PURE-AIR introduces to you the momentary Kunshan dust explosion accident, and analyzes to major companies why explosion-proof dust purification equipment and iron dust collector are necessary!

A particularly serious aluminum dust explosion occurred in the second polishing workshop of Kunshan Zhongrong Metal Products Co., Ltd. in Suzhou City, Jiangsu Province on August 2, 2014. On the same day, 75 people were killed and 185 were injured, and the direct economic loss was 351 million yuan. The direct cause of this accident was that the dust removal system in the workshop of the accident did not clean up as required for a long time, and aluminum dust accumulated. After the fan of the dust removal system is turned on, the high temperature particles generated during the grinding process form a dust cloud above the dust collection bucket. The dust collection bucket of the No. 1 dust collector was rusted and damaged, the aluminum powder in the bucket was damp, and an exothermic reaction of oxidation occurred, reaching the ignition temperature of the dust cloud, triggering a series of explosions in the dust removal system and workshop.

Because there is no explosion venting device, the high-temperature gas and combustion products produced by the explosion are instantly ejected from the dust suction ports through the dust removal pipeline, causing all operators in the workshop to be directly affected by the explosion, causing mass deaths and injuries.

The company did not solve the long-standing problems and hidden dangers, which caused the dust concentration to exceed the standard, encountered an ignition source, and exploded. The factory building of the enterprise was not designed and constructed as a Class II dangerous goods site, and the production workshop was constructed in violation of the two-storey design and the building spacing was not enough. The production process route is too tight and dense, 29 production lines and more than 300 workstations are arranged in a 2000 square meter workshop. Insufficient dust removal capacity, and no independent dust collection device is designed for each post as required. All electrical equipment in the workshop is not configured in accordance with the explosion-proof requirements.

The safety production system and measures are not perfect or implemented, and the pipeline dust is not cleaned up every shift according to the regulations, causing dust accumulation to exceed the standard; no safety training is given to workers, and no flame-retardant and anti-static labor protection products are provided in accordance with the regulations; labor laws are violated, Overtime organization of work and various unsafe factors planted major hidden dangers for this accident. No accident is accidental, and an accident is inevitable.

From the above content, even if it is a large-scale central explosion-proof dust removal equipment, the lack of maintenance causes dust to accumulate, and finally causes a large accident. PURE-AIR technology's lab air filter, lab air filtration is small and occupies a small area, cleans the boundary, and is safe and reliable!

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