CN210125478U - A brushless magnetic separator - Google Patents
A brushless magnetic separator Download PDFInfo
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- CN210125478U CN210125478U CN201920260281.2U CN201920260281U CN210125478U CN 210125478 U CN210125478 U CN 210125478U CN 201920260281 U CN201920260281 U CN 201920260281U CN 210125478 U CN210125478 U CN 210125478U
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- 239000006148 magnetic separator Substances 0.000 title description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 273
- 229910052742 iron Inorganic materials 0.000 claims abstract description 135
- 239000000463 material Substances 0.000 claims abstract description 58
- 238000007885 magnetic separation Methods 0.000 claims abstract description 37
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 9
- 230000005389 magnetism Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000696 magnetic material Substances 0.000 abstract description 5
- 238000010408 sweeping Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 11
- 230000005484 gravity Effects 0.000 description 4
- 101000606504 Drosophila melanogaster Tyrosine-protein kinase-like otk Proteins 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及建筑垃圾循环利用工程技术领域中的磁选装置,具体是一种无刷磁选装置。The utility model relates to a magnetic separation device in the technical field of construction waste recycling engineering, in particular to a brushless magnetic separation device.
背景技术Background technique
根据《城市建筑垃圾管理规定》,建筑垃圾是指建设单位、施工单位新建、改建、扩建和拆除各类建筑物、构筑物、管网等以及居民装饰装修房屋过程中所产生的弃土、弃料及其他废弃物。随着我国人口的增加和工业化、城市化的高速发展,据统计数据,我国的建筑垃圾每年生产3.5×109 t,而且这个数据还在不断增长,未来几年将达到7.0×109 t。但是当前的利用率和资源化不足5%,与发达国家建筑垃圾利用率 75%~90%还有较大差距,如果不加强建筑垃圾治理,未来城市将被建筑垃圾“围城”甚至“埋城”。因此,建筑垃圾资源化利用是未来治理建筑垃圾最主要的途径。目前,研究现状体现,在建筑垃圾循环利用的过程中,常见排除铁杂质的方法主要为磁选法。现有常用的磁选法为在皮带机上方直接安装电磁铁直接吸引铁性材料,但该方法会因运输物料太厚而无法很彻底清理铁性材料,为此,产生了大量的磁选装置,针对磁选装置,对已有的磁选方法存在的缺点做出如下阐述:According to the "Regulations on the Management of Urban Construction Waste", construction waste refers to the spoils, waste materials and waste generated during the construction, reconstruction, expansion and demolition of various buildings, structures, pipe networks, etc. other waste. With the increase of China's population and the rapid development of industrialization and urbanization, according to statistics, the annual production of construction waste in China is 3.5 × 10 9 t, and this data is still growing, and will reach 7.0 × 10 9 t in the next few years. However, the current utilization rate and resource utilization are less than 5%, which is still far behind the 75% to 90% utilization rate of construction waste in developed countries. If construction waste management is not strengthened, the city will be "sieged" or even "buried" by construction waste in the future. ". Therefore, the resource utilization of construction waste is the most important way to control construction waste in the future. At present, the research status reflects that in the process of recycling construction waste, the common method for removing iron impurities is mainly magnetic separation. The existing commonly used magnetic separation method is to install electromagnets directly above the belt conveyor to directly attract ferrous materials, but this method cannot completely clean the ferrous materials because the transported materials are too thick. For this reason, a large number of magnetic separation devices are produced. , for the magnetic separation device, the shortcomings of the existing magnetic separation methods are explained as follows:
申请号为201820861554.4,的“新型高效磁选机”:该磁选机为一种基于扫刷的排铁装置,改装置会因扫刷的力不够而对铁矿清理不彻底。申请号为201610747777.3的“一种用于长石矿的除铁选矿装置”:该装置依靠重力使物料下落,并由多级磁选机构实现磁性材料的选取,运用过程中由于使用了多个电机选磁,因此能耗较大。申请号为20162001892.0的 “一种永磁高梯度磁选机”:依靠永久磁铁实现梯度分选,旋转过程中底部为粗磁矿,顶部为精磁矿,旋转一周才能完成一个循环,效率较低。申请号为201420800958.4, “一种悬挂式磁选机”:利用皮带输送机和磁系支架实现磁选,该结构会因皮带机上运输的物料过厚而导致磁系支架无法将磁性材料吸起,选磁性能会受到物料传输多少的影响。申请号为201420341963.3的 “一种平板式磁选机”:采用了匀料装置,使物料较为均匀分布,从而更好实现磁选,但匀料装置的匀料效果直接影响到磁选效果,一旦物料过于黏稠,很难将磁性材料与其余物料分开,因此选磁效果并不明显。The application number is 201820861554.4, the "new high-efficiency magnetic separator": the magnetic separator is an iron discharge device based on a sweeping brush, and the modified device will not completely clean the iron ore due to insufficient sweeping force. Application No. 201610747777.3 "A kind of iron removal and beneficiation device for feldspar ore": the device relies on gravity to make the material fall, and the selection of magnetic materials is realized by a multi-stage magnetic separation mechanism. Magnetic separation, so the energy consumption is large. Application No. 20162001892.0 "A Permanent Magnet High Gradient Magnetic Separator": Gradient separation is realized by relying on permanent magnets. During the rotation process, the bottom is coarse magnetic ore, and the top is refined magnetic ore. It takes one rotation to complete a cycle, and the efficiency is low. . The application number is 201420800958.4, "A suspended magnetic separator": the magnetic separation is realized by using a belt conveyor and a magnetic system bracket. This structure will cause the magnetic system bracket to be unable to absorb the magnetic material due to the thick material transported on the belt conveyor. Magnetic separation performance will be affected by how much material is transported. Application No. 201420341963.3 "a flat-plate magnetic separator": a screeding device is used to make the material more evenly distributed, so as to better realize the magnetic separation, but the screeding effect of the screeding device directly affects the magnetic separation effect. The material is too viscous, and it is difficult to separate the magnetic material from the rest of the material, so the magnetic separation effect is not obvious.
实用新型内容Utility model content
针对上述现有技术存在的问题,本实用新型提供一种无刷磁选装置。Aiming at the problems existing in the above-mentioned prior art, the present invention provides a brushless magnetic separation device.
本实用新型采用的技术方案是:一种无刷磁选装置,包括机架、进料斗、磁选装置、驱动电机和分料仓;所述磁选装置设于分料仓的上方,包括选铁装置和排铁装置,进料斗位于选铁装置的进料侧,排铁装置位于选铁装置的排料侧;所述选铁装置和排铁装置由驱动电机驱动,且选铁装置和排铁装置相向转动;物料由进料斗进入分料仓,非铁性材料直接由分料仓的出料口排出,铁性材料被选铁装置吸附并传递给排铁装置,由排铁装置传送至分料仓的排铁口排出。The technical scheme adopted by the utility model is: a brushless magnetic separation device, comprising a frame, a feeding hopper, a magnetic separation device, a driving motor and a material separation bin; the magnetic separation device is arranged above the separation material warehouse, and includes Iron selection device and iron discharge device, the feeding hopper is located on the feed side of the iron selection device, and the iron discharge device is located on the discharge side of the iron selection device; the iron selection device and the iron discharge device are driven by a driving motor, and the iron selection device It rotates opposite to the iron discharging device; the material enters the distributing bin from the feed hopper, the non-ferrous material is directly discharged from the discharge port of the distributing bin, and the ferrous material is adsorbed by the iron selecting device and transferred to the iron discharging device, and the iron discharging The device is sent to the iron discharge port of the distribution bin for discharge.
进一步的,所述选铁装置和排铁装置分别包括滚筒,磁性转换装置和磁条,所述磁条、周向均布于滚筒的外部,滚筒通过轴承座转动安装于机架上,滚筒的两端通过轴承连接有磁性转换装置,所述磁条的两端与磁性转换装置滑动配合连接。Further, the iron selecting device and the iron discharging device respectively comprise a drum, a magnetic conversion device and a magnetic strip, the magnetic strips and the circumferential direction are evenly distributed on the outside of the drum, the drum is rotated and installed on the frame through the bearing seat, and the two ends of the drum are rotated. A magnetic conversion device is connected through a bearing, and two ends of the magnetic strip are connected with the magnetic conversion device in a sliding fit.
进一步的,所述选铁装置的滚筒直径大于排铁装置的滚筒直径,安装时两者的轴心位于同一水平面上。Further, the diameter of the drum of the iron selection device is larger than the diameter of the drum of the iron discharge device, and the axes of the two are located on the same horizontal plane during installation.
进一步的,所述选铁装置和排铁装置的滚筒两端分别连接有转轴,所述选铁装置的转轴上键连接有主动齿轮,并通过紧固螺母固定;排铁装置的转轴上键连接有从动齿轮,并通过紧固螺母固定;主动齿轮和从动齿轮啮合,选铁装置加速传动排铁装置;所述选铁装置的转轴通过联轴器与驱动电机的输出轴连接。Further, the two ends of the drum of the iron selecting device and the iron discharging device are respectively connected with rotating shafts, and the rotating shaft of the iron selecting device is connected with a driving gear by a key, and is fixed by a tightening nut; the rotating shaft of the iron discharging device is connected by a key. There is a driven gear, which is fixed by a tightening nut; the driving gear is meshed with the driven gear, and the iron selection device accelerates the transmission of the iron discharge device; the rotating shaft of the iron selection device is connected with the output shaft of the driving motor through a coupling.
进一步的,所述磁性转换装置分别由接通轨道和断开轨道组成,接通轨道和断开轨道的表面设置绝缘层,接通轨道连接电源;当磁条转动于接通轨道时,磁条通电产生磁性,吸附铁性材料;当磁条、转动于断开轨道时,磁条的电路断开,磁性消失,其吸附的铁性材料落下。Further, the magnetic conversion device is composed of an on-track and an off-track respectively, the surfaces of the on-track and the off-track are provided with an insulating layer, and the on-track is connected to the power supply; when the magnetic strip rotates on the on-track, the magnetic strip Electricity generates magnetism and adsorbs ferrous materials; when the magnetic strip rotates on the off track, the circuit of the magnetic strip is disconnected, the magnetism disappears, and the ferrous material it adsorbs falls.
进一步的,所述磁条由绕线铁芯和绝缘层组成,绕线通电时产生电磁力,当绕线断电时电磁力消失。Further, the magnetic strip is composed of a winding iron core and an insulating layer, an electromagnetic force is generated when the winding is energized, and the electromagnetic force disappears when the winding is de-energized.
进一步的,所述分料仓有两个隔离开的仓体,其中一个仓体为排料仓,另一个仓体为排铁仓;所述排料仓位于选铁装置的下方,排料仓与进料斗连接,排料仓的底部位于选铁装置转动方向的末端设置出料口,排料仓与进料斗之间设置倾斜角度较小的连接面,倾斜角度为5~30度,减小下料速度,增加物料下料时与选铁装置的接触时间,提高分选效率;所述排铁仓位于排铁装置的下方,排铁仓的底端设置排铁口。Further, the silo body has two isolated silo bodies, one of which is a discharge silo, and the other silo body is an iron discharge bin; the discharge bin is located below the iron selection device, and the discharge bin is Connected with the feed hopper, the bottom of the discharge bin is located at the end of the rotation direction of the iron selection device, and a discharge port is set. The cutting speed is reduced, the contact time between the material and the iron selection device is increased, and the sorting efficiency is improved; the iron discharge bin is located below the iron discharge device, and the bottom end of the iron discharge bin is provided with an iron discharge port.
一种无刷磁选方法:1)物料由进料斗进入排料仓1,物料由排料仓1的倾斜侧壁向仓底部缓速滑落;2)磁选装置处于转动状态,由于选铁装置位于排料仓一侧设置接通轨道,磁条处于通电状态,其产生的磁性将物料中的铁性材料吸附起来,并被滚筒转动传送至排铁仓一侧,非铁性材料由出料口排出;3)选铁装置位于排铁仓一侧设有断开轨道,磁条转动到断开轨道时断电,铁性材料在自重力作用下掉落;4)排铁装置的滚筒与选铁装置的相邻侧设置有接通轨道,转动至该处的磁条带有磁性,排铁装置承接由选铁装置落下的铁性材料,并转动传送至排铁口侧,排铁装置对应排铁口上方的部位设置断开轨道,磁条转动至该处断电,铁性材料靠自重力落下,由排铁口排出,实现普通物料和铁性材料的分选。A brushless magnetic separation method: 1) The material enters the
与现有技术相比,本实用新型为无刷选磁装置,排磁效果较好,不会因扫刷力不够而使排磁不彻底;选磁为双滚筒结构,选磁和排磁功能分明,并由不同通道排出;选磁过程中使用单电机驱动,节能效果良好;采用磁性控制装置,能自动分选磁性材料。Compared with the prior art, the utility model is a brushless magnetic separation device, which has better magnetic removal effect, and will not cause incomplete magnetic removal due to insufficient sweeping force; It is clear and discharged from different channels; a single motor is used to drive the magnetic separation process, and the energy saving effect is good; the magnetic control device can be used to automatically separate the magnetic materials.
附图说明Description of drawings
图1是本实用新型的整体结构图。Fig. 1 is the overall structure diagram of the present invention.
图2是图1的A-A向视图。FIG. 2 is a view taken along the line A-A of FIG. 1 .
图3是图1的B-B处的局部放大图。FIG. 3 is a partial enlarged view at B-B of FIG. 1 .
图4是磁条的内部结构。Figure 4 is the internal structure of the magnetic strip.
图中,1.机架,2.进料斗,3.磁选装置,3-1.选铁装置,3-11.滚筒,3-12.磁性转换装置,3-121.接通轨道,3-122.断开轨道,3-13.磁条,3-131.绕线铁芯,3-132.绝缘层,3-14.轴承座,3-2.排铁装置,3-21.滚筒,3-22.磁性转换装置,3-221.接通轨道,3-222.断开轨道,3-23.磁条,3-231.绕线铁芯,3-232.绝缘层,3-24.轴承座,4.驱动电机,5.分料仓,5-1.排料仓,5-2.排铁仓,5-3.出料口,5-4.排铁口,6.主动齿轮,7.从动齿轮,8.联轴器,9.紧固螺母。In the figure, 1. Frame, 2. Feeding hopper, 3. Magnetic separation device, 3-1. Iron selection device, 3-11. Drum, 3-12. Magnetic conversion device, 3-121. Connecting track, 3-122. Disconnecting track, 3-13. Magnetic strip, 3-131. Wound core, 3-132. Insulation layer, 3-14. Bearing seat, 3-2. Iron discharge device, 3-21. Roller, 3-22. Magnetic conversion device, 3-221. On track, 3-222. Off track, 3-23. Magnetic strip, 3-231. Wound core, 3-232. Insulation layer, 3 -24. Bearing seat, 4. Drive motor, 5. Feed bin, 5-1. Discharge bin, 5-2. Iron discharge bin, 5-3. Discharge port, 5-4. Iron discharge port, 6 . Driving gear, 7. Driven gear, 8. Coupling, 9. Fastening nut.
具体实施方式Detailed ways
下面结合附图对本实用新型作进一步说明。The utility model will be further described below in conjunction with the accompanying drawings.
如图1至图4所示,无刷磁选装置,包括机架1、进料斗2、磁选装置3、驱动电机4和分料仓5;所述磁选装置3设于分料仓5的上方,包括选铁装置3-1和排铁装置3-2,进料斗2位于选铁装置3-1的进料侧,排铁装置3-2位于选铁装置3-1的排料侧;所述选铁装置3-1和排铁装置3-2由驱动电机4驱动,且选铁装置3-1和排铁装置3-2相向转动;物料由进料斗2进入分料仓5,非铁性材料直接由分料仓5的出料口排出,铁性材料被选铁装置3-1吸附并传递给排铁装置3-2,由排铁装置3-2传送至分料仓5的排铁口排出。As shown in Figures 1 to 4, the brushless magnetic separation device includes a
如图1和图3所示,所述选铁装置3-1和排铁装置3-2分别包括滚筒3-11、3-21,磁性转换装置3-12、3-22和磁条3-13、3-23,所述磁条3-13、3-23周向均布于滚筒3-11、3-21的外部,滚筒3-11、3-21通过轴承座3-14、3-24转动安装于机架1上,滚筒3-11、3-21的两端通过轴承连接有磁性转换装置3-12、3-22,所述磁条3-13、3-23的两端与磁性转换装置3-12、3-22滑动配合连接。As shown in FIG. 1 and FIG. 3 , the iron selecting device 3-1 and the iron discharging device 3-2 respectively include drums 3-11 and 3-21, magnetic conversion devices 3-12 and 3-22 and magnetic strips 3- 13, 3-23, the magnetic strips 3-13, 3-23 are evenly distributed on the outside of the drums 3-11, 3-21, and the drums 3-11, 3-21 rotate through the bearing seats 3-14, 3-24 Installed on the
如图2所示,所述选铁装置3-1的滚筒3-11直径大于排铁装置3-2的滚筒3-21直径,安装时两者的轴心位于同一水平面上。As shown in Figure 2, the diameter of the drum 3-11 of the iron selection device 3-1 is larger than the diameter of the drum 3-21 of the iron discharge device 3-2, and the axes of the two are located on the same horizontal plane during installation.
如图1所示,所述选铁装置3-1和排铁装置3-2的滚筒3-11、3-21两端分别连接有转轴,所述选铁装置3-1的转轴上键连接有主动齿轮6,并通过紧固螺母9固定;排铁装置3-2的转轴上键连接有从动齿轮7,并通过紧固螺母10固定;主动齿轮6和从动齿轮7啮合,选铁装置3-1加速传动排铁装置;所述选铁装置3-1的转轴通过联轴器8与驱动电机4的输出轴连接。As shown in FIG. 1 , the two ends of the drums 3-11 and 3-21 of the iron selecting device 3-1 and the iron discharging device 3-2 are respectively connected with rotating shafts, and the rotating shafts of the iron selecting device 3-1 are connected by keys. There is a driving gear 6, which is fixed by a tightening nut 9; a driven gear 7 is connected with a key on the rotating shaft of the iron discharge device 3-2, and is fixed by a tightening
如图3所示,所述磁性转换装置3-12、3-22分别由接通轨道3-121、3-221和断开轨道3-122、3-222组成,接通轨道3-121、3-221和断开轨道3-122、3-222的表面设置绝缘层,接通轨道3-121、3-221连接电源;当磁条3-13、3-23转动于接通轨道3-121、3-221时,磁条3-13、3-23通电产生磁性,吸附铁性材料;当磁条3-13、3-23转动于断开轨道3-122、3-222时,磁条3-13、3-23的电路断开,磁性消失,其吸附的铁性材料落下。As shown in FIG. 3 , the magnetic conversion devices 3-12 and 3-22 are respectively composed of connecting tracks 3-121 and 3-221 and disconnecting tracks 3-122 and 3-222. 3-221 and the surface of the disconnected rails 3-122, 3-222 are provided with insulating layers, and the connected rails 3-121 and 3-221 are connected to the power supply; when the magnetic strips 3-13 and 3-23 rotate on the connected rails 3- 121, 3-221, the magnetic strips 3-13, 3-23 are electrified to generate magnetism, attracting ferrous materials; when the magnetic strips 3-13, 3-23 rotate on the disconnected tracks The circuits of strips 3-13 and 3-23 are disconnected, the magnetism disappears, and the ferrous material they adsorb falls.
如图4所示,所述磁条3-13、3-23由绕线铁芯3-131、3-231和绝缘层3-132、3-232组成,绕线通电时产生电磁力,当绕线断电时电磁力消失。As shown in Figure 4, the magnetic strips 3-13 and 3-23 are composed of winding iron cores 3-131 and 3-231 and insulating layers 3-132 and 3-232. When the windings are energized, electromagnetic force is generated. The electromagnetic force disappears when the winding is powered off.
如图2所示,所述分料仓5有两个隔离开的仓体,其中一个仓体为排料仓5-1,另一个仓体为排铁仓5-2;所述排料仓5-1位于选铁装置3-1的下方,排料仓5-1与进料斗2连接,排料仓5-1的底部位于选铁装置3-1转动方向的末端设置出料口5-3,排料仓5-1与进料斗2之间设置倾斜角度较小的连接面,倾斜角度为5~30度,减小下料速度,增加物料下料时与选铁装置3-1的接触时间,提高分选效率;所述排铁仓5-2位于排铁装置3-2的下方,排铁仓5-2的底端设置排铁口5-4。As shown in FIG. 2 , the dividing bin 5 has two isolated bin bodies, one of which is the discharging bin 5-1, and the other bin body is the iron discharging bin 5-2; the discharging bin 5-1 is located below the iron selection device 3-1, the discharge bin 5-1 is connected with the feed hopper 2, and the bottom of the discharge bin 5-1 is located at the end of the rotation direction of the iron selection device 3-1. -3, a connecting surface with a small inclination angle is set between the discharge bin 5-1 and the feeding hopper 2, the inclination angle is 5~30 degrees, the cutting speed is reduced, and the iron selection device 3- is increased when the material is unloaded. 1 contact time, improving the sorting efficiency; the iron discharge bin 5-2 is located below the iron discharge device 3-2, and the bottom end of the iron discharge bin 5-2 is provided with an iron discharge port 5-4.
一种无刷磁选方法:1)物料由进料斗2进入排料仓5-1,物料由排料仓5-1的倾斜侧壁向仓底部缓速滑落;2)磁选装置3处于转动状态,由于选铁装置3-1位于排料仓5-1一侧设置接通轨道3-121,磁条3-13处于通电状态,其产生的磁性将物料中的铁性材料吸附起来,并被滚筒3-11转动传送至排铁仓5-2一侧,非铁性材料由出料口5-3排出;3)选铁装置3-1位于排铁仓5-2一侧设有断开轨道3-122,磁条3-13转动到断开轨道3-122时断电,铁性材料在自重力作用下掉落;4)排铁装置3-2的滚筒3-21与选铁装置3-1的相邻侧设置有接通轨道3-221,转动至该处的磁条3-23带有磁性,排铁装置3-2承接由选铁装置3-1落下的铁性材料,并转动传送至排铁口5-4侧,排铁装置3-2对应排铁口5-4上方的部位设置断开轨道3-222,磁条3-23转动至该处断电,铁性材料靠自重力落下,由排铁口5-4排出,实现普通物料和铁性材料的分选。A brushless magnetic separation method: 1) The material enters the discharge bin 5-1 from the feeding hopper 2, and the material slowly slides down from the inclined side wall of the discharge bin 5-1 to the bottom of the bin; 2) The magnetic separation device 3 is in In the rotating state, because the iron selection device 3-1 is located on the side of the discharge bin 5-1, the connecting track 3-121 is set, and the magnetic strip 3-13 is in the energized state, and the magnetism generated by it will adsorb the ferrous material in the material, It is rotated and transferred by the drum 3-11 to the side of the iron discharge bin 5-2, and the non-ferrous material is discharged from the discharge port 5-3; 3) The iron selection device 3-1 is located on the side of the iron discharge bin 5-2. Disconnect the track 3-122, when the magnetic strip 3-13 turns to disconnect the track 3-122, the power is cut off, and the ferrous material falls under the action of self-gravity; 4) The roller 3-21 of the iron discharge device 3-2 and the selector The adjacent side of the iron device 3-1 is provided with a connecting track 3-221, the magnetic strip 3-23 rotated to this place is magnetic, and the iron discharge device 3-2 receives the iron falling from the iron selection device 3-1. The material is rotated and transferred to the side of the iron discharge port 5-4. The iron discharge device 3-2 is provided with a disconnection track 3-222 at the position above the iron discharge port 5-4. The ferrous material falls by its own gravity and is discharged from the iron discharge port 5-4 to realize the sorting of common materials and ferrous materials.
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