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Four elements of dust removal equipment selection
As environmental protection departments have become more and more stringent in the supervision of pollution produced by enterprises, the classification of dust removal equipment manufacturers has become more and more. At present, there are various types of dust collectors in the market. Many companies do not know how to choose the dust removal products that are suitable for them. Today we will talk about the four major factors in the selection of dust removal equipment .
1: Adhesive elements of dust
The relationship between dust and wall adhesion and the specific surface area and moisture content of dust is very large. The smaller the diameter of the dust particles, the larger the specific surface area, the higher the water content, and the greater the adhesion.
In the general cyclone dust, the dust adheres to the wall due to the centrifugal force, which is prone to clogging, and the dust adhered to the bag dust removal equipment will block the opening of the filter bag, which makes it easier for the electrostatic precipitator And dust collecting poles.
：粉尘电阻对选型的影响 2 : Impact of dust resistance on selection
10-101g 之中。 The dust ratio of the electrostatic precipitator is generally between 10-101g . 100-200 ℃之中比电阻比最高，一般假如粉尘气体中加硫调质则比电阻低。 The dust has a greater change in temperature and humidity than the dusty gas in the resistor. For the same dust, the specific resistance ratio is the highest at 100-200 ℃. Generally, if sulfur is added to the dust gas for quenching and tempering, Low specific resistance. Therefore, when we choose the electric dedusting equipment, we must know the specific resistance of the dust in advance, and then rethink the choice of the temperature of the dust gas and the adjustment of the properties of the dust gas.
：气体温度对除尘设备选型的影响 3 : Effect of gas temperature on the selection of dust removal equipment
Dry type dust removal equipment must be operated at the temperature above the dew point of the dust gas. In the wet type dust collector, due to the evaporation of water and the coldness after being discharged into the air, etc., it should be treated at a low temperature as much as possible. In the filter precipitator, the temperature for directly or indirectly processing the dust-containing gas should be lowered below the heat resistance temperature of the filter cloth. 260 ℃以下，其他滤布则在 80 ～ 200 ℃之问。 The use temperature of glass fiber filter cloth is generally below 260 ℃, while other filter cloths are between 80 and 200 ℃. 400 ℃，要考虑粉尘的比电阻和除尘器结构热膨胀来选择处理含尘气体的温度 In the electrostatic precipitator, the use temperature can reach 400 ℃. The specific resistance of the dust and the thermal expansion of the structure of the dust collector must be considered to select the temperature for processing the dust-containing gas.
：选择湿式除尘器的注意事项 4 : Precautions for selecting wet dust collector
是用水来处理粉尘的。 Wet dust collectors use water to treat dust. If the type of dust removal equipment is relatively small, and it is necessary to remove harmful gases and odorous gases, or to collect very fine dust such as very fine carbon black, lead dust, etc., wet dust collectors will be used at this time. When choosing a wet dust collector, we must consider the effective treatment of sewage treatment to prevent secondary pollution.
There is a suitable range for the pressure loss, dust concentration of the air inlet, and the particle size of the dust.