CN204294934U - Agent device is added in a kind of sintered neodymium-iron-boron air stream millby powder process - Google Patents
Agent device is added in a kind of sintered neodymium-iron-boron air stream millby powder process Download PDFInfo
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- CN204294934U CN204294934U CN201420755883.2U CN201420755883U CN204294934U CN 204294934 U CN204294934 U CN 204294934U CN 201420755883 U CN201420755883 U CN 201420755883U CN 204294934 U CN204294934 U CN 204294934U
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Abstract
Add agent device in a kind of sintered neodymium-iron-boron air stream millby powder process, belong to neodymium iron boron powder manufacturing apparatus field.Comprise the feed introduction (2) of airflow milling (1), it is characterized in that: the sidewall of described feed introduction (2) offers and adds agent mouth (7), add and agent mouth (7) is connected with pressure control blows assembly.The utility model by realize add agent at neodymium iron boron magnetic body pulverizing process, make reagent evenly be wrapped in powder particle surface, formed one deck protection mould, effectively can prevent the contact of neodymium iron boron powder and oxygen, during die mould orientation, be conducive to the rotation of magnet.Application of the present utility model prevents additive to contact with other corrosion-prone elements such as the rubber in equipment, improves the behaviour in service of airflow milling equipment and effective production control cost greatly.
Description
Technical field
Add agent device in a kind of sintered neodymium-iron-boron air stream millby powder process, belong to neodymium iron boron powder manufacturing apparatus field.
Background technology
Add applying of agent technique along with in airflow milling powder in Sintered NdFeB magnet manufacturing, Nd Fe B alloys powder process add antioxidant and the performance impact of lubricant to Sintered NdFeB magnet more and more obvious.Select how to add antioxidant and lubricant, have very important meaning to the preparation of high-performance neodymium-iron-boron magnet.The agent mode that adds general is at present all added before powder process or after powder process by independently equipment.Add after powder process, anti-oxidant and lubrication cannot be played in pulverizing process; Add before powder process, namely before powder process by pour into after a certain proportion of antioxidant and mix lubricant material powder is housed powder tank in, powder tank is put into mixed powder machine and mix 1 hours, and then overdraught mill abrasive dust, add reagent after having ground again and put into mixed powder machine and mix 2 hours.Because most of additive has corrosiveness, reinforced belt and charging valve can be corroded, large to airflow milling device damage, rubber element in etching apparatus, often because the damage of rubber element causes equipment to leak gas increase potential safety hazard, also improve the fringe cost of product simultaneously.Be no matter that to add agent add agent or mill before mill after be all pour in tank to mix in addition again, lose time like this, efficiency is low; Mixed effect is uneven, and reagent can not be allowed fully to wrap up each neodymium iron boron fine powder.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provides that a kind of mixing efficiency is high, adds agent device in the sufficient a kind of sintered neodymium-iron-boron air stream millby powder process of fine powder parcel.
The utility model solves the technical scheme that its technical problem adopts: add agent device in this sintered neodymium-iron-boron air stream millby powder process, comprise the feed introduction of airflow milling, it is characterized in that: the sidewall of described feed introduction offers and adds agent mouth, add and agent mouth is connected with pressure control blows assembly.The feed introduction of the utility model to airflow milling is improved, and feed introduction is offered and adds agent mouth.Antioxidant and lubricant can be added while neodymium iron boron meal gas is milled to segmentation by airflow milling.This avoid the equipment corrosion to adding before agent position, realizing while abrasive dust, make neodymium iron boron fine powder surface fully wrap up reagent.
Described adds the opening bore of agent mouth on feed introduction inwall at 0.5 mm ~ 2mm.Opening bore one to control reagent dosage; Two be increase reagent penetrate effect, to ensure in feed introduction cross section that institute needs to grind meal and evenly wraps reagent.
Described pressure control blows assembly and comprises reagent pipeline, reagent bottle and reagent bottle to compressing into tracheae, reagent pipeline is connected adding agent mouth with the agent mouth that goes out of reagent bottle, the agent mouth that goes out of reagent bottle extends to reagent bottle intracavity bottom by reagent blow-off pipe, reagent bottle top is provided with opening and connects reagent bottle to compressing into tracheae, and reagent bottle is connected to pressurized nitrogen source to compressing into tracheae.Of the present utility modelly add the feed(raw material)inlet place that agent way selection is blown into airflow milling at neodymium iron boron meal and be laterally vertically blown into, ensure that the neodymium iron boron meal be blown into fully contacts with mix reagent, simultaneously the utility model utilizes the source nitrogen of high pressure to be dispelled by mix reagent to nebulize, neodymium iron boron meal is mixed with mix reagent.
Described reagent bottle and reagent bottle are provided with pressure regulator valve to the junction of compressing into tracheae.Can according to actual conditions regulate blow nitrogen be blown into air pressure.Assurance device normally runs.
The pressure in described pressurized nitrogen source is 6 MPa ~ 8MPa.In the utility model, reagent bottle graft enters the pressure of source nitrogen is 6 MPa ~ 8MPa, what adapt to neodymium iron boron meal 0.5 MPa ~ 0.6MPa under normal circumstances blows pressure, two kinds of pressure fitted can ensure that the kinetic energy that mix reagent obtains penetrates the neodymium iron boron meal operation cross section blowed just, ensure that all neodymium iron boron meal all can accept mix reagent, neodymium iron boron meal can not be penetrated again run cross section and be attached to blow on pipeline and cause reagent waste, the peak use rate of guarantee reagent.
Compared with prior art, adding the beneficial effect that agent device has in sintered neodymium-iron-boron air stream millby powder process of the present utility model is: the utility model provides a kind of allows reagent fully wrap up the equipment of fine particle in airflow milling process, eliminate corrosivity simultaneously, reach the effect of production cost of enhancing productivity, reduce.The utility model by realize add agent at neodymium iron boron magnetic body pulverizing process, make reagent evenly be wrapped at powder particle surface, formed one deck protection mould, effectively can prevent the contact of neodymium iron boron powder and oxygen, during die mould orientation, be conducive to the rotation of magnet.Application of the present utility model prevents additive to contact with other corrosion-prone elements such as the rubber in equipment, improves the behaviour in service of airflow milling equipment and effective production control cost greatly.Application of the present utility model can effectively improve products made thereby performance.
Accompanying drawing explanation
Fig. 1 adds agent apparatus structure schematic diagram in a kind of sintered neodymium-iron-boron air stream millby powder process of the utility model.
Fig. 2 adds the installation site schematic diagram of agent device in airflow milling in a kind of sintered neodymium-iron-boron air stream millby powder process of the utility model.
Wherein, 1, spirt gas port 7 at the bottom of airflow milling 2, feed introduction 3, reagent pipeline 4, reagent bottle 5, reagent blow-off pipe 6, airflow milling, add agent mouth 8, reagent bottle to compressing into tracheae 9, pressure regulator valve.
Detailed description of the invention
Fig. 1, Fig. 2 are most preferred embodiments of the present utility model, are described further below in conjunction with accompanying drawing 1 ~ 2 pair of the utility model.
With reference to Fig. 1, Fig. 2, agent device is added in a kind of sintered neodymium-iron-boron air stream millby powder process of the present utility model, the sidewall comprising the feed introduction 2 of airflow milling 1, reagent pipeline 3, reagent bottle 4, feed introduction 2 offers and adds agent mouth 7, add the opening bore of agent mouth 7 on feed introduction 2 inwall at 0.5 mm ~ 2mm, guarantee reagent rationally spray into speed; Reagent pipeline 3 is connected adding agent mouth 7 with the agent mouth that goes out of reagent bottle 4, the agent mouth that goes out of reagent bottle 4 extends to reagent bottle 4 intracavity bottom by reagent blow-off pipe 5, reagent bottle 4 top is provided with opening and connects reagent bottle to compressing into tracheae 8, reagent bottle 4 and reagent bottle are provided with pressure regulator valve 9 to the junction of compressing into tracheae 8, can regulate at any time be filled with air pressure according to actual conditions.Reagent bottle is connected to pressurized nitrogen source to compressing into tracheae 8, and the pressure in pressurized nitrogen source is 6 MPa ~ 8MPa, ensures still can be formed under reagent viscosity to be enough blown into speed.
Operation principle and the course of work as follows:
1) hydrogen is broken or disintegrating machine obtains feed introduction 2 charging of neodymium iron boron meal by airflow milling 1, and the air inlet cut-in pressure of feed introduction 2 is the source nitrogen of 0.5 MPa ~ 0.6MPa; Load the mix reagent of antioxidant and lubricant in reagent bottle 4, reagent bottle 4 cut-in pressure is the source nitrogen of 6 MPa ~ 8MPa;
2) the neodymium iron boron meal feed rate of feed introduction 2 is controlled at 3.3 kg/min ~ 5.0kg/min, it is 5 g/min ~ 10g/min that the mix reagent that Synchronization Control adds agent mouth 7 place's antioxidant and lubricant adds speed, mix reagent dispelled nebulize by the pressure of nitrogen and to mix with neodymium iron boron meal, brought into by mix reagent when neodymium iron boron meal is blown into airflow milling with air-flow, in the process that neodymium iron boron meal collides in airflow milling, reagent is also evenly attached to the surface of particle simultaneously.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (5)
1. add agent device in a sintered neodymium-iron-boron air stream millby powder process, comprise the feed introduction (2) in airflow milling (1), it is characterized in that: the sidewall of described feed introduction (2) offers and adds agent mouth (7), add and agent mouth (7) is connected with pressure control blows assembly.
2. add agent device in a kind of sintered neodymium-iron-boron air stream millby powder process according to claim 1, it is characterized in that: described adds the opening bore of agent mouth (7) on feed introduction (2) inwall at 0.5 mm ~ 2mm.
3. add agent device in a kind of sintered neodymium-iron-boron air stream millby powder process according to claim 1, it is characterized in that: described pressure control blows assembly and comprises reagent pipeline (3), reagent bottle (4) and reagent bottle are to compressing into tracheae (8), reagent pipeline (3) will add agent mouth (7) and be connected with the agent mouth that goes out of reagent bottle (4), the agent mouth that goes out of reagent bottle (4) extends to reagent bottle (4) intracavity bottom by reagent blow-off pipe (5), reagent bottle (4) top is provided with opening and connects reagent bottle to compressing into tracheae (8), reagent bottle is connected to pressurized nitrogen source to compressing into tracheae (8).
4. add agent device in a kind of sintered neodymium-iron-boron air stream millby powder process according to claim 3, it is characterized in that: described reagent bottle (4) and reagent bottle are provided with pressure regulator valve (9) to the junction of compressing into tracheae (8).
5. add agent device in a kind of sintered neodymium-iron-boron air stream millby powder process according to claim 3, it is characterized in that: the pressure in described pressurized nitrogen source is 6 MPa ~ 8MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755883.2U CN204294934U (en) | 2014-12-05 | 2014-12-05 | Agent device is added in a kind of sintered neodymium-iron-boron air stream millby powder process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755883.2U CN204294934U (en) | 2014-12-05 | 2014-12-05 | Agent device is added in a kind of sintered neodymium-iron-boron air stream millby powder process |
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| CN204294934U true CN204294934U (en) | 2015-04-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999068A (en) * | 2015-06-08 | 2015-10-28 | 中铝广西有色金源稀土股份有限公司 | Device for evenly adding antioxidant |
| CN108480648A (en) * | 2018-03-08 | 2018-09-04 | 宁波启元新材料科技有限公司 | A kind of full-automatic NdFeB magnetic powder chemical reagent atomization adding set and its method |
| CN112570719A (en) * | 2019-09-27 | 2021-03-30 | 河北泛磁聚智电子元件制造有限公司 | Additive adding method and device for preparing samarium cobalt magnetic powder |
| EP3970881A1 (en) * | 2020-09-03 | 2022-03-23 | Yantai Shougang Magnetic Materials Inc. | Device and method for the addition of liquid additives in the form of a spray during a jet milling step in a process for the manufacture of sintered ndfeb alloy magnets |
-
2014
- 2014-12-05 CN CN201420755883.2U patent/CN204294934U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999068A (en) * | 2015-06-08 | 2015-10-28 | 中铝广西有色金源稀土股份有限公司 | Device for evenly adding antioxidant |
| CN104999068B (en) * | 2015-06-08 | 2017-03-08 | 中铝广西有色金源稀土股份有限公司 | A kind of uniform device for adding antioxidant |
| CN108480648A (en) * | 2018-03-08 | 2018-09-04 | 宁波启元新材料科技有限公司 | A kind of full-automatic NdFeB magnetic powder chemical reagent atomization adding set and its method |
| CN112570719A (en) * | 2019-09-27 | 2021-03-30 | 河北泛磁聚智电子元件制造有限公司 | Additive adding method and device for preparing samarium cobalt magnetic powder |
| CN112570719B (en) * | 2019-09-27 | 2023-02-03 | 河北泛磁聚智电子元件制造有限公司 | Additive adding method and device for preparing samarium cobalt magnetic powder |
| EP3970881A1 (en) * | 2020-09-03 | 2022-03-23 | Yantai Shougang Magnetic Materials Inc. | Device and method for the addition of liquid additives in the form of a spray during a jet milling step in a process for the manufacture of sintered ndfeb alloy magnets |
| US11986836B2 (en) | 2020-09-03 | 2024-05-21 | Yantai Dongxing Magnetic Materials Inc. | Device and method for the addition of liquid additives in the form of a spray during a jet milling step in a process for the manufacture of sintered NdFeB alloy magnets |
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Address after: No.3, Nanzhi 1st Road, Zhangdian District, Zibo City, Shandong Province Patentee after: Antai AGCO Technology Co., Ltd Address before: 255000 South Branch Road, South Planning Branch Road East, Zibo science and Technology Industrial Park, Zibo City, Shandong Province Patentee before: ARCFL Technology Ltd. |