Horizontal type screw settling centrifuge product-enlarging method

Abstract

The invention provides a production capacity expanding method for a horizontal decanter centrifuge. After the completion of chemical combination, the liquid is separated by the horizontal decanter centrifuge; the rotation speed of the horizontal decanter centrifuge is 1,800rpm and the current is 30A; after separation, the obtained filtrate is clarified for twice by a clarifying tank and after two clarifications, the obtained barium mud therefrom is returned to an inlet of the horizontal decanter centrifuge for a second separation; the whole process is a closed circulation. By adopting the method, the filtrate is clarified continuously without increasing energy consumption, therefore, the increase of wet content does no influence the production and the barium content of the obtained product is superior to that obtained by the original technology; furthermore, the production capacity is doubled and the facility is reduced, thus saving the investment and the freight as well as having remarkable economic benefit.

Description

technical field [0001] The utility model relates to a method for expanding production of a horizontal spiral sedimentation centrifuge. Background technique [0002] The prior art separates the compounded solution of barium sulfate and sodium sulfide, and widely adopts a horizontal spiral sedimentation centrifuge for separation. This equipment has a high-speed rotating drum. After the dilute material enters, under the action of centrifugal force, the denser The barium cake is thrown to the inner wall, while the lye is inside the drum, and the filter cake is discharged by the scraping screw. The barium sulfate industry mostly uses a special LW45*1800 centrifuge. When the current is 30A, its speed is 2700 rpm, The processing capacity is 9-10 tons, and the barium content of the filtrate is 0.15%. When the processing capacity increases, it is generally adopted to increase the number of horizontal spiral sedimentation centrifuges. Because when the equipment production capacity is...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the production capacity of the horizontal spiral sedimentation centrifuge and solve the problem of high barium content in the finished filtrate, the present invention proposes a production expansion method for the horizontal spiral sedimentation centrifuge