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The bag dust collector is mainly composed of four major systems, namely the dust cleaning system, the control system, the inspection system, and the safety protection system (including boiler ignition and oiling, pre-coating system when the oil is added for low-load operation and stable combustion, and filter protection system). bag; when the smoke temperature exceeds the set value, the emergency water spray system is started to reduce the smoke temperature and protect the filter bag. The ash cleaning system is the digestive organ of the bag dust collector, and the operating effect of the bag dust collector depends to a large extent. In the dust cleaning mechanism and its control system.

1) Bag filter consists of several cotton or wool bags suspended ina sheet metal casing.

2) A shaking device is placed at the top of the vessel.

3) A hopper present at the bottom of the filter receives the feed.

4) An exhaust outlet is present at the top of the metal container.

5) Adjacentaly, a bell crank lever is present for maintainingnormal atmospheric conditions for the filters.

6) A vacuum fan is also installed in this apparatus.

Bag dust collector is a filter-type dust removal equipment based on the filtration principle. It uses agricultural  production system   fiber   or inorganic fiber filter cloth to filter out the dust in the gas. Dust removal process: Dust-containing gas enters the middle box from the air inlet and enters the bag from outside the filter bag. The dust is blocked on the surface outside the filter bag. The purified air enters the bag   and then enters the upper box from the upper part of the bag. Expelled from the exhaust pipe. The large pulse long bag dust collector draws on advanced domestic and foreign technologies. 

A bag filter also known as a bag house filter or fabricfilter is  an air pollution control device and dust collectorthat removes particulates or gas  released fromcommercial processes out of the air. 

Power plants,  steel mills, pharmaceutical  producers,  foodmanufacturers,  chemical producers and other industrialcompanies often use baghouse to control emission of airpollutants.   

Bag Filter Dust Collector

1) Simple to operate.

2)Reduced sensitivity to particle size distribution.

3) No high voltage requirement.

4) Flammable dust may be collected.

5) Very high collection efficiencies possible

Filtering period: During this period the gascontaining dust enters through the hopper. Then it ispassed inside the bags and at the top of the apparatus.The vacuum fan produces a pressure below theatmospheric pressure inside the apparatus. As a result,the particles get trapped within the bags.

Shaking period: During this period, the bell cranklever rotates and changes the position of damper. Theoutside air enters through the top in the metal casing andtherefore the vacuum is broken. At the same time, itcauses violent shaking or jerking action to the bags. Dustor fine particles are displaced from the bags. Themaximum portion of dust falls into the hopper which iswithdrawn further from the conical base.

1) Bag filters are also commonly referred to as fabric dustcollectors that are used in large industrial units to separatedust particles from dusty gases.2) Bag filters are the most efficient and cost effective type ofindustrial dust collectors.

3) Bag filters are considered the most efficient among all dustcollectors 'cause they can reach an efficiency level of upto 99%.

4) Bag filters are also used along with a cyclone separator.

5) They are used to clean the air of a room.

Advantages

Structural diagram