WO2020220583A1 - 一种复合流强化浮选分离装置及方法 - Google Patents

一种复合流强化浮选分离装置及方法 Download PDF

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Publication number
WO2020220583A1
WO2020220583A1 PCT/CN2019/109881 CN2019109881W WO2020220583A1 WO 2020220583 A1 WO2020220583 A1 WO 2020220583A1 CN 2019109881 W CN2019109881 W CN 2019109881W WO 2020220583 A1 WO2020220583 A1 WO 2020220583A1
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Prior art keywords
flotation
flow
mineralization
pipe
slurry
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PCT/CN2019/109881
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English (en)
French (fr)
Inventor
张海军
刘炯天
闫小康
王利军
曹亦俊
刘清侠
李丹龙
李臣威
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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Priority to AU2019443099A priority Critical patent/AU2019443099B2/en
Publication of WO2020220583A1 publication Critical patent/WO2020220583A1/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
    • B03D1/02—Froth-flotation processes
    • 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

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  • the invention relates to a flotation separation device and method, in particular to a composite flow enhanced flotation separation device and method used for the flotation separation of difficult-to-float fine mineral particles or coal particles.
  • Flotation is a method of sorting according to the difference in mineral flotability according to the physical and chemical properties of the surface of mineral particles. Flotation also has a fine-grained effect, too coarse ore particles (greater than 0.1mm) and very fine ore particles (less than 10 ⁇ m) during flotation are relatively difficult to float, and the recovery rate is low. During the flotation of coarse particles, the shedding force of the ore particles increases due to the large weight. In the flotation of very fine particles (usually refers to the sludge less than 5-10 ⁇ m), because the quality of the sludge is very small, it is easy to adhere to the surface of the coarse particles, which reduces the floatability of the coarse particles and deteriorates the selectivity.
  • Very fine particles are strong with water, have low collision probability with bubbles, and have poor mineralization effect.
  • due to the large surface area of the sludge they will adsorb a large amount of flotation reagent in the slurry, which reduces the concentration of reagent in the slurry and destroys the normal The flotation process reduces the flotation index.
  • a high-speed impinging flow, cross-flow, and circulation are provided.
  • the impinging flow and cross-flow generated by the turbulent mineralization reactor increase the collision probability of fine and difficult-to-float particles and bubbles, and enhance the mixing Mineralization effect; at the same time, the circulation generated by the circulation flotation device plays a synergistic effect of secondary separation, strengthening the suspension of coarse particles and increasing the flotation bubble load.
  • the compound flow enhanced flotation separation device and method are provided.
  • a composite flow enhanced flotation separation device which includes a circulating pump, a turbulent flow mineralization reactor, a flotation tank, a circulation flotation device and a medium ore tailings separator;
  • the turbulent flow mineralization reactor is a closed cylinder with a slurry distribution pipe arranged side by side around the cylinder, and an impinging flow premineralization pipe and a cross-flow premineralization pipe are alternately arranged between the cylinder and the slurry distribution pipe.
  • the cross-flow pre-mineralization tube is connected to the cylinder along the tangential direction
  • the impinging stream pre-mineralization tube is connected to the cylinder along the radial direction
  • the cross-flow pre-mineralization tube and the impinging stream pre-mineralization tube are both equipped with a microbubble generator;
  • the flotation tank body is a cylindrical structure, the upper part of the flotation tank body is provided with a foam tank, the bottom of the foam tank is provided with a concentrate discharge pipe, and the upper part of the flotation tank body is provided with a feeder for feeding
  • a dispersing plate under the device a sieve plate is arranged in the middle of the flotation tank body, a bottom plate is provided at the bottom of the flotation tank body, a middle mine tailings separator is arranged at the center of the bottom plate, a middle mine tailings separator and the side of the flotation tank body
  • a circulation flotation device is arranged between the walls.
  • the circulation flotation device includes a ring plate with a concentric structure with the middle mine tailings separator.
  • a plurality of circulation jet cavities are arranged on the inner side of the ring plate, and nozzles are arranged on the circulation jet cavity.
  • the direction of the nozzle is along the inner wall of the annular plate, the upper part of the circulation jet cavity is provided with a slurry inlet, and a slurry injection pipe is arranged between the slurry inlet and the bottom of the cylindrical structure of the turbulent mineralization reactor;
  • the middle mine tailings separator includes a columnar structure with a hopper groove at the bottom, an inner tube in the columnar structure, a baffle plate above the inner tube, a tailing discharge tube on the side wall, and a bottom of the hopper groove China Mines discharge pipe;
  • the medium ore discharge pipe is connected with the inlet of the circulating pump through the pipeline, and the outlet of the circulating pump is connected with the slurry distribution pipe through the pipeline.
  • the cross-flow pre-mineralization tube and the impinging stream pre-mineralization tube are both in the form of a venturi tube; the cross-flow pre-mineralization tube and the impinging-stream pre-mineralization tube are arranged at intervals; adjacent cross-flow pre-mineralization tubes are connected tangentially The direction of entering the cylinder is opposite; the wall of the tailings separator of the medium mine is 0.5-1.0m higher than the bottom of the flotation tank.
  • a forced circulation fast flotation separation method includes the following steps:
  • the circulating pump feeds the slurry dispersed through the sieve plate into the slurry distribution and feeds it into the cylinder through the impinging stream pre-mineralization pipe and the cross-flow pre-mineralization pipe on the slurry distribution, and passes through the slurry while feeding into the cylinder
  • the jet pipe mixes the slurry with sufficient air to form bubbles in the slurry.
  • the slurry after mixing will form a high-speed impinging stream and forced shear cross-flow in the cylinder to achieve the full mixing and dispersion of the particles in the slurry and the agent in the cylinder.
  • the compressed air is sent into the cross-flow premineralization tube and multiple impinging flow premineralization tubes through the microbubble generator, and the particles and microbes are realized in the turbulent mineralization reactor cylinder.
  • the forced mixed mineralization of foams provides guarantee for the subsequent secondary separation;
  • the slurry at the bottom of the cylinder enters the circulation flotation device in the flotation tank through the slurry injection pipe, and is sprayed out through the nozzles of multiple circulation injection chambers of the circulation flotation device to form a circulation. Under the action of the circulation, the slurry The easy-floating particles rise and float quickly, and are discharged through the concentrate discharge pipe outlet of the concentrate discharge pipe on the foam tank;
  • the medium floatable particles in the slurry collide and adhere to the bubbles under the action of the circulation generated by the circulation flotation device, and the adhered medium floatable particles float up to the foam tank together with the easily floatable particles.
  • the concentrate discharge pipe outlet of the concentrate discharge pipe is discharged, and the unadhered particles are fed into the turbulent mineralization reactor through the circulation pump through the medium ore discharge pipe again, and are fed into the floatation reactor by the injection pipe after high-efficiency mineralization.
  • the circulation flotation device at the bottom of the tank body realizes cyclic separation;
  • Difficult-to-float particles that are not adhered by bubbles in the circulating flotation device enter the middle mine tailings separator.
  • the set value is the distance from the foam overflow
  • the tailings discharge pipe at the bottom of the flotation tank body is opened, and a part is discharged through the tailings discharge pipe outlet of the tailings discharge pipe on the side wall of the Zhongmine tailings separator, and the other part is discharged through the Zhongkuang again
  • the material pipe is fed into the turbulent mineralization reactor through a circulating pump, and after high-efficiency mineralization, it is fed into the circulating flotation device at the bottom of the flotation tank through a jet pipe to realize cyclic separation.
  • the present invention integrates high-speed impinging flow, cross-flow, and circulation.
  • the impinging flow and cross-flow generated by the turbulent mineralization reactor improve the mineralization effect of difficult-to-float particles; the circulation generated by the circulation flotation device has two effects.
  • the synergistic effect of secondary sorting strengthening the suspension of coarse particles and increasing the load of flotation bubbles.
  • Figure 1 is a schematic diagram of the structure of the composite flow enhanced flotation separation device of the present invention.
  • Figure 2 is a schematic diagram of the structure of the circulation flotation device of the present invention.
  • a composite flow enhanced flotation separation device of the present invention includes a circulating pump 1, a turbulent flow mineralization reactor, a flotation tank body 3, a circulation flotation device 15 and a medium ore tailings separator;
  • the turbulent flow mineralization reactor is a cylinder with a closed structure.
  • the slurry distribution pipe 7 is arranged side by side around the cylinder.
  • the impinging flow premineralization pipe 9 and the cross-flow premineralization pipe are alternately arranged between the cylinder and the slurry distribution pipe.
  • the cross-flow premineralization tube 10 is connected to the cylinder along the tangential direction
  • the impinging stream premineralization tube 9 is connected to the cylinder along the radial direction
  • the cross-flow premineralization tube 10 and the impinging stream premineralization tube 9 are both A microbubble generator 8 is provided;
  • the cross-flow premineralization tube 10 and the impinging flow premineralization tube 9 are both in the form of a venturi tube;
  • the cross-flow premineralization tube 10 and the impinging flow premineralization tube 9 are arranged at intervals ;
  • the adjacent cross-flow premineralization tubes 10 are connected to the cylinder in the opposite direction;
  • the wall of the tailings separator of the middle mine is 0.5-1.0m higher than the bottom plate of the flotation cell 3;
  • the flotation tank body 3 has a cylindrical structure.
  • a foam tank 2 is provided above the flotation tank body 3, a concentrate discharge pipe 14 is provided at the bottom of the foam tank 2, and a flotation tank body 3 is provided above
  • the feeder 12 is provided with a dispersing plate 13 below the feeder 12, a sieve plate 5 is provided in the middle of the flotation tank body 3, a bottom plate 18 is provided at the bottom of the flotation tank body 3, and medium ore tailings are provided at the center of the bottom plate 18
  • a circulating flotation device 15 is arranged between the middle mine tailings separator and the side wall of the flotation tank 3, as shown in Figure 2, the circulating flow flotation device 15 includes a concentric circle with the middle mine tailings separator Structure of the ring plate 19, the inner side of the ring plate 19 is provided with a plurality of circulating jet cavities 20, the annular jet cavity 20 is provided with nozzles, and the nozzle direction is along the inner wall of the annular plate.
  • the middle mine tailings separator includes a columnar structure with a funnel groove at the bottom, an inner tube 16 in the columnar structure, a baffle 4 above the inner tube 16, a tailings discharge tube 17 on the side wall, and a hopper
  • the bottom of the tank is provided with a medium ore discharge pipe 6;
  • the medium ore discharge pipe 6 is connected to the inlet of the circulating pump 1 through a pipeline, and the outlet of the circulating pump 1 is connected to a slurry distribution pipe 7 through a pipeline.
  • a forced circulation fast flotation separation method includes the following steps:
  • the circulating pump 1 feeds the slurry dispersed by the sieve plate 5 into the slurry distribution 7 and feeds it into the cylinder through the impinging flow premineralization pipe 9 and the cross-flow premineralization pipe 10 on the slurry distribution 7, and then At the same time, the slurry is mixed with sufficient air through the slurry jet pipe 8 to form bubbles in the slurry.
  • the slurry after mixing will form a high-speed impinging flow and forced shear cross-flow in the cylinder to realize the particles in the slurry in the cylinder.
  • the slurry at the bottom of the cylinder enters the circulation flotation device 15 in the flotation tank 3 through the slurry injection pipe 11, and is sprayed out through the nozzles of the multiple circulation injection chambers 20 of the circulation flotation device 15 to form a circulation.
  • the easy-floating particles in the slurry rise and float rapidly, and are discharged through the concentrate discharge pipe outlet C of the concentrate discharge pipe 14 on the foam tank 2;
  • the medium floatable particles in the slurry collide with and adhere to the bubbles under the action of the circulation generated by the circulation flotation device 15, and the adhered medium floatable particles float up to the foam tank 2 together with the easily floatable particles.
  • the concentrate discharge pipe outlet C of the concentrate discharge pipe 14 on the tank is discharged, and the particles that are not adhered are again fed into the turbulent mineralization reactor through the medium ore discharge pipe 6 through the circulating pump 1, and after high-efficiency mineralization
  • the jet pipe 11 is fed into the circulation flotation device 15 at the bottom of the flotation tank body 3 to realize cyclic separation;
  • the difficult-to-float particles that are not adhered by bubbles in the circulating flotation device 15 enter the middle mine tailings separator.
  • the set value is the distance foam In the 0.5-1.5m interval of the overflow surface, the tailings discharge pipe 17 at the bottom of the flotation tank body 3 is opened, and a part is discharged through the tailings discharge pipe outlet B of the tailings discharge pipe 17 on the side wall of the Zhongmine tailings separator.
  • a part of it is fed into the turbulent mineralization reactor through the circulating pump 1 through the medium ore discharge pipe 6 again, and is fed into the circulating flotation device 15 at the bottom of the flotation tank 3 from the jet pipe 11 after high-efficiency mineralization to realize circulating separation.

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Abstract

一种复合流强化浮选分离装置及方法，适用于难浮微细矿物颗粒或煤粒的浮选。浮选分离装置包括循环泵（1）、湍流矿化反应器、浮选槽体（3）、环流浮选器（15）和中矿尾矿分离器，湍流矿化反应器为圆筒形结构，圆筒周边设置有多个错流预矿化管（10）、多个撞击流预矿化管（9）、矿浆分配管（7）、矿浆喷射管（11），错流预矿化管（10）与圆筒沿切向连接。浮选分离方法包括将矿浆给入浮选槽体（3）内，易浮颗粒快速升浮并经精矿出料管（14）排出，中等可浮颗粒经柱底部环流浮选器（15）分选后，部分上浮至槽体泡沫槽（2），由精矿出料管（14）排出，环流浮选器（15）分选后的难浮颗粒，一部分作为尾矿排出槽体，一部分经循环泵（1）给入湍流矿化反应器，经高效矿化后喷射给入环流浮选器（15）实现循环分选。复合流强化浮选分离装置及方法集高速撞击流、错流、环流于一体，使用效果好，分选效率高。

Description

一种复合流强化浮选分离装置及方法 技术领域
本发明涉及一种浮选分离装置及方法，尤其适用于难浮微细矿物颗粒或煤粒的浮选分离使用的复合流强化浮选分离装置及方法。
背景技术
浮选是根据矿物颗粒表面物理化学性质的不同，按矿物可浮性的差异进行分选的方法。浮选也具有明细的粒度效应，浮选时过粗的矿粒(大于0.1mm)和极细的矿粒(小于10μm)都相对不好浮，回收率较低。在浮选粗粒时，由于重量较大，使矿粒脱落力增加。在浮选极细粒(通常指小于5～10μm的矿泥)时，由于矿泥质量很小，很容易黏附在粗粒表面上，使粗粒可浮性降低，使选择性变坏，而且极细颗粒随水性强，与气泡碰撞概率低，矿化效果差，同时由于矿泥比表面较大，它们在矿浆中会吸附大量的浮选药剂，使矿浆中药剂浓度降低，破坏了正常的浮选过程，使浮选指标降低。
发明内容
技术问题：针对上述技术问题，提供一种集高速撞击流、错流、环流于一体，湍流矿化反应器产生的撞击流和错流提高了微细难浮颗粒与气泡的碰撞概率，强化了混合矿化效果；同时环流浮选器产生的环流，起到了二次分选、强化粗颗粒悬浮和提高浮选气泡载荷的协同作用的复合流强化浮选分离装置及方法。
技术方案：为实现上述技术目的，复合流强化浮选分离装置，它包括循环泵、湍流矿化反应器、浮选槽体、环流浮选器和中矿尾矿分离器；
其中所述的湍流矿化反应器为密闭结构的圆筒，圆筒周围并排设置矿浆分配管，圆筒与矿浆分配管之间交替设有撞击流预矿化管和错流预矿化管，错流预矿化管与圆筒沿切向连接，撞击流预矿化管与圆筒沿径向连接，错流预矿化管和撞击流预矿化管上均设置有微泡发生器；
所述的浮选槽体为圆筒形结构，浮选槽体上方设有泡沫槽，泡沫槽的最下方设有精矿出料管，浮选槽体的上方设有给料器，给料器下方设有分散板，浮选槽体内中部设有筛板，浮选槽体底部设有底板，底板圆心处设有中矿尾矿分离器，中矿尾矿分离器与浮选槽体侧壁之间设有环流浮选器，所述环流浮选器包括与中矿尾矿分离器同心圆结构的环板，环板内侧上设有多个环流喷射腔，环流喷射腔上设有喷口，喷口方向沿着环板内壁，环流喷射腔上部设有进浆口，进浆口与湍流矿化反应器的圆筒形结构底部之间设有矿浆喷射管；
所述中矿尾矿分离器包括为柱状结构，底部设有漏斗槽，柱状结构内设有内筒，内筒上方设有挡板，侧壁设有尾矿出料管，漏斗槽底部设有中矿出料管；
中矿出料管通过管路与循环泵的入口相连接，循环泵的出口通过管路与矿浆分配管相连接。
所述错流预矿化管和撞击流预矿化管均为文丘里管结构形式；错流预矿化管和撞击流预矿化管间隔 设置；相邻错流预矿化管切向接入圆筒的方向相反；中矿尾矿分离器筒壁高出浮选槽体底板0.5-1.0m。
一种强制循环快速浮选分离方法，包括如下步骤：
a.首先关闭浮选槽体底部的尾矿出料管，然后经调浆后的矿浆通过进料器进口从给料器给入浮选槽体内，矿浆经过分散板分散后通过筛板5被进一步分散进入浮选槽体3底部并通过中矿出料管排入循环泵；
b.循环泵将通过筛板分散后的矿浆给入矿浆分配并通过矿浆分配上的撞击流预矿化管和错流预矿化管给入圆筒，并在给入圆筒的同时通过矿浆喷射管将矿浆混入充足的空气从而在矿浆中形成气泡，调浆后的矿浆矿在圆筒内形成高速撞击流和强制剪切错流，实现圆筒内矿浆中颗粒与药剂的充分混合和分散，有效强化药剂在颗粒表面的吸附；所述压缩空气经微泡发生器分别送入错流预矿化管和多个撞击流预矿化管，在湍流矿化反应器筒体内实现颗粒与微泡的强制混合矿化，为后续二次分选提供保障；
c.圆筒底部的矿浆通过矿浆喷射管进入浮选槽体中的环流浮选器中，并通过环流浮选器的多个环流喷射腔的喷口喷射出来形成环流，在环流的作用下，矿浆中的易浮颗粒快速升浮，经由泡沫槽上的精矿出料管的精矿出料管出口排出；
d.矿浆中的中等可浮颗粒在环流浮选器所产生的环流作用下与气泡发生碰撞和粘附，被粘附的中等可浮颗粒与易浮颗粒一起上浮至泡沫槽，由泡沫槽上的精矿出料管的精矿出料管出口排出，未被粘附的颗粒再次通过中矿出料管经循环泵给入湍流矿化反应器，经高效矿化后由喷射管给入浮选槽体底部的环流浮选器实现循环分选；
e.环流浮选器中未被气泡粘附的难浮颗粒进入到中矿尾矿分离器内，当浮选槽体中的矿浆液位达到设定值时，设定值为距离泡沫溢流面0.5-1.5m区间，浮选槽体底部尾矿出料管打开，一部分经中矿尾矿分离器侧壁尾矿出料管的尾矿出料管出口排出，另一部分再次通过中矿出料管经循环泵给入湍流矿化反应器，经高效矿化后由喷射管给入浮选槽体底部的环流浮选器实现循环分选。
有益效果：本发明集高速撞击流、错流、环流于一体，湍流矿化反应器产生的撞击流和错流提高了难浮颗粒的矿化效果；环流浮选器产生的环流，起到了二次分选、强化粗颗粒悬浮和提高浮选气泡载荷的协同作用。
附图说明
图1是本发明的复合流强化浮选分离装置结构示意图。
图2是本发明的环流浮选器结构示意图。
图中：1－循环泵，2－泡沫槽，3－浮选槽体，4－挡板，5－筛板，6－中矿出料管，7－矿浆分配管，8－矿浆喷射管，9－撞击流预矿化管，10－错流预矿化管，11－矿浆喷射管，12－给料器，13－分散板，14－精矿出料管，15－环流浮选器，16－内筒，17－尾矿出料管，18－底板，19－环板，20－环流喷射腔，A－进料器进口，B－尾矿出料管出口，C－精矿出料管出口。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细描述：
如图1所示，本发明的一种复合流强化浮选分离装置，它包括循环泵1、湍流矿化反应器、浮选槽体3、环流浮选器15和中矿尾矿分离器；
其中所述的湍流矿化反应器为密闭结构的圆筒，圆筒周围并排设置矿浆分配管7，圆筒与矿浆分配管之间交替设有撞击流预矿化管9和错流预矿化管10，错流预矿化管10与圆筒沿切向连接，撞击流预矿化管9与圆筒沿径向连接，错流预矿化管10和撞击流预矿化管9上均设置有微泡发生器8；所述错流预矿化管10和撞击流预矿化管9均为文丘里管结构形式；错流预矿化管10和撞击流预矿化管9间隔设置；相邻错流预矿化管10切向接入圆筒的方向相反；中矿尾矿分离器筒壁高出浮选槽体3底板0.5-1.0m；
所述的浮选槽体3为圆筒形结构，浮选槽体3上方设有泡沫槽2，泡沫槽2的最下方设有精矿出料管14，浮选槽体3的上方设有给料器12，给料器12下方设有分散板13，浮选槽体3内中部设有筛板5，浮选槽体3底部设有底板18，底板18圆心处设有中矿尾矿分离器，中矿尾矿分离器与浮选槽体3侧壁之间设有环流浮选器15，如图2所示，所述环流浮选器15包括与中矿尾矿分离器同心圆结构的环板19，环板19内侧上设有多个环流喷射腔20，环流喷射腔20上设有喷口，喷口方向沿着环板内壁，环流喷射腔20上部设有进浆口，进浆口与湍流矿化反应器的圆筒形结构底部之间设有矿浆喷射管11；
所述中矿尾矿分离器包括为柱状结构，底部设有漏斗槽，柱状结构内设有内筒16，内筒16上方设有挡板4，侧壁设有尾矿出料管17，漏斗槽底部设有中矿出料管6；
中矿出料管6通过管路与循环泵1的入口相连接，循环泵1的出口通过管路与矿浆分配管7相连接。
一种强制循环快速浮选分离方法，包括如下步骤：
a.首先关闭浮选槽体3底部的尾矿出料管17，然后经调浆后的矿浆通过进料器进口A从给料器12给入浮选槽体3内，矿浆经过分散板13分散后通过筛板5被进一步分散进入浮选槽体3底部并通过中矿出料管6排入循环泵1；
b.循环泵1将通过筛板5分散后的矿浆给入矿浆分配7并通过矿浆分配7上的撞击流预矿化管9和错流预矿化管10给入圆筒，并在给入圆筒的同时通过矿浆喷射管8将矿浆混入充足的空气从而在矿浆中形成气泡，调浆后的矿浆矿在圆筒内形成高速撞击流和强制剪切错流，实现圆筒内矿浆中颗粒与药剂的充分混合和分散，有效强化药剂在颗粒表面的吸附；所述压缩空气经微泡发生器8分别送入错流预矿化管10和多个撞击流预矿化管9，在湍流矿化反应器筒体内实现颗粒与微泡的强制混合矿化，为后续二次分选提供保障；
c.圆筒底部的矿浆通过矿浆喷射管11进入浮选槽体3中的环流浮选器15中，并通过环流浮选器15的多个环流喷射腔20的喷口喷射出来形成环流，在环流的作用下，矿浆中的易浮颗粒快速升浮，经由泡沫槽上2的精矿出料管14的精矿出料管出口C排出；
d.矿浆中的中等可浮颗粒在环流浮选器15所产生的环流作用下与气泡发生碰撞和粘附，被粘附的中等可浮颗粒与易浮颗粒一起上浮至泡沫槽2，由泡沫槽上的精矿出料管14的精矿出料管出口C排出，未被粘附的颗粒再次通过中矿出料管6经循环泵1给入湍流矿化反应器，经高效矿化后由喷射管11给入浮选槽体3底部的环流浮选器15实现循环分选；
e.环流浮选器15中未被气泡粘附的难浮颗粒进入到中矿尾矿分离器内，当浮选槽体3中的矿浆液位达到设定值时，设定值为距离泡沫溢流面0.5-1.5m区间，浮选槽体3底部尾矿出料管17打开，一部分经中矿尾矿分离器侧壁尾矿出料管17的尾矿出料管出口B排出，另一部分再次通过中矿出料管6经循环泵1给入湍流矿化反应器，经高效矿化后由喷射管11给入浮选槽体3底部的环流浮选器15实现循环分选。

Claims (5)

  1. 一种复合流强化浮选分离装置，其特征在于：它包括循环泵(1)、湍流矿化反应器、浮选槽体(3)、环流浮选器(15)和中矿尾矿分离器；
    其中所述的湍流矿化反应器为密闭结构的圆筒，圆筒周围并排设置矿浆分配管(7)，圆筒与矿浆分配管之间交替设有撞击流预矿化管(9)和错流预矿化管(10)，错流预矿化管(10)与圆筒沿切向连接，撞击流预矿化管(9)与圆筒沿径向连接，错流预矿化管(10)和撞击流预矿化管(9)上均设置有微泡发生器(8)；
    所述的浮选槽体(3)为圆筒形结构，浮选槽体(3)上方设有泡沫槽(2)，泡沫槽(2)的最下方设有精矿出料管(14)，浮选槽体(3)的上方设有给料器(12)，给料器(12)下方设有分散板(13)，浮选槽体(3)内中部设有筛板(5)，浮选槽体(3)底部设有底板(18)，底板(18)圆心处设有中矿尾矿分离器，中矿尾矿分离器与浮选槽体(3)侧壁之间设有环流浮选器(15)，所述环流浮选器(15)包括与中矿尾矿分离器同心圆结构的环板(19)，环板(19)内侧上设有多个环流喷射腔(20)，环流喷射腔(20)上设有喷口，喷口方向沿着环板内壁，环流喷射腔(20)上部设有进浆口，进浆口与湍流矿化反应器的圆筒形结构底部之间设有矿浆喷射管(11)；
    所述中矿尾矿分离器包括为柱状结构，底部设有漏斗槽，柱状结构内设有内筒(16)，内筒(16)上方设有挡板(4)，侧壁设有尾矿出料管(17)，漏斗槽底部设有中矿出料管(6)；
    中矿出料管(6)通过管路与循环泵(1)的入口相连接，循环泵(1)的出口通过管路与矿浆分配管(7)相连接。
  2. 根据权利要求1所述的强制循环快速浮选分离装置，其特征在于：所述错流预矿化管(10)和撞击流预矿化管(9)均为文丘里管结构形式；错流预矿化管(10)和撞击流预矿化管(9)间隔设置；相邻错流预矿化管(10)切向接入圆筒的方向相反；中矿尾矿分离器筒壁高出浮选槽体(3)底板0.5-1.0m。
  3. 一种使用权利要求1所述强制循环快速浮选分离装置的分离方法，其特征在于包括如下步骤：
    a.首先关闭浮选槽体(3)底部的尾矿出料管(17)，然后经调浆后的矿浆通过进料器进口(A)从给料器(12)给入浮选槽体(3)内，矿浆经过分散板(13)分散后通过筛板(5)被进一步分散进入浮选槽体(3)底部并通过中矿出料管(6)排入循环泵(1)；
    b.循环泵(1)将通过筛板(5)分散后的矿浆给入矿浆分配(7)并通过矿浆分配(7)上的撞击流预矿化管(9)和错流预矿化管(10)给入圆筒，并在给入圆筒的同时通过矿浆喷射管(8)将矿浆混入充足的空气从而在矿浆中形成气泡，调浆后的矿浆矿在圆筒内形成高速撞击流和强制剪切错流，实现圆筒内矿浆中颗粒与药剂的充分混合和分散，有效强化药剂在颗粒表面的吸附；
    c.圆筒底部的矿浆通过矿浆喷射管(11)进入浮选槽体(3)中的环流浮选器(15)中，并通过环流浮选器(15)的多个环流喷射腔(20)的喷口喷射出来形成环流，在环流的作用下，矿浆中的易浮颗粒快速升浮，经由泡沫槽上(2)的精矿出料管(14)的精矿出料管出口(C)排出；
    d.矿浆中的中等可浮颗粒在环流浮选器(15)所产生的环流作用下与气泡发生碰撞和粘附，被粘附的中等可浮颗粒与易浮颗粒一起上浮至泡沫槽(2)，由泡沫槽上的精矿出料管(14)的精矿出料管出口(C)排出，未被粘附的颗粒再次通过中矿出料管(6)经循环泵(1)给入湍流矿化反应器，经高效矿化后由喷射管(11)给入浮选槽体(3)底部的环流浮选器(15)实现循环分选；
    e.环流浮选器(15)中未被气泡粘附的难浮颗粒进入到中矿尾矿分离器内，当浮选槽体(3)中的矿浆液位达到设定值时，浮选槽体(3)底部尾矿出料管(17)打开，一部分经中矿尾矿分离器侧壁尾矿出料管(17)的尾矿出料管出口(B)排出，另一部分再次通过中矿出料管(6)经循环泵(1)给入湍流矿化反应器，经高效矿化后由喷射管(11)给入浮选槽体(3)底部的环流浮选器(15)实现循环分选。
  4. 根据权利要要求3所述的分离方法，其特征在于：所述压缩空气经微泡发生器(8)分别送入错流预矿化管(10)和多个撞击流预矿化管(9)，在湍流矿化反应器筒体内实现颗粒与微泡的强制混合矿化，为后续二次分选提供保障。
  5. 根据权利要要求3所述的分离方法，其特征在于：所述浮选槽体(3)中的矿浆液位设定值为距离泡沫溢流面0.5-1.5m区间。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115970873A (zh) * 2023-01-19 2023-04-18 中国神华煤制油化工有限公司 分选煤气化渣中残炭的装置和方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109939837B (zh) * 2019-04-29 2020-08-25 中国矿业大学 一种复合流强化浮选分离装置及方法
CN112474068B (zh) * 2020-10-27 2022-03-01 中国矿业大学 一种微细粒矿物分选用涡流浮选装置
CN117065940A (zh) * 2023-08-28 2023-11-17 湖南中工矿业工程技术有限公司 一种浮选柱
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CN119702261B (zh) * 2025-01-20 2026-03-13 太原理工大学 一种煤气化渣碳-灰浮选分离装置及方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162371C1 (ru) * 2000-06-22 2001-01-27 Общество с ограниченной ответственностью "Изготовление, внедрение, сервис" Флотационная машина
CN203664023U (zh) * 2014-01-17 2014-06-25 湖南中工矿业工程技术有限公司 一种射流浮选柱
CN204122256U (zh) * 2014-10-09 2015-01-28 陕西延长石油集团氟硅化工有限公司 一种萤石矿分选装置
CN105363380A (zh) * 2015-10-27 2016-03-02 中国矿业大学 一种基于射流混合的外循环式矿浆预处理装置及方法
CN108246515A (zh) * 2018-03-28 2018-07-06 中国矿业大学 一种具有内部循环功能的调浆浮选一体化系统及调浆浮选方法
CN108273668A (zh) * 2018-03-28 2018-07-13 中国矿业大学 一种基于强湍流混合矿化的快速浮选系统及浮选方法
CN109603601A (zh) * 2019-01-14 2019-04-12 青岛科技大学 一种入口管径尺寸可调撞击流混合器
CN109939837A (zh) * 2019-04-29 2019-06-28 中国矿业大学 一种复合流强化浮选分离装置及方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210146239U (zh) * 2019-04-29 2020-03-17 中国矿业大学 一种复合流强化浮选分离装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162371C1 (ru) * 2000-06-22 2001-01-27 Общество с ограниченной ответственностью "Изготовление, внедрение, сервис" Флотационная машина
CN203664023U (zh) * 2014-01-17 2014-06-25 湖南中工矿业工程技术有限公司 一种射流浮选柱
CN204122256U (zh) * 2014-10-09 2015-01-28 陕西延长石油集团氟硅化工有限公司 一种萤石矿分选装置
CN105363380A (zh) * 2015-10-27 2016-03-02 中国矿业大学 一种基于射流混合的外循环式矿浆预处理装置及方法
CN108246515A (zh) * 2018-03-28 2018-07-06 中国矿业大学 一种具有内部循环功能的调浆浮选一体化系统及调浆浮选方法
CN108273668A (zh) * 2018-03-28 2018-07-13 中国矿业大学 一种基于强湍流混合矿化的快速浮选系统及浮选方法
CN109603601A (zh) * 2019-01-14 2019-04-12 青岛科技大学 一种入口管径尺寸可调撞击流混合器
CN109939837A (zh) * 2019-04-29 2019-06-28 中国矿业大学 一种复合流强化浮选分离装置及方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115970873A (zh) * 2023-01-19 2023-04-18 中国神华煤制油化工有限公司 分选煤气化渣中残炭的装置和方法

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