WO2021062648A1 - 一种分级式高精度的钕铁硼气流粉碎机 - Google Patents

一种分级式高精度的钕铁硼气流粉碎机 Download PDF

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WO2021062648A1
WO2021062648A1 PCT/CN2019/109494 CN2019109494W WO2021062648A1 WO 2021062648 A1 WO2021062648 A1 WO 2021062648A1 CN 2019109494 W CN2019109494 W CN 2019109494W WO 2021062648 A1 WO2021062648 A1 WO 2021062648A1
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fixedly connected
sprocket
crushing chamber
cylinder
precision
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PCT/CN2019/109494
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English (en)
French (fr)
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朱明�
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江西荧光磁业有限公司
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Publication of WO2021062648A1 publication Critical patent/WO2021062648A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/06—Jet mills

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  • the invention relates to the technical field of crushing equipment, in particular to a hierarchical high-precision neodymium iron boron jet mill.
  • NdFeB magnets are tetragonal crystals formed by neodymium, iron, and boron. NdFeB materials have excellent magnetic properties, so they are widely used in electronics, electrical machinery, medical equipment, aerospace and other fields.
  • NdFeB The process flow of NdFeB can be roughly divided into batching, smelting, hydrogen crushing, jet milling, forming, isostatic pressing, oil stripping, sintering, etc.
  • the NdFeB raw materials are pulverized and refined by jet milling, which is convenient for later molding.
  • Some pulverizers have the disadvantages that when the volume of the material is different, under the action of gravity and the split impeller, the height of the material in the pulverizer is different, resulting in that some raw materials cannot be pulverized completely and the pulverization efficiency is low.
  • the purpose of the present invention is to provide a hierarchical high-precision neodymium-iron-boron jet mill to solve the problem that when the volume of the material is different, the height of the raw material in the pulverizer is different under the action of gravity and the split impeller. , Resulting in the problem that some raw materials cannot be crushed thoroughly and the crushing efficiency is low.
  • a hierarchical high-precision neodymium iron boron jet mill including a frame, the upper end of the frame is fixedly connected with a cylinder, and the lower end of the cylinder is fixedly connected with Discharge port, the cylinder body is sequentially provided with a sorting chamber, a secondary crushing chamber, and a primary crushing chamber from top to bottom.
  • the sorting chamber is rotatably connected with a grading wheel, and the upper end of the grading wheel extends outside the cylinder, And the upper end of the grading wheel is fixedly connected with a discharge port, the left end of the cylinder is fixedly connected with a first motor, the upper end of the first motor is fixedly connected with a first sprocket, and the outer side of the upper end of the grading wheel is fixedly connected with a second sprocket , A chain is arranged between the first sprocket and the second sprocket, the secondary crushing chamber and the primary crushing chamber are fixedly connected with symmetrically arranged nozzles, and the right end of the primary crushing chamber is fixedly connected with a screw feeder
  • the lower left end of the screw feeder is provided with a discharge port extending into the first-level crushing chamber, the upper right end of the screw feeder is fixedly connected with a feed port, and the right end of the screw feeder is sequentially fixedly connected with a coupling Shaft and second motor
  • the lowest point of the discharge opening is higher than the lowest point of the frame.
  • the first sprocket, the second sprocket and the chain are in meshing connection.
  • each of the four nozzles in a group corresponds to the secondary pulverization chamber and the primary pulverization chamber one-to-one, and the air flows from each group of nozzles converge at the same point.
  • the length of the spiral blades in the screw feeder is greater than the distance between the feeding port and the feeding port.
  • the lowest point of the discharging port is higher than the highest point of the nozzle in the primary crushing chamber.
  • the beneficial effects of the present invention are: the hierarchical high-precision neodymium iron boron jet mill adopts the design of hierarchical pulverization to improve the accuracy of pulverization.
  • the raw materials of different weights can be used in the split impeller and its own gravity. Under the action of pulverizer, the height in the crusher is different. Therefore, through the nozzles of different heights in the primary crushing chamber and the secondary crushing chamber, it is ensured that all the raw materials of different heights can be crushed, which improves the work efficiency and avoids the phenomenon that the raw materials need to be crushed repeatedly. ,decrease productivity.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.
  • Figure 2 is a schematic diagram of the front structure of the present invention.
  • Figure 3 is a schematic diagram of the side structure of the present invention.
  • Figure 4 is a schematic top view of the structure of the present invention.
  • a hierarchical high-precision neodymium iron boron jet mill including a frame 1, a barrel 2, a discharge port 3, a sorting chamber 4, and a second stage Crushing chamber 5, primary crushing chamber 6, classification wheel 7, discharge port 8, first motor 9, first sprocket 10, second sprocket 11, chain 12, nozzle 13, screw feeder 14, unloading Port 15, feed port 16, coupling 17 and second motor 18, the upper end of the frame 1 is fixedly connected with a cylinder 2, and the lower end of the cylinder 2 is fixedly connected with a discharge port 3, and the cylinder 2 is from top to bottom
  • a sorting chamber 4, a secondary crushing chamber 5, and a primary crushing chamber 6 are arranged in sequence.
  • the sorting chamber 4 is rotatably connected with a grading wheel 7, the upper end of the grading wheel 7 extends out of the cylinder 2, and the upper end of the grading wheel 7 is fixedly connected There is a discharge port 8, the left end of the cylinder 2 is fixedly connected with a first motor 9, the upper end of the first motor 9 is fixedly connected with a first sprocket 10, and the outer side of the upper end of the grading wheel 7 is fixedly connected with a second sprocket 11, the first sprocket A chain 12 is arranged between the second sprocket 10 and the second sprocket 11.
  • Symmetrically arranged nozzles 13 are fixedly connected in the secondary crushing chamber 5 and the primary crushing chamber 6, and the screw feeder 14 is fixedly connected to the right end of the primary crushing chamber 6.
  • the lower end of the left side of the feeder 14 is provided with a discharge port 15 extending into the first-level crushing chamber 6, the upper end of the right side of the screw feeder 14 is fixedly connected with a feed port 16, and the right end of the screw feeder 14 is fixedly connected with a coupling in turn ⁇ 17 and a second motor 18;
  • the lowest point of the discharge port 3 is higher than the lowest point of the frame 1, to ensure that excess raw materials can be discharged from the discharge port 3;
  • first sprocket 10, the second sprocket 11, and the chain 12 are in meshing connection.
  • the grading wheel 7 is driven to rotate, and the grading wheel is improved.
  • each of the four nozzles 13 in a group corresponds to the secondary pulverizing chamber 5 and the primary pulverizing chamber 6, and the air flows from each group of nozzles 13 converge at the same point and converge at one point through the nozzle 13 Crushed granular raw materials;
  • the length of the spiral blades in the screw feeder 14 is greater than the distance between the feed opening 15 and the feed opening 16, so as to ensure that the raw materials entering from the feed opening 16 can flow out from the feed opening 15;
  • the lowest point of the feed opening 15 is higher than the highest point of the nozzle 13 in the primary crushing chamber 6 to ensure that the raw material falling from the feed opening 15 is hit by the nozzle 13 in the primary crushing chamber 6 and crushed.
  • the fine powder that meets the particle size requirements is discharged from the discharge port 8.
  • the particles that do not meet the requirements fall. Because of the different sizes of the particles, they fall into the secondary crushing chamber 5 and 5 respectively.
  • the nozzle 13 is hit and crushed again, and screening is performed again. Finally, the first motor 9 and the second motor 18 are turned off, and the raw materials that cannot be crushed are discharged from the discharge port 3.

Abstract

一种分级式高精度的钕铁硼气流粉碎机，包括机架(1)，机架(1)内上端固定连接有筒体(2)，筒体(2)下端固定连接有排料口(3)，筒体(2)内从上往下依次设置有分选室(4)、二级粉碎室(5)和一级粉碎室(6)，分选室(4)内转动连接有分级轮(7)，分级轮(7)上端往筒体(2)外延伸，筒体(2)左端固定连接有第一电机(9)，第一电机(9)上端固定连接有第一链轮(10)，分级轮(7)上端外侧固定连接有第二链轮(11)，第一链轮(10)和第二链轮(11)间设置有链条(12)，二级粉碎室(5)和一级粉碎室(6)内固定连接有对称设置的喷嘴(13)，一级粉碎室(6)右端固定连接有螺旋进料机(14)。该分级式高精度的钕铁硼气流粉碎机，采用分级粉碎的设计，提高粉碎的精确度，提高工作的效率，避免出现原料需要重复粉碎的现象。

Description

一种分级式高精度的钕铁硼气流粉碎机 技术领域
本发明涉及粉碎设备技术领域，具体为一种分级式高精度的钕铁硼气流粉碎机。
背景技术
钕铁硼磁铁是由钕、铁、硼形成的四方晶系晶体，钕铁硼材料具有优异的磁性能，因此在电子、电力机械、医疗器械、航空航天等领域得到广泛的应用。
钕铁硼的工艺流程大致分为配料、熔炼、氢碎、气流磨、成型、等静压、剥油、烧结等，通过气流磨将钕铁硼原料粉碎细化，便于后期的成型，但是现有的粉碎机存在当物料体积不同时，在重力和分叶轮的作用下，原料在粉碎机内的高度不同，造成部分原料不能被粉碎彻底，粉碎效率低的缺点。
发明内容
本发明的目的在于提供一种分级式高精度的钕铁硼气流粉碎机，以解决上述背景技术中提出当物料体积不同时，在重力和分叶轮的作用下，原料在粉碎机内的高度不同，造成部分原料不能被粉碎彻底，粉碎效率低的问题。
为实现上述目的，本发明提供如下技术方案：一种分级式高精度的钕铁硼气流粉碎机，包括机架，所述机架内上端固定连接有筒体，所述筒体下端固定连接有排料口，所述筒体内从上往下依次设置有分选室、二级粉碎室和一级粉碎室，所述分选室内转动连接有分级轮，所述分级轮上端往筒体外延伸，且分级轮上端固定连接有出料口，所述筒体左端固定连接有第一电机，所述第一电机上端固定连接有第一链轮，所述分级轮上端外侧固定连接有第二链轮，所述第一链轮和第二链轮间设置有链条，所述二级粉碎室和一级粉碎室内固定连接有对称设置的喷嘴，所述一级粉碎室右端固定连接有螺旋进料机，所述螺旋进料机左侧下端往一级粉碎室内延伸设置有下料口，所述螺 旋进料机右侧上端固定连接有进料口，所述螺旋进料机右端依次固定连接有联轴器和第二电机。
优选的，所述排料口的最低点高于机架的最低点。
优选的，所述第一链轮、第二链轮和链条为啮合连接。
优选的，所述喷嘴每4个为一组分别与二级粉碎室和一级粉碎室一一对应，且每组喷嘴喷出的气流在同一点汇合。
优选的，所述螺旋进料机内螺旋叶片的长度大于下料口到进料口间的距离。
优选的，所述下料口的最低点高于一级粉碎室内喷嘴的最高点。
与现有技术相比，本发明的有益效果是：该分级式高精度的钕铁硼气流粉碎机，采用分级粉碎的设计，提高粉碎的精确度，不同重量的原料，在分叶轮和自身重力的作用下在粉碎机内的高度不同，因此通过一级粉碎室和二级粉碎室内不同高度的喷嘴，确保不同高度的原料全部可以被粉碎，提高工作的效率，避免出现原料需要重复粉碎的现象，降低工作效率。
附图说明
图1为本发明立体结构示意图；
图2为本发明正面结构示意图；
图3为本发明侧面结构示意图；
图4为本发明俯视结构示意图。
图中：1、机架；2、筒体；3、排料口；4、分选室；5、二级粉碎室；6、一级粉碎室；7、分级轮；8、出料口；9、第一电机；10、第一链轮；11、第二链轮；12、链条；13、喷嘴；14、螺旋进料机；15、下料口；16、进料口；17、联轴器；18、第二电机。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行 清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1-4，本发明提供一种技术方案：一种分级式高精度的钕铁硼气流粉碎机，包括机架1、筒体2、排料口3、分选室4、二级粉碎室5、一级粉碎室6、分级轮7、出料口8、第一电机9、第一链轮10、第二链轮11、链条12、喷嘴13、螺旋进料机14、下料口15、进料口16、联轴器17和第二电机18，机架1内上端固定连接有筒体2，筒体2下端固定连接有排料口3，筒体2内从上往下依次设置有分选室4、二级粉碎室5和一级粉碎室6，分选室4内转动连接有分级轮7，分级轮7上端往筒体2外延伸，且分级轮7上端固定连接有出料口8，筒体2左端固定连接有第一电机9，第一电机9上端固定连接有第一链轮10，分级轮7上端外侧固定连接有第二链轮11，第一链轮10和第二链轮11间设置有链条12，二级粉碎室5和一级粉碎室6内固定连接有对称设置的喷嘴13，一级粉碎室6右端固定连接有螺旋进料机14，螺旋进料机14左侧下端往一级粉碎室6内延伸设置有下料口15，螺旋进料机14右侧上端固定连接有进料口16，螺旋进料机14右端依次固定连接有联轴器17和第二电机18；
进一步的，排料口3的最低点高于机架1的最低点，确保多余的原料可以从排料口3排出；
进一步的，第一链轮10、第二链轮11和链条12为啮合连接，通过第一链轮10、第二链轮11和链条12的配合使用，带动分级轮7转动，同时提高分级轮7和第一电机9间的稳定性；
进一步的，喷嘴13每4个为一组分别与二级粉碎室5和一级粉碎室6一一对应，且每组喷嘴13喷出的气流在同一点汇合，通过喷嘴13汇合在一点，将颗粒状的原料击碎；
进一步的，螺旋进料机14内螺旋叶片的长度大于下料口15到进料口16间的距离，确保从进料口16进入的原料可以从下料口15流出；
进一步的，下料口15的最低点高于一级粉碎室6内喷嘴13的最高点，确保从下料口15落下的原料被一级粉碎室6内喷嘴13击中并粉碎。
工作原理：首先将机架1放好，往进料口16加入原料，打开第一电机9和第二电机18，第二电机18带动联轴器17转动，联轴器17带动螺旋进料机14内的轴转动，从而轴外侧的叶片将原料移动到进料口16处，并落在一级粉碎室6内，一级粉碎室6内的喷嘴13在一点汇合，并将落下的原料粉碎，第一电机9带动第一链轮10转动，第一链轮10带动链条12转动，链条12带动第二链轮11转动，从而分级轮7转动，粉碎后的原料在上升气流的作用下向分选室4输送，在分级轮7的作用下，达到粒度要求的细粉由出料口8排出，未达到要求的颗粒下落，由于颗粒的大小不同，因此分别落在二级粉碎室5和一级粉碎室6中，被喷嘴13再次击中粉碎，再次进行筛选，最后关闭第一电机9和第二电机18，没能粉碎的原料从排料口3排出。
最后应当说明的是，以上内容仅用以说明本发明的技术方案，而非对本发明保护范围的限制，本领域的普通技术人员对本发明的技术方案进行的简单修改或者等同替换，均不脱离本发明技术方案的实质和范围。

Claims (6)

  1. 一种分级式高精度的钕铁硼气流粉碎机，包括机架(1)，其特征在于：所述机架(1)内上端固定连接有筒体(2)，所述筒体(2)下端固定连接有排料口(3)，所述筒体(2)内从上往下依次设置有分选室(4)、二级粉碎室(5)和一级粉碎室(6)，所述分选室(4)内转动连接有分级轮(7)，所述分级轮(7)上端往筒体(2)外延伸，且分级轮(7)上端固定连接有出料口(8)，所述筒体(2)左端固定连接有第一电机(9)，所述第一电机(9)上端固定连接有第一链轮(10)，所述分级轮(7)上端外侧固定连接有第二链轮(11)，所述第一链轮(10)和第二链轮(11)间设置有链条(12)，所述二级粉碎室(5)和一级粉碎室(6)内固定连接有对称设置的喷嘴(13)，所述一级粉碎室(6)右端固定连接有螺旋进料机(14)，所述螺旋进料机(14)左侧下端往一级粉碎室(6)内延伸设置有下料口(15)，所述螺旋进料机(14)右侧上端固定连接有进料口(16)，所述螺旋进料机(14)右端依次固定连接有联轴器(17)和第二电机(18)。
  2. 根据权利要求1所述的一种分级式高精度的钕铁硼气流粉碎机，其特征在于：所述排料口(3)的最低点高于机架(1)的最低点。
  3. 根据权利要求1所述的一种分级式高精度的钕铁硼气流粉碎机，其特征在于：所述第一链轮(10)、第二链轮(11)和链条(12)为啮合连接。
  4. 根据权利要求1所述的一种分级式高精度的钕铁硼气流粉碎机，其特征在于：所述喷嘴(13)每4个为一组分别与二级粉碎室(5)和一级粉碎室(6)一一对应，且每组喷嘴(13)喷出的气流在同一点汇合。
  5. 根据权利要求1所述的一种分级式高精度的钕铁硼气流粉碎机，其特征在于：所述螺旋进料机(14)内螺旋叶片的长度大于下料口(15)到进料口(16)间的距离。
  6. 根据权利要求1所述的一种分级式高精度的钕铁硼气流粉碎机，其特征在于：所述下料口(15)的最低点高于一级粉碎室(6)内喷嘴(13)的最 高点。
PCT/CN2019/109494 2019-09-30 2019-09-30 一种分级式高精度的钕铁硼气流粉碎机 WO2021062648A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200688A1 (de) * 2002-01-10 2003-07-24 Vip Domotec S A R L Verfahren zum tribo-mechanischen Aktivieren von Silikatmineralien, nämlich natürlichen Zeotithen
CN201030320Y (zh) * 2006-12-28 2008-03-05 武汉宝特龙信息科技有限公司 气流粉碎机双层三枪交错式喷嘴结构
CN203990835U (zh) * 2014-08-25 2014-12-10 邢台九明科技有限公司 流化床超微气流粉碎机
CN106076562A (zh) * 2016-08-16 2016-11-09 攀枝花市九鼎智远知识产权运营有限公司 流化床气流粉碎机
CN106824452A (zh) * 2017-02-10 2017-06-13 广州中卓智能装备有限公司 流化床气流磨粉碎机智能装备系统
CN209885960U (zh) * 2019-03-28 2020-01-03 赣州嘉通新材料有限公司 一种分级式高精度的钕铁硼气流粉碎机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200688A1 (de) * 2002-01-10 2003-07-24 Vip Domotec S A R L Verfahren zum tribo-mechanischen Aktivieren von Silikatmineralien, nämlich natürlichen Zeotithen
CN201030320Y (zh) * 2006-12-28 2008-03-05 武汉宝特龙信息科技有限公司 气流粉碎机双层三枪交错式喷嘴结构
CN203990835U (zh) * 2014-08-25 2014-12-10 邢台九明科技有限公司 流化床超微气流粉碎机
CN106076562A (zh) * 2016-08-16 2016-11-09 攀枝花市九鼎智远知识产权运营有限公司 流化床气流粉碎机
CN106824452A (zh) * 2017-02-10 2017-06-13 广州中卓智能装备有限公司 流化床气流磨粉碎机智能装备系统
CN209885960U (zh) * 2019-03-28 2020-01-03 赣州嘉通新材料有限公司 一种分级式高精度的钕铁硼气流粉碎机

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