CN112459823B - Energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device - Google Patents

Energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device Download PDF

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Publication number
CN112459823B
CN112459823B CN202011425476.1A CN202011425476A CN112459823B CN 112459823 B CN112459823 B CN 112459823B CN 202011425476 A CN202011425476 A CN 202011425476A CN 112459823 B CN112459823 B CN 112459823B
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China
Prior art keywords
dust
dust collection
dust collecting
box
supporting rod
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Active
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CN202011425476.1A
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Chinese (zh)
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CN112459823A (en
Inventor
黄锋
邓世灵
滕伟
郑艾辰
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Chongqing Jiaotong University
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Chongqing Jiaotong University
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/006—Ventilation at the working face of galleries or tunnels
    • 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
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • 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
    • B03C3/45—Collecting-electrodes
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
    • 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
    • B03C3/66—Applications of electricity supply techniques
    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/743—Cleaning the electrodes by using friction, e.g. by brushes or sliding elements
    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/78—Cleaning the electrodes by washing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • E21F5/04—Spraying barriers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/20—Drawing-off or depositing dust

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Electrostatic Separation (AREA)

Abstract

The invention discloses an energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device, and relates to the technical field of dust removal. The dust collection device comprises a dust collection box, wherein a dust collection plate is arranged on the inner surface wall of the dust collection box, a supporting rod is arranged in the dust collection box, a corona round rod is fixedly connected to the center of the supporting rod, cathode needles distributed at equal intervals are fixedly connected to one end of the corona round rod, a dust collection scraping plate is arranged on the surface of the supporting rod, the dust collection scraping plate is in sliding connection with the supporting rod, and traction motors are arranged at two ends of the supporting rod. The invention has simple structure, energy conservation and environmental protection, belongs to a tubular horizontal electrostatic precipitator, increases the dust collection area, increases the dust collection efficiency, innovatively uses the design of horizontally arranging the dry type and wet type dust collection, reduces the height of the device, increases the clearance of a tunnel, ensures the dry working environment in the device to a great extent while not affecting the dust collection effect, and prolongs the service life of the device.

Description

Energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device
Technical Field
The invention belongs to the technical field of dust removal, and particularly relates to an energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device.
Background
Along with the rapid development of the economy in China, the construction of various infrastructures also rapidly advances, and at present, china becomes the country with the largest number of tunnel seats and tunnel mileage. The drilling and blasting method is used as a main construction method for rock tunnel excavation, a large amount of dust is easily generated in the construction process, if the dust is improperly treated, the dust can be diffused in the tunnel, the construction environment is seriously polluted, and the pulmonary fibrosis can be caused by long-term suction of fine dust, so that the physical health of constructors is seriously influenced. At present, the dustproof and dust-falling technology in China is not perfect, and the most adopted method is to discharge dust generated by the tunnel face as soon as possible through a ventilation system, so that the dust in the tunnel is diluted. Although the working environment of the tunnel face can be improved by the method, dust can pollute the whole tunnel under the action of wind flow. As the face continues to go deeper, ventilation over long distances places higher demands on the performance of the equipment, while power consumption is also greater. Practice proves that the purification effect is not obvious by adopting the traditional ventilation and dust fall technology, and the dust in the tunnel cannot be effectively controlled.
Disclosure of Invention
The invention aims to provide an energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device, which solves the existing problems: the dust prevention and fall technology in China is not perfect, and the most adopted method is to discharge dust generated by the tunnel face as soon as possible through a ventilation system, so that the dust in the tunnel is diluted. Although the working environment of the tunnel face can be improved by the method, dust can pollute the whole tunnel under the action of wind flow. As the face continues to go deeper, ventilation over long distances places higher demands on the performance of the equipment, while power consumption is also greater. Practice proves that the purification effect is not obvious by adopting the traditional ventilation and dust fall technology, and the dust in the tunnel cannot be effectively controlled.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device which comprises a dust removal box, wherein a dust collecting plate is arranged on the inner surface wall of the dust removal box, a supporting rod is arranged in the dust removal box, a corona round rod is fixedly connected to the center of the supporting rod, cathode needles distributed at equal intervals are fixedly connected to one end of the corona round rod, dust collecting scraping plates are arranged on the surface of the supporting rod, the dust collecting scraping plates are in sliding connection with the supporting rod, traction motors are arranged at two ends of the supporting rod, two electric control valves are arranged on the inner bottom wall of the dust removal box respectively, a plurality of water mist spray heads are arranged on the two sides of the dust collecting plate, a plurality of water mist spray heads are respectively arranged right above corresponding electric control valves, a dust collection box is arranged in the dust removal box, the dust collection box is arranged right below the electric control valves, a filter screen, fan blades and a rectification grid are arranged in the dust removal box, the filter screen, the fan blades and the rectification grid are all arranged on the same side of the supporting rod, and the fan blades are arranged between the filter screen and the rectification grid.
Further, an insulating plate is arranged on the outer surface of the dust collecting plate, and the insulating plate is fixedly connected with the outer surface of the dust collecting plate.
Further, the outer surface of the dust collection scraping plate is provided with a sponge, and the sponge is sealed with the outer surface of the dust collection scraping plate.
Further, the cross section of the dust collecting plate is a circular ring.
Further, the dust collection scraping plate is annular.
Further, the corona round bar is of a solid structure.
Further, the dust removing box is rectangular in shape.
The invention has the following beneficial effects:
1. the invention has simple structure, energy conservation and environmental protection, belongs to a tubular horizontal electrostatic precipitator, and increases the dust collection area and the dust collection efficiency by the tubular dust collection plate. The tubular electrostatic precipitator adopts vertical arrangement at present, and wet dust removal can lead to the device height to be too high like this, makes the device in the moist state for a long time. The device provided by the utility model innovatively uses the design of horizontal arrangement dry-type and wet-type dust removal, reduces the height of the device, increases the clearance of a tunnel, ensures the dry working environment in the device to a great extent while not affecting the dust collection effect, and prolongs the service life of the device.
2. The invention adopts the electric control valve to the ash discharge port, greatly reduces the air leakage condition of the device, improves the dust collection effect of the device, has flexible installation position, can be arranged at the corresponding position according to the requirement, can be independently placed in a tunnel or can be placed on a cantilever tunneller to move along with a vehicle, and improves the dust control effect.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view showing the connection structure of the dust collecting plate, the corona round bar and the cathode needle in the present invention;
fig. 3 is an enlarged view of the invention at a in fig. 1.
In the drawings, the list of components represented by the various numbers is as follows:
1. a filter screen; 2. a fan blade; 3. a rectifying gate; 4. an electric control valve; 5. a water mist spray head; 6. a dust removal box; 7. a corona round bar; 8. a dust collecting plate; 9. a support rod; 10. a cathode needle; 11. a dust collection scraping plate; 12. a dust collection box; 13. a traction motor; 14. an insulating plate; 15. and (3) a sponge.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the invention discloses an energy-saving and environment-friendly dry-wet combined tunnel construction dust removing device, which comprises a dust removing box 6, wherein a dust collecting plate 8 is arranged on the inner surface wall of the dust removing box 6, a supporting rod 9 is arranged in the dust removing box 6, a corona round rod 7 is fixedly connected to the center of the supporting rod 9, one end of the corona round rod 7 is fixedly connected with cathode needles 10 which are distributed at equal intervals, a dust collecting scraping disc 11 is arranged on the surface of the supporting rod 9, the dust collecting scraping disc 11 is in sliding connection with the supporting rod 9, traction motors 13 are arranged at the two ends of the supporting rod 9, the electrostatic field intensity formed by the corona round rod 7 is uniform, the adsorption area of the dust collecting plate 8 is increased, the adsorption of dust is facilitated, the cathode needles 10 play a role of enhancing the air ionization efficiency, so that the adsorption effect of the dust is improved, two electric control valves 4 are respectively arranged on the two sides of the dust collecting plate 8, a plurality of spray heads 5 are arranged on the inner top wall of the dust removing box 6, the spray heads 5 are respectively arranged right above the corresponding electric control valves 4, when the dust collecting scraping disc 11 slides to the two ends, the electric control valves 5 are opened, and when the two electric control valves 5 are closed, and the electric control heads 11 work and the work and are stopped. Thus, not only the recovery of dust is ensured, but also the tightness of the device is ensured to a great extent, the dust collection effect of the device is enhanced, the dust collection box 12 is arranged in the dust collection box 6, the dust collection box 12 is arranged right below the electric control valve 4, the dust collection box 12 is used for storing collected dust, the filter screen 1, the fan blade 2 and the rectification grid 3 are arranged in the dust collection box 6, the filter screen 1, the fan blade 2 and the rectification grid 3 are all arranged on the same side of the support rod 9, the fan blade 2 is arranged between the filter screen 1 and the rectification grid 3, the filter screen 1 can filter out some impurities with larger body types, the impurities are prevented from blocking due to the fact that the impurities enter the device, and the rectification grid 3 plays a role of carding air entering the device, so that the air flow is more uniform.
The outer surface of the dust collecting plate 8 is provided with an insulating plate 14, and the insulating plate 14 is fixedly connected with the outer surface of the dust collecting plate 8.
The outer surface of the dust collecting scraping plate 11 is provided with a sponge 15, the sponge 15 is sealed with the outer surface of the dust collecting scraping plate 11, and the cross section of the dust collecting plate 8 is a circular ring.
The dust collection scraping plate 11 is in a circular ring shape, the inside of the corona round rod 7 is in a solid structure, the dust collection box 6 is in a rectangular shape, and the dust collection box 6 is in a strip shape and is convenient for collecting dust.
One specific application of this embodiment is: dust enters the dust box 6 through the filter screen 1 and the rectification grating 3, the dust with larger volume can be filtered through the action of the filter screen 1 and the rectification grating 3, and the dust with smaller volume enters the dust box 6, at this time, because the corona round bar 7 is arranged at the center of the supporting rod 9, the intensity of the electrostatic field formed by the corona round bar is uniform, the adsorption area of the dust collecting plate 8 is increased, the adsorption of the dust is facilitated, the cathode needle 10 can strengthen the efficiency of air ionization, thereby further improving the adsorption effect of the dust, the dust collecting scraping plate 11 slides back and forth on the surface of the supporting rod 9 under the action of the traction motor 13, the dust adsorbed on the surface of the dust collecting plate 8 is collected through the dust collecting scraping plate 11 and falls into the electric control valve 4, the electric control valve 4 is opened through the sensing device in the electric control valve 4, and when the electric control valve 4 is opened, the water spray nozzle 5 sprays water so as to drop the mixture of the dust and water into the dust collecting box 12 through the electric control valve 4, the dust collecting the dust through the dust collecting box 12, and then the clean air is discharged through the tail of the dust collecting box 6, and the dust collecting work of the pair of air is completed.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (1)

1. The utility model provides an energy-concerving and environment-protective dry and wet combination formula tunnel construction dust collector, includes dust removal case (6), its characterized in that: the inner surface wall of the dust removal box (6) is provided with a dust collection plate (8), the dust removal box (6) is internally provided with a support rod (9), the center of the support rod (9) is fixedly connected with a corona round rod (7), one end of the corona round rod (7) is fixedly connected with cathode needles (10) distributed at equal intervals, the surface of the support rod (9) is provided with a dust collection scraping plate (11), the dust collection scraping plate (11) is in sliding connection with the support rod (9), both ends of the support rod (9) are respectively provided with a traction motor (13), the inner bottom wall of the dust removal box (6) is provided with two electric control valves (4), the two electric control valves (4) are respectively arranged at two sides of the dust collecting plate (8), a plurality of water mist spray heads (5) are arranged on the inner top wall of the dust removing box (6), a plurality of water mist spray heads (5) are respectively arranged right above the corresponding electric control valves (4), a dust collecting box (12) is arranged in the dust removing box (6), the dust collecting box (12) is arranged right below the electric control valves (4), a filter screen (1), a fan blade (2) and a rectification grid (3) are arranged in the dust removing box (6), the filter screen (1), the fan blade (2) and the rectification grid (3) are all arranged at the same side of the supporting rod (9), fan blade (2) set up between filter screen (1) and rectification bars (3), the surface of dust collecting plate (8) is provided with insulation board (14), the surface fixed connection of insulation board (14) and dust collecting plate (8), the surface of dust collecting scraping plate (11) is provided with sponge (15), sponge (15) are sealed with the surface of dust collecting scraping plate (11), dust collecting plate (8) cross section is the ring, dust collecting scraping plate (11) are the ring form, corona pole (7) inside is solid structure, dust removal case (6) shape is rectangle.
CN202011425476.1A 2020-12-09 2020-12-09 Energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device Active CN112459823B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011425476.1A CN112459823B (en) 2020-12-09 2020-12-09 Energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device

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Application Number Priority Date Filing Date Title
CN202011425476.1A CN112459823B (en) 2020-12-09 2020-12-09 Energy-saving and environment-friendly dry-wet combined type tunnel construction dust removal device

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CN112459823A CN112459823A (en) 2021-03-09
CN112459823B true CN112459823B (en) 2023-06-27

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005068950A (en) * 2003-08-28 2005-03-17 Shimizu Corp Dust collector for ventilating tunnel gallery inside and gallery inside ventilating method
CN207126672U (en) * 2017-10-16 2018-03-23 陕西华电瑶池发电有限公司 A kind of electrostatic precipitation automaton
CN207709224U (en) * 2018-05-02 2018-08-10 河北清大环保机械有限公司 Electrostatic precipitator
CN209354184U (en) * 2018-11-28 2019-09-06 西南交通大学 Tunnel dust-extraction unit
CN210561240U (en) * 2019-07-22 2020-05-19 江苏德利恒棉业有限公司 Smoke removal device of fabric laser washing device
CN110984041B (en) * 2019-11-22 2021-01-29 中国水利水电第五工程局有限公司 Dust removal vehicle for tunnel construction

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