A water and fertilizer integrated machine

Abstract

The present invention belongs to the technical field of organic fertilizer processing and discloses a water-fertilizer integrated machine. The water-fertilizer integrated machine includes a grinding device and a solid-liquid separation device. The grinding device includes a feed hopper, a grinding table and a receiving hopper. The receiving hopper is provided with a liquid inlet and a solid-liquid material outlet. The solid material enters the grinding table through the feed hopper and is ground by the grinding table. The liquid enters through the liquid inlet and mixes with the solid material to form a solid-liquid material, which then flows out from the solid-liquid material outlet. One end of the solid-liquid separation device is connected to the solid-liquid material outlet. The solid-liquid material is filtered by the solid-liquid separation device to form a primary filtered material and a primary separated material. The water-fertilizer integrated machine can grind solid fertilizer particles and form solid-liquid fertilizer that meets irrigation requirements, thereby realizing water-fertilizer integrated irrigation.

Description

Technical Field

[0001] The present invention relates to the technical field of organic fertilizer processing, in particular to a water-fertilizer integrated machine. Background Art

[0002] Chemical fertilizers are industrially produced through chemical reactions. While they can quickly boost plant growth, they have little effect on improving soil texture or increasing long-term fertility. Excessive use can also burn plants. Organic fertilizers are primarily derived from plants or animals, processed from biomass, animal and plant waste, or plant residues. They improve soil structure, stimulate the growth of soil microorganisms, and, when used properly, generally do not burn or damage plants. Consequently, due to concerns about environmental impact and human health, organic fertilizers are being promoted.

[0003] However, organic fertilizers are more difficult to process than chemical fertilizers. Chemical fertilizers are highly water-soluble and can be absorbed by water, transported through pipes to application sites, and then applied through spray irrigation or drip irrigation. However, organic fertilizers are larger in size and can easily clog pipes, nozzles, and drippers, making integrated irrigation difficult. Therefore, manual transportation and fertilization are still the primary methods used, resulting in low irrigation efficiency.

[0004] Therefore, it is urgent to propose a water-fertilizer integrated machine to solve the above problems. Summary of the Invention

[0005] An object of the present invention is to provide a water-fertilizer integrated machine that can grind solid fertilizer particles and form solid-liquid fertilizers that meet irrigation requirements, thereby realizing water-fertilizer integrated irrigation.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A water and fertilizer integrated machine, comprising:

[0008] A grinding device, comprising a feed hopper, a grinding table, and a receiving hopper, wherein the grinding table is connected to the feed hopper and the receiving hopper respectively, wherein solid material enters the grinding table through the feed hopper and is ground by the grinding table, and the ground solid material falls into the receiving hopper, wherein the receiving hopper is provided with a liquid inlet and a solid-liquid material outlet, wherein liquid enters through the liquid inlet and mixes with the solid material to form a solid-liquid material, and then flows out from the solid-liquid material outlet;

[0009] A solid-liquid separation device, one end of which is connected to the solid-liquid material outlet, the solid-liquid separation device having a first outlet and a second outlet, the solid-liquid material being filtered by the solid-liquid separation device to form a primary filtered material and a primary separated material, the primary filtered material flowing out through the first outlet, and the primary separated material being discharged through the second outlet.

[0010] Optionally, the grinding table includes a rotating inner grinding body and an outer grinding body sleeved outside the inner grinding body, the inner grinding body rotates relative to the outer grinding body and forms a grinding chamber between the inner grinding body and the outer grinding body, the two ends of the grinding chamber are respectively connected to the feed hopper and the receiving hopper, the outer wall of the inner grinding body is provided with a plurality of first grinding teeth at intervals, and the inner wall of the outer grinding body is provided with a plurality of second grinding teeth at intervals, and the first grinding teeth and the second grinding teeth cooperate with each other to grind the solid material.

[0011] Optionally, the first grinding teeth are provided in a plurality of groups along the axial direction of the grinding table, and the interval between two adjacent first grinding teeth in each group is a first interval, and the first intervals of the plurality of groups of first grinding teeth become smaller layer by layer along the direction from the feed hopper to the receiving hopper;

[0012] And / or, multiple groups of second grinding teeth are arranged along the axial direction of the grinding table, the interval between two adjacent second grinding teeth in each group of second grinding teeth is the second interval, and the interval between two adjacent second grinding teeth in the multiple groups of second grinding teeth becomes smaller layer by layer along the direction from the feed hopper to the receiving hopper.

[0013] Optionally, the width of the first grinding teeth decreases layer by layer, and / or the width of the second grinding teeth decreases layer by layer.

[0014] Optionally, the inner grinding body is a frustum structure, and each group of the first grinding teeth is arranged along the generatrix of the inner grinding body or is inclined relative to the generatrix of the inner grinding body;

[0015] And / or, the outer grinding body is a frustum structure, and each group of the second grinding teeth is arranged along the generatrix of the outer grinding body or is inclined relative to the generatrix of the outer grinding body.

[0016] Optionally, the grinding device further includes a support frame and an adjusting knob, wherein the adjusting knob is threadedly connected to the support frame and an end portion thereof abuts against the outer grinding body to adjust the gap between the outer grinding body and the inner grinding body.

[0017] Optionally, the outer grinding body includes a fixing portion, which is a boss extending outward from the bottom of the outer grinding body. A weight body fixing pin is provided on the fixing portion, and the weight body fixing pin is used to place a counterweight.

[0018] Optionally, it also includes a rotating main shaft, which is fixedly installed in the inner grinding body to drive the inner grinding body to rotate. The inner grinding body is fixedly connected to the main shaft and is driven to rotate by the main shaft. One end of the main shaft is located in the feed hopper and is connected to a screw feeder. The screw feeder includes a first stirring blade connected to the main shaft and a plurality of feeding blades connected to the main shaft and arranged at intervals. The plurality of feeding blades are distributed in a spiral. The solid material is stirred by the first stirring blade and then transported to the grinding table through the feeding blade.

[0019] Optionally, the solid-liquid separation device includes a first collecting pipe, a filter screen and a lifting paddle, the solid-liquid material outlet is connected to one end of the first collecting pipe, the filter screen is located in the first collecting pipe and has a tubular structure, a first channel is formed between the filter screen and the inner wall of the first collecting pipe, the first outlet and the second outlet are arranged at both ends of the first collecting pipe, the first channel is connected to the first outlet, the lifting paddle is located in the filter screen, the solid-liquid material transported by the lifting paddle is filtered by the filter screen, the once filtered material passing through the filter screen flows into the first channel and flows out through the first outlet, and the once separated material that has not passed through the filter screen flows out through the second outlet.

[0020] Optionally, an ultrafine separation device is also included, one end of which is connected to the first outlet, and the ultrafine separation device has a third outlet and a fourth outlet. The primary filtered material is filtered by the ultrafine separation device to form a secondary filtered material and a secondary separated material. The secondary filtered material flows out through the fourth outlet, and the secondary separated material is discharged through the third outlet.

[0021] Beneficial effects:

[0022] The integrated water and fertilizer machine provided by the present invention is provided with a feed hopper, a grinding table and a receiving hopper on the grinding device. After the solid material enters the grinding device from the feed hopper, it is transported to the grinding table connected to the feed hopper. After being ground on the grinding table, it flows to the receiving hopper. The receiving hopper is provided with a liquid inlet. The liquid flows into the receiving hopper from the liquid inlet, thereby mixing with the solid material to form a solid-liquid material. The solid-liquid material then flows out from the solid-liquid material outlet provided on the receiving hopper. One end of the solid-liquid separation device is connected to the solid-liquid material outlet, so that the solid-liquid material flowing out of the grinding device can flow to the solid-liquid separation device. The solid-liquid separation device performs a primary filtration on the solid-liquid material. The solid-liquid material with a particle size that meets certain requirements is the primary filtration material, and the solid-liquid material with larger particles is the primary separation material. The primary filtration material and the primary separation material are discharged from the first outlet and the second outlet of the solid-liquid separation device respectively, realizing a primary separation filtration. After the solid material is ground by the grinding device and filtered once by the solid-liquid separation device, water and fertilizer integrated irrigation is realized without manual transportation and fertilization. Effective grinding can ensure that the irrigation material does not block the pipeline and outlet. The equipment can be used for both organic fertilizer irrigation and chemical fertilizer irrigation. It has high irrigation efficiency and greatly reduces the workload of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the water-fertilizer integrated machine provided by the present invention;

[0024] Figure 2 1 is a schematic structural diagram of an embodiment of the inner grinding body provided by the present invention;

[0025] Figure 3 1 is a schematic structural diagram of another embodiment of the inner grinding body provided by the present invention;

[0026] Figure 4 1 is a schematic structural diagram of another embodiment of the inner grinding body provided by the present invention;

[0027] Figure 5 1 is a schematic structural diagram of another embodiment of the inner grinding body provided by the present invention;

[0028] Figure 6 yes Figure 1 A local enlarged view at point A;

[0029] Figure 7 It is a structural schematic diagram of the screw feeder and the main shaft provided by the present invention;

[0030] Figure 8 It is a structural schematic diagram of the lifting paddle provided by the present invention;

[0031] Figure 9 It is a structural schematic diagram of an embodiment of the grinding device provided by the present invention.

[0032] In the picture:

[0033] 100, support frame; 200, grinding device; 210, feed hopper; 220, grinding table; 221, outer grinding body; 222, inner grinding body; 223, fixing part; 224, first grinding tooth; 225, weighted body fixing pin; 226, connecting piece; 227, first fixing pin; 228, second fixing pin; 229, fixing block; 230, receiving hopper; 231, liquid inlet; 232, solid and liquid material outlet; 240, adjusting knob; 250, main shaft; 260, screw feeder; 261, first stirring blade; 262, feed blade 270, first driving member; 280, pulley; 300, solid-liquid separation device; 310, first collecting pipe; 311, first outlet; 312, second outlet; 320, filter screen; 330, lifting paddle; 331, second stirring blade; 332, lifting blade; 340, material guide trough; 350, second driving member; 400, ultrafine separation device; 410, pump; 420, pipeline; 430, filter tube; 440, second collecting pipe; 450, third outlet; 460, fourth outlet; 470, valve; 480, pressure gauge. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "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 present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and 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 includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] Example 1

[0039] Figure 1 This is a structural diagram of the water and fertilizer integrated machine provided in this embodiment. Figure 1 As shown, the integrated water and fertilizer machine includes a grinding device 200 and a solid-liquid separation device 300. The grinding device 200 includes a feed hopper 210, a grinding table 220, and a receiving hopper 230. The grinding table 220 is connected to the feed hopper 210 and the receiving hopper 230 respectively. Solid material enters the grinding table 220 through the feed hopper 210 and is ground by the grinding table 220. The ground solid material falls into the receiving hopper 230. The receiving hopper 230 is provided with a liquid inlet 231 and a solid-liquid material outlet 232. Liquid enters through the liquid inlet 231 and mixes with the solid material to form a solid-liquid material, and then flows out from the solid-liquid material outlet 232. One end of the solid-liquid separation device 300 is connected to the solid-liquid material outlet 232. The solid-liquid separation device 300 has a first outlet 311 and a second outlet 312. After the solid-liquid material is filtered by the solid-liquid separation device 300, a primary filtered material and a primary separated material are formed. The primary filtered material flows out through the first outlet 311, and the primary separated material is discharged through the second outlet 312.

[0040] The above-mentioned water-fertilizer integrated machine is provided with a feed hopper 210, a grinding table 220 and a receiving hopper 230 on the grinding device 200. After the solid material enters the grinding device 200 from the feed hopper 210, it is transported to the grinding table 220 connected to the feed hopper 210. After being ground on the grinding table 220, it flows to the receiving hopper 230. The receiving hopper 230 is provided with a liquid inlet 231. The liquid flows into the receiving hopper 230 from the liquid inlet 231, thereby mixing with the solid material to form solid-liquid material, and the solid-liquid material then flows out from the solid-liquid material outlet 232 provided on the receiving hopper 230. One end of the solid-liquid separation device 300 is connected to the solid-liquid material outlet 232, so that the solid-liquid material flowing out of the grinding device 200 can flow to the solid-liquid separation device 300. The solid-liquid separation device 300 performs a primary filtration on the solid-liquid material. The solid-liquid material with a particle size that meets certain requirements is the primary filtration material, while the solid-liquid material with larger particles is the primary separation material. The primary filtration material and the primary separation material are discharged from the first outlet 311 and the second outlet 312 of the solid-liquid separation device 300, respectively, to achieve a single separation and filtration. After the solid material is ground by the grinding device 200 and filtered once by the solid-liquid separation device 300, integrated water and fertilizer irrigation is achieved, eliminating the need for manual transportation and fertilization. Effective grinding can ensure that the irrigation material does not block the pipeline and outlet. The equipment can be used for both organic fertilizer irrigation and chemical fertilizer irrigation, with high irrigation efficiency, greatly reducing the workload of workers.

[0041] Continue to see Figure 1 The grinding device 200 in this embodiment is a vertical structure, with a feed hopper 210 disposed above the grinding table 220 and a receiving hopper 230 located below the grinding table 220. The feed hopper 210 is funnel-shaped with a large opening at the top and a small opening at the bottom, making it easy to put solid materials into the feed hopper 210.

[0042] The grinding device 200 further includes a first driving member 270 and a main shaft 250. The first driving member 270 may be a motor that can drive the main shaft 250 to rotate. The main shaft 250 passes through the inner grinding body 222 and is fixed to the inner grinding body 222 to drive the inner grinding body 222 to rotate. In this embodiment, the grinding device 200 further includes a support frame 100. The motor is fixedly mounted below the support frame 100. The end of the main shaft 250 is connected to a pulley 280. The pulley 280 is connected to the output shaft of the motor via a transmission belt, so that the motor can drive the main shaft 250 to rotate via the transmission belt.

[0043] One end of the main shaft 250 extends into the interior of the feed hopper 210. A screw feeder 260 is connected to the main shaft 250 located inside the feed hopper 210. The screw feeder 260 includes a first stirring blade 261 connected to the main shaft 250 and a plurality of feeding blades 262 spaced apart along the main shaft 250. A single feeding blade 262 has a straight-line sheet structure, and a plurality of feeding blades 262 are spirally distributed on the main shaft. The first stirring blade 261 is vertically connected to the main shaft 250 and extends horizontally. After the solid material is poured into the feed hopper 210, the loose solid material may be blocked in the feed hopper 210 and unable to fall on its own. The first stirring blade 261 stirs the solid material in the feed hopper 210 to prevent stagnation in the transportation of the solid material. The setting of the feeding blade 262 can push the solid material to be transported to the grinding table 220. At the same time, since the first stirring blade 261 is spaced apart, the first stirring blade 261 that rotates with the main shaft 250 can provide shear force to initially crush the solid material with larger particles.

[0044] The grinding table 220 includes an inner grinding body 222 and an outer grinding body 221. The outer grinding body 221 is mounted on the inner grinding body 222 and can rotate relative to the outer grinding body 221. A grinding chamber is formed between the inner grinding body 222 and the outer grinding body 221. The upper end of the grinding chamber is connected to the feed hopper 210, through which solid material is introduced into the grinding chamber. The outer wall of the inner grinding body 222 is provided with a plurality of first grinding teeth 224 at intervals, and the inner wall of the outer grinding body 221 is provided with a plurality of second grinding teeth at intervals. The first and second grinding teeth 224 cooperate to crush the solid material into fine particles. The lower end of the grinding chamber is connected to the receiving hopper 230, and the ground solid material enters the receiving hopper 230. It can be understood that the raised first grinding teeth 224 are arranged at intervals on the wall of the inner grinding body 222, so that a first interval is formed between two adjacent first grinding teeth in each group of first grinding teeth, and a second interval is formed between two adjacent second grinding teeth in each group of second grinding teeth. The first interval and the second interval guide the solid material in the grinding chamber. When the solid material moves continuously downward along the contact surface, it will pass through multiple first intervals and multiple first grinding teeth 224 as well as multiple second intervals and multiple second grinding teeth, and be subjected to multiple shear forces. It will be crushed while falling and gradually ground, thereby solving the problem that it is difficult to effectively crush materials such as farmyard manure.

[0045] Furthermore, multiple groups of first grinding teeth 224 are arranged along the axial direction of the grinding table 220, and the first intervals of the multiple groups of first grinding teeth 224 become smaller layer by layer along the direction from the feed hopper 210 to the receiving hopper 230, and / or multiple groups of second grinding teeth are arranged along the axial direction of the grinding table 220, and the second intervals of the multiple groups of second grinding teeth become smaller layer by layer along the direction from the feed hopper 210 to the receiving hopper 230. Figures 2 to 5The following are schematic diagrams of the structure of the inner grinding body 222 in various embodiments. The first grinding teeth 224 on the inner grinding body 222 are used as an example to illustrate their structure. The beneficial effects of the first grinding teeth 224 also apply to the second grinding teeth and will not be repeated here. It is understood that during the grinding process, solid material particles become increasingly smaller from the feed direction to the discharge direction. Therefore, the spacing between the two first grinding teeth 224 can be adaptively reduced to prevent excessive flow of solid material within the grinding chamber, which could result in the solid material being discharged from the grinding chamber before being fully ground. Furthermore, as the spacing between adjacent first grinding teeth 224 in each group of first grinding teeth 224 decreases in the direction from the feed hopper 210 to the receiving hopper 230, the number of first grinding teeth 224 in each group increases, resulting in a denser arrangement. Therefore, even fine particles near the discharge point can be fully ground, effectively controlling the fineness of the material, ensuring the discharge particle size, and significantly improving grinding efficiency.

[0046] Optionally, the width of the first grinding teeth 224 decreases layer by layer, and / or the width of the second grinding teeth decreases layer by layer. Figure 2-5 , the width of the first grinding teeth 224 is designed to become smaller layer by layer, and the number of the first grinding teeth 224 can also be increased layer by layer, thereby achieving a more detailed grinding effect. Figure 2 As shown, the first grinding teeth 224 can be configured as being wider at the top and narrower at the bottom, and / or the second grinding teeth can be configured as being wider at the top and narrower at the bottom. Alternatively, the teeth can be configured as being of equal width at the top and bottom. The cross-sectional shape of the first grinding teeth 224 can be a triangle, parallelogram, trapezoid, or rectangle, and / or the cross-sectional shape of the second grinding teeth can be a triangle, parallelogram, trapezoid, or rectangle, etc.

[0047] In this embodiment, the inner grinding body 222 has a frustum-shaped structure. Each set of first grinding teeth 224 is arranged along a generatrix of the inner grinding body 222 or is arranged obliquely relative to the generatrix of the inner grinding body 222, and / or each set of second grinding teeth is arranged along a generatrix of the inner grinding body 222 or is arranged obliquely relative to the generatrix of the inner grinding body 222. The first grinding teeth 224 and the second grinding teeth can be inclined leftward or rightward along the generatrix of the inner grinding body 222, and the inclination directions of the first grinding teeth 224 and the second grinding teeth can be the same or different. Figure 3 It is a schematic structural diagram showing that the first grinding teeth 224 are arranged along the generatrix of the inner grinding body 222 . Figure 4 The figure shows a schematic structural diagram of the first grinding tooth 224 tilting to the right along the generatrix of the inner grinding body 222. Figure 5The figure shows a schematic diagram of a structure in which the first grinding teeth 224 are tilted to the left along the generatrix of the inner grinding body 222. The inner grinding body 222 is configured to be in the shape of a cone, and correspondingly, the outer grinding body 221 is also in the shape of a cone, which is conducive to the slow falling of solid materials and prolongs the residence time of the solid materials in the grinding chamber, so that there is sufficient time to grind the solid materials to a particle size that meets the irrigation requirements. Optionally, the grinding device 200 also includes an upper circular surface and a lower circular surface, the top of the inner grinding body 222 is fixed to the upper circular surface by screws, and the bottom is fixed to the lower circular surface by a fixing block 229 and a second fixing pin 228, and the upper circular surface and the lower circular surface are connected by a connecting piece 226, and both the upper circular surface and the lower circular surface are fixed to the main shaft 250. In other embodiments, the grinding table 220 can be cylindrical or have other structural forms, which are not listed here.

[0048] Furthermore, the grinding device 200 further includes an adjusting knob 240, which is threadedly connected to the support frame 100 and has an end abutting against the outer grinding body 221, for adjusting the gap between the outer grinding body 221 and the inner grinding body 222. Figure 6 The support frame 100 is used to provide support for the feed hopper 210 and the grinding table 220. The bottom of the grinding table 220 is placed on a platform of the support frame 100. The adjusting knob 240 can be a bolt, and a threaded hole is provided on the platform. The bottom of the grinding table 220 is provided with a blind hole. The adjusting knob 240 is screwed into the threaded hole on the platform and rests on the blind hole at the bottom of the grinding table 220. There can be multiple adjusting knobs 240, and the multiple adjusting knobs 240 are arranged symmetrically about the center of the grinding table 220. The adjusting knob 240 can play a role in positioning the grinding table 220, ensuring that the inner grinding body 222 and the outer grinding body 221 are coaxial, ensuring the horizontality of the outer grinding body 221, and preventing the inner grinding body 222 and the outer grinding body 221 from having uneven gaps along the circumferential direction, which causes some solid materials to not be ground or to be ground unevenly. By rotating the adjustment knob 240, the height of the outer grinding body 221 can be adjusted, thereby adjusting the gap between the outer grinding body 221 and the inner grinding body 222, thereby making the gap size uniform, meeting the grinding requirements of the solid material and making the ground solid material more uniform.

[0049] Optionally, continue with Figure 6The bottom of the outer grinding body 221 is fixed to a support plate of the support frame 100, and a first fixing pin 227 is provided to increase the stability of the connection with the support frame 100. The outer grinding body 221 also includes a fixing portion 223, on which a weight fixing pin 225 is provided for placing a counterweight. The counterweight can be a lead block with a through hole. The weight fixing pin 225 is a rod-shaped structure. The lead block is mounted on the weight fixing pin 225 to ensure that the mass of the lead block on each weight fixing pin 225 is equal. The mass of the lead block is set according to actual needs. Among them, the fixing portion 223 is a boss extending outward from the bottom of the outer grinding body 221. It can provide stable support for the outer grinding body 221, increase the contact area between the outer grinding body 221 and the support frame 100, and increase the stability of the overall structure. The weight fixing pin 225 is set at the outer edge of the fixing portion 223, away from the center of the outer grinding body 221, to provide greater force. The weighted body fixing pins 225 can be provided in a plurality, and the plurality of weighted body fixing pins 225 are centrally symmetrically arranged. In this embodiment, there are four weighted body fixing pins 225, and in other embodiments, there may be two, six, or eight weighted body fixing pins. It is understood that when there is an excessive amount of solid material in the grinding chamber or the particle size is large, the outer grinding body 221 may be lifted, resulting in an excessively large gap in the grinding chamber, which may result in an inability to perform the grinding function or a poor grinding effect. Therefore, by adding a counterweight, the weight of the outer grinding body 221 is increased to increase the bond between the grinding surfaces, ensuring that the gap in the grinding chamber is sufficient to allow the solid material to be finely ground.

[0050] The ground solid material falls into the receiving hopper 230 , which has a liquid inlet 231 at one end and a solid-liquid material outlet 232 at the other end. The bottom of the receiving hopper 230 is tilted, which facilitates the solid-liquid material to flow to the first outlet 311 .

[0051] After the solid-liquid materials flow out from the first outlet 311, they enter the solid-liquid separation device 300 for filtration and separation. The solid-liquid separation device 300 includes a first collecting tube 310, a filter screen 320 and a lifting paddle 330. Among them, the first collecting tube 310 is a vertically arranged circular tubular structure, and the solid-liquid material outlet 232 is connected to one end of the first collecting tube 310. The filter screen 320 is located in the first collecting tube 310 and has a tubular structure. A first channel is formed between the filter screen 320 and the inner wall of the first collecting tube 310. The fineness of the filter screen 320 should be selected according to needs. In this embodiment, the pore size of the filter screen 320 can be as small as 75 microns (i.e., 1000 mesh). The lifting paddle 330 is located within the filter 320 and is connected to a second drive member 350, which can be a motor. A first outlet 311 and a second outlet 312 are provided at opposite ends of the first collection tube 310. Specifically, the first outlet 311 is located at the lower end of the first collection tube 310, and the second outlet 312 is located at the upper end of the first collection tube 310. The first channel 311 is connected to the first outlet 311. The filter 320 filters the solid and liquid materials. After the solid and liquid materials enter the tubular filter 320, the primary filtered material (smaller particles that can be filtered by the filter 320) flows out of the filter 320 into the first channel and then out of the first outlet 311, which is connected to the first channel. The primary separated material (larger particles that cannot flow out of the filter 320) is transported upward by the lifting paddle 330 to the second outlet 312 for discharge. Optionally, the second outlet 312 is connected to a material guide trough 340 , and the once separated material flowing out of the material guide trough 340 flows to a collection bucket, or the material guide trough 340 is connected to the feed hopper 210 , so that the once separated material returns to the feed hopper 210 for re-grinding.

[0052] Further, if Figure 8 As shown, the lifting paddle 330 includes a paddle shaft, a second stirring blade 331, and a plurality of lifting blades 332 spaced apart along the paddle shaft. A single lifting blade 332 has a straight-line sheet structure, and the plurality of lifting blades 332 are distributed in a spiral pattern along the paddle shaft. The second stirring blade 331 is connected to the paddle shaft perpendicularly and extends horizontally, which can prevent solid and liquid materials from accumulating at the bottom of the lifting paddle 330 and clogging the filter screen 320. The spiral distribution of the lifting blades 332 facilitates the lifting of the material during the rotation of the lifting paddle 330, and also facilitates the primary filtered material to be thrown out of the filter screen 320 into the first channel and then out of the first outlet 311. Due to the bonding effect between the material particles, the once separated material will carry some small-sized materials with it during the process of being transported upward by the lifting paddle 330. The lifting blades 332 are arranged at intervals, which can make the small-sized materials fall back to the bottom of the first collecting pipe 310. The once filtered material flows out from the first outlet 311, and the once separated material is lifted again by the lifting blades 332, thereby realizing multiple lifting and filtering of the material to ensure that the material fineness meets the use requirements.

[0053] After primary filtration, primary filtered material that meets usage requirements can be used directly for irrigation without secondary filtration. However, primary filtered material that does not meet usage requirements can flow out of the first outlet 311 and enter the ultrafine separation device 400 for secondary filtration. The ultrafine separation device 400 has a third outlet 450 and a fourth outlet 460. After the primary filtered material is filtered by the ultrafine separation device 400, it becomes secondary filtered material and secondary separated material. The secondary filtered material flows out of the fourth outlet 460, and the secondary separated material is discharged through the third outlet 450.

[0054] Furthermore, the ultrafine separation device 400 also includes a pump 410, a pipeline 420, a filter tube 430, and a second collection tube 440. In one embodiment, the first outlet 311 is connected to the pump 410, which is connected to the pipeline 420. The filter tube 430 is disposed within the second collection tube 440. The third outlet 450 and the fourth outlet 460 are disposed on the second collection tube 440. A second channel is formed between the filter tube 430 and the inner wall of the second collection tube 440. The pipeline 420 is connected to the second channel, the third outlet 450 is connected to the second channel, and the fourth outlet 460 is connected to the filter tube 430. The solid and liquid materials enter the second channel through the pipeline 420. Optionally, a valve 470 and a pressure gauge 480 are provided at the fourth outlet 460. The pressure gauge 480 is used to control the opening of the valve 470 to control the flow of the secondary filtered material into the second channel. The filter tube 430 may be a 30-50 nanometer ceramic membrane tube. The secondary filtered material filtered by the filter tube 430 flows out of the fourth outlet 460 and can be directly used for irrigation. The secondary separated material not filtered by the filter tube 430 flows out of the third outlet 450. In another embodiment, the first outlet 311 is connected to the pump 410, which is connected to the pipeline 420. The filter tube 430 is disposed within the second collection tube 440. The third outlet 450 and the fourth outlet 460 are disposed on the second collection tube 440. A second channel is formed between the filter tube 430 and the inner wall of the second collection tube 440. The pipeline 420 is connected to the filter tube 430, the third outlet 450 is connected to the filter tube 430, and the fourth outlet 460 is connected to the second channel. Solid and liquid materials enter the filter tube 430 through the pipeline 420. The secondary filtered material passing through the filter tube 430 flows out of the fourth outlet 460 for irrigation. The secondary separated material not filtered by the filter tube 430 flows out of the third outlet 450.

[0055] Example 2

[0056] The difference between this embodiment and the first embodiment is that the grinding table 220 is a horizontal structure. Figure 9As shown, both the outer grinding body 221 and the inner grinding body 222 are frusto-conical structures with horizontal axes. The outer grinding body 221 is sleeved around the inner grinding body 222, forming a grinding chamber. A main shaft 250 extends along the inner grinding body 222's axis. One end of the main shaft 250 is connected to a first drive member 270, and the other end is sleeved with a bearing. The inner ring of the bearing is fixed to the main shaft 250, while the outer ring is fixed to the support frame 100. The first drive member 270 drives the main shaft 250 to rotate, thereby driving the inner grinding body 222 to rotate. The outer grinding body 221 is fixed to the support frame 100. Its end extends a distance in the direction of the feed, and the upper portion is connected to the feed hopper 210. A screw feeder 260 is mounted on the main shaft 250 within this section. After solid material enters the feed hopper 210, it is horizontally transported to the grinding chamber by the screw feeder 260, where it is ground and then falls into the receiving hopper 230.

[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A water and fertilizer integrated machine, characterized in that: include: A grinding device (200), the grinding device (200) comprising a feed hopper (210), a grinding table (220) and a receiving hopper (230), the grinding table (220) being respectively connected to the feed hopper (210) and the receiving hopper (230), solid material enters the grinding table (220) through the feed hopper (210) and is ground by the grinding table (220), the ground solid material falls into the receiving hopper (230), the receiving hopper (230) is provided with a liquid inlet (231) and a solid-liquid material outlet (232), liquid enters through the liquid inlet (231) and mixes with the solid material to form a solid-liquid material, and then flows out from the solid-liquid material outlet (232); a solid-liquid separation device (300), the solid-liquid separation device (300) being located on one side of the grinding device (200), one end of the solid-liquid separation device (300) being connected to the solid-liquid material outlet (232), the solid-liquid separation device (300) having a first outlet (311) and a second outlet (312), the solid-liquid material being filtered by the solid-liquid separation device (300) forming a primary filtered material and a primary separated material, the primary filtered material flowing out through the first outlet (311), and the primary separated material being discharged through the second outlet (312); The grinding table (220) includes an inner grinding body (222) and an outer grinding body (221) sleeved on the outer surface of the inner grinding body (222); the inner grinding body (222) rotates relative to the outer grinding body (221) and forms a grinding chamber with the outer grinding body (221); the two ends of the grinding chamber are respectively connected to the feed hopper (210) and the receiving hopper (230); the outer wall of the inner grinding body (222) is provided with a plurality of first grinding teeth (224); the inner wall of the outer grinding body (221) is provided with a plurality of second grinding teeth; the first grinding teeth (224) and the second grinding teeth cooperate with each other to grind the solid material; The inner grinding body (222) is fixedly connected to a main shaft (250) and is driven to rotate by the main shaft (250). One end of the main shaft (250) is located in the feed hopper (210) and is connected to a screw feeder (260). The screw feeder (260) includes a first stirring blade (261) connected to the main shaft (250) and a plurality of feeding blades (262) connected to the main shaft (250) and arranged at intervals. The plurality of feeding blades (262) are distributed in a spiral shape. The solid material is stirred by the first stirring blade (261) and then transported to the grinding table (220) through the feeding blades (262). The solid-liquid separation device (300) includes a first collecting pipe (310), a filter screen (320) and a lifting paddle (330), the solid-liquid material outlet (232) is connected to one end of the first collecting pipe (310), and the filter screen (320) is located in the first collecting pipe (310) and has a tubular structure.

2. The water-fertilizer integrated machine according to claim 1, characterized in that: Multiple groups of the first grinding teeth (224) are arranged along the axial direction of the grinding table (220), and the interval between two adjacent first grinding teeth (224) in each group of the first grinding teeth (224) is a first interval. Along the direction from the feed hopper (210) to the receiving hopper (230), the first intervals of the multiple groups of the first grinding teeth (224) become smaller layer by layer; And / or, multiple groups of second grinding teeth are arranged along the axial direction of the grinding table (220), the interval between two adjacent second grinding teeth in each group of second grinding teeth is a second interval, and the second intervals of multiple groups of second grinding teeth become smaller layer by layer along the direction from the feed hopper (210) to the receiving hopper (230).

3. The water-fertilizer integrated machine according to claim 2, characterized in that: The width of the first grinding teeth (224) decreases layer by layer, and / or the width of the second grinding teeth decreases layer by layer.

4. The water-fertilizer integrated machine according to claim 2, characterized in that: The inner grinding body (222) is a frustum structure, and each group of the first grinding teeth (224) is arranged along the generatrix of the inner grinding body (222) or is arranged obliquely relative to the generatrix of the inner grinding body (222); And / or, the outer grinding body (221) is a frustum structure, and each group of the second grinding teeth is arranged along the generatrix of the outer grinding body (221) or is arranged obliquely relative to the generatrix of the outer grinding body (221).

5. The integrated water and fertilizer machine according to claim 1, characterized in that: The grinding device (200) further comprises a support frame (100) and an adjusting knob (240), wherein the adjusting knob (240) is threadedly connected to the support frame (100) and an end thereof abuts against the outer grinding body (221) to adjust the gap between the outer grinding body (221) and the inner grinding body (222).

6. The water-fertilizer integrated machine according to claim 5, characterized in that: The outer grinding body (221) comprises a fixing portion (223), which is a boss extending outward from the bottom of the outer grinding body (221). A weight body fixing pin (225) is provided on the fixing portion (223), and the weight body fixing pin (225) is used to place a counterweight.

7. The integrated water and fertilizer machine according to claim 1, characterized in that: A first channel is formed between the filter screen (320) and the inner wall of the first collecting pipe (310), the first outlet (311) and the second outlet (312) are arranged at both ends of the first collecting pipe (310), the first channel is communicated with the first outlet (311), the lifting paddle (330) is located in the filter screen (320), the solid and liquid materials transported by the lifting paddle (330) are filtered by the filter screen (320), the primary filtered materials passing through the filter screen (320) flow into the first channel and flow out through the first outlet (311), and the primary separated materials that have not passed through the filter screen (320) flow out through the second outlet (312).

8. The integrated water and fertilizer machine according to any one of claims 1 to 7, characterized in that: The invention also includes an ultrafine separation device (400), one end of which is connected to the first outlet (311), and the ultrafine separation device (400) has a third outlet (450) and a fourth outlet (460). The primary filtered material is filtered by the ultrafine separation device (400) to form a secondary filtered material and a secondary separated material. The secondary filtered material flows out through the fourth outlet (460), and the secondary separated material is discharged through the third outlet (450).

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