A high-tower granulation compound fertilizer production device and its use method

Abstract

This invention relates to the field of compound fertilizer production technology, specifically to a high-tower granulation compound fertilizer production device and its usage method. The device includes a circular melting tank with a hollow heating chamber in the center. It also includes an annular stirring frame positioned above the circular melting tank, with a guide rotating ring surrounding the top of the side wall of the tank. The annular stirring frame is rotatably connected to the circular melting tank via the guide rotating ring. Multiple horizontal support frames are arranged around the inner side of the annular stirring frame. This invention uses vertical filter cylinders connected to the horizontal support frames to filter the molten material inside the circular melting tank while stirring it. Impurities in the material are intercepted and collected by the vertical filter cylinders, preventing impurities in the raw materials from affecting the fertilizer production quality. Simultaneously, the vertical filter cylinders can be vertically pulled out for easy cleaning of the collected impurities.

Description

Technical Field

[0001] This invention relates to the field of compound fertilizer production technology, and in particular to a high-tower granulation compound fertilizer production device and its usage method. Background Technology

[0002] High-tower granulation compound fertilizer generally involves heating and melting urea with raw materials such as phosphorus and potassium in a melting tank until they are fully mixed, then spraying the mixture down from the top of the tower and allowing it to cool naturally to complete the granulation process. The overall production energy consumption is relatively low. The most important component is the melting and heating equipment. In order to ensure that the raw materials are fully mixed, the melting tank is usually equipped with a corresponding stirring and mixing mechanism when heating and melting the raw materials.

[0003] Patent application number CN201922185792.5 discloses a bubbling agitator for a melting tank in compound fertilizer production, comprising: a melting tank, wherein a stirring device is provided inside the melting tank, one end of the stirring device is connected to the output end of a reducer via a coupling, the input end of the reducer is connected to the output end of a drive motor via a coupling, both ends of the melting tank are mounted on an equipment bracket via melting tank mounting brackets, the stirring device includes a stirring shaft, and a plurality of stirring blade fixing rods are provided on the outside of the stirring shaft, one end of the stirring blade fixing rod is welded and fixed to the stirring shaft, and the other end is equipped with a stirring blade fixing seat, wherein stirring blades are provided inside the stirring blade fixing seat, and the stirring mechanism can achieve full stirring of materials, ensure uniform heating of materials, and improve product quality.

[0004] However, the raw materials added to the melting tank are generally mixed with various impurities. These impurities not only affect the production quality of fertilizer, but also cause greater frictional resistance to the mixing mechanism, resulting in increased energy consumption of the mixing structure and reduced service life. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a high-tower granulation compound fertilizer production device and its usage method, so as to solve the problem that impurities mixed in the raw materials affect the production quality of fertilizer, and lead to increased energy consumption and reduced service life of the mixing structure.

[0006] To achieve the above objectives, the present invention provides a high-tower granulation compound fertilizer production apparatus, comprising a circular melting tank, wherein a hollow heating chamber is disposed in the center of the circular melting tank, and further comprising:

[0007] An annular stirring rack is disposed above the circular melting tank. A guide rotating ring is arranged around the top of the side wall of the circular melting tank. The annular stirring rack is rotatably connected to the circular melting tank through the guide rotating ring.

[0008] A horizontal support frame, multiple horizontal support frames are arranged around the inner side of the annular stirring frame, the outer ends of the horizontal support frames are connected to the annular stirring frame, the inner ends of all the horizontal support frames intersect and are connected to the center of the circular melting tank, and a horizontal guide groove is provided in the middle of the horizontal support frame;

[0009] A vertical collecting cylinder is vertically positioned behind the horizontal support frame. A sliding slide is located in the middle of the vertical collecting cylinder. The vertical collecting cylinder is slidably connected to a horizontal guide groove located in the middle of the horizontal support frame via the sliding slide. A receiving opening is located at the bottom of the vertical collecting cylinder. A guide sleeve is located at the top of the vertical collecting cylinder. A lifting traction rod is slidably fitted inside the guide sleeve. A centrifugal motor is connected to the bottom end of the lifting traction rod. A lifting piston is connected to the shaft end of the centrifugal motor.

[0010] A vertical filter cylinder is connected and installed below the lifting piston. The vertical filter cylinder has a filter opening in the middle, and its side walls and bottom are densely covered with filter connection holes.

[0011] Furthermore, the hollow heating chamber is uniformly surrounded by multiple gas supply pipes, each with a combustion nozzle in the center. The inner wall of the hollow heating chamber is uniformly provided with multiple heat-absorbing fins, and the outer side of the hollow heating chamber is connected to a ventilation exhaust pipe.

[0012] Furthermore, the inner wall of the circular melting tank is uniformly surrounded by a plurality of interlocking heat-conducting plates, and an annular heat-conducting plate is provided below the inner side of the annular stirring rack. The annular heat-conducting plate has a plurality of interlocking heat-conducting grooves in the middle, and the annular heat-conducting plate is interlocked and attached to the circular melting tank through the interlocking heat-conducting grooves and the interlocking heat-conducting plates.

[0013] Furthermore, the inner side of the annular heat-conducting plate is uniformly surrounded by multiple fitting and mounting grooves in a circular shape. An L-shaped heat-conducting sheet is slidably and detachably connected to the inner side of the fitting and mounting groove. Multiple flow guide holes are uniformly arranged in the middle of the L-shaped heat-conducting sheet. A scraper fitting groove is provided in the middle of the bottom of the L-shaped heat-conducting sheet. Vertical guide grooves are provided on both the left and right sides of the scraper fitting groove. An inclined rotating shaft is fitted inside the vertical guide groove. A stirring scraper is rotatably connected in the middle of the inclined rotating shaft. The stirring scraper is slidably connected to the vertical guide groove through the inclined rotating shaft.

[0014] Furthermore, a horizontal cloth cylinder is arranged parallel to the front side of the horizontal support frame, a horizontal conveying trough is arranged horizontally at the bottom of the horizontal cloth cylinder, a spiral conveying plate is rotatably fitted inside the horizontal cloth cylinder, and multiple horizontal blocking plates are evenly arranged horizontally around the outer edge of the spiral conveying plate in a circular shape. The dimensions of the horizontal blocking plates and the horizontal conveying trough are matched, and a conveying motor is connected to the shaft end of the spiral conveying plate.

[0015] Furthermore, a vertical conveying cylinder is provided above the center of the circular melting tank, and a rotating connecting cylinder is rotatably connected to the bottom end of the vertical conveying cylinder. Multiple inclined conveying cylinders are circumferentially connected to the outer side of the rotating connecting cylinder, and the rotating connecting cylinder is interconnected with the horizontal cloth cylinder through the inclined conveying cylinders.

[0016] Furthermore, a rotating shaft is provided between the vertical collecting cylinder and the translation slide, and the vertical collecting cylinder and the translation slide are rotatably connected to each other through the rotating shaft. A rotating motor is provided at the shaft end of the rotating shaft, a translation screw sleeve is provided in the middle of the translation slide, and a translation screw is provided in the middle of the horizontal guide groove. The translation slide is connected to the translation screw through the translation screw sleeve, and a translation motor is provided at the shaft end of the translation screw.

[0017] Furthermore, an arc-shaped filter plate is symmetrically arranged in the middle of the filter opening, and the arc-shaped filter plate is densely arranged with connecting filter holes in the middle. A connecting hinge is provided between the arc-shaped filter plate and the vertical filter cylinder. The arc-shaped filter plate and the vertical filter cylinder are rotatably connected to each other through the connecting hinge. An unfolding spring is provided in the middle of the connecting hinge. The unfolding spring pulls the arc-shaped filter plate to rotate and unfold outward along the connecting hinge.

[0018] Furthermore, a spacer binding ring is provided in the middle of the receiving opening, and a conical guide frame is provided below the spacer binding ring. The conical guide frame and the arc-shaped filter plate are dimensionally matched, and the spacer binding ring and the vertical filter cylinder are dimensionally matched. When the vertical filter cylinder slides upward along the receiving opening and is embedded into the vertical collection cylinder, the conical guide frame presses the arc-shaped filter plate to rotate inward and close along the connecting hinge.

[0019] A method of using a high-tower granulation compound fertilizer production device includes the following steps:

[0020] The raw materials are conveyed from a vertical conveyor cylinder to a rotating connecting cylinder, and further conveyed along an inclined conveyor cylinder to a horizontal distribution cylinder. A rotating spiral conveyor plate evenly transports the material in the horizontal distribution cylinder horizontally. The material naturally falls along the horizontal conveying trough into a circular melting tank below for heating, melting, and mixing. Simultaneously, the horizontal distribution cylinder rotates along with the annular stirring frame while conveying the material. A gas delivery pipe delivers gas through a combustion nozzle to heat the circular melting tank. At the same time, the annular stirring frame drives multiple L-shaped heat-conducting plates embedded in the annular heat-conducting plate to rotate synchronously, simultaneously heating and stirring the material. The annular stirring frame also drives the vertical filter cylinder on the horizontal support frame to rotate, allowing the material inside the circular melting tank to be filtered through the vertical filter cylinder. The material is stirred, and the material in the circular melting tank naturally enters the vertical filter cylinder through the filter opening and is filtered by the vertical filter cylinder. Impurities in the material are intercepted and collected by the vertical filter cylinder for filtration and impurity removal. While the vertical filter cylinder is filtering, the sliding block drives the vertical collecting cylinder and the vertical filter cylinder to move horizontally back and forth synchronously to improve the stirring and filtration efficiency. After a certain period of filtration and impurity removal, the vertical filter cylinder is pulled vertically into the vertical collecting cylinder by the pneumatic telescopic rod. Then, the vertical collecting cylinder rotates from the vertical state to the horizontal state, and the pneumatic telescopic rod pushes the vertical filter cylinder to extend from the vertical collecting cylinder to clean the impurities collected in it. This completes the melting, mixing and impurity removal work of the compound fertilizer raw materials.

[0021] The beneficial effects of this invention are as follows: As can be seen from the above description, the high-tower granulation compound fertilizer production device provided by this invention filters the material molten inside the circular melting tank while stirring it, through a vertical filter cylinder connected to a horizontal support frame. Impurities in the material can be intercepted and collected by the vertical filter cylinder, avoiding the impact of impurities in the raw materials on the fertilizer production quality. This helps to reduce the overall energy consumption of the device and improve its service life. Furthermore, the vertical filter cylinder can move horizontally back and forth along the horizontal support frame to improve stirring and filtration efficiency. At the same time, the vertical filter cylinder can be vertically pulled out to facilitate the cleaning of the filtered and collected impurities, making it more convenient and faster to use. The device uses a rotating annular stirring frame to drive the horizontal support frame and the vertical filter cylinder to stir the material molten inside the circular melting tank. Multiple L-shaped heat-conducting plates are also arranged around the annular stirring frame. The L-shaped heat-conducting plates not only improve the contact efficiency between the material and the inner wall of the circular melting tank, but also stir the material to a certain extent, thereby improving the heating efficiency and uniformity of the device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0024] Figure 2 This is a front view of an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of a circular melting tank according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the annular stirring rack according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the L-shaped heat-conducting sheet according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the horizontal support frame according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the vertical conveying cylinder according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the horizontal fabric cylinder according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the vertical collecting cylinder rotating to a horizontal state according to an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the vertical collecting cylinder according to an embodiment of the present invention;

[0033] Figure 11 This is a structural schematic diagram of the vertical filter cylinder in the raised state according to an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the vertical filter cylinder according to an embodiment of the present invention.

[0035] The diagram is marked as follows:

[0036] 1. Circular melting tank; 101. Guide rotating ring; 102. Embedded heat-conducting plate; 103. Hollow heating chamber; 104. Gas delivery pipe; 105. Combustion nozzle; 106. Heat-absorbing fins; 107. Ventilation and exhaust pipe; 2. Annular stirring frame; 201. Annular heat-conducting plate; 202. Embedded heat-conducting groove; 203. Embedded mounting groove; 204. Rotating disc teeth; 205. Drive gear; 206. Drive motor; 3. L-shaped heat-conducting plate; 301. Flow guide hole; 302. Scraper embedding groove; 303. Vertical guide groove; 304. Inclined rotating shaft; 305. Stirring scraper; 4. Horizontal support frame; 401. Horizontal guide groove; 402. Translation screw; 403. Translation motor; 5. Horizontal material distribution cylinder; 501. Horizontal conveying trough; 502. Spiral conveying plate; 503. Horizontal sealing plate; 504. Conveying motor; 6. Vertical conveying cylinder; 601. Rotary connecting cylinder; 602. Inclined conveying cylinder; 7. Vertical collecting cylinder; 701. Tilting shaft; 702. Tilting motor; 703. Translation slide; 704. Translation screw sleeve; 705. Guide sleeve; 706. Receiving opening; 707. Spacer restraint ring; 708. Conical guide frame; 8. Lifting piston; 801. Lifting traction rod; 802. Centrifugal motor; 803. Pneumatic telescopic rod; 9. Vertical filter cylinder; 901. Filter opening; 902. Arc-shaped filter plate; 903. Connecting hinge; 904. Unfolding spring; 905. Connecting filter hole. Detailed Implementation

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0038] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 9, Figure 10 , Figure 11 and Figure 12 As shown, a high-tower granulation compound fertilizer production device includes a circular melting tank 1, with a hollow heating chamber 103 disposed in the middle of the circular melting tank 1, and further includes:

[0040] An annular stirring rack 2 is positioned above a circular melting tank 1. A guide rotating ring 101 is arranged around the top of the side wall of the circular melting tank 1. The annular stirring rack 2 is rotatably connected to the circular melting tank 1 through the guide rotating ring 101.

[0041] A horizontal support frame 4, multiple horizontal support frames 4 are arranged around the inner side of the annular stirring frame 2, the outer ends of the horizontal support frames 4 are connected to the annular stirring frame 2, the inner ends of all the horizontal support frames 4 intersect and are connected to the center of the circular melting tank 1, and a horizontal guide groove 401 is provided in the middle of the horizontal support frame 4;

[0042] A vertical collecting cylinder 7 is vertically arranged behind the horizontal support frame 4. A translation slide 703 is provided in the middle of the vertical collecting cylinder 7. The vertical collecting cylinder 7 is slidably connected to the horizontal guide groove 401 provided in the middle of the horizontal support frame 4 through the translation slide 703. A receiving opening 706 is provided at the bottom of the vertical collecting cylinder 7. A guide sleeve 705 is provided at the top of the vertical collecting cylinder 7. A lifting traction rod 801 is slidably fitted inside the guide sleeve 705. A centrifugal motor 802 is connected to the bottom end of the lifting traction rod 801. A lifting piston 8 is connected to the shaft end of the centrifugal motor 802.

[0043] A vertical filter cylinder 9 is connected and installed below the lifting piston 8. A filter opening 901 is provided in the middle of the vertical filter cylinder 9, and connection filter holes 905 are densely arranged on the side wall and bottom of the vertical filter cylinder 9.

[0044] In this embodiment, the device uses a circular melting tank 1 to hold urea and raw materials such as phosphorus and potassium, and heats and melts the raw materials for mixing. An annular stirring frame 2 is supported on the side wall of the circular melting tank 1. The annular stirring frame 2 is rotatably connected to the top of the side wall of the circular melting tank 1 via a guide rotating ring 101. Multiple horizontal support frames 4 are provided on the annular stirring frame 2. Each horizontal support frame 4 is independently equipped with a stirring and filtering structure composed of vertical filter cylinders 9. The vertical filter cylinders 9 are connected to the horizontal support frames 4 via vertical collecting cylinders 7. A rotating disc tooth 204 is arranged around the outer side of the annular stirring frame 2. A drive gear 205 is meshed on the outer side of the rotating disc tooth 204. A drive motor 206 is connected to the shaft end of the drive gear 205. Therefore, the drive motor 206 can drive the annular stirring frame 2 to rotate through the drive gear 205 and the rotating disc gear 204, thereby driving all the horizontal support frames 4 and the vertical filter cylinder 9 to rotate synchronously. The lower end of the vertical filter cylinder 9 extends into the inner side of the circular melting tank 1, which can stir the material inside the circular melting tank 1 to improve the uniformity of the material mixing. The vertical filter cylinder 9 is provided with a filter opening 901. When the vertical filter cylinder 9 rotates around the inner side of the circular melting tank 1, the filter opening 901 is located on the front of the vertical filter cylinder 9. Therefore, the material in the circular melting tank 1 can naturally enter the vertical filter cylinder 9 through the filter opening 901 and be filtered by the vertical filter cylinder 9. Impurities in the material are intercepted and collected by the vertical filter cylinder 9, thereby avoiding The absence of impurities in the raw materials, which could affect fertilizer production quality, helps reduce overall energy consumption and extend the service life of the equipment. Simultaneously, the vertical collecting cylinder 7 is slidably connected to the horizontal guide groove 401 in the middle of the horizontal support frame 4 via a sliding slide 703. This allows the vertical filter cylinder 9 to move horizontally back and forth along the horizontal support frame 4 during stirring and filtration, improving stirring and filtration efficiency. The lifting traction rod 801 can also lift the vertical filter cylinder 9 upwards into the circular melting tank 1, allowing it to be nested into the vertical collecting cylinder 7 through the receiving opening 706, facilitating the cleaning of impurities collected during filtration. Furthermore, a centrifugal motor 802 and a lifting piston 8 are connected between the lifting traction rod 801 and the vertical filter cylinder 9. The centrifugal motor 802 can drive the vertical... The filter cylinder 9 rotates to adjust the angle of the filter opening 901 according to production needs. At the same time, when the vertical filter cylinder 9 is inside the vertical collection cylinder 7, the centrifugal motor 802 can drive the vertical filter cylinder 9 to rotate at high speed, so as to throw out the raw materials adhering to the vertical filter cylinder 9 through centrifugal force, so that the material can fall naturally along the vertical filter cylinder 9 into the circular melting tank 1 for recycling. This not only avoids the adhering raw materials from solidifying and clogging the connecting filter holes 905 on the vertical filter cylinder 9, affecting the subsequent filtration efficiency, but also reduces raw material loss. At the same time, when the lifting traction rod 801 drives the vertical collection cylinder 7 downward to a certain extent, the lifting piston 8 also descends synchronously to scrape off and push out the raw materials adhering to the inner wall of the vertical filter cylinder 9, which helps to further improve the reliability and ease of use of the device.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, preferably, a plurality of gas delivery pipes 104 are uniformly arranged around the center of the hollow heating chamber 103, and a plurality of combustion nozzles 105 are arranged in the center of the gas delivery pipes 104. A plurality of heat-absorbing fins 106 are uniformly arranged on the inner wall of the hollow heating chamber 103, and a ventilation exhaust pipe 107 is connected to the outer side of the hollow heating chamber 103. A plurality of interlocking heat-conducting plates 102 are uniformly arranged around the inner wall of the circular melting tank 1. An annular heat-conducting plate 201 is arranged below the inner side of the annular stirring rack 2. A plurality of interlocking heat-conducting grooves 202 are arranged in the center of the annular heat-conducting plate 201. The annular heat-conducting plate 201 is interlocked and attached to the circular melting tank 1 through the interlocking heat-conducting grooves 202 and the interlocking heat-conducting plates 102. The inner side of the annular heat-conducting plate 201 is circumferential. Multiple fitting mounting grooves 203 are evenly arranged around the device. An L-shaped heat-conducting plate 3 is detachably and slidably connected to the inner side of each fitting mounting groove 203. Multiple guide holes 301 are evenly arranged in the middle of the L-shaped heat-conducting plate 3. A scraper fitting groove 302 is located in the center of the bottom of the L-shaped heat-conducting plate 3. Vertical guide grooves 303 are provided on both the left and right sides of the scraper fitting groove 302. An inclined rotating shaft 304 is fitted inside the vertical guide groove 303. A stirring scraper 305 is rotatably connected to the center of the inclined rotating shaft 304. The stirring scraper 305 is slidably connected to the vertical guide groove 303 via the inclined rotating shaft 304. The device heats, melts, and mixes the raw materials through a circular melting tank 1. The circular melting tank 1 is connected to the hollow heating chamber 103 through the central... Multiple gas delivery pipes 104 are uniformly arranged around the circular melting tank 1 for heating. The gas delivery pipes 104 deliver gas through combustion nozzles 105 for combustion to heat the circular melting tank 1. Multiple heat-absorbing fins 106 are uniformly arranged on the inner wall of the hollow heating chamber 103 to improve heating efficiency. Meanwhile, an annular heat-conducting plate 201 inside the circular melting tank 1 is interlocked and attached to the circular melting tank 1 through interlocking heat-conducting grooves 202 and interlocking heat-conducting plates 102, allowing the annular heat-conducting plate 201 to contact the internal material for heating. The interlocking heat-conducting grooves 202 and interlocking heat-conducting plates 102 improve heat transfer efficiency. Multiple L-shaped heat-conducting plates 3 can be interlocked and installed on the annular heat-conducting plate 201, further enhancing the annular heat transfer efficiency. The increased contact area between the hot plate 201 and the material improves the overall efficiency and uniformity of material heating. Simultaneously, the annular stirring frame 2 drives the annular heat-conducting plate 201 and all the L-shaped heat-conducting plates 3 on it to rotate synchronously, allowing for simultaneous heating and stirring of the material, further enhancing heating efficiency and uniformity. Furthermore, a stirring scraper 305 is located at the lower end of each L-shaped heat-conducting plate 3. As the scraper 305 rotates with the L-shaped heat-conducting plate 3, it scrapes the bottom of the circular melting tank 1, preventing overheating and adhesion of the material to the bottom of the circular melting tank 1. The stirring scraper 305 is slidably connected to the vertical guide groove 303 via an inclined rotating shaft 304, while the stirring scraper 305 and the inclined rotating shaft 304 are rotatably connected.Therefore, when encountering debris, the stirring scraper 305 can avoid getting stuck by moving up and down and rotating, which improves its reliability during use. Furthermore, the L-shaped heat-conducting plate 3 is detachably mounted on the annular heat-conducting plate 201 by sliding and fitting into the mounting groove 203. The L-shaped heat-conducting plate 3 can be installed, removed, and replaced by sliding up and down, facilitating adjustment according to actual production needs and simplifying maintenance.

[0046] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, preferably, a horizontal feeding cylinder 5 is arranged parallel to the front side of the horizontal support frame 4. A horizontal conveying trough 501 is horizontally arranged at the bottom of the horizontal feeding cylinder 5. A spiral conveying plate 502 is rotatably fitted inside the horizontal feeding cylinder 5. Multiple horizontal blocking plates 503 are evenly arranged in a circular shape around the outer edge of the spiral conveying plate 502. The dimensions of the horizontal blocking plates 503 and the horizontal conveying trough 501 are mutually matched. A conveying motor 504 is connected to the shaft end of the spiral conveying plate 502. The center of the circular melting tank 1 is... A vertical conveyor cylinder 6 is installed at the top, and a rotating connecting cylinder 601 is rotatably connected to the bottom end of the vertical conveyor cylinder 6. Multiple inclined conveyor cylinders 602 are circumferentially connected to the outer side of the rotating connecting cylinder 601. The rotating connecting cylinder 601 is interconnected with the horizontal feeding cylinder 5 through the inclined conveyor cylinders 602. The device is equipped with a feeding and feeding structure formed by the horizontal feeding cylinder 5. The raw materials required for fertilizer production can be conveyed to the device through the vertical conveyor cylinder 6. The raw materials can be further conveyed to the inclined feeding cylinders through the rotating connecting cylinder 601 below. The material is conveyed through an inclined conveyor cylinder 602 to a horizontal feeding cylinder 5. The conveying motor 504 drives the spiral conveying plate 502 inside the horizontal feeding cylinder 5 to rotate, so as to uniformly convey the material in the horizontal feeding cylinder 5 in the horizontal direction. The material can then fall naturally into the circular melting tank 1 below through the horizontal conveying trough 501 set at the bottom of the horizontal feeding cylinder 5 for melting and mixing. While conveying the material, the horizontal feeding cylinder 5 can rotate with the annular stirring frame 2, thereby improving the uniformity of the material conveying and distribution. At the same time, a horizontal blocking plate 503 is also set on the outside of the spiral conveying plate 502. The spiral conveying plate 502 can drive the horizontal blocking plate 503 to rotate synchronously. When the horizontal blocking plate 503 rotates to the horizontal conveying trough 501, it will block the horizontal conveying trough 501 to stop the material distribution. Therefore, by rotating the spiral conveying plate 502, the horizontal conveying trough 501 can be blocked in stages. By adjusting the rotation speed of the spiral conveying plate 502, the feeding and distribution speed can be adjusted according to the production needs, which is beneficial to improving the flexibility of the device.

[0047] like Figure 1 , Figure 2 , Figure 6 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, preferably, a rotating shaft 701 is provided between the vertical collecting cylinder 7 and the translation slide 703. The vertical collecting cylinder 7 and the translation slide 703 are rotatably connected to each other through the rotating shaft 701. A rotating motor 702 is provided at the shaft end of the rotating shaft 701. A translation screw sleeve 704 is provided in the middle of the translation slide 703. A translation screw 402 is provided in the middle of the horizontal guide groove 401. The translation slide 703 is connected to the translation screw 402 through the translation screw sleeve 704. A translation motor 403 is provided at the shaft end of the translation screw 402. A pneumatic telescopic rod 803 is connected above the lifting traction rod 801. The device filters the molten material inside the circular melting tank 1 while stirring it through the vertical filter cylinder 9. The translation motor 403 can drive the translation through the translation screw 402 and the translation screw sleeve 704. The slide block 703 moves horizontally along the horizontal guide groove 401, thereby driving the vertical collecting cylinder 7 and the vertical filter cylinder 9 to move horizontally, improving the stirring and filtering efficiency. The vertical filter cylinder 9 can be vertically moved and lifted into the vertical collecting cylinder 7 for cleaning via the pneumatic telescopic rod 803. The vertical collecting cylinder 7 and the sliding slide block 703 are connected to each other by a rotating shaft 701. Therefore, the rotating motor 702 can drive the vertical collecting cylinder 7 to rotate and adjust the angle via the rotating shaft 701. When the vertical filter cylinder 9 can be vertically moved and lifted into the vertical collecting cylinder 7, the vertical collecting cylinder 7 can rotate from a vertical state to a horizontal state. Then, the pneumatic telescopic rod 803 can push the vertical filter cylinder 9 out of the vertical collecting cylinder 7 to facilitate the cleaning of the filtered and collected debris, making it more convenient and faster to use.

[0048] like Figure 1 , Figure 2 , Figure 6 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, preferably, an arc-shaped filter plate 902 is symmetrically arranged in the middle of the filter opening 901. Connecting filter holes 905 are densely arranged in the middle of the arc-shaped filter plate 902. A connecting hinge 903 is provided between the arc-shaped filter plate 902 and the vertical filter cylinder 9. The arc-shaped filter plate 902 and the vertical filter cylinder 9 are rotatably connected to each other via the connecting hinge 903. A deployment spring 904 is provided in the middle of the connecting hinge 903. The deployment spring 904 pulls the arc-shaped filter plate 902 to rotate outwards along the connecting hinge 903. A spacer restraining ring 707 is provided in the middle of the storage opening 706. A conical guide frame is provided below the spacer restraining ring 707. 708, the tapered guide frame 708 and the arc-shaped filter plate 902 are dimensionally matched, and the spacer restraint ring 707 and the vertical filter cylinder 9 are dimensionally matched. When the vertical filter cylinder 9 slides upward along the receiving opening 706 and embeds itself into the vertical collecting cylinder 7, the tapered guide frame 708 squeezes the arc-shaped filter plate 902 to rotate inward along the connecting hinge 903 and close. The device filters the material molten inside the circular melting tank 1 while stirring it through the vertical filter cylinder 9. When the vertical filter cylinder 9 rotates around the inner side of the circular melting tank 1, the material in the circular melting tank 1 can naturally enter the vertical filter cylinder 9 through the filter opening 901, so as to pass through the vertical filter cylinder 9. Filtration is performed, and impurities in the material are intercepted and collected by the vertical filter cylinder 9. A curved filter plate 902 is symmetrically arranged in the middle of the filter opening 901. When the vertical filter cylinder 9 is located in the circular melting tank 1, the unfolding spring 904 pulls the curved filter plate 902 to naturally rotate outward along the connecting hinge 903, thereby increasing the overall filtration interception area of ​​the vertical filter cylinder 9 and improving filtration efficiency. When the vertical filter cylinder 9 slides upward along the receiving opening 706 and embeds into the vertical collecting cylinder 7, the conical guide frame 708 presses the curved filter plate 902 to rotate inward along the connecting hinge 903 and close, thus closing the curved filter plate 902. The filter opening 901 allows the vertical filter cylinder 9 to rotate at high speed, using centrifugal force to fling out the raw materials adhering to it and to allow the intercepted debris to leak out. When the vertical collecting cylinder 7 rotates from a vertical position to a horizontal position for cleaning, the vertical collecting cylinder 7 can be adjusted by rotating to position the filter opening 901 directly below. At this time, when the vertical filter cylinder 9 extends from the vertical collecting cylinder 7, the unfolding spring 904 pulls the arc-shaped filter plate 902 to naturally rotate outward along the connecting hinge 903 to open the filter opening 901. The material intercepted inside naturally falls out through the filter opening 901 to complete the cleaning, thereby improving the convenience of use and maintenance of the device.

[0049] In use, the corresponding pipelines of the device are first connected. The gas delivery pipe 104 delivers gas through the combustion nozzle 105 to heat the circular melting tank 1. Then, the raw material is conveyed from the vertical conveying cylinder 6 to the rotating connecting cylinder 601, and further conveyed along the inclined conveying cylinder 602 to the horizontal distribution cylinder 5. The conveying motor 504 drives the spiral conveying plate 502 to rotate and uniformly convey the material in the horizontal distribution cylinder 5 in the horizontal direction. The material falls naturally along the horizontal conveying trough 501 into the circular melting tank 1 below for heating, melting and mixing. At the same time, the drive motor 206 drives the drive gear 205. The rotating disc 204 drives the annular stirring frame 2 to rotate around the inner side of the circular melting tank 1. Meanwhile, the horizontal feeding cylinder 5, when conveying material, rotates synchronously with the horizontal support frame 4 on the annular stirring frame 2 to improve the uniformity of material conveying. Simultaneously, the annular stirring frame 2 drives multiple L-shaped heat-conducting plates 3 embedded on the annular heat-conducting plate 201 to rotate synchronously, heating and stirring the material. It also drives the stirring scraper 305 to rotate synchronously, scraping the bottom of the circular melting tank 1 to prevent the material from being overheated and sticking to the bottom of the circular melting tank 1. The annular stirring frame 2 also drives the horizontal support... The vertical filter cylinder 9 on the support frame 4 rotates to stir the molten material inside the circular melting tank 1. The material in the circular melting tank 1 naturally enters the vertical filter cylinder 9 through the filter opening 901 and is filtered by the vertical filter cylinder 9. Impurities in the material are intercepted and collected by the vertical filter cylinder 9 for filtration and impurity removal. Simultaneously, the sliding block 703 drives the vertical collecting cylinder 7 and the vertical filter cylinder 9 to move horizontally and reciprocally in sync to improve stirring and filtration efficiency. After a certain period of filtration and impurity removal, the vertical filter cylinder 9 is then purged with air. The telescopic rod 803 pulls the vertical material into the vertical collection cylinder 7. Then, the centrifugal motor 802 drives the vertical filter cylinder 9 to rotate at high speed, so that the raw materials adhering to the vertical filter cylinder 9 are thrown out by centrifugal force, allowing the material to fall naturally along the vertical filter cylinder 9 into the circular melting tank 1 for recycling. After centrifugation, the flipping motor 702 drives the vertical collection cylinder 7 to rotate from the vertical state to the horizontal state through the flipping shaft 701, and the pneumatic telescopic rod 803 pushes the vertical filter cylinder 9 out of the vertical collection cylinder 7 to clean the impurities collected in it, thus completing the melting, mixing and impurity removal work of the compound fertilizer raw materials.

[0050] A method of using a high-tower granulation compound fertilizer production device includes the following steps:

[0051] The raw materials are conveyed from the vertical conveying cylinder 6 to the rotating connecting cylinder 601, and further conveyed along the inclined conveying cylinder 602 to the horizontal distributing cylinder 5. The spiral conveying plate 502 rotates to uniformly convey the material in the horizontal distributing cylinder 5 in the horizontal direction. The material falls naturally along the horizontal conveying trough 501 into the circular melting tank 1 below for heating, melting and mixing. At the same time, the horizontal distributing cylinder 5 rotates along with the annular stirring frame 2 while conveying the material. The gas conveying pipe 104 delivers gas through the combustion nozzle 105 to heat the circular melting tank 1. Simultaneously, the annular stirring frame 2 drives multiple L-shaped heat-conducting plates 3 embedded on the annular heat-conducting plate 201 to rotate synchronously, stirring the material while heating it. The annular stirring frame 2 also drives the vertical filter cylinder 9 on the horizontal support frame 4 to rotate, so that the vertical filter cylinder 9 can be used to heat the circular melting tank 1. The internally melted material is stirred, and the material in the circular melting tank 1 naturally enters the vertical filter cylinder 9 through the filter opening 901 and is filtered by the vertical filter cylinder 9. Impurities in the material are intercepted and collected by the vertical filter cylinder 9 for filtration and impurity removal. While the vertical filter cylinder 9 is filtering, the translation slide 703 drives the vertical collecting cylinder 7 and the vertical filter cylinder 9 to move horizontally back and forth synchronously to improve stirring and filtration efficiency. After a certain period of filtration and impurity removal, the vertical filter cylinder 9 is pulled vertically into the vertical collecting cylinder 7 by the pneumatic telescopic rod 803. Then, the vertical collecting cylinder 7 rotates from a vertical state to a horizontal state, and the pneumatic telescopic rod 803 pushes the vertical filter cylinder 9 out of the vertical collecting cylinder 7 to facilitate the cleaning of the filtered and collected impurities, thus completing the melting, mixing and impurity removal work of the compound fertilizer raw materials.

[0052] The high-tower granulation compound fertilizer production device provided by this invention uses a vertical filter cylinder 9 connected to a horizontal support frame 4 to filter the material molten inside the circular melting tank 1 while stirring it. Impurities in the material can be intercepted and collected by the vertical filter cylinder 9, avoiding the impact of impurities in the raw materials on the fertilizer production quality. This helps reduce the overall energy consumption of the device and improve its service life. The vertical filter cylinder 9 can move horizontally back and forth along the horizontal support frame 4 to improve stirring and filtering efficiency. At the same time, the vertical filter cylinder 9 can be vertically pulled out to facilitate the cleaning of the filtered and collected impurities, making it more convenient and quick to use. The device uses a ring stirring frame 2 to rotate, which drives the horizontal support frame 4 and the vertical filter cylinder 9 to stir the material molten inside the circular melting tank 1. The ring stirring frame 2 is also surrounded by multiple L-shaped heat-conducting plates 3. The L-shaped heat-conducting plates 3 not only improve the contact efficiency between the material and the inner wall of the circular melting tank 1, but also stir the material to a certain extent, thereby improving the heating efficiency and uniformity of the device.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0054] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A high-tower granulation compound fertilizer production device, comprising a circular melting tank (1), wherein a hollow heating chamber (103) is disposed in the middle of the circular melting tank (1), characterized in that, Also includes: An annular stirring rack (2) is disposed above the circular melting tank (1). A guide rotating ring (101) is arranged around the top of the side wall of the circular melting tank (1). The annular stirring rack (2) is rotatably connected to the circular melting tank (1) through the guide rotating ring (101). A horizontal support frame (4) is provided. Multiple horizontal support frames (4) are arranged around the inner side of the annular stirring frame (2). The outer ends of the horizontal support frames (4) are connected to the annular stirring frame (2). The inner ends of all the horizontal support frames (4) are connected to each other at the center of the circular melting tank (1). A horizontal guide groove (401) is provided in the middle of the horizontal support frame (4). A vertical collecting cylinder (7) is vertically arranged on the rear side of the horizontal support frame (4). A translation slide (703) is provided in the middle of the vertical collecting cylinder (7). The vertical collecting cylinder (7) is slidably connected to the horizontal guide groove (401) provided in the middle of the horizontal support frame (4) through the translation slide (703). A receiving opening (706) is provided at the bottom of the vertical collecting cylinder (7). A guide sleeve (705) is provided at the top of the vertical collecting cylinder (7). A lifting traction rod (801) is slidably fitted inside the guide sleeve (705). A centrifugal motor (802) is connected to the bottom end of the lifting traction rod (801). A lifting piston (8) is connected to the shaft end of the centrifugal motor (802). A vertical filter cylinder (9) is connected and disposed below the lifting piston (8). A filter opening (901) is provided in the middle of the vertical filter cylinder (9). Connection filter holes (905) are densely arranged on the side wall and bottom of the vertical filter cylinder (9).

2. The high-tower granulation compound fertilizer production device according to claim 1, characterized in that, The hollow heating chamber (103) is uniformly surrounded by multiple gas delivery pipes (104). Multiple combustion nozzles (105) are connected to the side of the gas delivery pipes (104) near the inner wall of the hollow heating chamber (103). Multiple heat-absorbing fins (106) are uniformly arranged on the inner wall of the hollow heating chamber (103). A ventilation exhaust pipe (107) is connected to the outer side of the hollow heating chamber (103).

3. The high-tower granulation compound fertilizer production device according to claim 1, characterized in that, The inner wall of the circular melting tank (1) is longitudinally and evenly distributed with a plurality of interlocking heat-conducting plates (102) in an annular shape. The inner lower side of the annular stirring rack (2) is provided with an annular heat-conducting plate (201). The outer wall of the annular heat-conducting plate (201) is longitudinally and evenly distributed with a plurality of interlocking heat-conducting grooves (202) in an annular shape. The annular heat-conducting plate (201) is interlocked and attached to the circular melting tank (1) through the interlocking heat-conducting grooves (202) and the interlocking heat-conducting plates (102).

4. The high-tower granulation compound fertilizer production device according to claim 3, characterized in that, The inner side of the annular heat-conducting plate (201) is uniformly surrounded by multiple fitting and mounting grooves (203). An L-shaped heat-conducting sheet (3) is slidably and detachably connected to the inner side of the fitting and mounting groove (203). Multiple flow guide holes (301) are uniformly arranged in the middle of the L-shaped heat-conducting sheet (3). A scraper fitting groove (302) is provided in the middle of the bottom of the L-shaped heat-conducting sheet (3). Vertical guide grooves (303) are provided on both the left and right sides of the scraper fitting groove (302). An inclined rotating shaft (304) is fitted into the inner side of the vertical guide groove (303). A stirring scraper (305) is rotatably connected in the middle of the inclined rotating shaft (304). The stirring scraper (305) is slidably connected to the vertical guide groove (303) through the inclined rotating shaft (304).

5. The high-tower granulation compound fertilizer production device according to claim 1, characterized in that, A horizontal cloth cylinder (5) is arranged parallel to the front side of the horizontal support frame (4). A horizontal conveying groove (501) is arranged horizontally at the bottom of the horizontal cloth cylinder (5). A spiral conveying plate (502) is fitted and rotated inside the horizontal cloth cylinder (5). Multiple horizontal blocking plates (503) are arranged horizontally in a circular shape around the outer edge of the spiral conveying plate (502). The dimensions of the horizontal blocking plates (503) and the horizontal conveying groove (501) are matched. A conveying motor (504) is connected to the shaft end of the spiral conveying plate (502).

6. The high-tower granulation compound fertilizer production apparatus according to claim 5, characterized in that, A vertical conveying cylinder (6) is provided above the center of the circular melting tank (1). A rotating connecting cylinder (601) is rotatably connected to the bottom end of the vertical conveying cylinder (6). Multiple inclined conveying cylinders (602) are circumferentially connected to the outer side of the rotating connecting cylinder (601). The rotating connecting cylinder (601) is connected to the horizontal cloth cylinder (5) through the inclined conveying cylinders (602).

7. The high-tower granulation compound fertilizer production apparatus according to claim 1, characterized in that, A rotating shaft (701) is provided between the vertical collecting cylinder (7) and the translation slide (703). The vertical collecting cylinder (7) and the translation slide (703) are rotatably connected to each other through the rotating shaft (701). A rotating motor (702) is provided at the shaft end of the rotating shaft (701). A translation screw sleeve (704) is provided in the middle of the translation slide (703). A translation screw (402) is provided in the middle of the horizontal guide groove (401). The translation slide (703) is connected to the translation screw (402) through the translation screw sleeve (704). A translation motor (403) is provided at the shaft end of the translation screw (402).

8. The high-tower granulation compound fertilizer production apparatus according to claim 1, characterized in that, A curved filter plate (902) is symmetrically arranged in the middle of the filter opening (901). The curved filter plate (902) is densely arranged with connecting filter holes (905) in the middle. A connecting hinge (903) is provided between the curved filter plate (902) and the vertical filter cylinder (9). The curved filter plate (902) and the vertical filter cylinder (9) are rotatably connected to each other through the connecting hinge (903). A deployment spring (904) is provided in the middle of the connecting hinge (903). The deployment spring (904) pulls the curved filter plate (902) to rotate and unfold outward along the connecting hinge (903).

9. The high-tower granulation compound fertilizer production apparatus according to claim 8, characterized in that, A spacer binding ring (707) is provided in the middle of the receiving opening (706), and a conical guide frame (708) is provided below the spacer binding ring (707). The conical guide frame (708) and the arc-shaped filter plate (902) are dimensionally matched. The spacer binding ring (707) and the vertical filter cylinder (9) are dimensionally matched. When the vertical filter cylinder (9) slides upward along the receiving opening (706) and is embedded into the vertical collection cylinder (7), the conical guide frame (708) squeezes the arc-shaped filter plate (902) to rotate inward along the connecting hinge (903) and close.

10. A method of using the high-tower granulation compound fertilizer production apparatus according to any one of claims 1-9, characterized in that, The process includes the following steps: the raw material is conveyed from the vertical conveying cylinder (6) to the rotating connecting cylinder (601), and further conveyed along the inclined conveying cylinder (602) to the horizontal distribution cylinder (5). The spiral conveying plate (502) rotates to uniformly convey the material in the horizontal distribution cylinder (5) in the horizontal direction. The material falls naturally along the horizontal conveying trough (501) into the circular melting tank (1) below for heating, melting and mixing. At the same time, the horizontal distribution cylinder (5) rotates with the annular stirring frame (2) while conveying the material. The gas conveying pipe (104) delivers gas through the combustion nozzle (105) to heat the circular melting tank (1). Meanwhile, the annular stirring frame (2) drives multiple L-shaped heat-conducting plates (3) embedded on the annular heat-conducting plate (201) to rotate synchronously. While heating the material, the annular stirring frame (2) also drives the vertical filter cylinder (9) on the horizontal support frame (4) to rotate so that the material passes through the vertical filter cylinder (9). The material molten inside the circular melting tank (1) is stirred, and the material in the circular melting tank (1) naturally enters the vertical filter cylinder (9) through the filter opening (901) and is filtered by the vertical filter cylinder (9). Impurities in the material are intercepted and collected by the vertical filter cylinder (9) for filtration and impurity removal. While the vertical filter cylinder (9) is filtering, the translation slide (703) drives the vertical collecting cylinder (7) and the vertical filter cylinder (9) to move horizontally back and forth synchronously to improve the stirring and filtration efficiency. After a certain period of filtration and impurity removal, the vertical filter cylinder (9) is pulled vertically to the vertical collecting cylinder (7) by the pneumatic telescopic rod (803). Then the vertical collecting cylinder (7) rotates from the vertical state to the horizontal state, and the pneumatic telescopic rod (803) pushes the vertical filter cylinder (9) to extend from the vertical collecting cylinder (7) to clean the impurities collected in it, thus completing the melting, mixing and impurity removal work of the compound fertilizer raw materials.

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