Anti-blocking discharging mechanism for biomass granulator

By designing a dredging structure in the biomass pellet mill, and utilizing the cooperation between the motor-driven half-gear and the rack plate, intermittent dredging of the discharge pipe is achieved, solving the problem of discharge pipe blockage and improving production efficiency and discharge stability.

CN224113906UActive Publication Date: 2026-04-14WUXI BEISIER PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI BEISIER PRECISION MASCH CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The discharge pipe outlet of existing biomass pellet mills is prone to blockage due to excessive instantaneous material discharge, resulting in poor material discharge and affecting production efficiency and stability.

Method used

A clog-prevention discharge mechanism was designed, including a clearing structure. A motor-driven half-gear engages with a rack plate to drive a clearing rod to intermittently enter and exit the discharge pipe, thus preventing blockage.

Benefits of technology

It effectively prevents blockage of the discharge pipe and improves the production efficiency and output stability of biomass pellets.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-blocking discharging mechanism for a biomass granulator. The anti-blocking discharging mechanism comprises a base, a machine shell, a granulating shell, a discharging pipe and a dredging structure, one end of the top of the base is fixedly connected with the machine shell, the granulating shell is arranged above the machine shell, the discharging pipe is fixedly communicated with the bottom of one end of the granulating shell, and the dredging structure is arranged on the discharging pipe. Compared with the prior art, the device has the advantages that when the half gear rotates, the two dredging rods can be driven to intermittently enter and exit from the discharging pipe, continuous dredging can be conveniently conducted on an outlet of the discharging pipe, particles in the discharging pipe are poked, flowing of the particles in the discharging pipe is accelerated, and the discharging effect is improved. And blockage caused by excessive instantaneous discharging amount is avoided, so that blockage during discharging of the biomass particles can be effectively avoided, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of biomass pellet mill technology, specifically to an anti-clogging discharge mechanism for a biomass pellet mill. Background Technology

[0002] Biomass fuel is a new type of clean fuel that uses agricultural and forestry waste as raw materials. Through processes such as crushing, mixing, extrusion, and drying, it is produced into various shapes (such as blocks and pellets) that can be directly burned. Given the increasingly deteriorating environment, biomass fuel is widely recommended and used in major cities. After processing, it is necessary to consider the discharge of the material to ensure rapid disposal.

[0003] Patent document CN220496287U discloses a biomass pellet mill unit, including a casing. A fixed pipe is fixedly connected to the upper surface of the casing, and a pelleting shell is fixedly connected to the top of the fixed pipe. A feeding cylinder is fixedly connected to the upper surface of the pelleting shell, and a first motor is fixedly installed at the top of the feeding cylinder. A spiral conveyor shaft is located inside the feeding cylinder. By setting the feeding cylinder at the top of the pelleting shell and connecting it to the pelleting shell, and by setting the spiral conveyor shaft inside the feeding cylinder, the first motor drives the spiral conveyor shaft to rotate, conveying the raw material and preventing blockage during feeding. The raw material enters the pelleting shell and is compressed by the cooperation of the pelleting disc and the pelleting roller to form pellets. A discharge pipe is set at the bottom of the pelleting shell to facilitate pellet discharge. The spiral conveyor shaft, in conjunction with the feeding hopper, is used for feeding, preventing raw material accumulation and blockage of the pellet mill. However, the existing technology still has shortcomings:

[0004] In existing technologies, the outlet of the discharge pipe is relatively small, which can easily cause blockage in the internal channel due to excessive material flow in a short period of time. Excessive material can clog the outlet of the discharge pipe, preventing further extrusion molding and discharge. This requires manual cleaning of the material at the outlet of the discharge pipe, which is not only inconvenient to clear, but also time-consuming and labor-intensive, making it difficult to discharge the material quickly. This reduces the stability of the biomass fuel pellets produced by the pellet mill and lowers the production efficiency of the biomass pellet mill.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide an anti-clogging discharge mechanism for biomass pellet mills.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an anti-clogging discharge mechanism for a biomass pellet mill, comprising:

[0008] A base, with a housing fixedly connected to one top end of the base;

[0009] A granulation shell, wherein the granulation shell is disposed above the machine housing;

[0010] A discharge pipe, which is fixedly connected to the bottom of one end of the granulation shell;

[0011] A dredging structure is provided on the discharge pipe. The dredging structure includes an L-shaped bracket fixedly connected to the lower end of the outer wall of the granulation shell. Fixed plates are fixedly connected to both ends of the bottom of the L-shaped bracket. Through holes are opened at both ends of the fixed plates. A toothed plate is slidably connected to one of the through holes. A limiting plate is fixedly connected to the end of the toothed plate near the granulation shell. A spring is fixedly connected between the limiting plate and the fixed plate, and the spring is sleeved outside the toothed plate. A second toothed plate is slidably connected to the other end of the toothed plate within the through hole. A limiting plate 2 is fixedly connected to one end of the rack plate near the granulation shell, and a limiting plate 3 is fixedly connected to the other end of the rack plate away from the granulation shell. A spring 2 is fixedly connected between the limiting plate 3 and the fixing plate, and the spring 2 is sleeved on the outside of the rack plate 2. A drain rod is fixedly connected to the ends of the rack plate 1 and rack plate 2 away from the granulation shell, and the drain rod is inserted into the discharge pipe. A motor 2 is fixedly installed on the top of the L-shaped bracket, and a half gear is fixedly connected to the output end of the motor 2. The rack plate 1, rack plate 2 and half gear are used in conjunction.

[0012] Furthermore, a fixed tube is fixedly connected to the top of the housing, and a rotating shaft is rotatably inserted between the bottom of the inner wall of the housing and the top of the fixed tube. A bevel gear is fixedly connected to the lower end of the rotating shaft, and a motor is installed at the other end of the top of the base. A rotating shaft is fixedly connected to the output end of the motor. The rotating shaft extends into the interior of the housing and a bevel gear is fixedly connected to its end. The bevel gear meshes with the bevel gear. A granulation disc is fixedly connected to the top of the rotating shaft.

[0013] Furthermore, the front surface of the granulation shell is provided with an observation window, and the top end of the rotating shaft extends into the interior of the granulation shell.

[0014] Furthermore, a feed cylinder is fixedly connected to the top of the pelleting shell, a motor is installed on the top of the feed cylinder, a rotating shaft is fixedly connected to the output end of the motor, the rotating shaft extends into the inside of the feed cylinder, a spiral feeding blade is fixedly connected to the outer wall of the rotating shaft, and a pelletizing roller is fixedly connected to the bottom outer wall of the rotating shaft. There are multiple pelletizing rollers and they are distributed circumferentially.

[0015] Furthermore, a feed hopper is fixedly connected to the upper part of one end of the feed cylinder.

[0016] Furthermore, a control panel is mounted on the front surface of the housing.

[0017] The advantages of this utility model compared with the prior art are as follows: Through the setting of the unblocking structure, the motor drives the half gear to rotate. When the half gear meshes with the rack plate, it can drive one end of the unblocking rod to move outward out of the discharge pipe. After that, when the half gear disengages from the rack plate, under the elastic action of the spring, it drives one end of the unblocking rod to move into the discharge pipe. At this time, the half gear meshes with the rack plate, which can drive the other end of the unblocking rod to move into the discharge pipe. Thus, when the half gear rotates, it can drive the two unblocking rods to intermittently enter and exit the discharge pipe, which facilitates continuous unblocking at the outlet of the discharge pipe, agitates the particles in the discharge pipe, and accelerates the flow of particles inside the discharge pipe, avoiding blockage caused by excessive instantaneous discharge. This can effectively avoid blockage during biomass pellet discharge, thereby improving production efficiency, meeting usage requirements, and having good practicality. Attached Figure Description

[0018] Figure 1 This utility model relates to a three-dimensional anti-clogging discharge mechanism for a biomass pellet mill. Figure 1 .

[0019] Figure 2 This utility model relates to a three-dimensional anti-clogging discharge mechanism for a biomass pellet mill. Figure 2 .

[0020] Figure 3 This is a front sectional view of an anti-clogging discharge mechanism for a biomass pellet mill according to this utility model.

[0021] Figure 4 This utility model relates to a three-dimensional anti-clogging discharge mechanism for a biomass pellet mill. Figure 3 .

[0022] Figure 5 This utility model relates to an anti-clogging discharge mechanism for a biomass pellet mill. Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 This utility model relates to an anti-clogging discharge mechanism for a biomass pellet mill. Figure 4 Enlarged structural diagram at point B in the middle.

[0024] The diagram shows: 1. Base; 2. Machine casing; 21. Fixing pipe; 22. Rotating shaft one; 23. Bevel gear one; 24. Motor one; 25. Rotating shaft two; 26. Bevel gear two; 27. Granulation disc; 3. Granulation shell; 31. Observation window; 4. Discharge pipe; 5. Unblocking structure; 51. L-shaped bracket; 52. Fixing plate; 53. Rack plate one; 531. Limiting plate one; 532. Spring one; 54. Rack plate two; 541. Limiting plate two; 542. Limiting plate three; 543. Limiting plate three; 55. Unblocking rod; 56. Motor two; 57. Half gear; 6. Feed cylinder; 61. Motor three; 62. Rotating shaft three; 63. Spiral feed blade; 64. Granulation roller; 7. Feed hopper; 8. Control panel. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] like Figures 1 to 6 As shown, this embodiment proposes an anti-clogging discharge mechanism for a biomass pellet mill, including a base 1. A housing 2 is fixedly connected to one top end of the base 1. A fixed pipe 21 is fixedly connected to the top of the housing 2. A rotating shaft 22 is rotatably inserted between the bottom of the inner wall of the housing 2 and the top of the fixed pipe 21. A bevel gear 23 is fixedly connected to the lower end of the rotating shaft 22. A motor 24 is installed at the other top end of the base 1. A motor frame 24 is provided on the outside of the motor 24 and is fixedly connected to the surface of the base 1. A rotating shaft 25 is fixedly connected to the output end of the motor 24. 25 is rotatably connected to the inner wall of the housing 2. The second rotating shaft 25 extends into the housing 2 and is fixedly connected to the end of the second bevel gear 26. The second bevel gear 26 is meshed with the first bevel gear 23. The top of the first rotating shaft 22 is fixedly connected to the granulation disc 27. A brush plate is fixedly connected to the outer wall of the granulation disc 27. The first starting motor 24 drives the second rotating shaft 25 to rotate, the second rotating shaft 25 drives the second bevel gear 26 to rotate, the second bevel gear 26 drives the meshed bevel gear 23 to rotate, the first bevel gear 23 drives the first rotating shaft 22 to rotate, and the first rotating shaft 22 drives the granulation disc 27 to rotate.

[0028] A pelletizing shell 3 is provided on the top of the housing 2. An observation window 31 is provided on the front surface of the pelletizing shell 3. The top of the rotating shaft 22 extends into the interior of the pelletizing shell 3. The pelletizing shell 3 is fixedly installed on the top of the fixed tube 21. The observation window 31 facilitates the observation of the feeding and pelleting process.

[0029] The bottom of one end of the pelleting shell 3 is fixedly connected to the discharge pipe 4. When the pelleting disc 27 rotates, it drives the brush plate to rotate, thereby pushing the extruded pellets to the discharge pipe 4 for discharge.

[0030] The discharge pipe 4 is equipped with a clearing structure 5, which includes an L-shaped bracket 51 fixedly connected to the lower end of the outer wall of the pelleting shell 3. Fixed plates 52 are fixedly connected to both ends of the bottom of the L-shaped bracket 51. Through holes are opened at both ends of the fixed plates 52. A T-shaped groove is opened at one end of the inner wall of each through hole, and a toothed plate 53 is slidably connected inside the other through hole. A limiting plate 531 is fixedly connected to the end of the toothed plate 53 closest to the pelleting shell 3. A spring 532 is fixedly connected between the limiting plate 531 and the fixed plate 52, and the spring 532 is sleeved on the toothed plate 53. Outside the rack plate 53, a T-shaped slider is fixedly connected to one end of the rack plate 53. The T-shaped slider is slidably connected in a T-shaped groove to facilitate the limiting and guiding of the movement of the rack plate 53. A rack plate 54 is slidably connected in a through hole at the other end. A limit plate 541 is fixedly connected to the end of the rack plate 54 near the granulation shell 3, and a limit plate 542 is fixedly connected to the end of the rack plate 54 away from the granulation shell 3. A spring 543 is fixedly connected between the limit plate 542 and the fixed plate 52, and the spring 543 is sleeved on the rack plate. Externally, rack plate 54 has a T-shaped slider 2 fixedly connected to one end. The T-shaped slider 2 is slidably connected in a T-shaped groove to facilitate the limiting and guiding of the movement of rack plate 54. Both rack plate 53 and rack plate 54 have a dredging rod 55 fixedly connected to their ends away from the granulation shell 3. The dredging rods 55 are L-shaped and inserted into the discharge pipe 4. A motor 56 is fixedly mounted on the top of the L-shaped bracket 51. A motor frame 2 is provided outside the motor 56 and fixedly connected to the top of the L-shaped bracket 51. On the surface of the part, a half gear 57 is fixedly connected to the output end of motor 2 56. Rack plate 1 53 and rack plate 2 54 work together with half gear 57. Through the coordinated use of motor 2 56, half gear 57, rack plate 1 53, limit plate 1 531, spring 1 532, unblocking rod 55, rack plate 2 54, limit plate 2 541, and spring 2 543, when half gear 57 rotates, it can drive the two unblocking rods 55 to intermittently enter and exit the discharge pipe 4, which facilitates continuous unblocking of the outlet of discharge pipe 4 and prevents blockage of discharge pipe 4 during material discharge.

[0031] The top of the pelleting shell 3 is fixedly connected to the feed cylinder 6. A motor 61 is installed on the top of the feed cylinder 6. The motor 61 has a motor frame 3 on its outside, which is fixedly connected to the top surface of the feed cylinder 6. The output end of the motor 61 is fixedly connected to the rotating shaft 62, which extends into the feed cylinder 6. A spiral feeding blade 63 is fixedly connected to the outer wall of the rotating shaft 62. A pelletizing roller 64 is fixedly connected to the bottom outer wall of the rotating shaft 62. There are multiple pelletizing rollers 64, which are circumferentially distributed. By starting the motor 61, the rotating shaft 62 in the feed cylinder 6 is driven to rotate. The rotating shaft 62 drives the spiral feeding blade 63 to rotate and transport the raw material into the pelleting shell 3. The pelletizing roller 64 in the pelleting shell 3 rotates in the opposite direction to the pelleting disc 27, which extrudes the raw material into pellets. The extruded pellets are discharged through the discharge pipe 4.

[0032] A feed hopper 7 is fixedly connected to the upper part of one end of the feed cylinder 6. The raw material is fed into the interior of the feed cylinder 6 through the feed hopper 7.

[0033] A control panel 8 is installed on the front surface of the casing 2, and the biomass pellet machine can be easily controlled by the control switch on the control panel 8.

[0034] In practical implementation, the raw material is first fed into the feed cylinder 6 through the feed hopper 7. Then, motor 24 is started, driving shaft 25 to rotate. Shaft 25 drives bevel gear 26 to rotate, which in turn drives bevel gear 23 to rotate. Bevel gear 23 drives shaft 22 to rotate, which in turn drives granulation disc 27 to rotate. Simultaneously, motor 61 is started, driving shaft 62 in the feed cylinder 6 to rotate. Shaft 62 drives the spiral feeding blades 63 to rotate, conveying the raw material. The material enters the interior of the pelleting shell 3, causing the pelleting roller 64 and the pelleting disc 27 to rotate in opposite directions, extruding the raw material into pellets. The extruded pellets are discharged through the discharge pipe 4. Then, the motor 2 56 is started to drive the half gear 57 to rotate. When the half gear 57 rotates to mesh with the rack plate 1 53, the rotation of the half gear 57 can drive the rack plate 1 53 to move downward, thereby driving the limit plate 1 531 to compress the spring 1 532, thereby causing one end of the unblocking rod 55 to move outward out of the discharge pipe 4. After that, the half gear 57 rotates to mesh with the rack plate 1 53. When disengaged, the elastic action of spring 532 causes rack plate 53 to move upward, thereby moving one end of the unblocking rod 55 into the discharge pipe 4. At this time, half gear 57 rotates to engage with rack plate 54. The rotation of half gear 57 can drive rack plate 54 to move upward, thereby causing limit plate 541 to squeeze spring 543, thus causing the other end of the unblocking rod 55 to move into the discharge pipe 4. Afterward, when half gear 57 rotates to disengage from rack plate 54, the elastic action of spring 543... This causes the rack plate 54 to move downwards, which in turn causes the other end of the unblocking rod 55 to move outwards from the discharge pipe 4. When the half gear 57 rotates, it can drive the two unblocking rods 55 to intermittently enter and exit the discharge pipe 4, which facilitates continuous unblocking of the outlet of the discharge pipe 4 and agitates the particles inside the discharge pipe 4, making the particles inside the discharge pipe 4 flow faster and avoiding blockage caused by excessive instantaneous discharge. This can effectively avoid blockage during biomass pellet discharge, thereby improving production efficiency, meeting usage requirements, and demonstrating good practicality.

[0035] All electrical components mentioned in this document are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer. The specific implementation of this disclosure omits detailed descriptions of known functions and components. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available devices. In addition, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-proof discharge mechanism for a biomass pellet mill, characterized in that: include: Base (1), with a shell (2) fixedly connected to one end of the top of the base (1); Granulation shell (3), which is located above the housing (2); Discharge pipe (4), the discharge pipe (4) is fixedly connected to the bottom of one end of the granulation shell (3); The unblocking structure (5) is provided on the discharge pipe (4). The unblocking structure (5) includes an L-shaped bracket (51) fixedly connected to the lower end of the outer wall of the granulation shell (3). The bottom two ends of the L-shaped bracket (51) are fixedly connected to a fixing plate (52). The fixing plate (52) has through holes at both ends. A toothed plate (53) is slidably connected in one end of the through hole. A limiting plate (531) is fixedly connected to one end of the toothed plate (53) near the granulation shell (3). A spring (532) is fixedly connected between the limiting plate (531) and the fixing plate (52). The spring (532) is sleeved on the outside of the toothed plate (53). A toothed plate (54) is slidably connected in the through hole at the other end. The toothed plate (54) is close to the granulation shell (3). 3) One end is fixedly connected to a limiting plate two (541), and the end of the rack plate two (54) away from the granulation shell (3) is fixedly connected to a limiting plate three (542). A spring two (543) is fixedly connected between the limiting plate three (542) and the fixing plate (52). The spring two (543) is sleeved on the outside of the rack plate two (54). A dredging rod (55) is fixedly connected to the end of the rack plate one (53) and the rack plate two (54) away from the granulation shell (3). The dredging rod (55) is inserted into the discharge pipe (4). A motor two (56) is fixedly installed on the top of the L-shaped bracket (51). A half gear (57) is fixedly connected to the output end of the motor two (56). The rack plate one (53), rack plate two (54) and half gear (57) are used in conjunction.

2. The anti-clogging discharge mechanism for a biomass pellet mill according to claim 1, characterized in that: The top of the housing (2) is fixedly connected to a fixed tube (21). A rotating shaft (22) is rotatably inserted between the bottom of the inner wall of the housing (2) and the top of the fixed tube (21). A bevel gear (23) is fixedly connected to the lower end of the rotating shaft (22). A motor (24) is installed at the other end of the top of the base (1). A rotating shaft (25) is fixedly connected to the output end of the motor (24). The rotating shaft (25) extends into the interior of the housing (2) and a bevel gear (26) is fixedly connected to the end. The bevel gear (26) meshes with the bevel gear (23). A granulation disc (27) is fixedly connected to the top of the rotating shaft (22).

3. The anti-clogging discharge mechanism for a biomass pellet mill according to claim 2, characterized in that: The front surface of the pelleting shell (3) is provided with an observation window (31), and the top of the rotating shaft (22) extends into the interior of the pelleting shell (3).

4. The anti-clogging discharge mechanism for a biomass pellet mill according to claim 1, characterized in that: The top of the pelleting shell (3) is fixedly connected to the feed cylinder (6), the top of the feed cylinder (6) is equipped with a motor three (61), the output end of the motor three (61) is fixedly connected to a rotating shaft three (62), the rotating shaft three (62) extends into the inside of the feed cylinder (6), the outer wall of the rotating shaft three (62) is fixedly connected to a spiral feeding blade (63), and the bottom outer wall of the rotating shaft three (62) is fixedly connected to a pelletizing roller (64). There are multiple pelletizing rollers (64) and they are distributed circumferentially.

5. The anti-clogging discharge mechanism for a biomass pellet mill according to claim 4, characterized in that: The upper part of one end of the feed cylinder (6) is fixedly connected to the feed hopper (7).

6. The anti-clogging discharge mechanism for a biomass pellet mill according to claim 1, characterized in that: The control panel (8) is mounted on the front surface of the housing (2).

Citation Information

Patent Citations

  • Biomass particle unit

    CN220496287U