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Horizontal type screw settling centrifuge product-enlarging method

A decanter centrifuge and horizontal screw technology, which is applied to centrifuges, centrifuges with rotating drums, and separation of sediments by centrifugal force. It can solve the problems of large barium content in the filtrate, and achieve investment savings and significant economic benefits. Efficiency, the effect of facility reduction

Inactive Publication Date: 2008-12-17
ZHUSHAN COUNTY QINBA BARIUMSALT CO LTD
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  • Summary
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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

Method used

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Examples

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Embodiment Construction

[0006] A horizontal spiral sedimentation centrifuge production expansion method, using the horizontal spiral sedimentation centrifuge to separate the compounded liquid, the horizontal spiral sedimentation centrifuge rotates at 1800 rpm, the current is 30A, and the separated filtrate passes through the clarification tank for two consecutive The second clarification, the twice clarified barium sludge returns to the inlet of the horizontal screw sedimentation centrifuge for re-separation, realizing a closed loop. The barium content of the obtained product is 0.01%, which is better than 0.15% of the original process. The production capacity is doubled, and the power consumption does not increase. %, without affecting capacity and quality.

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B01D21/26B04B1/00
Inventor 王成显
Owner ZHUSHAN COUNTY QINBA BARIUMSALT CO LTD
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