Water and fertilizer integrated fertilizer applicator special for field

Abstract

The invention relates to the technical field of fertilizer application machines, in particular to a field special water and fertilizer integrated fertilizer application machine which comprises a fertilizer application machine shell, an intelligent collection control system and a water and fertilizer execution system, and the intelligent collection control system and the water and fertilizer execution system are both located on the inner side of the fertilizer application machine shell; an intelligent collection control system and an industrial control touch screen are installed on the upper portion of the fertilizer applicator shell, a water and fertilizer execution system is arranged on the lower portion of the fertilizer applicator shell, a hole in the upper end of the left side of the fertilizer applicator shell is a fertilizer applicator fertilizer outlet, a hole in the lower end of the left side of the fertilizer applicator shell is a drainage hole, and three holes in the bottom of the rear side of the fertilizer applicator shell are fertilizer suction channel holes. The fertilizer suction pipeline is far larger than a Venturi tube fertilizer suction channel, the maximum single channel can reach 2500-3000 L / h, the fertilization rate is greatly increased, impurity deposition is not prone to being formed, the influence of impurities on the fertilizer suction pipeline is small, blockage is not prone to being caused, and the system stability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer spreaders, in particular to a water-fertilizer integrated fertilizer spreader special for fields. Background Art

[0002] The core component of existing integrated water and fertilizer spreaders for extracting fertilizer is a Venturi system, but its main drawback is its slow fertilizer absorption rate. For field crops, the irrigation time for a single irrigation cycle is relatively short, and fertilizer must be applied to the field in a short period of time. Currently, conventional Venturi fertilization rates cannot meet the daily needs of farmers. This invention improves the fertilizer absorption channel structure, increasing the absorption rate by 200%, meeting the needs of field fertilization.

[0003] Secondly, existing integrated water-fertilizer spreaders utilize high-frequency solenoid valves for individual channel control, offering precise control. However, these devices place high demands on fertilizer quality, requiring the liquid fertilizer to be free of impurities. Cost considerations prevent farmers from using exclusively water-soluble fertilizers. In practice, farmers often resort to dissolving solid fertilizers and applying filters in the fertilizer suction pipe. However, even small impurities are difficult to filter out completely, and over time, the high-frequency solenoid valves can easily become clogged. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a special water-fertilizer integrated fertilizer applicator for large fields.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Design a special water-fertilizer integrated fertilizer applicator for large fields, including a fertilizer applicator shell:

[0007] It also includes an intelligent collection and control system and a water and fertilizer execution system, and the intelligent collection and control system and the water and fertilizer execution system are both located inside the fertilizer spreader housing;

[0008] An intelligent data collection and control system and an industrial control touch screen are installed on the upper part of the fertilizer spreader housing. The water and fertilizer execution system is installed on the lower part of the fertilizer spreader housing. The opening on the upper left side of the fertilizer spreader housing is the fertilizer outlet of the fertilizer spreader, and the opening on the lower end is the sewage outlet. The three openings on the bottom rear side of the fertilizer spreader housing are fertilizer suction channel openings.

[0009] Preferably, the three fertilizer suction ports of the fertilizer spreader are connected to the three fertilizer barrels through pipes respectively, and the fertilizer discharge port is connected to the main network of the irrigation system through a pipe.

[0010] Preferably, the water and fertilizer execution system includes a fertilizer suction pipe, on which are arranged in sequence a fertilizer suction port, a pre-mesh filter, a check valve, a flow meter, a diaphragm valve, an electric ball valve, a fertilizer pump, a hand-cranked brush filter, an intake and exhaust valve, a pressure transmitter, a soil EC sensor, and a soil pH sensor.

[0011] Preferably, the fertilizer suction port, pre-screen filter and check valve are arranged at the front end of the fertilizer suction pipe, the fertilizer pump is connected to the fertilizer outlet pipe, and the pressure transmitter, soil EC sensor and soil PH sensor are respectively threadedly connected to the fertilizer outlet pipe.

[0012] Preferably, the intelligent acquisition and control system includes a 4G intelligent acquisition and control module, a power supply module and a human-computer interaction industrial control screen.

[0013] Preferably, the core component of the 4G intelligent data acquisition and control module is a 4G data acquisition and control module. Its output point is a passive dry contact, which connects the load and power supply in series with the control loop to achieve remote control. The data acquisition port is an RS485 communication interface that supports the Modbus RTU protocol. Field data is collected through a wired connection. The module publishes the collected data to the cloud via 4G. After analysis and processing by the server, the control information is sent to the data acquisition and control system, which drives the hardware operation.

[0014] The present invention proposes a special integrated water and fertilizer spreader for fields, which has the beneficial effect of improving the fertilizer absorption rate. The core fertilizer absorption component of conventional fertilizer spreaders is a Venturi tube. Liquid flows through the throat of the Venturi tube to generate negative pressure, sucking fertilizer into the main pipeline. The fertilizer absorption amount is much smaller than the water flow of the main channel. The maximum fertilizer application rate of a single channel is about 600-1000L / h. The present invention eliminates the Venturi tube and directly connects the fertilizer channel to the fertilizer barrel. The negative pressure generated by the fertilizer pump is used to absorb fertilizer. The fertilizer absorption pipeline is much larger than the fertilizer absorption channel of the Venturi tube. The maximum fertilizer application rate of a single channel can reach 2500-3000L / h, which greatly improves the fertilizer application rate.

[0015] In the present invention, the high-frequency solenoid valve in the conventional fertilizer spreader is replaced with an electric ball valve, and the flow regulation is achieved through a diaphragm valve. The solenoid valve is mainly opened and closed by adjusting the pressure difference between the upper and lower cavities of the diaphragm in the solenoid valve by starting and stopping the valve head. If impurities enter the solenoid valve, it is easy to make it difficult for the diaphragm to be fully opened and closed, and then cause the solenoid valve to be uncontrollable. The electric ball valve mainly adjusts the opening and closing of the valve by rotating the valve core driven by a motor. When fully opened, its water-passing cross-sectional area is the same as the water-passing cross-sectional area of the pipeline, and the water flow pattern is the same as the water flow pattern in the pipeline. It is not easy to form impurity accumulation, it is less affected by impurities, not easy to be blocked, and the system stability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a special water-fertilizer integrated fertilizer applicator for large fields proposed by the present invention.

[0017] Figure 2 This is a structural schematic diagram of the water and fertilizer execution system of a water and fertilizer integrated fertilizer spreader specially designed for large fields proposed by the present invention.

[0018] Figure 3 This is the layout diagram of the irrigation system of a water-fertilizer integrated fertilizer applicator specially designed for large fields proposed by the present invention.

[0019] In the figure: fertilizer suction port 1, pre-screen filter 2, check valve 3, flow meter 4, diaphragm valve 5, electric ball valve 6, fertilizer pump 7, hand-cranked brush filter 8, inlet and exhaust valve 9, pressure transmitter 10, soil EC sensor 11, soil pH sensor 12. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-3 , a water-fertilizer integrated fertilizer applicator for fields, comprising a fertilizer applicator shell:

[0022] It also includes an intelligent collection and control system and a water and fertilizer execution system, and the intelligent collection and control system and the water and fertilizer execution system are both located inside the fertilizer spreader housing;

[0023] An intelligent collection and control system and an industrial control touch screen are installed on the upper part of the fertilizer spreader shell. The intelligent collection and control system includes a 4G intelligent collection and control module, a power module and a human-computer interaction industrial control screen.

[0024] The core component of the 4G intelligent data acquisition and control module is the 4G data acquisition and control module. Its output point is a passive dry contact, which connects the load and power supply in series with the control loop for remote control. The data acquisition port is an RS485 communication interface that supports the Modbus RTU protocol. Field data is collected via a wired connection. The module publishes the collected data to the cloud via 4G. After analysis and organization by the server, the control information is sent to the data acquisition and control system, which drives the hardware operation.

[0025] The lower part of the fertilizer spreader housing is the water and fertilizer execution system, which includes a fertilizer suction pipe, on which are arranged in sequence a fertilizer suction port 1, a pre-screen filter 2, a check valve 3, a flow meter 4, a diaphragm valve 5, an electric ball valve 6, a fertilizer pump 7, a hand-cranked brush filter 8, an intake and exhaust valve 9, a pressure transmitter 10, a soil EC sensor 11, and a soil pH sensor 12.

[0026] The fertilizer suction port 1, the pre-screen filter 2 and the check valve 3 are arranged at the front end of the fertilizer suction pipe. The fertilizer pump 7 is connected to the fertilizer outlet pipe, and the pressure transmitter 10, the soil EC sensor 11 and the soil pH sensor 12 are respectively threadedly connected to the fertilizer outlet pipe.

[0027] The opening on the upper left side of the fertilizer spreader shell is the fertilizer outlet of the fertilizer spreader, the opening on the lower end is the sewage discharge hole, and the three openings on the bottom rear side of the fertilizer spreader shell are fertilizer suction channel openings. The three fertilizer suction ports of the fertilizer spreader are respectively connected to the three fertilizer barrels through pipes, and the fertilizer outlet is connected to the main network of the irrigation system through a pipe.

[0028] The working principle of the device is:

[0029] In actual use, the fertilizer spreader's three fertilizer intake ports are connected to three fertilizer tanks via pipes, and the fertilizer outlet is connected to the main irrigation network via pipes. During fertilization, the fertilizer pump 7 operates, creating a negative pressure in the suction pipe section at the front of the pump. The fertilizer liquid is collected through the suction channel. A pre-filter 2 performs coarse filtration to remove large impurities. A check valve 3 prevents different types of fertilizer liquid from flowing back into the fertilizer tank and contaminating the original liquid. A flow meter 4 collects the fertilizer flow rate and total amount in each channel and sends it to a server to determine the fertilizer application rate for each channel. The diaphragm valve 5 primarily regulates the fertilizer application rate for each channel. A controller adjusts the opening and closing times of the channel's electric ball valve 6, combined with flow meter data, to effectively control the fertilizer application ratio between different channels. The electric ball valve's wide opening provides excellent anti-clogging properties, ensuring that even incomplete fertilizer dissolution does not affect use. The mixed fertilizer, pressurized by the fertilizer pump, flows into a manual brush filter 8 for deep filtration, preventing impurities from entering the irrigation network and potentially clogging the emitters. Hand-cranked brush filters are easy to clean, low-cost, and offer high filtration accuracy. They are suitable for handling incompletely dissolved solid fertilizers. Three tees and threaded connectors are installed on the fertilizer outlet pipe, each equipped with a pressure transmitter 10, an EC sensor 11, and a pH sensor 12. This allows monitoring of fertilizer concentration and the safe operation of the pipe network system.

[0030] The integrated water-fertilizer system includes a main pressure pump, a filtration system, a fertilization system, and supporting pipe networks. After the fertilizer outlet is connected to the filtration system, the fertilizer liquid, along with the filtered water, flows into the field irrigation network. Through the irrigation network and emitters, the water-fertilizer mixture is applied to the fields. Depending on the crop type and planting pattern, appropriate field data collection sensors, such as soil temperature and humidity sensors, soil EC sensors, and soil pH sensors, can be deployed. This collected data can be used to determine whether the fertilizer mix is suitable for crop growth.

[0031] Intelligent Data Acquisition and Control System: The core component of the intelligent data acquisition and control system is the 4G data acquisition and control module. Its output is a passive dry contact, connecting the load and power supply to the control loop for remote control. The data acquisition port is an RS485 communication interface supporting the Modbus RTU protocol. Field data is collected via a wired connection. The module publishes the collected data to the cloud via 4G. After analysis and organization by the server, control information is transmitted to the data acquisition and control system, which drives the hardware operation.

[0032] In addition to conventional time control, the system supports data-adjusted control. It can control the opening and closing of fertilizer pump 7 based on pressure data. If the pressure detection data exceeds the maximum pressure limit of the pipeline or the pressure is abnormally low for a certain period of time, the system will automatically shut down fertilizer pump 7 to prevent damage to it. It can also determine whether the fertilizer suction channel is abnormal based on channel flow data. If the flow rate is lower than the normal value, the corresponding fertilizer channel will be automatically shut down to ensure the normal operation of other channels.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A water-fertilizer integrated fertilizer applicator for fields, comprising a fertilizer applicator housing, characterized in that: It also includes an intelligent collection and control system and a water and fertilizer execution system, and the intelligent collection and control system and the water and fertilizer execution system are both located inside the fertilizer spreader housing; An intelligent data collection and control system and an industrial control touch screen are installed on the upper part of the fertilizer spreader housing. The water and fertilizer execution system is installed on the lower part of the fertilizer spreader housing. The opening on the upper left side of the fertilizer spreader housing is the fertilizer outlet of the fertilizer spreader, and the opening on the lower end is the sewage outlet. The three openings on the bottom rear side of the fertilizer spreader housing are fertilizer suction channel openings.

2. The water-fertilizer integrated fertilizing machine for fields according to claim 1, characterized in that: The three fertilizer suction ports of the fertilizer spreader are respectively connected to the three fertilizer barrels through pipelines, and the fertilizer discharge port is connected to the main network of the irrigation system through pipelines.

3. The water-fertilizer integrated fertilizing machine for fields according to claim 1, characterized in that: The water and fertilizer execution system comprises a fertilizer suction pipe, on which a fertilizer suction port (1), a pre-screen filter (2), a check valve (3), a flow meter (4), a diaphragm valve (5), an electric ball valve (6), a fertilizer pump (7), a hand-cranked brush filter (8), an air inlet and outlet valve (9), a pressure transmitter (10), a soil EC sensor (11), and a soil pH sensor (12) are sequentially arranged.

4. The water-fertilizer integrated fertilizing machine for fields according to claim 3, characterized in that: The fertilizer suction port (1), the pre-screen filter (2) and the check valve (3) are arranged at the front end of the fertilizer suction pipe. The fertilizer pump (7) is connected to a fertilizer outlet pipe, and a pressure transmitter (10), a soil EC sensor (11) and a soil pH sensor (12) are respectively threadedly connected to the fertilizer outlet pipe.

5. The water-fertilizer integrated fertilizing machine for fields according to claim 1, characterized in that: The intelligent acquisition and control system includes a 4G intelligent acquisition and control module, a power supply module and a human-computer interaction industrial control screen.

6. The water-fertilizer integrated fertilizing machine for fields according to claim 5, characterized in that: The core component of the 4G intelligent data acquisition and control module is a 4G data acquisition and control module. Its output point is a passive dry contact, which connects the load and power supply to the control loop for remote control. The data acquisition port is an RS485 communication interface that supports the Modbus RTU protocol. Field data is collected through a wired connection. The module publishes the collected data to the cloud via 4G. After analysis and compilation by the server, the control information is sent to the data acquisition and control system, which drives the hardware operation.

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