• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    slag reduction magnetic separator and concentrate extraction a magnetic separator to improve refined ore grade and reduce slag comprising co-existing tank body (6) and permanently magnetic barrel (3) rotatably provided in the tank body, the direction of rotation of the permanently magnetic barrel being opposite to the inlet direction of the slurry of ore; a stationary magnetic system (8) is provided on the permanently magnetic barrel; the inlet side of the tank body is connected to a tubular ore feed box (16); the included angle of the magnetic system is in the range of 200°-280°; the magnetic system is of a multipole construction; the region of the magnetic system closest to the inlet side of the tank body is a refining region (7) of the magnetic system which is located above the level of the ore slurry in the tank body; at an upstream position in the tank body that corresponds to the refining region of the magnetic system, a plurality of rinse water pipes (15) are provided outside the permanently magnetic barrel and located above the level of the ore slurry in the body. of tank; several spray nozzles (151) facing the permanently magnetic barrel are provided at intervals in the rinse water lines; and a number of thin, magnetically conductive strip-shaped sheets (23) are provided at intervals on an inner wall of the permanently magnetic barrel.
    公开号:BR112016008350B1
    申请号:R112016008350-4
    申请日:2015-01-13
    公开日:2021-06-29
    发明作者:Shun Wang；Zhaolian Wang；Fengliang Liu；Yuyong LI；Liangman ZHANG；Yi Zhao
    申请人:Shandong Huate Magnet Technology Co., Ltd；
    IPC主号:
    专利说明:

    [001] This application claims priority benefit over Patent Application No. CN 201410036271.2 entitled "CONCENTRATE EXTRACTING AND SLAG REDUCING MAGNETIC SEPARATOR", filed with the Intellectual Property Office of the Republic of China on January 25, 2014, whose full disclosure is incorporated herein by reference. FIELD OF TECHNIQUE
    [002] The present application refers to the technical field of ore preparation devices and, particularly, to a magnetic separator for slag reduction and concentrate extraction. BACKGROUND
    [003] With the exploration and utilization of ore resources, not only a large amount of ore can only be used after the ore preparation is carried out, but also more and more refractory ore in the separated ore is present, yet the reduction of ores has demanded stricter requirements for the quality of a concentrate. Therefore, how to use a method in the simplest possible way to improve a grade of concentrate in the ore preparation process is an important issue for ore preparation professionals to address.
    [004] A magnetic separator for mineral concentration is a magnetic separation device used to improve the grade and a concentration of the concentrate, which has been developed with the development of ore preparation technology in recent years. The operating principle of the same is that ore separation is carried out by virtue of the action on ore grains applied by a magnetic force and a mechanical force. Separable ore species include various types of magnetite, hematite, limonite, manganese ore, etc. Currently, the separation devices for mineral concentration, commonly adopted by several preparation plants, are mainly some devices of the magnetogravity type such as a magnetic lime remover or an electromagnetic elutriation magnetic separator, however, this type of device has the disadvantages of , firstly, a large volume is of a complex structure and inconvenient assembly, secondly, a large consumption of water, thirdly, a complicated control system and an unstable ore preparation index, fourthly, a requirement to feed ore with a low concentration and a low processing capacity per machine hour. Due to the disadvantages of a conventional device, the production efficiency and economic benefit of the preparation plant are severely restricted. SUMMARY
    [005] A technical problem to be addressed by the present application is to provide a slag reduction and concentrate extraction magnetic separator to replace a conventional concentration device, and the slag reduction and concentrate extraction magnetic separator according to the present application can significantly improve a product grade of ore, and the concentrate separated by having a high concentration.
    [006] To address the problem of technique, the technical solutions provided by the present application are: a magnetic slag reduction and concentrate extraction separator includes a tank fixedly disposed on a frame, a permanent magnetic drum powered by a power unit and provided rotationally in the tank, a magnetic system fixed with respect to the tank is provided on the permanent magnetic drum, an ore inlet side of the tank is connected to an ore feed box; a magnetic system coverage angle is in the range of 200 degrees to 280 degrees, the magnetic system is of a multimagnetic pole structure, an area of the magnetic system near the ore inlet side of the tank is an area of system concentration magnetic system, and the magnetic system concentration area is located above a level of ore slurry in the tank, multiple rinse water pipes are provided in an upstream position, which corresponds to the magnetic system concentration area, in the tank, multiple rinsing water lines are arranged on the outside of the permanent magnetic drum and are located above the ore slurry level in the tank, multiple sprinkler heads facing the permanent magnetic drum are provided with gaps in each of the water lines of rinse water, and spray heads in adjacent rinse water lines are staggered, and multiple strip-type magnetic sheets are provided with i. n gap in an inner wall of the permanent magnetic drum, and each of the magnetic sheets has a direction of extension consistent with an axial direction of the permanent magnetic drum.
    [007] Additionally, multiple rinse water pipes are concentrically arranged with respect to the permanent magnetic drum.
    [008] Additionally, the ore feed box is a pipe-type ore feed box, wherein the pipe-type ore feed box includes a pipe body having two closed ends disposed on the ore inlet side of the tank, at least one ore feed port is provided at a top portion of the pipe body, an ore pull groove is provided at a bottom of the pipe body, an extension direction of the ore pull groove is Consistent with the axial direction of the permanent magnetic drum, a width of one portion, which corresponds to the ore feed port, of the ore pull groove is slightly less than or equal to widths of other portions of the ore pull groove.
    [009] Additionally, two layers of discharging scrap plates are provided in an upper position and a lower position of an ore discharge side of the slag reduction and concentrate extraction magnetic separator.
    [010] Due to the above technical solutions, after the slag reduction magnetic separator and concentrate extraction according to the present application adopt the large coverage angle magnetic system, a concentration area of the slag reduction magnetic separator and concentrate extraction and an ore conduction area are elongated, yet the multimagnetic pole structure employed by the magnetic system allows the magnetic ore tumbling times to be increased, thus helping not only to improve a grade of concentrate, but also allowing mineral and water to be better separated in a long ore conduction process, thereby better realizing mineral concentration. Since multiple rinse water pipes are centripetal disposed relative to the permanent magnetic drum, the mineral is allowed to be rinsed and concentrated in a long magnetic system concentration area after separating the mineral from the ore slurry level, thereby removing impurities and improving the concentrate grade, therefore the selection effect is significantly improved compared to a traditional concentrator. And since all the rinse water lines are located above the ore slurry level, there is no possibility that the rinse water lines are blocked by mineral compared to a traditional rinse water line. Sprinkler heads in adjacent rinse water lines are staggered, allowing for more thorough rinsing while leaving no blind spots. Since multiple strip-type magnetic sheets are provided on the inner wall of the permanent magnetic drum, in the rotation process of the permanent magnetic drum, a magnetic shield is constantly formed between the magnetic sheets and the magnetic poles, thereby generating a field distorted magnetic on a permanent magnetic drum surface. The mineral constantly exhibits states of movement of accumulation, dispersion and then accumulation in the separation process, additionally with the rinse water sprayed through the multiple rinse water pipes, thus the impurities in the minerals can be completely separated, which further improves the degree of concentrate.
    [011] The pipe-type ore feed box and ore pull groove consistent with an axial direction of the permanent magnetic drum provided at the bottom of the pipe body can ensure that the ore slurry entering the reduction magnetic separator slag and concentrate extraction to be separated is evenly distributed in an axial direction of the permanent magnetic drum. In the case where a width of one portion, which corresponds to the ore feed port, of the ore pull groove is slightly smaller than the widths of other portions of the ore pull groove, the ore slurry flow velocities in different sections are easy to adjust, and the ore pull groove allows the ore pull flow velocities to be consistent in the longitudinal direction of the entire ore pull groove, which facilitates uniformity of ore preparation, improving thereby the final concentrate grade.
    [012] In the case where two layers of discharging scrap plates are provided in an upper position and a lower position of an ore discharge side of the slag reduction and concentrate extraction magnetic separator, a complete unloading is ensured, the rejects are reduced and a concentrate concentration is improved.
    [013] It can be concluded from the above that the slag reduction and concentrate extraction magnetic separator according to the present application can significantly improve the grade of ore products, thus, the separated concentrate has a high concentration and the slag reduction and concentrate extraction magnetic separator has a compact structure, a small volume, a large processing capacity per machine hour and a high production efficiency, thus improving the economic benefit of the preparation plant. BRIEF DESCRIPTION OF THE DRAWINGS
    [014] In order to illustrate the technical solutions in the modalities of the present application or in the conventional technique more clearly, the attached drawings required by the description of the modalities or the conventional technique will be illustrated briefly below. Apparently, the accompanying drawings described below are just some of the embodiments of the present application and, for those elements skilled in the art, other accompanying drawings will be obtained in accordance with the accompanying drawings without any further work.
    [015] Figure 1 is a schematic view showing the structure of a slag reduction and concentrate extraction magnetic separator according to the present application;
    [016] Figure 2 is a schematic sectional view taken along direction A-A in Figure 1;
    [017] Figure 3 is a schematic view showing the structure of a magnetic separator tank for slag reduction and concentrate extraction according to the present application;
    [018] Figure 4 is a schematic view showing the structure of an ore pull groove of a pipe-type ore feed box of the slag reduction and concentrate extraction magnetic separator according to the present application;
    [019] Figure 5 is a schematic view showing a structure of the ore pull groove of the pipe-type ore feed box in Figure 4 (a bottom view of Figure 4);
    [020] Figure 6 is a schematic view showing another structure of the ore pull groove of the pipe-type ore feed box in Figure 4;
    [021] Figure 7 is a schematic view showing the structure of a permanent magnetic drum of the slag reduction and concentrate extraction magnetic separator according to the present application;
    [022] Figure 8 is an enlarged schematic view showing where the magnetic sheets are internally provided in the permanent magnetic drum; and
    [023] Figure 9 is an enlarged schematic view showing a portion A, a portion B or a portion C in Figure 8.
    [024] Reference numbers in Figures 1 to 9: 1 magnetic system adjustment device, 2 frame, 3 permanent magnetic drum, 4 power unit, 5 cleaning device, 6 tank, 7 magnetic system concentrating area, 8 magnetic system, 9 scrap outlet, 10 primary discharge scrap plate, 11 secondary discharge scrap plate, 12 concentrate collection box, 13 ore feed port, 14 overflow deflector, 15 rinse water pipe, 151 sprinkler head, 16 pipe type ore feed box, 17a ore pull groove, 17b ore pull groove, 18 support base, 19 drum body, 20 main shaft, 21 slewing bearing, 22 gear transmission, 23 magnetic sheet. DETAILED DESCRIPTION
    [025] To more clearly illustrate the objectives, technical solutions and advantages of the present application, the present application is further described in detail together with the drawings and modalities hereinafter. It should be understood that the modalities described are for interpretation of the present application only, rather than limiting the present application.
    [026] As shown in Figures 1 and 2, a slag reduction and concentrate extraction magnetic separator according to the present application includes a co-existing flow tank 6 fixedly disposed in a frame 2. A concentrate collection box 12 is provided on an ore pull side of the coexisting flow tank 6. A reject outlet 9 is provided on a bottom of the coexisting flow tank 6. A permanent magnetic drum 3 powered by a power unit 4 is provided rotationally on the coexisting flux tank 6. A lower half of the permanent magnetic drum 3 is located in the coexisting flux tank 6 and the power unit 4 for rotating the permanent magnetic drum 3 is a conventional technology in the art. As shown in Figure 7, a main shaft 20 in the permanent magnetic drum 3 is supported on a support base 18 and the power unit 4 includes an electric motor and a gearbox. A gear is mounted on an output end of the gearbox, which is engaged with a drive gear 22 mounted on an end portion of the main shaft 20, and the permanent magnetic drum 3 is rotated by the power unit 4 through a rotating bearing 21 in a direction indicated by an arrow in Figure 2, and the rotation direction of the permanent magnetic drum 3 is opposite to an ore slurry input direction from the ore slurry. A magnetic system 8 fixed with respect to the co-existing flux tank 6 is provided on the permanent magnetic drum 3, a magnetic system adjusting device 1 for adjusting the magnetic system 8 is provided on an outer side of the slag reduction and extraction magnetic separator of concentrate, and the magnetic system adjusting device 1 is a conventional technology in the prior art, in which the structure and principle thereof are therefore not described in detail. An ore inlet side of the co-existing flow tank 6 is connected to an ore feed box.
    [027] As shown in Figure 2, the magnetic system 8 is of a multimagnetic pole structure. The number of magnetic poles is preferably in the range of 16 to 65, and an angle of coverage of the magnetic system 8 is in the range of 200 degrees to 280 degrees. An area of the magnetic system 8, where the magnetic system 8 is close to the ore inlet side of the co-existing flow tank 6, is defined as a magnetic system concentration area 7, and the magnetic system concentration area 7 is located above a level of ore slurry in co-existing flow tank 6 (indicated by a horizontal dotted line on a bottom of co-existing flow tank). The magnetic system with a large coverage angle allows a concentration area of the slag reduction and concentrate extraction magnetic separator and an ore conduction area to be elongated. Additionally, the multi-magnetic pole structure employed by the magnetic system 8 allows the ore's magnetic tumbling times to be increased, which in this way not only helps to improve a grade of concentrate, but also allows the mineral and water to be better separated in a long ore conduction process, thereby better realizing mineral concentration.
    [028] As shown in Figure 3, a portion, which corresponds to the magnetic system concentration area 7, in an upstream position in the co-existing flow tank 6 is provided with multiple rinse water pipes 15. The multiple water pipes rinse tubes 15 are arranged on an outer side of the permanent magnetic drum 3 and located above the level of ore slurry in the co-existing flow tank 6. Multiple spray heads 151 facing the permanent magnetic drum 3 are arranged at intervals in each of the rinse water lines 15, and spray heads 151 in adjacent rinse water lines 15 are staggered. The multiple rinse water pipes 15 are preferably concentrically arranged with respect to the permanent magnetic drum 3. In the magnetic system concentration area 7, multiple rinse water pipes 15 centripetal arranged with respect to the permanent magnetic drum 3 allow the ore slurry level mineral is rinsed and concentrated in a long magnetic system concentration area, which removes impurities and improves the concentrate grade. Therefore, the selection effect is significantly improved compared to a traditional concentrator. Additionally, since all the rinse water pipes 15 are located above the ore slurry level, there is no possibility that the rinse water pipes 15 are blocked by mineral when compared to a traditional rinse water pipe . Spray heads 151 in adjacent rinse water lines 15 are staggered, which allows rinsing to be more thorough, leaving no dead spots.
    [029] As shown in Figures 8 and 9, multiple strip-type magnetic sheets 23 are disposed at intervals on an inner wall of a drum body 19 of the permanent magnetic drum 3. The magnetic sheets 23 can employ magnetic sheets made of stainless steel. , and the number of magnetic sheets 23 can be increased or decreased according to practical conditions. In the rotation process of the permanent magnetic drum 3, the magnetic shield is constantly formed between the magnetic sheets 23 and the magnetic poles, thereby generating a distorted magnetic field on a surface of the permanent magnetic drum 3. The mineral constantly exhibits states of movement of accumulation, dispersion and then accumulation in the separation process, additionally with the rinse water sprayed through the multiple rinse water pipes 15, which allows the impurities in the minerals to be completely separated, further improving the concentrate grade .
    [030] Multiple additional enhancements made to the above modality are described later in this document.
    [031] The ore feed box is a pipe-type feed box 16, which includes a pipe body with two closed ends disposed on the ore inlet side of the co-existing flow tank 6. At least one ore feed port. 13 ore is provided in a top portion of the pipe body, and an ore pull groove is provided in a bottom of the pipe body. An extension direction of the ore pull groove is coincident with a geometric axis direction of the permanent magnetic drum 3.
    [032] As shown in Figure 4, two ore feed ports 13 are provided at the top portion of the pipe body, and the number of ore feed ports can be increased or decreased according to practical conditions. As shown in Figure 5, ore pull groove 17a has a consistent width in a longitudinal direction of the entire ore pull groove. As shown in Figure 6, the ore pull groove can also preferably be designed in such a way that: a one portion width, corresponding to the ore feed port 13, of the ore pull groove 17b is slightly smaller than the widths of other portions of the ore pull groove. The widths of the 17b ore pull groove are not the same in the longitudinal direction of the entire ore pull groove. Such a design has the advantages that: ore slurry is added to the pipe body through the ore feed port 13, and an ore slurry flow velocity at the portion of the ore pull groove that corresponds to the feed port 13 ore is slightly greater than the ore slurry flow velocities in the other portions of the ore pull groove. The structure of the ore pull groove 17b can allow the ore pull groove 17b to have consistent ore pull flow velocities in the longitudinal direction of the entire ore pull groove 17b, which facilitates uniformity in the preparation of ore, improving the final concentrate grade.
    [033] As shown in Figure 3, an overflow deflector 14 is provided vertically in a position, corresponding to the pipe-type ore feed box 16, in a bottom portion in the co-existing flow tank 6. The overflow deflector 14 is located in a position downstream of the ore pull groove and extends in a direction consistent with the direction of extension of the ore pull groove. The ore slurry is blocked by the overflow deflector 14 after flowing out through the ore pull groove at the bottom of the pipe body. The combined application of such ore feed mode can ensure that the ore slurry entering the slag reduction and concentrate extraction magnetic separator to be separated is evenly distributed in an axial direction of the permanent magnetic drum 3.
    [034] As shown in Figure 2, a cleaning device 5 is provided behind the overflow deflector 14 in the co-existing flow tank 6. The cleaning device 5 employs a cleaning pipe for the mineral, which adjusts the concentration of the slurry. ore before the ore slurry is separated, and expands the scope of concentration of mineral that can be fed.
    [035] As shown in Figure 2, two layers of discharging scrap plates are provided in an upper position and a lower position of an ore discharge side of the slag reduction and concentrate extraction magnetic separator, ie, a a primary discharge scrap plate 10 in an upper portion and a secondary discharge scrap plate 11 in a lower portion. The primary unload scrap plate 10 is fixedly mounted to the concentrate collection box 12, and the secondary unload scrap plate 11 is mounted to the frame. The two-layer arrangement of discharging scrap boards can ensure complete discharge, reduce scrap and improve concentrate concentration.
    [036] It can be concluded from the above description that the slag reduction and concentrate extraction magnetic separator according to the present application can significantly improve the grade of ore products, thus, the separated concentrate has a high concentration. Additionally, the slag reduction and concentrate extraction magnetic separator has a compact structure, a small volume, a large processing capacity per machine hour and a high production efficiency, which can enhance the economic benefit of the preparation plant. The slag reduction and concentrate extraction magnetic separator according to the present application addresses the problems of the technique of conventional magnetogravity type concentrate device having a complicated structure, a large volume, a low degree of concentrate, a control system complex and a low product efficiency.
    [037] The embodiments described above in this document are only preferred embodiments of the present application and the part not described in detail is general knowledge to those skilled in the art. The scope of the present application is defined by the claims, equivalent substitutions and improvements made based on the technical teaching of the present application are also intended to be included within the scope of the present application.
    权利要求:
    Claims (3)
    [0001]
    1. MAGNETIC SEPARATOR FOR SLAG REDUCTION AND CONCENTRATE EXTRACTION, comprising a tank (6) fixedly disposed in a frame (2), in which a permanent magnetic drum fed (3) by a power unit (4) is provided with rotational mode in the tank (6), a magnetic system (8) fixed in relation to the tank (6) is provided on the permanent magnetic drum (3), an ore inlet side of the tank (6) is connected to a feed box of ore, in which: a coverage angle of the magnetic system (8) is in the range of 200 degrees to 280 degrees, the magnetic system (8) is of a multimagnetic pole structure, an area of the magnetic system (8) nearby beside the ore inlet of the tank (6) is a magnetic system concentrating area (7), and the magnetic system concentrating area (7) is located above a level of ore slurry in the tank (6); a plurality of rinse water pipes (15) is provided in an upstream position, which corresponds to the magnetic system (7) concentration area, in the tank (6), the plurality of rinse water pipes (15) is disposed on an outer side of the permanent magnetic drum (3) and located above the level of ore slurry in the tank (6), a plurality of sprinkler heads (151) facing the permanent magnetic drum (3) are provided with gaps in each of the rinse water lines (15), and the sprinkler heads (151) in adjacent rinse water lines (15) are staggered; and a plurality of strip-like magnetic sheets (23) are provided with gaps in an inner wall of the permanent magnetic drum (3), and an extension direction of each of the magnetic sheets is consistent with an axial direction of the permanent magnetic drum ( 3), characterized in that the ore feed box is a pipe-type ore feed box (16), wherein the pipe-type ore feed box (16) comprises a pipe body having two closed ends disposed on the ore inlet side of the tank (6), at least one ore feed port (13) is provided at a top portion of the pipe body, an ore pull groove (17a) is provided at a bottom of the body. of piping, an extension direction of the ore pull groove (17a) is consistent with the axial direction of the permanent magnetic drum (3); a width of a portion corresponding to the ore feed port (13) of the ore pull groove (17a) is less than or equal to the widths of other portions of the ore pull groove (17a).
    [0002]
    SEPARATOR according to claim 1, characterized in that the plurality of rinsing water pipes (15) are concentrically arranged with respect to the permanent magnetic drum (3).
    [0003]
    A SEPARATOR according to claim 1, characterized in that two layers of discharging scrap plates (10, 11) are provided in an upper position and a lower position of an ore unloading side of the slag reduction magnetic separator and concentrate extraction.
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    法律状态:
    2018-10-30| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-08-06| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-11-17| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-04-20| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-29| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/01/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201410036271.2|2014-01-25|
    CN201410036271.2A|CN103785528B|2014-01-25|2014-01-25|Put forward essence and fall slag magnetic separator|
    PCT/CN2015/070589|WO2015109962A1|2014-01-25|2015-01-13|Magnetic separator for improving grade of refined ore and reducing slags|
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