CN221122999U - Furnace door curtain device for heating furnace - Google Patents
Furnace door curtain device for heating furnace Download PDFInfo
- Publication number
- CN221122999U CN221122999U CN202322764431.2U CN202322764431U CN221122999U CN 221122999 U CN221122999 U CN 221122999U CN 202322764431 U CN202322764431 U CN 202322764431U CN 221122999 U CN221122999 U CN 221122999U
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- wall pipe
- stainless steel
- steel plates
- heating furnace
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 49
- 239000010935 stainless steel Substances 0.000 claims abstract description 49
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model discloses a furnace door curtain device for a heating furnace, which comprises a first thick-wall pipe and lifting lugs, wherein stainless steel plates are fixedly connected inside the first thick-wall pipe, a plurality of stainless steel plates are arranged and adjacently arranged, the stainless steel plates are connected in a rotating way, a second thick-wall pipe and a third thick-wall pipe are arranged on the side surfaces of the stainless steel plates, iron shafts are inserted inside the second thick-wall pipe and the third thick-wall pipe so as to realize the rotating connection, the lifting lugs are fixedly connected with the thick-wall pipes, bearing chains are connected inside the lifting lugs, a furnace door curtain formed by the stainless steel plates can block an outlet of the heating furnace, when the furnace door is opened and tapped, the stainless steel plates are propped against the stainless steel plates to shield the outlet of the heating furnace, heat loss is reduced, heat required by the heating furnace for recovering a high-temperature environment can be saved, and economic benefit is improved.
Description
Technical Field
The utility model relates to the technical field of heating furnaces, in particular to a furnace door curtain device for a heating furnace.
Background
The step-by-step continuous heating furnace is widely used in the steel rolling production of metallurgical industry. The furnace door of the heating furnace needs to be opened in the tapping process, cold air is easy to be inhaled or hot air is emitted outwards, the temperature in the furnace is reduced after the cold air enters the furnace, a large amount of energy is consumed to maintain the original temperature, and meanwhile, the burning loss of a plate blank is increased. In general, the opening time of each steel furnace door is 30 seconds, the energy medium is greatly dissipated, and the furnace temperature is controlled by the pressure of the furnace chamber only, so that the energy-saving requirement cannot be met, and a furnace door curtain with good heat preservation effect is required to be designed to reduce heat loss.
Disclosure of utility model
The present utility model is directed to a door curtain device for a heating furnace, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the furnace door curtain device for the heating furnace comprises a first thick-wall pipe, wherein stainless steel plates are fixedly connected inside the first thick-wall pipe, the stainless steel plates are provided with a plurality of stainless steel plates which are adjacently arranged, and the upper stainless steel plates and the lower stainless steel plates which are adjacent are rotationally connected;
The stainless steel plates which are adjacent up and down can form a structure similar to a hinge, so that the flexibility of the stainless steel plates is improved, the steel can smoothly push the stainless steel plates to rotate during tapping, the stainless steel plates are attached to the steel plates, and the heat loss can be reduced;
The side surface of the stainless steel plate is provided with a second thick-wall pipe and a third thick-wall pipe, and an iron shaft is inserted into the second thick-wall pipe and the third thick-wall pipe so as to realize rotary connection between the second thick-wall pipe and the third thick-wall pipe;
The lifting lug is provided with a plurality of lifting lugs and is fixedly connected with the first thick-wall pipe, a bearing chain is connected inside the lifting lug, the bearing chain can hoist a plurality of stainless steel plates, the stainless steel plates are kept in a vertical state, and the heating furnace is blocked.
Further, the surface of the iron shaft is provided with a limit groove, the surface of the iron shaft is connected with balls in a rolling mode, the balls are arranged in the limit groove, and the balls rotate to reduce abrasion among the second thick-wall pipe, the third thick-wall pipe and the iron shaft and reduce friction noise.
Further, the surface of the first thick-wall pipe is provided with a containing hole, a stop bolt is screwed in the containing hole, and the stop bolt is positioned on the side surface of the end part of the iron shaft and can prevent the iron shaft from falling from the third thick-wall pipe, so that the connection stability of the stainless steel plate is improved.
Further, the channel-section steel is installed at first thick-wall pipe both ends, first thick-wall pipe sliding connection is inside the channel-section steel, and the channel-section steel restricts the movable range of first thick-wall pipe, prevents first thick-wall pipe swing.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The outlet of the heating furnace can be blocked by the furnace door curtain formed by a plurality of stainless steel plates, when the furnace door is opened to discharge steel, the stainless steel plates are propped open by the steel, the stainless steel plates are lapped on the steel, the outlet of the heating furnace is shielded, the heat loss is reduced, the heat required by the heating furnace for recovering the high-temperature environment can be saved, and the economic benefit is improved.
(2) The upper and lower adjacent stainless steel plates are connected in a rotating mode through the iron shaft, the left and right adjacent stainless steel plates are not mutually influenced in flexibility, steel materials are different in size, only the corresponding number of the stainless steel plates can be jacked up, all the stainless steel plates cannot be jacked up, the shielding effect of the stainless steel plates on the outlet of the heating furnace is better, the energy-saving effect is better, and the temperature of an operation environment is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of a rotational connection between stainless steel plates according to the present utility model;
FIG. 3 is a schematic view of the connection of the stainless steel plate of the present utility model to a second thick-walled pipe and a third thick-walled pipe;
FIG. 4 is a schematic view of deflection of a stainless steel plate according to the present utility model.
In the figure: 1. channel steel; 2. a first thick-walled tube; 3. lifting lugs; 4. a load-bearing chain; 5. a stainless steel plate; 6. a second thick-walled tube; 7. an iron shaft; 8. a stop bolt; 9. a third thick-walled tube; 10. a ball; 11. a limit groove; 12. a receiving hole; 13. and (5) shackle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled 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.
Examples:
Referring to fig. 1-4, a door curtain device for a heating furnace comprises a first thick-wall pipe 2, wherein stainless steel plates 5 are fixedly connected inside the first thick-wall pipe 2, the stainless steel plates 5 are provided with a plurality of stainless steel plates 5 which are adjacently arranged, and the upper and lower adjacent stainless steel plates 5 are rotationally connected;
The first thick-walled tube 2 has an outer diameter of 132mm, a wall thickness of 9mm, a length of 200mm, a width of 150mm, and a thickness of 15mm of the stainless steel plate 5, and a blackbody emissivity C of 5.675W/(squaremeter K4) of the stainless steel plate 5, a shielding coefficient phi=0.7;
The side surface of the stainless steel plate 5 is provided with a second thick-wall pipe 6 and a third thick-wall pipe 9, an iron shaft 7 is inserted into the second thick-wall pipe 6 and the third thick-wall pipe 9 to realize rotary connection between the two, the second thick-wall pipe 6 and the third thick-wall pipe 9 are consistent in size, the outer diameter is 22mm, and the wall thickness is 4mm;
The left and right sides of the upper side surface of the stainless steel plate 5 are respectively provided with a second thick-wall pipe 6, and the middle part of the lower side surface of the stainless steel plate 5 is provided with a third thick-wall pipe 9, so that the upper and lower adjacent stainless steel plates 5 can be connected conveniently;
Lifting lug 3, lifting lug 3 set up a plurality of and with 2 fixed connection of first thick wall pipe, lifting lug 3 internally connected has bearing chain 4, and bearing chain 4 is used for hanging the door curtain.
In this embodiment, as shown in fig. 2, the surface of the iron shaft 7 is provided with a limit groove 11, and the surface of the iron shaft 7 is connected with a ball 10 in a rolling manner, the ball 10 is placed in the limit groove 11, the limit groove 11 can limit the ball 10 to do circular motion only, the ball 10 is in contact with the inner walls of the first thick-wall pipe 2, the second thick-wall pipe 6 and the third thick-wall pipe 9, friction resistance between the iron shaft 7 and the first thick-wall pipe 2, the second thick-wall pipe 6 and the third thick-wall pipe 9 is reduced, mechanical abrasion is reduced, and noise caused by metal friction can be reduced.
In this embodiment, as shown in fig. 2 and 3, the surface of the first thick-wall pipe 2 is provided with a receiving hole 12, a stop bolt 8 is screwed in the receiving hole 12, the stop bolt 8 is located on the side surface of the end part of the iron shaft 7, the stop bolt 8 can prevent the iron shaft 7 from moving, and the rotating connection stability of the stainless steel plate 5 is improved.
In this embodiment, as shown in fig. 1, the shackle 13 is connected to the inside of the lifting lug 3, the lower end of the bearing chain 4 is connected to the shackle 13, the shackle 13 facilitates the disassembly of the lifting lug 3 and the bearing chain 4, and when the bearing chain 4 is damaged, the replacement is convenient and quick.
In this embodiment, as shown in fig. 1, the channel steel 1 is installed at the two ends of the first thick-wall pipe 2, the first thick-wall pipe 2 is slidably connected inside the channel steel 1, the height of the channel steel 1 is 150mm, the width is 150mm, the thickness is 8mm, the channel steel 1 is welded and fixed on the furnace door upright post, the channel steel 1 can limit the two ends of the first thick-wall pipe 2, and the first thick-wall pipe 2 is prevented from automatically moving.
Specifically, during the use, in tapping, the furnace gate is fully opened, steel is sent out from the heating furnace, and when steel removed, promote corrosion resistant plate 5, every corrosion resistant plate 5 can independently rotate and do not interfere with each other, and corrosion resistant plate 5 pivoted state is as shown in fig. 4, and corrosion resistant plate 5 drops naturally under the action of gravity, can shield the export of heating furnace, plays temporary shutoff's effect, slows down the loss of heat energy, and the heating furnace resumes the temperature faster, improves the machining efficiency of steel.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A door curtain apparatus for a heating furnace, comprising:
The stainless steel pipe comprises a first thick-wall pipe (2), wherein stainless steel plates (5) are fixedly connected inside the first thick-wall pipe (2), the stainless steel plates (5) are provided with a plurality of stainless steel plates (5) which are adjacently arranged, and the stainless steel plates (5) which are adjacent up and down are rotationally connected;
The side surface of the stainless steel plate (5) is provided with a second thick-wall pipe (6) and a third thick-wall pipe (9), and an iron shaft (7) is inserted into the second thick-wall pipe (6) and the third thick-wall pipe (9) so as to realize rotary connection;
Lug (3), lug (3) set up a plurality of and with first thick-wall pipe (2) fixed connection, lug (3) internally connected with bearing chain (4).
2. The door curtain device for a heating furnace according to claim 1, wherein: the surface of the iron shaft (7) is provided with a limit groove (11), the surface of the iron shaft (7) is connected with a ball (10) in a rolling way, and the ball (10) is arranged in the limit groove (11).
3. The door curtain device for a heating furnace according to claim 1, wherein: the surface of the first thick-wall pipe (2) is provided with a containing hole (12), a stop bolt (8) is screwed in the containing hole (12), and the stop bolt (8) is positioned on the side face of the end part of the iron shaft (7).
4. The door curtain device for a heating furnace according to claim 1, wherein: the lifting lug (3) is internally connected with a shackle (13), and the lower end of the bearing chain (4) is connected with the shackle (13).
5. The door curtain device for a heating furnace according to claim 1, wherein: channel steel (1) is installed at the both ends of first thick-wall pipe (2), first thick-wall pipe (2) sliding connection is inside channel steel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322764431.2U CN221122999U (en) | 2023-10-13 | 2023-10-13 | Furnace door curtain device for heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322764431.2U CN221122999U (en) | 2023-10-13 | 2023-10-13 | Furnace door curtain device for heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221122999U true CN221122999U (en) | 2024-06-11 |
Family
ID=91338501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322764431.2U Active CN221122999U (en) | 2023-10-13 | 2023-10-13 | Furnace door curtain device for heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221122999U (en) |
-
2023
- 2023-10-13 CN CN202322764431.2U patent/CN221122999U/en active Active
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