MVR evaporative crystallization equipment for high-salinity wastewater in pharmaceutical industry

A high-salt wastewater, evaporation and crystallization technology, applied in the direction of water pollutants, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of low crystal purity, complex structure, no energy saving, etc.

Pending Publication Date: 2020-11-17
GUANGZHOU SCHIN TECH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a MVR evaporation and crystallization equipment for high-salt wastewater in the pharmaceutical industry to solve the problems of complex structure, no energy saving, and low crystallization purity in the above-mentioned background technology

Method used

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  • MVR evaporative crystallization equipment for high-salinity wastewater in pharmaceutical industry
  • MVR evaporative crystallization equipment for high-salinity wastewater in pharmaceutical industry
  • MVR evaporative crystallization equipment for high-salinity wastewater in pharmaceutical industry

Examples

Experimental program
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Effect test

Embodiment 1

[0025] see figure 1 , this embodiment provides a high-salt wastewater MVR evaporation and crystallization equipment in the pharmaceutical industry, including a medical wastewater storage room 1, a chemical sedimentation tank 2 is provided below the medical wastewater storage room 1, and the top of the chemical sedimentation tank 2 is drained The outlet of the chemical precipitation tank 2 is connected to a heat exchanger 3, and the impurities discharged from the slag discharge port below the chemical precipitation tank 2 are subjected to secondary treatment. The output of the heat exchanger 3 is connected to an evaporator 4, and the steam outlet of the evaporator 4 A separator 5 is connected, and the secondary steam outlet of the separator 5 is connected with a compressor 6, and the output of the compressor 6 is connected with a first heater 7 and a second heater 8 in sequence, and the second heater The heating temperature of 8 is higher than the heating temperature of the fir...

Embodiment 2

[0031] see figure 2 , this embodiment provides a high-salt wastewater MVR evaporation and crystallization equipment in the pharmaceutical industry. In order to further save energy, a hot gas outlet 25 is provided above the crystallization storage tank 20, and the hot gas outlet 25 is sent into the heat exchanger 3 through a pipeline. And it is connected with the output of the high-pressure pump 10, and the energy-saving effect is improved by sending the generated preheat back to the heat exchanger 3.

[0032] Further, in order to facilitate automatic temperature monitoring, a temperature detector 26 for detecting internal temperature is provided in the first heater 7 and the second heater 8, and the temperature is automatically detected by setting the temperature detector 26 .

Embodiment 3

[0034] see image 3 , the present embodiment provides a high-salt wastewater MVR evaporation and crystallization equipment in the pharmaceutical industry. Further, to improve the filtering effect, a second filter screen 27 is connected to the secondary steam outlet of the separator 5. By setting the second filter screen 27 Improve the filtering effect.

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Abstract

The invention discloses pharmaceutical industry high-salinity wastewater MVR evaporative crystallization equipment, which comprises a medical wastewater storage chamber; a chemical sedimentation tankis arranged below the medical wastewater storage chamber, a liquid outlet in the upper portion of the chemical sedimentation tank is connected with a heat exchanger, impurities discharged from a slagoutlet in the lower portion of the chemical sedimentation tank in the later period are subjected to secondary treatment; the output of the heat exchanger is connected with an evaporator, a steam outlet of the evaporator is connected with a separator, a secondary steam outlet of the separator is connected with a compressor, the output of the compressor is sequentially connected with a first heaterand a second heater, and the heating temperature of the second heater is higher than that of the first heater. The bottom output of the evaporator is connected with a heat exchanger through a high-pressure pump to heat original wastewater, and a primary filtering device is hinged to the upper portion of the medical wastewater storage chamber. According to the structure, an energy-saving effect isachieved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an MVR evaporation crystallization device for high-salt wastewater in the pharmaceutical industry. Background technique [0002] High-salt wastewater refers to wastewater with a total salt content of at least 1%. It mainly comes from chemical plants and the collection and processing of oil and natural gas. This wastewater contains a variety of substances (including salt, oil, organic heavy metals and radioactive substances). Salt wastewater is produced in a wide range of ways, and the amount of water is increasing year by year. The environmental impact of removing organic pollutants in saline wastewater is crucial. Biological treatment is used, and high-concentration salts have an inhibitory effect on microorganisms. Physicochemical treatment requires large investment and high operating costs, and it is difficult to achieve the expected purification effect. The u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/04C02F101/30C02F101/10C02F101/12C02F103/34
CPCC02F9/00C02F1/048C02F1/043C02F2101/006C02F2103/343C02F1/001C02F1/5281C02F2001/007C02F2101/30C02F2301/08C02F2101/12C02F2101/10C02F2101/101
Inventor 舒俭
Owner GUANGZHOU SCHIN TECH IND CO LTD
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