CN213855088U - Wet high-voltage electrostatic dust collector - Google Patents

Abstract

The utility model discloses a wet high-voltage electrostatic precipitator, which comprises an electrostatic precipitator body, wherein the electrostatic precipitator body comprises an ash bucket, and the electrostatic precipitator body also comprises an outer cylinder, a cyclone plate, a guide plate, a honeycomb dust collecting box and a spraying device; the cyclone plate is horizontally arranged at the joint of the ash bucket and the outer barrel, the guide plate is horizontally arranged in the outer barrel and is positioned in one side direction of the cyclone plate away from the ash bucket, the electrostatic dust collector body further comprises an insulation box arranged above the honeycomb dust collection box and a hexagonal star discharge bur at the center of the honeycomb tube, and the top of the outer barrel is also provided with a spraying device and a smoke outlet for smoke discharge; the use of the mutually matched anode honeycomb dust collecting pipe insulation boxes can effectively reduce the power consumption and keep the stability of the electric field and the corona.

Description

Wet high-voltage electrostatic dust collector

Technical Field

The utility model relates to an electrostatic precipitator specifically is a wet-type high voltage electrostatic precipitator.

Background

Electrostatic dust removal is one of the methods of gas dust removal. The dust-containing gas is electrically separated when passing through a high-voltage electrostatic field, and dust particles and negative ions are combined to be charged negatively and then tend to discharge on the surface of the anode plate to be deposited. In the metallurgical, chemical and other industries to purify gases or recover useful dust particles. A dust collecting method in which gas is ionized by an electrostatic field to thereby electrically adsorb dust particles to an electrode. In a strong electric field, air molecules are ionized into positive ions and electrons, and the electrons encounter dust particles in the process of running to the positive electrode, so that the dust particles are negatively charged and adsorbed to the positive electrode to be collected.

There are many different types of dust removing devices in the prior art, including electrostatic dust removing devices, cyclone dust removing devices, wet dust collectors, and desulfurization dust removing devices. However, the existing electrostatic dust collector has the problems of uneven airflow in the device body, poor dust collection effect, low dust collection efficiency and great environmental pollution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wet-type high voltage electrostatic precipitator to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: the electrostatic dust collector comprises a washing and settling tank, wherein a smoke outlet pipe is arranged on one side of the washing and settling tank, the other end of the smoke outlet pipe, which is connected with the washing and settling tank, is connected with an electrostatic dust collector body, the electrostatic dust collector body comprises an ash bucket connected with the smoke outlet pipe, and the electrostatic dust collector body also comprises an outer barrel, a cyclone plate, a guide plate, a honeycomb dust collection box and a spraying device; the outer cylinder is connected above the ash bucket and is communicated with the ash bucket in a hollow way, the cyclone plate is horizontally arranged at the connecting part of the ash bucket and the outer cylinder, the guide plate is horizontally arranged in the outer cylinder and positioned in the direction of one side of the cyclone plate far away from the ash bucket, the honeycomb dust collection box is positioned above the guide plate and is arranged in the middle of the inner cylinder, the honeycomb dust collecting box comprises a plurality of vertically arranged honeycomb tubes, the honeycomb tubes are regular hexagonal prism-shaped hollow tubes formed by a plurality of honeycomb dust collecting plates, the electrostatic dust collector body also comprises an insulation box arranged above the honeycomb tube, the top of the honeycomb tube is also connected with a bus, the bus is positioned in the middle of the regular hexagonal honeycomb tube and is connected with a cathode corona wire, the corona wire is arranged in parallel with the middle of the honeycomb tube, the cathode corona wire peripheral wall is provided with a plurality of hexagram discharge burs along the length direction, and the top of the outer barrel is also provided with a spraying device and a smoke outlet for smoke discharge.

Preferably, one end of the smoke outlet pipe, which is positioned in the ash bucket, is provided with an elbow, and an opening of the elbow faces downwards vertically.

Preferably, the spraying device comprises a spraying pipe, a plurality of rotary nozzles are arranged on the spraying pipe along the length direction, and the spraying pipe extends to the outer side of the outer barrel and is connected with a circulating water pump for pumping water into a water source.

Preferably, a plurality of flow guide holes are formed in the flow guide plate, and the flow guide holes correspond to the openings of the honeycomb pipes.

Preferably, a water-seal ash collecting tank is arranged below the ash bucket, and a slag discharge port is formed in the side wall of the water-seal ash collecting tank.

Compared with the prior art, the beneficial effects of the utility model are that:

the smoke passing through the sedimentation tank is discharged into the ash bucket, the smoke in the ash bucket floats upwards, the smoke in the electrostatic dust collector body can effectively flow more uniformly through the horizontally arranged cyclone plate, the flow guide plate and the regular hexagonal honeycomb dust collecting box, dust impurities in the smoke can be well removed, and the dust impurities can be more completely cleaned and removed through the spraying device at the top of the electrostatic dust collector; the positive honeycomb dust collecting tube is matched with the hexagram discharging prickle, so that power consumption can be effectively reduced, and the stability of an electric field and corona is kept.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the whole of the present embodiment;

FIG. 2 is a schematic sectional view showing the cross section of the honeycomb duct according to the present embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. washing a sedimentation tank; 2. discharging the smoke tube; 3. an electrostatic precipitator body; 4. an ash hopper; 5. an outer cylinder; 6. a cyclone plate; 7. a baffle; 8. a honeycomb dust collecting box; 9. a spraying device; 10. a honeycomb tube; 11. a honeycomb dust collecting plate; 12. an insulating case; 13. a flue gas outlet; 14. bending the pipe; 15. a shower pipe; 16. rotating the nozzle; 17. a transformer; 18. a flow guide hole; 19. water sealing an ash collecting tank; 20. a slag discharge port; 21. a bus; 22. a cathode corona wire; 23. hexagonal star discharge prickle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a wet-type high-voltage electrostatic precipitator comprises a washing and settling tank 1, wherein a smoke outlet pipe 2 is arranged on one side of the washing and settling tank 1, the smoke outlet pipe 2 is connected with the other end of the washing and settling tank 1 and is connected with an electrostatic precipitator body 3, the electrostatic precipitator body 3 comprises an ash bucket 4 connected with the smoke outlet pipe 2, and the electrostatic precipitator body 3 further comprises an outer barrel 5, a cyclone plate 6, a guide plate 7, a honeycomb dust collection box 8 and a spraying device 9; the outer cylinder 5 is connected above the ash bucket 4 and is communicated in a hollow manner, the cyclone plate 6 is horizontally arranged at the joint of the ash bucket 4 and the outer cylinder 5, the guide plate 7 is horizontally arranged in the outer cylinder 5 and is positioned in one side direction of the cyclone plate 6 far away from the ash bucket 4, the honeycomb dust collection box 8 is positioned above the guide plate 7 and is arranged in the middle position in the outer cylinder 5, the honeycomb dust collection box 8 comprises a plurality of vertically arranged honeycomb tubes 10, the honeycomb tubes 10 are regular hexagonal prism-shaped hollow tubes formed by a plurality of honeycomb dust collection plates 11, the electrostatic dust collector body 3 further comprises an insulation box 12 arranged above the honeycomb tubes 10, the top of the honeycomb tubes 10 is further connected with a bus 21, the bus 21 is positioned in the middle part of the regular hexagonal honeycomb tubes 10 and is connected with a cathode corona wire 22, the cathode wire is arranged in parallel to the middle part of the honeycomb tubes, the peripheral wall of the cathode corona wire 22 is provided with a plurality of hexagonal star discharge barbs 23 along the length direction, the top of the outer cylinder 5 is also provided with a spraying device 9 and a smoke outlet 13 for smoke discharge.

Specifically, the one end that goes out tobacco pipe 2 and be located ash bucket 4 is equipped with elbow 14, elbow 14 opening is vertical downwards, sets the elbow 14 that the opening is vertical downwards through the play cigarette department that is located the tobacco pipe in ash bucket 4, can produce decurrent impulsive force when the flue gas is spout, and some relatively heavier solid impurity in the flue gas can drop downwards, can carry out first dust removal to the flue gas.

Specifically, spray set 9 includes shower 15, install a plurality of rotary nozzle 16 along length direction on shower 15, shower 15 extends to the urceolus 5 outside and is connected in the circulating water pump that is used for the suction water source, be provided with a plurality of rotary nozzle 16 on the shower 15, a certain interval is left between the rotary nozzle 16, make every rotary nozzle 16 spray face can not cover each other as far as possible, circulating water pump is connected to shower 15's the other end, circulating water pump extracts the water that sprays, spray water downwards through rotary nozzle 16, can wash away the solid particle who attaches on the dust collecting plate wall, spray the direct flue gas that washes the rising of water simultaneously, absorb wherein most sulfur dioxide (SO2) and Nitrogen Oxide (NOX) reach the effect of desulfurization nitre-reduction.

Specifically, a plurality of water conservancy diversion holes 18 have been seted up on the guide plate 7, water conservancy diversion hole 18 is corresponding with honeycomb pipe 10 opening part, and water conservancy diversion hole 18 corresponds the setting with honeycomb pipe 10 opening and can make more even row when the flue gas rises to honeycomb pipe 10 in, makes honeycomb pipe 10 better adsorb impurity, and can play fine water conservancy diversion effect when rotatory nozzle 16 sprays water.

Specifically, the below of ash bucket 4 is equipped with water seal ash collecting pool 19, has seted up row cinder notch 20 on the water seal ash collecting pool 19 lateral wall, and solid particle in the flue gas falls down or can fall into water seal ash collecting pool 19 after being washed by rotatory nozzle 16 spun water under the centrifugal force effect, can carry out better collection to impurity, can clear up through row cinder notch 20 when impurity is too much in water seal ash collecting pool 19.

One specific application example of this embodiment is:

when the device is used, the smoke coming out of the washing and settling tank enters from the lower end of the electrostatic dust collector body 3 through the smoke outlet pipe 2, is blown downwards through the elbow 14 with the opening facing downwards and then is reversely folded to enter the electrostatic dust collector body 3, and then is thrown to the cylinder wall to fall due to the centrifugal action of large-particle solid impurities of the cyclone plate 6; then the smoke upwards passes through the diversion plate 7 from the diversion hole 18 to uniformly upwards enter the honeycomb dust collection box 8 and continuously upwards rises through the cathode corona wire 22; the high-voltage electrode discharges to ionize air and generate corona, so that solid particles in smoke with negative charges are attracted to the honeycomb dust collecting plate 11 with positive charges and attached to the inner wall of the regular hexagonal prism-shaped honeycomb tube 10, wherein the insulation box 12 is electrically connected with a transformer 17, and the high-voltage electrode discharges through the hexagram discharge prickles 23 connected with the insulation box 12 to generate the corona with negative charges; a spraying device 9 arranged at the upper part of the honeycomb dust collecting box 8 through the electrostatic dust collector body 3 sprays water downwards through a rotor rotating nozzle 16, solid particles attached to the inner wall of the honeycomb pipe 10 are washed away, and the solid particles fall into a water-sealed dust collecting tank 19; meanwhile, the spray water directly flushes the rising flue gas to absorb most of sulfur dioxide (SO2) and Nitrogen Oxide (NOX) in the flue gas to achieve the effects of desulfurization and nitrate reduction.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (5)

1. The utility model provides a wet-type high-voltage electrostatic precipitator, includes washing settling basin (1), and one side of washing settling basin (1) is equipped with out tobacco pipe (2), its characterized in that: the other end of the smoke outlet pipe (2) connected with the washing and settling tank (1) is connected with an electrostatic dust collector body (3), the electrostatic dust collector body (3) comprises an ash bucket (4) connected with the smoke outlet pipe (2), and the electrostatic dust collector body (3) further comprises an outer cylinder (5), a cyclone plate (6), a guide plate (7), a honeycomb dust collection box (8) and a spraying device (9); the electrostatic dust collector comprises an outer barrel (5), a guide plate (7), a honeycomb dust collecting box (8), a honeycomb tube (10) and a bus (21), wherein the outer barrel (5) is connected above an ash bucket (4) and is communicated in a hollow mode, the cyclone plate (6) is horizontally arranged at the connection position of the ash bucket (4) and the outer barrel (5), the guide plate (7) is horizontally arranged in the outer barrel (5) and is positioned in one side direction of the cyclone plate (6) far away from the ash bucket (4), the honeycomb dust collecting box (8) is positioned above the guide plate (7) and is arranged in the middle of the outer barrel (5), the honeycomb tube (8) comprises a plurality of vertically arranged honeycomb tubes (10), the honeycomb tubes (10) are regular hexagonal hollow tubes formed by a plurality of honeycomb dust collecting plates (11), the electrostatic dust collector body (3) further comprises an insulating box (12) arranged above the honeycomb tubes (10), the top of the honeycomb tubes (10) is also connected with the bus (21), the bus (21) is positioned in the middle of the regular hexagonal honeycomb tubes (10) and is connected with a cathode corona wire (22), the corona wire is arranged in parallel to the middle of the honeycomb tube (10), the peripheral wall of the cathode corona wire (22) is provided with a plurality of hexagram discharge burls (23) along the length direction, and the top of the outer barrel (5) is also provided with a spraying device (9) and a smoke outlet (13) for smoke discharge.

2. A wet high-voltage electrostatic precipitator according to claim 1, wherein: an elbow (14) is arranged at one end of the smoke outlet pipe (2) in the ash bucket (4), and an opening of the elbow (14) faces downwards vertically.

3. A wet high-voltage electrostatic precipitator according to claim 1, wherein: the spraying device (9) comprises a spraying pipe (15), a plurality of rotary nozzles (16) are arranged on the spraying pipe (15) along the length direction, and the spraying pipe (15) extends to the outer side of the outer barrel (5) and is connected with a circulating water pump for pumping water into a water source.

4. A wet high-voltage electrostatic precipitator according to claim 1, wherein: the guide plate (7) is provided with a plurality of guide holes (18), and the guide holes (18) correspond to the openings of the honeycomb tubes (10).

5. A wet high-voltage electrostatic precipitator according to claim 1, wherein: a water seal ash collecting tank (19) is arranged below the ash bucket (4), and a slag discharging port (20) is formed in the side wall of the water seal ash collecting tank (19).

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