A preparation device and method for green intelligent suspended liquid fertilizer

Abstract

The present invention discloses a preparation device and a preparation method of a green intelligent suspended liquid fertilizer, comprising a servo motor, wherein the lower surface of the servo motor is fixedly connected to a support seat, the left end of the servo motor is rotatably connected to a transmission shaft, a support column is provided on the left side of the servo motor, a support platform is provided behind the servo motor, and a stirring and conveying mechanism is provided above the support platform, thereby realizing automatic multiple homogenization of materials through a high-pressure homogenization process, ensuring the homogenization effect while avoiding the filling of materials into the high-pressure homogenization mechanism, effectively reducing energy consumption, and realizing an efficient homogenization process by providing a high-pressure plunger mechanism at the left end of the transmission shaft, realizing feeding and discharging by changing the pressure during the homogenization process, and solving the problem of difficult feeding and discharging in high-pressure devices.

Description

Technical Field

[0001] The present invention belongs to the technical field related to liquid fertilizers, and in particular relates to a preparation device and a preparation method of green intelligent suspended liquid fertilizer. Background Art

[0002] Liquid fertilizers include clear liquid, suspension, and paste types. As a new type of fertilizer, they offer the following advantages: ① Easy absorption and rapid effectiveness; ② Low insoluble matter content, allowing for even distribution in the soil after application and preventing seedling burn; ③ Can be used for spray, drip, or watering, offering convenient, cost-effective, and effective application; ④ Can be mixed evenly with insecticides, fungicides, and herbicides; ⑤ The product avoids moisture absorption and caking; ⑦ Production, application, and transportation are dust-free, smoke-free, and waste-free. Suspension fertilizer, a highly concentrated liquid fertilizer, is a later generation of liquid fertilizer. While clear liquid fertilizer offers many of the advantages of liquid fertilizer, it also suffers from a lower nutrient content. This low nutrient content limits its transportation distance. To address this issue and extend its transportation distance, suspension liquid fertilizers were developed. Suspension liquid fertilizers are highly concentrated liquid fertilizers with significantly higher nutrient content than clear liquid fertilizers. The total nutrient content can reach 35-45%, or even higher, which is similar to the nutrient content of general granular compound fertilizers. This greatly reduces the transportation cost of liquid fertilizers with the same amount of nutrients, making long-distance transportation of liquid fertilizers possible. The development of suspended fertilizers has greatly promoted the development of the liquid fertilizer industry.

[0003] The processing of suspended fertilizers requires a homogenizing valve. The material achieves an extremely high flow rate under high pressure, creating a significant pressure drop within the valve. Cavitation, turbulence, and shear transform the originally coarse emulsion or suspension into a finely dispersed, uniform, and stable liquid-liquid emulsion or liquid-solid dispersion. However, a single homogenization process does not produce satisfactory results. Furthermore, during processing, suspended fertilizers are prone to stratification, which is detrimental to the formation of a finely dispersed, uniform, and stable suspended fertilizer. Summary of the Invention

[0004] The object of the present invention is to provide a green and intelligent suspended liquid fertilizer preparation device and preparation method thereof, by providing a mixing and conveying mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A green and intelligent suspended liquid fertilizer preparation device, comprising a servo motor, a support seat fixedly connected to the lower surface of the servo motor, a transmission shaft rotatably connected to the left end of the servo motor, a support column provided on the left side of the servo motor, a support platform provided behind the servo motor, a stirring and conveying mechanism provided above the support platform, and two stirring and conveying mechanisms are provided in total, the stirring and conveying mechanism comprising an upper connecting pipe, a sealing cover fixedly connected to the upper end of the upper connecting pipe, a high-pressure homogenizing mechanism provided at the lower end of the upper connecting pipe, the high-pressure homogenizing mechanism being located on the right side of the device, a conveying pipe fixedly connected to the middle of the upper connecting pipe, a lower connecting pipe fixedly connected to the other end of the conveying pipe, a sealing cover fixedly connected to the bottom end of the lower connecting pipe, another high-pressure homogenizing mechanism provided at the upper end of the lower connecting pipe, the high-pressure homogenizing mechanism being located on the left side of the device, and a high-pressure plunger mechanism provided at the left end of the transmission shaft.

[0006] Preferably, a limiting plate is fixedly connected to the middle of the conveying pipe, a connecting block is fixedly connected to the inside of the limiting plate, a turbine blade is fixedly connected to the upper surface of the connecting block, a driven shaft is fixedly connected to the lower surface of the connecting block, a spiral stirring blade is fixedly connected to the outer ring of the driven shaft, and the turbine blade and the driven shaft are rotatably connected to the limiting plate.

[0007] Preferably, the high-pressure homogenization mechanism includes a shell, the top end of the shell is fixedly connected to an upper connecting frame, the lower end of the upper connecting frame is fixedly connected to an upper spring, the lower end of the upper spring is fixedly connected to an upper O-type ball valve, the lower end of the upper O-type ball valve is fixedly connected to an upper sealing ring, the upper sealing ring is fixedly connected to the shell, the lower end of the upper sealing ring is fixedly connected to a lower connecting frame, the lower end of the lower connecting frame is fixedly connected to a lower spring, the lower end of the lower spring is fixedly connected to a lower O-type ball valve, the lower end of the lower O-type ball valve is provided with a lower sealing ring, and the lower sealing ring is fixedly connected to the shell.

[0008] Preferably, the diameter of the upper O-type ball valve is larger than the diameter of the upper end of the upper sealing ring, the diameter of the lower O-type ball valve is larger than the diameter of the upper end of the lower sealing ring, the top end of the upper connecting frame is fixedly connected to the upper connecting pipe, and the bottom end of the shell is fixedly connected to the lower connecting pipe.

[0009] Preferably, the high-pressure plunger mechanism includes a connecting shaft, the left end of the connecting shaft is fixedly connected to a first cam, the right end of the connecting shaft is fixedly connected to a second cam, the first cam and the second cam are respectively rotatably connected to two connecting rods, the upper end of the connecting rod is rotatably connected to a piston, and the piston is slidably connected to a cylinder.

[0010] Preferably, the right end of the connecting shaft is fixedly connected to the transmission shaft, the first cam and the second cam are always vertically distributed, the rear end of the cylinder is connected to the housing, and the connecting part is located at the position of the lower O-type ball valve.

[0011] Preferably, the present invention also provides a method for preparing a device for preparing green intelligent suspended liquid fertilizer, the steps of which are as follows:

[0012] S1: Start the servo motor power supply to drive the high-pressure plunger mechanism to start working;

[0013] S2: When the piston is in the depressurized state, the lower O-type ball valve opens to allow the material conveyed by the lower connecting pipe to enter the cavity formed by the housing at the lower O-type ball valve;

[0014] S3: When the piston is in the pressurized state, the piston squeezes the housing at the lower O-type ball valve to form a cavity for the material to be homogenized;

[0015] S4: the upper O-type ball valve opens under the action of the piston pressurization, allowing the homogenized material to enter the cavity formed by the housing at the upper O-type ball valve;

[0016] S5: The material in the cavity formed by the housing at the upper O-type ball valve enters the upper connecting pipe under the pressurizing action of the piston;

[0017] S6: The material in the upper connecting tube passes through the turbine blade under the action of the piston and drives it to rotate. The material is fully mixed under the rotation of the spiral stirring blade driven by the turbine blade, and enters the cavity formed at the bottom of the shell through the lower connecting tube to wait for re-homogenization.

[0018] Preferably, the green intelligent suspended liquid fertilizer includes urea ammonium nitrate solution: 10-15 parts, urea: 15-20 parts, potassium sulfate: 20-30 parts; potassium dihydrogen phosphate: 10-20 parts, monoammonium phosphate: 10-20 parts, manganese nitrate: 2-5 parts, calcium nitrate: 2-5 parts, magnesium nitrate: 2-5 parts, modified polyaspartic acid calcium salt: 10-15 parts, and amino acid solution: 20-30 parts.

[0019] Preferably, the mass fraction of total nitrogen (N) in the urea ammonium nitrate solution is ≥28.0%, the mass fraction of amide nitrogen (N) is ≥14.0%, the mass fraction of potassium dihydrogen phosphate (KH2PO4) in potassium dihydrogen phosphate is ≥99.0%, the mass fraction of water-insoluble matter is ≤0.1%, the mass fraction of total nitrogen (N) in monoammonium phosphate is ≥11.0%, the mass fraction of available phosphorus (P2O5) is ≥51.0%, the mass fraction of water-insoluble matter in manganese nitrate is ≤0.04%, the mass fraction of water-insoluble matter in calcium nitrate is ≤0.1%, the mass fraction of water-insoluble matter in magnesium nitrate is ≤0.01%, the molecular weight range of the modified polyaspartic acid calcium salt is 8000-10000, and the solid content is ≥45%.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention realizes automatic multiple homogenization of materials through the high-pressure homogenization process by setting a stirring and conveying mechanism, ensuring the homogenization effect while avoiding filling the high-pressure homogenization mechanism with materials, effectively reducing energy consumption.

[0022] 2. The present invention realizes an efficient homogenization process by setting a high-pressure homogenization mechanism and a high-pressure plunger mechanism, realizes feeding and discharging by the change of pressure during the homogenization process, and solves the problem of difficult feeding and discharging in high-pressure devices.

[0023] 3. The present invention realizes the use of material flow as power for mixing by providing turbine blades and spiral stirring blades, thereby avoiding the stratification of materials during the processing process, which would lead to reduced product efficacy. At the same time, there is no need to set up a separate high-power power source, thereby reducing the cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a front view of the overall structure of the present invention;

[0026] Figure 3 This is a cross-sectional view of the overall structure of the high-pressure plunger mechanism of the present invention;

[0027] Figure 4 This is a structural cross-sectional view of the high-pressure homogenization mechanism of the present invention in a feeding state;

[0028] Figure 5 This is a structural cross-sectional view of the high-pressure homogenization mechanism of the present invention in a discharging state;

[0029] Figure 6 It is a structural cross-sectional view of the stirring and conveying mechanism of the present invention;

[0030] Figure 7Schematic diagram of the structure of the mixing and conveying mechanism of the present invention;

[0031] In the figure: 1. servo motor; 2. support seat; 3. transmission shaft; 4. support column; 5. support platform; 6. sealing cover; 100. high-pressure plunger mechanism; 101. connecting shaft; 102. first cam; 103. second cam; 104. connecting rod; 105. piston; 106. cylinder; 200. high-pressure homogenizing mechanism; 201. housing; 202. upper connecting frame; 203. upper spring; 204. upper O-type ball valve; 205. upper sealing ring; 206. lower connecting frame; 207. lower spring; 208. lower O-type ball valve; 209. lower sealing ring; 300. mixing and conveying mechanism; 301. upper connecting pipe; 302. conveying pipe; 303. lower connecting pipe; 304. turbine blade; 305. connecting block; 306. driven shaft; 307. limit plate; 308. spiral stirring blade. DETAILED DESCRIPTION

[0032] 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 a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0033] The existing suspension fertilizer preparation device is unable to homogenize the material multiple times, resulting in poor product effect. The effective ingredients in the fertilizer cannot be evenly and stably dispersed everywhere. At the same time, during the homogenization process, the existing preparation device cannot solve the stratification problem of the suspension fertilizer, which is not conducive to improving the final efficacy of the product.

[0034] See also Figures 1 to 7The present invention provides a technical solution: a green intelligent suspended liquid fertilizer preparation device, comprising a servo motor 1, a support seat 2 is fixedly connected to the lower surface of the servo motor 1, a transmission shaft 3 is rotatably connected to the left end of the servo motor 1, a support column 4 is provided on the left side of the servo motor 1, a support platform 5 is provided behind the servo motor 1, and a stirring and conveying mechanism 300 is provided above the support platform 5. There are two stirring and conveying mechanisms 300 in total, and the stirring and conveying mechanisms 300 include an upper connecting pipe 301, an upper end of the upper connecting pipe 301 is fixedly connected to a sealing cover 6, and a lower end of the upper connecting pipe 301 is provided with a high-pressure homogenizing mechanism 200. The high-pressure homogenizing mechanism 200 is located on the right side of the device, a delivery pipe 302 is fixedly connected to the middle part of the upper connecting pipe 301, and the other end of the delivery pipe 302 is fixedly connected to a lower connecting pipe 303, and the bottom end of the lower connecting pipe 303 is fixedly connected to a sealing cover 6. Another high-pressure homogenizing mechanism 200 is provided on the upper end of the lower connecting pipe 303, and the high-pressure homogenizing mechanism 200 is located on the left side of the device. The left end of the transmission shaft 3 is provided with a high-pressure plunger mechanism 100.

[0035] In order to achieve multiple homogenization, a limiting plate 307 is fixedly connected to the middle of the conveying pipe 302, a connecting block 305 is fixedly connected to the inside of the limiting plate 307, a turbine blade 304 is fixedly connected to the upper surface of the connecting block 305, a driven shaft 306 is fixedly connected to the lower surface of the connecting block 305, a spiral stirring blade 308 is fixedly connected to the outer ring of the driven shaft 306, and the turbine blade 304 and the driven shaft 306 are rotatably connected to the limiting plate 307.

[0036] In order to avoid adding a high-power feeding and discharging power source, the high-pressure homogenization mechanism 200 includes a shell 201, and the top end of the shell 201 is fixedly connected to an upper connecting frame 202, the lower end of the upper connecting frame 202 is fixedly connected to an upper spring 203, the lower end of the upper spring 203 is fixedly connected to an upper O-type ball valve 204, the lower end of the upper O-type ball valve 204 is provided with an upper sealing ring 205, the upper sealing ring 205 is fixedly connected to the shell 201, the lower end of the upper sealing ring 205 is fixedly connected to the lower connecting frame 206, the lower end of the lower connecting frame 206 is fixedly connected to the lower spring 207, the lower end of the lower spring 207 is fixedly connected to the lower O-type ball valve 208, the lower end of the lower O-type ball valve 208 is provided with a lower sealing ring 209, and the lower sealing ring 209 is fixedly connected to the shell 201. The diameter of the upper O-type ball valve 204 is larger than the upper end diameter of the upper sealing ring 205, the diameter of the lower O-type ball valve 208 is larger than the upper end diameter of the lower sealing ring 209, the top end of the upper connecting frame 202 is fixedly connected to the upper connecting pipe 301, and the bottom end of the shell 201 is fixedly connected to the lower connecting pipe 303.

[0037] In order to achieve an efficient homogenization process, the high-pressure plunger mechanism 100 includes a connecting shaft 101, the left end of which is fixedly connected to a first cam 102, and the right end of the connecting shaft 101 is fixedly connected to a second cam 103. The first cam 102 and the second cam 103 are respectively rotatably connected to two connecting rods 104, the upper ends of the connecting rods 104 are rotatably connected to pistons 105, and the pistons 105 are slidably connected to cylinders 106. The right end of the connecting shaft 101 is fixedly connected to the transmission shaft 3, the first cam 102 and the second cam 103 are always arranged vertically, and the rear end of the cylinder 106 is connected to the housing 201 through and through, and the connecting portion is located where the lower O-type ball valve 208 is located.

[0038] In addition, the present invention also provides a method for preparing a device for preparing green intelligent suspended liquid fertilizer, the steps of which are as follows:

[0039] S1: Start the power supply of the servo motor 1 to drive the high-pressure plunger mechanism 100 to start working;

[0040] S2: When the piston 105 is in the depressurized state, the lower O-type ball valve 208 opens to allow the material conveyed by the lower connecting pipe 303 to enter the cavity formed in the housing 201 at the lower O-type ball valve 208;

[0041] S3: When the piston 105 is in the pressurized state, the piston 105 squeezes the housing 201 to form a cavity at the lower O-type ball valve 208 to perform a homogenization process;

[0042] S4: The upper O-type ball valve 204 opens under the pressure of the piston 105, allowing the homogenized material to enter the cavity formed in the housing 201 at the upper O-type ball valve 204;

[0043] S5: The material in the cavity formed at the upper O-type ball valve 204 of the housing 201 enters the upper connecting pipe 301 under the pressure of the piston 105;

[0044] S6: The material in the upper connecting pipe 301 passes through the turbine blade 304 under the action of the piston 105 and drives it to rotate. The material is fully mixed under the rotation of the spiral stirring blade 308 driven by the turbine blade 304, and enters the cavity formed at the bottom of the shell 201 through the lower connecting pipe 303 to wait for re-homogenization.

[0045] Green intelligent suspended liquid fertilizer includes urea ammonium nitrate solution: 10 parts-15 parts, urea: 15 parts-20 parts, potassium sulfate: 20 parts-30 parts; potassium dihydrogen phosphate: 10 parts-20 parts, monoammonium phosphate: 10 parts-20 parts, manganese nitrate: 2 parts-5 parts, calcium nitrate: 2 parts-5 parts, magnesium nitrate: 2 parts-5 parts, modified polyaspartic acid calcium salt: 10 parts-15 parts, amino acid liquid: 20 parts-30 parts.

[0046] The mass fraction of total nitrogen (N) in the urea ammonium nitrate solution is ≥28.0%, the mass fraction of amide nitrogen (N) is ≥14.0%, the mass fraction of potassium dihydrogen phosphate (KH2PO4) in potassium dihydrogen phosphate is ≥99.0%, the mass fraction of water-insoluble matter is ≤0.1%, the mass fraction of total nitrogen (N) in monoammonium phosphate is ≥11.0%, the mass fraction of available phosphorus (P2O5) is ≥51.0%, the mass fraction of water-insoluble matter in manganese nitrate is ≤0.04%, the mass fraction of water-insoluble matter in calcium nitrate is ≤0.1%, the mass fraction of water-insoluble matter in magnesium nitrate is ≤0.01%, the molecular weight of the modified polyaspartic acid calcium salt is in the range of 8000-10000, and the solid content is ≥45%.

[0047] When the present invention is in use, the material to be processed is poured into the upper connecting pipe 301, and then the sealing cover 6 on the upper connecting pipe 301 is closed, and the servo motor 1 is turned on to drive the transmission shaft 3 connected thereto to rotate, and the transmission shaft 3 drives the first cam 102 and the second cam 103 fixed thereto to rotate. Since the first cam 102 and the second cam 103 are always kept vertical, they drive the piston 105 to move alternately through the connecting rod 104. When the right piston 105 moves forward, the left piston 105 moves backward. However, the piston 105 is in a decompression state when it moves backward. At this time, the material located in the bottom cavity of the shell 201 passes through the lower O-type ball valve 208 opened due to the pressure difference and enters the cavity formed at the lower O-type ball valve 208 of the shell 201. When the piston When 105 moves backward to the maximum distance, the upper and lower pressures reach a balance, and the compressed lower spring 207 pushes the lower O-type ball valve 208 to close. Then the piston 105 moves forward and is in a pressurized state. The material in the cavity of the shell 201 at the lower O-type ball valve 208 is squeezed by the piston 105 to undergo a homogenization process. Then, as the piston 105 moves forward and continues to increase pressure, the upper O-type ball valve 204 will open due to the pressure difference, allowing the homogenized material below to enter the cavity of the shell 201 at the upper O-type ball valve 204, and enter the delivery pipe 302 through the upper connecting pipe 301. When the piston 105 moves forward to the maximum distance, the upper and lower pressures of the upper O-type ball valve 204 reach a balance, and the compressed upper spring 203 pushes the upper O-type ball valve 204 to close.

[0048] The material entering the conveying pipe 302 rotates as it passes through the turbine blades 304. The rotation of the turbine blades 304 drives the spiral stirring blades 308 via the driven shaft 306, mixing the material and preventing stratification. The fully mixed material then flows through the lower connecting pipe 303 into the bottom cavity of the housing 201 to await the next homogenization. After multiple homogenizations, the final product can be obtained by opening the sealing cap 6 at the bottom of the lower connecting pipe 303.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A green intelligent suspended liquid fertilizer preparation device, comprising a servo motor (1), a support base (2) fixedly connected to the lower surface of the servo motor (1), a transmission shaft (3) rotatably connected to the left end of the servo motor (1), a support column (4) provided on the left side of the servo motor (1), and a support platform (5) provided behind the servo motor (1), characterized in that: A mixing and conveying mechanism (300) is provided above the support platform (5), and there are two mixing and conveying mechanisms (300) in total. The mixing and conveying mechanisms (300) include an upper connecting pipe (301), the upper end of the upper connecting pipe (301) is fixedly connected to a sealing cover (6), the lower end of the upper connecting pipe (301) is provided with a high-pressure homogenizing mechanism (200), and the high-pressure homogenizing mechanism (200) is located on the right side of the device. The middle part of the upper connecting pipe (301) is fixedly connected to a conveying pipe (302), the other end of the conveying pipe (302) is fixedly connected to a lower connecting pipe (303), the bottom end of the lower connecting pipe (303) is fixedly connected to a sealing cover (6), the upper end of the lower connecting pipe (303) is provided with another high-pressure homogenizing mechanism (200), and the other high-pressure homogenizing mechanism (200) is located on the left side of the device. The left end of the transmission shaft (3) is provided with a high-pressure plunger mechanism (100).

2. The green intelligent suspended liquid fertilizer preparation device according to claim 1, characterized in that: The middle part of the delivery pipe (302) is fixedly connected to a limit plate (307), the interior of the limit plate (307) is fixedly connected to a connection block (305), the upper surface of the connection block (305) is fixedly connected to a turbine blade (304), the lower surface of the connection block (305) is fixedly connected to a driven shaft (306), the outer ring of the driven shaft (306) is fixedly connected to a spiral stirring blade (308), and the turbine blade (304) and the driven shaft (306) are rotatably connected to the limit plate (307).

3. The green intelligent suspended liquid fertilizer preparation device according to claim 2, characterized in that: The high-pressure homogenizing mechanism (200) comprises a shell (201), an upper connecting frame (202) is fixedly connected to the top end of the shell (201), an upper spring (203) is fixedly connected to the lower end of the upper connecting frame (202), an upper O-type ball valve (204) is fixedly connected to the lower end of the upper spring (203), an upper sealing ring (205) is provided at the lower end of the upper O-type ball valve (204), the upper sealing ring (205) is fixedly connected to the shell (201), the lower end of the upper sealing ring (205) is fixedly connected to the lower connecting frame (206), the lower end of the lower connecting frame (206) is fixedly connected to the lower spring (207), the lower end of the lower spring (207) is fixedly connected to the lower O-type ball valve (208), the lower end of the lower O-type ball valve (208) is provided with a lower sealing ring (209), and the lower sealing ring (209) is fixedly connected to the shell (201).

4. The device for preparing a green intelligent suspended liquid fertilizer according to claim 3, characterized in that: The diameter of the upper O-type ball valve (204) is larger than the diameter of the upper end of the upper sealing ring (205), the diameter of the lower O-type ball valve (208) is larger than the diameter of the upper end of the lower sealing ring (209), the top end of the upper connecting frame (202) is fixedly connected to the upper connecting pipe (301), and the bottom end of the housing (201) is fixedly connected to the lower connecting pipe (303).

5. The green intelligent suspended liquid fertilizer preparation device according to claim 4, characterized in that: The high-pressure plunger mechanism (100) comprises a connecting shaft (101), the left end of the connecting shaft (101) is fixedly connected to a first cam (102), the right end of the connecting shaft (101) is fixedly connected to a second cam (103), the first cam (102) and the second cam (103) are respectively rotatably connected to two connecting rods (104), the upper end of the connecting rod (104) is rotatably connected to a piston (105), and the piston (105) is slidably connected to a cylinder (106).

6. The device for preparing a green intelligent suspended liquid fertilizer according to claim 5, characterized in that: The right end of the connecting shaft (101) is fixedly connected to the transmission shaft (3), the first cam (102) and the second cam (103) are vertically distributed, the rear end of the cylinder (106) is connected to the housing (201), and the connecting portion is located at the position of the lower O-type ball valve (208).

7. The method for preparing the green intelligent suspended liquid fertilizer according to claim 6, characterized in that: S1: starting the power supply of the servo motor (1) to drive the high-pressure plunger mechanism (100) to start working; S2: When the piston (105) is in the depressurized state, the lower O-type ball valve (208) opens to allow the material conveyed by the lower connecting pipe (303) to enter the cavity formed in the housing (201) at the lower O-type ball valve (208); S3: When the piston (105) is in a pressurized state, the piston (105) squeezes the housing (201) to form a cavity at the lower O-type ball valve (208) to perform a homogenization process; S4: the upper O-type ball valve (204) is opened under the action of the piston (105) increasing the pressure, so that the homogenized material enters the cavity formed in the housing (201) at the upper O-type ball valve (204); S5: The material in the cavity formed by the housing (201) at the upper O-type ball valve (204) enters the upper connecting pipe (301) under the pressure-increasing action of the piston (105); S6: The material in the upper connecting tube (301) passes through the turbine blade (304) under the action of the piston (105) and drives it to rotate. The material is fully mixed under the rotation of the spiral stirring blade (308) driven by the turbine blade (304), and enters the cavity formed at the bottom of the shell (201) through the lower connecting tube (303) to wait for re-homogenization.

8. The method for preparing the green intelligent suspended liquid fertilizer according to claim 7, characterized in that: The formula of the suspended liquid fertilizer is as follows: the green intelligent suspended liquid fertilizer includes 10-15 parts of urea ammonium nitrate solution, 15-20 parts of urea, and 20-30 parts of potassium sulfate; Potassium dihydrogen phosphate: 10-20 parts, monoammonium phosphate: 10-20 parts, manganese nitrate: 2-5 parts, calcium nitrate: 2-5 parts, magnesium nitrate: 2-5 parts, modified polyaspartic acid calcium salt: 10-15 parts, amino acid solution: 20-30 parts.

9. The method for preparing the green intelligent suspended liquid fertilizer according to claim 8, characterized in that: The formula of suspended liquid fertilizer meets the following conditions: The mass fraction of total nitrogen (N) in the urea ammonium nitrate solution is ≥28.0%, the mass fraction of amide nitrogen (N) is ≥14.0%, the mass fraction of potassium dihydrogen phosphate (KH2PO4) in potassium dihydrogen phosphate is ≥99.0%, the mass fraction of water-insoluble matter is ≤0.1%, the mass fraction of total nitrogen (N) in monoammonium phosphate is ≥11.0%, the mass fraction of available phosphorus (P2O5) is ≥51.0%, the mass fraction of water-insoluble matter in manganese nitrate is ≤0.04%, the mass fraction of water-insoluble matter in calcium nitrate is ≤0.1%, the mass fraction of water-insoluble matter in magnesium nitrate is ≤0.01%, the molecular weight of the modified polyaspartic acid calcium salt is in the range of 8000-10000, and the solid content is ≥45%.

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