Principle of filter cartridge dust collector? Filter cartridge dust collector and bag type

Cartridge type dust collector is a dust removal equipment commonly used in industry. It can help some industries to carry out dust removal better. But what is the principle of cartridge type dust collector? Filter cartridge dust collector and bag filter are currently in the The special dust collectors used in the industry have the same final effect and purpose. What is the difference between the filter cartridge dust collector and the bag filter?

(1) Principle of filter cartridge dust collector

The filter cartridge dust collector is composed of a filter cartridge as a filter element or a pulse sprayed dust collector. The filter cartridge dust collector can be divided into hoisting type, oblique insertion type, side mounting type and top loading type according to the installation method. According to the filter cartridge material, the filter cartridge dust collector can be divided into long fiber polyester filter cartridge dust collector, composite fiber filter cartridge dust collector, antistatic filter cartridge dust collector, membrane filter cartridge dust collector, and flame retardant filter cartridge dust collector. Nano filter cartridge dust collector, etc.

(B) the difference between filter cartridge dust collector and bag filter

First, the filter cartridge or filter bag

1. Filter cartridge dust collector: The hard filter material is folded and arranged to form a cylinder without a skeleton, and the spacing between the cylinders is large.

2. Bag type dust collector: The soft filter material is sewn into a filter bag, which is placed on the skeleton welded by steel bars. The filter bag is vertically covered and the bag is relatively long.

Second, the filter material type

1. Filter cartridge dust collector: all kinds of composite filter materials, good gas permeability, ultra-fine powder and fiber dust are not easy to penetrate.

2, bag type dust collector: mostly single-layer ordinary industrial polyester cloth, filter material is rough, poor gas permeability, easy to stick dust, ultra-fine powder, fiber dust are easy to pass.

Third, the principle of filtration

1. Filter cartridge dust collector: Most of them are surface filtration principles, and the dust does not penetrate into the filter material.

2, bag filter: deep filtration principle, dust into the filter material, relying on the outer surface of the filter material to establish a dust layer to maintain dust removal efficiency

Fourth, dust removal efficiency

1. Filter cartridge dust collector: The dust removal efficiency is as high as 99.7%-99.9%. It is stable in operation and can reduce the emission concentration, which is conducive to the control of total emissions. High-concentration engineering conditions are more suitable for use.

2, bag filter: dust removal efficiency is not as efficient as the filter cartridge type, 99% -99.5%, is not good for controlling emission concentration and total emissions, not suitable for high concentration conditions.

Five, dust collector resistance

1. Filter cartridge dust collector: low resistance, suitable for general dust, maximum resistance below 1000pa.

2, bag filter: resistance, for general dust, maximum resistance 1000pa-1500pa, sometimes higher.

Sixth, backflushing system

1. Filter cartridge dust collector: The compressed air has a large blow back force, and the effect is good and uniform.

2. Bag type dust collector: The fan has a small blow back force, because the filter bag is long and the backflush is uneven, and the effect is poor. When the filter wind speed of the general dust exceeds 1.0m/min, the dust cannot blow down, the compressed air is blown back, and the power is large. However, the filter bag is too long and the backflush is uneven.

7. Dimensions, weight, installation and combination

1. Filter cartridge dust collector: small size, light weight, and the main fan unit, the upper part of the dust collector has no working surface, the installation is convenient, and the occupied space is relatively small.

2, bag type dust collector: large size, for unit equipment, the main fan is a spare part, need to occupy a relatively large space, the above need to leave 3m high bagging space

Eight, equipment maintenance, management and service life

1. Filter cartridge dust collector: There is no moving parts on the device body. The filter cartridge has no mechanical wear during the continuous exchange movement of work and backflushing. It can be used for a long time. The filter cartridge does not need any tools, and it is convenient to disassemble and assemble.

2, bag type dust collector: the top has anti-drying machine, rotary arm and other mechanical moving parts, long-term operation, easy to damage, filter material and skeleton in the work and back-blowing when sucking a drum, continuous friction, damage filter material is serious, change The filter bag is cumbersome, costly and laborious, and causes secondary pollution.

The principle of filter cartridge type dust collector is as above. Generally, the filter cartridge dust collector is generally used to see its main advantages and needs to be used in actual work. After seeing the difference between the filter cartridge dust collector and the bag filter, I also had an answer when I bought the dust collector, knowing which one I bought.