Throwing device for applying biomass ash to crops

Abstract

The utility model discloses a throwing device for applying biomass ash to crops, belongs to the technical field of throwing of biomass ash, and solves the problems that the throwing device is relatively troublesome to use and cannot be used for directly throwing the biomass ash in a powder form. Comprising a machine shell, a handle fixedly connected with the machine shell, an air duct communicated with the machine shell and a connecting pipe, the end, away from the machine shell, of the connecting pipe is communicated with a material barrel with an opening in the top face, the top face of the material barrel can be opened and closed, the material barrel is filled with biomass ash, a fan is arranged in the machine shell, a self-reset switch is fixedly connected to the handle, and the self-reset switch is connected with the connecting pipe. A power supply is arranged in the grip, the power supply is electrically connected with the self-reset switch, the electric fan further comprises a control circuit, the control circuit is coupled with the fan, and the control circuit controls the rotating speed of the fan. According to the utility model, an operator is allowed to put biomass ash into the charging barrel and seal the charging barrel, and the ash is sprayed to farmland for fertilization through the fan. And if the biomass ash is blocked, the device can automatically pressurize to solve the problem.

Description

Technical Field

[0001] This utility model relates to the field of biomass ash spreading technology, and in particular to a spreading device for applying biomass ash to crops. Background Technology

[0002] Fertilization is a crucial step in agricultural production to improve crop yield and quality. It involves adding various nutrients to the soil to replenish the nutrients consumed during crop growth. The main purpose of fertilization is to provide essential nutrients such as nitrogen, phosphorus, and potassium, which are vital for plant growth. Nitrogen promotes leaf and branch growth, phosphorus aids root development and energy conversion, and potassium enhances disease resistance and improves fruit quality. In addition to these major elements, minor elements such as calcium, magnesium, and sulfur, as well as micronutrients like iron, manganese, zinc, copper, boron, and molybdenum, are also necessary for crop growth. Fertilization methods are diverse, including basal fertilizer, topdressing, and foliar spraying. Rational fertilization requires comprehensive consideration of crop type, growth stage, soil conditions, and climate to achieve efficient nutrient utilization and optimal crop growth.

[0003] Currently, biomass ash is also used as a fertilizer during fertilization. Biomass ash is the ash left after burning biomass, mainly composed of elements such as silicon, aluminum, iron, sodium, and titanium, and is a complex inorganic-organic mixture. It contains various minerals beneficial to the soil, such as potassium, phosphorus, calcium, and magnesium, and can be used as a fertilizer to help improve soil fertility.

[0004] Because of its powdery structure, it often needs to be dissolved in water before use, and then left to ferment for a period of time before it can be applied as fertilizer. This makes it rather troublesome to use, as it cannot be directly spread in powder form.

[0005] Therefore, a device for spreading biomass ash on crops is proposed to solve or alleviate the above problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for spreading biomass ash on crops.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A device for spreading biomass ash on crops includes a housing, a handle fixedly connected to the housing, a blower duct communicating with the housing, and a connecting pipe. The end of the connecting pipe away from the housing is connected to a material cylinder with an open top surface. The top surface of the material cylinder is openable and closable. The material cylinder is filled with biomass ash. A blower is installed inside the housing. A self-resetting switch is fixedly connected to the handle. A power supply is installed inside the handle and electrically connected to the self-resetting switch. The device also includes a control circuit coupled to the blower and controlling the speed of the blower.

[0009] Preferably, the material cylinder is detachably connected to a cap.

[0010] Preferably, the edge of the cap is fixedly connected to an outer ring, and the bottom surface of the cap is fixedly connected to an inner ring and an outer ring. When the material cylinder is detachably connected to the cap, the material cylinder is embedded between the outer ring and the inner ring.

[0011] Preferably, the lower end of the inner ring of the outer cylinder is provided with a guide slope, and the lower end of the inner cylinder is fixedly connected to an inner constricting cylinder that narrows from top to bottom, and the distance between the inner constricting cylinder and the guide slope gradually decreases from bottom to top.

[0012] Preferably, the control circuit includes

[0013] A trigger circuit, wherein the input terminal of the trigger circuit is electrically connected between the fan and the self-reset switch, and the trigger circuit is triggered and outputs a trigger signal in response to a high-level signal after the self-reset switch is closed;

[0014] Distance detection circuit, which is electrically connected between the fan and the self-reset switch, collects the real-time amount of biomass ash in the connecting pipe, compares it with the reference amount, and then outputs a signal.

[0015] A concentration detection circuit is also electrically connected between the fan and the self-reset switch. The concentration detection circuit collects the concentration of biomass ash flue gas at the connection between the fan duct and the casing and outputs a signal.

[0016] The controller is coupled to the fan via a motor drive circuit. The controller receives signals and controls the fan speed according to the signals.

[0017] Preferably, the distance detection circuit includes

[0018] The distance sensor has a through hole on the outer ring of the end of the connecting tube facing the housing, which communicates with the interior of the tube. The probe of the distance sensor is fixedly connected in the through hole. The power terminal of the distance sensor is electrically connected to a self-reset switch. The ground terminal of the distance sensor is grounded. The distance sensor collects the distance between its probe and the inner wall of the connecting tube and outputs a distance signal.

[0019] A voltage comparison circuit, wherein the input terminal of the voltage comparison circuit is coupled to the output terminal of the distance sensor, and the voltage comparison circuit outputs a comparison signal in response to the voltage of the distance signal being less than the voltage of a preset distance reference signal;

[0020] An AND gate circuit is provided, wherein the two input terminals of the AND gate circuit are respectively coupled to the output terminals of the voltage comparison circuit and the trigger circuit, and the output terminal of the AND gate circuit is coupled to the input terminal of the controller. The AND gate circuit responds simultaneously to the comparison signal and the trigger signal of the same level and outputs a judgment signal of the same level to the controller.

[0021] Preferably, the concentration detection circuit includes

[0022] An infrared generator is provided. The outer ring of the air duct has a first through hole. The infrared generator is fixedly connected in the first through hole. The power terminal of the infrared generator is electrically connected to a self-resetting switch. The ground terminal of the infrared generator is grounded. The infrared generator emits infrared rays after being powered on.

[0023] An infrared receiver is provided. The outer ring of the air duct has a second perforation symmetrically arranged with the center of the first perforation. The infrared receiver is fixedly connected in the second perforation. The grounding terminal of the infrared receiver is grounded. The output terminal of the infrared receiver is coupled to the input terminal of the controller. After receiving infrared light from the infrared generator, the infrared receiver outputs an infrared signal to the controller.

[0024] Preferably, the voltage comparison circuit includes a minimum circuit based on the voltage comparator LM393, the trigger circuit includes an RS flip-flop, the controller includes an integrated circuit of an STM32F103RCT6 embedded microcontroller, and the motor drive circuit includes a TB67S109AFTG motor drive chip.

[0025] This utility model has the following beneficial effects:

[0026] When operating the device of this utility model, the operator adds biomass ash into the material cylinder and seals its top with a cap. Then, the biomass ash fills the connecting pipe and the material cylinder. The operator starts the blower by pressing the self-reset switch, so that the air carries the biomass ash out of the blower to complete the fertilization of the farmland. If the self-reset switch is released, the blower stops working.

[0027] With the self-reset switch closed, the power supply in the device simultaneously powers the distance sensor, infrared generator, and infrared receiver. The distance sensor monitors the real-time amount of biomass ash; when it exceeds a preset value, the trigger circuit and AND gate circuit work together to send a signal to the controller. The infrared receiver also sends a signal to the controller, indicating its operating status. The controller adjusts the fan speed based on these signals to prevent or resolve blockages, ensuring smooth discharge of biomass ash. In this way, the equipment not only fertilizes efficiently but also handles blockages, ensuring continuous operation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a partial cross-sectional view of the present invention;

[0031] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 This is a structural block diagram of the control circuit in this utility model;

[0033] Figure 5 This is a wiring diagram of the voltage comparison circuit, trigger circuit, and AND gate circuit in this utility model;

[0034] Figure 6 This is the wiring diagram of the controller in this utility model.

[0035] 1. Handle; 2. Housing; 3. Air duct; 4. Material cylinder; 5. Connecting pipe; 6. Cover; 7. Outer edge; 8. Inner cylinder; 9. Inner shrinking cylinder; 10. Outer cylinder; 11. Guide slope; 12. Self-resetting switch; 13. Fan; 14. Distance sensor; 15. Voltage comparison circuit; 16. Trigger circuit; 17. AND gate circuit; 18. Infrared generator; 19. Infrared receiver; 20. Controller; 21. Motor drive circuit. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] A device for spreading biomass ash on crops, such as Figure 1 and Figure 2As shown, the device includes a housing 2, a handle 1 fixedly connected to the housing 2, a blower 3 connected to the housing 2, and a connecting pipe 5. The end of the connecting pipe 5 away from the housing 2 is connected to a material cylinder 4 with an opening on the top surface. The top surface of the material cylinder 4 can be opened and closed. The material cylinder 4 is filled with biomass ash. A blower 13 is installed inside the housing 2. A self-resetting switch 12 is fixedly connected to the handle 1. A power supply is installed inside the handle 1. The power supply is electrically connected to the self-resetting switch 12. The device also includes a control circuit, which is coupled to the blower 13 and controls the speed of the blower 13.

[0043] like Figure 3 As shown, the top surface of the material cylinder 4 is openable and closable. Specifically, the material cylinder 4 is detachably connected to a cover 6. An outer edge 7 is fixedly connected to the edge of the cover 6. An inner cylinder 8 and an outer cylinder 10 are fixedly connected to the bottom surface of the cover 6. When the material cylinder 4 and the cover 6 are detachably connected, the material cylinder 4 is embedded between the outer cylinder 10 and the inner cylinder 8. A guide slope 11 is provided at the lower end of the inner ring of the outer cylinder 10. An inner shrinking cylinder 9 with a constricted opening from top to bottom is fixedly connected to the lower end of the inner cylinder 8. The distance between the inner shrinking cylinder 9 and the guide slope 11 gradually decreases from bottom to top.

[0044] Preferably, such as Figure 4 As shown, the control circuit includes a trigger circuit 16, a distance detection circuit, a concentration detection circuit, and a controller 20. The controller 20 is as follows: Figure 6 As shown, controller 20 includes an integrated circuit of STM32F103RCT6 embedded microcontroller.

[0045] The input terminal of the trigger circuit 16 is electrically connected between the fan 13 and the self-reset switch 12. The trigger circuit 16 is triggered and outputs a trigger signal after the high-level signal after the self-reset switch 12 is closed. The trigger circuit 16 includes an RS trigger. The distance detection circuit is electrically connected between the fan 13 and the self-reset switch 12. The distance detection circuit collects the real-time amount of biomass ash in the connecting pipe 5 and compares it with the reference amount before outputting a signal. The concentration detection circuit is also electrically connected between the fan 13 and the self-reset switch 12. The concentration detection circuit collects the concentration of biomass ash flue gas at the connection between the air duct 3 and the casing 2 and outputs a signal. The controller 20 is coupled to the fan 13 through the motor drive circuit 21. The controller 20 receives the signal and controls the speed of the fan 13 according to the signal. The motor drive circuit 21 includes a TB67S109AFTG motor drive chip.

[0046] Among them, such as Figure 5As shown, the distance detection circuit includes a distance sensor 14, a voltage comparison circuit 15, and an AND gate circuit 17. A through hole communicating with the interior of the housing 2 is opened on the outer ring of the connecting tube 5 facing the housing 2. The probe of the distance sensor 14 is fixedly connected inside the through hole. The power terminal of the distance sensor 14 is electrically connected to the self-reset switch 12. The ground terminal of the distance sensor 14 is grounded. The distance sensor 14 collects the distance between its probe and the inner wall of the connecting tube 5 and outputs a distance signal. The input terminal of the voltage comparison circuit 15 is coupled to the output terminal of the distance sensor 14. The voltage comparison circuit 15 outputs a comparison signal after responding to the distance signal voltage being less than the voltage of a preset distance reference signal. The voltage comparison circuit 15 includes a minimum circuit based on a voltage comparator LM393. The two input terminals of the AND gate circuit 17 are coupled to the output terminals of the voltage comparison circuit 15 and the trigger circuit 16, respectively. The output terminal of the AND gate circuit 17 is coupled to the input terminal of the controller 20. The AND gate circuit 17 simultaneously responds to the comparison signal and the trigger signal of the same level and outputs a judgment signal of the same level to the controller 20.

[0047] The concentration detection circuit includes an infrared generator 18 and an infrared receiver 19. A first through hole is opened on the outer ring of the air duct 3. The infrared generator is fixedly connected in the first through hole. The power terminal of the infrared generator 18 is electrically connected to the self-reset switch 12. The ground terminal of the infrared generator 18 is grounded. The infrared generator 18 emits infrared rays after being powered on. A second through hole is opened on the outer ring of the air duct 3, which is symmetrically arranged with the center of the first through hole. The infrared receiver 19 is fixedly connected in the second through hole. The ground terminal of the infrared receiver 19 is grounded. The output terminal of the infrared receiver 19 is coupled to the input terminal of the controller 20. After receiving the infrared rays from the infrared generator 18, the infrared receiver 19 outputs an infrared signal to the controller 20.

[0048] In actual operation, the operator can put biomass ash into the feed cylinder 4. After the biomass ash is put into the feed cylinder 4, the top opening of the feed cylinder 4 can be closed by the cap 6. During this process, since the distance between the inner shrinking cylinder 9 and the guide inclined surface 11 gradually decreases from bottom to top, the upper end of the feed cylinder 4 can be inserted between the inner cylinder 8 and the outer cylinder 10 under the guidance of both, thereby completing the sealing of the opening of the feed cylinder 4 by the cap 6.

[0049] At this time, the biomass ash fills the connecting pipe 5 and the material cylinder 4. Then, the operator holds the handle 1 and presses the self-reset switch 12, which closes the self-reset switch 12 and powers the blower 13. The blower 13 can guide air from the outside into the casing 2 and then let the air leave from the blower 3. At this time, the air will also carry a large amount of biomass ash out from the blower 3, so that the biomass ash can be sprayed onto the farmland through this device to complete the fertilization action. However, when the operator stops pressing the self-reset switch 12, the blower 13 will be de-energized and unable to work.

[0050] When the self-reset switch 12 is closed, the power supply can also power the distance sensor 14, infrared generator 18, and infrared receiver 19. The distance sensor 14 can output a distance signal based on the distance between its probe and the inner wall of the connecting pipe 5. Since the real-time amount of biomass ash is necessarily greater than the reference amount at this time, the voltage of the distance signal will be compared with the distance reference signal of the voltage comparison circuit 15, and a high-level comparison signal will be output. After the self-reset switch 12 is closed, the trigger circuit 16 will output a high-level trigger signal after receiving a high-level signal. The AND gate circuit 17 will simultaneously respond to the high-level trigger signal and the comparison signal and output a high-level judgment signal to the controller 20. During this process... When the infrared generator 18 is powered on, it emits infrared rays. When the infrared receiver 19 is powered on, it receives the infrared rays and outputs a high-level infrared signal to the controller 20. Conversely, if the infrared receiver 19 cannot receive the infrared rays, it will output a low-level infrared signal to the controller 20. If the controller 20 receives both a high-level judgment signal and an infrared signal at the same time, the controller 20 will control the fan 13 to increase its speed through the motor drive circuit 21, so that the casing 2 can be pressurized, and the blocked biomass ash will be driven by the air pressure to leave the casing 2 and the air duct 3 in sequence. However, if the controller 20 receives both a high-level judgment signal and a low-level infrared signal at the same time, it will control the fan 13 to keep its speed unchanged.

[0051] In summary, this device is able to perform the biomass ash spreading operation normally. However, if a blockage occurs, the device can automatically pressurize to prevent the blockage from happening.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for spreading biomass ash on crops, characterized in that, The device includes a housing (2), a handle (1) fixedly connected to the housing (2), a blower (3) connected to the housing (2), and a connecting pipe (5). The end of the connecting pipe (5) away from the housing (2) is connected to a material cylinder (4) with an open top surface. The top surface of the material cylinder (4) is openable and closable. The material cylinder (4) is filled with biomass ash. A blower (13) is installed inside the housing (2). A self-resetting switch (12) is fixedly connected to the handle (1). A power supply is installed inside the handle (1). The power supply is electrically connected to the self-resetting switch (12). The device also includes a control circuit. The control circuit is coupled to the blower (13). The control circuit controls the rotation speed of the blower (13).

2. The device for spreading biomass ash on crops according to claim 1, characterized in that, The barrel (4) is detachably connected to a cover (6).

3. The device for spreading biomass ash on crops according to claim 2, characterized in that, The edge of the cap (6) is fixedly connected to an outer edge (7), and the bottom surface of the cap (6) is fixedly connected to an inner cylinder (8) and an outer cylinder (10). When the material cylinder (4) is detachably connected to the cap (6), the material cylinder (4) is embedded between the outer cylinder (10) and the inner cylinder (8).

4. A device for spreading biomass ash on crops according to claim 3, characterized in that, The lower end of the inner ring of the outer cylinder (10) is provided with a guide slope (11), and the lower end of the inner cylinder (8) is fixedly connected with an inner shrinking cylinder (9) that is narrowed from top to bottom. The distance between the inner shrinking cylinder (9) and the guide slope (11) gradually decreases from bottom to top.

5. A spreading device for applying biomass ash to crops according to claim 1, characterized in that, The control circuit includes The input terminal of the trigger circuit (16) is electrically connected between the fan (13) and the self-reset switch (12). The trigger circuit (16) is triggered and outputs a trigger signal in response to the high-level signal after the self-reset switch (12) is closed. Distance detection circuit, which is electrically connected between the fan (13) and the self-reset switch (12), the distance detection circuit collects the real-time amount of biomass ash in the connecting pipe (5) and compares it with the reference amount before outputting a signal; The concentration detection circuit is also electrically connected between the fan (13) and the self-reset switch (12). The concentration detection circuit collects the concentration of biomass ash flue gas at the connection between the air duct (3) and the casing (2) and outputs a signal. The controller (20) is coupled to the fan (13) through the motor drive circuit (21). The controller (20) receives signals and controls the speed of the fan (13) according to the signals.

6. A spreading device for applying biomass ash to crops according to claim 5, characterized in that, The distance detection circuit includes The distance sensor (14) has a through hole on the outer ring of the connecting tube (5) facing the housing (2) that communicates with its interior. The probe of the distance sensor (14) is fixedly connected in the through hole. The power terminal of the distance sensor (14) is electrically connected to the self-reset switch (12). The ground terminal of the distance sensor (14) is grounded. The distance sensor (14) collects the distance between its probe and the inner wall of the connecting tube (5) and outputs a distance signal. A voltage comparison circuit (15) is provided, the input of which is coupled to the output of a distance sensor (14). The voltage comparison circuit (15) outputs a comparison signal in response to the voltage of the distance signal being less than the voltage of a preset distance reference signal. AND gate circuit (17), the two input terminals of the AND gate circuit (17) are respectively coupled to the output terminals of voltage comparison circuit (15) and trigger circuit (16), the output terminal of the AND gate circuit (17) is coupled to the input terminal of controller (20), and the AND gate circuit (17) responds to the comparison signal and trigger signal of the same level at the same time and outputs the judgment signal of the same level to controller (20).

7. A spreading device for applying biomass ash to crops according to claim 5, characterized in that, The concentration detection circuit includes an infrared generator (18) and an infrared receiver (19). The outer ring of the air duct (3) has a first through hole, the infrared generator is fixedly connected in the first through hole, the power terminal of the infrared generator (18) is electrically connected to the self-reset switch (12), the ground terminal of the infrared generator (18) is grounded, and the infrared generator (18) emits infrared rays after being powered on. The outer ring of the air duct (3) is provided with a second perforation symmetrically arranged with the center of the first perforation. The infrared receiver (19) is fixedly connected in the second perforation. The grounding end of the infrared receiver (19) is grounded. The output end of the infrared receiver (19) is coupled to the input end of the controller (20). After receiving the infrared light from the infrared generator (18), the infrared receiver (19) outputs an infrared signal to the controller (20).

8. A spreading device for applying biomass ash to crops according to claim 6, characterized in that, The voltage comparison circuit (15) includes a minimum circuit based on the voltage comparator LM393, the trigger circuit (16) includes an RS flip-flop, the controller (20) includes an integrated circuit of an STM32F103RCT6 embedded microcontroller (20), and the motor drive circuit (21) includes a TB67S109AFTG motor drive chip.

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