CN112547285A

CN112547285A - Preparation method of mineral fertilizer

Info

Publication number: CN112547285A
Application number: CN202011486614.7A
Authority: CN
Inventors: 吴金祥; 王鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-03-26

Abstract

The invention provides a preparation method of a mineral fertilizer, which uses a mineral fertilizer preparation device, and the device comprises a support frame, a preparation box, a crushing mechanism, a reciprocating grinding mechanism, a vibrating screening mechanism and a collection frame. The invention provides a preparation method of a mineral fertilizer, which can solve the following problems in the preparation process of the mineral fertilizer: a. the ores contain rich elements and can improve the soil fertility, and the ores are generally in a stone structure, so that the elements contained in the ores are difficult to be directly absorbed by the soil, and the ores are often required to be crushed and ground into fine particles so as to be convenient for the soil to absorb; b. its function singleness of traditional breaker, crushing speed is slow, and the effect is poor, and the mineral disintegrating slag granule that obtains after its breakage is still great, can not directly apply soil as mineral fertilizer, need carry out the broken grinding once more for its work efficiency is low, and operating time is long.

Description

Preparation method of mineral fertilizer

Technical Field

The invention relates to the technical field of mineral fertilizers, and particularly relates to a preparation method of a mineral fertilizer.

Background

The mineral fertilizer is a novel, green, environment-friendly and efficient multi-element natural mineral fertilizer which is prepared by selecting various rare natural ores such as medical stones, calcites, gold stones, zeolites and the like as main raw materials, adding various beneficial biological bacteria and decocting by using modern high-tech means, and is rich in more than 50 elements such as phosphorus, potassium, calcium, silicon, sulfur, iron, zinc, manganese, molybdenum, boron, strontium, barium, bromine and the like and various beneficial bacteria. The application of mineral fertilizer can improve soil fertility, improve soil structure, reduce capillary water movement speed and ineffective evaporation of water, and has obvious effect of inhibiting salt return.

At present, the following problems exist in the preparation process of mineral fertilizers: a. the ores contain rich elements and can improve the soil fertility, and the ores are generally in a stone structure, so that the elements contained in the ores are difficult to be directly absorbed by the soil, and the ores are often required to be crushed and ground into fine particles so as to be convenient for the soil to absorb; b. its function singleness of traditional breaker, crushing speed is slow, and the effect is poor, and the mineral disintegrating slag granule that obtains after its breakage is still great, can not directly apply soil as mineral fertilizer, need carry out the broken grinding once more for its work efficiency is low, and operating time is long.

Disclosure of Invention

Technical problem to be solved

The invention provides a preparation method of a mineral fertilizer, which can solve the following problems in the preparation process of the mineral fertilizer: a. the ores contain rich elements and can improve the soil fertility, and the ores are generally in a stone structure, so that the elements contained in the ores are difficult to be directly absorbed by the soil, and the ores are often required to be crushed and ground into fine particles so as to be convenient for the soil to absorb; b. its function singleness of traditional breaker, crushing speed is slow, and the effect is poor, and the mineral disintegrating slag granule that obtains after its breakage is still great, can not directly apply soil as mineral fertilizer, need carry out the broken grinding once more for its work efficiency is low, and operating time is long.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a mineral fertilizer preparation method, its uses mineral fertilizer preparation facilities, and the device includes support frame, preparation case, crushing mechanism, reciprocal grinding mechanism, vibrations screening mechanism and collection frame, and the concrete method is as follows when adopting the operation of above-mentioned mineral fertilizer preparation facilities:

s1, inspection device: checking an apparatus operating state before using the mineral fertilizer production apparatus;

s2, mineral preparation: preparing mineral fragments to be crushed and ground;

s3, crushing minerals: pouring the mineral fragments into a preparation box, and crushing the mineral fragments through a crushing mechanism;

s4, grinding minerals: grinding and screening the minerals crushed in the S3 through a reciprocating grinding mechanism and a vibration screening mechanism, and then collecting the minerals in a collecting frame 4;

the preparation box is fixedly arranged on the support frame, the whole preparation box is a step mechanism which is gradually enlarged from top to bottom, crushing mechanisms are arranged on the upper end surface and the inner upper end of the preparation box, a reciprocating grinding mechanism is arranged below the crushing mechanism, the reciprocating grinding mechanism is arranged in the preparation box, the vibration screening mechanism is also arranged in the preparation box and is positioned below the reciprocating grinding mechanism, and a collecting frame is arranged below the preparation box; wherein:

the crushing mechanism comprises a feeding hole, a preparation cavity, a discharging hole, crushing cylinders, crushing gears, a crushing motor, a pressing block and a lifting branched chain, wherein the preparation cavity is formed in the preparation box, the feeding hole communicated with the preparation cavity is formed in the upper end of the side wall of the preparation box, the discharging hole communicated with the preparation cavity is formed in the lower end face of the preparation box, the discharging hole is of a round platform structure with a large upper part and a small lower part, a collecting frame is arranged below the discharging hole, the crushing cylinders which are bilaterally symmetrical are arranged in the preparation cavity, connecting shafts are fixed at two ends of the crushing cylinders and are fixed on the front end face and the rear end face of the preparation box through bearings, the crushing gears are fixedly sleeved on the connecting shafts at the same end of the two crushing cylinders, the two crushing gears are meshed and connected with each other and are positioned outside the preparation box, the crushing motor is fixed on the outer wall of the preparation box through a motor base, a pressing block is arranged in the preparation cavity in a vertically sliding mode and located above the feeding hole, and the pressing block is connected with the lifting branched chain.

The reciprocating grinding mechanism comprises a grinding block, a connecting frame, a moving rod, an auxiliary block, a moving groove and an intermittent branched chain, wherein the connecting frame is arranged in the preparation cavity, the lower end of the connecting frame is fixedly connected with a plurality of grinding blocks, the upper end face of each grinding block is set to be of a triangular structure for avoiding mineral accumulation, the connecting frame is located below the crushing barrel, the moving rods which are symmetrical in the front and back direction are fixed on the left side and the right side of the connecting frame, the auxiliary block is fixed on the end face, far away from the connecting frame, of each moving rod, the moving groove communicated with the preparation cavity is formed in the left inner side wall and the right side of the preparation box, the auxiliary block is located in the moving groove, the moving block is arranged in the moving groove in a sliding mode, the front end and the rear end of the moving block are.

The vibration screening mechanism comprises a screening box, a fixing block, a spring rod, a cam, a vibration shaft, a linkage gear, a transmission chain and a vibration motor, wherein the screening box is arranged in the preparation cavity, the grinding block is arranged in the screening box, the lower end face of the screening box is fixed with the fixing block which is symmetrical front and back, the two ends of the upper end face of the fixing block are fixedly connected with the spring rod, the upper end face of the spring rod is fixed in the preparation box, the spring rod has thrust for pushing the fixing block to move downwards, the two ends below the fixing block are provided with the cam, the cam is contacted with the fixing block, the cam under the same end of the two fixing blocks is fixedly sleeved on the same vibration shaft, the two ends of the vibration shaft are fixed in the preparation box through bearings, one end of the vibration shaft is fixedly sleeved with the linkage gear, and the two linkage gears are, the linkage gear and the transmission chain are located outside the preparation box, one end of the vibration shaft is connected with the vibration motor through the coupler, and the vibration motor is fixed on the outer wall of the preparation box through the motor base.

Preferably, the lift branch chain include steel wire, coiling dish, winding shaft, winding gear, a chain, mount and winding motor, preparation case up end set up with the round hole that prepares the chamber intercommunication, press a briquetting up end corner fixedly connected with steel wire, the steel wire other end passes the round hole and convolutes on the coiling dish, the fixed cover of coiling dish is established on the winding shaft, two of front and back symmetry the winding shaft both ends are passed through the bearing and are installed on the mount, the mount is fixed in preparation case up end left and right sides department, the fixed cover of coiling epaxial is equipped with winding gear, two winding motor is connected through a chain, one winding shaft one end is connected with the winding motor output through the shaft coupling, the winding motor output passes through the motor cabinet and fixes on the mount lateral wall.

Preferably, the intermittent branched chain comprises an incomplete gear, a rotating shaft, a rotating gear, a second chain, a driving shaft and a grinding motor, wherein a planar rack is arranged on the upper end surface and the lower end surface inside the moving block, the incomplete gear is arranged inside the moving block and is meshed with the planar rack, the incomplete gear is sleeved on the rotating shaft, the rotating shaft is fixed in the preparation box through a bearing, the rotating gear is sleeved at the other end of the rotating shaft, a mounting groove is arranged inside the preparation box, the mounting groove is positioned in the front wall of the preparation box, the driving shaft is arranged in the mounting groove and is mounted in the preparation box through the bearing, the driving shaft is sleeved with bilaterally symmetrical rotating gears, the rotating gears at the left side and the right side are respectively connected through the second chain, one end of the driving shaft is connected with the, the grinding motor is fixed on the outer side wall of the preparation box through a motor base.

Preferably, the outer side wall of the crushing cylinder is uniformly provided with pointed cones for crushing minerals.

Preferably, the corresponding angle of the teeth of the incomplete gear is 180 degrees.

Preferably, the screening box is of a hollow shell structure with an opening at the upper end, and the lower end face of the screening box is of a vertically-through net-shaped structure.

(III) advantageous effects

1. The invention provides a preparation method of a mineral fertilizer, which can solve the following problems in the preparation process of the mineral fertilizer: a. the ores contain rich elements and can improve the soil fertility, and the ores are generally in a stone structure, so that the elements contained in the ores are difficult to be directly absorbed by the soil, and the ores are often required to be crushed and ground into fine particles so as to be convenient for the soil to absorb; b. its function singleness of traditional breaker, crushing speed is slow, and the effect is poor, and the mineral disintegrating slag granule that obtains after its breakage is still great, can not directly apply soil as mineral fertilizer, need carry out the broken grinding once more for its work efficiency is low, and operating time is long.

2. According to the crushing mechanism designed by the invention, the crushing barrel is utilized to crush the mineral fragments, the pointed cone is arranged on the crushing barrel, the crushing speed can be increased, meanwhile, the pressing block is arranged above the crushing barrel, the mineral fragments above the crushing barrel are extruded through the gravity of the pressing block, and the situation that the mineral fragments always rotate above the crushing barrel and cannot be crushed by the crushing barrel is effectively avoided.

3. The reciprocating grinding mechanism designed by the invention utilizes the characteristic of incomplete gears, and drives the moving block to do reciprocating motion in the moving groove, so that the grinding block can reciprocate in the screening box, the grinding and grinding of minerals in the screening box are realized, wherein a triangular structure is arranged above the grinding block, the dropped minerals fall into the screening frame along the inclined plane above the grinding block, and the minerals are prevented from being accumulated on the upper end surface of the grinding block.

4. According to the vibrating screening mechanism designed by the invention, the structural characteristics of the cam are utilized, the vibrating shaft is rotated through the vibrating motor, so that the cam is driven to rotate, the screening box on the fixed block is vertically reciprocated under the action of the spring rod, the vertical vibrating screening of the screening box is realized, the screening box and the grinding block can extrude and grind minerals, the screening box and the grinding block extrude, crush and crush the minerals in a reciprocating manner under the matching action of the vibrating screening mechanism and the reciprocating grinding mechanism, and the qualified minerals can be filtered and fall through mesh holes at the bottom end of the screening box and finally collected in the collecting frame.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a flow chart of the present invention;

FIG. 2 is a first perspective three-dimensional block diagram of the present invention;

FIG. 3 is a second perspective three-dimensional block diagram of the present invention;

FIG. 4 is a front cross-sectional view of the present invention;

FIG. 5 is a top view of the reciprocating grinding mechanism of the present invention;

FIG. 6 is a side cross-sectional view of a partial gear, traveling block and traveling groove of the present invention;

FIG. 7 is a three-dimensional block diagram of the reciprocating grinding mechanism and the vibratory screening mechanism of the present disclosure;

FIG. 8 is a three-dimensional block diagram of a reciprocating grinding mechanism in accordance with the teachings of the present invention;

FIG. 9 is a three-dimensional structural view of the lifting/lowering chain in the present specification.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.

The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.

As shown in fig. 1 to 9, a method for preparing mineral fertilizer by using a mineral fertilizer preparation device, which comprises a support frame 1, a preparation box 2, a crushing mechanism 3, a reciprocating grinding mechanism 4, a vibrating screening mechanism 5 and a collecting frame 6, comprises the following specific steps:

s2, mineral preparation: preparing mineral fragments to be crushed and ground;

s3, crushing minerals: pouring the mineral fragments into a preparation box 2, and crushing the mineral fragments by a crushing mechanism 3;

s4, grinding minerals: grinding and screening the crushed ore S3 through a reciprocating grinding mechanism 4 and a vibration screening mechanism 5, and then collecting the crushed ore into a collecting frame 64;

preparation case 2 fixed mounting on support frame 1, preparation case 2 is whole to be from last down crescent step mechanism, 2 up end of preparation case and inside upper end are provided with

crushing mechanism

3, 3 below of crushing mechanism are provided with reciprocal grinding mechanism 4, reciprocal grinding mechanism 4 is for preparing 2 insides, vibrations screening mechanism 5 also sets up in preparation case 2, and is located the below of reciprocal grinding mechanism 4, preparation case 2 below is provided with collection frame 6.

The crushing mechanism 3 comprises a feeding hole 31, a preparation cavity 32, a discharging hole 33, a crushing cylinder 34, a crushing gear 35, a crushing motor 36, a pressing block 37 and a lifting branched chain 38, wherein the preparation cavity 32 is formed inside the preparation box 2, the feeding hole 31 communicated with the preparation cavity 32 is formed in the upper end of the side wall of the preparation box 2, the discharging hole 33 communicated with the preparation cavity 32 is formed in the lower end face of the preparation box 2, the discharging hole 33 is of a round platform structure with a large upper part and a small lower part, a collecting frame 6 is arranged below the discharging hole 33, the crushing cylinders 34 which are bilaterally symmetrical are arranged in the preparation cavity 32, pointed cones used for crushing minerals are uniformly arranged on the outer side walls of the crushing cylinders 34, connecting shafts are fixed at two ends of the crushing cylinders 34, the connecting shafts are fixed on the front and rear end faces of the preparation box 2 through bearings, and the crushing gears 35, the two crushing gears 35 are meshed and connected and are positioned outside the preparation box 2, one end of one connecting shaft is connected with the output end of a crushing motor 36 through a coupler, the crushing motor 36 is fixed on the outer wall of the preparation box 2 through a motor base, a pressing block 37 is arranged in the preparation cavity 32 in a vertically sliding mode, the pressing block 37 is positioned above the feed port 31, and the pressing block 37 is connected with a lifting branched chain 38; the lifting branched chain 38 comprises a steel wire 381, a winding disc 382, a winding shaft 383, a winding gear 384, a first chain 385, a fixed frame 386 and a winding motor 387, a round hole communicated with the preparation cavity 32 is arranged on the upper end surface of the preparation box 2, a steel wire 381 is fixedly connected at the corner of the upper end surface of the pressing block 37, the other end of the steel wire 381 passes through a circular hole and is wound on a winding disc 382, the winding disc 382 is fixedly sleeved on a winding shaft 383, two ends of the two front and back symmetrical winding shafts 383 are mounted on a fixed frame 386 through bearings, the fixing frame 386 is fixed at the left side and the right side of the upper end face of the preparation box 2, a winding gear 384 is fixedly sleeved on the winding shaft 383, two winding motors 387 are connected through a chain 385, one winding shaft 383 is connected with the output end of the winding motor 387 through a coupler, and the output end of the winding motor 387 is fixed on the side wall of the fixing frame 386 through a motor base.

During specific work, the crushing motor 36 is started, the crushing motor 36 drives the crushing cylinders 34 to rotate through the connecting shaft, the crushing gears 35 on the crushing cylinders 34 synchronously rotate, the crushing gears 35 on the two crushing cylinders 34 are meshed and connected, the two crushing cylinders 34 rotate in opposite directions and rotate from top to bottom, mineral fragments are poured into the preparation cavity 32 from the feed port 31, the crushing cylinders 34 rotate to extrude the crushed mineral fragments, the crushed mineral fragments fall below, the pointed cones on the crushing cylinders 34 can accelerate the crushing speed and improve the crushing efficiency, meanwhile, the winding motor 387 is started, the winding motor 387 drives the winding gear 384 on winding to rotate, the winding gear 384 is connected through a chain 385, the two winding shafts 383 synchronously rotate, the winding disc 382 fixedly sleeved on the winding shafts 383 is driven, and the winding disc 382 is not winding the collection steel wire 381, make according to briquetting 37 under the effect of gravity move down, until with the preparation chamber 32 in the mineral fragment extrusion mutually, push mineral fragment through pressing briquetting 37 extrusion, can effectively avoid mineral fragment to roll on broken section of thick bamboo 34 and lead to unable breakage, press briquetting 37 can press mineral fragment constantly, processing crushing speed.

The reciprocating grinding mechanism 4 comprises a grinding block 41, a connecting frame 42, a moving rod 43, an auxiliary block 44, a moving block 45, a moving groove 46 and an intermittent branched chain 47, wherein the connecting frame 42 is arranged in the preparation chamber 32, the lower end of the connecting frame 42 is connected with a plurality of grinding blocks 41, the upper end surface of each grinding block 41 is of a triangular structure for avoiding mineral accumulation, the connecting frame 42 is positioned below the crushing cylinder 34, the moving rods 43 which are symmetrical in the front and back directions are fixed on the left side and the right side of the connecting frame 42, the auxiliary block 44 is fixed on the end surface of each moving rod 43 far away from the connecting frame 42, the moving groove 46 communicated with the preparation chamber 32 is formed in the left inner side wall and the right inner side wall of the preparation box 2, the auxiliary block 44 is positioned in the moving groove 46, the moving block 45 is arranged in the moving groove 46 in a sliding manner, the front end and the back end of the moving block 45, the moving block 45 is connected with the intermittent branched chain 47; the intermittent branched chain 47 comprises an incomplete gear 471, a rotating shaft 472, a rotating gear 473, a second chain 474, a driving shaft 475 and a grinding motor 476, wherein planar racks are arranged on the upper end face and the lower end face inside the moving block 45, the incomplete gear 471 is arranged inside the moving block 45, the angle corresponding to the gear teeth of the incomplete gear 471 is 180 degrees, the incomplete gear 471 is meshed with the planar racks and is connected with the rotating shaft 472, the incomplete gear 471 is sleeved on the rotating shaft 472, the rotating shaft 472 is fixed in the preparation box 2 through a bearing, the rotating gear 473 is sleeved at the other end of the rotating shaft 472, a mounting groove is arranged inside the preparation box 2 and is positioned in the front wall of the preparation box 2, the driving shaft 475 is arranged in the preparation box 2 through a bearing, and the driving shaft 475 is sleeved with the rotating gear 473 which is, the rotating gears 473 on the left side and the right side are respectively connected through a second chain 474, one end of the driving shaft 475 is connected with the output end of the grinding motor 476 through a coupler, and the grinding motor 476 is fixed on the outer side wall of the preparation box 2 through a motor base.

When the device works specifically, the grinding motor 476 is started, the grinding motor 476 drives the driving shaft 475 to rotate, so that the rotating gear 473 on the driving shaft 475 rotates synchronously, the rotating gear 473 rotates the rotating gear 473 on the rotating shaft 472 through the second chain 474, so that the rotating shaft 472 rotates, meanwhile, the rotating shaft 472 drives the incomplete gear 471 fixedly sleeved on the rotating shaft 472 to rotate, the incomplete gear 471 is in clearance meshing transmission with two plane racks above and below the moving block 45, so that the moving block 45 moves in the moving groove 46, wherein the corresponding angle of the gear teeth of the incomplete gear 471 is 180 degrees, so that the distances of the incomplete gear 471 driving the moving block 45 to move back and forth in a reciprocating manner are the same, the phenomena of different moving distances, collision of parts and damage to the device are avoided, when the moving block 45 moves back and forth in the moving groove 46, the moving rod 43 is moved synchronously through, so that the connecting frame 42 is also moved synchronously to reciprocate the grinding block 41 back and forth.

The vibrations screening mechanism 5 including screening case 51, fixed block 52, spring bar 53, cam 54, vibrations axle 55, linkage gear 56, driving chain 57 and shock dynamo 58, preparation chamber 32 in be provided with screening case 51, screening case 51 be upper end open-ended hollow shell structure, screening case 51 down the terminal surface be the network structure who link up from top to bottom, it sets up in screening case 51 to grind piece 41, screening case 51 lower extreme terminal surface is fixed with the fixed block 52 of longitudinal symmetry, fixed block 52 upper end both ends fixedly connected with spring bar 53, spring bar 53 up end is fixed in preparation incasement 2, spring bar 53 has the thrust that promotes fixed block 52 and move down, fixed block 52 below both ends department be provided with cam 54, cam 54 contacts with fixed block 52, two fixed blocks 52 with the same end below the fixed cover of cam 54 is established on same vibrations axle 55, vibrations axle 55 both ends are fixed in preparation case 2 through the bearing, the fixed cover of vibrations axle 55 one end is equipped with link gear 56, two link gear 56 is connected through driving chain 57, link gear 56 and driving chain 57 are located preparation case 2 outsidely, one vibrations axle 55 one end is connected with shock dynamo 58 through the shaft coupling, shock dynamo 58 passes through the motor cabinet to be fixed on preparation case 2 outer wall.

During specific work, mineral fragments crushed by the crushing mechanism 3 fall into the screening box 51, the vibration motor 58 is started while the grinding block 41 of the reciprocating grinding mechanism 4 moves back and forth in a reciprocating manner, the vibration motor 58 drives one vibration shaft 55 to rotate and enables the linkage gear 56 on the vibration shaft to rotate, the linkage gear 56 enables the linkage gear 56 on the other vibration shaft 55 to rotate through the transmission chain 57, so that the vibration shaft 55 rotates and further drives the cam 54 to rotate, the cam 54 rotates to enable the cam 54 to push the fixing block 52 in an abutting manner and enable the fixing block 52 to move upwards, when the cam 54 does not push the fixing block 52 in an abutting manner, the fixing block 52 is enabled to move downwards in time under the action of the spring rod 53, and at the moment, one up and down reciprocating movement of the fixing block 52 is completed, so that the screening box 51 on the fixing block 52 vibrates upwards and downwards to screen, and the mineral fragments in the screening box 51 are extruded and ground with, meanwhile, the grinding block 41 can move back and forth in a reciprocating mode, so that the mineral fragments can move back and forth for grinding when being extruded and ground up and down, the qualified ground mineral fragments can be filtered through the mesh holes of the screening box 51, and finally the mineral fragments can fall into the collecting frame 6 below in a centralized mode through the discharge hole 33 on the lower end face of the preparation box 2.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mineral fertilizer preparation method, its uses mineral fertilizer preparation facilities, and the device includes support frame (1), preparation case (2), broken mechanism (3), reciprocal grinding mechanism (4), vibrations screening mechanism (5) and collection frame (6), its characterized in that: the specific method for adopting the mineral fertilizer preparation device to operate is as follows:

s2, mineral preparation: preparing mineral fragments to be crushed and ground;

s3, crushing minerals: pouring the mineral fragments into a preparation box (2), and crushing the mineral fragments through a crushing mechanism (3);

s4, grinding minerals: grinding and screening the crushed ore S3 by a reciprocating grinding mechanism (4) and a vibrating screening mechanism (5), and then collecting the crushed ore into a collection frame (6) (4);

the preparation box (2) is fixedly arranged on the support frame (1), the whole preparation box (2) is a step mechanism which is gradually increased from top to bottom, the crushing mechanisms (3) are arranged on the upper end surface and the upper end inside the preparation box (2), a reciprocating grinding mechanism (4) is arranged below the crushing mechanism (3), the reciprocating grinding mechanism (4) is arranged in the preparation box (2), the vibration screening mechanism (5) is also arranged in the preparation box (2) and is positioned below the reciprocating grinding mechanism (4), and a collecting frame (6) is arranged below the preparation box (2); wherein:

the crushing mechanism (3) comprises a feeding hole (31), a preparation cavity (32), a discharging hole (33), a crushing barrel (34), a crushing gear (35), a crushing motor (36), a pressing block (37) and a lifting branched chain (38), wherein the preparation cavity (32) is formed in the preparation box (2), the feeding hole (31) communicated with the preparation cavity (32) is formed in the upper end of the side wall of the preparation box (2), the discharging hole (33) communicated with the preparation cavity (32) is formed in the lower end face of the preparation box (2), the discharging hole (33) is of a circular truncated cone structure with a large upper part and a small lower part, a collecting frame (6) is arranged below the discharging hole (33), the preparation cavity (32) is internally provided with the crushing barrels (34) which are bilaterally symmetrical, connecting shafts are fixed at two ends of the crushing barrel (34), and are fixed on the front and rear end faces of the preparation, the crushing gears (35) are fixedly sleeved on connecting shafts at the same ends of the two crushing cylinders (34), the two crushing gears (35) are meshed and connected and are located outside the preparation box (2), one end of one connecting shaft is connected with the output end of a crushing motor (36) through a coupler, the crushing motor (36) is fixed on the outer wall of the preparation box (2) through a motor base, a pressing block (37) is arranged in the preparation cavity (32) in a vertically sliding mode, the pressing block (37) is located above the feeding port (31), and the pressing block (37) is connected with a lifting branch chain (38);

the reciprocating grinding mechanism (4) comprises grinding blocks (41), a connecting frame (42), a moving rod (43), auxiliary blocks (44), a moving block (45), a moving groove (46) and intermittent branched chains (47), the connecting frame (42) is arranged in the preparation cavity (32), the lower end of the connecting frame (42) is connected with the grinding blocks (41), the upper end face of each grinding block (41) is of a triangular structure for avoiding mineral accumulation, the connecting frame (42) is positioned below the crushing cylinder (34), the moving rods (43) which are symmetrical in the front and back are fixed on the left side and the right side of the connecting frame (42), the auxiliary blocks (44) are fixed on the end faces, far away from the connecting frame (42), of the moving rods (43), the auxiliary blocks (44) are fixed on the left inner side wall and the right inner side wall of the preparation box (2), the moving grooves (46) communicated with the preparation cavity (32) are formed in the left inner wall and the right side wall, a moving block (45) is arranged in the moving groove (46) in a sliding mode, the front end and the rear end of the moving block (45) are fixedly connected to the auxiliary block (44), the moving block (45) is of a reversed-square structure with left and right openings, and the moving block (45) is connected with the intermittent branched chain (47);

the vibration screening mechanism (5) comprises a screening box (51), fixing blocks (52), spring rods (53), cams (54), vibration shafts (55), linkage gears (56), a transmission chain (57) and a vibration motor (58), wherein the screening box (51) is arranged in the preparation cavity (32), the grinding block (41) is arranged in the screening box (51), the lower end face of the screening box (51) is fixedly provided with the fixing blocks (52) which are symmetrical front and back, the two ends of the upper end face of each fixing block (52) are fixedly connected with the spring rods (53), the upper end face of each spring rod (53) is fixed in the preparation box (2), the spring rods (53) are provided with thrust for pushing the fixing blocks (52) to move downwards, the two ends below the fixing blocks (52) are provided with the cams (54), the cams (54) are in contact with the fixing blocks (52), the cams (54) below the same ends of the two fixing blocks (52) are fixedly sleeved on the same vibration shaft (55), vibrations axle (55) both ends are passed through the bearing and are fixed in preparation case (2), the fixed cover of vibrations axle (55) one end is equipped with linkage gear (56), two linkage gear (56) is connected through driving chain (57), linkage gear (56) and driving chain (57) are located preparation case (2) outside, one vibrations axle (55) one end is connected with shock dynamo (58) through the shaft coupling, shock dynamo (58) are fixed on preparation case (2) outer wall through the motor cabinet.

2. A method of producing a mineral fertilizer according to claim 1, characterized in that: the lifting branched chain (38) comprises a steel wire (381), a winding disc (382), a winding shaft (383), a winding gear (384), a first chain (385), a fixing frame (386) and a winding motor (387), a round hole communicated with the preparation cavity (32) is formed in the upper end face of the preparation box (2), the steel wire (381) is fixedly connected with the corner of the upper end face of the pressing block (37), the other end of the steel wire (381) penetrates through the round hole to be wound on the winding disc (382), the winding disc (382) is fixedly sleeved on the winding shaft (383), two ends of the winding shaft (383) which are symmetrical in the front-back direction are mounted on the fixing frame (386) through bearings, the fixing frame (386) is fixed at the left side and the right side of the upper end face of the preparation box (2), the winding shaft (383) is fixedly sleeved with the winding gear (384), and the winding motor (387) is connected through the first chain (, one end of the winding shaft (383) is connected with the output end of the winding motor (387) through a coupler, and the output end of the winding motor (387) is fixed on the side wall of the fixing frame (386)) through a motor base.

3. A method of producing a mineral fertilizer according to claim 1, characterized in that: the intermittent branched chain (47) comprises an incomplete gear (471), a rotating shaft (472), a rotating gear (473), a second chain (474), a driving shaft (475) and a grinding motor (476), the upper end face and the lower end face of the inner part of the moving block (45) are provided with plane racks, the incomplete gear (471) is arranged in the moving block (45) in a meshed manner, the incomplete gear (471) is sleeved on the rotating shaft (472), the rotating shaft (472) is fixed in the preparation box (2) through a bearing, the other end of the rotating shaft (472) is sleeved with the rotating gear (473), a mounting groove is arranged in the preparation box (2) and is positioned in the front wall of the preparation box (2), the driving shaft (475) is arranged in the mounting groove, and the driving shaft (475) is arranged in the preparation box (2) through a bearing, the driving shaft (475) is sleeved with bilaterally symmetrical rotating gears (473), the rotating gears (473) are located on the left side and the right side and are connected through a second chain (474), one end of the driving shaft (475) is connected with the output end of the grinding motor (476) through a coupler, and the grinding motor (476) is fixed on the outer side wall of the preparation box (2) through a motor base.

4. A method of producing a mineral fertilizer according to claim 1, characterized in that: the outer side wall of the crushing barrel (34) is uniformly provided with pointed cones for crushing minerals.

5. A method of producing a mineral fertilizer according to claim 3, characterized in that: the corresponding angle of the teeth of the incomplete gear (471) is 180 degrees.

6. A method of producing a mineral fertilizer according to claim 1, characterized in that: the screening box (51) is of a hollow shell structure with an opening at the upper end, and the lower end face of the screening box (51) is of a vertically-through net-shaped structure.