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Novel system for treating industrial wastewater by utilizing bypass low-temperature flue gas

A technology for low-temperature flue gas and industrial wastewater, applied in filtration treatment, sedimentation treatment, water/sewage treatment, etc., can solve problems such as system operation impact, nozzle blockage, flue dust accumulation, etc., and achieve low operating costs and a small number of equipment , the effect of small footprint

Inactive Publication Date: 2020-04-07
武汉正元环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, due to the unqualified pretreatment, the nozzles are seriously blocked, and at the same time, it will also cause serious dust accumulation and corrosion in the flue, which will affect the operation of the entire system.

Method used

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  • Novel system for treating industrial wastewater by utilizing bypass low-temperature flue gas

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0032] like figure 1As shown, a new type of system for treating industrial wastewater using bypass low-temperature flue gas is composed of an evaporation tower (1), an intermediate pool (11), and a regulating pool (4). The evaporation tower (1) is top-down The air outlet of the bypass flue (3), the mist eliminator (9), the sprinkler (8), the air inlet of the bypass flue (3), the sedimentation tank (5), the clear water tank (6), etc. The clear water pool (6) communicates with the sprinkler (8) through the booster pump (7) outside the tower; the clear water pool (6) is provided with a liquid level gauge to control the opening and closing of the solenoid valve (13); The inner ring of the clear water tank (6) is provided with a settling tank (5) connected to the regulating tank (4), the upper part is connected to the overflow of the clear water tan...

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Abstract

The invention discloses a novel system for treating industrial wastewater by utilizing bypass low-temperature flue gas. The system is composed of an evaporation tower, a middle water tank and a regulation tank. A gas outlet of a bypass flue, a demister, a sprayer, a gas inlet of the bypass flue, a sedimentation tank, a clean water tank and the like are arranged in the evaporation tower from top tobottom. The clean water tank is communicated with the sprayer through a booster pump outside the tower. The clean water tank is provided with a liquid level meter capable of controlling opening and closing of an electromagnetic valve. The bypass flue is arranged, boiler flue gas waste heat which is not utilized by a factory any more is introduced into the evaporation tower from behind a main flueand exchanges heat with vaporific industrial wastewater sprayed out of the sprayer, the industrial wastewater is evaporated, concentrated and crystallized, and therefore, the purpose of zero emissionof the industrial wastewater is achieved. The problem that the main flue is easy to scale and corrode by evaporation in the main flue to influence the operation of a main engine can be solved, and the system is simple and reliable.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a novel system for treating industrial wastewater by using bypass low-temperature flue gas. Background technique [0002] Industrial wastewater mainly comes from thermal power, petrochemical, coal mine, printing and dyeing, papermaking and other industries, and it has caused considerable damage to the environment. Among the "eight public hazard incidents" in the 20th century, the "Minamata Incident" and "Toyama Incident" were caused by industrial wastewater pollution Caused. Its composition is complex, and the processing process is long and difficult. The vast majority of industrial wastewater has removed most of the insoluble solids, organic matter and toxic and harmful substances through the previous physical and chemical pretreatment, biochemical treatment and advanced treatment processes, and finally discharged the total dissolved solids (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/20C02F101/12
CPCC02F1/001C02F1/16C02F1/66C02F9/00C02F2001/007C02F2101/12C02F2101/20
Inventor 周从波曹相画
Owner 武汉正元环境科技股份有限公司
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