Spray granulation device for preparing manganese zinc ferrite

Abstract

The invention provides a spray granulation device for manganese zinc ferrite preparation, and relates to the technical field of manganese zinc ferrite production, the spray granulation device comprises a drying barrel, the upper end of the interior of the drying barrel is provided with a spray mechanism, and the lower end of the interior of the drying barrel is provided with a discharge pipe in a penetrating manner. The first auger is arranged in the material guiding pipe, the second auger is arranged in the material discharging pipe, the feeding and discharging efficiency is greatly improved, the first auger is supported by the fixing rod and rotates along with the material guiding pipe, materials can be rapidly and efficiently conveyed into the processing barrel, and the processing efficiency is improved. The condition that the feeding efficiency is low due to the fact that only gravity or a single conveying mode is adopted in the past is changed, the requirement of large-scale production for the feeding speed is met, the second auger can push materials to be rapidly discharged during discharging, meanwhile, the rotating rod drives the partition plate and the push plate to rotate, the discharging speed of the materials is greatly increased, and the discharging efficiency is improved. The problem that in the prior art, the material discharging speed is low is solved, and efficient production is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of manganese-zinc ferrite production, and more specifically, to a spray granulation device for producing manganese-zinc ferrite. Background Art

[0002] Manganese-zinc ferrite is a soft magnetic ferrite material with a spinel-type crystal structure. When producing manganese-zinc ferrite, a spray granulation device is often required for processing. For example, a spray granulation device for preparing high-frequency manganese-zinc ferrite granular materials proposed in the patent application No. "CN202121785442.3" has a pretreatment cylinder for containing high-frequency manganese-zinc ferrite slurry, and an ultrasonic vibration device is installed inside it to make the high-frequency manganese-zinc ferrite slurry mix evenly. The spray granulation device includes a granulation cylinder, a rotary spray head, and a gas supply system. The rotary spray head is installed at the top inside the granulation cylinder. The high-frequency manganese-zinc ferrite slurry in the pretreatment cylinder is transported to the rotary spray head by a high-pressure pump, and the rotary spray head is used to spray the high-frequency manganese-zinc ferrite slurry into the granulation cylinder in a spray form. The gas supply system is used to blow dry gas into the granulation cylinder.

[0003] However, in the above technical solution, the feeding efficiency is usually low due to relying on simple gravity or a single conveying method, which cannot meet the needs of large-scale production. At the same time, in terms of discharging, the discharging speed of the material is slow, and it is difficult to disperse evenly during discharging, resulting in the material not being able to fully contact the drying medium during the drying and granulation process, affecting the quality and efficiency of granulation. Moreover, the effect of the material colliding with the baffle and exploding into a spray state is not good, resulting in uneven particle size distribution of granulation and reducing the quality of manganese-zinc ferrite products. Therefore, we propose a spray granulation device for producing manganese-zinc ferrite to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a spray granulation device for producing manganese-zinc ferrite, which solves the problems that the feeding efficiency is usually low due to relying on simple gravity or a single conveying method, which cannot meet the needs of large-scale production. At the same time, in terms of discharging, the discharging speed of the material is slow, and it is difficult to disperse evenly during discharging, resulting in the material not being able to fully contact the drying medium during the drying and granulation process, affecting the quality and efficiency of granulation. Moreover, the effect of the material colliding with the baffle and exploding into a spray state is not good, resulting in uneven particle size distribution of granulation and reducing the quality of manganese-zinc ferrite products.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A spray granulation device for preparing manganese-zinc ferrite, including a drying barrel. At the upper end inside the drying barrel, a spraying mechanism is installed. At the lower end inside the drying barrel, a feeding pipe is installed through. At the upper and lower ends inside the drying barrel, annular fixing frames are installed. The upper and lower ends of the annular fixing frames are respectively inclined, and the inclination angles are opposite. Inside the annular fixing frames, temporary storage grooves are respectively provided. At the lower end inside the temporary storage grooves, a number of air outlet holes are respectively penetrated. At the rear end of the drying barrel, a shunt pipe is installed. At the upper and lower sides at the front end inside the shunt pipe, connecting pipes are installed through. The front ends of the connecting pipes are respectively installed through inside the temporary storage grooves. The spraying mechanism includes a processing barrel. The processing barrel is movably installed at the upper end inside the drying barrel. At the upper end inside the drying barrel, an air guide pipe is fixedly installed through. The pipe body of the air guide pipe movably penetrates through the upper end inside the processing barrel. A sealing bearing is installed between the air guide pipe and the processing barrel. In the middle inside the air guide pipe, a material guide pipe is installed through. The lower end of the material guide pipe is movably located inside the processing barrel. At the upper end inside the air guide pipe, an air inlet pipe is installed through. At the lower end inside the processing barrel, a number of discharging pipes are installed through, and the discharging pipes are all inclined.

[0006] Preferably, a lower clamping frame is installed at the upper end of the processing barrel. The pipe body of the air guide pipe movably penetrates through the inside of the lower clamping frame. At the upper end inside the drying barrel, an upper clamping frame is installed. The upper clamping frame and the lower clamping frame are clamped and connected.

[0007] Preferably, a first gear is installed on the outer side of the lower clamping frame. At the upper end on one side inside the drying barrel, a second gear is movably installed. The second gear is meshed and connected with the first gear. At the upper end of the drying barrel, a motor is installed. The output end of the motor movably penetrates through the upper end inside the drying barrel and is connected with the second gear.

[0008] Preferably, a sealing groove is provided at the lower end inside the material guide pipe. Inside the sealing groove, a sealing block is clamped and installed. At the lower end inside the sealing groove, a number of discharging grooves are penetrated.

[0009] Preferably, a movable groove is provided at the lower end inside the sealing groove. An extension frame is movably installed through between the movable groove and the sealing groove. The upper end of the extension frame is connected with the sealing block. A spring is installed between the lower end of the extension frame and the movable groove.

[0010] Preferably, a fixing rod is movably installed at the lower end inside the material guide pipe. At the upper end of the rod body of the fixing rod, a first auger is installed. The first auger is movably located inside the material guide pipe. The lower end of the rod body of the fixing rod movably penetrates through the inside of the sealing block, the extension frame and the movable groove, and is fixedly connected with the lower surface inside the processing barrel.

[0011] Preferably, a rotating rod is movably installed through the inside of each discharge pipe respectively. A sealing cover is sleeved and installed on the outer side of the pipe body of the material guide pipe located inside the drying barrel, and the upper ends of the rotating rods are movably installed through the inside of the sealing cover respectively.

[0012] Preferably, a number of limiting bumps are installed inside the drying barrel, and the gaps between the limiting bumps correspond to the discharge pipes respectively. Limiting frames are installed between the mutually adjacent limiting bumps respectively, and the rod bodies of the rotating rods are movably installed through the inside of the limiting frames respectively.

[0013] Preferably, limiting discs are installed at one ends of the rotating rods located inside the limiting frames respectively. The limiting discs are respectively snap-fitted and installed inside the limiting frames. First helical gears are installed at one ends of the rotating rods located inside the sealing cover respectively. A second helical gear is installed on the outer side of the pipe body of the material guide pipe located inside the sealing cover. The first helical gear and the second helical gear are meshed and connected with each other.

[0014] Preferably, a number of guiding inclined grooves are arranged in a circumferential array at the lower end inside each discharge pipe. The guiding inclined grooves are arranged in an inclined shape. Partition plates are installed at the lower ends of the rotating rods respectively. The partition plates and the discharge pipes overlap each other. A number of pushing plates are installed on one side of the partition plate close to the discharge pipe. Second augers are installed on the outer sides of the rod bodies of the rotating rods located inside the discharge pipes, and the second augers are movably located between the discharge pipes and the processing barrel.

[0015] 1. In the present invention, by arranging a first auger inside the material guide pipe and a second auger inside the discharge pipe, the feeding and discharging efficiency is greatly improved. Supported by the fixed rod, as the material guide pipe rotates, the first auger can quickly and efficiently convey the material into the processing barrel, changing the situation of low feeding efficiency caused by simply relying on gravity or a single conveying method in the past, meeting the feeding speed requirements of large-scale production. During discharging, the second auger can push the material to be discharged quickly. At the same time, the rotating rod drives the partition plate and the pushing plate to rotate, greatly increasing the discharging speed of the material, solving the problem of slow discharging speed of the material in the prior art, and ensuring the efficient progress of production.

[0016] 2. In the present invention, the upper and lower ends of the annular fixing frame are inclined and provided with a temporary storage groove and air outlet holes. The drying gas enters the temporary storage groove through the shunt pipe and the connecting pipe, and then is discharged from the air outlet holes, enabling the drying medium to be more evenly distributed in the drying barrel. The material can fully contact the drying medium during the falling process, ensuring the effect of drying and granulation. On the other hand, the guiding inclined grooves arranged in a circumferential array at the lower end inside the discharge pipe, as well as the partition plates and push plates on the rotating rod, change the discharge direction of the material when the rotating rod rotates. The partition plates and push plates evenly disperse the material, avoiding the situation of concentrated falling when the material is discharged. In addition, the material interacts with these structures during the discharge process, forming a better spray state effect, making the particle size distribution of granulation more uniform, and effectively improving the quality of the manganese-zinc ferrite product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is a front view structure schematic diagram of the present invention; Figure 3 is a side view structure schematic diagram of the present invention; Figure 4 is Figure 2 a three-dimensional schematic diagram of the sectional structure at A-A in Figure 5 is Figure 3 a three-dimensional schematic diagram of the sectional structure at B-B in Figure 6 is Figure 2 a three-dimensional schematic diagram of the sectional structure at C-C in; Figure 7 is Figure 4 a magnified three-dimensional structure schematic diagram at D in Figure 8 is Figure 5 a magnified three-dimensional structure schematic diagram at E in Figure 9 is Figure 6 a magnified three-dimensional structure schematic diagram at F in

[0018] In the figure: 1. Drying barrel; 2. Spray mechanism; 201. Processing barrel; 202. Lower clamping frame; 203. Upper clamping frame; 204. First gear; 205. Second gear; 206. Motor; 207. Air guide pipe; 208. Material guide pipe; 209. Air inlet pipe; 210. Sealing groove; 211. Discharge groove; 212. Sealing block; 213. Movable groove; 214. Extension frame; 215. Spring; 216. Fixed rod; 217. First auger; 218. Discharge pipe; 219. Rotating rod; 220. Second auger; 221. Guide chute; 222. Partition board; 223. Push plate; 224. Limit frame; 225. Limit disc; 226. Sealing cover; 227. First helical gear; 228. Second helical gear; 229. Limit projection; 3. Annular fixing frame; 4. Temporary storage tank; 5. Air outlet hole; 6. Connecting pipe; 7. Shunt pipe; 8. Feeding pipe. Detailed implementation mode

[0019] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] As Figures 1 to 9 shown, a spray granulation device for preparing manganese-zinc ferrite includes a drying barrel 1. A spray mechanism 2 is installed at the upper end inside the drying barrel 1. A feeding pipe 8 is installed through the lower end inside the drying barrel 1. Annular fixing frames 3 are installed at the upper and lower ends inside the drying barrel 1. The upper and lower ends of the annular fixing frames 3 are respectively inclined, and the inclination angles are opposite. Temporary storage tanks 4 are respectively arranged inside the annular fixing frames 3. A plurality of air outlet holes 5 penetrate through the lower ends inside the temporary storage tanks 4. A shunt pipe 7 is installed at the rear end of the drying barrel 1. Connecting pipes 6 are installed through the upper and lower sides at the front end inside the shunt pipe 7. The front ends of the connecting pipes 6 are respectively installed through the inside of the temporary storage tanks 4. The spray mechanism 2 includes a processing barrel 201. The processing barrel 201 is movably installed at the upper end inside the drying barrel 1. An air guide pipe 207 is fixedly installed through the upper end inside the drying barrel 1. The pipe body of the air guide pipe 207 movably penetrates through the upper end inside the processing barrel 201. A sealing bearing is installed between the air guide pipe 207 and the processing barrel 201. A material guide pipe 208 is installed through the middle inside the air guide pipe 207. The lower end of the material guide pipe 208 is movably located inside the processing barrel 201. An air inlet pipe 209 is installed through the upper end inside the air guide pipe 207. A plurality of discharge pipes 218 are installed through the lower end inside the processing barrel 201, and the discharge pipes 218 are all inclined.

[0021] As Figure 7 With Figure 8As shown in the figure, at the upper end of the processing barrel 201, a lower engaging frame 202 is installed. The body of the air guide pipe 207 is movably installed through the inside of the lower engaging frame 202. At the upper end inside the drying barrel 1, an upper engaging frame 203 is installed. The upper engaging frame 203 and the lower engaging frame 202 are engaged and connected. On the outside of the lower engaging frame 202, a first gear 204 is installed. At the upper end on one side inside the drying barrel 1, a second gear 205 is movably installed. The second gear 205 is meshed and connected with the first gear 204. At the upper end of the drying barrel 1, a motor 206 is installed. The output end of the motor 206 movably passes through the upper end inside the drying barrel 1 and is connected to the second gear 205.

[0022] The processing barrel 201 is engaged and connected with the upper engaging frame 203 at the upper end inside the drying barrel 1 through the lower engaging frame 202. The first gear 204 on the outside of the lower engaging frame 202 is meshed with the second gear 205. The output end of the motor 206 is connected to the second gear 205. When the motor 206 starts, it drives the second gear 205 to rotate, and then drives the first gear 204 and the processing barrel 201 to rotate, realizing the stable rotation of the processing barrel 201 and providing a power basis for subsequent operations such as feeding, mixing, and discharging of materials.

[0023] As Figure 7 shown, Figure 8 at the lower end inside the material guide pipe 208, a sealing groove 210 is provided. Inside the sealing groove 210, a sealing block 212 is engaged and installed. Inside the lower end of the sealing groove 210, a number of discharge grooves 211 are provided through. Inside the lower end of the sealing groove 210, a movable groove 213 is provided. An extension frame 214 is movably installed through between the movable groove 213 and the sealing groove 210. The upper end of the extension frame 214 is connected to the sealing block 212, and a spring 215 is installed between the lower end of the extension frame 214 and the movable groove 213.

[0024] At the lower end inside the material guide pipe 208, a sealing groove 210 is provided. The sealing block 212 is engaged in the sealing groove 210. At the lower end of the sealing groove 210, there are discharge grooves 211. The extension frame 214 connects the sealing block 212 and the movable groove 213. The spring 215 provides elastic force, so that when the material flows in the material guide pipe 208, the flow rate generates pressure to push the sealing block 212 downward, enabling the material to enter the processing barrel 201 through the discharge grooves 211, realizing the blanking work. The discharge efficiency can be controlled according to the flow rate of the material, ensuring that the material enters the processing barrel 201 stably and in an appropriate amount, and avoiding problems such as material accumulation or too fast or too slow feeding.

[0025] As Figures 7 to 8As shown in the figure, a fixed rod 216 is movably installed at the lower end inside the material guide pipe 208. At the upper end of the rod body of the fixed rod 216, a first auger 217 is installed. The first auger 217 is movably located inside the material guide pipe 208. The lower end of the rod body of the fixed rod 216 movably penetrates through the inside of the sealing block 212, the extension bracket 214 and the movable groove 213, and is fixedly connected to the lower surface inside the processing barrel 201.

[0026] The fixed rod 216 at the lower end inside the material guide pipe 208 supports the first auger 217. The lower end of the fixed rod 216 is fixedly connected to the lower surface inside the processing barrel 201. Thus, with the rotation of the processing barrel 201, the first auger 217 can quickly convey the material into the processing barrel 201, greatly improving the feeding efficiency, changing the situation of low feeding efficiency caused by simply relying on gravity or a single conveying method in the past, and meeting the feeding speed requirements of large-scale production.

[0027] As Figure 5 , Figure 7 and Figure 8 shown in the figure, a rotating rod 219 is respectively movably penetrated and installed inside each discharge pipe 218. A sealing cover 226 is sleeved and installed on the outer side of the pipe body of the material guide pipe 208 located inside the drying barrel 1. The upper ends of the rotating rods 219 are respectively movably penetrated and installed inside the sealing cover 226. A number of limiting bumps 229 are installed inside the drying barrel 1, and the gaps between the limiting bumps 229 respectively correspond to the discharge pipes 218. Limiting brackets 224 are respectively installed between the mutually adjacent limiting bumps 229. The rod bodies of the rotating rods 219 are respectively movably penetrated and installed inside the limiting brackets 224. Limiting discs 225 are respectively installed at one ends of the rotating rods 219 located inside the limiting brackets 224. The limiting discs 225 are respectively snap-fitted and installed inside the limiting brackets 224. First helical gears 227 are respectively installed at one ends of the rotating rods 219 located inside the sealing cover 226. A second helical gear 228 is installed on the outer side of the pipe body of the material guide pipe 208 located inside the sealing cover 226. The first helical gear 227 is meshed and connected with the second helical gear 228.

[0028] The discharge pipe 218 is movable through the rotating rod 219, and the outer side of the guide pipe 208 is sleeved with a sealing cover 226. The upper end of the rotating rod 219 is installed in the sealing cover 226. The limiting protrusion 229 and the limiting frame 224 in the drying barrel 1 limit the rotating rod 219, and also guide the material to be thrown outward by centrifugal force, so that the material moves toward the discharge pipe 218. The limiting plate 225 on the rotating rod 219 is engaged in the limiting frame 224 to limit the rotating rod 219, and then the rotating rod 219 is in the first position in the sealing cover 226. When the bevel gear 227 is meshed with the second bevel gear 228 on the material guide tube 208, as the processing barrel 201 rotates, the processing barrel 201 can drive the limit frame 224 and the rotating rod 219 to revolve, and then through the cooperation of the first bevel gear 227 and the second bevel gear 228, the rotating rod 219 and the second auger 220 are controlled to rotate, so that the second auger 220 can realize the material conveying work, ensure the stable rotation of the rotating rod 219, and make the rotation of the rotating rod 219 related to the rotation of the processing barrel 201, so as to realize the synchronous discharge action.

[0029] like Figure 8 As shown, a plurality of guide inclined grooves 221 are arranged in an orderly manner on the circumference of the inner lower end of each discharge pipe 218, and the guide inclined grooves 221 are arranged in an inclined shape. Partitions 222 are respectively installed at the lower ends of the rotating rods 219, and the partitions 222 and the discharge pipes 218 overlap with each other. A plurality of push plates 223 are installed on the side of the partitions 222 close to the discharge pipe 218, and second auger 220 is respectively installed on the outer side of the rod body of the rotating rod 219 located inside the discharge pipe 218, and the second auger 220 is movably located between the discharge pipe 218 and the processing barrel 201.

[0030] The material discharge direction is changed by guiding the chute 221, and the partition 222 and the push plate 223 disperse the material evenly to avoid the concentrated falling of the material during discharge. The material interacts with these structures during the discharge process to form a better spray state, making the particle size distribution of the granulation more uniform, and effectively improving the quality of the manganese-zinc ferrite product.

[0031] The working principle of this kind of manganese zinc ferrite system standby spray granulation device: When in use, first start the motor 206, and its output end drives the second gear 205 to rotate, and the second gear 205 meshes with the first gear 204, thereby causing the lower engaging frame 202 and the processing barrel 201 to start rotating, and then the material enters from the guide pipe 208. Since a fixed rod 216 is installed at the lower end of the guide pipe 208, the first auger 217 on the fixed rod 216 rotates when the processing barrel 201 rotates, and the material is quickly transported into the processing barrel 201. The pressure generated by the flow of the material in the guide pipe 208 pushes the sealing block 212 downward, and the material enters the processing barrel 201 through the discharge groove 211. The spring 215 can control the discharge efficiency according to the material flow rate to ensure stable and appropriate feeding of the material. The drying air and the compressed gas used to push the material to be discharged are both safe gases, which enter from the air inlet pipe 209 and enter the rotating processing barrel 201 through the fixed air guide pipe 207. The sealed bearing between the air guide pipe 207 and the processing barrel 201 ensures gas sealing to prevent leakage. Then, during the rotation of the processing barrel 201, the materials are continuously tumbled and mixed in the barrel, and at the same time, the drying gas enters the temporary storage tank 4 in the annular fixed frame 3 through the shunt pipe 7 and the connecting pipe 6, and then is discharged from the air outlet 5 and evenly distributed in the drying barrel 1, so that the materials are fully in contact with the drying medium during the falling process, ensuring the drying and granulation effect; Then, as the processing barrel 201 rotates, the rotating rod 219 in the discharge pipe 218 rotates stably under the action of the limiting protrusion 229, the limiting frame 224 and the limiting plate 225, and the first bevel gear 227 on the rotating rod 219 meshes with the second bevel gear 228 on the guide pipe 208, so that the rotating rod 219 and the second auger 220 rotate, pushing the material to move to the lower end of the discharge pipe 218, and the guide chute 221 arranged in a circular pattern at the lower end of the discharge pipe 218 changes the material discharge direction, and the partition plate 222 and the push plate 223 at the lower end of the rotating rod 219 evenly disperse the material to avoid concentrated falling. The material interacts with these structures to form a better spray state, making the granulation particle size distribution more uniform, and finally the material is discharged through the discharge pipe 8, and then the sprayed mist material can be dried by drying air to complete the granulation work, and finally the material after granulation can be discharged through the discharge pipe 8.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A spray granulation device for preparing manganese-zinc ferrite, comprising a drying barrel (1), characterized in that: At the upper end inside the drying barrel (1), a spraying mechanism (2) is installed. At the lower end inside the drying barrel (1), a feeding pipe (8) is installed through. At the upper and lower ends inside the drying barrel (1), annular fixing frames (3) are installed. The upper and lower ends of the annular fixing frame (3) are respectively inclined, and the inclination angles are opposite. Inside the annular fixing frame (3), temporary storage grooves (4) are respectively provided. At the lower end inside the temporary storage groove (4), a number of air outlet holes (5) are respectively penetrated. At the rear end of the drying barrel (1), a shunt pipe (7) is installed. At the upper and lower sides at the front end inside the shunt pipe (7), connecting pipes (6) are installed through. The front ends of the connecting pipes (6) are respectively installed through inside the temporary storage groove (4). The spraying mechanism (2) includes a processing barrel (201). The processing barrel (201) is movably installed at the upper end inside the drying barrel (1). At the upper end inside the drying barrel (1), an air guide pipe (207) is fixedly installed through. The pipe body of the air guide pipe (207) movably penetrates through the upper end inside the processing barrel (201). A sealing bearing is installed between the air guide pipe (207) and the processing barrel (201). In the middle inside the air guide pipe (207), a material guide pipe (208) is installed through. The lower end of the material guide pipe (208) is movably located inside the processing barrel (201). At the upper end inside the air guide pipe (207), an air inlet pipe (209) is installed through. At the lower end inside the processing barrel (201), a number of discharge pipes (218) are installed through, and the discharge pipes (218) are all inclined.

2. The spray granulation device for preparing manganese zinc ferrite according to claim 1, wherein: At the upper end of the processing barrel (201), a lower clamping frame (202) is installed. The pipe body of the air guide pipe (207) movably penetrates through the inside of the lower clamping frame (202). At the upper end inside the drying barrel (1), an upper clamping frame (203) is installed. The upper clamping frame (203) and the lower clamping frame (202) are clamped and connected.

3. A spray granulation device for preparing manganese-zinc ferrite according to claim 2, characterized in that: On the outer side of the lower clamping frame (202), a first gear (204) is installed. At the upper end on one side inside the drying barrel (1), a second gear (205) is movably installed. The second gear (205) is meshed and connected with the first gear (204). At the upper end of the drying barrel (1), a motor (206) is installed. The output end of the motor (206) movably penetrates through the upper end inside the drying barrel (1) and is connected with the second gear (205).

4. A spray granulation device for preparing manganese zinc ferrite according to claim 1, characterized in that: At the lower end inside the material guide pipe (208), a sealing groove (210) is provided. Inside the sealing groove (210), a sealing block (212) is installed by clamping. At the lower end inside the sealing groove (210), a number of discharge grooves (211) are penetrated.

5. A spray granulation device for preparing manganese-zinc ferrite according to claim 4, characterized in that: At the lower end inside the sealing groove (210), a movable groove (213) is provided. An extension frame (214) movably penetrates through between the movable groove (213) and the sealing groove (210). The upper end of the extension frame (214) is connected with the sealing block (212). A spring (215) is installed between the lower end of the extension frame (214) and the movable groove (213).

6. A spray granulation device for preparing manganese-zinc ferrite according to claim 1, characterized in that: A fixing rod (216) is movably installed at the lower end inside the material guiding pipe (208). At the upper end of the rod body of the fixing rod (216), a first auger (217) is installed. The first auger (217) is movably located inside the material guiding pipe (208). The lower end of the rod body of the fixing rod (216) movably penetrates through the inside of the sealing block (212), the extension frame (214), and the moving groove (213), and is fixedly connected to the lower surface inside the processing barrel (201).

7. A spray granulation device for preparing manganese-zinc ferrite according to claim 1, characterized in that: A rotating rod (219) is respectively movably penetrated and installed inside each discharge pipe (218). A sealing cover (226) is sleeved and installed on the outer side of the pipe body of the material guiding pipe (208) located inside the drying barrel (1). The upper ends of the rotating rods (219) are respectively movably penetrated and installed inside the sealing cover (226).

8. A spray granulation device for preparing manganese-zinc ferrite according to claim 7, characterized in that: A number of limiting bumps (229) are installed inside the drying barrel (1), and the gaps between the limiting bumps (229) respectively correspond to the discharge pipes (218). Limiting frames (224) are respectively installed between the mutually adjacent limiting bumps (229). The rod bodies of the rotating rods (219) are respectively movably penetrated and installed inside the limiting frames (224).

9. A spray granulation device for preparing manganese-zinc ferrite according to claim 8, characterized in that: Limiting discs (225) are respectively installed at one ends of the rotating rods (219) located inside the limiting frames (224). The limiting discs (225) are respectively snap-fitted and installed inside the limiting frames (224). First bevel gears (227) are respectively installed at one ends of the rotating rods (219) located inside the sealing cover (226). A second bevel gear (228) is installed on the outer side of the pipe body of the material guiding pipe (208) located inside the sealing cover (226). The first bevel gear (227) is meshed and connected with the second bevel gear (228).

10. A spray granulation device for preparing manganese-zinc ferrite according to claim 9, characterized in that: A number of guiding inclined grooves (221) are arranged in a circumferential and integral manner at the lower end inside each discharge pipe (218). The guiding inclined grooves (221) are inclined. Partition plates (222) are respectively installed at the lower ends of the rotating rods (219). The partition plates (222) and the discharge pipes (218) overlap each other. A number of push plates (223) are installed on one side of the partition plates (222) close to the discharge pipes (218). Second augers (220) are respectively installed on the outer sides of the rod bodies of the rotating rods (219) located inside the discharge pipes (218), and the second augers (220) are movably located between the discharge pipes (218) and the processing barrel (201).

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