Filling device for graphite crucible

Abstract

The utility model relates to the technical field of graphite crucibles, in particular to a filling device for a graphite crucible. Comprising a hopper assembly and a discharging assembly, the discharging assembly is arranged below the hopper assembly, and the hopper assembly communicates with the discharging assembly; the hopper assembly comprises a hopper body and a transition bearing, the hopper body is of a spindle-shaped structure, the top and the bottom of the hopper body are each of an opening structure, a feeding port is formed in the top of the hopper body, the transition bearing is arranged at the opening position of the bottom of the hopper body, and the discharging assembly is connected with the transition bearing. The filling device can ensure that materials are uniformly distributed in the crucible, meanwhile, the charging efficiency is greatly improved, meanwhile, powder can be more compact, gas exhaust in gaps of the powder reduces the possibility of oxidation reaction between carbon and oxygen in the graphitization process, and the product percent of pass is prevented from being reduced. The graphite crucible filling device is mainly applied to filling of graphite crucibles.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite crucibles, and more particularly to a filling device for a graphite crucible. Background Art

[0002] Graphitization is the process of transforming the chaotic, irregular arrangement of carbon atoms into a hexagonal planar network under high temperature conditions, forming a graphite microcrystal structure. Graphitization can improve the electrical conductivity, thermal conductivity, corrosion resistance, and friction resistance of graphite-based anode materials. Temperature significantly influences the development of the microcrystal structure during graphitization, typically reaching temperatures as high as 2800°C. Higher temperatures result in more refined microcrystal structures.

[0003] Currently, a key step in the traditional graphitization process for anode materials is the precise and uniform filling of a high-temperature crucible with anode materials. This process has long relied on manual labor. Workers manually add graphite powder or other anode materials to the crucible one by one, a labor-intensive and inefficient process. The amount and distribution of each charge are subject to human influence and difficult to precisely control. Next, to improve the density and uniformity of the material within the crucible, a handheld vibrator is often used for compaction. However, this manual method not only increases the worker's workload but also poses safety risks. Holding a vibrating tool in high-temperature environments for extended periods can easily lead to burns or operator errors due to fatigue. Furthermore, since it's difficult to maintain a constant vibration intensity and frequency, compaction is often unsatisfactory, resulting in uneven material distribution, which in turn affects subsequent graphitization and product quality. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the present invention provides a filling device for a graphite crucible. This filling device ensures uniform distribution of material within the crucible, significantly improving charging efficiency. Furthermore, the powder is more compacted, and gas discharge from the gaps between the powder reduces oxidation reactions between carbon and oxygen during the graphitization process, preventing a decrease in product quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A filling device for a graphite crucible, comprising a hopper assembly and a discharge assembly, wherein the discharge assembly is arranged below the hopper assembly, and the hopper assembly and the discharge assembly are connected;

[0007] The hopper assembly includes a hopper body and a transition bearing. The hopper body adopts a spindle-shaped structure. The top and bottom of the hopper body are both open structures. A feed port is provided at the top of the hopper body. The transition bearing is provided at the bottom opening position of the hopper body. The unloading assembly is connected to the transition bearing.

[0008] The blanking assembly includes a telescopic blanking hose and a flattening plate. The top of the telescopic blanking hose is connected to the transition bearing. The flattening plate is arranged at the bottom opening of the telescopic blanking hose. A discharge hole is opened on the flattening plate.

[0009] A discharge valve is provided at the bottom of the hopper body, near the transition bearing, and the discharge valve is an electrically controlled valve.

[0010] The hopper body is provided with an exhaust branch pipe, both ends of which are respectively connected to the bottom and the top of the hopper body, and the exhaust branch pipe is communicated with the inner cavity of the hopper body.

[0011] The transition bearing adopts a thrust roller bearing.

[0012] The telescopic discharge hose is a steel wire hose, and the diameter of the telescopic discharge hose is 500 mm.

[0013] The flattening sheet adopts a circular plate structure, the diameter of the flattening sheet is 500 mm, the discharge holes adopt circular holes, and three groups of discharge holes are arranged on the flattening sheet.

[0014] The diameter of the discharge hole is 80 mm.

[0015] The wall thickness of the exhaust branch pipe is 10 mm, and the inner diameter of the exhaust branch pipe is 100 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The spindle-shaped hopper body gradually closes on its top to prevent powder from flying out; the thrust roller bearing can withstand vertical axial force, that is, the downward pressure on the bearing caused by the weight of the telescopic discharge hose and the raw material acting on the tube wall; the exhaust branch pipe can play a ventilating role, balancing the pressure and ensuring that the powder falls naturally from the pipe; the telescopic discharge hose is wrapped with steel wire to ensure that the hose shape is not easily deformed under the weight of the raw material; the flattening plate is in direct contact with the powder in the crucible. When the telescopic discharge hose drives the flattening plate to rotate, the powder can be flattened; during the powder flattening operation, the gaps between the powder are compressed, and the gas is discharged from the holes and then flows into the atmosphere through the branch pipe, completing the flattening and exhausting of the powder. This device can ensure that the material is evenly distributed in the crucible, while greatly improving the loading efficiency. At the same time, the powder can be more compact, and the gas discharge from the gaps between the powder reduces the oxidation reaction between carbon and oxygen during the graphitization process, preventing the decline of product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the flattening sheet of the utility model;

[0020] Figure 3 This is a front perspective view of the utility model;

[0021] In the figure: 1 is the hopper body, 2 is the exhaust branch pipe, 3 is the transition bearing, 4 is the telescopic discharge hose, 5 is the flattening piece, 6 is the discharge hole, 7 is the feed port, and 8 is the discharge valve. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figures 1 to 3 As shown, a filling device for a graphite crucible includes a hopper assembly and a discharge assembly, wherein the discharge assembly is arranged below the hopper assembly, and the hopper assembly and the discharge assembly are connected;

[0025] Preferably, the hopper assembly includes a hopper body 1 and a transition bearing 3. The hopper body 1 adopts a spindle-shaped structure. The top and bottom of the hopper body 1 are both open structures. A feed port 7 is provided at the top of the hopper body 1. The transition bearing 3 is provided at the bottom opening position of the hopper body 1, and the unloading assembly is connected to the transition bearing 3.

[0026] Preferably, the discharge assembly includes a telescopic discharge hose 4 and a flattening piece 5. The top of the telescopic discharge hose is connected to the transition bearing 3. The flattening piece 5 is arranged at the bottom opening of the telescopic discharge hose 4. A discharge hole 6 is opened on the flattening piece 5.

[0027] Preferably, a discharge valve 8 is provided at the bottom of the hopper body 1 , near the transition bearing 3 , and the discharge valve 8 is an electrically controlled valve.

[0028] Preferably, an exhaust branch pipe 2 is provided on the hopper body 1, and both ends of the exhaust branch pipe 2 are respectively connected to the bottom and the top of the hopper body 1. The exhaust branch pipe 2 is connected to the inner cavity of the hopper body 1 to play a ventilation role.

[0029] Preferably, the transition bearing 3 is a thrust roller bearing.

[0030] Preferably, the telescopic feeding hose 4 is a steel hose with a diameter of 500 mm. The steel wire is wrapped inside the telescopic feeding hose 4 to ensure that the shape of the telescopic feeding hose 4 is not easily deformed under the heavy pressure of the raw materials. The maximum extension length of the telescopic feeding hose 4 can reach 2.5 m.

[0031] Preferably, the flattening sheet 5 is a circular plate structure with a diameter of 500 mm. The discharge holes 6 are circular holes, and three groups of discharge holes 6 are provided on the flattening sheet 5 .

[0032] Preferably, the diameter of the discharge hole 6 is 80 mm.

[0033] Preferably, the wall thickness of the exhaust branch pipe 2 is 10 mm, and the inner diameter of the exhaust branch pipe 2 is 100 mm.

[0034] When the discharge valve 8 is opened, the hopper body 1 is connected to the telescopic discharge hose 4, and the feeding process begins. The powder falls through the telescopic discharge hose 4 and leaks out of the discharge hole 6 of the flattening plate 5. The exhaust branch 2 is now connected to atmospheric pressure, balancing the pressure and ensuring that the powder naturally falls through the telescopic discharge hose 4. When the discharge valve 8 is closed, the hopper body 1 is sealed, allowing for the replenishment of raw materials. The integrated rotation of the telescopic discharge hose 2 and the flattening plate 5 flattens the powder, compressing the interstices between the powder, allowing gas to be expelled from the discharge hole 6 and then out of the exhaust branch 2 to the atmosphere, completing the flattening and exhausting of the powder. This compaction of the powder facilitates graphite crystallization, resulting in improved product properties. Furthermore, the removal of interstices reduces the oxidation reaction between carbon and oxygen during the graphitization process, preventing a decrease in product quality.

[0035] Fill the hopper body 1 with graphite negative electrode powder, align the telescopic discharge hose 4, and place it inside the crucible. Inspect the operating environment and filling device to ensure there are no safety hazards. Open the discharge valve 8 and drop the raw material into the crucible. Confirm that the powder level in the crucible is 1000 mm. Close the discharge valve 8 and pause loading. Rotate the telescopic discharge hose 4 and flattening plate 5 to level and vent the powder. Set the rotation timer for 10 minutes. Remove the pipe from the crucible and close the crucible lid for subsequent operations.

[0036] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.

Claims

1. A packing device for a graphite crucible, characterized in that: It includes a hopper assembly and a discharge assembly, wherein the discharge assembly is arranged below the hopper assembly, and the hopper assembly and the discharge assembly are connected; The hopper assembly comprises a hopper body (1) and a transition bearing (3); the hopper body (1) adopts a spindle-shaped structure; the top and bottom of the hopper body (1) are both open structures; a feed port (7) is provided at the top of the hopper body (1); the transition bearing (3) is provided at the bottom opening position of the hopper body (1); and the discharge assembly is connected to the transition bearing (3).

2. A filling device for a graphite crucible according to claim 1, characterized in that: The discharge assembly comprises a telescopic discharge hose (4) and a flattening plate (5), wherein the top of the telescopic discharge hose (4) is connected to the transition bearing (3), the flattening plate (5) is arranged at the bottom opening of the telescopic discharge hose (4), and a discharge hole (6) is provided on the flattening plate (5).

3. A filling device for a graphite crucible according to claim 1, characterized in that: A discharge valve (8) is provided at the bottom of the hopper body (1), near the transition bearing (3), and the discharge valve (8) is an electrically controlled valve.

4. A filling device for a graphite crucible according to claim 1, characterized in that: An exhaust branch pipe (2) is provided on the hopper body (1), and the two ends of the exhaust branch pipe (2) are respectively connected to the bottom and the top of the hopper body (1), and the exhaust branch pipe (2) is connected to the inner cavity of the hopper body (1).

5. The filling device for a graphite crucible according to claim 1, characterized in that: The transition bearing (3) adopts a thrust roller bearing.

6. A filling device for a graphite crucible according to claim 2, characterized in that: The telescopic discharge hose (4) is a steel wire hose, and the diameter of the telescopic discharge hose (4) is 500 mm.

7. A filling device for a graphite crucible according to claim 2, characterized in that: The flattening sheet (5) adopts a circular plate structure, the diameter of the flattening sheet (5) is 500 mm, the discharge holes (6) adopt circular holes, and three groups of the discharge holes (6) are provided on the flattening sheet (5).

8. A filling device for a graphite crucible according to claim 7, characterized in that: The diameter of the discharge hole (6) is 80 mm.

9. A filling device for a graphite crucible according to claim 4, characterized in that: The wall thickness of the exhaust branch pipe (2) is 10 mm, and the inner diameter of the exhaust branch pipe (2) is 100 mm.

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