A fertilizer-soil mixing structure, equipment and method for managing and draining salt from coastal saline-alkali land

Abstract

The present invention relates to the technical field of saline-alkali land improvement equipment, and is a fertilizer-soil mixing structure, coastal saline-alkali land management and salt discharge equipment and method. The fertilizer-soil mixing structure includes a soil feed box, a receiving tray, a fertilizer feed hopper, a discharge box, and a stirring assembly. The central axis of the soil feed box is vertically arranged, and a plurality of first through holes are provided on the bottom surface of the soil feed box. The receiving tray is arranged inside the soil feed box, and a plurality of second through holes are provided on the edge of the receiving tray. The stirring assembly includes a driver, a stirring element, and a mixing element. The two ends of the stirring element are respectively connected to the output end of the driver and the center of the top surface of the receiving tray. The mixing element is fixedly arranged at the center of the bottom surface of the receiving tray. When the present invention is in use, the soil can quickly leave the soil feed box through the plurality of first through holes, and the organic fertilizer can quickly leave the fertilizer feed hopper through the plurality of second through holes. The mixing element can fully contact with the soil and the organic fertilizer during rotation, thereby improving the efficiency of mixing the soil and the organic fertilizer.

Description

Technical Field

[0001] The present invention relates to the technical field of saline-alkali land improvement equipment, and specifically relates to a fertilizer-soil mixing structure, and equipment and methods for managing and draining salt from coastal saline-alkali land. Background Art

[0002] Coastal saline-alkali land is a special type of land in coastal areas that is affected by seawater infiltration, tidal action, and other factors, resulting in excessive accumulation of salt in the soil. Its high salt content and high osmotic pressure hinder plant growth, resulting in barrenness and sparse vegetation. When improving saline-alkali land, organic fertilizer can be used to decompose and transform into humus through microorganisms. This humus can then react with sodium carbonate to form sodium humate, reducing soil alkalinity. A mixing device is used to thoroughly mix the organic fertilizer with the saline-alkali soil, followed by backfilling and covering. This allows the organic fertilizer to fully exert its improving effects. For example, Chinese invention patent application number "CN202311756791.6" discloses a saline-alkali land salt removal device and its use method. During use, the device drives a mixing roller, which rotates and crushes lumpy soil. The mixing roller is shaped like two equal-sized circular cones with their larger diameter ends connected. Small volumes of soil and organic fertilizer pass through the gap between the junction of the upper and lower circular cones and the mixing hopper, enter the cavity of the lower circular cone through the feed hole, and are then rolled and mixed. The mixture is then discharged to the ground through the discharge hole.

[0003] The disadvantage of this device is that the mixing roller is arranged at an angle, which causes the soil and organic fertilizer to accumulate at the bottom of the mixing roller after entering the mixing bucket. Therefore, during the rotation of the mixing roller, the mixing roller rotated to the upper side is always away from the soil and organic fertilizer. The soil and organic fertilizer can only enter the cavity of the lower cone from the gap between the mixing roller and the bottom of the mixing bucket. Even if there is a gap at the top of the mixing bucket, the soil and organic fertilizer will not move to this position. Only the lower side of the mixing roller can mix the soil and organic fertilizer. Therefore, this device has the problem of low mixing efficiency of the soil and organic fertilizer. Summary of the Invention

[0004] The first aspect of the present invention is to provide a fertilizer-soil mixing structure, in which soil can quickly exit a soil feed box through a plurality of first through-holes, and organic fertilizer can quickly exit a fertilizer feed hopper through a plurality of second through-holes. The mixing element can fully contact the soil and organic fertilizer during rotation, thereby improving the efficiency of soil and organic fertilizer mixing. The second aspect of the present invention is to provide a device for draining salt from coastal saline-alkali land. The third aspect of the present invention is to provide a method for using the device for draining salt from coastal saline-alkali land.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fertilizer-soil mixing structure, comprising: a soil feeding box, the soil feeding box is an annular box body, the central axis of the soil feeding box is vertically arranged, and the bottom surface of the soil feeding box is provided with a plurality of first through holes distributed in an annular shape; a receiving tray is arranged inside the soil feeding box, the central axis of the receiving tray is collinear with the central axis of the soil feeding box, and the edge of the receiving tray is provided with a plurality of second through holes distributed in an annular shape; a fertilizer feeding hopper is fixedly arranged on the top of the soil feeding box and is located directly above the receiving tray; a discharge box is fixedly arranged at the bottom of the soil feeding box, and the discharge box is a hemispherical box body; a stirring assembly, the stirring assembly includes a driver, a stirring element and a mixing element, the driver and the stirring element are both arranged in the fertilizer feeding hopper, the two ends of the stirring element are respectively connected to the output end of the driver and the center of the top surface of the receiving tray, and the mixing element is arranged in the discharge box and fixedly arranged at the center of the bottom surface of the receiving tray.

[0006] In the first technical solution, preferably, it also includes a first crushing assembly, which includes an annular baffle, the receiving plate is fixedly arranged at the bottom of the inner wall of the annular baffle, the top of the annular baffle is sleeved on the bottom of the outer wall of the fertilizer feed hopper, and can slide along the outer wall of the fertilizer feed hopper, and a push plate is fixedly arranged on the outer wall of the annular baffle.

[0007] In the first technical solution, preferably, it also includes a second crushing assembly, which includes: a plurality of extrusion blocks, which are radially fixed on the top surface of the receiving plate, the bottom of the fertilizer feed hopper is provided with an annular cutting slope, the middle part of the annular cutting slope is provided with a plurality of evenly distributed first crushing teeth, the top surface of the second end of the extrusion block is provided with a crushing groove, and the inner bottom surface of the crushing groove is provided with a plurality of evenly distributed second crushing teeth; a plurality of screens, one of which is provided between two adjacent extrusion blocks; and a plurality of guide blocks, one of which is provided under each screen.

[0008] In the first technical solution, preferably, the screen is fan-shaped, and the height of the middle portion is greater than the height of the two ends, and the shape of the guide block matches the shape of the screen.

[0009] In the first technical solution, preferably, it also includes a material distribution component, which includes: a load-bearing ring, fixedly arranged at the center of the bottom surface of the soil feed box; a first material distribution rack, arranged on the inner side of the load-bearing ring and connected to the inner wall of the load-bearing ring; a second material distribution rack, arranged on the inner side of the discharge box and connected to the inner wall of the discharge box.

[0010] In the first technical solution, preferably, the material distribution assembly also includes a supporting frame, which is arranged on the inner side of the supporting ring and below the first material distribution frame, and the annular baffle is arranged above the supporting ring, and the bottom surface of the annular baffle can slide along the top surface of the supporting ring.

[0011] In the first technical solution, preferably, the first material distribution rack includes a plurality of first material receiving plates distributed radially, a first material discharge hole is provided at the center of the first material distribution rack, and a first material receiving groove is provided on the top surface of the first material receiving plate; a second material discharge hole is provided at the center of the supporting rack, and a plurality of third material discharge holes arranged around the second material discharge hole are further provided on the supporting rack; the second material distribution rack includes a plurality of second material receiving plates distributed radially, a fourth material discharge hole is provided at the center of the second material distribution rack, and a second material receiving groove is provided on the top surface of the second material receiving plate.

[0012] In the first technical solution, preferably, the driver includes an assembly frame and a motor, the stirring element includes a first driving rod, several first stirring rods and a cover plate, and the mixing element includes a second driving rod, several second stirring rods and several stirring blades; the two ends of the first driving rod are respectively connected to the output end of the motor and the top surface of the receiving tray, and several first stirring rods are fixedly arranged in the middle of the side wall of the first driving rod, and the cover plate is sleeved on the bottom of the first driving rod; the top of the second driving rod is connected to the bottom surface of the receiving tray, and the bottom of the second driving rod passes through the first discharge hole, the second discharge hole and the fourth discharge hole in sequence, and several second stirring rods are fixedly arranged at the bottom of the side wall of the second driving rod, the diameter of the middle part of the second driving rod is smaller than the diameter of the two ends, and the stirring blade is arranged on the side wall of the middle part of the second driving rod, the top of the stirring blade is located above the second discharge hole, and the bottom of the stirring blade is located below the fourth discharge hole.

[0013] In the second technical solution, a coastal saline-alkali land management and salt drainage device includes the fertilizer-soil mixing structure as described in the first technical solution, and also includes a frame. The soil feed box is fixedly arranged in the middle of the frame, the front end of the frame is provided with a front plow, the rear end of the frame is provided with a rear plow, and a conveying part is provided between the front plow and the soil feed box.

[0014] In the third technical solution, a method for using a coastal saline-alkali land treatment and salt discharge device uses the coastal saline-alkali land treatment and salt discharge device as described in the second technical solution, including: step one, installing the soil feed box on the frame so that the soil feed box, the fertilizer feed hopper and the discharge box are all fixedly connected to the frame, and adding organic fertilizer into the fertilizer feed hopper; step two, driving the frame forward, the front plow turns over the soil, and the soil is scooped up by the conveying part and transported to the soil feed box, the stirring component, the first crushing component and the second crushing component work together, the driver drives the receiving plate to rotate, and the first crushing component crushes the soil so that the soil passes through various positions The first through hole falls, and the second crushing component breaks the organic fertilizer so that the organic fertilizer falls through the second through holes at various positions; in step three, the material dividing component concentrates a part of the soil and the organic fertilizer together at the inner center of the discharge box, and concentrates another part of the soil and the organic fertilizer together at the inner edge of the discharge box; in step four, the receiving tray drives the mixing element to rotate, and the mixing element mixes the soil at the inner edge of the discharge box with the organic fertilizer, and the mixing element also mixes the soil at the inner center of the discharge box with the organic fertilizer; in step five, the discharge pipe at the bottom of the discharge box discharges the mixed soil and organic fertilizer to the ground, and the rear plow makes the soil and organic fertilizer be turned over and mixed in the saline-alkali land.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) When the present invention is in use, soil can quickly leave the soil feed box through the plurality of first through holes, and organic fertilizer can quickly leave the fertilizer feed hopper through the plurality of second through holes. The mixing element can fully contact with the soil and organic fertilizer during rotation, thereby improving the efficiency of mixing the soil and organic fertilizer.

[0017] (2) The present invention also includes a second crushing assembly, which comprises a plurality of extrusion blocks. The bottom of the fertilizer feed hopper is provided with an annular cutting bevel. The receiving tray is capable of driving the extrusion blocks to rotate together. The gap between the extrusion blocks and the annular cutting bevel gradually decreases and then gradually increases. During this process, the organic fertilizer on the top of the extrusion blocks is crushed and rapidly enters the third through hole. Finally, it passes through the third through hole into the second through hole and falls into the discharge box.

[0018] (3) The present invention further includes a material distribution assembly, which distributes a portion of the soil and organic fertilizer to the inner center of the discharge box and distributes another portion of the soil and organic fertilizer to the inner edge of the discharge box. The mixing unit mixes the soil and organic fertilizer at the inner edge of the discharge box and simultaneously mixes the soil and organic fertilizer at the inner center of the discharge box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an axonometric drawing of the present invention;

[0020] Figure 2 It is a front cross-sectional view of the present invention;

[0021] Figure 3 is an axonometric cross-sectional view of the soil feed box of the present invention;

[0022] Figure 4 This is an axonometric cross-sectional view of the receiving tray of the present invention;

[0023] Figure 5 is an axonometric cross-sectional view of the fertilizer feed hopper of the present invention;

[0024] Figure 6 This is a front cross-sectional view of the fertilizer feed hopper of the present invention;

[0025] Figure 7 It is an axonometric cross-sectional view of the discharge box in the present invention;

[0026] Figure 8 This is an axonometric view of the driver and stirring member connected to the receiving tray in the present invention;

[0027] Figure 9 This is an axonometric view of the mixing element and the receiving tray in the present invention after being connected;

[0028] Figure 10 This is an axonometric view of the first crushing assembly connected to the receiving tray in the present invention;

[0029] Figure 11 This is an axonometric view of the second crushing assembly connected to the receiving tray in the present invention;

[0030] Figure 12 This is an axonometric exploded view of the second crushing assembly of the present invention;

[0031] Figure 13 It is an axonometric view of the extrusion block in the present invention;

[0032] Figure 14 It is an axonometric view of the screen in the present invention;

[0033] Figure 15 This is an axonometric view of the material distribution assembly and the discharge box connected in the present invention;

[0034] Figure 16 This is an axonometric exploded view of the present invention.

[0035] Reference numerals include:

[0036] 1-soil feed box, 11-first through hole, 12-bump, 2-receiving plate, 21-second through hole, 22-annular slide, 3-fertilizer feed hopper, 31-annular cutting slope, 32-first crushing tooth, 4-discharge box, 5-stirring assembly, 51-driver, 511-assembly frame, 512-motor, 52-stirring element, 521-first driving rod, 522-first stirring rod, 523-cover plate, 53-mixing element, 531-second driving rod, 532-second stirring rod, 533-stirring blade, 6-first crushing assembly, 61-annular baffle, 62-push plate, 621-avoid Let groove, 7-second crushing assembly, 71-extrusion block, 711-third through hole, 712-crushing groove, 713-second crushing tooth, 714-feeding trough, 72-screen, 73-guide block, 731-arc surface, 8-material distribution assembly, 81-bearing ring, 82-first material distribution rack, 821-first material receiving plate, 8211-first material receiving trough, 822-first discharge hole, 83-second material distribution rack, 831-second material receiving plate, 8311-second material receiving trough, 832-fourth discharge hole, 84-bearing rack, 841-support rod, 842-second discharge hole, 843-third discharge hole. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention. Example 1

[0038] See also Figures 1-16The present invention provides a technical solution: a fertilizer-soil mixing structure, comprising a soil feed box 1, a receiving tray 2, a fertilizer feed hopper 3, a discharge box 4 and a stirring assembly 5. The bottom surface of the soil feed box 1 is provided with a plurality of first through holes 11. Since the soil feed box 1 is arranged vertically, when the soil from the saline-alkali land enters the soil feed box 1, it will not all slide to one side. The soil can quickly leave the soil feed box 1 through the first through holes 11 at various positions and fall into the discharge box 4. The edge of the receiving tray 2 is provided with a plurality of second through holes 21 distributed in a ring shape. Since the receiving tray 2 is arranged vertically, when the organic fertilizer in the fertilizer feed hopper 3 falls to the top surface of the receiving tray 2, it will not all slide to one side. The organic fertilizer can quickly fall into the discharge box 4 through the second through holes 21 at various positions. The stirring assembly 5 includes a driver 51, a stirring element 52, and a mixing element 53. When the driver 51 is in operation, it can drive the stirring element 52, the receiving tray 2, and the mixing element 53 to rotate together. The stirring element 52 can stir the organic fertilizer in the fertilizer feed hopper 3, accelerating the speed at which the organic fertilizer falls out of the fertilizer feed hopper 3. Because the discharge box 4 is a hemispherical box, when the mixing element 53 rotates to stir the soil and organic fertilizer that fall into the discharge box 4, the mixing element 53 can fully contact the soil and organic fertilizer, so that the soil and organic fertilizer are quickly mixed together, thereby improving the efficiency of the mixing of the soil and organic fertilizer.

[0039] See also Figure 1-Figure 3 and Figure 10 The present invention also includes a first crushing assembly 6, which includes an annular baffle 61 and a push plate 62. The inner bottom surface of the soil feed box 1 is provided with a plurality of protrusions 12, both ends of the protrusions 12 are pointed ends, and the bottom of the push plate 62 is provided with a plurality of avoidance grooves 621. When the organic fertilizer in the fertilizer feed hopper 3 falls to the top surface of the receiving tray 2, the annular baffle 61 can prevent the organic fertilizer from entering the soil feed box 1, ensuring that the organic fertilizer can only fall through the second through hole 21. When the receiving tray 2 rotates, it can drive the baffle 61 and the push plate 62 to rotate together. The top of the baffle 61 slides along the outer wall of the fertilizer feed hopper 3. While the push plate 62 performs a circular motion inside the soil feed box 1, the push plate 62 pushes the soil in the soil feed box 1 to also perform a circular motion. At this time, the protrusions 12 pass through the avoidance grooves 621 and break the soil into small pieces, allowing the soil to fall into the discharge box 4 more quickly through the first through hole 11.

[0040] See also Figure 1-Figure 7 and Figure 10-14The present invention also includes a second crushing assembly 7, which includes a plurality of extrusion blocks 71, a plurality of screens 72 and a plurality of guide blocks 73. The height of the first end of the extrusion block 71 is greater than the height of the second end, and the second end of the extrusion block 71 is located directly below the annular cutting bevel 31. The second end of the extrusion block 71 is also provided with a third through hole 711. When the organic fertilizer falls out of the fertilizer feed hopper 3, a portion of the organic fertilizer will fall onto the extrusion block 71, and the other portion of the organic fertilizer will fall onto the screen 72. The bottom of the fertilizer feed hopper 3 is provided with an annular cutting bevel 31. The organic fertilizer that falls onto the extrusion block 71 will enter the gap between the extrusion block 71 and the annular cutting bevel 31 along the top of the extrusion block 71. The receiving tray 2 can drive the extrusion block 71 to rotate together, and the gap between the extrusion block 71 and the annular cutting bevel 31 will first gradually decrease and then gradually increase. During this process, the organic fertilizer on the top of the extrusion block 71 is squeezed and crushed, and quickly enters the third through hole 711, and finally enters the second through hole 21 through the third through hole 711, and falls into the discharge box 4. In addition, small pieces of organic fertilizer that fall onto the screen 72 will directly pass through the screen 72 and fall onto the guide block 73. The top of the guide block 73 is provided with a curved surface 731. Small pieces of organic fertilizer slide along the curved surface 731 into the third through hole 711, and then enter the second through hole 21 through the third through hole 711, and fall into the discharge box 4. Large pieces of organic fertilizer that fall onto the screen 72 will slide along the screen 72 onto the extrusion block 71, and then be crushed through the cooperation of the extrusion block 71 and the annular cutting bevel 31.

[0041] See also Figure 1-Figure 7 and Figure 10-14The annular cutting bevel 31 is provided with several evenly distributed first crushing teeth 32 in the middle. A feed trough 714 is provided on the top surface of the first end of the extrusion block 71, and a crushing trough 712 is provided on the top surface of the second end of the extrusion block 71. The crushing trough 712 is an arc-shaped groove with both ends extending through the sidewalls of the extrusion block 71. The inner bottom surface of the crushing trough 712 is provided with several evenly distributed second crushing teeth 713, which correspond to the positions of the first crushing teeth 32. When organic fertilizer falls onto the extrusion block 71, it enters the feed trough 714 and then enters the crushing trough 712 through the feed trough 714. The width of the first end of the feed trough 714 is greater than that of the second end, which can help gather the organic fertilizer. As the extrusion block 71 rotates with the receiving tray 2, the first crushing teeth 32 continuously enter the crushing trough 712. The first crushing teeth 32, the second crushing teeth 713, and the annular cutting bevel 31 cooperate to complete the fertilizer crushing operation. Each extrusion block 71 has two third through holes 711, one at each end of the crushing groove 712. The crushed fertilizer on the extrusion block 71 can quickly enter the second through hole 21 through the third through holes 711 on both sides. The screen 72 is fan-shaped, with the middle height greater than the height at both ends. Therefore, large pieces of fertilizer that fall on the top of the screen 72 can quickly disperse to both sides and move to the extrusion blocks 71 on both sides. The shape of the guide block 73 matches the shape of the screen 72, ensuring that small pieces of fertilizer that pass through the screen 72 can quickly slide along the curved surface 731 and enter the third through holes 711.

[0042] See also Figure 1-Figure 7 and Figures 10-16 The present invention also includes a distributing assembly 8, which includes a bearing ring 81, a first distributing rack 82, and a second distributing rack 83. The bearing ring 81 is fixedly arranged at the center of the bottom surface of the soil feed box 1. The bearing ring 81 can prevent the organic fertilizer passing through the second through hole 21 from entering the soil feed box 1. The first distributing rack 82 is arranged on the inner side of the bearing ring 81, and the second distributing rack 83 is arranged on the inner side of the discharge box 4. The first distributing rack 82 can disperse the falling organic fertilizer, so that the organic fertilizer passing through the second through hole 21 is dispersed and moves to the edge and center of the discharge box 4 respectively. The second distributing rack 83 can disperse the falling organic fertilizer and soil, so that the organic fertilizer passing through the second through hole 21 and the soil passing through the first through hole 11 are both dispersed and move to the edge and center of the discharge box 4 respectively. This ensures that when the mixing element 53 rotates, the organic fertilizer and soil at various positions in the discharge box 4 are evenly distributed, further improving the efficiency of mixing the soil and organic fertilizer.

[0043] See also Figure 1-Figure 7 and Figures 10-16The material distribution assembly 8 also includes a carrier frame 84, which is fixedly connected to the inner wall of the carrier ring 81. A support rod 841 is fixedly provided on the top surface of the carrier frame 84, and an annular slide 22 is provided on the bottom surface of the receiving tray 2. The top of the support rod 841 extends into the annular slide 22. The annular baffle 61 is provided above the carrier ring 81, and the diameter of the carrier ring 81 is the same as the diameter of the annular baffle 61. When the receiving tray 2 drives the annular baffle 61 to rotate, the annular baffle 61 slides along the top surface of the carrier ring 81, and the top of the support rod 841 can slide along the annular slide 22. The carrier ring 81 can support the annular baffle 61, and the support rod 841 can support the receiving tray 2, thereby reducing the burden on the driver 51 and extending the service life of the driver 51.

[0044] See also Figure 1-Figure 7 and Figures 10-16 The first material distribution rack 82 includes a plurality of first material receiving plates 821 distributed radially. The height of the first end of the first material receiving plate 821 is higher than the height of the second end, and the first material receiving plate 821 is fixedly connected to the inner side wall of the supporting ring 81. A first discharge hole 822 is provided at the center of the first material distribution rack 82, and a first material receiving groove 8211 is provided on the top surface of the first material receiving plate 821. The first material receiving groove 8211 is connected to the first discharge hole 822. A second discharge hole 842 is provided at the center of the supporting rack 84. The second discharge hole 842 corresponds to the position of the first discharge hole 822. The supporting rack 84 is also provided with a plurality of third discharge holes 843 arranged around the second discharge hole 842. The second material distribution rack 83 includes a plurality of second material receiving plates 831 distributed radially. The height of the first end of the second material receiving plate 831 is higher than the height of the second end, and the first material receiving plate 831 is fixedly connected to the inner side wall of the discharge box 4. A fourth material discharge hole 832 is provided at the center of the second material distribution rack 83 , and a second material receiving groove 8311 is provided on the top surface of the second material receiving plate 831 . The second material receiving groove 8311 is communicated with the fourth material discharge hole 832 .

[0045] Therefore, a portion of the organic fertilizer falling through the second through hole 21 will fall into the first receiving trough 8211, slide along the first receiving trough 8211 into the first discharge hole 822, then pass through the second discharge hole 842 and the fourth discharge hole 832 in sequence, and finally fall to the center of the discharge box 4. Another portion will first pass through the gap between two adjacent first receiving plates 821, then pass through the third discharge hole 843, and then pass through the gap between two adjacent second receiving plates 831, and finally fall to the edge of the discharge box 4. Meanwhile, a portion of the soil falling through the first through hole 11 will fall into the second receiving trough 8311, slide along the second receiving trough 8311 into the fourth discharge hole 832, and finally fall to the center of the discharge box 4. Another portion will first pass through the gap between two adjacent second receiving plates 831 and directly fall to the edge of the discharge box 4.

[0046] See also Figures 1-16 The driver 51 includes an assembly frame 511 and a motor 512, and the stirring member 52 includes a first driving rod 521, a plurality of first stirring rods 522, and a cover plate 523. When the stirring assembly 5 is working, the motor 512 drives the first driving rod 521 to rotate, and the first driving rod 521 drives the plurality of first stirring rods 522, the cover plate 523, and the receiving tray 2 to rotate together. The first stirring rod 522 stirs the organic fertilizer in the fertilizer feed hopper 3. The ends of the plurality of extrusion blocks 71 and the plurality of screens 72 away from the annular baffle 61 are all against the side wall of the cover plate 523. The cover plate 523 can prevent the organic fertilizer from falling into the gap between the plurality of extrusion blocks 71 at the center of the receiving tray 2, ensuring that the organic fertilizer can definitely move to the extrusion blocks 71 or the screens 72.

[0047] See also Figures 1-16 The mixing element 53 includes a second drive rod 531, a plurality of second stirring rods 532 and a plurality of stirring blades 533. When the receiving tray 2 rotates, it can drive the second drive rod 531, the plurality of second stirring rods 532 and the plurality of stirring blades 533 to rotate together. The diameters of the first discharge hole 822, the second discharge hole 842 and the third discharge hole 843 are all larger than the diameter of the second drive rod 531, and the diameter of the middle part of the second drive rod 531 is smaller than the diameter of the two ends. Therefore, organic fertilizer can quickly pass through the first discharge hole 822, the second discharge hole 842 and the fourth discharge hole 832, and soil can quickly pass through the fourth discharge hole 832. The top of the stirring blade 533 is located above the second discharge hole 842, and the bottom of the stirring blade 533 is located below the fourth discharge hole 832. In the process of the organic fertilizer and soil passing through the distributing component 8, the stirring blade 533 can achieve pre-mixing of the organic fertilizer and the soil. Therefore, the present invention can quickly mix the soil and organic fertilizer at the edge position of the discharge box 4 and uniformly through the rotation of the plurality of second stirring rods 532, and can quickly mix the soil and organic fertilizer at the center position of the discharge box 4 and uniformly through the rotation of the plurality of stirring blades 533. Example 2

[0048] See also Figures 1-16 A device for managing and draining salt from coastal saline-alkali land includes the fertilizer-soil mixing structure described in Example 1, as well as a frame. A soil feed box 1 is fixedly mounted in the middle of the frame. A front plow is provided at the front end of the frame, and a rear plow is provided at the rear end of the frame. A conveyor unit is provided between the front plow and the soil feed box (the frame, front plow, rear plow, and conveyor unit are not shown in the figure). In this embodiment, a soil inlet pipe is provided at the top of the soil feed box 1. The conveyor unit can transport scooped soil through the soil inlet pipe into the soil feed box 1. A discharge pipe is provided at the bottom of the discharge box 4, which can discharge the mixed soil and organic fertilizer out of the discharge box 4.

[0049] The frame, front plow, rear plow and conveying part are all existing technologies. The use method of the coastal saline-alkali land treatment and salt drainage equipment includes:

[0050] Step 1: Install the soil feed box 1 on the frame so that the soil feed box 1, the fertilizer feed hopper 3 and the discharge box 4 are all fixedly connected to the frame, and add organic fertilizer into the fertilizer feed hopper 3.

[0051] Step 2: The drive frame moves forward, the front plow turns up the soil, the soil is scooped up by the conveying part and transported to the soil feed box 1, the stirring assembly 5, the first crushing assembly 6 and the second crushing assembly 7 work together, the driver 51 drives the receiving tray 2 to rotate, the first crushing assembly 6 breaks the soil so that the soil falls through the first through holes 11 at various positions, and the second crushing assembly 7 breaks the organic fertilizer so that the organic fertilizer falls through the second through holes 21 at various positions.

[0052] Step 3: The material dividing component 8 concentrates a portion of the soil and the organic fertilizer at the inner center of the discharge box 4, and concentrates another portion of the soil and the organic fertilizer at the inner edge of the discharge box 4.

[0053] Step 4: The receiving tray 2 drives the mixing element 53 to rotate, and the mixing element 53 mixes the soil at the inner edge of the discharge box 4 with the organic fertilizer. The mixing element 53 also mixes the soil at the inner center of the discharge box 4 with the organic fertilizer.

[0054] Step 5: The discharge pipe at the bottom of the discharge box 4 discharges the mixed soil and organic fertilizer to the ground, and then the soil and organic fertilizer are plowed and mixed in the saline-alkali land.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0056] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fertilizer-soil mixing structure, characterized in that: include: A soil feed box, the soil feed box is an annular box body, the central axis of the soil feed box is vertically arranged, and the bottom surface of the soil feed box is provided with a plurality of first through holes distributed in an annular shape; A receiving tray is provided inside the soil feed box, wherein the central axis of the receiving tray is collinear with the central axis of the soil feed box, and a plurality of second through holes distributed in an annular shape are provided at the edge of the receiving tray; A fertilizer feed hopper is fixedly arranged on the top of the soil feed box and is located directly above the receiving tray; A discharge box is fixedly arranged at the bottom of the soil feed box, and the discharge box is a hemispherical box; A stirring assembly is arranged above the receiving tray; A first crushing assembly is provided at the edge of the receiving tray; The second crushing assembly is arranged between the receiving tray and the fertilizer feeding hopper. The second crushing assembly includes a plurality of extrusion blocks. The plurality of extrusion blocks are radially fixed on the top surface of the receiving tray. The bottom of the fertilizer feeding hopper is provided with an annular cutting slope. A material distribution assembly is provided below the receiving tray, and includes a bearing ring, a first material distribution rack, and a second material distribution rack. The first material distribution rack is provided inside the bearing ring, and the second material distribution rack is provided inside the discharge box. A plurality of evenly distributed first crushing teeth are provided in the middle of the annular cutting bevel, a crushing groove is provided on the top surface of the second end of the extrusion block, and a plurality of evenly distributed second crushing teeth are provided on the inner bottom surface of the crushing groove. The second crushing assembly also includes a plurality of screens and a plurality of guide blocks. A screen is provided between two adjacent extrusion blocks, and a guide block is provided under each screen.

2. The fertilizer-soil mixing structure according to claim 1, characterized in that: The stirring assembly includes a driver, a stirring element, and a mixing element. The driver and the stirring element are both arranged in the fertilizer feed hopper. The two ends of the stirring element are respectively connected to the output end of the driver and the center of the top surface of the receiving tray. The mixing element is arranged in the discharge box and fixedly arranged at the center of the bottom surface of the receiving tray. The first crushing assembly includes an annular baffle, the receiving tray is fixedly arranged on the bottom of the inner side wall of the annular baffle, the top of the annular baffle is sleeved on the bottom of the outer side wall of the fertilizer feed hopper and can slide along the outer side wall of the fertilizer feed hopper, and a push plate is fixedly arranged on the outer side wall of the annular baffle; The bearing ring is fixedly arranged at the bottom center of the soil feed box, the first distribution rack is connected to the inner side wall of the bearing ring, and the second distribution rack is connected to the inner side wall of the discharge box.

3. The fertilizer-soil mixing structure according to claim 2, characterized in that: The screen is fan-shaped, and the height of the middle portion is greater than the heights of the two ends. The shape of the guide block matches the shape of the screen.

4. The fertilizer-soil mixing structure according to claim 2, characterized in that: The material distribution assembly also includes a supporting frame, which is arranged on the inner side of the supporting ring and below the first material distribution frame. The annular baffle is arranged above the supporting ring, and the bottom surface of the annular baffle can slide along the top surface of the supporting ring.

5. The fertilizer-soil mixing structure according to claim 4, characterized in that: The first material distribution frame includes a plurality of first material receiving plates distributed in a radial pattern, a first material discharge hole is provided at the center of the first material distribution frame, and a first material receiving groove is provided on the top surface of the first material receiving plate; A second discharge hole is provided at the center of the carrier frame, and a plurality of third discharge holes are provided on the carrier frame around the second discharge hole; The second material distribution rack includes a plurality of second material receiving plates distributed in a radial pattern. A fourth material discharge hole is provided at the center of the second material distribution rack, and a second material receiving groove is provided on the top surface of the second material receiving plate.

6. The fertilizer-soil mixing structure according to claim 5, characterized in that: The driver includes an assembly frame and a motor, the stirring element includes a first driving rod, a plurality of first stirring rods and a cover plate, and the mixing element includes a second driving rod, a plurality of second stirring rods and a plurality of stirring blades; The two ends of the first driving rod are respectively connected to the output end of the motor and the top surface of the receiving tray, the first stirring rods are fixedly arranged in the middle of the side wall of the first driving rod, and the cover plate is sleeved on the bottom of the first driving rod; The top of the second driving rod is connected to the bottom surface of the receiving tray, and the bottom of the second driving rod passes through the first discharge hole, the second discharge hole and the fourth discharge hole in sequence. Several second stirring rods are fixedly arranged at the bottom of the side wall of the second driving rod. The diameter of the middle part of the second driving rod is smaller than the diameter of the two ends. The stirring blade is arranged on the side wall of the middle part of the second driving rod. The top of the stirring blade is located above the second discharge hole, and the bottom of the stirring blade is located below the fourth discharge hole.

7. A salt drainage device for treating and draining coastal saline-alkali land, comprising the fertilizer-soil mixing structure according to claim 3, characterized in that: The machine further comprises a frame, wherein the soil feed box is fixedly arranged in the middle of the frame, a front plow is provided at the front end of the frame, a rear plow is provided at the rear end of the frame, and a conveying portion is provided between the front plow and the soil feed box.

8. A method for using a device for treating and draining salt from a coastal saline-alkali land, comprising using the device for treating and draining salt from a coastal saline-alkali land as claimed in claim 7, characterized in that: include: Step 1: Install the soil feed box on the frame so that the soil feed box, the fertilizer feed hopper and the discharge box are all fixedly connected to the frame, and add organic fertilizer into the fertilizer feed hopper; Step 2: driving the frame to move forward, the front plow turns up the soil, the soil is scooped up by the conveying part and transported to the soil feeding box, the stirring assembly, the first crushing assembly and the second crushing assembly work together, the driver drives the receiving tray to rotate, the first crushing assembly crushes the soil so that the soil falls through the first through holes at various positions, and the second crushing assembly crushes the organic fertilizer so that the organic fertilizer falls through the second through holes at various positions; Step 3, the material distribution component collects a portion of the soil and the organic fertilizer together at the inner center of the discharge box, and collects another portion of the soil and the organic fertilizer together at the inner edge of the discharge box; Step 4: The receiving tray drives the mixing element to rotate, and the mixing element mixes the soil at the inner edge of the discharge box with the organic fertilizer. The mixing element also mixes the soil at the inner center of the discharge box with the organic fertilizer. Step 5: The discharge pipe at the bottom of the discharge box discharges the mixed soil and organic fertilizer to the ground, and the rear plowing makes the soil and organic fertilizer be plowed and mixed in the saline-alkali land.

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