CN217313881U - Dry magnetic separator - Google Patents
Dry magnetic separator Download PDFInfo
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- CN217313881U CN217313881U CN202220366107.8U CN202220366107U CN217313881U CN 217313881 U CN217313881 U CN 217313881U CN 202220366107 U CN202220366107 U CN 202220366107U CN 217313881 U CN217313881 U CN 217313881U
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- 239000006148 magnetic separator Substances 0.000 title claims abstract description 26
- 239000012141 concentrate Substances 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 33
- 238000007885 magnetic separation Methods 0.000 abstract description 11
- 239000000696 magnetic material Substances 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Centrifugal Separators (AREA)
Abstract
本实用新型公开了一种干式磁选机，包括：外壳，安装到外壳内的旋转磁辊；旋转磁辊包括：旋转套筒，安装在旋转套筒内且不随旋转套筒旋转的扇形磁体；在旋转磁辊的径向截面上，扇形磁体的圆心角为10°~100°；沿旋转套筒旋转方向外壳上依次设置进料口、精矿排出口和尾矿排出口。本实用新型的干式磁选机，减小扇形磁体的圆心角，从而减小扇形磁体的体积和磁性材料的用量，节约磁性材料成本。在磁选时，附着在旋转套筒表面的铁粉输送路程短，铁粉附着时间短，能够大大减小铁粉对旋转套筒表面磨损，增加旋转套筒的使用寿命，提高铁粉磁选效率；附着在旋转套筒表面的弱磁性铁粉也能从精矿排出口排出，大大降低了尾矿中磁性铁粉含量，提高磁性铁粉选出率。
The utility model discloses a dry magnetic separator, comprising: a casing, a rotating magnetic roller installed in the casing; the rotating magnetic roller comprises: a rotating sleeve, a sector-shaped magnet installed in the rotating sleeve and not rotating with the rotating sleeve ; On the radial section of the rotating magnetic roller, the central angle of the sector magnet is 10°~100°; along the rotation direction of the rotating sleeve, the shell is sequentially provided with a feeding port, a concentrate discharge port and a tailings discharge port. The dry magnetic separator of the utility model reduces the central angle of the sector-shaped magnet, thereby reducing the volume of the sector-shaped magnet and the amount of magnetic material used, thereby saving the cost of the magnetic material. During magnetic separation, the conveying distance of the iron powder attached to the surface of the rotating sleeve is short, and the adhesion time of the iron powder is short, which can greatly reduce the wear of the iron powder on the surface of the rotating sleeve, increase the service life of the rotating sleeve, and improve the magnetic separation of iron powder. Efficiency; the weak magnetic iron powder attached to the surface of the rotating sleeve can also be discharged from the concentrate discharge port, which greatly reduces the content of magnetic iron powder in the tailings and improves the selection rate of magnetic iron powder.
Description
技术领域technical field
本实用新型涉及一种干式磁选机。The utility model relates to a dry magnetic separator.
背景技术Background technique
干式磁选机是针对干燥的磁性矿物进行分选的磁力选矿机械，干式磁选机靠磁力和离心力分选，要求被分选的矿物含水量低，颗粒之间可以自由移动、成独立的自由状态，相比于湿式磁选机，干式磁选机具备结构简单、处理量大、操作方便、易于维护的优点。The dry magnetic separator is a magnetic beneficiation machine for the separation of dry magnetic minerals. The dry magnetic separator is separated by magnetic force and centrifugal force, and the water content of the separated minerals is required to be low. Compared with the wet magnetic separator, the dry magnetic separator has the advantages of simple structure, large processing capacity, convenient operation and easy maintenance.
现有的干式磁选机包括外壳和旋转磁辊，外壳的上端开设有进料口，外壳的下端开设有精矿排出口和非磁性物质的尾矿排出口，旋转磁辊安装在外壳中，旋转磁辊包括旋转套筒，固定安装在旋转套筒内的旋转轴上的扇形磁体，扇形磁体固定安装在旋转轴的正下方，扇形磁体与旋转套筒同圆心并靠近旋转套筒安装，精矿排出口和尾矿排出口均位于扇形薄壳状磁体的下方，精矿排出口位于旋转套筒旋转方向上尾矿排出口的后方，这样原料经过进料口进入外壳，在外壳和旋转磁辊之间通过磁体的作用和旋转套筒的旋转，完成磁性铁粉和非磁性物质的分离，磁性铁粉由精矿排出口排出，灰尘等非磁性物质由尾矿排出口排出。The existing dry magnetic separator includes a casing and a rotating magnetic roller. The upper end of the casing is provided with a feeding port, the lower end of the casing is provided with a concentrate discharge port and a non-magnetic material tailings discharge port, and the rotating magnetic roller is installed in the casing. , the rotating magnetic roller includes a rotating sleeve, a sector-shaped magnet fixedly installed on the rotating shaft in the rotating sleeve, the sector-shaped magnet is fixedly installed just below the rotating shaft, the sector-shaped magnet is concentric with the rotating sleeve and is installed close to the rotating sleeve, Both the concentrate discharge port and the tailings discharge port are located below the fan-shaped thin-shell magnet, and the concentrate discharge port is located behind the tailings discharge port in the rotation direction of the rotating sleeve, so that the raw material enters the shell through the feed port, and is in the shell and the rotating magnet. The magnetic iron powder and the non-magnetic substance are separated by the action of the magnet and the rotation of the rotating sleeve between the rollers. The magnetic iron powder is discharged from the concentrate discharge port, and the non-magnetic substances such as dust are discharged from the tailings discharge port.
参见图1、图2，为现有典型磁选机的剖面结构示意图，图中，a为进料口，b为精矿排出口，c为尾矿排出口，d为旋转套筒，f为扇形磁体，图中箭头方向的旋转套筒d的旋转方向，通过图中A方向向原料口a添加原料。扇形磁体f靠近旋转套筒d，扇形磁体f对应的圆心角较大（一般为120°以上），即扇形磁体f对旋转套筒d的作用面较大，在磁选机工作时，经磁选的铁粉在旋转套筒d表面附着时间长，容易造成旋转套筒d表面磨损，驱动旋转套筒d旋转的能耗较大；在旋转套筒d的旋转过程中，附着在旋转套筒d表面的弱磁性铁粉容易因振动而脱落，使原料中的部分磁性铁粉通过尾矿排出口c排出而不能被选出，造成尾矿中磁性铁粉含量较高。Referring to Figure 1 and Figure 2, it is a schematic cross-sectional structure of an existing typical magnetic separator. In the figure, a is the feed port, b is the concentrate discharge port, c is the tailings discharge port, d is the rotating sleeve, and f is the The sector magnet, the rotation direction of the rotating sleeve d in the direction of the arrow in the figure, adds the raw material to the raw material port a through the direction A in the figure. The sector magnet f is close to the rotating sleeve d, and the corresponding central angle of the sector magnet f is larger (generally more than 120°), that is, the effect surface of the sector magnet f on the rotating sleeve d is larger. The selected iron powder adheres to the surface of the rotating sleeve d for a long time, which is easy to cause the surface of the rotating sleeve d to wear, and the energy consumption for driving the rotating sleeve d to rotate is relatively large; during the rotation of the rotating sleeve d, it adheres to the rotating sleeve d The weak magnetic iron powder on the surface of d is easy to fall off due to vibration, so that part of the magnetic iron powder in the raw material is discharged through the tailings discharge port c and cannot be selected, resulting in a high content of magnetic iron powder in the tailings.
实用新型内容Utility model content
针对现有技术存在的问题，本实用新型的目的在于提供一种干式磁选机，能够提高旋转套筒的使用寿命，减少旋转套筒的驱动能耗，提高磁性铁粉选出率和磁选效率。In view of the problems existing in the prior art, the purpose of the present invention is to provide a dry magnetic separator, which can improve the service life of the rotating sleeve, reduce the driving energy consumption of the rotating sleeve, and improve the selection rate of magnetic iron powder and the magnetic field. Choose efficiency.
为实现上述目的，本实用新型的技术方案如下：For achieving the above object, the technical scheme of the present invention is as follows:
一种干式磁选机，包括：外壳，安装到所述外壳内的旋转磁辊；A dry magnetic separator, comprising: a casing, a rotating magnetic roller installed in the casing;
所述旋转磁辊包括：旋转套筒，安装在所述旋转套筒内且不随所述旋转套筒旋转的扇形磁体；在所述旋转磁辊的径向截面上，所述扇形磁体的圆心角为10°~100°；The rotating magnetic roller includes: a rotating sleeve, a sector-shaped magnet installed in the rotating sleeve and not rotating with the rotating sleeve; on the radial section of the rotating magnetic roller, the central angle of the sector-shaped magnet is 10°~100°;
沿所述旋转套筒旋转方向所述外壳上依次设置进料口、精矿排出口和尾矿排出口。A feeding port, a concentrate discharge port and a tailings discharge port are sequentially arranged on the casing along the rotation direction of the rotating sleeve.
进一步，所述扇形磁体靠近所述旋转套筒筒壁。Further, the sector magnet is close to the wall of the rotating sleeve.
进一步，所述进料口设置在所述外壳上方，所述精矿排出口和所述尾矿排出口设置在所述外壳下方。Further, the feed port is provided above the casing, and the concentrate discharge port and the tailings discharge port are provided below the casing.
进一步，所述进料口和所述精矿排出口分别向所述扇形磁体两端延伸。Further, the feed port and the concentrate discharge port extend toward both ends of the sector magnet, respectively.
本实用新型的干式磁选机，减小扇形磁体的圆心角，从而减小扇形磁体的体积和磁性材料的用量，节约磁性材料成本。在磁选时，附着在旋转套筒表面的铁粉输送路程短，铁粉附着时间短，能够大大减小铁粉对旋转套筒表面磨损，增加旋转套筒的使用寿命，提高铁粉磁选效率；附着在旋转套筒表面的弱磁性铁粉也能够从精矿排出口排出，大大降低了尾矿中磁性铁粉的含量，提高磁性铁粉选出率。The dry magnetic separator of the utility model reduces the central angle of the sector-shaped magnet, thereby reducing the volume of the sector-shaped magnet and the amount of magnetic material used, thereby saving the cost of the magnetic material. During magnetic separation, the conveying distance of the iron powder attached to the surface of the rotating sleeve is short, and the adhesion time of the iron powder is short, which can greatly reduce the wear of the iron powder on the surface of the rotating sleeve, increase the service life of the rotating sleeve, and improve the magnetic separation of iron powder. Efficiency; the weak magnetic iron powder attached to the surface of the rotating sleeve can also be discharged from the concentrate discharge port, which greatly reduces the content of magnetic iron powder in the tailings and improves the selection rate of magnetic iron powder.
附图说明Description of drawings
图1为背景技术中的一种干式磁选机剖面结构示意图；1 is a schematic diagram of a cross-sectional structure of a dry magnetic separator in the background technology;
图2为背景技术中的另一种干式磁选机剖面结构示意图；Fig. 2 is another kind of dry magnetic separator cross-sectional structure schematic diagram in the background technology;
图3为本实用新型示例提供的一种干式磁选机剖面结构示意图；3 is a schematic cross-sectional structure diagram of a dry magnetic separator provided by an example of the utility model;
图中：In the picture:
1—外壳；1-1—进料口；1-2—精矿排出口；1-3—尾矿排出口；2—旋转套筒；3—扇形磁体。1- shell; 1-1- feed port; 1-2- concentrate discharge port; 1-3- tailings discharge port; 2- rotating sleeve; 3- sector magnet.
具体实施方式Detailed ways
为了使本领域的技术人员更好地理解本实用新型的方案，下面结合本实用新型示例中的附图对本实用新型的技术方案进行清楚、完整地描述，显然，所描述的示例仅仅是本实用新型的一部分示例，而不是全部的示例。基于本实用新型中的示例，本领域的普通技术人员在没有做出创造性劳动的前提下，所获得的所有其他实施方式都应当属于本实用新型保护的范围。In order to make those skilled in the art better understand the solution of the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the examples of the present invention. Obviously, the described examples are only the present invention. Some examples of new types, but not all examples. Based on the examples in the present invention, all other implementations obtained by those of ordinary skill in the art without creative work should fall within the protection scope of the present invention.
如图3所示的示例，提供了一种干式磁选机，包括：外壳1，安装到外壳1内的旋转磁辊；As an example shown in FIG. 3, a dry magnetic separator is provided, including: a casing 1, and a rotating magnetic roller installed in the casing 1;
旋转磁辊包括：旋转套筒2，安装在旋转套筒2内且不随旋转套筒旋转的扇形磁体3；在旋转磁辊的径向截面上，扇形磁体3的圆心角为10°~100°；The rotating magnetic roller includes: a
图中箭头方向为旋转套筒的旋转方向，沿旋转套筒2旋转方向外壳1上依次设置进料口1-1、精矿排出口1-2和尾矿排出口1-3。The direction of the arrow in the figure is the direction of rotation of the rotating sleeve. Along the rotating direction of the
与图1、图2中的现有干式磁选机相比，本示例的干式磁选机，减小扇形磁体3的圆心角，从而减小扇形磁体3的体积和磁性材料的用量，节约磁性材料成本。在磁选时，附着在旋转套筒2表面的铁粉输送路程短，铁粉附着时间短，能够大大减小铁粉对旋转套筒2表面磨损，增加旋转套筒2的使用寿命，提高铁粉磁选效率；附着在旋转套筒2表面的弱磁性铁粉也能够从精矿排出口1-2排出，大大降低了尾矿中磁性铁粉的含量，提高磁性铁粉选出率。Compared with the existing dry magnetic separators in Fig. 1 and Fig. 2, the dry magnetic separator of this example reduces the central angle of the
使用本示例中干式磁选机时，沿图3中A方向从进料口加入待磁选原料，旋转套筒2沿图中箭头方向旋转，磁选后，磁性铁粉从精矿排出口1-2排出，选出磁性铁粉后的尾矿从尾矿排出口1-3排出。When using the dry magnetic separator in this example, the raw material to be magnetically separated is added from the feed port in the direction A in Figure 3, and the
使用现有干式磁选机的磁选后，尾矿中磁性铁粉含量为1%左右，采用本示例的磁选机磁选后，尾矿中磁性铁粉含量下降至0.5%以下，大大提高了原料中磁性铁粉选出率。After using the magnetic separation of the existing dry magnetic separator, the content of magnetic iron powder in the tailings is about 1%. After the magnetic separation of the magnetic separator in this example, the content of magnetic iron powder in the tailings drops to below 0.5%, which is greatly reduced. The selection rate of magnetic iron powder in the raw material is improved.
在本示例中，扇形磁体3靠近旋转套筒2筒壁，以便较大程度地发挥扇形磁体3的磁选作用。In this example, the
参见图3，进料口1-1设置在外壳1上方，精矿排出口1-2和尾矿排出口1-3设置在外壳1下方。Referring to FIG. 3 , the feed inlet 1-1 is arranged above the casing 1 , and the concentrate discharge outlet 1-2 and the tailings discharge outlet 1-3 are arranged below the casing 1 .
在本示例中，进料口1-1和精矿排出口1-2分别向扇形磁体3两端延伸。参见图3，进料口1-1和精矿排出口1-2处均设置分别向扇形磁体3两端延伸的边沿，以便扇形磁体3充分发挥磁选作用，更好地利用扇形磁体3进行磁选。In this example, the feed port 1-1 and the concentrate discharge port 1-2 extend toward both ends of the
最后，可以理解的是，以上实施方式仅仅是为了说明本实用新型的原理而采用的示例性实施方式，然而本实用新型并不局限于此。对于本领域普通技术人员而言，在不脱离本实用新型的原理和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本实用新型的保护范围。Finally, it can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the principle and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.
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|---|---|---|---|---|
| CN119926661A (en) * | 2025-04-02 | 2025-05-06 | 吉林省八方新材料科技有限公司 | An electric sieve for purifying iron powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119926661A (en) * | 2025-04-02 | 2025-05-06 | 吉林省八方新材料科技有限公司 | An electric sieve for purifying iron powder |
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