Underground Sludge Treatment Equipment in Datong Coalfield, Shanxi Province

Description :

　　Underground Sludge Treatment Equipment in Datong Coalfield, Shanxi Province

　　Overview of Coal Mine Underground Sludge Treatment Equipment:

　　There are two types of underground sludge treatment equipment in coal mines: separate and horizontal, but in industry, horizontal is mainly used, abbreviated as "horizontal screw".

　　The underground sludge treatment equipment in coalfields mainly consists of high-speed drums, screws and differentials that rotate in the same direction as the drums and have slightly higher or lower speeds than the drums. When the suspension to be separated enters the centrifuge drum, the high-speed rotating drum generates strong centrifugal force to settle solid particles with higher density than the liquid phase onto the inner wall of the drum. Due to the different rotational speeds of the spiral and the drum, there is a relative motion (i.e. speed difference) between the two. The relative motion between the spiral and the drum is used to push the solid phase deposited on the inner wall of the drum towards the outlet at the small end of the drum, and the separated clear liquid is discharged from the other end of the centrifuge. The function of the differential (gearbox) is to create a certain speed difference between the drum and the screw.

　　The main processing flow can be summarized as follows:

　　The suspension enters the drum from the feed pipe, and the solid particles are accelerated and settled on the inner wall of the drum under the action of centrifugal force. The settled particles are pushed by the blades of the screw conveyor and are discharged from the settling zone (straight section) through the drying zone (cone section) to the solid phase outlet; The clarified liquid phase overflowed from the overflow hole. Thus achieving automatic and continuous separation of solid and liquid phases.

　　Performance advantages of underground sludge treatment equipment in Datong Coalfield, Shanxi Province:

　　Automatic, continuous operation, long-term operation, and easy maintenance. Can work under pressure and low temperature. Single machine production capacity is large, with a processing capacity of 0.4~60m3/h, particle size of 2 μ m~5mm, solid concentration of 1%~50%, and solid-liquid density difference greater than 0.05g/cm3. High separation factor, wide design range of drum length to diameter ratio, and adjustable depth of drum liquid pool. Therefore, it has strong applicability and a wide range of applications.

　　Horizontal coal field underground sludge treatment equipment: The separation factor is generally less than 3000, and it is commonly used to treat easily separable materials, such as flotation concentrate and tailings in coal washing plants. The drum is conical or column conical in shape, with a relatively small length to diameter ratio of 1-2.

　　Vertical coal mine underground sludge treatment equipment: The separation factor is generally greater than 3000, used for clarifying solid fine particles, smooth suspensions (such as activated sludge), etc. The characteristic is that the drum is cylindrical conical and double conical.

　　Coal field underground sludge treatment equipment has a wide range of applications:

　　Chemical industry (such as synthetic fiber resin, polyvinyl chloride), coal (such as coal powder dewatering), food (such as starch dewatering), pharmaceuticals (such as separation of animal fats), metallurgy (such as separation of mineral sand and impregnating solution), environmental protection (such as dewatering of activated sludge), etc.

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