Thickener

Abstract

The invention relates to a thickener, which comprises a thickening cabinet, a feeding barrel, a harrowing device, a self-diluting device which comprises a clear liquid lifting barrel arranged in the thickening cabinet, an air supply pipe of which one end stretches into the clear liquid lifting barrel from the lower end of the clear liquid lifting barrel and an air source, wherein a clear liquid outlet of the clear liquid lifting barrel is communicated with the interior of the feeding barrel, and the horizontal height of the clear liquid outlet is higher than that of the upper liquid level of clear liquid in the thickening cabinet; and the air source is connected with the other end of the air supply pipe and is used for supplying air into the clear liquid lifting barrel through the air supply pipe so that the upper liquid level of the clear liquid in the clear liquid lifting barrel can be raised to be higher than the height of the clear liquid outlet. The self-diluting device of the thickener according to the embodiment of the invention has the advantages of compact structure, less auxiliary equipment, easy maintenance and operation, low failure rate and lower cost. Besides, parameters are easy to adjust, and the height of the upper liquid level of the clear liquid in the clear liquid lifting barrel can be changed by changing the air input so as to change the dilution quantity.

Description

Technical field [0001] The invention relates to a thickening machine, in particular to a thickening machine with a diluting device capable of accurately controlling the amount of self-diluted clear liquid. Background technique [0002] Concentrator is a device widely used for solid-liquid separation. Solid-liquid separation technology refers to the separation of solid and liquid phases from suspension, with the purpose of recovering valuable phases or preparing for the next operation. For the separation of solid-liquid phases with density differences, the acceleration field can be used to restrict the liquid phase and the solid phase to move downwards in it, so that the suspended liquid becomes a dense paste with only a small amount of water and only For clear liquids with a small amount of solids, this process is called gravity sedimentation. [0003] The concentration of solids in the suspension has a greater impact on the efficiency of solid-liquid separation. Generally speakin...

AI Technical Summary

Problems solved by technology

[0005] However, the above scheme uses a pump system to deliver the diluted serum, so the structure is more complicated and maintenance is inconvenient

Moreover, since the pump is immersed in the feed liquid, the working and mining conditions are harsh, and it is prone to failure. Therefore, the requirements for the pump are very high, which increases the cost.

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