Rare earth separating and feeding device

By combining the spiral feeding assembly, vibrating separator, and centrifugal assembly, and utilizing centrifugal and vibrating screening technologies, the clogging problem in the rare earth material transportation process is solved, achieving effective dispersion and anti-clogging of rare earth materials.

CN223606676UActive Publication Date: 2025-11-28INSTITUTE OF APPLIED CHEMISTRY JIANGXI ACADEMY OF SCIENCES
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520513283.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2025-11-28
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

The existing rare earth material conveying process lacks anti-clogging screening design, which makes rare earth materials prone to clogging in screw conveyors.

Method used

The design combines a spiral feeding assembly, a vibrating separator, a centrifugal assembly, and a screening component. It utilizes a centrifugal motor to drive the centrifugal disc to rotate and disperse rare earth materials. Combined with the collision of the vibrating screen and the striking rod, it achieves multi-stage screening and avoids material aggregation and jamming.

Benefits of technology

It effectively avoids blockage of rare earth materials during transportation, ensures the dispersion and screening of rare earth materials, avoids blockage in the screw conveyor, and improves transportation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223606676U_ABST
    Figure CN223606676U_ABST
Patent Text Reader

Abstract

The utility model discloses a rare earth separating and feeding device which comprises a spiral feeding assembly for conveying rare earth, a feeding rack, a motor, a spiral feeding pipe, a feeding outlet and a feeding port. The supporting bottom plate is welded with the spiral feeding pipe; a vibration separating screen for separating rare earth comprises a stand column, a damping spring, a screening box, a vibrator, a first discharging port and a second discharging port. The centrifugal assembly comprises a material box, a cross arm mounted in the material box, a centrifugal motor and a centrifugal disc; in the process of conveying the rare earth materials to a spiral feeding machine, an anti-blocking screening design is adopted, the rare earth materials fall into a material box, the rare earth materials are subjected to the centrifugal effect generated when a centrifugal motor drives a centrifugal disc to rotate, the rare earth materials flow towards the round edge of the centrifugal disc, the rare earth materials are dispersed, gathering and falling are avoided, and a screening net periodically vibrates along with the screening box; and the material screening net screens the rare earth materials again, the knocking rods collide with the stabilizing rods to enable the material screening net to vibrate, and the rare earth materials are prevented from being clamped on the material screening net.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to rare earth feeding technical field, concretely relates to a rare earth separation feeding device. BACKGROUND

[0002] Rare earth is a kind of material found in mineral, and in the production process of rare earth, the raw material of rare earth is usually rare earth concentrate or intermediate product after pretreatment, which needs to be crushed, ground and screened, and then conveyed to other equipment by feeding machine for subsequent processing operation;

[0003] There are various types of feeding machines for conveying rare earth materials, and screw feeding machine is one of them, the rare earth materials screened by screening machine are conveyed to other equipment through screw feeding machine to complete the feeding process, in the above operation, although the large-particle crushed ore is separated through the screening of screening machine, but part of the crushed particle ore is inevitably mixed in the screened rare earth materials, and there may be a jamming condition in the continuous conveying process of screw feeding machine, and there is no anti-jamming screening design in the process of conveying the screened rare earth materials to the feeding machine, which has the deficiency.

[0004] The existing screened rare earth material conveying process to the feeding machine has the problem of no anti-jamming screening design, therefore, the present application provides a rare earth separation feeding device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rare earth separation feeding device to solve the problem of no anti-jamming screening design in the process of conveying to screw feeding machine in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a rare earth separation feeding device, comprising

[0007] The screw feeding assembly for conveying rare earth includes a feeding rack, a motor, a screw feeding pipe, a feeding outlet and a feeding inlet.

[0008] The support bottom plate is welded with the screw feeding pipe.

[0009] The vibration separation screen for separating rare earth includes a stand, a damping spring, a screening box, a vibrator, a first discharge port and a second discharge port.

[0010] The centrifugal assembly includes a material box, a cross arm installed inside the material box, a centrifugal motor, a centrifugal disc and a guide plate installed on the surface of the centrifugal disc.

[0011] The material conveying piece includes a material conveying pipeline installed between the material box and the feeding inlet, a first discharge pipe and a second discharge pipe are arranged on one end of the material conveying pipeline, and a stabilizing rod is arranged on the inner surface of the material conveying pipeline.

[0012] The screen member comprises a fixed rod fixedly connected with a second discharge port, a connecting rod perpendicular to the fixed rod, and a screening mesh installed inside a material conveying pipeline.

[0013] Preferably, the material conveying pipeline is in an inclined state, the material box is embedded inside a top end surface of the inclined material conveying pipeline, the material box is in communication with the inside of the material conveying pipeline, and the material box is fixed with the second discharge port and the material conveying pipeline through bolts.

[0014] Preferably, a discharge gap H is formed between the centrifugal disc and the inner wall of the material box, and the material box, the centrifugal motor and the centrifugal disc are on the same vertical axis.

[0015] Preferably, the guide plates uniformly distributed on the surface of the centrifugal disc are in a spiral shape extending from a position close to the center of the circle to the edge of the circle.

[0016] Preferably, the fixed rod and the screening mesh are parallel, the connecting rod is perpendicular to the fixed rod, and a circular hole is formed in the surface of the material conveying pipeline for the connecting rod to pass through.

[0017] Preferably, the material conveying pipeline is in an inclined state, the second discharge pipe is inserted into the feeding port, the first discharge pipe and the second discharge pipe are both in communication with the material conveying pipeline, and the screening mesh divides the inside space of the material conveying pipeline into a screening area a and a discharging area b.

[0018] Preferably, a wave-shaped flow guide plate is fixedly connected to the surface of the screening mesh, the stable rod and the flow guide plate are both in a "T"-shaped rod structure, and the outer surfaces of the stable rod and the flow guide plate are tangent.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] In the present application, the rare earth material falls into the material box, and the rare earth material is dispersed by the centrifugal action generated by the rotation of the centrifugal disc driven by the centrifugal motor, so that the rare earth material flows to the edge of the centrifugal disc and is prevented from gathering and falling. The screening mesh vibrates periodically with the screening box, and the rare earth material is screened again by the screening mesh. The collision between the knocking rod and the stable rod causes the screening mesh to vibrate, so that the rare earth material is prevented from being stuck on the screening mesh. The rare earth material entering the spiral feeder is in a state of screening and separation of gravel and dispersion, so that the rare earth material is prevented from being blocked during conveying in the spiral feeder. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural schematic diagram of the present application;

[0022] Figure 2 FIG. 2 is a top view structural schematic diagram of the material box of the present application;

[0023] Figure 3 It is a cross-section structure schematic view of the material box of the utility model;

[0024] Figure 4 It is a cross-section structure schematic view of the material conveying pipeline of the utility model;

[0025] Figure 5 It is a structure schematic view of the utility model; Figure 4 A enlarged structure schematic view of the middle A part;

[0026] Figure 6 It is a top view structure schematic view of the material screening net of the utility model;

[0027] Figure 7 It is a three-dimensional structure schematic view of the utility model's fixing rod;

[0028] In the figure: 1, spiral feeding assembly; 2, supporting bottom plate; 3, vibrating separation screen; 4, material box; 5, material conveying pipeline; 6, fixing rod; 7, connecting rod; 9, material screening net; 11, feeding rack; 12, motor; 13, spiral feeding pipe; 14, feeding outlet; 15, feeding inlet; 31, stand column; 32, damping spring; 33, material screening box; 34, vibrator; 35, first discharge outlet; 36, second discharge outlet; 41, cross arm; 51, first discharge pipe; 52, second discharge pipe; 53, stabilizing rod; 81, centrifugal motor; 82, centrifugal disc; 83, guide plate; 91, knocking rod; 92, flow guide plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Please refer to Figures 1 to 7The utility model provides a technical scheme: a rare earth separation feeding device, including conveying rare earth's spiral feeding assembly 1, including feeding frame 11, motor 12, spiral feeding pipe 13, feeding outlet 14 and feed inlet 15, feeding frame 11 supports motor 12, spiral feeding pipe 13, feeding outlet 14 and feed inlet 15 are welded with both ends of spiral feeding pipe 13 respectively, when rare earth material enters feed inlet 15, motor 12 drives the screw rod inside spiral feeding pipe 13 to feed, and the rare earth material conveyed falls down from feeding outlet 14 to achieve the effect of feeding, the structure and principle of spiral feeding assembly 1 are prior art, and the present application does not make detailed elaboration;The support base plate 2 welded with the spiral feeding pipe 13, the support base plate 2 supports the stand 31;The vibration separation screen 3 of separating rare earth, including stand 31, damping spring 32, screening box 33, vibrator 34, first discharge port 35 and second discharge port 36, the stand 31 is fixed with support base plate 2 through bolt, and the rare earth material pours into the inside of screening box 33, under the operation of vibrator 34, screening box 33 vibrates, and the vibration screen in the inside of screening box 33 screens the rare earth material, can screen out most large particle broken ore, and the broken ore of screening is conveyed from first discharge port 35, and the rare earth material of screening is conveyed to the inside of material box 4 from second discharge port 36, and the structure and principle of vibration separation screen 3 are prior art, and the present application does not make detailed elaboration;Centrifugal component, including material box 4, the horizontal arm 41 of installing in the inside of material box 4, centrifugal motor 81, centrifugal disc 82, guide plate 83 on the surface of installing centrifugal disc 82, when the rare earth material enters the inside of material box 4, the rare earth material falls into the center position of centrifugal disc 82, and centrifugal motor 81 in the operating state can drive centrifugal disc 82 to rotate, and the rare earth material is subjected to the centrifugal action of centrifugal disc 82 rotation driven by centrifugal motor 81, and the rare earth material flows to the round edge of centrifugal disc 82, and the rare earth material is guided by guide plate 83, so that the rare earth material diffuses uniformly to the round edge of centrifugal disc 82, thereby making the rare earth material be in the dispersed state, avoid the condition that the rare earth material is accumulated together, avoid accumulation;Conveying piece, including the conveying pipeline 5 between material box 4 and feed inlet 15, the first discharge pipe 51 and the second discharge pipe 52 are equipped on one end of conveying pipeline 5, the inner surface of this conveying pipeline 5 is equipped with steady rod 53, and the dispersed rare earth material in the inside of material box 4 falls into the inside of conveying pipeline 5, and conveying pipeline 5 conveys the rare earth material into feed inlet 15, and the rare earth material screened by screening net 9 in conveying pipeline 5 still has large particle broken stone separation, and the shunted broken stone is conveyed from second discharge pipe 52.The screen member comprises a fixed rod 6 fixedly connected with the second discharge port 36, a connecting rod 7 vertically fixed with the fixed rod 6, and a screen mesh 9 installed inside the material conveying pipe 5, wherein the surface of the screen mesh 9 is provided with a knocking rod 91, the rare earth material falling into the screen mesh 9 inside the material conveying pipe 5, the screen mesh 9 is fixedly connected with the screen box 33 through the connecting rod 7 and the fixed rod 6 to form an integral structure, the screen mesh 9 vibrates periodically with the screen box 33, the screen mesh 9 can screen the rare earth material to form a multi-stage screening effect, the knocking rod 91 vibrates with the screen mesh 9, the periodically vibrating knocking rod 91 collides with the stabilizing rod 53, and the collision between the knocking rod 91 and the stabilizing rod 53 can make the screen mesh 9 vibrate to avoid the rare earth material being stuck on the screen mesh 9.

[0031] In the embodiment, the material conveying pipe 5 is in an inclined state, the rare earth material can be conveyed to the bottom end in the material conveying pipe 5, the material box 4 is embedded in the inside of the inclined top surface of the material conveying pipe 5, the rare earth material falling into the material box 4 falls into the inside of the material conveying pipe 5, the material box 4 is communicated with the inside of the material conveying pipe 5, and the material box 4 is fixedly connected with the second discharge port 36 and the material conveying pipe 5 through bolts.

[0032] In the embodiment, the centrifugal disc 82 and the inner wall of the material box 4 form a discharging gap H, the specific size of the discharging gap H can be designed according to actual conditions, the material box 4, the centrifugal motor 81 and the centrifugal disc 82 are arranged on the same vertical axis, the guide plates 83 uniformly distributed on the surface of the centrifugal disc 82 are in a spiral shape extending from the position close to the center to the edge of the circle, the centrifugal motor 81 in the running state can drive the centrifugal disc 82 to rotate, the rare earth material is subjected to the centrifugal action generated by the centrifugal disc 82 driven by the centrifugal motor 81, the rare earth material flows to the edge of the centrifugal disc 82, and the rare earth material is guided by the guide plates 83.

[0033] In the embodiment, the fixed rod 6 and the screen mesh 9 are parallel, the connecting rod 7 is vertically fixed with the fixed rod 6, the surface of the material conveying pipe 5 is provided with a circular hole for the connecting rod 7 to penetrate, the screen mesh 9 is fixedly connected with the screen box 33 through the connecting rod 7 and the fixed rod 6 to form an integral structure, the screen mesh 9 vibrates periodically with the screen box 33, the screen mesh 9 separates the gravel still contained in the rare earth material, and the clogging caused by the gravel particles is avoided.

[0034] In the embodiment, the material conveying pipe 5 is in an inclined state, the second discharge pipe 52 is inserted into the inside of the feeding port 15, the first discharge pipe 51 and the second discharge pipe 52 are communicated with the material conveying pipe 5, the screen mesh 9 divides the inside space of the material conveying pipe 5 into a screening area a and a discharging area b, the rare earth material in the material conveying pipe 5 moves in the screening area a, and the fine rare earth material leaks and falls into the discharging area b.

[0035] In this embodiment, the surface of the screening mesh 9 is fixedly connected with a wave-shaped guide plate 92, the wave-shaped guide plate 92 has a long length, so that the rare earth material can stay on the screening mesh 9 for a longer time, which is beneficial to fully screen the rare earth material, the stable rod 53 and the guide plate 92 are both in a rod-shaped structure of a T type, the outer surfaces of the stable rod 53 and the guide plate 92 are tangent, the knocking rod 91 vibrates with the screening mesh 9, the periodically vibrating knocking rod 91 collides with the stable rod 53, and the collision between the knocking rod 91 and the stable rod 53 can make the screening mesh 9 vibrate, so that the rare earth material is prevented from being stuck on the screening mesh 9.

[0036] The working principle and use process of the utility model are as follows:

[0037] The broken ore in the rare earth material is separated by the vibrating screen 3, the rare earth material separated by screening falls into the material box 4 and then enters the conveying pipeline 5, and finally is conveyed into the feeding port 15 of the screw feeding assembly 1, and the screw feeding assembly 1 conveys the rare earth material to the feeding outlet 14;

[0038] When the rare earth material falls into the material box 4, the rare earth material falls into the center of the centrifugal disc 82, and the centrifugal motor 81 in the running state can drive the centrifugal disc 82 to rotate;

[0039] The rare earth material is subjected to the centrifugal action generated by the centrifugal disc 82 driven by the centrifugal motor 81 to flow to the circular edge of the centrifugal disc 82;

[0040] The rare earth material is subjected to the guiding action of the guide plate 83 to uniformly diffuse to the circular edge of the centrifugal disc 82, so that the rare earth material is in a dispersed state, and the rare earth material is prevented from being stacked together and from being stacked;

[0041] The rare earth material in the dispersed state falls onto the screening mesh 9 in the conveying pipeline 5;

[0042] The screening mesh 9 is fixed into an integral structure with the screening box 33 through the connecting rod 7 and the fixed rod 6, the screening mesh 9 periodically vibrates with the screening box 33, the screening mesh 9 can screen the rare earth material, and a multi-stage screening effect of the rare earth material is formed;

[0043] The knocking rod 91 vibrates with the screening mesh 9, the periodically vibrating knocking rod 91 collides with the stable rod 53, and the collision between the knocking rod 91 and the stable rod 53 can make the screening mesh 9 vibrate, so that the rare earth material is prevented from being stuck on the screening mesh 9;

[0044] In summary: in the process of conveying to the spiral feeder, the anti-blocking screening design is provided, the rare earth materials fall into the material box 4, the rare earth materials are subjected to the centrifugal action generated by the rotation of the centrifugal disc 82 driven by the centrifugal motor 81, the rare earth materials flow to the circular edge of the centrifugal disc 82, the rare earth materials are dispersed, the gathering falling is avoided, the screening net 9 is periodically vibrated with the screening box 33, the screening net 9 screens the rare earth materials again, the vibration of the screening net 9 is caused by the collision between the knocking rod 91 and the stabilizing rod 53, and the rare earth materials are prevented from being stuck on the screening net 9.

[0045] Although the embodiments of the present application have been shown and described (see the foregoing detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rare earth separation and feeding device, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9).

2. The rare earth separation feeding device according to claim 1, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9).

3. The rare earth separation feeding device according to claim 1, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9).

4. The rare earth separation feeding device according to claim 1, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9).

5. The rare earth separation feeding device according to claim 1, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9).

6. The rare earth separation feeding device according to claim 1, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9).

7. The rare earth separation feeding device according to claim 1, characterized in that: The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve net (9). The invention relates to a rare earth feeding device, which comprises a spiral feeding assembly (1) for feeding rare earth, a support base plate (2) welded with the spiral feeding pipe (13), a vibrating separation sieve (3) for separating rare earth, a centrifugal assembly, a feeding pipe (5) for feeding material, a fixed rod (6) for screening material, a connecting rod (7), a sieve net (9) installed inside the feeding pipe (5), and a knock rod (91) on the surface of the sieve