CN216378316U - Annealing furnace for continuous production of steel pipes - Google Patents
Annealing furnace for continuous production of steel pipes Download PDFInfo
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- CN216378316U CN216378316U CN202122493906.XU CN202122493906U CN216378316U CN 216378316 U CN216378316 U CN 216378316U CN 202122493906 U CN202122493906 U CN 202122493906U CN 216378316 U CN216378316 U CN 216378316U
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Abstract
The application discloses steel pipe is annealing stove for continuous production, including lagging casing and furnace body inner bag, the lagging casing is suitable for reducing the heat of furnace body inner bag and scatters and disappears, the inner wall is provided with intensification heating group around the furnace body inner bag, cooling heating group and constant temperature heating group, constant temperature heating group is located between intensification heating group and the cooling heating group, be provided with first division board between constant temperature heating group and the intensification heating group, be provided with the second division board between constant temperature heating group and the cooling heating group, the furnace body inner bag is provided with the heat absorption suspension, heat dissipation suspension and one-way heat conduction stick. The conveying mechanism is arranged in the annealing furnace, and automatic steel pipe feeding and discharging can be realized by matching with the feeding and discharging inclined plates, so that the manual participation is reduced, and the safety in the processing process is improved; through dividing the inside of annealing stove into three regions for heat recovery can be realized, the ability loss in the annealing stove working process has been reduced, thereby annealing treatment's cost has been reduced.
Description
Technical Field
The application relates to the technical field of heat treatment equipment, in particular to an annealing furnace for continuous production of steel pipes.
Background
At present, the steel pipe needs to be annealed in the production process, aiming at reducing residual stress, stabilizing size and reducing deformation and crack tendency; refining crystal grains, adjusting the structure and eliminating the structure defects. The annealing treatment is generally performed in an annealing furnace.
However, the existing annealing furnaces for steel pipe production have the following disadvantages: for example, the workers are required to participate in feeding and taking materials, the temperature of the annealing furnace is high, so that the workers are required to wear protective articles, the labor load of the workers is increased, the work safety of the workers cannot be guaranteed completely, the temperature of the annealing furnace fluctuates when the workers take and place the steel pipes, the energy consumption of the annealing furnace is increased, and the cost of the steel pipe annealing treatment is increased. In order to solve the above problems, a novel annealing furnace for continuous production of steel pipes is proposed.
Disclosure of Invention
The steel pipe annealing process aims to reduce the labor participation degree in the steel pipe taking and placing process, improve the safety factor of the steel pipe in the annealing process, and reduce the energy consumption of the steel pipe annealing process, so that the treatment cost is reduced.
In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the annealing furnace for continuous production of the steel pipes comprises a heat-insulating shell and a furnace body liner, wherein the heat-insulating shell is suitable for reducing heat loss of the furnace body liner, the front inner wall and the rear inner wall of the furnace body liner are provided with a heating-up group, a cooling-down group and a constant-temperature group, the heating-up group is close to the right end of the furnace body liner, the temperature of the heating-up group is sequentially raised from right to left, the cooling-down group is close to the left end of the furnace body liner, the cooling-down group is sequentially lowered from right to left, the constant-temperature group is positioned between the heating-up group and the cooling-down group, a first partition plate is arranged between the constant-temperature group and the heating-up group, and a second partition plate is arranged between the constant-temperature group and the cooling-down group to partition the interior of the annealing furnace into three functional areas;
the interior top surface of furnace body inner bag just is located the right-hand fixedly connected with heat absorption suspension of first division board, the interior top surface ware of furnace body inner bag is located the left fixedly connected with heat dissipation suspension of second division board, the upper surface of furnace body inner bag just is located the inside of lagging casing and is provided with one-way heat conduction stick, one-way heat conduction stick be suitable for with the heat transfer of heat absorption suspension gives the heat dissipation suspension constitutes a heat recovery mechanism, the interior bottom of furnace body inner bag is provided with conveying mechanism for the steel pipe in the automatic conveying annealing stove.
Preferably, the first partition plate and the second partition plate are of hollow structures, and the front side surface, the rear side surface and the upper surface of the first partition plate and the second partition plate are fixedly connected with the inner wall of the furnace body liner.
Preferably, the conveying mechanism comprises a heat-resistant chain belt, a supporting guide frame and a transmission roller shaft, a plurality of steel pipe sinking grooves distributed at equal intervals are formed in the outer side surface of the heat-resistant chain belt, the supporting guide frame is suitable for supporting the heat-resistant chain belt, and the transmission roller shaft is rotatably connected with the inner container of the annealing furnace body through a bearing and provides moving power for steel pipes in the annealing furnace.
Preferably, an auxiliary heating rod is arranged on the inner top surface of the furnace body liner and between the first partition plate and the second partition plate, and the auxiliary heating rod is suitable for rapidly increasing the temperature in the annealing furnace.
Preferably, the heat preservation shell is sleeved outside the furnace body inner container, the right ends of the heat preservation shell and the furnace body inner container are provided with feeding inclined plates, inlet baffles are fixedly connected to the upper portions of the feeding inclined plates, discharging inclined plates are arranged at the left ends of the heat preservation shell and the furnace body inner container, outlet baffles are fixedly connected to the upper portions of the discharging inclined plates, and steel pipes can automatically enter and exit the annealing furnace conveniently.
Compared with the prior art, the beneficial effect of this application lies in:
(1) compared with the prior art, the transmission mechanism is arranged in the annealing furnace, and automatic steel pipe feeding and discharging can be realized by matching with the feeding and discharging inclined plates, so that the manual participation is reduced, and the safety in the processing process is improved;
(2) this scheme is through being divided into three regions with the inside of annealing stove for can realize heat recovery, reduce the ability loss in the annealing stove working process, thereby reduce annealing treatment's cost.
Drawings
FIG. 1 is a first view showing the external structure of the annealing furnace for continuous production of steel pipes;
FIG. 2 is a second view showing the external structure of the annealing furnace for continuous production of steel pipes;
FIG. 3 is a left side view of the entire structure of the annealing furnace for continuous production of steel pipes;
FIG. 4 is a plan sectional view at A-A of the annealing furnace for continuous production of steel pipes of FIG. 3;
FIG. 5 is a left end view of the furnace body of the annealing furnace for continuous production of steel pipes;
FIG. 6 is a sectional line perspective view of the annealing furnace for continuous production of a steel pipe, taken along line B in FIG. 5;
FIG. 7 is a perspective view of the furnace body liner of the annealing furnace for the continuous production of steel pipes;
FIG. 8 is a left end view of the furnace body liner of the annealing furnace for continuous production of steel pipes;
FIG. 9 is a plan sectional view at C-C of the annealing furnace for continuous production of steel pipes of FIG. 7;
FIG. 10 is a plan sectional view taken along line D-D in FIG. 8 of the annealing furnace for continuous production of steel pipes.
In the figure: 1. a feeding inclined plate; 2. an inlet baffle; 3. a discharge sloping plate; 4. an outlet baffle; 5. a heat-insulating shell; 6. a furnace body liner; 7. a conveying mechanism; 701. a heat-resistant chain belt; 702. a support guide; 703. a drive roller shaft; 704. sinking a steel pipe into a groove; 8. a first partition plate; 9. a second partition plate; 10. a unidirectional heat conducting rod; 11. a heating group for heating; 12. a cooling and heating group; 13. a heat absorbing suspension; 14. a heat dissipating suspension; 15. an auxiliary heating rod; 16. and (5) a constant-temperature heating group.
Detailed Description
The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.
The annealing furnace for continuous production of steel pipes shown in fig. 1-10 comprises a heat-insulating housing 5 and a furnace body liner 6, and forms a double-layer structure of the annealing furnace, wherein the heat-insulating housing 5 is suitable for reducing heat loss of the furnace body liner 6, a heating set 11 for raising temperature, a heating set 12 for lowering temperature and a heating set 16 for keeping constant temperature are arranged on the front and back inner walls of the furnace body liner 6, the heating set 11 for raising temperature is close to the right end of the furnace body liner 6, the heating set 11 for raising temperature is sequentially raised from right to left, so that the temperature of the steel pipes in the conveying process is slowly and gradually raised, the heating set 12 for lowering temperature is close to the left end of the furnace body liner 6, and the heating set 12 for lowering temperature is sequentially lowered from right to left, so that the temperature of the steel pipes in the conveying process is lowered at a proper speed, and the heating set 16 for keeping constant temperature between the heating set 11 for lowering temperature and the heating set 12 for keeping proper time.
A first partition plate 8 is arranged between the constant-temperature heating group 16 and the temperature-rising heating group 11, a second partition plate 9 is arranged between the constant-temperature heating group 16 and the temperature-lowering heating group 12 and used for dividing the interior of the annealing furnace into a temperature-rising area, a constant-temperature area and a temperature-lowering area, the constant-temperature area in the three areas is longer than the sum of the temperature-rising area and the temperature-lowering area, the first partition plate 8 and the second partition plate 9 are of a hollow structure and used for reducing heat convection among the three areas, the front side surface, the rear side surface and the upper surface of the first partition plate 8 and the second partition plate 9 are fixedly connected with the inner wall of the furnace body liner 6, an auxiliary heating rod 15 is arranged on the inner top surface of the furnace body liner 6 and located between the first partition plate 8 and the second partition plate 9, the auxiliary heating rod 15 is suitable for rapidly increasing the furnace temperature of the annealing furnace, and the temperature rise in the furnace is accelerated when the annealing furnace is just started.
The inner top surface of the furnace body liner 6 is fixedly connected with a heat absorption suspension 13 on the right of the first partition plate 8 and is used for absorbing the redundant heat of the cooling area and accelerating the cooling efficiency of the cooling area, the inner top surface device of the furnace body liner 6 is fixedly connected with a heat dissipation suspension 14 on the left of the second partition plate 9 and transmits the conducted redundant heat to the heating area and accelerates the heating efficiency of the heating area, the one-way heat conducting rod 10 is arranged on the upper surface of the furnace body liner 6 and inside the heat preservation shell 5, the one-way heat conducting rod 10 is suitable for transmitting the heat of the heat absorption suspension 13 to the heat dissipation suspension 14, the one-way heat conducting rod 10 is made of a crystal material processed by a special structure, has good contact heat conducting property and one-way heat conducting, the temperature of the outer cooling area is higher than the temperature of the heating area, so the one-way heat conducting rod 10 is connected with the heat absorption suspension 13 and the heat dissipation suspension 14, the formed heat recovery mechanism can effectively improve heat recovery and reduce energy loss.
The interior bottom of furnace body inner bag 6 is provided with conveying mechanism 7, conveying mechanism 7 includes heat-resisting chain belt 701, support guide frame 702 and driving roller axle 703, the steel pipe heavy groove 704 that a plurality of equidistance were arranged is seted up to heat-resisting chain belt 701's lateral surface for steel pipe in the stable transport, support guide frame 702 is suitable for providing the support for heat-resisting chain belt 701, driving roller axle 703 passes through the bearing and is connected with furnace body inner bag 6 rotation, drive heat-resisting chain belt 701 with the slow rotation of 0.2 meters of linear velocity of per minute.
The cover of lagging casing 5 is in the outside of furnace body inner bag 6, protect the structure of furnace body inner bag 6, reduce the outside loss of furnace body inner bag 6 simultaneously, the right-hand member of lagging casing 5 and furnace body inner bag 6 is provided with feeding swash plate 1, make things convenient for the steel pipe to get into the annealing stove, the top fixedly connected with entry baffle 2 of feeding swash plate 1, reduce annealing stove entry bore, the left end of lagging casing 5 and furnace body inner bag 6 is provided with row material swash plate 3, conveniently accomplish annealing treatment's steel pipe discharge annealing stove, arrange the top fixedly connected with exit baffle 4 of material swash plate 3, reduce annealing stove exit bore.
The working principle of the annealing furnace for continuously producing the steel pipes is as follows: the steel pipes are orderly arranged on the feeding inclined plate 1, the steel pipes sequentially enter the annealing furnace under the transmission action of the conveying mechanism 7, the steel pipes entering the annealing furnace firstly enter a temperature rising area of a furnace body liner 6, the heat is increased by the temperature rising heating unit 11, the temperature of the steel pipes is gradually increased in the process of slowly moving backwards, the steel pipes enter a constant temperature area after the highest temperature value, the constant temperature state is maintained under the action of the constant temperature heating unit 16, the steel pipes slowly move in the constant temperature area and enter a temperature reduction area after a sufficient period of time, the heat is provided by the temperature reduction heating unit 12, the temperature of the steel pipes is gradually reduced along with the continuous forward movement of the steel pipes in the high temperature state, the self heat dissipation rate of the steel pipes is accelerated, the heat dissipated by the steel pipes is captured by the heat absorption suspension 13 and is transmitted to the heat dissipation suspension 14 through the one-way heat conducting rod 10, so that the redundant heat in the temperature reduction area can be increased to reduce the energy consumption of the temperature rise heating unit 11, finally, the temperature of the steel pipe is reduced to a proper value, and the steel pipe can be annealed and discharged out of the annealing furnace by the discharging inclined plate 3.
The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.
Claims (5)
1. The utility model provides a steel pipe is annealing stove for continuous production which characterized in that: the furnace body liner comprises a heat-insulating shell and a furnace body liner, wherein the heat-insulating shell is suitable for reducing heat loss of the furnace body liner, a heating-up heating group, a cooling heating group and a constant-temperature heating group are arranged on the front inner wall and the rear inner wall of the furnace body liner, the heating-up heating group is close to the right end of the furnace body liner, the temperatures of the heating-up heating group are sequentially increased from right to left, the cooling heating group is close to the left end of the furnace body liner, the cooling heating group is sequentially decreased from right to left, the constant-temperature heating group is positioned between the heating-up heating group and the cooling heating group, a first partition plate is arranged between the constant-temperature heating group and the heating-up heating group, and a second partition plate is arranged between the constant-temperature heating group and the cooling heating group;
the heat-absorbing suspension is fixedly connected to the inner top surface of the furnace body liner on the right side of the first partition plate, the heat-absorbing suspension is fixedly connected to the inner top surface of the furnace body liner on the left side of the second partition plate, a one-way heat conducting rod is arranged on the upper surface of the furnace body liner and inside the heat-insulating shell, the one-way heat conducting rod is suitable for transmitting heat of the heat-absorbing suspension to the heat-radiating suspension, and a conveying mechanism is arranged at the inner bottom of the furnace body liner.
2. An annealing furnace for continuous production of steel pipes according to claim 1, characterized in that: the first partition plate and the second partition plate are of hollow structures, and the front side surface, the rear side surface and the upper surface of the first partition plate and the second partition plate are fixedly connected with the inner wall of the furnace body liner.
3. An annealing furnace for continuous production of steel pipes according to claim 1, characterized in that: the conveying mechanism comprises a heat-resistant chain belt, a supporting guide frame and a transmission roller shaft, wherein a plurality of steel pipe sinking grooves distributed at equal intervals are formed in the outer side surface of the heat-resistant chain belt, the supporting guide frame is suitable for supporting the heat-resistant chain belt, and the transmission roller shaft is rotatably connected with the inner container of the furnace body through a bearing.
4. An annealing furnace for continuous production of steel pipes according to claim 1, characterized in that: the furnace body inner container is arranged on the inner top surface and located between the first partition plate and the second partition plate, and the auxiliary heating rod is suitable for rapidly increasing the temperature in the annealing furnace.
5. An annealing furnace for continuous production of steel pipes according to claim 1, characterized in that: the furnace body inner bag comprises a furnace body inner bag, a heat preservation shell, a furnace body inner bag, a feeding inclined plate, a discharging inclined plate and an outlet baffle, wherein the heat preservation shell is sleeved outside the furnace body inner bag, the right ends of the heat preservation shell and the furnace body inner bag are provided with the feeding inclined plate, the inlet baffle is fixedly connected to the upper portion of the feeding inclined plate, the left ends of the heat preservation shell and the furnace body inner bag are provided with the discharging inclined plate, and the outlet baffle is fixedly connected to the upper portion of the discharging inclined plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493906.XU CN216378316U (en) | 2021-10-15 | 2021-10-15 | Annealing furnace for continuous production of steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493906.XU CN216378316U (en) | 2021-10-15 | 2021-10-15 | Annealing furnace for continuous production of steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216378316U true CN216378316U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122493906.XU Active CN216378316U (en) | 2021-10-15 | 2021-10-15 | Annealing furnace for continuous production of steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216378316U (en) |
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2021
- 2021-10-15 CN CN202122493906.XU patent/CN216378316U/en active Active
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