Crystallizing device for chemical solution crystallization

Abstract

The invention provides a crystallizing device for chemical solution crystallization. The crystallizing device comprises a quick condenser, a solution inlet and a solution disperse hole, wherein a group of solution gathering cavities are fixedly connected with the upper side of the inside of the quick condenser, and a group of heating elements are fixedly connected with the inside of the quick condenser; the solution outlet is communicated with the inlet of a solution heater; a solution heat inlet is communicated with the outlet of the solution heater; and a crystallizer depressing suction portand a condenser depressing suction port are both communicated with a vacuum pump. According to the crystallizing device, a steam heat pipe having a serpentine section is provided, so that the heatingarea of a solution is increased, the concentration effect is improved, the concentration efficiency is improved, and quick concentration can be realized; the solution is heated by adopting steam, energy waste caused by overheating of the solution can be prevented, energy can be saved, and cost can be reduced; and the pressure in a container can be reduced by adopting a negative pressure structure, the evaporation efficiency is improved, and quick crystallization is realized.

Description

technical field [0001] The invention belongs to the technical field of chemical industry equipment, and more specifically relates to a crystallization device for crystallization of chemical solution. Background technique [0002] The crystallization device refers to the device for crystallization by evaporating part of the solvent to achieve the supersaturation of the solution. Generally, the crystallization device adopts various types such as internal circulation type, external circulation type, evaporation type, and fluidized bed type. [0003] For example, application number: CN201120375006.9 The present invention belongs to the technical field of flue gas desulfurization, and particularly relates to ammonia-ammonium sulfite method flue gas desulfurization technical equipment, specifically a cooling crystallizer for ammonium sulfite solution, including a crystallization tank The body, the agitator and the interface connecting the conveying pipeline are characterized in th...

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Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides a crystallization device for chemical solution crystallization, to solve the crystallization operation in a normal pressure environment, which is not conducive to the evaporation of water, and the production efficiency needs to be improved. At the same time, the solution needs to be heated to a higher temperature to achieve Crystallization is a waste of resources, which is not conducive to energy saving and emission reduction. By using ordinary evaporating tubes for heating, during concentration, when the solution flows between the upper and lower evaporating tubes, water flow will gather, which is not conducive to the problem of heat exchange.

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