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我矿原设计污水管路约长3公里,运输用石灰乳中和后的沉渣(含水90％以上),管路结钙严重,三条φ125毫米共长3公里的管路,运行约3年全部堵塞,影响生产。为此新建管路加明渠工程,投资约50万元。新工程为节约投资,拟用原旧钢管,采用人工敲打管壁加压力水冲洗,来清除管子中的结钙,只化5000元,废旧物得以再用,节约了开支。新明渠工程中仍有管路部分,为解决今后清除结钙问题,增加了备用管,做到可定期更换,确保生产。在具体工程中作了更改,单根长度控制在5—6米,管路联接采用煤炭部标MT35—79GJJ型GJH
I mine the original design of the sewage pipe about 3 km long, the transport of sediment with milk and neutralization (more than 90% water), pipeline junction calcium serious, three φ125 mm total length of 3 km of pipe running about 3 years all Blockage, affecting production. To this end the new pipeline plus open channel project, about 500000 yuan investment. The new project to save money, it is proposed to use the old steel pipe, using manual pipe wall pressure water rinse to clear the pipe of calcium, only 5000 yuan, waste materials can be reused, saving money. There are still some pipelines in the new open channel project. In order to solve the problem of clearing the calcium in the future, a spare pipe has been added so that it can be replaced on a regular basis to ensure production. Made changes in the specific project, a single length of control in the 5-6 meters, the Ministry of Coal Pipeline standard MT35-79GJJ type GJH