An effective dustproof conveying device for production of phosphate compound fertilizer

Abstract

The application discloses an effective dustproof conveying device for phosphate compound fertilizer production and belongs to the technical field of fertilizer production and transportation. A feeding pipe is arranged at the front end of the drying tower, a driving motor is connected with the conveying belt, a transmission box is fixedly connected with the tail end of the belt surface of the conveying belt, limiting devices are connected with the left and right ends of the transmission box, dustproof boxes are connected with the inner cavities of the transmission box, linkage devices are connected with the upper surfaces of the transmission box, the dustproof boxes comprise box bodies, dust collecting circular grooves are formed in the upper surfaces of the box bodies and the front ends of the two corners, and dust collecting devices are arranged in the dust collecting circular grooves. In the aspect of transportation, the phosphate compound fertilizer is transported through the conveying belt and the transmission box fixedly connected with the tail end of the conveying belt, the transmission box and the dustproof boxes matched with the transmission box and the linkage devices can guarantee that a large amount of dust and ash is not dispersed when the phosphate compound fertilizer is transported, and the dust and ash of the phosphate compound fertilizer put into the dustproof boxes is collected and treated.

Description

Technical Field

[0001] This invention relates to the field of fertilizer production and transportation technology, and more specifically, to an effective dust-proof conveying device for the production of phosphate compound fertilizers. Background Technology

[0002] After the phosphate compound fertilizer is prepared, it will be dried in a drying tower and then placed on a conveyor to be transported to the weighing and packaging line. The phosphate compound fertilizer after drying in the drying tower is in solid powder form. During the transportation process, a large amount of powder dust is easily generated, which can easily pollute the air. Although protective boxes can be added to prevent the powder dust from spreading into the passenger air over a large area, this powder dust is still not collected and treated. Long-term adhesion to the conveyor and dust box will also affect the overall operation of the conveyor. Summary of the Invention

[0003] The purpose of this invention is to provide an effective dust-proof conveying device for the production of phosphate compound fertilizers, so as to solve the problems mentioned in the background art.

[0004] An effective dust-proof conveying device for phosphate compound fertilizer production includes a drying tower and a conveyor belt. A conveying pipe is installed at the front end of the drying tower. The conveyor belt is connected to a drive motor, and a transfer box is fixedly connected to the tail end of the conveyor belt. Limiting devices are connected to both ends of the transfer box. A dustproof box is connected to the inner cavity of the transfer box, and a linkage device is connected to the upper surface of the transfer box. The dustproof box includes a box body, with dust collection grooves formed at the two front corners of the upper surface of the box body. A rectangular groove is formed directly opposite the dust collection grooves to the inner cavity of the box body. A dust collection device is installed inside the dust collection grooves, and the dust collection device includes a rotating motor. A triangular impeller is connected to the end motor shaft. The linkage device includes a connecting cover. Electric lifting rods are provided at the four corners of the upper surface of the connecting cover. Fixed collars are fixedly connected to the two electric lifting rods located at the front end of the lower surface of the connecting cover. A moving rod is extended from the outer edge of the fixed collar. The moving rod passes through the transmission box, and a dust cleaning scraper is fixedly connected to the bottom end of the moving rod. A triangular groove is opened in the center of the dust cleaning scraper. When the dust cleaning scraper moves, the triangular impeller can just pass through the triangular groove of the dust cleaning scraper. In the non-working state, the electric lifting rod is in the retracted state, and the dust cleaning scraper is located directly below the triangular impeller.

[0005] Preferably, the transmission box includes a box body fixedly connected to the conveyor belt, a refrigeration unit installed on the back of the box body, a limit hole on each of the left and right sides of the box body, a limit device connected to one of the limit holes, limit through holes at the two front corners of the upper surface of the box body, the limit through holes connected to the moving rod, an inner cavity opened from the front of the box body, and a box body movably connected inside the inner cavity, a connecting hole opened on the rear wall of the inner cavity, the connecting hole connected to the refrigeration unit through a wire, and the connecting hole connected to the dustproof box, an irregular groove opened at the connection between the upper end of the front of the box body and the inner cavity, and a square groove opened at the connection between the lower end of the front of the box body and the inner cavity, a telescopic tube fixedly connected to the upper surface of the box body, the lower end of the telescopic tube penetrating the upper surface of the box body and connecting to the inner cavity of the box body, a connecting cover fixedly connected to the upper end of the telescopic tube, and a dust removal scraper connected to the inner wall of the upper tube body.

[0006] Preferably, the limiting device includes a servo motor and a slide block fixedly connected to the left and right sides of the housing. A spur gear is fixedly connected to the upper end of the servo motor, and a fixing block is connected to the upper end of the spur gear. The fixing blocks are respectively fixedly connected to the left and right sides of the housing. The spur gear is meshed with a rack. A movable slide rod is provided on the smooth back of the rack. The movable slide rod is movably connected to the slide block, and the rack is connected in the limiting hole.

[0007] Preferably, the box body has a circular cavity, a cooling pipe is provided on the bottom surface of the circular cavity, and connecting grooves are provided on the left and right ends of the cavity opening. The box body is provided with a connecting plug, which is connected to the cooling pipe through a wire. The bottom end of the dust collection groove passes through the box body and is threaded with a hollow threaded cap. A collection box is connected inside the circular cavity of the box body. The collection pot has a vent hole. When the collection box is connected in the circular cavity of the box body, the vent hole is directly opposite the rectangular groove. Limiting holes are provided on the left and right sides of the box body.

[0008] Preferably, the electric lifting rod is fixedly installed at the four corners of the upper surface of the transmission box, the radius of the dust cleaning scraper is the same as the radius of the dust collection groove, and the dust cleaning scraper has a notch in its body. When the dust box is pulled out from the inner cavity of the box, the motor shaft of the rotating motor can pass through the notch in the dust cleaning scraper without contacting the dust cleaning scraper.

[0009] Preferably, the rotating motor is connected to a fixed frame, which is fixedly connected to the two front corners of the upper surface of the box body. An infrared transmitter is connected to the periphery of the rotating motor body. An infrared receiving hole is opened on the upper surface of the triangular impeller. A sensor chip is installed inside the triangular impeller, and a signal indicator light is connected to the triangular impeller through the sensor chip.

[0010] Compared with the prior art, the advantages of this invention are: (1) In this invention, the designed transmission box and the dustproof box and linkage device matched with the transmission box can ensure that a large amount of dust will not be generated during the feeding and transportation of phosphate compound fertilizer, and the dust collection device connected to the dustproof box collects and treats the dust of phosphate compound fertilizer put into the dustproof box.

[0011] (2) In this invention, when a single transport is completed, the electric lifting rod is used to drive the dust removal scraper to move and scrape off the dust attached to the triangular impeller. Finally, the dust is collected into the hollow thread cap. Then the hollow thread cap is removed and the dust in the hollow thread cap is cleaned. Thus, a series of collection, transfer and cleaning are completed.

[0012] (3) In this invention, when the collection box is connected to the box cavity, the connecting plug is inserted into the connecting hole. At this time, the refrigeration machine is started and the refrigeration pipe works to control and reduce the temperature of the box cavity. This not only prevents the phosphate compound fertilizer from sticking together, but also reduces the dispersion of dust by reducing molecular thermal motion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention from the left side view; Figure 2 This is an enlarged schematic diagram of the structure of the dustproof box in the transmission box state of the present invention; Figure 3 This is an enlarged schematic diagram of the rear structure of the transmission box of the present invention; Figure 4 This is an enlarged schematic diagram of the front structure of the transmission box of the present invention; Figure 5 This is an enlarged schematic diagram of the limiting device structure of the present invention; Figure 6 This is an enlarged schematic diagram of the dustproof box structure of the present invention; Figure 7 This is an enlarged schematic diagram of the linkage device structure of the present invention; Figure 8 This is an enlarged schematic diagram of the dust collection device structure of the present invention.

[0014] Explanation of the numbers in the diagram: 1. Drying tower; 2. Conveying pipe; 3. Conveyor belt; 4. Transfer box; 401. Box body; 402. Refrigeration unit; 403. Limiting hole one; 404. Limiting through hole; 405. Connecting hole; 406. Irregular groove; 407. Square groove; 408. Telescopic pipe; 409. Dust removal scraper ring; 5. Limiting device; 501. Servo motor; 502. Spur gear; 503. Fixing block; 504. Gear rack; 505. Moving slide bar; 506. Slide block; 6. Dustproof box; 601. Box body; 602. Refrigeration unit. 603. Pipe; 604. Connecting plug; 605. Dust collection round trough; 606. Rectangular trough; 607. Connecting trough; 608. Collection box; 609. Ventilation vent; 6010. Limiting hole two; 6010. Hollow threaded cap; 7. Linkage device; 701. Connecting cover; 702. Electric lifting rod; 703. Fixing collar; 704. Moving rod; 705. Dust cleaning scraper; 8. Dust collection device; 801. Rotating motor; 802. Infrared transmitter; 803. Fixing frame; 804. Triangular impeller; 805. Infrared receiving hole; 9. Drive motor. Detailed Implementation

[0015] Example: Please refer to Figure 1 - Figure 8An effective dust-proof conveying device for phosphate compound fertilizer production includes a drying tower 1 and a conveyor belt 3. A conveying pipe 2 is installed at the front end of the drying tower 1. The conveyor belt 3 is connected to a drive motor 9, and a transfer box 4 is fixedly connected to the tail end of the conveyor belt 3. Limiting devices 5 are connected to both ends of the transfer box 4. A dustproof box 6 is connected to the inner cavity of the transfer box 4, and a linkage device 7 is connected to the upper surface of the transfer box 4. The dustproof box 6 includes a box body 601, and dust collection grooves 604 are formed at the two front corners of the upper surface of the box body 601. A rectangular groove 605 is formed directly opposite the inner cavity of the box body 601. A dust collection device 8 is installed inside the dust collection groove 604. The dust collection device 8 includes a rotating motor 801. A triangular impeller 804 is connected to the lower end of the rotating motor 801 motor shaft. The linkage device 7 includes a connecting cover 701. Electric lifting rods 702 are set at the four corners of the upper surface of the connecting cover 701. Fixed collars 703 are fixedly connected to the two electric lifting rods 702 located at the front end of the lower surface of the connecting cover 701. The fixed collars 703 are located outside the ring. A movable rod 704 is connected to the conveyor box 4, and a cleaning scraper 705 is fixedly connected to the bottom end of the movable rod 704. A triangular groove is formed in the center of the cleaning scraper 705. When the cleaning scraper 705 moves, the triangular impeller 804 can just pass through the triangular groove of the cleaning scraper 705. In the non-working state, the electric lifting rod 702 is in a retracted state, and the cleaning scraper 705 is located directly below the triangular impeller 804. In terms of transportation and conveying, this invention uses a conveyor belt 3 and its fixed tail end... The connected transfer box 4 transports phosphate compound fertilizer. The designed transfer box 4, along with the dustproof box 6 and linkage device 7, ensures that a large amount of dust will not be generated during the feeding and transportation of phosphate compound fertilizer. On the other hand, the designed dust collection device 8 collects and treats the dust from the phosphate compound fertilizer fed into the dustproof box 6. When a single transport is completed, the electric lifting rod 702 drives the dust removal scraper 705 to move, scraping off the dust attached to the triangular impeller 804, and finally collecting the dust into the hollow threaded cap 6010.

[0016] Please see Figure 3 and Figure 4The transmission box 4 includes a box body 401 fixedly connected to the conveyor belt 3. A refrigeration unit 402 is installed on the back of the box body 401. Limiting holes 403 are opened on the left and right sides of the box body 401, and limiting devices 5 are connected to the limiting holes 403. Limiting through holes 404 are opened at the two corners of the front end of the upper surface of the box body 401, and moving rods 704 are connected to the limiting through holes 404. An inner cavity is opened from the front of the box body 401, and a box body 601 is movably connected inside the inner cavity. A connecting hole 405 is opened on the rear wall of the inner cavity of the box body 401. The connecting hole 405 is connected to the refrigeration unit 402 through a wire, and the connecting hole 405 is connected to the dustproof box 6. An irregular groove 406 is opened at the connection between the upper end of the front of the box body 401 and the inner cavity, and a square groove 407 is opened at the connection between the lower end of the front of the box body 401 and the inner cavity. The upper surface of the box body 401 A telescopic pipe 408 is fixedly connected. The lower end of the telescopic pipe 408 passes through the upper surface of the box 401 and connects to the inner cavity of the box 401. A connecting cover 701 is fixedly connected to the upper opening of the telescopic pipe 408, and a dust removal scraper 409 is connected to the inner wall of the upper pipe body of the telescopic pipe 408. The upper and lower surfaces of the connecting cover 701 are circular through openings, and the diameter of the circular through opening is one centimeter larger than the outer diameter of the opening of the conveying pipe 2. The radius of the dust removal scraper 409 is the same as the inner diameter of the opening of the conveying pipe 2, and the height of the dust removal scraper 409 is the same as the height of the connecting cover 701. When the connecting cover 701, the telescopic pipe 408, and the dust removal scraper 409 rise under the action of the electric lifting rod 702, the opening of the conveying pipe 2 is inserted into the connecting cover 701. At this time, the dust removal scraper 409 cleans the phosphate compound fertilizer dust attached to the inner wall of the opening of the conveying pipe 2, and performs the first step of cleaning.

[0017] Please see Figure 2 and Figure 5 The limiting device 5 includes a servo motor 501 and a sliding block 506 fixedly connected to the left and right sides of the housing 401. A spur gear 502 is fixedly connected to the upper end of the servo motor 501, and a fixing block 503 is connected to the upper end of the spur gear 502. The fixing blocks 503 are fixedly connected to the left and right sides of the housing 401 respectively. The spur gear 502 is meshed with a rack 504. A movable slide rod 505 is provided on the smooth back of the rack 504. The movable slide rod 505 is movably connected to the sliding block 506, and the rack 504 is connected in the limiting hole 403. When the collection and transfer of phosphate compound fertilizer begins, the dust box 6 is connected into the inner cavity of the transfer box 4. At this time, the servo motor 501 is started, and the servo motor 501 drives the spur gear 502 to rotate, thereby driving the rack 504 meshed with the spur gear 502 to pass through the limiting hole 403 and finally insert into the limiting hole 609, thus completing the limiting and fixing of the dust box 6.

[0018] Please see Figure 6 and Figure 7The box body 601 has a circular cavity, and a cooling pipe 602 is provided on the bottom surface of the circular cavity. Connecting grooves 606 are provided on the left and right ends of the cavity opening. A connecting plug 603 is provided in the box body 601, and the connecting plug 603 is connected to the cooling pipe 602 via a wire. A dust collection groove 604 penetrates the bottom of the box body 601 and is threaded with a hollow threaded cap 6010. A collection box 607 is connected inside the circular cavity of the box body 601. The collection box 607 has a vent hole 608. When the collection box 607 is connected to the circular cavity of the box body 601, the vent hole 608 is aligned with the rectangular groove 605. Limiting holes 609 are provided on the left and right sides of the box body 601. The opening of the collection box 607 is flush with the upper surface of the box body 601, and the limiting hole 609... Position hole 2 609 is directly opposite to limit hole 1 403. When collection box 607 is connected to the cavity of box body 601, connector plug 603 is inserted into connection hole 405. At this time, refrigeration unit 402 is started and refrigeration pipe 602 works to control and reduce the temperature of the cavity of box body 601. This not only prevents phosphate compound fertilizer from sticking together, but also reduces the dispersion of dust by reducing molecular thermal motion. Box body 601 has a movable handle on its front surface, and collection box 607 has an ear handle. When collection box 607 is connected to the cavity of box body 601, the ear handle of collection box 607 is located in connection groove 606. Hollow threaded cap 6010 can collect the falling dust when cleaning scraper 705 moves to scrape off the dust attached to triangular impeller 804, and it is detachable.

[0019] Please see Figure 6 and Figure 7 The electric lifting rod 702 is fixedly installed at the four corners of the upper surface of the transmission box 4. The radius of the dust removal scraper 705 is the same as the radius of the dust collection groove 604, and the dust removal scraper 705 has a notch. When the dust box 6 is pulled out from the inner cavity of the box 401, the motor shaft of the rotating motor 801 can pass through the notch of the dust removal scraper 705 without contacting the dust removal scraper 705. When the transmission box 4 carries the phosphate compound fertilizer to the front end of the conveyor belt 3, the electric lifting rod 702 is used to lift the connecting cover 701. At this time, the moving rod 704 moves along the connecting hole 405, and the dust removal scraper ring 409 moves up along the triangular impeller 804 to scrape off the dust attached to the triangular impeller 804. At this time, the dust removal scraper 705 is just located at the motor shaft of the rotating motor 801. Then, the dust box 6 is pulled out, the phosphate compound fertilizer in the collection box 607 is transferred and collected, and the hollow threaded cap 6010 is removed to collect the dust.

[0020] Please see Figure 2 , Figure 6 and Figure 8The rotating motor 801 is connected to a fixed frame 803, which is fixedly connected to the two front corners of the upper surface of the box 601. An infrared transmitter 802 is connected to the outer periphery of the rotating motor 801. An infrared receiving hole 805 is opened on the upper surface of the triangular impeller 804. A sensor chip is installed inside the triangular impeller 804, and a signal indicator light is connected to the triangular impeller 804 through the sensor chip. The rotating motor 801 drives the triangular impeller 804 to rotate and collect dust. The dust enters the dust collection groove 604 through the vent hole 608 and the rectangular groove 605. Then, the triangular impeller 804 is stopped and the infrared transmitter 802 is turned on. When the signal indicator light is lit, that is, the infrared receiving hole 805 is facing the infrared transmitter 802, the electric lifting rod 702 is activated, and the triangular impeller 804 can just pass through the triangular groove of the dust cleaning scraper ring 409.

[0021] The specific working principle of this invention is as follows: First, before transportation, the transmission box 4 is located at the tail end of the conveyor belt 3. At this time, the dust box 6 is inside the transmission box 4. At this time, the servo motor 501 is started, and the servo motor 501 drives the spur gear 502 to rotate, thereby driving the rack tooth 504 connected to the spur gear 502 to pass through the limiting hole 1 403 and finally insert into the limiting hole 2 609 to complete the limiting and fixing of the dust box 6. Then, when the connecting cover 701, the telescopic tube 408 and the dust cleaning scraper ring 409 rise under the action of the electric lifting rod 702, the opening of the conveying pipe 2 is inserted into the connecting cover 701. At this time, the dust cleaning scraper ring 409 cleans the phosphate compound fertilizer dust attached to the inner wall of the conveying pipe 2 along the inner wall of the opening, and performs the first step of cleaning. After that, the phosphate compound fertilizer prepared in the drying tower 1 is put into the transmission box 4 along the telescopic tube 408. When the collection box 607 is connected to the cavity of the box body 601, the connector 603 is inserted into the connector hole 405. At this time, the refrigeration unit 402 is started and the refrigeration pipe 602 works to control and reduce the temperature of the cavity of the box body 601. Then the conveyor belt 3 carries the transfer box 4 to its front end. During the movement, the rotating motor 801 drives the triangular impeller 804 to rotate and collect dust. The dust enters the dust collection groove 604 through the ventilation hole 608 and the rectangular groove 605. Then, the triangular impeller 804 is stopped and the infrared transmitter 802 is turned on. When the signal indicator light is on, that is, the infrared receiver hole 805 is facing the infrared transmitter 802, the electric lifting rod 702 is started to raise the connecting cover 701. At this time, the moving rod 704 moves along the connecting hole 405, and the dust cleaning scraper ring 409 moves up along the triangular impeller 804 to scrape off the dust attached to the triangular impeller 804. At this time, the dust cleaning scraper 705 is just located at the motor shaft of the rotating motor 801. Then, the dustproof box 6 is pulled out to transfer and collect the phosphate compound fertilizer in the collection box 607, and the hollow threaded cap 6010 is removed to collect the dust.

[0022] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An effective dustproof conveying device for phosphate compound fertilizer production, comprising a drying tower (1) and a conveyor belt (3), characterized in that: The drying tower (1) is equipped with a conveying pipe (2) at the front end. The conveyor belt (3) is connected to a drive motor (9). A transmission box (4) is fixedly connected to the tail end of the upper surface of the conveyor belt (3). Limiting devices (5) are connected to the left and right ends of the transmission box (4). A dustproof box (6) is connected to the inner cavity of the transmission box (4). A linkage device (7) is connected to the upper surface of the transmission box (4). The dustproof box (6) includes a box body (601). Dust collection grooves (604) are opened at the two corners of the front end of the upper surface of the box body (601). A rectangular groove (605) is opened opposite the inner cavity of the box body (601) to the dust collection groove (604). A dust collection device (8) is installed in the dust collection groove (604). The dust collection device (8) includes a rotating motor (801). A triangular impeller (804) is connected to the lower motor shaft of the rotating motor (801). The linkage device (7) is connected to the upper surface of the box body (601). The device (7) includes a connecting cover (701). Electric lifting rods (702) are provided at the four corners of the upper surface of the connecting cover (701). Fixed collars (703) are fixedly connected to the two electric lifting rods (702) located at the front end of the lower surface of the connecting cover (701). A moving rod (704) is connected to the outer edge of the fixed collar (703). The moving rod (704) passes through the transmission box (4). A dust cleaning scraper (705) is fixedly connected to the bottom end of the moving rod (704). A triangular groove is provided in the center of the dust cleaning scraper (705). When the dust cleaning scraper (705) moves, the triangular impeller (804) can just pass through the triangular groove of the dust cleaning scraper (705). When not in operation, the electric lifting rod (702) is in a retracted state, and the dust cleaning scraper (705) is located directly below the triangular impeller (804).

2. The dustproof conveying device for the production of phosphate compound fertilizer according to claim 1, characterized in that: The transmission box (4) includes a box body (401) fixedly connected to the conveyor belt (3). A refrigerator (402) is installed on the back of the box body (401). Limiting holes (403) are opened on the left and right sides of the box body (401). A limiting device (5) is connected to the limiting hole (403). Limiting through holes (404) are opened at the two corners of the front end of the upper surface of the box body (401). The limiting through holes (404) are connected to the moving rod (704). The box body (401) has an inner cavity from the front. The box body (601) is movably connected to the box body (601) inside the inner cavity. A connecting hole (405) is opened on the rear wall of the inner cavity of the box body (401). 05) The refrigerator (402) is connected by a wire, and the connection hole (405) is connected to the dust box (6). An irregular groove (406) is opened at the connection between the upper front end of the box (401) and the inner cavity, and a square groove (407) is opened at the connection between the lower front end of the box (401) and the inner cavity. A telescopic tube (408) is fixedly connected to the upper surface of the box (401). The lower end of the telescopic tube (408) penetrates the upper surface of the box (401) and is connected to the inner cavity of the box (401). The upper opening of the telescopic tube (408) is fixedly connected to the connecting cover (701), and a dust cleaning scraper (409) is connected to the inner wall of the upper tube of the telescopic tube (408).

3. The dustproof conveying device for the production of phosphate compound fertilizer according to claim 2, characterized in that: The limiting device (5) includes a servo motor (501) and a slide block (506) fixedly connected to the left and right sides of the housing (401). A spur gear (502) is fixedly connected to the upper end of the servo motor (501). A fixing block (503) is connected to the upper end of the spur gear (502). The fixing block (503) is fixedly connected to the left and right sides of the housing (401) respectively. The spur gear (502) is meshed with a rack tooth (504). A movable slide rod (505) is provided on the smooth back of the rack tooth (504). The movable slide rod (505) is movably connected to the slide block (506). The rack tooth (504) is connected in the limiting hole (403).

4. The dustproof conveying device for the production of phosphate compound fertilizer according to claim 1, characterized in that: The box body (601) has a circular cavity. A cooling pipe (602) is provided on the bottom surface of the circular cavity of the box body (601). A connecting groove (606) is provided on the left and right ends of the opening of the circular cavity of the box body (601). A connecting plug (603) is provided on the box body (601). The connecting plug (603) is connected to the cooling pipe (602) through a wire. The bottom end of the dust collection groove (604) penetrates the box body (601) and is threaded with a hollow thread cap (6010). A collection box (607) is connected inside the circular cavity of the box body (601). The collection box (607) has a vent hole (608). When the collection box (607) is connected in the circular cavity of the box body (601), the vent hole (608) is directly opposite the rectangular groove (605). Limiting holes (609) are provided on the left and right sides of the box body (601).

5. The dustproof conveying device for the production of phosphate compound fertilizer according to claim 1, characterized in that: The electric lifting rod (702) is fixedly installed at the four corners of the upper surface of the transmission box (4). The radius of the dust removal scraper (705) is the same as the radius of the dust collection groove (604). The dust removal scraper (705) has a notch in its body. When the dust box (6) is pulled out from the inner cavity of the box (401), the motor shaft of the rotating motor (801) can pass through the notch in the body of the dust removal scraper (705) without contacting the dust removal scraper (705).

6. The dustproof conveying device for the production of phosphate compound fertilizer according to claim 1, characterized in that: The rotating motor (801) is connected to a fixing frame (803), which is fixedly connected to the two front corners of the upper surface of the box (601). An infrared transmitter (802) is connected to the outer periphery of the rotating motor (801). An infrared receiving hole (805) is opened on the upper surface of the triangular impeller (804). A sensor chip is installed inside the triangular impeller (804), and a signal indicator light is connected to the triangular impeller (804) through the sensor chip.

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