Copper sulfate two-effect automatic plate vacuum evaporation device

Abstract

A copper sulfate two-effect automatic plate-type vacuum evaporation device, its structure includes: steam inlet pipe, first-effect heating plate heat exchange gas, vapor-liquid mixture connecting pipe, first-effect vapor-liquid separation tank, first-effect secondary steam pipe, liquid level Meter, second-effect heating plate heat exchanger, second-effect vapor-liquid separation tank, foam catcher, second-effect secondary steam pipe, cooling water inlet pipe, water injector, primary concentrated liquid discharge pipe, second-effect evaporation feed liquid circulation pipe , two-effect evaporation circulation pump, control valve two, secondary concentrated liquid discharge pipe, semi-open chute, finished product concentrated liquid discharge pipe, copper sulfate stock solution feeding pipe, one-effect evaporation feed liquid circulation pipe, one-effect evaporation circulation pump, Control valve 1. Condensate discharge pipe. The invention controls the liquid intake through the liquid level detection of the evaporation separation tank and the liquid discharge through the on-line detection of the material concentration by the density meter, and realizes the continuous and automatic evaporation process.

Description

technical field [0001] The invention relates to a copper sulfate two-effect full-automatic plate-type vacuum evaporator, which is a device for purifying the electrolyte by evaporating and concentrating the waste electrolyte copper sulfate and then removing impurities in nonferrous metal smelting. Background technique [0002] Previously, the vacuum evaporation was a tube-and-tube siphon self-circulation evaporation device in the whole set of imported copper electrolytic refining technology and key equipment. months, and the 5-meter-long heat exchange tube must be dismantled and cleaned, which has become a bottleneck restricting production. [0003] Compared with the shell-and-tube evaporator, the improved plate evaporator is easy to clean and has high heat exchange efficiency, but the device has problems such as circulating water pollution and large steam consumption, especially for small and medium-sized copper evaporators that have no waste heat recovery or difficult steam...

AI Technical Summary

Problems solved by technology

[0002] Previously, the vacuum evaporation was a tube-and-tube siphon self-circulation evaporation device in the whole set of imported copper electrolytic refining technology and key equipment. months, and the 5-meter-long heat exchange tube must be dismantled and cleaned, which has become a bottleneck restricting production

[0003] Compared with the shell-and-tube evaporator, the improved plate evaporator is easy to clean and has high heat exchange efficiency, but the device has problems such as circulating water pollution and large steam consumption, especially for small and medium-sized copper evaporators that have no waste heat recovery or difficult steam sources. For smelting enterprises, high operating costs and direct discharge of circulating water polluted by copper sulfate are still the main obstacles restricting the application

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