High Efficiency Dust Removal Equipment Bag Cleaner For Chemical Plant

Product Description

High Efficiency Dust Removal Equipment Bag Cleaner For Chemical Plant

characteristics of bag filter:

Bag cleaner is a kind of dry dedusting equipment.It is suitable for collecting fine, dry and non-fibrous dust.Filter bag used textile filter cloth or non textile mat is made, using the fabric filter effect of dust filters, gas when the dust into the dust collector, gas particles, dust, such as that of due to gravity settling down, fall into the hopper, contains the fine dust of gas through the filter material, the dust were blocked, the purified gas.General new filter dust removal efficiency is not high enough.Filter material to use after a period of time, due to the screen, collision, stranding, diffusion, electrostatic effect, such as a layer of dust accumulation on the surface of filter bag, at the beginning of the dust layer is called layer, after the movement process, early become the main filter to filter material layer, depending on the role of the first layer, large mesh filter material can also get higher filtration efficiency.With the accumulation of dust on the surface of the filter material, the efficiency and resistance of the bag filter increase correspondingly. When the pressure difference between the two sides of the filter material is large, some small dust particles attached to the filter material will be squeezed in the past, so that the efficiency of the bag filter will decline.In addition, the high resistance of the bag filter will make the air volume of the dust collection system significantly decreased.Therefore, the bag filter resistance reached a certain value, the timely removal of ash.Do not destroy the primary layer when cleaning, so as not to reduce the efficiency.

Structure of bag filter:

It mainly consists of upper box, middle box, lower box (ash bucket), ash removal system and exhaust mechanism.

In addition to choosing the bag material correctly, the cleaning system plays a decisive role in the performance of the bag filter.Therefore, the method of dedusting is one of the characteristics of bag filter and also an important part in the operation of bag filter.

The method of bag filter dust removal:

1, gas cleaning: gas cleaning is by means of high pressure gas or external atmosphere back blowing filter bag, in order to remove the accumulated dust on the filter bag.Gas ash removal includes pulse jet ash removal, anti - blowing dust removal and anti - suction dust removal.

2. Mechanical vibrating to remove dust: it can be divided into top vibrating to remove dust and middle vibrating to remove dust (both for filter bags). It is to periodically vibrate each row of filter bags with the help of mechanical vibrating device to remove the accumulated dust on the filter bags.

3. Manual beating: it is to beat each filter bag manually to remove the accumulated dust on the filter bag.

Structure of cloth bag filter:

1. According to the shape of filter bag, it can be divided into flat bag (trapezoid and flat bag) and round bag (cylindrical bag).

2. According to the way of inlet and outlet wind, it can be divided into: downward inlet wind, upward outlet wind and upward upward outlet wind and direct flow (only limited to plate-like flat bag).

3. According to the filtration mode of the bag, it can be divided into external filter type and internal filter type.Filter material with fiber, there are cotton fiber, wool fiber, synthetic fiber and glass fiber, different fibers woven into the filter material has different properties.Commonly used filter materials are 208 or 901 polyester terry cloth, the use temperature is generally not more than 120℃, after the silicon chamber resin treatment of glass fiber filter bags, the use temperature is generally not more than 250℃, cotton and wool fabric is generally suitable for non-corrosive;The temperature is below 80-90℃.

Characteristics of cloth bag filter:

1. High dust removal efficiency, able to capture fine dust with particle size greater than 0.3 micron, dust removal efficiency can reach more than 99%.

2, flexible use, treatment air volume can be from hundreds of cubic meters per hour to hundreds of thousands of cubic meters per hour, directly can be used as a unit, also can be used as a large dust room, namely "bag room".

3. Bag precipitator has simple structure, stable operation, less initial investment (compared with electric precipitator) and convenient maintenance.Therefore, bag filter is widely used to eliminate dust pollution, improve the environment, and recover materials.

4. The key filter material of the bag precipitator has a service life of more than 2 years and a practical performance of 4-6 years.

5. In dry and semi-dry desulfurization systems, SO2 in flue gas can be further reduced.