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Concentration crystallization device for carnallite waste water

A technology for concentrating crystallization and waste water, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as increased burden on enterprises, and achieve energy saving and cost reduction effects

Inactive Publication Date: 2015-11-11
深圳市捷晶科技股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in recent years, with the rapid rise of steam prices, the energy consumption of this evaporation process has also increased the burden on the majority of enterprises.

Method used

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  • Concentration crystallization device for carnallite waste water

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Embodiment Construction

[0017] Such as figure 1 As shown, the concentrated crystallization equipment of miscellaneous salt wastewater according to the present invention includes a preheating device, an evaporation device and a crystallization separation device;

[0018] The preheating device includes a material buffer tank 1 and a preheater 3, the material buffer tank 1 and the preheater 3 are connected through a section of feed pipe, and a feed pump 2 is installed on the feed pipe;

[0019] The evaporator includes a main heat exchanger 4, a separator 5, a steam compressor 6 and a cooling water tank 8; the feed end of the main heat exchanger 4 is connected to the discharge end of the preheater 3; the separator 5 and the The main heat exchanger 4 is connected to form a closed loop. A circulation pump 7 is arranged on the closed loop. The concentrated liquid separated by the separator 5 enters the main heat exchanger 4 through the circulation pump 7 to evaporate and then enters the separator 5 The con...

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Abstract

The invention discloses a concentration crystallization device for carnallite waste water. The concentration crystallization device comprises a preheating device, an evaporation device and a crystallization separation device. The concentration crystallization device for carnallite waste water replaces a traditional steam heating evaporation crystallization mode. Secondary steam discharged by a cooling crystallizer is compressed through a compressor, the compressed secondary steam is used as heating steam, circulation of the device is achieved by setting a loop, no steam needs to be generated for heating, no condensation device is needed, the good evaporation effect can be achieved only through a small quantity of electric energy, and thus a new approach is provided to achieve the purposes that the cost is lowered, and energy is saved in the carnallite waste water solution treatment process.

Description

technical field [0001] The invention relates to the technical field of concentration and crystallization of solutions, in particular to equipment for concentration and crystallization of miscellaneous salt wastewater. Background technique [0002] Industrial wastewater containing miscellaneous salts has seriously polluted the environment, and the treatment of industrial wastewater is a big problem. The evaporation and concentration process is adopted, the steam consumption is high, and the miscellaneous salt wastewater solution is very corrosive to the material. Based on this, the evaporation process is used for evaporation, and the equipment material is selected from suitable corrosion-resistant materials. In the common process, the evaporator form of multi-effect evaporation is more common. However, in recent years, with the rapid rise of steam prices, the energy consumption of this evaporation process has also increased the burden on the majority of enterprises. Conte...

Claims

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Application Information

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IPC IPC(8): C02F9/10
Inventor 代超
Owner 深圳市捷晶科技股份有限公司