Cause of the accident by corrosion causing the drum to ruptu
Corrosion is light class factory to pay special attention to the use of centrifuges. Corrosion will allow the centrifuge drum and other parts of wall thinning, lower intensity, leading to rupture accident.
Cause of the accident
Most of the products of the chemical plants, sugar and molasses of the sugar mills are corrosive, the drum a long time in the corrosive medium under severe corrosion, as well as drum drum wall thinnest below the minimum allowable wall thickness. In particular, some made of cast iron casing, the material of uneven thickness, the error of 8 ~ 30mm, crushed shell in the rupture of the drum.
1996 to mid-1997 crop of a sugar factory in Liuzhou area occurred in one case of an accident: A sugar suspended centrifugal honey machine running drum suddenly breaking and debris flying out of the machine, the brick wall labeled as a pit, thanks to did not hit the workers at the site, otherwise the consequences could be disastrous.
After analysis of the centrifuge, and found that the drum wall breaks due to corrosion of the molasses has thinned to only 1lmm (new Drum wall thickness of 16mm, the centrifuge is the ninth crop). This wall thickness can maintain a safe operation? Available of the calibration of the centrifuge drum strength conditions.
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