CN206240618U - A kind of multistage gradient magnetic system wet type bevel-type weak magnetic separator - Google Patents
A kind of multistage gradient magnetic system wet type bevel-type weak magnetic separator Download PDFInfo
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Abstract
本实用新型涉及一种弱磁磁选设备，尤其涉及一种多级梯度磁系湿式锥式弱磁选机，其主要应用于强磁性矿物的分选，属于矿物磁选的技术领域。所述磁选机包括给料装置、分选装置、传动装置和支架；本实用新型通过锥形分选盘分散料浆，有利于颗粒的分散，且多级梯度排布的磁系更利于磁性颗粒的匹配捕获，利于减少夹杂，具有分选效率高、夹杂少等优点。
The utility model relates to a weak magnetic separation equipment, in particular to a multi-stage gradient magnetic system wet cone weak magnetic separation machine, which is mainly used in the separation of strong magnetic minerals and belongs to the technical field of mineral magnetic separation. The magnetic separator includes a feeding device, a sorting device, a transmission device and a bracket; the utility model disperses the slurry through a conical sorting disc, which is beneficial to the dispersion of the particles, and the magnetic system arranged in a multi-level gradient is more conducive to magnetic The matching capture of particles is beneficial to reduce inclusions, and has the advantages of high sorting efficiency and less inclusions.
Description
技术领域technical field
本实用新型涉及一种弱磁磁选设备，尤其涉及一种多级梯度磁系湿式锥式弱磁选机，其主要应用于强磁性矿物的分选，属于矿物磁选的技术领域。The utility model relates to a weak magnetic separation equipment, in particular to a multi-stage gradient magnetic system wet cone weak magnetic separation machine, which is mainly used in the separation of strong magnetic minerals and belongs to the technical field of mineral magnetic separation.
背景技术Background technique
强磁性矿物比磁化系数大，通常采用弱磁选进行分选。筒式弱磁选机是弱磁选的常用设备。其工作时，磁性较强的颗粒在磁系磁场力的作用下被吸附在滚筒表面，而弱磁和非磁性矿物则被甩掉流入尾矿槽排除。磁性颗粒随滚筒旋转被带出磁场区，用强力水流冲入精矿槽从而完成分选过程。Strong magnetic minerals have a large specific magnetic susceptibility, and are usually separated by weak magnetic separation. Drum type weak magnetic separator is a common equipment for weak magnetic separation. When it works, the particles with strong magnetic force are adsorbed on the surface of the drum under the action of the magnetic field force of the magnetic system, while the weakly magnetic and non-magnetic minerals are thrown off and flow into the tailings tank for removal. The magnetic particles are taken out of the magnetic field area with the rotation of the drum, and are washed into the concentrate tank by a strong water flow to complete the separation process.
上述磁选机分选时的工作面实际为旋转滚筒浸没在料浆中的部分面，滚筒大部分表面都没有得到利用；磁性颗粒并不能很好的分散于滚筒表面，而现有的筒式弱磁选机的磁系单一，内部分选空间的磁场分布固定，对于实际选矿生产过程中，矿石性质复杂多样，颗粒粒度也不均匀，现有的弱磁选机易出现夹杂问题；并且需要大量的水来冲下附着在旋转滚筒表面的颗粒，因而此类磁选机体积大、重量大、效率低、浪费水源，而且分选过程中易夹杂，影响精矿品位及回收率的提高。The working surface of the above-mentioned magnetic separator is actually part of the surface of the rotating drum immersed in the slurry, and most of the surface of the drum has not been utilized; the magnetic particles cannot be well dispersed on the surface of the drum, and the existing drum type The magnetic system of the weak magnetic separator is single, and the magnetic field distribution in the internal separation space is fixed. In the actual beneficiation production process, the ore properties are complex and diverse, and the particle size is not uniform. The existing weak magnetic separator is prone to inclusion problems; and needs A large amount of water is used to wash down the particles attached to the surface of the rotating drum, so this type of magnetic separator has large volume, heavy weight, low efficiency, waste of water, and is easy to be mixed during the separation process, which affects the improvement of concentrate grade and recovery rate.
发明内容Contents of the invention
本实用新型的目的是提供一种多级梯度磁系湿式锥式弱磁选机，以解决现有湿式筒式弱磁选机分选过程中夹杂严重等问题。The purpose of this utility model is to provide a multi-stage gradient magnetic system wet cone type weak magnetic separator to solve the problems of serious inclusions in the sorting process of the existing wet drum type weak magnetic separator.
本实用新型按以下技术方案实现：The utility model is realized according to the following technical solutions:
一种多级梯度磁系湿式锥式弱磁选机，包括给料装置1、分选装置、传动装置和支架7；A multi-stage gradient magnetic system wet cone type weak magnetic separator, including a feeding device 1, a sorting device, a transmission device and a support 7;
分选装置包括分选盘4、磁系5和接矿槽6；分选盘4为圆锥形，外表面呈细密的波浪棱纹面，分为磁性区域13和非磁性区域14，磁性区域13下方设有磁系5，磁系5通过磁系支架11固定，且与分选盘4的锥面平行，磁系支架11与分选盘4间通过导轮装置12连接，磁系5不随分选盘4转动；非磁性区域14下部不设磁系；分选盘4上方平行设有分选盘盖2，分选盘盖2内侧对应非磁性区域14的位置设有卸矿水管3；给料装置1穿过并固定在分选盘盖2顶端，与磁性区域13相对；分选盘盖2一端通过螺栓与接矿槽6固定连接，接矿槽6设置在分选盘4边缘的正下方，接矿槽6为环形槽，有四个以上腔体，在磁性区域13下方为尾矿槽，在非磁性区域14下方为精矿槽；The sorting device includes a sorting disc 4, a magnetic system 5 and an ore-connecting trough 6; the sorting disc 4 is conical, and the outer surface is a fine wavy ribbed surface, which is divided into a magnetic area 13 and a non-magnetic area 14, and a magnetic area 13 The magnetic system 5 is arranged below, the magnetic system 5 is fixed by the magnetic system bracket 11, and is parallel to the conical surface of the sorting disc 4, the magnetic system bracket 11 and the sorting disc 4 are connected by the guide wheel device 12, and the magnetic system 5 does not change The selection disc 4 rotates; the bottom of the non-magnetic area 14 is not provided with a magnetic system; the top of the selection disc 4 is provided with a sorting disc cover 2 in parallel, and the inside of the sorting disc cover 2 is provided with an ore unloading water pipe 3 at a position corresponding to the non-magnetic area 14; The material device 1 passes through and is fixed on the top of the sorting disc cover 2, opposite to the magnetic area 13; one end of the sorting disc cover 2 is fixedly connected with the ore-connecting tank 6 through bolts, and the ore-connecting tank 6 is arranged on the positive side of the edge of the sorting disc 4 Below, the ore-connecting tank 6 is an annular tank with more than four cavities, the tailing tank is below the magnetic area 13, and the concentrate tank is below the non-magnetic area 14;
传动装置包括皮带轮8和传动轴9；分选盘4与传动轴9顶端连接，皮带轮8设置在传动轴9底部；The transmission device includes a pulley 8 and a transmission shaft 9; the sorting disc 4 is connected to the top of the transmission shaft 9, and the pulley 8 is arranged at the bottom of the transmission shaft 9;
接矿槽6和磁系支架11通过支架7固定，传动轴9与支架7通过轴承10连接。The ore-connecting tank 6 and the magnetic system support 11 are fixed by the support 7, and the transmission shaft 9 is connected with the support 7 by the bearing 10.
分选盘4锥面与水平面的夹角为15°～55°。The included angle between the conical surface of the sorting disc 4 and the horizontal plane is 15° to 55°.
分选盘4有两个磁性区域13和两个非磁性区域14，磁性区域13和非磁性区域14交替且对称分布，磁性区域13的扇形弧度为85°～115°，非磁性区域14扇形弧度为65°~95°；每个磁性区域13对应一个给料装置1，每个非磁性区域14对应一条卸矿水管3。The sorting disk 4 has two magnetic regions 13 and two non-magnetic regions 14, the magnetic regions 13 and the non-magnetic regions 14 are alternately and symmetrically distributed, the fan-shaped arc of the magnetic region 13 is 85°-115°, and the fan-shaped arc of the non-magnetic region 14 is 65°~95°; each magnetic area 13 corresponds to a feeding device 1, and each non-magnetic area 14 corresponds to a mine discharge pipe 3.
磁系5为多极磁系，每个磁极均由永磁块组成；磁系5的磁极极性沿分选盘4圆周方向交替排布，沿分选盘4圆锥母线方向极性相同；磁系5的磁场强度沿分选盘4圆锥母线方向从给料端向排料端呈多级梯度递增，梯度级数为两个以上。The magnetic system 5 is a multi-pole magnetic system, and each magnetic pole is composed of a permanent magnet block; the magnetic poles of the magnetic system 5 are alternately arranged along the circumferential direction of the sorting disc 4, and the polarities are the same along the direction of the conical generatrix of the sorting disc 4; The magnetic field strength of the system 5 increases along the direction of the conical generatrix of the sorting disc 4 from the feed end to the discharge end in a multi-level gradient, and the number of gradient series is more than two.
分选盘盖2、卸矿水管3、分选盘4、接矿槽6、支架7、磁系支架11、导轮装置12均为不导磁材质，分选盘4外表面加一层耐磨不导磁材料。The sorting disc cover 2, the unloading water pipe 3, the sorting disc 4, the ore receiving tank 6, the bracket 7, the magnetic system bracket 11, and the guide wheel device 12 are all non-magnetic materials, and the outer surface of the sorting disc 4 is covered with a layer of resistant Grinding non-magnetic materials.
本实用新型的工作原理为：The working principle of the utility model is:
皮带轮8通过外接电机提供电能带动传动轴9转动，传动轴9带动设置在其顶端的分选盘4转动，由于磁系支架11与分选盘4间通过导轮装置12连接，因此磁系5不随分选盘4转动；The belt pulley 8 provides electric energy through an external motor to drive the transmission shaft 9 to rotate, and the transmission shaft 9 drives the sorting disc 4 arranged on its top to rotate. Since the magnetic system bracket 11 and the sorting disc 4 are connected through the guide wheel device 12, the magnetic system 5 Does not rotate with the sorting disc 4;
料浆通过给料装置1输送至分选盘4的磁性区域13顶部，在重力的作用下，料浆沿分选盘4分散并向下流动，磁性颗粒受磁系5的磁场力作用而吸附在分选盘4的表面，并随分选盘4一起旋转；在旋转过程中，由于磁系极性的交替排布，磁性颗粒群在分选盘4表面翻滚，从而清除一部分夹带的脉石，同时非磁性颗粒继续向下流动，直至掉出分选盘4进入尾矿槽；当吸附在分选盘4表面的磁性颗粒群旋转至非磁性区域14时，由于没有磁场力的作用，且在卸矿水管3冲洗水的作用下，磁性颗粒群掉出分选盘4进入精矿槽。The slurry is transported to the top of the magnetic area 13 of the sorting disc 4 through the feeding device 1. Under the action of gravity, the slurry is dispersed along the sorting disc 4 and flows downward, and the magnetic particles are adsorbed by the magnetic field force of the magnetic system 5 On the surface of the sorting disc 4, and rotate together with the sorting disc 4; during the rotation process, due to the alternate arrangement of the polarity of the magnetic system, the magnetic particle group rolls on the surface of the sorting disc 4, thereby removing part of the entrained gangue, At the same time, the non-magnetic particles continue to flow downward until they fall out of the sorting disc 4 and enter the tailings tank; Under the action of the flushing water of the unloading water pipe 3, the magnetic particle group falls out of the sorting disc 4 and enters the concentrate tank.
磁系5沿着分选盘4圆锥母线方向呈多组排布，磁场强度多级梯度递增，使得磁性颗粒在沿着分选盘4母线流动过程中，受到的磁场力不同，比磁化系数大的颗粒在磁场强度低的区域即被捕获，比磁化系数小的颗粒继续随矿浆向下运动直至在磁场强度高的区域被捕获，实现了磁性颗粒的多级匹配捕获，减少了因磁场强度过大导致磁性颗粒团聚所造成的夹杂。The magnetic system 5 is arranged in multiple groups along the direction of the conical generatrix of the sorting disc 4, and the magnetic field strength increases gradually in multiple stages, so that the magnetic particles are subjected to different magnetic field forces during the flow along the 4 generatrix of the sorting disc, which is larger than the magnetic susceptibility coefficient The particles are captured in the area of low magnetic field intensity, and the particles with smaller magnetic susceptibility continue to move down with the slurry until they are captured in the area of high magnetic field intensity. Large inclusions caused by agglomeration of magnetic particles.
本实用新型具有以下有益效果：The utility model has the following beneficial effects:
1、料浆沿圆锥形的分选盘顶部给入，颗粒通过的行程长，有利于磁性颗粒的捕获，从而提高磁性产品的回收率；1. The slurry is fed along the top of the conical sorting disc, and the particles pass through a long journey, which is conducive to the capture of magnetic particles, thereby improving the recovery rate of magnetic products;
2、分选盘面积大，利于矿浆的分散，有助于减少机械夹杂；2. The area of the sorting disc is large, which is conducive to the dispersion of the pulp and helps to reduce mechanical inclusions;
3、分选区域的背景磁场强度沿矿浆流动方向具有梯度差，使不同粒度、比磁化系数的磁系颗粒在分选空间内受到的磁场力和机械力更合适，有利于磁系颗粒的匹配系捕获，减轻因磁场强度过大导致的夹杂。3. The background magnetic field strength in the separation area has a gradient difference along the flow direction of the pulp, which makes the magnetic force and mechanical force of the magnetic system particles with different particle sizes and specific magnetic susceptibility coefficients in the separation space more suitable, which is conducive to the matching of magnetic system particles The system captures and reduces inclusions caused by excessive magnetic field strength.
附图说明Description of drawings
图1为本实用新型的纵轴线剖面图；Fig. 1 is the longitudinal axis sectional view of the utility model;
图2为分选盘4的俯视图。FIG. 2 is a top view of the sorting tray 4 .
图中：1-给料装置，2-分选盘盖，3-卸矿水管，4-分选盘，5-磁系，6-接矿槽，7-支架，8-皮带轮，9-传动轴，10-轴承，11-磁系支架，12-导轮装置，13-磁性区域，14-非磁性区域。In the figure: 1-feeding device, 2-separation disc cover, 3-mine discharge pipe, 4-separation disc, 5-magnetic system, 6-connection tank, 7-bracket, 8-belt pulley, 9-transmission Shaft, 10-bearing, 11-magnetic bracket, 12-guide wheel device, 13-magnetic area, 14-non-magnetic area.
具体实施方式detailed description
下面结合附图和实施例，对本实用新型作进一步说明，但本实用新型的内容并不限于所述范围。Below in conjunction with accompanying drawing and embodiment, the utility model will be further described, but the content of the utility model is not limited to said range.
实施例1Example 1
如图1-2所示，一种多级梯度磁系湿式锥式弱磁选机，包括给料装置1、分选装置、传动装置和支架7；As shown in Figure 1-2, a multi-stage gradient magnetic system wet cone weak magnetic separator includes a feeding device 1, a sorting device, a transmission device and a bracket 7;
分选装置包括分选盘4、磁系5和接矿槽6；分选盘4为圆锥形，锥面与水平面的夹角为25°，外表面呈细密的波浪棱纹面，包括两个磁性区域13和两个非磁性区域14，磁性区域13和非磁性区域14交替且对称排布；磁性区域13扇形弧度为100°，非磁性区域扇形弧度为80°；磁性区域13下方设有磁系5，磁系5通过磁系支架11固定，且与分选盘4的锥面平行，磁系支架11与分选盘4间通过导轮装置12连接，磁系5不随分选盘4转动；非磁性区域14下部不设磁系；分选盘4上方平行设有分选盘盖2，分选盘盖2内侧对应非磁性区域14的位置设有卸矿水管3，每个非磁性区域14对应一条卸矿水管3；给料装置1穿过并固定在分选盘盖2顶端，与磁性区域13相对，每个磁性区域13对应一个给料装置1；分选盘盖2一端通过螺栓与接矿槽6固定连接，接矿槽6设置在分选盘4边缘的正下方，接矿槽6为环形槽，有四个腔体，在磁性区域13下方为尾矿槽，在非磁性区域14下方为精矿槽；The sorting device includes a sorting disc 4, a magnetic system 5 and an ore-connecting tank 6; the sorting disc 4 is conical, the angle between the conical surface and the horizontal plane is 25°, and the outer surface is a fine and dense wavy ribbed surface, including two The magnetic region 13 and two non-magnetic regions 14, the magnetic regions 13 and the non-magnetic regions 14 are arranged alternately and symmetrically; the fan-shaped arc of the magnetic region 13 is 100°, and the fan-shaped arc of the non-magnetic region is 80°; 5, the magnetic system 5 is fixed by the magnetic system bracket 11, and is parallel to the conical surface of the sorting disc 4, the magnetic system bracket 11 and the sorting disc 4 are connected by the guide wheel device 12, the magnetic system 5 does not rotate with the sorting disc 4 The bottom of the non-magnetic area 14 is not provided with a magnetic system; the top of the sorting disc 4 is provided with a sorting disc cover 2 in parallel, and the inside of the sorting disc cover 2 is provided with an ore discharge pipe 3 at a position corresponding to the non-magnetic area 14, and each non-magnetic area 14 corresponds to a mine discharge pipe 3; the feeding device 1 passes through and is fixed on the top of the separation disc cover 2, opposite to the magnetic area 13, and each magnetic area 13 corresponds to a feeding device 1; one end of the separation disc cover 2 is passed through a bolt It is fixedly connected with the ore receiving tank 6, and the ore receiving tank 6 is arranged directly below the edge of the sorting disc 4. The ore receiving tank 6 is an annular tank with four cavities, and the tailings tank is below the magnetic area 13, and the non-magnetic Below area 14 is the concentrate slot;
传动装置包括皮带轮8和传动轴9；分选盘4与传动轴9顶端连接，皮带轮8设置在传动轴9底部；The transmission device includes a pulley 8 and a transmission shaft 9; the sorting disc 4 is connected to the top of the transmission shaft 9, and the pulley 8 is arranged at the bottom of the transmission shaft 9;
接矿槽6和磁系支架11通过支架7固定，传动轴9与支架7通过轴承10连接。The ore-connecting tank 6 and the magnetic system support 11 are fixed by the support 7, and the transmission shaft 9 is connected with the support 7 by the bearing 10.
磁系5为多极磁系，每个磁极均由永磁块组成；磁系5的磁极沿分选盘4圆锥母线方向极性相同，磁场强度从给料端向排料端呈四级梯度递增，每一级梯度有六块磁块，磁极极性沿分选盘4圆周方向交替排布。The magnetic system 5 is a multi-pole magnetic system, and each magnetic pole is composed of a permanent magnet block; the magnetic poles of the magnetic system 5 have the same polarity along the direction of the conical generatrix of the sorting disc 4, and the magnetic field strength presents a four-level gradient from the feeding end to the discharging end Incrementally, each level of gradient has six magnetic blocks, and the polarity of the magnetic poles is alternately arranged along the circumferential direction of the sorting disc 4 .
分选盘盖2、卸矿水管3、分选盘4、接矿槽6、支架7、磁系支架11、导轮装置12均为铝合金材质。The sorting disc cover 2, the unloading ore water pipe 3, the sorting disc 4, the ore receiving tank 6, the support 7, the magnetic system support 11, and the guide wheel device 12 are all made of aluminum alloy.
实施例2Example 2
一种多级梯度磁系湿式锥式弱磁选机，基本结构与实施例1大体相同，不同之处在于：分选盘4锥面与水平面的夹角为30°；磁性区域13和非磁性区域扇形弧度均为90°；磁系5的磁场强度沿分选盘4圆锥母线方向从给料端向排料端呈六级梯度递增，每一级梯度有六块磁块，磁极极性沿分选盘4圆周方向交替排布；分选盘4外表面覆一层1.5mm厚的复合耐磨材料；接矿槽6设有六个腔体。A multi-stage gradient magnetic system wet-type cone weak magnetic separator, the basic structure is basically the same as that of Embodiment 1, the difference is that: the angle between the conical surface of the sorting disc 4 and the horizontal plane is 30°; the magnetic region 13 and the non-magnetic The arc of the area fan is 90°; the magnetic field strength of the magnetic system 5 increases along the direction of the conical generatrix of the sorting disc 4 from the feeding end to the discharging end in a six-level gradient. The sorting discs 4 are alternately arranged in the circumferential direction; the outer surface of the sorting discs 4 is covered with a layer of 1.5mm thick composite wear-resistant material; the ore-connecting tank 6 is provided with six cavities.
实施例3Example 3
一种多级梯度磁系湿式锥式弱磁选机，基本结构与实施例1大体相同，不同之处在于：分选盘4锥面与水平面的夹角为45°；磁性区域13的扇形弧度为110°，非磁性区域扇形弧度为70°；磁系5的磁场强度沿分选盘4圆锥母线方向从给料端向排料端呈五级梯度递增，每一级梯度有八块磁块，磁极极性沿分选盘4圆周方向交替排布；分选盘4外表面覆一层2mm厚的耐磨橡胶。A multi-stage gradient magnetic system wet-type cone weak magnetic separator, the basic structure is basically the same as that of Embodiment 1, the difference is that: the angle between the conical surface of the sorting disc 4 and the horizontal plane is 45°; the fan-shaped arc of the magnetic region 13 is 110°, and the fan-shaped arc of the non-magnetic area is 70°; the magnetic field strength of the magnetic system 5 increases along the direction of the conical generatrix of the sorting disc 4 from the feeding end to the discharging end, and there are eight magnetic blocks in each gradient , the polarity of the magnetic poles is alternately arranged along the circumferential direction of the sorting disc 4; the outer surface of the sorting disc 4 is covered with a layer of 2mm thick wear-resistant rubber.
Claims (9)
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| CN201621158567.2U CN206240618U (en) | 2016-10-25 | 2016-10-25 | A kind of multistage gradient magnetic system wet type bevel-type weak magnetic separator |
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| CN201621158567.2U CN206240618U (en) | 2016-10-25 | 2016-10-25 | A kind of multistage gradient magnetic system wet type bevel-type weak magnetic separator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558455A (en) * | 2020-06-18 | 2020-08-21 | 于海蒂 | An energy-saving wet magnetic separator and its control method |
| CN113769888A (en) * | 2021-08-27 | 2021-12-10 | 宁化日昌升新材料有限公司 | A magnetic separation system for machine-made sand removal of mica |
| CN116159659A (en) * | 2022-12-16 | 2023-05-26 | 中冶北方（大连）工程技术有限公司 | Deep sorting device |
| CN117427772A (en) * | 2023-10-11 | 2024-01-23 | 昆明理工大学 | A centrifugal dry magnetic separation method and its application |
| CN117861846A (en) * | 2024-01-21 | 2024-04-12 | 昆明理工大学 | A centrifugal dry weak magnetic field magnetic separator |
-
2016
- 2016-10-25 CN CN201621158567.2U patent/CN206240618U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558455A (en) * | 2020-06-18 | 2020-08-21 | 于海蒂 | An energy-saving wet magnetic separator and its control method |
| CN111558455B (en) * | 2020-06-18 | 2022-04-12 | 南阳师范学院 | An energy-saving wet magnetic separator and its control method |
| CN113769888A (en) * | 2021-08-27 | 2021-12-10 | 宁化日昌升新材料有限公司 | A magnetic separation system for machine-made sand removal of mica |
| CN116159659A (en) * | 2022-12-16 | 2023-05-26 | 中冶北方（大连）工程技术有限公司 | Deep sorting device |
| CN117427772A (en) * | 2023-10-11 | 2024-01-23 | 昆明理工大学 | A centrifugal dry magnetic separation method and its application |
| CN117861846A (en) * | 2024-01-21 | 2024-04-12 | 昆明理工大学 | A centrifugal dry weak magnetic field magnetic separator |
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