First  Mitsui Design must meet the following requirements: 1,          The mine discharge opening of Mitsui and the pouring seam of each middle section are strictly prohibited in the transportation lane, and separate corners and special forks should be used. 2,          In the middle section of the upper section, a sieve and a cover plate shall be provided. On the side of the entrance and exit to Mitsui, a distinctive sign shall be provided and sufficient lighting shall be installed. 3,          There are measures to prevent downhole water from flowing into Mitsui. 4,          At the location of the mine outlet and the middle section of the mine, there must be good ventilation and dust prevention measures. To communicate with the main wind flow of the mine, a special return air system should be used to avoid the series connection of the sewage. Second  It is strictly forbidden to put unqualified bulk, steel, wood and wire rope into the three wells to prevent plugging accidents. Article 3  When Mitsui is found to be clogged, the blockage, cause and treatment measures must be reported to the workshop immediately. After approval, the treatment can be carried out and the treatment should be reflected at any time. Personnel are prohibited from entering the mine and the funnel to handle the blockage. Coconut Shell Based Powdered Activated Carbon Coconut Shell Based Powdered Activated Carbon,Powder Activated Carbon,Activated Coconut Carbon,Coal Based Powder Activated Carbon Shanxi Xinhui Activated Carbon Co.,Ltd. , https://www.shanxixinhuicarbon.com