A crushing device for fertilizer production and use method thereof

Abstract

The present invention belongs to the technical field of fertilizer production, and in particular to a crushing device for fertilizer production and a method of using the same, comprising a crusher and a hopper installed outside a material port on one side of the crusher surface, and a material receiving box plugged into a socket at the bottom of the crusher, wherein a silo is fixedly provided on the inner wall of the crusher, a fan and a filter plate are respectively installed at positions on both sides of the crusher surface corresponding to the silo surface, and a material guide plate is connected to the top of the silo at both sides of the inner wall of the crusher; by arranging a dust blowing component, while the fan blows air, a driving motor B can drive a sprocket disc B to rotate synchronously through a sprocket disc A, so that while the sprocket disc B drives a rotating disk to rotate, the rotating disk pushes a connecting rod to swing back and forth through a pin shaft, and the connecting rod can drive a nozzle to swing back and forth through a connecting plate, thereby increasing the air supply range and facilitating dust removal operations.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a crushing device for fertilizer production and a use method thereof.

[0002] Chemical fertilizers, referred to as fertilizers, are fertilizers made by chemical and (or) physical methods that contain one or more nutrients required for the growth of crops. In the process of fertilizer production, fertilizers are very susceptible to the influence of weather and clump. Therefore, in order to eliminate clumps, crushers are needed to crush the clumps.

[0003] The crushing method is usually to pour the fertilizer into the crusher through the hopper, and the passing fertilizer is crushed by the crushing roller. During the crushing process, when the broken fertilizer falls, the dust on its surface will float due to the vibration, and as the fertilizer is gradually delivered, the dust will gradually intensify, generating dust and polluting the working environment. In severe cases, there is even a risk of dust explosion.

[0004] In order to solve the above problems, the present application proposes a crushing device for fertilizer production and a method of using the same. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a crushing device for fertilizer production and a method of using the same, which has the characteristics of assisting dust blowing and filter plate cleaning.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crushing device for fertilizer production, comprising a crusher and a hopper installed outside a material port on one side of the crusher surface and a material receiving box plugged into a socket at the bottom of the crusher, a material bin is fixedly provided on the inner wall of the crusher, a fan and a filter plate are respectively installed at positions on both sides of the crusher surface corresponding to the surface of the material bin, and a material guide plate is connected to the top of the material bin at both sides of the inner wall of the crusher, and the material guide plate is fixedly connected to the inner wall of the crusher, and also includes a dust blowing component installed in the material bin and corresponding to the position of the fan;

[0007] The dust blowing assembly includes an outer shell welded to the inner wall of the silo and a turntable rotatably connected to the outer shell, a connecting rod is provided on a sliding sleeve outside a pin shaft welded on one side of the surface of the turntable, a connecting plate is welded on the side of the connecting rod away from the turntable, and the surface of the connecting rod is located on the side of the connecting plate and is rotatably connected to the inner wall of the outer shell through a rotating shaft, a nozzle is fixedly provided on one side of the surface of the connecting plate, and the nozzle is slidably connected in an arc groove opened on the surface of the outer shell, a hose is fixedly provided on one side of the surface of the nozzle, and a connecting pipe is connected to a flange at one end of the hose away from the nozzle, and an end of the connecting pipe away from the hose passes through the silo and the crusher, and the connecting pipe is flange-connected to the air outlet of the fan.

[0008] As a preferred crushing device for fertilizer production of the present invention, it also includes a drive motor B bolted to one side of the outer shell surface, the output shaft of the drive motor B penetrates the outer shell, and the output shaft of the drive motor B is fixedly provided with a gear disc A, one side of the surface of the gear disc A is meshed with a gear disc B, and the gear disc B is fixedly sleeved on the surface of the mounting shaft on one side of the rotating disk.

[0009] As a preferred crushing device for fertilizer production of the present invention, the surface of the toothed disc B has multiple groups of teeth, and the multiple groups of teeth are distributed in a ring shape with equal distances.

[0010] As a preferred crushing device for fertilizer production of the present invention, it also includes a cleaning component installed on the inner wall of the crusher and located above the filter plate;

[0011] The cleaning assembly includes a shell welded to the inner wall of the crusher, a drive motor A fixedly arranged in the shell, and a half gear welded to the end of the output shaft of the drive motor A, one side of the half gear is meshed with a gear rod, the gear rod is slidably connected to the grooves opened on both sides of the shell surface, and a scraper is welded on the surface of one side of the gear rod extending out of the groove, a T-shaped limit block is welded on the side of the scraper away from the gear rod, and the scraper is slidably connected to the T-shaped groove opened on the surface of the filter plate through the limit block.

[0012] As a preferred crushing device for fertilizer production of the present invention, a sliding rod is welded in a sliding groove opened at the inner wall of the shell corresponding to the position of the tooth rod, a sliding sleeve is provided on the surface of the sliding rod, and a side of the sliding sleeve extending out of the sliding groove is fixedly connected to the surface of the tooth rod, a stress spring is wound on the surface of the sliding rod located on one side of the sliding sleeve, and both ends of the stress spring are respectively fixedly connected to the sliding sleeve and the shell.

[0013] As a preferred crushing device for fertilizer production of the present invention, a slot is provided on the scraper surface at a position corresponding to the air outlet on the filter plate surface, a brush plate is inserted into the slot, a spring rod is fixedly provided on one side of the brush plate inserted into the scraper, and the end of the spring rod away from the brush plate is fixedly connected to the inner wall of the scraper.

[0014] As a preferred crushing device for fertilizer production of the present invention, it also includes a material discharge assembly installed on the inner wall of the silo and located below the outer shell;

[0015] The unloading assembly includes a unloading plate hinged on one side of the inner wall of the silo and a connecting shaft rotatably connected to the inner wall of the silo and located on one side of the unloading plate, a roller is fixedly sleeved on the surface of the connecting shaft, and grooves equidistantly distributed in an annular shape are opened on the surface of the roller, and a roller is rotatably connected in the groove, and the roller contacts the surface of the unloading plate through the roller.

[0016] As a preferred crushing device for fertilizer production of the present invention, a plurality of guide blocks with triangular structures are welded on the surface of the unloading plate at positions corresponding to the rotating rollers, and the guide blocks are arranged end to end.

[0017] The present invention also provides a method for using a crushing device for fertilizer production, comprising:

[0018] S1. Preliminary preparation: All the power equipment in the product is electrically connected to the external power supply through the line, and the external control device is centrally controlled. At the same time, the connecting shaft is connected to the external motor to provide drive;

[0019] S2. Feeding: Pour the fertilizer into the crusher through the hopper and guide it to the center through the guide plate inside the crusher;

[0020] S3, crushing: the crushing roller in the crusher is controlled by an external control device to operate, so as to crush the fertilizer agglomerates falling through the guide plate;

[0021] S4, dust blowing: control the fan to work through the external control device, so that the fan conveys gas to the nozzle through the connecting pipe and hose, and sprays it through the connecting plate, so that the airflow guides the dust in the crusher and is discharged through the filter plate;

[0022] S5, cleaning: At the same time, the driving motor A is controlled by an external control device to work, and the driving motor A drives the half gear to rotate and pushes the gear rod to move, so that the gear rod pushes the scraper to move along the filter plate, thereby cleaning the surface of the filter plate;

[0023] S6. Discharging: The external motor drives the connecting shaft to rotate, so that the connecting shaft drives the roller to rotate. At the same time, the roller can intermittently lift the unloading plate through the roller, so as to shake off the fertilizer accumulated on the surface of the unloading plate;

[0024] S7, collection: The crushed fertilizer falls into the receiving box due to gravity. At this time, the receiving box is pulled down and pulled out of the crusher to take out the fertilizer.

[0025] Further, in S3, the top of the silo is an inwardly inclined closing structure, and the opening of the silo coincides with the channel formed between the guide plates.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] By setting up the dust blowing component, while the fan is blowing air, the driving motor B can drive the toothed disc B to rotate synchronously through the toothed disc A, so that while the toothed disc B drives the turntable to rotate, the turntable pushes the connecting rod to swing back and forth through the pin shaft, and the connecting rod can drive the nozzle to swing back and forth through the connecting plate, thereby increasing the air supply range and facilitating people to perform dust removal operations.

[0028] By setting up a cleaning component and controlling the operation of the drive motor A through an external control device, the drive motor A drives the half gear to rotate and pushes the gear rod to move, so that the gear rod pushes the scraper to move along the filter plate, thereby cleaning the surface of the filter plate.

[0029] By setting up a feeding assembly, after the crushed fertilizer falls onto the feeding plate, an external motor drives the connecting shaft to rotate, so that the connecting shaft drives the roller to rotate. At the same time, the roller can intermittently lift the feeding plate through the rotating roller, thereby shaking off the fertilizer accumulated on the surface of the feeding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure between the crusher and the guide plate in the present invention;

[0033] Figure 3 It is a schematic diagram of the structure inside the crusher of the present invention;

[0034] Figure 4 is a schematic cross-sectional structure diagram of the dust blowing assembly in the present invention;

[0035] Figure 5 It is a schematic diagram of the structure inside the dust blowing component of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure between the crusher and the cleaning component in the present invention;

[0037] Figure 7 It is a schematic diagram of the structure inside the cleaning component of the present invention;

[0038] Figure 8 It is an enlarged view of point A in the present invention;

[0039] Fig. 9It is a schematic diagram of the structure of the roller in the present invention;

[0040] In the figure:

[0041] 1. Crusher; 11. Guide plate;

[0042] 2. Hopper;

[0043] 3. Fan;

[0044] 4. Material collection box;

[0045] 5. Filter plate;

[0046] 6. Cleaning assembly; 61. Housing; 62. Gear rod; 621. Sliding rod; 622. Sliding sleeve; 623. Stress spring; 63. Scraper; 631. Spring rod; 632. Brush plate; 633. Stop block; 64. Half gear; 65. Driving motor A;

[0047] 7. Dust blowing assembly; 71. Housing; 72. Rotating plate; 721. Connecting rod; 73. Tooth disc A; 74. Connecting pipe; 75. Hose; 76. Sprinkler; 77. Connecting plate; 78. Tooth disc B; 79. Driving motor B;

[0048] 8. blanking assembly; 81. blanking plate; 82. connecting shaft; 83. roller; 84. roller; 85. guide block;

[0049] 9. Silo. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Example 1

[0052] See also Figure 1-9 ;

[0053] A crushing device for fertilizer production, comprising a crusher 1 and a hopper 2 installed outside a material port on one side of the crusher 1 surface, and a material receiving box 4 plugged into a socket at the bottom of the crusher 1, a material bin 9 is fixedly provided on the inner wall of the crusher 1, a fan 3 and a filter plate 5 are respectively installed at positions on both sides of the crusher 1 surface corresponding to the surface of the material bin 9, and a top of the material bin 9 is located on both sides of the inner wall of the crusher 1 and is abutted against and connected with a material guide plate 11, and the material guide plate 11 is fixedly connected to the inner wall of the crusher 1.

[0054] In this embodiment: the fertilizer is poured into the crusher 1 through the hopper 2, and is guided toward the center via the guide plate in the crusher 1. The crushing roller in the crusher 1 is controlled by an external control device to operate, so that the fertilizer lumps falling through the guide plate are crushed. The fan 3 is controlled by the external control device to operate, and air flow is sprayed into the crusher 1, so that dust flows toward the filter plate 5 along with the air flow, and is filtered and discharged through the filter plate 5.

[0055] It should be noted that the electrical equipment involved in this product is powered by an external power supply.

[0056] On this basis, a dust blowing assembly 7 is provided to assist in dust blowing;

[0057] The crushing device for fertilizer production also includes a dust blowing assembly 7 installed in the silo 9 and corresponding to the position of the fan 3;

[0058] The dust blowing assembly 7 includes a shell 71 welded to the inner wall of the silo 9 and a turntable 72 rotatably connected to the shell 71. A connecting rod 721 is provided on the outer sliding sleeve of a pin shaft welded on one side of the surface of the turntable 72. A connecting plate 77 is welded on the side of the connecting rod 721 away from the turntable 72, and the surface of the connecting rod 721 is located on one side of the connecting plate 77 and is rotatably connected to the inner wall of the shell 71 through a rotating shaft. A nozzle 76 is fixedly provided on one side of the surface of the connecting plate 77, and the nozzle 76 is slidably connected in an arc groove opened on the surface of the shell 71. A hose 75 is fixedly provided on one side of the surface of the nozzle 76. A flange is connected to a connecting pipe 74 at one end of the hose 75 away from the nozzle 76. An end of the connecting pipe 74 away from the hose 75 passes through the silo 9 and the crusher 1, and the connecting pipe 74 is flange-connected to the air outlet of the fan 3.

[0059] In an optional embodiment: it also includes a driving motor B79 boltedly mounted on one side of the surface of the outer shell 71, the output shaft of the driving motor B79 penetrates the outer shell 71, and the output shaft of the driving motor B79 is fixedly provided with a gear A73, one side of the surface of the gear A73 is meshed with a gear B78, and the gear B78 is fixedly sleeved on the surface of the mounting shaft on one side of the turntable 72.

[0060] In this embodiment: while the fan 3 blows air into the crusher 1 through the nozzle 76, the drive motor B79 is controlled by an external control device. The drive motor B79 can drive the toothed disc B78 to rotate synchronously through the toothed disc A73, so that the toothed disc B78 drives the turntable 72 to rotate. At the same time, the turntable 72 pushes the connecting rod 721 to swing back and forth through the pin shaft, and the connecting rod 721 can drive the nozzle 76 to swing back and forth through the connecting plate 77, thereby increasing the air supply range and facilitating people to perform dust removal operations.

[0061] In an optional embodiment: the surface of the toothed disc B78 has multiple groups of teeth, and the multiple groups of teeth are distributed in a ring shape with equal distances.

[0062] It should be noted that: this design allows the toothed disc A73 to drive the toothed disc B78 to rotate at a fixed time while rotating, and the rotation rate is determined by the rotation speed of the drive motor B79.

[0063] More specifically:

[0064] In combination with the above content: on this basis, it also includes a cleaning component 6 installed on the inner wall of the crusher 1 and located above the filter plate 5;

[0065] The cleaning assembly 6 includes a shell 61 welded to the inner wall of the crusher 1, a drive motor A65 fixedly arranged in the shell 61, and a half gear 64 welded to the end of the output shaft of the drive motor A65, one side of the half gear 64 is meshed with a gear rod 62, the gear rod 62 is slidably connected in the grooves opened on both sides of the surface of the shell 61, and a scraper 63 is welded on the surface of one side of the gear rod 62 extending out of the groove, a T-shaped limit block 633 is welded on the side of the scraper 63 away from the gear rod 62, and the scraper 63 is slidably connected in the T-shaped groove opened on the surface of the filter plate 5 through the limit block 633.

[0066] In this embodiment: the drive motor A65 is controlled by an external control device to work. The drive motor A65 drives the half gear 64 to rotate and pushes the gear rod 62 to move, so that the gear rod 62 pushes the scraper 63 to move along the filter plate 5, thereby cleaning the surface of the filter plate 5.

[0067] It should be noted that the limiting block 633 can limit the tooth rod 62 through the T-slot of the crusher 1, thereby ensuring the smooth movement of the scraper 63.

[0068] In an optional embodiment: a slide rod 621 is welded in a slide groove opened at the position of the gear rod 62 on the inner wall of the shell 61, a slide sleeve 622 is provided on the surface of the slide rod 621, and one side of the slide sleeve 622 extending out of the slide groove is fixedly connected to the surface of the gear rod 62, and a stress spring 623 is wound on one side of the slide sleeve 622 on the surface of the slide rod 621, and the two ends of the stress spring 623 are respectively fixedly connected to the slide sleeve 622 and the shell 61.

[0069] It should be noted that: in combination with the above, when the half gear 64 is separated from the gear rod 62 by rotation, the stress spring 623 is forced to rebound and push the sliding sleeve 622 to drive the gear rod 62 to reset until the half gear 64 is re-engaged with the gear rod 62, which is used to assist people in reciprocating cleaning of the filter plate 5.

[0070] In an optional embodiment: a slot is provided on the surface of the scraper 63 at the position corresponding to the air outlet on the surface of the filter plate 5, a brush plate 632 is inserted into the slot, a spring rod 631 is fixedly provided on one side of the brush plate 632 inserted into the scraper 63, and the end of the spring rod 631 away from the brush plate 632 is fixedly connected to the inner wall of the scraper 63.

[0071] It should be noted that when the scraper 63 moves along the filter plate 5 to clean the filter plate 5, the spring rod 631 rebounds under force and can push the brush plate 632 to insert into the air outlet of the filter plate 5 to clear the air outlet and avoid blockage.

[0072] It should be noted that the brush plate 632 is supported by a flexible material and may also be a brush to avoid movement jamming.

[0073] Going further:

[0074] In combination with the above content: on this basis, it also includes a material discharge assembly 8 installed on the inner wall of the silo 9 and located below the shell 71;

[0075] The unloading assembly 8 includes an unloading plate 81 hinged on one side of the inner wall of the silo 9 and a connecting shaft 82 rotatably connected to the inner wall of the silo 9 and located on one side of the unloading plate 81. A roller 84 is fixedly sleeved on the surface of the connecting shaft 82. The surface of the roller 84 is provided with grooves equidistantly distributed in a ring shape, and a rotating roller 83 is rotatably connected in the groove, and the roller 84 contacts the surface of the unloading plate 81 through the rotating roller 83.

[0076] In an optional embodiment: a plurality of triangular guide blocks 85 are welded at positions on the surface of the blanking plate 81 corresponding to the rotating rollers 83 , and the guide blocks 85 are arranged end to end.

[0077] In this embodiment: In combination with the above, after the crushed fertilizer falls onto the discharge plate 81, the connecting shaft 82 is driven to rotate by an external motor, so that the connecting shaft 82 drives the roller 84 to rotate. At the same time, the roller 84 can intermittently lift the discharge plate 81 through the roller 83, thereby shaking off the fertilizer accumulated on the surface of the discharge plate 81.

[0078] It should be noted that the triangular structure of the guide block 85 can separate the roller 83 from the guide block 85 while generating a height difference, so that the unloading plate 81 is vibrated at the next collision, so as to shake off the fertilizer and facilitate people to carry out unloading operations.

[0079] In combination with the above content: On this basis, the present invention also provides a method for using a crushing device for fertilizer production, including:

[0080] S1. Preliminary preparation: All the power equipment in the product is electrically connected to the external power supply through the line, and the external control device is centrally controlled. At the same time, the connecting shaft 82 is connected to the external motor to provide drive;

[0081] S2, feeding: pour the fertilizer into the crusher 1 through the hopper 2, and guide it to the center through the guide plate in the crusher 1;

[0082] S3, crushing: the crushing roller in the crusher 1 is controlled by an external control device to work, so as to crush the fertilizer agglomerates falling through the guide plate;

[0083] S4, dust blowing: the fan 3 is controlled by an external control device to deliver gas to the nozzle 76 through the connecting pipe 74 and the hose 75, and the gas is ejected through the connecting plate 77, so that the airflow guides the dust in the crusher 1 and is discharged through the filter plate 5;

[0084] S5, cleaning: At the same time, the driving motor A65 is controlled by an external control device to work, and the driving motor A65 drives the half gear 64 to rotate and push the gear rod 62 to move, so that the gear rod 62 pushes the scraper 63 to move along the filter plate 5, thereby cleaning the surface of the filter plate 5;

[0085] S6, discharging: the connecting shaft 82 is driven to rotate by an external motor, so that the connecting shaft 82 drives the roller 84 to rotate, and the roller 84 can intermittently lift the unloading plate 81 through the roller 83, so as to shake off the fertilizer accumulated on the surface of the unloading plate 81;

[0086] S7, collection: the fertilizer after the crushing process falls into the receiving box 4 due to the influence of gravity. At this time, the receiving box 4 is pulled down and the receiving box 4 is pulled out of the crusher 1, so as to take out the fertilizer.

[0087] In an optional embodiment: in S3 , the top of the silo 9 is an inwardly inclined closing structure, and the opening of the silo 9 coincides with the channel formed between the guide plates 11 .

[0088] It should be noted that this design can avoid overflowing and is used to assist people in crushing fertilizers.

[0089] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crushing device for fertilizer production, comprising a crusher (1), a hopper (2) mounted outside a material port on one side of the surface of the crusher (1), and a material receiving box (4) plugged into a socket at the bottom of the crusher (1), a material bin (9) being fixedly provided on the inner wall of the crusher (1), a fan (3) and a filter plate (5) being respectively installed at positions on both sides of the surface of the crusher (1) corresponding to the surface of the material bin (9), and a material guide plate (11) being abutted and connected to both sides of the inner wall of the crusher (1) at the top of the material bin (9), and the material guide plate (11) being fixedly connected to the inner wall of the crusher (1), characterized in that: It also includes a dust blowing assembly (7) installed in the silo (9) and corresponding to the position of the fan (3); The dust blowing assembly (7) comprises a shell (71) welded to the inner wall of the silo (9) and a rotating disk (72) rotatably connected to the shell (71); a pin shaft outer sliding sleeve welded to one side of the surface of the rotating disk (72) is provided with a connecting rod (721); a connecting plate (77) is welded to the side of the connecting rod (721) away from the rotating disk (72); and a surface of the connecting rod (721) located on one side of the connecting plate (77) is rotatably connected to the inner wall of the shell (71) via a rotating shaft; the connecting plate (77) is provided with a connecting rod (721) and a connecting plate (77) is provided on the connecting plate (77). A nozzle (76) is fixedly provided on one side of the surface of the housing (71), and the nozzle (76) is slidably connected in an arc-shaped groove provided on the surface of the housing (71); a hose (75) is fixedly provided on one side of the surface of the nozzle (76); an end of the hose (75) away from the nozzle (76) is flange-connected to a connecting pipe (74); an end of the connecting pipe (74) away from the hose (75) passes through the silo (9) and the crusher (1), and the connecting pipe (74) is flange-connected to an air outlet of the fan (3); It also includes a cleaning assembly (6) installed on the inner wall of the crusher (1) and located above the filter plate (5); The cleaning assembly (6) comprises a shell (61) welded to the inner wall of the crusher (1), a driving motor A (65) fixedly arranged in the shell (61), and a half gear (64) welded to the end of the output shaft of the driving motor A (65), a gear rod (62) meshing on one side of the half gear (64), the gear rod (62) being slidably connected to notches opened on both sides of the surface of the shell (61), and a scraper (63) being welded to the surface of one side of the gear rod (62) extending out of the notch, a T-shaped limit block (633) being welded to the side of the scraper (63) away from the gear rod (62), and the scraper (63) being slidably connected to the T-shaped slot opened on the surface of the filter plate (5) through the limit block (633); A slide rod (621) is welded in a slide groove provided at a position of the inner wall of the housing (61) corresponding to the position of the gear rod (62); a slide sleeve (622) is provided on the surface of the slide rod (621); a side of the slide sleeve (622) extending out of the slide groove is fixedly connected to the surface of the gear rod (62); a stress spring (623) is wound on the surface of the slide rod (621) located on one side of the slide sleeve (622); and two ends of the stress spring (623) are respectively fixedly connected to the slide sleeve (622) and the housing (61); It also includes a material discharge assembly (8) installed on the inner wall of the silo (9) and located below the outer shell (71); The material discharge assembly (8) comprises a material discharge plate (81) hingedly connected to one side of the inner wall of the silo (9) and a connecting shaft (82) rotatably connected to the inner wall of the silo (9) and located on one side of the material discharge plate (81); a roller (84) is fixedly sleeved on the surface of the connecting shaft (82); grooves equidistantly distributed in an annular shape are formed on the surface of the roller (84); a rotating roller (83) is rotatably connected in the groove; and the roller (84) contacts the surface of the material discharge plate (81) through the rotating roller (83).

2. The crushing device for fertilizer production according to claim 1, characterized in that: It also includes a drive motor B (79) bolted to one side of the surface of the housing (71), the output shaft of the drive motor B (79) passing through the housing (71), and the output shaft of the drive motor B (79) is fixedly provided with a toothed disc A (73), one side of the surface of the toothed disc A (73) is meshed with a toothed disc B (78), and the toothed disc B (78) is fixedly sleeved on the surface of the mounting shaft on one side of the rotating disc (72).

3. The crushing device for fertilizer production according to claim 2 is characterized in that: The surface of the toothed disc B (78) has a plurality of groups of teeth, and the plurality of groups of teeth are distributed in an annular shape with equal distances.

4. The crushing device for fertilizer production according to claim 1, characterized in that: A slot is provided on the surface of the scraper (63) at a position corresponding to the air outlet on the surface of the filter plate (5), and a brush plate (632) is inserted into the slot. A spring rod (631) is fixedly provided on one side of the brush plate (632) inserted into the scraper (63), and one end of the spring rod (631) away from the brush plate (632) is fixedly connected to the inner wall of the scraper (63).

5. The crushing device for fertilizer production according to claim 1, characterized in that: A plurality of guide blocks (85) with a triangular structure are welded at positions on the surface of the blanking plate (81) corresponding to the rotating rollers (83), and the guide blocks (85) are arranged end to end.

6. A method for using a crushing device for fertilizer production, using the crushing device for fertilizer production according to any one of claims 1 to 5, characterized in that: include: S1. Preliminary preparation: All the electrical equipment in the product is electrically connected to an external power supply through a line, and is centrally controlled by an external control device. At the same time, the connecting shaft (82) is connected to an external motor to provide drive; S2, feeding: pouring the fertilizer into the crusher (1) through the hopper (2), and guiding it toward the center through the guide plate in the crusher (1); S3, crushing: controlling the crushing rollers in the crusher (1) to operate through an external control device, thereby crushing the fertilizer lumps that fall through the guide plate; S4, dust blowing: controlling the operation of the fan (3) through an external control device, so that the fan (3) delivers gas to the nozzle (76) through the connecting pipe (74) and the hose (75), and sprays the gas through the connecting plate (77), so that the airflow guides the dust in the crusher (1) and is discharged through the filter plate (5); S5, cleaning: at the same time, the driving motor A (65) is controlled to work by an external control device, and the driving motor A (65) drives the half gear (64) to rotate and push the gear rod (62) to move, so that the gear rod (62) pushes the scraper (63) to move along the filter plate (5), thereby cleaning the surface of the filter plate (5); S6, discharging: the connecting shaft (82) is driven to rotate by an external motor, so that the connecting shaft (82) drives the roller (84) to rotate, and the roller (84) can intermittently lift the unloading plate (81) through the roller (83), so as to shake off the fertilizer accumulated on the surface of the unloading plate (81); S7, collection: the fertilizer after the crushing process falls into the receiving box (4) due to the influence of gravity. At this time, the receiving box (4) is pulled down and the receiving box (4) is pulled out of the crusher (1), so that the fertilizer is taken out.

7. The method for using the crushing device for fertilizer production according to claim 6, characterized in that: In S3, the top of the silo (9) is an inwardly inclined closing structure, and the opening of the silo (9) coincides with the channel formed between the guide plates (11).

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