Gas blocking device of large horizontal furnace

Abstract

The utility model discloses a gas blocking device of a large horizontal furnace, and belongs to the technical field of carbon-based material high-temperature heat treatment equipment. Comprising a top splicing track, a bottom splicing track and a plurality of gas baffles, the bottom splicing track and the top splicing track are arranged in the axial direction of a furnace body of the horizontal furnace, the bottom splicing track is connected to the bottom of a thermal field in the horizontal furnace, the top splicing track is connected to the top of the thermal field in the horizontal furnace, and the multiple gas blocking plates are inserted between the top splicing track and the bottom splicing track and sequentially spliced to form the whole gas blocking structure. The spliced gas baffle shields a heating structure fixed on the side wall of the horizontal furnace; according to the utility model, cavitation caused by process gas to conductive carbon materials such as a graphite heater in the furnace in the high-temperature heat treatment process of the carbon-based material is reduced, and the service life of the thermal field material is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature heat treatment equipment for carbon-based materials, in particular to a large-scale horizontal furnace air blocking device. Background Art

[0002] In the process of carbon-based material processing, high-temperature heat treatment links such as graphitization and purification are involved, and this step needs to be carried out in a high-temperature vertical or horizontal furnace. During the high-temperature heat treatment process, the process gas cavitates the conductive carbon materials such as the graphite heater in the furnace, resulting in problems such as a decrease in the service life of the thermal field material. If the service life of the heater is to be increased, measures must be taken to separate the heater from the process gas in the furnace to reduce the cavitation effect of the process gas on the heater.

[0003] Traditional small vertical high-temperature furnaces mostly use graphite, carbon-carbon and other muffle structures to protect heaters and other thermal field materials due to their small thermal field area. Large horizontal furnaces have a large thermal field area, making it difficult to install and use an integrated air shield, which leads to cavitation problems in large horizontal heating furnace heaters. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and proposes a large horizontal furnace air baffle device. Aiming at the particularity of the large structure volume of the large horizontal furnace itself, a spliced ​​air baffle device is adopted to solve the problem of cavitation effect of furnace gas on graphite parts such as heaters.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0006] A large-scale horizontal furnace air baffle device comprises a top splicing track, a bottom splicing track, and a plurality of air baffle plates; the bottom splicing track and the top splicing track are both arranged along the axial direction of the furnace body of the horizontal furnace, the bottom splicing track is connected to the bottom of the heat field in the horizontal furnace, the top splicing track is connected to the top of the heat field in the horizontal furnace, a plurality of air baffle plates are inserted between the top splicing track and the bottom splicing track, and are spliced ​​in sequence to form an entire air baffle structure, and the spliced ​​air baffle plates shield the heating structure fixed on the side wall of the horizontal furnace.

[0007] Furthermore, a support structure is connected to the bottom of the bottom splicing track and is fixed to the bottom of the horizontal furnace through the support structure.

[0008] Furthermore, the support structure includes several gas hood support plates and several support columns; the bottom of the bottom splicing track is connected to several support columns, and the bottoms of two adjacent support columns are connected to gas hood support plates; and several gas hood support plates are fixed to the bottom of the thermal field in the horizontal furnace.

[0009] Furthermore, limit strips are connected to track edges of the top splicing track and the bottom splicing track.

[0010] Furthermore, the limit strip is connected to the top splicing track and the bottom splicing track respectively through carbon-carbon connectors.

[0011] Furthermore, a handle is connected to one side of the air baffle through a carbon-carbon connector.

[0012] Furthermore, the air baffle is made of graphite material or carbon-carbon material.

[0013] Furthermore, when the air baffle is made of graphite material, a rib is fixedly connected to one side of the air baffle through a carbon-carbon connector to improve the strength of the air baffle.

[0014] The beneficial effects of the utility model compared with the prior art are:

[0015] The utility model adopts a graphite component splicing scheme, wherein the support plate is fixed to the bottom of the thermal field in the furnace, the upper part of the support plate is sequentially connected to the support column, the bottom splicing track, the air baffle and the top splicing track, the top splicing track is connected to the top of the thermal field in the furnace, and the ribs and the handle are fixed on both sides of the air baffle through carbon-carbon connectors. The utility model adopts a splicing type, which has the advantages of convenient processing and easy installation. At the same time, it can reduce the cavitation effect of the gas in the furnace on the graphite components such as the heater, thereby improving the service life of the thermal field and facilitating the stable operation of the equipment. During the high-temperature heat treatment of carbon-based materials, the cavitation caused by the process gas to the conductive carbon materials such as the graphite heater in the furnace is reduced, thereby improving the service life of the thermal field materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the large-scale horizontal furnace air blocking device of the utility model;

[0017] Figure 2 It is a side view of the air baffle device of a large horizontal furnace installed in the furnace;

[0018] In the figure:

[0019] 1-gas hood support plate; 2-support column; 3-bottom splicing track; 4-limiting strip; 5-air baffle; 6-rib; 7-top splicing track; 8-handle; 9-horizontal furnace; 10-heating structure; 11-support platform. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0021] like Figure 1 and Figure 2 As shown, this embodiment provides a large horizontal furnace air blocking device, including a plurality of air hood support plates 1, a plurality of support columns 2, a bottom splicing rail 3, a limit strip 4, a plurality of air blocking plates 5, ribs 6, a top splicing rail 7, and a handle 8.

[0022] Among them, the bottom splicing track 3 is arranged along the axial direction of the furnace body of the horizontal furnace 9, and the bottom of the bottom splicing track 3 is connected to several support columns 2, and the bottoms of two adjacent support columns 2 are connected to the gas hood support plate 1; several gas hood support plates 1 are fixed to the bottom of the heat field in the horizontal furnace 9.

[0023] The bottom edges of several air baffles 5 are sequentially inserted into the bottom splicing track 3, and the top edges of several air baffles 5 are sequentially inserted into the top splicing track 7. The top splicing track 7 has the same structure as the bottom splicing track 3 and is also arranged along the axial direction of the horizontal furnace 9. The top splicing track 7 is connected to the top of the thermal field in the horizontal furnace 9. Several air baffles 5 are inserted between the top splicing track 7 and the bottom splicing track 3, and are sequentially spliced ​​to form a whole air baffle structure. The splicing length of the air baffles 5 can be adjusted according to the length of the furnace body of the horizontal furnace 9. The spliced ​​air baffles 5 can shield the heating structure 10 fixed on the side wall of the horizontal furnace 9 to reduce the cavitation of the heating structure 10 by the process gas.

[0024] A handle 8 is connected to one side of the air baffle plate 5 via a carbon-carbon connector, which can provide convenience for personnel to install.

[0025] The track edges of the top joint track 7 and the bottom joint track 3 are connected to the limit strip 4 through a carbon-carbon connector. The limit strip 4 can prevent the air baffle 5 from shifting during installation and movement.

[0026] The air baffle plate 5, the air hood support plate 1, the support column 2, the top joint track 7 and the bottom joint track 3 can be made of carbon-carbon material. The carbon-carbon material has high strength, can save the use of the rib 6, and has the advantages of light structure and easy installation.

[0027] If the air baffle plate 5 is made of graphite material, a rib 6 made of graphite material may be fixedly connected to one side of the air baffle plate 5 through a carbon-carbon connector to improve the strength of the air baffle plate 5 .

[0028] like Figure 2 As shown, the middle of the horizontal furnace 9 is a supporting platform 11 for placing the carbon-based materials to be processed, and a heating structure 10 is arranged along the furnace body on the inner wall of the horizontal furnace 9. The outsides of the heating structures 10 on both sides are blocked by the air blocking device described in this embodiment, which does not affect the heating of the carbon-based materials and also protects the heating structure 10 to reduce cavitation.

[0029] The utility model adopts a splicing type, which has the advantages of convenient processing and easy installation, and can reduce the cavitation effect of the gas in the furnace on the heater and other graphite parts, thereby increasing the service life of the thermal field and facilitating the stable operation of the equipment.

[0030] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.

Claims

1. A large horizontal furnace air blocking device, characterized in that: The invention comprises a top splicing track (7), a bottom splicing track (3), and a plurality of air baffles (5); the bottom splicing track (3) and the top splicing track (7) are both arranged along the axial direction of the furnace body of the horizontal furnace (9); the bottom splicing track (3) is connected to the bottom of the heat field in the horizontal furnace (9); the top splicing track (7) is connected to the top of the heat field in the horizontal furnace (9); a plurality of air baffles (5) are inserted between the top splicing track (7) and the bottom splicing track (3), and are spliced ​​in sequence to form an entire air baffle structure; the spliced ​​air baffles (5) shield the heating structure (10) fixed on the side wall of the horizontal furnace (9).

2. A large-scale horizontal furnace air blocking device according to claim 1, characterized in that: The bottom of the bottom splicing track (3) is connected to a supporting structure and is fixed to the bottom of the horizontal furnace (9) via the supporting structure.

3. A large-scale horizontal furnace air blocking device according to claim 2, characterized in that: The support structure comprises a plurality of gas hood support plates (1) and a plurality of support columns (2); the bottom of the bottom joint track (3) is connected to the plurality of support columns (2), and the bottoms of two adjacent support columns (2) are connected to the gas hood support plates (1); and the plurality of gas hood support plates (1) are fixed to the bottom of the thermal field in the horizontal furnace (9).

4. A large-scale horizontal furnace air blocking device according to claim 1, characterized in that: The track edges of the top splicing track (7) and the bottom splicing track (3) are both connected to limit strips (4).

5. A large-scale horizontal furnace air blocking device according to claim 4, characterized in that: The limiting strip (4) is respectively connected to the top splicing track (7) and the bottom splicing track (3) through carbon-carbon connectors.

6. A large-scale horizontal furnace air blocking device according to claim 1, characterized in that: A handle (8) is connected to one side of the air baffle (5) via a carbon-carbon connector.

7. A large-scale horizontal furnace air blocking device according to claim 1, characterized in that: The air baffle (5) is made of graphite material or carbon-carbon material.

8. A large-scale horizontal furnace air blocking device according to claim 7, characterized in that: When the air baffle plate (5) is made of graphite material, a carbon-carbon connecting piece is used to fix the connecting rib (6) on one side of the air baffle plate (5) to improve the strength of the air baffle plate (5).

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