Charcoal-isolated drum sieve

Abstract

The invention relates to the technical field of ore pulp filtering, in particular to a charcoal-isolated drum sieve. The charcoal-isolated drum sieve comprises a drum sieve screen and a drum frame supporting the drum sieve screen. The inner wall of the left end of the drum frame is connected with a pipe, a bearing penetrates into the pipe, the bearing, the pipe and an axis of the drum frame are superposed, one ends of the bearing and the pipe extend out of an adsorption groove, and a sealing device is arranged at a contact position of the pipe and the adsorption groove. Since the drum sieve of the charcoal-isolated drum sieve can rotate, open area of the ore pulp on a charcoal-isolated sieve is improved by three times as compared with that of an original fixed type drum sieve, utilization of the sieve screen is up to 100%, the service life of the sieve screen is prolonged by one time as compared with that of the original fixed type drum sieve, and the sieve screen can be replaced flexibly and conveniently. Further, activated charcoals blocking screen meshes can be scoured by the ore pulp along with rotation of the drum sieve, and the problem of blockage of the sieve screen is solved. By the aid of the sealing device, loss of gold between grooves is avoided and economic loss is reduced.

Description

technical field [0001] The invention relates to the technical field of pulp filtration, in particular to a carbon-separated cylindrical screen. Background technique [0002] In the production process of all-slimed cyanide carbon pulp gold separation, the pulp in the activated carbon adsorption tank needs to be filtered and discharged, but due to the poor sealing performance of the existing carbon screen, the activated carbon adsorbed with gold appears to be adsorbed along with the filtered pulp. Out of the tank, resulting in economic losses. Moreover, the existing carbon screen is a fixed cylindrical screen. The fixed cylindrical screen is feasible in the production of small daily ore processing and low mud content in the ore, but the mud content is relatively large when the daily processing is 3,000 tons and above. In the production process, due to the small contact area of ​​the screen, the screen is blocked by activated carbon or silt, and the slurry is not smooth, resu...

AI Technical Summary

Problems solved by technology

[0002] In the production process of all-slimed cyanide carbon pulp gold separation, the pulp in the activated carbon adsorption tank needs to be filtered and discharged, but due to the poor sealing performance of the existing carbon screen, the activated carbon adsorbed with gold appears to be adsorbed along with the filtered pulp. Out of the tank, resulting in economic losses

Moreover, the existing carbon screen is a fixed cylindrical screen. The fixed cylindrical screen is feasible in the production of small daily ore processing and low mud content in the ore, but the mud content is relatively large when the daily processing is 3,000 tons and above. In the production process, due to the small contact area of ​​the screen, the screen is blocked by activated carbon or silt, and the slurry is not smooth, resulting in overflow tanks, overflow tanks, etc., resulting in uneven distribution of activated carbon density in each adsorption tank, which greatly reduces The gold loading capacity of the activated carbon is reduced, which eventually leads to a high grade of the tail liquid, a decrease in the recovery rate of the beneficiation, and affects the normal operation of the beneficiation production.

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