Forced circulation crystallization device for sodium chloride in flue gas desulfurization wastewater
A technology of forced circulation crystallization and desulfurization wastewater, which is applied in the field of fine chemical industry and sodium chloride forced circulation crystallization device, which can solve the problems of hardness ion scaling and other problems, and achieve the effects of less desulfurization wastewater, easy maintenance and lower costs
Pending Publication Date: 2019-04-12
湖州惠鹏达节能环保科技有限公司
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However, in the actual operation process, the hardness ions in the desulfurization wastewater are faced with the problem of scaling in the desalination system
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[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not used to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0020] Refer to figure 1 , figure 2 with image 3 , The present invention is a forced circulation crystallization device for sodium chloride in flue gas desulfurization wastewater, including an evaporation device 1 and a crystallization device 2. The evaporation device 1 includes a preheater 3, a deaerator 4, an evaporator 5 and a water tank 6, which preheat One side of the device 3 is connecte...
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The invention discloses a forced circulation crystallization device for sodium chloride in flue gas desulfurization wastewater. The device comprises an evaporation device and a crystallization device;the evaporation device comprises a preheater, a degassing device, an evaporator and a water tank, one side of the preheater is connected with the degassing device, the other side of the preheater isconnected with the water tank, and the degassing device is connected with the evaporator; the crystallization device comprises a crystallizer, a forced circulation heat exchanger, a circulating pump and a steam compressor, the evaporator is connected with the crystallizer, one side of the crystallizer is connected with the forced circulation heat exchanger, the circulating pump is arranged betweenthe crystallizer and the forced circulation heat exchanger, the crystallizer is connected with the steam compressor, one side of the steam compressor is connected with the evaporator, and the other side of the steam compressor is connected with the forced circulation heat exchanger. The cost can be reduced, pollution is avoided, the technological process is short, the automation degree is high, maintenance is facilitated, and the device is stable in operation, high in water quality fluctuation resistance, safe, reliable, capable of saving occupied area, high in recovery rate and high in quality.
Description
【Technical Field】 [0001] The invention relates to the technical field of fine chemicals, in particular to the technical field of a forced circulation crystallization device of sodium chloride in flue gas desulfurization wastewater. 【Background technique】 [0002] With the improvement of society's requirements for environmental protection, the state has put forward the requirements for the realization of ultra-low or even zero discharge of wastewater from thermal power plants. Therefore, as the terminal link of the cascade utilization of wastewater in the whole plant, zero discharge of desulfurization wastewater is the key to zero discharge of wastewater from thermal power plants. At present, the traditional "precipitation-flocculation-clarification" triple box process is generally used in coal-fired power generating units using flue gas desulfurization technology in my country. However, although the traditional triple box desulfurization wastewater treatment process can reduce t...
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IPC IPC(8): C02F1/04C02F103/18
CPCC02F1/04C02F2103/18
Inventor 胡晓惠孙振玉冯金海刘永刘振宇
Owner 湖州惠鹏达节能环保科技有限公司