CN112683053B - Aluminum bar heating furnace - Google Patents
Aluminum bar heating furnace Download PDFInfo
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- CN112683053B CN112683053B CN202110263954.1A CN202110263954A CN112683053B CN 112683053 B CN112683053 B CN 112683053B CN 202110263954 A CN202110263954 A CN 202110263954A CN 112683053 B CN112683053 B CN 112683053B
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Abstract
The invention relates to the technical field of heating furnaces, and provides an aluminum bar heating furnace which comprises a preheating furnace, a heating furnace, an aluminum bar conveying mechanism, a pipeline, a shape memory alloy spring and a partition plate, wherein the preheating furnace is provided with a preheating aluminum bar outlet, the heating furnace is provided with a heating aluminum bar inlet, the aluminum bar conveying mechanism is arranged between the preheating aluminum bar outlet and the heating aluminum bar inlet and is used for conveying an aluminum bar from the preheating furnace to the heating furnace, a preheating exhaust hole is formed in the side wall of an inner cavity of the heating furnace, one end of the pipeline is communicated with the inner cavity of the heating furnace through the preheating exhaust hole, the other end of the pipeline is communicated with the inner cavity of the preheating furnace, a groove is formed in the side wall of the preheating exhaust hole, one end of the shape memory alloy spring is fixedly connected with the partition plate, the other. The invention can automatically control the opening and closing of the preheating exhaust hole so as to carry out temperature rising and/or heat preservation operation on the heating furnace.
Description
Technical Field
The invention relates to the technical field of heating furnaces, in particular to an aluminum bar heating furnace.
Background
An aluminum bar is one of aluminum products. Before the aluminum bar is extruded into the aluminum profile, the aluminum bar needs to be slowly and uniformly heated by an aluminum bar heating furnace. The existing aluminum bar heating furnace generally comprises a preheating furnace, a heating furnace and a pipeline, wherein one end of the pipeline is communicated with the inner cavity of the heating furnace through an exhaust hole on the side wall of the inner cavity of the heating furnace, and the other end of the pipeline is communicated with the inner cavity of the preheating furnace. Through setting up the pipeline between heating furnace inner chamber and preheating furnace inner chamber, current aluminium bar heating furnace can discharge the high temperature waste heat waste gas of heating furnace in preheating the furnace to carry out slow heat treatment to the aluminium bar in preheating the furnace, improve energy utilization efficiency.
However, the existing aluminum bar heating furnace cannot automatically control the opening and closing of the exhaust holes according to the temperature of the inner cavity of the heating furnace so as to carry out heating and heat preservation operation on the heating furnace, and the structure of the existing aluminum bar heating furnace needs to be improved.
Disclosure of Invention
Based on the above, in order to solve the problem that the existing aluminum bar heating furnace cannot automatically control the opening and closing of the exhaust holes according to the temperature of the inner cavity of the heating furnace so as to carry out heating and heat preservation operation on the heating furnace, the invention provides an aluminum bar heating furnace, and the specific technical scheme is as follows:
an aluminum bar heating furnace comprises a preheating furnace, a heating furnace, an aluminum bar conveying mechanism, a pipeline, a shape memory alloy spring and a partition plate, wherein the preheating furnace is provided with a preheating aluminum bar outlet, the heating furnace is provided with a heating aluminum bar inlet, the aluminum bar conveying mechanism is arranged between the preheating aluminum bar outlet and the heating aluminum bar inlet and is used for conveying an aluminum bar to the heating furnace from the preheating furnace, a preheating exhaust hole is formed in the side wall of an inner cavity of the heating furnace, one end of the pipeline is communicated with the inner cavity of the heating furnace through the preheating exhaust hole, the other end of the pipeline is communicated with the inner cavity of the preheating furnace, a groove is formed in the side wall of the preheating exhaust hole, one end of the shape memory alloy spring is fixedly connected with the partition plate, and the other end of the shape memory alloy spring is fixedly connected with the side wall of the groove far, the partition plate is connected with the groove and the side wall of the preheating exhaust hole in a sliding and sealing mode.
The preheating exhaust hole can be automatically controlled to be opened and closed through the shape memory alloy spring and the partition plate, so that high-temperature waste heat and waste gas of the heating furnace can be better utilized to preheat an aluminum rod in the preheating furnace and heat rise and/or heat preservation operation of the heating furnace can be better realized.
Further, the parent phase temperature of the shape memory alloy spring is higher than the working temperature of the heating furnace.
Further, the shape memory alloy spring has a two-way memory effect.
Further, the shape memory alloy spring has a one-way memory effect.
Further, the partition is made of an insulating ceramic material.
Furthermore, the inner cavity of the heating furnace is provided with a first combustion chamber and a second combustion chamber.
Further, a burner is installed in each of the first combustion chamber and the second combustion chamber.
Further, the burner is a natural gas lance.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a first schematic view of the overall structure of an aluminum bar heating furnace according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the structural relationship among the shape memory alloy spring, the partition plate and the groove of an aluminum rod heating furnace according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the structural relationship among the shape memory alloy spring, the partition plate, the groove, the chute, the high temperature resistant spring and the slide block of the aluminum rod heating furnace according to an embodiment of the present invention.
Description of reference numerals:
1. preheating a furnace; 2. heating furnace; 3. an aluminum bar conveying mechanism; 4. a first combustion chamber; 5. a second combustion chamber; 6. a material rack; 7. a first bar turning mechanism; 8. a second bar turning mechanism; 9. a pipeline; 10. preheating an exhaust hole; 11. a shape memory alloy spring; 12. a partition plate; 13. a groove; 14. a chute; 15. a slider; 16. a high temperature resistant spring; 17. a high melting point alloy; 18. and (4) opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1 and 2, an aluminum bar heating furnace comprises a preheating furnace 1, a heating furnace 2, an aluminum bar conveying mechanism 3, a pipeline 9, a shape memory alloy spring 11 and a partition plate 12, wherein the preheating furnace 1 is provided with a preheated aluminum bar outlet, the heating furnace 2 is provided with a heated aluminum bar inlet, the aluminum bar conveying mechanism 3 is arranged between the preheated aluminum bar outlet and the heated aluminum bar inlet and is used for conveying an aluminum bar to the heating furnace 2 from the preheating furnace 1, a preheating exhaust hole 10 is arranged on the side wall of an inner cavity of the heating furnace 2, one end of the pipeline 9 is communicated with the inner cavity of the heating furnace 2 through the preheating exhaust hole 10, the other end of the pipeline 9 is communicated with the inner cavity of the preheating furnace 1, a groove 13 is arranged on the side wall of the preheating exhaust hole 10, one end of the shape memory alloy spring 11 is fixedly connected with the partition plate 12, and the other end of the shape memory alloy spring 11 is far away from the groove 13 on the Fixedly connected, the partition plate 12 is in sliding sealing connection with the groove 13 and the side wall of the preheating exhaust hole 10, and the size of the partition plate 12 is matched with that of the preheating exhaust hole 10.
Through setting up pipeline 9, can utilize the high temperature waste heat waste gas of heating furnace 2 carries out preheating treatment to the aluminium bar that is arranged in preheater 1, improves the utilization efficiency of the energy, saves manufacturing cost.
The phase transition temperature of the shape memory alloy spring 11 can be selected according to different temperatures of the hearth of the heating furnace 2, and is not described herein again.
When the temperature of the shape memory alloy spring 11 is higher than the temperature of the parent phase, the shape memory alloy spring 11 deforms, the partition plate 12 is driven to move, and the preheating exhaust hole 10 is opened, so that high-temperature gas in the inner cavity of the heating furnace 2 can be conveyed to the preheating furnace 1 through a pipeline 9; when the temperature of the shape memory alloy spring 11 is lower than the temperature of the parent phase, the shape memory alloy spring 11 recovers, the partition plate 12 is driven to move and the preheating exhaust hole 10 is closed, so that the high-temperature gas in the inner cavity of the heating furnace 2 cannot be conveyed to the preheating furnace 1 through the pipeline 9.
The preheating exhaust holes 10 can be automatically controlled to open and close through the shape memory alloy spring 11 and the partition plate 12, so that high-temperature waste heat and exhaust gas of the heating furnace 2 can be better utilized to preheat aluminum rods in the preheating furnace 1 and heat and/or preserve heat of the heating furnace.
In one embodiment, the inner cavity of the heating furnace 2 is provided with a first combustion chamber 4 and a second combustion chamber 5. The aluminium bar heating furnace preheats the aluminium bar through preheating furnace 1 earlier, and the aluminium bar after the rethread includes that heating furnace 2 of first combustion chamber 4 and second combustion chamber 5 heats preheating, can the rapid heating aluminium bar so that extrude the aluminium bar into the profile. Compared with the existing aluminum bar heating furnace with a single furnace and a single combustion chamber, the aluminum bar heating furnace has higher combustion efficiency and heating efficiency because the aluminum bar heating furnace comprises two combustion chambers.
In one embodiment, when the temperature of the shape memory alloy spring 11 is higher than the parent phase temperature, the shape memory alloy spring 11 is in a shortened state and drives the partition plate 12 to move to open the preheating exhaust hole 10. When the temperature of the shape memory alloy spring 11 is less than the parent phase temperature, the shape memory alloy spring 11 is in an extended state and drives the partition plate 12 to move to close the preheating exhaust hole 10.
In one embodiment, the parent phase temperature of the shape memory alloy spring 11 is greater than the operating temperature of the furnace 2. Specifically, the temperature of the parent phase of the shape memory alloy spring 11 is slightly higher than the operating temperature of the heating furnace 2. Therefore, when the temperature of the inner cavity of the heating furnace 2 is higher than the working temperature, the preheating exhaust hole 10 is automatically opened by the aluminum bar heating aluminum, the heating furnace 2 is cooled, and the aluminum bar in the preheating furnace 1 is preheated by the high-temperature gas of the heating furnace 2, so that the utilization efficiency of resources is improved; when the temperature of the inner cavity of the heating furnace 2 is lower than the working temperature, the preheating exhaust holes 10 are automatically closed by the aluminum bar heating aluminum, and the heating and/or heat preservation treatment is carried out on the heating furnace 2, so that the aluminum bar is better heated.
In one embodiment, the preheating furnace 1 is further provided with a preheating aluminum bar inlet, an inclined material rack 6 is fixedly installed in an inner cavity of the preheating furnace 1, the height of one end, away from the aluminum bar conveying mechanism 3, of the material rack 6 is greater than the height of one end, close to the aluminum bar conveying mechanism 3, of the material rack 6, a first aluminum bar turning mechanism 7 for lifting and turning an aluminum bar to the material rack 6 is arranged at the preheating aluminum bar inlet, and a second aluminum bar turning mechanism 8 for turning an aluminum bar to the aluminum bar conveying mechanism 3 is arranged at the preheating aluminum bar outlet.
The first rod turning mechanism 7 can well place the aluminum rods on the material rack 6 for preheating treatment. The second rod turning mechanism 8 can well turn the aluminum rods in the preheating furnace 1 to the aluminum rod conveying mechanism 3, so that the aluminum rod conveying mechanism 3 conveys the aluminum rods subjected to preheating treatment to the heating furnace 2 for heating treatment. The aluminum bar conveying mechanism 3 can be a conveyor belt or a conveying roller. Since the first bar turning mechanism 7, the second bar turning mechanism 8 and the aluminum bar conveying mechanism 3 are conventional technical means in the art, detailed description thereof is omitted in the embodiments.
In one embodiment, the shape memory alloy spring 11 has a two-way memory effect or a one-way memory effect.
In one embodiment, the partition 12 is made of a thermally insulating ceramic material. Thus, the heat insulating performance of the heating furnace 2 can be improved.
In one embodiment, burners are installed in the first combustion chamber 4 and the second combustion chamber 5, and the burners are natural gas spray guns. Since the installation manner of the natural gas spray gun is a conventional technical means in the field, the detailed description is omitted.
In one embodiment, as shown in fig. 3, a sliding groove 14 is provided on a side wall of the groove 13 close to an inner cavity of the heating furnace 2, an opening 18 communicated with the groove 13 is provided on a side wall of the sliding groove 14, the aluminum rod heating furnace further includes a sliding block 15, a high temperature resistant spring 16 and a high melting point alloy 17, a melting point of the high melting point alloy 17 is slightly higher than a parent phase temperature of the shape memory alloy spring 11, one end of the sliding block 15 is fixedly connected with one end of the partition plate 12 close to the shape memory alloy spring 11, and the other end of the sliding block passes through the opening and then extends into the sliding groove 14 and can move back and forth relative to the opening 18; the high-melting-point alloy 17 is fixedly installed in the chute 14, one end of the high-temperature resistant spring 16 is arranged between the high-melting-point alloy 17 and the side wall of the chute 14 close to the preheating exhaust hole 10, the high-melting-point alloy 17 is arranged between the high-temperature resistant spring 16 and the sliding block 15, and when the temperature of the high-melting-point alloy 17 is lower than the melting point, the high-temperature resistant spring 16 is in a compressed state.
When the shape memory alloy spring 11 fails to drive the partition plate 12 to move so as to open the preheating exhaust hole 10 and the temperature of the inner cavity of the heating furnace 2 is continuously raised and is higher than the working temperature of the heating furnace 2, the high-melting-point alloy 17 is melted, so that the high-temperature-resistant spring 16 in a compressed state extends and drives the sliding block 15 to move in the direction away from the preheating exhaust hole 10, the partition plate 12 can be driven to move and open the preheating exhaust hole 10, high-temperature gas in the inner cavity of the heating furnace 2 is pumped to the preheating furnace 1, and the aluminum bar in the preheating furnace 1 is preheated by the high-temperature gas of the heating furnace 2 while the heating furnace 2 is cooled. Therefore, the heating furnace 2 can be protected at high temperature, and the problem that the temperature of the aluminum bar in the heating furnace 2 is too high due to the fact that the partition plate 12 cannot be driven to move to open the preheating exhaust hole 10 to cool the heating furnace 2 because the shape memory alloy spring 11 fails is avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. An aluminum bar heating furnace is characterized by comprising a preheating furnace, a heating furnace, an aluminum bar conveying mechanism, a pipeline, a shape memory alloy spring and a partition plate, wherein the preheating furnace is provided with a preheating aluminum bar outlet, the heating furnace is provided with a heating aluminum bar inlet, the aluminum bar conveying mechanism is arranged between the preheating aluminum bar outlet and the heating aluminum bar inlet and is used for conveying an aluminum bar from the preheating furnace to the heating furnace, a preheating exhaust hole is formed in the side wall of an inner cavity of the heating furnace, one end of the pipeline is communicated with the inner cavity of the heating furnace through the preheating exhaust hole, the other end of the pipeline is communicated with the inner cavity of the preheating furnace, a groove is formed in the side wall of the preheating exhaust hole, one end of the shape memory alloy spring is fixedly connected with the partition plate, and the other end of the shape memory alloy spring is fixedly connected with the side wall of the groove far away, the partition plate is connected with the groove and the side wall of the preheating exhaust hole in a sliding and sealing mode;
the side wall of the groove close to the inner cavity of the heating furnace is provided with a sliding groove, the side wall of the sliding groove is provided with an opening communicated with the groove, the aluminum bar heating furnace further comprises a sliding block, a high-temperature resistant spring and a high-melting-point alloy, the melting point of the high-melting-point alloy is greater than the parent phase temperature of the shape memory alloy spring, one end of the sliding block is fixedly connected with one end of the partition plate close to the shape memory alloy spring, and the other end of the sliding block penetrates through the opening and then extends into the sliding groove and can move back and forth relative to the opening;
the high-melting-point alloy is fixedly arranged in the sliding groove, the high-temperature resistant spring is arranged between the high-melting-point alloy and the side wall of the sliding groove close to the preheating exhaust hole, the high-melting-point alloy is positioned between the high-temperature resistant spring and the sliding block, and when the temperature of the high-melting-point alloy is lower than the melting point, the high-temperature resistant spring is in a compressed state.
2. The aluminum bar heating furnace of claim 1, wherein the parent phase temperature of said shape memory alloy spring is greater than the operating temperature of said furnace.
3. An aluminum rod heating furnace according to claim 2, wherein said shape memory alloy spring has a two-way memory effect.
4. An aluminum rod heating furnace according to claim 2, wherein said shape memory alloy spring has a one-way memory effect.
5. An aluminum rod heating furnace according to claim 4, wherein said partition is made of a heat insulating ceramic material.
6. The aluminum bar heating furnace of claim 5, wherein the inner cavity of said furnace is provided with a first combustion chamber and a second combustion chamber.
7. An aluminum rod heating furnace according to claim 6, wherein burners are installed in both said first combustion chamber and said second combustion chamber.
8. The aluminum bar heating furnace of claim 7, wherein said burner is a natural gas lance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110263954.1A CN112683053B (en) | 2021-03-11 | 2021-03-11 | Aluminum bar heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110263954.1A CN112683053B (en) | 2021-03-11 | 2021-03-11 | Aluminum bar heating furnace |
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| CN112683053A CN112683053A (en) | 2021-04-20 |
| CN112683053B true CN112683053B (en) | 2021-06-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201062922Y (en) * | 2007-07-18 | 2008-05-21 | 曾宪泉 | Preheating device of aluminum bar heating furnace |
| CN105180652A (en) * | 2015-09-22 | 2015-12-23 | 江阴江顺铝型材成套设备制造有限公司 | Aluminum bar heating furnace |
| CN208333104U (en) * | 2018-05-31 | 2019-01-04 | 河南大润新材料有限公司 | A kind of aluminum-bar heating furnace |
| CN208505036U (en) * | 2018-04-21 | 2019-02-15 | 滨州裕阳铝业有限公司 | A kind of aluminium bar preheating device for aluminum alloy doors and windows processing |
| CN112414121A (en) * | 2020-12-10 | 2021-02-26 | 广东朗盾科技有限公司 | Energy-conserving aluminium bar heating furnace of gas |
-
2021
- 2021-03-11 CN CN202110263954.1A patent/CN112683053B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201062922Y (en) * | 2007-07-18 | 2008-05-21 | 曾宪泉 | Preheating device of aluminum bar heating furnace |
| CN105180652A (en) * | 2015-09-22 | 2015-12-23 | 江阴江顺铝型材成套设备制造有限公司 | Aluminum bar heating furnace |
| CN208505036U (en) * | 2018-04-21 | 2019-02-15 | 滨州裕阳铝业有限公司 | A kind of aluminium bar preheating device for aluminum alloy doors and windows processing |
| CN208333104U (en) * | 2018-05-31 | 2019-01-04 | 河南大润新材料有限公司 | A kind of aluminum-bar heating furnace |
| CN112414121A (en) * | 2020-12-10 | 2021-02-26 | 广东朗盾科技有限公司 | Energy-conserving aluminium bar heating furnace of gas |
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