High-efficiency biomass particle low-temperature carbonization device

By designing a spiral blade conveyor cylinder and a lifting plate heating wire, the problem of uneven heating of biomass pellets was solved, achieving efficient and uniform heating and improving the quality and efficiency of charcoal production.

CN224494086UActive Publication Date: 2026-07-14JIANGSU BENENV ENVIRONMENTAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU BENENV ENVIRONMENTAL TECH CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Uneven heating during the drying of biomass pellets on a flat surface leads to a decrease in charcoal production quality and efficiency.

Method used

It adopts a spiral blade conveyor cylinder and a lifting plate heating wire structure. The conveyor cylinder is driven to rotate and the lifting plate is raised and lowered by a motor to realize the tumbling and uniform heating of biomass pellets.

Benefits of technology

It improves the heat and mass transfer rates of biomass pellets, ensures heating uniformity, and enhances charcoal production quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224494086U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of low-temperature carbonization device of high-efficiency biomass particle, it relates to the technical field of biomass particle processing, the low-temperature carbonization device, including carbonization box;Further include: through-hole, it is set in the two side surfaces of carbonization box, and through-hole is communicated in the inside of carbonization box, the inside of carbonization box is equipped with conveying cylinder, the surface distribution mesh of conveying cylinder is communicated the inside of conveying cylinder, the both ends of conveying cylinder are open type setting, and the both ends of conveying cylinder are movably clamped and connected between through-hole, conveying cylinder is driven to slowly rotate under the engagement transmission of gear and conveying cylinder, so that biomass particle can slowly move in the inside of conveying cylinder, can tumble simultaneously, tumbling makes that biomass particle and conveying cylinder inner wall, material and material between there are slow relative displacement, and fully mix, so that biomass particle can alternately receive heat conduction, heating of heat convection, heat radiation.
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Description

Technical Field

[0001] This utility model relates to the field of biomass pellet processing technology, specifically to a high-efficiency biomass pellet low-temperature charcoal production device. Background Technology

[0002] Biomass refers to all renewable organic matter derived from plants, animals, and microorganisms. It is organic matter formed through photosynthesis, including agricultural waste, forestry waste, energy crops, and the organic components of municipal waste. Carbonization is the process of heating and decomposing biomass materials under anaerobic or oxygen-deficient conditions to produce biochar. During carbonization, biomass undergoes stages such as drying, pyrolysis, and carbonization, ultimately producing a solid product rich in carbon. Biochar fuel is internationally certified as a zero-pollution fuel, reducing dependence on fossil fuels and lowering environmental pollution.

[0003] As indicated by announcement number CN212362684U, a biomass charcoal raw material drying device is described. This device includes a base, a mixing box, and a drying box. Both the mixing box and the drying box are mounted on the base. The mixing box is connected to the drying box through a material conveying channel. The drying box includes a drying box body, a drying inner cylinder, and supporting legs. The drying box body is mounted on the base through the supporting legs. Heating elements in the fixing block heat the drying inner cylinder. The fixing block causes the biomass fuel to bounce inside the drying inner cylinder, making the biomass raw material completely dispersed and drying more evenly.

[0004] The above-mentioned device dries and chars materials by electric heating. However, since the biomass material is spread flat on the surface and cannot be turned, the biomass pellets are prone to uneven drying and heating, which reduces the quality and efficiency of char. Therefore, we propose a high-efficiency low-temperature biomass pellet char production device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency low-temperature biomass pellet charcoal making device to solve the problem mentioned in the background art that, because the biomass material is spread flat on the surface and cannot be turned over, the biomass pellets are prone to uneven drying and heating, which reduces the quality and efficiency of charcoal making.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency biomass pellet low-temperature charcoal production device, including a carbonization box;

[0007] Also includes:

[0008] Through holes are provided on both sides of the carbonization box and connect to the interior of the carbonization box. A conveying cylinder is installed inside the carbonization box. The surface of the conveying cylinder is distributed with mesh holes and connects to the interior of the conveying cylinder. Both ends of the conveying cylinder are open and are movably engaged with the through holes. A transmission rod is installed inside the conveying cylinder. Spiral blades are installed on the outside of the transmission rod and the edges of the spiral blades are fixed to the inner wall of the conveying cylinder by welding. A lifting plate is installed inside the carbonization box and is located below the conveying cylinder. Heating wires are distributed on the surface of the lifting plate.

[0009] Preferably, a protective cover is installed on one side of the upper end of the carbonization box, a gear is installed inside the protective cover, and the bottom side of the gear extends into the interior of the carbonization box through a through groove on the surface of the carbonization box. The conveying cylinder has teeth distributed around the outside of the gear, and the conveying cylinder and the gear are connected by meshing transmission through the teeth.

[0010] Preferably, a first motor is installed on the outer side of the protective cover, and the first motor is connected to a gear.

[0011] Preferably, the bottom sides of the carbonization box are symmetrically provided with sliding plates, the upper sides of the sliding plates are symmetrically provided with second connecting seats, the bottom sides of the lifting plate are symmetrically provided with first connecting seats, the first connecting seats and the second connecting seats are connected by a connecting rod, and the two ends of the connecting rod are respectively connected to the first connecting seat and the second connecting seat by hinge.

[0012] Preferably, a bidirectional screw is installed at the bottom of the carbonization box, and one end of the bidirectional screw is engaged with the inside of the carbonization box through a bearing. A second motor is installed on the outside of the carbonization box, and the second motor is connected to the other end of the bidirectional screw. The surface of the slide plate is provided with a threaded hole, and the slide plate is threadedly connected to the bidirectional screw through the threaded hole.

[0013] Preferably, a baffle is installed on the outside of the carbonization box, and the baffle is located outside the through hole. A connector is installed above the through hole, and the connector is hinged to the baffle.

[0014] Preferably, the two ends of the conveying cylinder are movably connected to the through hole via rotating bearings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) By installing spiral blades inside the conveying cylinder, and with the inlet and outlet of the conveying cylinder located at the two ends of the carbonization box respectively, biomass pellets are placed in the inlet and driven by the motor above to rotate. Under the meshing transmission of the gear and the conveying cylinder, the conveying cylinder is driven to rotate slowly, so that the biomass pellets can move slowly inside the conveying cylinder and tumble. The tumbling causes slow relative displacement between the biomass pellets and the inner wall of the conveying cylinder, and between the materials, and fully mixes them, so that the biomass pellets can be alternately heated by heat conduction, heat convection and heat radiation, thereby improving the heat transfer and mass transfer rate.

[0017] (2) By setting a lifting plate below the conveying cylinder, setting a heating wire on the surface of the lifting plate, and installing a bidirectional screw-driven adjustment structure at the bottom of the lifting plate, the lifting plate can be adjusted to raise and lower, thereby adjusting the distance between the heating wire and the conveying cylinder according to the needs, and thus further controlling the temperature. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the carbonization box of this utility model;

[0020] Figure 3 This is a cross-sectional view of the conveyor cylinder of this utility model;

[0021] Figure 4 This is a side sectional view of the overall structure of this utility model;

[0022] In the diagram: 1. Carbonization box; 2. Protective cover; 3. Gear; 4. First motor; 5. Baffle; 6. Second motor; 7. Rotary bearing; 8. Conveying cylinder; 9. Spiral blade; 10. Transmission rod; 11. Threaded hole; 12. Heating wire; 13. Lifting plate; 14. Connecting rod; 15. Slide plate; 16. Bidirectional screw; 17. First connecting seat; 18. Second connecting seat; 19. Connecting piece; 20. Through hole; 21. Tooth. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] This invention provides a high-efficiency low-temperature biomass pellet charcoal production device, which includes a carbonization box 1. The main problem this invention solves is that when biomass materials are laid flat on a surface and cannot be turned, the biomass pellets tend to dry unevenly, leading to reduced charcoal quality and efficiency.

[0025] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.

[0026] Through holes 20 are provided on both sides of the carbonization box 1 and are connected to the interior of the carbonization box 1. A conveying cylinder 8 is installed inside the carbonization box 1. The surface of the conveying cylinder 8 is distributed with mesh holes and is connected to the interior of the conveying cylinder 8. The mesh holes on the surface of the conveying cylinder 8 can facilitate the penetration of heat and allow heat to contact the biomass pellets. The two ends of the conveying cylinder 8 are open and are movably engaged with the through holes 20. The two ends of the conveying cylinder 8 are movably connected to the through holes 20 through rotating bearings 7. The conveying cylinder 8 can be rotated through the bearings 7. A conveying rod 10 is installed inside the conveying cylinder 8. A spiral blade 9 is installed on the outside of the conveying rod 10 and the edge of the spiral blade 9 is fixed to the inner wall of the conveying cylinder 8 by welding. A lifting plate 13 is installed inside the carbonization box 1 and is located below the conveying cylinder 8. Heating wires 12 are distributed on the surface of the lifting plate 13.

[0027] Please see Figure 2 To further explain, a protective cover 2 is installed on the upper side of the carbonization box 1. A gear 3 is installed inside the protective cover 2, and the bottom side of the gear 3 extends into the interior of the carbonization box 1 through a groove on the surface of the carbonization box 1. The conveying cylinder 8 has teeth 21 distributed around the outside of the gear 3, and the conveying cylinder 8 and the gear 3 are connected by meshing transmission through the teeth 21. A first motor 4 is installed on the outer side of the protective cover 2, and the first motor 4 is connected to the gear 3. The gear 3 is used to control the rotation of the conveying cylinder 8.

[0028] Please see Figure 2 To further explain, the bottom sides of the carbonization box 1 are symmetrically provided with sliding plates 15, and the upper sides of the sliding plates 15 are symmetrically provided with second connecting seats 18. The bottom sides of the lifting plate 13 are symmetrically provided with first connecting seats 17. The first connecting seats 17 and the second connecting seats 18 are connected by connecting rods 14, and the two ends of the connecting rods 14 are respectively connected to the first connecting seats 17 and the second connecting seats 18 by hinges. The bottom of the carbonization box 1 is equipped with a bidirectional screw 16, and one end of the bidirectional screw 16 is engaged with the interior of the carbonization box 1 by a bearing. The outside of the carbonization box 1 is equipped with a second motor 6, and the second motor 6 is connected to the other end of the bidirectional screw 16. The surface of the sliding plate 15 is provided with threaded holes 11, and the sliding plate 15 is threadedly connected to the bidirectional screw 16 through the threaded holes 11.

[0029] Please see Figure 1A baffle 5 is installed on the outside of the carbonization box 1, and the baffle 5 is located outside the through hole 20. A connector 19 is installed above the through hole 20, and the connector 19 is hinged to the baffle 5. The baffle 5 can close the through hole 20 to prevent heat loss.

[0030] 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.

Claims

1. A high-efficiency biomass pellet low-temperature char production device, comprising a carbonization box (1); Its features are: Also includes: Through holes (20) are provided on both sides of the carbonization box (1) and the through holes (20) are connected to the interior of the carbonization box (1). A conveying cylinder (8) is installed inside the carbonization box (1). The surface of the conveying cylinder (8) is distributed with mesh holes and connected to the interior of the conveying cylinder (8). Both ends of the conveying cylinder (8) are open and are movably engaged with the through holes (20). A transmission rod (10) is installed inside the conveying cylinder (8). A spiral blade (9) is installed on the outside of the transmission rod (10), and the edge of the spiral blade (9) is fixed to the inner wall of the conveying cylinder (8) by welding. A lifting plate (13) is installed inside the carbonization box (1) and is located below the conveying cylinder (8). Heating wires (12) are distributed on the surface of the lifting plate (13).

2. The high-efficiency biomass pellet low-temperature charcoal production device according to claim 1, characterized in that: A protective cover (2) is installed on one side of the upper end of the carbonization box (1). A gear (3) is installed inside the protective cover (2). The bottom side of the gear (3) extends into the interior of the carbonization box (1) through a groove on the surface of the carbonization box (1). The conveying cylinder (8) has teeth (21) distributed around the outside of the gear (3). The conveying cylinder (8) and the gear (3) are connected by meshing transmission through the teeth (21).

3. The high-efficiency biomass pellet low-temperature charcoal production device according to claim 2, characterized in that: The protective cover (2) is equipped with a first motor (4) on its outer side, and the first motor (4) is connected to the gear (3).

4. The high-efficiency biomass pellet low-temperature charcoal production device according to claim 1, characterized in that: The carbonization box (1) has symmetrically arranged sliding plates (15) on both sides of its bottom. The upper ends of the sliding plates (15) are symmetrically arranged with second connecting seats (18). The bottom ends of the lifting plate (13) are symmetrically arranged with first connecting seats (17). The first connecting seat (17) and the second connecting seat (18) are connected by a connecting rod (14), and the two ends of the connecting rod (14) are respectively connected to the first connecting seat (17) and the second connecting seat (18) by hinges.

5. The high-efficiency biomass pellet low-temperature charcoal production device according to claim 4, characterized in that: A bidirectional screw (16) is installed at the bottom of the interior of the carbonization box (1), and one end of the bidirectional screw (16) is engaged with the interior of the carbonization box (1) through a bearing. A second motor (6) is installed on the outside of the carbonization box (1), and the second motor (6) is connected to the other end of the bidirectional screw (16). A threaded hole (11) is provided on the surface of the slide plate (15), and the slide plate (15) is threadedly connected to the bidirectional screw (16) through the threaded hole (11).

6. The high-efficiency biomass pellet low-temperature charcoal production device according to claim 1, characterized in that: A baffle (5) is installed on the outside of the carbonization box (1), and the baffle (5) is located outside the through hole (20). A connector (19) is installed above the through hole (20), and the connector (19) is hinged to the baffle (5).

7. The high-efficiency biomass pellet low-temperature charcoal production device according to claim 1, characterized in that: The two ends of the conveying cylinder (8) are movably connected to the through hole (20) through a rotating bearing (7).