Method and equipment for direct treatment of water gushing in coal mining face

Abstract

The invention provides a method and equipment for directly treating water burst on a coal mining work face. The method and equipment is suitable for carrying out a direct purifying treatment on water burst on a coal mining working face in a coal mine. The water is subjected to the following steps: primary screening, buffering, carrying out centrifugal precipitation, press-filtering to remove water, loading dry coal slurry to a cart, and introducing clean water to the central water chamber. A primary buffer tank, a slurry conveying pump, a horizontal spiral settlement filtering centrifuge, a middle buffer tank, a press-filtering feed pump, and a coal slurry dehydrating filter press are connected through pipelines to form a machine set, which can directly treat the water burst on a working face. The provided method and equipment are continuous and high efficient, the coal slurry sediments in the central water chamber is greatly reduced, the normal water storing function of the water chamber is guaranteed, the frequency of cleaning on the central water chamber is reduced, and moreover the cleaning difficulty in the central water chamber is reduced too.

Description

technical field [0001] The invention relates to a method and equipment for directly treating water gushing in a coal mining face, which is suitable for direct purification treatment of gushing water in a coal mining working face, and belongs to the technical field of water gushing control in coal mines. Background technique [0002] Crack water seepage in coal mining face, water content between coal seams, dust fall in working face, cooling water of coal mining equipment, etc. are collected in large quantities during the coal mining process, engulfing coal particles and sediment in the working face, forming water gushing in the working face. At present, it mainly relies on the water tank (sedimentation tank) in the mining area to settle the water gushing coal slime. However, the water tank in the mining area has a small capacity, and if it is not excavated in time, it will deposit, causing a large amount of water containing large particles of slime to flow into the central wa...

AI Technical Summary

Problems solved by technology

At present, it mainly relies on the water tank (sedimentation tank) in the mining area to settle the water gushing coal slime. However, the water tank in the mining area has a small capacity, and if it is not excavated in time, it will deposit, causing a large amount of water containing large particles of slime to flow into the central water tank, resulting in the coal in the central water tank. Mud accumulated rapidly, increasing the workload of clearing and excavating the central water tank

At the same time, the number of water tanks built in the mining area is large, the construction period is long, and cleaning is difficult, which affects the safety of flood control

The coal slime sedimentation effect of the water tank in the mining area is uncertain, which makes it difficult to control the water storage requirements of the central water tank

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