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中文 (中国)(1) Bag of choice: Select the filter bag should wear high-temperature materials, there are fiberglass fabric , NOMEX needle felt, P84 needle felt, etc., taking into account the bag abrasion resistance, durability and high temperature costs and other factors, the copper industry is generally used NOMEX needle felt.
(2) Temperature control: general NOMEX bag when subjected to a temperature of 200 ℃, so treatment facilities inlet temperature should be controlled below 200 ℃, the flue gas reaches the filter housing through a long tube after the smoke, the temperature can be reduced the following 200 ℃, special circumstances, can be cooled with water coolers installed in the smoke pipe of the total.
(3) Selection of the fan: better than the induced draft fan blower effect.
(4) Mechanical removal than manual removal convenient, clean, but the high cost of mechanical dust, dust is now mostly using a pulse method.
(5) Air Leakage and Resistance: calculated theoretically bag filter dust removal efficiency of 99%, but measured in reach, mainly affect leakage resistance and lower leakage rate, the better the effect of dust; there is a certain resistance to the effect of dust influence, often to empty the bag, reduce drag, improve the effect of dust.
(6) Should be as close to the stove dust cover, making it easier to enter the dust cover, increase the amount of dust and reduce fugitive emissions.
(7) Equipment maintenance: equipment and bags should be easy to repair and replace damaged bags.
(8) Gas flow rate: at 1 ~ 3 m / s air velocity, dust the best results, the general speed control in 2 ~ 4 m / s.
(9) Filter Size: filter area, the higher collection efficiency, but the cost will be increased accordingly. It should be calculated in advance the amount of wind, and then select the appropriate filter type.
(10) Secondary dust: dust box before settling chamber is equipped with, formation of secondary dust. Removing a portion of the settling chamber can be large particles of dust, reducing the temperature, pressure reducing dust.
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