Enclosed Multi Sleeve Dust Extractors Bag House Style. Dry filtration systems exploit the operating principle of physical separation which can occur by means of a filter fabric. Options such as cartridges, sleeves, pockets or centrifugal force cyclone separator.
The classification of dust by type, particle size and concentration allows identifying the best available technology (BAT) and sizing the filtration system.
The principle on which the bag filter is based is as follows. The gasses saturated with dust enter the filter. There they then encounter a series of cylindrical bags, also called bags. The transport of the gasses is ensured by a fan. This fan is generally at the end of the system to prevent the particulate from creating disturbance to the fan itself. Therefore keeping the system in depression mode, finally guaranteeing the necessary depression at the fume intake point or inside the combustion chamber.
As mentioned, bag filters must be designed and manufactured according to specifications linked to the sector of use. Therefore companies that produce wood, plastic, food, medicines, aggregates, waste disposal, mechanical processing and more. But they must also be suitable for the revamping of structures that need expansion .
Depending on the field of application, bag filters can be equipped with special optional accessories. These facilitate their use and make air filtering activities more efficient and convenient for the intended user.
The advantage of bag filters is that they can be built in modules. As such this is in order to facilitate their transport, assembly and maintenance.
Dena, leader in the field of air purification , designs and manufactures GIMS sleeve filters. Equipped with automatic compressed air cleaning , specifically for the filtration and relative separation of medium, fine and impalpable dust. The automatic cleaning system allows you to keep the pressure drops almost constant and therefore the suction constant.
The dusty air is introduced into the upper part of the filter stilling chamber through the mouth connected to the panel. The coarser dust contained in the sucked air undergoes an initial reduction and falls into the collection hopper due to the notable reduction in speed. Passing the calming chamber, the dust passes through the filter bags passing from the outside to the inside, thus depositing the impurities in the collection hopper.
During work, the filter is always kept in perfect efficiency through a cyclical counter-current cleaning system.
A jet of compressed air, accumulated in a special tank, is quickly injected inside the sleeves, creating a violent counter current shaking wave capable of detaching and precipitating the particles deposited on the outside of the sleeves. The auger of the bag filter will move the dust near the rotary valve, which in turn will discharge the dust cyclically.
Made entirely of very thick galvanized sheet metal , suitably worked and treated, to favour its durability over time, the air purification filter is equipped with a pneumatic sleeve cleaning system and cyclic programmer for sleeve washing . Furthermore, it is complete with support legs, inspection doors, explosion-proof door and dust collection hopper.
ATEX compliance. Various dust exhaust systems also compliant with ATEX standards (20). 304/316 stainless steel. Paint resistant to hostile environments. Made with special steels.
Handling, storage, transport, mixing, weighing, powdery solid materials, smoothing, sandblasting, grinding, sanding, edging operations. Combustion operations of solid material and waste. Oxyfuel cutting, plasma cutting and laser cutting operations. Surface mechanical cleaning operations as well as welding operations.
The DEDUST-ATEX model bag filter , ideal for heavy duty, is an autonomous dust filtration system, equipped with automatic compressed air cleaning, specifically for the filtration and relative separation of medium, fine and impalpable dust. The automatic compressed air jet cleaning system allows the pressure drops to be kept almost constant. The filter is protected with a venting system designed and installed based on the characteristics of the dust and the place in which the machine is installed. This type of filter allows, in combination with special compartmentation systems, to avoid the explosion of the filter and pipes.
In the DEDUST bag filter the dusty air enters directly into the dust collection hopper, thanks to the combined effect of the reduction of air speed and flow distribution, a part of the dust precipitates directly into the hopper, the remaining part is deposited on the external wall of the filter elements.
The very permeable material of the filter bags allows gas to pass through, but not dust, which gives the filter its main filter layer ( cake ). It is essential to carry out correct removal of the “cake” to guarantee optimal filtration efficiency and low pressure drops; this balance is achieved through the DENA PULS-JET system. A jet of compressed air, accumulated in a special tank, is injected cyclically inside the sleeves, creating a violent counter current shaking wave capable of detaching and precipitating the particles deposited on the external wall of the sleeves.
Construction details
The bag filter is made of painted carbon steel sheet and is complete with support legs, inspection doors and dust collection hopper.
EXPLOSION-PROOF PANELS ON RAISED SECTION AS REGULATORY
COMPONENTS SUITABLE FOR THE ATEX AREA
3-4 MM PAINTED SHEET METAL CONSTRUCTION.
AIR INLET INTO THE HOPPER
SLEEVE EXTRACTIONS FROM TOP OR FRONT
QUICK RELEASE DUST COLLECTION CONTAINER
AUTOMATIC CLEANING WITH COMPRESSED AIR JETS
FILTER CLEANING ECONOMISER
Design pressures starting from 4250 Pa (higher levels available)
Dust extraction screw or other systems depending on the type of dust
Operating temperatures suitable for most applications
Cleaning valves specially selected for the environment and application
A WIDE RANGE OF CONTROLS AND INSTRUMENTS
STAINLESS STEEL 304-316 OR SPECIAL STEEL
DIFFERENT FILTER MEDIA
The DEDUST T model bag filter , ideal for heavy duty, is an autonomous dust filtration system, equipped with automatic compressed air cleaning, specifically for the filtration and relative separation of medium, fine and impalpable dust. The automatic compressed air jet cleaning system allows the pressure drops to be kept almost constant.
In the DEDUST bag filter the dusty air enters the calming chamber, thanks to the combined effect of the reduction of air speed and flow distribution, a part of the dust precipitates directly into the hopper, the remaining part is deposited on the external wall of the filter elements.
The very permeable material of the filter bags allows gas to pass through, but not dust, which gives the filter its main filter layer ( cake ). It is essential to carry out correct removal of the “cake” to guarantee optimal filtration efficiency and low pressure drops; this balance is achieved through the DENA PULS-JET system. A jet of compressed air, accumulated in a special tank, is injected cyclically inside the sleeves, creating a violent counter current shaking wave capable of detaching and precipitating the particles deposited on the external wall of the sleeves.
The bag filter is made of painted carbon steel sheet and is complete with support legs, inspection doors and dust collection hopper.
3-4 MM PAINTED SHEET METAL CONSTRUCTION.
AIR INLET INTO THE CALM CHAMBER
SLEEVE EXTRACTIONS FROM TOP OR FRONT • QUICK RELEASE DUST COLLECTION CONTAINER • AUTOMATIC CLEANING WITH COMPRESSED AIR JETS • FILTER CLEANING ECONOMISER
Design pressures starting from 4250 Pa (higher levels available)
Dust extraction screw or other systems depending on the type of dust
Operating temperatures suitable for most applications
Cleaning valves specially selected for the environment and application
A WIDE RANGE OF CONTROLS AND INSTRUMENTS
STAINLESS STEEL 304-316 OR SPECIAL STEEL
DIFFERENT FILTER MEDIA
The GIC-M/FICO sleeve filter was created specifically for thermal power plants and for all those places with height problems, in fact it is compact, equipped with a practical hatch for maintenance and extraction of sleeves, the inside of the filter is equipped with a walkable grating.
The dusty air is introduced into the upper part of the stilling chamber through the appropriate inlet on the panel. The coarser dust contained in the sucked air undergoes an initial reduction and falls into the collection hopper due to the notable reduction in speed. After passing the calming chamber, the fluid passes through the filter bags passing from the outside to the inside, thus depositing the impurities in the collection hopper. During work, the dust collector is always kept in perfect efficiency through a cyclical counter-current cleaning system. A jet of compressed air, accumulated in a special tank, is quickly injected inside the sleeves, creating a violent counter current shaking wave capable of detaching and precipitating the particles deposited on the outside of the sleeves. The dust will be collected in the quick release container.
Equipped with a by-pass integrated in the body for quick assembly on site, made of very thick sheet metal, appropriately worked and treated, to favour its durability over time; it is equipped with a pneumatic sleeve cleaning system controlled by an economizer with differential pressure switch. It is also complete with support legs, inspection doors, parapets and ladder, explosion-proof door, dust collection hopper.
The DEDUST C model bag filter , ideal for heavy duty, is an autonomous dust filtration system, equipped with automatic compressed air cleaning, specifically for the filtration and relative separation of medium, fine and impalpable dust. The automatic compressed air jet cleaning system allows the pressure drops to be kept almost constant.
In the DEDUST bag filter the dusty air enters directly into the dust collection hopper, thanks to the combined effect of the reduction of air speed and flow distribution, a part of the dust precipitates directly into the hopper, the remaining part is deposited on the external wall of the filter elements.
The very permeable material of the filter bags allows gas to pass through, but not dust, which gives the filter its main filter layer ( cake ). It is essential to carry out correct removal of the “cake” to guarantee optimal filtration efficiency and low pressure drops; this balance is achieved through the DENA PULS-JET system. A jet of compressed air, accumulated in a special tank, is injected cyclically inside the sleeves, creating a violent countercurrent shaking wave capable of detaching and precipitating the particles deposited on the external wall of the sleeves.
The bag filter is made of painted carbon steel sheet and is complete with support legs, inspection doors and dust collection hopper.
Standard equipment
The DEDUST C ATEX model bag filter is an autonomous dust filtration system, equipped with automatic cleaning with compressed air, specifically for the filtration and relative separation of medium, fine and impalpable dust. The automatic cleaning system using compressed air jets allows the pressure drops to be kept almost constant. The filter is protected with a venting system designed and installed based on the characteristics of the dust and the place in which the machine is installed. This type of filter allows, in combination with special compartmentation systems, to avoid the explosion of the filter and pipes.
In the DEDUST C ATEX bag filter the dusty air enters directly into the dust collection hopper, thanks to the combined effect of the reduction of air speed and flow distribution, a part of the dust precipitates directly into the hopper, the remaining part deposits on the external wall of the filter elements.
The very permeable material of the filter bags allows gas to pass through, but not dust, which gives the filter its main filter layer ( cake ). It is essential to carry out correct removal of the “cake” to guarantee optimal filtration efficiency and low pressure drops; this balance is achieved through the DENA PULS-JET system. A jet of compressed air, accumulated in a special tank, is injected cyclically inside the sleeves, creating a violent counter current shaking wave capable of detaching and precipitating the particles deposited on the external wall of the sleeves.
The bag filter is made of very thick galvanized sheet metal and is complete with support legs, inspection doors and dust collection hopper.
EXPLOSION-PROOF PANELS ON RAISED SECTION AS REGULATORY
COMPONENTS SUITABLE FOR THE ATEX AREA
CONSTRUCTION IN 3MM GALVANIZED SHEET METAL, HOPPER IN 2MM GALVANIZED SHEET METAL.
AIR INLET INTO THE HOPPER
SLEEVE EXTRACTIONS FROM THE BOTTOM
PAINTED DUST COLLECTION CONTAINER WITH QUICK RELEASE
AUTOMATIC CLEANING WITH COMPRESSED AIR JETS
FILTER CLEANING ECONOMISER
DUST DISCHARGE SYSTEM WITH STAR VALVE OR AUGER
STAINLESS STEEL 304-316 OR SPECIAL STEEL
DIFFERENT FILTER MEDIA

















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