Expandable graphite expansion furnace for preparing graphite paper

Abstract

The utility model relates to the technical field of graphite paper preparation, in particular to an expandable graphite expansion furnace for preparing graphite paper, which comprises an expansion furnace device body, the bottom end of the expansion furnace device body is fixedly connected with a base, and the surface of the expansion furnace device body is fixedly connected with a high-temperature gas inlet pipe, a discharge pipe and a slag discharge pipe. The high-temperature fuel gas inlet pipe penetrates through a feeding pipe, the feeding pipe is fixedly connected with an electromagnetic vibrator, the surface of the feeding pipe is fixedly connected with a fixing plate, the surface of the fixing plate is fixedly connected with a hopper, the hopper is in threaded connection with a hopper cover, and an inserting plate is inserted into the surface of the fixing plate; the device has the beneficial effects that raw materials in the feeding pipe are vibrated and beaten by arranging the electromagnetic vibrator, the conditions of raw material accumulation and blockage are avoided, the utilization rate of the raw materials is increased, the raw materials are stored and sealed by arranging the hopper and the hopper cover, the feeding amount is controlled and adjusted by arranging the inserting plate, and the circulation efficiency of the feeding pipe is improved; and flying powder in the feeding pipe is prevented from flowing out to pollute the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite paper preparation, in particular to an expandable graphite expansion furnace for preparing graphite paper. Background Art

[0002] Carbon is one of the most common elements in nature, and graphite is one of its existing forms. It is an important non-metallic mineral that belongs to the hexagonal crystal system and has a unique layered structure. Expanded graphite is one of these new carbon materials. Expanded graphite materials are widely used in the environmental, chemical, metallurgical, power machinery, aerospace, and atomic energy industries. Expandable graphite is formed by the oxidation intercalation reaction of natural flake graphite, which inserts compounds between the graphite sheets. At high temperatures, the intercalated compounds are rapidly vaporized by the high heat. The resulting gas will exert a huge tensile force on the graphite sheets, causing the expandable graphite to expand by tens, hundreds, or even thousands of times. This expanded graphite is an important material for pressing graphite paper, which is the basic material for manufacturing various graphite seals. It is widely used in devices such as laptops, flat-panel displays, digital cameras, and mobile phones.

[0003] The Chinese utility model patent with the authorization announcement number "CN211310852U" is specifically "an expandable graphite puffing furnace for preparing graphite paper". Its specific embodiment records that "graphite raw materials are added to the feed pipe and enter the high-temperature gas inlet pipe under the action of gravity. Because the contact area between graphite and high-temperature gas is large and the heat is evenly distributed, the graphite begins to expand in the high-temperature gas inlet pipe. Under the blowing of high-speed gas and hot air, the expanded and incompletely expanded graphite raw materials enter the central tube through the air inlet, so that the incompletely expanded graphite continues to expand in the central tube. Since the density of the expanded graphite is reduced, it moves upward along the central tube under the blowing of hot air, overflows at the upper inlet of the central tube, falls into the spiral sheet under the obstruction of the baffle, and moves rapidly downward along the spiral of the spiral sheet to be discharged from the discharge port at the bottom. Graphite that is not completely expanded or dead insects in the central tube are discharged from the slag discharge port."

[0004] However, in the above-mentioned device, the feed pipe is installed obliquely on the surface of the high-temperature fuel gas inlet pipe, and the expandable graphite is discharged only by gravity. When the expandable graphite enters the feed pipe, it will encounter greater resistance and friction due to the inclination of the pipe, so that the raw materials are accumulated and blocked on the inner wall of the feed pipe, resulting in incomplete expansion of the raw materials and waste of raw materials. In addition, the feed pipe is directly connected to the interior, making it impossible to store and receive the raw materials, and the feed amount cannot be controlled. Flying powder is easily generated during the feeding and reaction process, causing environmental pollution. Utility Model Content

[0005] The purpose of the utility model is to provide an expandable graphite puffing furnace for preparing graphite paper, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an expandable graphite puffing furnace for preparing graphite paper, comprising a puffing furnace device body, a base fixedly connected to the bottom end of the puffing furnace device body, a high-temperature gas inlet pipe and a discharge pipe fixedly connected to the surface of the puffing furnace device body, a slag discharge pipe fixedly connected to the bottom end of the puffing furnace device body, a feed pipe passing through the high-temperature gas inlet pipe, an electromagnetic vibrator fixedly connected to the surface of the feed pipe, a fixed plate fixedly connected to the surface of one end of the feed pipe, a hopper fixedly connected to the surface of the fixed plate, a hopper cover screwed to the hopper, and plug plates inserted on both sides of the surface of the fixed plate.

[0007] Preferably, a group of collars are fixedly connected to the surface of the feed pipe, the collars are annular plate structures, and the electromagnetic vibrator is fixedly connected to the surface of the collars.

[0008] Preferably, the fixed plate has a square plate structure, a circular hole is provided at the center of the fixed plate, the circular hole is connected to the feed pipe, a slot is provided on the surface of the fixed plate, the slot is a square slot, and limiting slots are provided on both sides of the surface of the fixed plate, and the limiting slots are connected to the slot.

[0009] Preferably, the plug board is inserted into the slot, and the plug board has a "T"-shaped plate structure. A handle is fixedly connected to the surface of one end of the plug board, and a rubber pad is fixedly connected to the surface of the end of the plug board away from the handle. A plurality of array-distributed board slots are provided on the surface of the plug board.

[0010] Preferably, the plate groove is a square groove, and the surface of the plate groove is clamped with a limiting block, the limiting block is a square block structure, and a square hole is provided on the surface of the limiting block away from the plate groove. A rubber strip is inserted into the surface of the square hole, and both ends of the rubber strip are fixedly connected to the surface of the fixed plate.

[0011] Preferably, the hopper is connected to the circular hole on the surface of the feed pipe, an external thread is provided on the surface of one end of the hopper away from the feed pipe, and the external thread on the surface of the hopper and the internal thread on the surface of the hopper cover are screwed together.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The expandable graphite puffing furnace for preparing graphite paper proposed by the utility model is provided with an electromagnetic vibrator to achieve vibration and beating of the raw materials in the feed pipe, thereby avoiding the accumulation and blockage of the raw materials and improving the utilization rate of the raw materials. The hopper and the hopper cover are provided to achieve large-scale storage and sealing of the raw materials, thereby improving the working efficiency of the equipment. The adjustable plug plate is provided to achieve control and adjustment of the feed amount, thereby improving the circulation efficiency of the feed pipe and avoiding the outflow of flying powder in the feed pipe and pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a half-section schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a partial schematic diagram of the structure of the utility model;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0018] Figure 5 This is a schematic diagram of the plug board structure of the utility model.

[0019] In the figure: 1. Expansion furnace device body; 2. Base; 3. Discharge pipe; 4. High-temperature gas inlet pipe; 5. Feed pipe; 6. Electromagnetic vibrator; 7. Hopper; 8. Hopper cover; 9. Ring; 10. Fixing plate; 11. Slot; 12. Insert plate; 13. Plate slot; 14. Limit block; 15. Rubber strip; 16. Limit slot; 17. Handle; 18. Rubber pad; 19. Slag discharge pipe. DETAILED DESCRIPTION

[0020] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figures 1 to 2The utility model provides a technical solution: an expandable graphite puffing furnace for preparing graphite paper, comprising an expandable graphite puffing furnace device body 1, a base 2 fixedly connected to the bottom end of the expandable graphite puffing furnace device body 1, a high-temperature gas inlet pipe 4 and a discharge pipe 3 fixedly connected to the surface of the expandable graphite puffing furnace device body 1, a slag discharge pipe 19 fixedly connected to the bottom end of the expandable graphite puffing furnace device body 1, a high-temperature gas inlet pipe 4 passing through a feed pipe 5, one end of the feed pipe 5 fixedly connected to the inside of the expandable graphite puffing furnace device body 1 is communicated with the high-temperature gas inlet pipe 4, the high-temperature gas inlet pipe 4 blows the expandable graphite in the feed pipe 5 into the inside of the expandable graphite puffing furnace device body 1 through high-temperature gas and hot gas for reaction, an electromagnetic vibrator 6 fixedly connected to the surface of the feed pipe 5, the electromagnetic vibrator 6 is connected to an external power supply, the electromagnetic vibrator is composed of an electromagnetic coil, a vibrating sheet, a fixing seat and a controller, etc., and when the electromagnetic coil is energized, it will produce A magnetic field is generated, and the magnetic field attracts the vibration plate. When the electromagnetic coil is powered off, the electromagnetic force disappears. At this time, the vibration plate is quickly returned to its original position due to the rebound force. The rapid rebound action will generate vibration, which in turn causes the feed pipe to vibrate. A fixed plate 10 is fixedly connected to the surface of one end of the feed pipe 5, and a hopper 7 is fixedly connected to the surface of the fixed plate 10. The hopper 7 is screwed with a hopper cover 8, and plug plates 12 are inserted on both sides of the surface of the fixed plate 10. By setting up an electromagnetic vibrator 6, vibration and beating of the raw materials in the feed pipe 5 are achieved, and the accumulation and blockage of raw materials are avoided, thereby improving the utilization rate of raw materials. The hopper 7 and the hopper cover 8 are set to achieve large-scale storage and sealing of raw materials, thereby improving the working efficiency of the equipment. The adjustable plug plate 12 is set to achieve control and adjustment of the feed amount, improve the circulation efficiency of the feed pipe 5, and avoid the outflow of flying powder in the feed pipe 5 and pollution to the environment.

[0023] Example 2

[0024] See also Figure 3 On the basis of Example 1, in order to realize the delivery and storage of expandable graphite, a group of collars 9 are fixedly connected to the surface of the feed pipe 5, and the collars 9 are annular plate structures. The electromagnetic vibrator 6 is fixedly connected to the surface of the collars 9. The fixed plate 10 is a square plate structure. A circular hole is opened at the center of the fixed plate 10, and the circular hole is connected to the feed pipe 5. A slot 11 is opened on the surface of the fixed plate 10, and the slot 11 is a square slot. Limiting grooves 16 are opened on both sides of the surface of the fixed plate 10, and the limiting grooves 16 are connected to the slot 11. The plug-in plate 12 is inserted into the slot 11. The plug-in plate 12 has a "T"-shaped plate structure. A handle 17 is fixedly connected to the surface of the plug-in plate 12, and a rubber pad 18 is fixedly connected to the surface of the plug-in plate 12 away from the handle 17. A plurality of plate slots 13 distributed in an array are opened on the surface of the plug-in plate 12.

[0025] An electromagnetic vibrator 6 is provided on the surface of the feed pipe 5. When the electromagnetic vibrator 6 is powered on, it can vibrate the inner wall of the feed pipe 5 to promote the smooth flow of expandable graphite in the pipe and avoid blockage and accumulation in the pipe. Insert plates 12 are provided on both sides of the fixed plate 10. The penetration area between the circular hole and the feed pipe 5 can be adjusted by pulling the insert plates 12, thereby adjusting the feed amount in the feed pipe 5 and avoiding congestion of expandable graphite in the feed pipe 5, which may lead to incomplete expansion of the expandable graphite. The rubber pad 18 is provided to improve the sealing between the insert plates 12.

[0026] Example 3

[0027] See also Figures 4 and 5 On the basis of the second embodiment, in order to realize the flow control of the expandable graphite in the feed pipe 5, the plate groove 13 is a square groove, and the surface of the plate groove 13 is clamped with a limit block 14. The limit block 14 has a square block structure. The limit block 14 is provided with a square hole on the surface of the end away from the plate groove 13. A rubber strip 15 is inserted into the surface of the square hole. The two ends of the rubber strip 15 are fixedly connected to the surface of the fixed plate 10. The hopper 7 is connected with the circular hole on the surface of the feed pipe 5. The surface of the end of the hopper 7 away from the feed pipe 5 is provided with an external thread. The external thread on the surface of the hopper 7 is screwed with the internal thread on the surface of the hopper cover 8.

[0028] A limit block 14 is provided and clamped in the plate groove 13 in order to limit the insert plate 12 and prevent the insert plate 12 from shifting due to continuous feeding and vibration. A plurality of array distribution plate grooves 13 are provided to limit the insert plate 12 at different positions. When the limit block 14 is clamped in the plate groove 13, the rubber strip 15 is in its original state. When the limit block 14 and the plate groove 13 are separated by hand, the rubber strip 15 is in a stretched state, driving the limit block 14 to have a tendency to rebound to one side of the plate groove 13. The handle 17 is provided to facilitate pushing and pulling the insert plate 12. The bucket cover 8 is provided to isolate the expandable graphite stored in the hopper 7 from the external environment to prevent the expandable graphite from being contaminated.

[0029] During actual use, first manually move the limit block 14 to separate from the plate slot 13, then hold the handle 17 to push and pull the insert plate 12, and after adjusting to the appropriate position, re-engage the limit block 14 in the plate slot 13, then pour the expandable graphite into the hopper 7, and turn on the electromagnetic vibrator 6. The expandable graphite passes through the circular hole of the fixed plate 10 and reaches the feed pipe 5. Through the vibration of the electromagnetic vibrator 6, all the expandable graphite attached to the inner wall of the feed pipe 5 is sent into the high-temperature gas inlet pipe 4. The high-temperature gas and hot air in the high-temperature gas inlet pipe 4 send the expandable graphite into the interior of the expansion furnace device body 1 and react. Finally, the fully expanded expandable graphite is taken out from the discharge pipe 3, and the incompletely expanded expandable graphite is discharged from the slag discharge pipe 19.

[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. A graphite puffing furnace for preparing graphite paper, comprising a puffing furnace device body (1), the bottom end of the puffing furnace device body (1) is fixedly connected to a base (2), characterized in that: The surface of the expansion furnace device body (1) is fixedly connected to a high-temperature gas inlet pipe (4) and a discharge pipe (3); the bottom end of the expansion furnace device body (1) is fixedly connected to a slag discharge pipe (19); the high-temperature gas inlet pipe (4) passes through a feed pipe (5); the surface of the feed pipe (5) is fixedly connected to an electromagnetic vibrator (6); one end surface of the feed pipe (5) is fixedly connected to a fixed plate (10); the surface of the fixed plate (10) is fixedly connected to a hopper (7); the hopper (7) is screwed with a hopper cover (8); and plug plates (12) are plugged into both sides of the surface of the fixed plate (10).

2. The expandable graphite expansion furnace for preparing graphite paper according to claim 1, characterized in that: A group of collars (9) are fixedly connected to the surface of the feed pipe (5), and the collars (9) are annular plate structures. The electromagnetic vibrator (6) is fixedly connected to the surface of the collars (9).

3. The expandable graphite expansion furnace for preparing graphite paper according to claim 1, characterized in that: The fixing plate (10) is in a square plate-like structure. A circular hole is provided at the center of the fixing plate (10), and the circular hole is communicated with the feed pipe (5). A slot (11) is provided on the surface of the fixing plate (10), and the slot (11) is in a square groove. Limiting grooves (16) are provided on both sides of the surface of the fixing plate (10), and the limiting grooves (16) are communicated with the slot (11).

4. The expandable graphite expansion furnace for preparing graphite paper according to claim 1, characterized in that: The plug board (12) is plugged into the slot (11). The plug board (12) is a T-shaped plate structure. A handle (17) is fixedly connected to one end surface of the plug board (12). A rubber pad (18) is fixedly connected to one end surface of the plug board (12) away from the handle (17). A plurality of plate slots (13) distributed in an array are provided on the surface of the plug board (12).

5. The expandable graphite expansion furnace for preparing graphite paper according to claim 4, characterized in that: The plate groove (13) is a square groove, and a limiting block (14) is clamped on the surface of the plate groove (13). The limiting block (14) is a square block structure. A square hole is provided on the surface of one end of the limiting block (14) away from the plate groove (13). A rubber strip (15) is inserted into the surface of the square hole. Both ends of the rubber strip (15) are fixedly connected to the surface of the fixed plate (10).

6. The expandable graphite expansion furnace for preparing graphite paper according to claim 1, characterized in that: The hopper (7) is connected to the circular hole on the surface of the feed pipe (5). An external thread is provided on the surface of one end of the hopper (7) away from the feed pipe (5). The external thread on the surface of the hopper (7) and the internal thread on the surface of the hopper cover (8) are screwed together.

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