CN203893211U - Flue dust collecting device - Google Patents

Flue dust collecting device Download PDF

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Publication number
CN203893211U
CN203893211U CN201420333918.3U CN201420333918U CN203893211U CN 203893211 U CN203893211 U CN 203893211U CN 201420333918 U CN201420333918 U CN 201420333918U CN 203893211 U CN203893211 U CN 203893211U
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CN
China
Prior art keywords
flue
air inlet
water mist
water fog
charge chamber
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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.)
Expired - Fee Related
Application number
CN201420333918.3U
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Chinese (zh)
Inventor
谭厚章
熊英莹
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谭厚章
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Priority to CN201420333918.3U priority Critical patent/CN203893211U/en
Application granted granted Critical
Publication of CN203893211U publication Critical patent/CN203893211U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a flue dust collecting device which comprises a flue air inlet section and a flue air outlet section. A wet-type electric dust collector is installed in the flue air outlet section. A desulfurizing absorption tower is arranged at the front end of the flue air inlet section. The rear end of the flue air inlet section and the flue air outlet section are communicated through a water mist charged chamber. The water mist charged chamber comprises a high-voltage power source arranged outside the water mist charged chamber. The high-voltage power source extends into the water mist charged chamber through a wire, and is connected with an annular electrode installed in the water mist charged chamber. An atomizing nozzle is formed in the water mist charged chamber and installed in one side, close to the flue air inlet section, of the annular electrode. The spraying direction of the atomizing nozzle is the same as the flowing direction of smoke entering the water mist charged chamber. According to the flue dust collecting device, the condition of the smoke exhausted from the desulfurizing absorption tower is effectively optimized, and micro particulate matters difficult to remove are condensed to be large in charged water mist, enter the wet-type electric dust collector along with the smoke, and are collected and removed through anode tube bundles of the wet-type electric dust collector.

Description

A kind of flue-pipe dust-controlling apparatus
Technical field
The utility model belongs to flue dedusting field, is specifically related to a kind of flue-pipe dust-controlling apparatus.
Background technology
Burning pollutant discharge is to form one of arch-criminal of haze weather.Haze refers under the condition of mist, because air flow property is poor, and in unit space, dust concentration constantly increases, and further forms high concentrate dust and is bonded in and on water droplet, is suspended in the phenomenon coexisting in the air.In such cases the mankind directly being endangered is exactly PM2.5.If air flow property is always very poor, aqueous vapor is always a lot, and surface temperature does not rise, the mist dissipation of just can not gasifying, dust just falls not go back to ground, and dust is suspended in aerial concentration and just can not get dilution, in such environment, single is exactly the environment that is not suitable for people living with regard to dust.
For control combustion pollutant emission, new < < emission standard of air pollutants for boilers > > (GB13271-2013) coal-burning boiler smoke dust discharge concentration by 50mg/m 3bring up to 30mg/m 3, 20mg/m is brought up in key area 3.At present, many places have also proposed the necessary < 5mg/Nm of dust emission standard 3.In the face of high-level dust exhausting concentration, original cleaner can not reach standard.Must develop technology new, that can effectively remove fine dust.
Wet-esp, as the representative of new dedusting technology, has started commercial Application.But, due to the diversity of submicron order fine particle and different character, cause self being difficult to charged, routinely design the highest efficiency of dust collection of wet-esp be restricted.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of novel flue-pipe dust-controlling apparatus, can effectively optimize wet electrical dust precipitator inlet flue gas, improves the efficiency of dust collection of wet electrical dust precipitator.
In order to address the above problem, the utility model adopts following technical scheme to be achieved:
A kind of flue-pipe dust-controlling apparatus, comprise flue air inlet section and the flue section of giving vent to anger, in the flue section of giving vent to anger, wet electrical dust precipitator is installed, described flue air inlet section front end is provided with desulfuration absorbing tower, between the rear end of flue air inlet section and the flue section of giving vent to anger, by water fog charge chamber, is communicated with;
Described water fog charge chamber comprises the high voltage source that is arranged on water fog charge outdoor, high voltage source stretches into the water fog charge chamber annular electrode indoor with being arranged on water fog charge by wire and is connected, the indoor atomizer that is also provided with of water fog charge, atomizer is arranged on annular electrode near a side of flue air inlet section, and the injection direction of atomizer is identical with the flow of flue gas direction that enters water fog charge chamber; Flue gas enters the flue section of giving vent to anger through desulfuration absorbing tower, flue air inlet section, atomizer, annular electrode successively, and then discharges from the flue section of giving vent to anger through wet electrical dust precipitator, realizes the udst separation of flue gas.
The utility model also has following technical characterictic:
In described desulfuration absorbing tower, demister is installed.
Between described wire and water fog charge chamber, be provided with a layer insulating.
The described flue section of giving vent to anger bottom is provided with dust collecting box.
The present invention has following useful technique effect:
The utility model is by increasing water fog charge chamber at wet electrical dust precipitator entrance, effectively optimize the flue gas situation that desulfuration absorbing tower is discharged, make to condense and grow up in the fine particle that is difficult for the removing water smoke after charged, with flue gas, enter wet electrical dust precipitator inside, by the tube bank of wet-esp anode, caught, remove.The utility model is simple in structure, cost is low, effectively improves 10~15% wet-esp efficiency, makes deduster outlet dust concentration be reduced to 5mg/Nm 3below.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure, the implication of each label is: 1-flue air inlet section, the 2-flue section of giving vent to anger, 3-wet electrical dust precipitator, 4-desulfuration absorbing tower, 5-water fog charge chamber, 6-high voltage source, 7-wire, 8-annular electrode, 9-atomizer, 10-demister, 11-insulating barrier, 12-dust collecting box.
Below in conjunction with drawings and Examples, particular content of the present utility model is explained in detail.
The specific embodiment
Below provide specific embodiment of the utility model, it should be noted that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Embodiment:
Defer to technique scheme, as shown in Figure 1, the present embodiment has provided a kind of flue-pipe dust-controlling apparatus, comprise flue air inlet section 1 and the flue section of giving vent to anger 2, wet electrical dust precipitator 3 is installed in the flue section of giving vent to anger 2, described flue air inlet section 1 front end is provided with desulfuration absorbing tower 4, between the rear end of flue air inlet section 1 and the flue section of giving vent to anger 2, by water fog charge chamber 5, is communicated with;
Described water fog charge chamber 5 comprises the high voltage source 6 that is arranged on 5 outsides, water fog charge chamber, annular electrode 8 in high voltage source 6 is stretched into water fog charge chamber 5 and is arranged on water fog charge chamber 5 by wire 7 is connected, atomizer 9 is also installed in water fog charge chamber 5, atomizer 9 is arranged on annular electrode 8 near a side of flue air inlet section 1, and the injection direction of atomizer 9 is identical with the flow of flue gas direction that enters water fog charge chamber 5; Flue gas enters the flue section of giving vent to anger 2 through desulfuration absorbing tower 4, flue air inlet section 1, atomizer 9, annular electrode 8 successively, and then discharges from the flue section of giving vent to anger 2 through wet electrical dust precipitator 3, realizes the udst separation of flue gas.
4 pairs of flue gases of desulfuration absorbing tower carry out preliminary purification, remove the element sulphur in flue gas.
Demister 10 is installed in desulfuration absorbing tower 4, and demister 10 is used for flue gas further to purify, and removes water droplet, gypsum in flue gas.
Between wire 7 and water fog charge chamber 5, be provided with a layer insulating 11.Insulating barrier 11 is for guaranteeing that high voltage source 6 leakprooves, to water fog charge chamber 5, prevent dangerous hidden danger.
The flue section of giving vent to anger 2 bottoms are provided with dust collecting box 12.Wet electrical dust precipitator 3 removes the dust getting off and is collected and discharged by dust collecting box 12.
, for optimizing wet electrical dust precipitator 3 inlet flue gas situations, reuniting the fine particle that particle diameter is too small, grow up in water fog charge chamber 5, improves the eliminating efficiency of wet electrical dust precipitator 3.
The course of work of the present utility model is as described below:
Flue gas is after desulfuration absorbing tower 4 is processed, through demister 10, remove gypsum and large drop, through flue air inlet section 1, enter water fog charge chamber 5, flue gas is through water fog charge chamber 5, in water fog charge chamber 5, atomizer 9 is finer atomization nozzle 9, and atomizer 9 utilizes hydraulic pressure, can directly form the atomisation that diameter is 10~50 μ m; Spray angle is adjustable from 45~90 degree.Annular electrode 8 makes atomisation charged under high-tension electricity effect, during the water smoke of flue gas after charged, make to condense and grow up in the fine particle that is difficult for removing that flue gas the carries water smoke after charged, particle after growing up enters wet electrical dust precipitator 3 inside with flue gas, by the tube bank of the anode of wet electrical dust precipitator 3, is caught, removes.
The dust that wet electrical dust precipitator 3 is received is discharged from the dust collecting box 12 of the flue section of giving vent to anger 2 bottoms of wet electrical dust precipitator 3 belows, and the flue gas after purification enters chimney from wet electrical dust precipitator 3 top exits through the flue section of giving vent to anger and directly discharges.Through using the sampling of low pressure ram, gravimetric method detects, use 1,000,000/precision electronic balance weighing, efficiency of dust collection > 85%, 70% the efficiency higher than existing independent wet electrical dust precipitator 3 dedustings, effectively improve wet-esp efficiency 10~15%, arrive the discharge standard of <5mg/Nm3.

Claims (4)

1. a flue-pipe dust-controlling apparatus, comprise flue air inlet section (1) and the flue section of giving vent to anger (2), wet electrical dust precipitator (3) is installed in the flue section of giving vent to anger (2), it is characterized in that: described flue air inlet section (1) front end is provided with desulfuration absorbing tower (4), between the rear end of flue air inlet section (1) and the flue section of giving vent to anger (2), by water fog charge chamber (5), be communicated with;
Described water fog charge chamber (5) comprises the high voltage source (6) that is arranged on outside, water fog charge chamber (5), annular electrode (8) in high voltage source (6) is stretched into water fog charge chamber (5) and is arranged on water fog charge chamber (5) by wire (7) is connected, atomizer (9) is also installed in water fog charge chamber (5), atomizer (9) is arranged on annular electrode (8) near a side of flue air inlet section (1), and the injection direction of atomizer (9) is identical with the flow of flue gas direction that enters water fog charge chamber (5); Flue gas passes through successively desulfuration absorbing tower (4), flue air inlet section (1), atomizer (9), annular electrode (8) and enters the flue section of giving vent to anger (2), and then discharge from the flue section of giving vent to anger (2) through wet electrical dust precipitator (3), realize the udst separation of flue gas.
2. flue-pipe dust-controlling apparatus as claimed in claim 1, is characterized in that: demister (10) is installed in described desulfuration absorbing tower (4).
3. flue-pipe dust-controlling apparatus as claimed in claim 1, is characterized in that: between described wire (7) and water fog charge chamber (5), be provided with a layer insulating (11).
4. flue-pipe dust-controlling apparatus as claimed in claim 1, is characterized in that: the described flue section of giving vent to anger (2) bottom is provided with dust collecting box (12).
CN201420333918.3U 2014-06-20 2014-06-20 Flue dust collecting device Expired - Fee Related CN203893211U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420333918.3U CN203893211U (en) 2014-06-20 2014-06-20 Flue dust collecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420333918.3U CN203893211U (en) 2014-06-20 2014-06-20 Flue dust collecting device

Publications (1)

Publication Number Publication Date
CN203893211U true CN203893211U (en) 2014-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420333918.3U Expired - Fee Related CN203893211U (en) 2014-06-20 2014-06-20 Flue dust collecting device

Country Status (1)

Country Link
CN (1) CN203893211U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108295599A (en) * 2018-01-03 2018-07-20 南京铁道职业技术学院 A kind of electric automatization industrial dedusting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108295599A (en) * 2018-01-03 2018-07-20 南京铁道职业技术学院 A kind of electric automatization industrial dedusting device
CN108295599B (en) * 2018-01-03 2020-06-30 南京铁道职业技术学院 Electric automatization industrial dust collector

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20160620