Fertilizer and soil mixing structure, coast saline-alkali soil treatment and salt elimination equipment and coast saline-alkali soil treatment and salt elimination method

Abstract

The invention relates to the technical field of saline-alkali soil improvement equipment, in particular to a fertilizer and soil mixing structure and coast saline-alkali soil treatment salt elimination equipment and method. The fertilizer and soil mixing structure comprises a soil feeding box, a material receiving disc, a fertilizer feeding hopper, a discharging box and a stirring assembly. The central axis of the soil feeding box is vertically arranged, a plurality of first through holes are formed in the bottom face of the soil feeding box, the material receiving disc is arranged in the soil feeding box, and a plurality of second through holes are formed in the edge of the material receiving disc. The stirring assembly comprises a driver, a stirring piece and a mixing piece, the two ends of the stirring piece are connected with the output end of the driver and the center of the top face of the material receiving disc respectively, and the mixing piece is fixedly arranged at the center of the bottom face of the material receiving disc. When the device is used, soil can rapidly leave the soil feeding box through the first through holes, organic fertilizer can rapidly leave the fertilizer feeding hopper through the second through holes, the mixing piece can make full contact with the soil and the organic fertilizer during rotation, and the mixing efficiency of the soil and the organic fertilizer is improved.

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 land formed by excessive accumulation of soil salt in coastal areas due to the influence of seawater infiltration, tidal action, etc. It has a high salt content and a large osmotic pressure of the solution, which affects plant growth. It is mostly barren and sparsely vegetated. When improving saline-alkali land, organic fertilizer can be used to form humus through microbial decomposition and transformation, and can react with sodium carbonate to form sodium humate to reduce soil alkalinity. After the organic fertilizer is fully mixed with the saline-alkali soil using a mixing device, it is backfilled and covered, which is conducive to the full play of the improvement effect of the organic fertilizer. For example, the Chinese invention patent with patent application number "CN202311756791.6" discloses a salt discharge device for saline-alkali land and a method of use thereof. When the device is in use, a driving motor drives a mixing roller to rotate, rolls and crushes the block soil, and the mixing roller is in the shape of two equal-sized truncated cones with large diameter end faces connected. Small volume soil and organic fertilizer pass through the gap between the upper truncated cone and the lower truncated cone and the mixing bucket, and enter the cavity of the lower truncated cone through the feed hole for rolling mixing, and then discharged to the ground from 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 rotating 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 propose a fertilizer-soil mixing structure, in which soil can quickly leave the soil feed box through a plurality of first through holes, and organic fertilizer can quickly leave the fertilizer feed hopper through a plurality of second through holes, and 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. The second aspect of the present invention is to propose a salt-draining device for the treatment of coastal saline-alkali land. The third aspect of the present invention is to propose a method for using the salt-draining device for the treatment of coastal saline-alkali land.

[0005] To achieve the above object, the present invention provides the following technical solution: A fertilizer-soil mixing structure, comprising: 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 a ring shape; a receiving tray, arranged inside the soil feed box, 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 a ring shape are provided at the edge of the receiving tray; a fertilizer feed hopper, fixedly arranged on the top of the soil feed box and located directly above the receiving tray; a discharge box, fixedly arranged at the bottom of the soil feed box, the discharge box is a hemispherical box body; a stirring assembly, the stirring assembly includes a driver, a stirring member and a mixing member, the driver and the stirring member are both arranged in the fertilizer feed hopper, two ends of the stirring member are respectively connected to the output end of the driver and the center of the top surface of the receiving tray, and the mixing member 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 further includes a first crushing assembly, the first crushing assembly includes an annular baffle, the receiving tray is fixedly arranged at 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.

[0007] In the first technical solution, preferably, it further includes a second crushing assembly, the second crushing assembly includes: a plurality of extrusion blocks, radially fixedly arranged on the top surface of the receiving tray, the bottom of the fertilizer feed hopper is provided with an annular cutting inclined surface, a plurality of uniformly distributed first crushing teeth are arranged in the middle of the annular cutting inclined surface, a crushing groove is arranged on the top surface of the second end of the extrusion block, and a plurality of uniformly distributed second crushing teeth are arranged on the inner bottom surface of the crushing groove; a plurality of sieves, one sieve is arranged between two adjacent extrusion blocks; a plurality of guide blocks, one guide block is arranged below each sieve.

[0008] In the first technical solution, preferably, the sieve is fan-shaped, and the height in the middle is greater than the height at both ends, and the shape of the guide block matches the shape of the sieve.

[0009] In the first technical solution, preferably, it further includes a material distributing assembly, the material distributing assembly includes: a bearing ring, fixedly arranged at the center of the bottom surface of the soil feed box; a first material distributing frame, arranged inside the bearing ring and connected to the inner side wall of the bearing ring; a second material distributing frame, arranged inside the discharge box and connected to the inner side wall of the discharge box.

[0010] In the first technical solution, preferably, the material distributing assembly further includes a bearing frame, which is arranged inside the bearing ring and below the first material distributing frame. The annular baffle is arranged above the bearing ring, and the bottom surface of the annular baffle can slide along the top surface of the bearing ring.

[0011] In the first technical solution, preferably, the first material distributing frame includes a plurality of first material receiving plates distributed radially. A first discharge hole is provided at the center of the first material distributing 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 bearing frame, and a plurality of third discharge holes are also provided on the bearing frame around the second discharge hole; the second material distributing frame includes a plurality of second material receiving plates distributed radially. A fourth discharge hole is provided at the center of the second material distributing frame, 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 member includes a first driving rod, a plurality of first stirring rods and a cover plate. The mixing member includes a second driving rod, a plurality of second stirring rods and a plurality of stirring blades; both ends of the first driving rod are respectively connected to the output end of the motor and the top surface of the material receiving tray. A plurality of 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 material receiving tray. The bottom of the second driving rod sequentially passes through the first discharge hole, the second discharge hole and the fourth discharge hole. A plurality of 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 that of both ends. The stirring blades are arranged on the side wall of the middle part of the second driving rod. The top of the stirring blade is above the second discharge hole, and the bottom of the stirring blade is below the fourth discharge hole.

[0013] In the second technical solution, a coastal saline-alkali land treatment and salt drainage device includes the fertilizer and soil mixing structure as described in the first technical solution, and further includes a frame. The soil feeding box is fixedly arranged 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 conveying part is provided between the front plow and the soil feeding box.

[0014] In the third technical solution, a method for using a desalination device for coastal saline-alkali land treatment, using the desalination device for coastal saline-alkali land treatment as described in the second technical solution, includes: Step 1, install the soil feeding box on the frame so that the soil feeding box, the fertilizer feeding hopper, and the discharging box are all fixedly connected to the frame, and add organic fertilizer to the fertilizer feeding hopper; Step 2, drive the frame to move forward, the front plow turns over the soil, the soil is shoveled up by the conveying part and transported into 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 breaks up the soil so that the soil falls through the first through holes at various positions, and the second crushing assembly breaks up the organic fertilizer so that the organic fertilizer falls through the second through holes at various positions; Step 3, the material distribution assembly concentrates a part of the soil and the organic fertilizer together to the center inside the discharging box, and concentrates another part of the soil and the organic fertilizer together to the edge inside the discharging box; Step 4, the receiving tray drives the mixing member to rotate, the mixing member mixes the soil and the organic fertilizer at the edge inside the discharging box together, and the mixing member simultaneously mixes the soil and the organic fertilizer at the center inside the discharging box together; Step 5, the discharging pipe at the bottom of the discharging box discharges the mixed soil and organic fertilizer to the ground, and the rear plow turns over and mixes the soil and the organic fertilizer in the saline-alkali land.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) When the present invention is in use, the soil can quickly leave the soil feeding box through a number of first through holes, the organic fertilizer can quickly leave the fertilizer feeding hopper through a number of second through holes, and the mixing member can fully contact the soil and the organic fertilizer when rotating, improving the mixing efficiency of the soil and the organic fertilizer.

[0016] (2) The present invention also includes a second crushing assembly. The second crushing assembly includes a number of extrusion blocks. The bottom of the fertilizer feeding hopper is provided with an annular cutting inclined surface. The receiving tray can drive the extrusion blocks to rotate together. The gap between the extrusion blocks and the annular cutting inclined surface first gradually becomes smaller and then gradually becomes larger. During this process, the organic fertilizer on the top of the extrusion blocks is squeezed and broken, and quickly enters the third through hole, and finally enters the second through hole through the third through hole and falls into the discharging box.

[0017] (3) The present invention also includes a material distribution assembly. The material distribution assembly concentrates a part of the soil and the organic fertilizer together to the center inside the discharging box, and concentrates another part of the soil and the organic fertilizer together to the edge inside the discharging box. The mixing member mixes the soil and the organic fertilizer at the edge inside the discharging box together, and the mixing member simultaneously mixes the soil and the organic fertilizer at the center inside the discharging box together. Description of the Drawings

[0018] Figure 1 Is the isometric view of the present invention; Figure 2 Is the front view sectional view of the present invention; Figure 3 Is the isometric sectional view of the soil feeding box in the present invention; Figure 4 Is the isometric sectional view of the material receiving tray in the present invention; Figure 5 Is the isometric sectional view of the fertilizer feeding hopper in the present invention; Figure 6 Is the front view sectional view of the fertilizer feeding hopper in the present invention; Figure 7 Is the isometric sectional view of the discharging box in the present invention; Figure 8 Is the isometric view after the driver and the stirring member are connected to the material receiving tray in the present invention; Figure 9 Is the isometric view after the mixing member is connected to the material receiving tray in the present invention; Figure 10 Is the isometric view after the first crushing component is connected to the material receiving tray in the present invention; Figure 11 Is the isometric view after the second crushing component is connected to the material receiving tray in the present invention; Figure 12 Is the isometric exploded view of the second crushing component in the present invention; Figure 13 Is the isometric view of the extrusion block in the present invention; Figure 14 Is the isometric view of the sieve in the present invention; Figure 15 Is the isometric view after the material distributing component is connected to the discharging box in the present invention; Figure 16 Is the isometric exploded view of the present invention.

[0019] Reference numerals include: 1 - Soil feeding box, 11 - First through hole, 12 - Bump, 2 - Material receiving tray, 21 - Second through hole, 22 - Annular slideway, 3 - Fertilizer feeding hopper, 31 - Annular cutting bevel, 32 - First crushing tooth, 4 - Discharge box, 5 - Stirring assembly, 51 - Driver, 511 - Assembly frame, 512 - Motor, 52 - Stirring member, 521 - First driving rod, 522 - First stirring rod, 523 - Cover plate, 53 - Mixing member, 531 - Second driving rod, 532 - Second stirring rod, 533 - Stirring blade, 6 - First crushing assembly, 61 - Annular baffle, 62 - Pusher plate, 621 - Avoidance groove, 7 - Second crushing assembly, 71 - Extrusion block, 711 - Third through hole, 712 - Crushing groove, 713 - Second crushing tooth, 714 - Feeding groove, 72 - Screen, 73 - Guide block, 731 - Arc surface, 8 - Material distributing assembly, 81 - Bearing ring, 82 - First material distributing frame, 821 - First material receiving plate, 8211 - First material receiving groove, 822 - First discharge hole, 83 - Second material distributing frame, 831 - Second material receiving plate, 8311 - Second material receiving groove, 832 - Fourth discharge hole, 84 - Bearing frame, 841 - Support rod, 842 - Second discharge hole, 843 - Third discharge hole. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0021] Please refer to Figures 1 - 16, the present invention provides a technical solution: a fertilizer-soil mixing structure, including a soil feeding box 1, a receiving tray 2, a fertilizer feeding hopper 3, a discharging box 4, and a stirring assembly 5. The bottom surface of the soil feeding box 1 is provided with a plurality of first through holes 11. Since the soil feeding box 1 is vertically arranged, when the soil of the saline-alkali land enters the soil feeding box 1, it will not all slide to one side. The soil can quickly leave the soil feeding box 1 through the first through holes 11 at various positions and fall into the discharging 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 vertically arranged, when the organic fertilizer in the fertilizer feeding hopper 3 falls onto the top surface of the receiving tray 2, it will not all slide to one side. The organic fertilizer can quickly fall into the discharging box 4 through the second through holes 21 at various positions. The stirring assembly 5 includes a driver 51, a stirring member 52, and a mixing member 53. When the driver 51 works, it can drive the stirring member 52, the receiving tray 2, and the mixing member 53 to rotate together. The stirring member 52 can stir the organic fertilizer in the fertilizer feeding hopper 3 to accelerate the speed of the organic fertilizer falling and leaving the fertilizer feeding hopper 3. Since the discharging box 4 is a hemispherical box body, when the mixing member 53 rotates to stir the soil and the organic fertilizer falling into the discharging box 4, the mixing member 53 can fully contact the soil and the organic fertilizer, so that the soil and the organic fertilizer are quickly mixed together, improving the mixing efficiency of the soil and the organic fertilizer.

[0022] Please refer to Figures 1 - 3 and Figure 10 , the present invention further includes a first crushing assembly 6. The first crushing assembly 6 includes an annular baffle 61 and a push plate 62. The inner bottom surface of the soil feeding box 1 is provided with a plurality of bumps 12. Both ends of the bumps 12 are pointed ends. The bottom of the push plate 62 is provided with a plurality of avoidance grooves 621. When the organic fertilizer in the fertilizer feeding hopper 3 falls onto the top surface of the receiving tray 2, the annular baffle 61 can prevent the organic fertilizer from entering the soil feeding box 1, ensuring that the organic fertilizer can only fall through the second through holes 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 feeding hopper 3. While the push plate 62 makes a circular motion inside the soil feeding box 1, the push plate 62 pushes the soil in the soil feeding box 1 to also make a circular motion. At this time, the bumps 12 pass through the avoidance grooves 621 and crush the soil into small pieces, so that the soil can more quickly fall into the discharging box 4 through the first through holes 11.

[0023] Please refer to Figures 1 - 7 and Figures 10 - 14, the present invention further includes a second crushing assembly 7, and the second crushing assembly 7 includes a plurality of extrusion blocks 71, a plurality of sieve meshes 72 and a plurality of material guiding blocks 73. The height of the first end portion of the extrusion block 71 is greater than that of the second end portion. The second end portion of the extrusion block 71 is located directly below the annular cutting inclined surface 31, and a third through hole 711 is further provided at the second end portion of the extrusion block 71. When the organic fertilizer falls and leaves the fertilizer feed hopper 3, a part of the organic fertilizer will fall onto the extrusion block 71, and another part of the organic fertilizer will fall onto the sieve mesh 72. The bottom of the fertilizer feed hopper 3 is provided with an annular cutting inclined surface 31. The organic fertilizer falling onto the extrusion block 71 will enter the gap between the extrusion block 71 and the annular cutting inclined surface 31 along the top of the extrusion block 71. The receiving tray 2 can drive the extrusion block 71 to rotate together. The gap between the extrusion block 71 and the annular cutting inclined surface 31 first gradually decreases and then gradually increases. During this process, the organic fertilizer on the top of the extrusion block 71 is crushed by extrusion and quickly enters the third through hole 711. Finally, it enters the second through hole 21 through the third through hole 711 and falls into the discharge box 4. In addition, the small pieces of organic fertilizer falling onto the sieve mesh 72 will directly pass through the sieve mesh 72 and fall onto the material guiding block 73. An arc surface 731 is provided at the top of the material guiding block 73. The small pieces of organic fertilizer slide along the arc surface 731 and enter the third through hole 711, then enter the second through hole 21 through the third through hole 711 and fall into the discharge box 4. The large pieces of organic fertilizer falling onto the sieve mesh 72 will slide along the sieve mesh 72 onto the extrusion block 71, and then be crushed through the cooperation of the extrusion block 71 and the annular cutting inclined surface 31.

[0024] Please refer to Figures 1 - 7 and Figures 10 - 14, several first crushing teeth 32 are evenly distributed in the middle of the annular cutting inclined surface 31. A feeding groove 714 is provided on the top surface of the first end of the extrusion block 71, and a crushing groove 712 is provided on the top surface of the second end of the extrusion block 71. The crushing groove 712 is an arc-shaped groove, and both ends penetrate through the side walls on both sides of the extrusion block 71. Several second crushing teeth 713 are evenly distributed on the inner bottom surface of the crushing groove 712, and the positions of the second crushing teeth 713 correspond to those of the first crushing teeth 32. When the organic fertilizer falls onto the extrusion block 71, it will enter the feeding groove 714, and then enter the crushing groove 712 through the feeding groove 714. The width of the first end of the feeding groove 714 is greater than that of the second end, which can play a role in gathering the organic fertilizer. During the rotation of the extrusion block 71 together with the material receiving tray 2, several first crushing teeth 32 continuously enter the crushing groove 712. Several first crushing teeth 32, several second crushing teeth 713 and the annular cutting inclined surface 31 cooperate with each other to complete the crushing operation of the organic fertilizer. There are two third through holes 711 on each extrusion block 71, and the two third through holes 711 are respectively located at both ends of the crushing groove 712. The crushed organic fertilizer on the extrusion block 71 can quickly enter the second through hole 21 through the third through holes 711 on both sides. The sieve mesh 72 is fan-shaped, and the height in the middle is greater than that at both ends. Therefore, the large pieces of organic fertilizer falling on the top surface of the sieve mesh 72 can quickly disperse to both sides and move onto the extrusion blocks 71 on both sides. The shape of the guiding block 73 matches the shape of the sieve mesh 72, ensuring that the small pieces of organic fertilizer passing through the sieve mesh 72 can quickly slide along the arc surface 731 and fall into the third through hole 711.

[0025] Please refer to Figures 1 - 7 and Figures 10 - 16 , the present invention further includes a material distribution assembly 8, and the material distribution assembly 8 includes a bearing ring 81, a first material distribution frame 82 and a second material distribution frame 83. The bearing ring 81 is fixedly arranged at the center of the bottom surface of the soil feeding box 1, and the bearing ring 81 can prevent the organic fertilizer passing through the second through hole 21 from entering the soil feeding box 1. The first material distribution frame 82 is arranged inside the bearing ring 81, and the second material distribution frame 83 is arranged inside the discharge box 4. The first material distribution frame 82 can play a role in dispersing the falling organic fertilizer, so that the organic fertilizer passing through the second through hole 21 is dispersed and moves towards the edge and the center of the discharge box 4 respectively. The second material distribution frame 83 can play a role in dispersing 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 towards the edge and the center of the discharge box 4 respectively. Thus, it is ensured that when the mixing member 53 rotates, the organic fertilizer and soil at various positions in the discharge box 4 are evenly distributed, further improving the mixing efficiency of the soil and the organic fertilizer.

[0026] Please refer to Figures 1 - 7 and Figures 10 - 16, the material distribution component 8 further includes a carrier 84, and the carrier 84 is fixedly connected to the inner side wall of the carrier ring 81. A support rod 841 is fixedly provided on the top surface of the carrier 84. An annular slideway 22 is provided on the bottom surface of the material receiving tray 2, and the top of the support rod 841 extends into the annular slideway 22. An annular baffle 61 is arranged above the carrier ring 81, and the diameter of the carrier ring 81 is the same as that of the annular baffle 61. When the material 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 slideway 22. The carrier ring 81 can support the annular baffle 61, and the support rod 841 can support the material receiving tray 2, thereby reducing the burden on the driver 51 and extending the service life of the driver 51.

[0027] Please refer to Figures 1 - 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 that of the second end, and it is fixedly connected to the inner side wall of the carrier ring 81. A first discharge hole 822 is provided at the center of the first material distribution rack 82. A first material receiving groove 8211 is provided on the top surface of the first material receiving plate 821, and the first material receiving groove 8211 communicates with the first discharge hole 822. A second discharge hole 842 is provided at the center of the carrier 84. The second discharge hole 842 corresponds to the position of the first discharge hole 822, and a plurality of third discharge holes 843 are also provided on the carrier 84 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 that of the second end, and it is fixedly connected to the inner side wall of the discharge box 4. A fourth discharge hole 832 is provided at the center of the second material distribution rack 83. A second material receiving groove 8311 is provided on the top surface of the second material receiving plate 831, and the second material receiving groove 8311 communicates with the fourth discharge hole 832.

[0028] Therefore, part of the organic fertilizer falling through the second through hole 21 will fall into the first material receiving groove 8211, slide along the first material receiving groove 8211 to the first discharge hole 822, then sequentially pass through the second discharge hole 842 and the fourth discharge hole 832, and finally fall to the central position in the discharge box 4. Another part will first pass through the gap between two adjacent first material receiving plates 821, then pass through the third discharge hole 843, then first pass through the gap between two adjacent second material receiving plates 831, and finally fall to the edge position in the discharge box 4. And part of the soil falling through the first through hole 11 will fall into the second material receiving groove 8311, slide along the second material receiving groove 8311 to the fourth discharge hole 832, and finally fall to the central position in the discharge box 4. Another part will first pass through the gap between two adjacent second material receiving plates 831 and directly fall to the edge position in the discharge box 4.

[0029] Please refer toFigures 1 - 16 , the driver 51 includes a mounting 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 operates, 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 material receiving tray 2 to rotate together. The first stirring rods 522 stir the organic fertilizer in the fertilizer feeding hopper 3. One end of each of the plurality of pressing blocks 71 and the plurality of screening meshes 72 away from the annular baffle 61 abuts 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 pressing blocks 71 at the center position of the material receiving tray 2, ensuring that the organic fertilizer can surely move onto the pressing blocks 71 or the screening meshes 72.

[0030] Please refer to Figures 1 - 16 , the mixing member 53 includes a second driving rod 531, a plurality of second stirring rods 532, and a plurality of stirring blades 533. When the material receiving tray 2 rotates, it can drive the second driving 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 driving rod 531, and the diameter of the middle part of the second driving rod 531 is smaller than the diameters of both ends. Therefore, the organic fertilizer can quickly pass through the first discharge hole 822, the second discharge hole 842, and the fourth discharge hole 832, and the 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. During the process that the organic fertilizer and the soil pass through the material distributing assembly 8, the stirring blades 533 can realize the pre-mixing of the organic fertilizer and the soil. Therefore, in the present invention, through the rotation of the plurality of second stirring rods 532, the soil and the organic fertilizer at the edge position inside the discharge box 4 can be quickly and fully mixed evenly, and through the rotation of the plurality of stirring blades 533, the soil and the organic fertilizer at the center position inside the discharge box 4 can be quickly and fully mixed evenly. Embodiment Two

[0031] Please refer to Figures 1 - 16 , a coastal saline-alkali land treatment and desalination device includes a fertilizer and soil mixing structure as in Embodiment One, and further includes a frame. The soil feeding box 1 is fixedly arranged 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 conveying part (the frame, the front plow, the rear plow, and the conveying part are not shown in the figure) is provided between the front plow and the soil feeding box. In this embodiment, a soil inlet pipe is provided at the top of the soil feeding box 1, and the conveying part can convey the shoveled soil into the soil feeding box 1 through the soil inlet pipe. A discharge pipe is provided at the bottom of the discharge box 4, and can discharge the mixed soil and organic fertilizer out of the discharge box 4.

[0032] The frame, the front plow, the rear plow, and the conveying part all belong to the prior art. The using method of the coastal saline-alkali land treatment and desalination device includes: Step 1: Install the soil feeding box 1 onto the frame such that the soil feeding box 1, the fertilizer feeding hopper 3, and the discharging box 4 are all fixedly connected to the frame, and add organic fertilizer into the fertilizer feeding hopper 3.

[0033] Step 2: Drive the frame to move forward. The front plow turns over the soil, and the soil is shoveled up by the conveying part and transported into the soil feeding 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 crushes the soil so that the soil falls through the first through holes 11 at various positions. The second crushing assembly 7 crushes the organic fertilizer so that the organic fertilizer falls through the second through holes 21 at various positions.

[0034] Step 3: The material distribution assembly 8 concentrates a part of the soil and the organic fertilizer together to the center inside the discharging box 4, and concentrates another part of the soil and the organic fertilizer together to the edge inside the discharging box 4.

[0035] Step 4: The receiving tray 2 drives the mixing part 53 to rotate. The mixing part 53 mixes the soil and the organic fertilizer at the edge inside the discharging box 4 together, and at the same time, the mixing part 53 mixes the soil and the organic fertilizer at the center inside the discharging box 4 together.

[0036] Step 5: The discharging pipe at the bottom of the discharging box 4 discharges the mixed soil and organic fertilizer onto the ground, and the rear plow turns over and mixes the soil and the organic fertilizer in the saline-alkali land.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0038] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fertilizer-soil mixing structure, characterized in that, Comprising: A soil feeding box, which is an annular box body, the central axis of the soil feeding box is vertically arranged, and a plurality of first through holes distributed in a ring shape are provided on the bottom surface of the soil feeding box; A material receiving tray, which is arranged inside the soil feeding box, the central axis of the material receiving tray is collinear with the central axis of the soil feeding box, and a plurality of second through holes distributed in a ring shape are provided at the edge of the material receiving tray; A fertilizer feeding hopper, which is fixedly arranged on the top of the soil feeding box and is located directly above the material receiving tray; A discharging box, which is fixedly arranged at the bottom of the soil feeding box, and the discharging box is a hemispherical box body; A stirring assembly, which is arranged above the material receiving tray; A first crushing assembly, which is arranged at the edge of the material receiving tray; A second crushing assembly, which is arranged between the material receiving tray and the fertilizer feeding hopper. The second crushing assembly includes a plurality of extrusion blocks, and the plurality of extrusion blocks are fixedly arranged on the top surface of the material receiving tray in a radial shape. An annular cutting inclined surface is provided at the bottom of the fertilizer feeding hopper; A material distributing assembly, which is arranged below the material receiving tray. The material distributing assembly includes a bearing ring, a first material distributing frame and a second material distributing frame. The first material distributing frame is arranged inside the bearing ring, and the second material distributing frame is arranged inside the discharging box.

2. The fertilizer-soil mixing structure according to claim 1, wherein The stirring assembly includes a driver, a stirring member and a mixing member. The driver and the stirring member are both arranged inside the fertilizer feeding hopper. Two ends of the stirring member are respectively connected to the output end of the driver and the center of the top surface of the material receiving tray. The mixing member is arranged inside the discharging box and is fixedly arranged at the center of the bottom surface of the material receiving tray; The first crushing assembly includes an annular baffle. The material receiving tray is fixedly arranged at 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 feeding hopper and can slide along the outer side wall of the fertilizer feeding hopper. A push plate is fixedly arranged on the outer side wall of the annular baffle; A plurality of first crushing teeth are evenly distributed in the middle of the annular cutting inclined surface. A crushing groove is provided on the top surface of the second end of the extrusion block, and a plurality of second crushing teeth are evenly distributed on the inner bottom surface of the crushing groove. The second crushing assembly further includes a plurality of sieves and a plurality of guiding blocks. One sieve is arranged between two adjacent extrusion blocks, and one guiding block is arranged below each sieve; The bearing ring is fixedly arranged at the center of the bottom surface of the soil feeding box. The first material distributing frame is connected to the inner side wall of the bearing ring, and the second material distributing frame is connected to the inner side wall of the discharging box.

3. The fertilizer-soil mixing structure according to claim 2, wherein, The sieve is fan-shaped, and the height in the middle is greater than the heights at both ends. The shape of the guiding block matches the shape of the sieve.

4. The fertilizer-soil mixing structure according to claim 2, characterized in that, The material distributing assembly further includes a bearing frame, which is arranged inside the bearing ring and is located below the first material distributing frame. The annular baffle is arranged above the bearing ring, and the bottom surface of the annular baffle can slide along the top surface of the bearing ring.

5. The fertilizer-soil mixing structure according to claim 4, characterized in that The first material distributing frame includes a plurality of first material receiving plates distributed in a radial shape. A first discharging hole is provided at the center of the first material distributing 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 also provided on the carrier frame around the second discharge hole; The second material distributing frame includes a plurality of second receiving plates distributed radially, a fourth discharge hole is provided at the center of the second material distributing frame, and a second receiving groove is provided on the top surface of the second 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 member includes a first driving rod, a plurality of first stirring rods and a cover plate. The mixing member includes a second driving rod, a plurality of second stirring rods and a plurality of stirring blades; Both ends of the first driving rod are respectively connected to the output end of the motor and the top surface of the receiving tray. A plurality of 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. The bottom of the second driving rod sequentially passes through the first discharge hole, the second discharge hole and the fourth discharge hole. A plurality of 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 that of both ends. The stirring blades are 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 coastal saline-alkali land treatment and salt drainage device, comprising the fertilizer and soil mixing structure as described in claim 3, characterized in that, It further includes a frame. The soil feeding 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 part is provided between the front plow and the soil feeding box.

8. A method for using a desalination device for coastal saline-alkali land treatment, which uses the desalination device for coastal saline-alkali land treatment as described in claim 7, characterized in that, Including: Step 1: Install the soil feeding box on the frame so that the soil feeding box, the fertilizer feeding hopper and the discharge box are all fixedly connected to the frame, and add organic fertilizer to the fertilizer feeding hopper; Step 2: Drive the frame to move forward. The front plow turns up the soil. The soil is shoveled 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. 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 distributing assembly concentrates a part of the soil and the organic fertilizer together at the center inside the discharge box, and concentrates another part of the soil and the organic fertilizer together at the edge inside the discharge box; Step 4: The receiving tray drives the mixing member to rotate. The mixing member mixes the soil and the organic fertilizer at the edge inside the discharge box together, and at the same time mixes the soil and the organic fertilizer at the center inside the discharge box together; 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 plow turns over and mixes the soil and organic fertilizer in the saline-alkali land.

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