CN109604060A - Wet type electric dust-removing device with high dust removing effects - Google Patents
Wet type electric dust-removing device with high dust removing effects Download PDFInfo
- Publication number
- CN109604060A CN109604060A CN201811561051.6A CN201811561051A CN109604060A CN 109604060 A CN109604060 A CN 109604060A CN 201811561051 A CN201811561051 A CN 201811561051A CN 109604060 A CN109604060 A CN 109604060A
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- CN
- China
- Prior art keywords
- ash
- dust
- anode plate
- ash bucket
- air inlet
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/014—Addition of water; Heat exchange, e.g. by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/011—Prefiltering; Flow controlling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
Abstract
The invention belongs to dedusting technology fields.The dust removing effects of existing wet electrical dust precipitator are poor, for the problems of the prior art, the invention discloses a kind of Wet type electric dust-removing devices with high dust removing effects, including shell, housing bottom is equipped with ash bucket, air inlet there are two being set on ash bucket side wall, air inlet is located at ash bucket middle and upper part, air inlet and ash bucket curved surface are tangent, hopper bottom is equipped with ash discharging hole, ash discharging hole is connected with ash releasing tube, the first ash-valve is equipped at ash discharging hole, case top is equipped with air outlet, enclosure interior is successively arranged annular spray pipe from bottom to up, electric precipitation component and demister, spraying bottom of the tube is evenly distributed with several spray heads towards housing bottom, electric precipitation component includes the anode plate that several are vertically arranged, each anode plate is parallel to each other, cathode line is equipped between anode plate, anode plate top is equipped with the collection dress for trapping the dust escaped from anode plate It sets.The configuration of the present invention is simple, good dedusting effect.
Description
Technical field
The present invention relates to a kind of electrical dust collector devices, and in particular to a kind of Wet type electric dust-removing device with high dust removing effects,
Belong to dedusting technology field.
Background technique
Coal-burning power plant is always the emphasis that National Environmental is administered, and the pollutant emission standard newly put into effect is even more to land in recent years
More stringent requirements are proposed for dedusting, desulfurization and the denitrating system of continuous follow-up.How PM2.5 fine grained discharge, gypsum rain are controlled
It is had become a top priority with the problems such as chimney blue smoke.Wet electrical dust precipitator is as a kind of advanced smoke gas treatment technology of hinge, full
Sufficient minimum discharge flue gas, improvement PM2.5 etc. effect are obvious.
Existing wet electrical dust precipitator structure, as shown in Figure 1, including shell, housing bottom and top are respectively equipped with smoke inlet
01 and outlet flue 02, enclosure interior is equipped with several collecting plates 03 and spray tube 04 disposed in parallel, is equipped between collecting plate 03
Discharge electrode 05, spray tube 04 are located at 03 top of collecting plate.Its working principle is that: apply between deduster dust collecting electrode and discharge electrode
Tens of thousands of volt DC high-voltages, strong electrical field ionize the gas between two-stage, make to be filled with band in the space of electric field region just
The ion of negative electrical charge enters the dust ion of deduster internal electric field from smoke inlet and these charged ions mutually collides and lotus
Electricity, it is charged after dust be captured under the action of electric field force into dust collecting electrode, spray tube at the top of electric field is sprayed dust
Plate is to wash away the purified treatment to realize flue gas for dust of the heavy collection on pole plate.Using existing wet electrical dust precipitator to flue gas
When being handled, dust is easily escaped from collecting plate, and collecting plate middle and lower part usually will appear the incomplete situation of flushing, dedusting effect
Fruit is poor.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of Wet type electric dust-removing device with high dust removing effects, should
Dust-extraction unit is able to solve the problem of existing wet electrical dust precipitator dust removing effects difference to the good dedusting effect of flue gas.
To realize the above technical purpose, the technical scheme is that
A kind of Wet type electric dust-removing device with high dust removing effects, including shell, air inlet and outlet, injection spray pipe, electricity remove
Dirt component and demister, the housing bottom are equipped with ash bucket, are set on ash bucket side wall there are two air inlet, air inlet is located in ash bucket
Top, air inlet and ash bucket curved surface are tangent, and hopper bottom is equipped with ash discharging hole, and ash discharging hole is connected with ash releasing tube, is equipped at ash discharging hole
First ash-valve, the case top are equipped with air outlet, and the enclosure interior is successively arranged injection spray pipe, electric precipitation group from bottom to up
Part and demister, the injection spray pipe are annular spray pipe, and injection spray pipe is connected with tank, if spraying bottom of the tube is evenly distributed with
The dry spray head towards housing bottom, the electric precipitation component includes the anode plate that several are vertically arranged, and each anode plate is mutual
In parallel, the first cathode line is equipped between anode plate, anode plate top is equipped with the collection for trapping the dust escaped from anode plate
Device.The configuration of the present invention is simple, good dedusting effect.Wherein, it by the way that annular spray pipe is arranged below anode plate, is sprayed on injection spray pipe
The water mist that mouth sprays inversely is sufficiently mixed with the entrance intracorporal flue gas of shell makes flue gas be humidified, and the dust particles in flue gas condense length
Greatly, water mist takes the dust particles in flue gas and enters electric field and charged in the electric field, and then is captured by anode plate, when anode plate is caught
Self-cleaning moisture film can be formed on anode plate after receiving enough dust-laden droplets, so as to avoid anode plate middle and lower part from removing
The not clean situation of dirt improves dust removing effects, by the way that collection device is arranged above anode plate, can trap from anode plate escape
Dust, to further increase dust removing effects；By setting and the tangent air inlet of ash bucket curved surface, can make after entering ash bucket
Ash-laden gas circumferentially screw formed swirling eddy enter in shell, so as to so that the air flow method of enclosure interior more
Uniformly, be conducive to the capture of mixing and anode plate full and uniform between ash-laden gas and water mist to dust-laden water mist, can be improved
Dust removing effects, in addition, the centrifugal force that gas generates in rotary course severe can be greater than the grit of gas and dust-laden droplet is got rid of
To wall, this part grit and dust-laden droplet enter hopper bottom discharge under Gravitative Loads, can further increase dedusting
Effect.
Preferably, the collection device lines up two rows, lower row's collection device collection dress corresponding with upper row
Set dislocation arrangement.
Preferably, the collection device includes and anode plate two side pole plates disposed in parallel, two side pole plates
Between be equipped with the second cathode line, the top of two side pole plates has been smoothly connected arc sieve plate, arc sieve plate and two side poles
Plate forms groove of the opening towards anode plate.The present invention is by being arranged the arc strainer being smoothly connected with two side pole plate tops
Plate, can be to avoid dedusting dead angle, and the dust-laden droplet for being collected device capture is easy to fall into hopper bottom row under Gravitative Loads
Out, good dedusting effect.
Preferably, the electrical dust collector device further includes grid, and grid is reverse frustoconic, and grid is located at ash
Bucket is internal, and grid top is fixedly connected with the casing, and grid bottom end is located at below air inlet.The present invention passes through setting grid
Net, grid make the dust-laden in ash bucket by that can intercept to the grit in ash-laden gas with the grit collision in flue gas
Grit in flue gas realizes pre-separation before entering shell, so as to improve the efficiency of dust collection of the device, extends electric precipitation group
The service life of part.
Preferably, the second ash-valve is additionally provided on the ash releasing tube.The present invention can be made by the way that two-stage valve is arranged
The lixivium of hopper bottom is discharged in the state of keeping operating normally for the device, wherein the is first shut off when needing blowdown
Two ash-valves open the first ash-valve, and the is turned off after lixivium enters pipeline between the first ash-valve and the second ash-valve
One ash-valve opens the second ash-valve.
Detailed description of the invention
Fig. 1 is existing wet electrical dust precipitator structural schematic diagram；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of injection spray pipe in the present invention；
Fig. 4 is the structural schematic diagram of ash bucket in the present invention；
Appended drawing reference:
01. smoke inlet, 02. outlet flue, 03. collecting plate, 04. spray tube, 05. discharge electrode
10. 11. first 21. air inlet of ash-valve 12. second ash-valve, 20. ash bucket of ash releasing tube, 30. grid 40.
61. 62. first cathode line of anode plate of injection spray pipe 41. spray head, 50. demister, 60. electric precipitation component, 70. collection device
71. 80. shell of side pole plate 72. second cathode line, 73. arc sieve plate, 81. air outlet
Specific embodiment
In conjunction with Fig. 1 to Fig. 4, the specific embodiment that the present invention will be described in detail, but claim of the invention is not done
Any restriction.
As shown in Figures 1 to 4, a kind of Wet type electric dust-removing device with high dust removing effects, including shell 80, air inlet
21, air outlet 81, injection spray pipe 40, electric precipitation component and demister 50；
80 bottom of shell is equipped with ash bucket 20, sets on 20 side wall of ash bucket there are two air inlet 21, air inlet 21
In 20 middle and upper part of ash bucket, air inlet 21 and 20 curved surface of ash bucket are tangent, and 20 bottom of ash bucket is equipped with ash discharging hole, ash discharging hole and ash releasing tube 10
It is connected, the first ash-valve 11 and the second ash-valve 12 is successively arranged on ash releasing tube 10, wherein the first ash-valve 11 is located at ash discharging hole
Locate, the grid 30 of reverse frustoconic is equipped with inside the ash bucket 20,30 top of grid is fixedly connected with shell 80, grid 30
Bottom end is located at 21 lower section of air inlet；Air outlet 81 is equipped at the top of the shell 80；
Injection spray pipe 40, electric precipitation component 60 and demister 50 are successively arranged inside the shell 80 from bottom to up；The spray
Mist pipe 40 is annular spray pipe, and injection spray pipe 40 is connected with tank, and 40 bottom of injection spray pipe is evenly distributed with several towards shell
The spray head 41 of 80 bottom of body；The electric precipitation component 60 includes the anode plate 61 that several are vertically arranged, and each anode plate 61 is mutually
In parallel, the first cathode line 62 is equipped between anode plate 61,61 top of anode plate is equipped with for trapping the powder escaped from anode plate 61
The collection device 70 of dirt, the collection device 70 include and 61 disposed in parallel two side pole plates 71 of anode plate, two side pole plates
The second cathode line 72 is equipped between 71, the top of two side pole plates 71 has been smoothly connected arc sieve plate 73, arc sieve plate 73
Groove of the opening towards anode plate 61 is formed with two side pole plates 71, the filter opening pore size of arc sieve plate 73 is by dust characteristic
It determines；Wherein, in order to more trap the dust escaped from anode plate 61, dust removing effects are improved, the collection device 70 can
To be arranged to two rows, misplace arrangement between each collection device collection device corresponding with upper row in lower row.
Working principle:
Ash-laden gas enters ash bucket 20 from air inlet 21, is become into the ash-laden gas air-flow after ash bucket 20 from moving along a straight line
Circular motion, swirling eddy enter in shell 80 along 30 downward spiral of grid, and the nozzle on annular spray pipe 40 sprays downwards
After water mist out and the flue gas entered in shell 80 are inversely sufficiently mixed, water mist take the dust particles in flue gas enter electric field and
It is charged in electric field, and then captured by anode plate 61, it can be in anode plate 61 after anode plate 61 captures enough dust-laden droplets
Upper formation self-cleaning moisture film, self-cleaning water flow under the influence of gravity into 20 bottom of ash bucket, wherein when 20 bottom of ash bucket, accumulation is certain
After measuring lixivium, the second ash-valve 12 can be closed, opens the first ash-valve 11, enters the first ash-valve 11 and second row to lixivium
The first ash-valve 11 is turned off after pipeline between grey valve 12, opens the second ash-valve 12 and lixivium is discharged along ash releasing tube 10.Through
Flue gas after dedusting is discharged using after the extra water mist contained in the removing flue gas of demister 50 from air outlet 81.
In conclusion the invention has the following advantages that
1. the present invention by setting and the tangent air inlet 21 of 20 curved surface of ash bucket, can make to enter the dust constaining after ash bucket 20
Gas air-flow becomes circular motion from moving along a straight line, and swirling eddy enters in shell 80 along 30 downward spiral of grid, so as to
So that the air flow method inside shell 80 is more uniform, be conducive to mixing and anode full and uniform between ash-laden gas and water mist
Capture of the plate 61 to dust-laden water mist improves dust removing effects, in addition, the centrifugal force that gas generates in rotary course can be big by severe
It gets rid of in the grit and dust-laden droplet of gas to wall, this part grit and dust-laden droplet enter 20 bottom of ash bucket under Gravitative Loads
Portion's discharge, can further increase dust removing effects.
2. the present invention is in ash bucket 20 by being arranged grid 30, grid 30 is by can be with the grit collision in flue gas
Grit in ash-laden gas is intercepted, the grit in the ash-laden gas in ash bucket 20 is made to realize pre- point before entering shell 80
From, so that the efficiency of dust collection of the device is improved, the service life of extension electric precipitation component 60.
3. the present invention by below anode plate 61 be arranged annular spray pipe 40,40 top nozzle of injection spray pipe spray water mist with
After being inversely sufficiently mixed into the flue gas in shell 80, water mist takes the dust particles in flue gas and enters electric field and in the electric field lotus
Electricity, and then captured by anode plate 61, it can be formed certainly on anode plate 61 after anode plate 61 captures enough dust-laden droplets
Moisture film is cleaned, so as to avoid 61 middle and lower part of anode plate from the not clean situation of dedusting occur, improves dust removing effects；
4. the present invention can trap the powder escaped from anode plate 61 by the way that collection device 70 is arranged above anode plate 61
Dirt improves dust removing effects, wherein two 71 tops of side pole plate in collection device 70 is smoothly connected with arc sieve plate 73,
Dedusting dead angle can also be avoided, the dust-laden droplet for being collected the capture of device 70 is made to be easy to fall into 20 bottom of ash bucket under Gravitative Loads
Portion's discharge.
5. the present invention can make the electrical dust collector device in the state of keeping operating normally by ash bucket by the way that two-stage valve is arranged
The lixivium of 20 bottoms is discharged, wherein is first shut off the second ash-valve 12 when needing blowdown, the first ash-valve 11 is opened, to ash
The first ash-valve 11 is turned off after the pipeline that liquid enters between the first ash-valve 11 and the second ash-valve 12, opens the second ash-valve
12.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (5)
1. a kind of Wet type electric dust-removing device with high dust removing effects, which is characterized in that including shell, air inlet and outlet, spray
Mist pipe, electric precipitation component and demister, the housing bottom are equipped with ash bucket, set that there are two air inlet, air inlets on ash bucket side wall
Positioned at ash bucket middle and upper part, air inlet and ash bucket curved surface are tangent, and hopper bottom is equipped with ash discharging hole, and ash discharging hole is connected with ash releasing tube, arrange
The first ash-valve is equipped at grey mouth, the case top is equipped with air outlet, and the enclosure interior is successively arranged spraying from bottom to up
Pipe, electric precipitation component and demister, the injection spray pipe are annular spray pipe, and injection spray pipe is connected with tank, spraying bottom of the tube
Several spray heads towards housing bottom are evenly distributed with, the electric precipitation component includes the anode plate that several are vertically arranged,
Each anode plate is parallel to each other, and the first cathode line is equipped between anode plate, and anode plate top is equipped with escapes for trapping from anode plate
Dust collection device.
2. as described in claim 1 with the Wet type electric dust-removing device of high dust removing effects, which is characterized in that the collection device
Line up two rows, lower row's collection device collection device dislocation arrangement corresponding with upper row.
3. as claimed in claim 1 or 2 with the Wet type electric dust-removing device of high dust removing effects, which is characterized in that the collection
Device include with anode plate two side pole plates disposed in parallel, the second cathode line, two side pole plates are equipped between two side pole plates
Top be smoothly connected arc sieve plate, arc sieve plate forms groove of the opening towards anode plate with two side pole plates.
4. as described in claim 1 with the Wet type electric dust-removing device of high dust removing effects, which is characterized in that the electric precipitation dress
Setting further includes grid, and grid is reverse frustoconic, and grid is located inside ash bucket, and grid top is fixedly connected with the casing,
Grid bottom end is located at below air inlet.
5. as described in claim 1 with the Wet type electric dust-removing device of high dust removing effects, which is characterized in that on the ash releasing tube
It is additionally provided with the second ash-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561051.6A CN109604060A (en) | 2018-12-19 | 2018-12-19 | Wet type electric dust-removing device with high dust removing effects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561051.6A CN109604060A (en) | 2018-12-19 | 2018-12-19 | Wet type electric dust-removing device with high dust removing effects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109604060A true CN109604060A (en) | 2019-04-12 |
Family
ID=66010067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811561051.6A Pending CN109604060A (en) | 2018-12-19 | 2018-12-19 | Wet type electric dust-removing device with high dust removing effects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109604060A (en) |
Citations (7)
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2018
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| KR20140114233A (en) * | 2013-03-18 | 2014-09-26 | 주식회사 한성더스트킹 | Wet type dust collector system for collecting and exhausting coarse dust |
| CN203620505U (en) * | 2013-11-27 | 2014-06-04 | 浙江蓝天求是环保股份有限公司 | Wet-type electric precipitation desulfuration integrated device |
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| CN104801135A (en) * | 2015-04-03 | 2015-07-29 | 宜兴市爱迪尔科技有限公司 | Filter-screen wet-type electric dust removing device and method |
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Application publication date: 20190412 |