CN221005974U - Cooling sealing cover for large metallurgical bottom blowing furnace - Google Patents
Cooling sealing cover for large metallurgical bottom blowing furnace Download PDFInfo
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- CN221005974U CN221005974U CN202323008884.9U CN202323008884U CN221005974U CN 221005974 U CN221005974 U CN 221005974U CN 202323008884 U CN202323008884 U CN 202323008884U CN 221005974 U CN221005974 U CN 221005974U
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- shell
- bottom blowing
- blowing furnace
- movable door
- water
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- 238000007664 blowing Methods 0.000 title claims abstract description 52
- 238000001816 cooling Methods 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 title abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000000428 dust Substances 0.000 claims abstract description 19
- 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 8
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000003723 Smelting Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model belongs to the technical field of auxiliary equipment used in nonferrous metal smelting industry, and particularly relates to a cooling sealing cover for a large-scale metallurgical bottom blowing furnace, wherein the cooling sealing cover comprises a shell, a split movable door, a water circulation flow channel and a dust collection pipeline, the back of the shell is arranged on a vertical flue of a boiler, the lower part of the shell is matched with the shape of the bottom blowing furnace, a gap is reserved between the shell and the bottom blowing furnace, and the bottom of the shell is arranged on a floor; the split type movable door is rotatably arranged at the lower part of the front surface of the shell; the water circulation flow channel is embedded in the shell wall and the split type movable door, so that the internal circulating water flows in a serpentine manner; the dust collection pipeline is arranged above the shell and communicated and fixed with the top of the shell. According to the utility model, circulating water is introduced into the cooling sealing cover to forcibly cool down, so that the movable door is prevented from being deformed at high temperature, and the service life of the movable door is prolonged.
Description
Technical Field
The utility model belongs to the technical field of auxiliary equipment used in nonferrous metal smelting industry, and particularly relates to a cooling sealing cover for a large-scale metallurgical bottom blowing furnace.
Background
The bottom blowing furnace belongs to a molten pool smelting metallurgical furnace and is mainly used for slag formation of a molten pool of lead smelting raw materials and generation of part of crude lead. When the bottom blowing furnace is in normal production, high-temperature high-sulfur flue gas is required to be discharged to a boiler system through a flue gas outlet of the bottom blowing furnace for cooling, and then the next dust removal and flue gas acid making process is carried out. When the furnace needs to be maintained, the position of the smoke outlet rotated out of the bottom blowing furnace needs to be provided with a sealing cover device which is high-temperature resistant, can be opened for maintenance and can be closed for heat preservation.
The traditional movable door of the sealing cover is made of steel plates, the temperature of a smoke outlet of the bottom blowing furnace reaches about 1000 ℃ in the process of turning out and overhauling, a welding seam can be broken to generate gaps under the condition that the steel plates continuously work at high temperature, smoke is discharged, repair welding is needed manually, the temperature of the area is high, the operation of workers is not facilitated, and if the deformation is serious, the movable door cannot be normally opened and closed; the method causes the on-site unorganized emission condition to be difficult to treat, the working environment is bad, and the maintenance workload of workers is large.
Disclosure of Invention
The utility model aims to solve the problem that high-temperature flue gas causes serious deformation of a sealing flashboard of a flue outlet of a bottom blowing furnace, and provides a cooling sealing cover for a large-scale metallurgical bottom blowing furnace.
In order to achieve the above purpose, the technical scheme adopted is as follows:
The utility model provides a cooling sealing cover for a large-scale metallurgical bottom blowing furnace, wherein a smoke outlet of the bottom blowing furnace is communicated with a boiler vertical lift flue, and the cooling sealing cover comprises:
The back of the shell is arranged on the boiler vertical-lifting flue, the lower part of the shell is matched with the shape of the bottom blowing furnace, a gap is reserved between the shell and the bottom of the shell, and the bottom of the shell is arranged on the floor;
the split type movable door is rotatably arranged at the lower part of the front surface of the shell;
The water circulation flow channel is embedded in the shell wall and the split type movable door, so that the internal circulating water flows in a serpentine manner;
And the dust collection pipeline is arranged above the shell and communicated and fixed with the top of the shell.
According to the cooling sealing cover for the large-scale metallurgical bottom blowing furnace, preferably, the shell is a rectangular cover body composed of a top plate, two side plates, a front plate and a movable back plate, channel steel tracks are oppositely arranged between two sides of the back of the shell and the vertical lifting flue of the boiler, and the movable back plate is arranged on the two channel steel tracks in a matched sliding mode.
According to the cooling sealing cover for the large metallurgical bottom blowing furnace, preferably, the water circulation flow channel is embedded in the top plate, the two side plates, the front plate and the split movable door, the water circulation flow channel is formed by a plurality of guide plates which are paved at intervals to form a serpentine waterway, the head end of the serpentine waterway is connected to the water inlet pipe through the inlet hose, and the tail end of the serpentine waterway is connected to the water return pipe through the outlet hose.
According to the cooling sealing cover for the large-scale metallurgical bottom blowing furnace, preferably, the top of the movable backboard is provided with the lifting lug, and the lifting lug is connected with the lifting equipment through the steel wire rope; the movable backboard is vertically embedded with a plurality of water pipes which are arranged side by side, the upper water inlet ends of the water pipes are connected to the water inlet pipe through a first main pipe, and the lower water outlet ends of the water pipes are connected to the water return pipe through a second main pipe.
According to the cooling seal cover for the large metallurgical bottom blowing furnace, preferably, the top plate, the two side plates, the front plate and the outside of the split movable door are welded with radiating fins.
According to the cooling seal cover for the large metallurgical bottom blowing furnace of the present utility model, preferably, the split movable door is located below the front plate of the housing.
According to the cooling sealing cover for the large-scale metallurgical bottom blowing furnace, preferably, the water inlet pipe and the water return pipe are provided with the flow temperature detection device and the pneumatic regulating valve.
According to the cooling sealing cover for the large-scale metallurgical bottom blowing furnace, preferably, the dust collecting valve is arranged on the dust collecting pipeline.
By adopting the technical scheme, the beneficial effects are that:
The cooling sealing cover for the large-scale metallurgical bottom blowing furnace is simple in structure, practical and low in production cost, when the bottom blowing furnace is turned out to carry out maintenance work, circulating water is introduced into the cooling sealing cover to forcibly cool down, the movable door is prevented from deforming in a high-temperature environment for a long time, the service life of the movable door is prolonged, the failure rate is low, the maintenance workload of workers is greatly reduced, the maintenance efficiency of the bottom blowing furnace is improved, the requirement on operators is low, the problem that the on-site unorganized emission condition is difficult to treat and the environmental protection hidden trouble of severe working environment is thoroughly solved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description will briefly explain the drawings of the embodiments of the present utility model. Wherein the showings are for the purpose of illustrating some embodiments of the utility model only and not for the purpose of limiting the same.
FIG. 1 is a schematic view of a cooling seal cover for a large metallurgical bottom-blowing furnace according to an embodiment of the present utility model
FIG. 2 is a second schematic view of a cooling seal cover for a large metallurgical bottom-blowing furnace according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of a portion of FIG. 1 at A;
fig. 4 is another angular schematic view of the baffle of fig. 3.
The meaning represented by the numbers in the figures is:
1. Bottom blowing furnace, 2. Boiler uptake, 3. Dust collecting duct, 401. Roof, 402. Side plates, 403. Front plate, 404. Moving back plate, 5. Channel steel track, 6. Deflector, 7. Inlet hose, 8. Inlet pipe, 9. Outlet hose, 10. Return pipe, 11. Lifting lug, 12. Wire rope, 13. Lifting equipment, 14. Water pipe, 15. First header, 16. Handle, 17. Radiating fin, 18. Split moving door, 19. Pneumatic regulating valve, 20. Flow temperature detecting device, 21. Dust collecting valve, 22. Outlet flue, 23. Rotating shaft.
Detailed Description
An exemplary embodiment of the present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art.
As shown in fig. 1 and 2, the cooling seal cover for a large-scale metallurgical bottom blowing furnace of the present embodiment, wherein the smoke outlet 22 of the bottom blowing furnace 1 communicates with the boiler uptake 2, and the boiler uptake 2 is arranged vertically. The cooling seal cover comprises a shell, a split type movable door 18, a water circulation runner and a dust collection pipeline 3, wherein the back of the shell is arranged on a boiler vertical flue 2, the lower part of the shell is matched with the shape of a bottom blowing furnace 1, a gap is reserved between the shell and the bottom blowing furnace (rock wool can be plugged for sealing after the bottom blowing furnace), the free rotation of the bottom blowing furnace 1 is not affected, and the bottom of the bottom blowing furnace is arranged on a floor. The split type movable door 18 is rotatably provided at the lower portion of the front surface of the housing, and is openable for maintenance work. The water circulation flow channels are embedded in the housing walls and in the split movable doors 18 so that the internal circulating water flows in a serpentine shape. The dust collection pipeline 3 is arranged above the shell and communicated and fixed with the top of the shell, and a dust collection valve 21 is arranged on the dust collection pipeline 3.
In this embodiment, the casing is a rectangular cover body composed of a top plate 401, two side plates 402, a front plate 403 and a movable back plate 404, channel steel rails 5 are oppositely arranged between two sides of the back of the casing and the boiler vertical flue 2, the movable back plate 404 is arranged on the two channel steel rails 5 in a matching sliding manner, when normal production is performed, the movable back plate 404 falls down to separate the smoke outlet 22 of the bottom blowing furnace 1 from the inner cavity of the cooling seal cover, and when the bottom blowing furnace 1 is converted, the movable back plate 404 is lifted, so that the smoke outlet 22 of the bottom blowing furnace 1 can be communicated with the boiler vertical flue 2. The top of movable backplate 404 is provided with lug 11, and lug 11 passes through wire rope 12 and is connected with lifting device 13, and lifting device 13 contains motor and reel here, and the motor drive reel rotates rope and receives the rope, realizes the promotion and the decline of movable backplate 404. Further, a plurality of water pipes 14 are vertically embedded in the movable back plate 404, the upper water inlet ends of the plurality of water pipes 14 are connected to the water inlet pipe 8 through the first main pipe 15, the lower water outlet ends are connected to the water return pipe 10 through the second main pipe, and water flows into the water pipes 14 from the water inlet pipe 8 through the first main pipe 15 respectively and then flows into the water return pipe 10 through the second main pipe.
Specifically, the water circulation runner is embedded in the top plate 401, the two side plates 402, the front plate 403 and the split type movable door 18, as shown in fig. 3 and 4, the water circulation runner is formed by paving a plurality of guide plates 6 at intervals, a serpentine waterway is formed, the head end of the water circulation runner is connected to the water inlet pipe 8 through the inlet hose 7, the tail end of the water circulation runner is connected to the water return pipe 10 through the outlet hose 9, the closed water circulation can ensure the flue gas effect of the cooling furnace, the problem that the movable door is deformed under high temperature is solved through the water circulation runner, the normal production requirement is met, and the service life is prolonged to 36 months compared with the prior 3 months.
In order to further enhance the effect of cooling the flue gas, the heat radiating fins 17 are welded to the outer portions of the top plate 401, the two side plates 402, the front plate 403 and the split movable door 18, and the heat radiating area is increased.
The split type movable door 18 is positioned below the front plate 403 of the shell, I-steel is arranged on the left side and the right side of the front surface of the shell, and the rotating shaft 23 of the split type movable door 18 is connected with a mounting seat on the I-steel through a bearing. When the split type movable door 18 is closed, the tightness of the cooling seal cover is ensured. A handle 16 is provided on the front of the side-by-side type sliding door 18 to facilitate opening and closing.
The water inlet pipe 8 and the water return pipe 10 are provided with a flow temperature detection device 20 and a pneumatic regulating valve 19, the flow temperature detection device 20 adopts a flowmeter and a thermocouple and is used for monitoring the flow rate and the temperature of water, and the flow rate of the water is regulated through the pneumatic regulating valve 19, so that the normal water circulation inside the shell and the split movable door 18 is ensured.
The working principle is as follows:
When the bottom blowing furnace 1 needs to be rotated out for periodic maintenance and overhaul, the split type movable door 18 is in a closed state, the bottom blowing furnace 1 rotates until the smoke outlet 22 enters the cooling sealing cover to stop rotating, and after the converter is completed, the movable back plate 404 is lifted under the action of the lifting equipment 13. The pneumatic regulating valve 19 is matched with the flow temperature detecting device 20, the circulating water flow is strictly controlled, meanwhile, the dust collecting valve 21 on the dust collecting pipeline 3 is opened, and under the adsorption effect of a fan, furnace flue gas is discharged into the boiler jack-up flue 2 and the dust collecting pipeline 3 from the flue outlet 22, so that the smoke is prevented from being discharged in an unstructured way.
When the accumulated slag at the smoke outlet 22 and the boiler lifting flue 2 is required to be cleaned after the temperature of the kiln is reduced, the split type movable door 18 is opened, and the accumulated slag is timely closed after cleaning.
After the maintenance of the bottom blowing furnace 1 is completed and the production is restored, the movable backboard 404 falls down, the circulating water flow is reduced through the pneumatic regulating valve 19, the energy-saving effect is achieved, then the dust collecting valve 21 is closed, and the flue gas of the furnace is ensured to enter the steam boiler equipment and the subsequent equipment for treatment through the boiler vertical lifting flue 2.
In the description of the present utility model, it should be understood that the expressions "first" and "second" are used to describe various elements of the present utility model and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that there may be intervening elements present therebetween; i.e. the positional relationship of direct connection and indirect connection is covered.
It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.
It should be noted that terms like "upper," "lower," "left," "right," and the like, which indicate an orientation or a positional relationship, are merely used to indicate a relative positional relationship, and are provided for convenience in describing the present utility model, and do not necessarily refer to devices or elements having a particular orientation, being constructed and operated in a particular orientation; when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
Preferred embodiments for carrying out the utility model have been described in detail hereinabove, but it should be understood that these embodiments are merely illustrative and are not intended to limit the scope, applicability or configuration of the utility model in any way. The scope of the utility model is defined by the appended claims and equivalents thereof. Many modifications and variations of the foregoing embodiments will be apparent to those of ordinary skill in the art in light of the teachings of this utility model, which will fall within the scope of this utility model.
Claims (8)
1. A cooling seal cover for a large metallurgical bottom blowing furnace, the flue outlet of the bottom blowing furnace being in communication with a boiler uptake, the cooling seal cover comprising:
The back of the shell is arranged on the boiler vertical-lifting flue, the lower part of the shell is matched with the shape of the bottom blowing furnace, a gap is reserved between the shell and the bottom of the shell, and the bottom of the shell is arranged on the floor;
the split type movable door is rotatably arranged at the lower part of the front surface of the shell;
The water circulation flow channel is embedded in the shell wall and the split type movable door, so that the internal circulating water flows in a serpentine manner;
And the dust collection pipeline is arranged above the shell and communicated and fixed with the top of the shell.
2. The cooling seal cover for a large-scale metallurgical bottom blowing furnace according to claim 1, wherein the shell is a rectangular cover body composed of a top plate, two side plates, a front plate and a movable back plate, channel steel tracks are oppositely arranged between the two sides of the back of the shell and a boiler vertical flue, and the movable back plate is arranged on the two channel steel tracks in a matched sliding manner.
3. The cooling seal cover for a large-scale metallurgical bottom blowing furnace according to claim 2, wherein the water circulation runner is embedded in a top plate, two side plates, a front plate and a split movable door, the water circulation runner is formed by a plurality of guide plates which are paved at intervals to form a serpentine waterway, the head end is connected to the water inlet pipe through an inlet hose, and the tail end is connected to the water return pipe through an outlet hose.
4. The cooling seal cover for a large-scale metallurgical bottom blowing furnace according to claim 3, wherein a lifting lug is arranged at the top of the movable back plate, and the lifting lug is connected with lifting equipment through a steel wire rope; the movable backboard is vertically embedded with a plurality of water pipes which are arranged side by side, the upper water inlet ends of the water pipes are connected to the water inlet pipe through a first main pipe, and the lower water outlet ends of the water pipes are connected to the water return pipe through a second main pipe.
5. The cooling seal cover for a large metallurgical bottom blowing furnace according to claim 2, wherein the top plate, the two side plates, the front plate and the exterior of the split movable door are welded with heat radiating fins.
6. The cooling seal cover for a large metallurgical bottom blowing furnace of claim 2, wherein the split movable door is located below the front plate of the enclosure.
7. The cooling seal cover for a large-scale metallurgical bottom blowing furnace according to claim 3 or 4, wherein the water inlet pipe and the water return pipe are provided with a flow temperature detecting device and a pneumatic adjusting valve.
8. The cooling seal cover for a large metallurgical bottom blowing furnace according to claim 1, wherein the dust collecting valve is provided on the dust collecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323008884.9U CN221005974U (en) | 2023-11-08 | 2023-11-08 | Cooling sealing cover for large metallurgical bottom blowing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323008884.9U CN221005974U (en) | 2023-11-08 | 2023-11-08 | Cooling sealing cover for large metallurgical bottom blowing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221005974U true CN221005974U (en) | 2024-05-24 |
Family
ID=91088908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323008884.9U Active CN221005974U (en) | 2023-11-08 | 2023-11-08 | Cooling sealing cover for large metallurgical bottom blowing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221005974U (en) |
-
2023
- 2023-11-08 CN CN202323008884.9U patent/CN221005974U/en active Active
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