Multistage composite filtering type welding fume purification system

Abstract

The invention discloses a multistage composite filtering type welding fume purification system. The multistage composite filtering type welding fume purification system comprises a flame arrester, a primary filter, a spraying impurity remover, a static dust remover, a medium-efficiency filter, a TiO2 photocatalyst purifier and a negative ion generator which are sequentially connected through pipelines. The multistage composite filtering type welding fume purification system has the advantages that the welding fume is treated step by step, filter device blocking can be prevented, and accordingly the system can continuously and effectively purify the welding fume.

Description

technical field [0001] The invention belongs to the field of environmental protection devices, and relates to a multi-stage composite filtering type welding fume purification system. Background technique [0002] The traditional welding fume purification is based on electrostatic dust removal plus filtration. Both electrostatic dust removal and filtration are treated with dusty air at the same time. In this way, it is impossible to take care of both large particles and small particles at the same time. At the same time, the temperature of welding fume is relatively high after entering the purifier. Great impact on filter life. Some products use activated carbon to absorb the dust after preliminary filtration, but the dust needs to overcome the large resistance when passing through the activated carbon, and in order to make the air fully contact with the activated carbon, the wind speed needs to be reduced, so this type of purification device is bulky, with high resistance an...

AI Technical Summary

Problems solved by technology

[0002] The traditional welding fume purification is based on electrostatic dust removal plus filtration. Both electrostatic dust removal and filtration are treated with dusty air at the same time. In this way, it is impossible to take care of both large particles and small particles at the same time. At the same time, the temperature of welding fume is relatively high after entering the purifier. Great influence on filter life

Some products use activated carbon to absorb the dust after preliminary filtration, but the dust needs to overcome the large resistance when passing through the activated carbon, and in order to make the air fully contact with the activated carbon, the wind speed needs to be reduced, so this type of purification device is bulky, with high resistance and high energy consumption.

[0003] In addition, in actual use, the primary filter of welding fume will be blocked by surrounding particles with the increase of welding workload and ventilation volume. After the blockage, the exhaust air volume will decrease, and the exhaust effect will be poor. In the process of growth, the exhaust air volume is also continuously attenuated, that is, the initial filtration efficiency and air flow cannot be maintained.

This is also the inherent chronic disease of the existing smoke and dust purification device

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