A graphite anode baking production raw material kneading device

Abstract

This utility model belongs to the technical field of kneading equipment, specifically a kneading device for raw materials in graphite sagger production, including a kneading machine and a cover at its upper end; a cylindrical body is distributed near the edge of the upper end of the cover, and an exhaust pipe connected to an external negative pressure device is installed at the upper end of the cylinder; an upper ring pipe that moves vertically and vertically and a lower ring pipe below it are arranged at the inner edge of the cover; a folded pipe connecting the exhaust pipe and the upper ring pipe is arranged inside the cylindrical body; an air vent is provided on the outer side of the lower end of the lower ring pipe, angled towards the inner wall of the kneading machine; a shut-off valve is provided inside the lower end of the exhaust pipe, and a fan is fixedly installed on the outer side of the shut-off valve. This utility model can extract exhaust gas at close range at different heights during kneading operations, and switch to a cleaning mechanism during material feeding, using the downward angled airflow to blow towards the inner wall of the kneading machine 11, thereby promoting the detachment of adhering materials and achieving a sufficient feeding effect, thus also achieving a cleaning effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing and kneading equipment, and in particular relates to a raw material mixing and kneading device for graphite sagger production. Background Technology

[0002] A graphite sagger is a high-temperature container made of graphite material. It is mainly used in industrial fields that require high temperature, inert atmosphere or vacuum environment, such as powder metallurgy, ceramics, sintering of new energy materials (especially lithium battery materials) and crystal growth. The production of graphite saggers is inseparable from raw material mixing, which refers to the operation process of vigorously stirring, mixing and kneading the solid particulate raw materials (mainly graphite powder or petroleum coke / asphalt coke powder) that make up the main body of the sagger with liquid binder (mainly coal tar pitch) under heating.

[0003] Currently, the raw materials after mixing have strong viscosity, resulting in material residue on the inner wall of the mixer. This not only affects the feeding effect but also easily forms solidified impurities, which is not conducive to subsequent cleaning and use in the next set of mixing operations.

[0004] To address the aforementioned issues, this application proposes a raw material mixing and kneading device for graphite sagger production. Utility Model Content

[0005] The purpose of this utility model is to provide a raw material mixing and kneading device for graphite sagger production, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a raw material mixing device for graphite sagger production, including a mixing machine and a machine cover at its upper end;

[0008] The upper part of the cover has a cylindrical body distributed near the edge, and an air extraction pipe is installed on the upper part of the cover to connect to an external negative pressure device. The inner edge of the cover has an upper ring pipe that moves up and down and a lower ring pipe below it. The inside of the cylindrical body has a folded pipe that connects the air extraction pipe and the upper ring pipe.

[0009] The lower end of the lower ring pipe has a vent that is angled toward the inner wall of the mixer. The lower end of the exhaust pipe has a shut-off valve, and a fan is fixedly installed on the outside of the shut-off valve.

[0010] Preferably, a counterweight is fitted on the outer side of the upper ring tube, and the folded tube and the upper ring tube are connected through the tube body, with the upper end of the folded tube fixedly connected to the rope.

[0011] Preferably, a motor box is fixedly installed on the outside of the cylinder, and a take-up box is connected to one end of the cylinder, with the upper end of the rope stored in the take-up box.

[0012] Preferably, the inside of the cover is provided with an inverted conical frame for guiding the flue gas to the outer ring area.

[0013] Preferably, the connecting pipe connecting the upper and lower ring pipes has a sealing gasket fixed inside for dynamically sealing the communication channel.

[0014] Preferably, the counterweight is located between the outer wall of the conical frame and the inner wall of the machine cover, and the upper ring tube moves downward by gravity.

[0015] Preferably, the exhaust pipe and the exhaust pipe of the fan outside the on / off valve are alternately connected to the folded pipe.

[0016] This utility model has the following beneficial effects:

[0017] This invention, through the up-and-down movement of the lower and upper ring pipes, allows the airflow released by the external fan to be directed to the inner wall of the mixer via the vent during material feeding. This blows the material adhering to the inner wall surface from top to bottom, ensuring sufficient material feeding, avoiding waste and solidifying impurities. It also creates an inclined effect on the inner wall of the mixer, reducing the difficulty of subsequent maintenance and facilitating the use of the next set of mixing operations.

[0018] This invention utilizes an upper ring tube that moves up and down to draw out the fumes during mixing operations or after blowing off adhering materials. Drawing out the fumes at close range not only ensures thorough exhaust but also improves the timeliness of the extraction, preventing excessive accumulation that could hinder extraction or increase air pressure and cause leaks.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal planar structure of the cover of this utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional state of the machine cover and its enlarged partial structure of the present invention;

[0024] Figure 4This is a schematic diagram of the internal structure of the machine cover and the kneading machine assembly of this utility model;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the picture:

[0027] 11. Mixing machine; 12. Machine cover;

[0028] 121. Conical frame;

[0029] 21. Cylinder body;

[0030] 211. Suction pipe; 212. Upper ring pipe; 213. Lower ring pipe; 214. Counterweight; 215. Folded pipe; 216. Rope;

[0031] 2111, On / off valve; 2121, Connecting pipe; 2122, Sealing gasket; 2131, Vent. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Please see Figure 1-4 As shown, this utility model is a raw material mixing device for graphite sagger production, including a mixing machine 11 and a machine cover 12 at its upper end;

[0035] Four cylinders 21 are evenly distributed around the upper edge of the cover 12. The upper end of each cylinder is equipped with a suction pipe 211 that connects to an external negative pressure device. The lower end of each cylinder connects to the upper ring pipe 212 inside the cover 12 and the lower ring pipe 213 below it. The two pipes are located at the edge inside the cover 12 and can slide up and down. The lower ring pipe 213 is used to draw in smoke or release air. When drawing in smoke, the combination of up and down movement can achieve different heights of smoke drawing effect. When releasing air, it moves from top to bottom to blow off the material adsorbed on the inner wall of the mixer 11. The inside of the cylinder 21 is provided with a folded pipe 215 that connects the suction pipe 211 and the upper ring pipe 212. This allows the two pipes to move up and down to different positions and maintain communication with the suction pipe.

[0036] Among them, the lower end of the lower ring pipe 213 is provided with an air vent 2131 that is obliquely facing the inner wall of the kneader 11. When the air force is released, it can form a blowing force from top to bottom, causing the material to fall downward. The lower end of the exhaust pipe 211 is provided with a shut-off valve 2111. A fan is fixedly installed on the outside of the shut-off valve 2111. The air outlet pipes of the exhaust pipe 211 and the fan on the outside of the shut-off valve 2111 are alternately connected to the folded pipe 215 to switch the negative pressure of suction and the air force output when feeding under different working conditions.

[0037] Furthermore, a counterweight 214 is fitted on the outer side of the upper ring tube 212. The folding tube 215 and the upper ring tube 212 are connected through the tube body. The upper end of the folding tube 215 is fixedly connected to the rope 216. When the rope 216 is released outward, under the action of gravity, the counterweight 214 drives the upper ring tube 212 and the lower ring tube 213 below it to move downward, ensuring the stability of the path when moving up and down and preventing deviation.

[0038] Furthermore, a motor box is fixedly installed on the outside of the cylinder 21, and a take-up box is connected to one end of the cylinder 21. The upper end of the rope 216 is stored in the take-up box, and the up and down movement of the counterweight 214 is controlled by the winding and unwinding of the rope 216.

[0039] Furthermore, the inside of the cover 12 is provided with an inverted conical frame 121, which is used to guide the flue gas to the outer ring area, so that the flue gas enters the vent 2131 and is promptly drawn out, preventing the flue gas from accumulating inside the kneader 11 and causing the air pressure to rise and leak. The counterweight 214, the upper ring pipe 212, and the lower ring pipe 213 are located between the outer wall of the conical frame 121 and the inner wall of the cover 12.

[0040] Furthermore, the connecting pipe 2121 connecting the upper ring pipe 212 and the lower ring pipe 213 has a sealing gasket 2122 fixed inside. It is a circular plate structure composed of multiple blades in contact with each other. Under the action of wind force and negative pressure, it expands, allowing flue gas to pass through when there is wind force and negative pressure. When the external force disappears, it automatically closes to form a dynamic sealing effect.

[0041] It is understood that this utility model can draw in smoke at close range at different heights during the kneading operation, and switch to the cleaning mechanism during material feeding. The wind is blown obliquely downwards towards the inner wall of the kneader 11, thereby causing the adhering material to detach and forming a sufficient feeding effect, which also forms a cleaning effect.

[0042] A specific application of the operation process in this embodiment is as follows: During the material feeding operation, as the liquid level drops after the material is discharged, some material adheres to the inner wall of the kneader 11. At this time, the rotating motor on the outside of the drive cylinder 21 releases the rope 216, which, under the gravity of the counterweight 214, presses down the upper ring pipe 212 and the lower ring pipe 213 below it. At this time, the folded pipe 215 on the counterweight 214, which is connected to the air extraction pipe 211 on the cylinder 21, is vertically stretched. As the upper ring pipe 212 descends, the fan on the outside of the on / off valve 2111 is driven, and the connection between the air extraction pipe 211 and the folded pipe 215 is cut off. At this time, the air force released by the fan fills the upper ring pipe 212, and under the action of pressure... By breaking through the sealing gasket 2122, and guided by the arc structure of the upper ring pipe 212 and the vent 2131, the air is blown into the interior of the kneader 11, thereby blowing off the adhering material and improving the fullness of material feeding. Furthermore, when the upper ring pipe 212 moves to the bottom area, the passage can be opened by the on-off valve 2111 to connect the suction pipe 211 with the folded pipe 215. Under the negative pressure of the suction pipe 211, the upper ring pipe 212 absorbs the flue gas at close range in the bottom area and then discharges it outward. In this way, the placement height of the upper ring pipe 212 can also be controlled according to the amount of material being kneaded, thereby achieving the effect of close-range suction of flue gas during the kneading operation.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A raw material mixing and kneading device for graphite sagger production, characterized in that: Includes a kneader (11) and its upper cover (12); The upper end of the cover (12) near the edge is provided with a cylinder (21), and an air extraction pipe (211) is installed at the upper end to connect to an external negative pressure device. The inner edge of the cover (12) is provided with an upper ring pipe (212) that moves up and down and a lower ring pipe (213) below it. The inside of the cylinder (21) is provided with a folded pipe (215) that connects the air extraction pipe (211) and the upper ring pipe (212). The lower end of the lower ring pipe (213) is provided with an air vent (2131) which is obliquely facing the inner wall of the kneader (11). The lower end of the air extraction pipe (211) is provided with a shut-off valve (2111). A fan is fixedly installed on the outside of the shut-off valve (2111).

2. The graphite sagger raw material mixing device according to claim 1, characterized in that: A counterweight (214) is fitted on the outer side of the upper ring tube (212), and the folding tube (215) and the upper ring tube (212) are connected through the tube body. The upper end of the folding tube (215) is fixedly connected to the rope (216).

3. The raw material mixing device for graphite sagger production according to claim 1, characterized in that: A motor box is fixedly installed on the outside of the cylinder (21), and a take-up box is connected to one end of the cylinder (21). The upper end of the rope (216) is stored in the take-up box.

4. The raw material mixing device for graphite sagger production according to claim 2, characterized in that: The inside of the cover (12) is provided with an inverted conical frame (121) for guiding the flue gas to the outer ring area.

5. The raw material mixing device for graphite sagger production according to claim 1, characterized in that: The connecting pipe (2121) connecting the upper ring pipe (212) and the lower ring pipe (213) has a sealing gasket (2122) fixed inside for dynamically sealing the communication channel.

6. The raw material mixing device for graphite sagger production according to claim 4, characterized in that: The counterweight (214) is located between the outer wall of the conical frame (121) and the inner wall of the cover (12), and the upper ring tube (212) moves down by gravity.

7. The raw material mixing device for graphite sagger production according to claim 1, characterized in that: The exhaust pipe (211) and the air outlet pipe of the fan outside the on / off valve (2111) are alternately connected to the folded pipe (215).

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