A granule preparation device
By designing a pellet preparation device that includes a feeding hopper, a guide pipe, a pressing pipe, a guide screw, and a scraper, the problems of low cutting efficiency, high energy consumption, and uneven size of biofuel pellets have been solved, achieving efficient and low-cost pellet production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAI SENDE BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-21
AI Technical Summary
The process of cutting biofuel pellets suffers from problems such as low cutting efficiency, high energy consumption, uneven pellet size, severe wear, and poor raw material adaptability. Existing improvement methods have increased equipment complexity and maintenance costs.
A pellet preparation device including a feeding hopper, a guide pipe, a pressing pipe, a guide screw, and a scraper is designed. The device controls the rotation of the inner rotating rod by driving the transmission belt and pulley with a motor, and uses the guide screw to extrude the pellet material and the scraper to cut it into pellets, thus achieving high-efficiency production.
It improves the cutting efficiency and consistency of biofuel pellets, reduces energy consumption and worker workflow, and lowers equipment complexity and maintenance costs.
Smart Images

Figure CN224524675U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of biofuel preparation technology and relates to a pellet preparation device. Background Technology
[0002] The main drawbacks of biofuel pellet cutting include low cutting efficiency, high energy consumption, uneven pellet size, severe wear, and poor adaptability to raw materials. These drawbacks are primarily related to the performance of the cutting equipment, the physical properties of the raw materials, and the degree of optimization of the process flow. For example, traditional cutting equipment may not be able to effectively handle biomass raw materials with high fiber content, leading to low cutting efficiency and increased energy consumption. Furthermore, differences in the moisture content, density, and hardness of the raw materials also affect the cutting process, resulting in inconsistent pellet sizes.
[0003] Conventional solutions include improving the design of cutting equipment, optimizing cutting process parameters, and using pretreatment techniques. For example, using sharper blades, increasing cutting speed, or employing multi-stage cutting systems can improve cutting efficiency and particle consistency. However, these methods have drawbacks, such as potentially increasing equipment complexity and maintenance costs, and requiring additional energy and time for raw material pretreatment, thus impacting overall production efficiency and cost-effectiveness. Therefore, there is an urgent need for a particle preparation device to address these issues. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a particle preparation device to solve the problems mentioned in the background art.
[0005] This utility model is achieved through the following technical solution: a pellet preparation device, including: a feeding hopper and a transmission belt, wherein the feeding hopper has a rectangular cross-section when viewed from above, and a set of covers is provided on the rear side of the upper end of the feeding hopper; a set of discharge chambers for placing raw materials for biofuel manufacturing is provided inside the feeding hopper; and a set of connecting seats for connecting and fixing to the upper end of the guide is provided at the lower end of the feeding hopper.
[0006] The connecting seat has a flange structure in plan view. The upper end of the feed tube is also provided with a set of connecting seats, and the two sets of connecting seats are sealed together. The inside of the feed tube is connected to the inside of the discharge chamber. The lower end of the feed tube is provided with a set of pressure tubes for introducing biofuel manufacturing raw materials. The lower end of the pressure tube is provided with two sets of lower connecting seats for fixing the pressure tube. The lower end of the lower connecting seat is provided with a set of lower support frames for supporting it. Both sets of lower connecting seats are fixed to the lower support frames by bolts. The inside of the pressure tube is provided with an extrusion chamber for extruding biofuel manufacturing raw materials. The inside of the extrusion chamber is provided with a feed guide spiral for conducting biofuel manufacturing raw materials.
[0007] In a preferred embodiment, the inner diameter of the right side of the guide spiral is the same as the inner diameter of the right side of the extrusion cavity, and a set of inner spiral rods for providing rotational power to the guide spiral are provided in the middle position of the guide spiral.
[0008] In a preferred embodiment, a set of pulleys for providing power to the inner rotating rod is provided on the outer side of the right end of the inner rotating rod. A set of transmission belts for transmitting the motor power is provided on the outer side of the pulleys. In actual use, the operator puts the biofuel manufacturing raw materials into the discharge chamber, and then guides the material into the pressing pipe through the guide pipe. Then the operator starts the motor, and the motor drives the transmission belt and pulleys to rotate. The pulleys drive the inner rotating rod to rotate, and the rotation of the inner rotating rod drives the guide spiral to extrude the biofuel manufacturing raw materials in the extrusion chamber to the left and overflow from the extrusion hole. The operator can adjust the biofuel manufacturing efficiency by controlling the output speed of the motor.
[0009] In a preferred embodiment, the inner side of the lower end of the transmission belt is the motor drive end, and a set of positioning shaft seats for limiting the rotation position of the inner rotating rod is provided on the left side of the pulley. The positioning shaft seats are fixed to the lower support frame by bolts.
[0010] In a preferred embodiment, the left side of the pressure tube is provided with a set of extrusion orifices for extruding biofuel manufacturing raw materials in strip shape, and the left side of the inner rotating rod is provided with a set of scraper blades for cutting the biofuel manufacturing raw materials extruded from the extrusion orifices into strip-shaped particles.
[0011] In a preferred embodiment, the scraper includes four cutting blades. The scraper, the guide screw, and the pulley are all coaxial rotating structures. A set of covers for covering the extrusion orifice is provided on the outer side of the left end of the pressing tube. A set of feeding plates for feeding biofuel pellets is provided at the lower end of the covers. When the biofuel raw material overflows from the extrusion orifice, the scraper rotates coaxially with the guide screw. The scraper can cut the biofuel overflowing from the extrusion orifice, so that the biofuel falls into the upper part of the feeding plate in pellet form and is guided to other collection equipment by the feeding plate, further reducing the workflow of relevant personnel.
[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: In actual use, the staff put the raw materials for biofuel production into the feeding chamber, and then guide the material into the pressing pipe through the guide pipe. Then the staff starts the motor, and the motor drives the transmission belt and pulley to rotate. The pulley drives the inner rotating rod to rotate, and the rotation of the inner rotating rod drives the guide spiral to squeeze the raw materials for biofuel production in the extrusion chamber to the left and overflow from the extrusion hole. The staff can adjust the biofuel production efficiency by controlling the output speed of the motor.
[0013] When the raw materials for biofuel production overflow from the extrusion orifice, the scraper blades rotate coaxially with the guide screw. The scraper blades can cut the biofuel overflowing from the extrusion orifice, so that the biofuel falls into the upper part of the feed plate in granular form, and is guided to other collection equipment through the feed plate, further reducing the workload of relevant personnel. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0015] Figure 1 This is a top view of the left front oblique side of the particle preparation device of this utility model;
[0016] Figure 2 This is a schematic diagram of the left oblique front view of the extrusion hole and the cover in a particle preparation device of this utility model;
[0017] Figure 3 This is a top view of the scraper, guide screw, and inner rotating rod in a particle preparation device according to the present invention.
[0018] Figure 4 This is a top view of the right rear side of a particle preparation device according to the present invention;
[0019] In the diagram: 100-hopper, 110-discharge chamber, 120-connecting seat, 130-guide pipe, 140-pressing pipe, 150-lower connecting seat, 160-fixing bolt, 170-inner rotating rod, 180-positioning shaft seat, 190-pulley, 200-motor, 210-mounting platform, 220-cover, 230-extrusion hole, 240-discharge plate, 250-guide screw, 260-scraper, 270-drive belt. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-4 As the first embodiment of this utility model: a pellet preparation device, including: a feeding hopper 100, an extrusion hole 230, a scraper 260 and a transmission belt 270. The feeding hopper 100 has a rectangular cross-section when viewed from above, and a set of covers is provided on the rear side of the upper end of the feeding hopper 100. The feeding hopper 100 has a set of discharge chambers 110 for placing raw materials for biofuel manufacturing inside, and a set of connecting seats 120 for connecting and fixing to the upper end of the guide material at the lower end of the feeding hopper 100.
[0022] The top cross-section of the connecting seat 120 is a flange structure. The upper end of the feed tube 130 is also provided with a set of connecting seats 120. The two sets of connecting seats 120 are sealed together. The interior of the feed tube 130 is connected to the interior of the discharge chamber 110. The lower end of the feed tube 130 is provided with a set of pressing tubes 140 for introducing biofuel manufacturing raw materials. The lower end of the pressing tube 140 is provided with two sets of lower connecting seats 150 for fixing the pressing tube 140. The lower end of the lower connecting seat 150 is provided with a set of lower support frames for supporting it. Both sets of lower connecting seats 150 are fixed to the lower support frames by bolts. The inside of the pressing tube 140 is provided with an extrusion chamber for extruding biofuel manufacturing raw materials. The inside of the extrusion chamber is provided with a set of feed guide spirals 250 for conducting biofuel manufacturing raw materials.
[0023] The inner diameter of the right side of the guide screw 250 is the same as the inner diameter of the right side of the extrusion cavity. A set of inner spiral rods 170 is provided in the middle of the guide screw 250 to provide rotational power to the guide screw 250.
[0024] A set of pulleys 190 for providing power to the inner rotating rod 170 is provided on the outer side of the right end of the inner rotating rod 170. A set of transmission belts 270 for transmitting power to the motor 200 is provided on the outer side of the pulleys 190. In actual use, the operator puts the biofuel manufacturing raw materials into the discharge chamber 110, and then guides the material into the pressing pipe 140 through the guide pipe 130. Then the operator starts the motor 200. After the motor 200 drives the transmission belt 270 and the pulleys 190 to rotate, the pulleys 190 drive the inner rotating rod 170 to rotate. The rotation of the inner rotating rod 170 drives the guide spiral 250 to extrude the biofuel manufacturing raw materials in the extrusion chamber to the left and overflow from the extrusion hole 230. The operator can adjust the biofuel manufacturing efficiency by controlling the output speed of the motor 200.
[0025] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further, the inner side of the lower end of the transmission belt 270 is the drive end of the motor 200, and a set of positioning shaft seats for limiting the rotation position of the inner rotating rod 170 is provided on the left side of the pulley 190. The positioning shaft seats are fixed to the lower support frame by bolts.
[0026] The left side of the pressure tube 140 is provided with a set of extrusion holes 230 for extruding biofuel manufacturing raw materials in strip shape, and the left side of the inner swivel rod 170 is provided with a set of scraper blades 260 for cutting the biofuel manufacturing raw materials extruded from the extrusion holes 230 into strip-shaped particles.
[0027] The scraper blade 260 includes four cutting blades. The scraper blade 260, the guide screw 250, and the pulley 190 are all coaxial rotating structures. A set of covers 220 for covering the extrusion hole 230 is provided on the outer side of the left end of the pressure tube 140. A set of feeding plates 240 for feeding biofuel pellets is provided at the lower end of the cover 220. When the biofuel raw material overflows from the extrusion hole 230, the scraper blade 260 rotates coaxially with the guide screw 250. The scraper blade 260 can cut the biofuel overflowing from the extrusion hole 230, so that the biofuel falls into the upper end of the feeding plate 240 in pellet form and is guided to other collection equipment by the feeding plate 240, further reducing the workflow of relevant personnel.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A particle preparation apparatus, comprising: The feeding hopper (100), extrusion hole (230), scraper (260) and drive belt (270) are characterized in that: the feeding hopper (100) has a rectangular cross-section when viewed from above, and a set of covers is provided on the rear side of the upper end of the feeding hopper (100); a set of discharge chambers (110) for placing raw materials for biofuel manufacturing is provided inside the feeding hopper (100); and a set of connecting seats (120) for connecting and fixing to the upper end of the guide is provided at the lower end of the feeding hopper (100). The connecting seat (120) has a flange structure in plan view. The upper end of the feed pipe (130) is also provided with a set of the connecting seats (120). The two sets of connecting seats (120) are sealed together. The inside of the feed pipe (130) is connected to the inside of the discharge chamber (110). The lower end of the feed pipe (130) is provided with a set of pressure pipes (140) for introducing biofuel manufacturing raw materials. The lower end of the pressure pipe (140) is provided with two sets of lower connecting seats (150) for fixing the pressure pipe (140). The lower end of the lower connecting seat (150) is provided with a set of lower support frames for supporting it. Both sets of lower connecting seats (150) are fixed to the lower support frames by bolts. The inside of the pressure pipe (140) is provided with a set of extrusion chambers for extruding biofuel manufacturing raw materials. The inside of the extrusion chamber is provided with a set of feed guide spirals (250) for conducting biofuel manufacturing raw materials.
2. The particle preparation apparatus according to claim 1, characterized in that: The inner diameter of the right side of the guide screw (250) is the same as the inner diameter of the right side of the extrusion cavity. A set of inner spiral rods (170) is provided in the middle of the guide screw (250) to provide rotational power to the guide screw (250).
3. The particle preparation apparatus according to claim 2, characterized in that: The inner rotating rod (170) has a set of pulleys (190) on the outer side of the right end for providing power to the inner rotating rod (170), and a set of transmission belts (270) on the outer side of the pulleys (190) for transmitting power to the motor (200).
4. The particle preparation apparatus according to claim 3, characterized in that: The lower inner side of the transmission belt (270) is the drive end of the motor (200). A set of positioning shaft seats (180) for limiting the rotation position of the inner rotating rod (170) is provided on the left side of the pulley (190). The positioning shaft seats (180) are fixed to the lower support frame by bolts.
5. The particle preparation apparatus according to claim 4, characterized in that: The left side of the pressing tube (140) is provided with a set of extrusion holes (230) for extruding biofuel manufacturing raw materials in strip shape, and the left side of the inner swivel rod (170) is provided with a set of scraper blades (260) for cutting the biofuel manufacturing raw materials extruded from the extrusion holes (230) into strip-shaped particles.
6. The particle preparation apparatus according to claim 5, characterized in that: The scraper (260) includes four cutting blades. The scraper (260), the guide spiral (250), and the pulley (190) are all coaxial rotating structures. The left side of the pressure tube (140) is provided with a cover (220) for covering the extrusion hole (230). The lower end of the cover (220) is provided with a feeding plate (240) for feeding biofuel pellets.