Device and method for preparing shell powder soil conditioner

Abstract

The invention provides a shell powder soil conditioner preparation device and method, the shell powder soil conditioner preparation device comprises a fixed box, the top end of the fixed box is provided with a crushing mechanism used for crushing shells, and the fixed box is internally provided with a compression mechanism used for crushing the crushed shells; crushing mechanisms for crushing shells are symmetrically mounted at the two ends of the fixed box; a driving mechanism for driving the crushing mechanism, the compressing mechanism and the crushing mechanism to operate is mounted on the side wall of the fixed box, and an air injection mechanism for pushing shell powder to move and screen in the crushing mechanism is mounted in the fixed box. The shell powder soil conditioner preparation device and method have the advantages that the shell powder production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of soil conditioner preparation, and in particular to a shell powder soil conditioner preparation device and method. Background Art

[0002] Shell powder is rich in calcium, magnesium and other elements, which can improve soil acidity, increase soil pH, increase soil water holding capacity, reduce water evaporation and loss, and improve drought resistance. Shell powder is also beneficial to improve soil aeration and water permeability, promote root development, and improve crop water absorption capacity. At the same time, shell powder is rich in organic matter and can increase soil fertility. In addition, the porous structure of shell powder provides conditions for the adsorption and accommodation of heavy metals. The pH of shell material is alkaline, which can promote the precipitation of heavy metal ions.

[0003] The particle size and specific surface area of ​​shell powder are the key factors that determine its ability to adsorb heavy metals. The smaller the particle size of shell powder, the larger its variable area and the stronger its adsorption capacity. However, the surface of the shell is hard and its shape is irregular. Using a grinder to crush the shells is ineffective, and the particle size of the shells after crushing is usually around 30 mesh. The particle size of shell powder is too large and its ability to adsorb heavy metals is weak. Although using a ball mill to crush shells can obtain shell powder of suitable particle size, the production efficiency is low and the production cost is too high.

[0004] Therefore, it is necessary to provide a new shell powder soil conditioner preparation device and method to solve the above-mentioned technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a shell powder soil conditioner preparation device and method which can accelerate the production efficiency of shell powder and reduce the production cost.

[0006] In order to solve the above technical problems, the shell powder soil conditioner preparation device provided by the present invention includes: a fixed box, a crushing mechanism for crushing shells is installed on the top of the fixed box, and a compression mechanism for crushing the broken shells is installed inside the fixed box; the compression mechanism includes a blanking plate, and the blanking plate with a funnel-shaped interior is installed in the center of the interior of the fixed box, and two rollers are rotatably connected below the blanking plate, and triangular protrusions are evenly distributed on the side walls of the rollers; a partition is installed inside the fixed box, and the side walls of the partition are arc-shaped; a crushing mechanism for crushing shells is symmetrically installed at both ends of the fixed box, and the crushing mechanism includes a grinding plate, and the two ends of the fixed box are symmetrically installed with the grinding plate. The grinding plate has a plurality of crushing chambers with arc-shaped side walls arranged inside the grinding plate, a feed trough is arranged at the bottom end of the grinding plate, and the feed trough is used to connect the crushing chamber with the partition plate; a connecting groove is arranged at the top end of the grinding plate, and a discharge trough is arranged at one end of the grinding plate, and a filter with arc-shaped side walls is installed inside the discharge trough; the grinding plate is rotatably connected to a rotating shaft inside, and a plurality of sets of blades are installed on the side wall of the rotating shaft, and the blades are rotatably connected to the inside of the crushing chamber; a driving mechanism for driving the crushing mechanism, the compression mechanism and the crushing mechanism is installed on the side wall of the fixed box, and a jet mechanism for driving the shell powder to move and screen inside the crushing mechanism is installed inside the fixed box.

[0007] Preferably, the crushing mechanism includes a crushing box, the surface of the fixed box is fixedly connected to the hollow cylindrical crushing box at the center, a plurality of reinforcement plates are installed at the connection between the crushing box and the fixed box, and a feeding funnel is installed on the surface of the crushing box; the interior of the crushing box is rotatably connected to a fixed shaft, and the side wall of the fixed shaft is fixedly connected to a plurality of crushing hammers; the bottom end of the crushing box is slidably connected to a screen with an arc-shaped side wall, and the screen is fixed to the inside of the crushing box by bolts, and the width of the crushing box is smaller than the length of the drum.

[0008] Preferably, a plurality of pressure plates with arc-shaped side walls are installed inside one side of the crushing box, the crushing hammer is slidably connected between two of the pressure plates, and the width of one end of the crushing hammer gradually increases; the length and thickness of the pressure plates gradually increase from bottom to top, and the spacing between adjacent pressure plates gradually increases from top to bottom.

[0009] Preferably, the driving mechanism includes a motor, the motor is mounted on the surface of the fixed box, the side wall of the fixed box is fixedly connected to a mounting plate, the interior of the mounting plate is rotatably connected to two main gears and four sub-gears; the motor, the main gears, the two sub-gears, the rotating shaft and one side of the fixed shaft are all fixedly connected to a belt shaft, the belt shafts are connected by a belt, and the other two sub-gears mesh with the main gear; a bearing seat is mounted on the side wall of the fixed box, the interior of the bearing seat is rotatably connected to the fixed shaft.

[0010] Preferably, the side wall of the drum is fixedly connected to the main gear, the two main gears are meshed with each other, the two main gears rotate in opposite directions, and the diameter of the main gear is larger than the diameter of the sub-gear; on the left side of the fixed box, the drum and the rotating shaft rotate clockwise, and on the right side of the fixed box, the drum and the rotating shaft rotate counterclockwise.

[0011] Preferably, the jet mechanism includes an air inlet pipe, which is fixed to the side wall of the fixed box, and a plurality of connecting pipes are installed on the side wall of the fixed box; a plurality of first nozzles and second nozzles with arc-shaped side walls are installed inside the grinding plate, the first nozzle is aligned with the feed trough, and the second nozzle is aligned with the filter.

[0012] Preferably, the bottom end of the feed chute is inclined, and a discharge funnel is installed at one end of the feed chute; connecting plates are installed at both ends of the filter screen, the connecting plates are engaged with the inside of the grinding plate, and the width of the filter screen is greater than the width of the feed chute.

[0013] Preferably, the surface of the partition is arranged to be inclined, and the distance between the partition and the drum gradually increases from top to bottom.

[0014] Preferably, the width of the crushing chamber gradually decreases from top to bottom, and the vertical distance between the rotating shaft and the bottom surface of the crushing chamber is smaller than the vertical distance between the rotating shaft and the top surface of the crushing chamber; the topmost end of the crushing chamber is inclined to connect to the connecting groove, and the bottom end of the funnel-shaped connecting groove is located above the unloading plate.

[0015] A method for preparing a shell powder soil conditioner comprises the following steps: Step 1: connect the device to an external power source, connect the jet mechanism to an external high-pressure blower, turn on the drive mechanism, and operate the crushing mechanism, the compression mechanism, and the pulverizing mechanism; Step 2: The shells are continuously beaten and crushed inside the crushing mechanism until the shell particle size is less than 0.5 cm, and then they are crushed again inside the compression mechanism, and the crushed shells undergo a first diversion inside the compression mechanism; Step 3: The shell powder after diversion is blown into the interior of the plurality of crushing mechanisms after diversion again by the jet mechanism, and the shell powder is processed and crushed inside the crushing mechanism in a single small space, and the shell powder with a particle size less than 80 mesh is discharged from the discharging funnel after screening, and the unqualified shell powder is separated inside the crushing mechanism, and the shell powder with a large particle size enters the compression mechanism again for crushing, and the shell powder with a small particle size is continuously rotated and crushed inside the compression mechanism, thereby accelerating the crushing efficiency; Step 4: Collect the shell powder with a particle size less than 80 mesh discharged from the discharge funnel, and mix various raw materials to make a shell powder soil conditioner; the various raw materials of the soil conditioner are matched in the following proportions by mass percentage: 40-60% of shell powder with a particle size less than 80 mesh, 25-35% of biochar, 20-30% of organic fertilizer, and 0.3-0.7% of microbial agent.

[0016] Compared with the related art, the shell powder soil conditioner preparation device and method provided by the present invention have the following beneficial effects: The present invention provides a shell powder soil conditioner preparation device and method thereof. In the process of preparing shell powder, the crushing mechanism, the compression mechanism and the pulverizing mechanism successively beat and crush the shells, extrude to reduce the volume and crush them with blades, so that the volume of the shells is continuously reduced, which is convenient for preparing shell powder. When the shells broken into small pieces come into contact with the rotating rollers, the shell powder enters between the two rollers, and the convex blocks on the surfaces of the rollers continuously squeeze the shells to crush them again. The crushed shells move in two directions along the arc-shaped partitions of the side plates, and the compressed shells are diverted to avoid the accumulation of shell powder in one place, thereby accelerating the treatment of the shell powder. The processing efficiency is improved; a plurality of crushing chambers are provided on one side of the partition, and the shell powder on the surface of the partition is diverted again by the jet mechanism, so that the shell powder is crushed inside the plurality of crushing chambers, thereby accelerating the crushing efficiency and making the volume of the crushing chamber small, so that the shell powder is crushed inside a small space, thereby increasing the contact probability between the blade and the shell powder, thereby further accelerating the crushing efficiency of the shell powder; during the process of the blade rotating to crush the shell powder, the shell powder with qualified particle size passes through the filter screen and enters the interior of the feed chute, and the shell powder with unqualified particle size is blocked by the filter screen, and the jet mechanism quickly sprays gas upwards, driving the shell powder to move on the surface of the filter screen The pulverizing chamber is provided with a plurality of pulverizing chambers, and the ... Arc-shaped movement, the top space of the crushing chamber is large, and the shell powder is separated at the top of the crushing chamber under the action of centrifugal force. The shell powder with large particle size and heavy weight is subjected to large centrifugal force, so that the shell powder with large particle size slides along the side wall of the crushing chamber and enters the surface of the discharge plate through the connecting groove, and part of the gas is blown to the surface of the discharge plate through the connecting groove, pushing the shell powder on the surface of the discharge plate into between the two rollers for crushing; and the shell powder with smaller particle size is closer to the rotating blade due to the smaller centrifugal force, so that the blade drives this part of the shell powder to rotate again inside the crushing chamber for crushing, which is convenient for quickly crushing the shell powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a shell powder soil conditioner preparation device and method provided by the present invention; Figure 2 for Figure 1 The internal structure diagram of the fixed box shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at A shown; Figure 4 for Figure 2 An enlarged schematic diagram of the structure at B shown; Figure 5 for Figure 1 The top view of the internal structure of the crushing box is shown; Figure 6 for Figure 1 A side view of the internal structure of the crushing box is shown; Figure 7 for Figure 1 A top view of the internal structure of the fixed box shown; Figure 8 for Figure 2 A side view of the internal structure of the crushing chamber is shown; Fig. 9 for Figure 1 Schematic diagram of the internal structure of the mounting plate shown.

[0018] Numbers in the figure: 1. fixed box, 11. discharge funnel, 2. driving mechanism, 21. motor, 22. belt, 23. belt shaft, 24. mounting plate, 25. bearing seat, 26. main gear, 27. sub-gear, 3. jet mechanism, 31. air intake pipe, 32. connecting pipe, 33. first nozzle, 34. second nozzle, 4. crushing mechanism, 41. crushing box, 42. feed funnel, 43. fixed shaft, 44. reinforcement plate, 45. breaker, 46. screen, 47. pressure plate, 48. bolt, 5. compression mechanism, 51. discharge plate, 52. drum, 53. partition, 54. bump, 6. crushing mechanism, 61. grinding plate, 62. crushing chamber, 63. connecting groove, 64. feed trough, 65. rotating shaft, 66. blade, 67. discharge trough, 68. filter, 69. connecting plate. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0020] See also Figures 1 to 9 , Figure 1 A schematic structural diagram of a preferred embodiment of a shell powder soil conditioner preparation device and method provided by the present invention; Figure 2 for Figure 1 The internal structure diagram of the fixed box shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at A shown; Figure 4 for Figure 2 An enlarged schematic diagram of the structure at B shown; Figure 5 for Figure 1 The top view of the internal structure of the crushing box is shown; Figure 6 for Figure 1 A side view of the internal structure of the crushing box is shown; Figure 7 for Figure 1 A top view of the internal structure of the fixed box shown; Figure 8 for Figure 2 A side view of the internal structure of the crushing chamber is shown; Fig. 9 for Figure 1 The schematic diagram of the internal structure of the mounting plate shown. The shell powder soil conditioner preparation device includes: a fixed box 1, a crushing mechanism 4 for crushing shells is installed on the top of the fixed box 1, and the shell powder soil conditioner preparation device according to claim 1 is characterized in that the crushing mechanism 4 includes a crushing box 41, the surface of the fixed box 1 is fixedly connected to the hollow cylindrical crushing box 41 at the center, a plurality of reinforcing plates 44 are installed at the connection between the crushing box 41 and the fixed box 1, and a feeding funnel 42 is installed on the surface of the crushing box 41; the crushing box 41 is internally rotatably connected to a fixed shaft 43, The side wall of the fixed shaft 43 is fixedly connected to multiple breakers 45; the bottom end of the crushing box 41 is slidably connected to the arc-shaped screen 46 on the side wall, and the screen 46 is fixed to the inside of the crushing box 41 by bolts 48. When the shells enter the inside of the crushing box 41 through the feeding funnel 42, the fixed shaft 43 drives the breakers 45 to rotate clockwise continuously and contact the shells. The heavy breakers 45 rotate quickly to break the shells quickly, reducing the volume of the shells. Shells with a particle size less than 0.5 cm pass through the screen 46 and enter the inside of the fixed box 1.

[0021] A plurality of pressure plates 47 with arc-shaped side walls are installed inside one side of the crushing box 41, and the crushing hammer 45 is slidably connected between two of the pressure plates 47; as the crushing hammer 45 rotates clockwise, the crushing hammer 45 brings the shells between the two pressure plates 47, and the spacing between adjacent pressure plates 47 gradually increases from top to bottom, so that the spacing below the two pressure plates 47 is large, which is convenient for the crushing hammer 45 to push the shells on the surface of the screen 46 upward into between the two pressure plates 47; as the crushing hammer 45 carries the shells and moves upward between the pressure plates 47, the length and thickness of the pressure plates 47 are increased from It gradually increases from bottom to top, and the width of one end of the breaker hammer 45 gradually increases, so that the distance between the breaker hammer 45 and the pressure plate 47 becomes smaller and smaller, so that the breaker hammer 45 rotates, squeezes and grinds the shells between the pressure plate 47 and the breaker hammer 45, and the pressure plates 47 gradually approach toward the direction of the fixed axis 43, so that the shells are left between the breaker hammer 45 and the pressure plate 47, which is convenient for the breaker hammer 45 to crush the shell powder quickly, and the overlapping part of the breaker hammer 45 and the pressure plate 47 is getting larger and larger, thereby increasing the area of ​​the shell powder being crushed, and further accelerating the crushing efficiency of the shell powder.

[0022] A compression mechanism 5 for crushing broken shells is installed inside the fixed box 1; the compression mechanism 5 includes a blanking plate 51, and the blanking plate 51 with a funnel-shaped interior is installed in the center of the fixed box 1, and two rollers 52 are rotatably connected below the blanking plate 51, and triangular protrusions 54 are evenly distributed on the side walls of the rollers 52; a partition 53 is installed inside the fixed box 1, and the side walls of the partition 53 are arc-shaped; the width of the crushing box 41 is smaller than the length of the roller 52, in order to facilitate the roller 52 to quickly squeeze the shells and speed up the crushing efficiency of the shells; the surface of the partition 53 is inclined, and the distance between the partition 53 and the roller 52 gradually increases from top to bottom. When the shells broken into small pieces move downward and fall onto the surface of the discharge plate 51, the shell powder moving downward along the discharge plate 51 contacts the rotating roller 52, and the shell powder enters between the two rollers 52. The protrusions 54 on the surface of the roller 52 continuously squeeze the shells and crush them again. The crushed shells move in two directions along the arc-shaped partition 53 of the side plate to divert the compressed shells. The shells moving downward on the surface of the partition 53 are squeezed and crushed by the protrusions 54 again, further reducing the volume of the shells.

[0023] A crushing mechanism 6 for crushing shells is symmetrically installed at both ends of the fixed box 1, and the crushing mechanism 6 includes a grinding plate 61. The grinding plates 61 are symmetrically installed at both ends of the fixed box 1. The interior of the grinding plate 61 is provided with a plurality of crushing chambers 62 with arc-shaped side walls, and the bottom end of the grinding plate 61 is provided with a feed trough 64, and the feed trough 64 is used to connect the crushing chamber 62 with the partition 53; a connecting groove 63 is provided at the top of the grinding plate 61, and a discharge trough 67 is provided at one end of the grinding plate 61, and a filter screen 68 with arc-shaped side walls is installed inside the discharge trough 67; the interior of the grinding plate 61 is rotatably connected to a rotating shaft 65, and a plurality of sets of blades 66 are installed on the side walls of the rotating shaft 65, and the blades 66 are rotatably connected to the interior of the crushing chamber 62; the interior of the fixed box 1 is installed with a jet mechanism 3 for pushing the shell powder to move and screen inside the crushing mechanism 6. The jet mechanism 3 includes an air inlet pipe 31, which is fixed to the side wall of the fixed box 1, and a plurality of connecting pipes 32 are installed on the side wall of the fixed box 1; a plurality of first nozzles 33 and second nozzles 34 with arc-shaped side walls are installed inside the grinding plate 61, the first nozzle 33 is aligned with the feed trough 64, and the second nozzle 34 is aligned with the filter screen 68; the shell powder on the surface of the partition 53 moves downward, and the wind is sprayed downward through the first nozzle 33, pushing the shell powder on the surface of the partition 53 into the inside of the discharge trough 64, and the shell powder passes through the discharge trough 6 4 enters the bottom end of the crushing chamber 62, and the rotating shaft 65 drives the blade 66 to rotate rapidly inside the crushing chamber 62, thereby quickly crushing the shell powder; a plurality of the crushing chambers 62 are provided on one side of the partition 53, and the shell powder on the surface of the partition 53 is diverted again through the first nozzle 33, so that the shell powder is crushed inside the plurality of the crushing chambers 62, thereby accelerating the crushing efficiency, and at the same time making the volume of the crushing chamber 62 small, so that the shell powder is crushed inside a small space, thereby increasing the contact probability between the blade 66 and the shell powder, thereby further accelerating the crushing efficiency of the shell powder; The rotation of the blade 66 pushes the shell powder to rotate inside the crushing chamber 62. Part of the shell powder contacts the filter screen 68 under the action of centrifugal force. Shell powder with a particle size less than 80 meshes passes through the filter screen 68 and enters the interior of the discharge chute 64. Shell powder with a particle size greater than 80 meshes is blocked by the filter screen 68. At this time, wind is ejected upward in an arc shape through the second nozzle 34, driving the shell powder to move on the surface of the filter screen 68, so that qualified shell powder passes through the filter screen 68, and pushes unqualified shell powder to move upward along the filter screen 68 into the interior of the crushing chamber 62, avoiding clogging of the filter screen 68. The width of the crushing chamber 62 gradually decreases from top to bottom, and the vertical distance between the rotating shaft 65 and the bottom surface of the crushing chamber 62 is smaller than the vertical distance between the rotating shaft 65 and the top surface of the crushing chamber 62, so that the space at the bottom end of the crushing chamber 62 is small, which is convenient for the blade 66 to crush the shell powder at the bottom end of the crushing chamber 62 and then separate it. The top of the crushing chamber 62 is connected to the connecting groove 63 at an angle, and the bottom of the funnel-shaped connecting groove 63 is located above the discharge plate 51; the unqualified shell powder is blown into the top of the crushing chamber 62 by the wind to make an arc motion. The top space of the crushing chamber 62 is large, and the shell powder is separated at the top of the crushing chamber 62 under the action of centrifugal force. The shell powder with large particle size and heavy weight is subjected to large centrifugal force, so that the shell powder with large particle size slides along the side wall of the crushing chamber 62 and enters the surface of the discharge plate 51 through the connecting groove 63, and part of the gas is blown to the surface of the discharge plate 51 through the connecting groove 63, pushing the shell powder on the surface of the discharge plate 51 into between the two rollers 52 for crushing; and the shell powder with smaller particle size is closer to the rotating blade 66 due to the smaller centrifugal force, so that the blade 66 drives this part of the shell powder to rotate again inside the crushing chamber 62 for crushing, which is convenient for crushing the shell powder.

[0024] The bottom end of the feed chute 64 is tilted, and a discharge funnel 11 is installed at one end of the feed chute 64 to discharge qualified shell powder through the discharge funnel 11; connecting plates 68 are installed at both ends of the filter screen 68, and the connecting plates 68 are engaged with the inside of the grinding plate 61, and the width of the filter screen 68 is greater than the width of the feed chute 64.

[0025] The side wall of the fixed box 1 is installed with a driving mechanism 2 for driving the crushing mechanism 4, the compression mechanism 5 and the pulverizing mechanism 6 to operate, and the driving mechanism 2 includes a motor 21. The motor 21 is installed on the surface of the fixed box 1, and the side wall of the fixed box 1 is fixedly connected to a mounting plate 24, and the internal rotation of the mounting plate 24 is connected to two main gears 26 and four sub-gears 27; the motor 21, the main gear 26, the two sub-gears 27, the rotating shaft 65 and one side of the fixed shaft 43 are fixedly connected to a belt shaft 23, and the belt shafts 23 are connected by a belt 22, and the other two sub-gears 27 are meshed with the main gear 26; the side wall of the fixed box 1 is installed with a bearing seat 25, and the internal rotation of the bearing seat 25 is connected to the fixed shaft 43; the side wall of the drum 52 is fixedly connected to the main gear 26, and the two main gears 26 are meshed with each other. 26 turns in the opposite direction; on the left side of the fixed box 1, the roller 52 and the rotating shaft 65 rotate clockwise, and on the right side of the fixed box 1, the roller 52 and the rotating shaft 65 rotate counterclockwise; in order to facilitate the motor 21 to drive the main gear 26 to rotate through the belt shaft 23 and the belt 22, the main gear 26 drives the roller 52 to rotate, and the main gear 26 drives the fixed shaft 43 to rotate through the belt shaft 23 and the belt 22, and the main gear 26, the roller 52 and the fixed shaft 43 have the same rotation speed; the diameter of the main gear 26 is greater than the diameter of the sub-gear 27, and the main gear 26 drives the sub-gear 27 to rotate when the sub-gear 27 is rotated to increase the rotation speed of the sub-gear 27, and the sub-gear 27 drives the rotating shaft 65 to rotate through the belt shaft 23 and the belt 22, so that the rotating shaft 65 drives the blade 66 to rotate rapidly inside the crushing chamber 62.

[0026] A method for preparing a shell powder soil conditioner specifically comprises the following steps.

[0027] Step 1: connect the device to an external power source, connect the air intake pipe 31 to an external high-pressure blower, so that wind can continuously and quickly enter the interior of the air intake pipe 31, turn on the motor 21, and the motor 21 drives the main gear 26 to rotate through the belt shaft 23 and the belt 22, and the main gear 26 drives the roller 52 to rotate, and the main gear 26 drives the fixed shaft 43 to rotate through the belt shaft 23 and the belt 22; the diameter of the main gear 26 is greater than the diameter of the sub-gear 27, and the main gear 26 drives the sub-gear 27 to rotate when the sub-gear 27 is rotated, and the sub-gear 27 drives the rotating shaft 65 to rotate through the belt shaft 23 and the belt 22, so that the rotating shaft 65 drives the blade 66 to rotate quickly inside the crushing chamber 62, so that the crushing mechanism 4, the compression mechanism 5 and the crushing mechanism 6 operate; Step 2: The shells are passed through the feed hopper 42 into the crushing box 41, and the fixed shaft 43 drives the crushing hammer 45 to rotate continuously clockwise to contact the shells. The heavy crushing hammer 45 rotates quickly to break the shells quickly and reduce the volume of the shells. Shells with a particle size of less than 0.5 cm pass through the screen 46 and enter the interior of the fixed box 1; as the crushing hammer 45 rotates clockwise, the crushing hammer 45 pushes the shells on the surface of the screen 46 upward into between the two pressing plates 47; as the crushing hammer 45 carries the shells and moves upward between the pressing plates 47, the crushing hammer 45 rotates, squeezes and grinds the The shells between the pressing plate 47 and the crushing hammer 45 accelerate the crushing efficiency of the shell powder; the shells broken into small pieces move downward and fall onto the surface of the unloading plate 51, and the shell powder moving downward along the unloading plate 51 contacts the rotating roller 52, and the shell powder enters between the two rollers 52, and the protrusions 54 on the surface of the roller 52 continuously squeeze the shells, crushing the shells again, and the crushed shells move in two directions along the arc-shaped partition 53 of the side plate, diverting the compressed shells, and the shells moving downward on the surface of the partition 53 are squeezed and crushed by the protrusions 54 again, further reducing the volume of the shells; Step 3: The shell powder on the surface of the partition 53 moves downward, and the wind ejected from the first nozzle 33 pushes the shell powder on the surface of the partition 53 into the inside of the discharge chute 64. The shell powder enters the bottom end of the crushing chamber 62 through the discharge chute 64, and the rotating shaft 65 drives the blade 66 to rotate rapidly inside the crushing chamber 62, thereby quickly crushing the shell powder; a plurality of crushing chambers 62 are provided on one side of the partition 53, and the shell powder on the surface of the partition 53 is diverted again through the first nozzle 33, so that the shell powder is crushed in the plurality of crushing chambers 62, thereby accelerating the crushing efficiency and making the volume of the crushing chamber 62 small, so that the shell powder can be crushed in a small space. The shell powder is crushed inside the chamber 62 to increase the contact probability between the blade 66 and the shell powder, thereby further accelerating the crushing efficiency of the shell powder; when the blade 66 rotates to drive the shell powder to rotate inside the crushing chamber 62, part of the shell powder contacts the filter screen 68 under the action of centrifugal force, and the shell powder with a particle size less than 80 mesh passes through the filter screen 68 and enters the interior of the feed chute 64, and the shell powder with a particle size greater than 80 mesh is blocked by the filter screen 68. At this time, the wind is ejected upward in an arc shape through the second nozzle 34, driving the shell powder to move on the surface of the filter screen 68, so that the qualified shell powder passes through the filter screen 68, and pushes the unqualified shell powder to move upward along the filter screen 68 and enter the crushing chamber 62. , to avoid clogging of the filter screen 68; the width of the crushing chamber 62 gradually decreases from top to bottom, and the vertical distance between the rotating shaft 65 and the bottom surface of the crushing chamber 62 is smaller than the vertical distance between the rotating shaft 65 and the top surface of the crushing chamber 62, so that the space at the bottom end of the crushing chamber 62 is small, which is convenient for the blade 66 to crush the shell powder at the bottom end of the crushing chamber 62 for separation; the top end of the crushing chamber 62 is inclined to connect with the connecting groove 63, and the bottom end of the funnel-shaped connecting groove 63 is located above the unloading plate 51; unqualified shell powder is blown into the top end of the crushing chamber 62 by the wind to make an arc movement, the top space of the crushing chamber 62 is large, and the shell powder is separated by the centrifugal force. The shell powder with large particle size and heavy weight is separated at the top of the crushing chamber 62, and the centrifugal force is large, so that the shell powder with large particle size slides along the side wall of the crushing chamber 62, enters the surface of the discharge plate 51 through the connecting groove 63, and part of the gas is blown to the surface of the discharge plate 51 through the connecting groove 63, pushing the shell powder on the surface of the discharge plate 51 into the space between the two rollers 52 for crushing, and then enters the crushing chamber 62 again after reducing the volume of the shell powder; and the shell powder with smaller particle size is closer to the rotating blade 66 due to the smaller centrifugal force, so that the blade 66 drives this part of the shell powder to rotate again in the crushing chamber 62 for crushing, which is convenient for crushing the shell powder; Step 4: Collect the shell powder with a particle size of less than 80 mesh discharged from the discharge funnel 11, mix various raw materials and make shell powder soil conditioner; the various raw materials of the soil conditioner are matched in the following proportions by mass percentage: 40-60% shell powder with a particle size of less than 80 mesh, 25-35% biochar, 20-30% organic fertilizer, and 0.3-0.7% microbial agent; shell powder and biochar, due to their porous surface structure, absorb and accommodate heavy metals in the soil, reduce the content of heavy metals in the soil, and shell powder is rich in alkaline components such as calcium carbonate and magnesium carbonate, which can directly neutralize the soil. Soil acidity increases pH value; organic fertilizer increases soil fertility, provides a large amount of nutrition and energy for soil microorganisms, accelerates the reproduction of soil microorganisms, improves the activity of soil microorganisms, and also increases the activity of some enzymes in the soil, which helps the microorganisms inside the microbial agent to reproduce rapidly; soil microorganisms can secrete organic acids, which react with alkaline components such as calcium carbonate and magnesium carbonate in shell powder to accelerate the decomposition efficiency of shell powder, increase calcium and magnesium ions in the soil, stimulate the growth of beneficial microorganisms, inhibit pathogens, regulate the structure of soil microbial communities, and enhance the self-purification ability of soil.

[0028] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A shell powder soil conditioner preparation device, characterized in that: include: A fixed box (1), a crushing mechanism (4) for crushing shells being installed on the top of the fixed box (1), and a compression mechanism (5) for crushing the crushed shells being installed inside the fixed box (1); The compression mechanism (5) comprises a feed plate (51), the feed plate (51) having a funnel-shaped interior is installed at the center of the fixed box (1), two rollers (52) are rotatably connected below the feed plate (51), and triangular protrusions (54) are evenly distributed on the side walls of the rollers (52); a partition (53) is installed inside the fixed box (1), and the side wall of the partition (53) is arc-shaped; A crushing mechanism (6) for crushing the shells is symmetrically mounted at both ends of the fixed box (1), the crushing mechanism (6) comprising a grinding plate (61), the grinding plates (61) being symmetrically mounted at both ends of the fixed box (1), a plurality of crushing chambers (62) having arc-shaped side walls being arranged inside the grinding plate (61), a feed trough (64) being arranged at the bottom end of the grinding plate (61), the feed trough (64) being arranged to connect the crushing chamber (62) with the partition plate (53); a connecting groove (63) being arranged at the top end of the grinding plate (61), and a discharge trough (67) being arranged at one end of the grinding plate (61), a filter screen (68) having an arc-shaped side wall being arranged inside the discharge trough (67); the interior of the grinding plate (61) is rotatably connected to a rotating shaft (65), a plurality of blades (66) being mounted on the side wall of the rotating shaft (65), and the blades (66) being rotatably connected to the interior of the crushing chamber (62); The side wall of the fixed box (1) is installed with a driving mechanism (2) for driving the crushing mechanism (4), the compression mechanism (5) and the pulverizing mechanism (6) to operate, and the interior of the fixed box (1) is installed with an air jet mechanism (3) for driving the shell powder to move and screen inside the pulverizing mechanism (6).

2. The shell powder soil conditioner preparation device according to claim 1, characterized in that: The crushing mechanism (4) comprises a crushing box (41), the center of the surface of the fixed box (1) is fixedly connected to the crushing box (41) in a hollow cylindrical shape, a plurality of reinforcing plates (44) are installed at the connection between the crushing box (41) and the fixed box (1), and a feeding funnel (42) is installed on the surface of the crushing box (41); the interior of the crushing box (41) is rotatably connected to a fixed shaft (43), and the side wall of the fixed shaft (43) is fixedly connected to a plurality of crushing hammers (45); the bottom end of the crushing box (41) is slidably connected to a screen (46) with an arc-shaped side wall, and the screen (46) is fixed to the inside of the crushing box (41) by bolts (48), and the width of the crushing box (41) is smaller than the length of the drum (52).

3. The shell powder soil conditioner preparation device according to claim 2, characterized in that: A plurality of pressure plates (47) with arc-shaped side walls are installed inside one side of the crushing box (41); the crushing hammer (45) is slidably connected between two of the pressure plates (47); and the width of one end of the crushing hammer (45) gradually increases; the length and thickness of the pressure plates (47) gradually increase from bottom to top, and the spacing between adjacent pressure plates (47) gradually increases from top to bottom.

4. The shell powder soil conditioner preparation device according to claim 3, characterized in that: The driving mechanism (2) comprises a motor (21), the motor (21) is mounted on the surface of the fixed box (1), the side wall of the fixed box (1) is fixedly connected to a mounting plate (24), the interior of the mounting plate (24) is rotatably connected to two main gears (26) and four auxiliary gears (27); the motor (21), the main gear (26), the two auxiliary gears (27), the rotating shaft (65) and one side of the fixed shaft (43) are all fixedly connected to a belt shaft (23), the belt shafts (23) are connected to each other via a belt (22), and the other two auxiliary gears (27) are meshed with the main gear (26); a bearing seat (25) is mounted on the side wall of the fixed box (1), the interior of the bearing seat (25) is rotatably connected to the fixed shaft (43).

5. The shell powder soil conditioner preparation device according to claim 4, characterized in that: The side wall of the roller (52) is fixedly connected to the main gear (26), the two main gears (26) are meshed with each other, the two main gears (26) rotate in opposite directions, and the diameter of the main gear (26) is greater than the diameter of the secondary gear (27); on the left side of the fixed box (1), the roller (52) and the rotating shaft (65) rotate clockwise, and on the right side of the fixed box (1), the roller (52) and the rotating shaft (65) rotate counterclockwise.

6. The shell powder soil conditioner preparation device according to claim 5, characterized in that: The jet mechanism (3) comprises an air inlet pipe (31), the air inlet pipe (31) being fixed to the side wall of the fixed box (1), and a plurality of connecting pipes (32) being installed on the side wall of the fixed box (1); a plurality of first nozzles (33) and second nozzles (34) having arc-shaped side walls are installed inside the grinding plate (61), the first nozzles (33) being aligned with the feed trough (64), and the second nozzles (34) being aligned with the filter screen (68).

7. The shell powder soil conditioner preparation device according to claim 6, characterized in that: The bottom end of the material discharge chute (64) is arranged at an angle, and a discharge funnel (11) is installed at one end of the material discharge chute (64); connecting plates (68) are installed at both ends of the filter screen (68), the connecting plates (68) are engaged with the inside of the grinding plate (61), and the width of the filter screen (68) is greater than the width of the material discharge chute (64).

8. The shell powder soil conditioner preparation device according to claim 7, characterized in that: The surface of the partition (53) is arranged to be inclined, and the distance between the partition (53) and the roller (52) gradually increases from top to bottom.

9. The shell powder soil conditioner preparation device according to claim 8, characterized in that: The width of the pulverizing chamber (62) gradually decreases from top to bottom, and the vertical distance between the rotating shaft (65) and the bottom surface of the pulverizing chamber (62) is smaller than the vertical distance between the rotating shaft (65) and the top surface of the pulverizing chamber (62); the top end of the pulverizing chamber (62) is obliquely connected to the connecting groove (63), and the bottom end of the funnel-shaped connecting groove (63) is located above the unloading plate (51).

10. The shell powder soil conditioner preparation device according to claim 9, characterized in that: A method for preparing a shell powder soil conditioner comprises the following steps: Step 1: connect the device to an external power source, connect the jet mechanism (3) to an external high-pressure blower, turn on the drive mechanism (2), and operate the crushing mechanism (4), the compression mechanism (5), and the pulverizing mechanism (6); Step 2: The shells are continuously beaten and crushed inside the crushing mechanism (4) until the shell particle size is less than 0.5 cm, and then they are crushed again inside the compression mechanism (5), and the crushed shells undergo a first diversion inside the compression mechanism (5); Step 3: The shell powder after diversion is diverted again by the jet mechanism (3) and then blown into the interior of the plurality of pulverizing mechanisms (6). The shell powder is processed and pulverized inside the pulverizing mechanism (6) in a single small space. The shell powder with a particle size smaller than 80 mesh is screened and discharged from the discharge funnel (11). Unqualified shell powder is separated inside the pulverizing mechanism (6). The shell powder with a large particle size enters the compression mechanism (5) again for crushing. The shell powder with a small particle size is continuously rotated and crushed inside the compression mechanism (5), thereby increasing the crushing efficiency. Step 4: Collect the shell powder with a particle size less than 80 mesh discharged from the discharge funnel (11), mix various raw materials and prepare a shell powder soil conditioner; the various raw materials of the soil conditioner are mixed in the following proportions by mass: 40-60% shell powder with a particle size less than 80 mesh, 25-35% biochar, 20-30% organic fertilizer, and 0.3-0.7% microbial agent.

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