CN108311285B - Fluid protection discharge electrode for electric precipitation and method - Google Patents
Fluid protection discharge electrode for electric precipitation and method Download PDFInfo
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- CN108311285B CN108311285B CN201810302982.8A CN201810302982A CN108311285B CN 108311285 B CN108311285 B CN 108311285B CN 201810302982 A CN201810302982 A CN 201810302982A CN 108311285 B CN108311285 B CN 108311285B
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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
- B03C3/34—Constructional details or accessories or operation thereof
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
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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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/06—Ionising electrode being a needle
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Abstract
A fluid protection discharge electrode for electric dust removal comprises a discharge electrode, wherein a discharge part is arranged on the discharge electrode, a fluid jet orifice (2) is arranged near the discharge part, the fluid jet orifice (2) faces the discharge part of the discharge electrode or faces a space around the discharge part, fluid jetted by the fluid jet orifice (2) forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or around the discharge part, the fluid jetted by the fluid jet orifice (2) is not used for removing dust on the dust collection electrode, and the fluid jet orifice (2) is connected with a fluid inlet (4) through a fluid conveying channel (3). The purpose of the present invention is to provide a fluid protection discharge electrode for electric dust removal and a method thereof, which can prevent dust containing liquid components from adhering to and adsorbing on the discharge portion of the discharge electrode, prevent the discharge portion of the discharge electrode from being thoroughly covered with dust and from being severely rusted, and further can maintain high dust removal efficiency for a long period of time even when the dust containing liquid components is treated by an electric dust remover.
Description
Technical Field
The invention relates to a fluid protection discharge electrode for electric precipitation and a method thereof.
Background
In the steel slag treatment process of a steel mill, water spraying and cooling are needed to be carried out on steel slag just discharged from the furnace, and dust on the steel slag site is needed to be removed, but because the dust on the steel slag site of the steel mill contains a large amount of liquid components such as water or various liquid organic matters, when the dust in the air on the steel slag site of the steel mill is purified by using an electric dust remover, a large amount of dust containing the liquid components can move to a discharge part of a discharge electrode and be firmly adhered and adsorbed on the discharge part of the discharge electrode, and because the dust is difficult to remove due to vibration and airflow soot blowing in the prior art, the discharge part of the discharge electrode is thoroughly covered by the dust, serious corrosion occurs, the discharge capacity is thoroughly lost, and dust in dust-containing gas passing through the electric dust remover cannot be charged, so that the dust removing efficiency of the electric dust remover is drastically reduced. Therefore, when the existing electric dust remover is used for purifying dust in the field air of steel slag in a steel mill, the discharge electrode needs to be replaced for 2 and 3 months, and in the dust removing process, the dust removing efficiency is high at the early stage after the discharge electrode is replaced, and then the dust removing efficiency is rapidly reduced or even completely fails.
Disclosure of Invention
The invention aims to provide a fluid protection discharge electrode for electric dust removal and a method thereof, which can prevent dust containing liquid components from adhering and adsorbing on a discharge part of a discharge electrode, prevent the discharge part of the discharge electrode from being thoroughly covered by the dust and from generating serious rust, enable the dust passing through the liquid components of an electric dust remover to be charged in a large amount, and further enable the electric dust remover to maintain high dust removal efficiency for a long time when the electric dust remover is used for treating the dust containing the liquid components.
The invention relates to a fluid protection discharge electrode for electric dust removal, which comprises a discharge electrode, wherein a discharge part is arranged on the discharge electrode, a fluid jet orifice is arranged near the discharge part and faces the discharge part of the discharge electrode or faces a space around the discharge part, fluid jetted from the fluid jet orifice forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or around the discharge part, the fluid jetted from the fluid jet orifice is not used for removing dust on a dust collecting electrode, and the fluid jet orifice is connected with a fluid inlet through a fluid conveying channel.
Preferably, the discharging part is a discharging needle, the inner end of the discharging needle is fixedly connected with the side wall of the conducting rod, the fluid is air or water, and the air or water conveyed by the fluid conveying channel is not used for removing dust on the dust collecting electrode of the dust removing electrode.
Preferably, the fluid conveying channel is arranged in the conducting rod, a plurality of fluid injection ports are respectively arranged near each discharge needle, and the plurality of fluid injection ports are positioned on the side wall of the conducting rod and are arranged around the connecting part of the corresponding discharge needle and the conducting rod.
Preferably, the cross section of the discharge needle is elliptical, the elliptical cross section of the discharge needle gradually reduces from inside to outside to form a needle point, and fluid injection ports are respectively arranged near two ends of a major axis and two ends of a minor axis of the elliptical cross section of the discharge needle.
Preferably, the major axis of the elliptical cross section of the inner end of the discharge needle is 1 mm-3 mm, the minor axis of the elliptical cross section is 0.5 mm-1.2 mm, the length of the discharge needle is 3 mm-10 mm, the left and right extending directions of the adjacent discharge needles on the conductive rod are opposite, the distance between the adjacent discharge needles on the conductive rod is 10 mm-50 mm, the fluid jet orifice is in a bent arc-shaped strip shape, and the width of the fluid jet orifice is 0.05 mm-0.2 mm.
Preferably, the inner end of the discharge needle is fixed on the outer end face of a disc-shaped blocking block, the blocking block is inserted into a blocking block mounting hole on the side wall of the conductive rod, the inner end of the blocking block mounting hole is communicated with the fluid conveying channel, and the fluid jet orifice is positioned on the blocking block.
Preferably, the axis of each discharge needle is located in the left-right horizontal direction.
The method for protecting the discharge electrode by the fluid for electric precipitation comprises the following steps:
A. a fluid jet orifice is arranged near the discharge part of the discharge electrode of the electric dust collector, and the fluid jet orifice faces the discharge part of the discharge electrode or faces the space around the discharge part;
B. connecting the fluid jet port with the fluid inlet through the fluid conveying channel;
C. in the process of dust removal of the electrostatic dust collector, the fluid jet port continuously jets fluid towards the discharge part of the discharge electrode or the periphery thereof, the fluid jetted by the fluid jet port forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or the periphery thereof, and the fluid jetted by the fluid jet port is not used for removing dust on the dust collecting electrode of the dust removing electrode.
Preferably, the discharge part is a discharge needle, the inner end of each discharge needle is fixedly connected with the side wall of the conductive rod, the fluid is air or water, and the air or water conveyed by the fluid conveying channel is not used for removing dust on the dust collecting electrode of the dust collecting electrode.
Preferably, the fluid conveying channel is arranged in the conducting rod, a plurality of fluid injection ports are respectively arranged near each discharge needle, and the plurality of fluid injection ports are positioned on the side wall of the conducting rod and are arranged around the connecting part of the corresponding discharge needle and the conducting rod.
The invention relates to a fluid protection discharge electrode for electric dust removal and a method thereof, wherein a discharge part is arranged on the discharge electrode, a fluid jet orifice is arranged near the discharge part, the fluid jet orifice faces the discharge part of the discharge electrode or faces a space around the discharge part, fluid jetted by the fluid jet orifice forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or around the discharge part, the fluid jetted by the fluid jet orifice is not used for removing dust on a dust collecting electrode, and the fluid jet orifice is connected with a fluid inlet through a fluid conveying channel. Therefore, the fluid protection discharge electrode for electric dust removal has the characteristics of avoiding dust containing liquid components from adhering and adsorbing on the discharge part of the discharge electrode, preventing the discharge part of the discharge electrode from being thoroughly covered by the dust and generating serious rust, enabling the dust containing the liquid components passing through the electric dust remover to be charged in a large amount, and further enabling the electric dust remover to maintain high dust removal efficiency for a long time when the dust containing the liquid components is treated.
The fluid-protected discharge electrode for electric precipitation and the method according to the present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view showing a schematic structure of a fluid-protected discharge electrode for electric precipitation according to the present invention;
FIG. 2 is an enlarged front view of a discharge needle portion of the fluid-protected discharge electrode for electric precipitation of the present invention;
fig. 3 is a side view of fig. 2.
Detailed Description
As shown in fig. 1, 2 and 3, the fluid protection discharge electrode for electric dust removal of the present invention comprises a discharge electrode having a discharge portion thereon, a fluid ejection port 2 being provided in the vicinity of the discharge portion, the fluid ejection port 2 being directed toward the discharge portion of the discharge electrode or toward a space around the discharge portion, the fluid ejected from the fluid ejection port 2 forming a fluid curtain separating dust-containing gas on the surface of or around the discharge portion, the fluid ejected from the fluid ejection port 2 not being used for cleaning dust on the dust collection electrode, the fluid ejection port 2 being connected to a fluid inlet 4 through a fluid delivery passage 3.
As a further improvement of the invention, the discharge part is a discharge needle 1, the inner end of the discharge needle 1 is fixedly connected with the side wall of the conductive rod 5, the fluid is air or water, and the air or water conveyed by the fluid conveying channel 3 is not used for removing dust on the dust collecting electrode.
As a further improvement of the present invention, the fluid delivery channel 3 is provided in the conductive rod 5, and a plurality of fluid injection ports 2 are respectively provided in the vicinity of each discharge needle 1, and the plurality of fluid injection ports 2 are provided on the side wall of the conductive rod 5 and around the connection portion of the corresponding discharge needle 1 and the conductive rod 5.
As a further improvement of the present invention, the cross section of the discharge needle 1 is elliptical, the elliptical cross section of the discharge needle 1 gradually reduces from inside to outside to form a needle tip, and the fluid injection ports 2 are provided near both ends of the major axis and near both ends of the minor axis of the elliptical shape of the discharge needle 1, respectively.
As a further improvement of the invention, the major axis of the elliptical cross section of the inner end of the discharge needle 1 is 1 mm-3 mm, the minor axis of the elliptical cross section is 0.5 mm-1.2 mm, the length of the discharge needle 1 is 3 mm-10 mm, the left and right extending directions of the adjacent discharge needles 1 on the conductive rod 5 are opposite, the distance between the adjacent discharge needles 1 on the conductive rod 5 is 10 mm-50 mm, the fluid jet orifice 2 is in a bent arc-shaped long strip shape, and the width of the fluid jet orifice 2 is 0.05 mm-0.2 mm.
As a further improvement of the invention, the inner end of the discharge needle 1 is fixed on the outer end surface of a disc-shaped blocking block 6, the blocking block 6 is inserted into a blocking block mounting hole on the side wall of the conducting rod 5, the inner end of the blocking block mounting hole is communicated with the fluid conveying channel 3, and the fluid jet orifice 2 is positioned on the blocking block 6.
As a further improvement of the present invention, the axis of each of the discharge needles 1 is located in the horizontal direction.
The method for protecting the discharge electrode by the fluid for electric precipitation comprises the following steps:
A. a fluid ejection port 2 is provided near a discharge portion of the discharge electrode of the electric dust collector, the fluid ejection port 2 facing the discharge portion of the discharge electrode or facing a space around the discharge portion;
B. connecting the fluid injection port 2 with the fluid inlet 4 through the fluid delivery channel 3;
C. in the process of dust removal of the electrostatic precipitator, the fluid jet orifice 2 is enabled to continuously jet fluid towards the discharge part of the discharge electrode or the periphery thereof, the fluid jetted by the fluid jet orifice 2 forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or the periphery thereof, and the fluid jetted by the fluid jet orifice 2 is not used for removing dust on the dust collecting electrode of the dust removing electrode. Therefore, the fluid protection discharge electrode and the method for electric dust removal have the characteristics of avoiding dust containing liquid components from adhering to and being adsorbed on the discharge part of the discharge electrode, preventing the discharge part of the discharge electrode from being thoroughly covered by the dust and generating serious rust, enabling the dust containing the liquid components passing through the electric dust remover to be charged in a large amount, and further enabling the electric dust remover to maintain high dust removal efficiency for a long time when the dust containing the liquid components is treated.
As a further improvement of the invention, the discharge part is a discharge needle 1, the inner end of each discharge needle 1 is fixedly connected with the side wall of the conductive rod 5, the fluid is air or water, and the air or water conveyed by the fluid conveying channel 3 is not used for removing dust on the dust collecting electrode.
As a further improvement of the present invention, the fluid delivery channel 3 is provided in the conductive rod 5, and a plurality of fluid injection ports 2 are respectively provided in the vicinity of each discharge needle 1, and the plurality of fluid injection ports 2 are provided on the side wall of the conductive rod 5 and around the connection portion of the corresponding discharge needle 1 and the conductive rod 5.
Claims (10)
1. The utility model provides a fluid protection discharge electrode for electric precipitation, includes discharge electrode, has discharge part on the discharge electrode, its characterized in that: the discharge part is provided with a fluid jet orifice (2) near the discharge part, the fluid jet orifice (2) faces the discharge part of the discharge electrode or faces the space around the discharge part, the fluid jetted by the fluid jet orifice (2) forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or around the discharge part, the fluid jetted by the fluid jet orifice (2) is not used for removing dust on the dust collecting electrode, and the fluid jet orifice (2) is connected with a fluid inlet (4) through a fluid conveying channel (3).
2. The fluid-protected discharge electrode for electric precipitation according to claim 1, wherein: the discharging part is a discharging needle (1), the inner end of the discharging needle (1) is fixedly connected with the side wall of the conducting rod (5), the fluid is air or water, and the air or water conveyed by the fluid conveying channel (3) is not used for removing dust on the dust collecting electrode of the dust removing electrode.
3. The fluid-protected discharge electrode for electric precipitation according to claim 2, wherein: the fluid conveying channel (3) is arranged in the conducting rod (5), a plurality of fluid injection ports (2) are respectively arranged near each discharge needle (1), and the fluid injection ports (2) are arranged on the side wall of the conducting rod (5) and encircle the connection part of the corresponding discharge needle (1) and the conducting rod (5).
4. A fluid-protected discharge electrode for electric precipitation according to claim 3, wherein: the cross section of the discharge needle (1) is elliptic, the elliptic cross section of the discharge needle (1) gradually reduces to a needle point from inside to outside, and fluid injection ports (2) are respectively arranged near two ends of a long axis and two ends of a short axis of the elliptic shape of the discharge needle (1).
5. The fluid-protected discharge electrode for electric precipitation according to claim 4, wherein: the long axis of the elliptical cross section of the inner end of the discharge needle (1) is 1 mm-3 mm, the short axis of the elliptical cross section is 0.5 mm-1.2 mm, the length of the discharge needle (1) is 3 mm-10 mm, the left and right extending directions of the adjacent discharge needles (1) on the conductive rod (5) are opposite, the distance between the adjacent discharge needles (1) on the conductive rod (5) is 10 mm-50 mm, the fluid jet orifice (2) is in an arc-shaped long strip shape, and the width of the fluid jet orifice (2) is 0.05 mm-0.2 mm.
6. The fluid protection discharge electrode for electric precipitation according to any one of claims 1 to 5, wherein: the inner end of the discharge needle (1) is fixed on the outer end face of a disc-shaped blocking block (6), the blocking block (6) is inserted into a blocking block mounting hole on the side wall of the conducting rod (5), the inner end of the blocking block mounting hole is communicated with the fluid conveying channel (3), and the fluid jet orifice (2) is positioned on the blocking block (6).
7. The fluid-protected discharge electrode for electric precipitation according to claim 6, wherein: the axis of each discharge needle (1) is respectively positioned in the left-right horizontal direction.
8. The method for protecting the discharge electrode by the fluid for electric precipitation is characterized by comprising the following steps: the method comprises the following steps:
A. a fluid jet (2) is arranged near the discharge part of the discharge electrode of the electric dust collector, and the fluid jet (2) faces the discharge part of the discharge electrode or faces the space around the discharge part;
B. connecting the fluid injection port (2) with the fluid inlet (4) through the fluid conveying channel (3);
C. in the process of dust removal of the electrostatic dust collector, the fluid jet orifice (2) continuously jets fluid towards the discharge part of the discharge electrode or the periphery thereof, the fluid jetted by the fluid jet orifice (2) forms a fluid curtain for isolating dust-containing gas on the surface of the discharge part or the periphery thereof, and the fluid jetted by the fluid jet orifice (2) is not used for removing dust on the dust collecting electrode of the dust removing electrode.
9. The method of protecting a discharge electrode with a fluid for electric precipitation according to claim 8, wherein: the discharge part is a discharge needle (1), the inner end of each discharge needle (1) is fixedly connected with the side wall of the conductive rod (5), the fluid is air or water, and the air or water conveyed by the fluid conveying channel (3) is not used for removing dust on the dust collecting electrode of the dust collecting electrode.
10. The method of protecting a discharge electrode with a fluid for electric precipitation according to claim 9, wherein: the fluid conveying channel (3) is arranged in the conducting rod (5), a plurality of fluid injection ports (2) are respectively arranged near each discharge needle (1), and the fluid injection ports (2) are arranged on the side wall of the conducting rod (5) and encircle the connection part of the corresponding discharge needle (1) and the conducting rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810302982.8A CN108311285B (en) | 2018-04-06 | 2018-04-06 | Fluid protection discharge electrode for electric precipitation and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810302982.8A CN108311285B (en) | 2018-04-06 | 2018-04-06 | Fluid protection discharge electrode for electric precipitation and method |
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| Publication Number | Publication Date |
|---|---|
| CN108311285A CN108311285A (en) | 2018-07-24 |
| CN108311285B true CN108311285B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810302982.8A Active CN108311285B (en) | 2018-04-06 | 2018-04-06 | Fluid protection discharge electrode for electric precipitation and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420755A (en) * | 2019-09-02 | 2019-11-08 | 宁夏马连富电力科技有限公司 | Full liquid dust arrest pole electric dust-collecting device |
| CN110404682A (en) * | 2019-09-02 | 2019-11-05 | 宁夏马连富电力科技有限公司 | Dropping liquid dust electric precipitator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10244183A (en) * | 1997-03-06 | 1998-09-14 | Mitsubishi Heavy Ind Ltd | Electrostatic precipitator and method of backwashing and scavenging same |
| JPH11114449A (en) * | 1997-10-15 | 1999-04-27 | Shinwa Tec Kk | Electrode washing mechanism for electric precipitator |
| JP2001232237A (en) * | 2000-02-25 | 2001-08-28 | Mitsubishi Heavy Ind Ltd | Wet type electric dust collecting apparatus |
| KR100901143B1 (en) * | 2008-05-13 | 2009-06-04 | 한국기계연구원 | Electric precipitation |
| CN207823206U (en) * | 2018-04-06 | 2018-09-07 | 孟金来 | Electric precipitation protected fluid discharge electrode |
-
2018
- 2018-04-06 CN CN201810302982.8A patent/CN108311285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10244183A (en) * | 1997-03-06 | 1998-09-14 | Mitsubishi Heavy Ind Ltd | Electrostatic precipitator and method of backwashing and scavenging same |
| JPH11114449A (en) * | 1997-10-15 | 1999-04-27 | Shinwa Tec Kk | Electrode washing mechanism for electric precipitator |
| JP2001232237A (en) * | 2000-02-25 | 2001-08-28 | Mitsubishi Heavy Ind Ltd | Wet type electric dust collecting apparatus |
| KR100901143B1 (en) * | 2008-05-13 | 2009-06-04 | 한국기계연구원 | Electric precipitation |
| CN207823206U (en) * | 2018-04-06 | 2018-09-07 | 孟金来 | Electric precipitation protected fluid discharge electrode |
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| CN108311285A (en) | 2018-07-24 |
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