Bag dust collector is a modern dust removal equipment, mainly used in factories, coal mines, chemical plants and other places of dust management, can effectively reduce the concentration of dust in the air, improve the cleanliness of the working environment. However, with the occurrence of some incidents in recent years, the safety problem of cloth bag dust collector has aroused widespread concern in society. This paper will discuss the problems of the bag dust collector from the perspective of safety hazards.

First of all, the bag dust collector may cause fire. The working principle of the bag dust collector is to absorb and collect the dust in the air by filtering, so the bag dust collector only collects dust and does not burn, and does not cause fire under normal circumstances. However, in the actual use of the process, the bag dust collector will accumulate some adsorbed combustible substances, such as wood chips, coal powder, etc., in the long-term operation process, due to the continuous rise of the internal pressure of the equipment, it is easy to lead to the abnormal failure of the valve, and these accumulated combustible substances are easy to cause a fire once they encounter a heat source.

Secondly, the bag dust collector may have an explosion risk. In the process of use, the bag dust collector often encounters dangerous goods such as expanding gas and flammable gas, and the equipment also has explosive property inside the equipment, such as ash accumulated in the bottom of the equipment and the equipment filter. If these combustible gases accumulate and precipitate in the equipment, or external factors such as lightning cause static electricity to accumulate, it may cause an explosion, causing great harm to the operator and the equipment itself.

Thirdly, the bag dust collector will produce noise pollution. Bag dust collector will produce a certain amount of noise at work, if the equipment in the factory area is dense, the noise will accumulate over time to affect the health of employees. Exposure to high noise for a long time can cause various health problems such as hearing loss and mental illness. Therefore, the bag dust collector with excessive noise should be optimized and improved to meet the industrial noise standard.

Finally, the bag dust collector has the problem of gas purification in the flue gas. In coal mines, fuel power plants and other industries, flue gas often contains sulfur dioxide, nitrogen oxide and other harmful gases, the release of these gases directly leads to atmospheric pollution. Bag dust collector usually removes harmful gases in the flue gas by chemical reaction, and absorbs them by chemical absorption liquid, but if the recovery of chemical adsorption liquid is not thorough, it will lead to cross-pollution of harmful gases. This will increase the risk of environmental pollution and cause irreversible pollution to the atmospheric environment.

In summary, although the bag dust collector can effectively reduce the dust pollution of the factory, but the safety risks also exist. In the process of design and use, safety hazards must be comprehensively investigated and rectified in strict accordance with the standards. Only by comprehensively strengthening safety awareness, strengthening daily inspection, and reducing the interference of various human factors can we effectively maintain the safety of bag dust collector equipment.