Double-barrel efficient carbonization furnace
Through the double-cylinder design of the carbonization furnace, the materials move back and forth in the two barrels for heating, which solves the problems of the existing carbonization furnace being unable to operate continuously, inefficient and high energy consumption, and achieves an efficient and continuous carbonization process.
Patent Information
- Application Number
- CN202420558013.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The existing horizontal drum carbonization furnaces have problems such as inability to operate continuously, inefficiently, high energy consumption and high equipment requirements during the carbonization process.
A double-barrel high-efficiency carbonization furnace is designed, and the double-barrel design of the first barrel and the second barrel is adopted. The material is moved in the second barrel to achieve drying and first heating, and the second heating and carbonization are realized through the material conveying mechanism.
Continuous operation of the carbonization process is achieved, carbonization efficiency is improved, energy consumption is reduced, and uneven carbonization caused by uneven temperature is avoided.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the field of carbonization furnaces, in particular to a double-drum high-efficiency carbonization furnace. Background Art
[0002] In the industrial production of negative electrode materials for lithium-ion batteries, the precursor materials of the powdered negative electrode materials are often subjected to high-temperature heat treatment to obtain the negative electrode materials. This is usually called carbonization treatment in the industry, and the corresponding equipment is usually a carbonization furnace. In the prior art, the carbonization of negative electrode materials mostly uses a horizontal drum carbonization furnace. The precursor material is placed in the drum, and then the drum is heated. During the heating process, the drum needs to be continuously rotated so that the material inside is heated evenly. This carbonization method requires loading first and then carbonization, so continuous operation cannot be performed. In addition, the materials placed in the drum are large and concentrated, and they are accompanied by a certain amount of moisture. They need to be heated for a long time, which is inefficient and energy-consuming. The drum also needs to be continuously rotated, which has high requirements for equipment. Utility Model Content
[0003] In view of this, the utility model provides a double-drum high-efficiency carbonization furnace which has a simple structure, can operate continuously, and does not require the drum to rotate.
[0004] The purpose of the utility model is achieved through the following technical solutions:
[0005] A double-barrel high-efficiency carbonization furnace comprises: a frame, a first barrel and a second barrel both of which are hollow inside, a heating mechanism, a feed pipe and a discharge pipe, and a conveying mechanism, wherein the first barrel is arranged on the frame, the second barrel is located inside the first barrel, and a material channel is formed between the inner side wall of the first barrel and the outer side wall of the second barrel; the heating mechanism is arranged on the frame and covers the outer side wall of the first barrel, and is used to heat the first barrel; the feed pipe is connected to one end of the second barrel, and the discharge pipe is connected to one end of the first barrel close to the feed pipe; the conveying mechanism is arranged on the frame, and is used to drive the material in the first barrel and the material in the second barrel to move in opposite directions; wherein the first barrel and the second barrel are staggered, and there is a material transfer space between one end of the second barrel away from the feed pipe and one end of the first barrel away from the discharge pipe.
[0006] In the above technical solution, during carbonization, the material first enters the second barrel from the feed pipe, and the material is moved along its length direction in the second barrel through the feeding mechanism until it moves to the end of the second barrel and enters the first barrel from the material transfer space. At the same time, the feeding mechanism drives the material to move in the opposite direction in the first barrel until it flows out from the discharge pipe.
[0007] The heating mechanism of the utility model covers the outer wall of the first barrel, ensuring uniform heat distribution and avoiding uneven carbonization of the material caused by uneven temperature during the carbonization process. In addition, a double-barrel design of the first barrel and the second barrel is adopted. When the material moves in the second barrel, the material can be dried and heated for the first time. When moving in the first barrel, the temperature is higher because it is close to the barrel wall of the first barrel, so the second heating and carbonization of the material can be achieved. That is, the material is moved back and forth in different barrels for heating to ensure that the material has sufficient heating time and the material can be heated in a dispersed manner. Since the two barrels do not need to rotate, continuous carbonization operations can be performed, that is, feeding and discharging at the same time, which greatly improves the carbonization efficiency and reduces energy consumption.
[0008] Optionally, in a possible implementation, the feeding mechanism includes a sealing cover, a first feeding piece, a second feeding piece and a rotating driving piece, the sealing cover is rotatably mounted on one end of the first barrel away from the discharge pipe, the first feeding piece and the second feeding piece are both arranged on the sealing cover and are respectively attached to the inner side wall of the first barrel and the inner side wall of the second barrel, and the rotating driving piece is used to drive the rotation of the sealing cover.
[0009] In the above technical solution, the cover can be used to seal the first barrel to prevent leakage of the material and ensure that the carbonization furnace maintains good sealing during operation. In addition, the first feeding member and the second feeding member are arranged so that they can directly act on the material and drive the material to move in their respective barrels, thereby realizing continuous transportation of the material during the carbonization process. At the same time, the use of a rotary drive member to directly drive the rotation of the cover is simple and efficient, which can not only realize continuous and uniform transportation of the material, but also reduce energy consumption and improve the overall operation efficiency of the carbonization furnace.
[0010] Optionally, in a possible implementation, the first feeding member includes a first rotating cylinder, and a first guide sheet spaced and staggered along the length direction of the first rotating cylinder, the second feeding member includes a second rotating cylinder, and a second guide sheet spaced and staggered along the length direction of the second rotating cylinder, the first guide sheet and the second guide sheet are both inclined and in opposite directions.
[0011] In the above technical solution, the first guide sheet and the second guide sheet are respectively inclined toward the moving direction of the material in their respective barrels, and the first guide sheet and the second guide sheet are spaced and staggered along the length direction of their respective rotating barrels, so that the guide sheet can better contact with the material and effectively promote the movement of the material in the barrel, and can also move the material so that the material can be effectively stirred during the conveying process to be better heated.
[0012] Optionally, in a possible implementation, the heating mechanism includes a heating layer, an electromagnetic induction coil, and an electromagnetic heating controller electrically connected to the electromagnetic induction coil, the heating layer is coated on the outer wall of the first barrel, and the electromagnetic induction coil is wound around the outer surface of the heating layer.
[0013] In the above technical solution, the heating structure adopts electromagnetic induction heating to achieve efficient and uniform heating of the first barrel. The frequency and intensity of the current are precisely controlled by the electromagnetic heating controller, thereby generating an alternating magnetic field in the heating layer, and then generating eddy currents in the barrel to achieve rapid heating. In addition, the setting of the heating layer can also enhance the transfer effect of thermal energy, ensuring that heat can be evenly and quickly transferred to the inside of the barrel.
[0014] Optionally, in a possible implementation, a fixing block is further included, and the first barrel, the second barrel, the feed pipe and the discharge pipe are all mounted on the frame through the fixing block.
[0015] In the above technical solution, the setting of the fixed block enables key components such as the first barrel, the second barrel, the feed pipe and the discharge pipe to be firmly mounted on the frame, ensuring that the relative positions of the components remain unchanged during the operation of the carbonization furnace, and effectively preventing the loosening or displacement of components due to vibration or impact, thereby ensuring the stable operation of the carbonization furnace and facilitating the disassembly and connection of the components.
[0016] Optionally, in a possible implementation, the second barrel extends out of the first barrel close to one end of the feeding tube, and is connected to one end of the feeding tube via a connector.
[0017] In the above technical solution, the second barrel has a protruding barrel body relative to the first barrel, which can facilitate the docking installation between the second barrel and the feed pipe, thereby improving the installation efficiency and installation accuracy. In addition, the connector, as a component connecting the second barrel and the feed pipe, has the characteristics of simple structure and convenient installation.
[0018] Optionally, in a possible implementation, an exhaust pipe is provided on the fixed block, and the exhaust pipe is connected to the first barrel.
[0019] In the above technical solution, the setting of the exhaust pipe effectively solves the problem of waste gas emission that may be generated during the carbonization process. During the carbonization process, the material will release some harmful gases. If they are not discharged in time, they will affect the working environment and the health of the operators. By discharging the waste gas through the exhaust pipe, the air circulation inside the carbonization furnace can be maintained, the accumulation of harmful gases can be reduced, and thus the working environment can be improved. In addition, the setting of the air pipe also facilitates further treatment of the waste gas, such as connecting the exhaust pipe to the waste gas treatment equipment for waste gas purification.
[0020] Optionally, in a possible implementation, a feed hopper and a control valve are provided on the feed pipe, and the feed hopper is located at an end of the feed pipe away from the second barrel.
[0021] In the above technical solution, the setting of the feed hopper makes it easier to put materials into the carbonization furnace. The control valve can control the rate and amount of materials entering the carbonization furnace. The operator can adjust the opening of the control valve as needed to achieve precise control of material feeding. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 The figure is a schematic diagram of the overall structure of an embodiment of the utility model.
[0024] Figure markings: 1-frame; 2-first barrel; 3-second barrel; 4-heating mechanism; 41-heating layer; 42-electromagnetic induction coil; 43-electromagnetic heating controller; 5-feeding pipe; 51-feeding hopper; 52-control valve; 6-discharging pipe; 7-feeding mechanism; 71-sealing cover; 72-first feeding member; 721-first rotating drum; 722-first guide sheet; 73-second feeding member; 731-second rotating drum; 732-second guide sheet; 74-rotating driving member; 8-fixed block; 9-connector; 10-exhaust pipe. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0027] Please refer to Figure 1The present embodiment provides a double-barrel high-efficiency carbonization furnace, comprising: a frame 1, a first barrel 2 and a second barrel 3 both of which are hollow inside, a heating mechanism 4, a feed pipe 5 and a discharge pipe 6, and a conveying mechanism 7, wherein the first barrel 2 is arranged on the frame 1, the second barrel 3 is located inside the first barrel 2, and a material channel is formed between the inner side wall of the first barrel 2 and the outer side wall of the second barrel 3; the heating mechanism 4 is arranged on the frame 1 and covers the outer side wall of the first barrel 2, and is used to heat the first barrel 2; the feed pipe 5 is connected to one end of the second barrel 3, and the discharge pipe 6 is connected to one end of the first barrel 2 close to the feed pipe 5; the conveying mechanism 7 is arranged on the frame 1, and is used to drive the material in the first barrel 2 and the material in the second barrel 3 to move in opposite directions; wherein the first barrel 2 and the second barrel 3 are staggered, and there is a material transfer space between one end of the second barrel 3 away from the feed pipe 5 and one end of the first barrel 2 away from the discharge pipe 6.
[0028] During carbonization in this embodiment, the material first enters the second barrel 3 from the feed pipe 5, and is moved along its length direction in the second barrel 3 through the feeding mechanism 7 until it moves to the end of the second barrel 3 and enters the first barrel 2 from the material transfer space. At the same time, the feeding mechanism 7 drives the material to move in the opposite direction in the first barrel 2 until it flows out from the discharge pipe 6.
[0029] The heating mechanism 4 of the present embodiment covers the outer wall of the first barrel 2, ensuring uniform heat distribution and avoiding uneven carbonization of the material caused by uneven temperature during the carbonization process. In addition, a double-barrel design of the first barrel 2 and the second barrel 3 is adopted. The material can be dried and heated for the first time when it moves in the second barrel 3. When it moves in the first barrel 2, the temperature is higher because it is close to the barrel wall of the first barrel 2, so the second heating and carbonization of the material can be achieved. That is, the material is moved back and forth in different barrels for heating, which ensures that the material has sufficient heating time and can be heated in a dispersed manner. Since the two barrels do not need to rotate, continuous carbonization operations can be performed, that is, feeding and discharging at the same time, which greatly improves the carbonization efficiency and reduces energy consumption.
[0030] In this embodiment, the feeding mechanism 7 includes a cover 71, a first feeding member 72, a second feeding member 73 and a rotary drive member 74. The cover 71 is rotatably mounted on the end of the first barrel 2 away from the discharge pipe 6. The first feeding member 72 and the second feeding member 73 are both arranged on the cover 71 and are respectively attached to the inner side wall of the first barrel 2 and the inner side wall of the second barrel 3. The rotary drive member 74 is used to drive the rotation of the cover 71. The rotary drive member 74 is a motor or a rotary cylinder.
[0031] The cover 71 can be used to seal the first barrel 2 to prevent leakage of materials and ensure that the carbonization furnace maintains good sealing during operation. In addition, the first feeding member 72 and the second feeding member 73 are set so that they can directly act on the material and drive the material to move in their respective barrels, thereby realizing continuous transportation of the material during the carbonization process. At the same time, the rotary drive member 74 is used to directly drive the rotation of the cover 71, which is simple and efficient, not only to realize continuous and uniform transportation of materials, but also to reduce energy consumption and improve the overall operation efficiency of the carbonization furnace.
[0032] In this embodiment, the first feeding member 72 includes a first rotating cylinder 721, and a first guide piece 722 spaced and staggered along the length direction of the first rotating cylinder 721. The second feeding member 73 includes a second rotating cylinder 731, and a second guide piece 732 spaced and staggered along the length direction of the second rotating cylinder 731. The first guide piece 722 and the second guide piece 732 are both inclined and in opposite directions.
[0033] The first guide piece 722 and the second guide piece 732 are respectively inclined toward the moving direction of the material in their respective barrels. The first guide piece 722 and the second guide piece 732 are both spaced and staggered along the length direction of their respective rotating barrels, so that the guide pieces can better contact with the material and effectively push the material to move in the barrel, and can also move the material so that the material can be effectively stirred during the conveying process to be better heated.
[0034] In this embodiment, the heating mechanism 4 includes a heating layer 41, an electromagnetic induction coil 42, and an electromagnetic heating controller 43 electrically connected to the electromagnetic induction coil 42. The heating layer 41 is coated on the outer wall of the first barrel 2, and the electromagnetic induction coil 42 is wound around the outer surface of the heating layer 41. The electromagnetic heating controller 43 can be electrically connected to the PLC controller, and the PLC controller issues corresponding action instructions to the electromagnetic heating controller 43.
[0035] The heating structure adopts electromagnetic induction heating to achieve efficient and uniform heating of the first barrel 2. The frequency and intensity of the current are precisely controlled by the electromagnetic heating controller 43, thereby generating an alternating magnetic field in the heating layer 41, and then generating eddy currents in the barrel to achieve rapid heating. In addition, the setting of the heating layer 41 can also enhance the transfer effect of thermal energy, ensuring that heat can be evenly and quickly transferred to the inside of the barrel.
[0036] The carbonization furnace of this embodiment further comprises a fixing block 8 , and the first barrel 2 , the second barrel 3 , the feed pipe 5 and the discharge pipe 6 are all mounted on the frame 1 via the fixing block 8 .
[0037] The setting of the fixing block 8 enables key components such as the first barrel 2, the second barrel 3, the feed pipe 5 and the discharge pipe 6 to be firmly mounted on the frame 1, ensuring that the relative positions of the components remain unchanged during the operation of the carbonization furnace, effectively preventing the loosening or displacement of the components due to vibration or impact, thereby ensuring the stable operation of the carbonization furnace and facilitating the disassembly and connection of the components.
[0038] In this embodiment, the second barrel 3 extends out of the first barrel 2 at one end close to the feeding tube 5 , and is connected to one end of the feeding tube 5 via a connector 9 .
[0039] The second barrel 3 has a protruding barrel body relative to the first barrel 2, which can facilitate the docking installation between the second barrel 3 and the feed pipe 5, thereby improving the installation efficiency and accuracy. In addition, the connector 9, as a component connecting the second barrel 3 and the feed pipe 5, has the characteristics of simple structure and convenient installation.
[0040] In this embodiment, an exhaust pipe 10 is provided on the fixed block 8, and the exhaust pipe 10 is connected to the first barrel 2. The provision of the exhaust pipe 10 effectively solves the problem of exhaust gas emission that may be generated during the carbonization process. During the carbonization process, the material will release some harmful gases, which will affect the working environment and the health of the operator if not discharged in time. Exhausting the exhaust gas through the exhaust pipe 10 can maintain air circulation inside the carbonization furnace, reduce the accumulation of harmful gases, and thus improve the working environment. In addition, the provision of the air pipe also facilitates further treatment of the exhaust gas, such as connecting the exhaust pipe 10 to the exhaust gas treatment equipment for exhaust gas purification.
[0041] In this embodiment, a feed hopper 51 and a control valve 52 are provided on the feed pipe 5, and the feed hopper 51 is located at one end of the feed pipe 5 away from the second barrel 3. The provision of the feed hopper 51 enables the material to be more conveniently fed into the carbonization furnace, and the control valve 52 can control the rate and amount of the material entering the carbonization furnace, and the operator can adjust the opening of the control valve 52 as needed, thereby achieving precise control of the material feeding.
[0042] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.
[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A double-drum high-efficiency carbonization furnace, characterized in that: include: frame; A first barrel and a second barrel both of which are hollow inside, wherein the first barrel is arranged on the frame, and the second barrel is located inside the first barrel, and a material channel is formed between the inner side wall of the first barrel and the outer side wall of the second barrel; A heating mechanism, disposed on the frame and covering the outer side wall of the first barrel, for heating the first barrel; A feed pipe and a discharge pipe, wherein the feed pipe is connected to one end of the second barrel, and the discharge pipe is connected to one end of the first barrel close to the feed pipe; A feeding mechanism, disposed on the frame, for driving the material in the first barrel and the material in the second barrel to move in opposite directions; Wherein, the first barrel and the second barrel are staggered, and a material transfer space is provided between an end of the second barrel away from the feed pipe and an end of the first barrel away from the discharge pipe.
2. The double-drum high-efficiency carbonization furnace according to claim 1, characterized in that: The feeding mechanism includes a sealing cover, a first feeding piece, a second feeding piece and a rotating driving piece. The sealing cover is rotatably mounted on an end of the first barrel away from the discharge pipe. The first feeding piece and the second feeding piece are both arranged on the sealing cover and are respectively attached to the inner side wall of the first barrel and the inner side wall of the second barrel. The rotating driving piece is used to drive the rotation of the sealing cover.
3. The double-drum high-efficiency carbonization furnace according to claim 2, characterized in that: The first feeding member includes a first rotating cylinder and a first guide sheet spaced and staggered along the length direction of the first rotating cylinder. The second feeding member includes a second rotating cylinder and a second guide sheet spaced and staggered along the length direction of the second rotating cylinder. The first guide sheet and the second guide sheet are both inclined and in opposite directions.
4. The double-drum high-efficiency carbonization furnace according to claim 1, characterized in that: The heating mechanism includes a heating layer, an electromagnetic induction coil, and an electromagnetic heating controller electrically connected to the electromagnetic induction coil. The heating layer is coated on the outer wall of the first barrel, and the electromagnetic induction coil is wound around the outer surface of the heating layer.
5. The double-drum high-efficiency carbonization furnace according to claim 1, characterized in that: It also includes a fixing block, and the first barrel, the second barrel, the feed pipe and the discharge pipe are all installed on the frame through the fixing block.
6. The double-drum high-efficiency carbonization furnace according to claim 5, characterized in that: The second barrel extends out of the first barrel near one end of the feeding tube and is connected to one end of the feeding tube through a connector.
7. The double-drum high-efficiency carbonization furnace according to claim 5, characterized in that: The fixed block is provided with an exhaust pipe, and the exhaust pipe is communicated with the first barrel.
8. The double-drum high-efficiency carbonization furnace according to any one of claims 1 to 7, characterized in that: A feed hopper and a control valve are provided on the feed pipe, and the feed hopper is located at one end of the feed pipe away from the second barrel.