Double-push-plate nitrogen protection kiln with cooling structure

Abstract

The utility model discloses a double-push-plate nitrogen protection kiln with a cooling structure, which comprises a kiln body, a front sealing plate arranged on the front side wall of the kiln body, a rear sealing plate arranged on the rear side wall of the kiln body, a propeller arranged in front of the kiln body, a propelling rod fixedly connected to the rear side wall of the propeller, and a cooling device arranged on the rear side wall of the propelling rod, and the rear side wall of the pushing rod is fixedly connected with a pushing plate, the interior of the kiln body is rotationally connected with a conveying roller set, and the top of the kiln body is provided with a first separation assembly and a second separation assembly. By means of the structure, after the alloy is sintered, nitrogen for protection is cooled and then injected into the kiln body, the alloy is protected again while the alloy is cooled, the alloy is protected by the nitrogen in the whole process, the alloy cooling efficiency and cooling quality are improved, and the service life of the alloy is prolonged. And meanwhile, the cooled nitrogen can be recycled, so that the utilization rate of the nitrogen is increased.

Description

Technical Field

[0001] The utility model relates to the field of alloy sintering equipment, in particular to a double-push plate nitrogen protection kiln with a cooling structure. Background Art

[0002] During the firing process of special alloys, auxiliary inert gas is needed for protection to avoid oxidation and improve the quality of special alloy firing. In the existing technology, nitrogen is generally used as a protective gas, but in the cooling process of special alloys, natural cooling or air cooling is generally used. This cooling method has a long cooling time and poor cooling effect, which can easily lead to a large temperature difference between the inside and outside of the alloy and reduce the quality of the alloy. In addition, during the cooling process, the contact between the external air and the alloy surface will also produce an oxidation reaction, reducing the quality of the alloy. Utility Model Content

[0003] The utility model aims to provide a double-push plate nitrogen protection kiln with a cooling structure. After the alloy is sintered, the nitrogen used for protection is cooled and then injected into the kiln body. The alloy is cooled and protected again at the same time, so that the alloy is under nitrogen protection throughout the whole process, thereby improving the cooling efficiency and cooling quality of the alloy. At the same time, the cooled nitrogen can be recycled and reused, thereby improving the utilization rate of the nitrogen.

[0004] In order to achieve the above-mentioned purpose, a double-push plate nitrogen protection kiln with a cooling structure is provided, comprising: a kiln body, a front sealing plate is arranged on the front side wall of the kiln body, a rear sealing plate is arranged on the rear side wall of the kiln body, a pusher is arranged in front of the kiln body, a push rod is fixedly connected to the rear side wall of the pusher, a push plate is fixedly connected to the rear side wall of the push rod, a conveying roller group is rotatably connected inside the kiln body, a first partition assembly and a second partition assembly are arranged on the top of the kiln body, the first partition assembly comprises a top frame, an electric rod and a partition plate, the top frame is in a "door" shape, and the bottom of the top frame is connected to the kiln body. Fixedly connected, an electric rod is fixedly connected to the upper bottom surface of the top frame, a partition plate is fixedly connected to the bottom of the electric rod, the bottom of the partition plate passes through the kiln body, a first air inlet pipe, a first air outlet pipe, a second air inlet pipe, a second air outlet pipe, a third air inlet pipe and a third air outlet pipe are fixedly connected to the left side wall of the kiln body, the first air inlet pipe, the first air outlet pipe, the second air inlet pipe, the second air outlet pipe, the third air inlet pipe and the third air outlet pipe are arranged in sequence from front to back, a first cooling box is fixedly connected between the first air outlet pipe and the second air inlet pipe, and a second cooling box is fixedly connected between the second air outlet pipe and the third air inlet pipe.

[0005] According to the double push plate nitrogen protection kiln with a cooling structure, the structure of the second partition assembly is completely consistent with the first partition assembly, and the first partition assembly and the second partition assembly divide the kiln body into a sintering zone, a first cooling zone and a second cooling zone.

[0006] According to the double push plate nitrogen protection kiln with a cooling structure, the first air inlet pipe and the first air outlet pipe are located in the sintering zone, the second air inlet pipe and the second air outlet pipe are located in the first cooling zone, and the third air inlet pipe and the third air outlet pipe are located in the third cooling zone.

[0007] According to the double-push-plate nitrogen protection kiln with a cooling structure, heating rods are fixedly connected to the left and right side walls inside the kiln body, and the heating rods are located in the sintering area.

[0008] According to the double-push-plate nitrogen protection kiln with a cooling structure, the first air inlet pipe and the third air outlet pipe are both connected to an external nitrogen supply mechanism.

[0009] According to the double-push-plate nitrogen protection kiln with a cooling structure, the number of the push rods and push plates is two and they are symmetrically distributed behind the pusher. The push plates are located inside the kiln body and above the conveying roller group.

[0010] The above scheme has the beneficial effect: by arranging the kiln body, the front sealing plate, the rear sealing plate, the propeller, the propulsion rod, the propulsion plate, the conveying roller group, the first partition assembly, the second partition assembly, the first air inlet pipe, the first air outlet pipe, the second air inlet pipe, the second air outlet pipe, the third air inlet pipe, the third air outlet pipe, the first cooling box and the second cooling box, after the alloy is sintered, the nitrogen used for protection is cooled and then injected into the kiln body, and the alloy is cooled and protected again at the same time, so that the alloy is under nitrogen protection throughout the whole process, thereby improving the cooling efficiency and cooling quality of the alloy, and at the same time, the cooled nitrogen can be recycled and reused, thereby improving the utilization rate of the nitrogen.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is a front view of a double push plate nitrogen protection kiln with a cooling structure according to the utility model;

[0014] Figure 2 This is a left view of a double push plate nitrogen protection kiln with a cooling structure according to the utility model;

[0015] Figure 3 It is a cross-sectional view of a double-push plate nitrogen protection kiln with a cooling structure according to the utility model;

[0016] Figure 4This is a structural diagram of the first partition component of a double push plate nitrogen protection kiln with a cooling structure according to the utility model.

[0017] Legend:

[0018] 1. Kiln body; 2. Front sealing plate; 3. Rear sealing plate; 4. Pusher; 5. Push rod; 6. Push plate; 7. Conveying roller group; 8. First partition assembly; 9. Second partition assembly; 10. First air inlet pipe; 11. First air outlet pipe; 12. Second air inlet pipe; 13. Second air outlet pipe; 14. Third air inlet pipe; 15. Third air outlet pipe; 16. First cooling box; 17. Second cooling box; 801. Top frame; 802. Electric rod; 803. Partition plate. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] Reference Figure 1-4The utility model embodiment is a double push plate nitrogen protection kiln with a cooling structure, which includes: a kiln body 1, a front sealing plate 2 is arranged on the front side wall of the kiln body 1, a rear sealing plate 3 is arranged on the rear side wall of the kiln body 1, heating rods are fixedly connected to the left and right side walls inside the kiln body 1, and the heating rods are located in the sintering area, a pusher 4 is arranged in front of the kiln body 1, a push rod 5 is fixedly connected to the rear side wall of the pusher 4, and a push plate 6 is fixedly connected to the rear side wall of the push rod 5, and the number of the push rod 5 and the push plate 6 are both arranged in two, and The pusher plate 6 is symmetrically distributed behind the pusher 4. The pusher plate 6 is located inside the kiln body 1 and above the conveyor roller group 7, which is used to push the alloy for firing and cooling. The conveyor roller group 7 is rotatably connected inside the kiln body 1 to place the alloy to be fired, and under the action of the pusher plate 6, the alloy moves on the conveyor roller group 7. The top of the kiln body 1 is provided with a first partition component 8 and a second partition component 9, which are used to separate the kiln body 1 for facilitating firing and cooling. The first partition component 8 includes a top frame 801, an electric rod 802 and a partition component 9. The partition plate 803 is a top frame 801 in a "door" shape. The bottom of the top frame 801 is fixedly connected to the kiln body 1. The upper bottom surface of the top frame 801 is fixedly connected to an electric rod 802. The bottom of the electric rod 802 is fixedly connected to a partition plate 803. The bottom of the partition plate 803 penetrates the kiln body 1. The left side wall of the kiln body 1 is fixedly connected to a first air inlet pipe 10, a first air outlet pipe 11, a second air inlet pipe 12, a second air outlet pipe 13, a third air inlet pipe 14 and a third air outlet pipe 15. The first air inlet pipe 10, the first air outlet pipe 11, the second air inlet pipe 13, the third air inlet pipe 14 and the third air outlet pipe 15 are fixedly connected. The air inlet pipe 12, the second air outlet pipe 13, the third air inlet pipe 14 and the third air outlet pipe 15 are arranged in sequence from front to back. The first air inlet pipe 10 and the third air outlet pipe 15 are both connected to an external nitrogen supply mechanism. After the nitrogen is filled into the kiln body 1, the alloy is sintered and cooled. A first cooling box 16 is fixedly connected between the first air outlet pipe 11 and the second air inlet pipe 12 for cooling the nitrogen passing therethrough. A second cooling box 17 is fixedly connected between the second air outlet pipe 13 and the third air inlet pipe 14 for cooling the nitrogen passing therethrough again.

[0021] The structure of the second partition component 9 is exactly the same as that of the first partition component 8. The first partition component 8 and the second partition component 9 divide the kiln body 1 into a sintering zone, a first cooling zone and a second cooling zone. The first air inlet pipe 10 and the first air outlet pipe 11 are located in the sintering zone, the second air inlet pipe 12 and the second air outlet pipe 13 are located in the first cooling zone, and the third air inlet pipe 14 and the third air outlet pipe 15 are located in the third cooling zone.

[0022] Working principle: open the front sealing plate 2, place the alloy to be fired on the conveying roller group 7, then close the front sealing plate 2, start the pusher 4, push the push rod 5 and the push plate 6 to move the alloy on the conveying roller group 7, start the heating rod and fill nitrogen into the kiln body 1 from the first air inlet pipe 10 to fire the alloy. When the firing is completed, start the electric rod 802, lift the partition plate 803, and let the alloy enter the first cooling zone. The high-temperature nitrogen in the kiln body 1 enters the first cooling box 16 from the first air outlet pipe 11 and is injected into the kiln body 1 again from the second air inlet pipe 12, thereby cooling the inside of the kiln body 1 and the alloy at the same time. After a period of time, open the second partition assembly 9 again, and the nitrogen in the kiln body 1 further cools the alloy under the action of the first cooling box 16 and the second cooling box 17. After completion, the nitrogen is withdrawn and the rear sealing plate 3 is opened to take out the alloy.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A double push plate nitrogen protection kiln with a cooling structure, comprising: A kiln body (1), characterized in that a front sealing plate (2) is arranged on the front side wall of the kiln body (1), a rear sealing plate (3) is arranged on the rear side wall of the kiln body (1), a propeller (4) is arranged in front of the kiln body (1), a propeller rod (5) is fixedly connected to the rear side wall of the propeller (4), a propeller plate (6) is fixedly connected to the rear side wall of the propeller rod (5), a conveying roller group (7) is rotatably connected inside the kiln body (1), a first partition assembly (8) and a second partition assembly (9) are arranged on the top of the kiln body (1), the first partition assembly (8) comprises a top frame (801), an electric rod (802) and a partition plate (803), the top frame (801) is in a "door" shape, the bottom of the top frame (801) is fixedly connected to the kiln body (1), and the upper bottom surface of the top frame (801) is fixedly connected to the electric rod (802). A movable rod (802), the bottom of the electric rod (802) is fixedly connected to a partition plate (803), the bottom of the partition plate (803) passes through the kiln body (1), the left side wall of the kiln body (1) is fixedly connected to a first air inlet pipe (10), a first air outlet pipe (11), a second air inlet pipe (12), a second air outlet pipe (13), a third air inlet pipe (14) and a third air outlet pipe (15), the first air inlet pipe (10), the first air outlet pipe (11), the second air inlet pipe (12), the second air outlet pipe (13), the third air inlet pipe (14) and the third air outlet pipe (15) are arranged in sequence from front to back, a first cooling box (16) is fixedly connected between the first air outlet pipe (11) and the second air inlet pipe (12), and a second cooling box (17) is fixedly connected between the second air outlet pipe (13) and the third air inlet pipe (14).

2. The double push plate nitrogen protection kiln with cooling structure according to claim 1, characterized in that: The structure of the second partition component (9) is completely consistent with that of the first partition component (8), and the first partition component (8) and the second partition component (9) divide the kiln body (1) into a sintering zone, a first cooling zone, and a second cooling zone.

3. The double push plate nitrogen protection kiln with cooling structure according to claim 2, characterized in that: The first air inlet pipe (10) and the first air outlet pipe (11) are located in the sintering zone, the second air inlet pipe (12) and the second air outlet pipe (13) are located in the first cooling zone, and the third air inlet pipe (14) and the third air outlet pipe (15) are located in the third cooling zone.

4. The double push plate nitrogen protection kiln with cooling structure according to claim 2, characterized in that: Heating rods are fixedly connected to the left and right side walls inside the kiln body (1), and the heating rods are located in the sintering area.

5. The double push plate nitrogen protection kiln with cooling structure according to claim 1, characterized in that: The first air inlet pipe (10) and the third air outlet pipe (15) are both connected to an external nitrogen supply mechanism.

6. The double push plate nitrogen protection kiln with cooling structure according to claim 1, characterized in that: The number of the push rods (5) and the push plate (6) is two and they are symmetrically distributed behind the pusher (4). The push plate (6) is located inside the kiln body (1) and above the conveying roller group (7).

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