Granulation mechanism of tower granulation and its application in preparation of high-tower fulvic acid compound fertilizer

Abstract

The invention relates to the technical field of high-tower granulation, in particular to a granulating mechanism of tower granulation and its application in the preparation of high-tower humic acid compound fertilizer, comprising a tower body and a spraying mechanism, wherein the spraying mechanism comprises a cylindrical hole-shaped nozzle and a rotating drive component, wherein a cleaning mechanism is arranged in the cylindrical hole-shaped nozzle, wherein the cleaning mechanism comprises an adsorption component, wherein the adsorption component comprises a suction port, wherein the suction port is close to the inner wall of the cylindrical hole-shaped nozzle, and the cleaning mechanism further comprises a suction component. The invention provides a device capable of sucking foreign matter in the spray hole on the inner side of the cylindrical hole-shaped nozzle, wherein the foreign matter can be sucked away from the nozzle, thereby preventing the foreign matter from gathering in the cylindrical hole-shaped nozzle and re-clogging the spray hole, thereby solving the problem that the existing cleaning device squeezes the foreign matter in the spray hole into the cylindrical hole-shaped nozzle, and the foreign matter can re-clog the spray hole under the action of centrifugal force due to the rotating cylindrical hole-shaped nozzle, thereby solving the problem that the cleaning effect on the nozzle is better, and there is no need to stop the machine for cleaning, thereby greatly improving the granulation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of high-tower granulation, in particular to a granulation mechanism of tower granulation and its application in the preparation of high-tower fulvic acid compound fertilizer. Background Art

[0002] In the compound fertilizer production process, tower nozzle granulation technology is currently the more common granulation technology. The melt slurry is sent to the top of the granulation tower and enters the granulation nozzle. Under the rotation of the nozzle, the raw material is sprayed out through the small holes on the nozzle to form droplets. The droplets meet the air flowing upstream during the descent process and gradually cool and crystallize into particles.

[0003] The spiral granulation nozzles for high-tower compound fertilizers in the prior art are all hole-type granulation nozzles, and the melt slurry is sprayed out from thousands of small holes of the nozzles. Since the melt slurry raw materials inevitably contain solid insolubles, unpacked fibers, and powder agglomerates that are not fully mixed that are greater than the process requirements, it is easy to cause the nozzle holes to be blocked. If a nozzle hole is blocked, it will produce accompanying fine flows and splashing droplets, resulting in defective products, seriously affecting the qualified rate of finished products and the quality of granulation, and may also be accompanied by serious accidents of sticking to the tower wall and the bottom of the tower.

[0004] Therefore, in order to avoid the nozzle being blocked and to maintain the qualified rate of the finished product, it is necessary to frequently stop the machine to replace or clean the granulation nozzle, which will inevitably interrupt the continuity of production and cause higher operating costs.

[0005] Chinese patent publication number CN112973570B discloses a cleaning device for a compound fertilizer high tower granulation nozzle, comprising a granulation high tower, a blower, a particle collecting mechanism, a nozzle cleaning mechanism, a granulation mechanism, a rain cover, a fixed support plate, and a visual probe. The outer wall of the granulation high tower is provided with a plurality of blowers, the top of the granulation high tower is provided with a rain cover, the interior of the granulation high tower is provided with a fixed support plate, a granulation mechanism is provided on one side of the fixed support plate, and a nozzle cleaning mechanism is provided on one side of the granulation mechanism.

[0006] The cleaning device cleans the nozzle through the nozzle cleaning mechanism to prevent the crystallization of the fertilizer from clogging the nozzle. However, because the nozzle hole of the nozzle is cleaned from the outside of the nozzle, foreign matter clogging the nozzle hole will gather in the nozzle. However, the foreign matter will be re-clogged in the nozzle hole under the action of centrifugal force, and the problem of foreign matter clogging the nozzle hole cannot be effectively solved. Summary of the invention

[0007] In view of the above problems, a tower granulation granulation mechanism is provided. An adsorption component capable of sucking foreign matter in the spray hole is arranged on the inner side of the nozzle. At the same time, the foreign matter can be sucked away from the nozzle by the suction component to prevent the foreign matter from accumulating in the nozzle and re-clogging the spray hole. This solves the problem that when the existing cleaning device cleans foreign matter in the spray hole, the foreign matter will re-clog the spray hole due to the centrifugal force of the rotating nozzle.

[0008] In order to solve the problems of the prior art, the present invention provides a granulation mechanism for tower granulation, including a tower body and a spraying mechanism arranged on the top of the inner cavity of the tower body, the spraying mechanism has a cylindrical hole-type nozzle that can rotate relative to the tower body, and a rotating drive component for driving the cylindrical hole-type nozzle to rotate relative to the tower body, a cleaning mechanism is arranged in the cylindrical hole-type nozzle, the cleaning mechanism has an adsorption component extending along the longitudinal direction, the adsorption component has a suction port extending along the longitudinal direction, the suction port is close to the inner wall of the cylindrical hole-type nozzle, the cleaning mechanism also includes a suction component for extracting air from the suction port, and in a working state, when the cylindrical hole-type nozzle rotates relative to the cleaning mechanism, the suction port sucks foreign matter blocked in the holes of the cylindrical hole-type nozzle.

[0009] Preferably, the adsorption component also has a collecting port extending longitudinally, the suction port is connected to the collecting port, the diameter of the suction port gradually decreases from the inner wall of the cylindrical hole type nozzle toward the axial direction of the cylindrical hole type nozzle, the suction component has a collecting chamber arranged at the bottom of the cylindrical hole type nozzle, and the bottom of the collecting port is connected to the collecting chamber.

[0010] Preferably, the adsorption component further has buffer cavities located on both sides of the collection port, the buffer cavities are closed relative to the inner cavity of the cylindrical hole-type nozzle, and the cylindrical hole-type nozzle discharges the melt slurry remaining in the hole when rotating through the buffer cavity.

[0011] Preferably, the suction assembly has a suction tube coaxially arranged in the inner cavity of the cylindrical hole-shaped nozzle, and a suction member arranged in the suction tube for sucking air upward and conveying foreign matter, and the bottom port of the suction tube extends into the collection cavity.

[0012] Preferably, a perforated tube coaxial with the suction tube is provided at the bottom end of the suction tube, the bottom end of the perforated tube extends downward and is close to the bottom end of the collecting chamber, the aperture of the perforated tube is smaller than the aperture of the cylindrical eyelet-type nozzle, the suction member includes a rotating shaft coaxially rotatably arranged in the suction tube, a perforated spiral blade coaxial with the rotating shaft is provided on the circumferential surface of the rotating shaft, and the rotating shaft is transmission-connected to the rotary drive assembly.

[0013] Preferably, a foreign matter collection bin is provided at the top of the suction tube, a spiral blade with holes extends into the foreign matter collection bin, an inclined surface is provided at the bottom of the inner cavity of the foreign matter collection bin, and the spiral blade with holes slides the foreign matter sent into the foreign matter collection bin to the lowest point of the foreign matter collection bin.

[0014] Preferably, the tower body has a tower top, the top of the suction pipe is fixedly connected to the tower top, the cylindrical hole-shaped nozzle is coaxially rotatably arranged at the bottom of the tower top relative to the perforated tube, a feeding cavity is arranged at the top of the cylindrical hole-shaped nozzle, and a feeding port for feeding melt slurry into the feeding cavity is arranged on the tower top.

[0015] Preferably, a sealing cylinder extending downward to the outer circumferential surface of the cylindrical hole-shaped nozzle is provided at the bottom end of the tower top, and a connecting cylinder rotatably connected to the suction pipe is provided at the top end of the cylindrical hole-shaped nozzle.

[0016] Preferably, a foreign matter storage bin detachably connected to the foreign matter collection bin is provided at the top of the tower body, and a foreign matter discharge port communicable with the foreign matter storage bin is provided at the lower part of the inner cavity of the foreign matter collection bin.

[0017] The tower granulation granulation mechanism is used in the application of high-tower humic acid compound fertilizer preparation. The tower granulation granulation mechanism is used to realize the application of humic acid compound fertilizer preparation. The foreign matter blocked in the holes of the cylindrical hole-type nozzle is sucked out by the cleaning mechanism.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present application provides a device on the inner side of the cylindrical hole-shaped nozzle that can absorb foreign matter in the spray hole. At the same time, the foreign matter can be sucked away from the nozzle, thereby preventing the foreign matter from gathering in the cylindrical hole-shaped nozzle and re-clogging the spray hole. This solves the problem that the existing cleaning device will squeeze the foreign matter in the spray hole into the cylindrical hole-shaped nozzle, and the foreign matter will re-clog the spray hole under the action of centrifugal force due to the rotation of the cylindrical hole-shaped nozzle. The nozzle has a better cleaning effect and there is no need to stop the machine for cleaning, which greatly improves the granulation efficiency.

[0020] This application can improve production efficiency: by cleaning the nozzle, equipment downtime caused by nozzle blockage or damage is avoided, thereby significantly improving production efficiency and the stability of equipment operation.

[0021] Reduce maintenance costs: Reduce the time and labor costs of equipment downtime for repairs, and also reduce the additional costs that may be incurred due to equipment failure.

[0022] Improve product quality: Ensuring the normal operation of the printhead helps maintain product quality and consistency, which is critical to product safety and reliability.

[0023] Enhanced safety: Since the nozzle can be cleaned, the risk of workers entering dangerous areas is reduced, improving the safety of the working environment.

[0024] Environmental protection and energy saving: By improving the cleanliness of the printhead, resources can be used more efficiently and energy consumption can be reduced. It also helps to reduce waste emissions, which is in line with the current environmental protection trend.

[0025] Moreover, the present application adopts a suction method to conveniently remove and discharge foreign matter in the spray hole, and the provided buffer chamber can also discharge the residual melt slurry and foreign matter separately.

[0026] In summary, the setting of this cleaning mechanism not only improves production efficiency and product quality, but also helps to reduce operating costs and protect the environment. It is a very valuable innovation for modern production facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the granulation mechanism of tower granulation.

[0028] Figure 2 It is a three-dimensional diagram of the spraying mechanism and the cleaning mechanism in the granulating mechanism of the tower granulation.

[0029] Figure 3 It is a three-dimensional cross-sectional view of the spraying mechanism and the cleaning mechanism in the granulating mechanism of the tower granulation.

[0030] Figure 4 It is a cross-sectional view of the spraying mechanism and the cleaning mechanism in the granulating mechanism of the tower granulation.

[0031] Figure 5 It is a top view of the adsorption component in the granulation mechanism of tower granulation.

[0032] Figure 6 yes Figure 4 A partial enlarged view of point A.

[0033] Figure 7 It is a partial three-dimensional decomposition of the spraying mechanism in the granulation mechanism of the tower granulation Figure 1 .

[0034] Figure 8 It is a partial three-dimensional decomposition of the spraying mechanism in the granulation mechanism of the tower granulation Figure 2 .

[0035] Fig. 9 It is a three-dimensional diagram of the adsorption component and the suction component in the granulation mechanism of the tower granulation.

[0036] Fig.10 It is a three-dimensional diagram of the adsorption component in the granulation mechanism of tower granulation.

[0037] The numbers in the figure are: 11, tower body; 12, tower top; 121, feeding port; 13, sealing cylinder; 14, foreign matter storage bin; 21, cylindrical hole-type nozzle; 211, material drop chamber; 212, connecting cylinder; 22, rotary drive assembly; 221, motor; 222, gear ring; 223, gear; 224, driven shaft; 31, adsorption assembly; 311, suction port; 312, collection port; 313, buffer chamber; 32, suction assembly; 321, collection chamber; 322, suction pipe; 3221, perforated pipe; 3222, foreign matter collection bin; 3223, connecting pipe; 331, rotating shaft; 332, perforated spiral blade; 34, top plate; 35, bottom plate; 36, connecting column. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides:

[0040] The granulation mechanism of the tower granulation comprises a tower body 11 and a spraying mechanism arranged at the top of the inner cavity of the tower body 11, the spraying mechanism has a cylindrical hole-shaped nozzle 21 which can rotate relative to the tower body 11, and a rotating drive component 22 for driving the cylindrical hole-shaped nozzle 21 to rotate relative to the tower body 11, a cleaning mechanism is arranged in the cylindrical hole-shaped nozzle 21, the cleaning mechanism has an adsorption component 31 extending along the longitudinal direction, the adsorption component 31 has a suction port 311 extending along the longitudinal direction, the suction port 311 is close to the inner wall of the cylindrical hole-shaped nozzle 21, the cleaning mechanism also includes a suction component 32 for extracting air from the suction port 311, and in the working state, when the cylindrical hole-shaped nozzle 21 rotates relative to the cleaning mechanism, the suction port 311 sucks foreign matter blocked in the holes of the cylindrical hole-shaped nozzle 21.

[0041] During operation, the rotary drive assembly 22 is started in advance so that the rotary drive assembly 22 can drive the spraying mechanism to rotate in the tower body 11, and the melt slurry is poured into the cylindrical hole-shaped nozzle 21, so that the melt slurry is separated from the rotating cylindrical hole-shaped nozzle 21 through the spray hole, and the melt slurry condenses into solid particles during the falling process, thereby completing the granulation operation in the tower body 11.

[0042] During the process of rotating spraying of the cylindrical hole type nozzle 21, the nozzle hole is easily blocked by foreign matter, and the foreign matter is stuck in the nozzle hole under the action of centrifugal force. Therefore, an adsorption component 31 is provided in the cylindrical hole type nozzle 21, so that when the nozzle hole passes through the suction port 311, the foreign matter stuck in the nozzle hole can be sucked into the adsorption component 31, and at the same time, the foreign matter can be discharged from the cylindrical hole type nozzle 21 through the suction component 32, so as to prevent excessive foreign matter from clogging the cleaning channel.

[0043] In this embodiment, an adsorption component 31 capable of sucking foreign matter in the spray hole is provided on the inner side of the cylindrical hole type nozzle 21, and at the same time, the foreign matter can be sucked away from the cylindrical hole type nozzle 21 by the suction component 32, so as to avoid the foreign matter from gathering in the cylindrical hole type nozzle 21 and re-clogging the spray hole. This solves the problem that the existing cleaning device will squeeze the foreign matter in the spray hole into the cylindrical hole type nozzle 21, and the foreign matter will re-clog the spray hole under the action of centrifugal force due to the rotation of the cylindrical hole type nozzle 21. The cleaning effect of the cylindrical hole type nozzle 21 is better, and there is no need to stop the machine for cleaning, which greatly improves the granulation efficiency.

[0044] like Figure 5 As shown, the adsorption component 31 also has a collecting port 312 extending in the longitudinal direction, the suction port 311 is connected to the collecting port 312, the diameter of the suction port 311 gradually decreases from the inner wall of the cylindrical hole type nozzle 21 to the axial direction of the cylindrical hole type nozzle 21, the suction component 32 has a collecting chamber 321 arranged at the bottom of the cylindrical hole type nozzle 21, and the bottom of the collecting port 312 is connected to the collecting chamber 321.

[0045] In order to prevent foreign matter in the suction port 311 from getting stuck in the spray hole in the lower area during the falling process, a collecting port 312 is provided in the adsorption component 31, and the diameter of the suction port 311 gradually decreases toward the collecting port 312, which is equivalent to the function of a one-way valve, so that foreign matter in the collecting port 312 is not easy to fall back into the suction port 311, so that after the air in the collecting port 312 is sucked away by the collecting chamber 321, the air in the suction port 311 flows to the collecting port 312, so that the foreign matter stuck in the spray hole can be sucked into the suction port 311 and enter the collecting port 312, and the foreign matter gradually falls into the collecting chamber 321 in the collecting port 312, so that the foreign matter in the collecting chamber 321 is sucked out from the cylindrical hole-type nozzle 21 by the suction component 32.

[0046] like Figure 5 As shown, the adsorption component 31 also has a buffer cavity 313 located on both sides of the collection port 312. The buffer cavity 313 is closed relative to the inner cavity of the cylindrical hole-type nozzle 21. When the cylindrical hole-type nozzle 21 rotates through the buffer cavity 313, the melt slurry remaining in the hole is discharged.

[0047] Because not all the nozzles passing through the suction port 311 are stuck with foreign matter, or some molten slurry passes through the suction port 311 before being thrown away from the nozzle, the molten slurry will be sucked away by the suction port 311, which will not only cause a waste of resources, but also cause the molten slurry to be blocked in the collecting port 312 or the collecting chamber 321, affecting the discharge of foreign matter. Therefore, a buffer chamber 313 is set on both sides of the collecting port 312, and the buffer chamber 313 is closed relative to the inner cavity of the cylindrical hole-shaped nozzle 21, so that when the nozzle with residual molten slurry passes through the buffer chamber 313, there is no molten slurry on the inner side of the nozzle. Because the cylindrical hole-shaped nozzle 21 rotates at a high speed, under the action of centrifugal force, the molten slurry remaining in the nozzle can be thrown out in time in the buffer chamber 313 area, so that in the suction port 311 area, only foreign matter can be sucked away from the nozzle by the suction port 311, thereby improving the cleaning efficiency and cleaning effect of the cylindrical hole-shaped nozzle 21.

[0048] During the process of cleaning the cylindrical hole type nozzle 21, granulation is not performed, and no melt slurry is sprayed out from the spray hole of the cylindrical hole type nozzle 21 at this time. The buffer chamber 313 is closed relative to the inner cavity of the cylindrical hole type nozzle 21. First, the edge of the buffer chamber 313 can scrape off the melt slurry remaining on the inner wall of the cylindrical hole type nozzle 21; second, under the action of centrifugal force, the melt slurry remaining in the spray hole can be thrown away from the cylindrical hole type nozzle 21, and the blocked foreign matter is more difficult to be thrown out. Therefore, the foreign matter is sucked into the suction port 311 during further rotation.

[0049] The outer side of the buffer cavity 313 abuts against the inner wall of the cylindrical hole-shaped nozzle 21 . When the cylindrical hole-shaped nozzle 21 rotates, the outer side of the buffer cavity 313 can prevent the melt slurry from entering the buffer cavity 313 .

[0050] like Figure 4 As shown, the suction assembly 32 has a suction tube 322 coaxially arranged in the inner cavity of the cylindrical hole-shaped nozzle 21, and a suction member arranged in the suction tube 322 for sucking air upward and transporting foreign matter, and the bottom port of the suction tube 322 extends into the collection chamber 321.

[0051] The bottom end of the suction pipe 322 is provided with a coaxial top plate 34, which is located in the cylindrical hole-type nozzle 21. The bottom end of the top plate 34 is also provided with a bottom plate 35 connected to it through a connecting column 36. The bottom plate 35 is conical, that is, the inner diameter gradually decreases from top to bottom. The top edge of the bottom plate 35 rotates coaxially with the bottom end of the cylindrical hole-type nozzle 21.

[0052] By making the bottom plate 35 have a structure in which the inner diameter gradually decreases downward, foreign matter falling from the collecting port 312 can fall into the bottom plate 35 and gather at the center position of the bottom plate 35 under the action of the inclined surface of the bottom plate 35, so that the gathered foreign matter can be delivered into the suction tube 322 by the suction piece, thereby realizing the discharge of the foreign matter.

[0053] A collecting chamber 321 for collecting foreign matter is formed between the top plate 34 and the bottom plate 35 .

[0054] When foreign matter passing through the suction port 311 area is sucked into the collecting chamber 321 by the suction port 311, since the suction tube 322 is coaxially arranged in the cylindrical hole-shaped nozzle 21 and the suction tube 322 extends to the lower part of the collecting chamber 321, and a suction piece is arranged in the suction tube 322, the foreign matter in the lower part of the collecting chamber 321 can be sent into the suction tube 322 under the action of the suction piece, and then discharged from the cylindrical hole-shaped nozzle 21 through the suction tube 322, so as to prevent excessive foreign matter from clogging the collecting chamber 321.

[0055] like Figure 6As shown, the bottom end of the suction pipe 322 is provided with a coaxial perforated tube 3221, the bottom end of the perforated tube 3221 extends downward and is close to the bottom end of the collecting chamber 321, the aperture of the perforated tube 3221 is smaller than the aperture of the cylindrical eyelet type nozzle 21, the suction member includes a rotating shaft 331 coaxially rotatably arranged in the suction pipe 322, the circumferential surface of the rotating shaft 331 is provided with a coaxial perforated spiral blade 332, and the rotating shaft 331 is transmission-connected to the rotating drive assembly 22.

[0056] The aperture of the perforated tube 3221 is smaller than that of the cylindrical eyelet-type nozzle 21, which can prevent foreign matter from getting stuck in the hole of the perforated tube 3221. Under the same working state, the smaller the aperture, the greater the suction force generated, thus helping to increase the suction force when the air in the collection chamber 321 passes through the holes in the upper part of the perforated tube 3221.

[0057] The rotary drive assembly 22 includes a motor 221 disposed on the top of the tower body 11 , and an output shaft of the motor 221 is coaxially connected to the rotating shaft 331 .

[0058] After starting the rotary drive assembly 22, the rotating shaft 331 can drive the perforated spiral blade 332 to rotate in the suction pipe 322. Since the bottom end of the perforated spiral blade 332 extends to the lower part of the collecting chamber 321, and the perforated tube 3221 is close to the lower part of the collecting chamber 321, foreign matter at the bottom of the perforated tube 3221 can be lifted upward by the rotating perforated spiral blade 332, so that the foreign matter can be discharged from the cylindrical hole-type nozzle 21.

[0059] At the same time, the perforated tube 3221 and the perforated spiral blade 332 are both provided with holes, so that when the air in the suction tube 322 is extracted, the air in the collection port 312 and the collection chamber 321 can be discharged outward through the holes, thereby guiding the foreign matter in the spray hole to be sucked into the suction port 311, thereby cleaning the spray hole.

[0060] like Figure 4 As shown, a foreign matter collecting bin 3222 is provided at the top of the suction tube 322, and a perforated spiral blade 332 extends into the foreign matter collecting bin 3222. An inclined surface is provided at the bottom of the inner cavity of the foreign matter collecting bin 3222. The perforated spiral blade 332 slides the foreign matter sent into the foreign matter collecting bin 3222 to the lowest point of the foreign matter collecting bin 3222.

[0061] A connecting pipe 3223 connected to an air pump is provided at the top of the foreign matter collecting bin 3222, and the air in the suction pipe 322 is guided to flow upward through the air pump.

[0062] This method of sucking foreign matter from the nozzle of the granulation tower through airflow can bring the following beneficial effects:

[0063] Improve production efficiency: Using air flow suction technology can quickly and effectively remove foreign matter from the spray hole, reduce downtime, and thus improve production efficiency.

[0064] Ensure product quality: The presence of foreign matter may affect the product quality during the granulation process. The airflow suction technology can ensure that the product is not contaminated and improve product quality.

[0065] Reduce maintenance costs: Traditional cleaning methods may require manual or mechanical equipment, which not only increases labor intensity but may also cause damage to the equipment. Airflow suction technology can reduce dependence on additional equipment and reduce maintenance costs.

[0066] Improved safety: During the high tower granulation process, the presence of foreign matter may increase the risk of operation. Through airflow suction technology, foreign matter can be safely removed without contacting the hazardous area, improving the safety of the entire operation.

[0067] Environmental protection and energy saving: Air flow suction technology does not require additional energy consumption, such as water or other cooling media, so it can save energy and reduce the impact on the environment.

[0068] In summary, the method of using ventilation air to absorb foreign matter from the spray holes of the granulation tower nozzle can not only improve production efficiency and product quality, but also reduce maintenance costs, improve safety, and be environmentally friendly and energy-saving. These effects are very beneficial to any manufacturer engaged in the granulation business.

[0069] The rotating perforated spiral blade 332 can lift the foreign matter in the collection chamber 321 into the foreign matter collection bin 3222, and the bottom of the inner cavity of the foreign matter collection bin 3222 is an inclined surface, so that under the action of gravity, the foreign matter will slide to the lowest end of the foreign matter collection bin 3222, thereby preventing the foreign matter from being blocked at the top of the suction tube 322 and affecting the discharge of other foreign matter.

[0070] like Figure 7 , Figure 8 and Fig. 9 As shown, the tower body 11 has a tower top 12, the top end of the suction pipe 322 is fixedly connected to the tower top 12, the cylindrical hole-shaped nozzle 21 and the perforated tube 3221 are coaxially rotatably arranged at the bottom of the tower top 12, a feeding cavity 211 is arranged at the top of the cylindrical hole-shaped nozzle 21, and a feeding port 121 capable of feeding melt slurry into the feeding cavity 211 is arranged on the tower top 12.

[0071] By setting a drop cavity 211 at the top of the cylindrical hole type nozzle 21 and making the suction pipe 322 fixedly connected to the tower top 12, the cylindrical hole type nozzle 21 can rotate relative to the suction pipe 322, and the melt slurry can be fed into the drop cavity 211 through the feeding port 121. The melt slurry is buffered by the drop cavity 211 and then falls into the cylindrical hole type nozzle 21, thereby preventing the melt slurry from falling directly into the cylindrical hole type nozzle 21 and affecting the throwing out of the melt slurry.

[0072] like Figure 4 and Fig.10 As shown, a sealing cylinder 13 extending downward to the outer circumferential surface of the cylindrical hole-shaped nozzle 21 is provided at the bottom end of the tower top 12 , and a connecting cylinder 212 rotatably connected to the suction pipe 322 is provided at the top end of the cylindrical hole-shaped nozzle 21 .

[0073] A coaxial ring gear 222 is provided on the outer circumferential surface of the connecting cylinder 212 , and a driven shaft 224 is provided at the bottom of the tower top 12 . The driven shaft 224 is connected to the rotating shaft 331 through a synchronous belt or a synchronous chain transmission. A gear 223 is provided at the bottom of the driven shaft 224 , and the gear 223 meshes with the ring gear 222 .

[0074] A closing cover is provided at the bottom of the tower top 12, and the gear ring 222 and the gear 223 are both located in the closing cover, so as to prevent the melt slurry in the blanking cavity 211 from being blocked in the gear ring 222 and the gear 223 to affect the transmission.

[0075] When the motor 221 is started, the driven shaft 224 rotates, and the gear 223 drives the gear ring 222 meshing therewith to rotate, and the gear ring 222 is fixedly connected to the connecting tube 212 at the top of the cylindrical hole-type nozzle 21, so that the connecting tube 212 drives the cylindrical hole-type nozzle 21 to rotate relative to the tower top 12.

[0076] like Figure 4 As shown, a foreign matter storage bin 14 connected to the foreign matter collecting bin 3222 in a detachable manner is provided at the top of the tower body 11 , and a foreign matter discharge outlet that can communicate with the foreign matter storage bin 14 is provided at the lower part of the inner cavity of the foreign matter collecting bin 3222 .

[0077] In order to facilitate the cleaning of foreign matter in the foreign matter collection bin 3222, a foreign matter storage bin 14 that can be connected to the foreign matter collection bin 3222 is installed on the tower top 12, so that foreign matter in the inner cavity of the foreign matter collection bin 3222 can fall into the foreign matter storage bin 14. When cleaning is required, the foreign matter storage bin 14 is disassembled from the foreign matter collection bin 3222 to clean the foreign matter in the foreign matter collection bin 3222.

[0078] The tower granulation granulation mechanism is used in the application of high-tower humic acid compound fertilizer preparation. The tower granulation granulation mechanism is used to realize the application of humic acid compound fertilizer preparation. The foreign matter blocked in the holes of the cylindrical hole-type nozzle 21 is sucked out by the cleaning mechanism.

[0079] The cylindrical perforated nozzle 21 that can prevent clogging can effectively improve the efficiency of preparing humic acid compound fertilizer and avoid the need to stop the machine for cleaning or replacing the nozzle.

[0080] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A granulation mechanism for tower granulation, comprising a tower body (11), and a spraying mechanism arranged at the top of the inner cavity of the tower body (11), the spraying mechanism having a cylindrical perforated nozzle (21) capable of rotating relative to the tower body (11), and a rotation drive component (22) for driving the cylindrical perforated nozzle (21) to rotate relative to the tower body (11), characterized in that: A cleaning mechanism is provided in the cylindrical eyelet type nozzle (21), the cleaning mechanism having an adsorption component (31) extending in the longitudinal direction, the adsorption component (31) having a suction port (311) extending in the longitudinal direction, the suction port (311) being close to the inner wall of the cylindrical eyelet type nozzle (21), the cleaning mechanism also comprising a suction component (32) for extracting air from the suction port (311), in a working state, when the cylindrical eyelet type nozzle (21) rotates relative to the cleaning mechanism, the suction port (311) sucks foreign matter blocked in the holes of the cylindrical eyelet type nozzle (21); the adsorption component (31) also having a collecting port (312) extending in the longitudinal direction, the suction port (311) The suction port (311) is connected to the collecting port (312), the diameter of the suction port (311) gradually decreases from the inner wall of the cylindrical hole-shaped nozzle (21) to the axial direction of the cylindrical hole-shaped nozzle (21), the suction component (32) has a collecting chamber (321) arranged at the bottom of the cylindrical hole-shaped nozzle (21), and the bottom of the collecting port (312) is connected to the collecting chamber (321); the adsorption component (31) also has buffer chambers (313) located on both sides of the collecting port (312), the buffer chamber (313) is closed relative to the inner chamber of the cylindrical hole-shaped nozzle (21), and the cylindrical hole-shaped nozzle (21) is rotated through the buffer chamber (313) to discharge the melt slurry remaining in the hole.

2. The granulation mechanism of tower granulation according to claim 1, characterized in that: The suction assembly (32) comprises a suction tube (322) coaxially arranged in the inner cavity of the cylindrical hole-shaped nozzle (21), and a suction transport member arranged in the suction tube (322) for sucking air upward and transporting foreign matter, and a bottom port of the suction tube (322) extends into the collection cavity (321).

3. The granulation mechanism of tower granulation according to claim 2, characterized in that: The bottom end of the suction pipe (322) is provided with a perforated pipe (3221) coaxial therewith, the bottom end of the perforated pipe (3221) extends downward and is close to the bottom end of the collecting chamber (321), the aperture of the perforated pipe (3221) is smaller than the aperture of the cylindrical eyelet-type nozzle (21), the suction delivery member comprises a rotating shaft (331) coaxially rotatably arranged in the suction pipe (322), the circumferential surface of the rotating shaft (331) is provided with a perforated spiral blade (332) coaxial therewith, and the rotating shaft (331) is drivingly connected to the rotary drive assembly (22).

4. The granulation mechanism of tower granulation according to claim 3, characterized in that: A foreign matter collecting bin (3222) is provided at the top end of the suction tube (322), a spiral blade (332) with holes extends into the foreign matter collecting bin (3222), an inclined surface is provided at the bottom of the inner cavity of the foreign matter collecting bin (3222), and the spiral blade (332) with holes slides the foreign matter sent into the foreign matter collecting bin (3222) to the lowest point of the foreign matter collecting bin.

5. The granulation mechanism of tower granulation according to claim 3, characterized in that: The tower body (11) comprises a tower top (12), the top end of a suction pipe (322) is fixedly connected to the tower top (12), a cylindrical hole-shaped nozzle (21) is coaxially rotatably arranged at the bottom of the tower top (12) relative to the perforated tube (3221), a material drop cavity (211) is arranged at the top of the cylindrical hole-shaped nozzle (21), and a feeding port (121) is arranged on the tower top (12) for feeding melt slurry into the material drop cavity (211).

6. The granulation mechanism of tower granulation according to claim 5, characterized in that: A sealing cylinder (13) extending downward to the outer circumferential surface of the cylindrical hole-shaped nozzle (21) is provided at the bottom end of the tower top (12), and a connecting cylinder (212) rotatably connected to the suction pipe (322) is provided at the top end of the cylindrical hole-shaped nozzle (21).

7. The granulation mechanism of tower granulation according to claim 4, characterized in that: A foreign matter storage bin (14) connected to the foreign matter collection bin (3222) in a detachable manner is provided at the top of the tower body (11), and a foreign matter discharge port that can communicate with the foreign matter storage bin (14) is provided at the lower part of the inner cavity of the foreign matter collection bin (3222).

8. The application of the tower granulation granulation mechanism in the preparation of high-tower fulvic acid compound fertilizer is characterized in that: The tower granulation mechanism as claimed in any one of claims 1 to 7 is used to realize the application of preparing humic acid compound fertilizer, and the foreign matter blocked in the hole of the cylindrical hole-type nozzle (21) is sucked out by the cleaning mechanism.

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