Stable fertilizer distributor and fertilizing equipment

Abstract

The invention provides a stable fertilizer distributor and fertilizing equipment, and relates to the technical field of agricultural mechanical equipment. The stable fertilizer distributor comprises a buffer tank and a distributor main body, the buffer tank is provided with an inlet and an outlet, and the inlet of the buffer tank is communicated with the fertilizer discharge port of the tank body through a main fertilization pipe; the distributor main body comprises a distributor cavity, a rotating shaft, a rotary driving device and a fluid controller, and the distributor cavity is arranged below the buffer tank and located at the upper part of the rack component; an inlet is formed in the top of the distributor cavity, and the inlet of the distributor cavity is communicated with the outlet of the buffer tank. According to the stable fertilizer distributor, the cutting knife is arranged on at least one side of the spiral blade and is used for cutting solid substances in a fertilizer, so that the crushed solid substances can flow out through the outlet of the distributor cavity, and the stable fertilizer distributor can be suitable for liquid organic fertilizers with complex physical properties; and the liquid organic fertilizer is uniformly output from the outlet of the distributor cavity through the rotation of the spiral blade.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery and equipment, and in particular to a fertilizer stabilizing distributor and fertilizing equipment. Background Art

[0002] my country produces 127 million tons of wheat straw annually. Biogas projects include straw as a raw material for anaerobic fermentation, which has promoted the use of straw to a certain extent. Biogas residues and liquid manure contain the nutrients required for plant growth, and are rich in organic matter that is beneficial to soil improvement and small molecules that are easily absorbed by plants. They have the advantages of being easy to formulate fertilization and mechanized application. Therefore, using biogas residues as fertilizers is currently the main way to use biogas residues. However, the following problems still exist. On the one hand, the biogas liquid contains fiber solids, gravel, etc., which can easily cause blockage of the fertilizer outlet; on the other hand, there is a lack of liquid fertilizer distributors that can distribute fertilizers efficiently and evenly and discharge fertilizers stably. Summary of the invention

[0003] The invention provides a fertilizer stable distributor, which is used to solve the problems in the prior art that a fertilizer discharge port is easily blocked and the liquid fertilizer distributor has poor stability.

[0004] The present invention provides a fertilizer stabilizing distributor, comprising: A buffer box, wherein the buffer box is provided with an inlet and an outlet, and the inlet of the buffer box is connected with the fertilizer discharge port of the tank body through a fertilizer main pipe; A distributor body, the distributor body comprising a distributor cavity, a rotating shaft, a rotating drive device and a fluid controller, the distributor cavity being arranged below the buffer tank and located at the upper part of the frame component; an inlet is arranged at the top of the distributor cavity, the inlet of the distributor cavity is connected to the outlet of the buffer tank, a plurality of outlets are arranged at the bottom of the distributor cavity, the plurality of outlets of the distributor cavity are arranged at intervals along a direction perpendicular to the movement of the tank body, and a filter is arranged at the outlet of the distributor cavity; connecting components are arranged at both ends of the distributor cavity, the rotating shaft is arranged inside the distributor cavity, and the two ends of the rotating shaft correspond one-to-one to the two connecting components Rotational connection, the rotary drive device is connected to one end of the rotating shaft and to the distributor cavity; the outer peripheral surface of the rotating shaft is provided with a spiral blade extending spirally along the length direction of the rotating shaft, and the edge of the spiral blade is provided with a cutting knife, and the cutting knife is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity; the inlet of the fluid controller is connected to the outlet of the distributor cavity, and the outlet of the fluid controller is connected to the upper port of the fertilizer pipe through a fertilizer hose, and the fluid controller is used to provide a gas-liquid buffer zone during the fertilizer discharge process at the outlet of the distributor cavity, thereby reducing the pulsation shock caused by the airflow.

[0005] According to a fertilizer stabilizing distributor provided by the present invention, the cutting blade comprises: A base, the base being connected to the spiral blade; A plurality of blades are arranged at intervals on a side of the base away from the spiral blade, a cutting edge is formed on a side of the blade away from the base, and a cutting edge slope is formed between the cutting edge and the side edge of the blade.

[0006] According to a fertilizer stabilizing distributor provided by the present invention, the length and width of each blade are equal, and the distance between two adjacent blades is equal.

[0007] According to a fertilizer stabilizing distributor provided by the present invention, the cutting edge slope is 25-30°.

[0008] According to a fertilizer stabilizing distributor provided by the present invention, a plurality of flow channel units connected in sequence are arranged inside the fluid controller, the cross-sectional area of ​​the flow channel unit gradually decreases from top to bottom, an arc-shaped guide surface is formed on the upper part of the side wall of the flow channel unit, the arc-shaped guide surface extends to the inlet of the flow channel unit, a guide block is arranged inside the flow channel unit, and the guide block is spaced apart from two opposite side walls of the flow channel unit.

[0009] According to a fertilizer stabilizing distributor provided by the present invention, the connecting assembly comprises: Connecting flanges, both ends of the distributor cavity are provided with fixing flanges, the connecting flanges are connected to the corresponding fixing flanges, and the connecting flanges and the fixing flanges are both provided with axial holes; The bearing seat is arranged on the side of the connecting flange away from the fixed flange. The two ends of the rotating shaft pass through the corresponding fixed flange and the connecting flange and then rotate with the corresponding bearing seat through bearings.

[0010] According to a fertilizer stabilizing distributor provided by the present invention, the connecting assembly further comprises: A sealing gasket is arranged between the fixing flange and the connecting flange to ensure a sealing fit between the fixing flange and the connecting flange.

[0011] A fertilizer stabilizing distributor provided by the present invention further comprises: A residue collection box is connected to the fixed flange at one end of the distributor cavity away from the rotating drive device. The fixed flange at one end of the distributor cavity away from the rotating drive device and the connecting flange are both provided with a residue discharge outlet, and the residue discharge outlet is connected to the residue collection box.

[0012] According to a fertilizer stabilizing distributor provided by the present invention, a mounting port is provided at the bottom of the residue collecting box, and the mounting port is provided with a bottom cover detachably connected to the residue collecting box.

[0013] The present invention also provides a fertilizing device, comprising a frame, a tank, a ventilation box, a pressure pump device and a fertilizer discharging device, wherein the fertilizer discharging device comprises any one of the above-mentioned fertilizer stabilizing distributors.

[0014] The fertilizer stabilizing distributor provided by the present invention has a cutting knife arranged on at least one side of a spiral blade, and uses the cutting knife to cut solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity, so that the fertilizer stabilizing distributor can be suitable for liquid organic fertilizer with complex physical properties, and the liquid organic fertilizer can be evenly output from the outlet of the distributor cavity through the rotation of the spiral blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the fertilization equipment provided by the present invention.

[0017] Figure 2 This is the second schematic diagram of the three-dimensional structure of the fertilization equipment provided by the present invention.

[0018] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the tank body provided by the present invention.

[0020] Figure 5 It is a schematic diagram of the explosion structure of the fertilizer stabilizing distributor provided by the present invention.

[0021] Figure 6 It is a structural schematic diagram of the rotating shaft and spiral blades provided by the present invention.

[0022] Figure 7 yes Figure 6 Schematic diagram of the local enlarged structure at point B in the middle.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the cutting blade provided by the present invention.

[0024] Fig. 9 It is a schematic diagram of the side structure of the cutting blade provided by the present invention.

[0025] Fig.10 It is a schematic diagram of the cross-sectional structure of the fluid controller provided by the present invention.

[0026] Reference numerals: 100, frame; 200, tank; 210, first control valve; 220, second control valve; 230, tapered straight nozzle; 240, arc baffle; 250, third control valve; 260, anti-overflow valve; 300, ventilation box; 310, pressure sensor; 400, pressure pump device; 500, fertilizer discharge device; 501, frame component; 510, fertilizer stabilization distributor; 511, buffer box; 512, distributor cavity; 513, rotating shaft; 514, rotary drive device; 515, fluid controller; 516, spiral blade; 517, cutting knife; 518, base; 519, blade; 520, cutting edge; 521, flow channel unit; 522, guide block; 523, connecting flange; 524, fixing flange; 525, bearing seat; 526, bearing; 528, residue collection box; 529, residue discharge outlet; 530, furrow opener; 531, fertilizer pipe; 532, layering plate; 533, first fertilizer hole; 534, second fertilizer hole; 535, fertilizer inlet connecting pipe; 536, connecting method flange; 537, fixing method flange; 540, pressing roller component; 541, pressing roller shaft; 542, soil crushing blade; 543, pressing rod; 544, permanent magnet; 545, magnetic pole shoe; 546, magnetic shaft sleeve; 550, pressing roller assembly; 560, drive assembly; 561, connecting plate; 562, linear drive component. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] like Figure 5As shown, the fertilizer stabilizing distributor 510 includes a buffer box 511 and a distributor body. The buffer box 511 is provided with an inlet and an outlet. The inlet of the buffer box 511 is connected to the fertilizer discharge port of the tank body 200 through a fertilization main pipe. The distributor body includes a distributor cavity 512, a rotating shaft 513, a rotating drive device 514 and a fluid controller 515. The distributor cavity 512 is arranged below the buffer box 511 and is located on the upper part of the frame component 501; an inlet is arranged at the top of the distributor cavity 512, and the inlet of the distributor cavity 512 is connected to the outlet of the buffer box 511; a plurality of outlets are arranged at the bottom of the distributor cavity 512, and the plurality of outlets of the distributor cavity 512 are arranged at intervals along a moving direction perpendicular to the tank body 200, and a filter screen is arranged at the outlet of the distributor cavity 512; connecting components are arranged at both ends of the distributor cavity 512, and the rotating shaft 513 is arranged inside the distributor cavity 512, and the two ends of the rotating shaft 513 are rotatably connected to the two connecting components one by one, and the rotating drive device 514 is connected to one end of the rotating shaft 513 and is connected to the distributor cavity 512, and the rotating drive device 514 is a motor or a combination of a motor and a reducer. The outer peripheral surface of the rotating shaft 513 is provided with a spiral blade 516 which spirally extends along the length direction of the rotating shaft 513, and the edge of the spiral blade 516 is provided with a cutting knife 517, and the cutting knife 517 is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity 512; the inlet of the fluid controller 515 is connected with the outlet of the distributor cavity 512, and the outlet of the fluid controller 515 is connected with the upper port of the fertilizer pipe 531 through a fertilizer hose. The fluid controller 515 is used to provide a gas-liquid buffer zone during the fertilizer discharge process at the outlet of the distributor cavity 512 to reduce the pulsation shock caused by the airflow.

[0033] The fertilizer stabilizing distributor 510 provided by the present invention is provided with a cutting knife 517 on at least one side of the spiral blade 516, and the cutting knife 517 is used to cut the solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity 512, so that the fertilizer stabilizing distributor 510 can be used for liquid organic fertilizer with complex physical properties. The liquid organic fertilizer is uniformly output from the outlet of the distributor cavity 512 through the rotation of the spiral blade 516.

[0034] In one embodiment of the present invention, Figure 5 As shown, the buffer box 511 is a rectangular box, the inlet of the buffer box 511 is arranged at the top of the buffer box 511, and the inlet of the buffer box 511 is provided with a fertilizer inlet connecting pipe 535. Specifically, the fertilizer inlet connecting pipe 535 is provided with a connecting flange 536, and the inlet of the buffer box 511 is provided with a fixed flange 537. The fertilizer inlet connecting pipe 535 is connected to the fixed flange 537 through the connecting flange 536. Further, a sealing gasket is provided between the connecting flange 536 and the fixed flange 537.

[0035] When spreading a single type of liquid organic fertilizer, the buffer box 511 is provided with one inlet; when spreading two types of liquid organic fertilizers, the buffer box 511 is provided with two inlets so that the two types of liquid organic fertilizers can be mixed in the buffer box 511; if more than two types of fertilizers are applied, more inlets can be provided according to actual conditions.

[0036] In one embodiment of the present invention, Figure 8 and 9 As shown, the cutting knife 517 includes a base 518 and a plurality of blades 519, the base 518 is connected to the spiral blade 516, and the plurality of blades 519 are arranged at intervals on the side of the base 518 away from the spiral blade 516, and a cutting edge 520 is formed on the side of the blade 519 away from the base 518, and the cutting edge 520 is inclined, and the cutting edge 520 forms an acute angle with the base 518, and a cutting edge slope is formed between the cutting edge 520 and the side of the blade 519, that is, Fig. 9 α in .

[0037] In one embodiment of the present invention, the length and width of each blade 519 are equal. It should be noted that the length of the blade 519 is Fig. 9 The width of the blade 519 is Fig. 9 The distance between two adjacent blades 519 is equal, and the distance between two adjacent blades 519 is determined according to actual needs.

[0038] When applying biogas slurry, in order to prevent excessive accumulation of straws leading to blockage of the outlet of the distributor cavity 512, and to reduce the length of the straws so as to promote the decomposition and quality improvement of the straws after entering the soil, the cutting knife 517 of the spiral blade 516 is specially designed in a targeted manner, and the cutting knife 517 uses 65 Mn with high strength, high hardness and high elasticity as the material for making the cutting knife 517. After a large number of experiments, it is found that the optimal cutting angle range of straw-like materials is 25~30°. Therefore, in this embodiment, the blade slope is set to 25~30°, and preferably, the blade slope is 28°. Further, the edge of the spiral blade 516 is provided with a spiral cutting groove, and the base 518 is embedded in the spiral cutting groove. The cutting process of the cutting knife 517 on the solids such as straws belongs to the cutting with a fulcrum, so the instantaneous speed of the cutting knife 517 contacting the straws does not need to be too high, which can ensure that the cutting knife 517 fully cuts the straws, and matches the appropriate rotation speed of the rotating shaft 513 to achieve the cutting and crushing of the solids such as straws.

[0039] In one embodiment of the present invention, a plurality of sequentially connected flow channel units 521 are disposed inside the fluid controller 515, and the cross-sectional area of ​​the flow channel unit 521 gradually decreases from top to bottom. Specifically, Fig.10 As shown, the cross-sectional area on the right side of the flow channel unit 521 is larger than the cross-sectional area on the left side. An arc-shaped guide surface is formed on the upper part of the side wall of the flow channel unit 521, and the arc-shaped guide surface extends to the inlet of the flow channel unit 521, and the arc-shaped guide surfaces of the even-numbered flow channel units 521 are located on the same side, and the arc-shaped guide surfaces of the odd-numbered flow channel units 521 are located on the same side. Specifically, the arc-shaped guide surface of the first flow channel unit 521 is located on the upper side, the arc-shaped guide surface of the second flow channel unit 521 is located on the lower side, the arc-shaped guide surface of the third flow channel unit 521 is located on the upper side, and the arc-shaped guide surface of the fourth flow channel unit 521 is located on the lower side. A guide block 522 is arranged inside the flow channel unit 521, and the guide block 522 is in the shape of a long strip. The guide block 522 is spaced apart from the two opposite side walls of the flow channel unit 521, so that flow channels are formed on both sides of the guide block 522, respectively, to connect the inlet and outlet of the flow channel unit 521.

[0040] When the first control valve 210 of the tank body 200 is opened to discharge fertilizer, because the pipeline connecting the tank body 200 to the fertilizer stabilizing distributor 510 contains gas, when the liquid organic fertilizer flows rapidly inside the pipeline, the gas in the pipe will form instantaneous pressure pulsation at the outlet of the distributor cavity 512 due to the high-speed pushing effect of the fluid, which will cause the fertilizer hose to swing disorderly. Long-term swinging can easily cause the connection of the fertilizer hose to loosen, resulting in unnecessary maintenance workload. Therefore, it is necessary to install a fluid controller 515 to provide a gas-liquid buffer zone for the discharge of fertilizer at the outlet of the distributor cavity 512 to reduce the pulsation shock caused by the airflow.

[0041] When the liquid organic fertilizer enters from the inlet of the fluid controller 515, the liquid organic fertilizer enters the inclined straight channel on the upper side of the guide block 522 under the guiding effect of the arc-shaped guide surface, and then enters the next flow channel unit 521. The use of such a flow channel design allows the liquid organic fertilizer to smoothly pass through each flow channel unit 521 without encountering a large resistance; when the liquid organic fertilizer flows in the reverse direction, the liquid organic fertilizer will encounter a large resistance under the action of the guide block 522 and the arc-shaped guide surface.

[0042] The characteristic of the fluid controller 515 is that the fluid controller 515 does not use a traditional switch assembly to control the flow rate, but relies on the principle of fluid dynamics and the ingenious design of the internal structure to achieve unidirectional conduction, thereby achieving the stability of the fluid flow. This design not only improves the efficiency of the fluid flow, but also increases the reliability and durability of the device; the fluid controller 515 acts as a buffer device between the outlet of the distributor cavity 512 and the fertilizer hose, so that the liquid organic fertilizer flows smoothly, and does not splash around when flowing to the soil to affect the uniform distribution of nutrients in the soil, thereby improving the stability of the outlet of the distributor cavity 512 and reducing the pressure pulsation impact of the fertilizer outlet.

[0043] Furthermore, a soil nutrient monitoring and feedback device is installed at the front end of the tank truck, and a flow regulating device is provided at the outlet of the fluid controller 515. The soil nutrient monitoring and feedback device is electrically connected to the flow regulating device, and the flow regulating device can be a flow electric control valve, or a combination of a signal receiving controller and a flow control device. During the movement of the tank truck, the amount of fertilizer required in the area can be calculated according to the soil nutrient conditions, and the flow regulating device receives the fertilizer amount instruction sent from the soil nutrient monitoring and feedback device in real time, and automatically adjusts the outlet size according to the fertilizer amount instruction, thereby realizing automatic fertilization and precise control of the fertilizer amount.

[0044] In one embodiment of the present invention, Figure 5 As shown, the connection assembly includes a connection flange 523 and a bearing seat 525. Both ends of the distributor cavity 512 are provided with a fixing flange 524. The distributor cavity 512 is welded to the fixing flange 524. The connection flange 523 is connected to the corresponding fixing flange 524 by bolts. Both the connection flange 523 and the fixing flange 524 are provided with shaft holes. The bearing seat 525 is provided on the side of the connection flange 523 away from the fixing flange 524. The bearing seat 525 is connected to the connection flange 523 by bolts. Both ends of the rotating shaft 513 pass through the corresponding fixing flange 524 and the connection flange 523 and then rotate with the corresponding bearing seat 525 through the bearing 526.

[0045] In one embodiment of the present invention, the connection assembly further comprises a sealing gasket, which is arranged between the fixed flange 524 and the connecting flange 523 to seal the fixed flange 524 and the connecting flange 523, and the sealing gasket is also provided with an axial hole to allow the rotating shaft 513 to pass through.

[0046] In one embodiment of the present invention, Figure 5As shown, the fertilizer stabilizing distributor 510 further includes a residue collection box 528, which is connected to the fixed flange 524 at one end of the distributor chamber 512 away from the rotating drive device 514, and the fixed flange 524 at one end of the distributor chamber 512 away from the rotating drive device 514 and the connecting flange 523 are both provided with a residue discharge port 529, which is connected to the residue collection box 528. The fiber materials, stones, etc. in the liquid organic fertilizer rotate with the rotating shaft 513 and move along the axial direction of the rotating shaft 513. When passing through the cutting knife 517, the cutting knife 517 will cut off the fiber materials, and the stones will be squeezed and crushed by the cutting knife 517. Some of the cut fiber materials and small stones will flow into the field through the filter screen along the pipeline, and the other part of the solids that have not passed through will move along the axial direction of the rotating shaft 513 to the residue discharge port 529, and fall into the residue collection box 528 through the collection box entrance through the residue discharge port 529. Furthermore, since the bearing seat 525 of the residue collection box 528 is located inside the residue collection box 528, in order to prevent the bearing seat 525 from rusting, a partition plate is provided inside the residue collection box 528 to separate the bearing seat 525 from the liquid organic fertilizer.

[0047] In one embodiment of the present invention, a mounting port is provided at the bottom of the residue collection box 528, and a bottom cover is provided at the mounting port, which is detachably connected to the residue collection box 528. Specifically, the residue collection box 528 and the bottom cover are connected by bolts. Preferably, a sealing gasket is provided between the residue collection box 528 and the bottom cover.

[0048] In a preferred embodiment of the present invention, Figure 6 and Figure 7 As shown, the distributor body also includes a permanent magnet 544, a magnetic pole shoe 545 and a magnetic sleeve 546. The permanent magnet 544 is arranged on the inner surface of the inner ring of the bearing 526. Preferably, the inner surface of the inner ring of the bearing 526 is provided with an annular groove, and the annular permanent magnet 544 is embedded in the annular groove. The magnetic pole shoe 545 is arranged on one side of the permanent magnet 544. The magnetic sleeve 546 is sleeved on the end of the rotating shaft 513, and the permanent magnet 544 is sleeved on the outer periphery of the magnetic sleeve 546. An annular gap is formed between the magnetic sleeve 546 and the permanent magnet 544. There is a magnetic fluid in the annular gap. A rotating magnetic field loop is formed between the magnetic sleeve 546 and the permanent magnet 544, and the magnetic fluid in the annular gap is firmly adsorbed in the annular gap to form a fluid ring similar to an O-ring, which fills the gap with the magnetic fluid and completely blocks it, thereby achieving the ultimate sealing purpose. The use of the above-mentioned magnetic sealing structure has the following advantages: First, magnetic fluid seals have extremely high sealing performance and can achieve almost no leakage. This highly stable sealing performance ensures the stable operation of the liquid fertilizer dispenser under extreme working conditions. In contrast, the leakage rate of traditional seals is usually higher, especially under high pressure, high speed or extreme working conditions, the sealing performance may be affected.

[0049] Secondly, since there is no direct contact between the moving and stationary parts of magnetic fluid seals, mechanical wear is avoided, so the service life is long and daily maintenance is simple. Usually, it only needs to add some magnetic fluid regularly to restore the original state without complicated maintenance work. Traditional seals often have problems such as wear and aging as the use time increases, resulting in a decrease in sealing performance. Therefore, it is necessary to replace the seals regularly and perform necessary maintenance and care.

[0050] Thirdly, magnetic fluid seals have a wide range of adaptability to speeds and can be used regardless of stationary, low speed or high speed. At the same time, magnetic fluid seals have strong adaptability and can cope with different media, temperature and pressure requirements. Traditional seals have relatively weak adaptability and flexibility, and may need to replace different types of seals under different working conditions to meet the requirements.

[0051] Fourthly, magnetic fluid seals do not generate mechanical friction noise or heat during operation, which is conducive to maintaining stable operation of the equipment and extending its service life. Traditional seals may generate certain noise and heat when running at high speed or under high pressure, which will have a certain impact on the operating stability and service life of the equipment.

[0052] The present invention further provides a fertilizing device, which includes a frame 100, a tank body 200, a ventilation box 300, a pressure pump device 400 and a fertilizer discharging device 500. The fertilizer discharging device 500 includes the fertilizer stabilizing distributor 510 described in any of the above embodiments.

[0053] like Figures 1 to 3 As shown, a wheel is provided at the bottom of the vehicle frame 100; the tank body 200 is provided on the vehicle frame 100, and the tank body 200 is provided with an air inlet port. The ventilation box 300 is provided with an air inlet and an air outlet, and the air outlet of the ventilation box 300 is communicated with the air inlet port of the tank body 200. The pressure pump device 400 is communicated with the air inlet of the ventilation box 300 through an air pipeline, and the pressure pump device 400 is used to change the pressure inside the tank body 200 so that the liquid organic fertilizer flows into or out of the tank body 200.

[0054] The fertilizer discharging device 500 includes a frame component 501, a fertilizer stabilizing distributor 510, a plurality of furrow openers 530 and a pressing roller component 540. The frame component 501 is arranged along a moving direction perpendicular to the tank body 200. The frame component 501 is connected to the frame 100 or the tank body 200. The fertilizer stabilizing distributor 510 is arranged on the upper part of the frame component 501. The inlet of the fertilizer stabilizing distributor 510 is connected to the fertilizer discharging port of the tank body 200 through the fertilization main pipe.

[0055] A plurality of furrow openers 530 are arranged at intervals at the bottom of the frame member 501 along a moving direction perpendicular to the tank body 200. A layered fertilization mechanism is arranged at the rear side of the furrow opener 530. The layered fertilization mechanism includes a fertilization pipe 531 and a layered plate 532. The fertilization pipe 531 is connected to the furrow opener 530. The upper end of the fertilization pipe 531 is connected to the outlet of the fertilizer stabilizing distributor 510 through a fertilization hose. The lower end of the fertilization pipe 531 is provided with a first fertilization hole 533. The side wall of the fertilization pipe 531 is provided with a second fertilization hole 534. The layered plate 532 is installed at the second fertilization hole 534. The layered plate 532 is hinged to the fertilization pipe 531. The layered plate 532 is partially located inside the fertilization pipe 531 and partially located outside the fertilization pipe 531. The fertilizer flow rate output from the first fertilization hole 533 and the second fertilization hole 534 can be changed by changing the angle between the layered plate 532 and the horizontal plane.

[0056] Specifically, Figure 3 As shown, when the organic fertilizer inside the fertilizer pipe 531 flows downward, under the obstruction of the layered plate 532, part of the organic fertilizer flows out from the second fertilizer hole 534, and the other part flows out from the first fertilizer hole 533. When the layered plate 532 rotates downward, the flow channel inside the fertilizer pipe 531 is reduced, and most of the organic fertilizer flows out from the second fertilizer hole 534, and a small part flows out from the first fertilizer hole 533; when the layered plate 532 rotates upward, the flow channel inside the fertilizer pipe 531 is enlarged, and a small part of the organic fertilizer flows out from the second fertilizer hole 534, and most of the organic fertilizer flows out from the first fertilizer hole 533. The liquid organic fertilizer flowing out of the first fertilizer hole 533 enters the deep soil, and the liquid organic fertilizer flowing out of the second fertilizer hole 534 enters the shallow soil. The pressing roller component 540 is arranged at the rear of the furrow opener 530 and is hinged to the frame component 501.

[0057] The fertilization equipment provided by the present invention can change the fertilizer flow rate output by the first fertilization hole 533 and the second fertilization hole 534 by changing the angle between the stratification plate 532 and the horizontal plane; a single or multiple liquid organic fertilizers can be efficiently and evenly distributed to each fertilizer outlet hole, thereby realizing stratified fertilizer return to the field and promoting the orderly distribution of nutrients in the liquid fertilizer in each layer of soil.

[0058] The fertilization equipment provided by the present invention has high working efficiency, can complete a series of operations such as ditching, fertilizing, and compacting soil, reduces the volatilization of liquid organic fertilizers, and can mix the liquid organic fertilizers with the soil to a certain extent; it realizes the return of liquid organic fertilizers to the fields and guides green planting, and plays a positive role in optimizing soil quality, reducing costs, and promoting environmental protection.

[0059] In one embodiment of the present invention, Figure 1 As shown, the frame 100 is used to carry the tank 200 and the fertilizer discharging device 500. In order to reduce the weight of the frame 100, the frame 100 adopts a hollow design. A tractor traction hook is provided at the front end of the frame 100 to facilitate connection with the tractor.

[0060] In one embodiment of the present invention, Figure 1 As shown, the fertilizer outlet of the tank body 200 is arranged at the top of the tank body 200, and the fertilizer outlet of the tank body 200 is provided with a first control valve 210, and the fertilizer main pipe is connected to the first control valve 210. The opening and closing of the fertilizer outlet can be controlled by the first control valve 210.

[0061] In one embodiment of the present invention, Figure 4 As shown, a fertilizer outlet is provided at the lower part of the tank body 200 near one end of the fertilizer discharging device 500, and a second control valve 220 is provided at the fertilizer outlet. A conical straight nozzle 230 is provided at the outlet of the second control valve 220. The inlet of the conical straight nozzle 230 is connected to the outlet of the second control valve 220, and the inner diameter of the conical straight nozzle 230 gradually decreases from the inlet of the conical straight nozzle 230 to the outlet of the conical straight nozzle 230. An arc baffle 240 connected to the second control valve 220 is provided at the outlet of the conical straight nozzle 230. The arc baffle 240 is tilted downward at a certain angle toward the conical straight nozzle 230. The arc baffle 240 is arranged tilted, and the angle between the arc baffle 240 and the horizontal plane is an acute angle. The arc baffle 240 is used to collide with the liquid organic fertilizer sprayed through the conical straight nozzle 230, so that the liquid organic fertilizer is evenly sprayed on the ground.

[0062] When the liquid organic fertilizer enters the interior of the tapered straight nozzle 230, the inner diameter of the tapered straight nozzle 230 gradually decreases, the flow rate of the liquid organic fertilizer increases, and the liquid organic fertilizer is sprayed toward the arc baffle 240 at a very high flow rate. After the liquid organic fertilizer collides with the arc baffle 240, it is distributed to both sides and the rear of the arc baffle 240, thereby being evenly sprayed on the ground.

[0063] Furthermore, a guide protrusion is provided on one side of the arc baffle 240 facing the conical straight nozzle 230. The guide protrusion is in the shape of a cone or a hemisphere. When the liquid organic fertilizer is sprayed onto the guide protrusion, the liquid organic fertilizer is diffused to the surroundings under the guide effect of the guide protrusion, so as to be evenly sprayed on the ground.

[0064] In one embodiment of the present invention, Figure 1 As shown, both sides of the tank body 200 are provided with fertilizer inlets, which are symmetrically arranged on both sides of the front end of the tank body 200. Both fertilizer inlets are provided with third control valves 250, which are electrically connected to the control device. Specifically, the third control valve 250 is a pull rod control valve, and of course, it can also be other types of control valves.

[0065] In one embodiment of the present invention, the ventilation box 300 is provided with a pressure sensor 310 for detecting the pressure in the ventilation box 300 , and the control device controls the rotation speed of the pressure pump device 400 according to the pressure value detected by the pressure sensor 310 .

[0066] In one embodiment of the present invention, an anti-overflow valve 260 is provided at the air inlet port of the tank body 200 , and the anti-overflow valve 260 is used to prevent the organic fertilizer in the tank body 200 from entering the interior of the ventilation box 300 .

[0067] In one embodiment of the present invention, Figure 2 As shown, the pressing roller component 540 includes a pressing roller assembly 550 and a driving assembly 560. The driving assembly 560 includes two connecting plates 561 and two linear driving members 562. The two connecting plates 561 are arranged at intervals. The pressing roller assembly 550 is located between the two connecting plates 561. The two ends of the pressing roller assembly 550 are rotatably connected to one end of the two connecting plates 561 in a one-to-one correspondence. The other ends of the two connecting plates 561 are both hinged to the frame component 501 through a pin shaft. One end of the two linear driving members 562 is hinged to the two connecting plates 561 in a one-to-one correspondence. The other ends of the two linear driving members 562 are both hinged to the frame component 501. Specifically, the linear driving member 562 is an oil cylinder. The cylinder bodies of the two oil cylinders are hinged to the frame component 501 through a pin shaft. The telescopic rods of the two oil cylinders are hinged to the two connecting plates 561 in a one-to-one correspondence through a pin shaft. When the oil cylinder is extended, the height of the press roller assembly 550 increases; when the oil cylinder is shortened, the height of the press roller assembly 550 decreases.

[0068] In one embodiment of the present invention, Figure 2As shown, the pressing roller assembly 550 includes a pressing roller shaft 541, a plurality of soil-breaking blades 542, and a plurality of pressing rods 543. The pressing roller shaft 541 is a rod-shaped structure, and is arranged perpendicular to the moving direction of the tank body 200. The two ends of the pressing roller shaft 541 are rotatably connected to one end of two connecting plates 561 in a one-to-one correspondence. The soil-breaking blades 542 are circular sheet-shaped structures, and the plurality of soil-breaking blades 542 are sleeved on the outer periphery of the pressing roller shaft 541 at intervals along the axial direction of the pressing roller shaft 541. The soil-breaking blades 542 are welded to the pressing roller shaft 541. The pressing rod 543 is a triangular iron, and the plurality of pressing rods 543 are arranged at intervals around the outer periphery of the plurality of soil-breaking blades 542, and are connected to the edges of the soil-breaking blades 542. The pressing rod 543 forms an acute angle with the pressing roller shaft 541. When the tractor is moving, the pressing roller assembly 550 rotates and presses the broken soil to level the soil, which can bury the liquid fertilizer to a certain extent to prevent it from volatilizing and emitting a pungent odor.

[0069] Working principle of fertilization equipment: When the tank truck drives the vacuum pump to extract the gas in the tank body 200, the pressure in the tank body 200 decreases, and the liquid organic fertilizer can flow into the tank body 200 through the fertilizer inlets on both sides of the tank body 200. When the tank truck drives the vacuum pump to pump gas into the tank body 200, the pressure in the tank body 200 increases, and the liquid organic fertilizer in the tank body 200 flows out through the fertilizer discharge port and flows into the buffer tank 511. Under the action of the inner wall of the buffer box 511, it flows to the distributor cavity 512, and the rotating shaft 513 rotates under the drive of the motor. The spiral blades 516 with a certain spacing evenly distribute the liquid organic fertilizer to the outlet below the distributor cavity 512. The fiber materials, stones, etc. in the liquid organic fertilizer rotate with the rotating shaft 513 and move along the axial direction of the rotating shaft 513. When passing through the cutting knife 517, the cutting knife 517 will cut off the fiber materials, and the stones will be squeezed and crushed by the cutting knife 517. Some of the cut fiber materials and small stones will pass through the filter net into the interior of the fluid controller 515, and finally flow into the field along the pipeline. The other part of the solids that have not passed through will move along the axial direction of the rotating shaft 513 to the residue discharge outlet 529, pass through the residue discharge outlet 529 and fall into the residue collection box 528 through the collection box entrance.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fertilizer stabilizing distributor, characterized in that: include: A buffer box (511), wherein the buffer box (511) is provided with an inlet and an outlet, and the inlet of the buffer box (511) is connected to the fertilizer discharge port of the tank body (200) through a fertilizer main pipe; A distributor body, the distributor body comprising a distributor cavity (512), a rotating shaft (513), a rotating drive device (514) and a fluid controller (515), the distributor cavity (512) being arranged below the buffer box (511) and located at the upper part of the frame component (501); an inlet is arranged at the top of the distributor cavity (512), the inlet of the distributor cavity (512) being connected to the outlet of the buffer box (511), a plurality of outlets are arranged at the bottom of the distributor cavity (512), the plurality of outlets of the distributor cavity (512) being arranged at intervals along a direction perpendicular to the movement direction of the tank body (200), and a filter screen is arranged at the outlet of the distributor cavity (512); connecting components are arranged at both ends of the distributor cavity (512), the rotating shaft (513) is arranged inside the distributor cavity (512), and the two ends of the rotating shaft (513) are connected to the two connecting components. The components are rotatably connected in a one-to-one correspondence, the rotary drive device (514) is connected to one end of the rotating shaft (513), and is connected to the distributor cavity (512); the outer peripheral surface of the rotating shaft (513) is provided with a spiral blade (516) extending spirally along the length direction of the rotating shaft (513), and the edge of the spiral blade (516) is provided with a cutting knife (517), and the cutting knife (517) is used to cut solid matter in the fertilizer so that the crushed solid matter can flow out through the outlet of the distributor cavity (512); the inlet of the fluid controller (515) is connected to the outlet of the distributor cavity (512), and the outlet of the fluid controller (515) is connected to the upper port of the fertilizer pipe (531) through a fertilizer hose. The fluid controller (515) is used to provide a gas-liquid buffer zone during the fertilizer discharge process at the outlet of the distributor cavity (512), thereby reducing the pulsation impact caused by the airflow.

2. The fertilizer stabilizing distributor (510) according to claim 1, characterized in that: The cutting knife (517) comprises: A base (518), the base (518) being connected to the spiral blade (516); A plurality of blades (519) are arranged at intervals on a side of the base (518) away from the spiral blade (516); a cutting edge (520) is formed on a side of the blade (519) away from the base (518); and a cutting edge slope is formed between the cutting edge (520) and the side edge of the blade (519).

3. The fertilizer stabilizing distributor (510) according to claim 2, characterized in that: The length and width of each blade (519) are equal, and the distance between two adjacent blades (519) is equal.

4. The fertilizer stabilizing distributor (510) according to claim 2, characterized in that: The cutting edge slope is 25-30°.

5. The fertilizer stabilizing distributor (510) according to any one of claims 1 to 4, characterized in that: The fluid controller (515) is provided with a plurality of flow channel units (521) connected in sequence, the cross-sectional area of ​​the flow channel unit (521) gradually decreases from top to bottom, an arc-shaped guide surface is formed on the upper part of the side wall of the flow channel unit (521), and the arc-shaped guide surface extends to the entrance of the flow channel unit (521), and a guide block (522) is provided inside the flow channel unit (521), and the guide block (522) is arranged at intervals from two opposite side walls of the flow channel unit (521).

6. The fertilizer stabilizing distributor (510) according to any one of claims 1 to 4, characterized in that: The connection component comprises: A connecting flange (523), both ends of the distributor chamber (512) are provided with fixing flanges (524), the connecting flange (523) is connected to the corresponding fixing flange (524), and both the connecting flange (523) and the fixing flange (524) are provided with an axial hole; A bearing seat (525), wherein the bearing seat (525) is arranged on a side of the connecting flange (523) away from the fixed flange (524), and two ends of the rotating shaft (513) pass through the corresponding fixed flange (524) and the connecting flange (523) and then rotate with the corresponding bearing seat (525) through bearings (526).

7. The fertilizer stabilizing distributor (510) according to claim 6, characterized in that: The connection component also includes: A sealing gasket is arranged between the fixing flange (524) and the connecting flange (523) so as to enable the fixing flange (524) and the connecting flange (523) to be sealed and matched.

8. The fertilizer stabilizing distributor (510) according to claim 6, characterized in that: Also includes: A residue collection box (528), the residue collection box (528) is connected to the fixed flange (524) at one end of the distributor chamber (512) away from the rotating drive device (514), and the fixed flange (524) at one end of the distributor chamber (512) away from the rotating drive device (514) and the connecting flange (523) are both provided with a residue discharge outlet (529), and the residue discharge outlet (529) is connected to the residue collection box (528).

9. The fertilizer stabilizing distributor (510) according to claim 8, characterized in that: The bottom of the residue collection box (528) is provided with a mounting port, and the mounting port is provided with a bottom cover detachably connected to the residue collection box (528).

10. A fertilization device, characterized in that: The invention comprises a frame, a tank body, a ventilation box, a pressure pump device and a fertilizer discharging device, wherein the fertilizer discharging device comprises the fertilizer stabilizing distributor according to any one of claims 1 to 9.

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