CN219454709U - Shaft furnace roasting heat recovery system - Google Patents
Shaft furnace roasting heat recovery system Download PDFInfo
- Publication number
- CN219454709U CN219454709U CN202320718190.5U CN202320718190U CN219454709U CN 219454709 U CN219454709 U CN 219454709U CN 202320718190 U CN202320718190 U CN 202320718190U CN 219454709 U CN219454709 U CN 219454709U
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- CN
- China
- Prior art keywords
- fixedly connected
- shaft furnace
- box
- wall
- recovery system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000011084 recovery Methods 0.000 title claims abstract description 50
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims 1
- 239000002912 waste gas Substances 0.000 abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to the technical field of roasting of shaft furnaces, and provides a shaft furnace roasting heat recovery system which comprises a shaft furnace, wherein a recovery box is fixedly connected to one side of the shaft furnace, a connection port is formed in one side of the inner wall of the recovery box, an exhaust pipe is fixedly connected to the inner wall of the connection port, a serpentine fin tube is fixedly connected to one end of the exhaust pipe, and fins are fixedly connected to the outer sides of the serpentine fin tube. The utility model can discharge the flue gas discharged from the shaft furnace through the exhaust pipe, the serpentine finned tube is adopted, the heat in the waste gas is led out through the heat conduction of the serpentine finned tube and the fins, the inner side of the recovery box is pumped by the air pump, the heat is brought into the inner side of the storage box through the contact with the fins, and the storage box is connected with an external pipeline for secondary utilization, thereby avoiding the heat loss caused by direct treatment and discharge, and further increasing the heat utilization rate of the equipment.
Description
Technical Field
The utility model relates to the technical field of shaft furnace roasting, in particular to a shaft furnace roasting heat recovery system.
Background
The shaft furnace is an ultra-high power electric arc furnace with a vertical furnace body, a vertical shaft is arranged on a furnace cover, and waste steel is preheated in the vertical shaft by utilizing high-temperature waste gas discharged by the electric arc furnace. The furnace gas moves upward in the furnace. Countercurrent heat exchange is carried out between the material and the furnace burden; the furnace burden of a plurality of shaft furnaces is in direct contact with fuel, the shaft furnaces are vertical furnace bodies, the furnace covers are provided with vertical shafts, and the high-temperature waste gas discharged by the electric arc furnaces is utilized to preheat scrap steel in the vertical shafts. The furnace gas moves upward in the furnace.
According to the search of Chinese utility model publication number: CN213680766U discloses a novel shaft furnace for roasting siderite with bituminous coal, comprising: the shaft furnace body is supported and fixed by a support frame, the top end of the shaft furnace body is provided with an annular furnace mouth communicated with a furnace chamber in the shaft furnace body, the bottom of the shaft furnace body is provided with an annular discharge disc, and the shaft furnace body is also provided with a combustion chamber, a fire mouth, a grate, a furnace core, an exhaust channel and an exhaust fan; the material conveying belt is arranged at one side of the shaft furnace body; the hand-push type rotary feeder is arranged at the top end of the shaft furnace body, the material receiving end of the hand-push type rotary feeder is positioned below the tail end of the material conveying belt, and the material discharging end of the hand-push type rotary feeder is positioned right above the annular furnace mouth; the rotary table blanking machine is arranged on the outer peripheral side of the bottom of the shaft furnace body in a surrounding mode, and the material receiving end of the rotary table blanking machine is located below the edge of the annular discharging disc. This shaft furnace need not artifical handheld spade pay-off, and can the automatic discharging, labour saving and time saving and ejection of compact do not have the dead angle, and the ejection of compact is smooth and easy.
However, when implementing the above solution, the following drawbacks exist: in the process of discharging the flue gas, although the dust fall and desulfurization treatment of the waste gas of the shaft furnace are achieved, the environmental protection of the waste gas discharge is improved, but the waste gas is discharged into the atmosphere after dust removal directly at the temperature of 150-200 ℃ in the exhaust temperature of the shaft furnace, so that the heat loss is large, and the utilization rate is lower.
Disclosure of Invention
The utility model provides a shaft furnace roasting heat recovery system, which solves the problems of large heat loss and lower utilization rate caused by waste gas treatment in the related technology.
The technical scheme of the utility model is as follows: the utility model provides a shaft furnace roasting heat recovery system, includes the shaft furnace, one side of shaft furnace fixed mounting has the collection box, the connector has been seted up to one side of collection box inner wall, the inner wall fixedly connected with blast pipe of connector, blast pipe one end fixedly connected with snakelike finned tube, the outside of snakelike finned tube all fixedly connected with fin;
the top fixedly connected with aspiration pump of collection box, the top fixedly connected with storage box of collection box, the storage box sets up in one side of aspiration pump, the gas vent has been seted up to the roof in the storage box, the air inlet has been seted up to the interior bottom wall of collection box.
Preferably, the other end of the exhaust pipe is fixedly connected with one side of the shaft furnace, the input end of the air pump penetrates through the top of the recovery box and extends to the inner side of the recovery box, and the output end of the air pump penetrates through one side of the storage box and extends to the inner side of the storage box.
Preferably, the other end of the serpentine fin tube penetrates through the other side of the inner wall of the recovery box and extends to the outer side of the recovery box, one side of the recovery box is fixedly connected with a smoke exhaust tube, and the inner wall of the smoke exhaust tube is sequentially and fixedly connected with a dust filtering layer and an odor eliminating layer from left to right.
Preferably, the inner wall of the exhaust port is fixedly connected with a connecting pipe, and the top of the pipe wall of the connecting pipe is fixedly connected with a flange.
Preferably, the dust filter screen is detachably and fixedly connected to the bottom of the recovery box, and the top of the dust filter screen is fixedly connected with the bottom of the recovery box through a plurality of bolts.
Preferably, the other end of the outer side of the serpentine fin tube is fixedly connected with a sealing gasket, and one side of the sealing gasket is fixedly connected with one side of the inner wall of the recovery box.
Preferably, the outside of collection box and storage box all is provided with the insulating layer, the insulating layer is thermal-insulated lacquer evenly scribbles in collection box and storage box outside.
Preferably, the inner wall of the flange is fixedly connected with an active carbon filter screen, and the outer side of the active carbon filter screen is fixedly connected with the inner wall of the flange through phenolic resin adhesive
The working principle and the beneficial effects of the utility model are as follows:
through the arrangement of the shaft furnace, the recovery box, the connecting port, the exhaust pipe, the serpentine finned tube, the fins, the air sucking pump, the storage box, the exhaust port and the air inlet, the utility model can realize the exhaust of flue gas discharged from the shaft furnace through the exhaust pipe, the serpentine finned tube is adopted to conduct heat in the exhaust gas through the serpentine finned tube and the fins, and then the air sucking pump is adopted to suck air from the inner side of the recovery box to be contacted with the fins, so that the heat is brought into the inner side of the storage box, and the storage box is connected with an external pipeline for secondary utilization, thereby avoiding heat loss caused by direct treatment and discharge, and further increasing the heat utilization rate of the equipment.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic perspective view of a shaft furnace roasting heat recovery system according to the present utility model;
FIG. 2 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 3 is a schematic perspective sectional view of the recovery tank of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
in the figure: 1. a shaft furnace; 2. a recovery box; 3. a connection port; 4. an exhaust pipe; 5. serpentine fin tubes; 6. a fin; 7. an air extracting pump; 8. a storage box; 9. an exhaust port; 10. an air inlet; 11. a dust filter layer; 12. an odor eliminating layer; 13. a connecting pipe; 14. a flange; 15. a dust filter screen; 16. a bolt; 17. a sealing gasket; 18. a thermal insulation layer; 19. an active carbon filter screen; 20. and a smoke exhaust pipe.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides a technical scheme of a roasting heat recovery system of a shaft furnace, which comprises the following steps: the utility model provides a shaft furnace roasting heat recovery system, which comprises a shaft furnace 1, shaft furnace 1 is prior art, recovery box 2 is fixedly installed on one side of shaft furnace 1, recovery box 2 is mainly used for recovering the heat in the waste gas, connector 3 has been seted up to one side of recovery box 2 inner wall, the inner wall fixedly connected with blast pipe 4 of connector 3, blast pipe 4 one end fixedly connected with snakelike finned tube 5, snakelike finned tube 5 is heat transfer element, the outside of snakelike finned tube 5 all fixedly connected with fin 6, combine with fin 6 through snakelike finned tube 5 and carry out the heat transfer;
the top fixedly connected with aspiration pump 7 of collection box 2, the top fixedly connected with storage box 8 of collection box 2, storage box 8 are used for temporarily storing steam, and storage box 8 sets up in one side of aspiration pump 7, and gas vent 9 has been seted up to roof in the storage box 8, and gas vent 9 discharges the gas of retrieving heat, and air inlet 10 has been seted up to the interior bottom wall of collection box 2.
Specifically, the other end of blast pipe 4 and one side fixed connection of shaft furnace 1, the top of collection box 2 is run through to the input of aspiration pump 7 and extend to the inboard of collection box 2, the output of aspiration pump 7 runs through storage box 8 one side and extends to the inboard of storage box 8, the other end of snakelike finned tube 5 runs through the opposite side of collection box 2 inner wall and extends to the collection box 2 outside, one side fixedly connected with of collection box 2 is discharged fume tube 20, the inner wall of discharging fume tube 20 from left to right fixedly connected with dust filter layer 11 in proper order, peculiar smell elimination layer 12, filter the dust in the exhaust waste gas through dust filter layer 11, again by peculiar smell elimination layer 12 to peculiar smell and harm substance elimination, peculiar smell elimination layer 12 is made with the bamboo charcoal as the raw and other harmful chemical substances of sulphide, hydride, methyl alcohol, benzene, phenol play absorption, decompose peculiar smell and deodorization effect.
Specifically, the inner wall fixedly connected with connecting pipe 13 of gas vent 9, the top fixedly connected with flange 14 of connecting pipe 13 pipe wall, flange 14 is more convenient when being used for external pipeline connection, fixed connection dust filter screen 15 can be dismantled to the bottom of collection box 2, dust filter screen 15 covers air inlet 10, to the air filtration that flows from air inlet 10, avoid the dust to enter into collection box 2 inboard, the top of dust filter screen 15 and the bottom of collection box 2 are through a plurality of bolt 16 fixed connection, accessible bolt 16 carries out dismantling the cleaning and fixing to dust filter screen 15, the other end fixedly connected with sealing washer 17 in the snakelike finned tube 5 outside, one side of sealing washer 17 and one side fixed connection of collection box 2 inner wall, sealing washer 17 increases the part of snakelike finned tube 5 through collection box 2 and seals, prevent snakelike finned tube 5 junction leakage.
Specifically, the outside of recovery tank 2 and storage tank 8 all is provided with insulating layer 18, and insulating layer 18 is evenly paintd in recovery tank 2 and storage tank 8 outsides for the insulating varnish, and the inner wall fixedly connected with active carbon filter screen 19 of flange 14, the outside of active carbon filter screen 19 and the inner wall of flange 14 pass through phenolic resin adhesive fixed connection, and phenolic resin adhesive chemical stability is high, glue intensity is high, water-fast, oil-resistant, wear-resisting, corrosion-resistant, ageing-resistant, heat resistance are good, and active carbon filter screen 19 filters the hot gas of retrieving again, increases gaseous clean and tidy degree.
The working principle and the using flow of the utility model are as follows: when the device is used, materials are roasted through the shaft furnace 1, flue gas is discharged from the exhaust pipe 4 in the combustion process and enters the inner side of the serpentine fin pipe 5, when the flue gas flows through the serpentine fin pipe 5, heat in the flue gas can be conducted to the fins 6, then the air suction pump 7 is started to suction air at the inner side of the recovery box 2, external air enters from the air inlet 10, dust in the air can be filtered through the dust filter screen 15, external air is in contact with the fins 6 and mixed, some heat is taken away, the heat is discharged to the inner side of the storage box 8 through the output end of the air suction pump 7, the flange 14 is connected with corresponding pipelines in advance, the heat is led into other purposes such as equipment drying through the connecting pipe 13, and the air is filtered again through the active carbon filter screen 19 in the process, so that the cleanliness of the air is improved, and the secondary utilization of the heat of the flue gas is achieved;
the waste gas flows to the other end through the serpentine fin tube 5 to be discharged, the inner side of the smoke exhaust tube 20 is arranged in a way, the sealing gasket 17 seals the part of the serpentine fin tube 5 penetrating through the recovery box 2, the tightness is improved, the waste gas is prevented from entering the inner side of the recovery box 2 from the smoke exhaust tube 20, then the waste gas is filtered by the dust filter layer 11 on the first layer of dust in the waste gas, and the peculiar smell in the waste gas is eliminated and discharged by the peculiar smell eliminating layer 12.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a shaft furnace roasting heat recovery system, includes shaft furnace (1), its characterized in that, one side of shaft furnace (1) fixed mounting has collection box (2), connector (3) have been seted up to one side of collection box (2) inner wall, the inner wall fixedly connected with blast pipe (4) of connector (3), blast pipe (4) one end fixedly connected with snakelike finned tube (5), the outside of snakelike finned tube (5) all fixedly connected with fin (6);
the top fixedly connected with aspiration pump (7) of collection box (2), the top fixedly connected with storage box (8) of collection box (2), storage box (8) set up in one side of aspiration pump (7), gas vent (9) have been seted up to roof in storage box (8), air inlet (10) have been seted up to the interior bottom wall of collection box (2).
2. The shaft furnace roasting heat recovery system according to claim 1, characterized in that the other end of the exhaust pipe (4) is fixedly connected with one side of the shaft furnace (1), the input end of the air pump (7) penetrates the top of the recovery box (2) and extends to the inner side of the recovery box (2), and the output end of the air pump (7) penetrates one side of the storage box (8) and extends to the inner side of the storage box (8).
3. The shaft furnace roasting heat recovery system according to claim 1, wherein the other end of the serpentine fin tube (5) penetrates through the other side of the inner wall of the recovery box (2) and extends to the outer side of the recovery box (2), one side of the recovery box (2) is fixedly connected with a smoke exhaust tube (20), and the inner wall of the smoke exhaust tube (20) is detachably connected with a dust filter layer (11) and an odor eliminating layer (12) from left to right in sequence.
4. The shaft furnace roasting heat recovery system according to claim 1, wherein the inner wall of the exhaust port (9) is fixedly connected with a connecting pipe (13), and the top of the pipe wall of the connecting pipe (13) is fixedly connected with a flange (14).
5. The shaft furnace roasting heat recovery system according to claim 1, characterized in that a dust filter screen (15) is detachably connected to the bottom of the recovery box (2), and the top of the dust filter screen (15) is fixedly connected to the bottom of the recovery box (2) through a plurality of bolts (16).
6. The shaft furnace roasting heat recovery system according to claim 1, wherein a sealing gasket (17) is fixedly connected to the other end of the outer side of the serpentine fin tube (5), and one side of the sealing gasket (17) is fixedly connected to one side of the inner wall of the recovery box (2).
7. The shaft furnace roasting heat recovery system according to claim 1, wherein the outer sides of the recovery tank (2) and the storage tank (8) are provided with heat insulation layers (18), and the heat insulation layers (18) are uniformly coated on the outer sides of the recovery tank (2) and the storage tank (8) by heat insulation paint.
8. The shaft furnace roasting heat recovery system according to claim 4, wherein an activated carbon filter screen (19) is fixedly connected to the inner wall of the flange (14), and the outer side of the activated carbon filter screen (19) is fixedly connected with the inner wall of the flange (14) through phenolic resin adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718190.5U CN219454709U (en) | 2023-04-04 | 2023-04-04 | Shaft furnace roasting heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718190.5U CN219454709U (en) | 2023-04-04 | 2023-04-04 | Shaft furnace roasting heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219454709U true CN219454709U (en) | 2023-08-01 |
Family
ID=87417931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320718190.5U Active CN219454709U (en) | 2023-04-04 | 2023-04-04 | Shaft furnace roasting heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219454709U (en) |
-
2023
- 2023-04-04 CN CN202320718190.5U patent/CN219454709U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231117 Address after: No. 12 Anning Middle Road, Yanbian Vanadium and Titanium Industry Development Zone, Xinjiu Town, Yanbian County, Panzhihua City, Sichuan Province, 617100 Patentee after: Panzhihua Minghengtai Mining Co.,Ltd. Address before: No.9 Anning Middle Road, Yanbian Vanadium and Titanium Industry Development Zone, Xinjiu Town, Yanbian County, Panzhihua City, Sichuan Province 617000 Patentee before: Panzhihua Guangchuan Metallurgy Co.,Ltd. |