Hearth heating device of sintering furnace

Abstract

The utility model is applicable to the field of sintering furnace structures, and provides a hearth heating device of a sintering furnace, which comprises a hearth body, a conveying mesh belt and a controller. When an infrared heating pipe needs to be mounted, the infrared heating pipe sequentially penetrates through a mounting cylinder and a mounting hole in the hearth body; a containing groove matched with an infrared heating pipe is formed in the inner wall of the hearth body, an extension rod is aligned with an in-out groove and inserted into a mounting cylinder, the extension rod can push a push plate to move and rotate an operation block, the extension rod is made to rotate to the position corresponding to a limiting groove, a person sends the operation block open, the extension rod can be extruded into the limiting groove through the push plate by means of elastic force recovery of a spring, and the infrared heating pipe is placed in the containing groove. The push plate prevents the extension rod from coming out of the limiting groove, the limiting groove prevents the operation block from rotating in the mounting cylinder, in conclusion, the infrared heating pipe can be quickly disassembled and assembled, when the infrared heating pipe breaks down, equipment does not need to be shut down for replacement, and the working efficiency of the equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of sintering furnace structures, in particular to a furnace heating device of a sintering furnace. Background Art

[0002] During the sintering process, precise control of the sintering temperature, compact transport method, heating and cooling rates, and other factors are required to ensure smooth microstructural transformation of the powder compact. In the production of powder metallurgy mechanical parts, the compacts are sintered at high temperatures through the furnace hearth at a constant speed. This requires a furnace with high throughput, high thermal efficiency, low material and heating element costs, and a long lifespan.

[0003] After searching, the Chinese patent application number is: 201210492451.2, which discloses a heating device for the drying zone of a solar cell sintering furnace. The heating unit can be firmly installed inside the furnace of the drying zone. At the same time, the heating tube used is more conducive to achieving a temperature curve for drying in the drying zone. The present invention includes two parallel transmission rails and a transmission rail for transmitting solar cell wafers to be sintered. It also includes an upper furnace chamber arranged above the transmission rails and a lower furnace chamber arranged below the transmission rails. The upper and lower furnace chambers are symmetrically arranged, and the upper and lower furnace chambers include three symmetrically installed upper and lower furnace chambers with different temperature zones and sealed connections. A heating tube is installed inside the upper and lower furnace chambers. The heating tube is an infrared quartz lamp tube, and the infrared quartz lamp tube is a medium-wave tube. Both ends of the heating tube are fixed to the side wall of the furnace chamber by fixing bolts. A hanging clamp for hanging and fixing the heating tube is also installed on the heating tube, one end of the hanging clamp is sleeved on the heating tube, and the other end is fixedly installed on the inner wall of the furnace chamber. There is the following problem: when a heating tube fails, since the heating tube is fixed to the inner wall of the furnace chamber by the clamp, the failed heating tube is not easy to be removed quickly, and the equipment needs to be stopped before it can be replaced, which is very inconvenient. Utility Model Content

[0004] The utility model provides a furnace heating device for a sintering furnace, aiming to solve the problem in the prior art that a heating tube is fixed to the inner wall of the furnace by a clamp, resulting in that a faulty heating tube is difficult to remove quickly and can only be replaced after the equipment stops working, which is very inconvenient.

[0005] The utility model is implemented as follows: a furnace heating device of a sintering furnace comprises a furnace body, a conveyor mesh belt and a controller, wherein an infrared heating tube is arranged inside the furnace body, and the infrared heating tubes are evenly distributed above and below the conveyor mesh belt, the outer wall of the furnace body is fixedly connected to a mounting cylinder, and the outer wall of the mounting cylinder is provided with mounting holes matching the infrared heating tubes, the mounting holes are distributed on the outer wall of the furnace body, and the outer wall of the infrared heating tube is fixedly connected to an operating block, the outer wall of the operating block is fixedly connected to an extension rod, and the outer wall of the mounting hole on the mounting cylinder is provided with an entry and exit groove matching the extension rod, the inner wall of the mounting cylinder is provided with a limiting groove matching the extension rod, and the outer wall of the furnace body is fixedly connected to a spring, the outer wall of the spring is fixedly connected to a push plate, and the push plate is located inside the mounting cylinder.

[0006] Preferably, a handle is fixedly connected to the outer wall of the operating block.

[0007] Preferably, an arc-shaped plate is fixedly connected to the inner wall of the furnace body, and a reflective aluminum mold is fixedly connected to the inner wall of the arc-shaped plate.

[0008] Preferably, a temperature sensor is fixedly connected to the inner wall of the furnace body, and the temperature sensor is located above the arc plate, and the temperature sensor is electrically connected to the controller.

[0009] Preferably, the inner wall of the furnace body is provided with an aerogel felt interlayer.

[0010] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0011] When the infrared heating tube needs to be installed, the infrared heating tube is passed through the mounting holes on the mounting tube and the furnace body in turn. The inner wall of the furnace body is provided with a placement groove matching the infrared heating tube. The extension rod is aligned with the inlet and outlet grooves and inserted into the mounting tube. The extension rod will push the push plate to move and rotate the operating block to rotate the extension rod to a position corresponding to the limit groove. The operator sends the operating block away and the spring restores the operation. The push plate can squeeze the extension rod into the limit groove. The push plate prevents the extension rod from coming out of the limit groove, and the limit groove prevents the operating block from rotating in the mounting tube. In summary, the infrared heating tube can be quickly disassembled and assembled. When the infrared heating tube fails, there is no need to shut down the equipment for replacement, thereby ensuring the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0014] Figure 3 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0015] Figure 4 This is a schematic diagram of the three-dimensional enlarged structure of the installation tube of the utility model;

[0016] Figure 5 This is a schematic diagram of the enlarged three-dimensional structure of the curved plate of the present utility model;

[0017] In the figure: 1. furnace body; 2. conveyor belt; 3. controller; 4. infrared heating tube; 5. mounting tube; 6. mounting hole; 7. operating block; 8. extension rod; 9. entry and exit slot; 10. limit slot; 11. spring; 12. push plate; 13. handle; 14. curved plate; 15. reflective aluminum mold; 16. aerogel felt interlayer; 17. temperature sensor. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0019] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The present invention provides a furnace heating device for a sintering furnace. Figure 1-5As shown, it includes a furnace body 1, a conveyor mesh belt 2 and a controller 3. An infrared heating tube 4 is arranged inside the furnace body 1, and the infrared heating tube 4 is evenly distributed above and below the conveyor mesh belt 2. The outer wall of the furnace body 1 is fixedly connected with a mounting cylinder 5, and the outer wall of the mounting cylinder 5 is provided with a mounting hole 6 matching the infrared heating tube 4. The mounting holes 6 are distributed on the outer wall of the furnace body 1, and the outer wall of the infrared heating tube 4 is fixedly connected with an operating block 7, the outer wall of the operating block 7 is fixedly connected with an extension rod 8, and the outer wall of the mounting hole 6 on the mounting cylinder 5 is provided with an entry and exit groove 9 matching the extension rod 8, the inner wall of the mounting cylinder 5 is provided with a limiting groove 10 matching the extension rod 8, and the outer wall of the furnace body 1 is fixedly connected with a spring 11, the outer wall of the spring 11 is fixedly connected with a push plate 12, and the push plate 12 is located inside the mounting cylinder 5.

[0021] It should be noted that, since the heating tube is fixed to the inner wall of the furnace by a clamp in the prior art, it is difficult to quickly remove the faulty heating tube, and the equipment needs to be stopped before it can be replaced, which is very inconvenient. Therefore, in order to solve the problem that the heating tube is fixed to the inner wall of the furnace by a clamp in the prior art, it is difficult to quickly remove the faulty heating tube, and the equipment needs to be stopped before it can be replaced, which is very inconvenient, when the infrared heating tube 4 needs to be installed, the infrared heating tube 4 is sequentially passed through the mounting tube 5 and the mounting hole 6 on the furnace body 1, and the inner wall of the furnace body 1 is provided with a placement hole that matches the infrared heating tube 4. The extension rod 8 is aligned with the entry and exit slots 9 and inserted into the installation tube 5. The extension rod 8 will push the push plate 12 to move and rotate the operating block 7 to rotate the extension rod 8 to the position corresponding to the limit slot 10. The personnel sends away the operating block 7 and the elastic force of the spring 11 is restored to enable the push plate 12 to squeeze the extension rod 8 into the limit slot 10. The push plate 12 prevents the extension rod 8 from coming out of the limit slot 10, and the limit slot 10 prevents the operating block 7 from rotating in the installation tube 5. In summary, the infrared heating tube 4 can be quickly disassembled and assembled. When the infrared heating tube 4 fails, there is no need to stop the equipment for replacement, thereby ensuring the working efficiency of the equipment.

[0022] In a further preferred embodiment of the present invention, Figure 3 As shown, a handle 13 is fixedly connected to the outer wall of the operating block 7 .

[0023] In this embodiment, the handle 13 facilitates operation of the infrared heating tube 4 .

[0024] In a further preferred embodiment of the present invention, Figure 1 As shown, the inner wall of the furnace body 1 is fixedly connected to a curved plate 14 , and the inner wall of the curved plate 14 is fixedly connected to a reflective aluminum mold 15 .

[0025] In this embodiment, the arc plate 14 is located outside the infrared heating tube 4 and reflects the light generated by the infrared heating tube 4 through the reflective aluminum mold 15, thereby improving the heat utilization of the infrared heating tube 4.

[0026] In a further preferred embodiment of the present invention, Figure 2 As shown, a temperature sensor 17 is fixedly connected to the inner wall of the furnace body 1 , and the temperature sensor 17 is located above the arc plate 14 , and the temperature sensor 17 is electrically connected to the controller 3 .

[0027] In this embodiment, the temperature of the outer wall of the curved plate 14 is detected by the temperature sensor 17. When the infrared heating tube 4 fails, the temperature of the curved plate 14 matching the infrared heating tube 4 will drop. The temperature sensor 17 detects the temperature drop of the curved plate 14, and the temperature sensor 17 sends a signal to the controller 3. The controller 3 sends a signal to the control terminal, which makes it convenient for personnel to promptly understand the fault location of the infrared heating tube 4 and quickly replace it.

[0028] In a further preferred embodiment of the present invention, Figure 2 As shown, the inner wall of the furnace body 1 is provided with an aerogel felt interlayer 16 .

[0029] In this embodiment, the aerogel felt interlayer 16 has good thermal insulation properties. The aerogel felt interlayer 16 prevents the temperature of the inner wall of the furnace body 1 from being transferred to the outer wall of the furnace body 1, thereby ensuring that the temperature of the outer wall of the furnace body 1 is normal.

[0030] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0031] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0032] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A furnace heating device for a sintering furnace, characterized in that: The invention comprises a furnace body (1), a conveyor mesh belt (2) and a controller (3); an infrared heating tube (4) is arranged inside the furnace body (1), and the infrared heating tube (4) is evenly distributed above and below the conveyor mesh belt (2); an installation tube (5) is fixedly connected to the outer wall of the furnace body (1), and an installation hole (6) matching the infrared heating tube (4) is opened on the outer wall of the installation tube (5); the installation holes (6) are distributed on the outer wall of the furnace body (1), and the outer wall of the infrared heating tube (4) is fixedly connected to the outer wall of the installation tube (5). An operating block (7) is provided, the outer wall of the operating block (7) is fixedly connected to an extension rod (8), and the outer wall of the mounting hole (6) on the mounting cylinder (5) is provided with an entry and exit groove (9) matching the extension rod (8), the inner wall of the mounting cylinder (5) is provided with a limit groove (10) matching the extension rod (8), and the outer wall of the furnace body (1) is fixedly connected to a spring (11), the outer wall of the spring (11) is fixedly connected to a push plate (12), and the push plate (12) is located inside the mounting cylinder (5).

2. The furnace heating device of a sintering furnace according to claim 1, characterized in that: A handle (13) is fixedly connected to the outer wall of the operating block (7).

3. The furnace heating device of a sintering furnace according to claim 1, characterized in that: The inner wall of the furnace body (1) is fixedly connected to an arc-shaped plate (14), and the inner wall of the arc-shaped plate (14) is fixedly connected to a reflective aluminum mold (15).

4. The furnace heating device of a sintering furnace according to claim 3, characterized in that: A temperature sensor (17) is fixedly connected to the inner wall of the furnace body (1), and the temperature sensor (17) is located above the arc plate (14). The temperature sensor (17) is electrically connected to the controller (3).

5. The furnace heating device of a sintering furnace according to claim 1, characterized in that: The inner wall of the furnace body (1) is provided with an aerogel felt interlayer (16).

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