CN114628140A - Airflow milling system for neodymium-iron-boron powder - Google Patents
Airflow milling system for neodymium-iron-boron powder Download PDFInfo
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- CN114628140A CN114628140A CN202210317280.3A CN202210317280A CN114628140A CN 114628140 A CN114628140 A CN 114628140A CN 202210317280 A CN202210317280 A CN 202210317280A CN 114628140 A CN114628140 A CN 114628140A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
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Abstract
The utility model relates to a jet mill system of neodymium iron boron powder, which relates to the field of machining and is arranged at a discharge port of a jet mill, comprising a fixed cylinder, wherein one end of the fixed cylinder is fixedly connected with the discharge port of the jet mill and is communicated with the interior of the discharge port of the jet mill, and one end of the fixed cylinder, which is close to the discharge port, is of an open structure; a sliding cylinder is coaxially arranged in the fixed cylinder, is in sliding connection with the fixed cylinder along the length direction of the fixed cylinder and is in rotating connection with the fixed cylinder; an elastic part is fixedly arranged on one side of the sliding cylinder, which is far away from the jet mill, and the elastic part is used for enabling the sliding cylinder to move along the length direction of the fixed cylinder; a transmission part is arranged between the sliding cylinder and the fixed cylinder, and the transmission part is used for enabling the sliding cylinder to move along the length direction of the fixed cylinder and meanwhile enabling the sliding cylinder to rotate around the axis of the sliding cylinder; the sliding cylinder outside is provided with the row of material district, and row of material district is provided with a plurality of along sliding cylinder circumference. This application can improve metal powder's effective utilization.
Description
Technical Field
The application relates to the field of machining, in particular to an airflow mill system for neodymium iron boron powder.
Background
The neodymium-iron-boron magnetic material is a tetragonal crystal formed by neodymium, iron and boron, and is widely used for preparing neodymium-iron-boron magnets.
The metal powders having different particle sizes are used in different applications, and in the metal processing, the metal powders having different particle sizes are discharged and mixed together, so that the metal powders having different particle sizes cannot be effectively used.
Disclosure of Invention
In order to improve metal powder's availability, this application provides an air current of neodymium iron boron powder grinds system.
The application provides a pair of air current of neodymium iron boron powder grinds system adopts following technical scheme:
a jet mill system for neodymium iron boron powder is arranged at a discharge port of a jet mill and comprises a fixed cylinder, wherein one end of the fixed cylinder is fixedly connected with the discharge port of the jet mill and is communicated with the interior of the discharge port of the jet mill, and one end of the fixed cylinder, which is close to the discharge port, is of an opening structure; a sliding cylinder is coaxially arranged in the fixed cylinder, one end of the sliding cylinder, which is close to the discharge opening, is of an opening structure, the sliding cylinder is in sliding connection with the fixed cylinder along the length direction of the fixed cylinder, and the sliding cylinder is in rotating connection with the fixed cylinder; an elastic part is fixedly arranged on one side of the sliding cylinder, which is far away from the jet mill, and is positioned between the sliding cylinder and the fixed cylinder, and the elastic part is used for enabling the sliding cylinder to move along the length direction of the fixed cylinder; a transmission part is arranged between the sliding cylinder and the fixed cylinder, and the transmission part is used for enabling the sliding cylinder to move along the length direction of the fixed cylinder and meanwhile enabling the sliding cylinder to rotate around the axis of the sliding cylinder; a plurality of discharge holes are formed in the side wall of the sliding cylinder, penetrate through the side wall of the sliding cylinder and are arranged in the discharge area, and the diameters of the discharge holes in different discharge areas are different; a discharge port is formed in the side wall of the fixed cylinder, is positioned at the bottom of the fixed cylinder and is opposite to one discharge area; the controller is installed on the fixed cylinder and connected with the jet mill, and the controller is used for controlling the strength of air flow in the jet mill.
By adopting the technical scheme, the metal powder enters the sliding cylinder under the action of the airflow, and the airflow can push the sliding cylinder, so that the sliding cylinder moves towards the direction close to the elastic part and rotates around the axis of the sliding cylinder under the action of the transmission part, so that a plurality of discharging areas are sequentially arranged at the bottom of the sliding cylinder, at the moment, the metal powder with different grain sizes can be discharged in a differentiated way through the discharging holes with different grain sizes, and the controller can control the intensity of the air flow, so that the sliding cylinder can realize the static state, rotate around the axis of the sliding cylinder and move along the length direction of the sliding cylinder under the action of the air flow with different intensities and the elastic piece, the metal powder with different particle sizes can be conveniently distinguished and discharged, the metal powder with different particle sizes can be effectively utilized, so that the effective utilization rate of the metal powder is improved.
Optionally, the transmission part is a sliding block, two sliding blocks are arranged and are located between the side wall of the fixed cylinder and the side wall of the sliding cylinder, and the two sliding blocks are symmetrically arranged on two sides of the sliding cylinder and are fixedly connected with the fixed cylinder; the sliding chute is formed in the outer side wall of the sliding barrel, the sliding chute is arranged in an S shape along the circumferential direction of the sliding barrel, two ends of the sliding chute are communicated, and the sliding block is arranged in the sliding chute in a sliding mode along the length direction of the sliding chute.
Through adopting above-mentioned technical scheme, the air current produces pushing action to the sliding cylinder, make the sliding cylinder remove towards the direction of being close to the elastic component, slide in the spout this moment, make the sliding cylinder rotate around self axis, the sliding cylinder is when removing, compress the elastic component, can make the pushing action of elastic component to the sliding cylinder equal to or be greater than the pushing action of air current to the sliding cylinder through control air current intensity this moment, make the sliding cylinder can realize static operating condition, be convenient for metal powder discharges from the relief hole of sliding cylinder bottom, and can make the sliding cylinder remove towards the direction of keeping away from the elastic component, and then make the sliding cylinder can continuously move and rotate in fixed cylinder, make the metal powder of different particle size can obtain distinguishing discharge and effective utilization, thereby the effective utilization of metal powder has been improved.
Optionally, a fixed cylinder and a sliding cylinder are made of transparent materials, a camera is installed on the fixed cylinder and connected with a controller, the camera is used for identifying the size of the powder particle size close to the camera, corresponding signals are transmitted, and the controller responds to the corresponding signals and controls the air flow strength.
Through adopting above-mentioned technical scheme, the inside metal powder particle size condition of sliding tube can be observed to the camera to the signal that the transmission corresponds, the controller is in response to the signal that corresponds, and control air current intensity, makes the relief hole that corresponds this powder particle size be located the sliding tube bottom, and then makes metal powder can in time be discharged the sliding tube, thereby has improved metal powder's discharge efficiency.
Optionally, a sealing cylinder is coaxially arranged in the fixed cylinder, both ends of the sealing cylinder are of an opening structure, one end of the sealing cylinder is slidably inserted into the sliding cylinder along the length direction of the sealing cylinder, and one end of the sealing cylinder, which is far away from the sliding cylinder, extends towards the direction close to the side wall of the fixed cylinder and is fixedly connected with the fixed cylinder.
Through adopting above-mentioned technical scheme, if in metal powder gets into the spout, can hinder the removal of slider in the spout for the sliding cylinder can't remove and rotate in fixed cylinder, and the setting of sealed cylinder can avoid metal powder to get into the spout in, provides confined operational environment for the removal and the rotation of sliding cylinder, thereby has improved the life of the air current mill system of neodymium iron boron powder.
Optionally, a material receiving assembly is arranged below the fixed cylinder and used for receiving metal powder with different particle sizes.
Through adopting above-mentioned technical scheme, connect the material subassembly to realize receiving the metal powder of different particle sizes, avoid the metal powder of different particle sizes still to mix after being distinguished the discharge and receive together, be convenient for directly use the metal powder of different particle sizes to metal powder's effective utilization ratio has further been improved.
Optionally, the material receiving assembly includes a motor and a material receiving cylinder, the motor is installed below the fixed cylinder, a support plate is horizontally arranged between the motor and the fixed cylinder, the support plate is coaxially arranged with the output shaft of the motor and is fixedly connected with the output shaft of the motor, and the motor is connected with the controller; the vertical material receiving cylinder that is provided with on the backup pad top surface, the material receiving cylinder top is open structure, and the material receiving cylinder is provided with a plurality of along motor circumference, and material receiving cylinder and row material district one-to-one, and one of them material receiving cylinder and discharge gate are just to setting up, material receiving cylinder and backup pad fixed connection.
Through adopting above-mentioned technical scheme, the rotation of a slip section of thick bamboo is realized to the intensity of controller through control air current, and then the metal powder of a certain particle size of control can be discharged to in going into and just to setting up with the discharge gate and connecing the feed cylinder, when controller control slip section of thick bamboo rotated, the controller simultaneous control motor started, the motor output shaft drives and connects the feed cylinder to rotate, make corresponding material receiving cylinder remove under the discharge gate, thereby the realization is received the metal powder of different particle sizes.
Optionally, a protective film is fixedly arranged at one end, close to the sealing cylinder, of the sliding cylinder, and the protective film is made of a flexible material.
Through adopting above-mentioned technical scheme, the setting of protection film can avoid a slide cylinder and a sealed cylinder direct contact, and the protection film adopts flexible material to make simultaneously, can reduce the friction loss of a slide cylinder and a sealed cylinder to the life of the jet mill system of neodymium iron boron powder has further been improved.
Optionally, the elastic member is a spring.
Through adopting above-mentioned technical scheme, can produce the pushing action to the slip section of thick bamboo after the spring is compressed for the slip section of thick bamboo can move towards the direction of keeping away from the spring, thereby makes the slip section of thick bamboo can continuously move and rotate in fixed section of thick bamboo.
In summary, the present application includes at least one of the following beneficial technical effects:
through the arrangement of the fixed cylinder, the sliding cylinder, the transmission part and the elastic part, the sliding cylinder can be static, rotate around the axis of the sliding cylinder and move along the length direction of the sliding cylinder under the action of airflows with different intensities and the elastic part, so that metal powder with different particle sizes can be conveniently distinguished and discharged, the metal powder with different particle sizes can be effectively utilized, and the effective utilization rate of the metal powder is improved;
through the arrangement of the camera, the discharge hole corresponding to the particle size of the powder is positioned at the bottom of the sliding cylinder, so that the metal powder can be discharged out of the sliding cylinder in time, and the discharge efficiency of the metal powder is improved;
connect the material subassembly through the setting, avoid the metal powder of different particle sizes still to mix after being distinguished the discharge and receive together, be convenient for directly use the metal powder of different particle sizes to metal powder's effective utilization has further been improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a cross-sectional view of an embodiment of the present application;
fig. 3 is a schematic structural diagram of a hidden fixing barrel and a receiving assembly in an embodiment of the present application.
Description of reference numerals: 0. a discharge outlet; 1. a fixed cylinder; 11. a discharge port; 2. a sliding cylinder; 21. a discharge hole; 22. a chute; 23. a protective film; 3. a slider; 4. a sealing cylinder; 5. a spring; 6. a material receiving assembly; 61. a motor; 62. a material receiving barrel; 63. a support plate; 7. a controller; 8. a camera is provided.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an airflow mill system for neodymium iron boron powder, which is arranged at the discharge port 0 of an airflow crusher. Referring to fig. 1 and 2, the airflow milling system for neodymium-iron-boron powder comprises a fixed cylinder 1, wherein the fixed cylinder 1 is horizontally arranged, and one end of the fixed cylinder 1, which is close to a discharge outlet 0, is of an open structure and is fixedly connected with the discharge outlet 0.
Referring to fig. 1 and 2, the longitudinal section of a fixed cylinder 1 is circular, a sliding cylinder 2 and a sealing cylinder 4 are coaxially arranged in the fixed cylinder 1, one end of the sliding cylinder 2 close to a discharge port 0 is of an open structure, the side wall of the sliding cylinder 2 is abutted against the side wall of the fixed cylinder 1, the sliding cylinder 2 is slidably connected with the fixed cylinder 1 along the length direction of the fixed cylinder 1, and the sliding cylinder 2 is rotatably connected with the fixed cylinder 1; an elastic part is fixedly arranged on one side of the sliding cylinder 2, which is far away from the jet mill, the elastic part is a spring 5, and the spring 5 is coaxially arranged with the fixed cylinder 1; two ends of the sealing cylinder 4 are both of an opening structure, one end of the sealing cylinder 4 is inserted in the sliding cylinder 2 in a sliding mode along the length direction of the sealing cylinder, and one end, far away from the sliding cylinder 2, of the sealing cylinder 4 extends towards the direction close to the side wall of the fixed cylinder 1 and is fixedly connected with the fixed cylinder 1; one end of the sliding cylinder 2 close to the sealing cylinder 4 is fixedly provided with a protective film 23, and the protective film 23 is made of flexible materials.
Referring to fig. 2 and 3, a sliding groove 22 is formed in the outer side wall of the sliding cylinder 2, the sliding groove 22 is arranged in an S shape along the circumferential direction of the sliding cylinder 2, two ends of the sliding groove 22 are communicated, the sliding groove 22 is located on one side of the sliding cylinder 2 away from the spring 5, and the groove surface of the sliding groove is polished; a transmission part is arranged between the sliding cylinder 2 and the fixed cylinder 1, the transmission part is a sliding block 3, two sliding blocks 3 are arranged and are respectively positioned between the side wall of the fixed cylinder 1 and the side wall of the sliding cylinder 2, the two sliding blocks 3 are symmetrically arranged at two sides of the sliding cylinder 2 and are respectively fixedly connected with the fixed cylinder 1, and the sliding blocks 3 are arranged in the sliding groove 22 in a sliding manner along the length direction of the sliding groove 22; a plurality of discharge areas are arranged on the outer side of the sliding cylinder 2 along the circumferential direction of the sliding cylinder 2, and the discharge areas are positioned on one side of the sliding cylinder 2 close to the springs 5; the side wall of the sliding cylinder 2 is provided with a plurality of discharge holes 21, the discharge holes 21 penetrate through the side wall of the sliding cylinder 2, the discharge holes 21 are all positioned in the discharge area, and the diameters of the discharge holes 21 in different discharge areas are different; the discharge port 11 has been seted up on the 1 lateral wall of solid fixed cylinder, and discharge port 11 is located solid fixed cylinder 1 bottom, and discharge port 11 just sets up with a row material district, and the width of discharge port 11 is greater than the width of arranging the material district.
Referring to fig. 1 and 2, a material receiving assembly 6 is arranged below the fixed cylinder 1, the material receiving assembly 6 comprises a motor 61 and a material receiving cylinder 62, the motor 61 is arranged below the fixed cylinder 1, a support plate 63 is horizontally arranged between the motor 61 and the fixed cylinder 1, and the support plate 63 is coaxially arranged with an output shaft of the motor 61 and fixedly connected with the output shaft of the motor 61; the top surface of the supporting plate 63 is vertically provided with material receiving barrels 62, the top of the material receiving barrels 62 is of an open structure, the material receiving barrels 62 are arranged in the circumferential direction of the motor 61, the material receiving barrels 62 correspond to the material discharge area one by one, one material receiving barrel 62 is arranged opposite to the material discharge port 11, and the material receiving barrel 62 is fixedly connected with the supporting plate 63; the fixed cylinder 1 and the sliding cylinder 2 are both made of transparent materials, the bottom of the fixed cylinder 1 is fixedly provided with a camera 8, and the camera 8 is used for identifying the size of the particle size of powder close to the camera and transmitting corresponding signals; the controller 7 is fixedly arranged at the top of the fixed cylinder 1, the controller 7 is used for controlling the strength of airflow in the jet mill, the controller 7 is connected with the camera 8 and the motor 61, and the controller 7 responds to signals transmitted by the camera 8 and controls the working state of the motor 61 and the strength of the airflow.
The implementation principle of an air current mill system of neodymium iron boron powder of this application embodiment is: firstly, metal powder enters the sliding cylinder 2 under the action of air flow, meanwhile, the air flow can push the sliding cylinder 2 to enable the sliding cylinder 2 to move towards the direction close to the spring 5, and in the moving process of the sliding cylinder 2, the sliding block 3 slides in the sliding groove 22 to enable the sliding cylinder 2 to rotate around the axis of the sliding cylinder 2, so that the plurality of material discharging areas are sequentially located at the bottom of the sliding cylinder 2, and the metal powder with different particle sizes can be conveniently discharged in a distinguishing manner; when the sliding cylinder 2 is close to the spring 5, the spring 5 is compressed, and when the sliding cylinder 2 is required to be static, the intensity of the airflow is controlled by the controller 7, so that the pushing action of the airflow on the sliding cylinder 2 is equal to the pushing action of the spring 5 on the sliding cylinder 2, and the metal powder is conveniently discharged from a discharge hole 21 at the bottom of the sliding cylinder 2; when the sliding cylinder 2 needs to move towards the direction far away from the spring 5, the strength of the air flow is controlled through the controller 7, so that the pushing action of the air flow on the sliding cylinder 2 is smaller than the pushing action of the spring 5 on the sliding cylinder 2, and the sliding cylinder 2 can perform reciprocating linear movement and rotation in the fixed cylinder 1 along the length direction of the fixed cylinder 1; when controller 7 control air current intensity changes, control motor 61 starts, and motor 61 output shaft drives backup pad 63 and connects material section of thick bamboo 62 to rotate for corresponding material section of thick bamboo 62 removes under discharge gate 11, thereby realizes distinguishing the metal powder of different particle sizes and discharges and distinguish the receipt, makes the metal powder of different particle sizes can obtain effective utilization, thereby has improved metal powder's effective utilization.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a neodymium iron boron powder's jet mill system, sets up bin outlet (0) department at fluid energy mill, its characterized in that: the device comprises a fixed cylinder (1), wherein one end of the fixed cylinder (1) is fixedly connected with a discharge hole (0) of the jet mill and is communicated with the interior of the discharge hole (0) of the jet mill, and one end of the fixed cylinder (1) close to the discharge hole (0) is of an opening structure; a sliding cylinder (2) is coaxially arranged in the fixed cylinder (1), one end of the sliding cylinder (2) close to the discharge port (0) is of an opening structure, the sliding cylinder (2) is in sliding connection with the fixed cylinder (1) along the length direction of the fixed cylinder (1), and the sliding cylinder (2) is in rotating connection with the fixed cylinder (1); an elastic part is fixedly arranged on one side, away from the jet mill, of the sliding cylinder (2), the elastic part is positioned between the sliding cylinder (2) and the fixed cylinder (1), and the elastic part is used for enabling the sliding cylinder (2) to move along the length direction of the fixed cylinder (1); a transmission part is arranged between the sliding cylinder (2) and the fixed cylinder (1), and the transmission part is used for enabling the sliding cylinder (2) to move along the length direction of the fixed cylinder (1) and enabling the sliding cylinder (2) to rotate around the axis of the sliding cylinder (2); a discharge area is arranged on the outer side of the sliding cylinder (2), a plurality of discharge areas are arranged along the circumferential direction of the sliding cylinder (2), discharge holes (21) are formed in the side wall of the sliding cylinder (2), the discharge holes (21) penetrate through the side wall of the sliding cylinder (2), a plurality of discharge holes (21) are formed, the discharge holes (21) are all located in the discharge area, and the diameters of the discharge holes (21) in different discharge areas are different; a discharge port (11) is formed in the side wall of the fixed cylinder (1), the discharge port (11) is positioned at the bottom of the fixed cylinder (1), and the discharge port (11) is arranged opposite to a discharge area; the fixed cylinder (1) is provided with a controller (7), the controller (7) is connected with the jet mill, and the controller (7) is used for controlling the strength of air flow in the jet mill.
2. A fluid milling system for neodymium iron boron powder as claimed in claim 1, characterised in that: the transmission parts are two sliding blocks (3), the two sliding blocks (3) are respectively positioned between the side wall of the fixed cylinder (1) and the side wall of the sliding cylinder (2), and the two sliding blocks (3) are symmetrically arranged at the two sides of the sliding cylinder (2) and are respectively and fixedly connected with the fixed cylinder (1); the sliding cylinder (2) is provided with a sliding groove (22) on the outer side wall, the sliding groove (22) is arranged in an S shape along the circumferential direction of the sliding cylinder (2), two ends of the sliding groove (22) are communicated, and the sliding block (3) is arranged in the sliding groove (22) in a sliding mode along the length direction of the sliding groove (22).
3. A pneumatic milling system for neodymium-iron-boron powder according to claim 1, characterised in that: fixed cylinder (1) and sliding cylinder (2) all adopt transparent material to make, install camera (8) on fixed cylinder (1), camera (8) are connected with controller (7), and camera (8) are used for discerning the powder particle size who is close to self to transmit the signal that corresponds, controller (7) are in response to the signal that corresponds, and control air current intensity.
4. A fluid milling system for neodymium iron boron powder as claimed in claim 1, characterised in that: the sealing device is characterized in that a sealing cylinder (4) is coaxially arranged in the fixed cylinder (1), both ends of the sealing cylinder (4) are of an opening structure, one end of the sealing cylinder (4) is slidably inserted into the sliding cylinder (2) along the length direction of the sealing cylinder, and one end, far away from the sliding cylinder (2), of the sealing cylinder (4 extends towards the direction close to the side wall of the fixed cylinder (1) and is fixedly connected with the fixed cylinder (1).
5. A fluid milling system for neodymium iron boron powder according to claim 3, characterised in that: the material receiving component (6) is arranged below the fixed cylinder (1), and the material receiving component (6) is used for receiving metal powder with different particle sizes.
6. A system for the gas flow milling of neodymium iron boron powder according to claim 5, characterised in that: the material receiving assembly (6) comprises a motor (61) and a material receiving barrel (62), the motor (61) is installed below the fixed barrel (1), a supporting plate (63) is horizontally arranged between the motor (61) and the fixed barrel (1), the supporting plate (63) is coaxially arranged with an output shaft of the motor (61) and fixedly connected with the output shaft of the motor (61), and the motor (61) is connected with the controller (7); the material receiving barrel (62) is vertically arranged on the top surface of the supporting plate (63), the top of the material receiving barrel (62) is of an open structure, the material receiving barrel (62) is provided with a plurality of materials along the circumferential direction of the motor (61), the material receiving barrel (62) corresponds to the material discharging area one by one, one material receiving barrel (62) is arranged opposite to the material discharging opening (11), and the material receiving barrel (62) is fixedly connected with the supporting plate (63).
7. A fluid milling system for neodymium iron boron powder according to claim 4, characterised in that: one end of the sliding cylinder (2) close to the sealing cylinder (4) is fixedly provided with a protective film (23), and the protective film (23) is made of flexible materials.
8. A fluid milling system for neodymium iron boron powder as claimed in claim 1, characterised in that: the elastic piece is a spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210317280.3A CN114628140B (en) | 2022-03-29 | 2022-03-29 | Airflow milling system for neodymium-iron-boron powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210317280.3A CN114628140B (en) | 2022-03-29 | 2022-03-29 | Airflow milling system for neodymium-iron-boron powder |
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| Publication Number | Publication Date |
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| CN114628140A true CN114628140A (en) | 2022-06-14 |
| CN114628140B CN114628140B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210317280.3A Active CN114628140B (en) | 2022-03-29 | 2022-03-29 | Airflow milling system for neodymium-iron-boron powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115415024A (en) * | 2022-09-05 | 2022-12-02 | 桂林三棱生物科技有限公司 | Equipment and method for extracting flavone from persimmon leaves |
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| CN212681627U (en) * | 2020-06-20 | 2021-03-12 | 广州市银象石材有限公司 | Stone grading is with high-efficient screening machine |
| WO2021062647A1 (en) * | 2019-09-30 | 2021-04-08 | 江西荧光磁业有限公司 | Anti-overflow turnover type neodymium-iron-boron magnet pulverizing device |
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| CN104607293A (en) * | 2015-01-19 | 2015-05-13 | 宁波华辉磁业有限公司 | Production technology of Nd-Fe-B (neodymium-iron-boron) permanent-magnet material and corresponding jet-milling crusher |
| CN205967420U (en) * | 2016-08-05 | 2017-02-22 | 京磁材料科技股份有限公司 | Ndfeb magnets material production facility |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115415024A (en) * | 2022-09-05 | 2022-12-02 | 桂林三棱生物科技有限公司 | Equipment and method for extracting flavone from persimmon leaves |
| CN115415024B (en) * | 2022-09-05 | 2023-11-14 | 桂林三棱生物科技有限公司 | Equipment and method for extracting flavone from persimmon leaves |
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| Publication number | Publication date |
|---|---|
| CN114628140B (en) | 2022-12-27 |
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