CN105540898A - Ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system - Google Patents

Ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system Download PDF

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Publication number
CN105540898A
CN105540898A CN201610071305.0A CN201610071305A CN105540898A CN 105540898 A CN105540898 A CN 105540898A CN 201610071305 A CN201610071305 A CN 201610071305A CN 105540898 A CN105540898 A CN 105540898A
Authority
CN
China
Prior art keywords
desulfurizing
wastewater
desulfurization wastewater
type electric
wet type
Prior art date
Application number
CN201610071305.0A
Other languages
Chinese (zh)
Inventor
张亮
戴尚访
陈林业
姜海靓
陈珑
陈勇哲
应剑锋
倪磊楚
Original Assignee
浙江天地环保工程有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江天地环保工程有限公司 filed Critical 浙江天地环保工程有限公司
Priority to CN201610071305.0A priority Critical patent/CN105540898A/en
Publication of CN105540898A publication Critical patent/CN105540898A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents

Abstract

The invention relates to an ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system, which comprises a wet type electric high-efficiency clarifier, a sludge pump and a desulfurizing wastewater pool, wherein a wastewater concentrated liquid at the lower part of the wet type electric high-efficiency clarifier is connected with the desulfurizing wastewater pool through the sludge pump; overflow at the upper part of the wet type electric high-efficiency clarifier is connected with a water inlet of a demister water tank; a water outlet of the demister water tank is connected with a demister of the desulfurizing absorbing tower through a demister water pump; a gypsum discharge pump of the desulfurizing absorbing tower is connected with the desulfurizing wastewater pool through a desulfurizing wastewater cyclone station, and the desulfurizing wastewater pool is sequentially connected with a desulfurizing wastewater triple box and the desulfurizing wastewater clarifier. The ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system has the beneficial effects that 1, the stability is good, and the safety is high; 2, the overhigh liquid level of the desulfurizing absorbing tower is prevented; 3, the technological process is simple, and the investment, operation and maintenance cost is low.

Description

A kind of minimum discharge wet-esp Waste water concentrating liquid treating system

Technical field

Patent of the present invention relates to Waste water concentrating liquid treating system, particularly relates to a kind of minimum discharge wet-esp Waste water concentrating liquid treating system.

Background technology

At present, for meeting stricter environmental requirement, many coal-burning power plants implement minimum discharge improvement project, set up Wet-type electric dust removal system (hereinafter referred to as wet electricity).Wet electricity needs a large amount of wash-down water, and after this partial flushing water washes away pole plate, flow out from ash bucket, component loops utilizes, and part is outer to be lined up as wet electric waste water.Wet electric waste water is delivered to wet electric high-efficiency clarifier by wet-pit and is recycled.Top clear water after clarification by tube overflow to mist eliminator flushing water tank, and through mist eliminator flushing water pump deliver to desulfuration absorbing tower for absorption tower demisting device cleaning, bottom clarification concentrated solution deliver to desulfuration absorbing tower stock tank for absorption tower moisturizing through sludge pump.Bottom clarification concentrated solution contains more fine dust particles, if for absorption tower moisturizing, certainly will impact the reaction of sweetening agent in absorption tower, easily block filter cloth simultaneously, increase the burden of vacuum belt machine, affect desulphurization system safe operation.Meanwhile, the extra waste water that increases, to desulfuration absorbing tower, caused Heavy Duty to desulfuration absorbing tower water balance.

Summary of the invention

The object of the invention is to overcome prior art deficiency, provide a kind of rational in infrastructure, reduce wet electric Waste water concentrating liquid to the impact of desulphurization system, ensure the wet electric Waste water concentrating liquid treating system of system safety operation.

For achieving the above object, present invention employs following technical scheme:

Minimum discharge wet-esp Waste water concentrating liquid treating system, comprise wet electric high-efficiency clarifier, sludge pump and desulfurization wastewater pond, the Waste water concentrating liquid of wet electric high-efficiency clarifier bottom is connected to desulfurization wastewater pond by sludge pump, wet electric high-efficiency clarifier top overflow is connected to the water-in of mist eliminator water tank, the water outlet of mist eliminator water tank is connected to the mist eliminator of desulfuration absorbing tower by mist eliminator water pump, the gypsum overboard pump of desulfuration absorbing tower is connected to desulfurization wastewater pond by desulfurization wastewater rotational flow station, desulfurization wastewater pond connects desulfurization wastewater three header and desulfurization wastewater settler successively.

The invention has the beneficial effects as follows:

1, good stability, security is high: wet electric Waste water concentrating liquid directly delivers to desulfurization wastewater treatment system, reduces the impact of the reaction on sweetening agent in absorption tower, to prevent in concentrated solution fine particle to the blocking of filter cloth simultaneously, reduce the burden of vacuum belt machine, improve the security of system cloud gray model.

2, prevent desulfuration absorbing tower liquid level too high: after minimum discharge transformation, because of setting up low low temp. electric dedusting, cigarette temperature drop is low causes absorption tower steam output minimizing, and absorption tower water liquid level easily causes too high and overflow.Wet electric Waste water concentrating liquid is directly outer drains into desulfurization wastewater treatment system, reduces absorbing tower liquid-level excess pressure.

3, technical process is simple, investment and O&M cost low: this programme increase only the connecting pipeline of sludge pump and desulfurization wastewater treatment system and related valve etc., and system process is simple.System major equipment, material are conventional products, and be easy to buying, cost of investment is low.Pipeline is simple, and this system can be included in desulphurization system unified management and safeguard, O&M cost is low.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Description of reference numerals: wet electric high-efficiency clarifier 1, sludge pump 2, desulfurization wastewater pond 3, desulfurization wastewater three header 4, desulfurization wastewater settler 5, desulfuration absorbing tower 6, desulfurization wastewater rotational flow station 7, mist eliminator water tank 8, mist eliminator water pump 9.

Embodiment

Below in conjunction with embodiment, the present invention is described further.The explanation of following embodiment just understands the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.

As shown in Figure 1, the minimum discharge wet-esp Waste water concentrating liquid treating system of the present embodiment, comprise wet electric high-efficiency clarifier 1, sludge pump 2 and desulfurization wastewater pond 3, the Waste water concentrating liquid of wet electric high-efficiency clarifier 1 bottom is connected to desulfurization wastewater pond 3 by sludge pump 2, wet electric high-efficiency clarifier 1 top overflow is connected to the water-in of mist eliminator water tank 8, the water outlet of mist eliminator water tank 8 is connected to the mist eliminator of desulfuration absorbing tower 6 by mist eliminator water pump 9, the gypsum overboard pump of desulfuration absorbing tower 6 is connected to desulfurization wastewater pond 3 by desulfurization wastewater rotational flow station 7, desulfurization wastewater pond 3 connects desulfurization wastewater three header 4 and desulfurization wastewater settler 5 successively.

Wet electric Waste water concentrating liquid treating system of the present invention, the bottom Waste water concentrating liquid of wet electric high-efficiency clarifier 1 delivers to desulfurization wastewater pond 3 by sludge pump 2, the waste water of discharging with desulfuration absorbing tower 6 mixes, outer row is processed through desulfurization wastewater three header 4, desulfurization wastewater settler 5, thus reduce Waste water concentrating liquid to the impact of desulphurization system, ensure system safety operation.

Claims (1)

1. a minimum discharge wet-esp Waste water concentrating liquid treating system, it is characterized in that: comprise wet electric high-efficiency clarifier (1), sludge pump (2) and desulfurization wastewater pond (3), the Waste water concentrating liquid of wet electric high-efficiency clarifier (1) bottom is connected to desulfurization wastewater pond (3) by sludge pump (2), wet electric high-efficiency clarifier (1) top overflow is connected to the water-in of mist eliminator water tank (8), the water outlet of mist eliminator water tank (8) is connected to the mist eliminator of desulfuration absorbing tower (6) by mist eliminator water pump (9), the gypsum overboard pump of desulfuration absorbing tower (6) is connected to desulfurization wastewater pond (3) by desulfurization wastewater rotational flow station (7), desulfurization wastewater pond (3) connects desulfurization wastewater three header (4) and desulfurization wastewater settler (5) successively.
CN201610071305.0A 2016-02-01 2016-02-01 Ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system CN105540898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610071305.0A CN105540898A (en) 2016-02-01 2016-02-01 Ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610071305.0A CN105540898A (en) 2016-02-01 2016-02-01 Ultra-low drainage wet type electric dedusting wastewater concentrated liquid treatment system

Publications (1)

Publication Number Publication Date
CN105540898A true CN105540898A (en) 2016-05-04

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Country Status (1)

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CN (1) CN105540898A (en)

Citations (13)

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US3964886A (en) * 1974-10-29 1976-06-22 Baltimore Aircoil Company, Inc. Gas scrubbing apparatus
CN101168118A (en) * 2006-10-25 2008-04-30 宝山钢铁股份有限公司 Sintering smoke wet method sulphur removing and dust removing technology
CN202170277U (en) * 2011-08-24 2012-03-21 河南电力试验研究院 Improved desulfurization wastewater treatment system
CN102716639A (en) * 2012-07-20 2012-10-10 中电投远达环保工程有限公司 High-efficiency wet-type electric dust removal and desulfuration system and process
CN104437068A (en) * 2014-11-11 2015-03-25 南京中电环保科技有限公司 Efficient wet desulfurization dust removal system and method
CN104549761A (en) * 2014-12-24 2015-04-29 浙江省电力设计院 Cyclic utilization system of washing water of wet electric dust collector
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CN105057101A (en) * 2015-08-17 2015-11-18 中国重型机械研究院股份公司 Cylindrical vertical wet-type explosion-proof and voltage-resistant electric precipitator
CN105169872A (en) * 2015-10-09 2015-12-23 东南大学 Device and method for flue gas cleaning by combining impact agglomeration wet dust collector with wet electric dust collector
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Address after: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building)

Applicant after: Zhejiang Tiandi Environmental Protection Technology Co., Ltd.

Address before: 310003 Hangzhou City, Fung Fung Road, No. Guoxin real estate building, building 9, building 108

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Application publication date: 20160504

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