High-efficiency energy-saving triple-effect forced circulation evaporation system

Abstract

The invention discloses a high-efficiency energy-saving triple-effect forced circulation evaporation system, and belongs to the field of evaporation systems. According to the triple-effect forced circulation evaporation system, firstly, a circulation flash evaporation device is used for carrying out flash evaporation treatment on a raw material liquid, organic matter in the raw material liquid is separated out, then, triple-effect forced circulation evaporation is carried out on the raw material liquid, secondary steam of a front-effect separator is used as a heat source of the rear-effect heater, steam consumption is reduced, the raw material liquid can be concentrated to a set concentration, then the concentrated liquid is crystallized through a crystallization device, continuous centrifugal operation of the centrifugal machine can be realized through optimal design of the crystallization device and utilization of a group of thickeners and the centrifugal machine, and more raw material liquid treatment can be completed by using less equipment, so that the equipment in the whole system is more simplified, the equipment investment cost is reduced, the raw material liquid treatment capacity in unit time can reach 9000 kg / h, the working efficiency of the triple-effect circulation evaporation system is greatly improved, the operation energy consumption of the system is effectively reduced, and the energy can be effectively saved by 30%.

Description

Technical field [0001] The present invention relates to an evaporation system, and more particularly to an efficient energy-saving three-efficiency coincidence evaporation system. Background technique [0002] In pharmaceutical, chemical, petrochemical, food and daily production, and industrial wastewater recovery process, evaporation is a very important process, which is a very important part of the production process, which is already in food, oil, chemical and other There is a wide range of applications in the relevant industries. However, China's medical, chemical, and petrochemical, the overall technical level of equipment has a gap compared to foreign countries. Basically, in introduction, imitation of foreign technology, has not fully grasped intelligent, efficient energy-saving evaporative equipment manufacturing technology. [0003] Evaporation treatment materials (such as industrial wastewater) typically contain various volatile organic matter, evaporating fluid solvent...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of the existing three-effect circulation evaporation system, such as bloated and complex equipment layout, high input cost, long material and steam flow stroke, large steam consumption and low work efficiency, and provide a high-efficiency energy-saving three-effect forced circulation The evaporation system adopts the technical scheme of the present invention. Firstly, the raw material liquid is flashed by a circulating flash evaporation device to separate the organic matter in the raw material liquid, and then the raw material liquid is subjected to three-effect forced circulation evaporation, and the pre-effect separator is used to The secondary steam is used as the heat source of the after-effect heater, which saves steam consumption and enables the raw material liquid to be concentrated to the set concentration, and then the concentrated liquid is crystallized through the crystallization device. Through the optimized design of the crystallization device, a set of thick The centrifuge can realize the continuous centrifugation operation of the centrifuge, and use less equipment to complete more raw material liquid treatment, which makes the equipment in the whole system more simplified, reduces the equipment investment cost, and the raw material liquid processing capacity per unit time can be reduced. Up to 9000kg / h, which greatly improves the working efficiency of the three-effect circulation evaporation system, and effectively reduces the energy consumption of the system operation, which can effectively save energy by 30%.

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