Pulse bag dust collector for automobile disassembly: design, maintenance and modification

With the continuous growth of car ownership, the automobile dismantling industry has also ushered in rapid development. However, a large amount of dust is generated during the dismantling process, which seriously pollutes the environment and endangers the health of workers. As a high-efficiency dust removal equipment, pulse bag dust collectors have been widely used in the automobile dismantling industry. This article will discuss the design, maintenance and modification of pulse bag dust collectors for automobile dismantling.

1. Key points of pulse bag dust collector design for automobile dismantling

The dust generated during automobile dismantling has the characteristics of small particle size, high viscosity, flammable and explosive, so the following points should be considered when designing a pulse bag dust collector:

Filtration wind speed: The particle size of automobile dismantling dust is small, so a lower filtration wind speed should be selected, generally controlled at 0.8-1.2m/min, to ensure dust removal efficiency.

Filter material selection: Automobile dismantling dust has high viscosity, so filter materials with smooth surface and easy to clean should be selected, such as coated polyester needle felt, PTFE coated filter material, etc.

Cleansing method: Pulse jet cleaning method has good cleaning effect and is suitable for automobile dismantling dust. The appropriate spray pressure, spray cycle and spray time should be selected according to the dust properties and dust collector specifications.

Explosion-proof design: Automobile dismantling dust is flammable and explosive, and explosion-proof measures should be taken, such as setting explosion vents, using explosion-proof motors and electrical components, etc.

Structural design: The environment of the automobile dismantling workshop is complex, and factors such as the dust collector's structural strength, corrosion resistance and ease of maintenance need to be considered.

2. Common faults and repairs of automobile dismantling pulse bag dust collector

Automobile dismantling pulse bag dust collector may have some faults during use. Common faults and repair methods are as follows:

Decrease in dust removal efficiency: Possible reasons include filter bag damage, poor dust cleaning, air leakage, etc. It is necessary to check whether the filter bag is damaged, whether the dust cleaning system is working properly, whether there are air leakage points in the dust collector, and make corresponding repairs.

Excessive running resistance: Possible reasons include filter bag blockage, poor dust cleaning, excessive air volume, etc. It is necessary to check whether the filter bag is blocked, whether the dust cleaning system is working properly, whether the air volume is too large, and make corresponding adjustments.

Pulse valve failure: Possible reasons include solenoid valve damage, diaphragm damage, insufficient air source pressure, etc. It is necessary to check the solenoid valve, diaphragm and air source pressure, and replace or adjust accordingly.

Fan failure: Possible reasons include bearing damage, impeller wear, belt looseness, etc. It is necessary to check the bearings, impellers and belts, and replace or adjust accordingly.

3. Upgrading of automobile dismantling pulse bag dust collector

With the continuous improvement of environmental protection requirements and the continuous advancement of technology, it is becoming more and more important to upgrade the existing automobile dismantling pulse bag dust collector. Common upgrading solutions include:

Replacement of high-efficiency filter material: Replace the original filter material with a new filter material with higher filtration efficiency and better cleaning effect, such as PTFE coated filter material, nanofiber filter material, etc.

Upgrade the cleaning system: Upgrade the original cleaning system to a smarter and more efficient cleaning system, such as an online cleaning system controlled by PLC, an acoustic cleaning system, etc.

Add pre-dust removal device: Add pre-dust removal devices such as cyclone dust collector and gravity dust collector at the entrance of the dust collector to reduce the load of the dust collector and extend the service life of the filter bag.

Install an online monitoring system: Install an online monitoring system such as pressure difference, temperature, and dust concentration to monitor the operating status of the dust collector in real time and detect and handle faults in time.

4. Conclusion

Automobile dismantling pulse bag dust collector is a key equipment for controlling dust pollution in automobile dismantling. Through reasonable design, regular maintenance and timely transformation and upgrading, it can effectively improve dust removal efficiency, reduce operating costs, protect workers' health, and safeguard the green development of the automobile dismantling industry.