenance personnel, wear and tear of the bags in the same areas, sensitivity of the system to shrinkage and stretching of the bags, and the need to shut down the device during regeneration.
Reverse Air Cleaning
This effective method regenerates the filter media by reverse blowing with cleaned gas or pressurized air. It is typically combined with other methods, such as mechanical shaking, twisting, vibration, or swaying of the pouches. These systems are quite effective and convenient to operate and maintain. However, their performance is somewhat reduced due to air intake during the regeneration period. Reverse air cleaning in a baghouse typically involves gentle deformation of the media, which is less damaging to the fibers compared to mechanical shaking.
Pulse-Jet Cleaning
One of the most effective methods for regenerating filter media, widely used in framework-type constructions, is pulse-jet cleaning. These units are distinguished by the absence of shaking mechanisms, throttles, and blow-off fans in their design. A jet of compressed air, released from a nozzle in the distribution pipe, draws in cleaned gas and directs it into the bag. The pouch inflates under the influence of excess pressure, causing the dust layer to break up and fall into the hopper.
We guarantee durability by using solenoid valves that generate a compressed air pulse for regeneration, designed for 1 million cycles. When developing the equipment, we took into account that it is important to reduce pressure drops and compressed air consumption with high gas flow rates.
Honeycomb Structure — The Best Solution for Compact Equipment
High performance with small filter dimensions is achieved through the "honeycomb" arrangement of bags. If the initial dust concentration in the air is 0.0037 oz/ft³, it can be reduced to a residual level of 0.6 µg/ft³.
The filter element of the honeycomb type consists of cells arranged in a staggered pattern. These cells are formed either through stitching or thermal welding. The stitched element is stretched over a frame. The cells for clean and dust-laden gases are connected only through the material. In terms of compactness, the honeycomb structure significantly surpasses all existing methods of filter material arrangement.
The filter element of the honeycomb type consists of cells arranged in a staggered pattern. These cells are formed either through stitching or thermal welding. The stitched element is stretched over a frame. The cells for clean and dust-laden gases are connected only through the material. In terms of compactness, the honeycomb structure significantly surpasses all existing methods of filter material arrangement.
Benefits
What are the advantages of baghouse air ventilation?
- Firstly, they offer higher efficiency, meaning a greater degree of filtration.
- Secondly, they can operate effectively at any gas pressure, with any concentration of suspended particles, and at high temperatures.
- Thirdly, chemically resistant materials are used in their construction.
- Finally, the process can be fully automated.
- If you need assistance with selection or consultation, please contact us, and we will be happy to help!
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Your feedback is appreciated!
We always make extremely precise calculations and provide assistance in choosing the optimal cleaning systems, which usually takes 1 to 2 days.
Head of Engineering,
Vladimir Nikulin
Vladimir Nikulin
CALCULATION AND SELECTION
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