Copper sulfate double-effect automatic plate-type vacuum evaporation device

Abstract

A copper sulfate double-effect automatic plate-type vacuum evaporation device comprises a steam inlet pipe, a single-effect heating plate-type heat-exchange device, a steam-stripping mixer connection pipe, a single-effect steam-liquid separating tank, a single-effect secondary steam pipe, a liquid-level meter, a double-effect heating plate-type heat-exchange device, a double-effect steam-liquid separating tank, a foam capturing device, a double-effect secondary steam pipe, a cooling water inlet pipe, a water injector, a primary concentrated liquid discharging pipe, a double-effect evaporation material liquid circulation pipe, a double-effect evaporation circulation pump, a control valve B, a secondary concentrated liquid discharging pipe, a semi-opened chute, a finished product concentrated liquid discharging pipe, a copper sulfate raw liquid feeding pipe, a single-effect evaporation material liquid circulation pipe, a single-effect evaporation circulation pump, a control valve A, and a condensed water discharging pipe. The device controls the liquid feeding by detecting the liquid level in the evaporation separating tank and controls the liquid discharging by using a densitometer to carry out on-line detection so as to achieve the automatic and continuous evaporation.

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...

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Problems solved by technology

[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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