According to Xinhua News Agency, on January 20, reporters learned from the Changzhou Wujin District Emergency Management Bureau that at 3:38 on January 20, a dust explosion occurred in the production workshop of Changzhou Shenrong Metal Technology Co., Ltd. located in Nanxiashu Street, Wujin District. A total of 8 people died and 8 others were slightly injured. The rescue at the accident site has ended, and investigation and aftermath work are underway.
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Image source: CCTV News
Small dust, big hidden danger
There are many combustible dusts in industry
There are also risks of dust explosions in life that cannot be underestimated
Improper use of flour, starch, coffee powder, etc.
Will explode
And powerful
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Dust explosion chemical reaction is extremely fast
Very destructive
once it happens
Often results in a large number of casualties
The following video comes from
Manufacturing principle
How to prevent "dust explosions"
01 Eliminate ignition sources
(1) Reliable grounding;
(2) Use dust explosion-proof electrical appliances;
(3) Spark detection and extinguishing;
(4) Eliminate open flames;
(5) Prevent local overheating;
(6) Do not hit with metal to prevent sparks.
02 Eliminate flammable materials
(1) Keep the workspace tidy and clean properly;
(2) The surface of the equipment is clean and there is no accumulation of dust;
(3) Improve process equipment and eliminate the root causes of dust accumulation in equipment.
03 Eliminate oxidants
(1) Internal air inerting;
(2) Replace oxygen with inert gases such as nitrogen, carbon dioxide, etc.
04 Improve protection measures
(1) Explosion;
(2) Explosion suppression;
(3) Explosionproof;
(4) Improve the pressure resistance of the equipment;
(5) Use multiple protection schemes together.
Household: When using dust, stay away from open flames. When making flour or wheat flour, be sure to stay away from open flames such as natural gas on the stove. It is best to open the window. Myth: Never use flour to put out a fire in a pot.
Factory: Prevent dust deposition and clean up the dust in time to prevent dust from flying around. Set up special protective covers and local exhaust hoods to maintain a ventilated environment.
