Biochar preparation device with solar heat collection function

Abstract

The utility model provides a solar heat-gathering charcoal preparation device, and relates to the technical field of charcoal preparation devices, the solar heat-gathering charcoal preparation device comprises a light-gathering plate, a drying carbonization cylinder and a driving assembly; a feeding funnel is arranged at the top of the drying and carbonizing barrel; a discharging hole is formed in the bottom; light gathering lines formed by light gathering points of the light gathering layers on the light gathering plates coincide with the axis of the drying and carbonizing cylinder, and a driving screw and a material pushing plate are further arranged in the drying and carbonizing cylinder. The device disclosed by the utility model has the beneficial effects that the device can gather heat of sunlight and utilize solar energy to prepare biochar, so that electric energy or fossil energy consumed by biochar preparation is greatly reduced; and a driving assembly of the device can drive a material pushing plate to move along the drying and carbonizing barrel, so that the biochar prepared from the biomass is pushed to a discharging opening, the automatic discharging process of the biochar is achieved, in this way, the biochar preparation efficiency can be improved, and the labor amount of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of biochar preparation devices, specifically a solar-powered biochar preparation device. Background Technology

[0002] Biochar is a type of charcoal used as a soil conditioner to aid plant growth. It has applications in agriculture as well as carbon capture and storage. Biochar is a product of the thermal decomposition of biomass materials (such as straw, fruit shells, and other biomass waste), and its main component is carbon molecules. Biochar can effectively prevent plant root diseases, reduce the bioavailability of heavy metals in the soil, and also help capture and remove greenhouse gases from the atmosphere through biochar sequestration, converting them into a very stable form and storing them in the soil.

[0003] The preparation of biochar usually requires drying and carbonization processes, which require a lot of heat. Traditionally, the drying and carbonization processes in biochar preparation usually use electricity or coal to provide heat. This method consumes a lot of electricity or fossil energy, thereby reducing the economic efficiency of biochar. In addition, the preparation process of biochar also requires manual loading and unloading, which consumes a lot of manpower. Utility Model Content

[0004] In view of this, the present invention provides a solar-powered biochar preparation device, including a concentrating plate, a drying carbonization cylinder, and a drive assembly;

[0005] The light-concentrating plate is provided with a light-concentrating layer, the cross-section of which is parabolic, and the focal points of the cross-section of the light-concentrating layer form a straight-line light-concentrating ray.

[0006] The drying carbonization cylinder is fixed to the focusing plate, the axis of the drying carbonization cylinder coincides with the focusing line, and the driving assembly is fixed to the end of the drying carbonization cylinder;

[0007] The drying carbonization cylinder is provided with a feed funnel at the top and a discharge port at the bottom. The drying carbonization cylinder is also provided with a drive screw and a material pusher plate. The drive screw is rotatably disposed inside the drying carbonization cylinder. The drive screw is coaxially disposed with the drying carbonization cylinder. The material pusher plate is provided with a through drive threaded hole in the axial direction. The drive screw passes through the drive threaded hole and is threadedly engaged with the drive threaded hole. One end of the drive screw passes through the drying carbonization cylinder and is connected to the drive assembly.

[0008] Furthermore, the driving component is a drive motor, the end of the drying carbonization cylinder is provided with a motor mounting base, the drive motor is fixed on the motor mounting base, and the output shaft of the drive motor is connected to the end of the drive screw through a coupling.

[0009] Furthermore, the outer wall of the drying carbonization cylinder is also provided with an electric heating coil.

[0010] Furthermore, the end of the drying carbonization cylinder is also provided with an air extraction port, and an air extraction pipe is connected to the air extraction port. The air extraction pipe is used to connect an air extraction device.

[0011] Furthermore, the light-concentrating plate is provided with two fixed supports.

[0012] Furthermore, the inner wall of the drying carbonization cylinder is provided with two shaped limiting protrusions, and the material push plate is provided with two limiting grooves, with the limiting protrusions respectively limited within the two limiting grooves.

[0013] Furthermore, the drying carbonization cylinder is also provided with two partition plates, which divide the internal cavity of the drying carbonization cylinder into three drying carbonization chambers of equal length. There are three feed funnels and three discharge ports. Each drying carbonization chamber is provided with a feed funnel at the top, and each discharge port is connected to a drying carbonization chamber.

[0014] Furthermore, the discharge ports are all located at the ends of the drying and carbonization chambers in which they are located.

[0015] Furthermore, all partition plates and all material push plates have multiple ventilation holes on their upper parts.

[0016] Furthermore, the outer wall of the drying carbonization cylinder is also provided with a heat-absorbing coating.

[0017] The beneficial effects of this solar-powered biochar preparation device are as follows:

[0018] This solar-powered biochar preparation device includes a concentrating plate, a drying and carbonization cylinder, and a drive assembly. The drying and carbonization cylinder has a feed hopper at the top and a discharge port at the bottom. The concentrating rays formed by the concentrating points on the concentrating layer of the concentrating plate coincide with the axis of the drying and carbonization cylinder. This allows the concentrating plate to concentrate solar energy to heat the drying and carbonization cylinder, increasing the temperature inside and drying the biomass into biochar. The drive assembly is fixed to the end of the drying and carbonization cylinder. The cylinder also contains a drive screw and a material pusher plate. The drive assembly drives the material pusher plate to move along the drying and carbonization cylinder, pushing the biochar to the discharge port, thus achieving automatic biochar discharge. This biochar preparation device can concentrate solar heat and utilize solar energy to prepare biochar, significantly reducing the electrical or fossil fuel consumption required for biochar preparation, thus lowering energy consumption. Furthermore, the device has an automatic discharge function, which improves biochar preparation efficiency and reduces the workload of workers. Attached Figure Description

[0019] Figure 1 This is a left-side cross-sectional view of a solar-powered biochar preparation device according to an embodiment of this utility model during operation.

[0020] Figure 2 This is a front view of a solar-powered biochar preparation device according to an embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the drying carbonization cylinder of a solar-heat-concentrating biochar preparation device according to an embodiment of this utility model.

[0022] Figure 4 yes Figure 3 Cross-sectional view at point AA.

[0023] In the above figure: 1-Concentrating plate, 11-Concentrating layer, 12-Fixed bracket, 13-Support column, 2-Drying carbonization cylinder, 21-Feed funnel, 22-Discharge port, 23-Cover, 24-Exhaust port, 25-Limiting protrusion, 3-Drive screw, 4-Material push plate, 41-Limiting groove; 42-Elastic ring, 43-Threaded sleeve, 5-Drive motor, 6-Divider plate, 61-Ventilation hole, 7-Electric heating ring, 8-Heat-absorbing coating. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0025] Please refer to Figures 1 to 4 The present invention relates to a solar-powered biochar preparation device, comprising a concentrating plate 1, a drying carbonization cylinder 2, and a drive assembly.

[0026] The light-concentrating plate 1 is a long, curved plate. A light-concentrating layer 11 is provided on the inner surface of the light-concentrating plate 1. The light-concentrating layer 11 is a smooth, curved surface with reflective function. The light-concentrating layer 11 can be a reflective coating, a glass plate, or a metal plate. The cross-section of the light-concentrating layer 11 is parabolic, and the focal points of each section of the light-concentrating layer 11 form a straight-line concentrating ray. The light-concentrating plate 1 provides support for the light-concentrating layer 11, and the light-concentrating layer 11 improves the light reflection effect of the light-concentrating plate 1.

[0027] The drying carbonization cylinder 2 is fixed to the light-concentrating plate 1 by the support column 13. The axis of the drying carbonization cylinder 2 coincides with the concentrating line of the light-concentrating layer 11. The outer wall of the drying carbonization cylinder 2 is also provided with a heat-absorbing coating 8. The light-concentrating layer 11 is used to concentrate sunlight towards the drying carbonization cylinder 2. The heat-absorbing coating 8 can fully absorb the sunlight gathered by the light-concentrating layer 11 and convert it into heat energy, thereby increasing the temperature of the drying carbonization cylinder 2.

[0028] The driving assembly is fixed to the end of the drying carbonization cylinder 2; the top of the drying carbonization cylinder 2 is provided with a feeding funnel 21, and the bottom of the drying carbonization cylinder 2 is provided with a discharge port 22. Both the feeding funnel 21 and the discharge port 22 are provided with a cover 23. In this embodiment, the feeding port of the feeding funnel 21 is a long strip-shaped opening, which allows the (biomass) material to be distributed along the axis of the drying carbonization cylinder 2 at the bottom of the drying carbonization cylinder 2, preventing the biomass material from accumulating inside the drying carbonization cylinder 2; after the material feeding is completed, both the feeding funnel 21 and the discharge port 22 are closed by the cover 23.

[0029] The drying carbonization cylinder 2 is further equipped with a drive screw 3 and a material pusher plate 4. The drive screw 3 is rotatably mounted inside the drying carbonization cylinder 2. The drive screw 3 is coaxially arranged with the drying carbonization cylinder 2. The material pusher plate 4 is axially provided with a threaded sleeve 43 that penetrates the material pusher plate 4. The threaded sleeve 43 has a through drive threaded hole. The drive screw 3 passes through the drive threaded hole and is threadedly engaged with the drive threaded hole. One end of the drive screw 3 passes through the drying carbonization cylinder 2 and is connected to the drive assembly. The end of the drying carbonization cylinder 2 is also provided with a suction port, which is connected to a suction pipe for connecting a suction device.

[0030] When using the device, the operator feeds the material (which has undergone a crushing process beforehand) into the drying carbonization cylinder 2 through the feed funnel 21 and then seals the opening of the feed funnel 21. The exhaust device draws air into the exhaust cylinder to create a negative pressure. The concentrator plate 1 gathers solar energy to heat the drying carbonization cylinder 2, increasing the temperature inside the drying carbonization cylinder 2. The drying carbonization cylinder 2 first evaporates the moisture in the material. As oxygen is extracted from the drying carbonization cylinder 2, the material inside the drying carbonization cylinder 2 carbonizes as the temperature continues to rise, thus turning the biomass material into biochar. After the biochar is produced, the drive assembly is activated, the discharge port 22 is opened, and the drive assembly drives the material pusher plate to move along the drying carbonization cylinder, pushing the biochar produced from the biomass to the discharge port, realizing the automatic discharge process of the biochar. This biochar preparation device can concentrate the heat of sunlight and use solar energy to prepare biochar, thereby greatly reducing the electrical energy or fossil energy consumed in biochar preparation, reducing energy consumption. In addition, the biochar preparation device also has an automatic material discharge function, which can improve the efficiency of biochar preparation and reduce the workload of workers.

[0031] In a preferred embodiment, the driving component is a drive motor 5 with a built-in reducer. The drying carbonization cylinder 2 has a motor mounting base at its end. The drive motor 5 is fixed on the motor mounting base. The output shaft of the drive motor 5 is connected to the end of the drive screw 3 through a coupling.

[0032] In a preferred embodiment, the outer wall of the drying carbonization cylinder 2 is also provided with an electric heating coil 7. The electric heating coil 7 is used as a backup heating element when the sunlight is insufficient, so as to assist the concentrating plate in heating the drying carbonization cylinder 2 and ensure that the biochar preparation device can work continuously.

[0033] In a preferred embodiment, the concentrator 1 is provided with two fixed brackets 12, which are used to support and fix the concentrator 1. Understandably, the fixed brackets 12 can fix the concentrator 1 to the ground, the roof, or to the solar tracking device.

[0034] In a preferred embodiment, the inner wall of the drying carbonization cylinder 2 is further provided with two shaped limiting protrusions 25, and the material pusher plate 4 is provided with two limiting grooves 41. The limiting protrusions 25 are respectively limited in the two limiting grooves 41. The cooperative structure of the limiting protrusions 25 and the limiting grooves 41 can restrict the rotation of the material pusher plate 4, so that the material pusher plate 4 can move stably along the drying carbonization cylinder 2.

[0035] In a preferred embodiment, the drying carbonization cylinder 2 is further provided with two partition plates 6, which divide the internal cavity of the drying carbonization cylinder 2 into three drying carbonization chambers of equal length. There are three feed funnels 21 and three discharge ports 22. Each drying carbonization chamber has a feed funnel 21 at its top, and each drying carbonization chamber has a material pusher plate 4 inside. Each discharge port 22 communicates with a drying carbonization chamber. The discharge ports 22 are all located at the end of their respective drying carbonization chambers, allowing the three material pushers 4 to move synchronously, thereby increasing the discharge speed of the biochar preparation device.

[0036] In a preferred embodiment, all partition plates 6 and all material push plates 4 are provided with multiple vent holes 61 on their upper parts. The vent holes 61 ensure that all drying and carbonization chambers are connected, facilitating the extraction device to extract air from all drying and carbonization chambers. The material push plate 4 is also provided with a rubber elastic ring 42 on its edge. The elastic ring 42 allows the edge of the material push plate 4 to contact the inner wall of the drying and carbonization cylinder 2, improving the pushing effect.

[0037] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0038] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 solar-powered biochar preparation device, characterized in that, Includes a light-concentrating plate, a drying carbonization cylinder, and a drive assembly; The light-concentrating plate is provided with a light-concentrating layer, the cross-section of which is parabolic, and the focal points of the cross-section of the light-concentrating layer form a straight-line light-concentrating ray. The drying carbonization cylinder is fixed to the focusing plate, the axis of the drying carbonization cylinder coincides with the focusing line, and the driving assembly is fixed to the end of the drying carbonization cylinder; The drying carbonization cylinder is provided with a feed funnel at the top and a discharge port at the bottom. The drying carbonization cylinder is also provided with a drive screw and a material pusher plate. The drive screw is rotatably disposed inside the drying carbonization cylinder. The drive screw is coaxially disposed with the drying carbonization cylinder. The material pusher plate is provided with a through drive threaded hole in the axial direction. The drive screw passes through the drive threaded hole and is threadedly engaged with the drive threaded hole. One end of the drive screw passes through the drying carbonization cylinder and is connected to the drive assembly.

2. The solar-powered biochar preparation device according to claim 1, characterized in that, The driving component is a drive motor. The end of the drying carbonization cylinder is provided with a motor mounting base. The drive motor is fixed on the motor mounting base. The output shaft of the drive motor is connected to the end of the drive screw through a coupling.

3. The solar-powered biochar preparation device according to claim 1, characterized in that, The outer wall of the drying carbonization cylinder is also equipped with an electric heating coil.

4. The solar-powered biochar preparation device according to claim 1, characterized in that, The drying carbonization cylinder is also provided with an air extraction port at its end, and an air extraction pipe is connected to the air extraction port. The air extraction pipe is used to connect to an air extraction device.

5. The solar-powered biochar preparation device according to claim 1, characterized in that, The light-concentrating plate is equipped with two fixed supports.

6. The solar-powered biochar preparation device according to claim 1, characterized in that, The inner wall of the drying carbonization cylinder is also provided with two shaped limiting protrusions, and the material push plate is provided with two limiting grooves. The limiting protrusions are respectively limited within the two limiting grooves.

7. The solar-thermal-concentrating biochar preparation device according to claim 1, characterized in that, The drying carbonization cylinder is also equipped with two partition plates, which divide the internal cavity of the drying carbonization cylinder into three drying carbonization chambers of equal length. There are three feed funnels and three discharge ports. Each drying carbonization chamber has a feed funnel at the top, and each discharge port is connected to a drying carbonization chamber.

8. The solar-powered biochar preparation apparatus according to claim 7, characterized in that, The discharge ports are all located at the end of the drying and carbonization chamber in which they are located.

9. The solar-thermal-concentrating biochar preparation device according to claim 8, characterized in that, All partitions and material pushers have multiple vents on the top.

10. A solar-powered biochar preparation apparatus according to claim 1, characterized in that, The outer wall of the drying carbonization cylinder is also provided with a heat-absorbing coating.

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