CN107596844A - A kind of flue gas cleaning system - Google Patents

A kind of flue gas cleaning system Download PDF

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Publication number
CN107596844A
CN107596844A CN201711072677.6A CN201711072677A CN107596844A CN 107596844 A CN107596844 A CN 107596844A CN 201711072677 A CN201711072677 A CN 201711072677A CN 107596844 A CN107596844 A CN 107596844A
Authority
CN
China
Prior art keywords
scrubbing tower
furnace gas
circulating slot
condenser
tower
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201711072677.6A
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Chinese (zh)
Inventor
潘海波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin City Electric Ltd By Share Ltd Pankyo
Original Assignee
Tianjin City Electric Ltd By Share Ltd Pankyo
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 Tianjin City Electric Ltd By Share Ltd Pankyo filed Critical Tianjin City Electric Ltd By Share Ltd Pankyo
Priority to CN201711072677.6A priority Critical patent/CN107596844A/en
Publication of CN107596844A publication Critical patent/CN107596844A/en
Pending legal-status Critical Current

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Abstract

A kind of flue gas cleaning system, it is characterised in that including scrubbing tower, condenser, demister, drying tower, circulating slot, settling tank, the scrubbing tower includes the first scrubbing tower and the second scrubbing tower;The circulating slot includes scrubbing tower circulating slot a, scrubbing tower circulating slot b, condenser acid storage tank;The furnace gas for needing to purify passes through the first scrubbing tower preliminary purification, furnace gas after primary wash enters the second scrubbing tower secondary washing, the furnace gas export of the double purification tower connects the condenser, furnace gas continues through pipeline and enters the demister after the condensed pipework condensation of furnace gas, after demister demisting, finally dried again through drying tower.

Description

A kind of flue gas cleaning system
Technical field
The present invention relates to cleaning system, and in particular to flue gas cleaning system.
Background technology
Contain substantial amounts of flue dust and harmful substance in furnace gas, such as without processing be directly discharged in air that air can be made Into serious pollution.Current flue gas cleaning flow, wet method and the major class of dry method two are generally divided into, using dry cleaning furnace gas The occupation of land of mode purifier is huge, and harmful substance is not easy to remove, and wet method is widely used at present.Wet method is divided because cleaning solution is different For two kinds of pickling and washing, washing process produces a large amount of waste water, is also further processed.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of flue gas cleaning device with double scrubbing towers.
Technical scheme is used by the present invention solves above-mentioned technical problem:A kind of flue gas cleaning system, it is characterised in that Including scrubbing tower, condenser, demister, drying tower, circulating slot, settling tank, the scrubbing tower includes the first scrubbing tower and second Scrubbing tower;The circulating slot includes scrubbing tower circulating slot a, scrubbing tower circulating slot b, condenser acid storage tank;Need the furnace gas purified By the first scrubbing tower preliminary purification, the furnace gas after primary wash enters the second scrubbing tower secondary washing, the double purification The furnace gas export of tower connects the condenser, and furnace gas continues through pipeline and enters the demister after the condensed pipework condensation of furnace gas, After demister demisting, finally dried again through drying tower.
Further, first scrubbing tower includes:Baffle plate, orifice plate, furnace gas import, atomizer, cleaning solution import, the stove Gas import is arranged on lower section on the left of first scrubbing tower, and furnace gas export is arranged on the first washing column overhead, the atomization Device is arranged on the first scrubbing tower right side central, and the acid inlet is arranged on the first scrubbing tower right upper portion, the gear Plate and orifice plate form scrubber layer, totally three layers of the scrubber layer, are distributed in the middle part of first scrubbing tower, are provided with the atomizer Nozzle.
Further, the cleaning solution import of first scrubbing tower and cleaning solution outlet are all connected with the scrubbing tower circulating slot a, The scrubbing tower circulating slot a connections settling tank.
Further, second scrubbing tower includes:Furnace gas import, furnace gas export, atomizer, cleaning solution outlet.The stove Gas import is located at the second scrubbing tower left lower, and the furnace gas export is located at the second washing column overhead, described Atomizer is arranged in the middle part of second scrubbing tower, and the cleaning solution outlet is arranged on the second scrubbing tower lower right side,
Further, the second scrubbing tower atomizer is connected through feed tube with the scrubbing tower circulating slot b, and described second washes The cleaning solution outlet for washing tower is connected through liquid back pipe with the scrubbing tower circulating slot b.
Further, the condenser includes furnace gas import, condenser pipe, condensate outlet, and the furnace gas import is arranged on institute Condenser top is stated, the condensate outlet is connected with the condenser acid storage tank by liquid back pipe, passed through in the condenser pipe Condensed water.
Further, the condenser acid storage tank connects the scrubbing tower circulating slot b, the scrubbing tower circulating slot b connections institute State scrubbing tower circulating slot a, the scrubbing tower circulating slot a connections settling tank, the gas entered in settling tank is through gas purification Discharged after device.
Further, between first scrubbing tower and the scrubbing tower circulating slot a can independent loops, second scrubbing tower Between the scrubbing tower circulating slot b can independent loops, can independent loops between the condenser and the condenser acid storage tank. The advantage of the invention is that:
1st, the present invention sets dual washing tower, and the furnace gas solid matter almost all after double purified is removed.
2nd, the present invention sets condenser to be discharged again after furnace gas temperature is reduced, and is more favorable for environmental protection.
3rd, this reality invention sets settling tank, and all cleaning solutions are recovered into settling tank and focused on so that mud sinks Drop is more thorough, and cleaning solution is collected more abundant.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the system flow chart of the present invention.
Wherein:
1st, the first scrubbing tower;11st, baffle plate;12nd, orifice plate;13rd, furnace gas import;
14th, atomizer;15th, cleaning solution entrance;16th, scrubbing tower circulating slot a;2nd, the second scrubbing tower;
21st, scrubbing tower circulating slot b;3rd, condenser;31st, condenser pipe;32nd, condenser acid storage tank
4th, demister;5th, drying tower;6th, settling tank;61st, sewage draining exit;7th, gas purifier;
8th, water pump;
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
A kind of flue gas cleaning system as shown in Figure 1, it is characterised in that including scrubbing tower, condenser 3, demister, drying Tower 5, circulating slot, settling tank 6, the scrubbing tower include the first scrubbing tower 1 and the second scrubbing tower 2;The circulating slot includes washing Tower circulating slot a16, scrubbing tower circulating slot b21, the acid storage tank of condenser 3;It is tentatively net that the furnace gas for needing to purify passes through the first scrubbing tower 1 Change, the furnace gas after primary wash enters the secondary washing of the second scrubbing tower 2, described in the furnace gas export of the double purification tower connects Condenser 3, furnace gas continues through pipeline and enters the demister after the condensed pipe 31 of furnace gas condenses, after demister demisting, most Dried again through drying tower 5 afterwards.
First scrubbing tower 1 includes:Baffle plate 11, orifice plate 12, furnace gas import 13, atomizer 14, cleaning solution import, the furnace gas Import 13 is arranged on the left side of the first scrubbing tower 1 lower section, and furnace gas export is arranged on the tower top of the first scrubbing tower 1, the mist To change device 14 and be arranged on the right side central of the first scrubbing tower 1, the acid inlet is arranged on the right upper portion of the first scrubbing tower 1, The baffle plate 11 and orifice plate 12 form scrubber layer, totally three layers of the scrubber layer, are distributed in the middle part of the first scrubbing tower 1, described Nozzle is provided with atomizer 14.
The cleaning solution import of first scrubbing tower 1 and cleaning solution outlet are all connected with the scrubbing tower circulating slot a16, the washing The tower circulating slot a16 connections settling tank 6.
Second scrubbing tower 2 includes:Furnace gas import 13, furnace gas export, atomizer 14, cleaning solution outlet.The furnace gas import 13 are located at the left lower of the second scrubbing tower 2, and the furnace gas export is located at the tower top of the second scrubbing tower 2, the mist To change device 14 and be arranged on the middle part of the second scrubbing tower 2, the cleaning solution outlet is arranged on the lower right side of the second scrubbing tower 2,
The atomizer 14 of second scrubbing tower 2 is connected through feed tube with the scrubbing tower circulating slot b21, second scrubbing tower 2 Cleaning solution outlet be connected through liquid back pipe with the scrubbing tower circulating slot b21.
Condenser 3 includes furnace gas import 13, condenser pipe 31, condensate outlet, and the furnace gas import 13 is arranged on described cold The top of condenser 3, the condensate outlet are connected with the acid storage tank of condenser 3 by liquid back pipe, passed through in the condenser pipe 31 Condensed water.
The acid storage tank of condenser 3 connects the scrubbing tower circulating slot b21, the scrubbing tower circulating slot b21 connections washing Tower circulating slot a16, the scrubbing tower circulating slot a16 connections settling tank 6, the gas entered in settling tank 6 is through gas purification Discharged after device 7.
Between first scrubbing tower 1 and the scrubbing tower circulating slot a16 can independent loops, second scrubbing tower 2 and described Between scrubbing tower circulating slot b21 can independent loops, can independent loops between condenser 3 and the condenser 3 acid storage tank.
Working method:
Pending furnace gas enters the central space of the first scrubbing tower 1 from the furnace gas import 13 of bottom, with the acid sprayed Liquid and the cleaning solution counter current contacting flow down from sieve plate and orifice plate 12, furnace gas humidifying cooling, and washed away most of mine dust.This is empty Between commonly referred to as humidification washing section.Furnace gas cools down washing section after humidification washs, into top, sequentially passes through the formation of orifice plate 12 Scrubber layer, the top baffle plate 11 of orifice plate 12 is hit, is directly contacted with cold acid and is fully washed and cooled.Typically pass through three pieces of sieve plates Afterwards, furnace gas temperature is lowered, and the impurity such as mine dust is washed removing substantially, and part acid mist is captured, and remaining takes tower out of by furnace gas.
The acid mist being carried over from the first scrubbing tower 1 enters the second scrubbing tower 2, and the atomizer 14 in the second scrubbing tower 2 continues Spraying, increases the drop of acid mist, solid particle is as the nuclei of condensation so that the drop with solid particle flows into bottom of towe, carries out secondary Purification.Remaining furnace gas is carried over tower.
Furnace gas enters shell-and-tube indirect condenser 3, and the water cooling that is cooled is to less than 40 DEG C, and contained water vapor condensation is in wall Acid mist diameter is set further to increase.So far furnace gas drops to less than 40 DEG C by 330 DEG C, and complete sensible heat is taken away by cooling water outside pipe.Stove Gas enters electrostatic precipitator, and remaining denier mine dust is almost completely wiped, and eventually enters into drying tower 5 and dries.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (8)

1. a kind of flue gas cleaning system, it is characterised in that including scrubbing tower, condenser, demister, drying tower, circulating slot, sedimentation Pond, the scrubbing tower include the first scrubbing tower and the second scrubbing tower;The circulating slot includes scrubbing tower circulating slot a, scrubbing tower follows Annular groove b, condenser acid storage tank;The furnace gas for needing to purify passes through the first scrubbing tower preliminary purification, and the furnace gas after primary wash enters Enter the second scrubbing tower secondary washing, the furnace gas export of the double purification tower connects the condenser, the condensed pipework condensation of furnace gas Furnace gas continues through pipeline and enters the demister afterwards, after demister demisting, is finally dried again through drying tower.
2. a kind of flue gas cleaning system as claimed in claim 1, it is characterised in that first scrubbing tower includes:Baffle plate, hole Plate, furnace gas import, atomizer, cleaning solution import, the furnace gas import are arranged on lower section, furnace gas on the left of first scrubbing tower and gone out Mouth is arranged on the first washing column overhead, and the atomizer is arranged on the first scrubbing tower right side central, the acid inlet The first scrubbing tower right upper portion is arranged on, the baffle plate and orifice plate form scrubber layer, be distributed in first scrubbing tower Portion, nozzle is provided with the atomizer.
3. a kind of flue gas cleaning system as claimed in claim 1 or 2, it is characterised in that the cleaning solution of first scrubbing tower enters Mouth and cleaning solution outlet are all connected with the scrubbing tower circulating slot a, the scrubbing tower circulating slot a connections settling tank.
4. a kind of flue gas cleaning system as claimed in claim 1, it is characterised in that second scrubbing tower includes:Furnace gas enters Mouth, furnace gas export, atomizer, cleaning solution outlet.The furnace gas import is located at the second scrubbing tower left lower, the furnace gas Outlet is located at the second washing column overhead, and the atomizer is arranged in the middle part of second scrubbing tower, the cleaning solution Outlet is arranged on the second scrubbing tower lower right side,
5. a kind of flue gas cleaning system as described in claim 1 or 4, it is characterised in that the second scrubbing tower atomizer is through entering Liquid pipe is connected with the scrubbing tower circulating slot b, and the cleaning solution outlet of second scrubbing tower follows through liquid back pipe and the scrubbing tower Annular groove b is connected.
6. a kind of flue gas cleaning system as claimed in claim 1, it is characterised in that the condenser includes furnace gas import, condensation Pipe, condensate outlet, the furnace gas import are arranged on the condenser top, the condensate outlet by liquid back pipe with it is described Condenser acid storage tank connects, and passes through condensed water in the condenser pipe.
7. a kind of flue gas cleaning system as claimed in claim 1, it is characterised in that washed described in the condenser acid storage tank connection Wash tower circulating slot b, the scrubbing tower circulating slot b connections scrubbing tower circulating slot a, described in the scrubbing tower circulating slot a connections Settling tank, the gas entered in settling tank are discharged after gas purifier.
8. a kind of flue gas cleaning system as claimed in claim 1, it is characterised in that first scrubbing tower and the scrubbing tower Between circulating slot a can independent loops, between second scrubbing tower and the scrubbing tower circulating slot b can independent loops, it is described cold Can independent loops between condenser and the condenser acid storage tank.
CN201711072677.6A 2017-11-03 2017-11-03 A kind of flue gas cleaning system Pending CN107596844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711072677.6A CN107596844A (en) 2017-11-03 2017-11-03 A kind of flue gas cleaning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711072677.6A CN107596844A (en) 2017-11-03 2017-11-03 A kind of flue gas cleaning system

Publications (1)

Publication Number Publication Date
CN107596844A true CN107596844A (en) 2018-01-19

Family

ID=61084891

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484532A (en) * 1936-04-10 1938-05-06 Raffinerie Tirlemontoise Sa Apparatus for deodorizing and removing dust from gases from furnaces for calcining liquors containing combustion residues
DE19819317A1 (en) * 1998-04-30 1999-11-11 Celanese Gmbh Improved process for the production of acetaldehyde from ethylene and oxygen
CN1482057A (en) * 2003-05-16 2004-03-17 河南豫光金铅股份有限公司 Method of five stage catalyst and double conversion and double absorption to treat smoke of lead bottom blowing furnace for preparing vitriol
CN104474819A (en) * 2014-11-12 2015-04-01 山东科技大学 Wet-type dust-capturing wind current cooling device
CN104645790A (en) * 2015-02-10 2015-05-27 成都阿斯特克国龙环保工程有限公司 Smoke purification system and method for pickling line
CN105457418A (en) * 2015-12-28 2016-04-06 青岛科技大学 Combined type washing rectifying tower
CN205517149U (en) * 2016-03-29 2016-08-31 云南华联锌铟股份有限公司 Processing system of zinc smelting 's boiling calcination flue gas
CN106031841A (en) * 2015-03-20 2016-10-19 北京博源恒升高科技有限公司 Denitration technology and equipment for gas
KR101695473B1 (en) * 2016-07-19 2017-01-23 장우기계 주식회사 Waste heat recovery of exhaust gas and dehumidification device
CN206325364U (en) * 2016-08-31 2017-07-14 瓮福达州化工有限责任公司 A kind of tail gas generated by granulation cleaning system
CN206508762U (en) * 2017-02-23 2017-09-22 山东象力丰生物科技有限公司 A kind of scrubbing tower used in organic fertilizer production
CN208244357U (en) * 2017-11-03 2018-12-18 天津市三木森电炉股份有限公司 A kind of flue gas cleaning system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484532A (en) * 1936-04-10 1938-05-06 Raffinerie Tirlemontoise Sa Apparatus for deodorizing and removing dust from gases from furnaces for calcining liquors containing combustion residues
DE19819317A1 (en) * 1998-04-30 1999-11-11 Celanese Gmbh Improved process for the production of acetaldehyde from ethylene and oxygen
CN1482057A (en) * 2003-05-16 2004-03-17 河南豫光金铅股份有限公司 Method of five stage catalyst and double conversion and double absorption to treat smoke of lead bottom blowing furnace for preparing vitriol
CN104474819A (en) * 2014-11-12 2015-04-01 山东科技大学 Wet-type dust-capturing wind current cooling device
CN104645790A (en) * 2015-02-10 2015-05-27 成都阿斯特克国龙环保工程有限公司 Smoke purification system and method for pickling line
CN106031841A (en) * 2015-03-20 2016-10-19 北京博源恒升高科技有限公司 Denitration technology and equipment for gas
CN105457418A (en) * 2015-12-28 2016-04-06 青岛科技大学 Combined type washing rectifying tower
CN205517149U (en) * 2016-03-29 2016-08-31 云南华联锌铟股份有限公司 Processing system of zinc smelting 's boiling calcination flue gas
KR101695473B1 (en) * 2016-07-19 2017-01-23 장우기계 주식회사 Waste heat recovery of exhaust gas and dehumidification device
CN206325364U (en) * 2016-08-31 2017-07-14 瓮福达州化工有限责任公司 A kind of tail gas generated by granulation cleaning system
CN206508762U (en) * 2017-02-23 2017-09-22 山东象力丰生物科技有限公司 A kind of scrubbing tower used in organic fertilizer production
CN208244357U (en) * 2017-11-03 2018-12-18 天津市三木森电炉股份有限公司 A kind of flue gas cleaning system

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Application publication date: 20180119

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