Efficient biomass particle extrusion forming die

Abstract

The utility model relates to the technical field of biomass particle forming, in particular to an efficient biomass particle extrusion forming die which comprises an extrusion frame, a partition plate transversely fixed to the inner side of the extrusion frame, a plurality of grinding rollers rotationally arranged on the upper side of the partition plate, a first gear fixed to the bottom end of each grinding roller through the partition plate, and a plurality of supporting columns fixed to the outer side of the extrusion frame. A motor is fixed to the upper side of the middle of the supporting frame, a transmission shaft is fixed to the output end of the motor, a second gear meshed with the first gear is fixed to the outer side of the transmission shaft and located below the partition plate, and a plurality of pressing rollers are rotationally arranged on the side face of the transmission shaft and located below the partition plate. The biomass particle extrusion forming die solves the problems that a through hole is only formed in the side face of an existing biomass particle extrusion forming die generally, materials are convenient to extrude, and production efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of biomass pellet forming technology, specifically to a high-efficiency biomass pellet extrusion molding die. Background Technology

[0002] A biomass pellet extrusion molding machine is a device that mechanically extrudes agricultural and forestry waste (such as sawdust, straw, rice husks, etc.) into high-density pellet fuel. Its working principle involves using a ring die or flat die structure, driven by a motor, to extrude the pulverized raw material through pressure rollers. This causes the material to deform, break, and rearrange under pressure. The lignin softens and acts as a binder to bind the cellulose, ultimately extruding the pellets through the die holes. The equipment comes in two types: flat die and ring die. Flat die machines are suitable for small-scale production, with a simple structure and easy operation; ring die machines are suitable for large-scale production, offering high molding efficiency and uniform pellet density. The advantages of this equipment include high molding rate, simple operation (no need for water or binders), low cost, and environmental friendliness and energy saving. It can replace coal in heating, power supply, and other energy fields, and can also be used as fuel for industrial boilers or as briquette feed in industrial and agricultural fields. It is a key piece of equipment for the efficient utilization of biomass energy.

[0003] A biomass pellet extruder typically includes an annular extrusion die with a pair of rollers inside. The material is fed into the die and extruded through the rollers. The extruded material is then scraped into pellets by a scraper. Existing biomass pellet extrusion dies generally only have through holes on the side to facilitate material extrusion, but this results in low production efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing biomass pellet extrusion molds generally only have through holes on the side to facilitate material extrusion, resulting in low production efficiency.

[0005] To solve the above problems, the technical solution adopted by this utility model is a high-efficiency biomass pellet extrusion molding die, including an extrusion frame, a partition plate is horizontally fixed inside the extrusion frame, several grinding rollers are rotatably arranged on the upper side of the partition plate, a gear is fixed at the bottom end of the grinding rollers through the partition plate, several support columns are fixed on the outer side of the extrusion frame, a support frame is fixed at the bottom end of the support columns, a motor is fixed on the upper side of the middle of the support frame, a drive shaft is fixed at the output end of the motor, a gear is fixed on the outer side of the drive shaft below the partition plate and meshes with the gear, and several pressing rollers are rotatably arranged on the side of the drive shaft between the partition plate and the bottom of the extrusion frame.

[0006] As a further embodiment of this utility model: a cover is fixed to the top of the extrusion frame by bolts, and an inlet is opened on the upper side of the cover to facilitate the pouring of raw materials. Several openings are opened on the upper side of the partition to facilitate the entry of raw materials between the partition and the bottom of the extrusion frame. Several limiting cylinders are fixed on the lower side of the cover to facilitate the restriction of the position of the grinding roller.

[0007] As a further embodiment of this utility model, several through holes are provided on the side and bottom surfaces of the extrusion frame to increase the area of ​​the extrusion die holes and improve production efficiency.

[0008] As a further embodiment of this utility model: a scraper is fixed to the side of the drive shaft, and scrapers are provided on the side of the scraper located on the side and bottom of the extrusion frame, which facilitates cutting the extruded biomass strips into granules.

[0009] As a further embodiment of this utility model, several discharge ports are provided on the lower side of the support frame to facilitate the collection of the finished granules.

[0010] As a further embodiment of this invention: the motor is electrically connected to an external power source.

[0011] Compared with the prior art, the advantages of this utility model are as follows: This application redesigns the structure of the biomass pellet extruder, adds a mold hole to the bottom of the extrusion frame, and adds a pressure roller so that pellet extrusion can also be carried out at the bottom of the equipment, which greatly improves production efficiency. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This utility model provides an integral three-dimensional structure for a high-efficiency biomass pellet extrusion molding die. Figure 1 .

[0014] Figure 2 This utility model provides an integral three-dimensional structure for a high-efficiency biomass pellet extrusion molding die. Figure 2 .

[0015] Figure 3 This utility model provides an integral three-dimensional structure for a high-efficiency biomass pellet extrusion molding die. Figure 3 .

[0016] Figure 4 This is a partial structural cross-sectional view of a high-efficiency biomass pellet extrusion molding die according to the present invention.

[0017] In the attached image:

[0018] 1. Extrusion frame; 2. Partition plate; 3. Grinding roller; 4. Gear one; 5. Support column; 6. Support frame; 7. Motor; 8. Drive shaft; 9. Gear two; 10. Pressing roller; 11. Cover; 12. Scraper; 2.1. Opening; 6.1. Discharge port; 11.1. Inlet port; 11.2. Limiting cylinder. Detailed Implementation

[0019] 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.

[0020] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0021] Combined with appendix Figure 1-4 It can be seen that the extrusion frame 1 has several through holes on its sides and bottom to increase the area of ​​the extrusion die holes and improve production efficiency. A partition 2 is horizontally fixed inside the extrusion frame 1, and several grinding rollers 3 are rotatably mounted on the upper side of the partition 2 for extruding raw materials. Gears 4 are fixed to the bottom ends of the grinding rollers 3 through the partition 2. Several support columns 5 are fixed to the outer side of the extrusion frame 1, and support frames 6 are fixed to the bottom ends of the support columns 5. Several discharge ports 6.1 are opened on the lower side of the support frame 6 to facilitate the collection of the finished particles. A motor 7 is fixed on the upper side of the part, and a transmission shaft 8 is fixed at the output end of the motor 7. A gear 9 that meshes with gear 4 is fixed on the outer side of the transmission shaft 8 below the partition plate 2, which can drive the grinding roller 3 to rotate. Several pressing rollers 10 are rotatably arranged on the side of the transmission shaft 8 between the partition plate 2 and the bottom of the extrusion frame 1, which can press the raw material so that it can be extruded from the bottom of the extrusion frame 1. A scraper 12 is fixed on the side of the transmission shaft 8. Scrapers are provided on the side of the scraper 12 on the side and bottom of the extrusion frame 1, which can facilitate cutting the extruded biomass strips into granules.

[0022] The top of the extrusion frame 1 is fixed with a cover 11 by bolts. The upper side of the cover 11 has an inlet 11.1 for easy pouring of raw materials. The upper side of the partition 2 has several openings 2.1 to facilitate the entry of raw materials between the partition 2 and the bottom of the extrusion frame 1. The lower side of the cover 11 is fixed with several limiting cylinders 11.2 to facilitate limiting the position of the grinding roller 3.

[0023] The working principle of this application is as follows: When manufacturing biomass pellets, the processed raw materials are first fed into the extrusion frame 1 through the feed port 11.1. At the same time, the raw materials enter the bottom of the extrusion frame 1 through the opening 2.1. Then, the motor 7 is started, and the motor 7 drives the transmission shaft 8 to rotate. The transmission shaft 8 drives the gear 2 9 to rotate, so as to drive the four grinding rollers 3 to rotate and extrude, so as to extrude the raw materials from the through holes on the side of the extrusion frame 1. The rotation of the transmission shaft 8 also drives the paper pressing roller 10 to rotate and roll, so as to extrude the raw materials from the bottom of the extrusion frame 1. The rotation of the transmission shaft 8 also drives the scraper 12 to rotate, so as to cut the extruded strip-shaped biomass into pellets, which are finally output from the discharge port 6.1 and collected through the collection box.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-efficiency biomass particle extrusion molding die, characterized in that: The extrusion frame (1) includes a partition (2) fixed horizontally inside the extrusion frame (1), several grinding rollers (3) are rotatably arranged on the upper side of the partition (2), a gear (4) is fixed at the bottom end of the grinding roller (3) through the partition (2), several support columns (5) are fixed on the outer side of the extrusion frame (1), a support frame (6) is fixed at the bottom end of the support column (5), a motor (7) is fixed on the upper side of the middle part of the support frame (6), a transmission shaft (8) is fixed at the output end of the motor (7), a gear (9) that meshes with the gear (4) is fixed on the outer side of the transmission shaft (8) below the partition (2), and several pressing rollers (10) are rotatably arranged on the side of the transmission shaft (8) between the partition (2) and the bottom of the extrusion frame (1).

2. The high-efficiency biomass particle extrusion molding die according to claim 1, characterized in that: The top of the extrusion frame (1) is fixed with a cover (11) by bolts. The cover (11) has an inlet (11.1) on its upper side. The partition (2) has several openings (2.1) on its upper side. The cover (11) has several limiting cylinders (11.2) fixed on its lower side.

3. The high-efficiency biomass particle extrusion molding die according to claim 1, characterized in that: The extrusion frame (1) has several through holes on its side and bottom surfaces.

4. The high-efficiency biomass particle extrusion molding die according to claim 1, characterized in that: The drive shaft (8) is fixed with a scraper (12) on its side. The scraper (12) is provided with scrapers on the side and bottom of the extrusion frame (1).

5. The high-efficiency biomass particle extrusion molding die according to claim 1, characterized in that: The support frame (6) has several discharge ports (6.1) on its lower side.

6. The high-efficiency biomass particle extrusion molding die according to claim 1, characterized in that: The motor (7) is electrically connected to an external power source.

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