Continuous heat treatment device for container corner fittings

Abstract

The utility model provides a container corner fitting continuous heat treatment device which comprises a cuboid-shaped shell, a heat treatment chamber and a smoke chamber are arranged in the shell, a conveying belt is horizontally erected in the heat treatment chamber, a heat insulation tool is placed on the conveying belt, a gas main pipe is arranged in the smoke chamber, and the gas main pipe is communicated with the heat treatment chamber. The heat exchange gas pipes are fixedly connected to the gas main pipe at equal intervals, the heat exchange gas pipes are in an S shape, the other ends of the heat exchange gas pipes are fixedly connected with gas branch pipes, the gas branch pipes are located in the heat treatment chamber and located over the conveying belt, and a plurality of burners are fixedly connected to the gas branch pipes. According to the invention, the flue gas chamber, the heat exchange gas pipe and other structures are arranged, so that heat in flue gas is recovered, the energy consumption is reduced, and meanwhile, the heat insulation tool is used, so that the effect of protecting the conveying belt is achieved, and the service life of the conveying belt is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of heat treatment technology, and in particular to a continuous heat treatment device for container corner fittings. Background Art

[0002] Corner fittings are widely used in warehouse racks, shelves, tool racks, workbenches, simple fences, display sheds in factories and businesses, as well as air-conditioning racks, beds, decorations, etc. In the container production process, it is necessary to weld corner fittings at the top corners of the container.

[0003] Corner fittings are used to support or secure containers. Therefore, they have high requirements for structural strength and wear resistance, and are typically heat-treated. Existing heating systems for corner fittings typically place the entire batch of corner fittings in a furnace, which is relatively inefficient. Using electric heating methods is also costly. Summary of the Invention

[0004] To address the aforementioned issues, the present invention discloses a continuous heat treatment device for container corner fittings. The device comprises a rectangular outer shell, within which are disposed a heat treatment chamber and a fume chamber. A horizontal conveyor belt is installed within the heat treatment chamber, on which a thermal insulation tooling is placed. During operation, the device pre-places the corner fittings on the thermal insulation tooling and then transports them along the conveyor belt into the heat treatment chamber for treatment. The generated fumes enter the fume chamber.

[0005] The flue gas chamber is equipped with a main gas pipe, which is fixedly connected to heat exchange pipes at equal intervals in an S-shaped arrangement. The other end of the heat exchange pipe is fixedly connected to a gas branch pipe, which is located inside the heat treatment chamber and directly above the conveyor belt. Several burners are fixedly connected to each branch pipe. The corner pieces enter the heat treatment chamber along the conveyor belt, where the burners emit flames to heat the corner pieces, performing the heat treatment. During this process, the flue gas generated enters the flue gas chamber and is heated by the heat exchange pipes, thereby improving heat utilization efficiency and reducing energy consumption.

[0006] Preferably, the thermal insulation tooling includes a main body having a U-shaped cross-sectional profile, and a transfer groove is provided on both sides of the main body, so as to facilitate the use of a related manipulator to clamp both sides of the thermal insulation tooling to achieve the transfer of the thermal insulation tooling.

[0007] Preferably, a mating strip is fixedly connected to one side of the lower end of the main body, and a mating groove is formed on the other side of the lower end of the main body, and the mating strip and the mating groove cooperate with each other. That is, adjacent thermal insulation fixtures are connected by the mating strip and the mating groove, and the thermal insulation fixtures shield the conveyor belt, thereby increasing the service life of the conveyor belt.

[0008] Preferably, the inner bottom wall of the main body is evenly distributed with protruding columns. The corner pieces are placed inside the main body and supported by the protruding columns, so that there is a gap between the contact surface of the corner pieces and the main body, which facilitates the passage of hot air and uniformly heats the corner pieces in all directions.

[0009] Preferably, the heat treatment chamber and the smoke chamber are connected to each other, and the waste gas generated by combustion enters the smoke chamber.

[0010] Preferably, a smoke exhaust pipe is fixedly connected to the upper end of the housing. An air supply pipe is disposed within the exhaust pipe, the lower end of which is connected to the main gas pipe. Several heat conducting fins are fixedly connected at equal angles to the sidewalls of the pipe. Exhaust gases generated by combustion are ultimately discharged through the exhaust pipe. During this process, the heat conducting fins heat the gas within the pipe, thereby improving heat utilization efficiency.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. The interior of the shell is divided into a heat treatment chamber and a flue gas chamber, and is equipped with heat exchange air pipes and heat conducting plates to recover the hot gas in the flue gas after combustion, thereby reducing the energy consumption of the device. At the same time, the gas heating method is adopted, and its cost is relatively low.

[0013] 2. It is equipped with a thermal insulation tooling, which can facilitate the transfer of the corner pieces placed on it. At the same time, the thermal insulation tooling plays a role in shielding and protecting the conveyor belt, thereby helping to increase the service life of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 It is a perspective schematic diagram of the present invention;

[0016] Figure 3 It is a three-dimensional schematic diagram of the thermal insulation tooling of the present invention;

[0017] Figure 4 It is a schematic diagram of the pipeline structure at one end of the gas main pipe of the present invention.

[0018] List of reference numerals:

[0019] 1. Outer shell; 2. Exhaust pipe; 3. Gas supply pipe; 4. Heat conducting plate; 5. Insulation tooling; 6. Conveyor belt; 7. Heat treatment chamber; 8. Smoke chamber; 9. Gas branch pipe; 10. Burner nozzle; 11. Gas main pipe; 12. Heat exchange pipe;

[0020] 51. Matching strip; 52. Carrying slot; 53. Matching slot; 54. Main body; 55. Boss. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0022] like Figures 1 to 4 As shown, a continuous heat treatment device for container corner fittings includes a rectangular shell 1, with openings provided at both ends of the shell 1 for feeding in and out of the corner fittings, a heat treatment chamber 7 and a smoke chamber 8 provided inside the shell 1, and a conveyor belt 6 is horizontally arranged inside the heat treatment chamber 7, both ends of the conveyor belt 6 leak out from the openings, and a baffle is provided at the opening, and the upper edge of the baffle is rotatably connected to the shell 1. Under the action of gravity, the baffle is vertical, so that the heat treatment chamber 7 is in a relatively closed state, reducing heat loss, and an insulation tool 5 is placed on the conveyor belt 6. The insulation tool 5 is a building block, mainly made of calcium silicate. The insulation tool 5 is placed on the conveyor belt 6, and then the corner fittings are placed on the insulation tool 5, which is convenient for batch transfer of corner fittings. At the same time, the insulation tool 5 plays a role of insulation protection for the conveyor belt, preventing fireworks from directly heating the conveyor belt and reducing the service life of the conveyor belt.

[0023] A gas main pipe 11 is provided inside the flue gas chamber 8. The gas main pipe 11 is arranged horizontally in a square shape along the length of the outer shell 1. At the same time, a mixture of gas and oxidant is introduced into the gas main pipe 11. Heat exchange pipes 12 are fixedly connected to the gas main pipe 11 at equal distances, and the heat exchange pipes 12 are arranged in an S shape to increase the contact area and improve the heat exchange efficiency. The other end of the heat exchange pipe 12 is fixedly connected to a gas branch pipe 9. The gas branch pipe 9 is located inside the heat treatment chamber 7, and the hot gas branch pipe 9 is arranged horizontally. The gas branch pipe 9 is located directly above the conveyor belt 6. Several burners 10 are fixedly connected to the gas branch pipe 9. The flames ejected from the burners 10 heat the corner fittings on the conveyor belt 6.

[0024] The thermal insulation tooling 5 includes a main body 54, the cross-sectional profile of the main body 54 is "U"-shaped, and conveying grooves 52 are opened on both sides of the main body 54. The mechanic uses a clamping method to fit in the conveying grooves 52 to facilitate the transportation of the thermal insulation tooling 5 and the corner pieces thereon.

[0025] A mating strip 51 is fixedly connected to one side of the lower end of the main body 54, and a mating groove 53 is formed on the other side of the lower end of the main body 54. The mating strip 51 and the mating groove 53 cooperate with each other. The design of the mating strip 51 and the mating groove 53 ensures that there is no gap between adjacent insulation tooling 5, so that flames cannot directly burn the conveyor belt 6, thereby protecting the conveyor belt 6.

[0026] The inner bottom wall of the main body 54 is evenly distributed with protrusions 55. The corner pieces are placed on the protrusions 55 so that there is a gap between the corner pieces and the thermal insulation tooling 5, so that the corner pieces can be heated in all directions as much as possible to improve the heating efficiency.

[0027] The heat treatment chamber 7 and the flue gas chamber 8 are connected. That is, an opening is provided on the partition between the heat treatment chamber 7 and the flue gas chamber 8. The flue gas generated by combustion enters the flue gas chamber 8 through the opening, and the heat in the flue gas is recycled through the heat exchange pipe 12.

[0028] The upper end of the outer shell 1 is fixedly connected to a smoke exhaust pipe 2 for exhausting the smoke in the smoke chamber 8. An air supply pipe 3 is provided inside the smoke exhaust pipe 2. The lower end of the air supply pipe 3 is connected to the gas main pipe 11. Several heat conducting plates 4 are fixedly connected to the side walls of the air supply pipe 3 at equal angles. Similarly, the heat in the flue gas is fully utilized through the heat conducting plates 4 to improve the heat utilization efficiency.

[0029] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiment, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A continuous heat treatment device for container corner fittings, characterized in that: It comprises a rectangular parallelepiped shell (1), a heat treatment chamber (7) and a smoke chamber (8) are provided inside the shell (1), a conveyor belt (6) is horizontally arranged inside the heat treatment chamber (7), and a temperature-insulating tool (5) is placed on the conveyor belt (6); A gas main pipe (11) is provided inside the flue gas chamber (8), and heat exchange pipes (12) are fixedly connected to the gas main pipe (11) at equal distances, and the heat exchange pipes (12) are arranged in an S shape. The other end of the heat exchange pipe (12) is fixedly connected to a gas branch pipe (9), and the gas branch pipe (9) is located inside the heat treatment chamber (7), and the gas branch pipe (9) is located directly above the conveyor belt (6). A plurality of burners (10) are fixedly connected to the gas branch pipe (9).

2. The continuous heat treatment device for container corner fittings according to claim 1, characterized in that: The thermal insulation tool (5) comprises a main body (54), the cross-sectional profile of the main body (54) is "U"-shaped, and both sides of the main body (54) are provided with a transport groove (52).

3. The continuous heat treatment device for container corner fittings according to claim 2, characterized in that: A matching strip (51) is fixedly connected to one side of the lower end of the main body (54), and a matching groove (53) is provided on the other side of the lower end of the main body (54), and the matching strip (51) and the matching groove (53) match each other.

4. The continuous heat treatment device for container corner fittings according to claim 2, characterized in that: The inner bottom wall of the main body (54) is evenly distributed with convex columns (55).

5. The continuous heat treatment device for container corner fittings according to claim 1, characterized in that: The heat treatment chamber (7) and the smoke chamber (8) are connected.

6. The continuous heat treatment device for container corner fittings according to claim 5, characterized in that: The upper end of the housing (1) is fixedly connected to a smoke exhaust pipe (2), an air supply pipe (3) is provided inside the smoke exhaust pipe (2), the lower end of the air supply pipe (3) is connected to a gas main pipe (11), and a plurality of heat conducting plates (4) are fixedly connected to the side wall of the air supply pipe (3) at equal angles.

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