Hydrogen decrepitation furnace for processing neodymium-iron-boron permanent magnet

Abstract

The utility model discloses a hydrogen decrepitation furnace for neodymium-iron-boron permanent magnet processing, and particularly relates to the technical field of neodymium-iron-boron permanent magnet processing, which comprises a hydrogen decrepitation furnace main body fixedly mounted on a mounting frame, the top of the hydrogen decrepitation furnace main body is fixedly communicated with a feed port, and the bottom of the hydrogen decrepitation furnace main body is fixedly communicated with a discharge port; a sorting cylinder fixedly communicating with the discharging port is fixedly mounted on the mounting frame, a screening net cylinder is rotatably mounted in an inner cavity of the sorting cylinder, a second rotating rod is rotatably mounted in the center of the bottom of the screening net cylinder in a penetrating mode, the bottom end of the second rotating rod is rotatably connected with the top of a bottom plate of the mounting frame, and spiral blades are fixedly mounted at the upper end of the peripheral wall of the second rotating rod; a driving assembly for driving the rotating rod II and the screening net cylinder to rotate oppositely is mounted on the mounting frame; the screening net barrel and the spiral blade rotate oppositely, so that the spiral blade is matched with rotation of the screening net barrel to conduct centrifugal motion while stirring alloy powder in the screening net barrel, and the separation efficiency of coarse powder and fine powder in the alloy powder is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to neodymium iron boron permanent magnet processing technical field, concretely hydrogen decrepitation furnace for neodymium iron boron permanent magnet processing. BACKGROUND

[0002] Patent publication number CN218503348U discloses a kind of hydrogen decrepitation furnace for neodymium iron boron permanent magnet processing of high-efficiency collection dust, belong to neodymium iron boron permanent magnet processing technical field.The utility model is used to solve hydrogen decrepitation furnace preliminary valve exhaust, furnace pressure is larger, part alloy coarse powder and fine powder are collided filter screen with airflow high speed, easy to cause existing filter screen damage, so that alloy powder interception efficiency is lower technical problem, including collection mechanism and hydrogen decrepitation furnace main body, the furnace wall of hydrogen decrepitation furnace main body is opened with the inner exhaust port of collection mechanism fixed connection.The utility model shunt frame straight face inner exhaust port, high-pressure airflow is shunted in real time, alloy powder in airflow is contacted and collided using protruding block and shunt frame upper ridge block, constitute secondary buffering, avoid the airflow containing part coarse powder and fine powder directly contact filter screen, cause filter screen damage, strengthen overall filter screen strength, it is convenient to disperse airflow, improve the efficiency of hydrogen decrepitation furnace exhaust high-efficiency collection powder, further separate the alloy powder collected simultaneously, improve efficiency.

[0003] The above-mentioned technology separates coarse and fine powders by allowing part of the alloy coarse powder and fine powder to impact the filter screen with airflow, and further buffers the airflow impacting the filter screen to prevent the airflow from damaging the filter screen. However, since the airflow is weakened, the separation effect of the coarse and fine powders impacting the filter screen with airflow is reduced, resulting in incomplete separation of the coarse and fine alloy powders. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing hydrogen decrepitation furnace for neodymium iron boron permanent magnet processing.

[0005] The utility model solves the technical problem of improving the separation effect of alloy powder.

[0006] The utility model can be implemented by the following technical scheme: a hydrogen decrepitation furnace main body is fixedly installed on a mounting frame, a feed inlet is fixedly and communicatively connected to the top of the hydrogen decrepitation furnace main body, a discharge outlet is fixedly and communicatively connected to the bottom of the hydrogen decrepitation furnace main body, a sorting cylinder fixedly and communicatively connected to the discharge outlet is fixedly installed on the mounting frame, a screening mesh cylinder is rotatably installed in the inner cavity of the sorting cylinder, a second rotating rod is rotatably installed through the center position at the bottom of the screening mesh cylinder, the bottom end of the second rotating rod is rotatably connected to the top of the mounting frame bottom plate, helical blades are fixedly installed on the upper end of the outer circumferential wall of the second rotating rod, and a driving assembly is installed on the mounting frame to drive the second rotating rod and the screening mesh cylinder to rotate towards each other.

[0007] The further technical improvement of the utility model is that a brush roller is rotatably installed in the inner cavity of the sorting cylinder and is in close contact with the outer circumferential wall of the screening mesh cylinder.

[0008] Further, the outer peripheral wall of the screening net cylinder is fixedly provided with a plurality of cleaning plates which are attached to the top of the sorting cylinder bottom plate.

[0009] Further, the driving assembly comprises a rotating rod one which is rotatably arranged on the mounting frame, the rotating rod one and the screening net cylinder are driven by a belt wheel, gear one and gear two which are rotatably arranged on the mounting frame and are in meshing with each other are arranged between the rotating rod one and the rotating rod two, and the gear one and the rotating rod one and the gear two and the rotating rod two are driven by belt wheels.

[0010] Further, the bottom of the sorting cylinder is fixedly communicated with a discharge port one, and the bottom of the screening net cylinder is fixedly communicated with a discharge port two.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、 the screening net cylinder and the spiral blade are rotated towards each other, so that the spiral blade stirs the alloy powder in the screening net cylinder and cooperates with the rotation of the screening net cylinder to make centrifugal motion, to accelerate the separation of the coarse and fine powders in the alloy powder, so that the separation of the coarse and fine powders in the alloy powder is more efficient and thorough. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to facilitate those skilled in the art to understand, the utility model is further described below in combination with the drawings.

[0014] Fig. 1 It is the overall structure schematic view of the utility model;

[0015] Fig. 2 It is the overall structure front view of the utility model;

[0016] Fig. 3 It is the overall structure front view of the utility model.

[0017] In the drawing: 1, mounting frame;2, hydrogen furnace main body;3, feed inlet;4, discharge port;5, sorting cylinder;6, screening net cylinder;7, brush roller;8, cleaning plate;9, discharge port one;10, discharge port two;11, rotating rod one;12, rotating rod two;13, spiral blade;14, gear one;15, gear two. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0019] Please refer to Figs. 1-3As shown, the hydrogen furnace for processing Nd-Fe-B permanent magnet provided by the embodiment includes a mounting frame 1, a hydrogen furnace body 2 is fixedly installed on the mounting frame 1, a feeding port 3 is fixedly communicated with the top of the hydrogen furnace body 2, a discharging port 4 is fixedly communicated with the bottom of the hydrogen furnace body 2, a valve is installed on the discharging port 4, a sorting cylinder 5 is fixedly installed on the mounting frame 1 at a position corresponding to the bottom of the hydrogen furnace body 2, the sorting cylinder 5 is fixedly communicated with the discharging port 4, a screening mesh cylinder 6 is rotatably installed in the inner cavity of the sorting cylinder 5, a brush roller 7 is rotatably installed in the inner cavity of the sorting cylinder 5 and is in abutment with the outer peripheral wall of the screening mesh cylinder 6, a plurality of cleaning plates 8 are fixedly installed on the outer peripheral wall of the screening mesh cylinder 6 and are in abutment with the top of the bottom plate of the sorting cylinder 5, a first discharging port 9 is fixedly communicated with the bottom of the sorting cylinder 5, a second discharging port 10 is fixedly communicated with the bottom of the screening mesh cylinder 6, and valves are arranged on the first and second discharging ports 9 and 10.

[0020] When the screening mesh cylinder 6 rotates, the plurality of cleaning plates 8 will scrape the top of the bottom plate of the sorting cylinder to sweep the material between the sorting cylinder 5 and the screening mesh cylinder 6 to the position of the first discharging port 9, so as to facilitate the collection of the material between the sorting cylinder 5 and the screening mesh cylinder 6 through the first discharging port 9. In the process of rotation of the screening mesh cylinder 6, the outer peripheral wall of the screening mesh cylinder 6 is in a relative motion state with the brush roller 7, so that the brush roller 7 scrapes the outer peripheral wall of the screening mesh cylinder 6 to avoid the blockage of the mesh holes of the screening mesh cylinder 6 by the material.

[0021] A first rotating rod 11 is rotatably installed on the mounting frame 1, a driving motor is installed on the mounting frame 1 to drive the rotation of the first rotating rod 11, a second rotating rod 12 is rotatably installed at the center position of the bottom of the screening mesh cylinder 6, the bottom end of the second rotating rod 12 is rotatably connected with the top of the bottom plate of the mounting frame 1, helical blades 13 are fixedly installed on the upper end of the outer peripheral wall of the second rotating rod 12, the first rotating rod 11 and the screening mesh cylinder 6 are driven by belt wheels, gear one 14 and gear two 15 are rotatably installed on the mounting frame 1 at a position between the first rotating rod 11 and the second rotating rod 12 and are in meshing engagement, and the first rotating rod 11 and the gear two 15 are driven by belt wheels.

[0022] The rotating first rotating rod 11 will drive the screening mesh cylinder 6 to rotate synchronously and drive the gear one 14 to rotate, the rotating gear one 14 will drive the gear two 15 to rotate in the opposite direction, and the gear two 15 will drive the second rotating rod 12 to rotate synchronously, so that the first rotating rod 11 and the second rotating rod 12 are in opposite rotation states. The rotating second rotating rod 12 will agitate the material in the screening mesh cylinder 6 through the helical blades 13, so that the material in the screening mesh cylinder 6 is in a centrifugal state, and the opposite rotation state of the screening mesh cylinder 6 and the helical blades 13 increases the centrifugal force.

[0023] In use, the NdFeB permanent magnets to be crushed are poured into the hydrogen crushing furnace body for crushing. After the NdFeB permanent magnets are crushed, the discharge port 4 is opened, allowing the crushed NdFeB permanent magnets to enter the screening cylinder 6. Then, the first rotating rod 11 is rotated to drive the screening cylinder 6 to rotate synchronously, driving the second rotating rod 12 to rotate in the opposite direction. Finally, the screening cylinder 6 and the second rotating rod 12 rotate in opposite directions. The second rotating rod 12 will stir the crushed NdFeB permanent magnets in the screening cylinder 6 through the spiral blades 13, and the rotation of the screening cylinder 6 in the opposite direction will cause the powder of the crushed NdFeB permanent magnets in the screening cylinder 6 to be further crushed. The NdFeB permanent magnets enter the sorting box through the mesh openings on the screening cylinder 6. During this process, the brush roller 7 in the sorting box scrapes the outer wall of the screening cylinder 6 to prevent the mesh openings from being blocked. After the powder particles in the crushed NdFeB permanent magnets are separated into the sorting box, the NdFeB permanent magnets without powder particles in the screening cylinder 6 can be collected by opening the discharge port 10. Then, the screening cylinder 6 drives the cleaning plate 8 to scrape the top of the bottom plate of the sorting box to sweep the NdFeB permanent magnet powder particles in the sorting box to the discharge port 10, where they can be collected.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hydrogen decrepitation furnace for processing neodymium-iron-boron permanent magnets, comprising a hydrogen decrepitation furnace main body (2) fixedly installed on a mounting frame (1), characterized in that: The hydrogen crusher main body (2) top fixed communication has a feed inlet (3), hydrogen crusher main body (2) bottom fixed communication has a discharge port (4), the mounting bracket (1) on fixedly installed with sorting cylinder (5) and discharge port (4) fixed communication, the sorting cylinder (5) lumen rotationally mounted with screen mesh cylinder (6), the center position at the bottom of screen mesh cylinder (6) penetrates rotationally mounted with rotating rod two (12), the rotating rod two (12) bottom end and mounting bracket (1) bottom plate top rotationally connected, rotating rod two (12) outer peripheral wall's upper end fixedly installed with spiral blade (13), mounting bracket (1) on installation drive assembly that promotes rotating rod two (12) and screen mesh cylinder (6) opposite rotation.

2. The hydrogen decrepitation furnace for neodymium-iron-boron permanent magnet processing according to claim 1, characterized in that, The sorting cylinder (5) lumen rotationally mounted with the brush roller (7) that is attached to the outer peripheral wall of screen mesh cylinder (6).

3. The hydrogen decrepitation furnace for neodymium-iron-boron permanent magnet processing according to claim 1, characterized in that, The outer peripheral wall of screen mesh cylinder (6) is fixedly installed with a plurality of cleaning plates (8) that are attached to the top of the bottom plate of sorting cylinder (5).

4. The hydrogen decrepitation furnace for neodymium-iron-boron permanent magnet processing according to claim 1, characterized in that, The drive assembly comprises a rotating rod one (11) rotationally mounted on the mounting bracket (1), the rotating rod one (11) and screen mesh cylinder (6) are driven by belt pulley, the mounting bracket (1) is rotationally mounted with gear one (14) and gear two (15) that are engaged with each other between the rotating rod one (11) and the rotating rod two (12), the gear one (14) and the rotating rod one (11) and the gear two (15) and the rotating rod two (12) are driven by belt pulley.

5. The hydrogen decrepitation furnace for neodymium-iron-boron permanent magnet processing according to claim 1, characterized in that, The bottom of sorting cylinder (5) is fixedly communicated with discharge port one (9), and the bottom of screen mesh cylinder (6) is fixedly communicated with discharge port two (10).

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