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High-salinity wastewater freezing, concentrating and separating treatment device

A high-salt wastewater, freeze-concentration technology, applied in frozen water/sewage treatment, water/sludge/sewage treatment, grain treatment, etc.

Inactive Publication Date: 2021-04-09
NANJING DOULE REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention combines dynamic icing and crushing and separation technologies to solve the problem of high-salt wastewater treatment, realize high-efficiency continuous concentration of high-salt wastewater and rapid treatment of high-salt wastewater

Method used

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  • High-salinity wastewater freezing, concentrating and separating treatment device

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Effect test

Embodiment 1

[0022] Embodiment 1: as figure 1 As shown, a high-salt wastewater freeze concentration separation treatment device of the present invention includes a high-salt wastewater circulation system 100, a freezing system 200 for treating high-salt wastewater, a crushing system 300 for crushing the product of the freezing system 200, The separation system 400 for the solid-liquid separation of the product sent out by the crushing system 300, the refrigeration system 500 for the refrigeration of the freezing system 200, and the frosting system 600 for the frosting of the freezing system 200; the refrigeration system 500 includes a compressor 501, and The condenser 502 communicated with the compressor 501, the evaporator 503 communicated with the refrigerant outlet of the condenser 502, and the expansion valve 504 arranged between the condenser 502 and the evaporator 503; the brine inlet of the freezing system 200 and the evaporator The brine outlet of 503 is connected, and the brine ou...

Embodiment 2

[0028] Embodiment 2: Utilize the high-salt wastewater freeze concentration separation treatment device of embodiment 1 to carry out high-salt wastewater treatment, the treatment steps are as follows: include the following steps:

[0029] Step 1: The high-salt wastewater is sent to the freezing system 200, and the high-salt wastewater is frozen in the freezing system 200 to realize preliminary separation of brine, and the unfrozen high-salt wastewater sent to the freezing system 200 is circulated through the high-salt wastewater The system 100 is sent to the freezing system 200 again, and the refrigeration system 500 maintains the cold field of the freezing system 200 through the circulation of the brine.

[0030] Step 2: Turn off the refrigeration system 500, turn on the frost-holding system 600, defrost and defrost the ice in the icing system 200, and the products sent from the icing system 200 are crushed by the crushing system 300, and the crushed products are sent to The s...

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Abstract

The invention discloses a freezing, concentrating and separating treatment device for high-salinity wastewater. The device comprises a high-salinity wastewater circulation system, an icing system for treating high-salinity wastewater, a crushing system for crushing products of the icing system, a separation system for solid-liquid separation of products sent out by the crushing system, a refrigeration system for refrigeration of the icing system and a frost containing system for frost containing of the icing system. The refrigeration system comprises a compressor, a condenser communicated with the compressor, an evaporator communicated with a refrigerant outlet of the condenser and an expansion valve arranged between the condenser and the evaporator. A secondary refrigerant inlet of the icing system is communicated with a secondary refrigerant outlet of the evaporator, and a secondary refrigerant outlet of the icing system is communicated with a secondary refrigerant inlet of the evaporator. By combining dynamic icing and crushing separation technologies, the problem of high-salinity wastewater treatment is solved, and efficient and continuous concentration of high-salinity wastewater and rapid treatment of high-salinity wastewater are realized.

Description

technical field [0001] The invention relates to a waste water treatment device, in particular to a high-salt waste water freeze concentration separation treatment device. Background technique [0002] High-salt wastewater refers to wastewater containing organic matter and at least a mass fraction of total dissolved solids ≥ 3.5%. If these high-salt, high-organic waste water is discharged directly without treatment, it is bound to cause great harm to aquatic organisms, drinking water, and industrial and agricultural production water. At present, the treatment methods of high-salt wastewater mainly include physical, chemical and biochemical methods. In actual industrial application, physical and chemical methods are expensive and may cause secondary pollution. In the research on the treatment of high-salinity wastewater by physical and chemical methods, the high-salinity wastewater is mainly treated by reverse osmosis, ion exchange, electrolysis and other methods, but the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/22B02C21/00C02F101/10C02F101/30
CPCB02C21/00C02F1/22C02F2101/10C02F2101/30C02F2303/10
Inventor 薛文波张剑侠张贵德赵向雨孙罡张林李为敏周志军张杰刘荣霖李鑫
Owner NANJING DOULE REFRIGERATION EQUIP
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