Concentrated liquid water-soluble fertilizer production device

Abstract

The utility model aims to provide a concentrated liquid water-soluble fertilizer production device, which comprises a fertilizer preparation system, a water-soluble fertilizer production system, a water-soluble fertilizer production system, a water-soluble fertilizer production system, a water-soluble fertilizer production system and a water-soluble fertilizer production system, wherein the dust removal feeding station is used for feeding solid fertilizer into the fertilizer preparation system; the powder-liquid mixing machine is used for quickly mixing solid fertilizer and liquid, and fully mixing the fertilizer through a circulating reciprocating powder-liquid dispersing and mixing process; the powder-liquid mixer is circularly connected with the fertilizer liquefying tank through a circulating pipeline and a self-priming pump; the fertilizer liquefying tank is used for shearing and liquefying a solid fertilizer and aqueous solution mixture; and the fertilizer storage system is used for storing the high-concentration liquid fertilizer produced by the fertilizer preparation system in a fertilizer storage tank at a high position and providing the produced liquid fertilizer for a user when needed. According to the utility model, macroelement fertilizers, medium trace element fertilizers and organic fertilizers required by crops are dissolved in water at a relatively high concentration to form a high-concentration liquid fertilizer capable of providing nutrient elements for the whole crops.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of agricultural irrigation technology, and relates to a concentrated liquid water-soluble fertilizer production device, in particular to a device and production method for preparing a multi-element nutrient fertilizer required for crop growth. BACKGROUND

[0002] Spray micro-irrigation water and fertilizer integration is a high-efficiency irrigation and fertilization technology in which fertilizers required for crop growth are dissolved in water, the fertilizer solution is injected into an irrigation pipeline system through a fertilization device, and then irrigation and fertilization are performed on crops. The technology has been widely used in the world and plays an important role in promoting the improvement of water and fertilizer utilization efficiency and crop yield. At present, in the process of spray micro-irrigation water and fertilizer integration, solid waste is often dissolved or liquid fertilizer is mixed with irrigation water in the pipeline, and then is applied to the field through a sprinkler or a micro-irrigation emitter. For solid fertilizers, the solid chemical fertilizers (such as urea, ammonium sulfate, and potassium chloride) with good solubility need to be dissolved in a fertilization barrel or a fertilization tank in advance, and then are injected into the irrigation water pipeline by means of a Venturi fertilizer applicator, a fertilizer injection pump, or a pressure difference device, and then are mixed with the irrigation water and applied to the field through the sprinkler or the micro-irrigation emitter. For liquid fertilizers, the fertilizers need to be injected into the pipeline by means of the Venturi fertilizer applicator, the fertilizer injection pump, or the pressure difference device, and then are mixed with water and applied to the field.

[0003] The applicant found that the prior art has the following problems:

[0004] 1) For the application of solid fertilizers, the following problems exist: ① In the existing process of applying solid fertilizers, bagged chemical fertilizers often need to be manually added one by one into a fertilization barrel or a fertilization tank, which requires a large amount of labor and time cost; ② The existing market solid fertilizers cannot meet the requirement that the insoluble matter is less than 1%, and cannot be fully dissolved in the fertilization barrel or the fertilization tank, which leads to the solid fertilizers entering the pipeline with water, increasing the risk of blockage of the pipeline, the sprinkler, and the emitter; ③ A large fertilization barrel and a fertilization tank are often required in the existing technology to meet the requirement that the fertilizers are completely dissolved in a fixed land area, which leads to an increase in the volume and cost of the fertilization system; ④ The multiple solid fertilizers required by crops may generate precipitates after being dissolved in water due to chemical reactions, which leads to the need to apply the multiple chemical fertilizers one by one.

[0005] 2) For the application of liquid fertilizers, the following problems exist: The existing liquid fertilizers are mostly solutions prepared by dissolving one or more of soluble macro-, medium-, and micro-element fertilizers in water, and the concentration of the existing liquid fertilizers in the market is generally low due to the limitation of the solubility of the fertilizers, which leads to a large volume of liquid fertilizers required for irrigation and fertilization, a high transportation cost, and difficulty in large-scale promotion.

[0006] 3) The existing solid fertilizer and liquid fertilizer application methods do not consider how to apply the organic state fertilizer (such as mineral source humic acid, amino acid, water-soluble carbohydrate, etc.) required by crops. The improvement of organic state fertilizer on soil improvement, nutrient absorption and crop growth has been studied a lot, but because the organic state fertilizer is mostly in powder form, a large amount of dust will be generated when it is added to the fertilizer tank or fertilizer barrel, affecting the health of the operator; and it will quickly precipitate when it enters the water, causing the irrigation system to be blocked, resulting in that the organic state fertilizer is mostly applied to the soil through base fertilizer, and its effectiveness is greatly reduced.

[0007] Therefore, in the field of agricultural irrigation technology, there is an urgent need for a production device and method for mixing the macroelement fertilizer, the microelement fertilizer and the organic state fertilizer required by crops to generate a soluble and high-concentration water-soluble fertilizer, to solve the problems existing in the application of the existing solid fertilizer and liquid fertilizer in the spray micro-irrigation water and fertilizer integrated technology, and to further play the effect of the spray micro-irrigation water and fertilizer integrated technology in water saving, fertilizer reduction, salt inhibition and yield increase. Practical new type content

[0008] In view of the above problems, the purpose of the present application is to provide a concentrated liquid water-soluble fertilizer production device, so that the macroelement fertilizer, the microelement fertilizer and the organic fertilizer required by crops can be dissolved in water at a high concentration to form a high-concentration liquid fertilizer that can provide full-nutrient nutrients for crops, reduce the labor demand when applying solid fertilizer, improve the nutrient concentration of traditional liquid fertilizer, and mix the organic state fertilizer which is not easy to dissolve in water into the liquid fertilizer to improve the application effect of the spray micro-irrigation water and fertilizer integrated technology.

[0009] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0010] The concentrated liquid water-soluble fertilizer production device comprises a fertilizer mixing system and a fertilizer storage system.

[0011] The fertilizer mixing system is mainly used for high-concentration mixing of solid fertilizer (including common macroelement fertilizer, microelement fertilizer and organic fertilizer) and water to generate liquid fertilizer. The device comprises a dust removal feeding station, a powder-liquid mixing machine, a self-priming pump, a fertilizer liquefaction tank and a circulating pipeline connecting each part.

[0012] The dust removal feeding station is mainly used for feeding solid fertilizer into the fertilizer mixing system while ensuring no solid particle dust during the feeding process. The dust removal feeding station includes five parts: a side feeding port, a top dust suction fan, a filtering device, a first driving motor, and a bottom discharge port. During the fertilizer mixing process, solid materials are added into the fertilizer mixing system through the feeding port by manual operation or by a solid material filling device. The first driving motor drives the dust suction fan to keep the feeding port and the inside of the feeding station in a negative pressure state. After the fertilizer dust passes through the filtering device, it is adsorbed on the filter core of the filtering device. Other solid fertilizers enter the discharge port under the action of gravity. The dust suction fan is equipped with a pulse device. When working normally, it generates a negative pressure suction force. After working for a period of time, the dust suction fan reverses rotation to generate a blowing force, and the dust can fall back into the discharge port, ensuring that the raw materials do not flow away.

[0013] The powder-liquid mixing machine is mainly used for quickly mixing solid fertilizer and liquid. It realizes the full mixing of the fertilizer through a cycle of powder-liquid dispersion mixing process. The powder-liquid mixing machine includes a powder inlet, a mixed material inlet, a mixed material outlet, a working cavity, and a second driving motor. The powder inlet of the powder-liquid mixing machine is connected to the discharge port of the dust removal feeding station. The mixed material inlet is connected to the fertilizer liquefaction tank through a pipeline. The mixed material outlet is connected to the self-suction pump. Under the action of the second driving motor, a strong suction force is generated in the working cavity during normal operation, which sucks solid fertilizer from the discharge port of the dust removal feeding station and liquid from the fertilizer liquefaction tank into the working cavity and generates rapid rotation to realize dispersion mixing, and then flows out from the mixed material outlet.

[0014] The self-suction pump has self-suction capability, which can make the fertilizer solution in the first pipeline of the fertilizer mixing system circulate in the system, increasing the solubility of solid fertilizer and liquid.

[0015] The fertilizer liquefying tank is mainly used for shearing and liquefying the mixture of solid fertilizer and water solution input through pipeline into high-concentration liquid fertilizer in small molecule state. The fertilizer liquefying tank comprises a tank body, a third driving motor, a shearing liquefier, a tank cover, a liquid level meter and a tank support structure. The tank cover is connected with the mixture outlet of the powder-liquid mixing machine through pipeline and receives the mixture of solid fertilizer and water. The liquid level meter is installed on the side of the tank body and is mainly used for observing the depth of the liquid fertilizer mixture in the tank body. The lower end of the tank body is in arc funnel shape and has a small opening and is connected with the mixture inlet of the powder-liquid mixing machine through pipeline. The shearing liquefier comprises a shearing liquefier head, a central shaft and a support rod. The shearing liquefier head comprises a stator and a rotor. The rotor is connected with the third driving motor through the central shaft. The rotor has blades and can rotate at high speed under the driving of the third driving motor. A gap is arranged between the stator and the rotor. The gap has a width of 0.2-1 mm. The fertilizer mixture can collide fiercely between the stator under the driving of the rotor and is sheared to micron level. The rotor of the shearing head can form a negative pressure vortex during operation and continuously suck the lower material into the rotor cavity. Small holes are arranged on the stator. The material is thrown out of the negative pressure vortex under the action of centrifugal force. The material is mixed more uniformly and the finished product is prevented from settling.

[0016] The tank cover has a certain gap compared with the tank body and is used for putting the part of liquid nutrient fertilizer to be added. The tank support structure is used for supporting the tank structure.

[0017] The fertilizer storage system is mainly used for storing the high-concentration liquid fertilizer produced by the fertilizer preparation system in the high fertilizer storage tank and providing the finished liquid fertilizer to the user when needed. The fertilizer storage system mainly comprises a fertilizer storage tank, an operation table, a maintenance staircase, a fertilizer discharge pump, connecting pipelines and valves.

[0018] The fertilizer storage tank is mainly used for storing the fertilizer produced by the fertilizer preparation system. In order to ensure that the fertilizer liquid can be stored in the production workshop for a short period of time after production, the volume of the fertilizer storage tank is selected by referring to the volume of the tank body of the fertilizer preparation system and the number is preferably more than 3 according to the size of the workshop. The fertilizer storage tank is connected with the fertilizer preparation system through connecting pipelines and is placed on the operation table to reduce the floor area occupied by the production device. One of the fertilizer storage tanks is connected with the fertilizer liquefying tank of the fertilizer preparation system through pipeline, can be filled with water and supplies water to the fertilizer liquefying tank of the fertilizer preparation system for making liquid fertilizer.

[0019] The operation table is made of metal or other building materials and is mainly used for placing the fertilizer storage tank.

[0020] The maintenance staircase is connected with the operation table and the ground and is mainly used for personnel to go back and forth between the operation table and the ground for related operation.

[0021] The connecting pipeline is mainly used for connecting the fertilizer mixing system and the fertilizer storage system. A valve is arranged on the connecting pipeline, which is used for controlling the fertilizer storage and release process of the single or multiple fertilizer storage tanks.

[0022] The fertilizer release pump is located below the operation table of the fertilizer storage system, one end of which is connected with the fertilizer storage tank and the other end of which is connected with the fertilizer release port, and is used for quickly releasing the high-concentration liquid fertilizer in the fertilizer storage tank to the external fertilizer transport container.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1) The high-concentration liquid fertilizer production device provided by the utility model can be used for producing liquid fertilizer containing multiple nutrient elements, and compared with the traditional solid fertilizer, the human cost and time cost of dissolving and injecting the fertilizer are greatly reduced;

[0025] 2) The device provided by the utility model can generate small-molecule, easily-absorbed and high-solubility multi-nutrient liquid fertilizer through the shearing liquefaction of conventional chemical fertilizer, trace element fertilizer and organic material, and solves the problem that the organic material is easy to block the pipeline, nozzle or sprinkler when added to the fertilization system;

[0026] 3) The high-concentration liquid fertilizer production device provided by the utility model can produce high-concentration liquid fertilizer containing only about 30% of water, and the amount of fertilizer in unit volume of liquid fertilizer is increased. Compared with the traditional liquid fertilizer, the volume and weight of the fertilizer required on the unit area are significantly reduced, and the transportation cost is greatly reduced;

[0027] 4) When the fertilizer is put into the production device, the dust-free feeding station is used for feeding, so that the smoke dust generated when the chemical fertilizer or organic material is put in is avoided, the health of the operator is protected, the fertilizer feeding station can also realize the full use of the fertilizer dust through the fan back blowing, and the fertilizer utilization rate is improved;

[0028] 5) The high-concentration liquid fertilizer production device fuses the fertilizer mixing system and the fertilizer storage system, and places the fertilizer storage system on the operation table, so that the equipment occupation space is greatly saved;

[0029] 6) The main structural parameters and operating parameters of the production device are specified, and the economy of the production device can be maximized. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic view of the concentrated liquid water-soluble fertilizer production device of the utility model;

[0031] Figure 2 is a schematic view of the fertilizer mixing system of the utility model;

[0032] Figure 3 is a schematic view of the powder-liquid mixing machine device;

[0033] Figure 4 is a schematic diagram of a fertilizer mixing system shear liquefier device;

[0034] Figure 5 is a schematic diagram of the fertilizer storage system of the utility model. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawings and specific embodiments, but not as the limitation of the utility model.

[0036] As Figure 1 Indicated, the utility model relates to concentrated liquid water soluble fertilizer production device, including two parts of fertilizer mixing system 1 and fertilizer storage system 2.

[0037] As Figure 2 And Figure 3 Indicated, the fertilizer mixing system 1 is mainly used to mix solid fertilizer (including common macroelement fertilizer, trace element fertilizer and organic fertilizer) with water at high concentration, and generates liquid fertilizer.The device includes dusting feeding station 101, powder liquid mixing machine 102, self-priming pump 103, fertilizer liquefying tank 104 and connecting each part's circulating pipeline 105 five parts.

[0038] As Figure 2 And Figure 3 Indicated, the dusting feeding station 101 is mainly used to feed solid fertilizer into the fertilizer mixing system, while ensuring that there is no solid particle dust in the feeding process.Dusting feeding station 101 includes five parts of side feeding port 1011, top dust suction fan 1012, filtering device 1013, first drive motor 1014 and bottom discharge port 1015.During the process of mixing fertilizer, solid material is added into the fertilizer mixing system 1 through feeding port 1011 by artificial or solid material filling device.The first drive motor 1014 drives the dust suction fan 1012 to make the feeding port 1011 and the inside of the feeding station 101 be in a negative pressure state, and the fertilizer dust passes through the filtering device 1013 and is adsorbed in the filter element on the filtering device 1013, and other solid fertilizer enters the discharge port 1015 under the action of gravity.The dust suction fan 1012 is provided with pulse device, generates negative pressure suction force when working normally;after working for a period of time, the dust suction fan 1012 reversely rotates, generates blowing force, and the dust can fall into the discharge port 1015 again, to ensure that the raw materials do not flow.

[0039] As Figure 2 And Figure 3As shown, the powder-liquid mixer 102 is mainly used for mixing solid fertilizer and liquid quickly, and realizes full mixing of the fertilizer through the circulating reciprocating powder-liquid dispersion mixing process. The powder-liquid mixer 102 includes a powder inlet 1021, a mixed material inlet 1022, a mixed material outlet 1023, a working cavity 1024, and a second driving motor 1025. The powder inlet 1021 of the powder-liquid mixer is connected with the discharge port 1015 of the dust removal feeding station 101; the mixed material inlet 1022 is connected with the fertilizer liquefaction tank 104 through a circulating pipeline 105; and the mixed material outlet 1023 is connected with the self-priming pump 103. In the normal working state, under the action of the second driving motor 1025, strong suction is generated in the working cavity 1024, the solid fertilizer from the discharge port 1015 of the dust removal feeding station 101 and the liquid from the fertilizer liquefaction tank 104 are sucked into the working cavity, and fast rotation is generated to realize dispersion mixing, and then flows out from the mixed material outlet 1023.

[0040] The self-priming pump 103 has self-priming capability, can make the fertilizer solution in the circulating pipeline 105 of the fertilizer preparation system realize circulation in the system, and increase the compatibility of the solid fertilizer and the liquid.

[0041] As Figure 2 , the fertilizer liquefaction tank 104 is mainly used for shearing and liquefying the solid fertilizer and water solution mixture input from the circulating pipeline 105 into high-concentration liquid fertilizer in a small molecule state. The fertilizer liquefaction tank 104 includes a tank body 1041, a third driving motor 1042, a shearing liquefier 1043, a tank cover 1044, a liquid level meter 1045, and a tank support structure 1046. The lower end of the tank body 1041 is in an arc-shaped funnel shape and has a small opening, and is connected with the mixed material inlet 1022 of the powder-liquid mixer 102 through a pipeline. The tank cover 1044 is connected with the mixed material outlet 1023 of the powder-liquid mixer 102 through a pipeline, and receives the mixed liquid of the solid fertilizer and water. The liquid level meter 1045 is installed on the side of the tank body 1041, and is mainly used for observing the depth of the liquid fertilizer mixture in the tank body 1041.

[0042] As Figure 4The shearing liquefier 1043 comprises a shearing liquefying head 1043-1, a central shaft 1043-2 and a support rod 1043-3. The shearing liquefying head 1043-1 comprises a stator 1043-1-1 and a rotor 1043-1-2, the rotor 1043-1-2 is connected with the third driving motor 1042 through the central shaft 1043-2; the rotor 1043-1-2 has blades and can rotate at high speed under the driving of the third driving motor 1042; a gap is arranged between the stator 1043-1-1 and the rotor 1043-1-2, the gap has a width of 0.2-1 mm, the fertilizer mixed liquid can collide intensively between the stator 1043-1-1 and the rotor 1043-1-2 under the driving of the rotor 1043-1-2, shearing occurs, and the material can be processed to the micron level; the rotor 1043-1-2 can form a negative pressure vortex during operation, and continuously suck the lower material into the rotor cavity; a small hole is arranged on the stator 1043-1-1, the material is thrown out of the negative pressure vortex under the action of centrifugal force, the material is mixed more uniformly, and the finished product is prevented from producing sedimentation. A certain gap is left between the tank cover 1044 and the tank body 1041 for putting the part of liquid nutrient fertilizer to be added. The tank body support structure 1046 is used for supporting the tank body structure.

[0043] The fertilizer distribution system adopts the principle of near production and near use for design, the volume (V 罐 , m 3 ) of the tank body 1041 can be calculated according to the crop area and the fertilizer requirement controlled by the liquid fertilizer production device plan:

[0044]

[0045] In the formula, A is the area controlled by the liquid water-soluble fertilizer production device plan, hm 2 ; F is the fertilizer requirement per unit area of farmland in a single fertilization period, kg / hm 2 ; T is the length of a single fertilization period, d; t1 is the daily working length of the water-soluble fertilizer production device, h; t2 is the length of a single batch of fertilizer production and consumption, h.

[0046] In the embodiment, the area A controlled by the liquid water-soluble fertilizer production device plan is 500 hm 2 ; the fertilizer requirement F per unit area of farmland in a single fertilization period is 100 kg / hm 2 ; the length T of a single fertilization period is 15 d; the daily working length t1 of the water-soluble fertilizer production device is 20 h; and the length t2 of a single batch of fertilizer production and consumption is 5 h. It is calculated that V 罐 is 33.3 m 3 .

[0047] To ensure that the fertilizer liquefaction tank occupies a small area and its structure is relatively stable, the tank height (h, m) is set to be 1.5 times the diameter (d, m), and the fertilizer liquefaction tank diameter can be calculated according to the following formula:

[0048]

[0049] According to the calculation, the fertilizer liquefaction tank body diameter is 3.05 m, and the tank body height is 4.57 m.

[0050] To ensure that the macroelement fertilizer, trace element fertilizer and organic fertilizer are fully mixed with the aqueous solution, it is necessary to ensure that half of all fertilizers pass through the shear liquefaction in unit time. The processing capacity (the flow rate of the shear liquefier 1043 in the fertilizer liquefaction tank 104 after being disturbed by the rotor blade and being thrown out through the stator small hole in unit time, Q 剪 , m 3 / h) of the shear liquefier is calculated according to the following formula. After the processing capacity of the shear liquefier is determined, the shear liquefaction head specification and the driving motor model can be adapted accordingly. In this embodiment, a motor with a speed of 1400 revolutions and a power of 55kwa is selected.

[0051] Q 剪 = V 罐 / 2 (3)

[0052] According to the calculation, the processing capacity Q 剪 of the shear liquefier 1043 in this embodiment is 16.7 m 3 / h.

[0053] To ensure that the solid fertilizer and the liquid are quickly mixed, the self-priming pump 103 is used to realize the circulation of the fertilizer in the production device during the fertilizer production process. It is required that the fertilizer mixed solution circulates in the system more than 2 times in unit time, and then the rated flow (Q 剪 , m 3 / h) of the self-priming pump 103 is calculated according to the following formula. The rated head of the self-priming pump 103 should be more than 2 times the height of the fertilizer liquefaction tank 104 to ensure that the fertilizer solution can circulate in the system. After the rated flow and the rated head of the self-priming pump 103 are determined, the self-priming pump is selected according to the model of the self-priming pump on the market.

[0054] Q 泵 = 2V 罐 (4)

[0055] According to the calculation, the rated flow of the self-priming pump 103 in this embodiment is Q 剪 is 66.7 m 3 / h.

[0056] To ensure that the system operates normally, the flow of the powder-liquid mixer 102 is set to be consistent with the rated flow of the self-priming pump 103. After the flow of the powder-liquid mixer is selected, the model and power of the powder-liquid mixer are selected according to the common powder-liquid mixer on the market.

[0057] The inner diameter of the circulation pipeline 105 connecting each part of the fertilizer blending system 1 needs to be matched with the production capacity of the fertilizer blending system. According to the economic flow velocity (V 经 ) of 1.5 m / s in the pipeline, the economic inner diameter (D, mm) of the circulation pipeline 105 is calculated according to the following formula.

[0058]

[0059] According to the calculation, the economic inner diameter of the circulation pipeline 105 in the embodiment is 125.4 mm.

[0060] As shown in Figure 5 , the fertilizer storage system 2 is mainly used for storing the high-concentration liquid fertilizer produced by the fertilizer blending system in the high-position fertilizer storage tank and providing the user with the finished liquid fertilizer when needed. The fertilizer storage system mainly includes a fertilizer storage tank 201, an operation platform 202, a maintenance staircase 203, a fertilizer discharge pump 204, and a connecting pipeline 205.

[0061] The fertilizer storage tank 201 is mainly used for storing the fertilizer produced by the fertilizer blending system. In order to ensure that the fertilizer liquid can be stored in the production workshop for a short period of time after production, the volume of the fertilizer storage tank 201 is selected according to the volume of the tank body of the fertilizer blending system, and the number is preferably more than three according to the size of the workshop. The fertilizer storage tank 201 is connected to the fertilizer blending system through the connecting pipeline 205 and is placed on the operation platform 202 to reduce the floor area occupied by the production device. One of the fertilizer storage tanks 201 is connected to the fertilizer liquefaction tank 104 of the fertilizer blending system 1 through a pipeline and can be filled with water to supply water to the fertilizer liquefaction tank 104 of the fertilizer blending system for making liquid fertilizer.

[0062] The operation platform 202 is made of metal or other building materials and is mainly used for placing the fertilizer storage tank 201.

[0063] The maintenance staircase 203 is connected to the operation platform 202 and the ground and is mainly used for personnel to go back and forth between the operation platform and the ground for related operations.

[0064] The connecting pipeline 205 is mainly used for connecting the fertilizer blending system 1 and the fertilizer storage system 2. Valves are provided on the connecting pipeline 205 for controlling the fertilizer storage process and the fertilizer discharge process of a single or multiple fertilizer storage tanks 201.

[0065] The fertilizer discharge pump 204 is located below the operation platform 202 of the fertilizer storage system, one end of which is connected to the fertilizer storage tank 201 and the other end of which is connected to the fertilizer discharge port, for quickly discharging the high-concentration liquid fertilizer in the fertilizer storage tank 201 to the external fertilizer transport container.

[0066] The method for producing concentrated liquid water-soluble fertilizer includes the following steps:

[0067] a) Fill the fertilizer storage tank 201 on the operation platform 202 with clean water, use gravity to pour water into the fertilizer liquefaction tank 104, and observe the reading of the liquid level meter 105 in real time. When the liquid level in the tank 104 reaches 1 / 3 of the tank, stop supplying water;

[0068] b) Turn on the power switch of the fertilizer preparation system, and the dust removal feeding station 101, self-priming pump 103, powder-liquid mixing machine 102, and shear liquefier 1042 in the system start working at the same time. Clean water starts circulating in the fertilizer liquefaction tank 104, powder-liquid mixing machine 102, and circulating pipeline 105 of the fertilizer preparation system;

[0069] c) From the dust removal feeding station 101, pour solid fertilizers such as urea, monoammonium phosphate, and potassium sulfate. The types and quantities of the poured fertilizers are set according to the preset target fertilizer NPK ratio;

[0070] d) From the dust removal feeding station 101, pour organic materials such as mineral humic acid. The types and quantities of the poured materials are set according to the preset target fertilizer organic fertilizer ratio;

[0071] e) From the reserved tank opening at the top of the fertilizer liquefaction tank 104, pour liquid or small solid materials such as water-soluble carbohydrates, water-soluble amino acid concentrate, and trace element set. The types and quantities of the poured materials are set according to the preset target fertilizer corresponding material or element ratio;

[0072] f) From the reserved tank opening at the top of the fertilizer liquefaction tank 104, pour defoaming agent. The defoaming agent is poured according to 1‰ of the total weight of the solid-liquid materials produced at this time.

[0073] g) After the material pouring is completed, continue to maintain system operation for 4 hours to ensure that all materials are sheared by the shear liquefier more than twice.

[0074] h) After the fertilizer preparation system is turned off, close the circulating pipeline 105 valve in the fertilizer preparation system, open the connecting pipeline valve between the fertilizer preparation system 1 and the fertilizer storage system 2 205, and pump the produced fertilizer to the fertilizer storage tank;

[0075] i) When using the fertilizer, open the fertilizer discharge pump in the fertilizer storage system 2 to quickly suck the fertilizer into the external fertilizer transport container.

Claims

1. A concentrated liquid water-soluble fertilizer production device, characterized by, The application relates to a fertilizer mixing and storing system. The fertilizer mixing system (1) is used for mixing solid fertilizer with water at high concentration to generate liquid fertilizer; the fertilizer mixing system (1) comprises a dust-removing feeding station (101), a powder-liquid mixing machine (102), a self-suction pump (103) and a fertilizer liquefying tank (104). The dust-removing feeding station (101) is used for feeding solid fertilizer into the fertilizer mixing system while ensuring that no solid particle dust is generated during the feeding process. The powder-liquid mixing machine (102) is used for rapidly mixing solid fertilizer with liquid, and the fertilizer is fully mixed through a powder-liquid dispersion mixing process in a circulating manner; the powder-liquid mixing machine (102) is connected with the fertilizer liquefying tank (104) in a circulating manner through a circulating pipeline (105) and the self-suction pump (103); the self-suction pump (103) has self-suction capacity, so that the fertilizer solution in the circulating pipeline (105) is circulated in the system, and the solubility of the solid fertilizer and the liquid is increased. The fertilizer liquefying tank (104) is used for shearing and liquefying the solid fertilizer and water solution mixture input from the circulating pipeline (105) to become high-concentration liquid fertilizer in a small molecule state. The fertilizer storing system (2) is used for storing the high-concentration liquid fertilizer produced by the fertilizer mixing system in a fertilizer storing tank at a high position, and providing the user with the produced liquid fertilizer when needed.

2. The concentrated liquid water-soluble fertilizer production apparatus according to claim 1, characterized by The dust-removing feeding station (101) comprises a feeding port (1011) on the side, a dust-removing fan (1012) on the top, a filtering device (1013), a first driving motor (1014) and a discharging port (1015) on the bottom; during the fertilizer mixing process, solid materials are manually or by a solid material filling device filled into the fertilizer mixing system (1) through the feeding port (1011); the first driving motor (1014) drives the dust-removing fan (1012) to make the feeding port (1011) and the inside of the feeding station (101) in a negative pressure state; after the fertilizer dust passes through the filtering device (1013), the dust is adsorbed on the filter element of the filtering device (1013), and other solid fertilizer enters the discharging port (1015) under the action of gravity; the dust-removing fan (1012) is provided with an impulse device; when working normally, the dust-removing fan (1012) generates negative pressure suction force; after working for a period of time, the dust-removing fan (1012) reversely rotates to generate blowing force, and the dust can fall into the discharging port (1015) again.

3. The apparatus for producing concentrated liquid water-soluble fertilizer according to claim 1, wherein The powder-liquid mixing machine (102) comprises a powder inlet (1021), a mixture inlet (1022), a mixture outlet (1023), a working cavity (1024), and a second driving motor (1025); the powder inlet (1021) of the powder-liquid mixing machine is connected with the discharge port (1015) of the dust-removing feeding station (101); the mixture inlet (1022) is connected with the fertilizer liquefying tank (104) through a pipeline; the mixture outlet (1023) is connected with the self-priming pump (103); under the action of the second driving motor (1025) in the normal working state, strong suction is generated in the working cavity (1024), solid fertilizers from the discharge port (1015) of the dust-removing feeding station (101) and liquid from the fertilizer liquefying tank (104) are sucked into the working cavity, and fast rotation is generated to realize dispersion and mixing, and then the mixture is discharged from the mixture outlet (1023).

4. The apparatus for producing concentrated liquid water-soluble fertilizer according to claim 3, wherein The fertilizer liquefying tank (104) comprises a tank body (1041), a third driving motor (1042), a shearing liquefier (1043), a tank cover (1044), a liquid level meter (1045), and a tank support structure (1046); the lower end of the tank body (1041) is in an arc-shaped funnel shape and is provided with a small opening, and is connected with the mixture inlet (1022) of the powder-liquid mixing machine (102) through a pipeline; the tank cover (1044) is connected with the mixture outlet (1023) of the powder-liquid mixing machine (102) through a pipeline, and receives the mixture of solid fertilizers and water; the liquid level meter (1045) is installed on the side of the tank body (1041), and is used for observing the depth of the liquid fertilizer mixture in the tank body (1041).

5. The apparatus for producing concentrated liquid water-soluble fertilizer according to claim 4, wherein The shearing liquefier (1043) comprises a shearing liquefier head (1043-1), a central shaft (1043-2), and a support rod (1043-3); the shearing liquefier head (1043-1) comprises a stator (1043-1-1) and a rotor (1043-1-2), the rotor (1043-1-2) is connected with the third driving motor (1042) through the central shaft (1043-2); the rotor (1043-1-2) has blades, and drives the fertilizer mixture to rotate at high speed under the driving of the third driving motor (1042); a gap is arranged between the stator (1043-1-1) and the rotor (1043-1-2), the fertilizer mixture can collide between the stator (1043-1-1) and the rotor (1043-1-2) under the driving of the rotor (1043-1-2), and shearing occurs to process the material to the micron level; the rotor (1043-1-2) forms a negative pressure vortex during operation, and continuously sucks the lower material into the rotor cavity; small holes are arranged on the stator (1043-1-1), the material is thrown out of the negative pressure vortex under the action of centrifugal force, the material mixture is more uniform, and the finished product is prevented from being deposited.

6. The concentrated liquid water-soluble fertilizer production apparatus according to claim 4, wherein A gap is left between the tank cover (1044) and the tank body (1041) for adding part of the liquid nutrient fertilizer; the tank support structure (1046) is used for supporting the tank structure.

7. The apparatus for producing concentrated liquid water-soluble fertilizer according to claim 1, wherein The fertilizer storage system (2) comprises a fertilizer storage tank (201), an operation table (202), a maintenance staircase (203), a fertilizer discharge pump (204) and a connecting pipeline (205); The fertilizer storage tank (201) is used for storing the fertilizer produced by the fertilizer preparation system; the fertilizer storage tank (201) has a plurality of; the fertilizer storage tank (201) is connected with the fertilizer preparation system (1) through the connecting pipeline (205) and is placed on the operation table (202); one of the fertilizer storage tanks (201) is connected with the fertilizer liquefying tank (104) of the fertilizer preparation system (1) through a pipeline, and water is supplied to the fertilizer liquefying tank (104) after being filled with water, for use in preparing liquid fertilizer; The operation table (202) is used for placing the fertilizer storage tank (201); The maintenance staircase (203) is connected with the operation table (202) and the ground; The connecting pipeline (205) is used for connecting the fertilizer preparation system (1) and the fertilizer storage system (2); a valve is arranged on the connecting pipeline (205) and is used for controlling the storage process and the discharge process of the single or multiple fertilizer storage tanks (201); The fertilizer discharge pump (204) is located below the operation table (202) of the fertilizer storage system, one end of which is connected with the fertilizer storage tank (201) and the other end of which is connected with a fertilizer discharge port, and is used for quickly discharging the high-concentration liquid fertilizer in the fertilizer storage tank (201) to an external fertilizer transport container.

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