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Demister flushing water recycling system and method

A technology of mist eliminator and water circulation, which is applied to chemical instruments and methods, cleaning methods using liquids, separation methods, etc. The effect of water balance

Pending Publication Date: 2021-09-21
XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Desulfurization absorption towers are generally equipped with high-efficiency roof-mounted mist eliminators, but after the ultra-low emission transformation, it is difficult to ensure the water balance of the desulfurization system, which can only reduce the water consumption of the desulfurization system. The largest equipment The frequency of flushing of the demister will lead to frequent blockage and collapse of the demister, which seriously threatens the safe operation of the unit

Method used

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  • Demister flushing water recycling system and method
  • Demister flushing water recycling system and method
  • Demister flushing water recycling system and method

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Effect test

Embodiment 1

[0045] refer to figure 2 , the first layer of mist eliminator 20 and the third layer of mist eliminator 20 are roof structure, and arranged on the support beam 19 of the bottom layer of mist eliminator, the second layer of mist eliminator 20 are inverted roof structure, and The three layers of demisters 20 are jointly arranged on the upper support beam 19 of the demister;

Embodiment 2

[0047] refer to image 3 , the three-layer mist eliminators 20 are all roof-ridge structures, respectively arranged on the three-layer mist eliminator support beams 19;

[0048] Main features of the present invention are:

[0049] The present invention utilizes the demister flushing water collection tank 4 to collect the demister 20 flushing water to the clarified water tank 2, the clarified clear water circulates to flush the demister 20, and the turbid water at the bottom of the clarified water tank 2 flushes the desulfurization system pipeline, pump or discharges to The desulfurization island drainage pit 13 achieves the purpose of recycling the flushing water of the demister 20 in the simplest and feasible way, solves the problem of water balance in the desulfurization system of most units, and obtains the following effects at the same time:

[0050] When the mist eliminator 20 is flushed intermittently, the present invention can increase the frequency of flushing the mist ...

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Abstract

The invention discloses a demister flushing water recycling system and method, an outlet of a demister flushing water tank is communicated with an inlet of a demister flushing water pump, and an outlet of a recycling water tank is communicated with an inlet of a recycling water pump; an outlet of the recycling water pump and an outlet of the demister flushing water pump are combined through a pipeline and then are communicated with one end of a clarification water tank flushing water valve and the demister flushing water pipe, the other end of the clarification water tank flushing water valve is communicated with the clarification water tank, and a top opening of the demister flushing water collecting water tank right faces the lower end of the demister. A bottom outlet of the demister washing water collecting water tank is communicated with one end of a collecting water tank drainage pipe, and the other end of the collecting water tank drainage pipe is inserted into the clarification water tank; a clarification water tank cofferdam overflow groove is formed in the top of the clarification water tank, and an outlet of the clarification water tank cofferdam overflow groove is communicated with the recycling water tank, the system and the method can realize cyclic utilization of the demister flushing water in the absorption tower, and the water consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of water saving, and relates to a system and method for recycling flushing water of a mist eliminator. Background technique [0002] Desulfurization absorption towers are generally equipped with high-efficiency roof-mounted demisters. However, after ultra-low emission transformation, it is difficult to ensure the water balance of the desulfurization system. We can only reduce the flushing frequency of the demister, which consumes the most water in the desulfurization system, which will cause blockage and collapse of the demister. Such situations occur frequently, seriously threatening the safe operation of the unit. Therefore, it is necessary to develop the flushing water recycling technology of the demister in the absorption tower, increase the flushing frequency of the demister, and even flush continuously, so as to completely solve the water balance problem of the desulfurization system, so that the demis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B08B3/02B01D45/08
CPCB01D53/18B01D53/1481B08B3/02B01D45/08Y02A20/30
Inventor 王少亮何胜石伟栋雷鸣牛拥军胡俊余福胜杨博王彪王定帮郭浩然石振晶薛国栋武吉福赵彩虹李斌张晨
Owner XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD
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