Effective dustproof conveying device for phosphorus compound fertilizer production

Abstract

The invention discloses an effective dustproof conveying device for phosphorus compound fertilizer production, and belongs to the technical field of fertilizer production, transportation and production. A conveying pipe is arranged at the front end of the drying tower, a conveying belt is connected with a driving motor, the tail end of the upper belt face of the conveying belt is fixedly connected with a conveying box, the left end and the right end of the conveying box are connected with limiting devices, an inner cavity of the conveying box is connected with a dustproof box, and the upper surface of the conveying box is connected with a linkage device; dust collection circular grooves are formed in the two corners of the front end of the upper surface of the box body, and dust collection devices are arranged in the dust collection circular grooves. In the aspect of transportation and conveying, the phosphorus and compound fertilizer is transported through the conveying belt and the conveying box fixedly connected with the tail end of the conveying belt, and the designed conveying box, the dustproof box matched with the conveying box and the linkage device can ensure that a large amount of dust cannot be dispersed when the phosphorus and compound fertilizer is fed and conveyed; on the other hand, phosphorus and compound fertilizer dust put into the dustproof box is collected and treated.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer production and transportation, and more particularly to an effective dust-proof conveying device for producing phosphate and compound fertilizers. Background Art

[0002] After the preparation of phosphate compound fertilizers, they will be dried in a drying tower and placed on a conveying device and transported to the weighing and packaging line. The phosphate compound fertilizers dried in the drying tower become solid powders, which are prone to generate large powder dust during transportation. The generated powder dust is easy to pollute the air. Although a protective box can be added to prevent the powder dust from spreading to the ambient air over a large area, these powder dusts are still not collected and processed. If they are attached to the conveying device and the dustproof box for a long time, it will also affect the overall operation of the conveying device. Summary of the Invention

[0003] The object of the present invention is to provide an effective dust-proof conveying device for the production of phosphate and compound fertilizers, so as to solve the problems raised in the above background technology.

[0004] A conveying device for effectively preventing dust from being produced for phosphate and compound fertilizers comprises a drying tower and a conveyor belt, wherein a feeding pipe is provided at the front end of the drying tower, the conveyor belt is connected to a driving motor, and a transmission box is fixedly connected to the tail end of the upper belt surface of the conveyor belt, and a limiting device is connected to the left and right ends of the transmission box, a dust box is connected to the inner cavity of the transmission box, and a linkage device is connected to the upper surface of the transmission box, the dust box comprises a box body, dust collecting circular grooves are provided at the two corners of the front end of the upper surface of the box body, a rectangular groove is provided opposite to the inner cavity of the box body, a dust collecting device is provided in the dust collecting circular groove, and the dust collecting device comprises a rotating motor, and the lower end of the rotating motor The end motor shaft is connected to a triangular impeller, and the linkage device includes a connecting cover, and electric lifting rods are provided at the four corners of the upper surface of the connecting cover, and the two electric lifting rods located at the front end of the lower surface of the connecting cover are fixedly connected to the rod body with fixed rings, and the outer extension of the fixed ring ring is connected to a moving rod, and the moving rod passes through the transmission box, and the bottom end of the moving rod is fixedly connected to a cleaning scraper, and a triangular groove is provided in the center of the cleaning scraper. When the cleaning scraper moves, the triangular impeller can just pass through the triangular groove of the cleaning scraper, and when it is not working, the electric lifting rod is in a retracted state, and the cleaning scraper is located directly below the triangular impeller.

[0005] The cam is connected to the rear of the box body by a threaded hole, and the cam is connected to the rear of the box body by a threaded hole.

[0006] Preferably, the limiting device includes a servo motor and a slide block fixedly connected to the left and right sides of the box body, the upper end of the servo motor is fixedly connected to a spur gear, the upper end of the spur gear is connected to a fixed block, the fixed blocks are respectively fixedly connected to the left and right sides of the box body, and the spur gear is meshed with a bar tooth, a movable slide rod is provided on the smooth back side of the bar tooth, and the movable slide rod is movably connected to the slide block, and the bar tooth is connected in the limiting hole one.

[0007] Preferably, the box body is provided with a circular cavity, a refrigeration pipe is provided on the bottom surface of the circular cavity of the box body, and connecting grooves are provided on the left and right ends of the circular cavity of the box body, the box body is provided with a connecting plug, and the connecting plug is connected to the refrigeration pipe through a wire, the bottom end of the dust collecting circular trough passes through the box body and is threadedly connected with a hollow threaded cap, and a collection box is connected to the circular cavity of the box body, and the collection pot is provided with air holes. When the collection box is connected to the circular cavity of the box body, the air holes are opposite to the rectangular groove, and two 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 cleaning scraper blade is the same as the radius of the dust collecting circular groove, and the cleaning scraper blade body is provided with a notch. 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 of the cleaning scraper blade body without contacting the cleaning scraper blade.

[0009] Preferably, the rotating motor is connected to a fixing bracket, the fixing bracket is fixedly connected to the two corners of the front end of the upper surface of the box body, and the periphery of the rotating motor body is connected to an infrared transmitter, the upper surface of the triangular impeller body is provided with an infrared receiving hole, a sensor chip is provided in the triangular impeller, and a signal display light is connected to the triangular impeller through the sensor chip signal.

[0010] Compared with the prior art, the advantages of the present invention are: (1) In the present 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 dispersed during the transportation of phosphate fertilizers, and the dust collecting device connected to the dustproof box collects and processes the dust of the phosphate fertilizers fed into the dustproof box.

[0011] (2) In the present invention, when a single transport is completed, the electric lifting rod is used to drive the cleaning scraper to move, scraping off the dust attached to the triangular impeller, and finally collecting the dust into the hollow threaded cap. Thereafter, the hollow threaded cap is removed and the dust in the hollow threaded cap is cleaned, thus completing a series of collection, transfer and cleaning.

[0012] (3) In the present invention, when the collecting box is connected to the circular cavity of the box body, the connecting plug is inserted into the connecting hole, and the refrigerator is started and the refrigeration tube works to control and lower the temperature of the circular cavity of the box body, which can not only prevent the phosphate fertilizers from sticking together, but also reduce the dispersion of dust by reducing the molecular thermal motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention from the left side perspective; Figure 2 This is an enlarged schematic diagram of the structure of the dustproof box of the present invention when it is pulled out of the transfer box; Figure 3 It is an enlarged schematic diagram of the back structure of the transmission box of the present invention; Figure 4 It is an enlarged schematic diagram of the front structure of the transmission box of the present invention; Figure 5 It is an enlarged schematic diagram of the limiting device structure of the present invention; Figure 6 It is an enlarged schematic diagram of the dustproof box structure of the present invention; Figure 7 It is an enlarged schematic diagram of the linkage structure of the present invention; Figure 8 It is an enlarged schematic diagram of the dust collecting device structure of the present invention.

[0014] Explanation of the numbers in the figure: 1. Drying tower; 2. Feed pipe; 3. Conveyor belt; 4. Transfer box; 401. Box body; 402. Refrigerator; 403. Limit hole 1; 404. Limit perforation; 405. Connecting hole; 406. Irregular notch; 407. Square notch; 408. Telescopic tube; 409. Dust scraper; 5. Limiting device; 501. Servo motor; 502. Spur gear; 503. Fixed block; 504. Tooth bar; 505. Moving slide bar; 506. Slide block; 6. Dust box; 601. Box body; 602. Refrigerator Tube; 603, connecting plug; 604, dust collecting circular groove; 605, rectangular groove; 606, connecting groove; 607, collecting box; 608, ventilation hole; 609, limiting hole 2; 6010, hollow threaded cap; 7, linkage device; 701, connecting cover; 702, electric lifting rod; 703, fixing ring; 704, moving rod; 705, cleaning scraper; 8, dust collecting device; 801, rotating motor; 802, infrared emitter; 803, fixing bracket; 804, triangular impeller; 805, infrared receiving hole; 9, driving motor. DETAILED DESCRIPTION

[0015] Example: See Figure 1 - Figure 8, an effective dust-proof conveying device for the production of phosphate fertilizers, comprising a drying tower 1 and a conveyor belt 3, a material delivery pipe 2 is provided at the front end of the drying tower 1, the conveyor belt 3 is connected to a drive motor 9, and the tail end of the upper surface of the conveyor belt 3 is fixedly connected to a transmission box 4, the left and right ends of the transmission box 4 are connected to a limiting device 5, the inner cavity of the transmission box 4 is connected to a dust box 6, and the upper surface of the transmission box 4 is connected to a linkage device 7, the dust box 6 includes a box body 601, and the two corners of the upper surface of the box body 601 are provided with dust collecting circular grooves 604, and the dust collecting circular grooves 604 are provided. A rectangular groove 605 is provided opposite to the inner cavity of the box body 601, and a dust collecting device 8 is provided in the dust collecting circular groove 604. The dust collecting device 8 includes a rotating motor 801, and a triangular impeller 804 is connected to the motor shaft at the lower end of the rotating motor 801. The linkage device 7 includes a connecting cover 701, and electric lifting rods 702 are provided at the four corners of the upper surface of the connecting cover 701. The two electric lifting rods 702 located at the front end of the lower surface of the connecting cover 701 are fixedly connected to the rod body with a fixed ring 703, and the fixed ring 703 is outside the body. The extension is connected with a moving rod 704, which passes through the transmission box 4, and the bottom of the moving rod 704 is fixedly connected with a cleaning scraper 705. A triangular groove is provided 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. When it is not working, 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 transmission, the present invention is achieved by means of a conveyor belt 3 and a fixed end thereof. The connected transfer box 4 transports phosphate and compound fertilizers, and the designed transfer box 4 and the dust-proof box 6 and linkage device 7 matched with the transfer box 4 can, on the one hand, ensure that a large amount of dust will not be dispersed during the transportation of phosphate and compound fertilizers. On the other hand, the designed dust collecting device 8 collects and processes the dust of the phosphate and compound fertilizers put into the dust-proof box 6, and when a single transportation is completed, the electric lifting rod 702 is used to drive the cleaning scraper 705 to move, scrape off the dust attached to the triangular impeller 804, and finally collect the dust into the hollow threaded cap 6010.

[0016] See also Figure 3 and Figure 4, 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, and a limit hole 403 is provided on the left and right sides of the box body 401, and the limit hole 403 is connected to the limit device 5, and a limit through-hole 404 is provided at the two corners of the front end of the upper surface of the box body 401, and the limit through-hole 404 is connected to the moving rod 704, and the box body 401 is provided with an inner cavity from the front, and the box body 601 is movably connected in the inner cavity of the box body 401, and a connecting hole 405 is provided on the rear wall of the inner cavity of the box body 401, and the connecting hole 405 is connected to the refrigerator 402 through a wire, and the connecting hole 405 is connected to the dust box 6, an irregular notch 406 is provided at the connection between the upper end of the front of the box body 401 and the inner cavity, and a square notch 407 is provided at the connection between the lower end of the front of the box body 401 and the inner cavity, and the upper surface of the box body 401 is provided with a square notch 407. A telescopic tube 408 is fixedly connected, and the lower end of the telescopic tube 408 passes through the upper surface of the box body 401 and is connected to the inner cavity of the box body 401. The upper pipe mouth of the telescopic tube 408 is fixedly connected to the connecting cover 701, and the inner wall of the upper tube body of the telescopic tube 408 is connected to a cleaning scraper ring 409, wherein the upper and lower surfaces of the connecting cover 701 are circular through-holes, and the diameter of the circular through-hole is one centimeter larger than the outer diameter of the pipe mouth of the feed pipe 2, and the radius of the cleaning scraper ring 409 is the same as the inner diameter of the pipe mouth of the feed pipe 2, and the height of the cleaning scraper ring 409 is the same as the height of the connecting cover 701. When the connecting cover 701, the telescopic tube 408 and the cleaning scraper ring 409 rise under the action of the electric lifting rod 702, the pipe mouth of the feed pipe 2 is inserted into the connecting cover 701. At this time, the cleaning scraper ring 409 cleans the phosphate fertilizer dust attached to the inner wall along the inner wall of the pipe mouth of the feed pipe 2, and performs the first step of cleaning.

[0017] See also Figure 2 and Figure 5 The limit device 5 includes a servo motor 501 and a slide block 506 fixedly connected to the left and right sides of the box body 401. The upper end of the servo motor 501 is fixedly connected to a spur gear 502, and the upper end of the spur gear 502 is connected to a fixed block 503. The fixed block 503 is fixedly connected to the left and right sides of the box body 401 respectively, and the spur gear 502 is meshed with a tooth 504. The smooth back of the tooth 504 is provided with a movable slide bar 505, and the movable slide bar 505 is movably connected to the slide block 506, and the tooth 504 is connected to the limiting hole 403. When the collection and transmission of phosphate fertilizers begins, the dust box 6 is connected to the inner cavity of the transmission box 4. At this time, the servo motor 501 is started, and the spur gear 502 is driven to rotate by the servo motor 501, thereby driving the tooth 504 meshed with the spur gear 502 to pass through the limiting hole 403 and finally insert into the limiting hole 2 609, thereby completing the limiting fixation of the dust box 6.

[0018] See also Figure 6 and Figure 7, the box body 601 is provided with a circular cavity, a refrigeration tube 602 is provided on the bottom surface of the circular cavity of the box body 601, and connecting grooves 606 are provided on the left and right ends of the circular cavity of the box body 601, and a connecting plug 603 is provided on the box body 601, and the connecting plug 603 is connected to the refrigeration tube 602 through a wire, and the bottom end of the dust collecting circular groove 604 passes through the box body 601 and is threadedly connected with a hollow threaded cap 6010, and a collection box 607 is connected to the circular cavity of the box body 601, and the collection pot 607 is provided with a ventilation hole 608. When the collection box 607 is connected to the circular cavity of the box body 601, the ventilation hole 608 is opposite to the rectangular groove 605, and a limiting hole 609 is provided on the left and right sides of the box body 601, wherein the box mouth of the collection box 607 is flush with the upper surface of the box body 601, and the limiting hole 609 is provided on the left and right sides of the box body 601, The second positioning hole 609 is opposite to the limiting hole 403. When the collecting box 607 is connected to the circular cavity of the box body 601, the connecting plug 603 is inserted into the connecting hole 405. At this time, the refrigerator 402 is started and the refrigeration tube 602 works to control and lower the temperature of the circular cavity of the box body 601. It can not only prevent the phosphate fertilizers from sticking together, but also reduce the diffusion of dust by reducing molecular thermal motion. The front surface of the box body 601 is provided with a movable handle, and the collecting box 607 is provided with an ear handle. When the collecting box 607 is connected to the circular cavity of the box body 601, the ear handle of the collecting box 607 is located in the connecting groove 606, and the hollow threaded cap 6010 can collect the fallen dust when the cleaning scraper 705 moves to scrape off the dust attached to the triangular impeller 804, and is detachable.

[0019] See also Figure 6 and Figure 7 When the dust box 6 is pulled out from the inner cavity of the box body 401, the motor shaft of the rotating motor 801 can pass through the notch of the scraper blade 705 without contacting the scraper blade 705. When the transmission box 4 carries the phosphate 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 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 scraper blade 705 is just located at the motor shaft of the rotating motor 801. Then the dust box 6 is pulled out to transfer and collect the phosphate fertilizer in the collection box 607, and the hollow threaded cap 6010 is removed to collect the dust therein.

[0020] See also Figure 2 、 Figure 6 and Figure 8The rotating motor 801 is connected to a fixing bracket 803, which is fixedly connected to the two corners of the front end of the upper surface of the box body 601, and the outer periphery of the rotating motor 801 is connected to an infrared transmitter 802. An infrared receiving hole 805 is provided on the upper surface of the triangular impeller 804. A sensor chip is provided in the triangular impeller 804, and a signal display light is connected to the triangular impeller 804 through the sensor chip signal. The rotating motor 801 drives the triangular impeller 804 to rotate and collect dust. The dust enters the dust collecting circular groove 604 through the air hole 608 and the rectangular groove 605, and then stops the triangular impeller 804 and turns on the infrared transmitter 802. When the signal display light is on, that is, the infrared receiving hole 805 is facing the infrared transmitter 802, the electric lifting rod 702 is started at this time, and the triangular impeller 804 can just pass through the triangular groove of the cleaning scraper ring 409.

[0021] The specific working principle of the present invention is as follows: first, before transportation, the transmission box 4 is located at the tail end of the conveyor belt 3, and the dust box 6 is inside the transmission box 4. At this time, the servo motor 501 is started, and the spur gear 502 is driven to rotate by the servo motor 501, thereby driving the meshing gear 504 of the spur gear 502 to pass through the limiting hole 1 403 and finally insert into the limiting hole 2 609, completing the limiting fixation of the dust box 6. Then, when the connecting cover 701, the telescopic tube 408 and the cleaning scraper 409 rise under the action of the electric lifting rod 702, the pipe mouth of the conveying pipe 2 is inserted into the connecting cover 701. At this time, the cleaning scraper 409 cleans the phosphate fertilizer dust attached to the inner wall along the inner wall of the pipe mouth of the conveying pipe 2, performing the first cleaning step, and then the phosphate 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 circular cavity of the box body 601, the connecting plug 603 is inserted into the connecting hole 405. At this time, the refrigerator 402 is started, and the cooling pipe 602 works to control and lower the temperature of the circular cavity of the box body 601. Then, the conveyor belt 3 moves with the transfer box 4 to its front end; During the movement, the triangular impeller 804 is driven to rotate by the rotating motor 801 to collect dust. The dust enters the dust collecting circular groove 604 through the air outlet 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 display light is on, the infrared receiving hole 805 is facing the infrared transmitter 802. At this time, the electric lifting rod 702 is started, and the connecting cover 701 is lifted by the electric lifting rod 702. At this time, the moving rod 704 moves along the connecting hole 405, and the dust 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 scraper 705 is just located at the motor shaft of the rotating motor 801. Then the dust box 6 is pulled out to transfer and collect the compound fertilizer in the collection box 607, and the hollow threaded cap 6010 is removed to collect the dust therein.

[0022] 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 to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An effective dust-proof conveying device for phosphate compound fertilizer production, comprising a drying tower (1) and a conveyor belt (3), characterized in that: The front end of the drying tower (1) is provided with a material conveying pipe (2), the conveyor belt (3) is connected to a driving motor (9), and the tail end of the upper belt surface of the conveyor belt (3) is fixedly connected to a transmission box (4), the left and right ends of the transmission box (4) are connected to limiting devices (5), the inner cavity of the transmission box (4) is connected to a dustproof box (6), and the upper surface of the transmission box (4) is connected to a linkage device (7), the dustproof box (6) comprises a box body (601), the upper surface of the box body (601) is provided with dust collecting circular grooves (604) at two corners of the front end, the dust collecting circular groove (604) is provided with a rectangular groove (605) directly opposite to the inner cavity of the box body (601), the dust collecting circular groove (604) is provided with a dust collecting device (8), the dust collecting device (8) comprises a rotating motor (801), the motor shaft at the lower end of the rotating motor (801) is connected to a triangular impeller (804), the linkage device (7) is connected to the inner surface of the transmission box (4 ... The device (7) comprises a connecting cover (701), wherein electric lifting rods (702) are arranged at four corners of the upper surface of the connecting cover (701), and two electric lifting rods (702) located at the front end of the lower surface of the connecting cover (701) are fixedly connected to the rod bodies with fixed rings (703), and the outer extension of the fixed ring (703) is connected to a moving rod (704), and the moving rod (704) passes through the transmission box (4), and the bottom end of the moving rod (704) is fixedly connected to a cleaning scraper (705), and a triangular groove is opened in the center of the cleaning scraper (705), and when the cleaning scraper (705) moves, the triangular impeller (804) can just pass through the triangular groove of the cleaning scraper (705), and when not in operation, the electric lifting rod (702) is in a retracted state, and the cleaning scraper (705) is located directly below the triangular impeller (804), 2. The effective dust-proof conveying device for phosphate compound fertilizer production according to claim 1, characterized in that: The transmission box (4) comprises a box body (401) fixedly connected to the conveyor belt (3), a refrigerator (402) is installed on the back of the box body (401), a limiting hole (403) is provided on the left and right sides of the box body (401), and the limiting hole (403) is connected to the limiting device (5), and limiting through holes (404) are provided at the two corners of the front end of the upper surface of the box body (401), and the limiting through holes (404) are connected to the moving rod (704), the box body (401) is provided with an inner cavity from the front, and the box body (601) is movably connected to the inner cavity of the box body (401), and a connecting hole (405) is provided on the rear wall of the inner cavity of the box body (401), and the connecting hole (405) is provided on the rear wall of the inner cavity of the box body (401). 05) The refrigerator (402) is connected via a wire, and the connecting hole (405) is connected to the dustproof box (6). An irregular notch (406) is provided at the connection between the upper end of the front face of the box body (401) and the inner cavity, and a square notch (407) is provided at the connection between the lower end of the front face of the box body (401) and the inner cavity. A telescopic tube (408) is fixedly connected to the upper surface of the box body (401), and the lower end of the telescopic tube (408) passes through the upper surface of the box body (401) and is connected to the inner cavity of the box body (401). The upper tube mouth 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 body of the telescopic tube (408).

3. An effective dust-proof conveying device for phosphate compound fertilizer production according to claim 2, characterized in that: The limiting device (5) comprises a servo motor (501) and a slide block (506) fixedly connected to the left and right sides of the box body (401); the upper end of the servo motor (501) is fixedly connected to a spur gear (502); the upper end of the spur gear (502) is connected to a fixed block (503); the fixed block (503) is respectively fixedly connected to the left and right sides of the box body (401); the spur gear (502) is meshingly connected to a bar tooth (504); a movable slide rod (505) is provided on the smooth back side of the bar tooth (504); the movable slide rod (505) is movably connected to the slide block (506); and the bar tooth (504) is connected to the first limiting hole (403).

4. The effective dust-proof conveying device for phosphate compound fertilizer production according to claim 1, characterized in that: The box body (601) is provided with a circular cavity, a refrigeration tube (602) is arranged on the bottom surface of the circular cavity of the box body (601), and connection grooves (606) are arranged on the left and right ends of the circular cavity opening of the box body (601), the box body (601) is provided with a connection plug (603), and the connection plug (603) is connected to the refrigeration tube (602) through a wire, the bottom end of the dust collecting circular groove (604) passes through the box body (601) and is threadedly connected with a hollow threaded cap (6010), and a collection box (607) is connected in the circular cavity of the box body (601), and the collection pot (607) is provided with a ventilation hole (608), when the collection box (607) is connected to the circular cavity of the box body (601), the ventilation hole (608) is opposite to the rectangular groove (605), and the left and right sides of the box body (601) are provided with a second limiting hole (609).

5. The effective dust-proof conveying device for phosphate compound fertilizer production according to claim 1, characterized in that: The electric lifting rod (702) is fixedly mounted at the four corners of the upper surface of the transmission box (4); the radius of the cleaning scraper (705) is the same as the radius of the dust collecting circular groove (604); and a notch is provided on the body of the cleaning scraper (705); when the dustproof box (6) is pulled out of the inner cavity of the box body (401), the motor shaft of the rotating motor (801) can pass through the notch on the body of the cleaning scraper (705) without coming into contact with the cleaning scraper (705).

6. The effective dust-proof conveying device for phosphate compound fertilizer production according to claim 1, characterized in that: The rotating motor (801) is connected to a fixing frame (803), the fixing frame (803) is fixedly connected to the two corners of the front end of the upper surface of the box body (601), and the outer periphery of the rotating motor (801) is connected to an infrared transmitter (802), the upper surface of the triangular impeller (804) is provided with an infrared receiving hole (805), a sensor chip is arranged in the triangular impeller (804), and a signal display light is connected in the triangular impeller (804) through the sensor chip signal.

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