Multistage screening linkage artificial graphite granulating and forming device

Abstract

The utility model discloses a multistage screening linkage artificial graphite granulation forming device, and the utility model relates to graphite granulation technical field. This multistage screening linkage artificial graphite granulation forming device includes support frame, and the top of support frame is provided with forming mechanism, is used for producing graphite particle, and the forming mechanism includes: extrusion subassembly, including fixed mounting in support frame top's inlet pipe, the bottom fixed mounting of inlet pipe has quartz tube, the outside of quartz tube is embedded and is installed with heating coil, the outside of quartz tube is provided with the protection tube, and the gas pump is established with filter plate to the rear end of screening pipe, and the stable airflow is formed in the screening pipe inside when the gas pump works, and a small amount of dust produced in the granulation and screening process is adsorbed to the filter plate, and the dust is intercepted by filter plate, and clean airflow is discharged through the adapter pipe, avoids the dust to accumulate or spread outward in the device inside, prevents environmental pollution, and reduces the safety risk of graphite dust explosion.

Description

Technical Field

[0001] This utility model relates to the field of graphite granulation technology, specifically a multi-stage screening and linkage artificial graphite granulation and molding device. Background Technology

[0002] The multi-stage screening and linkage artificial graphite granulation and molding device is a specialized piece of equipment designed for the entire process of "raw material pretreatment - granulation and molding - quality control" in artificial graphite production. Its core function is to solve the problems of uneven raw material particle size, poor particle quality and low production efficiency in traditional granulation processes by accurately classifying through multi-stage screening and linkage control of granulation and molding. Ultimately, it produces artificial graphite particles with uniform particle size, stable density and qualified performance.

[0003] The existing utility model patent with publication number CN209302908U discloses a granulator for processing artificial graphite with screening function. It includes a shell, a motor, a heating chamber, and an extrusion chamber. A screening chamber is located on the top of the shell, with a feed inlet at the top. A crushing rod is connected inside the feed inlet. The motor is mounted on the outer wall of the screening chamber, and a screen is connected to the output end of the motor. The middle of the motor output end is connected to the end of the crushing rod via a belt. The screen is located inside the screening chamber, and a guide plate is fixed to the edge of the screen. A placement groove is formed on the top of the inner side of the screening chamber, and a rotating rod is installed on the inner wall of the placement groove. A connecting rod is located on the outer side of the rotating rod. This granulator for processing artificial graphite with screening function not only facilitates the screening and sorting of raw materials, improving the quality of graphite processing, but also reduces clogging during raw material screening.

[0004] When the above-mentioned device is in use, the screened raw materials flow directly into the heating chamber from the first discharge port. During the process, graphite dust is easily generated. There is no dust collection or sealing structure. The flying dust will pollute the environment, and graphite dust has an explosion risk, posing a safety hazard. At the same time, when the screen rotates, the raw materials are easily concentrated at the edge of the screen due to centrifugal force, and there is less raw material in the middle area, resulting in low utilization of the screening area. Some raw materials are discharged without being fully screened. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a multi-stage screening and linkage artificial graphite granulation and molding device, which solves the problems of safety hazards caused by dust diffusion and insufficient screening.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-stage screening and linkage artificial graphite granulation and molding device includes a support frame, and a molding mechanism is arranged above the support frame for producing graphite granules. The molding mechanism includes: An extrusion assembly includes a feed pipe fixedly installed on the top of a support frame. A quartz tube is fixedly installed at the bottom end of the feed pipe. A heating coil is fitted onto the outside of the quartz tube. A protective tube is provided on the outside of the quartz tube. A heat insulation tube is fixedly installed on the inner wall of the protective tube. An extrusion tube is fixedly installed at one end of the quartz tube. A cutting disc is sleeved on the front end of the extrusion tube. A toothed ring is fixedly installed on the outside of the cutting disc. A drive motor is fixedly installed above the extrusion tube. A gear is fixedly installed on the outside of the shaft of the drive motor. An auger is provided inside the feed pipe and the extrusion tube. One end of the auger is connected to a transmission motor. A screening component, located below the extrusion component, is used to screen graphite particles.

[0007] Preferably, the screening assembly includes a screening pipe fixedly installed above the support frame, a limiting plate fixedly installed at the front end of the screening pipe, a discharge motor fixedly installed on one side of the limiting plate, a drive shaft connected to the end of the discharge motor shaft, a screen plate fitted into the lower part of the screening pipe, a receiving hopper fixedly installed at the lower part of the screening pipe, a filter plate fitted into the rear end of the screening pipe, a transfer pipe fixedly installed at the rear end of the screening pipe, and an air pump connected to the rear end of the transfer pipe.

[0008] Preferably, the two ends of the quartz tube are connected to the feed tube and the extrusion tube respectively, the top of the feed tube is provided with a funnel-shaped structure, the two ends of the protective tube are connected to the feed tube and the extrusion tube respectively, and the front end of the extrusion tube is provided with an array of openings.

[0009] Preferably, the cutting disc and the extrusion tube are rotatably connected, the gear ring and the gear mesh with each other, the feed pipe and the auger inside the extrusion tube are rotatably connected to the feed pipe and the extrusion tube respectively, and the drive motor on the front side of the extrusion tube is fixedly connected to the screening pipe.

[0010] Preferably, the top of the screening tube is rotatably connected to the cutting disc, the bottom of the limiting plate is provided with a fan-shaped notch, the outer side of the drive shaft is provided with a spiral structure, and the drive shaft is rotatably connected to the limiting plate and the screening tube.

[0011] Preferably, the sieve plate has three pieces with the sieve hole diameter increasing from back to front, the receiving hopper is fixedly installed below the sieve plate, the rear end of the transfer pipe is fixedly connected to the air inlet of the air pump, and the air pump is fixedly connected to the sieve pipe.

[0012] Beneficial effects This invention provides a multi-stage screening and linkage artificial graphite granulation and molding device. Compared with the prior art, it has the following advantages: (1) This multi-stage screening and linkage artificial graphite granulation and molding device effectively solves the hidden danger of dust diffusion through the combination of closed structure design and airflow control. First, the granulation process from material feeding, heating, extrusion to cutting is completed in closed components such as feeding pipe, quartz tube, and extrusion tube. The cut graphite particles fall directly into the equally closed screening pipe, reducing the contact between the material and the outside air and reducing the possibility of dust emission from the source. Second, an air pump and filter plate are set at the rear end of the screening pipe. When the air pump is working, a stable airflow is formed inside the screening pipe, which adsorbs the small amount of dust generated during granulation and screening to the filter plate. The dust is intercepted by the filter plate, and the clean airflow is discharged through the transfer pipe, avoiding the accumulation of dust inside the device or its diffusion to the outside, which not only prevents environmental pollution but also reduces the safety risk of graphite dust explosion.

[0013] (2) This multi-stage screening and linkage artificial graphite granulation and molding device improves the screening adequacy by optimizing the material conveying method and coordinating with the multi-stage screening structure. On the one hand, a spiral structure is provided on the outside of the drive shaft inside the screening tube. When the unloading motor drives the drive shaft to rotate, the spiral structure can uniformly push the graphite particles to move from back to front in the screening tube, avoiding the graphite particles from concentrating in a certain area of ​​the screening tube due to centrifugal force or gravity, ensuring that each graphite particle can fully contact the screen plate, and improving the screening area utilization rate of the screen plate; on the other hand, three screen plates with screen hole diameters increasing from back to front are set in the screening tube. The graphite particles pass through the screen plates with different hole diameters in sequence under the drive shaft, realizing multi-stage screening from fine to coarse. It can not only accurately separate graphite particles of different sizes, but also avoid the problem of incomplete screening caused by a large span of single screening hole diameter, ensuring that the final collected graphite particles have a uniform particle size. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the protective pipe of this utility model; Figure 3 This is a schematic diagram of the sieve plate installation structure of this utility model; Figure 4 This is a schematic diagram of the connection and installation structure between the screening tube and the extrusion tube of this utility model; In the diagram: 1. Support frame; 2. Forming mechanism; 21. Extrusion assembly; 211. Feed pipe; 212. Quartz tube; 213. Heating coil; 214. Protective tube; 215. Insulation tube; 216. Extrusion tube; 217. Cutting disc; 218. Gear ring; 219. Drive motor; 2110. Gear; 2111. Screw; 2112. Transmission motor; 22. Screening assembly; 221. Screening tube; 222. Limiting plate; 223. Discharge motor; 224. Drive shaft; 225. Screen plate; 226. Receiving hopper; 227. Filter plate; 228. Transfer pipe; 229. Air pump. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a multi-stage screening and linkage artificial graphite granulation and molding device includes a support frame 1, and a molding mechanism 2 is arranged above the support frame 1 for producing graphite granules. The molding mechanism 2 includes an extrusion assembly 21, including a feed pipe 211 fixedly installed on the top of the support frame 1, a quartz tube 212 fixedly installed at the bottom end of the feed pipe 211, a heating coil 213 embedded on the outside of the quartz tube 212, a protective tube 214 arranged on the outside of the quartz tube 212, a heat insulation tube 215 fixedly installed on the inner wall of the protective tube 214, an extrusion tube 216 fixedly installed at one end of the quartz tube 212, a cutting disc 217 sleeved at the front end of the extrusion tube 216, a toothed ring 218 fixedly installed on the outside of the cutting disc 217, and a drive motor 219 fixedly installed above the extrusion tube 216. A gear 2110 is fixedly installed on the outside of the rotating shaft. An auger 2111 is installed inside the feed pipe 211 and the extrusion pipe 216. One end of the auger 2111 is connected to a drive motor 2112. The two ends of the quartz tube 212 are connected to the feed pipe 211 and the extrusion pipe 216 respectively. A funnel-shaped structure is provided at the top of the feed pipe 211. The two ends of the protective tube 214 are connected to the feed pipe 211 and the extrusion pipe 216 respectively. An array of openings is provided at the front end of the extrusion pipe 216. The cutting disc 217 is rotatably connected to the extrusion pipe 216. The gear ring 218 meshes with the gear 2110. The auger 2111 inside the feed pipe 211 and the extrusion pipe 216 are rotatably connected to the feed pipe 211 and the extrusion pipe 216 respectively. The drive motor 2112 on the front side of the extrusion pipe 216 is fixedly connected to the screening pipe 221.

[0017] Specifically, the material inside the feed pipe 211 is conveyed to the quartz tube 212 through the auger 2111 inside the feed pipe 211. The material is heated by the heating coil 213 on the outside of the quartz tube 212. While being heated, the material continues to move under the drive of the auger 2111 inside the feed pipe 211 and enters the extrusion tube 216 through the auger 2111 inside the extrusion tube 216. Under the constraint of the opening structure at the end of the extrusion tube 216, it is discharged in a strip shape. The drive motor 219 can drive the cutting disc 217 to rotate through the gear 2110 and the gear ring 218. The cutting disc 217 cuts the material when it rotates. After being cut, the material falls into the screening tube 221, completing the granulation process.

[0018] The screening assembly 22, located below the extrusion assembly 21, is used to screen graphite particles. The screening assembly 22 includes a screening pipe 221 fixedly installed above the support frame 1. A limiting plate 222 is fixedly installed at the front end of the screening pipe 221. A discharge motor 223 is fixedly installed on one side of the limiting plate 222. A drive shaft 224 is connected to the end of the shaft of the discharge motor 223. A screen plate 225 is fitted below the screening pipe 221. A receiving hopper 226 is fixedly installed below the screening pipe 221. A filter plate 227 is fitted at the rear end of the screening pipe 221. A filter plate 227 is fixedly installed at the rear end of the screening pipe 221. The adapter pipe 228 is connected to the rear end of the air pump 229. The top of the screening pipe 221 is rotatably connected to the cutting disc 217. The bottom of the limiting plate 222 is provided with a fan-shaped notch. The outer side of the drive shaft 224 is provided with a spiral structure. The drive shaft 224 is rotatably connected to the limiting plate 222 and the screening pipe 221. There are three screen plates 225 with the screen hole diameter increasing from back to front. The receiving hopper 226 is fixedly installed below the screen plate 225. The rear end of the adapter pipe 228 is fixedly connected to the air inlet of the air pump 229. The air pump 229 is fixedly connected to the screening pipe 221.

[0019] Specifically, the unloading motor 223 can drive the drive shaft 224 to rotate. When the drive shaft 224 rotates, it can transport the graphite particles that fall into the screening tube 221 forward and pass through the three screen plates 225 one by one. The graphite particles are screened by the screen plates 225, and the discharge position of the graphite particles is restricted by the receiving hopper 226 at the bottom to complete the screening process. The material that cannot pass through the screen holes of the screen plate 225 can be discharged through the fan-shaped opening structure below the limiting plate 222.

[0020] Specifically, the drive motor 219 is model YE3-802-4, the transmission motor 2212 is model YE3-90S-4, the unloading motor 223 is model Y801-4, and the air pump 229 is model Ingersoll-Rand-SSR-EP100. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] During operation, material enters through the funnel-shaped structure at the top of the feed pipe 211. The drive motor 2112 drives the auger 2111 inside the feed pipe 211 to rotate, conveying the material into the quartz tube 212. The heating coil 213 on the outside of the quartz tube 212 heats the material, while the heat insulation tube 215 on the inner wall of the protective tube 214 reduces heat loss. The heated material is pushed into the extrusion tube 216 by the auger 2111, and further conveyed by the auger 2111 inside the extrusion tube 216. Finally, it is discharged in strips from the opening array at the front end of the extrusion tube 216. Subsequently, the drive motor 219 starts, and the gear 2110 on the outside of its shaft drives the gear ring 218 on the outside of the cutting disc 217 to rotate, causing the cutting disc 217 to rotate. 7. The extrusion tube 216 rotates to cut the strip-shaped material into graphite particles. The graphite particles fall into the screening tube 221 below. The unloading motor 223 drives the transmission shaft 224 to rotate. The spiral structure on the outside of the transmission shaft 224 pushes the graphite particles to move from back to front in the screening tube 221. They pass through three screen plates 225 with increasing screen hole diameters from back to front. Graphite particles that meet the hole diameter requirements fall into the receiving hopper 226 below through the screen plates 225. Graphite particles that do not pass through the screen holes are finally discharged from the fan-shaped notch at the bottom of the limiting plate 222. At the same time, the air pump 229 starts and draws air from the rear end of the screening tube 221 through the transfer pipe 228. The filter plate 227 at the rear end of the screening tube 221 filters the dust in the airflow to prevent dust from spreading.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening and linkage artificial graphite granulation and molding device, characterized in that: The system includes a support frame (1), and a forming mechanism (2) is provided above the support frame (1) for producing graphite particles. The forming mechanism (2) includes: The extrusion assembly (21) includes a feed pipe (211) fixedly installed on the top of the support frame (1). A quartz tube (212) is fixedly installed at the bottom end of the feed pipe (211). A heating coil (213) is fitted onto the outside of the quartz tube (212). A protective tube (214) is provided on the outside of the quartz tube (212). A heat insulation tube (215) is fixedly installed on the inner wall of the protective tube (214). An extrusion tube (216) is fixedly installed at one end of the quartz tube (212). A cutting disc (217) is sleeved on the front end of the extrusion tube (216). A toothed ring (218) is fixedly installed on the outer side of the cutting disc (217). A drive motor (219) is fixedly installed on the top of the extrusion tube (216). A gear (2110) is fixedly installed on the outer side of the shaft of the drive motor (219). An auger (2111) is provided inside the feed tube (211) and the extrusion tube (216). One end of the auger (2111) is connected to a transmission motor (2112). A screening component (22) is located below the extrusion component (21) for screening graphite particles.

2. The multi-stage screening and linkage artificial graphite granulation and molding device according to claim 1, characterized in that: The screening assembly (22) includes a screening pipe (221) fixedly installed above the support frame (1). A limiting plate (222) is fixedly installed at the front end of the screening pipe (221). A discharge motor (223) is fixedly installed on one side of the limiting plate (222). A transmission shaft (224) is connected to the end of the shaft of the discharge motor (223). A screen plate (225) is fitted and installed below the screening pipe (221). A receiving hopper (226) is fixedly installed below the screening pipe (221). A filter plate (227) is fitted and installed at the rear end of the screening pipe (221). A transfer pipe (228) is fixedly installed at the rear end of the screening pipe (221). An air pump (229) is connected to the rear end of the transfer pipe (228).

3. The multi-stage screening and linkage artificial graphite granulation and molding device according to claim 2, characterized in that: The two ends of the quartz tube (212) are connected to the feed tube (211) and the extrusion tube (216) respectively. The top of the feed tube (211) is provided with a funnel-shaped structure. The two ends of the protective tube (214) are connected to the feed tube (211) and the extrusion tube (216) respectively. The front end of the extrusion tube (216) is provided with an array of openings.

4. The multi-stage screening and linkage artificial graphite granulation and molding device according to claim 2, characterized in that: The cutting disc (217) and the extrusion tube (216) are rotatably connected. The gear ring (218) and the gear (2110) mesh with each other. The auger (2111) inside the feed pipe (211) and the extrusion tube (216) are rotatably connected to the feed pipe (211) and the extrusion tube (216) respectively. The drive motor (2112) on the front side of the extrusion tube (216) is fixedly connected to the screening tube (221).

5. The multi-stage screening and linkage artificial graphite granulation and molding device according to claim 2, characterized in that: The top of the screening tube (221) is rotatably connected to the cutting disc (217), the bottom of the limiting plate (222) is provided with a fan-shaped notch, the outer side of the drive shaft (224) is provided with a spiral structure, and the drive shaft (224) is rotatably connected to the limiting plate (222) and the screening tube (221).

6. The multi-stage screening and linkage artificial graphite granulation and molding device according to claim 2, characterized in that: The sieve plate (225) has three pieces and the sieve hole diameter increases from back to front. The receiving bucket (226) is fixedly installed below the sieve plate (225). The rear end of the transfer pipe (228) is fixedly connected to the air inlet end of the air pump (229). The air pump (229) is fixedly connected to the screening pipe (221).

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