Fertilizer applicator

Abstract

The utility model provides a fertilizer applicator which comprises a machine case, a solid fertilizer bin, a spiral feeder, a material dissolving barrel, a liquid fertilizer feeding pipe and a fertilizer discharging header pipe, the bottom end of the solid fertilizer bin is connected with a feeding opening of the spiral feeder, and a discharging opening of the spiral feeder is in butt joint with a barrel opening of the material dissolving barrel; an electric stirrer and a liquid level sensor used for detecting the liquid level are arranged on the material dissolving barrel, a water inlet pipe and a dissolved solution output pipe are communicated with the material dissolving barrel, an output port of the dissolved solution output pipe and an output port of the liquid fertilizer feeding pipe are both communicated with an input port of the fertilizer discharging header pipe, and a water inlet electromagnetic valve is installed on the water inlet pipe; discharging electromagnetic valves are installed on the dissolving liquid output pipe and the liquid fertilizer feeding pipe, and a booster pump and a flow sensor are installed on the fertilizer discharging main pipe. The fertilizer applicator has the advantages that solid fertilizer and liquid fertilizer can be applied, and the fertilizing amount is easy to control.

Description

Technical Field

[0001] This utility model relates to a fertilizer application device, specifically, a fertilizer applicator. Background Technology

[0002] Based on their physical state, fertilizers can be divided into solid fertilizers (such as compound fertilizers) and liquid fertilizers (such as water-soluble fertilizers). In one existing fertilization method, fertilizer needs to be injected into the irrigation pipe and fertilization is completed during the irrigation process. Solid fertilizers need to be dissolved before injection, while liquid fertilizers can be injected directly. The two are generally fertilized using different equipment. When changing the type of fertilizer, the fertilization equipment also needs to be changed simultaneously, making the operation quite cumbersome. In addition, when preparing and injecting fertilizers, the amount of fertilizer is currently mainly controlled manually, which requires a high level of operational experience and is not easy to control accurately.

[0003] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a fertilizer applicator that can apply both solid and liquid fertilizers and whose application rate is easy to control.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fertilizer applicator, comprising a chassis and a solid fertilizer silo, a screw feeder, a dissolving tank, a liquid fertilizer inlet pipe, and a fertilizer outlet main pipe disposed within the chassis. The bottom end of the solid fertilizer silo is connected to the inlet of the screw feeder, and the outlet of the screw feeder is connected to the opening of the dissolving tank. The dissolving tank is equipped with an electric stirrer and a liquid level sensor for detecting the liquid level. The dissolving tank is connected to a water inlet pipe and a dissolving liquid outlet pipe. The output ports of the dissolving liquid outlet pipe and the liquid fertilizer inlet pipe are both connected to the input port of the fertilizer outlet main pipe. A water inlet solenoid valve is installed on the water inlet pipe, and a discharge solenoid valve is installed on both the dissolving liquid outlet pipe and the liquid fertilizer inlet pipe. A booster pump and a flow sensor are installed on the fertilizer outlet main pipe.

[0006] Beneficial effects: The inlet pipe is used to connect to the upstream of the irrigation water pipe, and the fertilizer outlet main pipe is used to connect to the downstream of the irrigation water pipe. By adjusting the rotation speed of the screw feeder, the feeding speed of solid fertilizer can be controlled. The solid fertilizer is dissolved into a solution in the dissolving tank. The liquid fertilizer inlet pipe is used to connect to the water-soluble fertilizer tank. Both the solid fertilizer solution and the liquid fertilizer are finally transported back to the irrigation water pipe through the fertilizer outlet main pipe. By adjusting the opening of the discharge solenoid valve, the fertilizer discharge speed can be controlled.

[0007] Based on the above, it also includes a PLC controller. The flow sensor transmits flow information to the PLC controller. The PLC controller controls the opening degree of the two discharge solenoid valves according to whether the flow information reaches a set threshold. The liquid level sensor transmits liquid level information to the PLC controller. The PLC controller controls the opening and closing of the water inlet solenoid valve according to whether the liquid level information reaches a set threshold.

[0008] Beneficial effects: The flow sensor monitors the fertilizer discharge rate, and the liquid level sensor monitors the liquid level, facilitating the PLC controller to automate the control of the inlet and outlet liquids.

[0009] Based on the above, it also includes a touch screen, which inputs control commands to the PLC controller, and the PLC controller controls the working status of the screw feeder, the electric agitator and the booster pump according to the control commands.

[0010] Beneficial effects: The touch screen facilitates the input of control commands to the PLC controller, enabling the PLC controller to automatically control the entire equipment according to the control commands.

[0011] Based on the above, the solid fertilizer silo is located at the top of the machine housing, the screw feeder is located in the middle of the machine housing and discharges material towards the rear of the machine housing, the dissolving tank is located at the lower rear of the machine housing, and the booster pump, the water inlet pipe, the dissolving liquid output pipe, the liquid fertilizer inlet pipe, and the fertilizer outlet main pipe are all located at the lower front of the machine housing.

[0012] Beneficial effects: The more compact structural layout helps reduce the size of the equipment.

[0013] Based on the above, the bottom of the chassis is equipped with wheels, the rear of the chassis is equipped with a push handle, and the lower front part of the side wall of the chassis is equipped with a connecting pipe panel. The pipe interfaces of the water inlet pipe, the liquid output pipe, the liquid fertilizer inlet pipe, and the fertilizer outlet main pipe are all installed on the connecting pipe panel.

[0014] Beneficial effects: The wheels and push handle facilitate the movement of the equipment and concentrate all pipeline interfaces on the connecting panel, making it convenient for staff to operate in a centralized manner. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the fertilizer applicator in this utility model.

[0016] Figure 2 This is a side view of the fertilizer applicator in this utility model.

[0017] Figure 3This is a top view of the fertilizer applicator in this utility model.

[0018] Figure 4 This is a block diagram illustrating the control principle of the fertilizer applicator in this utility model.

[0019] In the diagram: 1. Chassis; 2. Solid fertilizer silo; 3. Screw feeder; 4. Dissolving tank; 5. Water inlet pipe; 6. Electric agitator; 7. Liquid level sensor; 8. Liquid fertilizer inlet pipe; 9. Dissolving liquid outlet pipe; 10. Main fertilizer outlet pipe; 11. Water inlet solenoid valve; 12. Discharge solenoid valve; 13. Flow sensor; 14. Touch screen; 15. Booster pump; 16. Wheels; 17. Push handle; 18. Connecting panel; 19. Pipeline interface. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0021] like Figure 1-4 As shown, a fertilizer applicator includes a casing 1 and a solid fertilizer bin 2, a screw feeder 3, a dissolving tank 4, a liquid fertilizer inlet pipe 8, and a fertilizer outlet main pipe 10 disposed within the casing 1. The bottom end of the solid fertilizer bin 2 is connected to the inlet of the screw feeder 3, and the outlet of the screw feeder 3 is connected to the opening of the dissolving tank 4. The dissolving tank 4 is equipped with an electric stirrer 6 and a liquid level sensor 7 for detecting the liquid level. The dissolving tank 4 is connected to a water inlet pipe 5 and a dissolving liquid outlet pipe 9. The output ports of the dissolving liquid outlet pipe 9 and the liquid fertilizer inlet pipe 8 are both connected to the input port of the fertilizer outlet main pipe 10. The water inlet pipe 5 is equipped with a water inlet solenoid valve 11, and the dissolving liquid outlet pipe 9 and the liquid fertilizer inlet pipe 8 are both equipped with discharge solenoid valves 12. The fertilizer outlet main pipe 10 is equipped with a booster pump 15 and a flow sensor 13.

[0022] To enable automated operation, the fertilizer applicator also includes a PLC controller and a touch screen 14. The touch screen 14 inputs control commands to the PLC controller, which then controls the operating status of the screw feeder 3, the electric mixer 6, and the booster pump 15 according to the control commands. Additionally, the flow sensor 13 transmits flow information to the PLC controller, which controls the opening degree of the two discharge solenoid valves 12 based on whether the flow information reaches a set threshold, thereby controlling the flow rate. The level sensor 7 transmits level information to the PLC controller, which controls the opening and closing of the water inlet solenoid valve 11 based on whether the level information reaches a set threshold, thereby controlling the level in the dissolving tank 4.

[0023] In practical use, the inlet pipe 5 is connected upstream of the irrigation water pipe, and the fertilizer outlet main pipe 10 is connected downstream of the irrigation water pipe. When using solid fertilizer, solid fertilizer is poured into the solid fertilizer bin 2. Control commands are input to the PLC controller via the touch screen 14, including the solid fertilizer feed rate, water flow rate, stirring time, and output flow rate of the solid fertilizer solution. The PLC controller controls the feeding speed of the solid fertilizer by adjusting the rotation speed of the screw feeder 3. After the water level in the bin is reached by the level sensor 7, the electric agitator is started. The mixer 6 stirs and dissolves the fertilizer, then the booster pump 15 is turned on, and the opening of the discharge solenoid valve 12 on the dissolved liquid output pipe 9 is adjusted so that the fertilizer is injected into the irrigation water pipe at the set flow rate, and fertilization is completed with irrigation. When using liquid fertilizer, the liquid fertilizer inlet pipe 8 is connected to a water-soluble fertilizer tank. The control command, including the liquid fertilizer output flow rate, is input to the PLC controller through the touch screen 14. The booster pump 15 is turned on, and the opening of the discharge solenoid valve 12 on the liquid fertilizer inlet pipe 8 is adjusted so that the fertilizer is injected into the irrigation water pipe at the set flow rate, and fertilization is completed with irrigation.

[0024] To make the equipment structure more compact and smaller in size, the solid fertilizer bin 2 is located at the upper part of the casing 1, the screw feeder 3 is located in the middle of the casing 1 and discharges material towards the rear of the casing 1, the dissolving tank 4 is located at the lower rear part of the casing 1, and the booster pump 15, the water inlet pipe 5, the dissolving liquid output pipe 9, the liquid fertilizer inlet pipe 8, and the fertilizer outlet main pipe 10 are all located at the lower front part of the casing 1.

[0025] In addition, the bottom of the chassis 1 is provided with wheels 16 and the rear of the chassis 1 is provided with a push handle 17 for easy movement. The lower front part of the side wall of the chassis 1 is provided with a connecting pipe panel 18. The pipe interface 19 of the water inlet pipe 5, the pipe interface 19 of the liquid fertilizer inlet pipe 8 and the pipe interface 19 of the fertilizer outlet main pipe 10 are all installed on the connecting pipe panel 18, which facilitates the centralized installation of external pipes at this position.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A fertilizer applicator, characterized in that: The system includes a chassis and, within the chassis, a solid fertilizer silo, a screw feeder, a dissolving tank, a liquid fertilizer inlet pipe, and a main fertilizer outlet pipe. The bottom end of the solid fertilizer silo is connected to the inlet of the screw feeder, and the outlet of the screw feeder is connected to the opening of the dissolving tank. The dissolving tank is equipped with an electric stirrer and a liquid level sensor for detecting the liquid level. The dissolving tank is connected to a water inlet pipe and a dissolving liquid outlet pipe. The output ports of the dissolving liquid outlet pipe and the liquid fertilizer inlet pipe are both connected to the input port of the main fertilizer outlet pipe. The water inlet pipe is equipped with a water inlet solenoid valve, and both the dissolving liquid outlet pipe and the liquid fertilizer inlet pipe are equipped with discharge solenoid valves. The main fertilizer outlet pipe is equipped with a booster pump and a flow sensor.

2. The fertilizer applicator according to claim 1, characterized in that: It also includes a PLC controller, the flow sensor transmits flow information to the PLC controller, the PLC controller controls the opening degree of the two discharge solenoid valves according to whether the flow information reaches a set threshold, the liquid level sensor transmits liquid level information to the PLC controller, and the PLC controller controls the opening and closing of the water inlet solenoid valve according to whether the liquid level information reaches a set threshold.

3. The fertilizer applicator according to claim 2, characterized in that: It also includes a touch screen that inputs control commands to the PLC controller, which in turn controls the operating status of the screw feeder, the electric agitator, and the booster pump based on the control commands.

4. The fertilizer applicator according to any one of claims 1-3, characterized in that: The solid fertilizer silo is located at the top of the machine casing, the screw feeder is located in the middle of the machine casing and discharges material towards the rear of the machine casing, the dissolving tank is located at the lower rear of the machine casing, and the booster pump, the water inlet pipe, the dissolving liquid output pipe, the liquid fertilizer inlet pipe and the fertilizer outlet main pipe are all located at the lower front of the machine casing.

5. The fertilizer applicator according to claim 4, characterized in that: The bottom of the chassis is equipped with wheels, and a push handle is provided at the rear of the chassis. A connecting pipe panel is provided on the lower front part of the side wall of the chassis. The pipe interfaces of the water inlet pipe, the liquid output pipe, the liquid fertilizer inlet pipe, and the fertilizer outlet main pipe are all installed on the connecting pipe panel.

Images