CN217411103U

CN217411103U - Five-electric-field dust removal device equipment for primary flue gas purification of converter steelmaking

Info

Publication number: CN217411103U
Application number: CN202221336045.2U
Authority: CN
Inventors: 陈为本; 李永
Original assignee: Shaanxi Chuangsida Environmental Protection Engineering Co ltd
Current assignee: Shaanxi Chuangsida Environmental Protection Engineering Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-13
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses an environmental protection equipment technical fieldThe five-electric field dust removing device for purifying the primary flue gas generated by converter steelmaking comprises a gas inlet, a shell, an internal structural part, a chain type ash conveyer, an overhaul platform, an overhaul manhole, a gas outlet, a heat insulation box, a nitrogen charging protection system and a high-voltage power supply device, one end of the shell is provided with an air inlet, the other end of the shell is provided with an air outlet, the bottom of the shell is provided with a chain type ash conveyer, an internal structural member is arranged inside the shell, an overhaul platform is arranged in the middle of the shell, a plurality of inspection manholes are arranged on the inspection platform, an insulation can is arranged at one side of the shell, the bottom of casing is provided with fills nitrogen protection system, one side of gas outlet is provided with high-voltage power supply unit, the utility model discloses change four electric field dust collectors of original converter dry process into five electric field dust collectors, adopt this equipment after the dry process dust removal export concentration can reduce to 10 mg/Nm. ³ The following.

Description

Five-electric-field dust removal device equipment for primary flue gas purification of converter steelmaking

Technical Field

The utility model relates to the technical field of environmental protection equipment, in particular to a five-electric-field dust removal device for converter steelmaking primary flue gas purification.

Background

At present, because of the characteristics of instability, easy explosion and the like of flue gas of a converter during primary dust removal, the diameter of dust particles in the flue gas is smaller, dust removal is difficult, and an electric dust remover of a converter primary dry method electric dust removal system mainly used at home is a four-electric field.

Based on this, the utility model designs a five electric field dust collector equipment for converter steelmaking flue gas purification to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a five electric field dust collector equipment for flue gas purification of converter steelmaking, in order to solve and to provide in the above-mentioned background art because the converter removes dust because the instability of its flue gas, characteristics such as easy explosion, dust particle diameter is less in the flue gas, the converter that is difficult to remove dust and internal present mainly used is dry process electrostatic precipitator for four electric fields once, above remove dust because the easy scale deposit of flue gas, easy explosion, flue gas characteristic is unstable, electric field fault etc., equipment slowly ages in the use and production instability etc. causes the smoke emission not up to standard, the flue gas appears and emits black cigarette, yellow cigarette, the fire door emits yellow cigarette scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a five electric field dust collector equipment for converter steelmaking flue gas purification, includes air inlet, casing, internals, chain ash conveyor, overhauls platform, overhauls manhole, gas outlet, insulation can, fills nitrogen protection system and high voltage power supply unit, the one end of casing is provided with the air inlet, and the other end is provided with the gas outlet, the bottom of casing is provided with chain ash conveyor, the inside of casing is provided with the internals, the intermediate position of casing is provided with overhauls the platform, it is provided with a plurality of maintenance manholes on the platform to overhaul, one side of casing is provided with the insulation can, the bottom of casing is provided with fills nitrogen protection system, one side of gas outlet is provided with high voltage power supply unit.

As a further proposal of the utility model, the inner structure spare includes positive pole system, positive pole rapping system, negative pole rapping system, scrapes grey system, airflow distribution board, negative pole high-voltage apparatus, defeated grey device and lets out and explode the valve, one side of positive pole system is provided with positive pole rapping system, positive pole system and positive pole are beaten and are provided with the negative pole system between the system, be provided with the negative pole between positive pole system and the negative pole system and shake the system, be provided with on the defeated grey machine of chain and scrape grey system, the top of defeated grey machine of chain is provided with defeated grey device, be provided with airflow distribution board on the air inlet, be close to the top of gas outlet is provided with negative pole high-voltage apparatus.

As a further scheme of the utility model, the one end of air inlet is provided with the ring roof beam, be provided with the casing backplate on the casing, be provided with on air inlet and the gas outlet and let out and explode the valve, be close to gas outlet one side and be provided with inside pavement, the top of inside pavement is provided with the gallows, one side of gallows is provided with the positive pole and shakes seat and manhole.

As a further proposal of the utility model, the anode rapping system comprises an anode plate, an anode rapping mechanism and an anode rapping hammer, and the cathode rapping system comprises a cathode line, a cathode rapping mechanism and a cathode rapping hammer.

As a further scheme of the utility model, the ring beam is circular, the diameter is 2500-15600mm, the thickness of the shell guard plate is 10-45mm, and the material is a pressure vessel plate.

As a further proposal of the utility model, the distance between the anode plate and the cathode line is 200-700mm, the anode plate is made of stainless steel, the thickness is 1-4mm, the cathode line is a barbed line, the material is made of stainless steel, every the size between the cathode lines is 120-300 mm.

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

the utility model changes the original converter dry four-electric field dust remover into a five-electric field dust remover, and the outlet concentration of the original converter dry four-electric field dust remover can be reduced to 10mg/Nm after the converter dry four-electric field dust remover is adopted ³ The following.

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 view of the general assembly of the five electric fields of the present invention;

FIG. 2 is a general view of the internal components of the present invention;

FIG. 3 is a schematic view of an air inlet and distribution plate assembly according to the present invention;

fig. 4 is a schematic view of the cathode, anode assembly and rapping apparatus of the present invention.

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

1. an air inlet; 2. a housing; 3. an internal structural member; 4. a chain type ash conveyer; 5. overhauling the platform; 6. A manhole; 7. an air outlet; 8. a heat preservation box; 9. a nitrogen charging protection system; 10. a high voltage power supply; 11. an anode system; 12. an anode rapping system; 13. a cathode system; 14. a cathode rapping system; 15. A dust scraping system; 16. an air flow distribution plate; 17. a cathode high voltage device; 18. an ash conveying device; 19. an explosion venting valve; 20. a ring beam; 21. a shell guard plate; 22. an internal walkway; 23. a hanger; 24. an anode rapping seat; 25. a manhole; 26. an anode plate; 27. an anode rapping mechanism; 28. an anode rapping hammer; 29. a cathode line; 30. a cathode rapping mechanism; 31. and (5) vibrating the cathode to strike the hammer.

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 skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a five-electric-field dust removal device for primary flue gas purification of converter steelmaking comprises an air inlet 1, a shell 2, an internal structural part 3, a chain type ash conveyor 4, an overhauling platform 5, overhauling manholes 6, an air outlet 7, an insulation can 8, a nitrogen-filled protection system 9 and a high-voltage power supply device 10, wherein the air inlet 1 is arranged at one end of the shell 2, the air outlet 7 is arranged at the other end of the shell 2, the chain type ash conveyor 4 is arranged at the bottom of the shell 2, the internal structural part 3 is arranged in the shell 2, the overhauling platform 5 is arranged at the middle position of the shell 2, the overhauling manholes 6 are arranged on the overhauling platform 5, the insulation can 8 is arranged at one side of the shell 2, the nitrogen-filled protection system 9 is arranged at the bottom of the shell 2, the high-voltage power supply device 10 is arranged at one side of the air outlet 7, and the internal structural part 3 comprises an anode system 11, a cathode system and an anode system 11, An anode rapping system 12, a cathode system 13, a cathode rapping system 14, a scraping ash system 15, an air flow distribution plate 16, a cathode high-voltage device 17, an ash conveying device 18 and an explosion discharging valve 19, one side of the anode system 11 is provided with the anode rapping system 12, the cathode system 13 is arranged between the anode system 11 and the anode rapping system 12, the cathode rapping system 14 is arranged between the anode system 11 and the cathode system 13, the ash scraping system 15 is arranged on the chain ash conveyor 4, the ash conveying device 18 is arranged above the chain ash conveyor 4, the air flow distribution plate 16 is arranged on the air inlet 1, the air outlet 7 is arranged above the cathode high-voltage device 17, one end of the air inlet 1 is provided with a ring beam 20, a shell guard plate 21 is arranged on the shell 2, the explosion discharging valve 19 is arranged on the air inlet 1 and the air outlet 7, an inner passage 22 is arranged on one side close to the air outlet 7, the upper portion of the internal walkway 22 is provided with a hanger 23, one side of the hanger 23 is provided with an anode rapping seat 24 and a manhole 25, the anode rapping system 12 comprises an anode plate 26, an anode rapping mechanism 27 and an anode rapping hammer 28, the cathode rapping system 14 comprises a cathode wire 29, a cathode rapping mechanism 30 and a cathode rapping hammer 31, the ring beam 20 is circular, the diameter is 2500-.

Flue gas makes the flue gas equipartition get into the inner structure 3 through its inside distributing plate from air inlet 1, make the dust granule that gets into in the electric field charged through the negative pole discharge device in the inner structure 3, the dust granule after the electric charge adsorbs on anode plate 26 through the effect of electric field force, positive pole and negative pole are shaken the dust granule that will adhere to on positive pole system 11 and negative pole system 13 and are shaken to shake and drop, lean on the dead weight and drop in the bottom of casing 2, the bottom of casing 2 is provided with fan-shaped ash scraping system 15, scrape in the dust granule that bottom accumulational 4 through fan-shaped ash scraping system 15 left and right rocking, carry in bucket elevator or the pneumatic conveyor through hanging the ash machine, send concentrated meeting storehouse again, carry appointed place by the vehicle. The whole equipment contains gas, belongs to explosive and inflammable gas, nitrogen is required to be conveyed to a place easy to leak through a nitrogen protection device 9 to seal the equipment, the periphery of an insulating porcelain bottle in an insulating box 8 is subjected to electric heating protection, an electric heater is heated to about 80 degrees to dry the insulating box 8 and keep dry and not dew, the nitrogen protection device 9 also sweeps the inside of the insulating porcelain bottle to protect the inner wall of the insulating porcelain bottle from being stained with ash and not dew, smoke enters a dust remover and then passes through an airflow distribution plate 16 device to be uniformly distributed in the electric field to ensure that airflow in the electric field is uniformly distributed and circulated, so that the dust remover can remove dust, the dust removal efficiency can be improved, a hanging bracket 23 is used for preventing the porcelain bottle of a cathode hanging system from falling after being damaged and is used for overhauling a manhole 6, the manhole 6 is convenient to maintain at ordinary times, zero leakage is required for a manhole door, an explosion release valve 19 is used for three-level explosion release and is used for protecting equipment of internal parts, the opening pressure of the explosion release valve 19 is set to 5KPa, the smoke discharges through a cathode wire 29 to charge dust in the smoke, the dust is adsorbed on an anode plate 26, a cathode rapping bearing and a cathode rapping hammer 31 attached to the cathode rapping bearing are driven by a cathode rapping mechanism 30 to perform ash removal on the dust on the cathode system 13, an anode rapping mechanism 27 is driven by the cathode rapping bearing and an anode rapping hammer 28 attached to the cathode rapping bearing to perform ash removal on the dust on the anode system 11, the length of the serial electric field of the anode plate 26 of one electric field is required to be 3800 plus 6000mm, and the total five electric fields are provided in the project.

The working principle is as follows: when the five-electric-field dust removal device for purifying primary flue gas in converter steelmaking works, after the flue gas is uniformly distributed from the air inlet 1, the air outlet 7 and internal auxiliary equipment, the flue gas is further uniformly distributed through the flow guide plate and the air flow distribution plate 16, the flow guide plate and the air flow distribution plate 16 are mechanically vibrated to remove ash, the flue gas is ensured to be uniformly distributed through the air flow before entering an electric field after passing through the flow guide plate, meanwhile, the flow guide plate is not stained with ash, the resistance is not increased, the electric charge is carried in the dust of the flue gas by a cathode high-voltage discharge device in the electric field, the charged dust is adsorbed on the anode plate 26 under the coulomb force action, the dust on the anode plate 26 is removed by the dead weight or by the anode plate vibrating mechanism 27, falls to the bottom of the dust remover by the dead weight, and then is scraped into the conveying scraper box at the bottommost of the shell 2 through the bottom sector dust scraper, carry to meeting storehouse through scraping trigger-bucket elevator, perhaps carry to meeting storehouse through the strength, scrape grey system 15 and adopt a drive arrangement of two and two electric fields, three four five electric fields adopt a drive arrangement, wherein electric field inside cathode system 13 must hang through high-voltage insulation system and make high-voltage insulation system keep dry insulating through hot-blast insulation system device, whole system leaks the local whole nitrogen gas that use easily and sweeps sealedly, isolated air gets into or the flue gas leaks, scrape grey system 13 last three electric field and adopt a drive arrangement, whole equipment adopts circular withstand voltage structure, a supporting beam also adopts circular structure.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments 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 its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a five electric field dust collector equipment for converter steelmaking flue gas purification which characterized in that: comprises an air inlet (1), a shell (2), an internal structural part (3), a chain type ash conveyor (4), an inspection platform (5), an inspection manhole (6), an air outlet (7), a heat preservation box (8), a nitrogen-filled protection system (9) and a high-voltage power supply device (10), one end of the shell (2) is provided with an air inlet (1), the other end is provided with an air outlet (7), the bottom of the shell (2) is provided with a chain type ash conveyor (4), the interior of the shell (2) is provided with an internal structural part (3), an overhaul platform (5) is arranged in the middle of the shell (2), a plurality of overhaul manholes (6) are arranged on the overhaul platform (5), an insulation can (8) is arranged on one side of the shell (2), a nitrogen-filled protection system (9) is arranged at the bottom of the shell (2), and a high-voltage power supply device (10) is arranged on one side of the air outlet (7).

2. The five-electric-field dust removal device equipment for the primary flue gas purification of converter steelmaking according to claim 1, wherein: the internal structural component (3) comprises an anode system (11), an anode rapping system (12), a cathode system (13), a cathode rapping system (14), an ash scraping system (15), an air flow distribution plate (16), a cathode high-voltage device (17), an ash conveying device (18) and an explosion venting valve (19), one side of the anode system (11) is provided with an anode rapping system (12), a cathode system (13) is arranged between the anode system (11) and the anode rapping system (12), a cathode rapping system (14) is arranged between the anode system (11) and the cathode system (13), an ash scraping system (15) is arranged on the chain type ash conveyor (4), an ash conveying device (18) is arranged above the chain type ash conveyor (4), an air flow distribution plate (16) is arranged on the air inlet (1), and a cathode high-voltage device (17) is arranged above the air outlet (7).

3. The five-electric-field dust removal device equipment for the primary flue gas purification of converter steelmaking according to claim 1, wherein: the one end of air inlet (1) is provided with ring beam (20), be provided with casing backplate (21) on casing (2), be provided with on air inlet (1) and gas outlet (7) and let out and explode valve (19), be close to gas outlet (7) one side and be provided with inside pavement (22), the top of inside pavement (22) is provided with gallows (23), one side of gallows (23) is provided with positive pole and shakes seat (24) and manhole (25).

4. The five-electric-field dust removal device equipment for the primary flue gas purification of converter steelmaking according to claim 2, wherein: the anode rapping system (12) comprises an anode plate (26), an anode rapping mechanism (27) and an anode rapping hammer (28), and the cathode rapping system (14) comprises a cathode line (29), a cathode rapping mechanism (30) and a cathode rapping hammer (31).

5. The five-electric-field dust removal device equipment for the primary flue gas purification of converter steelmaking according to claim 3, wherein: the ring beam (20) is circular, the diameter is 2500-15600mm, the thickness of the shell body protection plate (21) is 10-45mm, and the material is a pressure container plate.

6. The five-electric-field dust removal device equipment for the primary flue gas purification of converter steelmaking according to claim 4, wherein: the distance between the anode plate (26) and the cathode lines (29) is 200-700mm, the anode plate (26) is made of stainless steel with the thickness of 1-4mm, the cathode lines (29) are barbed lines made of stainless steel, and the dimension between each cathode line (29) is 120-300 mm.