A low energy fuel particle cooling air duct

By introducing a spiral guide plate and a screen structure into the fuel pellet cooling duct, combined with a drive motor and a tipping plate, uniform mixing of fuel pellets and separation of impurities are achieved, solving the problem of reduced fuel quality and improving cooling efficiency and fuel utilization.

CN224302463UActive Publication Date: 2026-05-29HUBEI JIUYI HUANDU NEW ENERGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI JIUYI HUANDU NEW ENERGY CO LTD
Filing Date
2025-07-25
Publication Date
2026-05-29

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Abstract

The utility model relates to pellet fuel processing technical field, and disclose a kind of low-energy fuel pellet cooling air duct, including first base, the top of first base is fixedly connected with first shell. The low-energy fuel pellet cooling air duct, when user replaces first aggregate box, user rotates first clamping block through pivot, makes the end of first clamping block to escape the inner wall of first extension block, makes the connection of first aggregate box and first base to separate, so that user can replace, raw material is guided in the rotating process in second shell interior by first helical baffle, not only realize the uniform mixing of raw material, also promote the effective separation of scrap or too small particle in raw material, these scrap or particle are smoothly screened to first discharge pipe by first sieve hole, and finally fall into first aggregate box and are collected centrally, greatly improve the working efficiency of cooling air duct and the utilization of raw material, reduce the generation of waste material.
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Description

Technical Field

[0001] This utility model relates to the field of pellet fuel processing technology, and in particular to a low-energy fuel pellet cooling duct. Background Technology

[0002] Pellet fuel is essentially the direct combustion of biomass energy, representing the processing and utilization of biomass. Direct combustion methods can be categorized into four types: stove combustion, boiler combustion, waste combustion, and solid fuel combustion. A key component in the pellet processing is the equipment used to reduce pellet temperature. This is achieved by introducing cold air to cool the high-temperature pellet fuel to a safe temperature, facilitating subsequent storage and transportation.

[0003] Existing technologies often introduce impurities into the raw materials during use, such as fine dust, debris, or other non-fuel substances. If these impurities are not screened out in time, they may accumulate in the cooling duct, affecting the uniform distribution of airflow and thus reducing cooling efficiency. The presence of impurities may also lead to incomplete combustion of fuel particles during subsequent use, increasing the emission of ash and pollutants and reducing the overall quality of the fuel. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of not having a structure to screen impurities, which leads to a reduction in the overall quality of fuel particles. To this end, we propose a low-energy fuel particle cooling air duct.

[0005] To achieve the above objectives, this application adopts the following technical solution: a low-energy fuel pellet cooling duct, comprising a first base, a first housing fixedly connected to the top of the first base, a first top cover rotatably connected to one end of the surface of the first housing via a rotating shaft, a first feed hopper installed on one side of the first top cover, a first drive motor installed on one side of the first housing, a second housing installed at the output end of the first drive motor, a plurality of first screen holes opened inside the second housing, a first spiral guide plate installed at both ends inside the second housing, a second top cover threadedly connected to the inner wall of one end of the first spiral guide plate, a first discharge pipe installed at the bottom end inside the first housing, a first collection box slidably connected to the inner wall of the first base, a refrigeration device body installed on the surface of the first housing, a first extension block fixedly connected to the bottom end of one side of the first base, and a first clamping block rotatably connected to both ends of one side of the first collection box via a rotating shaft, with one end of the first clamping block inserted into the inner wall of the first extension block.

[0006] Preferably, a first groove block is fixedly connected to one side of the first collection box, and a first sliding buckle is slidably connected to the inner wall of the first groove block, with the inner wall of the first sliding buckle slidably connected to the surface of the first clamping block.

[0007] Preferably, a first circular groove is provided at one end of the first sliding buckle, and a first sliding rod is slidably connected to the inner wall of the first circular groove. The two ends of the first sliding rod are fixedly connected to the two sides of the inner wall of the first groove block.

[0008] Preferably, a first spring is fixedly connected to one side of the first sliding buckle, and the other end of the first spring is fixedly connected to one side of the inner wall of the first groove block.

[0009] Preferably, the top of the first base is provided with first guide rails at both ends, and the bottom of the first collection box is provided with first moving resistance devices around the perimeter, with the surface of the first moving resistance devices slidably connected to the inner wall of the first guide rails.

[0010] Preferably, a second drive motor is installed at both ends on one side of the second housing, and a first tilting plate is installed at the output end of the second drive motor.

[0011] Preferably, a first limiting guide rail is installed at both ends inside the first housing, and four first auxiliary moving assist devices are installed at both ends on the surface of the second housing. The surfaces of the first auxiliary moving assist devices are slidably connected to the inner walls of the first limiting guide rails.

[0012] Technical effects and advantages of this utility model:

[0013] In this invention, when the user replaces the first collection box, the user rotates the first clamping block via the rotating shaft, causing one end of the first clamping block to disengage from the inner wall of the first extension block, thus detaching the first collection box from the first base and allowing the user to replace it. During the rotation of the raw material inside the second shell, it is guided by the first spiral guide plate, which not only achieves uniform mixing of the raw material but also promotes the effective separation of waste or excessively small particles in the raw material. These waste or particles pass smoothly through the first screen holes to the first discharge pipe and finally fall into the first collection box for centralized collection, greatly improving the working efficiency of the cooling air duct and the utilization rate of the raw material, and reducing the generation of waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a vertical cross-sectional view of the present invention;

[0016] Figure 3 This is an exploded sectional view of the present invention;

[0017] Figure 4 This is an exploded view of the first casing of this utility model;

[0018] Figure 5 This is an exploded view of the first slot block of this utility model;

[0019] Figure 6This is an exploded view of the first material inlet of this utility model.

[0020] Legend: 1. First base; 2. First housing; 3. First top cover; 4. First feed hopper; 5. First drive motor; 6. Second housing; 7. First screen hole; 8. First spiral guide plate; 9. Second top cover; 10. First discharge pipe; 11. First collection box; 12. Refrigeration device body; 13. First extension block; 14. First clamping block; 15. First groove block; 16. First sliding buckle; 17. First circular groove; 18. First slide rod; 19. First spring; 20. First guide rail; 21. First moving resistance device; 22. Second drive motor; 23. First tilting plate; 24. First limiting guide rail; 25. First auxiliary moving assist device. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figures 1-5As shown, this utility model provides a technical solution: a low-energy fuel pellet cooling air duct, including a first base 1, a first housing 2 fixedly connected to the top of the first base 1, a first top cover 3 rotatably connected to one end of the surface of the first housing 2 via a rotating shaft, a first feed hopper 4 installed on one side of the first top cover 3, a first drive motor 5 installed on one side of the first housing 2, a second housing 6 installed at the output end of the first drive motor 5, a plurality of first screen holes 7 opened inside the second housing 6, and first spiral guide plates 8 installed at both ends inside the second housing 6, with one end of the first spiral guide plate 8... The inner wall of the first housing 2 is connected to a second top cover 9 by threads. A first unloading pipe 10 is installed at the bottom of the first housing 2. A first collection box 11 is slidably connected to the inner wall of the first base 1. A refrigeration device body 12 is installed on the surface of the first housing 2. A first extension block 13 is fixedly connected to the bottom of one side of the first base 1. A first clamping block 14 is rotatably connected to both ends of one side of the first collection box 11 via a rotating shaft. One end of the first clamping block 14 is inserted into the inner wall of the first extension block 13. When the user drives the refrigeration device body 12 to generate cold air through the control panel on one side of the first base 1, the cold air is then released through the first top cover. The first feed hopper 4, installed on one side, pours raw materials into the interior of the second housing 6. The user then drives the first drive motor 5 via the control panel, causing it to rotate the second housing 6 inside the first housing 2. The raw materials, guided by the first spiral guide plate 8 inside the second housing 6, are collected in the center. As the second housing 6 rotates, waste or excessively small particles are screened through the first screen hole 7 and discharged along the first discharge pipe 10 into the interior of the first collection box 11. When the first collection box 11 needs replacement, the user rotates the first clamping block 14 via the rotating shaft. One end of the first clamping block 14 is disengaged from the inner wall of the first extension block 13, and the connection between the first collection box 11 and the first base 1 is disengaged, allowing the user to replace it. During the rotation of the raw material inside the second housing 6, it is guided by the first spiral guide plate 8, which not only achieves uniform mixing of the raw material, but also promotes the effective separation of waste or excessively small particles in the raw material. These waste or particles are smoothly screened through the first screen hole 7 to the first discharge pipe 10, and finally fall into the first collection box 11 for centralized collection, which greatly improves the working efficiency of the cooling air duct and the utilization rate of raw materials, and reduces the generation of waste.

[0023] Reference Figure 5 and Figure 6As shown in this embodiment: a first groove block 15 is fixedly connected to one side of the first collection box 11, and a first sliding buckle 16 is slidably connected to the inner wall of the first groove block 15. The inner wall of the first sliding buckle 16 is slidably connected to the surface of the first clamping block 14. When the user rotates the first clamping block 14 through the pivot, so that the first clamping block 14 and the first extension block 13 are inserted into each other, the user moves the first sliding buckle 16 along the inner wall of the first groove block 15, so that the first sliding buckle 16 restricts the first clamping blocks 14 on both sides, making the connection between the first clamping block 14 and the first extension block 13 more secure.

[0024] Reference Figure 5 and Figure 6 As shown in this embodiment: a first circular groove 17 is provided at one end of the first sliding buckle 16, and a first sliding rod 18 is slidably connected to the inner wall of the first circular groove 17. The two ends of the first sliding rod 18 are fixedly connected to the two sides of the inner wall of the first groove block 15. When the user moves the first sliding buckle 16 through the first circular groove 17 on the surface of the first sliding rod 18, the first sliding buckle 16 is more stable when moving on the inner wall of the first groove block 15.

[0025] Reference Figure 5 and Figure 6 As shown in this embodiment: a first spring 19 is fixedly connected to one side of the first sliding buckle 16, and the other end of the first spring 19 is fixedly connected to one side of the inner wall of the first groove block 15. When the user prepares to move the first sliding buckle 16 along the inner wall of the first groove block 15 to release the restriction of the first clamping blocks 14 on both sides, the first sliding buckle 16 squeezes the first spring 19, causing the first spring 19 to store and compress. When the user needs to move the first sliding buckle 16 back to its original position, the user releases the first sliding buckle 16, causing the first spring 19 to release and push the first sliding buckle 16 back to its original position. The operation steps of the device are simplified by the first spring 19, making the operation of the user easier.

[0026] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown in this embodiment: First guide rails 20 are provided at both ends of the top of the first base 1, and first moving resistance devices 21 are installed around the bottom of the first collection box 11. The surface of the first moving resistance device 21 is slidably connected to the inner wall of the first guide rail 20. When the user replaces the first collection box 11, the first moving resistance device 21 installed at the bottom of the first collection box 11 moves along the inner wall of the first guide rail 20, so that the first collection box 11 remains stable during the replacement process, avoiding shaking or tilting, and enhancing the stability of the first collection box 11 during replacement.

[0027] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6As shown in this embodiment: a second drive motor 22 is installed at both ends of one side of the second housing 6, and a first tilting plate 23 is installed at the output end of the second drive motor 22. When the user puts the raw material into the interior of the second housing 6, the second drive motor 22 at both ends of one side of the second housing 6 is driven, and the second drive motor 22 drives the first tilting plate 23, so that the first tilting plate 23 stirs the raw material inside the second housing 6. Through the stirring action of the first tilting plate 23, the raw material is evenly distributed inside the second housing 6, which increases the contact area between the raw material and the cooling air duct, thereby enhancing the cooling effect. The driving method of the second drive motor 22 is cleverly designed to ensure the stability and durability of the first tilting plate 23 during the stirring process, and to reduce energy consumption and wear.

[0028] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown in this embodiment: First limiting guide rails 24 are installed at both ends inside the first housing 2, and four first auxiliary moving assist devices 25 are installed at both ends on the surface of the second housing 6. The surface of the first auxiliary moving assist device 25 is slidably connected to the inner wall of the first limiting guide rail 24. When the user starts the device, the second housing 6 moves through the inner wall of the first limiting guide rail 24 inside the first housing 2 via the first auxiliary moving assist devices 25 installed on its surface, making the movement trajectory of the second housing 6 more stable. At the same time, the sliding design of the first auxiliary moving assist device 25 on the inner wall of the first limiting guide rail 24 reduces frictional resistance, further reducing energy consumption, which not only improves the operating efficiency of the device, but also extends the service life of the device.

[0029] Working principle:

[0030] Step 1: The user first starts the cooling device 12 to generate cold air through the control panel on one side of the first base 1. Then, the user pours the raw material into the second housing 6 through the first feed hopper 4 installed on one side of the first top cover 3. The user drives the first drive motor 5 through the control panel, which drives the second housing 6 inside the first housing 2 to rotate. During the rotation of the second housing 6, the first spiral guide plate 8 inside collects the raw material to the middle position and filters the waste or too small particles through the first screen hole 7 to the first discharge pipe 10. Finally, the material falls into the first collection box 11 for centralized collection. When the first collection box 11 needs to be replaced, the user rotates the first clamping block 14 so that one end of it comes out of the inner wall of the first extension block 13, thereby disconnecting the first collection box 11 from the first base 1 for easy replacement.

[0031] Step two: The user rotates the first clamping block 14 via the pivot to make it engage with the first extension block 13. Then, the user moves the first sliding buckle 16 along the inner wall of the first groove block 15 to restrict the first clamping blocks 14 on both sides, thereby making the connection between the first clamping block 14 and the first extension block 13 more secure. During the movement, the first sliding buckle 16 slides along the surface of the first slide rod 18 through the first circular groove 17 to ensure that its movement along the inner wall of the first groove block 15 is more stable. When it is necessary to release the restriction, the user pushes the first sliding buckle 16 to squeeze the first spring 19, causing the spring to store and compress. When the first sliding buckle 16 is released, the first spring 19 releases and rebounds, pushing the first sliding buckle 16 back to its original position.

[0032] Step 3: When the user replaces the first material collection box 11, the first moving resistance device 21 installed at its bottom moves along the inner wall of the first guide rail 20 to ensure that the first material collection box 11 remains stable during replacement, avoiding shaking or tilting, thereby enhancing its stability during replacement. When the user pours the raw material into the second housing 6, the second drive motors 22 at both ends of one side of the second housing 6 drive the first tilting plate 23 to stir the raw material, making the raw material evenly distributed in the second housing 6, increasing the contact area with the cooling air duct, and enhancing the cooling effect. The design of the second drive motor 22 ensures the stability and durability of the stirring process of the first tilting plate 23, reducing energy consumption and wear. When the user starts the equipment, the second housing 6 moves smoothly along the inner wall of the first limiting guide rail 24 inside the first housing 2 through the first auxiliary moving assist device 25 installed on the surface, reducing frictional resistance.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 low-energy fuel pellet cooling duct, comprising a first base, characterized in that: A first housing is fixedly connected to the top of the first base. A first top cover is rotatably connected to one end of the surface of the first housing via a rotating shaft. A first feed hopper is installed on one side of the first top cover. A first drive motor is installed on one side of the first housing. A second housing is installed at the output end of the first drive motor. Several first screen holes are opened inside the second housing. A first spiral guide plate is installed at both ends inside the second housing. A second top cover is threadedly connected to the inner wall of one end of the first spiral guide plate. A first discharge pipe is installed at the bottom inside the first housing. A first collection box is slidably connected to the inner wall of the first base. A refrigeration device body is installed on the surface of the first housing. A first extension block is fixedly connected to the bottom end of one side of the first base. A first clamping block is rotatably connected to both ends of one side of the first collection box via a rotating shaft. One end of the first clamping block is inserted into the inner wall of the first extension block.

2. The low-energy fuel pellet cooling duct according to claim 1, characterized in that: A first groove block is fixedly connected to one side of the first collection box, and a first sliding buckle is slidably connected to the inner wall of the first groove block. The inner wall of the first sliding buckle is slidably connected to the surface of the first clamping block.

3. The low-energy fuel particle cooling duct according to claim 2, characterized in that: One end of the first sliding buckle is provided with a first circular groove, and a first sliding rod is slidably connected to the inner wall of the first circular groove. The two ends of the first sliding rod are fixedly connected to the two sides of the inner wall of the first groove block.

4. The low-energy fuel pellet cooling duct according to claim 2, characterized in that: A first spring is fixedly connected to one side of the first sliding buckle, and the other end of the first spring is fixedly connected to one side of the inner wall of the first groove block.

5. The low-energy fuel pellet cooling duct according to claim 1, characterized in that: The first base has first guide rails at both ends of its top, and first moving resistance devices are installed around the bottom of the first collection box. The surface of the first moving resistance device is slidably connected to the inner wall of the first guide rail.

6. The low-energy fuel pellet cooling duct according to claim 1, characterized in that: A second drive motor is installed at both ends on one side of the second housing, and a first tilting plate is installed at the output end of the second drive motor.

7. The low-energy fuel pellet cooling duct according to claim 1, characterized in that: The first housing has a first limiting guide rail installed at both ends inside, and the second housing has four first auxiliary moving assist devices installed at both ends on its surface. The surfaces of the first auxiliary moving assist devices are slidably connected to the inner walls of the first limiting guide rails.