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Solution to the problem of bag sticking in pulse bag filter of 1 ton EAF

  • Publisher: Yan Wenhua

    Release date: September 2, 2020
  • one Solution to the problem of bag sticking in pulse bag filter of t EAF

    Pulse bag filter In the process of use, maintenance and   Maintenance is an indispensable part. In particular, the box part should pay more attention to the daily maintenance. For the box of bag filter, the internal and external parts should be maintained step by step.

    External maintenance. External maintenance is mainly to check the paint, leakage, bolts and the surrounding sealing. For high temperature, high humidity gas, in order to prevent condensation and ensure that, generally in the outside with rock wool, glass wool, polyphenyl ester and other insulation layer. Secondly, it is necessary to carry out internal maintenance.

    The internal maintenance of the box is mainly to pay attention to the selection of corrosion-resistant coating, and timely apply it to the easily corroded or corroded parts. In general, because the purified gas is mostly acidic, so the selection of epoxy resin acid resistant coating is more.

    The gap part of the box should also be maintained. The gap of the box is generally padded with rubber, rubber pad, asbestos pad, etc., in order to prevent gas leakage

    one Solution to the problem of bag sticking in pulse bag filter of t EAF

    The following is a brief introduction to some common problems in the box body of the pulse bag filter

    one Pulse bag filter The paint of the box fell off, and the leakage of rain occurred, and the bolts and the surrounding sealing were not tight.

    Therefore, for the high temperature and high humidity gas, in order to ensure the dust collector to prevent condensation and ensure the normal operation of the dust collector, the dust collector should be given insulation measures. Rock wool, glass wool, polyphenyl ester and other materials can be used for heat preservation.

    The insulation layer of the dust remover is wet by rain, which is easy to corrode the box. Therefore, the dust remover placed in the open air must have sufficient protection measures when it rains.

    two The corrosion problem inside the box of pulse bag filter

    The interior of bag filter box is easy to condense, adhere to dust and gas dissolved may cause corrosion environment. In the interior of the bag filter, the parts between the steel plates and the angle iron, and the edge of the pattern plate are easy to be corroded. Therefore, when coating the interior of the box, it is necessary to select a corrosion-resistant coating and evenly coat it on the top of the dust collector box. In the treatment of purified gas, most of the purified gas is acidic, so the anticorrosive coating of epoxy resin should be selected.

    three Air leakage in the gap of the box body of pulse bag filter

    Rubber, foot rubber pad and asbestos pad are padded in the slot of dust collector box. When used for a long time or the shelf life has passed, some pads will be aged and deteriorated, damage and fall off, making the dust collector air leakage.

    When it is found that this condition should be repaired or replaced in time to ensure the tightness of the dust collector.

    According to the relative position of dust collector and fan in the process, the dust removal system of bag filter can be divided into negative pressure dust removal system and positive pressure bag filter dust removal system. What's the difference between the two bag filter systems.

    pulse Bag filter In the negative pressure dust removal system, the dust collector is set before the fan ( Negative pressure section or suction section )

    one Solution to the problem of pulse bag filter clogging

    Since the dust collector is set in front of the fan, the gas flowing through the fan has been dedusted, the dust concentration is low, the fan is greatly reduced by abrasion, and the operation life is long. When the dust containing gas with high initial concentration is treated, the negative pressure dust removal system is generally adopted.

    The dust remover and pipeline are located in the negative pressure section of the fan, which is easy to inhale air and cause air leakage. The air leakage rate of negative pressure dust removal system is zero point zero five zero point one The air volume of the fan is increased and the power consumption is increased.

    In the design of negative pressure dust removal system, measures should be taken to reduce the air leakage of dust collector and pipeline as far as possible, so as to ensure the good operation of dust collector.

    Hebei Shouyang environmental protection equipment Co., Ltd. has been committed to the research, development, installation and production of environmental protection dust removal, waste gas deodorization, desulfurization and denitrification engineering equipment for many years Boiler dust collector At the same time, our company produces dust removal accessories, such as bag filter, dust collector, cyclone, wet electrostatic precipitator, electrostatic precipitator and waste gas deodorizer. At the same time, our company produces dust removal accessories such as bag filter, dust collector framework, pulse solenoid valve, pulse controller, unloader, gate valve, conveyor, elevator, etc, It has been highly praised by industry insiders and customers,


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