Vacuum dryer for graphite impregnation

Abstract

The utility model relates to a vacuum dryer for graphite impregnation. The problems that in the prior art, graphite dipping and drying operation is inconvenient, and production efficiency is affected are solved. The device comprises a heating base, an assembling frame is arranged on the heating base, a vacuum drying frame is arranged on the circumferential inner side of the assembling frame, an external vacuum air pump is connected to the assembling frame, and lifting type graphite loading mechanisms are connected to the two sides of the vacuum drying frame through driving mechanisms; a fluid cavity sealed through a sealing cover plate is formed between the bottom of the vacuum drying frame and the circumferential inner wall of the assembling frame, and sliding push plate assemblies capable of communicating the hot oil drying cavity in the inner wall of the lifting type graphite loading mechanism with the fluid cavity are arranged on the two sides of the vacuum drying frame. The graphite dipping device has the advantages that the operation is convenient, the graphite can be quickly switched to a drying process after being dipped, the drying effect is good, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a vacuum dryer for graphite impregnation. Background Art

[0002] Graphite electrode refers to a high-temperature resistant graphite conductive material made of petroleum coke and asphalt coke as aggregates and coal tar as binder, through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. When processing graphite electrodes, graphite needs to be impregnated. After impregnation, the graphene powder is poured into the drying equipment for drying. It is inconvenient for the staff to operate the impregnated graphite, and the conventional drying speed is slow. In addition, the graphite needs to be transported, which is very inconvenient. It is difficult to achieve rapid impregnation and drying, which affects production efficiency.

[0003] In order to solve the deficiencies in the existing technology, people have conducted long-term explorations and proposed a variety of solutions. For example, a Chinese patent document discloses a graphene oxide powder vacuum drying device [CN202210868311.4], which includes a vacuum heating tank, a semi-elliptical cover, a loading and ejecting assembly, a cylinder, a filter replacement assembly, and a shifting assembly. The present application has a reasonable structure and can form a loading space with ejection potential energy, which greatly improves the efficiency of instantaneous evaporation of water from the powder during the diffusion process, replaces the powder stirring structure, shortens the drying completion time, and realizes the function of dry powder shifting and discharge. At the same time, it is convenient to quickly replace the powder collecting fine mesh plate, ensuring the continuity of the powder drying process.

[0004] The above solution solves the problem of slow drying speed of graphite impregnation and drying in the prior art to a certain extent, but the solution still has many shortcomings, such as: the operation is very inconvenient, it is difficult to achieve rapid processing of the impregnation and drying process, and the production efficiency is affected. Summary of the invention

[0005] The utility model aims to solve the above problems and provides a vacuum dryer for graphite impregnation.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vacuum dryer for graphite impregnation, comprising a heating base, an assembly frame is arranged on the heating base, a vacuum drying frame is arranged on the inner side of the assembly frame in the circumferential direction, an external vacuum air pump is connected to the assembly frame, both sides of the vacuum drying frame are connected to a lifting graphite loading mechanism through a driving mechanism, and a fluid cavity closed by a sealing cover plate is arranged between the bottom of the vacuum drying frame and the inner wall of the assembly frame in the circumferential direction, and sliding push plate assemblies are arranged on both sides of the vacuum drying frame, which can connect the hot oil drying cavity on the inner wall of the lifting graphite loading mechanism and the fluid cavity.

[0007] In the above-mentioned vacuum dryer for graphite impregnation, the upper end of the assembly frame is connected to the vacuum drying frame through a fixed connecting frame, and the two ends of the bottom of the assembly frame are respectively provided with a fluid inlet and a fluid outlet interconnected with the fluid cavity.

[0008] In the above-mentioned vacuum dryer for graphite impregnation, there are at least two fluid inlets and fluid outlets, and one of the fluid inlets is connected to the heating oil tank and the other fluid inlet is connected to the impregnation liquid tank, one of the fluid outlets is connected to the heating oil tank through a heating oil return pipe, and the other is connected to the impregnation liquid tank through an impregnation liquid return pipe.

[0009] In the above-mentioned vacuum dryer for graphite impregnation, the sliding push plate assembly includes a sealing push plug arranged on the outside of the assembly frame, the sealing push plug is connected to an oil guide plate through a connecting push rod, the end of the oil guide plate away from the sealing plug has an oil outlet block, and the oil outlet block is arranged on the inner wall of the vacuum drying frame.

[0010] In the above-mentioned vacuum dryer for graphite impregnation, an oil guide plate slide groove is provided on the sealing cover plate, and an oil outlet hole is provided on the oil guide plate slide groove, and an oil inlet hole corresponding to the oil outlet hole is provided at the bottom of the oil guide plate, and when the oil inlet hole is aligned with the oil outlet hole, the heating oil in the fluid cavity enters the inner cavity of the oil guide plate, and when the oil inlet hole and the oil outlet hole are misaligned, the oil outlet hole is closed by the oil guide plate.

[0011] In the above-mentioned vacuum dryer for graphite impregnation, connecting grooves for inserting corresponding oil outlet blocks are respectively provided on both sides of the lifting graphite loading mechanism, and an oil inlet hole is provided in the connecting groove, and the oil inlet hole is communicated with the above-mentioned hot oil drying chamber, and an oil discharge hole corresponding to the oil inlet hole is provided at the bottom of the oil outlet block.

[0012] In the above-mentioned vacuum dryer for graphite impregnation, the oil inlet hole is an elastic pressure conduction hole.

[0013] In the above-mentioned vacuum dryer for graphite impregnation, the lifting graphite loading mechanism includes a graphite loading frame, a connecting frame is circumferentially provided at the upper end of the graphite loading frame and both sides of the connecting frame are connected to the driving mechanism, a clamping portion is circumferentially provided at the bottom of the graphite loading frame, a limiting groove corresponding to the clamping portion is provided at the bottom of the sealing cover plate, and when the clamping portion and the limiting groove are clamped and limited to each other, the fluid cavity forms a closed state.

[0014] In the above-mentioned vacuum dryer for graphite impregnation, the graphite loading frame is provided with an impregnation fluid inlet hole.

[0015] In the above-mentioned vacuum dryer for graphite impregnation, the driving mechanism includes a driving cylinder, the output end of the driving cylinder is connected to a linkage block, and the linkage block is connected to the graphite loading frame, and lifting stroke limit grooves are provided on both sides of the vacuum drying frame.

[0016] Compared with the existing technology, the advantages of the utility model are: easy operation, more convenient to use, no need to carry out transportation after the graphite impregnation is completed to switch to the drying process, and direct lifting and switching of the fluid can achieve rapid vacuum drying treatment, which not only effectively improves the processing efficiency, but also has a good drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the graphite impregnation in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of graphite vacuum drying in the utility model;

[0020] Figure 4 It is the layout diagram of the sliding push plate assembly of the utility model;

[0021] Figure 5 It is a schematic diagram of the plug-in structure of the oil guide plate and the oil guide plate slideway in the utility model;

[0022] Figure 6 It is a schematic diagram of the graphite loading frame structure in the utility model;

[0023] Figure 7 It is a schematic diagram of the working principle of the utility model;

[0024] In the figure: heating base 1, assembly frame 2, fixed connecting frame 21, fluid inlet 22, fluid outlet 23, heating oil bin 24, impregnation liquid bin 25, heating oil return pipe 26, impregnation liquid return pipe 27, vacuum air pump 3, vacuum drying frame 4, hot oil drying chamber 41, driving mechanism 5, driving cylinder 51, linkage block 52, lifting stroke limit through groove 53, lifting graphite loading mechanism 6, connecting groove 61, oil inlet hole 62, graphite loading frame 63, connecting frame 64, clamping part 65, impregnation fluid inlet hole 66, sealing cover plate 7, fluid chamber 71, oil guide plate slide groove 72, oil outlet hole 73, limit clamping groove 74, sliding push plate assembly 8, sealing push plug 81, connecting push rod 82, oil guide plate 83, oil inlet hole 831, oil outlet block 84, oil discharge hole 841. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1-7As shown, a vacuum dryer for graphite impregnation comprises a heating base 1, an assembly frame 2 is provided on the heating base 1, a vacuum drying frame 4 is provided on the inner side of the assembly frame 2 in the circumferential direction, an external vacuum air pump 3 is connected to the assembly frame 2, both sides of the vacuum drying frame 4 are connected to a lifting graphite loading mechanism 6 through a driving mechanism 5, and a fluid cavity 71 closed by a sealing cover plate 7 is provided between the bottom of the vacuum drying frame 4 and the inner wall of the assembly frame 2 in the circumferential direction, and sliding push plate assemblies 8 capable of connecting the hot oil drying cavity on the inner wall of the lifting graphite loading mechanism 6 and the fluid cavity 71 are provided on both sides of the vacuum drying frame 4.

[0027] The upper end of the assembly frame 2 is connected to the vacuum drying frame 4 via a fixed connection frame 21 , and the two ends of the bottom of the assembly frame 2 are respectively provided with a fluid inlet 22 and a fluid outlet 23 interconnected with the fluid cavity 71 .

[0028] In detail, there are at least two fluid inlets 22 and fluid outlets 23, and one of the fluid inlets 22 is connected to the heating oil tank 24 and the other fluid inlet 22 is connected to the immersion liquid tank 25, one of the fluid outlets 23 is connected to the heating oil tank 24 through the heating oil return pipe 26, and the other is connected to the immersion liquid tank 25 through the immersion liquid return pipe 27.

[0029] The fluid inlet pipe of the fluid inlet 22 , the immersion liquid return pipe 27 , and the heating oil return pipe 26 are all provided with opening and closing valves.

[0030] Preferably, the sliding push plate assembly 8 includes a sealing push plug 81 arranged on the outside of the assembly frame 2, and the sealing push plug 81 is connected to an oil guide plate 83 through a connecting push rod 82. The end of the oil guide plate 83 away from the sealing plug has an oil outlet block 84, and the oil outlet block 84 is arranged on the inner wall of the vacuum drying frame 4.

[0031] One end of the oil guide plate 83 also has a sealing plug. When the sealing push plug 81 is pulled out, the sealing plug seals the inner wall of the assembly frame 2. When the sealing push plug 81 is pushed in, the sealing push plug 81 seals the outer wall of the assembly frame 2.

[0032] Furthermore, an oil guide plate slot 72 is provided on the sealing cover plate 7, and an oil outlet hole 73 is provided on the oil guide plate slot 72. An oil inlet hole 831 corresponding to the oil outlet hole 73 is provided at the bottom of the oil guide plate 83. When the oil inlet hole 831 is aligned with the oil outlet hole 73, the heating oil in the fluid cavity 71 enters the inner cavity of the oil guide plate 83. When the oil inlet hole 831 is misaligned with the oil outlet hole 73, the oil outlet hole 73 is closed by the oil guide plate 83.

[0033] When graphite is impregnated, the oil outlet 73 is closed to prevent the impregnation liquid from entering the hot oil drying chamber;

[0034] When the graphite is drying, the oil outlet 73 is opened to allow the heating oil to enter the hot oil drying chamber for heating and drying.

[0035] Specifically, connecting grooves 61 are provided on both sides of the lifting graphite loading mechanism 6 for the corresponding oil outlet block 84 to be inserted, and an oil inlet hole 62 is provided in the connecting groove 61, and the oil inlet hole 62 is communicated with the above-mentioned hot oil drying chamber, and an oil discharge hole 841 corresponding to the oil inlet hole 62 is provided at the bottom of the oil outlet block 84.

[0036] Furthermore, the oil inlet hole 831 is an elastic pressure conducting hole. When adding heating oil, a high pressure pump is used to increase the introduction pressure to open the oil inlet hole 831. When the graphite loading frame 63 sinks into the fluid chamber 71, the oil inlet hole 831 remains closed.

[0037] More specifically, the lifting graphite loading mechanism 6 includes a graphite loading frame 63, a connecting frame 64 is circumferentially provided at the upper end of the graphite loading frame 63, and both sides of the connecting frame 64 are connected to the driving mechanism 5, a clamping portion 65 is circumferentially provided at the bottom of the graphite loading frame 63, and a limiting groove 74 corresponding to the clamping portion 65 is provided at the bottom of the sealing cover plate 7, and when the clamping portion 65 and the limiting groove 74 are clamped and limited to each other, the fluid cavity 71 forms a closed state.

[0038] When the graphite loading frame 63 rises, the clamping portion 65 and the limiting clamping groove 74 are clamped together to seal the upper end surface of the fluid cavity 71 , thereby preventing the heating oil from entering the fluid cavity 71 and overflowing.

[0039] In addition, the graphite loading frame 63 is provided with an impregnation fluid inlet hole 66 .

[0040] This arrangement enables the impregnation fluid to enter the interior of the graphite loading frame 63 .

[0041] Obviously, the driving mechanism 5 includes a driving cylinder 51 , the output end of the driving cylinder 51 is connected to a linkage block 52 , and the linkage block 52 is connected to the graphite loading frame 63 , and lifting stroke limit grooves 53 are provided on both sides of the vacuum drying frame 4 .

[0042] In summary, the principle of this embodiment is that during impregnation, the sliding push plate assembly 8 is pulled out, the lifting graphite loading mechanism 6 sinks to the fluid chamber 71, the impregnation liquid is injected into the fluid chamber 71, and the heating base 1 is used for heating treatment. After the impregnation is completed, the impregnation liquid is discharged, the lifting graphite loading mechanism 6 rises, the fluid chamber 71 is closed and heating oil is introduced into the fluid chamber 71, the sliding push plate assembly 8 is pushed in, the heating oil in the fluid chamber 71 is introduced into the hot oil drying chamber to heat and dry the impregnated graphite, and the vacuum air pump 3 is used to go in and out for vacuum treatment to improve the evaporation efficiency.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0044] Although this article uses more terms such as heating base 1, assembly frame 2, fixed connecting frame 21, fluid inlet 22, fluid outlet 23, heating oil tank 24, impregnation liquid tank 25, heating oil return pipe 26, impregnation liquid return pipe 27, vacuum air pump 3, vacuum drying frame 4, hot oil drying chamber 41, driving mechanism 5, driving cylinder 51, linkage block 52, lifting stroke limit groove 53, lifting graphite loading mechanism 6, connecting groove 61, oil inlet hole 62, graphite loading frame 63, connecting frame 64, clamping part 65, impregnation fluid inlet hole 66, sealing cover plate 7, fluid cavity 71, oil guide plate slide groove 72, oil outlet hole 73, limit clamping groove 74, sliding push plate assembly 8, sealing push plug 81, connecting push rod 82, oil guide plate 83, oil inlet hole 831, oil outlet block 84, oil discharge hole 841, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as these terms are contrary to the spirit of the present invention.

Claims

1. A vacuum dryer for graphite impregnation, comprising a heating base (1), an assembly frame (2) being provided on the heating base (1), a vacuum drying frame (4) being provided on the inner side of the assembly frame (2), and an external vacuum air pump (3) being connected to the assembly frame (2). It is characterized in that Both sides of the vacuum drying frame (4) are connected to a lifting graphite loading mechanism (6) via a driving mechanism (5), and a fluid cavity (71) sealed by a sealing cover plate (7) is provided between the bottom of the vacuum drying frame (4) and the circumferential inner wall of the assembly frame (2), and sliding push plate assemblies (8) capable of connecting the hot oil drying cavity on the inner wall of the lifting graphite loading mechanism (6) and the fluid cavity (71) are provided on both sides of the vacuum drying frame (4).

2. A vacuum dryer for graphite impregnation according to claim 1, It is characterized in that The upper end of the assembly frame (2) is connected to the vacuum drying frame (4) via a fixed connection frame (21), and the bottom ends of the assembly frame (2) are respectively provided with a fluid inlet (22) and a fluid outlet (23) interconnected with the fluid cavity (71).

3. A vacuum dryer for graphite impregnation according to claim 2, It is characterized in that There are at least two fluid inlets (22) and fluid outlets (23), and one of the fluid inlets (22) is connected to the heating oil tank (24) and the other fluid inlet (22) is connected to the immersion liquid tank (25). One of the fluid outlets (23) is connected to the heating oil tank (24) via a heating oil return pipe (26), and the other is connected to the immersion liquid tank (25) via an immersion liquid return pipe (27).

4. A vacuum dryer for graphite impregnation according to claim 1, It is characterized in that The sliding push plate assembly (8) comprises a sealing push plug (81) arranged outside the assembly frame (2), the sealing push plug (81) is connected to an oil guide plate (83) via a connecting push rod (82), the oil guide plate (83) has an oil outlet block (84) at one end away from the sealing plug, and the oil outlet block (84) is arranged on the inner wall of the vacuum drying frame (4).

5. A vacuum dryer for graphite impregnation according to claim 4, It is characterized in that The sealing cover plate (7) is provided with an oil guide plate slide groove (72), and the oil guide plate slide groove (72) is provided with an oil outlet hole (73). The bottom of the oil guide plate (83) is provided with an oil inlet hole (831) corresponding to the oil outlet hole (73). When the oil inlet hole (831) is aligned with the oil outlet hole (73), the heating oil in the fluid cavity (71) enters the inner cavity of the oil guide plate (83). When the oil inlet hole (831) is misaligned with the oil outlet hole (73), the oil outlet hole (73) is closed by the oil guide plate (83).

6. A vacuum dryer for graphite impregnation according to claim 5, It is characterized in that The lifting graphite loading mechanism (6) is provided with connecting grooves (61) on both sides for corresponding oil outlet blocks (84) to be inserted, and the connecting grooves (61) are provided with oil inlet holes (62), and the oil inlet holes (62) are communicated with the hot oil drying chamber, and the bottom of the oil outlet block (84) is provided with oil discharge holes (841) corresponding to the oil inlet holes (62).

7. A vacuum dryer for graphite impregnation according to claim 6, It is characterized in that The oil inlet hole (831) is an elastic pressure conducting hole.

8. A vacuum dryer for graphite impregnation according to claim 1, It is characterized in that The lifting graphite loading mechanism (6) comprises a graphite loading frame (63), a connecting frame (64) is provided on the upper end of the graphite loading frame (63) in a circumferential direction, and both sides of the connecting frame (64) are connected to the driving mechanism (5), a clamping portion (65) is provided on the bottom of the graphite loading frame (63), a limiting groove (74) corresponding to the clamping portion (65) is provided on the bottom of the sealing cover plate (7), and when the clamping portion (65) and the limiting groove (74) are mutually clamped and limited, the fluid chamber (71) forms a closed state.

9. A vacuum dryer for graphite impregnation according to claim 8, It is characterized in that The graphite loading frame (63) is provided with an impregnation fluid inlet hole (66).

10. A vacuum dryer for graphite impregnation according to claim 8, It is characterized in that The driving mechanism (5) comprises a driving cylinder (51), the output end of the driving cylinder (51) is connected to a linkage block (52), and the linkage block (52) is connected to a graphite loading frame (63), and lifting stroke limit slots (53) are provided on both sides of the vacuum drying frame (4).

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