CN209643351U - A kind of water-fertilizer integral solid fertilizer continuous fertilization device - Google Patents

Abstract

The utility model relates to a continuous fertilization device for solid fertilizer integrated with water and fertilizer, which comprises a fertilizer adding device, a mother liquid tank, an irrigation water pipe, a fertilization pipe, a water inlet pipe, a bracket and a control system. The pipe is connected to the top of the mother liquid tank, the fertilizer adding pipe is connected to the top of the mother liquid tank through several fertilizer branch pipes, the water inlet pipe is connected to several nozzles arranged on the top of the mother liquid tank, and the fertilization pipe Fertilization pumps, fertilization solenoid valves and fertilization flowmeters are sequentially arranged on the top, and the fertilization branch pipes are uniformly connected with the irrigation water pipes. The solid fertilizer continuous fertilization device of the utility model has a fast dissolving and mixing speed of the solid fertilizer, and the fertilization liquid and the irrigation water are mixed evenly and at a fast speed. Quickly, it can effectively improve the accuracy of fertilization and irrigation.

Description

A water and fertilizer integrated solid fertilizer continuous fertilization device

technical field

The utility model relates to a water and fertilizer integrated solid fertilizer continuous fertilization device, which belongs to the field of agricultural irrigation and fertilization machinery.

Background technique

The water and fertilizer integration technology is to provide the water and fertilizer solution from the pipeline to the crops in a regular, quantitative, and proportionate manner to achieve the effects of water saving, fertilizer saving, labor saving, high yield, and income increase. It is widely used in various fields of agricultural production. The key factors in the water and fertilizer integrated irrigation technology are: the precise configuration device of mother liquid and the rapid mixing device of fertilization liquid. In the water and fertilizer integrated irrigation technology, automatic control is mainly realized by controlling the EC value of the mother liquid tank and irrigation water pipes, and then precise fertilization is realized. The EC value of the mother liquid tank is mainly affected by the time of dissolving and mixing the solid fertilizer. Solid fertilizers are generally difficult and easy to mix with water, which will cause slow mixing of the mother liquor in the mother liquor tank, resulting in a long control lag time, which is not conducive to precise fertilization. Patent in water and fertilizer integrated irrigation technology CN2016105375614, utility model name: a solid fertilizer precision variable fertilizer distribution device and control method applicable to water and fertilizer integration, by setting three identical fertilizer discharge mechanisms, the fertilizer is dispersed into the mother liquid tank, thereby improving The speed of the solid fertilizer solution is reduced, and the mixing time is reduced. However, the mixing time of solid fertilizer is still relatively long and needs to be further reduced. The EC value of irrigation water pipes is mainly affected by the mixing time of fertilization solution and irrigation water. However, the uniform mixing of fertilization liquid and irrigation water is generally achieved by venturi tubes, but the effect of precise control of the EC value of irrigation water pipes is not very good by using venturi tubes alone. Moreover, the current irrigation and fertigation generally realizes the detection of irrigation concentration by monitoring the fertilizer concentration of the mother liquid tank, which belongs to indirect monitoring, and the data has a problem of large error. Therefore, it is of great significance to develop a device that can more accurately control the EC value control in the fertilization process, and then realize precise fertilization.

Utility model content

The utility model provides a continuous fertilization device with integrated water and fertilizer solid fertilizer, which solves the problems of slow fertilizer mixing speed and inaccurate control in the existing integrated water and fertilizer fertilization process, resulting in low fertilization precision.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A water and fertilizer integrated solid fertilizer continuous fertilization device, including fertilizer adding device, mother liquor tank, irrigation water pipe, fertilization pipe, water inlet pipe, bracket and control system, the fertilizer adding device, mother liquor tank, fertilization pipe and water inlet pipe are installed on On the bracket, the fertilizer outlet of the fertilizer adding device is connected to the fertilizer adding pipe, and the fertilizer adding pipe is connected to the top of the mother liquid tank through several fertilizer branch pipes, and the fertilizer branch pipes are evenly arranged on the top of the mother liquid tank; The mother liquor tank is provided with a stirring shaft, the stirring shaft is provided with several sets of stirring blades, the stirring shaft and the stirring motor are installed together, and the bottom of the mother liquor tank is provided with a mother liquor EC sensor and a mother liquor pH Sensor; one end of the water inlet pipe communicates with the irrigation water pipe, the other end of the water inlet pipe communicates with several nozzles arranged on the top of the mother liquid tank, and the water inlet pipe is sequentially provided with a water inlet pump, water inlet Electromagnetic valve and water inlet flowmeter, the nozzles are evenly distributed on the periphery of the fertilizer branch pipe inlet; one end of the fertilization pipe is arranged at the bottom of the mother liquor tank, and the other end of the fertilization pipe passes through several fertilization branch pipes and The irrigation water pipe is connected, and the fertilization pipe is provided with a fertilization pump, a fertilization solenoid valve and a fertilization flowmeter in sequence, and the fertilization branch pipe is evenly connected with the irrigation water pipe; the irrigation water pipe is sequentially provided with several a baffle, a venturi, a fertilization EC sensor, and a fertilization pH sensor;

The stirring motor, the mother liquor EC sensor, the mother liquor pH sensor, the water inlet pump, the water inlet solenoid valve, the water inlet flowmeter, the fertilization pump, the fertilization solenoid valve, the fertilization flowmeter, the fertilization EC sensor and the fertilization pH sensor are respectively connected with the control system. connect.

Further, a preferred solution of the present utility model is as follows: there are four fertilizer branch pipes, and there are four spray heads.

Further, a preferred solution of the present invention is: there are three baffles, and the baffles are arc-shaped baffles.

Further, a preferred solution of the utility model is: the fertilization branch pipe and the irrigation water pipe are arranged at an angle of 45-60 degrees.

Furthermore, a preferred solution of the present utility model is: the spray head is inclined at 10-20 degrees to the center of the mother liquor tank.

Further, a preferred solution of the present utility model is: the bottom of the mother liquid tank is provided with a liquid level sensor, and the liquid level sensor is sequentially provided with a first liquid level control point and a second liquid level control point from top to bottom. point and the third liquid level control point, the liquid level sensor is connected with the control system.

Further, a preferred solution of the utility model is: the fertilizer adding device includes a feed hopper and a screw feeder, the screw feeder is provided with a feed motor, and the feed motor and the control system connected.

Further, a preferred solution of the present invention is: the fertilizer adding device further includes a weighing sensor, and the weighing sensor is connected to the control system.

Further, a preferred solution of the present utility model is: the fertilizer adding device is provided with an iron remover, the outside of the stirring blade is provided with a filter, and the inlet end of the fertilization pump is provided with a filter.

Further, a preferred solution of the present utility model is: the control system includes a power supply, a WiFi module, a user terminal device, a fertilization controller and an input and output interface; the power supply is a 12-volt or 24-volt DC power supply; The user terminal device is an electronic device with a wireless network card such as a smart phone or a tablet computer, which realizes the control of the precise variable fertilization of solid fertilizer; the WiFi module communicates with the fertilization control through the input and output interface device is connected; the described fertilization controller adopts Atmega128 microcontroller, and the input and output interface includes photoelectric isolation, signal amplification and digital IO drive circuit; the stirring motor, mother liquor EC sensor, mother liquor pH sensor, water inlet pump, The water inlet solenoid valve, water inlet flowmeter, fertilization pump, fertilization solenoid valve, fertilization flowmeter, fertilization EC sensor and fertilization pH sensor are respectively connected to the fertilization controller through the input and output interfaces.

The beneficial effects of the utility model:

The utility model adopts three ways of organic combination in the aspect of fertilizing mother liquid mixing: (1) adopt porous evenly to add fertilizer, make fertilizer more dispersedly join in the mother liquid tank, be helpful for accelerating the speed of solid fertilizer dissolving and mixing; (2) again On the basis of this method, the inclined nozzle is used to enter the water, and the fertilizer added to the mother liquid tank is sprayed, dissolved and mixed, which effectively improves the dissolution rate of the solid fertilizer; Compared with the method of porous uniform fertilizer addition + stirring blade stirring, the dissolution rate of solid fertilizer is increased by 100-200%.

The utility model adopts the combination of three methods in the aspect of fertilizing liquid mixing: (1) adopts the method of uniform fertilization by several fertilizing branch pipes, which can effectively improve the uniform mixing speed of fertilizing liquid; (2) adopts the method of setting baffle plates in the irrigation water pipes , increase the turbulent flow through the baffle, and improve the mixing speed of the fertilization solution; (3) using a Venturi tube, the irrigation water is sprayed and mixed again through the Venturi tube, which can effectively increase the mixing speed; through the above three mixing methods, it can be effectively Reduce the mixing time of fertilization solution and irrigation water, improve the accuracy of CE value determination, and then improve the accuracy of irrigation and fertilization.

The solid fertilizer continuous fertilization device of the utility model has a fast dissolving and mixing speed of the solid fertilizer, and the fertilization liquid and the irrigation water are mixed evenly and at a fast speed. Quickly, it can effectively improve the accuracy of fertilization and irrigation.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model.

In the attached picture:

Fig. 1 is the structural representation of a kind of fertilization device in the utility model embodiment;

Fig. 2 is the structural representation of fertilizer branch pipe and water inlet pipe in the utility model embodiment;

Fig. 3 is the structural representation of fertilization branch pipe and baffle plate in the utility model embodiment;

Fig. 4 is the structural representation of another kind of fertilization device in the utility model embodiment;

Fig. 5 is a structural block diagram of the control system in the embodiment of the utility model.

In the figure, 1 is the irrigation water pipe, 2 is the mother liquid EC sensor, 3 is the mother liquid pH sensor, 4 is the mother liquid tank, 5 is the stirring shaft, 6 is the stirring blade, 7 is the water inlet pump, 8 is the water inlet solenoid valve, 9 is the water inlet Water flowmeter, 10 is a nozzle, 11 is a fertilizer branch pipe, 12 is a stirring motor, 13 is a fertilizer adding pipe, 14 is a screw feeder, 15 is a feed hopper, 16 is a weighing sensor, and 17 is a feed motor, 18 is a water inlet pipe, 19 is a bracket, 20 is a liquid level sensor, 21 is an EC sensor for fertilization, 22 is a pH sensor for fertilization, 23 is a Venturi tube, 24 is a baffle, 25 is a branch pipe for fertilization, and 26 is a flow meter for fertilization. 27 is a fertilization solenoid valve, 28 is a fertilization pump, 29 is a fertilization pipe, 30 is an iron remover, 31 is a filter screen, and 32 is a filter.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Example 1

As shown in Figures 1-3 and 5, a water and fertilizer integrated solid fertilizer continuous fertilization device includes a fertilizer adding device, a mother liquor tank 4, an irrigation water pipe 1, a fertilization pipe 29, a water inlet pipe 18, a support 19 and a controller, the The fertilizer adding device, mother liquid tank 4, fertilizing pipe 29 and water inlet pipe 18 are installed on the support 19, and the fertilizer outlet of the fertilizer adding device is connected to the fertilizer adding pipe 13. The fertilizer adding pipe 13 passes through several fertilizer branch pipes 11 is connected to the top of the mother liquid tank 4, and the fertilizer branch pipe 11 is evenly arranged on the top of the mother liquid tank 4. By connecting the fertilizer branch pipe 11 to the mother liquid tank 4, the fertilizer can be divided into multiple parts and dispersed into the mother liquid tank 4, which is beneficial to increase the mixing speed of the fertilizer solution. The fertilizer adding pipe 13 communicates with the fertilizer branch pipe 11 through the inclined part, so that the fertilizer can slide freely into the mother liquor tank 4, and the use of one fertilizer adding pipe 13 can effectively reduce the cost. In this embodiment, the number of fertilizer branch pipes 11 is selected according to the size of the mother liquor tank 4, generally 3-6, and 4 are used in this implementation.

The mother liquid tank 4 is provided with a stirring shaft 5, and several sets of stirring blades 6 are arranged on the stirring shaft 5. In this embodiment, two sets of stirring blades 6 are used, and the stirring shaft 5 and the stirring motor 12 are installed together.

The bottom of the mother liquor tank 4 is provided with a mother liquor EC sensor 2 and a mother liquor pH sensor 3,

One end of the water inlet pipe 18 communicates with the irrigation water pipe 1, and the other end of the water inlet pipe 18 communicates with several nozzles 10 arranged on the top of the mother liquid tank 4, and the nozzles 10 are evenly distributed in the fertilizer branch pipe. 11 Periphery of the inlet end, the spray head 10 is inclined to the center of the mother liquid tank 4 at 10-20 degrees. In this embodiment, there are four nozzles 10, and the nozzles 10 are inclined at 15 degrees to the center of the mother liquid tank 4. The inclined nozzle 10 can effectively disperse the influent water flow, and fully mix the fertilizer with the high-speed sprayed water flow, which can effectively speed up the mixing and dissolving speed of the fertilizer.

On the water inlet pipe 18, a water inlet pump 7, a water inlet solenoid valve 8 and a water inlet flow meter 9 are sequentially arranged.

One end of fertilization pipe 29 is arranged on the bottom of mother liquid tank 4, and the other end of described fertilization pipe 29 communicates with described irrigation water pipe 1 through several fertilization branch pipes 25, and fertilization branch pipe 25 is evenly communicated with described irrigation water pipe 1, fertilization The branch pipe 25 and the irrigation water pipe 1 are arranged at an angle of 45-60 degrees. By adopting a plurality of fertilization branch pipes 25 at an angle of 45-60 degrees with the irrigation water pipe 1, the fertilization liquid can be inclined to enter the irrigation water pipe 1, which can effectively increase the mixing speed of the fertilization liquid and irrigation water and improve the mixing effect.

A fertilization pump 28, a fertilization solenoid valve 27 and a fertilization flowmeter 26 are sequentially arranged on the fertilization pipe 29;

Several baffles 24, a Venturi tube 23, a fertilization EC sensor 21 and a fertilization pH sensor 22 are sequentially arranged on the irrigation water pipe 1, and there are three baffles 24, and the baffles 24 are arc-shaped baffles .

A liquid level sensor 20 is arranged on the mother liquor tank 4, and the liquid level sensor 20 is provided with a first liquid level control point, a second liquid level control point and a third liquid level control point in sequence from top to bottom. The fertilizer adding device includes a feed hopper 15 and a screw feeder 14, the screw feeder 14 is provided with a feed motor 17, and the feed motor 17 is connected with the control system.

The fertilizer adding device also includes a load cell 16, and the load cell 16 is arranged below the screw feeder 14 to monitor changes in fertilizer.

The control system includes a power supply, a WiFi module, a user terminal device, a fertilization controller and an input/output interface; the power supply is selected from a 12-volt or 24-volt DC power supply; the user terminal device is equipped with a wireless network card Electronic devices such as smart phones or tablet computers realize the control of precise variable fertilization of solid fertilizers; the WiFi module is connected to the fertilization controller through the input and output interfaces; the fertilization controller adopts Atmega128 single-chip microcomputer, described input and output interface comprises photoelectric isolation, signal amplification and digital IO drive circuit; Described stirring motor 12, mother liquor EC sensor 2, mother liquor pH sensor 3, water inlet pump 7, water inlet solenoid valve 8, water inlet Flow meter 9, fertilization pump 28, fertilization solenoid valve 27, fertilization flow meter 26, fertilization EC sensor 21, fertilization pH sensor 22, liquid level sensor 20, feed motor 17 and weighing sensor 16 are respectively connected with the input and output interface through the Connects to a fertilizer controller.

The APP application program installed on the user terminal equipment outputs to the WiFi module through the wireless signal, and the fertilization controller reads the control signal of the WiFi module, and the fertilization controller outputs the control signal to control the on-off state of the relay, and then controls the stirring motor 12 and feed motor 17 to realize fertilizer addition and stirring operation; when the inlet and outlet flow rate, EC value, pH value and liquid level value change, the flow sensor, EC sensor, pH sensor and liquid level sensor 20 will feed back the signal to the distribution The fertilization controller is equipped with the fertilization controller to read and process the signal, and the fertilization controller is equipped with the output control signal to control the on-off state of the relay and the speed of the water inlet pump 7, and then control the rotation of the agitation to achieve fertilizer addition and adjust the water injection volume, so that The concentration, EC and pH of the mother liquor were kept in a constant range.

The operation process of the fertilization device of the present embodiment:

1) The operator installs the APP application program of the fertilizer distribution controller in the mobile phone. When fertilizer distribution work is required, the operator opens the APP application program in the mobile phone, selects the water injection button displayed in the APP application program, and the wireless signal output by the mobile phone It is transmitted to the fertilization controller through the WiFi module, and the fertilization controller reads the signal from the mobile phone, and controls the water inlet pump 7 and the water inlet solenoid valve 8 to start injecting water into the mother liquid tank 4 through the interpretation of the wireless signal. , when the water level of the mother liquid tank 4 reaches the set value, the water injection is suspended;

(2) The operator selects the fertilization and stirring buttons displayed in the APP application program, and the wireless signal output by the mobile phone is transmitted to the fertilization controller through the WiFi module, and the fertilization controller reads the signal from the mobile phone, through The state of the relay is controlled by the interpretation of the wireless signal, and then the feeding motor 17 and the stirring motor 12 start to add fertilizer to the mother liquor tank 4, the stirring mechanism starts to work, and the fertilizer is fully mixed with water in the mother liquor tank 4 to form a mother liquor;

(3) When the mother liquid concentration, mother liquid EC value and mother liquid pH value reach the set value, the mother liquid EC sensor 2 and the mother liquid pH sensor 3 transmit the signal to the fertilization controller, and the fertilization controller controls the water inlet pump 7 through the input and output interface and fertilization pump 28, so that the two water pumps start to work, the flow value is sent to the fertilization controller through the flow sensor, and the fertilization controller controls the inlet and outlet flow, so as to discharge the mother liquor while continuing to inject water into the mother liquor tank 4, the injected water Mix again with the falling fertilizer to realize the continuity of the mother liquor configuration;

(4) When the concentration of the fertilization solution, the fertilization EC value and the fertilization pH value reach the set value, keep the import and export flow rate and the feeding motor unchanged, and the fertilization EC sensor 21 and the fertilization pH sensor 22 will measure the current value during the fertilization process. Provide a fertilization controller. The fertilization controller controls the speed of the fertilization pump 28 through the input and output interface. If the current value is higher than the set value, reduce the speed of the water inlet pump 7 and reduce the amount of fertilizer. If the current value is lower than the set value value, increase the rotating speed of the water inlet pump 7, increase the amount of fertilization, and control the concentration of fertilization, the EC value of fertilization and the pH value of fertilization by adjusting the amount of fertilization;

(5) During the fertilization process, due to changes in the amount of fertilization, the liquid level in the mother liquid tank 4 will change and the concentration will change. During the fertilization process, the liquid level sensor 20 will transmit the current value measured to the fertilization controller. The fertilization controller controls the speed of the water inlet pump 7 and the feed motor 17 through the input and output interfaces. When the amount of fertilization increases, the liquid level in the mother liquid tank 4 decreases, and the concentration of the mother liquid and the CE value of the mother liquid increase. When the liquid level in the mother liquid tank 4 Reach the second liquid level control point, increase the speed of the water inlet pump 7, increase the water intake to make the liquid level rise, when the concentration of the mother liquid, the EC value of the mother liquid and the pH value of the mother liquid reach the set value, and the liquid level does not reach the first liquid level Control point, restore the speed of the water inlet pump 7, if the liquid level rises to the first liquid level control point, but the concentration of the mother liquid, the EC value of the mother liquid and the pH value of the mother liquid exceed the set value, restore the speed of the water inlet pump 7, reduce the feed motor Speed, reduce the amount of fertilizer, when the mother liquid concentration, mother liquid EC value and mother liquid pH value reach the set value, restore the feed motor 17 speed;

When the amount of fertilization decreases, the liquid level in the mother liquid tank 4 increases, the concentration of the mother liquid and the CE value of the mother liquid decrease, and when the liquid level in the mother liquid tank 4 reaches the first liquid level control point, the speed of the water inlet pump 7 is reduced to reduce the water intake Make the liquid level drop. When the mother liquid concentration, mother liquid EC value and mother liquid pH value reach the set value, and the liquid level does not reach the second liquid level control point, restore the speed of the water inlet pump 7. If the liquid level drops to the second liquid level control point point, but when the concentration of mother liquor, the EC value of mother liquor and the pH value of mother liquor are lower than the set value, restore the speed of water inlet pump 7, increase the speed of feed motor, and increase the amount of fertilizer. When the concentration of mother liquor, EC value of mother liquor and pH of mother liquor When the value reaches the set value, the speed of feeding motor 17 is restored;

(6) When the data of the load cell 16 is not changing, stop the feed motor 17, stop the water inlet pump 7, delay for 10-15 seconds, stop the stirring motor 12, and when the liquid level value reaches the third liquid level control point of the liquid level , stop the fertilization pump 28, and fertilization ends. It is also possible to turn on the water adding pump, inject water into the mother liquor tank 4 to the upper control point of the liquid level, rinse the mother liquor barrel for 5-10 minutes, stop the fertilization pump 28 and the water addition pump, and the fertilization ends.

Example 2

As shown in FIG. 4 , the fertilizer adding device is provided with an iron remover 30 , a filter 31 is provided outside the stirring blade, and a filter 32 is provided at the inlet end of the fertilization pump 28 . The iron remover 30 generally adopts a magnet.

In this embodiment, by arranging the above-mentioned device, impurities in the fertilizer can be effectively removed, the blockage of the fertilization pipe 29 can be prevented, and the stability of fertilization can be effectively improved.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (10)

1. A water and fertilizer integrated solid fertilizer continuous fertilization device is characterized in that: it comprises a fertilizer adding device, a mother liquid tank, an irrigation water pipe, a fertilization pipe, a water inlet pipe, a support and a control system, and the described fertilizer adding device, a mother liquid tank, a fertilizing The pipe and the water inlet pipe are installed on the bracket, and the fertilizer outlet of the fertilizer adding device is connected to the fertilizer adding pipe. The fertilizer adding pipe is connected to the top of the mother liquid tank through several fertilizer branch pipes, and the fertilizer branch pipes are evenly arranged on the The top of the mother liquor tank; the mother liquor tank is provided with a stirring shaft, the stirring shaft is provided with several groups of stirring blades, the stirring shaft and the stirring motor are installed together, and the bottom of the mother liquor tank is provided with a mother liquor EC sensor and mother liquid pH sensor; one end of the water inlet pipe communicates with the irrigation water pipe, and the other end of the water inlet pipe communicates with several nozzles arranged on the top of the mother liquid tank, and the water inlet pipe is sequentially provided with Water inlet pump, water inlet solenoid valve and water inlet flow meter, the nozzles are evenly distributed on the periphery of the fertilizer branch pipe inlet; one end of the fertilization pipe is arranged at the bottom of the mother liquor tank, and the other end of the fertilization pipe passes through Several fertilization branch pipes communicate with the irrigation water pipes, and the fertilization pipes are sequentially provided with fertilization pumps, fertilization solenoid valves and fertilization flowmeters, and the fertilization branch pipes are uniformly connected with the irrigation water pipes; the irrigation water pipes Several baffles, Venturi tubes, fertilization EC sensors and fertilization pH sensors are sequentially arranged on the top; The stirring motor, the mother liquor EC sensor, the mother liquor pH sensor, the water inlet pump, the water inlet solenoid valve, the water inlet flowmeter, the fertilization pump, the fertilization solenoid valve, the fertilization flowmeter, the fertilization EC sensor and the fertilization pH sensor are respectively connected with the control system. connect. 2. A continuous fertilization device for solid fertilizer integrated with water and fertilizer according to claim 1, characterized in that: there are four fertilizer branch pipes, and there are four nozzles. 3. The continuous fertilization device for solid fertilizer integrated with water and fertilizer according to claim 1, characterized in that: there are three baffles, and the baffles are arc-shaped baffles. 4. The continuous fertilization device for solid fertilizer integrated with water and fertilizer according to claim 1, characterized in that: the fertilization branch pipe and the irrigation water pipe are arranged at an angle of 45-60 degrees. 5 . The continuous fertilization device for solid fertilizer integrated with water and fertilizer according to claim 1 , characterized in that: the nozzle is inclined at 10-20 degrees to the center of the mother liquid tank. 6 . 6. A continuous fertilization device for integrated water and fertilizer solid fertilizer according to claim 1, characterized in that: the bottom of the mother liquid tank is provided with a liquid level sensor, and the liquid level sensor is sequentially provided with The first liquid level control point, the second liquid level control point and the third liquid level control point, the liquid level sensor is connected with the control system. 7. A continuous fertilization device for integrated solid fertilizer with water and fertilizer according to claim 1, characterized in that: said fertilizer adding device comprises a feeding hopper and a screw feeder, and said screw feeder is provided with an inlet Material motor, described feed motor is connected with control system. 8 . The continuous fertilization device for solid fertilizer integrated with water and fertilizer according to claim 1 , characterized in that: the fertilizer adding device further comprises a weighing sensor, and the weighing sensor is connected with a control system. 9. A continuous fertilization device for integrated solid fertilizer with water and fertilizer according to claim 1, characterized in that: said fertilizer adding device is provided with an iron remover, the outside of said stirring blade is provided with a filter screen, said The inlet end of the fertilizer pump is provided with a filter. 10. A kind of water and fertilizer integrated solid fertilizer continuous fertilization device according to any one of claims 1-9, characterized in that: the control system includes a power supply, a WiFi module, user terminal equipment, a fertilization controller and Input and output interfaces; the power supply is 12 volts or 24 volts DC power supply; the user terminal equipment is an electronic device with a wireless network card, such as a smart phone or a tablet computer, to realize the control of the precise variable fertilization of solid fertilizers Described WiFi module is connected with fertilization controller by described input and output interface; Described fertilization controller adopts Atmega128 single-chip microcomputer, and described input and output interface comprises photoelectric isolation, signal amplification and digital IO driving circuit; The stirring motor, the mother liquor EC sensor, the mother liquor pH sensor, the water inlet pump, the water inlet solenoid valve, the water inlet flowmeter, the fertilization pump, the fertilization solenoid valve, the fertilization flowmeter, the fertilization EC sensor and the fertilization pH sensor are respectively connected with the The input and output interfaces are connected to the fertilization controller.