Treatment method and device for paste filling pipeline

Abstract

The invention discloses a treatment method and device for a paste filling pipeline, relates to the technical field of mining area backfilling, and mainly aims to provide the treatment method for the paste filling pipeline. The method can quickly block and dredge the filling pipeline and can prevent water for drainage and cleaning from entering a stope in the paste filling process. According to the main technical scheme, the treatment method for the paste filling pipeline comprises the steps: dredging the blocked filling pipeline through high-pressure air; conducting drainage and cleaning on the filling pipeline through water, and discharging the water into the sedimentation tank; and cleaning the filling pipeline after filling through high-pressure air. The method is mainly used for mining area backfilling.

Description

technical field [0001] The invention relates to the technical field of backfilling in mining areas, in particular to a treatment method and device for filling pipelines with paste. Background technique [0002] After mining ore in the mine, a large number of goafs will be formed underground. The goafs are likely to cause safety problems such as surface subsidence and edge collapse. If the goafs are not dealt with in time, there will be safety hazards in the mining work. Therefore, It is necessary to carry out filling operations on the formed mining area, which can not only eliminate potential safety hazards, but also improve resource recovery rate and reduce loss rate and dilution rate. [0003] The existing method is to use paste to fill the formed mining area. Paste filling has the advantages of no segregation of slurry, no dehydration of the stope, good filling body homogeneity, and high strength. It is the best filling quality at present. A filling mode. However, due t...

AI Technical Summary

Problems solved by technology

However, due to the high concentration of filling slurry in paste filling, its transportation resistance in the pipeline is large, which leads to pipeline blockage during pipeline transportation. Once the pipeline is blocked, it needs to be dredged in a short time, otherwise the filling material After the slurry is solidified, the pipeline will be scrapped and cannot be used. However, the paste filling slurry has a high concentration and high viscosity. After the pipe is blocked, it is difficult to quickly dredge it and requires a lot of manpower to dismantle the pipeline piece by piece. , in order to transport the pipeline smoothly in the filling operation, a large amount of clean water must be used for drainage at the beginning of filling, and a large amount of clean water is required for cleaning the pipeline at the end of filling, which will inevitably discharge a large amount of water into the stope, not only wasting water resources , and will lead to a decrease in filling quality and affect the filling effect

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