A biomass pellet forming machine

Abstract

The utility model discloses a production biomass granule forming machine, including main body, flat die, main rotating shaft, extruding roller, scraper, worm wheel, worm, main motor, blanking disc and discharge chute, the blanking disc surface evenly distributed has a plurality of pinholes, and the blanking disc lower connection has the collection hopper, and this collection hopper is connected with the lifting cylinder through the guide tube, and the discharge outlet of lifting cylinder and main body feed port are erected with the back material groove, the inside rotation of lifting cylinder is installed with the auger shaft, and the bottom of auger shaft is connected with the lifting motor drive through bevel gear no.1, bevel gear no.2 and transmission rod. The utility model discloses through setting the blanking disc of openwork, makes the slag and long strip granule screen at the blanking disc, and the slag then enters the lifting cylinder through the guide tube by the collection hopper, and under the action of the rotating auger shaft, is re -lifted to the feed inlet of main body, carries out re -processing again, not only can improve the long strip granule's product quality, can also recycle and utilize to the slag.

Description

Technical Field

[0001] This utility model relates to the field of biomass pellet manufacturing technology, and in particular to a biomass pellet forming machine. Background Technology

[0002] Biomass pellets are a new type of environmentally friendly fuel produced by processing straw, rice straw, rice husks, peanut shells, corn cobs, camellia husks, cottonseed husks, and other "three wastes" (residue, waste materials, and solid waste). The biomass pellet forming machine is the main forming machinery for producing biomass pellets. Its working principle is as follows: an electric motor drives a reducer to rotate the pressure rollers via the main shaft. The raw material is forced into the compression chamber between the pressure rollers and the die. Under high pressure, the raw material is squeezed into the die's orifice and then cut off by a rotating scraper to form long, pellet-like pieces.

[0003] When existing biomass pellet forming machines are in operation, the pellets that are extruded through the die holes are cut off by the scraper. The long pellets break and some raw material fragments are scattered. These fragments fall onto the bottom plate along with the long pellets and are then discharged from the discharge chute. The fragments mixed with the long pellets not only affect the quality of the finished product, but also make it difficult to recycle the fragments, resulting in a certain amount of raw material waste.

[0004] Therefore, we propose a biomass pellet forming machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a biomass pellet forming machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A biomass pellet forming machine includes a main body, a flat die, a main shaft, an extrusion roller, a scraper, a worm gear, a worm, a main motor, a discharge plate, and a discharge chute. The surface of the discharge plate has a plurality of fine holes evenly distributed thereon, and a collecting hopper is connected to the bottom of the discharge plate. A lifting cylinder is connected to the bottom of the collecting hopper through a guide pipe, and a return chute is provided between the discharge port of the lifting cylinder and the inlet of the main body. An auger shaft is rotatably installed inside the lifting cylinder, and the bottom end of the auger shaft is connected to the lifting motor through a bevel gear one, a bevel gear two, and a transmission rod.

[0008] In a further embodiment, the hopper is wider at the top and narrower at the bottom, with the bottom end of the hopper inclined toward the lifting cylinder, and the guide pipe is connected to the lowest end of the hopper.

[0009] In a further embodiment, the inner walls of both the hopper and the guide pipe are provided with an anti-sticking layer.

[0010] In a further embodiment, an eccentric wheel is fixed on the transmission rod, and a roller is closely attached to the upper edge of the eccentric wheel. A mounting cover is connected to the roller, and a striking rod is fixed on the mounting cover. When the eccentric wheel rotates, the striking rod is controlled to contact or move away from the guide tube.

[0011] In a further embodiment, the two ends of the transmission rod are supported by bearing seats, one of which is equipped with a bracket, on which a slide cylinder is fixed, and the striking rod slides through the interior of the slide cylinder.

[0012] In a further embodiment, a protective cover is connected to the bottom of the material feeding disc, and the fine hole distribution area of ​​the material feeding disc is located outside the connection area of ​​the protective cover. The bottom end of the main rotating shaft extends into the protective cover, and the meshing section of the worm gear and worm is covered inside the protective cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a perforated feeding disc, which allows for the screening of slag and long granules. The long granules are discharged directly from the discharge chute, while the slag is fed from the collection hopper through the guide pipe into the lifting cylinder. Under the action of the rotating auger shaft, it is lifted back to the feeding port of the main body for reprocessing. This not only improves the quality of the long granules but also allows for the recycling and reuse of slag, thereby reducing the waste of raw materials. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the transmission rod and striking rod of this utility model.

[0019] In the diagram: 1. Main body; 2. Flat mold; 3. Main shaft; 4. Extrusion roller; 5. Scraper; 6. Worm gear; 7. Worm; 8. Main motor; 9. Drop plate; 10. Discharge chute; 11. Collection hopper; 111. Anti-stick layer; 12. Guide pipe; 13. Lifting cylinder; 14. Return chute; 15. Screw shaft; 16. Bevel gear one; 17. Bevel gear two; 18. Transmission rod; 19. Lifting motor; 20. Eccentric wheel; 21. Roller; 22. Mounting cover; 23. Striking rod; 24. Bracket; 25. Slide cylinder; 26. Protective cover. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figure 1-3 A biomass pellet forming machine includes a main body 1 and a flat mold 2. The flat mold 2 is fixed inside the main body 1. A main rotating shaft 3 is rotatably connected through the middle of the flat mold 2. Three extrusion rollers 4 are rotatably connected to one end of the main rotating shaft 3 extending above the flat mold 2 via three support rods. A pair of symmetrical scrapers 5 are fixed around the outer periphery of the outer periphery of the outer periphery of the main rotating shaft 3 extending below the flat mold 2. A worm gear 6 is coaxially fixed to the bottom end of the main rotating shaft 3. A worm 7 meshes around the outer periphery of the worm gear 6. The tail end of the worm 7 extends out of the main body 1 and is connected to a coupling. The device is connected to the output shaft of the main motor 8. The bottom of the main body 1 is provided with a material dropping plate 9. The discharge port of the main body 1 is directly opposite the lower edge of the material dropping plate 9. The material dropping plate 9 is inclined towards the discharge port, and the discharge trough 10 is connected to the lower part of the discharge port. The main motor 8 drives the main rotating shaft 3 to rotate through the worm gear 7 and the worm wheel 6. The main rotating shaft 3 drives the extrusion roller 4 to roll on the flat die 2, pressing the raw material into the die hole of the flat die 2 and then extruding it from below. At the same time, the main rotating shaft 3 drives the scraper 5 to rotate under the flat die 2 to cut the particles extruded from the die hole.

[0024] Please see Figure 1-3The surface of the discharge plate 9 is evenly distributed with several fine holes, and a collecting hopper 11 is connected to the bottom of the discharge plate 9. A lifting cylinder 13 is connected to the bottom of the collecting hopper 11 via a guide pipe 12. The collecting hopper 11 is wider at the top and narrower at the bottom, with its bottom end inclined towards the lifting cylinder 13. The guide pipe 12 is connected to the lowest end of the collecting hopper 11. Both the inner walls of the collecting hopper 11 and the guide pipe 12 are provided with an anti-sticking layer 111 made of PTFE material, which can reduce the adhesion of debris to the inner walls of the hopper and pipe, thus improving efficiency. A return trough 14 is provided between the discharge port of the lifting cylinder 13 and the inlet of the main body 1. An auger shaft 15 is rotatably installed inside the lifting cylinder 13. The bottom end of the auger shaft 15 passes through the lifting cylinder 13 and is coaxially fixed with a bevel gear 16. The outer periphery of the bevel gear 16 is meshed with a bevel gear 17. The shaft end of the bevel gear 17 is connected to a transmission rod 18. Both ends of the transmission rod 18 are supported by bearing seats, and the transmission rod 18 is connected to the output shaft of the lifting motor 19 through a coupling.

[0025] Please see Figure 3 A protective cover 26 is connected to the bottom of the material drop plate 9, and the fine hole distribution area of ​​the material drop plate 9 is located outside the connection area of ​​the protective cover 26 to prevent debris from falling into the protective cover 26. The bottom end of the main rotating shaft 3 extends into the protective cover 26, and the meshing section of the worm gear 6 and the worm 7 is covered inside the protective cover 26 to prevent debris from contaminating the worm gear 6 and the worm 7 and other transmission components, and to ensure stable transmission.

[0026] Please see Figure 4 An eccentric wheel 20 is fixed on the transmission rod 18, and a roller 21 is closely attached to the upper edge of the eccentric wheel 20. A mounting cover 22 is connected to the roller 21, and the roller 21 is rotatably mounted inside the mounting cover 22. A striking rod 23 is fixed on the mounting cover 22. When the eccentric wheel 20 rotates, it squeezes the roller 21 and controls the striking rod 23 to strike the guide pipe 12. A bracket 24 is installed on one of the bearing seats at both ends of the transmission rod 18. A slide cylinder 25 is fixed on the bracket 24, and the striking rod 23 slides through the interior of the slide cylinder 25, so that the striking rod 23 can automatically fall back under the action of gravity. When the eccentric wheel 20 continues to rotate, the striking rod 23 can reciprocate up and down to perform the striking action, which can cause vibration of the guide pipe 12 and the collection hopper 11, reduce the adhesion of debris on the inner wall, and help it to be quickly discharged into the lifting cylinder 13.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biomass pellet forming machine, comprising a main body (1), a flat die (2), a main rotating shaft (3), an extrusion roller (4), a scraper (5), a worm gear (6), a worm (7), a main motor (8), a discharge plate (9), and a discharge chute (10), characterized in that: The surface of the discharge plate (9) is evenly distributed with several fine holes, and a collection hopper (11) is connected to the bottom of the discharge plate (9). The collection hopper (11) is connected to the lifting cylinder (13) through the guide pipe (12). A return groove (14) is set between the discharge port of the lifting cylinder (13) and the inlet of the main body (1). An auger shaft (15) is rotatably installed inside the lifting cylinder (13), and the bottom end of the auger shaft (15) is connected to the lifting motor (19) through bevel gear one (16), bevel gear two (17) and transmission rod (18).

2. The biomass pellet forming machine according to claim 1, characterized in that: The collecting hopper (11) is wider at the top and narrower at the bottom. The bottom end of the collecting hopper (11) is inclined toward the lifting cylinder (13), and the guide pipe (12) is connected to the lowest end of the collecting hopper (11).

3. The biomass pellet forming machine according to claim 1, characterized in that: The inner walls of the collecting hopper (11) and the guide pipe (12) are both provided with an anti-sticking layer (111).

4. A biomass pellet forming machine according to claim 1, characterized in that: An eccentric wheel (20) is fixed on the transmission rod (18), and a roller (21) is closely attached to the upper edge of the eccentric wheel (20). A mounting cover (22) is connected to the roller (21), and a striking rod (23) is fixed on the mounting cover (22). When the eccentric wheel (20) rotates, the striking rod (23) is controlled to contact or move away from the guide tube (12).

5. A biomass pellet forming machine according to claim 4, characterized in that: The two ends of the transmission rod (18) are supported by bearing seats, one of which is equipped with a bracket (24), on which a slide cylinder (25) is fixed, and the striking rod (23) slides through the interior of the slide cylinder (25).

6. A biomass pellet forming machine according to claim 1, characterized in that: The material drop plate (9) is connected to a protective cover (26), and the fine hole distribution area of ​​the material drop plate (9) is located outside the connection area of ​​the protective cover (26). The bottom end of the main rotating shaft (3) extends into the protective cover (26), and the meshing section of the worm gear (6) and the worm (7) is covered inside the protective cover (26).

Images