CN114471069A - Industrial furnace flue gas treatment device and method utilizing air cooling - Google Patents
Industrial furnace flue gas treatment device and method utilizing air cooling Download PDFInfo
- Publication number
- CN114471069A CN114471069A CN202111576174.9A CN202111576174A CN114471069A CN 114471069 A CN114471069 A CN 114471069A CN 202111576174 A CN202111576174 A CN 202111576174A CN 114471069 A CN114471069 A CN 114471069A
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- flue gas
- box
- industrial furnace
- heat exchange
- air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses an industrial furnace flue gas treatment device cooled by air, which comprises: the device comprises a base, wherein an industrial furnace is fixed on the upper surface of the base, a smoke collecting box is arranged at the upper right part of the industrial furnace, a box cover is fixed at the top end of the smoke collecting box, a transverse plate is arranged above a rotating roller, and a filter bag is arranged above the transverse plate; the energy recovery box is positioned on the right side of the flue gas collecting box, and the left end and the right end of the energy recovery box are provided with the dispersing boxes; the right side of the energy recovery box is provided with a filtering and purifying box, and a compressor is connected below the filtering and purifying box; a latent heat recovery tank located below the compressor; and the molecular sieve equipment is connected below the latent heat recovery tank through a pipeline. This utilize air cooling's industrial furnace flue gas processing apparatus improves the flue gas filtration efficiency of crossing the filter bag, conveniently changes and crosses the filter bag, delays the flue gas and flows, improves heat exchange efficiency.
Description
Technical Field
The invention relates to the technical field of industrial furnace flue gas treatment, in particular to an industrial furnace flue gas treatment device and method by utilizing air cooling.
Background
In order to save energy and recycle the flue gas, the flue gas treatment device is used for treating the flue gas in the industrial furnace, recovering the waste heat of the flue gas, and the purification equipment is used for treating the flue gas and recovering the nitrogen and oxygen in the flue gas;
the existing industrial furnace flue gas treatment device utilizing air cooling needs to improve the flue gas filtering efficiency and the heat exchange efficiency, and the filter bag is inconvenient to replace, so that the industrial furnace flue gas treatment device utilizing air cooling is provided, and the problems provided in the prior art are solved conveniently.
Disclosure of Invention
The invention aims to provide an industrial furnace flue gas treatment device cooled by air, and aims to solve the problems that the flue gas filtration efficiency and the heat exchange efficiency of the existing industrial furnace flue gas treatment device cooled by air in the background art need to be improved, and a filter bag is inconvenient to replace.
In order to achieve the purpose, the invention provides the following technical scheme: an industrial furnace flue gas treatment device utilizing air cooling, comprising:
the smoke collection device comprises a base, wherein an industrial furnace is fixed on the upper surface of the base, a smoke collection box is arranged at the upper right part of the industrial furnace, a box cover is fixed at the top end of the smoke collection box, a motor is fixed on the left side surface of the smoke collection box, the output end of the motor is connected with a rotating roller, a transverse plate is arranged above the rotating roller, and a filter bag is arranged above the transverse plate;
the energy recovery box is positioned on the right side of the flue gas collecting box, the left end and the right end of the energy recovery box are both provided with dispersing boxes, and the inner ends of the dispersing boxes are connected with heat exchange tubes;
the right side of the energy recovery box is provided with a filtering and purifying box, and a compressor is connected below the filtering and purifying box;
a latent heat recovery tank located below the compressor;
and the molecular sieve equipment is connected below the latent heat recovery tank through a pipeline.
Preferably, the rotating roller is connected with the smoke trapping box through a rotating sealing ring, and the outer end of the rotating roller is of an arc-shaped structure.
Preferably, the energy recovery box is communicated with the industrial furnace through a pipeline, and the pipeline at the bottom end of the energy recovery box is a three-way pipe.
Preferably, the transverse plate and the flue gas trapping box form a lifting structure, and the filter bag is connected with the flue gas trapping box in a threaded manner.
Preferably, the longitudinal section of the heat exchange tube is of a zigzag structure, and the dispersing box is communicated with the dispersing box through the heat exchange tube.
The invention also discloses a hot flue gas treatment method for the industrial furnace by utilizing air cooling, which comprises the following steps:
step 1: the hot flue gas in the industrial furnace body is captured and then condensed for heat exchange; air with the temperature lower than that of hot flue gas is added as a heat exchange medium in the condensation heat exchange process;
step 2: in the condensation heat exchange process of the step 1, the cooled cold flue gas is compressed after being filtered and purified, and heat generated in the compression process is used for heating combustion-supporting air;
and step 3: in the condensation heat exchange process of the step 1, the heated hot air and the heated hot air in the compression process of the step 2 are mixed and sent to an industrial furnace for combustion.
Compared with the prior art, the invention has the beneficial effects that: the industrial furnace flue gas treatment device utilizing air cooling improves the flue gas filtering efficiency of the filter bag, is convenient to replace the filter bag, delays the flow of flue gas and improves the heat exchange efficiency;
1. the rotary roller, the transverse plate and the filter bag are arranged, and the transverse plate is driven to lift by the rotation of the rotary roller, so that the filter bag shakes, and the flue gas filtering efficiency of the filter bag is improved;
2. the smoke collecting box, the box cover and the filter bag are arranged, screws used for connecting the smoke collecting box and the box cover are taken down, then the filter bag is rotated, the filter bag is convenient to take out from the inside of the smoke collecting box, and the filter bag is convenient to replace;
3. the heat exchange device is provided with the dispersing boxes and the heat exchange tubes, the longitudinal sections of the heat exchange tubes are of a fold line structure, the fold line mechanism of the heat exchange tubes is utilized to delay the flow of flue gas, the heat exchange surface is enlarged, and the heat exchange efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of a sectional structure of the flue gas collection box of the present invention;
FIG. 3 is a front sectional view of the energy recovery tank of the present invention;
FIG. 4 is a schematic view of the overall structure of the rotating roll of the present invention;
FIG. 5 is a schematic view of the working process of the present invention.
In the figure: 1. a base; 2. an industrial furnace; 3. a flue gas collection box; 4. a box cover; 5. a motor; 6. a rotating roller; 7. a transverse plate; 8. a filter bag; 9. an energy recovery tank; 10. a filtering and purifying box; 11. a compressor; 12. a latent heat recovery tank; 13. a molecular sieve device; 14. a dispersion box; 15. a heat exchange tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an industrial furnace flue gas treatment device utilizing air cooling comprises a base 1, an industrial furnace 2, a flue gas catching box 3, a box cover 4, a motor 5, a rotating roller 6, a transverse plate 7, a filter bag 8, an energy recovery box 9, a filter purification box 10, a compressor 11, a latent heat recovery box 12, molecular sieve equipment 13, a dispersing box 14 and a heat exchange tube 15, wherein flue gas flows to the flue gas catching box 3 from the industrial furnace 2 through a pipeline, dust is left in the filter bag 8 in the flue gas catching box 3 after being filtered by the filter bag 8 in the flue gas catching box 3, the flue gas after primary filtering flows to the energy recovery box 9 from the flue gas catching box 3, enters the dispersing box 14 at the left end in the energy recovery box 9 through the pipeline and then flows to the dispersing box 14 at the right end in the energy recovery box 9 through the heat exchange tube 15, combustion-supporting air enters the energy recovery box 9 through the top end of the energy recovery box 9, and after the combustion supporting air exchanges heat with the flue gas in the heat exchange tube 15, the cooled flue gas enters the interior of the filtering and purifying box 10;
after purification, cold flue gas flows to the compressor 11, enters the interior of the latent heat recovery tank 12 after being compressed by the compressor 11, combustion-supporting air enters the interior of the latent heat recovery tank 12, then hot air enters the industrial furnace 2 through a pipeline at the left end of the latent heat recovery tank 12, and partial hot air enters the interior of the industrial furnace 2 through a pipeline at the bottom end of the energy recovery tank 9;
carbon dioxide, nitrogen oxides and condensed gas flow out of the latent heat recovery tank 12, and the nitrogen enters the molecular sieve equipment 13 to become pure nitrogen;
in the process of filtering flue gas by the filter bag 8, the motor 5 is started, the motor 5 drives the rotating roller 6 to rotate, as shown in fig. 2 and fig. 3, because the outer end of the rotating roller 6 is of an arc structure, the transverse plate 7 is lifted in the flue gas collection box 3 by the rotation of the rotating roller 6, so that the filter bag 8 on the transverse plate 7 is shaken, the filtering efficiency of the filter bag 8 is improved, when the filter bag 8 needs to be taken out, the box cover 4 is taken down, the flue gas collection box 3 is opened, then the filter bag 8 in the flue gas collection box 3 is rotated, and the filter bag 8 is taken out, so that a series of operations of the industrial furnace flue gas treatment device utilizing air cooling are completed.
The invention also discloses a hot flue gas treatment method for the industrial furnace by utilizing air cooling, which comprises the following steps:
step 1: the hot flue gas in the industrial furnace body is captured and then condensed for heat exchange; air with the temperature lower than that of hot flue gas is added as a heat exchange medium in the condensation heat exchange process;
step 2: in the condensation heat exchange process of the step 1, the cooled cold flue gas is compressed after being filtered and purified, and heat generated in the compression process is used for heating combustion-supporting air;
and step 3: in the condensation heat exchange process of the step 1, the heated hot air and the heated hot air in the compression process of the step 2 are mixed and sent to an industrial furnace for combustion.
Compared with the prior art, the invention has the beneficial effects that: the industrial furnace flue gas treatment device utilizing air cooling improves the flue gas filtering efficiency of the filter bag, is convenient to replace the filter bag, delays the flow of flue gas and improves the heat exchange efficiency;
1. the rotary roller, the transverse plate and the filter bag are arranged, and the transverse plate is driven to lift by the rotation of the rotary roller, so that the filter bag shakes, and the flue gas filtering efficiency of the filter bag is improved;
2. the smoke collecting box, the box cover and the filter bag are arranged, screws used for connecting the smoke collecting box and the box cover are taken down, then the filter bag is rotated, the filter bag is convenient to take out from the inside of the smoke collecting box, and the filter bag is convenient to replace;
3. the heat exchange device is provided with the dispersing boxes and the heat exchange tubes, the longitudinal sections of the heat exchange tubes are of a fold line structure, the fold line mechanism of the heat exchange tubes is utilized to delay the flow of flue gas, the heat exchange surface is enlarged, and the heat exchange efficiency is improved.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides an utilize air cooling's industrial furnace flue gas processing apparatus which characterized in that: the method comprises the following steps:
the device comprises a base (1), wherein an industrial furnace (2) is fixed on the upper surface of the base (1), a flue gas collecting box (3) is arranged at the upper right part of the industrial furnace (2), a box cover (4) is fixed at the top end of the flue gas collecting box (3), a motor (5) is fixed on the left side surface of the flue gas collecting box (3), the output end of the motor (5) is connected with a rotating roller (6), a transverse plate (7) is arranged above the rotating roller (6), and a filter bag (8) is arranged above the transverse plate (7);
the energy recovery box (9) is positioned on the right side of the flue gas collecting box (3), the left end and the right end of the energy recovery box (9) are respectively provided with a dispersing box (14), and the inner end of each dispersing box (14) is connected with a heat exchange pipe (15);
the right side of the energy recovery box (9) is provided with the filtering and purifying box (10), and a compressor (11) is connected below the filtering and purifying box (10);
a latent heat recovery tank (12), the latent heat recovery tank (12) being located below the compressor (11);
and the molecular sieve equipment (13) is connected below the latent heat recovery tank (12) through a pipeline.
2. The flue gas treatment device for the industrial furnace cooled by air as claimed in claim 1, wherein: the rotating roller (6) is connected with the flue gas collecting box (3) through a rotary sealing ring, and the outer end of the rotating roller (6) is of an arc-shaped structure.
3. The flue gas treatment device for the industrial furnace cooled by air as claimed in claim 1, wherein: the energy recovery box (9) is communicated with the industrial furnace (2) through a pipeline, and the pipeline at the bottom end of the energy recovery box (9) is a three-way pipe.
4. The flue gas treatment device for the industrial furnace cooled by air as claimed in claim 1, wherein: the transverse plate (7) and the flue gas catching box (3) form a lifting structure, and the filter bag (8) is connected with the flue gas catching box (3) in a threaded manner.
5. The flue gas treatment device for the industrial furnace cooled by air as claimed in claim 1, wherein: the longitudinal section of the heat exchange tube (15) is of a zigzag structure, and the dispersing box (14) is communicated with the dispersing box (14) through the heat exchange tube (15).
6. A hot flue gas treatment method for an industrial furnace by utilizing air cooling is characterized by comprising the following steps: comprises the following steps:
step 1: the hot flue gas in the industrial furnace body is captured and then condensed for heat exchange; air with the temperature lower than that of hot flue gas is added as a heat exchange medium in the condensation heat exchange process;
step 2: in the condensation heat exchange process of the step 1, the cooled cold flue gas is compressed after being filtered and purified, and heat generated in the compression process is used for heating combustion-supporting air;
and step 3: in the condensation heat exchange process of the step 1, the heated hot air and the heated hot air in the compression process of the step 2 are mixed and sent to an industrial furnace for combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111576174.9A CN114471069A (en) | 2021-12-22 | 2021-12-22 | Industrial furnace flue gas treatment device and method utilizing air cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111576174.9A CN114471069A (en) | 2021-12-22 | 2021-12-22 | Industrial furnace flue gas treatment device and method utilizing air cooling |
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| Publication Number | Publication Date |
|---|---|
| CN114471069A true CN114471069A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111576174.9A Pending CN114471069A (en) | 2021-12-22 | 2021-12-22 | Industrial furnace flue gas treatment device and method utilizing air cooling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232271A (en) * | 2023-08-16 | 2023-12-15 | 云南云帆有色金属股份有限公司 | Dust removing system for submerged arc furnace |
-
2021
- 2021-12-22 CN CN202111576174.9A patent/CN114471069A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232271A (en) * | 2023-08-16 | 2023-12-15 | 云南云帆有色金属股份有限公司 | Dust removing system for submerged arc furnace |
| CN117232271B (en) * | 2023-08-16 | 2024-03-15 | 云南云帆有色金属股份有限公司 | Dust removal system for submerged arc furnace and use method of dust removal system |
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Effective date of registration: 20230607 Address after: Room 2202, Rongmin Tianxi, No. 4 Fengcheng South Road, Lianhu District, Xi'an City, Shaanxi Province, 710000 Applicant after: Shaanxi Beisheng Technology Co.,Ltd. Address before: 710000 No. 10125, building 13, donglida International Expo City, North Third Ring auxiliary road, Chanba Ecological District, Xi'an City, Shaanxi Province Applicant before: Shaanxi Yixing Jiayuan Technology Co.,Ltd. |
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