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System and method for treating high-salinity wastewater by utilizing high-temperature ash

A technology for high-salt wastewater and ash treatment, which is applied in the field of thermal power plant water treatment, can solve problems such as high cost and low efficiency, and achieve the effects of high equipment utilization rate, good evaporation effect, and low investment and operation and maintenance costs.

Pending Publication Date: 2020-03-13
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology

[0006] The purpose of the present invention is to provide a system and method for treating high-salt wastewater by using high-temperature ash, which solves the defects of high cost and low efficiency in the existing high-salt wastewater treatment

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  • System and method for treating high-salinity wastewater by utilizing high-temperature ash

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the present invention provides a method and system for treating high-salt wastewater using high-temperature ash, including a drum slag cooler 1, equipment support 2, slag inlet pipe 3, slag outlet pipe 4, high-salt wastewater storage tank 5, booster Pressure pump 6, first flow adjustment door 7, second flow adjustment door 8, cooling water inlet 9, cooling water outlet 10, safety valve 11, front dust extraction pipe 12, rear dust extraction pipe 13, slag inlet temperature measuring point 14 , slag discharge temperature measuring point 15 and cooling water return water temperature measuring point 16, the cooling water inlet 9 and the cooling water outlet 10 provided on the drum slag cooler 1 are respectively connected with the wastewater outlet and the wastewater inlet on the high-salt wastewater storage tank 5 , forming a co...

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Abstract

The invention provides a system for treating high-salinity wastewater by using high-temperature ash. The system comprises a roller slag cooler, a slag inlet pipe, a slag outlet pipe, a high-salinity wastewater storage tank, a first flow control valve, a second flow control valve, a cooling water inlet, a cooling water outlet, an inlet slag temperature measuring point, an outlet slag temperature measuring point and a returned cooling water temperature measuring point. Waste heat of high-temperature bottom slag is fully utilized, and a part of high-salinity wastewater (the treatment capacity isrelated to the slag discharge capacity) is treated without affecting the boiler efficiency and the boiler running condition, so the system is a beneficial supplement of a traditional zero-discharge process, and has the advantages of good evaporation effect, high device utilization rate and low investment, operation and maintenance cost.

Description

technical field [0001] The invention relates to the field of water treatment in thermal power plants, in particular to a system and method for treating high-salt wastewater with high-temperature ash. Background technique [0002] In recent years, the Chinese government has become more and more strict on the supervision of industrial enterprises' wastewater discharge. The "Water Ten Measures" promulgated in 2015 clearly pointed out that "comprehensive control of pollutant discharge" must be implemented, and water environmental protection has been raised to the national strategic level. Various provinces and cities have successively promulgated relevant regulations on the discharge of waste water up to the standard and zero discharge, and some thermal power plants have begun to carry out the transformation of zero discharge of waste water in the whole plant. [0003] Wastewater generated by thermal power plants mainly includes reverse osmosis concentrated water, circulating w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04
CPCC02F1/04
Inventor 孙晓阳郭涛李强吕海生刘冠杰钟犁韩立鹏
Owner HUANENG CLEAN ENERGY RES INST
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