A spiral tube type concentration device and its application method

Abstract

The invention discloses a spiral tube concentration device and a using method thereof. The spiral tube concentration device comprises a spiral tube, wherein the spiral tube is a spring-shaped hollow three-dimensional structure which is vertically arranged; a feeding hole is formed in the upper end of the spiral tube; a discharge opening is formed in the lower end of the spiral tube; and the discharge opening is separated into a concentrate discharge opening and a circulating water outlet through a separator. Coal slime is separated from the circulating water through centrifugal force generated by centrifugal circular motion of slime water entering a pipeline, the slime water concentration efficiency is greatly improved, and the investment cost is reduced.

Description

technical field [0001] The invention relates to a coal slime water concentration device, in particular to a spiral tube type coal slime water concentration device. Background technique [0002] When the coal preparation plant adopts the wet coal preparation process, the -0.5mm coal in the raw coal is usually separated by the flotation process. After separation, the slime water must be concentrated first, and the concentrated bottom flow after concentration can enter the subsequent equipment for dehydration. The concentrated overflow after concentration can be used continuously as circulating water. [0003] At present, the slime water after flotation and sorting is concentrated by gravity concentration device, and the concentration efficiency of the concentration device is largely determined by the acceleration of concentration, but since the gravity acceleration of the gravity concentration device is a fixed value, it is relatively It is said that the sedimentation speed o...

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Problems solved by technology

[0003] At present, the slime water after flotation and sorting is concentrated by gravity concentration device, and the concentration efficiency of the concentration device is largely determined by the acceleration of concentration, but since the gravity acceleration of the gravity concentration device is a fixed value, it is relatively The sedimentation speed of fine mud in coal slime water is relatively slow, takes a long time, and the concentration effect is not good

In actual concentration, in order to ensure the concentration quality and increase the concentration efficiency, the gravity concentration device is required to provide a larger settling area, which increases the actual investment and the concentration effect is still unsatisfactory.

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