A high-efficiency settling device

Abstract

The invention belongs to the field of solid-liquid separation, and concretely discloses an efficient settling device. The efficient settling device comprises a primary settling groove and a secondary settling groove; the height H1 of the primary settling groove is smaller than or equal to 5.0m; the ratio (H2 / D2) of the height H1 to the diameter D1 is smaller than or equal to 0.3; the height H2 of the second settling groove is greater than or equal to 5.0m; the ratio (H2 / D2) of the height H2 to the diameter D2 is greater than or equal to 5; the ratio(D1 / D2) of the diameter D1 of the primary settling groove to the diameter D2 of the secondary settling groove is greater than or equal to 5; a feeding pump is arranged between the primary settling groove and the secondary setting groove; the feeding pump is used for pumping slurry flowing out from a primary bottom flow slurry outlet into the secondary setting groove. The efficient settling device provided by the invention has the advantages that the manufacturing cost is low; the construction difficulty is small; the stability after installation is high; the underflow concentration is high; the setting effect is good.

Description

technical field [0001] The invention relates to the field of solid-liquid separation, in particular to a high-efficiency settling device for concentrating and settling ore pulp. Background technique [0002] In the field of solid-liquid separation, especially in the field of slurry concentration and settlement, the commonly used concentration and settlement devices in the prior art are thickeners. The thickener is based on the action of gravity settlement, and concentrates the turbid liquid into an underflow slurry with a large solid weight through gravity settlement. Then, with the help of the rake installed in the thickener, the thickened underflow pulp is discharged from the underflow port at the bottom of the thickener. The thickener is not suitable for thickening materials larger than 0.3 mm, otherwise it will be easily silted; the concentration of the underflow pulp concentrated by the thickener is low; and if the machine breaks down, the continuity of production canno...

AI Technical Summary

Problems solved by technology

The thickener is not suitable for thickening materials larger than 0.3 mm, otherwise it will be easily silted; the concentration of the underflow pulp concentrated by the thickener is low; and if the machine breaks down, the continuity of production cannot be guaranteed; uniform

Another commonly used thickening and settling device in the prior art is the deep cone settling tank. Due to the high height of the deep cone settling tank, the concentrated underflow pulp has a high concentration, but its disadvantage is that the concentration and settling speed is slow; and the cost is high. The deep cone settling tank is bulky and has a large vertical height. The outriggers need to bear a very large pressure. This requires that the support must be firm, so the construction cost increases. At the same time, it also makes the construction difficult.

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