WO2024012142A1 - Active and passive composite turbulent vortex multi-stage enhanced coal slime classification apparatus - Google Patents

Active and passive composite turbulent vortex multi-stage enhanced coal slime classification apparatus Download PDF

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Publication number
WO2024012142A1
WO2024012142A1 PCT/CN2023/100380 CN2023100380W WO2024012142A1 WO 2024012142 A1 WO2024012142 A1 WO 2024012142A1 CN 2023100380 W CN2023100380 W CN 2023100380W WO 2024012142 A1 WO2024012142 A1 WO 2024012142A1
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WIPO (PCT)
Prior art keywords
turbulence
classification
active
column section
passive
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PCT/CN2023/100380
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French (fr)
Chinese (zh)
Inventor
王传真
李闵
张学佳
徐丽婷
刘海增
郑钢丰
邱轶兵
吕文豹
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安徽理工大学
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Publication of WO2024012142A1 publication Critical patent/WO2024012142A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/004—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with internal filters, in the cyclone chamber or in the vortex finder

Definitions

  • the invention relates to the field of classification equipment, and in particular to a coal slime classification equipment with active and passive composite turbulent multi-stage strengthening.
  • coal slime classification is crucial to the clean and efficient utilization of coal.
  • the commonly used coal slime classification equipment in industry mainly includes vibrating screens, curved screens, hydraulic classification cyclones, desliming tanks and spiral separators. Although after continuous optimization of structural performance, the above equipment shows a large processing capacity. , small maintenance, high degree of automation and low operating costs.
  • the invention patent with announcement number CN 101844115A discloses a three-product cyclone classification screen, including a cylindrical guide tube, a cyclone cylindrical tube, and a cyclone conical tube.
  • the main feature is the cyclone cylindrical guide tube.
  • the lower port of the cylinder is connected with a cylindrical screen.
  • the cylindrical screen is set in the cyclone cylinder, and the conical screen is set inside the cone.
  • the invention patent with announcement number CN 268493Y discloses a hydrocyclone with a filter.
  • the main feature of the invention is that a filter is provided between the feed pipe and the overflow pipe. The diameter and shape of the filter are related to the hydrocyclone.
  • the axial zero-speed envelope surface of the flow device is consistent, the lower part of the mesh is open, and the upper part is connected to the top of the feed chamber, which can solve the problem of overflow and thickening to a certain extent, but it has not yet solved the problem of underflow pinching; the public number is CN109794353B
  • the invention patent discloses a three-product radial magnetic field magnetic cyclone for magnetite sorting and classification.
  • the main feature of this invention is that a built-in magnetic field at the bottom of the cylindrical section realizes the separation of coarse-grained contiguous bodies and magnetite.
  • the invention patent with announcement number CN113333185B provides a three-phase cyclone separator with a guide cone in the center, including a solid-liquid cyclone separation section, Liquid-liquid cyclone separation section, the solid-liquid cyclone separation section includes a large cylinder, a double-cut inlet for solid-liquid mixed phase, a solid-liquid cyclone separation cavity, a double-cut solid discharge outlet, and a flow guide cone.
  • the liquid-liquid cyclone separation section The separation section includes a cylindrical section, a cone section, a liquid-liquid cyclone separation chamber, a heavy phase outlet pipe, and a light phase outlet pipe.
  • this invention is used to remove oil and coke powder from delayed coking sulfur-containing wastewater, and is adaptable to coal slime.
  • Application No. 202021200410.8 and Application No. 202010592986.1 announced a multi-field composite fine particle classification equipment, including an inlet diversion cylindrical cylinder, a cyclonic screening cylindrical screen, an electromagnetic classification cylindrical cylinder, a centrifugal classification cylindrical cylinder, and a vortex Detecting cylindrical cylinders can achieve efficient classification of fine particles under the combined effects of gravity, centrifugal force and electromagnetic force.
  • coal slime particles have no electromagnetic properties, the application of this patent is limited in the field of coal slime classification.
  • the present invention proposes an active and passive composite turbulent vortex multi-stage enhanced slime classification equipment.
  • An active and passive compound turbulent vortex multi-stage enhanced coal slime classification equipment including a loose stratified material cylinder, a turbulent vortex detection structure located on the upper part of the loose stratified material cylinder, and an active vortex detection structure connected to the lower end of the loose stratified material cylinder.
  • Turbulence classification column section the lower end of the active turbulence classification column section is connected with the passive turbulence classification cylinder Connected, the lower end of the passive turbulence classification cylinder is connected to the passive turbulence classification cone;
  • a coal slurry water inlet is provided at the upper part of the loose layered cylinder of the material.
  • the active turbulent flow classification column section is rotatably connected to a vertically arranged active turbulence column section generating structure.
  • the upper end of the active turbulence classification column section is provided with a coal slurry water inlet.
  • a turbulence detection tube is provided at the lower end of the turbulence detection structure 5, and the upper end of the turbulence detection tube is connected with the turbulence collection cavity.
  • the lower end of the detection tube extends into the active turbulence classification column section;
  • the upper part of the passive turbulence classification cylinder is provided with a dilution and supplementary water inlet, and the lower end of the passive turbulence classification cone is provided with a cone section discharge port; the side wall of the active turbulence classification column section is provided with several column section discharges mouth.
  • the cone angle of the passive turbulent flow classification cone 4 is 10 to 30°.
  • the active turbulence column section generating structure includes a plurality of screen bars, and the plurality of screen bars are arranged in an annular array.
  • the material of the screen bars is stainless steel, plain carbon steel or polyurethane.
  • the cross section of the screen bar is trapezoidal, circular bar type or gear type.
  • the inner diameter of the dilution and supplementary water inlet is consistent with and in the same direction as the inner diameter of the coal slurry water inlet.
  • the height of the loose layered column of materials is consistent with that of the active turbulent flow classification column section.
  • the active turbulence driving motor drives the rotation of the active turbulence classification column section through gear transmission.
  • a driving wheel arranged on the right side is connected to the active turbulence drive motor and meshes with the external teeth of the left transmission gear.
  • the active turbulence drive motor When the active turbulence drive motor is working, it drives the driving wheel connected to it to rotate clockwise, and through gear transmission, the transmission gear meshed with it rotates counterclockwise correspondingly. At the same time, several driven wheels mesh with the internal teeth of the transmission gear. Drive counterclockwise.
  • a vibration exciter can also be provided to achieve vibration of the active turbulence column section generating structure.
  • an excitation plate is provided at the bottom of the active turbulence classification column section. The excitation plate contacts the bottom end of the structure of the active turbulence column section. The excitation plate is connected to an exciter. The two excitation plates The vibrator is symmetrically arranged on both sides. The vibration generated when the exciter is working is transmitted to the active turbulence column section generating structure through the excitation plate, causing the active turbulence column section to generate structural vibration.
  • the active turbulence can be controlled by the active turbulence drive motor 2-1 and/or the exciter and the active turbulence column section generating structure 2-2, and the passive turbulence can be controlled by diluting and replenishing water in the diluting and replenishing water inlet 3-1 Flow rate adjustment, high degree of process control automation, suitable for various classification needs, strong applicability;
  • the column section annular screen bar 2-2a has dynamic behaviors of different frequency vibrations, different periodic rotations and different degrees of elastic deformation, and can be used around the column section annular screen bar 2-2a It forms an active turbulence zone and can effectively solve the hole blocking phenomenon of traditional screens, which is beneficial to classification;
  • the secondary enhanced classification consisting of a passive turbulence classification cylinder 3 and a passive turbulence classification cone 4 equipped with diluted supplementary water can further optimize the slime water classification process and improve the classification efficiency.
  • Figure 1 shows the active and passive composite turbulence-enhanced slime classification equipment of this application
  • Figure 2 is an A-A cross-sectional view of the active and passive composite turbulence-enhanced slime classification equipment of the present application
  • Figure 3 is a side cross-sectional view of the active turbulent flow classification column section
  • Figure 4 is a sectional view BB in Figure 3.
  • An active and passive compound turbulent vortex multi-stage enhanced coal slime classification equipment is used for efficient coal slime classification, including a loose stratified material cylinder 1 and a turbulent vortex detection structure located on the upper part of the loose stratified material cylinder 1 5.
  • the active turbulence classification column section 2 is located at the lower end of the material loose stratification cylinder 1.
  • the lower end of the active turbulence classification column section 2 is connected to the passive turbulence classification cylinder 3.
  • the lower end of the passive turbulence classification cylinder 3 is connected to the passive turbulence classification cone 4.
  • the material loose stratification cylinder 1 is composed of the coal slurry water inlet 1-1 and the material loose stratification cylinder shell 1-2.
  • the active turbulence classification column section 2 is composed of an active turbulence driving motor 2-1 and an active turbulence column section generating structure 2- 2.
  • the column section discharge port 2-3 is composed of the active turbulence column section shell 2-4.
  • the passive turbulence classification cylinder 3 is composed of the dilution and supplementary water inlet 3-1 and the passive turbulence classification cylinder shell 3-2.
  • the cone 4 is provided with a passive turbulence classification cone shell 4-1 and a cone section discharge port 4-2.
  • the turbulence detection structure 5 is provided with a turbulence collection cavity 5-1, a turbulence detection tube 5-2 and a top discharge port 5 -3 composition.
  • the coal slurry water inlet 1-1 is on the left side of the material loose stratification cylinder 1 and is tangent to the material loose stratification cylinder shell 1-2.
  • the inner diameter of the coal slurry water inlet 1-1 is distributed from 10 to 65 mm according to different specifications. loose material
  • the height of the layered cylindrical shell 1-2 is 3-5 times the inner diameter of the coal slurry water inlet 1-1.
  • the particle group in the slurry is fully loosened, providing necessary conditions for the next step of particle classification;
  • the active turbulence column section generating structure 2-2 is driven by the active turbulence drive motor 2-1 to regularly generate active turbulence vortices in the active turbulence classification column section 2, and the column section discharge port 2-3 is uniform from top to bottom.
  • the number of column section discharge openings 2-3 can be adjusted according to specific needs (1 to 5), the inner diameter of column section discharge openings 2-3 is 1 to 1.5 times the inner diameter of feed opening 1-1, active turbulent column section
  • the height of the shell 2-4 is 1.5 to 2 times the height of the loose layered cylindrical shell 1-2; the dilution and supplementary water inlet 3-1 is located at the upper left part of the passive turbulent classification cylinder 3, and the dilution and supplementary water inlet 3-1 has an inner diameter
  • the inner diameter of the coal slurry water inlet 1-1 is consistent and in the same direction.
  • the diluted supplementary water inlet 3-1 is tangent to the passive turbulent flow classification cylindrical shell 3-2.
  • the height of the passive turbulence classification cylindrical shell 3-2 is consistent with the loose stratification of the material.
  • the height of the cylindrical shell 1-2 is consistent; the cone angle of the passive turbulence classification cone 4 is adjustable from 10 to 30°, and the height of the passive turbulence classification cone shell 4-1 is 1 to 1.2 times the height of the passive turbulence classification cylindrical shell 3-2.
  • the inner diameter of the section discharge port 4-2 is 0.25 to 0.5 times the inner diameter of the coal slurry water inlet 1-1; the turbulence collection cavity 5-1 is located at the top of the turbulence detection structure 5, and the height of the turbulence collection cavity 5-1 is the top
  • the inner diameter of the discharge port 5-3 is 1.5 times.
  • the insertion depth of the turbulence detection tube 5-2 covers the active turbulence classification column section 2 and the passive turbulence classification cylinder 3.
  • the top discharge port 5-3 is located in the turbulence collection cavity 5-2. On the right side, the inner diameter of top discharge port 5-3 is the same as the inner diameter of column section discharge port 2-3.
  • Material loose stratification cylinder 1, active turbulent flow classification column section 2, passive turbulence classification cylinder 3, passive turbulence classification cone 4, and turbulence detection structure 5 are flexibly connected through flanges for easy disassembly; loose material stratification cylinder 1 inner diameter , the inner diameter of active turbulence classification column section 2, the inner diameter of passive turbulence classification cylinder 3, the inner diameter of the large end of passive turbulence classification cone 4 is consistent with the inner diameter of turbulence collection cavity 5-1, the inner diameter of the small end of passive turbulence classification cone 4 and the cone section discharge port 4 -2 The inner diameter is the same.
  • an active turbulence drive motor can be used to drive the vibration of the active turbulence classification column section 2.
  • the active turbulence drive motor 2-1 has a frequency conversion of 0 to 50 Hz.
  • the active turbulence column section generating structure 2-2 is as follows: As shown in Figures 2 and 3, it is composed of a number of evenly distributed column segment annular screen bars 2-2a. The spacing between adjacent screen bars is adjustable from 0.074 to 1mm.
  • the screen bar types are inverted trapezoidal ( Figure 2(a)) and round bar type.
  • the screen bar material can be made of stainless steel, plain carbon steel, polyurethane and other wear-resistant materials
  • the active turbulence column section generating structure 2-2 is driven by the active turbulence motor 2 -1
  • the driving action has dynamic behaviors of different frequency vibrations, different periodic rotations and different degrees of elastic deformation, thereby forming an active turbulent vortex near the annular screen bar 2-2a of the column section, providing a basis for particle classification in the active turbulent classification column section 2 Flow field environment.
  • FIG 4 is a B-B cross-sectional view in Figure 3.
  • the gear on the right side of the figure is the driving wheel 7-1, which is connected to the active turbulence drive motor 2-1 and meshes with the external teeth of the left transmission gear 7-2.
  • the active turbulence driving motor 2-1 When the active turbulence driving motor 2-1 is working, it drives the driving wheel 7-1 connected thereto to rotate clockwise, and through gear transmission, the transmission gear 7-2 meshed with it rotates counterclockwise correspondingly.
  • a number of driven wheels 7-3 meshing with the internal teeth of the transmission gear 7-2 rotate counterclockwise driven by the transmission gear 7-2, thereby realizing an active turbulent vortex effect.
  • the vibration of the active turbulent flow classification column section 2 can also be achieved by setting up a vibrator.
  • Figure 3 which is a side cross-sectional view of the active turbulence classification column section 2
  • an excitation plate 6-2 at the bottom of the active turbulence classification column section 2 that is in contact with the bottom end of the active turbulence column section generating structure 2-2.
  • the excitation plate There are two exciters 6-1 symmetrically distributed on both sides of 6-2. The vibration generated when the exciter 6-1 is working is transmitted to the active turbulence column section generating structure 2-2 through the excitation plate 6-2, causing the active turbulence column section generating structure 2-2 to vibrate.
  • the active turbulence driving motor and the vibrator can also be used to realize the vibration of the active turbulence classification column section 2.
  • the working process of the present invention is as follows: coal slime water of appropriate concentration enters the material loose layered cylinder 1 in a tangential manner from the coal slime water inlet 1-1, and spirally flows into the cylinder 1 under the combined action of gravity and centrifugal force.
  • the active turbulence driving motor and/or vibrator are used to drive the active turbulence vortex generated by the active turbulence column section generating structure 2-2.
  • the passive turbulent flow classification cone 4 When the passive turbulent flow classification cone 4 is reached, the flow area is continuously reduced due to the cone structure, and the tangential movement speed of the slurry further increases. Large, the coal slime in the slurry undergoes secondary enhanced classification, in which the coarse particles are close to the passive turbulence classification cylindrical shell 3-2 and the passive turbulence classification cone shell 4-1 and move downward, while the fine particles are away from the passive turbulence classification cylindrical shell 3-2 and the passive turbulence graded conical shell 4-1 and then moves upward, and enters the turbulence detection tube 5-2 at the lower end of the turbulence detection structure 5, and flows out from the top discharge port 5-3 through the turbulence collection cavity 5-1.

Abstract

An active and passive composite turbulent vortex multi-stage enhanced coal slime classification apparatus, comprising a material loosening and layering cylinder, a turbulent vortex detection structure provided on the upper portion of the material loosening and layering cylinder, and an active turbulent vortex classification cylinder section connected to the lower end of the material loosening and layering cylinder. The lower end of the active turbulent vortex classification cylinder section is connected to a passive turbulent vortex classification cylinder, and a passive turbulent vortex classification cone is connected to the lower end of the passive turbulent vortex classification cylinder.

Description

一种主动和被动复合湍涡多级强化的煤泥分级设备An active and passive composite turbulent multi-stage enhanced slime classification equipment 技术领域Technical field
本发明涉及分级设备领域，具体涉及一种主动和被动复合湍涡多级强化的煤泥分级设备。The invention relates to the field of classification equipment, and in particular to a coal slime classification equipment with active and passive composite turbulent multi-stage strengthening.
背景技术Background technique
我国是全球最大的煤炭开采和消费国，煤炭不仅在我国的能源消费结构中占主体地位，同时也是极其重要的工业原料，对我国绿色经济发展举足轻重。目前，由于煤炭开采深度不断增加、煤炭开采机械化程度不断提高，煤泥在原煤中的含量越来越高，因此，煤泥高效分级对煤炭清洁高效利用至关重要。当前，工业上常用的煤泥分级设备主要有振动筛、弧形筛、水力分级旋流器、脱泥池和螺旋分选机等，虽然经过不断的结构性能优化，上述设备呈现出处理量大、维修量小、自动化程度高和运行成本低等优点，然而在原煤煤泥含量快速升高的新形势下，其分级效率亟待提高的需求依然突出。这不仅关系到煤炭洗选产品质量，更影响到生产系统的稳定性及其节能降耗。因此，更好分级效率的煤泥分级设备是煤炭洗选加工行业急需解决的难题。my country is the world's largest coal mining and consumer country. Coal not only occupies a dominant position in my country's energy consumption structure, but is also an extremely important industrial raw material and plays a decisive role in the development of my country's green economy. At present, due to the increasing depth of coal mining and the increasing mechanization of coal mining, the content of coal slime in raw coal is getting higher and higher. Therefore, efficient coal slime classification is crucial to the clean and efficient utilization of coal. Currently, the commonly used coal slime classification equipment in industry mainly includes vibrating screens, curved screens, hydraulic classification cyclones, desliming tanks and spiral separators. Although after continuous optimization of structural performance, the above equipment shows a large processing capacity. , small maintenance, high degree of automation and low operating costs. However, under the new situation of rapid increase in the content of raw coal and slime, the urgent need to improve its classification efficiency is still prominent. This is not only related to the quality of coal washing products, but also affects the stability of the production system and its energy saving and consumption reduction. Therefore, coal slime classification equipment with better classification efficiency is an urgent problem that the coal washing and processing industry needs to solve.
围绕提高分级效率，公告号CN 101844115A的发明专利公开了一种三产品旋流分级筛，包括圆柱导流筒、旋流器圆柱筒、旋流器圆锥筒，主要特征是旋流器圆柱导流筒的下端口连接有圆柱筒筛网，圆柱筒筛网套装在旋流器圆柱内，圆锥筒筛网套装在圆锥筒内部，圆锥筒上设有补水，中心管与锥筒筛网之间设有导流盘，利用强离心力场下边壁外旋流的压力差使细颗粒实现透筛筛分，消除了旋流器边壁和顶盖附近环流跑粗，但设备圆柱筒筛网下部存在返流等现象； 公告号为CN 268493Y的发明专利公开了一种带过滤网的水力旋流器，该发明主要特征是在进料管和溢流管之间设置了一过滤网，过滤网的直径和形状与旋流器轴向零速包络面一致，网的下部敞口，上部与入料腔的顶部连接，能够一定程度上解决溢流跑粗问题，但仍未解决底流夹细问题；公开号为CN109794353B的发明专利公开了一种磁铁矿分选分级的三产品径向磁场磁力旋流器，该发明主要特征是在圆柱段底部内置磁场实现粗粒连生体与磁铁矿的分离，该发明主要用于磁铁矿分级，对其他矿物分级适用性未提及；公告号为CN113333185B的发明专利提供了一种中心带导流锥的三相旋流分离器，包括了固液旋流分离段、液液旋流分离段，所述固液旋流分离段包括大圆筒、固液混合相双切入口、固液旋流分离腔、双切排固出口、导流锥，所述液液旋流分离段包括圆柱段、锥段、液液旋流分离腔、重相出口管、轻相出口管，但该发明用于脱除延迟焦化含硫废水中的油和焦粉，对于煤泥适应性未提及；申请号202021200410.8和申请号202010592986.1公布了一种多场复合细粒分级设备，包括入料导流圆柱筒、旋流筛分圆柱筛网、电磁分级圆柱筒、离心分级圆台筒、旋涡探测圆柱筒，其能够实现重力、离心力和电磁力等多场复合作用下细粒的高效分级，但由于煤泥颗粒无电磁特性，故该专利在煤泥分级领域应用受限。Focusing on improving classification efficiency, the invention patent with announcement number CN 101844115A discloses a three-product cyclone classification screen, including a cylindrical guide tube, a cyclone cylindrical tube, and a cyclone conical tube. The main feature is the cyclone cylindrical guide tube. The lower port of the cylinder is connected with a cylindrical screen. The cylindrical screen is set in the cyclone cylinder, and the conical screen is set inside the cone. There is a water supply on the cone, and there is a water supply between the central tube and the cone screen. There is a guide plate, which uses the pressure difference of the cyclone outside the side wall under the strong centrifugal force field to achieve through-sieve screening of fine particles, eliminating the coarse circulation near the side wall and top cover of the cyclone. However, there is backflow at the bottom of the cylindrical screen of the equipment. and other phenomena; The invention patent with announcement number CN 268493Y discloses a hydrocyclone with a filter. The main feature of the invention is that a filter is provided between the feed pipe and the overflow pipe. The diameter and shape of the filter are related to the hydrocyclone. The axial zero-speed envelope surface of the flow device is consistent, the lower part of the mesh is open, and the upper part is connected to the top of the feed chamber, which can solve the problem of overflow and thickening to a certain extent, but it has not yet solved the problem of underflow pinching; the public number is CN109794353B The invention patent discloses a three-product radial magnetic field magnetic cyclone for magnetite sorting and classification. The main feature of this invention is that a built-in magnetic field at the bottom of the cylindrical section realizes the separation of coarse-grained contiguous bodies and magnetite. The main features of this invention It is used for magnetite classification, and its applicability to other mineral classifications is not mentioned; the invention patent with announcement number CN113333185B provides a three-phase cyclone separator with a guide cone in the center, including a solid-liquid cyclone separation section, Liquid-liquid cyclone separation section, the solid-liquid cyclone separation section includes a large cylinder, a double-cut inlet for solid-liquid mixed phase, a solid-liquid cyclone separation cavity, a double-cut solid discharge outlet, and a flow guide cone. The liquid-liquid cyclone separation section The separation section includes a cylindrical section, a cone section, a liquid-liquid cyclone separation chamber, a heavy phase outlet pipe, and a light phase outlet pipe. However, this invention is used to remove oil and coke powder from delayed coking sulfur-containing wastewater, and is adaptable to coal slime. Not mentioned; Application No. 202021200410.8 and Application No. 202010592986.1 announced a multi-field composite fine particle classification equipment, including an inlet diversion cylindrical cylinder, a cyclonic screening cylindrical screen, an electromagnetic classification cylindrical cylinder, a centrifugal classification cylindrical cylinder, and a vortex Detecting cylindrical cylinders can achieve efficient classification of fine particles under the combined effects of gravity, centrifugal force and electromagnetic force. However, since coal slime particles have no electromagnetic properties, the application of this patent is limited in the field of coal slime classification.
发明内容Contents of the invention
针对现有技术的不足，本发明提出了一种主动和被动复合湍涡多级强化的煤泥分级设备。In view of the shortcomings of the existing technology, the present invention proposes an active and passive composite turbulent vortex multi-stage enhanced slime classification equipment.
本发明的目的可以通过以下技术方案实现：The object of the present invention can be achieved through the following technical solutions:
一种主动和被动复合湍涡多级强化的煤泥分级设备，包括物料松散分层圆柱、设在所述物料松散分层圆柱上部的湍涡探测结构与连接在物料松散分层圆柱下端的主动湍流分级柱段，所述主动湍流分级柱段下端与被动湍流分级圆柱 相连，所述被动湍流分级圆柱下端连接被动湍流分级圆锥；An active and passive compound turbulent vortex multi-stage enhanced coal slime classification equipment, including a loose stratified material cylinder, a turbulent vortex detection structure located on the upper part of the loose stratified material cylinder, and an active vortex detection structure connected to the lower end of the loose stratified material cylinder. Turbulence classification column section, the lower end of the active turbulence classification column section is connected with the passive turbulence classification cylinder Connected, the lower end of the passive turbulence classification cylinder is connected to the passive turbulence classification cone;
所述物料松散分层圆柱的上部开设有煤泥水入料口，所述主动湍流分级柱段的内部转动连接有竖直布置的主动湍流柱段发生结构，所述主动湍流分级柱段的上端设有主动湍流驱动电机；A coal slurry water inlet is provided at the upper part of the loose layered cylinder of the material. The active turbulent flow classification column section is rotatably connected to a vertically arranged active turbulence column section generating structure. The upper end of the active turbulence classification column section is provided with a coal slurry water inlet. There is an active turbulence drive motor;
所述湍涡探测结构内部具有湍流收集腔体，所述湍涡探测结构5的下端设有湍涡探测管，所述湍涡探测管的上端与所述湍流收集腔体连通，所述湍涡探测管的下端延伸到所述主动湍流分级柱段中；There is a turbulence collection cavity inside the turbulence detection structure, a turbulence detection tube is provided at the lower end of the turbulence detection structure 5, and the upper end of the turbulence detection tube is connected with the turbulence collection cavity. The lower end of the detection tube extends into the active turbulence classification column section;
所述被动湍流分级圆柱的上部开设有稀释补充水入料口，所述被动湍流分级圆锥的下端开设有锥段排料口；所述主动湍流分级柱段侧壁上开设有若干柱段排料口。The upper part of the passive turbulence classification cylinder is provided with a dilution and supplementary water inlet, and the lower end of the passive turbulence classification cone is provided with a cone section discharge port; the side wall of the active turbulence classification column section is provided with several column section discharges mouth.
可选地，所述被动湍流分级圆锥4的锥角为10～30°。Optionally, the cone angle of the passive turbulent flow classification cone 4 is 10 to 30°.
可选地，所述主动湍流柱段发生结构包括多个筛条，多个所述筛条呈环形阵列布置。Optionally, the active turbulence column section generating structure includes a plurality of screen bars, and the plurality of screen bars are arranged in an annular array.
可选地，所述筛条的材质为不锈钢、普碳钢或聚氨酯。Optionally, the material of the screen bars is stainless steel, plain carbon steel or polyurethane.
可选地，所述筛条的横截面为梯形、圆条型或齿轮型。Optionally, the cross section of the screen bar is trapezoidal, circular bar type or gear type.
可选地，所述稀释补充水入料口内径与煤泥水入料口内径一致且同向。Optionally, the inner diameter of the dilution and supplementary water inlet is consistent with and in the same direction as the inner diameter of the coal slurry water inlet.
可选地，所述物料松散分层圆柱与主动湍流分级柱段的高度一致。Optionally, the height of the loose layered column of materials is consistent with that of the active turbulent flow classification column section.
其中，所述主动湍流驱动电机通过齿轮传动带动主动湍流分级柱段的转动。在一个具体的实施方式中，通过采用设置于右侧的主动轮与主动湍流驱动电机连接，并与左侧传动齿轮外齿啮合，在传动齿轮内侧有若干个从动轮，它们与传动齿轮内齿啮合，并且与主动湍流柱段发生结构顶部连接。在主动湍流驱动电机工作时带动与其连接的主动轮顺时针转动，通过齿轮传动，与其啮合的传动齿轮相应的逆时针转动。同时与传动齿轮内齿啮合的若干从动轮在传动齿轮 带动下逆时针转动。Wherein, the active turbulence driving motor drives the rotation of the active turbulence classification column section through gear transmission. In a specific embodiment, a driving wheel arranged on the right side is connected to the active turbulence drive motor and meshes with the external teeth of the left transmission gear. There are several driven wheels inside the transmission gear, which are connected with the internal teeth of the transmission gear. mesh, and a structural top connection occurs with the active turbulence column segment. When the active turbulence drive motor is working, it drives the driving wheel connected to it to rotate clockwise, and through gear transmission, the transmission gear meshed with it rotates counterclockwise correspondingly. At the same time, several driven wheels mesh with the internal teeth of the transmission gear. Drive counterclockwise.
在另外的一种实施方式中，还可以通过设置激振器来实现主动湍流柱段发生结构的震动。具体地，在所述主动湍流分级柱段的底部设置有激振板，所述激振板与主动湍流柱段发生结构底端接触，所述激振板与激振器连接，两个激振器对称设置于两侧，在激振器工作时产生的振动通过激振板传递到主动湍流柱段发生结构，使得主动湍流柱段发生结构振动。In another embodiment, a vibration exciter can also be provided to achieve vibration of the active turbulence column section generating structure. Specifically, an excitation plate is provided at the bottom of the active turbulence classification column section. The excitation plate contacts the bottom end of the structure of the active turbulence column section. The excitation plate is connected to an exciter. The two excitation plates The vibrator is symmetrically arranged on both sides. The vibration generated when the exciter is working is transmitted to the active turbulence column section generating structure through the excitation plate, causing the active turbulence column section to generate structural vibration.
本发明的有益效果：Beneficial effects of the present invention:
(1)采用主动湍涡被动湍涡复合作用对煤泥进行分级，分级效率和分级精度更高；(1) The combined action of active turbulent vortices and passive turbulent vortices is used to classify coal slime, with higher classification efficiency and classification accuracy;
(2)主动湍流可通过主动湍流驱动电机2-1和/或激振器和主动湍流柱段发生结构2-2进行调控，被动湍流可通过稀释补充水入料口3-1中稀释补充水流速调节，过程调控自动化程度高，适用于各种分级需要，适用性强；(2) The active turbulence can be controlled by the active turbulence drive motor 2-1 and/or the exciter and the active turbulence column section generating structure 2-2, and the passive turbulence can be controlled by diluting and replenishing water in the diluting and replenishing water inlet 3-1 Flow rate adjustment, high degree of process control automation, suitable for various classification needs, strong applicability;
(3)主动湍流柱段发生结构2-2中柱段环形筛条2-2a具备不同频率振动、不同周期旋转和不同程度弹性形变的动力学行为，能够在柱段环形筛条2-2a周围形成主动湍流区，并可有效解决传统筛网堵孔现象，利于分级；(3) In the active turbulence column section generating structure 2-2, the column section annular screen bar 2-2a has dynamic behaviors of different frequency vibrations, different periodic rotations and different degrees of elastic deformation, and can be used around the column section annular screen bar 2-2a It forms an active turbulence zone and can effectively solve the hole blocking phenomenon of traditional screens, which is beneficial to classification;
(4)由设有稀释补充水的被动湍流分级圆柱3和被动湍流分级圆锥4构成的二次强化分级，能够进一步优化煤泥水分级过程，提高分级效率。(4) The secondary enhanced classification consisting of a passive turbulence classification cylinder 3 and a passive turbulence classification cone 4 equipped with diluted supplementary water can further optimize the slime water classification process and improve the classification efficiency.
附图说明Description of drawings
下面结合附图对本发明作进一步的说明。The present invention will be further described below in conjunction with the accompanying drawings.
图1为本申请的主动和被动复合湍涡强化的煤泥分级设备；Figure 1 shows the active and passive composite turbulence-enhanced slime classification equipment of this application;
图2为本申请的主动和被动复合湍涡强化的煤泥分级设备的A-A剖视图；Figure 2 is an A-A cross-sectional view of the active and passive composite turbulence-enhanced slime classification equipment of the present application;
图3为主动湍流分级柱段的侧面剖面图；Figure 3 is a side cross-sectional view of the active turbulent flow classification column section;
图4为图3中B-B剖视图。 Figure 4 is a sectional view BB in Figure 3.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
在本发明的描述中，需要理解的是，术语“开孔”、“上”、“下”、“厚度”、“顶”、“中”、“长度”、“内”、“四周”等指示方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的组件或元件必须具有特定的方位，以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surroundings", etc. The indication of orientation or positional relationship is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. .
一种主动和被动复合湍涡多级强化的煤泥分级设备，如图1，用于煤泥高效分级，包括物料松散分层圆柱1，设在物料松散分层圆柱1上部的湍涡探测结构5，设在物料松散分层圆柱1下端的主动湍流分级柱段2，主动湍流分级柱段2下端与被动湍流分级圆柱3相连，被动湍流分级圆柱3下端连接被动湍流分级圆锥4。An active and passive compound turbulent vortex multi-stage enhanced coal slime classification equipment, as shown in Figure 1, is used for efficient coal slime classification, including a loose stratified material cylinder 1 and a turbulent vortex detection structure located on the upper part of the loose stratified material cylinder 1 5. The active turbulence classification column section 2 is located at the lower end of the material loose stratification cylinder 1. The lower end of the active turbulence classification column section 2 is connected to the passive turbulence classification cylinder 3. The lower end of the passive turbulence classification cylinder 3 is connected to the passive turbulence classification cone 4.
物料松散分层圆柱1由煤泥水入料口1-1、物料松散分层圆柱外壳1-2组成，主动湍流分级柱段2由主动湍流驱动电机2-1、主动湍流柱段发生结构2-2、柱段排料口2-3和主动湍流柱段外壳2-4组成，被动湍流分级圆柱3由稀释补充水入料口3-1、被动湍流分级圆柱外壳3-2组成，被动湍流分级圆锥4设有被动湍流分级圆锥外壳4-1、锥段排料口4-2，湍涡探测结构5设有湍流收集腔体5-1、湍涡探测管5-2和顶部排料口5-3组成。The material loose stratification cylinder 1 is composed of the coal slurry water inlet 1-1 and the material loose stratification cylinder shell 1-2. The active turbulence classification column section 2 is composed of an active turbulence driving motor 2-1 and an active turbulence column section generating structure 2- 2. The column section discharge port 2-3 is composed of the active turbulence column section shell 2-4. The passive turbulence classification cylinder 3 is composed of the dilution and supplementary water inlet 3-1 and the passive turbulence classification cylinder shell 3-2. The passive turbulence classification cylinder The cone 4 is provided with a passive turbulence classification cone shell 4-1 and a cone section discharge port 4-2. The turbulence detection structure 5 is provided with a turbulence collection cavity 5-1, a turbulence detection tube 5-2 and a top discharge port 5 -3 composition.
煤泥水入料口1-1在物料松散分层圆柱1左部，并与物料松散分层圆柱外壳1-2相切，煤泥水入料口1-1内径根据不同规格从10～65mm分布，物料松散分 层圆柱外壳1-2高度为煤泥水入料口1-1内径3-5倍，在该物料松散分层圆柱内，使得矿浆中的颗粒群充分松散，以为下一步的颗粒分级提供必要条件；主动湍流柱段发生结构2-2在主动湍流驱动电机2-1的驱动下在主动湍流分级柱段2内规律性的产生主动湍流涡旋，柱段排料口2-3自上而下均匀分布，柱段排料口2-3的数量根据具体需求可调(1～5个)，柱段排料口2-3内径为入料口1-1内径1～1.5倍，主动湍流柱段外壳2-4高度是物料松散分层圆柱外壳1-2高度的1.5～2倍；稀释补充水入料口3-1位于被动湍流分级圆柱3左上部，稀释补充水入料口3-1内径与煤泥水入料口1-1内径一致且同向，稀释补充水入料口3-1与被动湍流分级圆柱外壳3-2相切，被动湍流分级圆柱外壳3-2高度与物料松散分层圆柱外壳1-2高度一致；被动湍流分级圆锥4的锥角为10～30°可调，被动湍流分级圆锥外壳4-1高度为被动湍流分级圆柱外壳3-2高度的1～1.2倍，锥段排料口4-2内径为煤泥水入料口1-1内径0.25～0.5倍可调；湍流收集腔体5-1位于湍涡探测结构5顶部，湍流收集腔体5-1高度是顶部排料口5-3内径的1.5倍，湍涡探测管5-2插入深度覆盖主动湍流分级柱段2和被动湍流分级圆柱3，，顶部排料口5-3位于湍流收集腔体5-2右侧，顶部排料口5-3内径和柱段排料口2-3内径一致。The coal slurry water inlet 1-1 is on the left side of the material loose stratification cylinder 1 and is tangent to the material loose stratification cylinder shell 1-2. The inner diameter of the coal slurry water inlet 1-1 is distributed from 10 to 65 mm according to different specifications. loose material The height of the layered cylindrical shell 1-2 is 3-5 times the inner diameter of the coal slurry water inlet 1-1. In the loose layered cylinder of the material, the particle group in the slurry is fully loosened, providing necessary conditions for the next step of particle classification; The active turbulence column section generating structure 2-2 is driven by the active turbulence drive motor 2-1 to regularly generate active turbulence vortices in the active turbulence classification column section 2, and the column section discharge port 2-3 is uniform from top to bottom. Distribution, the number of column section discharge openings 2-3 can be adjusted according to specific needs (1 to 5), the inner diameter of column section discharge openings 2-3 is 1 to 1.5 times the inner diameter of feed opening 1-1, active turbulent column section The height of the shell 2-4 is 1.5 to 2 times the height of the loose layered cylindrical shell 1-2; the dilution and supplementary water inlet 3-1 is located at the upper left part of the passive turbulent classification cylinder 3, and the dilution and supplementary water inlet 3-1 has an inner diameter The inner diameter of the coal slurry water inlet 1-1 is consistent and in the same direction. The diluted supplementary water inlet 3-1 is tangent to the passive turbulent flow classification cylindrical shell 3-2. The height of the passive turbulence classification cylindrical shell 3-2 is consistent with the loose stratification of the material. The height of the cylindrical shell 1-2 is consistent; the cone angle of the passive turbulence classification cone 4 is adjustable from 10 to 30°, and the height of the passive turbulence classification cone shell 4-1 is 1 to 1.2 times the height of the passive turbulence classification cylindrical shell 3-2. The inner diameter of the section discharge port 4-2 is 0.25 to 0.5 times the inner diameter of the coal slurry water inlet 1-1; the turbulence collection cavity 5-1 is located at the top of the turbulence detection structure 5, and the height of the turbulence collection cavity 5-1 is the top The inner diameter of the discharge port 5-3 is 1.5 times. The insertion depth of the turbulence detection tube 5-2 covers the active turbulence classification column section 2 and the passive turbulence classification cylinder 3. The top discharge port 5-3 is located in the turbulence collection cavity 5-2. On the right side, the inner diameter of top discharge port 5-3 is the same as the inner diameter of column section discharge port 2-3.
物料松散分层圆柱1、主动湍流分级柱段2、被动湍流分级圆柱3、被动湍流分级圆锥4、湍涡探测结构5之间通过法兰盘灵活连接，便于拆卸；物料松散分层圆柱1内径、主动湍流分级柱段2内径、被动湍流分级圆柱3内径、被动湍流分级圆锥4大端内径和湍流收集腔体5-1内径一致，被动湍流分级圆锥4小端内径和锥段排料口4-2内径一致。Material loose stratification cylinder 1, active turbulent flow classification column section 2, passive turbulence classification cylinder 3, passive turbulence classification cone 4, and turbulence detection structure 5 are flexibly connected through flanges for easy disassembly; loose material stratification cylinder 1 inner diameter , the inner diameter of active turbulence classification column section 2, the inner diameter of passive turbulence classification cylinder 3, the inner diameter of the large end of passive turbulence classification cone 4 is consistent with the inner diameter of turbulence collection cavity 5-1, the inner diameter of the small end of passive turbulence classification cone 4 and the cone section discharge port 4 -2 The inner diameter is the same.
在一种实施方式中，可以利用主动湍流驱动电机带动主动湍流分级柱段2的震动，主动湍流驱动电机2-1为0～50Hz变频，主动湍流柱段发生结构2-2如 图2和图3所示，由若干均匀分布的柱段环形筛条2-2a构成，相邻筛条间距为0.074～1mm可调，筛条类型为倒梯形图2(a)、圆条型(图2(b))和齿轮型图2(c)等，筛条材质可以是不锈钢、普碳钢、聚氨酯等耐磨材料组成，主动湍流柱段发生结构2-2受主动湍流驱动电机2-1驱动作用具备不同频率振动、不同周期旋转和不同程度弹性形变的动力学行为，进而在柱段环形筛条2-2a附近形成主动湍流涡旋，为主动湍流分级柱段2中颗粒分级提供流场环境。In one embodiment, an active turbulence drive motor can be used to drive the vibration of the active turbulence classification column section 2. The active turbulence drive motor 2-1 has a frequency conversion of 0 to 50 Hz. The active turbulence column section generating structure 2-2 is as follows: As shown in Figures 2 and 3, it is composed of a number of evenly distributed column segment annular screen bars 2-2a. The spacing between adjacent screen bars is adjustable from 0.074 to 1mm. The screen bar types are inverted trapezoidal (Figure 2(a)) and round bar type. (Figure 2(b)) and gear type Figure 2(c), etc., the screen bar material can be made of stainless steel, plain carbon steel, polyurethane and other wear-resistant materials, the active turbulence column section generating structure 2-2 is driven by the active turbulence motor 2 -1 The driving action has dynamic behaviors of different frequency vibrations, different periodic rotations and different degrees of elastic deformation, thereby forming an active turbulent vortex near the annular screen bar 2-2a of the column section, providing a basis for particle classification in the active turbulent classification column section 2 Flow field environment.
图4为图3中B-B剖视图，图中右侧齿轮为主动轮7-1，其与主动湍流驱动电机2-1连接，并与左侧传动齿轮7-2外齿啮合。在传动齿轮7-2内侧有若干个从动轮7-3，它们与传动齿轮7-2内齿啮合，并且与主动湍流柱段发生结构2-2顶部连接。在主动湍流驱动电机2-1工作时带动与其连接的主动轮7-1顺时针转动，通过齿轮传动，与其啮合的传动齿轮7-2相应的逆时针转动。同时与传动齿轮7-2内齿啮合的若干从动轮7-3在传动齿轮7-2带动下逆时针转动，从而实现主动湍流涡旋作用。Figure 4 is a B-B cross-sectional view in Figure 3. The gear on the right side of the figure is the driving wheel 7-1, which is connected to the active turbulence drive motor 2-1 and meshes with the external teeth of the left transmission gear 7-2. There are several driven wheels 7-3 inside the transmission gear 7-2, which mesh with the internal teeth of the transmission gear 7-2 and are connected to the top of the active turbulence column section generating structure 2-2. When the active turbulence driving motor 2-1 is working, it drives the driving wheel 7-1 connected thereto to rotate clockwise, and through gear transmission, the transmission gear 7-2 meshed with it rotates counterclockwise correspondingly. At the same time, a number of driven wheels 7-3 meshing with the internal teeth of the transmission gear 7-2 rotate counterclockwise driven by the transmission gear 7-2, thereby realizing an active turbulent vortex effect.
同时，还可以通过设置激振器实现主动湍流分级柱段2的振动。如图3所示，为主动湍流分级柱段2的侧面剖面图，在主动湍流分级柱段2底部有激振板6-2与主动湍流柱段发生结构2-2底端接触，激振板6-2两侧有两个激振器6-1对称分布。在激振器6-1工作时产生的振动通过激振板6-2传递到主动湍流柱段发生结构2-2，使得主动湍流柱段发生结构2-2振动。At the same time, the vibration of the active turbulent flow classification column section 2 can also be achieved by setting up a vibrator. As shown in Figure 3, which is a side cross-sectional view of the active turbulence classification column section 2, there is an excitation plate 6-2 at the bottom of the active turbulence classification column section 2 that is in contact with the bottom end of the active turbulence column section generating structure 2-2. The excitation plate There are two exciters 6-1 symmetrically distributed on both sides of 6-2. The vibration generated when the exciter 6-1 is working is transmitted to the active turbulence column section generating structure 2-2 through the excitation plate 6-2, causing the active turbulence column section generating structure 2-2 to vibrate.
根据实际操作，也可以同时利用主动湍流驱动电机和激振器来实现主动湍流分级柱段2的振动。以煤泥水为例对本发明的工作过程如下：合适浓度的煤泥水由煤泥水入料口1-1以切向方式进入物料松散分层圆柱1，在重力和离心力的复合作用下，做螺旋向下运动，至主动湍流分级柱段2时，通过主动湍流驱动电机和/或激振器在主动湍流柱段发生结构2-2所产生的主动湍流涡旋作用下 一次分级，其中，驱动电机用于筛条的旋转；激振器用于筛条的振动，小于柱段环形筛条2-2a相邻筛条间距的细颗粒能够随流体透筛并经柱段排料口2-3流出形成细煤泥，柱段排料口2-3数量可根据需要确定，大于相邻筛条间距的粗颗粒继续向下运动，至被动湍流分级圆柱3时，由于稀释补充水从稀释补充水入料口3-1以一定速度给入，加大了矿浆切向运动速度，至被动湍流分级圆锥4时，由于圆锥结构导致流通面积不断减少，矿浆切向运动速度进一步增大，矿浆中煤泥进行二次强化分级，其中粗颗粒贴近被动湍流分级圆柱外壳3-2和被动湍流分级圆锥外壳4-1并向下运动，细颗粒则远离被动湍流分级圆柱外壳3-2和被动湍流分级圆锥外壳4-1且转而向上运动，并进入湍涡探测结构5下端湍涡探测管5-2中，经湍流收集腔体5-1从顶部排料口5-3流出。According to the actual operation, the active turbulence driving motor and the vibrator can also be used to realize the vibration of the active turbulence classification column section 2. Taking coal slime water as an example, the working process of the present invention is as follows: coal slime water of appropriate concentration enters the material loose layered cylinder 1 in a tangential manner from the coal slime water inlet 1-1, and spirally flows into the cylinder 1 under the combined action of gravity and centrifugal force. When the active turbulence classification column section 2 is reached, the active turbulence driving motor and/or vibrator are used to drive the active turbulence vortex generated by the active turbulence column section generating structure 2-2. Primary classification, in which the drive motor is used to rotate the screen bars; the exciter is used to vibrate the screen bars. Fine particles smaller than the distance between adjacent screen bars of the column segment annular screen bar 2-2a can pass through the screen with the fluid and be discharged through the column segment. Fine coal slurry flows out from material ports 2-3. The number of discharge ports 2-3 in the column section can be determined as needed. Coarse particles larger than the spacing between adjacent screen bars continue to move downward. When they reach the passive turbulent classification column 3, they are replenished due to dilution. Water is fed from the dilution and supplementary water inlet 3-1 at a certain speed, which increases the tangential movement speed of the slurry. When the passive turbulent flow classification cone 4 is reached, the flow area is continuously reduced due to the cone structure, and the tangential movement speed of the slurry further increases. Large, the coal slime in the slurry undergoes secondary enhanced classification, in which the coarse particles are close to the passive turbulence classification cylindrical shell 3-2 and the passive turbulence classification cone shell 4-1 and move downward, while the fine particles are away from the passive turbulence classification cylindrical shell 3-2 and the passive turbulence graded conical shell 4-1 and then moves upward, and enters the turbulence detection tube 5-2 at the lower end of the turbulence detection structure 5, and flows out from the top discharge port 5-3 through the turbulence collection cavity 5-1.
在本说明书的描述中，参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, reference to the terms "one embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the invention. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。 The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention.

Claims (9)

  1. 一种主动和被动复合湍涡多级强化的煤泥分级设备，包括物料松散分层圆柱(1)、设在所述物料松散分层圆柱上部的湍涡探测结构(5)和连接在物料松散分层圆柱下端的主动湍流分级柱段(2)，所述主动湍流分级柱段(2)下端与被动湍流分级圆柱(3)相连，所述被动湍流分级圆柱(3)下端连接被动湍流分级圆锥(4)；An active and passive compound turbulent vortex multi-stage enhanced slime classification equipment, including a loose material stratified cylinder (1), a turbulent vortex detection structure (5) located on the upper part of the loose material stratified cylinder, and a turbulent vortex detection structure (5) connected to the loose material stratified cylinder. There is an active turbulence classification column section (2) at the lower end of the layered cylinder. The lower end of the active turbulence classification column section (2) is connected to the passive turbulence classification cylinder (3). The lower end of the passive turbulence classification cylinder (3) is connected to the passive turbulence classification cone. (4);
    所述物料松散分层圆柱(1)的上部开设有煤泥水入料口(1-1)，所述主动湍流分级柱段(2)的内部转动连接有竖直布置的主动湍流柱段发生结构(2-2)，所述主动湍流分级柱段(2)的上端设有主动湍流驱动电机(2-1)，所述主动湍流驱动电机(2-1)驱动所述主动湍流柱段发生结构(2-2)振动；A coal slurry water inlet (1-1) is provided at the upper part of the material loose layering cylinder (1), and a vertically arranged active turbulence column section generating structure is rotatably connected to the interior of the active turbulent flow classification column section (2). (2-2), the upper end of the active turbulence classification column section (2) is provided with an active turbulence drive motor (2-1), and the active turbulence drive motor (2-1) drives the active turbulence column section generating structure (2-2) Vibration;
    所述湍涡探测结构(5)内部具有湍流收集腔体(5-1)，所述湍涡探测结构(5)的下端设有湍涡探测管(5-2)，所述湍涡探测管(5-2)的上端与所述湍流收集腔体(5-1)连通，所述湍涡探测管(5-2)的下端延伸到所述主动湍流分级柱段(2)中；The turbulence detection structure (5) has a turbulence collection cavity (5-1) inside, and a turbulence detection tube (5-2) is provided at the lower end of the turbulence detection structure (5). The turbulence detection tube The upper end of (5-2) is connected with the turbulence collection cavity (5-1), and the lower end of the turbulence detection tube (5-2) extends into the active turbulence classification column section (2);
    所述被动湍流分级圆柱(3)的上部开设有稀释补充水入料口(3-1)，所述被动湍流分级圆锥(4)的下端开设有锥段排料口(4-2)；所述主动湍流分级柱段(2)侧壁上开设有若干柱段排料口(2-3)。The upper part of the passive turbulence classification cylinder (3) is provided with a dilution and supplementary water inlet (3-1), and the lower end of the passive turbulence classification cone (4) is provided with a cone section discharge port (4-2); A number of column section discharge openings (2-3) are provided on the side wall of the active turbulent flow classification column section (2).
  2. 根据权利要求1所述的煤泥分级设备，其特征在于，所述被动湍流分级圆锥(4)的锥角为10～30°。The coal slime classification equipment according to claim 1, characterized in that the cone angle of the passive turbulent flow classification cone (4) is 10 to 30°.
  3. 根据权利要求1所述的煤泥分级设备，其特征在于，所述主动湍流柱段发生结构(2-2)包括多个筛条(2-2a)，多个所述筛条(2-2a)呈环形阵列布置。The coal slime classification equipment according to claim 1, characterized in that the active turbulence column section generating structure (2-2) includes a plurality of screen bars (2-2a), and a plurality of the screen bars (2-2a) ) are arranged in a circular array.
  4. 根据权利要求3所述的煤泥分级设备，其特征在于，所述筛条(2-2a)的材质为不锈钢、普碳钢或聚氨酯。 The coal slime classification equipment according to claim 3, characterized in that the material of the screen bar (2-2a) is stainless steel, plain carbon steel or polyurethane.
  5. 根据权利要求3所述的煤泥分级设备，其特征在于，所述筛条(2-2a)的横截面为梯形、圆条型或齿轮型。The coal slime classification equipment according to claim 3, characterized in that the cross section of the screen bar (2-2a) is trapezoidal, round bar type or gear type.
  6. 根据权利要求1所述的煤泥分级设备，其特征在于，所述稀释补充水入料口(3-1)内径与煤泥水入料口(1-1)内径一致且同向。The coal slime classification equipment according to claim 1, characterized in that the inner diameter of the dilution and supplementary water inlet (3-1) is consistent and in the same direction as the inner diameter of the coal slime water inlet (1-1).
  7. 根据权利要求1所述的煤泥分级设备，其特征在于，所述物料松散分层圆柱(1)与主动湍流分级柱段(2)的高度一致。The coal slime classification equipment according to claim 1, characterized in that the height of the loose layered material column (1) is consistent with that of the active turbulent flow classification column section (2).
  8. 根据权利要求1所述的煤泥分级设备，其特征在于，所述主动湍流驱动电机(2-1)通过齿轮传动带动主动湍流分级柱段(2)的转动。The coal slime classification equipment according to claim 1, characterized in that the active turbulence driving motor (2-1) drives the rotation of the active turbulence classification column section (2) through gear transmission.
  9. 根据权利要求1所述的煤泥分级设备，其特征在于，所述主动湍流分级柱段(2)的底部设置有激振板(6-2)，所述激振板(6-2)与主动湍流柱段发生结构(2-2)底端接触，所述激振板(6-2)与激振器(6-1)连接，两个激振器(6-1)对称设置于两侧，在激振器(6-1)工作时产生的振动通过激振板(6-2)传递到主动湍流柱段发生结构(2-2)，使得主动湍流柱段发生结构(2-2)振动。 The coal slime classification equipment according to claim 1, characterized in that an excitation plate (6-2) is provided at the bottom of the active turbulent flow classification column section (2), and the excitation plate (6-2) and The bottom end of the active turbulence column section generating structure (2-2) is in contact, the excitation plate (6-2) is connected to the exciter (6-1), and the two exciters (6-1) are symmetrically arranged on both sides. side, the vibration generated when the exciter (6-1) is working is transmitted to the active turbulence column section generating structure (2-2) through the excitation plate (6-2), so that the active turbulence column section generating structure (2-2 )vibration.
PCT/CN2023/100380 2022-07-14 2023-06-15 Active and passive composite turbulent vortex multi-stage enhanced coal slime classification apparatus WO2024012142A1 (en)

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