WO2020220582A1 - Forced turbulence mineralization reaction device and method - Google Patents

Forced turbulence mineralization reaction device and method Download PDF

Info

Publication number
WO2020220582A1
WO2020220582A1 PCT/CN2019/109880 CN2019109880W WO2020220582A1 WO 2020220582 A1 WO2020220582 A1 WO 2020220582A1 CN 2019109880 W CN2019109880 W CN 2019109880W WO 2020220582 A1 WO2020220582 A1 WO 2020220582A1
Authority
WO
WIPO (PCT)
Prior art keywords
premineralization
cylinder
mineralization
slurry
flow
Prior art date
Application number
PCT/CN2019/109880
Other languages
French (fr)
Chinese (zh)
Inventor
张海军
刘炯天
闫小康
王利军
刘清侠
曹亦俊
李丹龙
李鑫
Original Assignee
中国矿业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国矿业大学 filed Critical 中国矿业大学
Publication of WO2020220582A1 publication Critical patent/WO2020220582A1/en

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to a forced turbulent mineralization reaction device and method, and is particularly suitable for a forced turbulent mineralization reaction device and method used in the field of coal mine washing.
  • the mineralization of bubbles in the flotation slurry refers to a process in which the floated target minerals selectively adhere to the bubbles to form a mineral particle-bubble aggregate.
  • the flotation mineralization methods are typically represented by countercurrent mineralization, cyclone mineralization and pipe flow mineralization, in which the role of fluid always runs through them.
  • the effective collision of particles and bubbles is a prerequisite for efficient mineralization, and the finer the particle size, the more difficult it is to break through the streamline, which will reduce the probability of particle and bubble collision. Therefore, for fine particles, it is necessary to further strengthen the role of fluid, and it is particularly necessary to construct a more efficient forced turbulent mineralization reaction process to increase the collision probability of fine particles and bubbles.
  • the purpose of the present invention is to provide a simple structure, convenient use, good reaction effect, and effectively strengthen the collision and adhesion probability of fine particles and bubbles in the mineralization cylinder, thereby improving the efficiency of flotation mineralization reaction and strengthening the capacity Device and method for flotation mineralization reaction process.
  • a forced turbulent flow mineralization reaction device of the present invention characterized in that it includes a mineralization cylinder and a composite flow pre-mineralization generating system , Microbubble generation system and slurry distribution system,
  • the said mineralization cylinder includes a vertical cylinder, the upper part of the cylinder is provided with a cone, the top of the cone is vertically provided with a slurry discharge pipe, a discharge opening baffle is arranged between the cone and the slurry discharge pipe, and the inner wall of the cylinder A turbulence generator with multiple tapered structures is provided;
  • the composite flow pre-mineralization generation system includes multiple sets of slurry distribution pipes vertically arranged around the cylinder to match the height of the cylinder. Between the slurry distribution pipe and the cylinder, multiple shear flow pre-mineralization pipes and multiple One impinging stream premineralization tube, in which the shearing stream premineralization tube is connected to the cylinder along the tangential direction, and the impinging stream premineralization tube is connected to the cylinder along the radial direction;
  • the slurry distribution system includes a slurry distribution ring, the slurry distribution ring is arranged below the slurry distribution pipe, the top of the slurry distribution pipe is sealed, the bottom is connected to the slurry distribution ring, and the slurry distribution ring is connected with a feed pump through a pipeline.
  • the number of slurry distribution pipes is an even number.
  • the slurry distribution pipes are arranged around the cylinder and are evenly distributed on the outside of the cylinder; the shear flow premineralization pipe and the impinging flow premineralization pipe are both Venturi tubes; the shear flow premineralization pipe
  • the mineralization tube and the impinging stream pre-mineralization tube are arranged at intervals; the adjacent shear flow pre-mineralization tubes are connected in opposite directions to the cylinder; the venturi tube is equipped with a microbubble generator, which is set in Behind the nozzle outlet of the shear flow premineralization tube and the impinging flow premineralization tube.
  • the turbulence generator is alternately arranged between the shear flow premineralization tube and the impinging flow premineralization tube, and each layer is evenly distributed with 4, and is a separate wedge structure.
  • the turbulence generator is provided with triangular edges and sharp corners. Pointing to the center of the cylinder, used to further generate local forced vortex, strengthen the shearing effect of the fluid on the particle surface, and promote the adsorption of the drug on the particle surface.
  • a forced turbulent mineralization reaction method the steps are as follows:
  • the microbubbly slurry is pre-mineralized by the shear flow premineralization tube and the impinging flow premineralization tube under pressure to form a three-phase slurry, and the three-phase slurry of the shear flow premineralization tube is fed in the tangential direction Into the mineralization cylinder, the three-phase slurry in the impinging stream premineralization tube is fed into the mineralization cylinder along the radial direction, and the fluid strengthening effect of the turbulence generator in the cylinder is used to form a high-speed impinging flow and forced shear flow.
  • the main forced turbulent environment strengthens the collision and adhesion probability of fine particles and bubbles in the slurry in the mineralization cylinder, improves the efficiency and capacity of the mineralization reaction, and thereby improves the recovery ability of fine particles;
  • the slurry After the mineralization reaction is completed in the mineralization cylinder, the slurry finally enters the slurry discharge pipe from the side of the discharge port baffle at the top of the cone, and is finally discharged from the slurry discharge pipe outlet to complete the mineralization reaction.
  • the forced turbulence mineralization reaction device has a simple structure, no power mechanism in the mineralization cylinder, and the three-phase slurry formed after the ore pulp and microbubbles are pre-mineralized by the shear flow premineralization tube and the impinging flow premineralization tube Feed into the mineralization cylinder in the tangential and radial directions, and use the fluid enhancement effect of the turbulence generator in the cylinder to form a forced turbulent environment dominated by high-speed impinging flow and forced shear flow, and strengthen the fine particles in the mineralization cylinder. The probability of collision and adhesion with bubbles, thereby improving the efficiency and capacity of the mineralization reaction.
  • the present invention proposes a method for strengthening the flotation mineralization reaction process of fine mineral particles (or coal particles) by using a composite flow field, that is, through a shear flow premineralization tube and an impinging stream
  • a composite flow field that is, through a shear flow premineralization tube and an impinging stream
  • pre-mineralization combined with the synergistic strengthening effect of shear flow, impinging flow and turbulence generator, forms a forced turbulence environment dominated by high-speed impinging flow and forced shear flow in a mineralization cylinder to strengthen the mineralization cylinder
  • the collision and adhesion probability of fine particles and bubbles in the body thereby improving the efficiency and capacity of flotation mineralization reaction, to meet the needs of subsequent flotation separation of fine mineral particles (or coal particles).
  • Fig. 1 is a schematic diagram of the structure of the forced turbulent mineralization reaction device of the present invention.
  • 1 discharge baffle
  • 2 spinar flow premineralization tube
  • 3 impinging flow premineralization tube
  • 4 turbulence generator
  • 5 pulse distribution ring
  • 6 pulse discharge pipe
  • 7 -Cone Pulp discharge pipe
  • 8-Cylinder 9-Microbubble generator
  • 10-Slurry distribution pipe 11-Feed pump
  • A-Feed pump inlet B-Slurry discharge pipe outlet.
  • a forced turbulent mineralization reaction device of the present invention includes a mineralization cylinder, a composite flow pre-mineralization generation system, a microbubble generation system, and a slurry distribution system.
  • the said mineralization cylinder includes a vertical cylinder 8, a cone 7 is arranged above the cylinder 8, a slurry discharge pipe 6 is vertically arranged on the top of the cone 7, and a discharge pipe 6 is arranged between the cone 7 and the slurry discharge pipe 6.
  • the mouth baffle 1, the inner wall of the cylinder 8 is provided with a plurality of turbulence generators 4 with a tapered structure; the turbulence generators 4 are alternately arranged between the shear flow premineralization tube 2 and the impinging flow premineralization tube 3, Each layer is evenly distributed with 4 in a separate wedge-shaped structure.
  • the turbulence generator 4 is provided with triangular edges, and the sharp corners point to the center of the cylinder 8 to further generate local forced vortices and strengthen the shearing effect of the fluid on the particle surface. Promote the adsorption of the agent on the particle surface;
  • the composite flow premineralization generation system includes multiple sets of slurry distribution pipes 10 vertically arranged around the cylinder 8 to match the height of the cylinder 8. Between the slurry distribution pipe 10 and the cylinder 8. A mineralization tube 2 and a plurality of impinging stream premineralization tubes 3, wherein the shear flow premineralization tube 2 and the cylinder 8 are connected in a tangential direction, and the impinging stream premineralization tube 3 and the cylinder 8 are connected in a radial direction; The number of distribution pipes 10 is an even number.
  • the slurry distribution pipes 10 are arranged oppositely around the cylinder 8 and are evenly distributed on the outside of the cylinder 8.
  • the shear flow premineralization pipe 2 and the impinging flow premineralization pipe 3 are both Venturi tubes ;
  • the shear flow premineralization tube 2 and the impinging flow premineralization tube 3 are arranged at intervals; the adjacent shear flow premineralization tubes 2 are connected to the cylinder 8 in opposite directions; the venturi tube is equipped with microbubble generation
  • the device 9 and the microbubble generator 9 are respectively arranged behind the nozzle outlets of the shear flow premineralization tube 2 and the impinging flow premineralization tube 3;
  • the slurry distribution system includes a slurry distribution ring 5, which is arranged below the slurry distribution pipe 10, the top of the slurry distribution pipe 10 is sealed, and the bottom is connected to the slurry distribution ring 5, and the slurry distribution ring 5 is connected to the slurry distribution ring 5 through pipelines. ⁇ 11 ⁇ Material pump 11.
  • a forced turbulent mineralization reaction method the steps are as follows:
  • the microbubbly pulp is pre-mineralized by the shear flow premineralization tube 2 and the impinging flow premineralization tube 3 under pressure to generate three-phase slurry, and the three-phase slurry of the shear flow premineralization tube 2
  • the three-phase slurry in the impinging stream premineralization tube 3 is fed into the mineralization cylinder tangentially, and the fluid strengthening effect of the turbulence generator 4 in the cylinder is used to form a high-speed impinging stream and
  • the forced turbulent environment dominated by forced shear flow strengthens the collision and adhesion probability of fine particles and bubbles in the slurry in the mineralization cylinder, improves the efficiency and capacity of the mineralization reaction, and thereby improves the recovery ability of fine particles;
  • the slurry After completing the mineralization reaction in the mineralization cylinder, the slurry finally enters the slurry discharge pipe 6 from the side of the discharge opening baffle 1 at the top of the cone 7 and is finally discharged from the slurry discharge pipe outlet B to complete the mineralization reaction.

Abstract

Disclosed are a forced turbulence mineralization reaction device and method, which are applicable in the field of dressing of coal mines by washing. The device comprises a mineralization cylinder body, a composite flow generation system, a micro-bubble generation system and an ore pulp dispensing system, wherein ore pulp is fed into the composite flow generation system via a feed pump (11); compressed air is fed into shear flow pre-mineralization pipes (2) and impinging flow pre-mineralization pipes (3) via micro-bubble generators (9); three-phase ore pulp, which is formed after the ore pulp and micro-bubbles are pre-mineralized by the shear flow pre-mineralization pipes (2) and the impinging flow pre-mineralization pipes (3), is respectively fed into a cylinder (8) tangentially and radially; and the fluid enhancement function of turbulence generators (4) in the cylinder body is used to form a forced turbulence environment mainly including high-speed impinging flow and forced shear flow to enhance the probability of collision and adhesion between ultra-fine particles and bubbles in the mineralization cylinder body, thereby improving the flotation mineralization reaction efficiency and capability.

Description

一种强制湍流矿化反应装置及方法Forced turbulent mineralization reaction device and method 技术领域Technical field
本发明涉及一种强制湍流矿化反应装置及方法，尤其适用于煤矿洗选领域使用的强制湍流矿化反应装置及方法。The invention relates to a forced turbulent mineralization reaction device and method, and is particularly suitable for a forced turbulent mineralization reaction device and method used in the field of coal mine washing.
背景技术Background technique
浮选矿浆中气泡的矿化是指被浮的目的矿物有选择地向气泡粘附，形成矿粒-气泡集合体的一种过程。目前，浮选矿化方式以逆流矿化、旋流矿化和管流矿化为典型代表，其中流体的作用始终贯穿其中。对于浮选矿化过程而言，颗粒与气泡的有效碰撞是高效矿化的前提条件，而颗粒粒度越细越难以突破流线，进而导致颗粒与气泡碰撞的概率降低。因此，对于微细颗粒而言，需要进一步强化流体的作用，特别需要构建一个更高效的强制湍流矿化反应过程，以提高微细颗粒与气泡的碰撞概率。The mineralization of bubbles in the flotation slurry refers to a process in which the floated target minerals selectively adhere to the bubbles to form a mineral particle-bubble aggregate. At present, the flotation mineralization methods are typically represented by countercurrent mineralization, cyclone mineralization and pipe flow mineralization, in which the role of fluid always runs through them. For the flotation mineralization process, the effective collision of particles and bubbles is a prerequisite for efficient mineralization, and the finer the particle size, the more difficult it is to break through the streamline, which will reduce the probability of particle and bubble collision. Therefore, for fine particles, it is necessary to further strengthen the role of fluid, and it is particularly necessary to construct a more efficient forced turbulent mineralization reaction process to increase the collision probability of fine particles and bubbles.
发明内容Summary of the invention
技术问题：本发明的目的在于提供一种结构简单，使用方便，反应效果好，有效强化矿化筒体内微细颗粒与气泡的碰撞与粘附概率，进而提高浮选矿化反应效率和能力的强化浮选矿化反应过程的装置及方法。Technical problem: The purpose of the present invention is to provide a simple structure, convenient use, good reaction effect, and effectively strengthen the collision and adhesion probability of fine particles and bubbles in the mineralization cylinder, thereby improving the efficiency of flotation mineralization reaction and strengthening the capacity Device and method for flotation mineralization reaction process.
技术方案：为实现上述技术目的，本发明的一种强制湍流矿化反应装置，1.一种强制湍流矿化反应装置，其特征在于：它包括矿化筒体、复合流预矿化发生系统、微泡发生系统和矿浆分配系统，Technical scheme: In order to achieve the above technical objectives, a forced turbulent flow mineralization reaction device of the present invention, 1. A forced turbulent flow mineralization reaction device, characterized in that it includes a mineralization cylinder and a composite flow pre-mineralization generating system , Microbubble generation system and slurry distribution system,
所述的矿化筒体包括垂直设置的圆筒，圆筒上方设有圆锥，圆锥顶部垂直设有矿浆出料管，圆锥与矿浆出料管之间设有出料口挡板，圆筒内壁设置有多个契形结构的湍流发生器；The said mineralization cylinder includes a vertical cylinder, the upper part of the cylinder is provided with a cone, the top of the cone is vertically provided with a slurry discharge pipe, a discharge opening baffle is arranged between the cone and the slurry discharge pipe, and the inner wall of the cylinder A turbulence generator with multiple tapered structures is provided;
所述复合流预矿化发生系统包括垂直设置在圆筒周围与圆筒高度匹配的多组矿浆分配管，矿浆分配管与圆筒之间检查设有多个剪切流预矿化管和多个撞击流预矿化管，其中剪切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；The composite flow pre-mineralization generation system includes multiple sets of slurry distribution pipes vertically arranged around the cylinder to match the height of the cylinder. Between the slurry distribution pipe and the cylinder, multiple shear flow pre-mineralization pipes and multiple One impinging stream premineralization tube, in which the shearing stream premineralization tube is connected to the cylinder along the tangential direction, and the impinging stream premineralization tube is connected to the cylinder along the radial direction;
所述矿浆分配系统包括矿浆分配环，矿浆分配环设置在矿浆分配管下方，矿浆分配管顶部密封、底部与矿浆分配环连接导通，矿浆分配环通过管路连接有给料泵。The slurry distribution system includes a slurry distribution ring, the slurry distribution ring is arranged below the slurry distribution pipe, the top of the slurry distribution pipe is sealed, the bottom is connected to the slurry distribution ring, and the slurry distribution ring is connected with a feed pump through a pipeline.
矿浆分配管的数量为双数，矿浆分配管围绕圆筒相对设置，均布于圆筒外侧；剪切流预矿化管和撞击流预矿化管均为文丘里管结构；剪切流预矿化管和撞击流预矿化管间隔设置；相邻剪切流预矿化管切向接入圆筒的方向相反；文丘里管上设有微泡发生器，微泡发生器分别设置在剪切流预矿化管和撞击流预矿化管喷嘴出口的后方。The number of slurry distribution pipes is an even number. The slurry distribution pipes are arranged around the cylinder and are evenly distributed on the outside of the cylinder; the shear flow premineralization pipe and the impinging flow premineralization pipe are both Venturi tubes; the shear flow premineralization pipe The mineralization tube and the impinging stream pre-mineralization tube are arranged at intervals; the adjacent shear flow pre-mineralization tubes are connected in opposite directions to the cylinder; the venturi tube is equipped with a microbubble generator, which is set in Behind the nozzle outlet of the shear flow premineralization tube and the impinging flow premineralization tube.
所述湍流发生器交替设置在剪切流预矿化管和撞击流预矿化管之间，每层均布4个，为单独的楔形结构，湍流发生器上设置有三角棱，棱尖角指向圆筒中心，用于进一步产生局部强制旋涡，强化流体对颗粒表面的剪切作用，促进药剂在颗粒表面的吸附。The turbulence generator is alternately arranged between the shear flow premineralization tube and the impinging flow premineralization tube, and each layer is evenly distributed with 4, and is a separate wedge structure. The turbulence generator is provided with triangular edges and sharp corners. Pointing to the center of the cylinder, used to further generate local forced vortex, strengthen the shearing effect of the fluid on the particle surface, and promote the adsorption of the drug on the particle surface.
一种强制湍流矿化反应方法，其步骤如下：A forced turbulent mineralization reaction method, the steps are as follows:
a.将调质后的矿浆经给料泵进口，通过给料泵加压后输入矿浆分配环，并通过矿浆分配环上设置的矿浆分配管分别进入剪切流预矿化管和撞击流预矿化管中；a. Pass the quenched and tempered slurry through the feed pump inlet, pressurized by the feed pump, and then enter the slurry distribution ring, and enter the shear flow premineralization pipe and impinging flow premineralization pipe through the slurry distribution pipe set on the slurry distribution ring. Mineralization pipe
b.向剪切流预矿化管和撞击流预矿化管上的泡沫发生器中注入压缩空气从而在剪切流预矿化管和撞击流预矿化管中的压力矿浆中产生微泡化；b. Inject compressed air into the foam generator on the shear flow premineralization tube and the impinging flow premineralization tube to generate microbubbles in the pressure slurry in the shear flow premineralization tube and the impinging flow premineralization tube Change
c.微泡化矿浆在压力的作用下经剪切流预矿化管和撞击流预矿化管预矿化后生成三相矿浆，剪切流预矿化管的三相矿浆沿切向给入矿化筒体，撞击流预矿化管中的三相矿浆沿径向给入矿化筒体，并利用筒体内湍流发生器的流体强化作用，形成以高速撞击流和强制剪切流为主的强制湍流环境，强化矿化筒体内矿浆中的微细颗粒与气泡的碰撞与粘附概率，提高矿化反应效率和能力，进而提高对微细颗粒的回收能力；c. The microbubbly slurry is pre-mineralized by the shear flow premineralization tube and the impinging flow premineralization tube under pressure to form a three-phase slurry, and the three-phase slurry of the shear flow premineralization tube is fed in the tangential direction Into the mineralization cylinder, the three-phase slurry in the impinging stream premineralization tube is fed into the mineralization cylinder along the radial direction, and the fluid strengthening effect of the turbulence generator in the cylinder is used to form a high-speed impinging flow and forced shear flow. The main forced turbulent environment strengthens the collision and adhesion probability of fine particles and bubbles in the slurry in the mineralization cylinder, improves the efficiency and capacity of the mineralization reaction, and thereby improves the recovery ability of fine particles;
d.在矿化筒体内完成矿化反应后的矿浆最终从圆锥顶部的出料口挡板侧边进入矿浆出料管，最终从矿浆出料管出口排出，完成矿化反应。d. After the mineralization reaction is completed in the mineralization cylinder, the slurry finally enters the slurry discharge pipe from the side of the discharge port baffle at the top of the cone, and is finally discharged from the slurry discharge pipe outlet to complete the mineralization reaction.
有益效果：该强制湍流矿化反应装置结构简单，矿化筒体内无动力机构，矿浆和微泡经剪切流预矿化管和撞击流预矿化管预矿化后，形成的三相矿浆分别沿切向和径向给入矿化筒体，并利用筒体内湍流发生器的流体强化作用，形成以高速撞击流和强制剪切流为主的强制湍流环境，强化矿化筒体内微细颗粒与气泡的碰撞与粘附概率，进而提高矿化反应效率和能力。Beneficial effects: the forced turbulence mineralization reaction device has a simple structure, no power mechanism in the mineralization cylinder, and the three-phase slurry formed after the ore pulp and microbubbles are pre-mineralized by the shear flow premineralization tube and the impinging flow premineralization tube Feed into the mineralization cylinder in the tangential and radial directions, and use the fluid enhancement effect of the turbulence generator in the cylinder to form a forced turbulent environment dominated by high-speed impinging flow and forced shear flow, and strengthen the fine particles in the mineralization cylinder. The probability of collision and adhesion with bubbles, thereby improving the efficiency and capacity of the mineralization reaction.
本发明在现有浮选矿化反应方式的基础上，提出采用复合流场强化微细矿物颗粒(或煤粒)浮选矿化反应过程的方法，即通过剪切流预矿化管和撞击流预矿化的实施，再结合剪切流、撞击流和湍流发生器的协同强化效应，在一个矿化筒体内形成以高速撞击流和强制剪切流为主的强制湍流环境，强化矿化筒体内微细颗粒与气泡的碰撞与粘附概率，进而提高浮选矿化反应效率和能力，以满足微细矿物颗粒(或煤粒)后续浮选分离的需求。On the basis of the existing flotation mineralization reaction method, the present invention proposes a method for strengthening the flotation mineralization reaction process of fine mineral particles (or coal particles) by using a composite flow field, that is, through a shear flow premineralization tube and an impinging stream The implementation of pre-mineralization, combined with the synergistic strengthening effect of shear flow, impinging flow and turbulence generator, forms a forced turbulence environment dominated by high-speed impinging flow and forced shear flow in a mineralization cylinder to strengthen the mineralization cylinder The collision and adhesion probability of fine particles and bubbles in the body, thereby improving the efficiency and capacity of flotation mineralization reaction, to meet the needs of subsequent flotation separation of fine mineral particles (or coal particles).
附图说明Description of the drawings
图1是本发明的强制湍流矿化反应装置结构示意图。Fig. 1 is a schematic diagram of the structure of the forced turbulent mineralization reaction device of the present invention.
图中：1－出料口挡板，2－剪切流预矿化管，3－撞击流预矿化管，4－湍流发生器，5－矿浆分配环，6－矿浆出料管，7－圆锥，8－圆筒，9－微泡发生器，10－矿浆分配管，11－给料泵，A－给料泵进口，B－矿浆出料管出口。In the picture: 1—discharge baffle, 2—shear flow premineralization tube, 3—impinging flow premineralization tube, 4—turbulence generator, 5—pulp distribution ring, 6—pulp discharge pipe, 7 -Cone, 8-Cylinder, 9-Microbubble generator, 10-Slurry distribution pipe, 11-Feed pump, A-Feed pump inlet, B-Slurry discharge pipe outlet.
具体实施方式Detailed ways
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：The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings:
如图1所示，本发明的一种强制湍流矿化反应装置，包括矿化筒体、复合流预矿化发生系统、微泡发生系统和矿浆分配系统，As shown in Figure 1, a forced turbulent mineralization reaction device of the present invention includes a mineralization cylinder, a composite flow pre-mineralization generation system, a microbubble generation system, and a slurry distribution system.
所述的矿化筒体包括垂直设置的圆筒8，圆筒8上方设有圆锥7，圆锥7顶部垂直设有矿浆出料管6，圆锥7与矿浆出料管6之间设有出料口挡板1，圆筒8内壁设置有多个契形结构的湍流发生器4；所述湍 流发生器4交替设置在剪切流预矿化管2和撞击流预矿化管3之间，每层均布4个，为单独的楔形结构，湍流发生器4上设置有三角棱，棱尖角指向圆筒8中心，用于进一步产生局部强制旋涡，强化流体对颗粒表面的剪切作用，促进药剂在颗粒表面的吸附；The said mineralization cylinder includes a vertical cylinder 8, a cone 7 is arranged above the cylinder 8, a slurry discharge pipe 6 is vertically arranged on the top of the cone 7, and a discharge pipe 6 is arranged between the cone 7 and the slurry discharge pipe 6. The mouth baffle 1, the inner wall of the cylinder 8 is provided with a plurality of turbulence generators 4 with a tapered structure; the turbulence generators 4 are alternately arranged between the shear flow premineralization tube 2 and the impinging flow premineralization tube 3, Each layer is evenly distributed with 4 in a separate wedge-shaped structure. The turbulence generator 4 is provided with triangular edges, and the sharp corners point to the center of the cylinder 8 to further generate local forced vortices and strengthen the shearing effect of the fluid on the particle surface. Promote the adsorption of the agent on the particle surface;
所述复合流预矿化发生系统包括垂直设置在圆筒8周围与圆筒8高度匹配的多组矿浆分配管10，矿浆分配管10与圆筒8之间检查设有多个剪切流预矿化管2和多个撞击流预矿化管3，其中剪切流预矿化管2与圆筒8沿切向连接，撞击流预矿化管3与圆筒8沿径向连接；矿浆分配管10的数量为双数，矿浆分配管10围绕圆筒8相对设置，均布于圆筒8外侧；剪切流预矿化管2和撞击流预矿化管3均为文丘里管结构；剪切流预矿化管2和撞击流预矿化管3间隔设置；相邻剪切流预矿化管2切向接入圆筒8的方向相反；文丘里管上设有微泡发生器9，微泡发生器9分别设置在剪切流预矿化管2和撞击流预矿化管3喷嘴出口的后方；The composite flow premineralization generation system includes multiple sets of slurry distribution pipes 10 vertically arranged around the cylinder 8 to match the height of the cylinder 8. Between the slurry distribution pipe 10 and the cylinder 8. A mineralization tube 2 and a plurality of impinging stream premineralization tubes 3, wherein the shear flow premineralization tube 2 and the cylinder 8 are connected in a tangential direction, and the impinging stream premineralization tube 3 and the cylinder 8 are connected in a radial direction; The number of distribution pipes 10 is an even number. The slurry distribution pipes 10 are arranged oppositely around the cylinder 8 and are evenly distributed on the outside of the cylinder 8. The shear flow premineralization pipe 2 and the impinging flow premineralization pipe 3 are both Venturi tubes ; The shear flow premineralization tube 2 and the impinging flow premineralization tube 3 are arranged at intervals; the adjacent shear flow premineralization tubes 2 are connected to the cylinder 8 in opposite directions; the venturi tube is equipped with microbubble generation The device 9 and the microbubble generator 9 are respectively arranged behind the nozzle outlets of the shear flow premineralization tube 2 and the impinging flow premineralization tube 3;
所述矿浆分配系统包括矿浆分配环5，矿浆分配环5设置在矿浆分配管10下方，矿浆分配管10顶部密封、底部与矿浆分配环5连接导通，矿浆分配环5通过管路连接有给料泵11。The slurry distribution system includes a slurry distribution ring 5, which is arranged below the slurry distribution pipe 10, the top of the slurry distribution pipe 10 is sealed, and the bottom is connected to the slurry distribution ring 5, and the slurry distribution ring 5 is connected to the slurry distribution ring 5 through pipelines.料泵11。 Material pump 11.
一种强制湍流矿化反应方法，其步骤如下：A forced turbulent mineralization reaction method, the steps are as follows:
a.将调质后的矿浆经给料泵11进口A，通过给料泵11加压后输入矿浆分配环5，并通过矿浆分配环5上设置的矿浆分配管10分别进入剪切流预矿化管2和撞击流预矿化管3中；a. Pass the quenched and tempered pulp through the inlet A of the feed pump 11, pressurized by the feed pump 11, and then enter the pulp distribution ring 5, and enter the shear flow pre-mining through the pulp distribution pipe 10 set on the pulp distribution ring 5. Chemical tube 2 and impinging stream premineralization tube 3;
b.向剪切流预矿化管2和撞击流预矿化管3上的泡沫发生器9中注入压缩空气从而在剪切流预矿化管2和撞击流预矿化管3中的压力矿浆中产生微泡化；b. Inject compressed air into the foam generator 9 on the shear flow premineralization tube 2 and the impinging flow premineralization tube 3, so that the pressure in the shear flow premineralization tube 2 and the impinging flow premineralization tube 3 Microbubbles in the slurry;
c.微泡化矿浆在压力的作用下经剪切流预矿化管2和撞击流预矿化管3预矿化后生成三相矿浆，剪切流预矿化管2的三相矿浆沿切向给入矿化筒体，撞击流预矿化管3中的三相矿浆沿径向给入矿化筒体，并利用筒体内湍流发生器4的流体强化作用，形成以高速撞击流和强制剪切流为主的强制湍流环境，强化矿化筒体内矿浆中的微细颗粒与气泡的碰撞与粘附概率，提高矿化反应效率和能力，进而提高对微细颗粒的回收能力；c. The microbubbly pulp is pre-mineralized by the shear flow premineralization tube 2 and the impinging flow premineralization tube 3 under pressure to generate three-phase slurry, and the three-phase slurry of the shear flow premineralization tube 2 The three-phase slurry in the impinging stream premineralization tube 3 is fed into the mineralization cylinder tangentially, and the fluid strengthening effect of the turbulence generator 4 in the cylinder is used to form a high-speed impinging stream and The forced turbulent environment dominated by forced shear flow strengthens the collision and adhesion probability of fine particles and bubbles in the slurry in the mineralization cylinder, improves the efficiency and capacity of the mineralization reaction, and thereby improves the recovery ability of fine particles;
d.在矿化筒体内完成矿化反应后的矿浆最终从圆锥7顶部的出料口挡板1侧边进入矿浆出料管6最终从矿浆出料管出口B排出，完成矿化反应。d. After completing the mineralization reaction in the mineralization cylinder, the slurry finally enters the slurry discharge pipe 6 from the side of the discharge opening baffle 1 at the top of the cone 7 and is finally discharged from the slurry discharge pipe outlet B to complete the mineralization reaction.

Claims (4)

  1. 一种强制湍流矿化反应装置，其特征在于：它包括矿化筒体、复合流预矿化发生系统、微泡发生系统和矿浆分配系统，A forced turbulent mineralization reaction device, which is characterized in that it includes a mineralization cylinder, a composite flow pre-mineralization generation system, a microbubble generation system and a slurry distribution system,
    所述的矿化筒体包括垂直设置的圆筒(8)，圆筒(8)上方设有圆锥(7)，圆锥(7)顶部垂直设有矿浆出料管(6)，圆锥(7)与矿浆出料管(6)之间设有出料口挡板(1)，圆筒(8)内壁设置有多个契形结构的湍流发生器(4)；The mineralization cylinder includes a vertical cylinder (8), a cone (7) is arranged above the cylinder (8), a slurry discharge pipe (6) is vertically arranged on the top of the cone (7), and the cone (7) A discharge port baffle (1) is arranged between the slurry discharge pipe (6), and a plurality of wedge-shaped turbulence generators (4) are arranged on the inner wall of the cylinder (8);
    所述复合流预矿化发生系统包括垂直设置在圆筒(8)周围与圆筒(8)高度匹配的多组矿浆分配管(10)，矿浆分配管(10)与圆筒(8)之间检查设有多个剪切流预矿化管(2)和多个撞击流预矿化管(3)，其中剪切流预矿化管(2)与圆筒(8)沿切向连接，撞击流预矿化管(3)与圆筒(8)沿径向连接；The composite flow premineralization generation system includes multiple sets of slurry distribution pipes (10) vertically arranged around the cylinder (8) and the height of the cylinder (8), and the slurry distribution pipe (10) and the cylinder (8) There are multiple shear flow premineralization pipes (2) and multiple impinging flow premineralization pipes (3), in which the shear flow premineralization pipe (2) and the cylinder (8) are connected in the tangential direction. , The impinging stream premineralization tube (3) and the cylinder (8) are connected in the radial direction;
    所述矿浆分配系统包括矿浆分配环(5)，矿浆分配环(5)设置在矿浆分配管(10)下方，矿浆分配管(10)顶部密封、底部与矿浆分配环(5)连接导通，矿浆分配环(5)通过管路连接有给料泵(11)。The slurry distribution system includes a slurry distribution ring (5), the slurry distribution ring (5) is arranged below the slurry distribution pipe (10), the top of the slurry distribution pipe (10) is sealed, and the bottom is connected to the slurry distribution ring (5). The slurry distribution ring (5) is connected with a feed pump (11) through a pipeline.
  2. 根据权利要求1所述的强制湍流矿化反应装置，其特征在于：矿浆分配管(10)的数量为双数，矿浆分配管(10)围绕圆筒(8)相对设置，均布于圆筒(8)外侧；剪切流预矿化管(2)和撞击流预矿化管(3)均为文丘里管结构；剪切流预矿化管(2)和撞击流预矿化管(3)间隔设置；相邻剪切流预矿化管(2)切向接入圆筒(8)的方向相反；文丘里管上设有微泡发生器(9)，微泡发生器(9)分别设置在剪切流预矿化管(2)和撞击流预矿化管(3)喷嘴出口的后方。The forced turbulent mineralization reaction device according to claim 1, characterized in that: the number of slurry distribution pipes (10) is an even number, and the slurry distribution pipes (10) are arranged oppositely around the cylinder (8) and are evenly distributed on the cylinder (8) Outside; Shear flow premineralization tube (2) and impinging flow premineralization tube (3) are both Venturi tube structures; shear flow premineralization tube (2) and impinging flow premineralization tube ( 3) Interval setting; adjacent shear flow premineralization tubes (2) tangentially connect to the cylinder (8) in opposite directions; the venturi tube is equipped with a microbubble generator (9), a microbubble generator (9) ) Are respectively arranged behind the nozzle outlets of the shear flow premineralization pipe (2) and the impinging flow premineralization pipe (3).
  3. 根据权利要求1所述的强制湍流矿化反应装置，其特征在于：所述湍流发生器(4)交替设置在剪切流预矿化管(2)和撞击流预矿化管(3)之间，每层均布4个，为单独的楔形结构，湍流发生器(4)上设置有三角棱，棱尖角指向圆筒(8)中心，用于进一步产生局部强制旋涡，强化流体对颗粒表面的剪切作用，促进药剂在颗粒表面的吸附。The forced turbulent flow mineralization reaction device according to claim 1, wherein the turbulence generator (4) is alternately arranged between the shear flow premineralization tube (2) and the impinging flow premineralization tube (3). There are 4 evenly distributed in each layer, which is a separate wedge-shaped structure. The turbulence generator (4) is provided with triangular edges, and the sharp corners point to the center of the cylinder (8) to further generate local forced vortices and strengthen the fluid to particles The shearing effect of the surface promotes the adsorption of the drug on the surface of the particles.
  4. 一种使用权利要求1所述强制湍流矿化反应装置的强制湍流矿化反应方法，其特征在于步骤如下：A forced turbulent mineralization reaction method using the forced turbulent mineralization reaction device of claim 1, characterized in that the steps are as follows:
    a.将调质后的矿浆经给料泵(11)进口()A，通过给料泵(11)加压后输入矿浆分配环(5)，并通过矿浆分配环(5)上设置的矿浆分配管(10)分别进入剪切流预矿化管(2)和撞击流预矿化管(3)中；a. Pass the quenched and tempered slurry through the feed pump (11) inlet () A, pressurized by the feed pump (11), and then enter the slurry distribution ring (5), and pass through the slurry set on the slurry distribution ring (5) The distribution pipe (10) enters the shear flow premineralization pipe (2) and the impinging flow premineralization pipe (3) respectively;
    b.向剪切流预矿化管(2)和撞击流预矿化管(3)上的泡沫发生器(9)中注入压缩空气从而在剪切流预矿化管(2)和撞击流预矿化管(3)中的压力矿浆中产生微泡化；b. Inject compressed air into the foam generator (9) on the shear flow premineralization tube (2) and the impinging flow premineralization tube (3) so that the shear flow premineralization tube (2) and the impinging flow Microbubbles are generated in the pressure slurry in the premineralization pipe (3);
    c.微泡化矿浆在压力的作用下经剪切流预矿化管(2)和撞击流预矿化管(3)预矿化后生成三相矿浆，剪切流预矿化管(2)的三相矿浆沿切向给入矿化筒体，撞击流预矿化管(3)中的三相矿浆沿径向给入矿化筒体，并利用筒体内湍流发生器(4)的流体强化作用，形成以高速撞击流和强制剪切流为主的强制湍流环境，强化矿化筒体内矿浆中的微细颗粒与气泡的碰撞与粘附概率，提高矿化反应效率和能力，进而提高对微细颗粒的回收能力；c. The microbubble pulp is pre-mineralized through the shear flow premineralization tube (2) and impinging flow premineralization tube (3) under pressure to generate three-phase slurry, and the shear flow premineralization tube (2) ) Three-phase slurry is fed into the mineralization cylinder along the tangential direction, and the three-phase slurry in the impinging stream premineralization tube (3) is fed into the mineralization cylinder along the radial direction, and the turbulence generator (4) in the cylinder The fluid strengthening effect forms a forced turbulent environment dominated by high-speed impinging flow and forced shear flow, which strengthens the collision and adhesion probability of fine particles and bubbles in the slurry in the mineralization cylinder, and improves the efficiency and capacity of the mineralization reaction, thereby increasing The ability to recover fine particles;
    d.在矿化筒体内完成矿化反应后的矿浆最终从圆锥(7)顶部的出料口挡板(1)侧边进入矿浆出料管(6)最终从矿浆出料管出口()B排出，完成矿化反应。d. After the mineralization reaction is completed in the mineralization cylinder, the slurry finally enters the slurry discharge pipe (6) from the side of the discharge opening baffle (1) at the top of the cone (7) and finally exits the slurry discharge pipe outlet () B Drain to complete the mineralization reaction.
PCT/CN2019/109880 2019-04-29 2019-10-08 Forced turbulence mineralization reaction device and method WO2020220582A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910359315.8A CN109939840B (en) 2019-04-29 2019-04-29 Forced turbulence mineralization reaction device and method
CN201910359315.8 2019-04-29

Publications (1)

Publication Number Publication Date
WO2020220582A1 true WO2020220582A1 (en) 2020-11-05

Family

ID=67016749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/109880 WO2020220582A1 (en) 2019-04-29 2019-10-08 Forced turbulence mineralization reaction device and method

Country Status (2)

Country Link
CN (1) CN109939840B (en)
WO (1) WO2020220582A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109939840B (en) * 2019-04-29 2023-10-24 中国矿业大学 Forced turbulence mineralization reaction device and method
CN110681275B (en) * 2019-10-15 2020-11-20 中国矿业大学 Rotational flow stirring and mixing device and method
CN110841806B (en) * 2019-11-21 2021-01-12 清华大学 Flotation method for fine particle mineral powder

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997549A (en) * 1989-09-19 1991-03-05 Advanced Processing Technologies, Inc. Air-sparged hydrocyclone separator
CN103480501A (en) * 2013-10-15 2014-01-01 武汉工程大学 Phosphate ore floatation method and system
CN203664023U (en) * 2014-01-17 2014-06-25 湖南中工矿业工程技术有限公司 Jet flow flotation column
CN104772230A (en) * 2015-03-27 2015-07-15 山东莱芜煤矿机械有限公司 Large-sized floatation column middling dual-swirl device
CN105363380A (en) * 2015-10-27 2016-03-02 中国矿业大学 Device and method for pretreating external circulation type pulp based on jet flow mixing
CN106040442A (en) * 2016-07-26 2016-10-26 中国矿业大学 Cyclone-static micro bubble flotation column step enhanced pipe flow section mineralization device
CN109939840A (en) * 2019-04-29 2019-06-28 中国矿业大学 A kind of forced turbulent mineralising reaction device and method
CN109967264A (en) * 2019-04-29 2019-07-05 中国矿业大学 A kind of hybrid separation system and method based on hydroenhancement
CN209849102U (en) * 2019-04-29 2019-12-27 中国矿业大学 Forced turbulent mineralization reaction device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863908B1 (en) * 2003-12-22 2006-05-19 Otv Sa FLOCCULATION TREATMENT PROCESS AND REACTOR
CN104511374B (en) * 2014-12-10 2019-02-19 中国矿业大学 A kind of pipe stream section apparatus suitable for fine mineral mineralising
CN107377236B (en) * 2017-09-04 2023-06-30 中煤（天津）洗选科技有限公司 Turbulent flow dosing device for mineral separation equipment
CN207981434U (en) * 2017-12-12 2018-10-19 中国矿业大学(北京) Strengthen the floatation equipment of three-phase ore pulp turbulence intensity
CN108097471B (en) * 2017-12-12 2023-04-25 中国矿业大学(北京) Flotation method and flotation equipment for strengthening turbulence intensity of three-phase ore pulp
CN108273668B (en) * 2018-03-28 2024-03-01 中国矿业大学 Rapid flotation system and flotation method based on high-turbulence mixed mineralization

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997549A (en) * 1989-09-19 1991-03-05 Advanced Processing Technologies, Inc. Air-sparged hydrocyclone separator
CN103480501A (en) * 2013-10-15 2014-01-01 武汉工程大学 Phosphate ore floatation method and system
CN203664023U (en) * 2014-01-17 2014-06-25 湖南中工矿业工程技术有限公司 Jet flow flotation column
CN104772230A (en) * 2015-03-27 2015-07-15 山东莱芜煤矿机械有限公司 Large-sized floatation column middling dual-swirl device
CN105363380A (en) * 2015-10-27 2016-03-02 中国矿业大学 Device and method for pretreating external circulation type pulp based on jet flow mixing
CN106040442A (en) * 2016-07-26 2016-10-26 中国矿业大学 Cyclone-static micro bubble flotation column step enhanced pipe flow section mineralization device
CN109939840A (en) * 2019-04-29 2019-06-28 中国矿业大学 A kind of forced turbulent mineralising reaction device and method
CN109967264A (en) * 2019-04-29 2019-07-05 中国矿业大学 A kind of hybrid separation system and method based on hydroenhancement
CN209849102U (en) * 2019-04-29 2019-12-27 中国矿业大学 Forced turbulent mineralization reaction device

Also Published As

Publication number Publication date
CN109939840B (en) 2023-10-24
CN109939840A (en) 2019-06-28

Similar Documents

Publication Publication Date Title
WO2020220582A1 (en) Forced turbulence mineralization reaction device and method
CN109939839B (en) Fluid collaborative strengthening flotation separation device and method
CN108273668B (en) Rapid flotation system and flotation method based on high-turbulence mixed mineralization
CN105363380B (en) A kind of outer circulation type ore pulp pretreatment unit and method based on jet mixing
US11925944B2 (en) High-ash fine coal slime separation equipment and method
CN210207231U (en) Fluid synergistic enhanced flotation separation device
CN109967264B (en) Mixed separation system and method based on fluid strengthening
CN109731698B (en) High-ash and easily-floating fine-grain coal slime column sorting device and method
CN108246515B (en) Pulping and flotation integrated system with internal circulation function and pulping and flotation method
CN104815770A (en) Whole-grade slurry separation device
CN106040442B (en) Cyclonic-static fine-bubble flotation column step enhanced tube stream section mineralization device
CN108339673A (en) A kind of cavitation jet flotation bubble generator and flotation unit
WO2020220587A1 (en) Cooperative forced mixing and conditioning device and method for fluid
CN103979637A (en) Purification device and separation method of oily sewage
CN102580861A (en) Multiple circulating column outside micro-bubble mineralizing flotation column
WO2020220583A1 (en) Combined-flow enhanced flotation separation device and method
CN110899003A (en) Novel controllable flotation of nanometer bubble device
WO2021051953A1 (en) Strong turbulent flow generation device suitable for rapid sorting of micro-fine particles
CN209849102U (en) Forced turbulent mineralization reaction device
CN110369158B (en) Flotation column device
CN205868559U (en) Whirl static microbubble flotation column step strengthening pipe flows section mineralize mineralization device
CN208627554U (en) A kind of fast-flotation system based on strong turbulence mixing mineralising
CN210146239U (en) Composite flow enhanced flotation separation device
CN210146238U (en) Mixed separation system based on fluid intensification
CN107225049A (en) A kind of Self inhaling type cyclone-static microbubble floatation column

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19926788

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19926788

Country of ref document: EP

Kind code of ref document: A1