Sleeve filter with impulse cleaning. Bag filters with impulse purge for central aspiration systems (FRI). Important Factors in Bag Filter Operation

Bag filters with pulse purge"FREE" are designed to clean the air from any fine dry non-coalescing dust. Can be used in industries with a continuous cycle such as: production building materials, mineral fertilizers, woodworking and foundry industries, etc. Regeneration system - pulse blowing with compressed air. When installed outdoors, it is required to dry the compressed air to a dew point of -40 C. Bag filters are designed for a pressure (vacuum) of the housing of 7000 Pa at a temperature of the cleaned air from -40 to +80C. By request, filters can be manufactured for the temperature of the cleaned air up to 130C.

Basic equipment

filter section,
purge section,
receiver with reducer and filter-moisture separator,
control cabinet,
temperature sensors,
collector with nozzles for connection to the fire extinguishing system,
emergency level sensor.

Are made in various complete sets:

for installation on the storage hopper - complete set 1.
with unloading of the captured dust into a special trolley - complete set 2.
with a device for continuous unloading of dust (sluice reloader), which allows connecting pneumatic transport, a scraper or screw conveyor, a soft container, etc. - complete set 3.

It is possible to connect several independent fans to one filter. Upon request, the filters are completed with an additional (control) cleaning stage, which allows to ensure a residual dust concentration of not more than 0.1 mg/m3. Installation of fans is possible in 2 versions: installation of a high-pressure fan VDP-56S for filter discharge, and installation of a dust fan for discharge.
By separate order, complete with filters are supplied:

dust fan;
storage hopper, incl. with sliding shutter and level sensors;
overpass under the filter and the bunker with platforms of service;
fire safety valve;
Check Valve.

Specifications

Model	FRI-6	FRI-9	FRI-12	FRI-16	FRI-20	FRI-32
Air capacity, m3/h	6000	9000	12000	16000	20000	32000
Hydraulic resistance, Pa	500	500	500	500	500	500
Service life of filter bags, months	24	24	24	24	24	24
Dust cleaning efficiency, not less than, % (d 5 µm)	99,7	99,7	99,7	99,7	99,7	99,7
Max dust concentration at the filter inlet, g/m3	50	50	50	50	50	50
Compressed air consumption l/min	100	130	160	190	240	400
Compressed air pressure, bar	6	6	6	6	6	6

Technological equipment plant "FORMULA" is a certified manufacturer of bag and cartridge filters of various designs, as well as cyclones and other aspiration elements.

The bag filter with pulsed bag regeneration is designed to purify air with temperatures up to +260 C° and initial dust content up to 200 g/m³. It belongs to the group of highly efficient dry-type dust collectors. The dust content at the outlet after the filtration process is no more than 10 mg / m3, and the air purity after cleaning is more than 99%.
The regeneration or cleaning of the sleeves occurs due to the impulse action of compressed air created by a special membrane impulse valve and directed inside the sleeve. Due to this, dust particles are knocked out of the pores of the filter material.
We currently manufacture the following types of filters

Sleeve filter of monoblock or sectional design with pulsed regeneration of sleeves RF-I	Sleeve filter with pulsed regeneration of sleeves of increased altitude, sectional version RFV-I	Bag filter with pulsed blowdown and cyclone inlet
Productivity from 1000 m3/h, height up to 6 m	Capacity from 10,000 m3/h, height from 6.4 m	Productivity from 500 m3/hour

- Plant Technological equipment"FORMULA" mass-produces industrial filters for aspiration and is a certified manufacturer (manufacturer) with 2005, i.e. over 14 years!
- We can order dust filters with minimum term manufacturing.
- Free shipping to a transport company in the south of St. Petersburg.
- High quality bent-welded construction from steel 09G2S 3 mm thick, and connecting flanges from steel 09G2S 5 mm thick, which reduce abrasive wear and corrosion. If necessary, the thickness can be increased.
- Designed drawings and assembly technology.
- 50% prepayment, additional payment after production
Advantages
- Universality of application - suitable including for explosive environments;
- Better (compared to mechanical) regeneration of the filter material, because there is not only a surface cleaning of the sleeves, but b cleaning the pores with a pulse of compressed air.
Flaws bag filters with pulsed purge:
- Requires the presence of dry compressed air (usually solved by installing a compressor of the required capacity near the filter and oil-moisture separator)
- High cost of equipment - we use highly reliable imported SMC impulse valves.

Bag filter found wide application in food enterprises, tobacco factories, enterprises of metallurgical, petrochemical, mining, cement, flour-grinding, chemical and woodworking industries, ferroalloy plants, in the production of glass, plastic, carbon black.
The air purification filter is installed in aspiration systems, dust collectors and other air purification systems to create a clean atmosphere in rooms for various purposes. Designs and classifications bag filters varied, but most often division bag filters occurs according to the shape of the filter bags and according to the method of regeneration of the filter material.

Bag filter consists of a rectangular or round body, a hopper, filter bags(diameter from 100 to 300 mm), which are suspended inside the housing, special valves and regeneration control devices.
Polluted air passes through the fabric filter bags in the direction from the sleeve outward or vice versa inward.
regeneration filter bags carried out after the limiting accumulation of a certain amount of dust on the filter surface of the bag.
The bag filter is universal in that its configuration and dimensions can be different, taking into account the size of the workplace under the bag filter. Depending on the conditions of the working environment, the service life of the bag filter ranges from six months to several years.
Filter bags are the main element of the bag filter, most of all worn out and requiring replacement.
The material for the filter bag is selected depending on the operating conditions of the bag filter. In the manufacture of filter bags, fabrics from natural fibers (cotton, wool), fabrics from synthetic fibers, and glass fabrics are used. The following materials are most widely used: oxalon, nitron, dacron, terylene, lavsan, sulfone, arselon, polyimide, orlon. The last four of these materials have high heat resistance at a temperature of 250-300 degrees.
For filter fabrics, the most typical twill method of weaving fibers. Non-woven materials are also used - felts made by felting wool and synthetic fibers.
The purpose of the filter bag: trapping various types of industrial suspensions (cement, gypsum, carbon black, flour, etc.), air purification from dust and process gases.

Bag filters with impulse purge are designed to purify air from dry fine non-coalescing dust in central systems ah aspiration. They can be used in industries with a continuous cycle, such as: the production of building materials, mineral fertilizers, woodworking and foundry industries, etc.

Regeneration system - pulse purge with compressed air. For outdoor installation, compressed air must be dried to a dew point of -40ºС. The filters are designed for housing pressure (vacuum) up to 5,000 Pa at the temperature of the cleaned air from -40ºС to 80ºС. On request, FRI bag filters can be manufactured for the temperature of the cleaned air up to 130ºС.

The basic package of FRI bag filters includes:

filter section
control cabinet
collector with nozzles for connection to the fire extinguishing system
receiver with reducer and filter-moisture separator
temperature sensors
level sensors.

Bag filters FRI are supplied in several configurations:

Package 1-Designed for installation on a storage hopper.
Package 2- has its own base. The collected dust is collected in a roll-out trolley.
Package 3- has its own base. With a continuous unloading device (sluice reloader). A soft container, pneumatic transport, auger, etc. can be attached to the sluice loader.
Package 4- has its own base. With a mini silo with a capacity of up to 15 m³. The mini silo has a mixing device and a sluice loader. This allows periodic unloading of dust without stopping the aspiration system.

Additionally, by separate order, complete with filters are supplied:

high pressure fans
service platforms
storage bins with sliding gates
overpasses for the filter and the bunker
check valves
fire safety valves.

As an additional purification stage, a control stage of non-regenerating filters can be installed.

The filter housing has a welded or prefabricated structure. A noise-absorbing section can be installed in the upper part of the filter to accommodate the fan. The noise level will be no more than 70 dBa.

Specifications for Pulsed Bag Filters

Model	FRI-6	FRI-9	FRI-12	FRI-16	FRI-20	FRI-32	FRI-35SB	FRI-42SB	FRI-50SB
Maximum air capacity, m3/h	6000	9000	12000	16000	20000	32000	35000	42000	50000
Hydraulic resistance, Pa	500	500	500	500	500	500	500	500	500
Maximum dust concentration at the inlet, g/m 3	50	50	50	50	50	50	50	50	50
Compressed air consumption, max Nl/min	90	130	160	190	240	400	400	550	700
Compressed air pressure, bar	6	6	6	6	6	6	6	6	6
The volume of the dust collection trolley for a set. 2, m³	1.0	1.0	1.7	1.7	1.7	1.7	-	-	-

Overall and connecting dimensions, mm

Model	axb	B	L	L1	H1	H2	H3	h1	h2	h 3
FRI-6	300x300	1280	1720	2160	-	-	-	3990	5350	6960
FRI-9	350x400	1430	1930	2400	-	-	-	3990	5470	7100
FRI-12	450x450	1700	2300	-	4580	6730	7910	3930	6080	7380
FRI-16	500x500	1970	2620	-	4550	6880	8190	3930	6260	7560
FRI-20	500x600	2260	2920	-	4580	7250	8480	3950	6620	8480
FRI-32	600x800	2260	3020	-	5850	8530	9750	5220	7890	9750

Overall and connecting dimensions 2, mm

Model	F1	F2	F3	E1	E2	E3	h	mxn
FRI-6	2840	4200	5810	3230	4590	6200	1570	450x450
FRI-9	2890	4370	6010	3230	4710	6350	1570	500x500
FRI-12	2930	5080	6310	3230	5380	6610	1570	600x600
FRI-16	2960	5290	6600	3230	5580	6870	1570	700x700
FRI-20	3030	5700	6920	3230	5900	7130	1570	750x750
FRI-32	4400	7070	8300	4500	7170	8400	1570	1000x1000

Bag filters with impulse purge and dust settling chamber UVP-ST-S-FRI (hereinafter referred to as Units) are designed for dry air purification from dust and aerosols.
The UVP-ST-S-FRI units belong to the middle class and can be used both as a low-cost aspiration system for small workshops, and for air purification from fine dust generated during the operation of grinding equipment, repacking of building materials, plasma cutting, shot blasting, shotblasting and sandblasting equipment. The small dimensions of the units allow them to be placed directly in the production room.
The UVP-ST-S-FRI units are a prefabricated metal structure consisting of a dust settling chamber (7), a filter block (6), made in a single housing.
Dust from the dust settling chamber enters the soft accumulator. Instead of a storage tank, a pneumatic conveying system can be connected to the Dust Extraction Unit.

Versions

Climatic performance:

"H" - external, heat-insulated version. For temperate or cold regions
"B" - not heat-insulated version. For regions with warm climates or where warm air return is not required

Basic equipment

1. Filter unit and dust settling chamber, made in a single housing on supports.
2. Regeneration system consisting of receivers with solenoid valves and a regeneration system control unit based on TURBO components, Italy.
3. Installation control system.

Specifications

	Filtration area, m²	Consumed Power, no more than, kW	Compressed air pressure, MPa	*Compressed air consumption, Nl/min	**Installation weight, no more than, kg
UVP-ST-S-2-FRI-12	88	0,2	0,6	653	3000
UVP-ST-S-2-FRI-14	106	0,2		785	3200
UVP-ST-S-4-FRI-23	176	0,2		1307	5700
UVP-ST-S-4-FRI-28	212	0,2		1570	5900

*) Compressed air consumption for a regeneration cycle of one minute
**) Unit weight without waste

Fig.2 UVP-ST-S-2-FRI

Fig.3 UVP-ST-S-4-FRI

1 - Inlet
2 - Connection G-2 water supply
3 - Outlet

Overall and connecting dimensions

Installation symbol	Dimensions, mm
Installation symbol	H	A	B	G	D	E	AND	AND
UVP-ST-S-2-FRI-12	6800	2440	5700	3200	3530	4480	2100	1000
UVP-ST-S-2-FRI-14	7320	2530	6250	3200	6920	7410	2100	1000
UVP-ST-S-4-FRI-23	6800	2440	5700	3200	10300	10790	2100	1000
UVP-ST-S-4-FRI-28	7320	2530	6250	3200	10300	10790	2100	1000

Efficient bag filters for aspiration are a universal type of equipment designed to purify the air space from dust, gas and other impurities. They can work well in almost any technological processes where dust and dirt are released. Such devices can operate almost continuously, do not need constant maintenance.

Bag filters for aspiration belong to the so-called "dry" type of dust-collecting devices. When compared with any category of electrical filters and equipment for wet gas cleaning, these filters have a higher efficiency. The final dust content at the final stage after the operation of these devices is no more than 10 milligrams per cubic meter. (There are also filters with even lower residual dust content - up to 1 milligram per cubic meter). In addition to bag filters, there are actually cleaning bags made of filter materials, they can be used at temperatures up to +260 degrees Celsius.

Problems solved by air aspiration

The required sanitary conditions are provided so that working employees can be inside the premises without harm to their health.

Are being created optimal conditions for carrying out all required technological processes.

Remains of dust, toxic and combustible compounds, explosive impurities that can be released at various production stages are eliminated from the air masses.

Aspiration air systems and self-cleaning filters are high-tech designs of ventilation equipment. They are designed to absorb air where chemical volatile gases, dust, smoke and so on are formed. These systems make it possible to remove from the air space small particles of foreign origin, wood dust and shavings, abrasive dust and avoid the spread of dust throughout the room.

Bag filters with impulse blowing

The impulse bag filter is designed to purify air masses from various fine dust accumulations. These devices have a built-in system for regeneration of pulsed blowing with compressed air masses. Sleeves on metal supports act as a cleaning element. They can be used in production processes with a constant cycle, in particular:

production of building materials;

wood processing;

creation of mineral fertilizers;

foundry industry.

Everywhere it is useful for capturing fine dust.

Filters can be supplied with a fan and an air duct, a dust collection trolley and a sluice reloader, which makes it possible to carry out continuous dust accumulations caught.

The impulse bag filter has the following principle of operation: the device captures dust with a filter cloth when dusty air passes through it. As long as the density of the dust layer on the surface of the sleeves increases, the transmission capacity of the device decreases. For this, the regeneration of contaminated sleeves by pulsed air blowing was invented.

As for the management of filter regeneration, the cleaning process takes place automatically from the control panel. In order to optimize compressed air consumption, differential pressure cleaning and continuous regeneration at regular intervals are suggested.

Bag air filters

Bag filters are designed for industrial dust extraction and meet all modern characteristics and requirements: temperature regime, chemical environment, dust characteristic, service life, cleaning efficiency, etc.

Filter materials for bag filters: polyester (polyester), polypropylene, polyacrylonitrile, meta-aramid (Nomex type), polyimide, glass fabrics, etc.

Various regeneration methods: mechanical shaking, mechanical shaking combined with pulse blowing low pressure, low pressure pulse, pulse regeneration.

Production according to the individual request of the Customer.

Bag air filters for air purification from dust

To clean the dust-gas-air compositions, you should use a bag filter. This is a "dry" type dust collector, which has a high degree of reliability and excellent processing quality. None of the equipment, whether it is wet cleaning or electrostatic precipitators, can compare with a bag filter, because it is equipped with filtering devices, they can be used when high temperature because they are made of polyamide and polytetrafluoroethylene.

The bag filter is a versatile piece of equipment because, in fact, it can be used in different technological processes. However, it will be equally effective. You do not have to constantly monitor its work, because it functions continuously.

If you need a bag filter of a certain size and with certain design features, which fit exactly under your operating conditions, then you can order such a device, because such devices can be made according to individual wishes. You, most importantly, need to be sure to indicate which dust-forming composition has to be mainly cleaned. Manufacturers, starting from this, will select you right material for the manufacture of bag filters.

Where is a bag filter usually used:

1. In the manufacture of building materials. 2. In the field of non-ferrous and ferrous metallurgy. 3. During the foundry process. 4. In the automotive process. 5. In the energy and mining, furniture, glass and chemical industries. 6. In food production. 7. When processing metal.

Important Factors in Bag Filter Operation

In the process of choosing this filter, you need to consider several key points, which include items such as:

temperature dew point data with degree of moisture; pressure and temperature data; · quality of gases, their explosiveness and volumes of the environment which should be cleared; dust density and its type; How does this stage take place? The toxicity of dust composition substances.

In order to calculate a bag filter, it is first necessary to determine the amount of purge gas with dusty compositions that fall on the material, and then take into account the speed at which the filtration process occurs with a cloth, and it was chosen for the manufacture of a bag filter. How to operate a bag filter?

The bag filter can be used:

1. On fresh air, in an open place. In this case, the filter will require additional components:

· the body part must be thermally insulated; bunker heating elements; update systems; a cover that will prevent the filter from being exposed to the atmosphere

2. Indoors.

There are several types of bag filters:

· Two-core with branch pipes for dirty and filtered gas, located in the middle part of the device.

Single-core with the same nozzles, but they are located on the side of the device. Bag filters for dust air filter are delivered to the customer by truck in a partially disassembled type, although this depends on the complexity of the design. Welding of its constituent elements is already taking place on site. Some parts are attached to each other with bolts.