Equipment for recovering precious metals from copper-containing sludge

Abstract

The invention relates to the technical field of copper-containing sludge treatment, in particular to equipment for recovering precious metals from copper-containing sludge. The equipment comprises a bottom plate, wherein supporting legs are fixedly arranged at the four corners of the bottom end of the bottom plate; four telescopic rods are arranged at the top end of the bottom plate; base plates are fixedly arranged at the top ends of the telescopic rods; a reaction box is fixedly arranged at the top ends of the four base plates jointly; the four base plates are distributed on the periphery ofthe bottom end of the reaction box at equal intervals; and first springs sleeve the telescopic rods. Through continuous ascending and descending of the reaction box, internal sludge water and a sodium sulfide solvent react sufficiently, the sodium sulfide and the sludge water react more sufficiently in cooperation with stirring of stirring blades, so that copper ions are recycled more thoroughly,generated copper sulfide can be filtered, meanwhile, a filter screen is prevented from being blocked, filtering is prevented from being affected, a filter screen frame is convenient to mount and dismount, the interior of the reaction box is convenient to clean, and the equipment is worthy of application and popularization.

Description

technical field [0001] The invention relates to the technical field of copper-containing sludge treatment, in particular to a device for recovering precious metals from copper-containing sludge. Background technique [0002] In order to deal with the heavy metal wastewater produced by industries such as electroplating and manufacturing, relevant enterprises produce a large amount of copper-containing sludge every year. The direct storage of copper-containing sludge may lead to the redissolution of heavy metals in it, causing secondary pollution to the environment, and it contains valuable metals such as copper and nickel, which has high utilization value. [0003] Copper needs to be recycled during the treatment of copper-containing sludge. When recycling copper, the existing recycling equipment first dilutes the sludge, and then pours chemical solvents into the diluted sludge to make it compatible with copper. Copper ions react to form compounds containing copper ions, and...

AI Technical Summary

Problems solved by technology

[0003] Copper needs to be recycled during the treatment of copper-containing sludge. When recycling copper, the existing recycling equipment first dilutes the sludge, and then pours chemical solvents into the diluted sludge to make it compatible with copper. Copper ions react to form compounds containing copper ions, and then the compounds containing copper ions are obtained by filtration, which realizes the treatment of sludge and the recycling of copper ions at the same time. However, in the process of using the existing recovery device, the When filtering compounds containing copper ions, the filter screen is prone to clogging, which leads to the inability of the filtration process to proceed smoothly and the uneven mixing of chemical solvents and diluted sludge, which affects the recovery of copper ions. Therefore, we propose a copper-containing sludge Equipment for recycling precious metals to solve such problems

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