Double-layer air-cooled vacuum furnace for cold-rolled steel sheets

Abstract

The utility model relates to the technical field of vacuum furnaces, in particular to a cold-roll steel sheet double-layer air cooling vacuum furnace which comprises a box body, a box door is rotatably connected to the surface of the box body, a heating bin is arranged in the box body, a heating pipe is fixedly installed in the heating bin, and a graphite box is fixedly installed in the box body. By arranging the box body, the box door, the heating bin, the heating pipe, the graphite box, the first heat insulation plate, the first ventilation hole, the motor, the lead screw, the second heat insulation plate, the second ventilation hole, the fan and the ventilation plate, when cooling is needed, the motor drives the second heat insulation plate to slide, and the overlapping area of the two heat insulation plates can be changed; when the first vent hole and the second vent hole are overlapped, the cold-roll steel plate in the box body can be cooled through the fan, so that the overall heat insulation and heat dissipation performance is flexibly adjusted, the production cycle is shortened, and meanwhile the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum furnaces, in particular to a double-layer air-cooled vacuum furnace for cold-rolled steel plates. Background Art

[0002] The cold-rolled steel plate vacuum furnace is a device specially used for heat treatment of cold-rolled steel plates. It works in a vacuum environment and can effectively prevent the steel plates from reacting with gases such as oxygen during the heating process, thereby reducing oxidation, decarburization and other phenomena, and ensuring the surface quality and performance of the steel plates. The common cold-rolled steel plate vacuum furnaces on the market have certain limitations in the cooling link. Traditional vacuum furnace cooling methods mostly use natural cooling, which has a slow natural cooling speed, greatly extending the production cycle and reducing production efficiency. This not only increases production costs, but also limits the increase in production capacity, and needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a double-layer air-cooled vacuum furnace for cold-rolled steel plates, comprising a box body, a box door is rotatably connected to the surface of the box body, a heating chamber is arranged inside the box body, a heating pipe is fixedly installed inside the heating chamber, a graphite box is fixedly installed inside the box body, a first heat insulation board is fixedly installed on the top of the box body, a first air vent is opened on the surface of the first heat insulation board, a motor is fixedly installed on the surface of the box body, a screw rod is fixedly installed on the output end of the motor, a second heat insulation board is threadedly connected to the surface of the screw rod, a second air vent is opened on the surface of the second heat insulation board, a fan is fixedly installed on the top of the second heat insulation board, and a breathable board is fixedly installed on the surface of the fan.

[0005] Preferably, the box door is rotatably connected to the box body, and a handle is fixedly installed on the surface of the box door. Here, the rotatable connection makes the opening and closing of the box door smooth and natural, and the operator can operate it easily, while the handle also saves time and physical effort in opening and closing the door.

[0006] Preferably, the bottom end of the box is fixedly mounted with support feet, which provide a stable support base for the box to prevent the box from shaking or tilting when placed, especially during the operation of the equipment, to ensure its stable operation.

[0007] Preferably, the second heat insulation board slides on the surface of the first heat insulation board. Here, the second heat insulation board is driven to slide by the motor, so that the overlapping area of ​​the two heat insulation boards can be changed. When the first vent hole overlaps with the second vent hole, the cold-rolled steel plate inside the box can be cooled by the fan, so as to flexibly adjust the overall heat insulation and heat dissipation performance.

[0008] Preferably, the number of the fans is two groups, and the two groups of fans are symmetrically distributed on the top of the box. Here, the two groups of fans work simultaneously, which can significantly increase the air circulation volume and flow rate, thereby more effectively taking away the heat generated in the box and improving the heat dissipation efficiency. The symmetrical distribution design enables the fans to evenly act on various areas on the top of the box when working, avoiding local overheating or uneven heat dissipation, and ensuring a more uniform temperature distribution in the box.

[0009] Preferably, a dustproof plate is provided on the surface of the air-permeable plate, a fixing plate is fixedly mounted on the surface of the dustproof plate, and bolts are threadedly connected between the fixing plate and the box body. Here, the dustproof plate provided on the surface of the air-permeable plate can effectively prevent dust, impurities, etc. from entering the box body through the air-permeable plate, protecting the equipment or items in the box body from pollution and damage. When the dustproof plate needs to be cleaned, replaced or repaired, it can be disassembled by simply unscrewing the bolts, which is simple and convenient to operate, saving maintenance time and cost.

[0010] Preferably, a card slot is provided on the surface of the box, and a card block is fixedly installed on the surface of the dustproof plate, and the card block is adapted to the card slot. Here, the cooperation between the card block and the card slot enables the dustproof plate to be quickly and accurately located during installation, which facilitates the operator to quickly install the dustproof plate on the box, thereby improving installation efficiency.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by arranging a box body, a box door, a heating chamber, a heating tube, a graphite box, a first heat insulation board, a first vent, a motor, a screw rod, a second heat insulation board, a second vent, a fan, and a breathable plate structure, when cooling is needed, the second heat insulation board is driven to slide by the motor, and the overlapping area of ​​the two heat insulation boards can be changed. When the first vent overlaps with the second vent, the cold-rolled steel plate inside the box can be cooled by the fan, so as to flexibly adjust the overall heat insulation and heat dissipation performance, shorten the production cycle, and improve the production efficiency.

[0013] 2. In the utility model, by arranging dustproof plates, fixing plates, bolts, card slots, and card block structures, the dustproof plates arranged on the surface of the air permeable plates can effectively prevent dust, impurities, etc. from entering the interior of the box through the air permeable plates, and protect the equipment or items in the box from pollution and damage. When the dustproof plates need to be cleaned, replaced or repaired, they can be removed by simply unscrewing the bolts. The operation is simple and convenient, saving maintenance time and cost. The cooperation of the card block and the card slot enables the dustproof plates to be quickly and accurately located during installation, which is convenient for the operator to quickly install the dustproof plates on the box, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a double-layer air-cooled vacuum furnace for cold-rolled steel plates is provided for the utility model;

[0015] Figure 2 A cross-sectional view of a double-layer air-cooled vacuum furnace for cold-rolled steel plates is provided for the utility model;

[0016] Figure 3 The utility model provides an overall schematic diagram of a double-layer air-cooled vacuum furnace for cold-rolled steel plates;

[0017] Figure 4 A schematic diagram of a second heat insulation board of a double-layer air-cooled vacuum furnace for cold-rolled steel plates proposed in the utility model;

[0018] Figure 5 The utility model provides a schematic diagram of a dustproof plate for a double-layer air-cooled vacuum furnace for cold-rolled steel plates.

[0019] Legend:

[0020] 1. Box body; 2. Box door; 3. Heating chamber; 4. Heating tube; 5. Graphite box; 6. First heat insulation board; 7. First vent hole; 8. Motor; 9. Screw; 10. Second heat insulation board; 11. Second vent hole; 12. Fan; 13. Breathable plate; 14. Handle; 15. Support foot; 16. Dustproof plate; 17. Fixing plate; 18. Bolt; 19. Slot; 20. Block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0023] See also Figure 1-5The utility model provides a technical solution: a double-layer air-cooled vacuum furnace for cold-rolled steel plates, comprising a box body 1, a box door 2 is rotatably connected to the surface of the box body 1, a heating chamber 3 is arranged inside the box body 1, a heating pipe 4 is fixedly installed inside the heating chamber 3, a graphite box 5 is fixedly installed inside the box body 1, a first heat insulation board 6 is fixedly installed on the top of the box body 1, a first ventilation hole 7 is provided on the surface of the first heat insulation board 6, a motor 8 is fixedly installed on the surface of the box body 1, a screw rod 9 is fixedly installed on the output end of the motor 8, a second heat insulation board 10 is threadedly connected to the surface of the screw rod 9, a second ventilation hole 11 is provided on the surface of the second heat insulation board 10, a fan 12 is fixedly installed on the top of the second heat insulation board 10, a ventilation plate 13 is fixedly installed on the surface of the fan 12, the box door 2 is rotatably connected to the box body 1, a handle 14 is fixedly installed on the surface of the box door 2, the rotating connection mode makes the opening and closing actions of the box door 2 smooth and natural, the operator can easily operate, and the handle 14 also saves time and physical strength for opening and closing the door, the bottom of the box body 1 A support foot 15 is fixedly installed at the end, and the support foot 15 provides a stable support foundation for the box body 1 to prevent the box body 1 from shaking or tilting when placed, especially during the operation of the equipment, to ensure its stable operation. The second insulation board 10 slides on the surface of the first insulation board 6. The second insulation board 10 is driven to slide by the motor 8, and the overlapping area of ​​the two insulation boards can be changed. When the first vent hole 7 overlaps with the second vent hole 11, the cold-rolled steel plate inside the box body 1 can be cooled by the fan 12, so as to flexibly adjust the overall thermal insulation and heat dissipation performance. The number of fans 12 is two groups, and the two groups of fans 12 are symmetrically distributed on the top of the box body 1. The two groups of fans 12 work at the same time, which can significantly increase the air circulation and flow rate, so as to more effectively take away the heat generated in the box body 1 and improve the heat dissipation efficiency. The symmetrical distribution design enables the fan 12 to evenly act on various areas on the top of the box body 1 when working, avoiding local overheating or uneven heat dissipation, and ensuring that the temperature distribution in the box body 1 is more uniform. Example

[0024] See also Figure 5A dustproof plate 16 is provided on the surface of the air-permeable plate 13, and a fixing plate 17 is fixedly installed on the surface of the dustproof plate 16. A bolt 18 is threadedly connected between the fixing plate 17 and the box body 1. The dustproof plate 16 provided on the surface of the air-permeable plate 13 can effectively prevent dust, impurities, etc. from entering the interior of the box body 1 through the air-permeable plate 13, and protect the equipment or items in the box body 1 from pollution and damage. When the dustproof plate 16 needs to be cleaned, replaced or repaired, it can be removed by unscrewing the bolt 18. The operation is simple and convenient, saving maintenance time and cost. A card slot 19 is provided on the surface of the box body 1, and a card block 20 is fixedly installed on the surface of the dustproof plate 16, and the card block 20 is adapted to the card slot 19. The cooperation of the card block 20 and the card slot 19 enables the dustproof plate 16 to find the position quickly and accurately during installation, which is convenient for the operator to quickly install the dustproof plate 16 on the box body 1, thereby improving the installation efficiency.

[0025] Working principle: When working, the cold-rolled steel plate to be treated is placed in the graphite box 5 in the box 1. The heating tube 4 works in the heating chamber 3 to provide heat for the furnace. The first heat insulation board 6 and the second heat insulation board 10 play a role of heat insulation. The motor 8 drives the screw rod 9 to make the second heat insulation board 10 slide on the surface of the first heat insulation board 6, changing the overlap degree of the first vent hole 7 and the second vent hole 11, so as to adjust the heat dissipation degree in the furnace. The two sets of fans 12 symmetrically distributed on the top of the box 1 are started, and the air is exhausted or blown through the air permeable plate 13 to realize the air cooling cycle in the furnace. The dustproof plate 16 cooperates with the card slot 19 on the surface of the box 1 through the card block 20, and is fixed by the fixing plate 17 and the bolt 18 to prevent dust from entering. The box door 2 is convenient for opening and closing by rotating the connection, and the handle 14 is easy to operate. The support foot 15 at the bottom of the box 1 provides stable support. Through the coordinated work of the above components, the heat treatment of the cold-rolled steel plate in a vacuum environment is realized, and the temperature is controlled by air cooling and heat insulation to achieve an ideal treatment effect.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A double-layer air-cooled vacuum furnace for cold-rolled steel plates, comprising a box (1), characterized in that: The surface of the box body (1) is rotatably connected to a box door (2), a heating chamber (3) is arranged inside the box body (1), a heating tube (4) is fixedly installed inside the heating chamber (3), a graphite box (5) is fixedly installed inside the box body (1), a first heat insulation board (6) is fixedly installed on the top of the box body (1), a first ventilation hole (7) is provided on the surface of the first heat insulation board (6), a motor (8) is fixedly installed on the surface of the box body (1), a screw rod (9) is fixedly installed on the output end of the motor (8), a second heat insulation board (10) is threadedly connected to the surface of the screw rod (9), a second ventilation hole (11) is provided on the surface of the second heat insulation board (10), a fan (12) is fixedly installed on the top of the second heat insulation board (10), and a ventilation board (13) is fixedly installed on the surface of the fan (12).

2. The double-layer air-cooled vacuum furnace for cold-rolled steel plates according to claim 1, characterized in that: The box door (2) is rotatably connected to the box body (1), and a handle (14) is fixedly mounted on the surface of the box door (2).

3. The double-layer air-cooled vacuum furnace for cold-rolled steel plates according to claim 1, characterized in that: A supporting foot (15) is fixedly mounted on the bottom end of the box body (1).

4. The double-layer air-cooled vacuum furnace for cold-rolled steel plates according to claim 1, characterized in that: The second heat insulation board (10) slides on the surface of the first heat insulation board (6).

5. The double-layer air-cooled vacuum furnace for cold-rolled steel plates according to claim 1, characterized in that: The number of the fans (12) is two groups, and the two groups of fans (12) are symmetrically distributed on the top of the box body (1).

6. The double-layer air-cooled vacuum furnace for cold-rolled steel plates according to claim 1, characterized in that: A dustproof plate (16) is provided on the surface of the air-permeable plate (13), a fixing plate (17) is fixedly mounted on the surface of the dustproof plate (16), and bolts (18) are threadedly connected between the fixing plate (17) and the box body (1).

7. The double-layer air-cooled vacuum furnace for cold-rolled steel plates according to claim 6, characterized in that: A card slot (19) is provided on the surface of the box body (1), and a card block (20) is fixedly mounted on the surface of the dustproof plate (16), wherein the card block (20) is adapted to fit the card slot (19).

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