System and method for improving thickener handling capacity

Abstract

The invention relates to a system for improving thickener handling capacity. The system is characterized by comprising a slurry pump, a cyclone, and a thickener; a central feeding cylinder is arrangedat the upper part in the thickener; an outer feeding cylinder is arranged outside the central feeding cylinder; a feeding pipe of the cyclone is connected with the slurry pump; an overflow pipe of the cyclone is connected with a feeding port of a degassing tank, and a feeding port of the degassing tank is connected with the upper portion of the outer wall of the outer feeding cylinder through a low-concentration feeding pipe; an underflow pipe of the cyclone is connected with the bottom of the outer wall of the central feeding cylinder through a high-concentration feeding pipe. The inventionfurther relates to a method for improving thickener handling capacity. by utilizing the system. The system is simple in design and economical in cost; ore pulp is divided into low-concentration fine particles and high-concentration coarse particles for settling and reasonable flow separation; the handling capacity of the thickener is increased without changing the appearance of the thickener, theuse amount of a flocculating agent is reduced, meanwhile, the underflow concentration of the thickener is increased, and a promising application prospect is achieved.

Description

technical field [0001] The invention relates to a system for increasing the processing capacity of a thickener, and also relates to a method for increasing the processing capacity of the thickener, which belongs to the technical field of thickeners. Background technique [0002] As the main equipment for thickening ore pulp, the thickener is widely used in the field of mineral processing. The thickener is a solid-liquid separation device based on gravity settlement, usually a shallow cylindrical tank with a conical bottom built from concrete, wood or metal welded plates as structural materials, which can contain ore pulp with a solid weight of 10% to 20% Concentrate by gravity sedimentation into an underflow pulp with a solid content of 45% to 55%, so that the thickened underflow pulp is discharged from the bottom flow port at the bottom of the thickener, and the upper part of the thickener produces a relatively clean clarified liquid (overflow), which is discharged from the...

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Problems solved by technology

[0003] In order to improve the working efficiency of the thickener and shorten the time of pulp concentration, it is necessary to increase the processing capacity of the thickener. However, if it is difficult to increase the processing capacity of the thickener without changing the shape of the thickener, it is generally possible to increase the flocculation. It can be realized by adding agent or adding inclined plates or inclined tubes, the cost and cost are relatively high, and the efficiency is low

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