Treatment Of Special Dust By Commerical Electrostatic Precipitator
Treatment of special dust by Commerical Electrostatic Precipitator
Commerical Electrostatic Precipitator to deal with special dust will be more difficult to increase, the need to take appropriate measures, usually the following three methods.
1, high dust concentration gas treatment dust concentration of high gas, you can install cyclone Commerical Electrostatic Precipitator or gravity dust removal equipment as a pre-dust, but this should increase the system resistance, power consumption increased. So when the dust or finished products without grading the case, most of the direct use of Commerical Electrostatic Precipitator.
Not all Commerical Electrostatic Precipitators can handle gases with high dust concentration. Only the filter bag spacing is wide, the bag outside the form of a filter with a continuous cleaning device Commerical Electrostatic Precipitator, is suitable for dealing with high dust concentration of gas.
When dealing with high dust content, Commerical Electrostatic Precipitator the structure should be as far as possible so that the dust directly into the hopper or add some baffle to reduce the amount of dust attached to the filter bag; to prevent the friction of the filter cloth, should not make high-speed movement of dust Direct impact filter cloth.
2, Commerical Electrostatic Precipitator containing tar fog dust gas treatment only contains tar mist gas is difficult, but the gas mist is not large and contains a lot of dust when the Pi can filter. For example, in the asphalt concrete plant, mainly to the stone dryer flue gas, plus the transport and other exhaust dust into the equipment, in addition. In the mixing machine and unloaded into the material. Commerical Electrostatic Precipitator The tar fog from the heated asphalt concrete also enters the equipment. In this case, the amount of dust accumulated on the filter cloth is far more than the amount of oil, you can prevent the trouble of oil mist bonding, to ensure a stable operation.
3, Commerical Electrostatic Precipitator moisture absorption deodorant dust moisture and deliquescence dust such as CaO, Na2CO3, NaHCO3, NaCI and other easy in the filter cloth surface wetting compaction, or deliquescence become viscous liquid, as well as cause cleaning difficulties, increased pressure loss, and even forced to stop running. In this case, the general precautions for handling hygroscopicity, Commerical Electrostatic Precipitator deliquescence dust are listed below.
① should not be regardless of whether the dust source facilities are running continuously, should be started when the dust source facilities start. Commerical Electrostatic Precipitator When the dust on the filter cloth layer, should not be allowed to pass through the wet air. Many dryers and sintering kilns are mostly high temperature, high humidity gas, when the stop running, the temperature drop and humidity, easy to moisture. To this end, should be installed in the dust removal equipment, small hot air generating device. In this way, Commerical Electrostatic Precipitator when the dust source device is stopped, the inside temperature of the hot air can be fed into the original state. Using pre-coating method, that is, in the treatment of dust concentration lower local dust collection situation, the first filter cloth can be coated with other powder layer, that is, only to the pipeline to supply other powder, the operation for some time, The filter cloth attached to a layer of the dust after the capture of the need to collect the wet dust.
In the production of electrodes and molded carbon products and the like, Commerical Electrostatic Precipitator the step of mixing the powder into the hot binder also produces a tar mist. At this point, if the treatment of crushing and transportation of dust-based, only part of the tar fog can be used. However, Commerical Electrostatic Precipitator if the capped tar furnace on the coke tank flue gas containing more oil should be in the flue gas before adding the appropriate amount of coke powder to absorb the fog can get satisfactory results.
If the gas contains only a small amount of oil mist, Commerical Electrostatic Precipitator can be handled separately. That is, in the pipeline to add the amount of powder as a filter, it can be used. Add the dust to absorb the tar mist, should be returned to the manufacturing process as much as possible to be used.
②, the use of the surface is not fluffy, Commerical Electrostatic Precipitator not the fabric of the cloth. Such as the use of felt filter. It should be surface treatment. The selection principle is:
A, surface coating, calendering and other post-processing can also improve wear resistance, for glass fiber filter, silicone oil, graphite, PTFE resin can improve the wear resistance, folding resistance.
B, chemical fiber is better than glass fiber, puffed glass is better than the general glass; fine, short, curly fiber is better than coarse, long, smooth fiber.
C, felt better than the fabric, Commerical Electrostatic Precipitator felt in the appropriate way to strengthen the fiber between the fiber weaving, the fabric to satin fabric is the best, the fabric surface is also to improve the wear resistance of the measures.