WO2012009871A1 - 一种大型旋流喷射浮选柱 - Google Patents

一种大型旋流喷射浮选柱 Download PDF

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Publication number
WO2012009871A1
WO2012009871A1 PCT/CN2010/076186 CN2010076186W WO2012009871A1 WO 2012009871 A1 WO2012009871 A1 WO 2012009871A1 CN 2010076186 W CN2010076186 W CN 2010076186W WO 2012009871 A1 WO2012009871 A1 WO 2012009871A1
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WIPO (PCT)
Prior art keywords
flotation column
outlet
opening
openings
flotation
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PCT/CN2010/076186
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English (en)
French (fr)
Inventor
李宾
Original Assignee
Li Bin
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Publication of WO2012009871A1 publication Critical patent/WO2012009871A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/14Flotation machines
    • B03D1/1418Flotation machines using centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/14Flotation machines
    • B03D1/1443Feed or discharge mechanisms for flotation tanks
    • B03D1/1468Discharge mechanisms for the sediments

Definitions

  • the invention belongs to the field of mineral flotation technology, and relates to a mineral flotation device, in particular to a large-scale cyclone flotation column.
  • flotation equipment used in mineral flotation includes a flotation column.
  • the slurry containing the flotation agent is carried with a large amount of air into the flotation column, where it is thoroughly mixed, and then layered.
  • the floc is carried with the flocculated concentrate, discharged from the upper outlet of the flotation column, and the tailings solid Deposited at the bottom of the flotation column and exiting the flotation column through a U-shaped tailings discharge line.
  • a stirring device is arranged in the flotation column, and the device can also prevent the tailings solid from depositing at the bottom of the flotation column. discharge.
  • such a flotation column with a stirring device has a poor mixing effect on the material, so that the flotation degree of the concentrate is not high and the efficiency is low.
  • the applicant has developed a "swirl jet flotation machine", see the Chinese patent No. 02252728.
  • a cyclone aerator is installed in the flotation column.
  • the ore propeller can automatically mix air into the slurry through the cyclone inflator, and enter the flotation column by means of spraying.
  • the stirring device is omitted. The ore can be fully agitated in the flotation column, which greatly improves the flotation efficiency of the concentrate.
  • the maximum diameter of the flotation column can only be 5 meters, and the single tank 50m 3 treatment volume is 2000 tons per 24 hours. If the flotation column is large, the problem of tailings slag deposition dead angle at the bottom of the flotation column will occur, so that the large-scale flotation column with swirling spray instead of the conventional stirring device will encounter a bottleneck and cannot be broken. This flotation effect is good and the structure is good.
  • the cyclone flotation machine which is simple and easy to use and maintain, cannot meet the needs of large-scale development of mining enterprises.
  • the large-scale flotation column in the prior art also adopts a structure in which a stirring device is built, and a cyclone inflator cannot be used.
  • An object of the present invention is to improve the deficiencies of the prior art by providing a large-scale swirl jet flotation column which can use a cyclone jet aerator instead of a stirring device to cause tailings slag to have no dead angle deposited at the bottom of the flotation column.
  • a large-volume jet flotation column comprising a flotation column cavity, on which a swirl jet aerator is mounted, characterized in that more than one opening is provided at the bottom of the flotation column cavity Connecting a tailings discharge outlet pipe below the opening, the outlet end of the outlet pipe having an area smaller than that of the outlet pipe
  • the area of the inlet end of the opening at the bottom of the chamber is an upper and lower outlet tube.
  • the cross section of the flotation column may be a plurality of cross-sectional shapes such as a circle, an ellipse, a square, a diamond or a rectangle.
  • the shape of the cross section of the outlet tube at the inlet end of the opening at the bottom of the cavity is circular.
  • the inlet end of the outlet pipe may be several at the bottom of the flotation column.
  • the opening may be uniformly distributed on the lower bottom surface of the flotation column cavity, and the opening divides the area of the lower bottom surface evenly.
  • a plurality of conical tailings discharge outlets are formed in the lower part of the flotation column.
  • the outlet end of the outlet pipe is connected to a tailings discharge pipe.
  • the outlet tube may be a conical tube or a stepped conical tube connected from a plurality of diameter-reduced cylindrical tube segments from the inlet end to the outlet end.
  • the joint of each of the cylindrical tubular sections of the stepped tapered tube is a smooth transition structure.
  • Spiral ribs may be provided on the inner wall of the tube of the outlet tube to form a swirling outlet tube.
  • the swirl jet aerator may be evenly distributed on the outer wall of the flotation column.
  • a swirl jet bubble emitter i.e., a swirl jet aerator
  • the jet direction of the swirl jet aerugrator is preferably fed toward the bottom side wall of the flotation column slot.
  • the sum of the total areas of the openings on the lower surface of the cavity is closer to the area of the lower bottom surface.
  • the lower surface of the chamber of the cavity of the flotation column is circular, and seven of the outlet tubes are disposed thereon, and the upper ports of the outlet tubes, that is, the seven openings, are all equal-sized circles.
  • the maximum diameter of the opening is 1/3 of the diameter of the lower bottom surface.
  • the circles of the seven openings are tangent to each other, and the circles of the six openings around are tangential to the outer edges of the lower bottom surface.
  • the lower surface of the chamber of the cavity of the flotation column is rectangular, and six of the outlet tubes are disposed thereon, and the upper ports of the outlet tubes, that is, the six openings are equal in size.
  • a circular section opening arranged in a matrix of two rows and three columns.
  • the maximum diameter of the opening is 1/3 of the long side of the rectangle and 1/2 of the short side of the rectangle.
  • the circles of the six openings are tangent to each other and are tangent to the outer edge of the lower bottom surface.
  • the taper angle of the conical tube is greater than 0°, less than 90°, and between ⁇ and 89°; the optimum taper angle is 45° to 75°.
  • the size of the cone angle can be determined according to the type of tailings.
  • the flotation column chamber of the present invention may be any type of flotation column of the prior art, for example, it includes a flotation cell and a foam cell in communication, on the bottom side wall of the flotation cell and Mine on the bottom
  • the slurry inlet and tailings outlet, the tailings outlet is connected to the tailings discharge pipe, and the tailings slurry is discharged.
  • a concentrate outlet is provided on the bubble trough; a U-shaped tube is also connected to the bottom of the chamber.
  • the patent number of the patent application 200620167417.8 is "a swirl jet flotation column for a slurry cyclone flotation and
  • the improved flotation cell structure in the flotation device is also applicable to the flotation column of the present invention.
  • the core point of the present invention is to divide the tapered tailings evenly by providing a number of openings at the bottom of the flotation column at the tailings outlet. The outlet is discharged, thus eliminating the agitation device for large flotation columns larger than 5 meters in diameter.
  • the same facilities on the flotation column as in the prior art will not be described in detail in the present invention.
  • the large-swirl jet flotation column provided by the invention is provided with an opening on the lower bottom surface thereof, and a conical tube or a stepped cone tube is connected under the opening so that the stirring device is not provided A tailing slag deposit dead angle appears at the bottom of the flotation column.
  • the technical scheme of the invention draws the average split cone tailings discharge outlet at the bottom of the flotation column, solves the problem of large-scale tailings discharge outlet blockage of the flotation column, and can transport the slurry by using a swirl jet aerator in the large flotation column.
  • the diameter of the cyclone flotation column can be increased to more than 5 meters in diameter, and then up to 15 meters, and the single tank treatment capacity (dry mine) is increased to 2,000 tons per 20,000 tons. .
  • the flotation time of the large flotation column can be prolonged, the recovery rate can be increased by 1% to 3%, and the concentrate grade can be improved.
  • the processing capacity can be improved while the energy consumption can be greatly saved.
  • FIG. 1 is a schematic view showing the structure of a large-scale swirl jet flotation column provided by the present invention, showing a bottom outlet pipe of a cavity thereof;
  • FIG. 2 is a schematic view showing a distribution structure of an opening on a bottom surface of a flotation column in a preferred embodiment
  • FIG. 3 is a schematic view showing the distribution structure of the opening on the bottom surface of the flotation column in another preferred embodiment
  • FIG. 4 is a front, partial cross-sectional view showing the structure of a large-volume jet flotation column provided by the present invention.
  • Figure 5 is a cross-sectional structural view of an outlet tube with a spiral rib
  • Figure 6 is a top plan view of an outlet tube with a spiral rib
  • Figure 7 is a schematic cross-sectional view showing the structure of a stepped tapered tube.
  • the present invention provides a large swirl jet flotation column having a diameter greater than 5 meters.
  • the flotation column comprises a flotation column cavity 1, open on the outer wall of the flotation column cavity 1, and is connected with a slurry inlet pipe 11, on which a cyclone aerator 12 is mounted, on the flotation column
  • the bottom of the cavity 1 is provided with more than one opening.
  • seven openings 13 are provided, and a tapered outlet pipe 2 is connected under the opening 13 for tailings discharge, and the area of the outlet end of the outlet pipe is smaller than The area of the opening at the bottom of the cavity, It is a small conical tube 2 that is large and small.
  • the conical tube 2 is preferably a swirling conical tube 21, that is, as shown in Figs. 5 and 6, a spiral rib 21a is provided on the inner wall of the tube of the conical tube, so that the tailings slurry flowing in the outlet tube is rotated. Flowing through, in this way, the retention of slag on the wall of the outlet pipe can be prevented.
  • the outlet tube may also be a stepped conical tube 22 as shown in FIG.
  • a spiral rib can also be provided on the inner wall thereof.
  • the opening 13 may be evenly distributed on the lower bottom surface of the chamber of the flotation column chamber 1.
  • the outlet end of the outlet pipe 2 below each opening is connected to a tailings discharge pipe 4 through a transition pipe 3.
  • the swirl jet inflator 12 may be evenly distributed on the outer wall of the flotation column.
  • a swirling jet bubbler i.e., a swirl jet aerator
  • the jet direction being directed toward the bottom side wall of the flotation cell slot.
  • the key to the present invention is to divide the lower bottom surface of the flotation column chamber through the opening, and connect the tapered (stepped) tube under the opening so that there is no slag deposition dead angle on the lower bottom surface. Therefore, the closer the total area of the openings on the lower bottom surface of the cavity chamber is to the area of the lower bottom surface, the better.
  • the cross section of the flotation column may be circular, elliptical, square, diamond or rectangular.
  • the opening is a circular opening.
  • the bottom surface of the flotation column chamber is circular, and the opening 11 is preferably seven.
  • Each opening 11 is a circular opening of equal size, wherein one opening has a circular shape and a flotation
  • the centers of the lower bottom surfaces of the columns coincide, and the other six openings are evenly distributed around the opening at the center.
  • the diameter of the opening is 1/3 of the diameter of the lower bottom surface.
  • the lower bottom surface of the flotation column chamber is rectangular, and the openings 11 are preferably six, and each opening 11 is a circular opening of equal size, which is arranged in a matrix of two rows and three columns. shape.
  • the diameter of the opening is 1/3 of the long side of the rectangle, which is 1/2 of the short side of the rectangle.
  • the circles of the six openings are tangent to each other and are tangent to the outer edge of the lower bottom surface.
  • the tapered tube including the swirling conical tube and the stepped conical tube, may have a taper angle of more than 0 ° and less than 90 °, and between ⁇ and 89 °, an optimum taper angle of 45 ° to 75 °.
  • the cone angle can vary depending on the type of tailings.

Description

一种大型旋流喷射浮选柱 技术领域
本发明属于矿产浮选技术领域, 涉及一种矿物浮选设备, 尤其是一种大型旋 流喷射浮选柱。
背景技术
在现有技术中, 矿产浮选使用的浮选设备包括浮选柱。 含有浮选药剂的矿浆 夹带着大量的空气进入浮选柱, 在其中充分地混合, 然后分层, 泡沬中带着浮选 出来的精矿, 从浮选柱的上部出口排出, 尾矿固体沉积在浮选柱的底部, 通过 U形 的尾矿排出管路排出浮选柱。 现有技术中通常使用的浮选柱, 为了使得矿浆中的 空气、 药剂与矿物充分混合接触, 在浮选柱中要设置搅拌装置, 该装置也可以防 止尾矿固体在浮选柱底部沉积不能排出。 但是, 这种带有搅拌装置的浮选柱由于 对物料的混合效果较差, 使得精矿浮选程度不高, 效率较低。
本申请人研制出一种 "旋流喷射浮选机" , 详见专利号为 02252728. 1的中国 专利, 在该浮选机中安装了一种旋流喷射充气器, 其安装在浮选柱的周边侧壁上, 矿桨通过该旋流喷射充气器可以自动将空气混入矿浆, 并以喷射的方式进入浮选 柱中, 通过在浮选柱中设置挡板等部件, 省掉搅拌装置, 可以使得矿桨在浮选柱 中被充分地搅动, 大大提高了精矿浮选效率。
但是, 这种旋流喷射浮选机在现有技术中, 浮选柱的最大直径只能做到 5米, 单槽 50m3处理量每 24小时 2000吨。 如果浮选柱再大, 就会出现浮选柱底部尾矿 矿渣沉积死角问题, 使得用旋流喷射代替常规搅拌装置的浮选柱大型化遭遇瓶颈 而无法突破, 这种浮选效果好、 结构简单、 使用维护都非常方便的旋流喷射浮选 机不能适应矿山企业大型规模化发展需要。
所以, 现有技术中的大型浮选柱, 还都是采用内装搅拌装置的结构, 而不能 使用旋流喷射充气器。
发明内容
本发明的目的在于改进现有技术的不足, 提供一种使用旋流喷射充气器替代 搅拌装置, 而能够使得尾矿矿渣在浮选柱底部没有沉积死角的大型旋流喷射浮选 柱。
本发明的目的是这样实现的:
一种大型旋流喷射浮选柱, 其包括一浮选柱腔体, 在该矿浆进口管上安装有 旋流喷射充气器, 其特征是, 所述浮选柱腔体的底部设置一个以上开口, 在该开 口的下面连接尾矿排放出口管, 该出口管的出口端的面积小于该出口管的在所述 腔体底部开口的入口端的面积, 为上大下小的出口管。
所述浮选柱的横截面可以是圆形、 椭圆形、 方形、 菱形或长方形等多种截面 形状。
所述出口管在所述腔体底部开口的入口端的横截面的形状为圆形。
所述出口管的入口端在所述浮选柱底部可以为若干个, 这时, 所述开口可以 在所述浮选柱腔体下底面上均匀分布, 该开口将该下底面的面积平均分割, 而在 浮选柱下部形成若干个锥形尾矿排放出口。
所述出口管的出口端与一尾矿排出管相连接。
所述出口管可以是锥形管, 也可以是从入口端到出口端由若干直径逐渐减小 的圆筒管段连接起来的阶梯锥形管。
所述阶梯锥形管的各个圆筒管段的连接处最好为圆滑过渡结构。
在所述出口管的管内壁上可以设有螺旋形凸棱, 形成旋流式出口管。
所述旋流喷射充气器可以在所述浮选柱的外壁上均匀分布。 例如, 旋流喷射 气泡发射器即旋流喷射充气器在浮选柱槽底部的侧壁上均匀分布。 而旋流喷射充 气器的喷射方向优选为朝向浮选柱槽底侧面槽壁给矿。
所述腔体下底面上的所述开口的总面积之和越接近下底面的面积越好。
一个优选方案是: 所述浮选柱的腔体的腔室下底面为圆形, 其上设七个所述 出口管, 该出口管的上端口即七个所述开口均为大小相等的圆形截面开口, 其中 一个开口的圆心与浮选柱腔室下底面的圆心重合, 另外 6 个所述开口均勾地分布 在中心处的所述开口周围。
在该优选方案中, 所述开口的直径的最大值为所述下底面直径的 1/3。 这样, 7个开口的圆相互之间相切, 周围的 6个开口的圆均与下底面的外缘相切。
另一个优选方案是: 所述浮选柱的腔体的腔室下底面为长方形, 其上设六个 所述出口管, 该出口管的上端口即六个所述幵口均为大小相等的圆形截面开口, 其以两行三列的矩阵形式排列。
在该优选方案中所述开口直径的最大值为矩形长边的 1/3,为矩形短边的 1/2。 这样, 6个开口的圆相互之间相切, 并与下底面的外缘相切。
所述锥形管的锥角为大于 0° , 小于 90 ° , 在 Γ 至 89 ° 之间; 最佳锥角为 45 ° 至 75° 。
该锥角的大小可以根据尾矿的种类而定。
本发明所述的浮选柱腔体, 可以是现有技术中的任何类型的浮选柱, 例如, 它包括相连通的浮选槽和泡沫槽, 在该浮选槽的底部侧壁上和底部上分别设有矿 浆进口和尾矿出口, 尾矿出口上连接尾矿排出管, 排出尾矿矿浆。 在泡沬槽上设 有精矿出口; 还在腔体的底部连接 U 形管。 所不同的就是, 在矿浆进口的管路上 安装旋流喷射充气器, 相应地, 与本申请人申请的专利号为 200620167417.8名称 为 "一种矿浆旋流浮选所用的旋流喷射浮选柱和浮选装置" 中的改进的浮选槽结 构也适用于本发明的所述浮选柱, 本发明的核心要点是通过在尾矿出口的浮选柱 底部设置若干开口, 平均分割锥形尾矿排放出口, 从而对于直径大于 5 米的大型 浮选柱, 取消了其中的搅拌装置。 浮选柱上与现有技术相同的设施, 在本发明中 不再赘述。
本发明提供的大型旋流喷射浮选柱, 通过在其下底面上设置开口, 在该开口 的下面连接锥形管或阶梯型锥管, 使得在不设置搅拌装置的情况下, 也不会在浮 选柱的底部出现尾矿矿渣沉积死角。 本发明的技术方案在浮选柱底部釆取平均分 割锥形尾矿排放出口, 解决了浮选柱大型化尾矿排放出口堵塞问题, 可以在大型 浮选柱中使用旋流喷射充气器输送矿浆, 通过上述改进, 可以使得旋流喷射浮选 柱的直径增加到直径在 5米以上的, 继而可达到 15米, 单槽处理量 (干矿) 提高 到每 24小时 2千吨一 2万吨。 由此, 可以使得大型浮选柱的浮选时间延长, 回收 率可以提高 1%— 3%, 还可以提高精矿品位, 另外, 在处理能力得到提高的同时可 以大大节约能耗。
附图说明
图 1 为本发明提供的大型旋流喷射浮选柱的显示其腔体底部出口管的结构示 意图;
图 2为一种优选方案中浮选柱下底面上开口分布结构示意图;
图 3为另一种优选方案中浮选柱下底面上开口分布结构示意图;
图 4为本发明提供的大型旋流喷射浮选柱的主视局部剖视结构示意图。
图 5为带有螺旋凸棱的出口管的剖视结构示意图;
图 6为带有螺旋凸棱的出口管的俯视结构示意图;
图 7为阶梯锥形管的主剖视结构示意图。
具体实施方式
如图 1 和图 4所示, 本发明提供的一种大型旋流喷射浮选柱, 其直径大于 5 米。 该浮选柱包括一浮选柱腔体 1, 在该浮选柱腔体 1外壁上开口, 连接矿浆进口 管 11, 在该矿浆进口管上安装有旋流喷射充气器 12, 在浮选柱腔体 1的底部设置 一个以上开口, 在本实施例中设置了 7个开口 13, 在每个开口 13的下面连接锥形 出口管 2用于尾矿排放, 该出口管的出口端的面积小于所述腔体底部开口的面积, 为上大下小的锥形管 2。
该锥形管 2最好为旋流锥形管 21, 即如图 5、 6所示, 在锥形管的管内壁上设 有螺旋凸棱 21a, 使得该出口管内流过的尾矿浆旋转地流过, 这样, 可以防止矿渣 在出口管管壁上的滞留。
所述的出口管还可以是如图 7所示的阶梯型锥形管 22。 在其内壁上也可以设 置螺旋凸棱。
所述开口 13可以在浮选柱腔体 1腔室下底面上均匀分布。 各个开口下面的出 口管 2的出口端通过一过渡管 3与一尾矿排出管 4相连接。
所述旋流喷射充气器 12可以在所述浮选柱的外壁上均匀分布。 例如, 旋流喷 射气泡发射器即旋流喷射充气器在浮选柱槽底部的侧壁上均匀分布, 喷射方向朝 向浮选柱槽底部侧面槽壁给矿。
本发明的关键在于通过开口将浮选柱腔室的下底面进行分割, 开口下面连接 锥形 (阶梯型) 管, 使得下底面上不会有矿渣沉积死角。 因此, 所述腔体腔室的 下底面上的所述开口的总面积之和越接近下底面的面积越好。
所述浮选柱的横截面可以是圆形、 椭圆形、 方形、 菱形或长方形。
所述开口为圆形开口。
如图 2所示, 所述浮选柱腔室下底面为圆形, 所述开口 11为 7个成为优选, 每个开口 11为大小相等的圆形开口, 其中一个开口的圆形与浮选柱的下底面的圆 心重合, 另外 6 个所述开口均匀地分布在中心处的所述开口周围。 所述开口的直 径为所述下底面直径的 1/3。 这样, 7个开口的圆相互之间相切, 周围的 6个开口 的圆均与下底面的外缘相切。
如图 3所示, 所述浮选柱腔室的下底面为长方形, 所述开口 11最好为 6个, 每个开口 1 1为大小相等的圆形开口, 其排成两行三列矩阵形状。 所述开口直径为 矩形长边的 1/3, 为矩形短边的 1/2。 这样, 6个开口的圆相互之间相切, 并与下 底面的外缘相切。
所述锥形管, 包括旋流锥形管和阶梯形锥形管的锥角可以为大于 0 ° , 小于 90 ° , 在 Γ 至 89° 之间, 最佳锥角为 45 ° 至 75° 。 该锥角的大小可以根据尾矿 的种类而定。

Claims

权利要求
1. 一种大型旋流喷射浮选柱, 其包括一浮选柱腔体, 在该浮选柱腔体外壁上 开口, 连接矿桨进口管, 在该矿浆进口管上安装有旋流喷射充气器, 其特征在于: 所述浮选柱腔体的底部设置一个以上的开口, 在该开口的下面连接尾矿排放出口 管, 该出口管的出口端的面积小于该出口管的在所述腔体底部开口的入口端的面 积, 为上大下小的出口管。
2. 根据权利要求 1所述的大型旋流喷射浮选柱, 其特征在于: 所述出口管在 所述腔体底部开口的入口端的横截面的形状为圆形; 和 /或者,
所述出口管的入口端为若干个, 所述开口在所述浮选柱腔体下底面上均匀分 布, 该开口将该下底面的面积平均分割形成若干个锥形尾矿排放出口; 或者, 在所述出口管的管内壁上设有螺旋形凸棱, 形成旋流式出口管。
3. 根据权利要求 1或 2所述的大型旋流喷射浮选柱, 其特征在于: 所述浮选 柱的横截面是圆形、 椭圆形、 方形、 菱形或长方形; 或者,
所述出口管是锥形管, 或者是从入口端到出口端由若干直径逐渐减小的圆筒 管段连接起来的阶梯锥形管。
4. 根据权利要求 1或 2所述的大型旋流喷射浮选柱, 其特征在于: 所述出口 管的出口端与一尾矿排出管相连接。
5. 根据权利要求 1所述的大型旋流喷射浮选柱, 其特征在于: 所述旋流喷射 充气器在所述浮选柱的外壁上均匀分布; 或者, 所述旋流喷射充气器在浮选柱槽 底部的侧壁上均匀分布。
6. 根据权利要求 5所述的大型旋流喷射浮选柱, 其特征在于: 所述旋流喷射 气泡发射器的喷射方向朝向浮选柱槽底部侧槽壁。
7. 根据权利要求 2所述的大型旋流喷射浮选柱, 其特征在于: 所述浮选柱腔 体的腔室的下底面为圆形, 其上设七个所述出口管, 该出口管的上端口即七个所 述开口均为大小相等的圆形开口, 其中一个所述开口的圆心与浮选柱腔室的下底 面的圆心重合, 另外六个所述开口均匀地分布在中心处的所述开口周围; 或者, 所述浮选柱的腔体的腔室下底面为长方形, 其上设六个所述出口管, 该出口 管的上端口即六个所述开口均为大小相等的圆形开口, 其以两行三列的矩阵形式 排列。
8. 根据权利要求 7所述的大型旋流喷射浮选柱, 其特征在于: 所述开口的直 径的最大值为所述下底面直径的 1/3。
9. 根据权利要求 7所述的大型旋流喷射浮选柱, 其特征在于: 所述开口直径 的最大值为所述下底面长方形长边的 1/3, 为该长方形短边的 1/2。
10. 根据权利要求 1、 2以及 5- 9之一所述的大型旋流喷射浮选柱, 其特征在 于: 所述锥形管的锥角为大于 0 ° , 小于 90° ; 或者,
所述锥形管的锥角为 Γ 至 89 ° ; 或者,
所述锥形管的锥角为 45 ° 至 75° 。
PCT/CN2010/076186 2010-07-22 2010-08-20 一种大型旋流喷射浮选柱 WO2012009871A1 (zh)

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