Organic compound fertilizer granulation equipment and use method thereof

Abstract

The invention discloses organic compound fertilizer granulation equipment and a use method thereof, and belongs to the technical field of organic fertilizer processing. Organic compound fertilizer granulation equipment comprises a preparation box, a honeycomb roller and a crushing stirrer, the honeycomb roller is arranged at the uppermost end of an inner cavity of the preparation box, the crushing stirrer is arranged below the honeycomb roller, and a brake device is arranged below the crushing stirrer. Left-right symmetrical screen frame devices are connected to the positions, close to the bottom, of an inner cavity of the preparation box, a screen plate is connected to the screen frame devices, anti-blocking devices are connected to the positions, close to the bottom, of the left side and the right side of the preparation box, and a collecting box is connected to the bottom of the preparation box. According to the fertilizer granulating and screening device, a dredging structure is designed for the screening plate, the scraping plate is designed to clean the surface of the screening plate, and the fineness of fertilizer granulating and screening is further effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer processing, and more specifically, to an organic composite fertilizer granulating device and a use method thereof. Background Art

[0002] Organic compound fertilizer is a kind of fertilizer made by mixing organic fertilizer with inorganic fertilizer or multiple organic fertilizers, which is designed to provide comprehensive and balanced nutrient supply. It combines the advantages of organic fertilizers in terms of long-term effect and improvement of soil structure, and the characteristics of inorganic fertilizers in terms of fast effect and high nutrient content.

[0003] In common organic compound fertilizer granulation equipment, since a sieve plate device is required, the sieve plate is often blocked. The common solution is to dredge the blocked sieve plate. However, since the fertilizer has a certain humidity and viscosity, the fertilizer is easy to stick to the sieve plate during the sieve plate screening process. The traditional solution of only dredging the sieve plate cannot effectively remove the fertilizer on the sieve plate. Based on this, it is necessary to design an organic compound fertilizer granulation equipment to solve this problem. Summary of the invention

[0004] The object of the present invention is to provide an organic compound fertilizer granulating device and a method of using the same to solve the problems raised in the above background technology.

[0005] An organic compound fertilizer granulation device comprises a preparation box, a honeycomb roller and a pulverizing agitator, wherein the honeycomb roller is arranged at the uppermost end of the inner cavity of the preparation box, the pulverizing agitator is arranged below the honeycomb roller, a braking device is arranged below the pulverizing agitator, a left-right symmetrical screen frame device is connected near the bottom of the inner cavity of the preparation box, a screen plate is connected to the screen frame device, anti-blocking devices are connected near the bottom of the left and right sides of the preparation box, and a collecting box is connected to the bottom of the preparation box; Preferably, the screen frame device comprises a frame, a rotating shaft is arranged at the back of the frame, a slide groove is arranged at one side of the frame, an automatic paddle is arranged next to the slide groove, the automatic paddle is fixedly mounted on the upper surface of the frame, a connecting groove is arranged at the frame, the sieve plate is connected in the connecting groove, a scraper is arranged at the tail end of the connecting groove, an electromagnet is arranged inside the scraper, connecting holes are arranged at both sides of the scraper, and the scraper is connected to an inductive limit block through the connecting holes, the inductive limit block is fixedly mounted on the frame, and a pressure sensor is installed on the inductive limit block, and an open hole connecting column is fixedly arranged on the back of the scraper; Preferably, the screen plate includes a plate surface fixedly connected in the connecting groove, a return spring fixedly connected to the tail of the plate surface, the return spring fixedly connected to the innermost end of the connecting groove, a filter strip is provided on the plate surface, and a lever fixedly connected to the plate surface, the lever is located in the slide groove and is on the same horizontal line as the automatic paddle.

[0006] Preferably, the preparation box includes a box body, a feeding port is arranged on the top of the box body, a rectangular groove is opened at the bottom of the box body, strip channels are opened on both sides of the box body, and limiting sliding rods are fixedly arranged on the front and rear surfaces of the box body, the limiting sliding rods are connected to the anti-blocking device, and a limiting telescopic rod is fixedly arranged on the back of the box body.

[0007] Preferably, the braking device includes a braking power supply fixedly installed at the four corners inside the preparation box, the lower end of the braking power supply is connected to a lifting rod, the bottom end of the lifting rod is provided with a hexagonal connecting nail, and a feeding channel is fixedly connected between the four braking power supplies.

[0008] Preferably, the rotating shaft passes through the preparation box and is externally connected to a driving motor, the driving motor is fixedly mounted on the outer surface of the preparation box, a driving gear is connected to the driving motor, the driving gear is connected to the anti-blocking device, and the driving gear is located outside the preparation box, and a battery is arranged on the back of the scraper.

[0009] Preferably, the anti-blocking device includes a block, a strip plug plate is provided on the block, and L-shaped movable arms are fixedly connected on both sides of the block, a bar gear is provided on the upper surface of the long end of the L-shaped movable arm, a driven gear is meshedly connected to the bar gear, the driven gear is movably connected to the front and rear of the preparation box respectively, and the driven gear is meshedly connected to the driving gear, and a strip groove is provided on the inner surface of the long end of the L-shaped movable arm, a free telescopic rod is fixedly connected to the block, and the other end of the free telescopic rod is fixedly connected to the side of the preparation box.

[0010] Preferably, a method for granulating an organic compound fertilizer comprises the following steps: S1. Feeding and crushing: Fertilizer is fed into the preparation box from the feeding port. After being crushed by the honeycomb roller and crushed again by the crushing mixer, the fertilizer will fall into countless particles and fall onto the sieve plate connected to the sieve frame device through the feeding channel; S2. Screening: At this time, the rod of the limited telescopic rod passes through the back of the box and is inserted into the side of the frame to limit and fix the frame, and control the rotation of the automatic paddle. The automatic paddle can regularly paddle the lever to make the screen plate vibrate back and forth, so that the fertilizer particles on the screen plate are continuously filtered and fall into the collection box to achieve particle screening. S3, secondary collection: After the initial screening, larger particles will remain on the sieve plate, and particles will be stuck in the filter strip. At this time, the frame is rotated as a whole by driving the motor, so that the large particles that have not been filtered on the sieve plate fall into the collection box that has been replaced and prepared in advance; S4. Clean the screen plate: When the screen frame device rotates downward 90°, the perforated connecting column faces the lifting rod, and the hexagonal connecting nail is connected to the magnetic perforated connecting column. Then the lifting rod is driven to drive the scraper to move up and down along the front surface of the screen plate to scrape off the residual particles on the surface of the screen plate. At the same time, when the driving motor drives the overall rotation of the frame, the active gear drives the driven gear to rotate, and then drives the strip plug on the L-shaped moving arm connecting block to insert into the strip channel. When the frame rotates to be parallel to the left and right sides, the strip plug just passes through the strip channel and is inserted into the filter strip on the plate surface, so as to clear the filter strip on the screen plate, which effectively further improves the fineness of fertilizer granulation screening.

[0011] Compared with the prior art, the advantages of the present invention are: (1) In the present invention, not only is a dredging structure designed for the sieve plate, but a scraper is also designed to clean the surface of the sieve plate, which effectively further improves the fineness of fertilizer granulation and screening.

[0012] (2) In the present invention, a linkage is designed between the two structures of dredging and cleaning. When the screen frame device rotates downward by 90°, the hole connecting column faces the lifting rod, and the hexagonal connecting nail is connected to the magnetic hole connecting column. Then the lifting rod is driven to drive the scraper to move up and down along the front surface of the screen plate to scrape off the particles remaining on the surface of the screen plate. At the same time, when the driving motor drives the overall rotation of the frame, the driving gear drives the driven gear to rotate, and then drives the strip plug on the L-shaped moving arm connecting block to insert into the strip channel. When the frame rotates to be parallel to the left and right sides, the strip plug just passes through the strip channel and is inserted into the filter strip on the plate surface, thereby achieving dredging of the filter strip on the screen plate.

[0013] (3) In the present invention, the sieve plate is designed to be movable, and the automatic paddle can regularly paddle the lever to make the sieve plate vibrate back and forth, so that the fertilizer particles on the sieve plate are continuously filtered and fall into the collection box, thereby achieving particle screening, and the frame is driven by the motor to rotate as a whole, so that the large particles that are not filtered on the sieve plate fall into the collection box that has been replaced and prepared in advance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention; Figure 2 It is a schematic diagram of the overall front structure of the present invention; Figure 3 It is a schematic diagram of the overall back structure of the present invention; Figure 4 It is a schematic diagram of the overall side structure of the present invention; Figure 5 It is an enlarged schematic diagram of the braking device structure of the present invention; Figure 6 It is an enlarged schematic diagram of the front structure of the screen frame device of the present invention; Figure 7 It is an enlarged schematic diagram of the back structure of the screen frame device of the present invention; Figure 8 It is an enlarged schematic diagram of the sieve plate structure of the present invention; Fig. 9 It is an enlarged schematic diagram of the anti-blocking device structure of the present invention.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Preparation box; 101. Box body; 102. Feeding port; 103. Rectangular slot; 104. Strip channel; 105. Limiting slide bar; 106. Limiting telescopic rod; 2. Honeycomb roller; 3. Crushing agitator; 4. Braking device; 401. Braking power supply; 402. Feeding channel; 403. Lifting rod; 404. Hexagonal connecting nail; 5. Screen frame device; 501. Frame; 502. Connecting slot; 503. Automatic pick; 504. Scraper; 505. Inductive limit block; 506. Drive driving motor; 507, driving gear; 508, rotating shaft; 509, pressure sensor; 5010, battery; 5011, opening connecting column; 5012, slide; 6, sieve plate; 601, plate surface; 602, filter strip; 603, lever; 604, reset spring; 7, anti-blocking device; 701, block; 702, strip plug plate; 703, L-shaped moving arm; 704, strip gear; 705, free telescopic rod; 706, driven gear; 707, strip groove; 8, collection box. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 1 - Fig. 9As shown, an organic compound fertilizer granulation equipment comprises a preparation box 1, a honeycomb roller 2 and a pulverizer 3, wherein the uppermost end of the inner cavity of the preparation box 1 is provided with a honeycomb roller 2, the pulverizer 3 is provided below the honeycomb roller 2, a brake device 4 is provided below the pulverizer 3, a left-right symmetrical screen frame device 5 is connected near the bottom of the inner cavity of the preparation box 1, a screen plate 6 is connected to the screen frame device 5, anti-blocking devices 7 are connected near the bottom of the left and right sides of the preparation box 1, and a collecting box 8 is connected to the bottom of the preparation box 1, wherein the two screen frame devices 5 can be combined and connected, and can also be rotated; refer to Figure 6 and Figure 7 The screen frame device 5 includes a frame 501, a rotating shaft 508 is arranged at the back of the frame 501, a slide groove 5012 is arranged at one side of the frame 501, an automatic paddle 503 is arranged beside the slide groove 5012, and the automatic paddle 503 is fixedly installed on the upper surface of the frame 501, a connecting groove 502 is arranged at the frame 501, the connecting groove 502 is connected to the sieve plate 6, and a scraper 504 is arranged at the tail end of the connecting groove 502, an electromagnet is arranged inside the scraper 504, connecting holes are arranged on both sides of the scraper 504, and the scraper 504 is connected to the induction limit block 505 through the connecting hole, and the induction limit block 505 is fixedly installed on the frame 501, and the induction limit block 505 is fixedly installed on the frame 501. A pressure sensor 509 is installed on the limit block 505, and an open hole connection column 5011 is fixedly arranged on the back of the scraper 504, wherein the scraper 504 is close to the front surface of the sieve plate 6, and a pressure sensor head is arranged in the open hole connection column 5011. When the hexagonal connecting nail 404 is inserted into the open hole connection column 5011 and presses the internal pressure sensor head, and the inductive limit block 505 is normally inserted into the scraper 504, the electromagnet inside the scraper 504 is disconnected, triggering the inductive limit block 505 to contract, the electromagnet is reconnected, and the open hole connection column 5011 is re-magnetized, so that the open hole connection column 5011 and the hexagonal connecting nail 404 are firmly connected; refer to Figure 8 The sieve plate 6 includes a plate surface 601 fixedly connected in the connecting groove 502, a return spring 604 is fixedly connected to the tail of the plate surface 601, and the return spring 604 is fixedly connected to the innermost end of the connecting groove 502. The plate surface 601 is provided with a filter strip 602, and a lever 603 is fixedly connected to the plate surface 601. The lever 603 is located in the slide groove 5012 and is on the same horizontal line as the automatic paddle 503. The automatic paddle 503 is controlled to rotate, and the automatic paddle 503 can regularly paddle the lever 603, so that the sieve plate 6 vibrates back and forth, so that the fertilizer particles on the sieve plate 6 are continuously filtered and fall into the collecting box 8, thereby realizing particle screening.

[0019] refer to Figure 4The preparation box 1 includes a box body 101, a feeding port 102 is arranged on the top of the box body 101, a rectangular groove 103 is opened at the bottom of the box body 101, strip channels 104 are opened on both sides of the box body 101, and limiting slide bars 105 are fixedly arranged on the front and back sides of the box body 101, and the limiting slide bars 105 are connected with the anti-blocking device 7, and a limiting telescopic rod 106 is fixedly arranged on the back of the box body 101, wherein the strip plug plate 702 can pass through the strip channel 104, the limiting slide bar 105 is used to connect the strip groove 707, and the rod body of the limiting telescopic rod 106 passes through the back of the box body 101 and is inserted into the side of the frame 501 to limit and fix the frame 501.

[0020] refer to Figure 5 The braking device 4 includes a braking power supply 401 fixedly installed at the four corners inside the preparation box 1, the lower end of the braking power supply 401 is connected to a lifting rod 403, and the bottom end of the lifting rod 403 is provided with a hexagonal connecting nail 404, and a feeding channel 402 is fixedly connected between the four braking power supplies 401. When the screen frame device 5 rotates downward by 90°, the open hole connecting column 5011 is opposite to the lifting rod 403, and the hexagonal connecting nail 404 is made of iron and can be connected to the magnetic open hole connecting column 5011. Then, the lifting rod 403 is driven to drive the scraper 504 to move up and down along the front surface of the screen plate 6 to scrape off the particles remaining on the surface of the screen plate 6.

[0021] refer to Figure 6 and Figure 7 The rotating shaft 508 passes through the preparation box 1 and is externally connected to a driving motor 506, which is fixedly mounted on the outer surface of the preparation box 1. The driving motor 506 is connected to a driving gear 507, which is connected to an anti-blocking device 7, and the driving gear 507 is located outside the preparation box 1. A battery 5010 is arranged on the back of the scraper 504, wherein the battery 5010 arranged on the back of the scraper 504 is used to provide power for the electromagnet in the scraper 504, and the driving motor 506 can realize the overall rotation of the frame 501, so that the large particles that are not filtered on the sieve plate 6 fall into the collection box 8 that has been replaced and prepared in advance, and after the frame 501 rotates with the sieve plate 6, the filter strip 602 on the sieve plate 6 is facing the strip channel 104, which is convenient for clearing the sieve plate 6 later.

[0022] refer to Fig. 9The anti-blocking device 7 includes a block 701, a strip plug plate 702 is provided on the block 701, and L-shaped moving arms 703 are fixedly connected on both sides of the block 701, and a strip gear 704 is provided on the upper surface of the long end of the L-shaped moving arm 703, and a driven gear 706 is meshedly connected to the strip gear 704, and the driven gear 706 is movably connected to the front and rear of the preparation box 1, and the driven gear 706 is meshedly connected to the driving gear 507, and a strip groove 707 is provided on the inner surface of the long end of the L-shaped moving arm 703, and a free telescopic rod 705 is fixedly connected to the block 701, and the free telescopic rod The other end of 705 is fixedly connected to the side of the preparation box 1, wherein when the driving motor 506 drives the overall rotation of the frame 501, the driving gear 507 drives the driven gear 706 to rotate, and then drives the L-shaped moving arm 703 to connect the strip plug plate 702 on the block 701 to insert into the strip channel 104, and when the frame 501 rotates to be parallel to the left and right sides, the strip plug plate 702 just passes through the strip channel 104 and is inserted into the filter strip 602 on the plate surface 601, thereby clearing the filter strip 602 on the screen plate 6, and effectively further improving the fineness of the fertilizer granulation screening.

[0023] A method for granulating an organic compound fertilizer comprises the following steps: S1. Feeding and crushing: Fertilizer is fed into the box body 101 of the preparation box 1 from the feeding port 102. After being crushed by the honeycomb roller 2 and crushed again by the crushing and stirring device 3, the fertilizer will fall into countless particles and fall onto the sieve plate 6 connected to the sieve frame device 5 through the feeding channel 402; S2, screening: At this time, the rod body of the limiting telescopic rod 106 penetrates the back of the box 101 and is inserted into the side of the frame 501, the frame 501 is fixed and the automatic paddle 503 is controlled to rotate. The automatic paddle 503 can regularly paddle the lever 603, so that the sieve plate 6 vibrates back and forth, so that the fertilizer particles on the sieve plate 6 are continuously filtered and fall into the collection box 8, so that the particle screening is realized. S3, secondary collection: After the initial screening, larger particles will remain on the sieve plate 6, and particles will be stuck in the filter strip 602. At this time, the frame 501 is rotated as a whole by driving the motor 506, so that the large particles that have not been filtered on the sieve plate 6 fall into the collection box 8 that has been replaced and prepared in advance; S4. Cleaning the sieve plate: When the sieve frame device 5 rotates downward by 90°, the perforated connecting column 5011 faces the lifting rod 403, and the hexagonal connecting nail 404 is connected to the magnetic perforated connecting column 5011. Then the lifting rod 403 is driven to drive the scraper 504 to move up and down along the front surface of the sieve plate 6 to scrape off the particles remaining on the surface of the sieve plate 6. At the same time, when the driving motor 506 drives the overall rotation of the frame 501, the driving gear 507 drives the driven gear 706 to rotate, and then drives the L-shaped moving arm 703 to connect the strip plug 702 on the block 701 to insert into the strip channel 104. When the frame 501 rotates to be parallel to the left and right sides, the strip plug 702 just passes through the strip channel 104 and is inserted into the filter strip 602 on the plate surface 601, thereby clearing the filter strip 602 on the sieve plate 6, effectively further improving the fineness of fertilizer granulation screening.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An organic compound fertilizer granulation device, comprising a preparation box (1), a honeycomb roller (2) and a crushing stirrer (3), characterized in that: The honeycomb roller (2) is arranged at the top of the inner cavity of the preparation box (1), a crushing and stirring device (3) is arranged below the honeycomb roller (2), a braking device (4) is arranged below the crushing and stirring device (3), a left-right symmetrical screen frame device (5) is connected near the bottom of the inner cavity of the preparation box (1), a screen plate (6) is connected to the screen frame device (5), anti-blocking devices (7) are connected near the bottom of the left and right sides of the preparation box (1), and a collecting box (8) is connected to the bottom of the preparation box (1); The screen frame device (5) comprises a frame (501), a rotating shaft (508) is arranged on the back of the frame (501), a slide groove (5012) is arranged on one side of the frame (501), an automatic paddle (503) is arranged next to the slide groove (5012), the automatic paddle (503) is fixedly mounted on the upper surface of the frame (501), the frame (501) is provided with a connecting groove (502), the connecting groove (502) is connected to the screen plate (6), and the connecting groove (502) is provided with a rotating shaft (508) on the back of the frame (501), a sliding groove (5012) is arranged on one side of the frame (501), an automatic paddle (503) is fixedly mounted on the upper surface of the frame (501), and the connecting groove (502) is connected to the screen plate (6) 502) is provided with a scraper (504) at the rear end, an electromagnet is provided inside the scraper (504), connection holes are provided on both sides of the scraper (504), and the scraper (504) is connected to an inductive limit block (505) through the connection holes, the inductive limit block (505) is fixedly mounted on the frame (501), and a pressure sensor (509) is mounted on the inductive limit block (505), and an open hole connection column (5011) is fixedly provided on the back of the scraper (504); The sieve plate (6) comprises a plate surface (601) fixedly connected in the connecting groove (502); a return spring (604) is fixedly connected to the tail of the plate surface (601); the return spring (604) is fixedly connected to the innermost end of the connecting groove (502); a filter strip (602) is provided on the plate surface (601); and a lever (603) is fixedly connected to the plate surface (601); the lever (603) is located in the sliding groove (5012) and is on the same horizontal line as the automatic lever (503).

2. An organic compound fertilizer granulation equipment according to claim 1, characterized in that: The preparation box (1) comprises a box body (101), a feeding port (102) is arranged on the top of the box body (101), a rectangular groove (103) is opened on the bottom of the box body (101), strip-shaped channels (104) are opened on both sides of the box body (101), and limit sliding rods (105) are fixedly arranged on the front and rear surfaces of the box body (101), the limit sliding rods (105) are connected to the anti-blocking device (7), and a limit telescopic rod (106) is fixedly arranged on the back of the box body (101).

3. The organic compound fertilizer granulation equipment according to claim 1, characterized in that: The braking device (4) comprises a braking power supply (401) fixedly mounted at four corners inside the preparation box (1); a lifting rod (403) is connected to the lower end of the braking power supply (401); a hexagonal connecting nail (404) is provided at the bottom end of the lifting rod (403); and a material discharge channel (402) is fixedly connected between the four braking power supplies (401).

4. The organic compound fertilizer granulation equipment according to claim 1, characterized in that: The rotating shaft (508) passes through the preparation box (1) and is externally connected to a driving motor (506); the driving motor (506) is fixedly mounted on the outer surface of the preparation box (1); a driving gear (507) is connected to the driving motor (506); the driving gear (507) is connected to the anti-blocking device (7); and the driving gear (507) is located outside the preparation box (1); and a battery (5010) is arranged on the back of the scraper (504).

5. The organic compound fertilizer granulation equipment according to claim 4, characterized in that: The anti-blocking device (7) comprises a block (701), a strip plug plate (702) is arranged on the block (701), and L-shaped movable arms (703) are fixedly connected to both sides of the block (701), a strip gear (704) is arranged on the upper surface of the long end of the L-shaped movable arm (703), a driven gear (706) is meshedly connected to the strip gear (704), the driven gear (706) is movably connected to the front and rear of the preparation box (1), and the driven gear (706) is meshedly connected to the driving gear (507), and a strip groove (707) is opened on the inner surface of the long end of the L-shaped movable arm (703), a free telescopic rod (705) is fixedly connected to the block (701), and the other end of the free telescopic rod (705) is fixedly connected to the side of the preparation box (1).

6. An organic compound fertilizer granulation method, which relates to an organic compound fertilizer granulation device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, feeding and crushing: Fertilizer is fed into the box body (101) of the preparation box (1) from the feeding port (102), and after being crushed by the honeycomb roller (2) and crushed again by the crushing and stirring device (3), the fertilizer becomes numerous particles and falls, and then passes through the feeding channel (402) and falls onto the sieve plate (6) connected to the sieve frame device (5); S2. Screening: At this time, the rod body of the limiting telescopic rod (106) penetrates the back of the box body (101) and is inserted into the side of the frame (501), so as to limit and fix the frame (501), control the automatic paddle (503) to rotate, and the automatic paddle (503) can regularly paddle the lever (603), so that the sieve plate (6) vibrates back and forth, so that the fertilizer particles on the sieve plate (6) are continuously filtered and fall into the collection box (8), thereby achieving particle screening. S3, secondary collection: After the initial screening, relatively large particles will remain on the sieve plate (6), and particles will be stuck in the filter strip (602). At this time, the frame (501) is rotated as a whole by driving the motor (506), so that the large particles that have not been filtered on the sieve plate (6) fall into the collection box (8) that has been replaced and prepared in advance; S4. Cleaning the sieve plate: When the sieve frame device (5) is rotated downward by 90°, the hole connecting column (5011) faces the lifting rod (403), and the hexagonal connecting nail (404) is connected to the hole connecting column (5011) with a magnet. Then, the lifting rod (403) is driven to drive the scraper (504) to move up and down along the front surface of the sieve plate (6) to scrape off the particles remaining on the surface of the sieve plate (6). At the same time, when the driving motor (506) drives the frame (501) to rotate as a whole, the driving gear (507) ) drives the driven gear (706) to rotate, which in turn drives the L-shaped moving arm (703) to connect the strip-shaped plug plate (702) on the block (701) to be inserted into the strip-shaped channel (104). When the frame (501) rotates to be parallel to the left and right side surfaces, the strip-shaped plug plate (702) just passes through the strip-shaped channel (104) and is inserted into the filter strip (602) on the plate surface (601), thereby clearing the filter strip (602) on the screen plate (6), thereby effectively further improving the fineness of the fertilizer granulation screening.

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