WO2020048297A1 - 充气式大型浮选机及其浮选方法 - Google Patents

充气式大型浮选机及其浮选方法 Download PDF

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Publication number
WO2020048297A1
WO2020048297A1 PCT/CN2019/100355 CN2019100355W WO2020048297A1 WO 2020048297 A1 WO2020048297 A1 WO 2020048297A1 CN 2019100355 W CN2019100355 W CN 2019100355W WO 2020048297 A1 WO2020048297 A1 WO 2020048297A1
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WO
WIPO (PCT)
Prior art keywords
flotation
tank
foam
machine according
inflatable
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PCT/CN2019/100355
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English (en)
French (fr)
Inventor
史帅星
沈政昌
陈东
卢世杰
韩登峰
赖茂河
张明
樊学赛
Original Assignee
北矿机电科技有限责任公司
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Application filed by 北矿机电科技有限责任公司 filed Critical 北矿机电科技有限责任公司
Priority to AU2019335749A priority Critical patent/AU2019335749B2/en
Priority to ZA2019/08418A priority patent/ZA201908418B/en
Publication of WO2020048297A1 publication Critical patent/WO2020048297A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/16—Flotation machines with impellers; Subaeration machines
    • B03D1/22—Flotation machines with impellers; Subaeration machines with external blowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern

Definitions

  • the present application relates to a flotation machine, in particular to an inflatable large-scale flotation machine and a flotation method thereof.
  • Flotation is widely used in the recovery of non-ferrous metals, ferrous metals and rare precious metals.
  • the flotation machine is the main equipment to realize this process. With the continuous expansion of the scale of the ore dressing plant, higher requirements have been placed on the large-scale flotation equipment.
  • Inflatable mechanical stirring flotation machine is the main type of large-scale flotation machine. At present, the industrial application of inflatable mechanical stirring flotation machine has reached 320 cubic meters. The further enlargement of the flotation machine has become an urgent demand for market development.
  • the stirring impeller and stator of the flotation machine are generally located at the lower middle position in the flotation tank.
  • the stirring impeller must input enough energy to stir the slurry in the tank to make it circulate, so as to ensure that the slurry does not sink, and the energy consumption is large.
  • the impeller is located in a deep position, and the external air supply requires a large wind pressure, so the output performance requirements of the blower are even higher.
  • the foam tanks of the existing flotation machines are welded and fixed to the periphery of the cylindrical tank, without Adjustable, and its position is outside the upper part of the flotation tank, which is opposite to the flow direction of the pulp in the flotation tank, which is not conducive to the rapid recovery of foam depending on the flow of the pulp.
  • the impeller In order to obtain a sufficient suction capacity, the impeller cannot be immersed in the pulp too deeply, it is generally on the middle of the flotation tank, and the impeller is too close to the liquid surface, which will affect the liquid surface when the impeller is stirred Large disturbances are not conducive to the rapid recovery of the mineralized bubbles in a stable environment.
  • the purpose of this application includes providing an inflatable large-scale flotation machine and a flotation method thereof to solve the technical problem of low recovery rate of mineral particles in the prior art.
  • the inflatable large-scale flotation machine of the present application includes a flotation tank, a diversion device, a foam tank, a beam, a driving device, a stirring shaft, and a stator;
  • the flow guiding device supports the stator in the middle of the flotation tank, the impeller on the stirring shaft cooperates with the stator, and the beam is provided with a double-layer platform, and the monitoring instruments and control components are installed on the lower platform;
  • the foam groove is a built-in independent structure, which is suspended on the beam by a height-adjustable screw.
  • the outlet of the froth tank is connected with a nozzle on the wall of the flotation cell through a hose.
  • stator is detachably fixed to the flow guiding device.
  • the foam trough includes a foam trough and a tapping tube, the foam trough is annular and the notch is arranged upward, and one end of the tapping tube is fixed to an outer ring of the foam trough.
  • the plate is in communication with the foam tank, and the other end of the tapping tube is connected with the nozzle of the flotation tank as an outlet of the foam tank.
  • the outer ring plate of the foam tank body is detachably surrounded by an overflow weir adjustment plate, and the overflow weir adjustment plate can be adjusted up and down relative to the outer ring plate.
  • an adjustment screw is connected to the bottom of the foam groove body, an adjustment nut is fixed to the beam, and the adjustment screw is screwed to the adjustment nut.
  • a connecting lifting ear is connected to the groove bottom of the foam groove body, and a bottom end of the adjusting screw is hinged to the connecting lifting ear.
  • the diversion device includes a virtual bottom, a diversion cone, and a diversion cylinder, and a circular circulation hole is designed on the virtual bottom; the diversion cone is installed on the virtual bottom and is presented from bottom to top; The shape of the constriction is connected to the upper part of the deflector, and the upper end of the deflector is provided with a flange configured to fix the stator.
  • the upper part of the flotation cell is an oblique cone structure, and the oblique cone structure is inclined from the bottom to the top inward and has a constriction shape.
  • the flotation cell includes a tank vertical cylinder and a tank inclined cone as the inclined cone structure, and a lower edge of the tank inclined cone is correspondingly connected to an upper edge of the tank vertical cylinder, and The oblique cone of the groove body is necked from bottom to top.
  • a detachable small beam is provided in the middle region of the beam, the beam is provided with lifting ears, side beams are provided on both sides of the beam, and the side beam and the flotation tank The connection is fixed.
  • the cross beam includes two main beams that are parallel and spaced apart from each other, the side beams are two, and the two side beams are respectively disposed on an outer side wall of one of the main beams, and the side beams It is arranged perpendicular to the main beam.
  • the beam further includes an upper platform, and the upper platform is fixed to the main beam and arranged horizontally.
  • the upper deck is laid with a steel grid plate.
  • the beam further includes a lower platform, which is fixedly connected to the main beam; the lower platform is located below the upper platform with a gap between the two.
  • the two lower-level platforms are fixedly connected to the outer side wall of the same main beam, and are arranged at intervals along the length direction of the main beam.
  • the driving device includes a motor and a reduction gear box, and an output shaft of the reduction gear box has a hollow structure, and a shaft head of the output shaft is provided with a rotary air intake structure.
  • This application also provides a flotation method for flotation of mineral materials using the above-mentioned aerated large-scale flotation machine.
  • the flotation step includes:
  • the driving device drives the stirring shaft to rotate, and the stirring shaft drives the impeller to stir the liquid medicine and the mineral in the flotation tank, and the particles of the mineral adhere to the bubbles to form mineralized bubbles;
  • the mineralized bubbles float upward and enter the foam tank, enter the hose through the outlet of the foam tank, and then output through the nozzle of the flotation tank.
  • the inflatable large-scale flotation machine provided in the embodiment of the present application can realize the short-distance floating of the mineral particles that have adhered to the air bubbles and quickly recover. At the same time, the floating distance can be adjusted according to the recycling situation to meet the demand for the recycling rate under different conditions. And facilitate the implementation of automatic monitoring and control programs.
  • FIG. 1 is a schematic structural diagram of an inflatable large-scale flotation machine according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a foam tank in an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a beam in an embodiment of the present application.
  • the preferred embodiment of the inflatable large-scale flotation machine of the present application includes: a flotation tank, a diversion device, a foam tank, a beam, a driving device, a stirring shaft, and a stator; the diversion device supports the stator in the flotation tank; In the middle position, the impeller on the stirring shaft and the stator cooperate here.
  • the monitoring instruments and control components are installed on the lower platform.
  • the foam tank is a built-in independent structure and adopts a height-adjustable structure.
  • the screw is suspended on the cross beam, there are several radial foam grooves inside the foam groove, and a flow stabilizing plate is arranged below the radial foam groove of the inner ring.
  • the outlet of the foam groove is connected with the tube mouth on the wall of the flotation tank through a hose. .
  • the diversion device may include a virtual bottom, a diversion cone, and a diversion cylinder.
  • a circular circulation hole is designed on the virtual bottom.
  • the diversion cone is installed on the virtual bottom and has a necked shape from bottom to top.
  • the cylinder is connected to the upper part of the guide cone, and the upper end of the guide cylinder is provided with a flange plate for fixing the stator.
  • the upper part of the flotation cell may have an oblique cone structure, and the inward inclined shape is a constriction shape.
  • a detachable small beam may be provided in the middle of the beam, lifting ears are provided on the beam, side beams are provided on both sides of the beam, and the side beam is connected and fixed to the groove body of the flotation tank.
  • the driving device may include a motor and a reduction gear box.
  • the output shaft of the reduction gear box has a hollow structure, and the shaft head of the output shaft is designed with a rotary air intake structure.
  • the inflatable large-scale flotation machine of the present application can realize the short-distance floating of the mineral particles that have adhered to the air bubbles, and can be quickly recovered. At the same time, the floating distance can be adjusted according to the recycling situation to meet the demand for the recycling rate under different conditions. And facilitate the implementation of automatic monitoring and control programs.
  • the present application includes an ultra-large flotation machine. It mainly includes a flotation tank 1, a diversion device 2, a foam tank 3, a cross beam 4, a driving device 5, a stirring shaft 6, and a stator 7.
  • the lower part of the flotation tank 1 is the tank vertical cylinder 1-1, and the upper part is the tank inclined cone 1-2.
  • the upper edge of the tank vertical cylinder 1-1 welded by the tank inclined cone 1-2 is inclined inward;
  • the stator 7 of the machine is installed on the deflector 2 and the stator 7 is detachable.
  • the deflector 2 includes a virtual bottom 2-1 at the bottom of the tank body, and a guide cone 2-2 placed above the virtual bottom.
  • the diversion cylinder 2-3 connected to the cone mouth on the diversion cone is composed of the entire diversion device 2 and the stator 7 of the flotation machine in the middle position of the tank body; the beam 4 of the flotation machine is placed in the flotation tank 1 It is connected to the inclined cone 1-2 of the tank through the main beam 4-1 and the side beam 4-2.
  • the foam groove 3 is suspended below the cross beam 4 by an adjusting screw 3-5, and the height position of the foam groove 3 can be adjusted by adjusting the screw 3-5; the driving device 5 is connected and fixed by two small beams 4-3 on the cross beam 4; A stirring shaft 6 is connected below the driving device 5.
  • the foam tank 3 involved in this application mainly includes a foam tank body 3-1, a tapping pipe 3-2, a radial foam tank 3-3, a steady flow plate 3-4, an adjusting screw 3-5, Adjustment nut 3-6 and overflow weir adjustment plate 3-7.
  • the inner side of the foam groove 3 is provided with 4 connecting lifting eyes.
  • the connecting lifting eyes are hinged with the adjusting screw 3-5.
  • the adjusting screw 3-5 is provided with an adjusting nut 3-6 for fixing and locking.
  • On the inner ring plate of the foam groove body 3-1 the interfaces of the radial foam groove 3-3 are evenly distributed.
  • the radial foam groove 3-3 is connected to the foam groove body 3-1 through a flange.
  • a flow stabilization plate 3-4 is provided below the foam tank.
  • the upper side of the outer ring plate of the foam tank 1 is fixed with an overflow weir adjusting plate 3-7 by bolts.
  • the overflow weir adjusting plate 3-7 can be adjusted up and down relative to the outer ring plate to adjust the overflow weir adjusting plate 3-7.
  • the beam 4 involved in this application is mainly composed of two main beams 4-1, two side beams 4-2, two small beams 4-3, an upper platform 4-4, and a lower platform (left) 4 -5 and lower platform (right) 4-6.
  • Two small beams 4-3 are provided in the middle of the beam frame formed by the main beam 4-1, which are used to carry the stirring shaft and the driving device.
  • the two small beams 4-3 and the main beam 4-1 are detachably connected.
  • the beam 4 is provided with an upper platform 4-4, and a steel grid plate is laid on the upper platform 4-4, which can be used for aisles and maintenance platforms.
  • a lower platform (left) 4-5 and a lower platform (right) 4-6 are respectively provided at the lower positions of the beam 4. There is a certain distance between the upper platform 4-4 and the lower platform (left) 4-5 and the lower platform (right) 4-6 as the instrument installation layer.
  • This application uses a central impeller structure.
  • the impeller is located in the middle of the flotation machine tank, which can shorten the transport distance of the mineralized bubbles, make it quickly float into the foam layer, and reduce the probability of falling off the adhered mineral particles.
  • a diversion device is installed under the impeller, which can guide the slurry in the flotation tank. At low power consumption, it can ensure a large circulation of the slurry, reduce or even avoid sinking, and the diversion device starts. To support the stator.
  • the foam tank is built-in, and the slurry can flow toward the foam tank. In this way, the foam will quickly move to the foam tank, which will accelerate the foam recovery.
  • the foam tank adopts a screw suspension design, which can be adjusted up and down to change the height of the overflow weir to adapt it to the requirements of different slurry conditions on the height of the overflow weir;
  • the inside of the foam tank is sampled with a radial foam tank and a stabilizing plate, which can effectively reduce the problem of swirling pulp in the central area of a large flotation machine and allow the internal foam to be quickly recovered;
  • the built-in foam tank design makes the size of the foam tank smaller, and the foam tank of the present application is bilateral overflow, the total overflow weir is longer, and the unit load is smaller, which is conducive to the recovery of foam;
  • the beam adopts the design of the upper and lower platforms, which separates the installation space of instruments and aisles from the aisle maintenance space. All monitoring and control devices such as instruments and meters are placed on the second-floor platform, which has an independent space to protect the instruments.
  • the inflatable large-scale flotation machine and the flotation method provided by this embodiment have a relatively short transportation distance for the mineralized bubbles to float, which can reduce the probability of the mineral particles adhering thereon to fall, thereby improving the recovery rate of the mineral particles.
  • the height of the selection tank can be adjusted, which can be applied to different flotation requirements.

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Abstract

一种充气式大型浮选机及其浮选方法，浮选机包括浮选槽（1）、导流装置（2）、泡沫槽（3）、横梁（4）、驱动装置（5）、搅拌轴（6）和定子（7）；导流装置（2）支撑定子（7）处于浮选槽（1）中部位置，泡沫槽（3）为内置的独立结构体，采用调节螺杆（3-5）将泡沫槽（3）悬挂于横梁（4）上，泡沫槽（3）内侧设有若干个径向泡沫槽（3-3），径向泡沫槽（3-3）下方设有稳流板（3-4）。

Description

充气式大型浮选机及其浮选方法
相关申请的交叉引用
本申请要求于2018年09月05日提交中国专利局的申请号为201811033884.5、名称为“一种充气式大型浮选机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及一种浮选机，具体而言，涉及一种充气式大型浮选机及其浮选方法。
背景技术
浮选法广泛应用于有色金属、黑色金属和稀有贵金属的回收，浮选机是实现这一过程的主要设备。随着选矿厂规模的不断扩大，对浮选设备的大型化也提出了更高要求。充气机械搅拌式浮选机是浮选机大型化的主要机型，目前工业应用的充气机械搅拌式浮选机规格已达到320立方米。浮选机的进一步大型化已成为市场发展的迫切需求。
现有技术中，目前常见的大型浮选机有自吸气浮选机和外充气式浮选机。
现有技术的缺点：
对于外充气式浮选机，设备大型化后，浮选槽内部空间变大，为了保证内部矿浆不沉槽，浮选机的搅拌叶轮和定子一般都设置在浮选槽内的下部中间位置，搅拌叶轮必须输入足够大的能量，对槽内的矿浆进行搅拌，使其循环起来，才能保障矿浆不沉槽，能耗需求较大。叶轮位置深，对于外部供气，需要鼓入的风压较大，这样对鼓风机的输出性能要求就更高。叶轮位置较深还存在一个工艺上的问题，就是浮选矿化气泡要上浮到矿浆表面的距离较长，而长距离的气泡运输会导致已粘附在气泡上的有用矿物颗粒的脱落概率上升，不利于金属矿物的回收。调节液面高低可以调节矿化气泡的上浮距离，进而调节矿物浮选过程的回收效果，现有浮选机(浮选柱)的泡沫槽都是焊接固定在圆柱形槽体的周边，不具有调节性，且其位置是在浮选槽体的上部外侧，与浮选槽内的矿浆流动方向相反，不利于泡沫依靠矿浆流动快速回收。
对于自吸气浮选机，为了获得足够的吸气量，叶轮不能浸没矿浆太深，一般都在浮选槽的中部偏上，而叶轮太过靠近液面，在叶轮搅拌时会对液面产生较大的扰动，不利于已矿化气泡在稳定环境下的快速回收。
发明内容
本申请的目的包括提供一种充气式大型浮选机及其浮选方法，以解决现有技术矿物颗粒回收率低的技术问题。
本申请的目的至少通过以下技术方案实现的：
本申请的充气式大型浮选机，包括浮选槽、导流装置、泡沫槽、横梁、驱动装置、搅拌轴和定子；
所述导流装置支撑定子处于浮选槽中部位置，搅拌轴上的叶轮与定子在此处配合，所述横梁上设有双层平台，监测仪器仪表和控制元器件安装在下层平台上；
所述泡沫槽为内置的独立结构体，采用高度可调节的螺杆悬挂于横梁之上，所述泡沫槽内侧设有若干个径向泡沫槽，内圈的径向泡沫槽下方设有稳流板，所述泡沫槽的出口与浮选槽壁上的管口通过软管连接。
可选地，所述定子可拆卸式固定于所述导流装置。
可选地，所述泡沫槽包括泡沫槽体和出矿管，所述泡沫槽体为环状且槽口朝上设置，所述出矿管的一端固接于所述泡沫槽体的外圈板且与所述泡沫槽体连通，所述出矿管的另一端作为所述泡沫槽的出口与所述浮选槽的管口连接。
可选地，所述泡沫槽体的外圈板可拆卸式围设有溢流堰调节板，且所述溢流堰调节板能够相对所述外圈板上下调节。
可选地，所述泡沫槽体的槽底连接有调节螺杆，所述横梁固接有调节螺母，所述调节螺杆与所述调节螺母螺接。
可选地，所述泡沫槽体的槽底连接有连接吊耳，所述调节螺杆的底端铰接于所述连接吊耳。
可选地，所述导流装置包括虚底、导流锥和导流筒，所述虚底上设计有圆形循环孔；所述导流锥安装在虚底上，且自下而上呈缩口状；所述导流筒与导流筒的上部相连，所述导流筒的上端设有配置成固定所述定子的法兰盘。
可选地，所述浮选槽的上部为斜锥结构，且所述斜锥结构自下向上向内倾斜呈缩口状。
可选地，所述浮选槽包括槽体竖筒和作为所述斜锥结构的槽体斜锥，所述槽体斜锥的下边缘与所述槽体竖筒的上边缘对应连接，且所述槽体斜锥自下向上呈缩口状。
可选地，所述横梁的中部区域设有可拆卸的小梁，所述小梁设有起吊吊耳，所述横梁的两侧均设有侧梁，所述侧梁与所述浮选槽连接固定。
可选地，所述横梁包括两根相互平行且间隔设置的主梁，所述侧梁为两根，两根所述侧梁分别设置于其中一根主梁的外侧壁，且所述侧梁与所述主梁垂直设置。
可选地，所述横梁还包括上层平台，所述上层平台固接于所述主梁且水平设置。
可选地，所述上层平台铺设有钢格栅板。
可选地，所述横梁还包括下层平台，所述下层平台固接于所述主梁；所述下层平台位于所述上层平台的下方，两者之间留有间隙。
可选地，所述下层平台为两个，两个所述下层平台固接于同一所述主梁的外侧壁，且沿所述主梁的长度方向间隔排布。
可选地，所述驱动装置包括电机和减速箱，所述减速箱的输出轴为中空结构，输出轴的轴头设计有旋转进气结构。
本申请还提供一种浮选方法，使用上述充气式大型浮选机对矿料进行浮选，浮选步骤包括：
通过调节螺杆的悬挂长度，对泡沫槽在浮选槽内的高度进行调节；
向浮选槽内加入药液和矿料；
向药液和矿料内通入气体；
驱动装置驱动搅拌轴转动，搅拌轴带动叶轮对浮选槽内的药液及矿料进行搅拌，矿料颗粒粘附于气泡形成矿化气泡；
矿化气泡向上浮动并进入泡沫槽内，并经泡沫槽的出口进入软管，随后经浮选槽的管口输出。
由上述本申请提供的技术方案可以看出，本申请实施例提供的充气式大型浮选机，能实现已粘附在气泡上的矿物颗粒短距离上浮，并快速回收。同时，能够根据回收情况进行上浮距离的调整，以适应不同条件下对回收率的需求。并为自动监测控制方案的实施提供便利。
附图说明
图1为为本申请实施例提供的充气式大型浮选机的结构示意图；
图2为本申请实施例中泡沫槽的结构示意图；
图3为本申请实施例中横梁的结构示意图。
图中：
1.浮选槽；2.导流装置；3.泡沫槽；4.横梁；5.驱动装置；6.搅拌轴；7.定子；
1-1.槽体竖筒；1-2.槽体斜锥；2-1.虚底；2-2.导流锥；2-3.导流筒；
3-1.泡沫槽体；3-2.出矿口；3-3.径向泡沫槽；3-4.稳流板；3-5.调节螺杆；3-6.调节螺母；3-7.溢流堰调节板；
4-1.主梁；4-2.侧梁；4-3.小梁；4-4.上层平台；4-5.下层平台(左)；4-6.下层平台(右)。
具体实施方式
下面将对本申请实施例作进一步地详细描述。本申请实施例中未作详细描述的内容属于本领域专业技术人员公知的现有技术。
本申请的充气式大型浮选机，其较佳的具体实施方式是：包括浮选槽、导流装置、泡沫槽、横梁、驱动装置、搅拌轴和定子；导流装置支撑定子处于浮选槽中部位置，搅拌轴上的叶轮与定子在此处配合，横梁上设有双层平台，监测仪器仪表和控制元器件安装在下层平台上；泡沫槽为内置的独立结构体，采用高度可调节的螺杆悬挂于横梁之上，泡沫槽内侧设有若干个径向泡沫槽，内圈的径向泡沫槽下方设有稳流板，泡沫槽的出口与浮选槽壁上的管口通过软管连接。
可选地，导流装置可以包括虚底、导流锥和导流筒，虚底上设计有圆形循环孔，导流锥安装在虚底上，自下而上呈缩口状，导流筒与导流锥上部相连，导流筒上端设有固定定子的法兰盘。
可选地，浮选槽上部可以为斜锥结构，且向内倾斜呈缩口状。
可选地，可以在横梁中间设有可拆卸的小梁，小梁上设有起吊吊耳，横梁两侧设有侧梁，侧梁与浮选槽的槽体连接固定。
可选地，驱动装置可以包括电机和减速箱，减速箱的输出轴为中空结构，输出轴的轴头设计有旋转进气结构。
本申请的充气式大型浮选机，能实现已粘附在气泡上的矿物颗粒短距离上浮，并快速回收。同时，能够根据回收情况进行上浮距离的调整，以适应不同条件下对回收率的需求。并为自动监测控制方案的实施提供便利。
如图1至图3所示，本申请包括一种超大型浮选机。其主要包括浮选槽1、导流装置2、泡沫槽3、横梁4、驱动装置5、搅拌轴6和定子7。浮选槽1下部为槽体竖筒1-1，上部为槽体斜锥1-2，槽体斜锥1-2焊接的槽体竖筒1-1的上边缘，且向内倾斜；浮选机的定子7安装在导流装置2上，且定子7可拆卸，导流装置2则包括位于槽体底部的虚底2-1、置于虚底之上的导流锥2-2和连接在导流锥上锥口处的导流筒2-3组成，整个导流装置2以及浮选机的定子7处于槽体的中部位置；浮选机的横梁4置于浮选槽1正上方，并通过主梁4-1和侧梁4-2与槽体斜锥1-2相接。泡沫槽3通过调节螺杆3-5悬挂于横梁4的下方，通过调节螺杆3-5可以调节泡沫槽3的高度位置；驱动装置5通过横梁4上的两个小梁4-3连接固定；在驱动装置5的下方连接有搅拌轴6。
如图2所示，本申请涉及的泡沫槽3主要包括泡沫槽体3-1、出矿管3-2、径向泡沫槽3-3、稳流板3-4、调节螺杆3-5、调节螺母3-6和溢流堰调节板3-7。泡沫槽3的内侧分 布有4个连接吊耳，通过连接吊耳与调节螺杆3-5铰接，调节螺杆3-5上装有起固定和锁紧作用的调节螺母3-6。在泡沫槽体3-1的内圈板上均匀分布着径向泡沫槽3-3的接口，径向泡沫槽3-3通过法兰与泡沫槽体3-1相联通，在每个径向泡沫槽下方设有稳流板3-4。泡沫槽体1的外圈板上侧通过螺栓固定着溢流堰调节板3-7，溢流堰调节板3-7能够相对外圈板上下调节，以调节溢流堰调节板3-7的上边缘与外圈板的上边缘的高度差。使用过程中，泡沫槽通过调节螺杆3-5和调节螺母3-6与横梁4连接，使整个泡沫槽悬挂在横梁4的下方。
如图3所示，本申请涉及的横梁4主要由两根主梁4-1、两根侧梁4-2、两根小梁4-3、上层平台4-4、下层平台(左)4-5和下层平台(右)4-6组成。主梁4-1构成的横梁骨架中部设置有两根小梁4-3，用于承载搅拌轴和驱动装置，两根小梁4-3与主梁4-1之间采用可拆卸连接方式。横梁4设置有上层平台4-4，在上层平台4-4上铺上钢格栅板后可用于走道和检修平台。横梁4的下部位置分别设置有下层平台(左)4-5和下层平台(右)4-6。上层平台4-4和下层平台(左)4-5及下层平台(右)4-6之间留有一定的距离空间，作为仪表安装层。
本申请的有益效果至少包括：
作为超大型浮选机技术，本申请的技术方案带来的有益效果包括以下几个方面：
1)本申请采用中置叶轮结构，叶轮处于浮选机槽体的中部位置，可缩短矿化气泡的运输距离，使其快速上浮进入泡沫层，降低已粘附矿物颗粒的脱落概率。
2)采用中置叶轮结构，叶轮浸没在矿浆中的深度较浅，对于外充气式浮选机，能够有效降低其充气压力要求，故能够降低对所配套鼓风机的压力需求，在相同功率下可获得更大的风量。
3)叶轮底下设置导流装置，可起到对浮选机槽内的矿浆起到导流作用，低功耗下可保证矿浆的大循环，减少甚至避免沉槽现象发生，同时导流装置起到对定子的支撑作用。
4)泡沫槽内置，矿浆能够向着泡沫槽流动，这样在表层矿浆的带动下，泡沫会快速向泡沫槽移动，加快泡沫的回收；
5)泡沫槽采用螺杆悬挂式设计，可上下调整，进而改变溢流堰高度，使其适应不同矿浆条件对溢流堰高度变化的要求；
6)泡沫槽内侧取样设有径向泡沫槽及稳流板，可有效降低大型浮选机中心区域矿浆打旋的问题，并使内部泡沫快速得到回收；
7)内置泡沫槽设计，使得泡沫槽的尺寸更小，且本申请的泡沫槽为双边溢流，总的溢流堰长度更长，单位载荷更小，有利于泡沫的回收；
8)浮选机槽体的上部斜锥设计，向内倾斜，有助于推动泡沫向中部的泡沫槽移动。
9)横梁采用上下层平台的设计，将仪器仪表的安装空间与走道维修空间分开，仪器仪表等监测控制装置全部放置在二层平台，具有独立空间，起到对仪器仪表的保护作用；
10)将仪器仪表放置在下层平台，安装时更接近所需监测控制的对象(即浮选槽内的矿浆、液位等)，不必加装过长和过高的仪器支撑架或支撑平台，保障了安装支撑强度和测量控制精度。
以上所述，仅为本申请较佳的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请披露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应该以权利要求书的保护范围为准。
工业实用性
本实施例提供的充气式大型浮选机及其浮选方法，矿化气泡上浮的运输距离较短，能够降低其上粘附的矿物颗粒脱落的概率，从而提高矿物颗粒的回收率；且浮选槽的高度能够调节，能够适用于不同的浮选要求。

Claims (17)

  1. 一种充气式大型浮选机，其特征在于，包括浮选槽、导流装置、泡沫槽、横梁、驱动装置、搅拌轴和定子；
    所述导流装置支撑定子处于浮选槽中部位置，搅拌轴上的叶轮与定子在此处配合，所述横梁上设有双层平台，监测仪器仪表和控制元器件安装在下层平台上；
    所述泡沫槽为内置的独立结构体，采用高度可调节的螺杆悬挂于横梁之上，所述泡沫槽内侧设有若干个径向泡沫槽，内圈的径向泡沫槽下方设有稳流板，所述泡沫槽的出口与浮选槽壁上的管口通过软管连接。
  2. 根据权利要求1所述的充气式大型浮选机，其特征在于，所述定子可拆卸式固定于所述导流装置。
  3. 根据权利要求1或2所述的充气式大型浮选机，其特征在于，所述泡沫槽包括泡沫槽体和出矿管，所述泡沫槽体为环状且槽口朝上设置，所述出矿管的一端固接于所述泡沫槽体的外圈板且与所述泡沫槽体连通，所述出矿管的另一端作为所述泡沫槽的出口与所述浮选槽的管口连接。
  4. 根据权利要求3所述的充气式大型浮选机，其特征在于，所述泡沫槽体的外圈板可拆卸式围设有溢流堰调节板，且所述溢流堰调节板能够相对所述外圈板上下调节。
  5. 根据权利要求3或4所述的充气式大型浮选机，其特征在于，所述泡沫槽体的槽底连接有调节螺杆，所述横梁固接有调节螺母，所述调节螺杆与所述调节螺母螺接。
  6. 根据权利要求3-5中任一项所述的充气式大型浮选机，其特征在于，所述泡沫槽体的槽底连接有连接吊耳，所述调节螺杆的底端铰接于所述连接吊耳。
  7. 根据权利要求1-6中任一项所述的充气式大型浮选机，其特征在于，所述导流装置包括虚底、导流锥和导流筒，所述虚底上设计有圆形循环孔；所述导流锥安装在虚底上，且自下而上呈缩口状；所述导流筒与导流筒的上部相连，所述导流筒的上端设有配置成固定所述定子的法兰盘。
  8. 根据权利要求1-7中任一项所述的充气式大型浮选机，其特征在于，所述浮选槽的上部为斜锥结构，且所述斜锥结构自下向上向内倾斜呈缩口状。
  9. 根据权利要求8所述的充气式大型浮选机，其特征在于，所述浮选槽包括槽体竖筒和作为所述斜锥结构的槽体斜锥，所述槽体斜锥的下边缘与所述槽体竖筒的上边缘对应连接，且所述槽体斜锥自下向上呈缩口状。
  10. 根据权利要求1-9中任一项所述的充气式大型浮选机，其特征在于，所述横梁的中部区域设有可拆卸的小梁，所述小梁设有起吊吊耳，所述横梁的两侧均设有侧梁，所述 侧梁与所述浮选槽连接固定。
  11. 根据权利要求10所述的充气式大型浮选机，其特征在于，所述横梁包括两根相互平行且间隔设置的主梁，所述侧梁为两根，两根所述侧梁分别设置于其中一根主梁的外侧壁，且所述侧梁与所述主梁垂直设置。
  12. 根据权利要求11所述的充气式大型浮选机，其特征在于，所述横梁还包括上层平台，所述上层平台固接于所述主梁且水平设置。
  13. 根据权利要求12所述的充气式大型浮选机，其特征在于，所述上层平台铺设有钢格栅板。
  14. 根据权利要求12或13所述的充气式大型浮选机，其特征在于，所述横梁还包括下层平台，所述下层平台固接于所述主梁；所述下层平台位于所述上层平台的下方，两者之间留有间隙。
  15. 根据权利要求14所述的充气式大型浮选机，其特征在于，所述下层平台为两个，两个所述下层平台固接于同一所述主梁的外侧壁，且沿所述主梁的长度方向间隔排布。
  16. 根据权利要求1-15中任一项所述的充气式大型浮选机，其特征在于，所述驱动装置包括电机和减速箱，所述减速箱的输出轴为中空结构，输出轴的轴头设计有旋转进气结构。
  17. 一种浮选方法，其特征在于，使用权利要求1-16中任一项的充气式大型浮选机对矿料进行浮选，浮选步骤包括：
    通过调节螺杆的悬挂长度，对泡沫槽在浮选槽内的高度进行调节；
    向浮选槽内加入药液和矿料；
    向药液和矿料内通入气体；
    驱动装置驱动搅拌轴转动，搅拌轴带动叶轮对浮选槽内的药液及矿料进行搅拌，矿料颗粒粘附于气泡形成矿化气泡；
    矿化气泡向上浮动并进入泡沫槽内，并经泡沫槽的出口进入软管，随后经浮选槽的管口输出。
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