Classification of dust removal filter element, classification of dust collector

1. Dust removal filter element, dust removal filter cartridge, dust removal filter bag, dust filter element, sterilization, odor removal filter element and dust ** filter element for industrial gas and environmental protection equipment.

2. Localization of industrial oil, fluid power equipment, hydraulics, lubrication systems, high-precision oil filter elements, pipeline filter elements, imported filter elements, and non-standard filter elements.

3. The filter elements used in the pipeline system are as follows:

a. Natural gas pipeline filter element B. Gas pipeline filter element.

c. Biogas pipeline filter element d. Gas pipeline filter element.

e. Pipeline oil filter element f. Pipeline water filter element.

g. Oil filter element, dust removal filter element, gas purification filter element of various pipeline systems.

4. Compressor inlet air dust removal filter element, oil filter element, and oil and gas separation filter element.

5. Dust removal filter element and dust filter element series are used in:

a. Energy, cement, chemical, machinery, glass and other production lines of raw materials, purification and dust removal.

b. Pharmaceutical, cigarette, coating, production line ** raw materials, purification and dust removal.

c. Dust removal and purification filter element of dust ** device in wood, polishing, shot blasting, crushing and powder preparation industries.

e. Special filter element for dust collection box of engineering drilling rig.

6. The oil filter element is suitable for:

a. Pressure pipeline filter element b. Oil filter machine (car) filter element.

c. Air compressor oil filter element d. Large machine tool oil filter element.

7. Air purification filter element:

a. Plate-and-frame filter element, coarse-efficiency, medium-efficiency, high-efficiency filter.

b. Filter paper filter element: filtration accuracy from 10um 150umc, glass fiber filter element: accuracy from.

d. All kinds of polyester fiber filter element, metal fiber filter element, glass fiber filter element.

Hello dust collector main pointsDry dust collectorwithWet dust collectorsTwo categories. There is a more detailed division between these two categories. According to the principle of action, dust collectors can be divided into the following types.

First: Dry mechanical dust collectorIt mainly refers to the dust removal equipment designed by the application of dust inertia and gravity, such as high-concentration dust collectors such as settling chambers, inert dust collectors, cyclone dust collectors, etc., which are mainly used for the separation or concentration of high-concentration coarse particle size dust.

Second: wet dust collectorsDust removal devices that rely on hydrophilic moisture to separate and capture dust particles, such as spray towers, scrubbers, impact dust collectors, venturi tubes, etc., are often used in dust-containing gas occasions with high concentration and large air volume in the treatment and production process. The separation efficiency of coarse, hydrophilic dust is higher than that of dry mechanical dust collectors.

Third: particle layer dust collectorThis is a device that uses a layered layer of granular material with different particle sizes as a filter material to block and filter the dust contained in the air dissolution. It is mainly used in the dust removal point in the production process of building materials and metallurgy, and is often used to filter dusty flue gas with high concentration, coarse particles and high temperature.

Fourth: bag filterThe filter is a dust removal device with fiber weaving or filling layer as the filter medium, and its use, form, dust removal air volume scale and action efficiency have a wide range in all aspects, mainly used in the place of collecting fine dust, that is, it is applied in the exhaust dust removal system and the air intake system. In recent years, due to the continuous development of new filter media, the development of fiber filtration technology has also accelerated, new products continue to appear, and the application field has been increasingly expanded.

Fifth: electrostatic precipitator This dust collectorIt is to introduce the dust-containing gas flow into the electrostatic field, under the action of the high-voltage electric field, the gas ionizes, produces electrons and positive ions, they move to the positive and negative poles respectively, when the dust particles flow through the working electric field, they are negatively charged, and move to the sedimentation plate opposite to the sign of the negative charge at a certain speed, and settle down there, so as to break away from the air flow and be collected in the electrostatic precipitator. This kind of dust collector has high dust removal efficiency, low resistance, and easy maintenance and management.

It is similar to baghouse in capturing fine dust particles.

In recent years, with the rapid development of the economy, metallurgical steelmaking electric furnaces and boilers fueled by raw coal have increased a lot, and the air pollutants emitted by these furnaces have caused great harm to the surrounding environment, so the technology of removing particulate matter from dusty gases to reduce their emissions to the atmosphere has become more and more important. So how to choose the dust removal filter material used in the dust collector? What are the types of filter media commonly used in dust collectors?

How to choose dust removal filter material.

As the core of the bag filter, the filter material and filter bag have been developed for more than half a century. In the past, there were two main categories of filter materials for cement industry bag dust removal filters, room temperature type and high temperature type. Generally, the exhaust gas of the mill, material rotation, crushing and ventilation equipment are all made of room temperature type (120) material, which is industrial polyester (polyester long and short fiber).

The cement dryer, cement rotary kiln, grate cooler and other power equipment are made of high-temperature fiberglass (120 t 250).

By the early eighties, with the understanding of flue gas dust performance in practical applications, this simple * temperature method to distinguish filter media was no longer suitable. In the cement industry, the types of flue gas contain moisture, acid, sulfine, and dust, and in the flue gas of the vertical kiln, the flue gas of the dryer and the waste gas of raw meal grinding, the characteristics of cohesiveness, ultra-fineness, and grinding pecking can not be ignored. The following 3 points should be paid attention to when selecting filter media:

Chemical fibers are better than glass fiber filter bags, expanded glass fibers are better than general glass fibers, and fine, short and crimped fibers are better than coarse, long and smooth fibers.

It is advisable to use acupuncture to strengthen the interconnectedness between fibers in the felt material, and the satin fabric is the best, and the brushing of the fabric surface is also a measure to improve the wear resistance, but the felt, satin fabric and fleece filter material will increase the resistance value.

For the surface coating, calendering and other post-treatment of ordinary filter media, the wear resistance can also be improved. For glass fiber filter media, silicone oil, graphite, PTFE resin treatment, wear resistance, folding resistance. However, when the coated filter media is used in abrasive conditions, the membrane will wear out prematurely and lose the coating effect.

The type of filter media commonly used in dust collectors.

1. Polyamide fiber rock fiber.

Advantages: good abrasion resistance, alkali resistance, temperature resistance, can be used for a long time below 200.

Disadvantages: average wear resistance, ** high.

2. PTFE fiber.

Advantages: good wear resistance, acid and alkali resistance, corrosion resistance, temperature resistance, can be used for a long time below 200, high mechanical strength, can work at a high filtration wind speed, high dust removal efficiency.

Cons: Expensive.

3. Glass fiber expanded yarn filter cloth.

Advantages: high temperature resistance, corrosion resistance, smooth surface, not easy to condensate, no shrinkage. The dust can be coarse and coarse, the imitation force is good, the dust removal efficiency is high, and it is suitable for use in the bag dust removal equipment of the reverse blowing and ash cleaning method.