Vertical efficient coating granulation reaction kettle

Abstract

The invention belongs to the technical field of coating granulation, and particularly relates to a vertical efficient coating granulation reaction kettle. Comprising a support, the support is fixedly connected with a reaction kettle, a stirring module is arranged in the reaction kettle, a material mixing barrel is fixedly connected in the reaction kettle, a discharging shell is arranged in the material mixing barrel, the material mixing barrel is rotationally connected with a material dispersing barrel, through holes are evenly distributed in the material dispersing barrel, and the discharging shell is arranged in the discharging shell. The top of the bulk material barrel is rotatably connected with a butt joint sleeve, the reaction kettle is fixedly connected with a first feeding pipe and a second feeding pipe, and the reaction kettle is fixedly connected and communicated with an air outlet pipe. Powder is diffused by means of gas, the diffused powder adheres to particles in a falling state, a layer of powder adheres to the outer portions of the particles in advance, the particles are isolated from one another in advance, the probability that the particles adhere to one another and agglomerate in the subsequent stirring process is reduced, and the uniformity degree of particle coating is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coating granulation, in particular to a vertical high-efficiency coating granulation reaction kettle. BACKGROUND

[0002] Coating granulation is a preparation technology that uniformly coats functional materials on the surface of granular materials to improve their flowability, stability, slow-release performance or give them specific chemical functions, and is widely used in the fields of material science, chemical industry, pharmaceuticals, food and agriculture, etc. According to the process principle, it is mainly divided into mechanical stirring coating, fluidized bed coating, spray coating and chemical deposition coating, etc. Among them, mechanical stirring coating becomes one of the most widely used technologies in industrial applications due to its simple operation, strong adaptability, large processing capacity and relatively low cost. This process is usually carried out in a vertical reaction kettle. Its vertical structure is beneficial to the natural falling of materials under the action of gravity, and cooperates with high-efficiency stirring devices to improve the coating efficiency and product quality, and is convenient for continuous operation and discharging, thereby significantly improving the production efficiency and batch stability.

[0003] However, the existing process usually adopts a step-by-step feeding method, i.e. the core particles are first put into the reaction kettle, and then the coating powder is added. This feeding sequence is prone to cause the core particles to aggregate with each other in the initial stage, especially in the initial stage of stirring start. The electrostatic adsorption between the particles due to friction, combined with the fact that the stirring flow field has not yet stabilized and the shear force distribution is uneven, makes it difficult for the particles to disperse quickly. Once the aggregation occurs, it will seriously hinder the full contact between the coating powder and the core particles, resulting in local over-thick coating or missed areas. This not only reduces the coating efficiency and material utilization, but also causes the uneven coating of the final product, which directly affects the functional consistency and batch stability of the product. SUMMARY

[0004] In order to overcome the shortcomings mentioned in the background art, the present application provides a vertical high-efficiency coating granulation reaction kettle.

[0005] The technical scheme is: a vertical high-efficiency coating granulation reaction kettle, comprising a support, the support is fixedly connected with a reaction kettle, a stirring module for stirring materials is arranged in the reaction kettle, a mixing barrel is fixedly connected in the reaction kettle, a discharging shell is arranged in the mixing barrel, the mixing barrel is rotatably connected with a discharging barrel, uniform distribution of through holes are arranged on the discharging barrel, the discharging barrel is located in the discharging shell, a butt joint sleeve is rotatably connected to the top of the discharging barrel, a first feeding pipe and a second feeding pipe are fixedly connected to the top of the reaction kettle, the first feeding pipe is used for injecting core particles into the discharging shell, the second feeding pipe is fixedly connected with the butt joint sleeve and is in communication, the second feeding pipe is used for pneumatically injecting coating powder into the discharging barrel, an air outlet pipe is fixedly connected with and in communication with the reaction kettle, and a discharge pipe is fixedly connected with and in communication with the bottom of the reaction kettle.

[0006] Further, the lower end of the discharge shell is fixedly connected with a bulk material dispersing net plate, the bulk material dispersing net plate is in the shape of a truncated cone, and is used for uniformly dispersing the material.

[0007] Further, the bottom of the bulk material dispersing net plate is fixedly connected with a bulk material crushing ring, the distance from the bulk material crushing ring to the inner wall of the mixing cylinder gradually decreases from the top to the bottom of the bulk material crushing ring.

[0008] Further, the bulk material dispersing cylinder is fixedly connected with an auger, the auger is located between the bulk material dispersing cylinder and the discharge shell, the auger is used for pushing the core particles to move downward, the reaction kettle is fixedly connected with a driving member, the output shaft of the driving member is fixedly connected with a rotating shaft which is in sealing rotation connection with the reaction kettle, the rotating shaft is fixedly connected with a first gear, and the bulk material dispersing cylinder is fixedly connected with a second gear which is in meshing connection with the first gear.

[0009] Further, the bulk material dispersing cylinder is slidingly connected with a blocking block, the blocking block is used for blocking the mixing cylinder, the mixing cylinder is provided with a plurality of circumferentially distributed air outlet grooves, the mixing cylinder is fixedly connected with a filter screen in the air outlet grooves, and the blocking block is provided with a driving assembly which is used for periodically unblocking the mixing cylinder.

[0010] Further, the blocking block is fixedly connected with a scraper, and the inner wall of the mixing cylinder and the plurality of filter screens are in abutment with the scraper.

[0011] Further, the driving assembly comprises a rotating cylinder, the rotating cylinder is in rotation connection with the reaction kettle, the rotating shaft is fixedly connected with a third gear, the rotating cylinder is fixedly connected with a fourth gear which is in meshing connection with the third gear, the blocking block is in rotation connection with a connecting shaft which is in spline connection with the reaction kettle, the connecting shaft is in sealing rotation and sliding connection with the butt joint sleeve, a sliding groove is arranged in the rotating cylinder, the connecting shaft is fixedly connected with a clamping block, and the clamping block is slidingly located in the sliding groove.

[0012] Further, the sliding groove is composed of a first arc-shaped groove, a vertical groove, a second arc-shaped groove and an inclined groove which are connected in a head-to-tail manner, and the degree of the central angle corresponding to the first arc-shaped groove is greater than the degree of the central angle corresponding to the second arc-shaped groove.

[0013] Further, a limiting ring is fixedly connected in the bulk material dispersing cylinder, the connecting shaft is fixedly connected with a blocking piston which is located in the bulk material dispersing cylinder, and when the blocking piston is in abutment with the limiting ring, the blocking piston is used for blocking the bulk material dispersing cylinder.

[0014] Further, the discharge shell and the mixing cylinder are in sliding connection, the connecting shaft is fixedly connected with a connecting frame, the connecting frame is fixedly connected with the discharge shell, and when the discharge shell is in abutment with the bulk material dispersing net plate, the bulk material dispersing net plate blocks the discharge shell.

[0015] The beneficial effects are: 1. The application diffuses the powder by means of gas, and the diffused powder is mutually adhered with the particles in a falling state, a layer of powder is adhered in advance on the outside of the particles, the particles are mutually isolated in advance, the probability of mutual adhesion of the particles in subsequent stirring is reduced, and the uniformity of particle coating is improved.

[0016] 2. The particles are uniformly dispersed by the bulk material net plate, the particles uniformly fall downwards, the particles are uniformly contacted with the powder, the bulk material net plate drives the bottom scrap ring to rotate, the particle agglomerates between the scrap ring and the inner wall of the reaction kettle are rubbed to be dispersed and fall downwards to be contacted with the powder.

[0017] 3. The bottom of the mixing cylinder is blocked by the blocking block, the particles and the powder are accumulated on the upside thereof, and the particles and the powder on the blocking block are adhered again by the rotation of the blocking block, so that the outside of the particles is adhered with the powder, and the probability of adhesion dead angle of the particles is reduced.

[0018] 4. When the material in the mixing cylinder enters the reaction kettle, the blocking piston and the discharging shell move downward synchronously, the blocking piston is attached to the limiting ring to block the bulk material cylinder, and the discharging shell is attached to the bulk material net plate to block the discharging shell, so that the particles and the powder cannot directly fall into the reaction kettle, and the consistency of the adhesion time of the particles and the powder is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the application; Figure 2 It is a schematic diagram of the three-dimensional structure of the reaction kettle of the application; Figure 3 It is a schematic diagram of the three-dimensional structure of the mixing cylinder of the application; Figure 4 It is a schematic diagram of the three-dimensional structure of the bulk material net plate and the scrap ring of the application; Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating shaft and the first gear of the application; Figure 6 It is a schematic diagram of the three-dimensional structure of the blocking block and the bulk material cylinder of the application; Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting shaft of the application; Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating cylinder of the application; Figure 9 It is a schematic diagram of the three-dimensional structure of the first arc-shaped groove and the second arc-shaped groove of the application.

[0020] Label: 1- support, 2- reaction kettle, 3- stirring module, 4- mixing cylinder, 5- blanking shell, 6- bulk cylinder, 7- butt joint sleeve, 8- first feeding pipe, 9- second feeding pipe, 10- gas outlet pipe, 11- discharge pipe, 201- bulk mesh plate, 202- crushed material ring, 203- auger, 204- driving piece, 205- rotating shaft, 206- first gear, 207- second gear, 301- blocking block, 302- gas outlet groove, 303- filter screen, 304- scraper, 401- rotating drum, 402- third gear, 403- fourth gear, 404- connecting shaft, 405- sliding groove, 406- clamping block, 4051- first arc-shaped groove, 4052- vertical groove, 4053- second arc-shaped groove, 4054- inclined groove, 501- limiting ring, 502- blocking piston, 503- connecting frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and examples, and it should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0022] The process makes the coated powder uniformly adhere to the surface of the core particles in the reaction kettle through high-speed stirring. However, the existing stepwise feeding method first puts in the core particles, which is easy to make them gather and form clusters in the initial stage. When the stirring starts, the particles are difficult to disperse quickly due to electrostatic adsorption and unstable flow field, which leads to agglomeration. This hinders the uniform contact of the coated powder, causes uneven coating or local loss, reduces the coating efficiency and material utilization rate, and affects the product performance consistency and batch stability. Example 1

[0023] The present embodiment discloses a vertical high-efficiency coating granulation reaction for uniformly coating particles.

[0024] As Figures 1-4 and Figure 6As shown, including a support 1, the support 1 is fixedly connected with a reaction kettle 2, the reaction kettle 2 is provided with a stirring module 3 for stirring material, the stirring module 3 is composed of a servo motor and a stirring shaft, the stirring shaft is sealingly rotatably connected to the bottom of the reaction kettle 2, the servo motor is fixedly connected to the bottom of the reaction kettle 2, the output shaft of the servo motor is fixedly connected with the stirring shaft, the reaction kettle 2 is fixedly connected with a mixing barrel 4, the mixing barrel 4 is provided with a discharging shell 5, the connecting relationship between the mixing barrel 4 and the discharging shell 5 is fixedly connected in this embodiment, the mixing barrel 4 is rotatably connected with a scattering barrel 6, the center axis of the mixing barrel 4 coincides with the center axis of the scattering barrel 6, the scattering barrel 6 is provided with uniformly distributed through holes, the scattering barrel 6 is located in the discharging shell 5, the center axis of the discharging shell 5 coincides with the center axis of the scattering barrel 6, the top of the scattering barrel 6 is rotatably connected with a butt joint sleeve 7, the top of the reaction kettle 2 is fixedly connected with a first feeding pipe 8 and a second feeding pipe 9, the first feeding pipe 8 is used for injecting core particles into the discharging shell 5, the second feeding pipe 9 is fixedly connected with the butt joint sleeve 7 and is communicated, the second feeding pipe 9 is used for pneumatically injecting coating powder into the scattering barrel 6, the reaction kettle 2 is fixedly connected and communicated with an air outlet pipe 10, the air outlet pipe 10 is used for discharging the gas carrying the moving coating powder, the bottom of the reaction kettle 2 is fixedly connected and communicated with a discharge pipe 11, the discharge pipe 11 is used for discharging the coated core particles.

[0025] As Figure 3 and Figure 4As shown, the core granules falling from the discharging shell 5 are uniformly dispersed downward through the core granule dispersing plate 201, so that the core granules are uniformly dispersed downward under the action of the core granule dispersing plate 201, thereby reducing the probability of aggregation of the core granules. The bottom of the core granule dispersing plate 201 is fixedly connected with a broken granule ring 202, and the distance from the broken granule ring 202 to the inner wall of the mixing cylinder 4 gradually decreases from the top to the bottom. The broken granule ring 202 can intercept the agglomerates of the core granules between the broken granule ring 202 and the inner wall of the reaction kettle 2, and the agglomerates are gradually dispersed under the rubbing force of the broken granule ring 202, and finally fall downward along the gap between the broken granule ring 202 and the reaction kettle 2. The outer part of the broken granule ring 202 can be provided with a protrusion for increasing the rubbing force of the broken granule ring 202 on the agglomerates. The discharging cylinder 6 is fixedly connected with an auger 203, and the auger 203 is located between the discharging cylinder 6 and the discharging shell 5. The auger 203 is used to push the core granules to move downward, thereby reducing the probability of blockage of the core granules between the discharging cylinder 6 and the discharging shell 5. The reaction kettle 2 is fixedly connected with a driving member 204, and the driving member 204 is a servo motor. The output shaft of the driving member 204 is fixedly connected with a rotating shaft 205 which is sealingly and rotatably connected with the reaction kettle 2. The rotating shaft 205 is fixedly connected with a first gear 206. The discharging cylinder 6 is fixedly connected with a second gear 207 which is engaged with the first gear 206. The output shaft of the driving member 204 rotates the discharging cylinder 6 through the rotating shaft 205, the first gear 206 and the second gear 207. The discharging cylinder 6 drives the uniformly distributed through holes, the core granule dispersing plate 201 and the auger 203 to rotate synchronously.

[0026] Working principle: When core particles need to be coated, the operator begins to inject the core particles into the first feed pipe 8. The core particles (hereinafter referred to as particles) fall into the discharge shell 5 along the first feed pipe 8. The particles in the discharge shell 5 move downwards along the gap with the dispersing cylinder 6 and fall onto the dispersing mesh plate 201. The particles roll downwards along the dispersing mesh plate 201, allowing them to pass through the dispersing mesh plate 201 and fall evenly downwards. Finally, they fall into the bottom of the reaction vessel 2 through the mixing cylinder 4. While the particles are being injected along the first feed pipe 8, gas pushes the coating powder (hereinafter referred to as powder) into the second feed pipe 9. The gas carries the powder along the second feed pipe 9 to the dispersing cylinder 6. The powder is discharged through the evenly distributed through holes on the bulk material cylinder 6 and moves downward along the bulk material cylinder 6. The powder passes through the through holes on the bulk material cylinder 6 and enters the mixing cylinder 4, so that the powder adheres to each other with the falling particles. This pre-adheres a layer of powder on the outside of the particles, isolating them from each other and reducing the probability of particles adhering and agglomerating during subsequent mixing. This improves the uniformity of particle coating. After the particles and powder are fed, the feeding of particles and powder is stopped, and then the mixing module 3 is turned on to start the powder coating of the particles. After the particle coating is completed, the mixing module 3 is turned off, and the coated particles are discharged from the discharge pipe 11. When it is necessary to coat the particles again, the above steps are repeated.

[0027] When the feeding of granules and powder begins, the drive unit 204 is activated, and the output shaft of the drive unit 204 drives the rotating shaft 205 to rotate counterclockwise (to... Figure 2 (Top view illustration) The rotating shaft 205 drives the bulk material cylinder 6 to rotate clockwise via the first gear 206 and the second gear 207, causing the auger 203 on the bulk material cylinder 6 to rotate synchronously. The auger 203 pushes the particles downwards and into the bulk material mesh plate 201, reducing the probability of particle blockage. At the same time, the bulk material cylinder 6 drives the uniformly distributed through holes on it to rotate, continuously changing the position of the powder entering the mixing cylinder 4, and improving the uniformity of particle-powder adhesion.

[0028] The particles may clump together due to compression or moisture. The clumps cannot pass through the material distribution mesh 201 and fall downwards. They eventually roll along the material distribution mesh 201 to the space between the crushing ring 202 and the inner wall of the reactor 2. At this time, the material distribution cylinder 6 will drive the material distribution mesh 201 to rotate synchronously, which in turn drives the crushing ring 202 at the bottom to rotate synchronously. The crushing ring 202 rotates and rubs the clumps of particles, gradually dispersing the particles and causing them to fall downwards along the gap between the crushing ring 202 and the reactor 2, thereby improving the uniformity of particle and powder adhesion. Example 2

[0029] This embodiment discloses a vertical high-efficiency coating granulation reaction, which is a further improvement on the one in Example 1.

[0030] As Figure 3 , Figures 5-7 shown, the bulk cylinder 6 is slidingly connected with a blocking block 301, the bulk cylinder 6 can drive the blocking block 301 to rotate synchronously, the blocking block 301 is used for blocking the bottom of the mixing cylinder 4, so that the particles and the powder are accumulated on the upside thereof, the blocking block 301 is in the shape of a circular truncated cone, is used for guiding the particles and the powder thereon downward, and accelerates the rate of the particles and the powder entering the reaction kettle 2, the circular truncated cone slope of the blocking block 301 is fixedly connected with vertically distributed vertical shafts, is used for driving the particles and the powder thereon to rotate together, the sidewall of the mixing cylinder 4 is provided with circumferentially distributed air outlet grooves 302, the mixing cylinder 4 is fixedly connected with filter screens 303 in the air outlet grooves 302, the filter screens 303 are used for intercepting the powder, preventing a large amount of the powder in a floating state from entering the reaction kettle 2, the blocking block 301 is provided with a driving assembly for driving the blocking block 301 to periodically remove the blocking of the mixing cylinder 4, the blocking block 301 is fixedly connected with a scraper 304, the inner wall of the mixing cylinder 4 and the filter screens 303 are attached to the scraper 304, the blocking block 301 drives the scraper 304 to rotate synchronously, so that the scraper 304 scrapes off the powder adhered to the filter screens 303.

[0031] As Figure 2 , Figures 5-7As shown, the driving assembly comprises a rotating drum 401, which is rotationally connected to the top of the reaction kettle 2, the rotating shaft 205 is fixedly connected with a third gear 402, the rotating drum 401 is fixedly connected with a fourth gear 403 engaged with the third gear 402, the rotating shaft 205 rotates counterclockwise to drive the rotating drum 401 to rotate clockwise through the third gear 402 and the fourth gear 403, the pitch circle diameter of the third gear 402 is smaller than that of the fourth gear 403, and the pitch circle diameter of the first gear 206 is larger than that of the second gear 207, so that when the rotating shaft 205 drives the third gear 402 and the first gear 206 to rotate one circle, the second gear 207 rotates several circles, and the fourth gear 403 rotates less than one circle, so that the rotating drum 401 rotates one circle, and the bulk cylinder 6 can rotate several circles in the process, the blocking block 301 is rotationally connected with a connecting shaft 404 spline-connected with the reaction kettle 2, the connecting shaft 404 is sealingly rotationally and slidingly connected with the butt joint sleeve 7, the rotating drum 401 is provided with a sliding groove 405, the connecting shaft 404 is fixedly connected with a clamping block 406, the clamping block 406 slides in the sliding groove 405, the sliding groove 405 is composed of a first arc-shaped groove 4051, a vertical groove 4052, a second arc-shaped groove 4053 and an inclined groove 4054 in sequence, when the clamping block 406 slides along the first arc-shaped groove 4051, the height of the connecting shaft 404 remains unchanged, at this moment, the blocking block 301 is in a blocking state to the bottom of the mixing cylinder 4, when the clamping block 406 slides along the vertical groove 4052 under the gravity, the height of the connecting shaft 404 is lowered, and the blocking block 301 is in a gradually opening state to the bottom of the mixing cylinder 4, when the clamping block 406 slides along the second arc-shaped groove 4053, the height of the connecting shaft 404 remains unchanged, at this moment, the blocking block 301 is in an opening state to the bottom of the mixing cylinder 4, when the clamping block 406 slides along the inclined groove 4054, the height of the connecting shaft 404 rises, at this moment, the blocking block 301 is in a gradually blocking state to the bottom of the mixing cylinder 4, the central angle corresponding to the first arc-shaped groove 4051 is larger than that of the second arc-shaped groove 4053, so that the blocking block 301 driven by the connecting shaft 404 blocks the mixing cylinder 4 for a longer time than it is opened, in the initial state, the clamping block 406 is located in the first arc-shaped groove 4051, that is, the connecting shaft 404 drives the blocking block 301 to block the bottom of the mixing cylinder 4.

[0032] As Figures 7-9As shown, the limiting ring 501 is fixedly connected in the bulk cylinder 6, the limiting ring 501 is located above the uniformly distributed through holes on the bulk cylinder 6, the connecting shaft 404 is fixedly connected with the blocking piston 502 located in the bulk cylinder 6, the outer diameter of the blocking piston 502 is smaller than the inner diameter of the bulk cylinder 6, the inner diameter of the limiting ring 501 is smaller than the outer diameter of the blocking piston 502, the connecting shaft 404 can drive the blocking piston 502 to move downward synchronously, in the initial state, the blocking piston 502 is located above the limiting ring 501, when the blocking piston 502 is attached to the limiting ring 501, the blocking piston 502 is used to block the bulk cylinder 6, and the feeding of the coating powder is paused, the discharging shell 5 is in sliding connection with the mixing cylinder 4 in an up-down mode, the connecting shaft 404 is fixedly connected with the connecting frame 503, the connecting frame 503 is fixedly connected with the discharging shell 5, when the connecting shaft 404 moves downward, the discharging shell 5 can be driven to move downward synchronously through the connecting frame 503, when the discharging shell 5 is attached to the bulk mesh plate 201, the bulk mesh plate 201 blocks the discharging shell 5, and the discharging of the core particles is paused, in the initial state, the discharging shell 5 is located above the bulk mesh plate 201, and the distance between the limiting ring 501 and the blocking piston 502 is the same as the closest distance between the discharging shell 5 and the bulk mesh plate 201.

[0033] Working principle: during the period that the particles drop along the mixing cylinder 4 and adhere to the powder, the blocking block 301 is in a blocking state at the bottom of the mixing cylinder 4 initially, after the particles adhere to the powder, the particles and the powder drop onto the blocking block 301, and at the same time, the blocking block 301 is driven to rotate synchronously during the rotation of the bulk cylinder 6, so that the vertical shaft on the blocking block 301 stirs the particles and the powder accumulated thereon, so that the particles and the powder adhere again, improving the uniformity of the adhesion of the particles and the powder, and at the same time, during the blocking period of the mixing cylinder 4, after the gas carrying the powder enters the mixing cylinder 4, the gas enters the reaction kettle 2 along the gas outlet grooves 302, and the powder is blocked inside the mixing cylinder 4 by the filter screen 303, and at the same time, the scraper 304 is driven to rotate when the blocking block 301 rotates, so that the scraper 304 scrapes off the powder attached to the mixing cylinder 4 and the filter screen 303 downward, so that the powder falls onto the blocking block 301, thereby avoiding that the powder on the filter screen 303 adheres too much to block the gas discharge.

[0034] During the clockwise rotation of the dispersing barrel 6 driven by the rotating shaft 205 through the first gear 206 and the second gear 207, the rotating shaft 205 drives the rotating drum 401 to rotate clockwise synchronously through the fourth gear 403 and the third gear 402, the rotating drum 401 drives the inner chute 405 to rotate, the rotating drum 401 drives the connecting shaft 404 to move downward periodically through the chute 405 and the clamping block 406, the connecting shaft 404 drives the blocking block 301 to move downward synchronously, so that the blocking block 301 unblocks the mixing barrel 4, at this moment, the particles and the powder accumulated on the blocking block 301 start to fall downward into the reaction kettle 2, at the same time, the connecting shaft 404 drives the blocking piston 502 to move downward, the blocking piston 502 is in close contact with the limiting ring 501, so that the blocking piston 502 blocks the dispersing barrel 6, and the powder injection is stopped, at the same time, the connecting shaft 404 drives the discharging shell 5 to move downward through the connecting frame 503, so that the bottom of the discharging shell 5 is in close contact with the dispersing screen plate 201, the discharging shell 5 is blocked, so that the particles cannot move downward, by driving the blocking piston 502 and the discharging shell 5 to move downward synchronously when the blocking block 301 unblocks the mixing barrel 4, the dispersing barrel 6 and the discharging shell 5 are blocked, so that the particles and the powder cannot directly fall into the reaction kettle 2, and the consistency of the adhesion time of the particles and the powder is improved.

[0035] During the whole discharging process of the particles and the powder, the rotating drum 401 drives the connecting shaft 404 to reset upward periodically through the chute 405 and the clamping block 406, so that the connecting shaft 404 drives the blocking block 301 to block the mixing barrel 4 again, at the same time, the connecting shaft 404 drives the blocking piston 502 and the discharging shell 5 to move upward, so that the dispersing barrel 6 and the discharging shell 5 are unblocked, and the particles and the powder continue to mix, until the material mixing is completed, and the driving member 204 is closed.

[0036] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A vertical high-efficiency coating granulation reaction kettle, comprising a support (1), the support (1) is fixedly connected with a reaction kettle (2), a stirring module (3) for stirring materials is arranged in the reaction kettle (2), characterized in that, The reaction kettle (2) is fixedly connected with a mixing barrel (4), the mixing barrel (4) is provided with a discharging shell (5), the mixing barrel (4) is rotatably connected with a scattering barrel (6), the scattering barrel (6) is provided with uniformly distributed through holes, the scattering barrel (6) is located in the discharging shell (5), and the top of the scattering barrel (6) is rotatably connected with a butt joint sleeve (7).

2. The vertical high-efficiency coated granulation reaction kettle according to claim 1, characterized in that, The top of the reaction kettle (2) is fixedly connected with a first feeding pipe (8) and a second feeding pipe (9), the first feeding pipe (8) is used for injecting core particles into the discharging shell (5), the second feeding pipe (9) is fixedly connected and communicated with the butt joint sleeve (7), the second feeding pipe (9) is used for pneumatically injecting coating powder into the scattering barrel (6), the reaction kettle (2) is fixedly connected and communicated with a gas outlet pipe (10), and the bottom of the reaction kettle (2) is fixedly connected and communicated with a discharge pipe (11).

3. The vertical high-efficiency coated granulation reaction kettle according to claim 2, characterized in that, The bottom of the scattering barrel (6) is fixedly connected with a scattering mesh plate (201), the scattering mesh plate (201) is in the shape of a truncated cone and is used for uniformly dispersing materials.

4. The vertical high-efficiency coated granulation reaction kettle according to claim 3, characterized in that, The bottom of the scattering mesh plate (201) is fixedly connected with a crushing ring (202), and the distance from the crushing ring (202) to the inner wall of the mixing barrel (4) gradually decreases from the top to the bottom of the crushing ring (202).

5. The vertical high-efficiency coated granulation reaction kettle according to claim 4, characterized in that, The scattering barrel (6) is fixedly connected with an auger (203), the auger (203) is located between the scattering barrel (6) and the discharging shell (5), the auger (203) is used for pushing the core particles to move downward, the reaction kettle (2) is fixedly connected with a driving member (204), an output shaft of the driving member (204) is fixedly connected with a rotating shaft (205) that is sealingly and rotatably connected with the reaction kettle (2), the rotating shaft (205) is fixedly connected with a first gear (206), and the scattering barrel (6) is fixedly connected with a second gear (207) that is engaged with the first gear (206).

6. The vertical high-efficiency coated granulation reaction kettle according to claim 5, characterized in that, The scattering barrel (6) is slidingly connected with a blocking block (301), the blocking block (301) is used for blocking the mixing barrel (4), the mixing barrel (4) is provided with circumferentially distributed gas outlet grooves (302), the mixing barrel (4) is fixedly connected with filter screens (303) in the gas outlet grooves (302), and the blocking block (301) is provided with a driving assembly that is used for periodically unblocking the mixing barrel (4). The blocking block (301) is fixedly connected with a scraper (304), and the inner wall of the mixing barrel (4) and the filter screens (303) are attached to the scraper (304).

7. The vertical high-efficiency coated granulation reaction kettle according to claim 6, characterized in that, The driving assembly comprises a rotating drum (401) rotatably connected in the reaction kettle (2), the rotating shaft (205) is fixedly connected with a third gear (402), the rotating drum (401) is fixedly connected with a fourth gear (403) engaged with the third gear (402), the blocking block (301) is rotatably connected with a connecting shaft (404) splined with the reaction kettle (2), the connecting shaft (404) is sealingly rotatably and slidingly connected with the butt joint sleeve (7), the rotating drum (401) is provided with a sliding groove (405), the connecting shaft (404) is fixedly connected with a clamping block (406) sliding in the sliding groove (405).

8. The vertical high-efficiency coated granulation reaction kettle according to claim 7, characterized in that, The sliding groove (405) is composed of a first arc-shaped groove (4051), a vertical groove (4052), a second arc-shaped groove (4053) and an inclined groove (4054) connected in sequence, the first arc-shaped groove (4051) corresponds to a central angle with a degree greater than that of the second arc-shaped groove (4053).

9. The vertical high-efficiency coated granulation reaction kettle according to claim 7, characterized in that, The dispersion drum (6) is fixedly connected with a limiting ring (501) therein, the connecting shaft (404) is fixedly connected with a blocking piston (502) in the dispersion drum (6), when the blocking piston (502) is attached to the limiting ring (501), the blocking piston (502) is used for blocking the dispersion drum (6).

10. The vertical high-efficiency coated granulation reaction kettle according to claim 9, characterized in that, The discharging shell (5) and the mixing drum (4) are slidingly connected, the connecting shaft (404) is fixedly connected with a connecting frame (503), the connecting frame (503) is fixedly connected with the discharging shell (5), when the discharging shell (5) is attached to the dispersion screen plate (201), the dispersion screen plate (201) blocks the discharging shell (5).

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