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Automatic feeding and discharging control method of copper sulfate vacuum evaporation device

A control method and vacuum evaporation technology, which is applied in the field of nickel, non-ferrous metal copper, and cobalt hydrometallurgy process, can solve the problems of high operating cost, circulating water, difficult steam source, circulating water pollution, etc., and achieve good evaporation effect and steam The effect of reduced dosage and easy operation

Inactive Publication Date: 2015-09-23
贵溪市鑫浩泰环保科技有限公司
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Problems solved by technology

[0004] Compared with tube-and-tube evaporators, plate evaporators are easy to clean and have high heat exchange efficiency, but there are problems such as circulating water pollution and large steam consumption, especially for small and medium-sized copper smelting enterprises that do not have waste heat recovery or have difficulty in steam sources. High cost and direct discharge of circulating water polluted by copper sulfate are still the main obstacles restricting the application

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  • Automatic feeding and discharging control method of copper sulfate vacuum evaporation device

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Embodiment Construction

[0026] The description is as follows in conjunction with the drawings:

[0027] The method of the present invention includes:

[0028] (1) Liquid inlet control

[0029] The copper sulphate stock solution enters the one-effect evaporation separation tank through the centrifugal pump driven by the frequency conversion motor and the feed pipe. When the level gauge installed on the top of the separation tank detects that the liquid level is close to the set level, the pump is driven by the frequency conversion to reduce the liquid intake When reaching the limit liquid level, the liquid inlet pump stops running, and no longer sends liquid to the first-effect evaporation separation tank;

[0030] (2) Drainage control

[0031] First-effect evaporative separation tank drain: when the density meter installed in the lower half of the separation tank detects that it is concentrated to the set density, the drain valve opens to send liquid to the second-effect separation tank, which is also the l...

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Abstract

The invention discloses an automatic feeding and discharging control method of a copper sulfate vacuum evaporator. The method comprises the following steps: liquid feeding control, liquid discharging control, and safe operation of device. Through the control method, the copper sulfate evaporating effect is improved, the steam using amount is reduced by 50%, moreover, the circulating water in the device is pollution-free, and the method has the advantages of reliability and convenient operation.

Description

technical field [0001] The invention relates to a method for realizing automatic feeding and automatic discharging control device on the vacuum evaporation system that removes impurities after evaporating and concentrating the waste electrolyte to purify the electrolyte, and belongs to the hydrometallurgy of non-ferrous metals copper, nickel and cobalt A kind of craft. Background technique [0002] In 1985, Guixi Smelter imported a complete set of copper electrolytic refining technology and key equipment from Japan's Sumitomo Metal Co., Ltd., among which the vacuum evaporation is a tube-and-tube siphon self-circulation evaporation device, which is provided by Japan and manufactured by itself in China. The disadvantage is that the material is fouled. Afterwards, it is difficult to clean, resulting in a rapid decrease in evaporation rate and an increase in steam consumption. The cleaning cycle is less than 3 months, and the entire 5-meter-long heat exchange tube must be disass...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/30B01D1/26C01G3/10
CPCY02P20/10Y02P70/10
Inventor 朱东升刘仁杰朱哲皓
Owner 贵溪市鑫浩泰环保科技有限公司