Handan Zhongfu Industrial And Mining Accessories Co., Ltd.
Handan ZhongFu company is a professional manufacturer for underground mining supporting products with over ten year experience. We can manufacture Split sets ,friction bolt, Combi split sets, Expandable friction bolt,Swellex, Threaded bar bolt, Cable bolt, Combi cable bolt, Welded mesh, Domed plate, Nuts, other mining Equipment.
before and during the support process, we should knock the gang and ask the roof, and remove the dangerous rock gangue in time.
Two experienced personnel should be responsible for this work, one knocking the roof and one observing the roof. One person should stand in a safe place, and the observer should stand behind the side of the person who is prying the roof, and ensure that the way back is clear.
When the top gang encounters a large piece of fractured coal gangue or coal gangue away from the layer. Should first set up temporary support, to ensure safety, and then along the fissure, stratification knocking gang top shall not be forced to dig hard planing.
Knocking on the roof should start from the place with good support, from outside to inside, the first top after the two gangs in turn, knocking on the roof within the scope of other people are strictly prohibited to enter.
It is strictly prohibited to pull the anchor down by falling.
When knocking the roof with long tools, it should prevent the coal gangue from falling down the pole and hurting people.
Our address
West Side Of Jianshe Street, Southwest Industrial Zone, Linmingguan Town, Handan, Hebei, China
Phone Number
+8615830050566
zfgongkuang@aliyun.com
