Multifunctional fertilizer mixing system and operation method

Abstract

The present invention relates to a multifunctional fertilizer mixing system, comprising: a dissolving unit, a filtering unit, and a mixing unit connected in sequence; the dissolving unit comprises: a mother liquor pool, and a dissolving barrel arranged in the mother liquor pool, the barrel wall of the dissolving barrel having holes, and a stirring mechanism arranged in the dissolving barrel; the mixing unit comprises: a mixing pool, and a flushing column arranged in the mixing pool, the water inlet of the flushing column being connected to the water outlet of a first water inlet pipe; the filtering unit comprises: a water retaining gate and a laminated gate, the water retaining gate being arranged between the outlet of the mother liquor pool and the inlet of the mixing pool, and the laminated gate being arranged on the side of the water retaining gate facing away from the mother liquor pool. The beneficial effects are as follows: the fertilizer passes through the dissolving unit, the filtering unit, and the mixing unit in sequence, and the dissolution, filtration, and mixing of the fertilizer are separated according to procedures, so that the dissolution is more thorough, the filtration efficiency is higher, and the mixing is more uniform. The laminated gate can perform secondary filtration on the fertilizer mother liquor, reducing the risk of the fertilizer liquid clogging the solenoid valve and the sprinkler.

Description

Technical Field

[0001] The present invention relates to the field of agricultural irrigation, and in particular to a multifunctional fertilizer mixing system and an operating method. Background Art

[0002] Integrated fertigation equipment is often used in agricultural applications. Currently, pipeline-type and tank-mixed fertigation equipment are commonly used. While pipeline-type fertigation equipment offers higher fertilization efficiency, it lacks the uniformity of liquid fertilizer compared to tank-mixed equipment and is prone to malfunctions such as clogged solenoid valves and emitters. Tank-mixed fertigation equipment mixes fertilizer more evenly, but the fertilizer dispensing process is intermittent, resulting in lower fertilization efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a multifunctional fertilizer mixing system and an operating method to overcome the deficiencies in the above-mentioned prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a multifunctional fertilizer mixing system, comprising: a dissolving part, a filtering part and a mixing part connected in sequence;

[0005] The dissolving part includes: a mother liquid pool, and a dissolving barrel arranged in the mother liquid pool, the barrel wall of the dissolving barrel has holes, and a stirring mechanism is arranged in the dissolving barrel;

[0006] The mixing part includes: a mixing tank, and a flushing column arranged in the mixing tank, wherein the water inlet of the flushing column is connected to the water outlet of the first water inlet pipe;

[0007] The filtration part includes: a water retaining gate and a laminated gate. The water retaining gate is arranged between the outlet of the mother liquor pool and the inlet of the mixing pool. The laminated gate is arranged on the side of the water retaining gate away from the mother liquor pool.

[0008] The beneficial effects of the present invention are:

[0009] The fertilizer passes through the dissolving part, filtering part and mixing part in sequence, and the dissolving, filtering and mixing of the fertilizer are separated according to the procedures, so that the dissolving is more thorough, the filtering efficiency is higher and the mixing is more uniform;

[0010] The water retaining gate separates the dissolving part from the mixing part to prevent water from flowing into the mother liquid pool when the liquid level in the mixing pool is higher than that in the mother liquid pool during the fertilizer dissolution process, thereby affecting the dissolution of the fertilizer; and to prevent the mother liquid from the mother liquid pool from continuously flowing into the mixing pool during the mixing process, thereby affecting the uniformity of the fertilizer liquid, thereby avoiding interference between the dissolving process and the mixing process;

[0011] The laminated door can perform secondary filtration on the fertilizer mother liquor, reducing the risk of fertilizer liquid clogging the solenoid valve and sprinkler.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the bottom of the mother liquor pool is inclined, and the bottom of the mother liquor pool on one side close to the water retaining gate is higher than the height of the other side.

[0014] The above further beneficial effects are: the tilted bottom of the mother liquor pool is convenient for cleaning and slag discharge, and on the other hand, it ensures that the fine fertilizer particles in the mother liquor pool slide along the slope to the bottom of the slope to prevent them from gathering and clogging the water gate and the stacking door.

[0015] Furthermore, the bottom of the mixing tank is inclined, and the height of one side of the bottom of the mixing tank close to the lamination door is higher than that of the other side.

[0016] The above further beneficial effects are: the tilted bottom of the mixing tank can accelerate the flow and mixing of the fertilizer mother liquor, thereby improving the mixing efficiency. At the same time, fine sediments can also slide along the slope to the bottom of the slope for easy recycling and reuse.

[0017] Furthermore, the bottom wall of the dissolving barrel has no holes.

[0018] The above further beneficial effects are: the holes on the barrel wall can play a preliminary filtering role, and the bottom of the dissolving barrel without holes can collect fine fertilizer particles that are not completely dissolved, and then fully dissolve them under the stirring action of the stirring mechanism, thereby improving the utilization efficiency of the fertilizer.

[0019] Furthermore, the flushing column includes: a column body, a flushing pipe and a column bottom. The column body is hollow inside and open at both ends. The upper end of the column body is sealed with a flange, and the column bottom seals the opening at the lower end of the column. Several flushing pipes are installed at the upper end of the column body, and each flushing pipe has one end passing through the flange seal to communicate with the inner cavity of the column body.

[0020] The above-mentioned further beneficial effect is: water of a certain pressure is injected into the column through the first water inlet pipe, and the water is injected into the mixing tank through the flushing pipe on the column, which can make full use of the power of pressurized water, accelerate the mixing of fertilizer mother liquor and inlet water, and improve the mixing efficiency of fertilizer liquid.

[0021] Furthermore, a plurality of flushing conduits installed on the upper end of the column are arranged in sequence from top to bottom at a preset interval, and the lengths of the flushing conduits provided on the upper end of the column gradually increase from top to bottom.

[0022] A further beneficial effect of the above method is that increasing the length of the flushing conduit can expand the influence radius of the pressurized water, so that the pressurized water and the fertilizer mother liquid are fully mixed.

[0023] Furthermore, the mixing section includes: multiple mixing tanks, which are arranged side by side, and a common wall is shared between two adjacent mixing tanks; a water retaining door and a laminated door are provided at the entrance of each mixing tank.

[0024] The above method has the following further beneficial effects: when the fertilizer concentration in one mixing tank reaches the set value for fertilizer production, the other mixing tank can simultaneously carry out the fertilizer mixing operation. The two mixing tanks alternately mix fertilizers, which can ensure uninterrupted fertilizer production and improve fertilization efficiency.

[0025] Furthermore, it also includes: a first liquid level sensor, a second liquid level sensor, a conductivity sensor and a controller. The first liquid level sensor is arranged in the mother liquid pool, the second liquid level sensor and the conductivity sensor are respectively arranged in the mixing pool, and the first liquid level sensor, the second liquid level sensor, the conductivity sensor and the stirring mechanism are respectively electrically connected to the controller.

[0026] The above method has the further beneficial effect of enabling the real-time acquisition of the liquid level in the mother liquor tank, the liquid level in the mixing tank and the conductivity value of the fertilizer liquid, so as to realize automatic control of the start and stop of the stirring mechanism and the liquid level according to the information, thereby reducing the labor intensity of the operator.

[0027] Furthermore, a cleaning pipe is provided at the bottom of the mother liquor tank wall opposite to the water retaining gate; and a drainage pipe is provided at the bottom of the mixing tank wall opposite to the water retaining gate.

[0028] The above method has the following further beneficial effects: after cleaning the mother liquor tank, the cleaning water can be discharged by opening the cleaning pipe; after cleaning the mixing tank, the cleaning water can be discharged by opening the drain pipe.

[0029] Based on the above technical solution, the present invention also provides an operating method of a multifunctional fertilizer mixing system, comprising the following steps:

[0030] S100, closing the cleaning pipe and water retaining gate of the mother liquor tank, and closing the drain pipe of the mixing tank, then adding a certain amount of fertilizer to the dissolving tank, and adding water to the mother liquor tank at the same time, starting the stirring mechanism, and using the force of the stirring paddle to dissolve the fertilizer in the dissolving tank, and the mother liquor seeps into the mother liquor tank through the holes on the wall of the dissolving tank;

[0031] S200, the first liquid level sensor monitors the liquid level in the mother liquid pool in real time. When the liquid level in the mother liquid pool reaches a certain depth value, a water retaining gate is opened, and the mother liquid in the mother liquid pool is filtered into the mixing pool through the corresponding laminated gate;

[0032] S300, the second liquid level sensor monitors the liquid level in the mixing tank in real time. When the liquid level in the mixing tank reaches a certain depth value, the corresponding water retaining door is closed, the first water inlet pipe is opened, water flows into the flushing column, and the pressurized water enters the mixing tank through the flushing pipe;

[0033] At the same time, another water retaining gate is opened, and the mother liquor in the mother liquor pool is filtered through the corresponding laminated gate to the corresponding mixing pool;

[0034] S400, the conductivity sensor monitors the conductivity of the fertilizer liquid in the mixing tank in real time. When the conductivity of the fertilizer liquid reaches the set value, the first water inlet pipe is closed to output the mixed fertilizer liquid to the outside;

[0035] S500, repeating steps S300 and S400, so that the mixing tanks alternately mix and discharge fertilizers, and keep the multifunctional fertilizer mixing system running continuously.

[0036] The above further beneficial effects are: accurate fertilizer mixing can be achieved to ensure uniform fertilizer liquid concentration, and alternating fertilizer mixing in the mixing tank can ensure uninterrupted fertilizer output and improve fertilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural diagram of the multifunctional fertilizer mixing system of the present invention;

[0038] Figure 2 This is a partial structural top view of the multifunctional fertilizer mixing system of the present invention;

[0039] Figure 3 This is a partial structural side view of the multifunctional fertilizer mixing system of the present invention;

[0040] Figure 4 This is a structural diagram of the water retaining door of the present invention;

[0041] Figure 5 This is a structural diagram of the laminated door of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0043] 1. Dissolution section, 110. Mother liquor tank, 111. Cleaning pipe, 120. Dissolution barrel, 130. Stirring mechanism, 131. Stirring paddle, 132. Motor, 2. Filtration section, 210. Water retaining gate, 220. Lamination gate, 3. Mixing section, 310. Mixing tank, 311. Drain pipe, 320. Flushing column, 321. Column, 322. Flushing conduit, 323. Column bottom, 330. First water inlet pipe, 4. First liquid level sensor, 5. Second liquid level sensor, 6. Conductivity sensor, 7. Controller. DETAILED DESCRIPTION

[0044] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0045] Example 1

[0046] like Figures 1 to 5 As shown, a multifunctional fertilizer mixing system includes:

[0047] Dissolving part 1, filtering part 2 and mixing part 3, wherein the dissolving part 1, filtering part 2 and mixing part 3 are connected in sequence;

[0048] The dissolving part 1 includes: a mother liquid pool 110, a dissolving barrel 120 and a stirring mechanism 130. The dissolving barrel 120 is arranged in the mother liquid pool 110. The barrel wall of the dissolving barrel 120 has holes. The stirring mechanism 130 is arranged in the dissolving barrel 120.

[0049] The mixing unit 3 includes a mixing tank 310, a flushing column 320, and a first water inlet pipe 330. The flushing column 320 is arranged in the mixing tank 310. The water inlet of the flushing column 320 is connected to the water outlet of the first water inlet pipe 330. A valve can be installed on the first water inlet pipe 330 to turn the water on and off.

[0050] The filter unit 2 includes a water retaining gate 210 and a laminated gate 220 . The water retaining gate 210 is arranged between the outlet of the mother liquor pool 110 and the inlet of the mixing pool 310 . The laminated gate 220 is arranged on the side of the water retaining gate 210 away from the mother liquor pool 110 .

[0051] Example 2

[0052] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 1, specifically as follows:

[0053] The bottom of the mother liquor tank 110 is inclined, and the bottom of the mother liquor tank 110 on one side close to the water retaining gate 210 is higher than the height of the other side. The inclination of the bottom of the mother liquor tank 110 is convenient for cleaning and slag discharge on the one hand, and on the other hand, it ensures that the fine fertilizer particles in the mother liquor tank 110 slide along the slope to the bottom of the slope to prevent them from gathering and clogging the water retaining gate 210 and the stacking door 220.

[0054] Example 3

[0055] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 1 or 2, specifically as follows:

[0056] The bottom of the mixing tank 310 is inclined, and the side of the bottom of the mixing tank 310 close to the stacking door 220 is higher than the other side. The inclined bottom of the mixing tank 310 can accelerate the flow and mixing of the fertilizer mother liquor, thereby improving the mixing efficiency. At the same time, fine sediment can also slide along the slope to the bottom of the slope for easy recycling and reuse.

[0057] Example 4

[0058] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 1, 2 or 3, and the details are as follows:

[0059] The bottom wall of the dissolving barrel 120 has no holes, while the holes on the barrel wall of the dissolving barrel 120 are above 80 meshes. The holes on the barrel wall can play a preliminary filtering role. The bottom of the dissolving barrel 120 without holes can collect fine fertilizer particles that have not been completely dissolved, and then fully dissolve them under the stirring action of the stirring mechanism 130, thereby improving the utilization efficiency of the fertilizer.

[0060] Example 5

[0061] like Figure 1 、 Figure 3 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 4, specifically as follows:

[0062] The flushing column 320 includes: a column 321, a flushing pipe 322 and a column base 323; the column 321 is hollow inside and open at both ends; the upper end of the column 321 is sealed with a flange, and the column base 323 seals the opening at the lower end of the column 321; a number of flushing pipes 322 are installed at the upper end of the column 321, and each flushing pipe 322 has one end passing through the flange seal and communicating with the inner cavity of the column 321; water at a certain pressure is injected into the column 321 through the first water inlet pipe 330, and the water will be injected into the mixing tank 310 through the flushing pipe 322 on the column 321, which can fully utilize the power of pressurized water to accelerate the mixing of fertilizer mother liquor and influent water, thereby improving the mixing efficiency of fertilizer liquid.

[0063] Example 6

[0064] like Figure 1 、 Figure 3 As shown, this embodiment is a further improvement on the basis of embodiment 5, specifically as follows:

[0065] The plurality of flushing pipes 322 installed on the outer wall of the column 321 are arranged in sequence from top to bottom at preset intervals. The length of the flushing pipes 322 set on the outer wall of the column 321 gradually increases from top to bottom. Because the pressure of water increases with the depth of water, increasing the length of the flushing pipes 322 can expand the influence radius of the pressurized water and allow the pressurized water to be fully mixed with the fertilizer mother liquor.

[0066] Example 7

[0067] like Figure 2 、 Figure 3 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 6, specifically as follows:

[0068] The mixing section 3 includes: multiple mixing tanks 310, which are arranged side by side, and a common wall is shared between two adjacent mixing tanks 310; a water retaining gate 210 and a laminated door 220 are provided at the entrance of each mixing tank 310. For example, there can be 2 to 5 mixing tanks 310. When the fertilizer liquid concentration in one mixing tank 310 reaches the set value for fertilizer production, the other mixing tank 310 can perform the fertilizer mixing operation at the same time. The two mixing tanks 310 alternately mix fertilizers to ensure uninterrupted fertilizer production and improve fertilization efficiency.

[0069] For the above embodiments, the laminated door 220 has a filter groove with a mesh size of 120 or above. The laminated door 220 can perform secondary filtration on the fertilizer mother liquid, reducing the risk of the fertilizer liquid clogging the solenoid valve and the sprinkler.

[0070] Example 8

[0071] like Figure 1 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 7, and the details are as follows:

[0072] The multifunctional fertilizer mixing system further includes: a first liquid level sensor 4, a second liquid level sensor 5, a conductivity sensor 6 and a controller 7;

[0073] The first liquid level sensor 4 is arranged in the mother liquid tank 110, and the first liquid level sensor 4 is used to monitor the liquid level in the mother liquid tank 110;

[0074] The second liquid level sensor 5 and the conductivity sensor 6 are respectively arranged in the mixing tank 310. The second liquid level sensor 5 is used to monitor the liquid level in the mixing tank 310, and the conductivity sensor 6 is used to monitor the conductivity value of the fertilizer liquid in the mixing tank 310;

[0075] The signal output of the first liquid level sensor 4 is electrically connected to the signal input of the controller 7, the signal output of the second liquid level sensor 5 is electrically connected to the signal input of the controller 7, the signal output of the conductivity sensor 6 is electrically connected to the signal input of the controller 7, and the signal input of the stirring mechanism 130 is electrically connected to the signal output of the controller 7; the signal input of the water gate 210 is electrically connected to the signal output of the controller 7, and automatic switching can be achieved. Of course, manual switching of the water gate 210 can also be selected, depending on actual needs.

[0076] Example 9

[0077] like Figure 1 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 8, and the details are as follows:

[0078] A cleaning pipe 111 is provided below the wall of the mother liquid pool 110 opposite to the water retaining gate 210. The cleaning pipe 111 is provided with a valve, which can be used to open and close the water supply. After cleaning the mother liquid pool 110, the cleaning water can be discharged by opening the valve on the cleaning pipe 111.

[0079] A drain pipe 311 is provided below the mixing pool 310 wall opposite to the water retaining gate 210. The drain pipe 311 is also provided with a valve, through which the water can be turned on and off. After cleaning the mixing pool 310, the cleaning water can be discharged by opening the valve on the drain pipe 311.

[0080] Example 10

[0081] like Figure 2 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 9, specifically as follows:

[0082] Each mixing tank 310 is equipped with 2 to 5 sets of flushing columns 320, which are fixed in the mixing tank 310 by support beams, making full use of pressurized water to mix the fertilizer liquid, ensuring that the fertilizer liquid is mixed more evenly and at a faster speed;

[0083] One to five dissolving barrels 120 are arranged in the mother liquid pool 110. The dissolving barrels 120 are fixed in the mother liquid pool 110 by support beams, and each dissolving barrel 120 is equipped with a stirring mechanism 130. This increases the amount of fertilizer dissolved and the dissolving speed, thereby improving the fertilizer dissolving efficiency.

[0084] The stirring mechanism 130 includes: a stirring paddle 131 and a motor 132. The motor 132 is fixed on the support beam. The stirring paddle 131 is arranged in the dissolution barrel 120. The main shaft of the motor 132 is connected to the stirring paddle 131. The signal input of the motor 132 is electrically connected to the signal output of the controller 7. The stirring paddle 131 can be driven to rotate in the dissolution barrel 120 by the motor 132.

[0085] Example 11

[0086] A method for operating a multifunctional fertilizer mixing system comprises the following steps:

[0087] S100, close the cleaning pipe 111 and the water-blocking gate 210 of the mother liquid tank 110, and close the drain pipe 311 of the mixing tank 310, then add a certain amount of fertilizer to the dissolving tank 120, add water to the mother liquid tank 110, start the stirring mechanism 130, and stir the fertilizer in the dissolving tank 120 to dissolve it, and the mother liquid seeps into the mother liquid tank 110 through the holes on the wall of the dissolving tank 120;

[0088] S200, the first liquid level sensor 4 monitors the liquid level in the mother liquid pool 110 in real time. When the liquid level in the mother liquid pool 110 reaches a certain depth value, a water retaining door 210 is opened, and the mother liquid in the mother liquid pool 110 is filtered into the mixing pool 310 through the corresponding laminated door 220;

[0089] S300, the second liquid level sensor 5 monitors the liquid level in the mixing tank 310 in real time. When the liquid level in the mixing tank 310 reaches a certain depth, the corresponding water retaining door 210 is closed, the first water inlet pipe 330 is opened, and water flows into the flushing column 320. The pressurized water enters the mixing tank 310 through the flushing pipe 322;

[0090] At the same time, another water-blocking door 210 is opened, and the mother liquid in the mother liquid pool 110 is filtered through the corresponding laminated door 220 to the corresponding mixing pool 310;

[0091] S400, the conductivity sensor 6 monitors the conductivity of the fertilizer liquid in the mixing tank 310 in real time. When the conductivity of the fertilizer liquid reaches a set value, the first water inlet pipe 330 is closed to output the mixed fertilizer liquid.

[0092] S500 , repeating steps S300 and S400 to enable the mixing tank 310 to alternately mix and discharge fertilizers, thereby maintaining the continuous operation of the multifunctional fertilizer mixing system.

[0093] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A multifunctional fertilizer mixing system, characterized in that: It comprises: a dissolving part (1), a filtering part (2) and a mixing part (3) connected in sequence; The dissolving portion (1) comprises: a mother liquor pool (110), and a dissolving barrel (120) arranged in the mother liquor pool (110), wherein the dissolving barrel (120) is fixed in the mother liquor pool (110) via a support beam; a barrel wall of the dissolving barrel (120) has holes, a stirring mechanism (130) is arranged in the dissolving barrel (120), and the stirring mechanism (130) comprises: a stirring paddle (131) and a motor (132); the stirring paddle (131) is arranged in the dissolving barrel (120), and the stirring paddle (131) can be driven by the motor (132) to rotate in the dissolving barrel (120); the bottom wall of the dissolving barrel (120) has no holes, the bottom of the mother liquor pool (110) is inclined, and the bottom of the mother liquor pool (110) is higher on one side close to the water retaining gate (210) than on the other side; The mixing portion (3) comprises: a mixing pool (310), and a flushing column (320) arranged in the mixing pool (310), wherein the water inlet of the flushing column (320) is connected to the water outlet of the first water inlet pipe (330), and the bottom of the mixing pool (310) is inclined, and the bottom of the mixing pool (310) is higher on one side close to the lamination door (220) than on the other side; The flushing column (320) comprises: a column (321), a flushing conduit (322) and a column bottom (323); the column (321) is hollow inside and open at both ends; the upper end of the column (321) is sealed with a flange, and the column bottom (323) seals the lower end opening of the column (321); a plurality of flushing conduits (322) are installed at the upper end of the column (321), and each flushing conduit (322) has one end passing through the flange seal and communicating with the inner cavity of the column (321); The filtering section (2) comprises a water retaining gate (210) and a laminated gate (220). The water retaining gate (210) is arranged between the outlet of the mother liquor pool (110) and the inlet of the mixing pool (310). The water retaining gate (210) can be opened and closed. The laminated gate (220) is arranged on a side of the water retaining gate (210) facing away from the mother liquor pool (110). The laminated gate (220) performs secondary filtration on the fertilizer mother liquor.

2. A multifunctional fertilizer mixing system according to claim 1, characterized in that: The plurality of flushing conduits (322) installed at the upper end of the column (321) are arranged in sequence from top to bottom at a preset interval, and the length of the flushing conduits (322) provided at the upper end of the column (321) gradually increases from top to bottom.

3. A multifunctional fertilizer mixing system according to claim 2, characterized in that: The mixing section (3) comprises: a plurality of mixing pools (310), the plurality of mixing pools (310) being arranged side by side, with a common wall between two adjacent mixing pools (310); a water retaining door (210) and a laminated door (220) being provided at the entrance of each mixing pool (310).

4. A multifunctional fertilizer mixing system according to claim 3, characterized in that: Also includes: A first liquid level sensor (4), a second liquid level sensor (5), a conductivity sensor (6) and a controller (7), wherein the first liquid level sensor (4) is arranged in a mother liquid tank (110), the second liquid level sensor (5) and the conductivity sensor (6) are respectively arranged in a mixing tank (310), and the first liquid level sensor (4), the second liquid level sensor (5), the conductivity sensor (6) and the stirring mechanism (130) are respectively electrically connected to the controller (7).

5. A multifunctional fertilizer mixing system according to claim 4, characterized in that: The mother liquor tank (110) is provided with a cleaning pipe (111) below the tank wall opposite to the water retaining gate (210); and the mixing tank (310) is provided with a drainage pipe (311) below the tank wall opposite to the water retaining gate (210).

6. An operating method of the multifunctional fertilizer mixing system according to claim 5, characterized in that: The steps include: S100, closing the cleaning pipe (111) and the water retaining gate (210) of the mother liquid pool (110), and closing the drain pipe (311) of the mixing pool (310), then adding a certain amount of fertilizer to the dissolving barrel (120), and adding water to the mother liquid pool (110), starting the stirring mechanism (130), and dissolving the fertilizer in the dissolving barrel (120) by the force of the stirring paddle (131), and the mother liquid seeping into the mother liquid pool (110) through the holes on the barrel wall of the dissolving barrel (120); S200, the first liquid level sensor (4) monitors the liquid level in the mother liquid pool (110) in real time. When the liquid level in the mother liquid pool (110) reaches a certain depth value, a water retaining door (210) is opened, and the mother liquid in the mother liquid pool (110) is filtered through the corresponding laminated door (220) to the mixing pool (310); S300, the second liquid level sensor (5) monitors the liquid level in the mixing tank (310) in real time. When the liquid level in the mixing tank (310) reaches a certain depth value, the corresponding water retaining door (210) is closed, the first water inlet pipe (330) is opened, and water flows into the flushing column (320). The pressurized water enters the mixing tank (310) through the flushing conduit (322); At the same time, another water retaining door (210) is opened, and the mother liquid in the mother liquid pool (110) is filtered through the corresponding laminated door (220) to the corresponding mixing pool (310); S400, the conductivity sensor (6) monitors the conductivity value of the fertilizer liquid in the mixing tank (310) in real time. When the conductivity value of the fertilizer liquid reaches a set value, the first water inlet pipe (330) is closed to output the mixed fertilizer liquid to the outside; S500, repeating steps S300 and S400, so that the mixing tank (310) alternately mixes and discharges fertilizers, and keeps the multifunctional fertilizer mixing system running continuously.

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