Improved horizontal graphitization furnace

Abstract

The utility model discloses an improved horizontal graphitization furnace. The improved horizontal graphitization furnace comprises a shell, a heating and heat preservation assembly is arranged in the shell. A main coil is arranged between the heating and heat preservation assembly and the inner wall of the shell. The heating and heat preservation assembly comprises an outer heat preservation cylinder; an inner thermal insulation cylinder is arranged in the outer thermal insulation cylinder; a crucible is arranged in the inner thermal insulation cylinder; the main coil is used for heating; the crucible is used for preventing graphitization operation; second heat preservation covers are arranged at the two ends of the inner heat preservation cylinder correspondingly. The two ends of the outer heat preservation cylinder are each provided with a first heat preservation cover. The first heat preservation covers are located on the outer sides of the corresponding second heat preservation covers and make close contact with the second heat preservation covers. The first heat preservation cover and the outer heat preservation cylinder are made of common soft felt materials. The second heat preservation cover and the inner heat preservation cylinder are made of a graphite soft felt material; the crucible is made of a high-purity graphite isostatic pressing material; according to the utility model, the sintering temperature can reach 3000-3200 DEG C, the yield is higher, the safety and convenience are high, and the investment cost is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field related to the improvement of graphitization furnaces, and specifically relates to an improved horizontal graphitization furnace which can achieve a sintering temperature of 3000-3200 degrees, has higher output, is highly safe and convenient, and has lower investment cost. Background Art

[0002] The graphitization furnace is used to process graphite products. As the Chinese patent "Horizontal Graphite Furnace" (2014105695469) discloses a horizontal graphite furnace, comprising a furnace core assembly; the furnace core assembly comprises a graphite heating element, a heat-insulating graphite blanket, and a furnace core end cover; the furnace core assembly is horizontally placed in the furnace body; the heat-insulating graphite blanket is in the shape of a cylindrical cup, and the opening of the heat-insulating graphite blanket is provided with a circular groove; the inner wall of the heat-insulating graphite blanket is provided with a layer of graphite heating element; .... A corundum insulation layer is provided on the outer surface of the graphite blanket; sensors are provided at intervals inside the corundum insulation layer; the head of the furnace core end cover is provided in the groove of the thermal insulation graphite blanket and closes the opening of the thermal insulation graphite blanket, and the furnace core end cover can move horizontally along the axial direction of the thermal insulation graphite blanket; the furnace cover is provided at the opening of the furnace body; the furnace cover is provided outside the furnace core end cover and faces the furnace core end cover; the present invention can produce graphite products of larger sizes and can improve the die-cutting efficiency of synthetic graphite products.

[0003] Existing graphitization furnaces have problems such as low efficiency, low safety and inconvenient operation when sintering graphite films; in particular, they cannot sinter at temperatures above 3000 degrees and cannot meet the needs of technological development.

[0004] To this end, we have developed an improved horizontal graphitization furnace that can reach a sintering temperature of 3000-3200 degrees, has higher output, is safer and more convenient, and has lower investment costs. Summary of the Invention

[0005] The purpose of the utility model is to provide an improved horizontal graphitization furnace which can achieve a sintering temperature of 3000-3200 degrees, has higher output, is safer and more convenient, and has lower investment cost.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an improved horizontal graphitization furnace, comprising a shell; a heating and heat preservation component is arranged in the shell; a main coil is arranged between the heating and heat preservation component and the inner wall of the shell; the heating and heat preservation component comprises an outer heat preservation tube; an inner heat preservation tube is arranged in the outer heat preservation tube; a crucible is arranged in the inner heat preservation tube; the main coil is used for heating; the crucible is used to prevent graphitization operation; a second heat preservation cover is respectively provided at both ends of the inner heat preservation tube; a first heat preservation cover is respectively provided at both ends of the outer heat preservation tube; the first heat preservation cover is located on the outside of the corresponding second heat preservation cover and is in close contact with each other; the first heat preservation cover is made of ordinary soft felt material; the second heat preservation cover is made of graphite soft felt material; the outer heat preservation tube is made of ordinary soft felt material; the inner heat preservation tube is made of graphite soft felt material; the crucible is made of high-purity graphite isostatic pressing material.

[0007] Preferably, the crucible is further provided with an opening; the opening is closed by a crucible cover; the opening is used for placing and removing graphitized materials; the crucible cover is made of high-purity graphite isostatically pressed material.

[0008] Preferably, the graphite soft felt contains at least 20 layers of full graphite felt.

[0009] Preferably, the gap between the inner heat-insulating tube and the second heat-insulating cover is filled with hard felt; the gap between the outer heat-insulating tube and the first heat-insulating cover is filled with hard felt.

[0010] Preferably, the improved horizontal graphitization furnace can be used in conjunction with two improved horizontal graphitization furnaces and a set of vacuum systems, wherein the vacuum systems are respectively connected to the improved horizontal graphitization furnaces through pipelines; the vacuum system is used to evacuate the interior of the improved horizontal graphitization furnace.

[0011] Compared with the prior art, the present invention provides an improved horizontal graphitization furnace with the following beneficial effects:

[0012] The improved horizontal graphitization furnace 1 described in the utility model can achieve a sintering temperature of 3000-3200 degrees, which can meet the needs of technological development. At the same time, the horizontal graphitization furnace is safer and more convenient than the vertical graphitization furnace. In addition, two improved horizontal graphitization furnaces 1 are used in conjunction with a vacuum system 4, which has lower investment costs and higher output. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1This is a front view of an improved horizontal graphitization furnace proposed in the utility model;

[0015] Figure 2 This is a left view of an improved horizontal graphitization furnace proposed in the utility model;

[0016] Figure 3 This is a top view of an improved horizontal graphitization furnace proposed in the present utility model;

[0017] Figure 4 This is a cross-sectional view of an improved horizontal graphitization furnace (lacking the main coil) proposed in the present utility model;

[0018] Figure 5 This is a three-dimensional diagram of a main coil for an improved horizontal graphitization furnace proposed in the present invention;

[0019] Figure 6 This is a cross-sectional view of a heating and heat-insulating assembly of an improved horizontal graphitization furnace proposed in the present invention;

[0020] Figure 7 This is a front view of an improved horizontal graphitization furnace proposed in the utility model in an application state;

[0021] Figure 8 A top view of an improved horizontal graphitization furnace proposed in the present invention in an application state;

[0022] In the figure: 1. Horizontal graphitization furnace; 2. Heating and insulation assembly; 3. Main coil; 4. Vacuum system; 5. Pipeline; 21. First insulation cover; 22. Second insulation cover; 23. Crucible; 24. Outer insulation tube; 25. Inner insulation tube. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6The utility model provides a technical solution: an improved horizontal graphitization furnace 1, comprising a shell (not shown); a heating and heat preservation component 2 is provided in the shell; a main coil 3 is provided between the heating and heat preservation component 2 and the inner wall of the shell; the heating and heat preservation component 2 comprises an outer heat preservation tube 24; an inner heat preservation tube 25 is provided in the outer heat preservation tube 24; a crucible 23 is provided in the inner heat preservation tube 25; the main coil 3 is used for heating; the crucible 23 is used to prevent graphitization operation; the two ends of the inner heat preservation tube 25 are respectively provided with a second heat preservation cover 22; the two ends of the outer heat preservation tube 24 are respectively provided with a first heat preservation cover Thermal insulation cover 21; the first thermal insulation cover 21 is located on the outside of the corresponding second thermal insulation cover 22 and is in close contact with each other; the first thermal insulation cover 21 is made of ordinary soft felt; the second thermal insulation cover 22 is made of graphite soft felt; the outer thermal insulation tube 24 is made of ordinary soft felt; the inner thermal insulation tube 25 is made of graphite soft felt; the crucible 23 is made of high-purity graphite isostatic pressing material; the crucible 23 is also provided with an opening (not marked); the opening is closed by a crucible cover (not marked); the opening is useful for placing and removing graphitized flow; the crucible cover is made of high-purity graphite isostatic pressing material.

[0025] In this embodiment, the full graphite felt in the graphite soft felt has at least 20 layers.

[0026] In this embodiment, the gap between the inner insulation tube 25 and the second insulation cover 22 is filled with hard felt (not marked); the gap between the outer insulation tube 24 and the first insulation cover 21 is filled with hard felt (not marked).

[0027] As attached Figure 7-8 In this embodiment, when the improved horizontal graphitization furnace 1 is used, two improved horizontal graphitization furnaces 1 are used in conjunction with a set of vacuum systems 4. The vacuum systems 4 are connected to the improved horizontal graphitization furnaces 1 through pipelines 5. The vacuum systems 4 are used to evacuate the interior of the improved horizontal graphitization furnace 1.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The improved horizontal graphitization furnace 1 described in the utility model can achieve a sintering temperature of 3000-3200 degrees, which can meet the needs of technological development. At the same time, the horizontal graphitization furnace is safer and more convenient than the vertical graphitization furnace. In addition, two improved horizontal graphitization furnaces 1 are used in conjunction with a vacuum system 4, which has lower investment costs and higher output.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved horizontal graphitization furnace, comprising a shell; a heating and heat-insulating assembly is disposed in the shell; a main coil is disposed between the heating and heat-insulating assembly and the inner wall of the shell; the heating and heat-insulating assembly includes an outer heat-insulating cylinder; an inner heat-insulating cylinder is disposed in the outer heat-insulating cylinder; a crucible is disposed in the inner heat-insulating cylinder; the main coil is used for heating; the crucible is used to prevent graphitization; second heat-insulating covers are respectively disposed at both ends of the inner heat-insulating cylinder; first heat-insulating covers are respectively disposed at both ends of the outer heat-insulating cylinder; the first heat-insulating covers are located outside the corresponding second heat-insulating covers and are in close contact with each other; and the furnace is characterized in that: The first insulation cover is made of ordinary soft felt; the second insulation cover is made of graphite soft felt; the outer insulation tube is made of ordinary soft felt; the inner insulation tube is made of graphite soft felt; and the crucible is made of high-purity graphite isostatic pressing material.

2. The improved horizontal graphitization furnace according to claim 1, characterized in that: The crucible is also provided with an opening; the opening is closed by a crucible cover; the opening is used for placing and removing graphitized materials; the crucible cover is made of high-purity graphite isostatic pressing material.

3. The improved horizontal graphitization furnace according to claim 1, characterized in that: The full graphite felt in the graphite soft felt has at least 20 layers.

4. The improved horizontal graphitization furnace according to claim 1, characterized in that: The gap between the inner heat-insulating tube and the second heat-insulating cover is filled with hard felt; the gap between the outer heat-insulating tube and the first heat-insulating cover is filled with hard felt.

5. The improved horizontal graphitization furnace according to claim 1, characterized in that: Two improved horizontal graphitization furnaces can be used in conjunction with a set of vacuum systems. The vacuum systems are connected to the improved horizontal graphitization furnaces through pipelines. The vacuum system is used to evacuate the interior of the improved horizontal graphitization furnace.

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