Heating device for graphite purification furnace

Abstract

The utility model discloses a heating device for a graphite purification furnace, and belongs to the technical field of graphite purification. A heating device for a graphite purification furnace comprises a purification furnace body which is fixedly provided with a furnace cover, and further comprises an electromagnetic heater which is fixedly arranged in the purification furnace body; the upper end and the lower end of the purification barrel are through, the purification barrel is fixedly installed on the inner side of the electromagnetic heater, a graphite runner is arranged between the purification barrel and the electromagnetic heater, and the top and the bottom of the graphite runner are both communicated with the purification barrel; the mounting pipe is rotationally arranged in the purification barrel, and a stirring pipe is fixedly mounted on the side wall of the mounting pipe; electric energy can be rapidly and efficiently converted into heat energy in an electromagnetic heating mode, the heat energy directly acts on the interior of graphite powder, loss of the energy in the transmission process is reduced, meanwhile, liquidity and dispersity of graphite powder particles are enhanced through circulating air flow, heat can be transmitted to a whole graphite powder pile more rapidly, and the graphite powder pile is prevented from being damaged. And the heating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite purification, in particular to a heating device for a graphite purification furnace. Background Art

[0002] When the graphite powder is purified by physical methods, it is necessary to fill the purification chamber with protective gas and purification gas, and then heat and purify it.

[0003] In the prior art, the heating device used for heating and purifying graphite powder generally adopts electromagnetic heating. When the graphite powder is in the alternating magnetic field of the electromagnetic heating system, alternating eddy currents will be generated inside the graphite powder. The eddy currents will cause the carriers inside the conductor to move irregularly at high speed. The collision and friction between the carriers will generate a large amount of heat energy, thereby causing the graphite itself to generate heat, thereby achieving the purpose of heating. However, there is a lot of graphite powder in the purification furnace body. During purification, a stirring rod is generally used to stir and drive the graphite powder to flow for heating. However, the fluidity of this heated graphite powder is poor. Since the distance between the graphite powder particles is small and the fluidity is poor, the eddy currents are unevenly distributed in the graphite powder, resulting in low heating efficiency of the graphite powder. In order to solve the above problems, a heating device for a graphite purification furnace is proposed herein. Utility Model Content

[0004] The utility model is a heating device for a graphite purification furnace, which is proposed to solve the problem of low heating efficiency of graphite powder in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heating device for a graphite purification furnace comprises a purification furnace body, on which a furnace cover is fixedly installed, and further comprises: an electromagnetic heater fixedly installed in the purification furnace body; a purification cylinder penetrating at both ends, fixedly installed on the inner side of the electromagnetic heater, a graphite flow channel is arranged between the purification cylinder and the electromagnetic heater, and the top and bottom of the graphite flow channel are both connected to the purification cylinder; a mounting tube rotatably arranged in the purification cylinder, a stirring tube is fixedly installed on the side wall of the mounting tube, a scraper plate is fixedly installed on the mounting tube, and upwardly inclined spray holes are arranged on the scraper plate and the side wall of the stirring tube, and the spray holes are connected to the mounting tube; a gas supply component is arranged in the purification furnace body and is used to supply gas to the mounting tube.

[0007] As a preferred embodiment of the utility model: an installation cavity is opened in the purification furnace body, a installation tube is fixedly installed in the installation cavity, the bottom of the installation tube extends into the installation tube and is fixedly connected with a blade plate, and the installation tube is rotatably connected to the installation tube.

[0008] As a preferred embodiment of the utility model: an airway is arranged in the purification furnace body, a material guide cover is fixedly installed on the furnace cover, the material guide cover is located above the graphite flow channel and has air holes, and the air holes are connected to the airway.

[0009] As a preferred embodiment of the utility model: the air supply assembly includes an air pump fixedly installed in the installation cavity, the input end of the air pump is fixedly connected to the first air pipe, the first air pipe is provided with a first control valve, the input end of the first air pipe is connected to the airway, the output end of the air pump is fixedly installed with a third air pipe, the output end of the third air pipe is connected to the installation tube, the exhaust end of the installation tube is fixedly installed with a fourth air pipe, and the fourth air pipe is connected to the installation tube through a rotating joint assembly.

[0010] As a preferred embodiment of the utility model: the rotating joint assembly includes an outer ring fixedly connected to the fourth air pipe and an inner ring fixedly installed on the mounting tube, the inner ring is rotatably connected to the outer ring, and a connecting through hole is opened on the inner ring and the mounting tube.

[0011] As a preferred embodiment of the present utility model: a second air pipe is fixedly mounted on the side wall of the first air pipe, and a second control valve is fixedly mounted on the second air pipe.

[0012] As a preferred embodiment of the utility model: an annular molecular sieve is fixedly mounted on the top of the material guide cover, and a protrusion inserted into the air hole is arranged at the bottom of the molecular sieve.

[0013] As a preferred embodiment of the present invention: the angle between the axis of the spray hole and the horizontal plane is 35°-75°.

[0014] Compared with the prior art, the utility model provides a heating device for a graphite purification furnace, which has the following beneficial effects:

[0015] 1. The heating device for the graphite purification furnace directly heats the graphite powder through an electromagnetic heater, and combines with a gas jet stirring system to keep the graphite powder particles in a flowing and dispersed state during the heating process, thereby achieving a more uniform heating effect. This avoids the problem of uneven heating caused by graphite powder accumulation or uneven eddy current distribution in the traditional method. At the same time, the electromagnetic heating method can quickly and efficiently convert electrical energy into thermal energy, which directly acts on the inside of the graphite powder, reducing the loss of energy during the transfer process. At the same time, due to the enhanced fluidity and dispersibility of the graphite powder particles, the heat can be transferred to the entire graphite powder pile more quickly, thereby improving the heating efficiency.

[0016] 2. The heating device for the graphite purification furnace realizes efficient circulation of gas in the purification furnace body by arranging the airway, the material guide cover and the air holes thereon, and the air pump, the first air pipe, the second air pipe, the third air pipe and the fourth air pipe in the gas supply assembly. This circulation not only promotes the uniform heating and purification of graphite powder, but also filters and purifies the circulating gas through the molecular sieve, removes impurities generated in the purification process, and ensures the cleanliness of the circulating gas;

[0017] 3. The heating device for the graphite purification furnace uses the gas output by the air pump to drive the blades and the mounting tube to rotate, thereby driving the stirring tube and the scraper plate to stir the graphite powder; this stirring method not only improves the fluidity of the graphite powder, but also further promotes the dispersion of the graphite powder through the spiral rising airflow ejected from the nozzle, thereby increasing the distance between the graphite powder particles and making the heating and purification effects more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a graphite purification furnace proposed by the utility model;

[0019] Figure 2 A cross-sectional view of a heating device for a graphite purification furnace proposed in the utility model Figure 1 ;

[0020] Figure 3 A cross-sectional view of a heating device for a graphite purification furnace proposed in the utility model Figure 2 ;

[0021] Figure 4 This is a partially enlarged cross-sectional view of a heating device for a graphite purification furnace proposed by the utility model.

[0022] In the figure: 1, purification furnace body; 2, furnace cover; 3, purification cylinder; 4, electromagnetic heater; 5, material guide cover; 6, graphite flow channel; 7, air hole; 8, molecular sieve; 9, air channel; 10, first air pipe; 11, air pump; 12, second air pipe; 13, first control valve; 14, second control valve; 15, third air pipe; 16, mounting cylinder; 17, mounting pipe; 18, blade; 19, fourth air pipe; 20, outer ring; 21, inner ring; 22, through hole; 23, scraper plate; 24, spray hole; 25, stirring pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Example: Refer to Figure 1-Figure 4 A heating device for a graphite purification furnace comprises a purification furnace body 1, a furnace cover 2 is fixedly installed on the purification furnace body 1, and the furnace cover 2 and the purification furnace body 1 can be fixed by bolts, and also comprises: an electromagnetic heater 4, which is fixedly installed in the purification furnace body 1; a purification cylinder 3 penetrating at both ends, which is fixedly installed on the inner side of the electromagnetic heater 4, a graphite flow channel 6 is arranged between the purification cylinder 3 and the electromagnetic heater 4, and the top and bottom of the graphite flow channel 6 are both connected to the purification cylinder 3; a mounting tube 17 rotatably arranged in the purification cylinder 3, a stirring tube 25 is fixedly installed on the side wall of the mounting tube 17, and a stirring tube 25 is arranged on the side wall of the mounting tube 17. A scraper plate 23 is fixedly mounted on the mounting tube 17, and upwardly inclined spray holes 24 are arranged on the side walls of the scraper plate 23 and the stirring tube 25, and the spray holes 24 are connected to the mounting tube 17, and the angle between the axis of the spray holes 24 and the horizontal plane is 35°-75°; a gas supply component is arranged in the purification furnace body 1, and is used to supply gas to the mounting tube 17, and a mounting cavity is opened in the purification furnace body 1, and a mounting cylinder 16 is fixedly mounted in the mounting cavity, and the bottom of the mounting tube 17 extends into the mounting cylinder 16 and is fixedly connected to a blade plate 18, and the mounting tube 17 is rotatably connected to the mounting cylinder 16.

[0026] When in use, first add graphite powder into the purification cylinder 3, then evacuate, introduce protective gas and purification gas after evacuation, and then heat it through the electromagnetic heating system. During the heating process, a mixed gas of protective gas and purification gas is sprayed into the purification cylinder 3 through the nozzle 24, and the multi-layer mixed gas blown out by the multi-layer stirring tube 25 drives the graphite powder to float upward, so that the graphite powder in the entire purification cylinder 3 floats as a whole, and the distance between the graphite powder particles is increased, and the graphite powder is made to flow from the top of the purification cylinder 3 into the graphite flow channel 6, and then enter the purification cylinder 3 through the bottom of the graphite flow channel 6, and then move upward through the bottom of the purification cylinder 3, so that the graphite moves in the inner circle of the electromagnetic heater 4.

[0027] To sum up, in this embodiment, the graphite powder is directly heated by the electromagnetic heater 4, and combined with the gas jet stirring system, the graphite powder particles are kept in a flowing and dispersed state during the heating process, thereby achieving a more uniform heating effect. This avoids the problem of uneven heating caused by graphite powder accumulation or uneven eddy current distribution in traditional methods. At the same time, the electromagnetic heating method can quickly and efficiently convert electrical energy into thermal energy, which directly acts on the inside of the graphite powder, reducing the loss of energy during the transfer process. At the same time, due to the enhanced fluidity and dispersibility of the graphite powder particles, the heat can be transferred to the entire graphite powder pile more quickly, thereby improving the heating efficiency.

[0028] Reference Figure 2-Figure 4 The purification furnace body 1 is provided with an air passage 9, a material guide cover 5 is fixedly installed on the furnace cover 2, and the material guide cover 5 is provided with an air hole 7 above the graphite flow channel 6, and the air hole 7 is connected with the air passage 9. The air supply component includes an air pump 11 fixedly installed in the installation cavity, and the input end of the air pump 11 is fixedly connected with a first air pipe 10, and the first air pipe 10 is provided with a first control valve 13, and the input end of the first air pipe 10 is connected with the air passage 9, and the output end of the air pump 11 is fixedly installed with a third air pipe 15, and the output end of the third air pipe 15 is connected with the installation cylinder 16, and the exhaust end of the installation cylinder 16 is fixedly installed with The fourth air pipe 19 is connected to the mounting tube 17 through a rotating joint assembly, the rotating joint assembly includes an outer ring 20 fixedly connected to the fourth air pipe 19 and an inner ring 21 fixedly mounted on the mounting tube 17, the inner ring 21 is rotatably connected to the outer ring 20, a through hole 22 communicating with the mounting tube 17 is provided on the inner ring 21, the second air pipe 12 is fixedly mounted on the side wall of the first air pipe 10, the second control valve 14 is fixedly mounted on the second air pipe 12, an annular molecular sieve 8 is fixedly mounted on the top of the material guide cover 5, and a protrusion inserted into the air hole 7 is provided at the bottom of the molecular sieve 8.

[0029] During ventilation, the first control valve 13 is closed, the second control valve 14 is opened, and the air pump 11 is started. The external protective gas and purification gas are extracted through the air pump 11. When the protective gas and purification gas in the purification furnace body 1 meet the requirements, the second control valve 14 is closed and the first control valve 13 is opened, and the air pump 11 is started to circulate the gas inside the purification furnace body 1.

[0030] When the gas flows, the gas output by the air pump 11 drives the blade 18 to rotate when passing through the mounting tube 16, and the blade 18 drives the mounting tube 17 to rotate, and the mounting tube 17 drives the stirring tube 25 and the scraper plate 23 to rotate, stirring the graphite powder and making the airflow ejected from the nozzle 24 rise in a spiral shape, further promoting the dispersion of the graphite powder, and at the same time making it convenient to scrape the graphite powder at the bottom of the graphite flow channel 6 into the purification tube 3.

[0031] After the gas passes through the mounting tube 16, the gas enters the sealed cavity formed by the outer ring 20 and the inner ring 21 through the fourth air pipe 19, and then enters the mounting tube 17 through the through hole 22. The gas is split in the mounting tube 17 and sprayed out from the spray hole 24. Then the gas and graphite powder are filtered and separated by the molecular sieve 8. The graphite powder falls into the graphite flow channel 6 by gravity, and the gas passes through the molecular sieve 8 into the air channel 9, and then is sucked into the first air pipe 10, thereby realizing gas circulation. During the gas circulation process, the micropores in the molecular sieve 8 can be used to adsorb impurities produced by purification, thereby keeping the circulating gas clean.

[0032] In summary, by providing the air channel 9, the material guide cover 5 and the air holes 7 thereon, and the air pump 11, the first air pipe 10, the second air pipe 12, the third air pipe 15 and the fourth air pipe 19 in the air supply assembly, efficient circulation of the gas in the purification furnace body 1 is achieved. This circulation not only promotes uniform heating and purification of the graphite powder, but also filters and purifies the circulating gas through the molecular sieve 8, removes impurities generated during the purification process, and ensures the cleanliness of the circulating gas.

[0033] The gas output by the air pump 11 drives the blade 18 and the mounting tube 17 to rotate, thereby driving the stirring tube 25 and the scraper plate 23 to stir the graphite powder; this stirring method not only improves the fluidity of the graphite powder, but also further promotes the dispersion of the graphite powder through the spiral rising airflow ejected from the nozzle 24, thereby increasing the distance between the graphite powder particles and making the heating and purification effects more uniform.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heating device for a graphite purification furnace, comprising a purification furnace body (1), wherein the purification furnace body (1) is fixedly mounted with a furnace cover (2), characterized in that: Also includes: An electromagnetic heater (4) is fixedly installed in the purification furnace body (1); A purification cylinder (3) having upper and lower ends passing through is fixedly mounted on the inner side of the electromagnetic heater (4); a graphite flow channel (6) is provided between the purification cylinder (3) and the electromagnetic heater (4); the top and bottom of the graphite flow channel (6) are both connected to the purification cylinder (3); A mounting tube (17) is rotatably arranged in the purification cylinder (3), a stirring tube (25) is fixedly installed on the side wall of the mounting tube (17), a scraper plate (23) is fixedly installed on the mounting tube (17), and upwardly inclined spray holes (24) are arranged on the side walls of the scraper plate (23) and the stirring tube (25), and the spray holes (24) are communicated with the mounting tube (17); A gas supply component is arranged in the purification furnace body (1) and is used for supplying gas into the installation pipe (17).

2. A heating device for a graphite purification furnace according to claim 1, characterized in that: The purification furnace body (1) is provided with an installation cavity, in which an installation tube (16) is fixedly installed, the bottom of the installation tube (17) extends into the installation tube (16) and is fixedly connected with a blade plate (18), and the installation tube (17) is rotatably connected to the installation tube (16).

3. A heating device for a graphite purification furnace according to claim 2, characterized in that: An air passage (9) is arranged in the purification furnace body (1), a material guide cover (5) is fixedly mounted on the furnace cover (2), and the material guide cover (5) is provided with an air hole (7) above the graphite flow channel (6), and the air hole (7) is communicated with the air passage (9).

4. A heating device for a graphite purification furnace according to claim 3, characterized in that: The air supply assembly comprises an air pump (11) fixedly mounted in the mounting cavity, the input end of the air pump (11) being fixedly connected to a first air pipe (10), the first air pipe (10) being provided with a first control valve (13), the input end of the first air pipe (10) being connected to an airway (9), the output end of the air pump (11) being fixedly mounted to a third air pipe (15), the output end of the third air pipe (15) being connected to a mounting tube (16), the exhaust end of the mounting tube (16) being fixedly mounted to a fourth air pipe (19), the fourth air pipe (19) being connected to a mounting tube (17) via a rotating joint assembly.

5. A heating device for a graphite purification furnace according to claim 4, characterized in that: The rotary joint assembly comprises an outer ring (20) fixedly connected to the fourth air pipe (19) and an inner ring (21) fixedly mounted on the mounting tube (17); the inner ring (21) is rotatably connected to the outer ring (20); and a through hole (22) communicating with the mounting tube (17) is provided on the inner ring (21).

6. A heating device for a graphite purification furnace according to claim 4, characterized in that: A second air pipe (12) is fixedly mounted on the side wall of the first air pipe (10), and a second control valve (14) is fixedly mounted on the second air pipe (12).

7. A heating device for a graphite purification furnace according to claim 3, characterized in that: An annular molecular sieve (8) is fixedly mounted on the top of the material guide cover (5), and a protrusion inserted into the air hole (7) is arranged on the bottom of the molecular sieve (8).

8. The heating device for a graphite purification furnace according to claim 1, characterized in that: The included angle between the axis of the spray hole (24) and the horizontal plane is 35°-75°.

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