CN207755926U - Electrostatic blast furnace gas dust remover - Google Patents
Electrostatic blast furnace gas dust remover Download PDFInfo
- Publication number
- CN207755926U CN207755926U CN201721710674.6U CN201721710674U CN207755926U CN 207755926 U CN207755926 U CN 207755926U CN 201721710674 U CN201721710674 U CN 201721710674U CN 207755926 U CN207755926 U CN 207755926U
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- dust
- screen pipe
- blast furnace
- ceramic screen
- furnace gas
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- 239000000428 dust Substances 0.000 title claims abstract description 90
- 239000000919 ceramic Substances 0.000 claims abstract description 71
- 238000009413 insulation Methods 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 12
- 239000003245 coal Substances 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 39
- 239000003034 coal gas Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 9
- 238000001914 filtration Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 3
- 238000005367 electrostatic precipitation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
The utility model provides an electrostatic blast furnace gas dust remover includes: a dust collector housing having an inner cavity; the insulating plate assembly is arranged in the inner cavity and divides the inner cavity into a dust removing chamber and an ash collecting chamber along the vertical direction, and a clean gas inlet and outlet is formed in the top of the dust remover shell and is communicated with the dust removing chamber; the inlet end of the inlet pipeline is positioned outside the top of the dust remover shell, and the outlet end of the inlet pipeline penetrates through the dust removing chamber and is positioned in the dust collecting chamber; the ceramic filter tube is arranged in the dust removing chamber, the ceramic filter tube is of a tubular structure with the upper end closed and the lower end opened, the ceramic filter tube is fixed on the insulating plate assembly, the lower end of the ceramic filter tube penetrates through the insulating plate assembly and is communicated with the dust collecting chamber, and an anode wire is arranged on the outer surface of the ceramic filter tube; the cathode needle is arranged in the ceramic filter tube. The beneficial effects of the utility model are that, can improve dust collection efficiency and prevent that ceramic chimney filter, positive pole line and negative pole needle from destroying.
Description
Technical field
The utility model is related to dedusting of blast furnace gas field, specifically a kind of electrostatic blast furnace gas dust collector.
Background technology
In recent years, due to energy-saving demand, because the significant energy-saving effect of blast furnace gas fully-dried type sack cleaner obtains
It has arrived widely available.Existing common deduster is generally following two：
Publication No. CN20309612 U, it is entitled《A kind of blast furnace gas dust collector with dry method》Chinese utility model it is special
Profit.Deduster structure disclosed in the patent is vertical cartridge type deduster, inside setting anode plate and cathode cable architecture, deduster
Using downside into ejecting structure, removing dust and clearing ash mode uses vibration dust-cleaning mode.The shortcomings that prior art：Downside is vertical into ejection
Formula cartridge type deduster combination anode plate and cathode cable architecture, can cause coal gas to be unevenly distributed in deduster, Gas Flow is not easy
Across pole plate and polar curve, cause dust removing effects poor.And there are pole plates and line structure, vibration dust-cleaning to be not easy reality inside deduster
Existing, ash-removal effect is poor.
Publication No. CN 2033209177 U, it is entitled《A kind of blast furnace gas wet cottrell》Utility model
Patent.Its deduster structure is cartridge type, and cylinder body bottom is connected with the ash collection slot that catchments.The shortcomings that prior art：Its structure is wet type
Deduster can spray into water to reach dust removing effects in coal gas.The penetrating of water can reduce gas temperature in coal gas, be unfavorable for coal gas
Energy regenerating, energy-saving effect are poor.
Utility model content
The utility model provides a kind of electrostatic blast furnace gas dust collector, to reach the mesh for improving dedusting and ash-removal effect
's.
Technical solution adopted by the utility model to solve its technical problems is：A kind of electrostatic blast furnace gas dust collector, packet
It includes：Shell of dust remover has inner cavity；Insulation board component is arranged in interior intracavitary and inner cavity is vertically divided into dirt pocket
And dust collection chamber, purified gas entrance is provided at the top of shell of dust remover, and purified gas entrance is connected to dirt pocket；Inlet tube
Road, arrival end are located at outside the top of shell of dust remover, and the outlet end of inlet ductwork passes through dirt pocket and in dust collection chamber；Ceramics
Chimney filter is arranged in dirt pocket, and ceramic screen pipe is the tubular structure of upper end closed lower ending opening, and ceramic screen pipe is fixed on insulation board
On component, and the lower end of ceramic screen pipe passes through insulation board component and is connected to dust collection chamber, is provided on the outer surface of ceramic screen pipe
Anode line；Cathode needle is arranged in ceramic screen pipe.
Further, insulation board component includes upper insulation plate and lower insulation plate, and upper insulation plate and lower insulation plate are by inner cavity edge
Vertical direction is divided into the air-purifying chamber, dirt pocket and dust collection chamber set gradually, and multiple clean coal vent holes are provided on upper insulation plate,
Air-purifying chamber is connected to by clean coal vent hole with dirt pocket.
Further, ceramic screen pipe is a plurality of, and in dirt pocket uniformly at intervals, the outer surface of every ceramic screen pipe is respectively provided with
There is a plurality of anode line, a cathode needle is both provided in every ceramic screen pipe.
Further, cathode needle and ceramic screen pipe are coaxial.
Further, the bottom of shell of dust remover is provided with ash discharging hole, and ash discharging hole is connected to dust collection chamber.
Further, ash discharging hole is provided with the ash discharge control valve for controlling ash discharging hole opening and closing.
Further, dust collection chamber is taper, and the diameter along dust collection chamber in top-down direction is gradually reduced.
Further, the inlet control valve for controlling inlet ductwork opening and closing is provided in inlet ductwork.
The utility model has the beneficial effects that dust-laden coal gas using the utility model embodiment be dusted operation when,
It is introduced at the top of dedusting shell, and the dust-laden coal gas is directed into be filtered in ceramic screen pipe by ceramic screen pipe lower end and is removed
The dust of dirt, larger particles can be removed by ceramic screen pipe, and molecule is made by the Electrostatic Absorption of anode line and cathode needle
With removal, to realize the effect of dust-laden coal gas dust removal.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
Novel illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.
In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the sectional view of B-B in Fig. 1.
Reference numeral in figure：10, shell of dust remover；11, dirt pocket；12, dust collection chamber；13, air-purifying chamber；14, purified gas goes out
Entrance；15, ash discharging hole；21, upper insulation plate；211, clean coal vent hole；22, lower insulation plate；30, inlet ductwork；40, ceramic filtering
Pipe；50, cathode needle.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1 to Figure 3, the utility model embodiment provides a kind of electrostatic blast furnace gas dust collector, including dedusting
Device shell 10, insulation board component, inlet ductwork 30, ceramic screen pipe 40 and cathode needle 50.Shell of dust remover 10 has inner cavity.Insulation
The setting of board group part is in interior intracavitary and inner cavity is vertically divided into dirt pocket 11 and dust collection chamber 12, the top of shell of dust remover 10
Portion is provided with purified gas entrance 14, and purified gas entrance 14 is connected to dirt pocket 11.The arrival end of inlet ductwork 30, which is located at, to be removed
Outside the top of dirt device shell 10, the outlet end of inlet ductwork 30 passes through dirt pocket 11 and in dust collection chamber 12.Ceramic screen pipe 40
It is arranged in dirt pocket 11, ceramic screen pipe 40 is the tubular structure of upper end closed lower ending opening, and ceramic screen pipe 40 is fixed on insulation
On board group part, and the lower end of ceramic screen pipe 40 passes through insulation board component and is connected to dust collection chamber 12, the outer surface of ceramic screen pipe 40
On be provided with anode line.Cathode needle 50 is arranged in ceramic screen pipe 40.
Dust-laden coal gas draws when being dusted operation using the utility model embodiment at the top of shell of dust remover 10
Enter, and the dust-laden coal gas is directed by 40 lower end of ceramic screen pipe in ceramic screen pipe 40 and is filtered dedusting, the powder of larger particles
Dirt can be removed by ceramic screen pipe 40, and molecule is removed by the electrostatic adsorption of anode line and cathode needle 50, to
Realize the effect of dust-laden coal gas dust removal.
In the utility model embodiment, using filter and electrostatic precipitation combine by the way of carry out dust-laden coal gas dust removal, can be with
Efficiency of dust collection and filtering accuracy are effectively improved, the wherein filtering accuracy in the utility model embodiment can reach 3mg/Nm3Below.
Simultaneously because the temperature of ceramic screen pipe 40 being resistant to is higher, can with low temperature use can also applied at elevated temperature, for dust-laden coal
The temperature applicable surface of gas is more extensive.
It should be noted that the utility model embodiment electrostatic blast furnace gas dust collector uses the structure for heading into ejection, i.e.,
Dust-laden coal gas is entered by the top of shell of dust remover 10, after filtering by 14 row of purified gas entrance at 10 top of shell of dust remover
Go out, air flow method can be effectively improved, air-flow is made to be evenly distributed (in compared with the existing technology in the inner cavity of shell of dust remover 10
Into pushing method, side is that air-flow enters from side into ejection, is discharged from top for side, air-flow in the cavity because autologous density problem without
Method accomplishes to be uniformly distributed.And jacking ejection is the lower end outflow that air-flow enters through inlet ductwork 30 from top, after air-flow outflow
In uniform reverse direction flow, therefore air flow method can be improved).
Further, wait for that ceramic screen pipe 40 reaches busy hour (i.e. filter efficiency is low, or can not be filtered), this
Utility model embodiment can introduce purified gas and enter inside electrostatic blast furnace gas dust collector from purified gas entrance 14, and blowback is fallen
The blast furnace ash being enriched in inside ceramic screen pipe 40, the blast furnace ash fallen are collected and are discharged in dust collection chamber 12.The utility model
Embodiment can effectively reduce ceramic screen pipe 40 and anode line and cathode needle 50 compared with rapping-off-ash mode in the prior art
Rapping-off-ash operation in damage, while introduce purified gas carry out blowback ash disposal it is more efficient, and do not have to additionally consume it
His gas (such as nitrogen), reaching reduces cost and energy-efficient purpose.
Specifically, as shown in Figures 1 to 3, insulation board component includes upper insulation plate 21 and lower insulation plate 22,21 He of upper insulation plate
Inner cavity is vertically divided into the air-purifying chamber 13, dirt pocket 11 and dust collection chamber 12 set gradually, upper insulation by lower insulation plate 22
Multiple clean coal vent holes 211 are provided on plate 21, air-purifying chamber 13 is connected to by clean coal vent hole 211 with dirt pocket 11.
21 middle part of upper insulation plate in the utility model embodiment is provided with the upper through-hole passed through for inlet ductwork 30,
Multiple clean coal vent holes 211 are provided on this around through-hole.The upper end (blind end) of above-mentioned ceramic screen pipe 40 is fixed or removable
It is connected to unloading on upper insulation plate 21, and is not interfered with clean coal vent hole 211.
22 middle part of above-mentioned lower insulation plate is provided with lower through-hole, is provided on lower through-hole periphery multiple corresponding with ceramic screen pipe 40
Perforation.The lower end of inlet ductwork 30 is placed in across lower through-hole in dust collection chamber 12, and between inlet ductwork 30 and lower through-hole
Sealing.The lower end (open end) of ceramic screen pipe 40 passes through corresponding perforation and can be connected with the lower end of inlet ductwork 30, ceramics
It is also sealed between the lower end of chimney filter 40 and corresponding perforation, to ensure that dust collection chamber 12 is not connected to each other with dirt pocket 11.
Further, ceramic screen pipe 40 is a plurality of, in dirt pocket 11 uniformly at intervals, the outer surface of every ceramic screen pipe 40
It is both provided with a plurality of anode line, a cathode needle 50 is both provided in every ceramic screen pipe 40.Cathode needle 50 and ceramic screen pipe 40
Coaxially.Above-mentioned a plurality of anode line is compounded in corresponding ceramic screen pipe 40 in the utility model embodiment, above-mentioned cathode needle 50 with
40 inner wall of ceramic screen pipe does not contact each other.The upper end of above-mentioned cathode needle 50 and the upper end of anode line are respectively with corresponding for electric installation
Connection.
Dust collection chamber 12 is taper, and the diameter along dust collection chamber 12 in top-down direction is gradually reduced.The miner diameter end of dust collection chamber 12
(bottom of corresponding shell of dust remover 10) is ash discharging hole 15.Ash discharging hole 15 is provided with the ash discharge control for controlling the opening and closing of ash discharging hole 15
Valve processed.Above-mentioned ash discharge control valve is closed under normal conditions.After the blast furnace ash in dust collection chamber 12 is saved bit by bit to a certain extent,
It opens ash discharge control valve and carries out ash discharge.
Preferably, the inlet control valve for controlling the opening and closing of inlet ductwork 30 is provided in inlet ductwork 30.By this into
Mouth control valve can control inlet ductwork opening and closing.When inlet ductwork 30 is opened, electrostatic blast furnace gas dust collector is dusted behaviour
Make, when inlet ductwork 30 is closed, electrostatic blast furnace gas dust collector can carry out reverse gas cleaning operation.
The operation principle of the utility model embodiment is：
Dust-laden coal gas is entered by the inlet ductwork 30 at the top of shell of dust remover 10, then from the ceramic filtering for being compounded with anode line
40 lower part of pipe enters inside ceramic screen pipe 40, and negative electrical charge, negatively charged dust-laden coal are assigned to dust-laden coal gas by cathode needle 50
Gas is filtered by being compounded with the ceramic screen pipe 40 of anode line, bulky grain by ceramic screen pipe 40, and molecule passes through ceramic screen pipe
Compound anode line is collected on 40, is merged in air-purifying chamber 13 by the purified gas after ceramic screen pipe 40, is then gone out by purified gas
Entrance 14 flows out.
It waits for that ceramic screen pipe 40 reaches busy hour, draws purified gas and enter inside deduster from purified gas entrance 14, instead
Blow the blast furnace ash being enriched in inside ceramic screen pipe 40 off, the blast furnace ash fallen is collected and is discharged in dust collection chamber 12.
The utility model embodiment additionally provides a kind of dust removal method, is carried out using above-mentioned electrostatic blast furnace gas dust collector
Dedusting, dust removal method include the following steps：
Step 10 is imported pending coal gas by inlet ductwork 30；
Step 20, pending coal gas are entered by 40 lower end of ceramic screen pipe in ceramic screen pipe 40 in dust collection chamber 12, and are led to
It crosses cathode needle 50 and assigns negative electrical charge, the pending coal gas with negative electrical charge forms half purified gas after the filtering of ceramic screen pipe 40；
When step 30, half purified gas pass through ceramic screen pipe 40, purified gas is formed after anode line electrostatic precipitation and by clean coal
Gas entrance 14 exports.
The utility model embodiment further provides a kind of ash removal method, using above-mentioned electrostatic blast furnace gas dust collector
It is dusted, ash removal method includes the following steps：
Purified gas is imported by purified gas entrance 14 in dirt pocket 11 and carries out soot blowing to ceramic screen pipe 40 by step 10；
Dust in step 20, ceramic screen pipe 40, which is fallen by the lower end of ceramic screen pipe 40 in dust collection chamber 12, to be collected and is discharged.
It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects：This reality
With in new embodiment, dust-laden coal gas dust removal is carried out by the way of filtering and electrostatic precipitation combination, can effectively improve dedusting
Efficiency and filtering accuracy, the wherein filtering accuracy in the utility model embodiment can reach 3mg/Nm3Below.Simultaneously because ceramic
The temperature of chimney filter 40 being resistant to is higher, can with low temperature use can also applied at elevated temperature, for dust-laden coal gas temperature be applicable in
Face is more extensive.
The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it
With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection domain and modification, should all still fall within
The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical solution
Between, between technical solution and technical solution use can be freely combined.
Claims (8)
1. a kind of electrostatic blast furnace gas dust collector, which is characterized in that including：
Shell of dust remover (10) has inner cavity；
Insulation board component is arranged in the interior intracavitary and the inner cavity is vertically divided into dirt pocket (11) and dust collection chamber
(12), purified gas entrance (14), purified gas entrance (14) and dirt pocket (11) are provided at the top of shell of dust remover (10)
Connection；
Inlet ductwork (30), arrival end are located at outside the top of shell of dust remover (10), and the outlet end of inlet ductwork (30), which passes through, removes
Dirt room (11) is simultaneously interior positioned at dust collection chamber (12)；
Ceramic screen pipe (40), in dirt pocket (11), ceramic screen pipe (40) is the tubular structure of upper end closed lower ending opening for setting,
Ceramic screen pipe (40) is fixed on the insulation board component, and the lower end of ceramic screen pipe (40) pass through the insulation board component and with
Dust collection chamber (12) is connected to, and anode line is provided on the outer surface of ceramic screen pipe (40)；
Cathode needle (50), setting is in ceramic screen pipe (40).
2. electrostatic blast furnace gas dust collector according to claim 1, which is characterized in that the insulation board component includes upper exhausted
Listrium (21) and lower insulation plate (22), upper insulation plate (21) and lower insulation plate (22) by the inner cavity be vertically divided into according to
Air-purifying chamber (13), dirt pocket (11) and the dust collection chamber (12) of secondary setting are provided with multiple clean coal vent holes on upper insulation plate (21)
(211), air-purifying chamber (13) is connected to by clean coal vent hole (211) with dirt pocket (11).
3. electrostatic blast furnace gas dust collector according to claim 1, which is characterized in that ceramic screen pipe (40) be it is a plurality of,
In dirt pocket (11) uniformly at intervals, the outer surface of every ceramic screen pipe (40) is both provided with a plurality of anode line, every ceramics
It is both provided with a cathode needle (50) in chimney filter (40).
4. electrostatic blast furnace gas dust collector according to claim 3, which is characterized in that cathode needle (50) and ceramic screen pipe
(40) coaxial.
5. electrostatic blast furnace gas dust collector according to claim 1, which is characterized in that the bottom of shell of dust remover (10) is set
It is equipped with ash discharging hole (15), ash discharging hole (15) is connected to dust collection chamber (12).
6. electrostatic blast furnace gas dust collector according to claim 5, which is characterized in that ash discharging hole (15) is provided with for controlling
The ash discharge control valve of ash discharging hole (15) opening and closing processed.
7. electrostatic blast furnace gas dust collector according to claim 1, which is characterized in that dust collection chamber (12) be taper, along by
Diameter up to lower direction dust collection chamber (12) is gradually reduced.
8. electrostatic blast furnace gas dust collector according to claim 1, which is characterized in that be arranged in inlet ductwork (30) useful
In the inlet control valve that control inlet ductwork (30) is opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710674.6U CN207755926U (en) | 2017-12-11 | 2017-12-11 | Electrostatic blast furnace gas dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710674.6U CN207755926U (en) | 2017-12-11 | 2017-12-11 | Electrostatic blast furnace gas dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207755926U true CN207755926U (en) | 2018-08-24 |
Family
ID=63190347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721710674.6U Active CN207755926U (en) | 2017-12-11 | 2017-12-11 | Electrostatic blast furnace gas dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207755926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899351A (en) * | 2017-12-11 | 2018-04-13 | 中冶京诚工程技术有限公司 | Electrostatic blast furnace gas dust remover, dust removing method and dust removing method |
-
2017
- 2017-12-11 CN CN201721710674.6U patent/CN207755926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899351A (en) * | 2017-12-11 | 2018-04-13 | 中冶京诚工程技术有限公司 | Electrostatic blast furnace gas dust remover, dust removing method and dust removing method |
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