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

[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%.