Anti-blocking feeding equipment for rare earth powder preparation

Abstract

The application discloses a rare earth powder preparation anti-blocking feeding equipment, and belongs to the technical field of rare earth powder preparation, which comprises a mounting frame and a crusher body; a crushed material mechanism for re-crushing the particles whose particle size is still larger than the requirement after being crushed by the crusher body is installed at the left end of the mounting frame; a second sprocket chain conveyor for conveying raw materials is installed at the upper end of the rear side of the mounting frame; an iron block multi-stage adsorption mechanism for removing the iron in the material is connected with the second sprocket chain conveyor; the crushed material mechanism comprises a crushed material backflow assembly and an automatic unlocking assembly; the crushed material backflow assembly for screening the particles larger than the requirement and backflow is installed at the left end of the mounting frame; the automatic unlocking assembly for controlling the feeding and discharging of the crushed material backflow assembly is connected with the crushed material backflow assembly. Through the above manner, the application can realize the one-time screening of the crushed particles, the automatic backflow of the particles with the particle size being too large for the secondary crushing, and the improvement of the automation degree of the equipment.

Description

Technical Field

[0001] This invention relates to the field of rare earth powder preparation technology, specifically to a rare earth powder preparation standby anti-clogging feeding device. Background Technology

[0002] Rare earth polishing powder is made primarily of cerium-based rare earth oxides. It is an intermediate material after the calcination process of rare earth polishing powder. It is refined and graded by a special pulverizing equipment with an inner lining to prevent contamination. It can precisely control the particle size, morphology and impurity content of the powder. It has both high grinding and cutting force and low scratch characteristics, making it a core raw material for precision polishing applications such as optical glass, display panels, and sapphire substrates.

[0003] Chinese patent CN118558393B discloses a four-roll crusher comprising: a support rod fixedly installed on the top edge of one side of the crusher; a support frame disposed on the outer surface of the crusher; a conveyor belt movably sleeved on the outer surface of the support frame; a rotating rod disposed on the inner wall of the crusher and movably sleeved on the inner wall of the top of the support frame; and a support sleeve plate movably sleeved on the outer surface of the rotating rod and located on the outer wall of the support frame. When this device is in use, it works with a hydraulic telescopic rod to pull back an auxiliary limiting plate sleeved on one end of the tensioning roller. Since the two ends of the support sleeve plate are respectively sleeved on the surfaces of the rotating rod and the tensioning roller, and the two ends of the tensioning roller are not fixed to the surface of the external equipment, and the length of the support sleeve plate remains unchanged, when the hydraulic telescopic rod retracts, it will stretch and move the tensioning roller towards the support limiting plate. However, this device still has the following problems. The equipment lacks a reflux structure during use, and the crushed particles that do not meet the standards need to be manually collected and put back into the crusher for secondary crushing, resulting in low efficiency.

[0004] Based on this, the present invention designs a backup anti-clogging feeding device for rare earth powder to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a rare earth powder backup anti-clogging feeding device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A rare earth powder preparation anti-clogging feeding device includes a mounting frame and a crusher body; A crushing mechanism for re-crushing particles whose size is still larger than required after the crusher body has been crushed is installed on the left end of the mounting frame. The second sprocket chain conveyor for conveying raw materials is installed at the upper rear end of the mounting frame; The multi-stage adsorption mechanism for removing iron from the inside of materials is connected to the second sprocket chain conveyor. The crushing mechanism includes a crushing return component and an automatic unlocking component; the crushing return component, which is used to screen and return particles larger than required, is installed at the left end of the mounting frame; the automatic unlocking component, which is used to control the feeding and discharging of the crushing return component, is connected to the crushing return component. Furthermore, the material return assembly includes a first filter screen, a first sprocket and chain conveyor, and return plates; the first filter screen is fixedly installed on the lower inner wall of the crusher body; the return port is opened on the left inner wall of the crusher body, and the return port is located to the left of the first filter screen; the first sprocket and chain conveyor is fixedly installed on the mounting bracket on the left side of the crusher body; multiple return plates are evenly distributed at the output end of the first sprocket and chain conveyor; the return plates are rotatably connected to the output end of the first sprocket and chain conveyor; each return plate has a stop fixedly installed at the shaft connected to the first sprocket and chain conveyor; the first discharge port is opened on the left side wall of the crusher body above the return port; Furthermore, the automatic unlocking component includes a limiting slider and a pin; a limiting slider is distributed at both the front and rear ends of each return plate; the limiting slider is fixedly connected to the output end of the first sprocket chain conveyor; limiting grooves are provided on both the front and rear housings of the first sprocket chain conveyor; the limiting slider is slidably connected to the limiting groove; each limiting slider is fixedly connected to a pin. Furthermore, the limiting slide is divided into a fixed section and an unlocking section; the unlocking section is located above the fixed section, and the distance between the unlocking section and the return plate is greater than the distance between the fixed section and the return plate; the fixed section and the unlocking section are smoothly connected. Furthermore, the multi-stage adsorption mechanism for iron blocks includes a primary adsorption component and a secondary adsorption component; the primary adsorption component for adsorbing iron blocks inside the raw material is installed on the second sprocket chain conveyor; the secondary adsorption component for adsorbing iron particles after crushing by the crusher body is installed on the crusher body. Furthermore, the primary adsorption assembly includes a primary adsorption drive assembly and a material turning assembly; the primary adsorption drive assembly for primary adsorption of raw materials is installed on the second sprocket chain conveyor; the material turning assembly for turning the raw materials conveyed by the second sprocket chain conveyor is connected to the primary adsorption drive assembly. Furthermore, the primary adsorption drive assembly includes an iron separator, a linkage shaft, a first helical gear, a second helical gear, and a second rotating shaft; the iron separator is fixedly connected to the housing of the second sprocket chain conveyor; one rotating shaft of the iron separator is fixedly connected to the linkage shaft; the linkage shaft is fixedly connected to the first helical gear; the first helical gear and the second helical gear are meshed; the second helical gear is fixedly connected to the second rotating shaft; and the second rotating shaft is rotatably connected to the housing of the second sprocket chain conveyor. Furthermore, the material-turning assembly includes a first reciprocating screw, a first limiting rod, a reciprocating moving block, and a material-turning tooth; two first reciprocating screws, distributed left and right, are fixedly connected at their near ends; of the two first reciprocating screws at their far ends, one is rotatably connected to the housing of the second sprocket chain conveyor, and the other is fixedly connected to the second rotating shaft; the inner walls of the two reciprocating moving blocks are slidably connected to the threaded grooves of one of the first reciprocating screws via rotatably connected sliders; multiple first limiting rods are fixedly connected to the housing of the second sprocket chain conveyor; the reciprocating moving blocks are slidably connected to the first limiting rods; and a material-turning tooth is fixedly installed at the lower end of each of the two reciprocating moving blocks. Furthermore, the two sets of secondary adsorption components are symmetrically distributed from left to right; The secondary adsorption assembly includes a third rotating shaft, adsorption rods, an iron storage bin, and a first motor. The third rotating shaft is rotatably connected to the front and rear side walls of the crusher body. The first motor is fixedly connected to the outer shell of the crusher body. The output end of the first motor is fixedly connected to the third rotating shaft. Multiple sets of adsorption rods are evenly spaced on the third rotating shaft, and each set of adsorption rods includes multiple adsorption rods arranged in a circumferential array. The adsorption rods are fixedly connected to the third rotating shaft. Multiple electromagnets are fixedly installed on the adsorption rods. The iron storage bin is fixedly connected to the inner wall of the crusher body. Multiple first clearance grooves are provided on the side of the iron storage bin near the third rotating shaft to avoid the adsorption rods. The lower side wall of the iron storage bin is higher at the rear and lower at the front, and a discharge port for removing iron filings is provided on the front side of the iron storage bin.

[0007] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention can realize the one-time screening of crushed particles and automatically return particles with excessive particle size for secondary crushing, thereby improving the automation level of the equipment. 2. This invention can also automatically turn the raw materials during iron removal, thereby increasing the iron particle removal rate and improving product purity. 3. The present invention can also achieve secondary iron removal after crushing, which removes iron particles in the raw material that cannot be adsorbed due to large particle encapsulation, thereby further improving the purity of the product. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0009] Figure 1 This invention relates to a three-dimensional anti-clogging feeding device for rare earth powder production. Figure 1 ; Figure 2This is a front view of a rare earth powder preparation anti-clogging feeding device according to the present invention; Figure 3 This invention relates to a three-dimensional anti-clogging feeding device for rare earth powder production. Figure 2 ; Figure 4 This invention relates to a partial three-dimensional anti-clogging feeding device for rare earth powder production. Figure 1 ; Figure 5 This invention relates to a partial three-dimensional anti-clogging feeding device for rare earth powder production. Figure 2 ; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 5 Enlarged view of point B in the middle.

[0010] The labels in the diagram represent: 1. Mounting frame; 2. Crushing mechanism; 22. Crushing return assembly; 221. First filter screen; 222. Return port; 223. First sprocket chain conveyor; 224. Return plate; 225. First discharge port; 226. Stop block; 23. Automatic unlocking assembly; 231. Limiting slide; 2311. Fixed section; 2312. Unlocking section; 232. Limiting slider; 233. Pin shaft; 3. Multi-stage adsorption mechanism for iron blocks; 31. Primary adsorption assembly; 31 1. Iron separator; 312. Linkage shaft; 313. First helical gear; 314. Second helical gear; 315. Second rotating shaft; 316. First reciprocating screw; 317. First limiting rod; 318. Reciprocating moving block; 319. Tilting tooth; 32. Secondary adsorption assembly; 321. Third rotating shaft; 322. Adsorption rod; 323. First clearance groove; 324. Iron storage bin; 325. First motor; 4. Second sprocket chain conveyor; 5. Crusher body. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0012] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0013] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A rare earth powder preparation anti-clogging feeding device includes a mounting frame 1 and a crusher body 5; The crushing mechanism 2, which is used to recycle particles whose particle size is still larger than required after crushing the crusher body 5, is installed on the left end of the mounting frame 1. The second sprocket chain conveyor 4, used for conveying raw materials, is installed at the upper rear end of the mounting frame 1; The multi-stage adsorption mechanism 3 for removing iron from the inside of materials is connected to the second sprocket chain conveyor 4. The crushing mechanism 2 includes a crushing return component 22 and an automatic unlocking component 23; the crushing return component 22, which is used to screen and return particles larger than required, is installed at the left end of the mounting frame 1; the automatic unlocking component 23, which is used to control the feeding and discharging of the crushing return component 22, is connected to the crushing return component 22.

[0014] In this invention, after the operator starts the equipment, the second sprocket chain conveyor 4 conveys the raw material, and the multi-stage iron block adsorption mechanism 3 performs preliminary iron removal on the raw material in the second sprocket chain conveyor 4. Then, the raw material is conveyed to the crusher body 5 through the second sprocket chain conveyor 4 for crushing. The crushed raw material undergoes secondary iron removal through the multi-stage iron block adsorption mechanism 3. Powder that meets the particle size is screened by the crushing mechanism 2 and output from the lower end of the crusher body 5. Powder or particles that do not meet the particle size enter the crushing return component 22 and are then controlled by the automatic unlocking component 23 to re-enter the crusher body 5 for crushing.

[0015] Example 2: In some embodiments, such as Figures 1-7 As shown, in a preferred embodiment of the present invention, the crushed material return assembly 22 includes a first filter screen 221, a first sprocket and chain conveyor 223, and return plates 224; the first filter screen 221 is fixedly installed on the lower inner wall of the crusher body 5; the return port 222 is opened on the left inner wall of the crusher body 5, and the return port 222 is located to the left of the first filter screen 221; the first sprocket and chain conveyor 223 is fixedly installed on the mounting bracket 1 on the left side of the crusher body 5; multiple return plates 224 are evenly distributed at the output end of the first sprocket and chain conveyor 223; the return plates 224 are rotatably connected to the output end of the first sprocket and chain conveyor 223; each return plate 224 has a stop block 226 fixedly installed at the shaft connected to the first sprocket and chain conveyor 223; the first discharge port 225 is opened on the left side wall of the crusher body 5 above the return port 222; The automatic unlocking component 23 includes a limiting slider 232 and a pin 233; a limiting slider 232 is distributed at both the front and rear ends of each return plate 224; the limiting slider 232 is fixedly connected to the output end of the first sprocket chain conveyor 223; a limiting groove 231 is provided on both the front and rear side housings of the first sprocket chain conveyor 223; the limiting slider 232 is slidably connected to the limiting groove 231; each limiting slider 232 is fixedly connected to a pin 233. The limiting slide 231 is divided into a fixed section 2311 and an unlocking section 2312; the unlocking section 2312 is located on the upper side of the fixed section 2311, and the distance between the unlocking section 2312 and the return plate 224 is greater than the distance between the fixed section 2311 and the return plate 224; the fixed section 2311 and the unlocking section 2312 are smoothly connected.

[0016] In this invention, after the operator starts the equipment, the second sprocket chain conveyor 4 transports the raw material. The multi-stage iron block adsorption mechanism 3 performs preliminary iron removal on the raw material in the second sprocket chain conveyor 4. Then, the raw material is transported to the crusher body 5 for crushing via the second sprocket chain conveyor 4. The crushed raw material undergoes secondary iron removal via the multi-stage iron block adsorption mechanism 3. Powder that meets the particle size requirement is screened by the first filter screen 221 and output from the lower end of the crusher body 5. Powder or particles that do not meet the particle size requirement are screened by the first filter screen 221 and enter the return port 222 from the lower left side of the first filter screen 221. Then, they fall onto the return plate 224. When the limiting slider 232 is within the fixed section 2311, the limiting slider 232 is closer to the return plate. 224. Pin 233 blocks the rotation of return plate 224, so that when return plate 224 is located on the left side of first sprocket chain conveyor 223 and catches particles falling from return port 222, its left side is inclined upward, thus preventing particles from slipping. When the left side of return plate 224 passes the first discharge port 225, limit slider 232 enters unlocking section 2312. Limit slider 232 drives pin 233 away and no longer blocks the rotation of return plate 224. The rotation of return plate 224 is blocked by stop block 226. At this time, return plate 224 is inclined downward on the right side, so that the particles on return plate 224 fall into crusher body 5 through first discharge port 225 for further crushing. Then, first sprocket chain conveyor 223 drives return plate 224 to continue to rotate.

[0017] Example 3: In some embodiments, such as Figures 1-7 As shown, in a preferred embodiment of the present invention, the multi-stage adsorption mechanism 3 for iron blocks includes a primary adsorption component 31 and a secondary adsorption component 32; the primary adsorption component 31 for adsorbing iron blocks inside the raw material is installed on the second sprocket chain conveyor 4; the secondary adsorption component 32 for adsorbing iron particles after crushing by the crusher body 5 is installed on the crusher body 5. The primary adsorption component 31 includes a primary adsorption drive component and a material turning component; the primary adsorption drive component for primary adsorption of raw materials is installed on the second sprocket chain conveyor 4; the material turning component for turning the raw materials conveyed by the second sprocket chain conveyor 4 is connected to the primary adsorption drive component. The primary adsorption drive assembly includes an iron separator 311, a linkage shaft 312, a first helical gear 313, a second helical gear 314, and a second rotating shaft 315. The iron separator 311 is fixedly connected to the housing of the second sprocket and chain conveyor 4. One rotating shaft of the iron separator 311 is fixedly connected to the linkage shaft 312. The linkage shaft 312 is fixedly connected to the first helical gear 313. The first helical gear 313 is meshed with the second helical gear 314. The second helical gear 314 is fixedly connected to the second rotating shaft 315. The second rotating shaft 315 is rotatably connected to the housing of the second sprocket and chain conveyor 4. The material-turning assembly includes a first reciprocating screw 316, a first limiting rod 317, a reciprocating moving block 318, and a turning tooth 319. Two first reciprocating screws 316, distributed left and right, are fixedly connected at their closest ends. Of the two first reciprocating screws 316 at their furthest ends, one is rotatably connected to the housing of the second sprocket and chain conveyor 4, and the other is fixedly connected to the second rotating shaft 315. The inner walls of the two reciprocating moving blocks 318 are slidably connected to the threaded grooves of one of the first reciprocating screws 316 via rotatably connected sliders. Multiple first limiting rods 317 are fixedly connected to the housing of the second sprocket and chain conveyor 4. The reciprocating moving blocks 318 are slidably connected to the first limiting rods 317. A turning tooth 319 is fixedly installed at the lower end of each of the two reciprocating moving blocks 318. Two sets of secondary adsorption components are symmetrically distributed around 32. The secondary adsorption assembly 32 includes a third rotating shaft 321, adsorption rods 322, an iron storage bin 324, and a first motor 325. The third rotating shaft 321 is rotatably connected to the front and rear side walls of the crusher body 5. The first motor 325 is fixedly connected to the outer shell of the crusher body 5. The output end of the first motor 325 is fixedly connected to the third rotating shaft 321. Multiple sets of adsorption rods 322 are evenly spaced on the third rotating shaft 321, and each set of adsorption rods 322 includes multiple adsorption rods 322 arranged in a circumferential array. The adsorption rods 322 are fixedly connected to the third rotating shaft 321. Multiple electromagnets are fixedly installed on the adsorption rods 322. The iron storage bin 324 is fixedly connected to the inner wall of the crusher body 5. Multiple first clearance grooves 323 for avoiding the adsorption rods 322 are opened on the side of the iron storage bin 324 near the third rotating shaft 321. The lower side wall of the iron storage bin 324 is higher at the rear and lower at the front, and a discharge port for removing iron filings is opened on the front side of the iron storage bin 324.

[0018] In this invention, after the operator starts the equipment, the second sprocket chain conveyor 4 transports the raw material. The iron remover 311 performs preliminary iron removal on the raw material in the second sprocket chain conveyor 4. While removing iron, the iron remover 311 drives the first reciprocating screw 316 to rotate via the linkage shaft 312, the first helical gear 313, the second helical gear 314, and the second rotating shaft 315. The rotation of the first reciprocating screw 316 drives two reciprocating moving blocks 318 to reciprocate under the limit of the first limiting rod 317. The reciprocating moving blocks 318 reciprocate and move through the turning teeth 319 to turn the raw material conveyed on the second sprocket chain conveyor 4, ensuring that the iron blocks at the bottom are also adsorbed. The raw material after the initial adsorption is transported by the second sprocket chain conveyor 4. The material is fed into the crusher body 5 for crushing. When the crushed particles are output, the first motor 325 drives the third rotating shaft 321 to rotate. The iron particles wrapped inside the large pieces of material cannot be removed after the initial adsorption. At this time, the third rotating shaft 321 drives the adsorption rod 322 to rotate and adsorb the iron particles exposed after crushing. When the adsorption rod 322 enters the iron storage bin 324 through the first clearance groove 323, the adsorption rod 322 is de-energized, and the iron particles adsorbed on the adsorption rod 322 fall into the iron storage bin 324. Because the lower side plate of the iron storage bin 324 is higher at the back and lower at the front, the iron particles in the iron storage bin 324 roll forward. When it is necessary to clean the iron particles inside the iron storage bin 324, the discharge port on the front side of the iron storage bin 324 can be opened to discharge the iron particles.

[0019] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rare earth powder preparation anti-clogging feeding device, comprising a mounting frame (1) and a crusher body (5), characterized in that: It also includes a crushing mechanism (2) and a multi-stage adsorption mechanism for iron blocks (3); The crushing mechanism (2) for re-crushing particles whose particle size is still larger than required after crushing the crusher body (5) is installed on the left end of the mounting frame (1); The second sprocket chain conveyor (4) for conveying raw materials is installed on the upper rear side of the mounting frame (1); The multi-stage adsorption mechanism (3) for removing iron from the inside of the material is connected to the second sprocket chain conveyor (4); The crushing mechanism (2) includes a crushing return component (22) and an automatic unlocking component (23); the crushing return component (22) for screening and returning particles larger than required is installed on the left end of the mounting frame (1); the automatic unlocking component (23) for controlling the feeding and discharging of the crushing return component (22) is connected to the crushing return component (22).

2. The anti-clogging feeding device for rare earth powder production according to claim 1, characterized in that, The crushed material return assembly (22) includes a first filter screen (221), a first sprocket and chain conveyor (223), and a return plate (224); the first filter screen (221) is fixedly installed on the lower inner wall of the crusher body (5); the return port (222) is opened on the left inner wall of the crusher body (5), and the return port (222) is located to the left of the first filter screen (221); the first sprocket and chain conveyor (223) is fixedly installed on the left side of the crusher body (5). On the frame (1); multiple return plates (224) are evenly distributed at the output end of the first sprocket chain conveyor (223); the return plates (224) are rotatably connected to the output end of the first sprocket chain conveyor (223); each return plate (224) has a stop block (226) fixedly installed at the shaft connected to the first sprocket chain conveyor (223); the first discharge port (225) is opened on the left side wall of the crusher body (5) above the return port (222).

3. The anti-clogging feeding device for rare earth powder production according to claim 2, characterized in that, The automatic unlocking component (23) includes a limiting slider (232) and a pin (233); a limiting slider (232) is distributed at both the front and rear ends of each return plate (224); the limiting slider (232) is fixedly connected to the output end of the first sprocket chain conveyor (223); a limiting groove (231) is opened on both the front and rear sides of the housing of the first sprocket chain conveyor (223); the limiting slider (232) is limited and slidably connected to the limiting groove (231); each limiting slider (232) is fixedly connected to a pin (233).

4. The rare earth powder preparation anti-clogging feeding device according to claim 3, characterized in that, The limiting slide (231) is divided into a fixed section (2311) and an unlocking section (2312); the unlocking section (2312) is located on the upper side of the fixed section (2311), and the distance between the unlocking section (2312) and the return plate (224) is greater than the distance between the fixed section (2311) and the return plate (224); the fixed section (2311) and the unlocking section (2312) are smoothly connected.

5. The anti-clogging feeding device for rare earth powder production according to claim 4, characterized in that, The multi-stage adsorption mechanism (3) for iron blocks includes a primary adsorption component (31) and a secondary adsorption component (32); the primary adsorption component (31) for adsorbing iron blocks inside the raw material is installed on the second sprocket chain conveyor (4); the secondary adsorption component (32) for adsorbing iron particles after crushing by the crusher body (5) is installed on the crusher body (5).

6. The anti-clogging feeding device for rare earth powder production according to claim 5, characterized in that, The primary adsorption component (31) includes a primary adsorption drive component and a material turning component; the primary adsorption drive component for primary adsorption of raw materials is installed on the second sprocket chain conveyor (4); the material turning component for turning the raw materials conveyed by the second sprocket chain conveyor (4) is connected to the primary adsorption drive component.

7. The anti-clogging feeding device for rare earth powder production according to claim 6, characterized in that, The primary adsorption drive assembly includes an iron remover (311), a linkage shaft (312), a first helical gear (313), a second helical gear (314), and a second rotating shaft (315). The iron remover (311) is fixedly connected to the housing of the second sprocket chain conveyor (4). One rotating shaft of the iron remover (311) is fixedly connected to the linkage shaft (312). The linkage shaft (312) is fixedly connected to the first helical gear (313). The first helical gear (313) is meshed with the second helical gear (314). The second helical gear (314) is fixedly connected to the second rotating shaft (315). The second rotating shaft (315) is rotatably connected to the housing of the second sprocket chain conveyor (4).

8. The anti-clogging feeding device for rare earth powder production according to claim 7, characterized in that, The material turning assembly includes a first reciprocating screw (316), a first limiting rod (317), a reciprocating moving block (318), and a turning tooth (319); two first reciprocating screws (316) distributed on the left and right are fixedly connected at their close sides; at the far ends of the two first reciprocating screws (316), one is rotatably connected to the outer shell of the second sprocket chain conveyor (4), and the other is fixedly connected to the second rotating shaft (315); the inner walls of the two reciprocating moving blocks (318) are slidably connected to the thread groove of one of the first reciprocating screws (316) respectively through a rotatably connected slider; multiple first limiting rods (317) are fixedly connected to the outer shell of the second sprocket chain conveyor (4); the reciprocating moving block (318) is slidably connected to the first limiting rod (317); a turning tooth (319) is fixedly installed at the lower end of each of the two reciprocating moving blocks (318).

9. The anti-clogging feeding device for rare earth powder production according to claim 8, characterized in that, Two sets of secondary adsorption components (32) are symmetrically distributed on the left and right sides; The secondary adsorption assembly (32) includes a third rotating shaft (321), adsorption rods (322), an iron storage bin (324), and a first motor (325); the third rotating shaft (321) is rotatably connected to the front and rear side walls of the crusher body (5); the first motor (325) is fixedly connected to the outer shell of the crusher body (5); the output end of the first motor (325) is fixedly connected to the third rotating shaft (321); multiple sets of adsorption rods (322) are evenly spaced on the third rotating shaft (321), and each set of adsorption rods (322) includes multiple The adsorption rods (322) are arranged in a circular array; the adsorption rods (322) are fixedly connected to the third rotating shaft (321); multiple electromagnets are fixedly installed on the adsorption rods (322); the iron storage bin (324) is fixedly connected to the inner wall of the crusher body (5); multiple first clearance grooves (323) for avoiding the adsorption rods (322) are opened on the side of the iron storage bin (324) near the third rotating shaft (321); the lower side wall of the iron storage bin (324) is higher at the back and lower at the front, and the front side of the iron storage bin (324) is provided with a discharge port for removing iron filings.

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