A device and method for treating emulsion wastewater in fully mechanized coal mining face

Abstract

The invention relates to a device and a method for treating emulsion wastewater of fully mechanized mining face in a coal mine. The device includes a cylinder, and the interior of the cylinder is sequentially provided with a bottom water flow channel, a bottom support plate, a filter head, a bottom grid plate, a bottom filter material layer, a two-way air flushing pipe, a middle grid plate, and a middle filter material from bottom to top. layer, the upper filter material layer and the upper clean water area, a plurality of filter heads are installed on the bottom support plate, the bottom of the side of the cylinder is provided with a water flushing port, an air flushing port, a water inlet and an air inlet, and the top of the cylinder is provided with A water outlet and a water outlet are arranged on one side, and an inspection hole is arranged on the outer wall corresponding to the filter material layer at the bottom of the cylinder. The device can collect and treat emulsion wastewater on the underground working face. The device adopts the technical principle of multi-stage adsorption, combined with two-way air flushing, which effectively removes macromolecular and refractory organic pollutants in the emulsion wastewater, and avoids the porous in the device. The compaction of the filler.

Description

technical field [0001] The invention belongs to the technical field of coal mine sewage and wastewater treatment, and in particular relates to an emulsion wastewater treatment device and method for fully mechanized mining working faces in coal mines. Background technique [0002] With the continuous improvement of coal mining mechanization, it is more and more common to use hydraulic support as roof support in fully mechanized mining face. During the operation and maintenance of the hydraulic support, a large amount of emulsion wastewater is discharged. This part of the wastewater flows through the working face and finally flows into the mine water, and it floats on the surface of the mine water to form a thick black oil film. Poor performance, affecting the coagulation and sedimentation of suspended solids in mine water, resulting in equipment fouling, causing blockage and collapse of inclined pipes in clarifiers, and seriously affecting the operation of mine water treatmen...

AI Technical Summary

Problems solved by technology

During the operation and maintenance of the hydraulic support, a large amount of emulsion wastewater is discharged. This part of the wastewater flows through the working face and finally flows into the mine water, and it floats on the surface of the mine water to form a thick black oil film. Poor performance, affecting the coagulation and sedimentation of suspended solids in mine water, causing fouling of equipment, causing blockage and collapse of inclined pipes in clarifiers, and seriously affecting the operation of mine water treatment plants

At present, for the emulsified oil in mine water, it is removed by mechanical scraping, chemical agent demulsification or ultrafiltration at the same time as mine water treatment, which has low treatment efficiency, high engineering investment and difficult treatment. Large, high operating costs and other defects

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