What is the effect of pre-coating on the filter bag

The pre-coated filter bag is before it is used. After the pre-coating process is completed, the filter bag can remove three kinds of dusty gases, solid, liquid and gas, especially when the dust particles with strong viscidity are clear, the effect is good and obvious. After pre-coating the filter bag, it can maintain that the filter bag is not pasted or corroded when it contains a lot of soot pollution and other corrosive gases or particulates, and prolong the service time of the filter bag. It can be said that the pre-coated filter bag has many advantages. Under what conditions should the filter bag be pre-coated?

1. For the purification of sulfide, baghouse will encounter some sulfur incineration conditions. Gaseous sulfur dioxide will be generated after sulfur incineration. If you want to desulfurize, you can only spray cooked lime powder and reaction assistant to the gas rich in sulfur dioxide. Then sulfur dioxide and lime powder will react chemically to form solid with the assistance of reaction assistant. The state of calcium sulfate can then be trapped together with the dust particles by the filter bag to achieve the purpose of desulfurization.

2. For the purification of fluoride, the aluminum electrolysis process will emit a lot of fluorine-containing gases. Alumina powder of aluminum electrolysis plant is used as filter aids to absorb the solid fluoride-rich in gaseous fluoride from the electrolyzer and then filtered with dust-removing cloth bag. When alumina is used as the adsorbent, the solid adsorbent amount per unit volume of flue gas should be increased. The flue gas and alumina mix intensely in turbulence. Hydrogen fluoride in flue gas and alumina in flue gas react externally to form aluminum fluoride exterior compound. This reaction proceeds very quickly. It'll be over in a second. Aluminum fluoride loaded alumina separated from the reverberated flue gas by filter bag can be directly used for electrolysis production and can replace some fluoride salts.

The above two conditions are the most need for pre-coated baghouse. If the baghouse meets these two conditions, the pre-coated link must not be omitted to avoid the equipment failing to achieve the dust removal effect.

Sinobaghouse environmental protection supporting a production of the filter bag, to provide customers with customized service of the filter bag, to meet the needs of customers under different working conditions, fully recognized by the majority of users. Sinobaghouse chooses high-quality large chemical fibers, which are made by the latest international technology. Each square meter of filter material is heat-set at a high temperature, which ensures the size stability of the filter material to the maximum extent. Sino can sinter, calendar, coat, impregnate, coat, waterproof and oil-proof filter material according to different working conditions. According to customer's requirements for dust removal equipment, the filter bag of the dust collector is made exclusively to ensure that the filter bag is closely connected with the flooring and to avoid dust leakage from the hole of the flooring.