Air agitation cyanidation leaching gold extraction tank and application

A technology of aeration and stirring and cyanidation leaching, which is applied in the direction of improving process efficiency, can solve the problems of insufficient stirring and other problems, and achieve the effects of fast start-up speed, convenient operation and low requirements.

Active Publication Date: 2016-03-16
GANSU ZHAOJIN PRECIOUS METALS SMELTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can stir through the air, but the stirring is not sufficient, it is still necessary to stir the main engine to drive the double impeller to rotate to assist in stirring the pulp

Method used

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  • Air agitation cyanidation leaching gold extraction tank and application
  • Air agitation cyanidation leaching gold extraction tank and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-2 shown.

[0032] An inflatable stirring cyanidation leaching gold extraction tank, comprising a carbon steel tank body 9, a carbon steel tank cover 11, a heating pipe 7 and seven pulp guide tubes 8; the pulp guide tubes 8 are vertically arranged on the carbon steel tank body 9; the slurry guide tube 8 is provided with an inflatable stirring tube 17; the heating tube 7 is arranged around the side wall of the carbon steel tank 9. When the aeration and agitation cyanidation leaching gold extraction tank of the present invention is in use, compressed air is input into the aeration agitation tube 17 through a compressor to perform agitation while aerating. Arranging the inflatable stirring tube 17 in the pulp guide tube 8 avoids the direct contact of the inflatable stirring tube 17 with the pulp, preventing the ore pulp from entering the inflatable stirring tube 17 and causing plugging. Another advantage of this structure is that the pressure air output ...

Embodiment 2

[0034] The gas-inflated stirring cyanidation leaching gold extraction tank as described in Example 1 is different in that the carbon steel tank body 9 is a cylindrical carbon steel tank body with a height-to-diameter ratio of 2; the slurry guide tube 8 is made of carbon steel , the diameter is 500mm; the diameter of the inflatable stirring tube 17 is 30mm; the distance between the slurry guide tube 8 and the bottom of the carbon steel tank 9 is 1000mm. Within this distance range, the mixing effect of the pulp is the best and the dispersion of the pulp is better.

Embodiment 3

[0036] The gas-inflated stirring cyanidation leaching gold extraction tank as described in Example 1 is different in that the heating pipe 7 has a diameter of 50 mm, and a third flow regulating valve 18 is provided at the inlet of the heating pipe 7 . The flow regulating valve is used to control the flow of hot water entering the HVAC pipe 7, and the HVAC pipe 7 heats the ore pulp in cold winter weather to stabilize the reaction temperature.

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Abstract

The invention relates to an air agitation cyanidation leaching gold extraction tank and application. The air agitation cyanidation leaching gold extraction tank comprises a carbon steel tank body, a carbon steel tank cover, a heating and ventilation pipe and a plurality of ore pulp guide shells, wherein the ore pulp guide shells are vertically arranged in the carbon steel tank body; air agitation pipes are arranged in the ore pulp guide shells; the heating and ventilation pipe is arranged on the side wall of the carbon steel tank body in a surrounding manner. When the air agitation cyanidation leaching gold extraction tank disclosed by the invention is used, compressed air is input into the air agitation pipes through a compressor, oxygen is charged, and besides, the effect of agitation is achieved. The air agitation pipes are arranged in the ore pulp guide shells, so that the situation that the air agitation pipes are in direct contact with ore pulp is avoided, and the ore pulp is prevented from entering the air agitation pipes.

Description

technical field [0001] The invention relates to an aeration-stirring cyanidation leaching gold extraction tank and its application, belonging to the technical field of non-ferrous metallurgy refining. technical background [0002] In the cyanide gold extraction process, the cyanide leaching of gold requires oxygen to participate in the reaction, so the process of cyanide leaching gold extraction needs to continuously blow air into the stirring leaching tank while stirring. At present, the cyanide leaching equipment mainly adopts a mechanical stirring leaching tank plus an air blowing device for supplementing air in the leaching tank and an air-floating aerodynamic leaching tank. The mechanical agitation leaching tank plus air blowing device has the disadvantages of complex rotating structure, high failure rate, high maintenance cost, high energy consumption, and low gold leaching rate. The air-floating aerodynamic leaching tank has no mechanical moving parts, and has the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B11/08C22B3/02
CPCC22B3/02C22B11/04C22B11/08Y02P10/20
Inventor 刘朋路良山杨斌喜王福鑫刘文君
Owner GANSU ZHAOJIN PRECIOUS METALS SMELTING
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