Special feeding device for producing hard carbon negative electrode material

Abstract

The utility model relates to the technical field of feeding structures for producing biomass hard carbon materials, in particular to a special feeding device for producing hard carbon cathode materials, which comprises a hopper, the hopper is conical, a feeding hole is formed in a top opening of the hopper, and a discharging hole is formed in a bottom opening of the hopper; a cover plate assembly is arranged at the feeding port, a bin door assembly is arranged at the discharging port, a material pressing plate capable of rotating and swinging is further arranged in the hopper, the material pressing plate rotates and swings along with work of the bin door assembly, the material pressing plate capable of rotating and swinging is arranged in the hopper, and when a bin door at the discharging port is opened every time by means of extrusion of the material pressing plate, the bin door at the discharging port is opened, the bin door is not prone to falling off. The biomass material in the hopper can quickly pass through the discharge port under the pressure of the material pressing plate to enter production equipment of the hard carbon negative electrode material to be processed, and after discharging is completed, the discharge port can be quickly sealed by the bin door again, so that loss of heat in the production equipment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of feed structures for producing biomass hard carbon materials, in particular to a special feed device for producing hard carbon negative electrode materials. Background Art

[0002] Biomass hard carbon is a carbon material made from biomass materials through a series of processing steps. This carbon material is called "hard carbon" because of the characteristics of its microstructure. Hard carbon has many uses and performs particularly well in the field of energy storage, such as as anode material for lithium-ion batteries and other types of rechargeable batteries.

[0003] However, in the process of producing and processing hard carbon negative electrode materials, in the process of carbonizing biomass materials into carbon materials through a carbonization furnace, since most biomass materials are branches, wood, bamboo, bagasse, rice husks, coconut shells, etc., when the biomass materials are transported to the inside of the carbonization furnace, blockage often occurs at the discharge port where the hopper is connected to the carbonization furnace. In addition, the carbonization furnace is high in temperature and the feed is often opened, which can easily lead to heat loss inside the carbonization furnace.

[0004] In the utility model patent with application number 202021262674.6, a visualized horizontal carbonization furnace is disclosed, including a carbonization furnace body and a feeding mechanism, wherein the carbonization furnace body is a horizontal carbonization furnace and is provided with a partition inside, the partition is vertically arranged and divides the inner cavity of the carbonization furnace body into a first carbonization chamber and a second carbonization chamber; a transparent observation window is provided on the outside of the first carbonization chamber and the second carbonization chamber, and the first carbonization chamber and the second carbonization chamber are both provided with a feed port and a discharge port, and the feed port and the discharge port are distributed in the upper and lower parts of the carbonization furnace body; the feeding mechanism is used to guide the material into the carbonization furnace body, and the feeding mechanism includes a feed pipe, a diverter cylinder and a compression cylinder structure, a feed hopper is provided at one end of the feed pipe, and the other end of the feed pipe is connected to the diverter cylinder.

[0005] However, the technical solution described in the above patent has the problems of material blockage and heat loss. Therefore, there is an urgent need for a feeding device that can avoid material blockage and heat loss during feeding and is specifically used for the production of hard carbon negative electrode materials. Utility Model Content

[0006] In view of the above problems, the utility model provides a special feeding device for the production of hard carbon negative electrode materials. A rotating and swinging pressure plate is arranged inside the hopper, and the extrusion of the pressure plate is utilized so that each time the bin door at the discharge port is opened, the biomass material in the hopper can be quickly passed through the discharge port by the pressure of the pressure plate and enter the production equipment of the hard carbon negative electrode material for processing. After the discharge is completed, the discharge port will be quickly sealed by the bin door again, thereby avoiding the loss of heat inside the production equipment.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A special feeding device for producing hard carbon negative electrode materials, comprising a hopper, the hopper is arranged in a conical shape, the top opening of the hopper is provided with a feeding port, and the bottom opening of the hopper is provided with a discharging port;

[0009] A cover plate assembly is provided at the feed inlet, and the cover plate assembly is used to open and close the feed inlet;

[0010] A door assembly is provided at the discharge port, and the door assembly opens and closes the discharge port;

[0011] A rotating and swinging pressing plate is also provided in the hopper, and the pressing plate rotates and swings along with the operation of the bin door assembly, so that the pressing plate swings to press the material in the hopper toward the opened discharge port.

[0012] As an improvement, a horizontal feed pipe is provided at the discharge port, the bin door assembly is provided inside the feed pipe, and the feed pipe is connected to the hard carbon negative electrode material production equipment.

[0013] As an improvement, the cover plate assembly includes a cover plate and a driver;

[0014] The cover plate is flip-mounted at the top feed port of the hopper, and a protruding connecting arm is provided at the end where the cover plate and the feed port are flip-mounted;

[0015] The driver is installed on the top of the feeding tube, and the driver is hinged to the connecting arm. The driver pulls the connecting arm to drive the cover plate to flip.

[0016] As an improvement, an upper pressing plate is connected to the lower side of the cover plate, and when the cover plate closes the feed inlet, the upper pressing plate is horizontally located inside the hopper.

[0017] As an improvement, the upper pressing plate and the cover plate are elastically telescopically connected via a telescopic arm.

[0018] As an improvement, the upper pressing plate includes a main plate body and a telescopic plate;

[0019] The main board is arranged in a square shape;

[0020] The telescopic plates are arranged at four sides of the main board body, and are slidably arranged along the main board body. Spring components are arranged at the matching installation positions of the telescopic plates and the main board body.

[0021] As an improvement, the door assembly includes a door and a pusher;

[0022] The door is slidably installed in the feeding pipe, and the door is L-shaped;

[0023] The pusher is installed in the feeding pipe, and the pusher drives the warehouse door to slide horizontally.

[0024] As an improvement, a protrusion is protruded on the upper end surface of the bin door, and the protrusion is in contact with the lower end of the pressing plate to drive the pressing plate to flip.

[0025] The beneficial effects of the utility model are:

[0026] (1) The utility model provides a rotating and swinging pressing plate inside the hopper, and utilizes the extrusion of the pressing plate so that each time the door at the discharge port is opened, the biomass material in the hopper can pass through the pressure of the pressing plate and quickly pass through the discharge port to enter the production equipment of the hard carbon negative electrode material for processing. After the discharge is completed, the discharge port will be quickly sealed by the door again, thereby avoiding the loss of heat inside the production equipment.

[0027] (2) The utility model closes the discharge port through the bin door and pushes the bin door to push the biomass material in the feeding pipe forward, so that the biomass material in the feeding pipe is pushed forward for a certain distance, thereby avoiding excessive biomass material remaining in the feeding pipe and improving the carbonization efficiency of the biomass material;

[0028] (3) The utility model not only provides a cover plate to seal the feed port of the hopper, but also provides an upper pressure plate to apply pressure to the biomass material in the hopper, so that the biomass material in the hopper is always concentrated at the discharge port, so that the biomass material in the hopper can be discharged more quickly and more concentratedly.

[0029] In summary, the utility model has the advantages of smooth discharge and good heat preservation effect, and is particularly suitable for the technical field of feeding device structure for biomass hard carbon production. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the hopper of the utility model in an open state;

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower pressing plate of the utility model;

[0033] Figure 4 It is a side structural schematic diagram of the warehouse door assembly of the utility model.

[0034] In the figure: 1, hopper, 11, feed port, 12, discharge port, 121, feed pipe, 2, cover assembly, 21, cover, 211, connecting arm, 212, upper pressure plate, 2121, main board, 2122, telescopic plate, 2123, spring part, 213, telescopic arm, 22, driver, 3, bin door assembly, 31, bin door, 311, bump, 32, pusher, 4, pressure plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Embodiment 1:

[0039] like Figures 1 to 4 As shown, a special feeding device for producing hard carbon negative electrode materials includes a hopper 1:

[0040] The hopper 1 is conical in shape, the top opening of the hopper 1 is provided with a feed port 11, and the bottom opening of the hopper 1 is provided with a discharge port 12;

[0041] The feed port 11 is provided with a cover plate assembly 2, and the cover plate assembly 2 is provided to open and close the feed port 11;

[0042] The discharge port 12 is provided with a door assembly 3, and the door assembly 3 is provided to open and close the discharge port 12;

[0043] The hopper 1 is also provided with a rotating and swinging pressing plate 4, which rotates and swings along with the operation of the bin door assembly 3, so that the pressing plate 4 swings to press the material in the hopper 1 toward the opened discharge port 12.

[0044] Among them, a horizontal feeding pipe 121 is arranged at the discharge port 12, the bin door assembly 3 is arranged in the feeding pipe 121, and the feeding pipe 121 is connected with the hard carbon negative electrode material production equipment, the hopper 1 is located on the feeding pipe 121, and the bin door assembly 3 and the negative electrode material production equipment are arranged at both ends of the feeding pipe 121, and the feeding pipe 121 is arranged in a square tube shape.

[0045] Furthermore, the door assembly 3 includes a door 31 and a pusher 32;

[0046] The door 31 is slidably installed in the feeding pipe 121. The door 31 is L-shaped. The horizontal part of the door 31 is used to open and close the discharge port 12, and the vertical part of the door 31 is used to push the biomass material in the feeding pipe 121. The width and height of the door 31 are consistent with the height and width of the internal channel of the feeding pipe 121, so that the feeding pipe 121 guides the pushing of the door 31.

[0047] The pusher 32 is installed in the feeding pipe 121, and drives the warehouse door 31 to slide horizontally. The pusher 32 is preferably a cylinder or an electric cylinder. When the pusher 32 pushes the warehouse door 31, the discharge port 12 is closed, and when the pusher 32 pulls back the warehouse door 31, the discharge port 12 is opened.

[0048] Furthermore, a protrusion 311 is protruded on the upper end surface of the bin door 31, and the protrusion 311 is in contact with the lower end of the pressing plate 4 to drive the pressing plate 4 to flip over. The lower end of the pressing plate 4 is rotatably mounted and connected to the discharge port 12, and the pressing plate 4 is extended downward from the rotatable mounting connection portion to be in contact with the protrusion 311. Furthermore, the two ends of the pressing plate 4 are arranged to fit the side walls of the hopper 1, and the height of the pressing plate 4 is greater than the depth of the biomass material in the hopper 1.

[0049] It is explained in detail that sufficient biomass materials are first added to the hopper 1, and these biomass materials are cut and crushed, and then the warehouse door 31 is opened to add these biomass materials into the production equipment in batches for carbonization processing. During the process of opening the warehouse door 31 to add materials, due to the presence of branches, wood, etc. in the biomass materials, even after cutting and crushing, friction and other factors will still cause blockage at the discharge port 12.

[0050] The utility model utilizes the interference cooperation between the protrusion 311 and the lower end of the pressing plate 4 each time the bin door 31 is opened, so as to drive the pressing plate 4 to swing, so that the pressing plate 4 squeezes the biomass material in the bin 1, thereby achieving the purpose of quickly passing the biomass material through the discharge port 12. In addition, once the discharge port 12 is blocked, the pressure of the pressing plate 4 can quickly discharge the biomass material blocked at the discharge port 12, thereby solving the problem of blockage.

[0051] Embodiment 2:

[0052] With reference to Example 1, the difference between Example 2 of the utility model and Example 1 is described as follows:

[0053] like Figure 1 and Figure 2 As shown, the cover plate assembly 2 includes a cover plate 21 and a driver 22;

[0054] The cover plate 21 is flipped and installed at the top feed port 11 of the hopper 1, and a protruding connecting arm 211 is provided at the end where the cover plate 21 and the feed port 11 are flipped and installed;

[0055] The driver 22 is installed on the top of the feeding pipe 121. The driver 22 is hinged to the connecting arm 211, and the driver 22 pulls the connecting arm 211 to drive the cover plate 21 to flip. The driver 22 is preferably a cylinder. The cylinder push rod of the driver 22 is hinged to the connecting arm 211. The cylinder push rod and the connecting arm 211 form a connecting rod mechanism. The driver 22 pulls the cover plate 21 to rotate to open or close the feed port 11.

[0056] Furthermore, an upper pressing plate 212 is connected to the lower side of the cover plate 21 . When the cover plate 21 closes the feed port 11 , the upper pressing plate 212 is horizontally located inside the hopper 1 .

[0057] Furthermore, the upper pressing plate 212 and the cover plate 21 are elastically telescopically connected via a telescopic arm 213 .

[0058] Furthermore, the upper pressing plate 212 includes a main plate body 2121 and a telescopic plate 2122;

[0059] The main board body 2121 is arranged in a square shape;

[0060] The telescopic plates 2122 are disposed at four sides of the main board body 2121 . The telescopic plates 2122 are slidably disposed along the main board body 2121 , and spring members 2123 are disposed at the locations where the telescopic plates 2122 and the main board body 2121 are mounted in coordination.

[0061] In order to further facilitate the discharge of the biomass material from the discharge port 12 , a set of upper pressure plates 212 are further provided on the cover plate 21 . The upper pressure plates 212 apply a downward pressure to the biomass material in the hopper 1 , so that the biomass material is continuously concentrated toward the discharge port 12 .

[0062] In order to ensure that no jamming occurs between the upper pressing plate 212 and the pressing plate 4, telescopic plates 2122 are arranged around the upper pressing plate 212. When the pressing plate 4 rotates and swings, the corresponding telescopic plates 2122 can be telescoped. Accordingly, the arrangement of the upper pressing plate 212 can prevent the biomass material in the hopper 1 from entering the side wall space adjacent to the pressing plate 4 and the hopper 1, causing the pressing plate 4 to be unable to swing.

[0063] Working process:

[0064] First, the cover plate 21 is rotated to open the feed port 11 at the top of the hopper 1. At this time, the discharge port 12 at the bottom of the hopper 1 is closed by the bin door 31, and the biomass raw material is poured into the hopper 1 to ensure that the depth of the biomass raw material does not exceed the height of the pressing plate 4, and the pressing plate 4 is just in contact with the side wall of the hopper 1 at this time. Then, the cover plate 21 is rotated to close the feed port 11. When the feed port 11 is closed, the upper pressing plate 212 on the cover plate 21 squeezes the biomass raw material in the hopper 1;

[0065] Then, the bin door 31 at the bottom of the hopper 1 is pushed to open the discharge port 12, so that the biomass raw materials are discharged through the discharge port 12. In the process of the bin door 31 being pulled by the pusher 32, the protrusion 311 located on the bin door 31 conflicts with the pressure plate 4 at the moment when the discharge port 12 is about to be fully opened, so that the pressure plate 4 rotates and swings around the hinge axis, squeezing the biomass material in the hopper 1, so that the biomass material is quickly discharged through the discharge port 12, shortening the discharge time, reducing the opening time of the discharge port 12, and reducing heat loss.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device for producing hard carbon negative electrode materials, comprising a hopper (1), characterized in that: The hopper (1) is arranged in a conical shape, the top opening of the hopper (1) is provided with a feed port (11), and the bottom opening of the hopper (1) is provided with a discharge port (12); A cover plate assembly (2) is provided at the feed inlet (11), and the cover plate assembly (2) is used to open and close the feed inlet (11); A door assembly (3) is provided at the discharge port (12), and the door assembly (3) is configured to open and close the discharge port (12); A rotating and swinging material pressing plate (4) is also provided in the hopper (1). The material pressing plate (4) rotates and swings along with the operation of the bin door assembly (3), so that the material pressing plate (4) swings and presses the material in the hopper (1) toward the opened discharge port (12).

2. A feeding device for producing hard carbon negative electrode materials according to claim 1, characterized in that: A horizontal feeding pipe (121) is provided at the material outlet (12), the chamber door assembly (3) is arranged inside the feeding pipe (121), and the feeding pipe (121) is connected to the hard carbon negative electrode material production equipment.

3. A dedicated feeding device for producing hard carbon negative electrode materials according to claim 2, characterized in that: The cover plate assembly (2) comprises a cover plate (21) and a driver (22); The cover plate (21) is flipped and installed at the top feed port (11) of the hopper (1), and a protruding connecting arm (211) is provided at the end where the cover plate (21) and the feed port (11) are flipped and installed; The driver (22) is installed on the top of the feeding tube (121), the driver (22) is hingedly connected to the connecting arm (211), and the driver (22) pulls the connecting arm (211) to drive the cover plate (21) to flip.

4. A feeding device for producing hard carbon negative electrode materials according to claim 3, characterized in that: An upper pressing plate (212) is connected to the lower side of the cover plate (21), and when the cover plate (21) closes the feed opening (11), the upper pressing plate (212) is horizontally located inside the hopper (1).

5. A feeding device for producing hard carbon negative electrode materials according to claim 4, characterized in that: The upper pressing plate (212) and the cover plate (21) are elastically telescopically connected via a telescopic arm (213).

6. A feeding device for producing hard carbon negative electrode materials according to claim 4, characterized in that: The upper pressing plate (212) comprises a main plate body (2121) and a telescopic plate (2122); The main board body (2121) is arranged in a square shape; The telescopic plate (2122) is arranged at four sides of the main board body (2121), the telescopic plate (2122) is slidably arranged along the main board body (2121), and spring components (2123) are arranged at the matching installation positions of the telescopic plate (2122) and the main board body (2121).

7. A feeding device for producing hard carbon negative electrode materials according to claim 2, characterized in that: The door assembly (3) comprises a door (31) and a pusher (32); The bin door (31) is slidably mounted in the feeding pipe (121), and the bin door (31) is arranged in an L shape; The pusher (32) is installed in the feeding pipe (121), and the pusher (32) drives the bin door (31) to slide horizontally.

8. A dedicated feeding device for producing hard carbon negative electrode materials according to claim 7, characterized in that: A convex block (311) is protruded from the upper end surface of the bin door (31), and the convex block (311) is in contact with the lower end of the pressing plate (4) to drive the pressing plate (4) to turn over.

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