Principle of Cartridge Dust Collector

2021-12-16 13:38:53
Pulse filter cartridge dust collector is more and more widely used in production and life now, so will the pulse filter cartridge dust collector affect the processing air volume?
1. As the temperature of the dust source changes, the processing air volume of the pulse filter cartridge dust collector also changes. However, the large value of the air volume of the dust collector should not be calculated based on the misoperation of the dust source and the occasional failure.
2. Once the processing air volume is determined, the required filtering area can be determined according to the determined filtering air speed. The device that separates dust from the flue gas is called a dust collector or dust removal equipment. The performance of the dust collector is expressed by the amount of gas that can be processed, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency. At the same time, the price of the dust collector, operation and maintenance costs, the length of the service life and the difficulty of operation and management are also important factors to consider its performance. Dust collectors are commonly used facilities in boilers and industrial production. The stand-alone dust collector is specially designed for the top and bottom of the cement plant warehouse. It is designed for belt conveying and local dust removal. It can also be used for local dust removal in other industries. It has the advantages of small volume, large air volume, compact structure, convenient and reliable use, etc. The filter wind speed varies greatly due to the form of the bag filter, the type of filter material and the production operation process.
3. The air volume unit is expressed in m3/min and m3/h, but attention should be paid to the place where the dust collector is used and the flue gas temperature. High-temperature gas contains a lot of moisture, so the air volume is not expressed in terms of dry air but in terms of moist air volume, where moisture is expressed in volume fraction.

4, Because the performance of the bag filter depends on the actual filtering wind speed of the wet air, so if the processing temperature of the bag filter has been determined, and the gas is cooled by the dilution method, then the bag filter at this temperature The amount of diluted air must be added to the processing air volume. When calculating the required filter area of the bag filter, the filter speed is the actual filter wind speed.
5. In order to adapt to the change of dust source, when the bag filter design needs to add some spare air volume above the normal air volume, the bag filter is designed according to the high air volume. Pulse dust collector is an improved pulse dust collector on the basis of the bag filter, which combines the advantages of various pulse jet dust collectors with sub-chamber back-blowing, overcomes the disadvantages of insufficient sub-chamber cleaning strength, uneven distribution of inlet and outlet air, etc., and expands the application Scope. It has the advantages of high purification efficiency, large gas processing capacity, stable performance, long filter bag life, convenient operation, and small maintenance workload. Bag filter is a dry dust filter device. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by the filtering effect of the fiber fabric. When the dust-containing gas enters the bag filter, the dust with large particles and high specific gravity will be affected by gravity. The effect settles down and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is blocked, so that the gas is purified. If the bag filter is operated under the specified processing air volume and filtering speed conditions, its pressure loss will increase significantly, the dust bag will be blocked, the dust removal efficiency will also be reduced, and even become the cause of the sharp increase in the frequency of other failures. However, if the standby air volume is too large, the investment cost and operating cost of the bag filter will increase.