What measures are taken to control the massive accumulation of coal dust after the operation of thermal power plants?

In recent years, in order to obtain better economic benefits, all major thermal power plants in China have blended some lignite (or Indonesian coal). Due to the high volatile matter of lignite air-dried base (about 40% Vad on average), the environment of transfer station and trestle is extremely bad and the visibility is very low. A large amount of coal dust also brings great harm to the health of workers on site. At the same time, the ignition point of lignite is very low, and a large amount of coal dust can easily cause spontaneous combustion after the belt runs for a long time, which brings a severe test to the on-site fire prevention work.

In order to solve the above problems, dust cover is installed on the coal conveying belt, which can solve the dust pollution caused by lignite belt transportation in coal-fired power plants and the noise pollution caused by belt conveyor. The dustproof effect is nearly 100%, which greatly reduces the fire hazard in the coal conveying site.

20 15 invented the lifting sliding cover on the basis of the traditional all-inclusive dust cover. At present, three utility model patents and one invention patent have been obtained. 2065438+September 2005 Shanghai Waigaoqiao No.3 Power Generation Co., Ltd. installed all-inclusive dust cover on coal conveyor. At the end of 201May, Shanghai Waigaoqiao No.2 Power Generation Co., Ltd. installed lifting sliding dust cover on coal conveyor. After completion, the belt site environment has been obviously improved and won unanimous praise from the owners.

Advantages and disadvantages of lifting sliding cover dust cover;

Advantages: the dustproof effect is about 95%, the cleaning is simple and clean, and it is convenient to replace or maintain the idler parts.

Disadvantages: The seal may need to be replaced regularly for two years, but the cost is low.