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A method for cleaning pipeline slag accumulation without disassembly in zinc hydrometallurgy

A technology for hydrometallurgical zinc smelting and pipeline slag accumulation, which is applied to the improvement of process efficiency, metal recovery, recycling technology and other directions to achieve the effects of good effect, fast slag accumulation and simple operation.

Active Publication Date: 2015-08-05
ZHUZHOU SMELTER GRP
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for cleaning pipeline slag accumulation without disassembly in zinc hydrometallurgy, so as to solve the problems existing in the above-mentioned various methods

Method used

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  • A method for cleaning pipeline slag accumulation without disassembly in zinc hydrometallurgy

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Embodiment Construction

[0016] refer to figure 1 , a device for cleaning pipeline slag accumulation without disassembly in zinc hydrometallurgy, comprising an acid concentration tank 1, an underflow intermediate tank 4, an underflow circulation tank 7, a slag removal pump 5, a first slag accumulation pipeline 6, an underflow circulation pump 8, The second slagging pipeline 9, the bottom of the acid concentration tank 1 is connected with a branch pipeline, one end of the branch pipeline is connected to the underflow intermediate tank 4 through the underflow diversion pump 2, and the other end is connected to the lower process pipeline through the delivery pump 3, the said The acid concentration tank 1 and the underflow intermediate tank 4 are provided with an acid slurry delivery pipeline, the bottom of the underflow intermediate tank 4 is connected to two pipelines, one pipeline is connected to the underflow circulation tank through the slag cleaning pump 5 and the first slag accumulation pipeline 6 ...

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Abstract

The invention relates to a method for cleaning pipeline accumulated slag in a disassembly-free mode in zinc hydrometallurgy. The method comprises steps of initial ore pulp preparation, final ore pulp preparation, slag cleaning circulation, and the like. By adopting the method, two pipelines can be simultaneously cleaned, a bent pipeline can be also cleaned with rapid slag cleaning speed, high efficiency and good effect, the pipelines do not need to be disassembled, the automation degree is high, the cost is low, a part of valuable metal in the cleaned ore pulp can be recycled, and meanwhile, the environment is not polluted.

Description

technical field [0001] The invention relates to a method for cleaning pipeline slag without disassembly, in particular to a method for cleaning pipeline slag without disassembly in wet zinc smelting. Background technique [0002] The traditional zinc hydrometallurgy process mainly includes roasting, leaching, leachate purification and electrolysis of zinc sulfide concentrate. Before the zinc sulfide concentrate is roasted at high temperature, the amount of calcium oxide in the zinc concentrate accounts for about 0.9% to 1.0%. The amount of magnesium oxide accounts for about 0.2% to 0.3%. After roasting, almost all of them enter the leaching process together with the calcine. During the leaching process, about 10% of the calcium and magnesium in the calcine enter the liquid phase in the form of calcium sulfate and magnesium sulfate. A saturated solution of calcium sulfate and magnesium sulfate is formed. At the same time, there is also a certain concentration of calcium and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B19/00C22B7/00C22B3/04
CPCY02W30/54Y02P10/20
Inventor 虢振强朱永祥谷卫胜张万生尹华光陈二云贺屹松李沁周礼要王志强
Owner ZHUZHOU SMELTER GRP
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