Volatile discharge device for graphitization furnace

Abstract

The application provides a volatile discharge device for a graphitization furnace, which comprises a vertical pipe, a net plate is fixed horizontally in the vertical pipe, heat preservation materials can be stacked above the net plate, a space for accommodating volatiles is arranged below the net plate, a cylindrical cover body is arranged on the upper end of the vertical pipe, a dust filter net is fixed in the cover body, the bottom of the vertical pipe is placed on the bottom layer of heat preservation materials, and the side end of the vertical pipe is inserted into the interior through the covering of the middle layer and the top layer of heat preservation materials. The volatile discharge device for the graphitization furnace can conveniently arrange a furnace top exhaust hole through the vertical pipe, the gas generated in the graphitization furnace during production can naturally rise under the action of thermal buoyancy, is discharged through the vertical pipe, and the accumulation of the gas in the furnace is timely reduced to stabilize the pressure in the furnace. The heat preservation materials can not only avoid too fast heat dissipation speed in the vertical pipe, but also can preliminarily filter dust, and the dust is secondarily filtered through the dust filter net, so that the particle amount in the discharged volatiles can be effectively reduced.

Description

Technical Field

[0001] This application relates to pressure stabilization and exhaust technology for the top of a graphitization furnace, and more particularly to a volatile matter discharge device for a graphitization furnace. Background Technology

[0002] During the heating process, a large amount of volatile gases accumulate inside the Atchison graphitization furnace. It is necessary to set an exhaust vent on the top of the furnace to promptly discharge the reaction gases outside the furnace, prevent the accumulation of gases inside the furnace from causing pressure increases, and ensure the smooth progress of the graphitization reaction.

[0003] When laying insulation material on the top of the existing Atchison graphitization furnace, square or round vent holes are pre-reserved evenly in an array along the length of the furnace. After the vent hole walls are built, the holes are filled with large-particle insulation material. The volatile gases in the furnace rise naturally under the action of thermal buoyancy and are discharged through the pre-reserved vent holes.

[0004] The existing method of constructing exhaust vents on the furnace top of graphitization furnaces is complex, and the construction process is slow, affecting production efficiency. Furthermore, the vents cannot be reused after being removed from the furnace. Moreover, the existing exhaust vents cannot effectively filter out dust particles emitted with volatile organic compounds, causing pollution as these particles diffuse into the plant. Utility Model Content

[0005] This application provides a volatile matter discharge device for a graphitization furnace, which solves the problem that the exhaust port of the existing graphitization furnace is complicated and the discharged volatile matter carries particles that cause pollution to the factory.

[0006] This application provides a volatile matter discharge device for a graphitization furnace, including a vertical pipe, a mesh plate fixed horizontally inside the vertical pipe, insulation material can be stacked above the mesh plate, and a space for volatile matter to enter is provided below the mesh plate. The upper end of the vertical pipe is covered with a cylindrical cover, and a dust filter screen is fixed inside the cover. The bottom of the vertical pipe is placed on the bottom layer of insulation material, and the side end of the vertical pipe is inserted into the interior through the covering of the middle layer of insulation material and the top layer of insulation material.

[0007] Optionally, a through hole is provided on the side wall of the vertical pipe below the mesh plate, and the through hole is used for volatiles in the middle layer of insulation material to enter the vertical pipe from the side end.

[0008] Optionally, an inwardly extending retaining ring is fixed to the bottom of the vertical tube.

[0009] Optionally, the dust filter is conical, and the upper end of the cover is fixed with an upwardly contracting conical hood.

[0010] Optionally, lifting rings are hinged to both sides of the vertical tube.

[0011] The volatile matter discharge device for a graphitization furnace provided in this application allows for convenient arrangement of furnace top exhaust holes via a vertical pipe. During the graphitization process, gases generated inside the furnace rise naturally under thermal buoyancy and are discharged through the vertical pipe, effectively reducing gas accumulation and stabilizing furnace pressure. Insulation material is placed inside the vertical pipe via a mesh plate, filling and insulating the interior to prevent excessive heat dissipation and its impact on the graphitization temperature within the furnace. Furthermore, as the volatile gases rise and are discharged from the vertical pipe, they undergo preliminary dust filtration through the insulation material and secondary dust filtration through a dust filter, effectively reducing the amount of particulate matter discharged from the volatiles. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A front view of a volatile matter discharge device for a graphitization furnace provided in an embodiment of this application;

[0014] Figure 2 A volatile matter discharge device for a graphitization furnace provided in one embodiment of this application Figure 1 Top view;

[0015] Figure 3 A cross-sectional view of the installation position of a volatile matter discharge device for a graphitization furnace provided in an embodiment of this application;

[0016] Figure 4 This is a top view of the installation position of a volatile matter discharge device for a graphitization furnace provided in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Vertical pipe; 2. Mesh panel; 3. Insulation material; 4. Cover; 5. Dust filter; 6. Through hole; 7. Baffle ring; 8. Conical cover; 9. Hanging ring; 10. Bottom layer insulation material; 11. Middle layer insulation material; 12. Top layer insulation material. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0020] like Figures 1-4 As shown, one embodiment of this application provides a volatile matter discharge device for a graphitization furnace, including a vertical pipe 1, a mesh plate 2 fixed horizontally inside the vertical pipe 1, insulation material 3 can be stacked above the mesh plate 2, and there is a space below the mesh plate 2 to accommodate volatile matter. The upper end of the vertical pipe 1 is covered with a cylindrical cover 4, and a dust filter 5 is fixed inside the cover 4. The bottom of the vertical pipe 1 is placed on the bottom layer insulation material 10, and the side end of the vertical pipe 1 is inserted into the interior through the covering of the middle layer insulation material 11 and the top layer insulation material 12.

[0021] In operation, a bottom layer of insulation material 10 is first laid on the top of the Atchison graphitization furnace. Then, vertical pipes 1 for exhaust are placed at intervals above the bottom layer of insulation material 10. A middle layer of insulation material 11 is then laid around the vertical pipes 1 on top of the bottom layer of insulation material 10. After the vertical pipes 1 are securely filled, insulation material 3 is filled inside. Insulation material 3 serves both to filter dust from the discharged volatiles and to provide insulation for the vertical pipes 1. Insulation material 3 can be the bottom layer of insulation material 10, the middle layer of insulation material 11, or the top layer of insulation material 12, selected according to exhaust and insulation requirements. Larger particle sizes result in better exhaust performance, while smaller particle sizes result in better insulation performance. Then, the top layer of insulation material 12 is covered on top of the middle layer of insulation material 11, with the top of the vertical pipes 1 higher than the top layer of insulation material 12. A cover 4 is placed on top of the vertical pipes 1, and a dust filter 5 filters the volatiles discharged upwards from the vertical pipes 1.

[0022] In this embodiment, the furnace top exhaust vents are conveniently arranged via the vertical pipe 1. During the graphitization process, the gas generated inside the furnace rises naturally under thermal buoyancy and is discharged through the vertical pipe 1, promptly reducing gas accumulation and stabilizing the furnace pressure. Insulation material 3 is carried inside the vertical pipe 1 via a mesh plate 2. The insulation material 3 fills and insulates the vertical pipe 1, preventing excessive heat dissipation from affecting the graphitization temperature inside the furnace. Furthermore, when the volatile gases rise and are discharged from the vertical pipe 1, they undergo preliminary dust filtration through the insulation material 3 and secondary dust filtration through the dust filter screen 5, effectively reducing the amount of particles discharged from the volatiles.

[0023] In one possible implementation, a through hole 6 is provided on the side wall of the vertical pipe 1 below the mesh plate 2, and the through hole 6 is used for volatiles in the middle layer insulation material 11 to enter the vertical pipe 1 from the side.

[0024] Volatile substances that rise through the bottom layer insulation material 10 with larger particle size and enter the middle layer insulation material 11 with smaller particle size can be discharged into the vertical pipe 1 through the through holes 6 on the side wall.

[0025] In one possible implementation, the bottom of the vertical tube 1 is fixed with an inwardly extending retaining ring 7.

[0026] The retaining ring 7 serves to support the vertical pipe 1, preventing it from settling, sinking into the bottom insulation material 10, and shifting or tilting. The inward extension of the retaining ring 7 does not affect the upward pulling of the vertical pipe 1 when it is unloaded from the furnace.

[0027] In one possible implementation, the dust filter 5 is conical, and the upper end of the cover 4 is fixed with an upwardly contracting conical hood 8.

[0028] The conical dust filter 5 increases the filtration area to avoid clogging and ensures that the volatiles discharged from the vertical pipe 1 can be filtered smoothly in a single production cycle.

[0029] In one possible implementation, lifting rings 9 are hinged to both sides of the vertical tube 1.

[0030] The lifting ring 9 facilitates the placement or removal of the vertical pipe 1.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A volatile matter discharge device for a graphitization furnace, comprising a vertical pipe (1), characterized in that: A mesh plate (2) is fixed horizontally inside the vertical pipe (1). Insulation material (3) can be stacked above the mesh plate (2). There is a space below the mesh plate (2) to accommodate volatile substances. A cylindrical cover (4) is provided at the upper end of the vertical pipe (1). A dust filter (5) is fixed inside the cover (4). The bottom of the vertical pipe (1) is placed on the bottom insulation material (10). The side end of the vertical pipe (1) is inserted into the interior through the coverage of the middle insulation material (11) and the top insulation material (12).

2. The volatile matter discharge device for a graphitization furnace according to claim 1, characterized in that: The vertical pipe (1) below the mesh plate (2) has a through hole (6) on its side wall. The through hole (6) is used for the volatiles in the middle layer insulation material (11) to enter the vertical pipe (1) from the side.

3. The volatile matter discharge device for a graphitization furnace according to claim 1, characterized in that: The bottom of the vertical tube (1) is fixed with an inwardly extending retaining ring (7).

4. The volatile matter discharge device for a graphitization furnace according to claim 1, characterized in that: The dust filter (5) is conical, and the upper end of the cover (4) is fixed with an upwardly contracting conical cover (8).

5. The volatile matter discharge device for a graphitization furnace according to any one of claims 1-4, characterized in that: The vertical tube (1) is hinged to both sides with lifting rings (9).

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