Preparation equipment of expandable graphite

Abstract

The utility model relates to the field of graphite processing, and particularly discloses expandable graphite preparation equipment which comprises a hopper, the conveying cylinder is used for conveying expandable graphite and is horizontally arranged, and the lower end of the hopper is communicated with the end part of the conveying cylinder; the heating furnace is coaxially and fixedly mounted on the middle part of the conveying cylinder; the collecting barrel is detachably installed at the end, away from the hopper, of the conveying barrel. According to the scheme, the heating furnace heats expanded graphite in the conveying barrel in sequence, so that the expanded graphite expands in the conveying process, the expanded graphite can be continuously heated and expanded, the collecting barrel can automatically collect the expanded graphite, and the expanded graphite can be conveyed and collected in the conveying process; and the expansion processing efficiency of the expanded graphite can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite processing, in particular to a preparation device for expandable graphite. Background Art

[0002] Expandable graphite is a graphite material with a special structure. It is porous and has a honeycomb-like appearance and excellent thermal conductivity. At high temperatures, expandable graphite can expand into large flakes or sheet structures. It is also a new functional carbon material with broad application prospects. Its unique structure and properties make it have important application value in many fields.

[0003] During the expansion production process of expandable graphite, the entire expandable graphite is generally placed in a high-temperature furnace and heated to reach the expansion temperature. However, the expandable graphite in the high-temperature furnace is often placed statically while heated, and the expandable graphite cannot be stirred, so the heating time needs to be extended to achieve the purpose of full expansion. During the expansion process, the expandable graphite needs to be placed in batches and then removed in batches. The removal and placement process is time-consuming and labor-intensive, affecting the expansion efficiency of the expandable graphite. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a device for preparing expandable graphite to solve the problem that the expandable graphite in a high-temperature furnace is mostly placed statically for heating, and the heating time needs to be extended to achieve the purpose of full expansion, thereby reducing the expansion efficiency of the expandable graphite.

[0005] In order to achieve the above object, the basic scheme of the utility model is as follows: a preparation device for expandable graphite, comprising:

[0006] hopper;

[0007] A conveying cylinder for conveying expandable graphite, the conveying cylinder is arranged horizontally, and the lower end of the hopper is connected to the end of the conveying cylinder;

[0008] The heating furnace is coaxially fixedly installed on the middle part of the conveying cylinder;

[0009] The collecting cylinder is detachably mounted on the end of the conveying cylinder away from the hopper.

[0010] The technical principle of the utility model is as follows: when expanding expanded graphite, a large amount of graphite to be expanded is placed in a hopper to realize batch addition and expansion processing of the expanded graphite; the conveying cylinder and the heating furnace are opened, and the conveying cylinder sequentially conveys the expanded graphite. When it moves to the heating furnace, the heating furnace heats the expanded graphite in the conveying cylinder in sequence, so that the expanded graphite expands during the conveying process, and the expanded graphite can be continuously heated and expanded; when the expanded expanded graphite is transferred to the collecting cylinder, the collecting cylinder can automatically collect the expanded graphite, and the expanded graphite can be transmitted and collected during the conveying process, which can improve the expansion processing efficiency of the expanded graphite.

[0011] Furthermore, it also includes:

[0012] Conveying shaft, the conveying shaft is rotatably installed in the conveying cylinder;

[0013] A spiral blade is coaxially fixedly mounted on the conveying shaft, the spiral blade is located in the conveying cylinder, and the outer wall of the spiral blade is in contact with the inner wall of the conveying cylinder, and one end of the spiral blade is opposite to the lower end of the hopper;

[0014] The motor drives the conveying shaft to rotate, and the motor is fixedly connected to one end of the conveying cylinder.

[0015] With the above arrangement, when the expanded graphite is conveyed, the motor is started, the motor drives the conveying shaft and the spiral blade to rotate, and the spiral blade drives the expanded graphite to rotate toward the heating furnace. When the expanded graphite moves to the heating furnace for expansion processing, the spiral blade continues to rotate to convey the expanded graphite, and the expanded graphite is stirred while being conveyed, so that the expanded graphite is heated evenly, which can improve the efficiency and uniformity of the expansion processing of the expanded graphite.

[0016] Furthermore, a connecting pipe is provided between the hopper and the conveying cylinder, and a connecting switch valve for controlling whether the hopper and the conveying cylinder are connected is installed on the connecting pipe.

[0017] Through the above arrangement, the communication switch valve can control the communication between the hopper and the conveying cylinder, and further control the amount of expanded graphite entering the conveying cylinder, so as to facilitate the expansion processing of the conveying cylinder in sequence.

[0018] Furthermore, a cover plate that can be sealed with the hopper is provided on the top of the hopper.

[0019] Through the above arrangement, the cover plate can seal the hopper, so that the expanded graphite in the hopper is not easy to fly away, and the transportation of the expanded graphite is more stable.

[0020] Furthermore, an air inlet pipe for supplying protective gas is provided on the cover plate, and an air outlet valve is provided on the collecting tube.

[0021] Through the above arrangement, when the protective gas is delivered to the preparation equipment, the protective gas is delivered into the preparation equipment through the air inlet pipe, the connecting switch valve and the air outlet valve in the preparation equipment are opened to realize the delivery of the protective gas (argon gas), and the air in the preparation equipment is discharged through the air outlet valve to realize the delivery of the protective gas in the preparation equipment, so that the subsequent expanded graphite is protected by the protective gas during the expansion process, making the processed expanded graphite purer.

[0022] Furthermore, the air outlet valve is an electronic switch valve, and the air outlet valve is located at the lower side of the collecting cylinder.

[0023] Through the above arrangement, it is easier to control the opening and closing timing of the air outlet valve, the delivery timing of the protective gas can be controlled, and the air can flow out through the air outlet valve at the lower side of the collecting cylinder, so that the preparation equipment is fully filled with protective gas.

[0024] Furthermore, a connecting hole is formed at the connection between the side wall of the conveying cylinder and the collecting cylinder, and a central angle of a longitudinal section of the connecting hole is 150-180°.

[0025] Through the above arrangement, the expanded graphite delivered to the communicating hole can fall into the collecting cylinder from the communicating hole more comprehensively, making the collection of the expanded graphite more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of an axial side direction of an apparatus for preparing expandable graphite in an embodiment of the present utility model.

[0027] Figure 2 This is a longitudinal cross-sectional view of an apparatus for preparing expandable graphite in an embodiment of the present utility model.

[0028] In the above drawings: hopper 10, connecting pipe 101, connecting switch valve 102, motor 20, conveying cylinder 201, conveying shaft 202, spiral blade 203, connecting hole 204, heating furnace 30, collecting cylinder 40, air outlet valve 401, cover plate 50, air inlet pipe 501. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0030] This embodiment is basically as Figure 1 and Figure 2 As shown, an embodiment of the utility model proposes an apparatus for preparing expandable graphite, comprising a hopper, a conveying cylinder for conveying expandable graphite, a heating furnace, a collecting cylinder, a conveying shaft, a spiral blade coaxially fixedly mounted on the conveying shaft, and a motor for driving the conveying shaft to rotate. The conveying cylinder is horizontally arranged, and the lower end of the hopper is connected to the right end of the conveying cylinder.

[0031] like Figure 2As shown, the heating furnace is coaxially fixed to the middle part of the conveying cylinder by bolts, the inner wall of the heating furnace and the inner wall of the conveying cylinder are smoothly transitioned, and the collecting cylinder is detachably mounted on the left end of the conveying cylinder by screws. The connection between the side wall of the conveying cylinder and the collecting cylinder is an arc-shaped connecting hole, and the central angle of the longitudinal section at the connecting hole is 180°.

[0032] like Figure 2 As shown, the motor is fixedly connected to one end of the conveying cylinder by bolts, and the conveying shaft is rotatably installed in the conveying cylinder; the spiral blade is located in the conveying cylinder, and the outer wall of the spiral blade is in contact with the inner wall of the conveying cylinder, and the right end of the spiral blade is opposite to the lower end of the hopper;

[0033] like Figure 1 and Figure 2 As shown, a connecting pipe is provided between the hopper and the conveying cylinder, and a connecting switch valve is installed on the connecting pipe to control whether the hopper and the conveying cylinder are connected. The connecting switch valve is an electronic switch valve.

[0034] At the same time Figure 1 and Figure 2 As shown, a cover plate which can be sealed with the hopper is provided on the top of the hopper, an air inlet pipe for supplying protective gas is provided on the cover plate, an air outlet valve is provided on the collecting tube, the air outlet valve is an electronic switch valve, and the air outlet valve is located on the lower side of the collecting tube.

[0035] When the expandable graphite preparation device of this embodiment is in use, the cover plate on the hopper is opened, and a large amount of graphite to be expanded is placed into the hopper to achieve batch addition and expansion processing of the expandable graphite.

[0036] Install the cover plate to the upper end of the hopper again, open the air intake of the protective gas, and use the air intake pipe to transport the protective gas into the preparation equipment. Open the connecting switch valve and the air outlet valve in the preparation equipment to realize the transportation of the protective gas (argon). The air in the preparation equipment is discharged through the air outlet valve to realize the transportation of the protective gas in the preparation equipment, so that the subsequent expanded graphite is protected by the protective gas during the expansion process, making the processed expanded graphite purer.

[0037] After the shielding gas is conveyed for 1-2 minutes, the heating furnace and the motor are turned on. During the shielding gas conveying process, a small amount of expanded graphite is also synchronously conveyed into the conveying cylinder. The motor drives the conveying shaft and the spiral blade to rotate, and the spiral blade drives the expanded graphite to rotate toward the heating furnace. The heating furnace heats and expands the expanded graphite, causing it to expand during the conveying process. During the expansion process, the spiral blade and the conveying shaft can also stir and convey the expanded graphite, so that the expanded graphite is heated evenly, which can improve the expansion processing efficiency and uniformity of the expanded graphite.

[0038] The expanded graphite is transported to the connecting hole by the conveying shaft and spiral blades, and the expanded graphite automatically falls vertically and is collected into the collecting cylinder, which makes the collection of the expanded graphite fast.

[0039] In the above process, a large batch of expanded graphite can be continuously expanded, and the expanded graphite can be stirred, transported and collected during the transportation process, which can improve the expansion processing efficiency of the expanded graphite.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A preparation device for expandable graphite, characterized in that, include: hopper; A conveying cylinder for conveying expandable graphite, wherein the conveying cylinder is arranged horizontally, and the lower end of the hopper is connected to the end of the conveying cylinder; A heating furnace, the heating furnace is coaxially fixedly mounted on the middle portion of the conveying cylinder; The collecting cylinder is detachably mounted on one end of the conveying cylinder away from the hopper.

2. The apparatus for preparing expandable graphite according to claim 1, wherein: Also includes: A conveying shaft, the conveying shaft being rotatably mounted in the conveying cylinder; A spiral blade is coaxially fixedly mounted on the conveying shaft, the spiral blade is located in the conveying cylinder, and the outer wall of the spiral blade is in contact with the inner wall of the conveying cylinder, and one end of the spiral blade is opposite to the lower end of the hopper; An electric motor drives the conveying shaft to rotate, and the electric motor is fixedly connected to one end of the conveying cylinder.

3. The preparation device of expandable graphite according to claim 2, characterized in that: A connecting pipe is provided between the hopper and the conveying cylinder, and a connecting switch valve for controlling whether the hopper and the conveying cylinder are connected is installed on the connecting pipe.

4. The apparatus for preparing expandable graphite according to any one of claims 1 to 3, wherein: A cover plate which can be sealed with the hopper is provided on the top of the hopper.

5. The apparatus for preparing expandable graphite according to claim 4, wherein: An air inlet pipe for supplying protective gas is provided on the cover plate, and an air outlet valve is provided on the collecting cylinder.

6. The apparatus for preparing expandable graphite according to claim 5, wherein: The air outlet valve is an electronic switch valve, and the air outlet valve is located at the lower side of the collecting cylinder.

7. The apparatus for preparing expandable graphite according to claim 1, wherein: The connection between the side wall of the conveying cylinder and the collecting cylinder is an arc-shaped connecting hole, and the central angle of the longitudinal section of the connecting hole is 150-180 degrees.

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