Water non-stop continuous cleaning method and equipment for coal mine underground central water sump

Abstract

The invention relates to a water non-stop continuous cleaning method and equipment for a coal mine underground central water sump, which are used for achieving continuous and effective cleaning on coal slime in the sump when the coal mine underground central water sump is in a normal use state. The water non-stop continuous cleaning method comprises: firstly, according to a coal slime settling test,determining a settling length of the coal slime in the coal mine underground central water sump; according to the settling length, setting a cofferdam, so that a settling water sump is formed from a sump opening of the water sump to the cofferdam; then enabling a mud scraper to reciprocate in the settling water sump to gradually collect the coal slime to the sump opening of the water sump from outside to inside; conveying the coal slime into a double-layer vibratory screening dehydrator by a screw scraper conveyer arranged at the sump opening of the water sump to carry out screening and dehydration; directly loading discharged dry coal slime to a vehicle for carrying away, and enabling screened water to flow back to the water sump. According to the water non-stop continuous cleaning method and equipment for the coal mine underground central water sump, a driven sump cleaning mode is changed into a driving sump cleaning mode, the integral cleaning process is continuous and efficient, system equipment can be started up and shut down at any time, the water non-stop continuous cleaning method and equipment are simple and convenient to operate, equipment in the sump does not need to be operated by special personnel, and the personal potential safety hazard of the underwater operation is eliminated.

Description

technical field [0001] The invention relates to a method and equipment for continuous cleaning of a central water tank in a coal mine without stopping water, which is used for realizing continuous and effective cleaning of coal slime in the central water tank in a coal mine under normal use, and belongs to the technical field of cleaning of a coal mine water tank. Background technique [0002] The central water tank under the coal mine is one of the necessary key facilities for all coal mines. Its main function is to store the underground water gushed out of the mine and various waste water produced by coal mining, such as spray dust suppression waste water, flushing waste water, coal mining waste water, etc. , The waste water is settled and clarified in the water tank, and then returned to the surface underground for reuse. After a period of time, the precipitated coal slime in the water tank will be full, reducing the water storage capacity of the water tank. Therefore, i...

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Problems solved by technology

In recent years, equipment for cleaning coal slime in water bunkers has emerged more and more, realizing the mechanized cleaning of coal slime in underground coal mines. It generally has the characteristics of large equipment volume, complex system composition, many operators are required, continuous work cannot be achieved well, it is only suitable for regular cleaning, a cleaning time is long, and the workload is large, which leads to the coal slime in the water tank. There is a great deal of passivity in cleaning

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