Preparation equipment and process of liquid fertilizer

Abstract

The invention discloses preparation equipment and process of a liquid fertilizer, and belongs to the field of liquid fertilizer production. The preparation equipment of the liquid fertilizer comprises a material mixing box, a first stirring shaft and a second stirring shaft, the first stirring shaft and the second stirring shaft are used for mixing raw materials in the material mixing box, the first stirring shaft and the second stirring shaft are in transmission connection, and the preparation equipment of the liquid fertilizer further comprises a discharging hopper used for throwing powdery raw materials into the material mixing box, and the discharging hopper is arranged at the top in the material mixing box; the liquid injection box is used for injecting a mixed solution into the material mixing box, the liquid injection box is arranged on one side of the top of the material mixing box, and the liquid injection box is communicated with the material mixing box; liquid raw materials and powdery raw materials in the material mixing box are fully stirred, the stirring area is enlarged, meanwhile, the stirring kinetic energy is improved, and the stirring and mixing effect is further improved; according to the liquid fertilizer feeding device, feeding is carried out in stages, incomplete reaction of raw materials caused by one-time feeding is avoided, non-uniform stirring of the raw materials caused by one-time feeding is avoided, and therefore the liquid fertilizer with high quality is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of liquid fertilizer production, and in particular to a preparation device and process for liquid fertilizer. Background Art

[0002] Liquid fertilizers include clear liquid type, suspension type and paste type. As a new type of high-efficiency compound fertilizer, it has the following advantages: 1. Easy to absorb and quick effect; 2. Dissolve and dilute without cooling, and it is easy to be evenly distributed in the soil after application. Unlike solid fertilizers, concentrated fertilization forms local high salt content and is not easy to frostbite roots and seedlings; 3. It can be sprayed, dripped or watered, which is convenient to use, cost-saving and quick to achieve results; 4. It can be mixed with pesticides, fungicides and herbicides and can be mixed evenly; 5. It will not produce segregation and uneven quality during storage and transportation like solid fertilizers; 6. The product does not have the problem of moisture absorption and agglomeration; 7. There will be no dust or smoke in production and application, and there is less pollution. Therefore, liquid fertilizer is one of the development trends of the world's fertilizer industry today. With the rapid development of the fertilizer industry, the development trend of high-concentration, liquid, compound and slow-release fertilizers is becoming more and more obvious. In particular, in some agriculturally developed countries, such as the United States, Israel, Japan, Canada, etc., almost half of them are mainly developing high-concentration liquid compound fertilizers. According to relevant information, generally speaking, every 10% increase in fertilizer concentration can reduce the cost of fertilizer packaging, storage, transportation and management by about 20%.

[0003] In the prior art, the preparation of liquid fertilizer requires a large number of raw materials, most of which are manually fed multiple times, which not only wastes time but also consumes a lot of manpower; if the raw materials (solution and powder) are thrown into the mixing box at the same time, uneven mixing is likely to occur, which eventually leads to precipitation and affects the quality of the liquid fertilizer. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the preparation of liquid fertilizer in the prior art requires a large number of raw materials, most of which are manually fed multiple times, which not only wastes time but also consumes a lot of labor; if the raw materials (solution and powder) are thrown into a mixing box at the same time, uneven mixing is likely to occur, which eventually leads to precipitation and affects the quality of the liquid fertilizer. A preparation device and process for liquid fertilizer are proposed to solve the problem that the preparation of liquid fertilizer in the prior art requires a large number of raw materials, most of which are manually fed multiple times, which not only wastes time but also consumes a lot of labor; if the raw materials (solution and powder) are thrown into a mixing box at the same time, uneven mixing is likely to occur, which eventually leads to precipitation and affects the quality of the liquid fertilizer.

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

[0006] A preparation device for liquid fertilizer comprises a mixing box, a first stirring shaft and a second stirring shaft for mixing raw materials in the mixing box, the first stirring shaft and the second stirring shaft are transmission-connected, and further comprises: a lower hopper for throwing powdered raw materials into the mixing box, the lower hopper is arranged at the top of the mixing box; and a liquid injection box for injecting a mixed solution into the mixing box, the liquid injection box is arranged on one side of the top of the mixing box, and the liquid injection box and the mixing box are connected.

[0007] Preferably, a driving assembly is fixedly installed on the top of the mixing box, and the driving assembly includes a motor. The output shaft end of the motor and the top end of the first stirring shaft are fixedly installed with synchronous pulleys, and a synchronous belt is arranged between the two sets of synchronous pulleys.

[0008] In order to increase the mixing area in the mixing box, further, blades are fixedly installed at the bottom ends of the first stirring shaft and the second stirring shaft, a sieve plate is arranged below the blades in the mixing box, and second bevel gears are fixedly installed at the top ends of the first stirring shaft and the second stirring shaft.

[0009] Preferably, a transmission shaft is rotatably mounted on the top of the mixing box through a bearing seat, first bevel gears are fixedly mounted on both ends of the transmission shaft, the first bevel gear is meshed with the second bevel gear, and an eccentric wheel is arranged on the surface of the transmission shaft.

[0010] In order to provide a buffer for the rotating structure of the transmission shaft at the top of the mixing box and avoid collision between the eccentric wheel and other structures, further, a connecting shaft is slidably connected to the bottom of the bearing seat, a bracket is provided on the top of the mixing box, two groups of ear plates are symmetrically provided on the upper surface of the bracket, support blocks are pinned between the ear plates, the connecting shaft and the bottom end are fixedly connected to the support block, and a first spring is connected between the support block and the bearing seat.

[0011] Preferably, a driving assembly is provided on the top of the lower hopper, and the driving assembly includes a cross beam, the outer ring of the eccentric wheel and the upper surface of the cross beam are arranged in a close fit, two groups of guide rods are symmetrically provided on the bottom surface of the cross beam, a mounting plate is slidably provided on one side of the bearing seat, a second spring is provided between the mounting plate and the cross beam, a push rod is provided at the bottom of the cross beam, an adjusting sleeve is rotatably connected to the bottom of the push rod, a screw is threadedly connected to the bottom of the adjusting sleeve, and the screw is slidably inserted through a limit rod and the push rod.

[0012] Preferably, there are partitions in an equidistant array in the lower hopper, and the partitions divide the lower hopper into a plurality of chambers. A lowering hole is opened at the bottom of the chamber, and a hole plug is elastically arranged in the lowering hole, and the hole plug can be pushed away from the hole plug when the push rod moves downward.

[0013] In order to ensure that the push rod can be opened and reset during the up and down movement, the top of the hole plug is fixedly connected to a pressure rod, the top of the pressure rod is fixedly connected to a balance plate, and a third spring is symmetrically arranged between the balance plate and the bottom surface of the lower hopper.

[0014] Preferably, a piston plate is provided in the liquid injection box, a piston rod is fixedly connected to one side of the piston plate, the piston rod is slidably connected to one side of the liquid injection box, one end of the piston rod is fixedly connected to a support, a roller is provided in the support, the roller and the outer ring of the eccentric wheel are fitted together, a fourth spring is provided between the support and the outer wall of the liquid injection box and on the surface of the piston rod, a one-way valve is provided on the top of the liquid injection box, a liquid outlet pipe is provided at the bottom of the liquid injection box, and a pressure valve is provided in the liquid outlet pipe.

[0015] The present invention provides a process comprising the following steps:

[0016] Step 1: Prepare the raw materials, throw the powdered raw materials into the multiple chambers in the lower hopper, and pour the solution raw materials into the injection box;

[0017] Step 2: Start the motor to drive the first stirring shaft and the second stirring shaft to rotate;

[0018] Step 3: The rotation of the transmission shaft drives the eccentric wheel to rotate, and the rotation of the eccentric wheel drives the top rod to reciprocate up and down, thereby pushing the hole plug at the bottom of the lower hopper, and evenly and simultaneously putting different raw materials into the mixing box;

[0019] Step 4: The rotation of the transmission shaft drives the eccentric wheel to rotate, pushing the piston rod and the piston plate to move back and forth in the liquid injection box, pouring the solution raw materials into the mixing box through the liquid outlet pipe, and driving the blades through the first stirring shaft and the second stirring shaft to stir all the raw materials in the mixing box to prepare liquid fertilizer.

[0020] Compared with the prior art, the present invention provides a liquid fertilizer preparation device, which has the following beneficial effects:

[0021] 1. The liquid fertilizer preparation equipment, by respectively arranging a first stirring shaft and a second stirring shaft in the mixing box to drive the blades at the bottom thereof to fully stir the liquid raw material and the powdered raw material in the mixing box, not only increases the stirring area, but also increases the stirring kinetic energy, further improving the stirring and mixing effect;

[0022] 2. The liquid fertilizer preparation equipment drives the transmission shaft between the first stirring shaft and the second stirring shaft, and uses the eccentric wheel on the surface of the transmission shaft to drive the push rod to move up and down, thereby driving the hole plug to move up and down in the feeding hole, and controlling the opening and closing of the feeding hole in stages, so as to perform staged feeding, avoid incomplete raw material reaction caused by one-time feeding, and thus obtain liquid fertilizer with higher quality;

[0023] 3. The liquid fertilizer preparation equipment drives the piston rod to move back and forth in the liquid injection box by setting an eccentric wheel, thereby driving the piston plate to perform phased infusion of the liquid raw material in the liquid injection box, effectively avoiding uneven stirring of the raw materials caused by one-time feeding, thereby obtaining liquid fertilizer of higher quality.

[0024] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention fully stirs the liquid raw materials and powdered raw materials in the mixing box, which not only increases the stirring area, but also improves the stirring kinetic energy, further improving the stirring and mixing effect; the material is fed in stages to avoid incomplete raw material reaction caused by one-time feeding, and avoid uneven raw material mixing caused by one-time feeding, thereby obtaining liquid fertilizer with higher quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a liquid fertilizer preparation device proposed by the present invention;

[0026] Figure 2 A liquid fertilizer preparation device proposed by the present invention Figure 1 The enlarged structural diagram of part A in the middle;

[0027] Figure 3 A partially cutaway three-dimensional structural schematic diagram of a liquid fertilizer preparation device proposed by the present invention;

[0028] Figure 4 A schematic cross-sectional view of a liquid injection box of a liquid fertilizer preparation device proposed by the present invention;

[0029] Figure 5 A partial cross-sectional structural schematic diagram of a lower hopper of a liquid fertilizer preparation device proposed by the present invention;

[0030] Figure 6 A liquid fertilizer preparation device proposed by the present invention Figure 5 The enlarged structural diagram of part B in the middle;

[0031] Figure 7 A liquid fertilizer preparation device proposed by the present invention Figure 5 The enlarged structural diagram of the middle C part;

[0032] Figure 8 The present invention provides a schematic diagram of a mandrel length adjustment structure for a liquid fertilizer preparation device.

[0033] In the figure: 1, mixing box; 2, lower hopper; 3, injection box; 4, first stirring shaft; 5, motor; 6, synchronous pulley; 7, second stirring shaft; 8, transmission shaft; 9, first bevel gear; 10, second bevel gear; 11, eccentric wheel; 12, partition; 13, blade; 14, bearing seat; 15, bracket; 16, ear plate; 17, support block; 18, first spring; 19, connecting shaft; 20, sieve plate; 21, roller; 22, support; 23, piston rod; 24, one-way valve; 25, piston plate; 26, liquid outlet pipe; 27, pressure valve; 28, crossbeam; 29, guide rod; 30, second spring; 31, mounting plate; 32, pressure rod; 33, balance plate; 34, third spring; 35, hole plug; 36, adjusting sleeve; 37, push rod; 38, limit rod; 39, screw; 40, fourth spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Example:

[0037] Reference Figure 1-Figure 8 A liquid fertilizer preparation device includes a mixing box 1, a first stirring shaft 4 and a second stirring shaft 7 for mixing raw materials in the mixing box 1, and the first stirring shaft 4 and the second stirring shaft 7 are transmission-connected.

[0038] In this embodiment, by connecting the transmission shaft 8 to one end of the first stirring shaft 4 and the second stirring shaft 7, the first stirring shaft 4 and the second stirring shaft 7 can be driven simultaneously to stir in the mixing box 1, thereby increasing the volume of stirring and mixing and improving the mixing efficiency and mixing effect of the raw materials.

[0039] A driving assembly is fixedly installed on the top of the mixing box 1, and the driving assembly includes a motor 5. A synchronous pulley 6 is fixedly installed on the output shaft end of the motor 5 and the top of the first stirring shaft 4. A synchronous belt is arranged for transmission between the two sets of synchronous pulleys 6. A second bevel gear 10 is fixedly installed on the top of the first stirring shaft 4 and the second stirring shaft 7. A transmission shaft 8 is rotatably installed on the top of the mixing box 1 through a bearing seat 14. First bevel gears 9 are fixedly installed on both ends of the transmission shaft 8. The first bevel gear 9 and the second bevel gear 10 are meshed. Blades 13 are fixedly installed on the bottom ends of the first stirring shaft 4 and the second stirring shaft 7.

[0040] Specifically, the motor 5 is started to drive the synchronous pulley 6 at its output shaft end, and the first stirring shaft 4 is driven to rotate through the transmission of the two sets of synchronous pulleys 6. The second bevel gear 10 at one end of the first stirring shaft 4 engages with the first bevel gear 9 at one end of the transmission shaft 8 to drive the transmission shaft 8 to rotate. The first bevel gear 9 at the other end of the transmission shaft 8 and the second bevel gear 10 at one end of the second stirring shaft 7 engage to drive the second stirring shaft 7 to rotate, so that the first stirring shaft 4 and the second stirring shaft 7 simultaneously drive the blades 13 to rotate in the mixing box 1, so as to mix the raw materials in the mixing box 1.

[0041] A sieve plate 20 is provided below the blades 13 in the mixing box 1 .

[0042] It should be noted that a sieve plate 20 is provided in the mixing box 1, which can screen out undissolved large particles of raw materials when obtaining the liquid fertilizer product, so as to ensure the purity of the liquid fertilizer product.

[0043] This embodiment also includes a lower hopper 2 for throwing powdered raw materials into the mixing box 1, and the lower hopper 2 is arranged at the top of the mixing box 1;

[0044] There are partitions 12 arranged in an equidistant array in the lower hopper 2, and the partitions 12 divide the lower hopper 2 into a plurality of chambers. A discharge hole is provided at the bottom of the chamber, and a hole plug 35 is elastically provided in the discharge hole. When the push rod 37 moves downward, the hole plug 35 can be pushed away from the hole plug 35.

[0045] In this embodiment, five groups of partitions 12 are arranged in the hopper 2, and the partitions 12 are used to divide the hopper 2 into six cavities, which can hold multiple groups of raw material powders and increase the types of material discharge of the equipment. The bottom of the hopper 2 is located at the bottom of each group of cavities and a discharge hole is opened. A hole plug 35 is arranged in the discharge hole. The hole plug 35 is moved up and down to control the opening and closing of the discharge hole, thereby realizing intermittent batch discharge.

[0046] A pressure rod 32 is fixedly connected to the top of the hole plug 35 , a balance plate 33 is fixedly connected to the top of the pressure rod 32 , and a third spring 34 is symmetrically arranged between the balance plate 33 and the inner bottom surface of the lower hopper 2 .

[0047] A balance plate 33 and a third spring 34 are provided between the hole plug 35 and the bottom of the discharge hopper 2 to ensure that after the external force is eliminated, the hole plug 35 can be reset in time after being disengaged to close the discharge hole.

[0048] A driving assembly is arranged on the top of the lower hopper 2, and the driving assembly includes a cross beam 28, two sets of guide rods 29 are symmetrically arranged on the bottom surface of the cross beam 28, a mounting plate 31 is slidably arranged on one side of the bearing seat 14, a second spring 30 is arranged between the mounting plate 31 and the cross beam 28, and a top rod 37 is arranged at the bottom of the cross beam 28.

[0049] In this embodiment, external force presses the cross beam 28 downward, and a push rod 37 is connected to the bottom of the cross beam 28. After the push rod 37 moves downward, the hole plug 35 set at the bottom of the lower hopper 2 can be pushed out of the lower hole, and the powdered raw material in the lower hopper 2 can fall into the mixing box 1 in a certain amount. Each time the push rod 37 moves downward, it can be partially released and the raw material can be evenly put into the mixing box 1 to avoid uneven mixing caused by a large amount of raw materials being put in at one time.

[0050] It should be noted that since the material is discharged in batches, the push rod 37 needs to be reset after moving down. At this time, when the external force disappears, the second spring 30 acts to lift the mounting plate 31, thereby driving the ear plate 16 and the push rod 37 to move upward, and the hole plug 35 is reset to block the discharge hole, thereby terminating the discharge. When the external force is applied again, the above operation is repeated to achieve uniform discharge in batches.

[0051] The bottom of the push rod 37 is rotatably connected to the adjusting sleeve 36 , and the bottom of the adjusting sleeve 36 is threadedly connected to the screw rod 39 , which is slidably plugged into the push rod 37 through the limiting rod 38 .

[0052] In this embodiment, an adjusting sleeve 36 and a screw rod 39 that can adjust the length are provided at the bottom of the push rod 37, and a limiting rod 38 is provided between the screw rod 39 and the push rod 37. The adjusting sleeve 36 is rotated, and the threaded connection structure of the adjusting sleeve 36 and the screw rod 39 is utilized in cooperation with the limiting rod 38 to limit and guide the screw rod 39. Therefore, the rotation of the adjusting sleeve 36 can adjust the distance between the screw rod 39 and the push rod 37, thereby adjusting the length of the push rod 37, and can control the discharge gap between the hole plug 35 and the discharge hole as needed, thereby controlling the discharge dosage to meet the quantitative delivery needs of the raw materials.

[0053] It should be noted that after the hole plug 35 moves downward, the separation distance between the hole plug 35 and the material discharge hole, i.e., the material discharge space, can control the dosage of the material discharge.

[0054] An eccentric wheel 11 is disposed on the surface of the transmission shaft 8 , and the outer ring of the eccentric wheel 11 is fitted to the upper surface of the cross beam 28 .

[0055] In this embodiment, the rotation of the transmission shaft 8 is utilized to drive the eccentric wheel 11 to rotate, and the eccentric structure of the eccentric wheel 11 is utilized to drive the cross beam 28 to move up and down, which serves as an external force to control the discharge hopper 2 to discharge materials evenly.

[0056] A connecting shaft 19 is slidably connected to the bottom of the bearing seat 14, a bracket 15 is arranged on the top of the mixing box 1, two groups of ear plates 16 are symmetrically arranged on the upper surface of the bracket 15, and a support block 17 is pinned between the ear plates 16. The connecting shaft 19 is fixedly connected to the bottom end and the support block 17, and a first spring 18 is connected between the support block 17 and the bearing seat 14.

[0057] In this embodiment, an elastic connection component is arranged between the two sets of bearing seats 14 for supporting the transmission shaft 8 and the mixing box 1. The elastic connection component includes a support block 17 and a first spring 18. During the rotation of the transmission shaft 8, the elastic connection component is utilized to drive the transmission shaft 8 to vibrate during the rotation. The vibration frequency can make the force of the eccentric wheel 11 and the discharge force of the discharge hopper 2 have the same frequency, thereby reducing the friction between the mechanical structures.

[0058] This embodiment further includes a liquid injection box 3 for injecting a mixed solution into the mixing box 1 . The liquid injection box 3 is disposed on one side of the top of the mixing box 1 , and the liquid injection box 3 and the mixing box 1 are connected.

[0059] In this embodiment, a liquid injection box 3 is arranged on one side of the mixing box 1 , and the liquid injection box 3 is used to store liquid raw materials for producing liquid fertilizers, so as to facilitate staged injection into the mixing box 1 .

[0060] A piston plate 25 is arranged in the liquid injection box 3, and a piston rod 23 is fixedly connected to one side of the piston plate 25. The piston rod 23 is slidably connected to one side of the liquid injection box 3. One end of the piston rod 23 is fixedly connected to a support 22. A roller 21 is arranged in the support 22. The roller 21 and the outer ring of the eccentric wheel 11 are fitted together. A fourth spring 40 is sleeved on the surface of the piston rod 23 and between the support 22 and the outer wall of the liquid injection box 3. A one-way valve 24 is arranged on the top of the liquid injection box 3, and a liquid outlet pipe 26 is arranged at the bottom of the liquid injection box 3. A pressure valve 27 is arranged in the liquid outlet pipe 26.

[0061] Specifically, when the liquid raw material starts to be poured, the pressure valve 27 is opened. When the transmission shaft 8 rotates, the eccentric wheel 11 is driven to rotate. The eccentric structure of the eccentric wheel 11 is used to push the piston rod 23 to move into the liquid injection box 3, driving the piston plate 25 to squeeze the solution cavity, and the liquid raw material is poured into the mixing box 1 through the liquid outlet pipe 26. When the high position of the eccentric wheel 11 rotates to a side away from the liquid injection box 3, the fourth spring 40 on the surface of the piston rod 23 drives one end of the roller 21 of the piston rod 23 to slide out against the eccentric wheel 11, driving the piston plate 25 to reset, and the liquid outlet pipe 26 no longer discharges the liquid raw material, thereby performing the material discharge process in sections, so that the liquid raw material and the powdered raw material poured into the mixing box 1 are mixed in small amounts at intervals, thereby ensuring uniform mixing during the preparation of the liquid fertilizer.

[0062] It should be noted that the piston plate 25 divides the liquid injection box 3 into an air chamber and a solution chamber, the one-way valve 24 is connected to the air chamber, and the liquid outlet pipe 26 is connected to the solution chamber, ensuring that the piston plate 25 slides in the mixing box 1 and can squeeze and inject the liquid raw material into the mixing box 1 in stages.

[0063] In the present invention, the motor 5 is started to drive the synchronous pulley 6 at the output shaft end thereof, and the first stirring shaft 4 and the second stirring shaft 7 are driven to rotate at both sides of the mixing box 1 at the same time through the transmission of the two sets of synchronous pulleys 6 and the first bevel gear 9 and the second bevel gear 10 meshing with each other, so that the first stirring shaft 4 and the second stirring shaft 7 simultaneously drive the blades 13 to rotate in the mixing box 1, mix the raw materials in the mixing box 1, increase the mixing volume, and improve the mixing efficiency and mixing effect of the raw materials;

[0064] The second bevel gear 10 at one end of the first stirring shaft 4 meshes with the first bevel gear 9 at one end of the transmission shaft 8 to drive the transmission shaft 8 to rotate, and drive the eccentric wheel 11 to rotate. The high position of the eccentric wheel 11 rotates downward to press the crossbeam 28 downward. A push rod 37 is connected to the bottom of the crossbeam 28. After the push rod 37 moves downward, the hole plug 35 set at the bottom of the lower hopper 2 can be pushed out of the discharge hole, and the powdered raw material in the lower hopper 2 can fall into a certain dose in the mixing box 1. As the eccentric wheel 11 rotates, the second spring 30 acts to lift the mounting plate 31, thereby driving the mounting plate 31 and the push rod 37 to move upward, and the hole plug 35 is reset to block the discharge hole, and the discharge is terminated; when the external force is applied again, the above operation is repeated to achieve uniform discharge in batches, and avoid uneven mixing caused by a large amount of raw materials added at one time;

[0065] The eccentric structure of the eccentric wheel 11 is utilized to push the piston rod 23 to move into the liquid injection box 3, driving the piston plate 25 to squeeze the solution cavity, and the liquid raw material is poured into the mixing box 1 through the liquid outlet pipe 26. When the high position of the eccentric wheel 11 rotates to the side away from the liquid injection box 3, the fourth spring 40 on the surface of the piston rod 23 drives one end of the roller 21 of the piston rod 23 to slide out in contact with the eccentric wheel 11, driving the piston plate 25 to reset, and the liquid outlet pipe 26 no longer discharges the liquid raw material, thereby performing the material discharge processing in sections, so that the liquid raw material and the powdered raw material poured into the mixing box 1 are mixed in small amounts at intervals, thereby ensuring uniform mixing during the preparation of the liquid fertilizer.

[0066] The present invention also provides a process comprising the following steps:

[0067] Step 1: prepare raw materials, throw the powdered raw materials into multiple chambers in the lower hopper 2, and pour the solution raw materials into the injection box 3;

[0068] Step 2: Start the motor 5 to drive the first stirring shaft 4 and the second stirring shaft 7 to rotate;

[0069] Step 3: The transmission shaft 8 rotates to drive the eccentric wheel 11 to rotate, and the rotation of the eccentric wheel 11 drives the top rod 37 to reciprocate up and down, thereby pushing the hole plug 35 at the bottom of the lower hopper 2, and evenly and simultaneously putting different raw materials into the mixing box 1;

[0070] Step 4: The transmission shaft 8 rotates to drive the eccentric wheel 11 to rotate, pushing the piston rod 23 and the piston plate 25 to move back and forth in the liquid injection box 3, and injecting the solution raw material into the mixing box 1 through the liquid outlet pipe 26. The first stirring shaft 4 and the second stirring shaft 7 drive the blades 13 to stir all the raw materials in the mixing box 1 to prepare liquid fertilizer.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid fertilizer preparation device, comprising a mixing box (1), a first stirring shaft (4) and a second stirring shaft (7) for mixing raw materials in the mixing box (1), characterized in that: The first stirring shaft (4) and the second stirring shaft (7) are in transmission connection; Also includes: A lower hopper (2) for throwing powdered raw materials into the mixing box (1), wherein the lower hopper (2) is arranged at the top of the mixing box (1); A liquid injection box (3) is used for injecting a mixed solution into a mixing box (1); the liquid injection box (3) is arranged on one side of the top of the mixing box (1), and the liquid injection box (3) and the mixing box (1) are connected.

2. The liquid fertilizer preparation device according to claim 1, characterized in that: A driving assembly is fixedly mounted on the top of the mixing box (1), and the driving assembly comprises a motor (5). A synchronous pulley (6) is fixedly mounted on the output shaft end of the motor (5) and the top end of the first stirring shaft (4), and a synchronous belt is arranged between the two sets of the synchronous pulleys (6) for transmission.

3. The liquid fertilizer preparation device according to claim 2, characterized in that: Blades (13) are fixedly mounted at the bottom ends of the first stirring shaft (4) and the second stirring shaft (7), and a sieve plate (20) is arranged below the blades (13) in the mixing box (1).

4. The liquid fertilizer preparation device according to claim 3, characterized in that: A transmission shaft (8) is rotatably mounted on the top of the mixing box (1) via a bearing seat (14); first bevel gears (9) are fixedly mounted on both ends of the transmission shaft (8); second bevel gears (10) are fixedly mounted on the tops of the first stirring shaft (4) and the second stirring shaft (7); the first bevel gear (9) and the second bevel gear (10) are meshed; and an eccentric wheel (11) is disposed on the surface of the transmission shaft (8).

5. The liquid fertilizer preparation device according to claim 4, characterized in that: The bottom of the bearing seat (14) is slidably connected with a connecting shaft (19), the top of the mixing box (1) is provided with a bracket (15), the upper surface of the bracket (15) is symmetrically provided with two groups of ear plates (16), a support block (17) is pinned between the ear plates (16), the connecting shaft (19) and the bottom end are fixedly connected with the support block (17), and a first spring (18) is connected between the support block (17) and the bearing seat (14).

6. The liquid fertilizer preparation device according to claim 5, characterized in that: A driving assembly is arranged at the top of the lower hopper (2), and the driving assembly comprises a cross beam (28). The outer ring of the eccentric wheel (11) and the upper surface of the cross beam (28) are arranged in a close fit, and two groups of guide rods (29) are symmetrically arranged on the bottom surface of the cross beam (28). A mounting plate (31) is slidably arranged on one side of the bearing seat (14), and a second spring (30) is arranged between the mounting plate (31) and the cross beam (28). A push rod (37) is arranged at the bottom of the cross beam (28), and an adjusting sleeve (36) is rotatably connected to the bottom of the push rod (37), and a screw (39) is threadedly connected to the bottom of the adjusting sleeve (36), and the screw (39) is slidably plugged through the limit rod (38) and the push rod (37).

7. The liquid fertilizer preparation device according to claim 6, characterized in that: The lower hopper (2) is provided with partitions (12) arranged in an equidistant array, the partitions (12) dividing the lower hopper (2) into a plurality of chambers, the bottom of each chamber being provided with a lowering hole, a hole plug (35) being elastically provided in the lowering hole, and the hole plug (35) can be pushed away from the hole plug (35) when the push rod (37) moves downward.

8. The liquid fertilizer preparation device according to claim 7, characterized in that: The top of the hole plug (35) is fixedly connected to a pressure rod (32), the top of the pressure rod (32) is fixedly connected to a balance plate (33), and a third spring (34) is symmetrically arranged between the balance plate (33) and the inner bottom surface of the lower hopper (2).

9. The liquid fertilizer preparation device according to claim 1, characterized in that: A piston plate (25) is arranged in the liquid injection box (3), one side of the piston plate (25) is fixedly connected to a piston rod (23), the piston rod (23) is slidably connected to one side of the liquid injection box (3), one end of the piston rod (23) is fixedly connected to a support (22), a roller (21) is arranged in the support (22), the roller (21) and the outer ring of the eccentric wheel (11) are arranged in a close fit, a fourth spring (40) is arranged between the support (22) and the outer wall of the liquid injection box (3) and on the surface of the piston rod (23), a one-way valve (24) is arranged at the top of the liquid injection box (3), a liquid outlet pipe (26) is arranged at the bottom of the liquid injection box (3), and a pressure valve (27) is arranged in the liquid outlet pipe (26).

10. A process comprising a liquid fertilizer preparation device according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Prepare raw materials, throw the powdered raw materials into multiple chambers in the lower hopper (2) respectively, and pour the solution raw materials into the injection box (3); Step 2: Start the motor (5) to drive the first stirring shaft (4) and the second stirring shaft (7) to rotate; Step 3: The transmission shaft (8) rotates to drive the eccentric wheel (11) to rotate, and the rotation of the eccentric wheel (11) drives the top rod (37) to reciprocate up and down, thereby pushing the hole plug (35) at the bottom of the lower hopper (2), and evenly and simultaneously putting different raw materials into the mixing box (1); Step 4: The transmission shaft (8) rotates to drive the eccentric wheel (11) to rotate, pushing the piston rod (23) and the piston plate (25) to move back and forth in the liquid injection box (3), injecting the solution raw material into the mixing box (1) through the liquid outlet pipe (26), and driving the blades (13) through the first stirring shaft (4) and the second stirring shaft (7) to stir all the raw materials in the mixing box (1) to prepare liquid fertilizer.

Images