Bamboo fiber particle sorting device
By preventing bamboo fiber particles from sticking together through cutting inside the pelletizing cylinder and separating them with water, and by combining a drying fan and a multi-stage sorting plate for multi-stage screening, the problems of adhesion and low sorting efficiency during the bamboo powder extruder crushing process are solved, thus improving stability and efficiency.
Patent Information
- Application Number
- CN202422917242.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Traditional bamboo powder extruders tend to stick to the cutter head during the crushing process, causing the granules to clump together, resulting in unstable performance. In addition, traditional sorting devices are inefficient.
The bamboo fiber raw material is cut by a slitting disc inside the pelletizing cylinder, and then subjected to multi-stage screening through water separation and a drying conveyor belt combined with a drying fan. Water separation is used to prevent particles from sticking together, and after drying, the particles are screened in multiple stages on a multi-stage sorting plate.
It effectively prevents granular material from sticking together, improves the stability and sorting efficiency of granular material, reduces the space required for screening, and achieves efficient granular sorting.
Smart Images

Figure CN223790794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bamboo fiber processing technology, and in particular to a bamboo fiber particle sorting device. Background Technology
[0002] Bamboo powder is one of the important raw materials for making disposable tableware. Bamboo powder is formed by crushing and grinding bamboo or bamboo scraps. When injection molding disposable tableware, bamboo powder is often mixed with auxiliary materials first, and then made into granules. The granules are dried and then packaged and sent to tableware companies for melting and injection molding. Making them into granules ensures that the powder is not easily contaminated during transportation. Moreover, the performance of bamboo powder is more stable after being granulated with auxiliary materials. Traditionally, bamboo powder is extruded by an extruder, and a cutter disc is installed at the extruder outlet to cut it into granules. However, due to the high viscosity of the mixture in the extruder, it is easy to stick to the cutter disc during cutting. At the same time, the cut granules are easy to stick together, resulting in lumpy material. The performance of lumpy material is unstable. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a bamboo fiber particle sorting device with reasonable structure and good performance.
[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: a bamboo fiber particle sorting device, comprising an extruder, wherein a pelletizing cylinder is installed at the outlet of the extruder, a slitting disc driven by a motor is installed inside the pelletizing cylinder, a water supply pipe is installed at the bottom of the pelletizing cylinder, a mixing pipe is installed at the top of the pelletizing cylinder, the outlet of the mixing pipe is inclined downward and connected to the primary filter box, the primary filter box is connected to the inlet of the sorting box, a drying conveyor belt is inclinedly installed inside the sorting box, a drying fan is installed inside the sorting box above the drying conveyor belt, a sorting unit is installed below the outlet of the drying conveyor belt, and the sorting box has more than 2 sorting outlets.
[0005] The sorting unit includes a vertical plate, which is vertically installed below the higher end of the drying conveyor belt. A sorting zone is formed between the vertical plate and the inner wall of the sorting box. A first sorting plate and a second sorting plate are installed at an angle in the sorting zone. The first and second sorting plates are staggered from top to bottom in the sorting zone. The higher end of the highest first sorting plate is connected and fixed to the vertical plate. The other end of the first sorting plate extends downward at an angle to above the higher end of the next second sorting plate. The higher end of the second sorting plate is connected to the inner wall of the sorting box. The lower end of the second sorting plate extends to above the higher end of the next first sorting plate. A particle collecting plate is installed below each sorting plate, and the particle collecting plate is connected to the corresponding sorting outlet.
[0006] The mixing pipe outlet is connected to the top of the primary filter box. A primary filter screen is installed at an incline inside the primary filter box. A particle guide plate is provided on the lower end of the primary filter box. The outlet of the particle guide plate extends through the sorting box to the upper end of the drying conveyor belt. A drain outlet is provided at the bottom of the primary filter box.
[0007] In this invention, after adopting the above-mentioned solution, the water supply pipe supplies water into the pelletizing cylinder, and the extruder extrudes the bamboo fiber raw material into the water inside the pelletizing cylinder. The motor drives the slitting disc to rotate and pelletize the extruded bamboo fiber raw material. The pelletized material is mixed with water to prevent adjacent pellets from sticking together. With the continuous flow of water from the water supply pipe, the water mixed with pellets flows out from the mixing pipe into the primary filter box. Under the action of the primary filter screen, the pellets and water are separated. The water is discharged from the drain outlet, and the pellets are guided by the pellet guide plate to fall onto the drying conveyor belt. The drying conveyor belt drives the pellets to move. When passing under the drying fan, the drying fan dries the passing pellets (or hot air drying is performed by adding heating tubes). The dried pellets fall onto the first sorting plate and the second sorting plate for multi-stage screening. The sorting plates are distributed in multiple stages from top to bottom, which can effectively reduce the space occupied by screening and realize multi-stage screening. The structure after adopting this solution is reasonable and the use effect is good. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0009] Figure 2 This is a partial illustration of the present utility model. Detailed Implementation
[0010] The present invention will be further described below with reference to all the accompanying drawings. A preferred embodiment of the present invention is shown in the accompanying drawings. Figure 1 and appendix Figure 2 The bamboo fiber particle sorting device described in this embodiment includes an extruder 1, wherein a pelletizing cylinder 2 is installed at the outlet of the extruder 1, a slitting disc 3 driven by a motor is installed inside the pelletizing cylinder 2, a water supply pipe 4 is installed at the bottom of the pelletizing cylinder 2, a mixing pipe 5 is installed at the top of the pelletizing cylinder 2, the outlet of the mixing pipe 5 is inclined downward and connected to the primary filter box 6, the primary filter box 6 is connected to the inlet of the sorting box 7, a drying conveyor belt 8 is inclinedly installed inside the sorting box 7, a drying fan 14 is installed inside the sorting box 7 above the drying conveyor belt 8, a sorting unit is installed below the outlet of the drying conveyor belt 8, and the sorting box 7 has more than 2 sorting outlets.
[0011] The sorting unit includes a vertical plate 9, which is vertically installed below the higher end of the drying conveyor belt 8. A sorting zone is formed between the vertical plate 9 and the inner wall of the sorting box 7. A first sorting plate 13 and a second sorting plate 12 are installed at an angle in the sorting zone. The first sorting plate 13 and the second sorting plate 12 are distributed alternately from top to bottom in the sorting zone. The higher end of the highest first sorting plate 13 is connected and fixed to the vertical plate 9. The other end of the first sorting plate 13 extends downward at an angle to above the higher end of the next layer of the second sorting plate 12. The higher end of the second sorting plate 12 is connected to the inner wall of the sorting box 7. The lower end of the second sorting plate 12 extends to above the higher end of the next layer of the first sorting plate 13. A particle collecting plate 11 is installed below each sorting plate and is connected to the corresponding sorting outlet.
[0012] The outlet of the mixing pipe 5 is connected to the top of the primary filter box 6. The primary filter box 6 is installed at an incline. The primary filter box 6 at the lower end of the primary filter plate 10 is provided with a particle guide plate. The outlet of the particle guide plate passes through the sorting box 7 and extends to the upper part of the lower end of the drying conveyor belt 8. The bottom of the primary filter box 6 is provided with a drainage outlet.
[0013] After adopting the above scheme, the water supply pipe supplies water into the pelletizing cylinder, and the extruder extrudes the bamboo fiber raw material into the water inside the pelletizing cylinder. The motor drives the slitting disc to rotate and pelletize the extruded bamboo fiber raw material. The pelletized material is mixed with water to prevent adjacent pellets from sticking together. With the continuous flow of water from the water supply pipe, the water mixed with pellets flows out from the mixing pipe into the primary filter box. Under the action of the primary filter screen, the pellets and water are separated. The water is discharged from the drain outlet, and the pellets are guided by the pellet guide plate to fall onto the drying conveyor belt. The drying conveyor belt drives the pellets to move. When passing under the drying fan, the drying fan dries the passing pellets (or hot air drying is performed by adding heating tubes). The dried pellets fall onto the first sorting plate and the second sorting plate for multi-stage screening. The sorting plates are distributed in multiple stages from top to bottom, which can effectively reduce the space occupied by screening and realize multi-stage screening. The structure after adopting this scheme is reasonable and the use effect is good.
[0014] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.
Claims
1. A bamboo fiber particle sorting device, comprising an extruder (1), characterized in that: A pelletizing cylinder (2) is installed at the outlet of the extruder (1). A slitting disc (3) driven by a motor is installed inside the pelletizing cylinder (2). A water supply pipe (4) is installed at the bottom of the pelletizing cylinder (2). A mixing pipe (5) is installed at the top of the pelletizing cylinder (2). The outlet of the mixing pipe (5) is inclined downward and connected to the primary filter box (6). The primary filter box (6) is connected to the inlet of the sorting box (7). A drying conveyor belt (8) is installed inclined inside the sorting box (7). A drying fan (14) is installed inside the sorting box (7) above the drying conveyor belt (8). A sorting unit is installed below the outlet of the drying conveyor belt (8). The sorting box (7) has more than 2 sorting outlets.
2. The bamboo fiber particle sorting device according to claim 1, characterized in that: The sorting unit includes a vertical plate (9), which is vertically installed below the higher end of the drying conveyor belt (8). A sorting zone is formed between the vertical plate (9) and the inner wall of the sorting box (7). The sorting zone is inclinedly equipped with a first sorting plate (13) and a second sorting plate (12). The first sorting plate (13) and the second sorting plate (12) are staggered in the sorting zone from top to bottom. The higher end of the highest layer of the first sorting plate (13) is connected and fixed to the vertical plate (9). The other end of the first sorting plate (13) extends downwards at an angle to the upper end of the next layer of the second sorting plate (12). The higher end of the second sorting plate (12) is connected to the inner wall of the sorting box (7). The lower end of the second sorting plate (12) extends to the upper end of the next layer of the first sorting plate (13). A particle collecting plate (11) is installed below each sorting plate. The particle collecting plate (11) is connected to the corresponding sorting outlet.
3. The bamboo fiber particle sorting device according to claim 1, characterized in that: The outlet of the mixing pipe (5) is connected to the top of the primary filter box (6). The primary filter box (6) is installed at an incline. The primary filter box (6) at the lower end of the primary filter box (6) is provided with a particle guide plate. The outlet of the particle guide plate extends through the sorting box (7) to the upper end of the lower end of the drying conveyor belt (8). The bottom of the primary filter box (6) is provided with a drainage outlet.