CN108480057A - A kind of flotation pulp pretreatment unit - Google Patents

A kind of flotation pulp pretreatment unit Download PDF

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Publication number
CN108480057A
CN108480057A CN201810413618.9A CN201810413618A CN108480057A CN 108480057 A CN108480057 A CN 108480057A CN 201810413618 A CN201810413618 A CN 201810413618A CN 108480057 A CN108480057 A CN 108480057A
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CN
China
Prior art keywords
ore pulp
bucket
shaft sleeve
stirring shaft
stirring
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CN201810413618.9A
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Chinese (zh)
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CN108480057B (en
Inventor
邓小伟
邢宝林
史长亮
路阳
程敢
张传祥
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Henan University of Technology
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Henan University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/14Flotation machines

Abstract

The invention discloses a kind of flotation pulp pretreatment units, it is characterised in that:It includes that bottom is provided with ore pulp underflow opening(12)Ore pulp bucket, from the bottom to top in a manner of with ore pulp bucket coaxial line be mounted on ore pulp bucket in stirring blade(8), stirring shaft sleeve(5), in stirring shaft sleeve(5)On be provided with extend to outside ore pulp bucket for stirring shaft sleeve in add medicament stirring chemical feed pipe(9), the upper lateral part of ore pulp bucket is provided with ore pulp overflow launder(10)And ore pulp discharge port(11), it is equipped with ore pulp material inlet around ore pulp bucket outer wall(1), emulsification dosing mouth(3)And several isocons(4)Ring pipe(2), with isocon(4)The nozzle being connected is exported respectively tangentially to stretch into ore pulp bucket.It the advantage is that:Reagent consumption amount is reduced, agent molecule and mineral grain adsorption effect are improved, reduces unavoidable ion in flotation;Equipment volume is small, simple in structure, convenient for safeguarding.

Description

A kind of flotation pulp pretreatment unit
Technical field
The invention belongs to mineral floating machinery equipment technical fields, particularly relate to a kind of flotation pulp pretreatment dress It sets.
Background technology
Flotation is one of main method of sorting mineral, and the process of sizing mixing is to realize the premise of mineral efficient flotation separation.It passes The ore pulp set-up procedure of system is, to realize that mineral grain is fully dispersed, to be convenient for mine by carrying out stirring of sizing mixing in mixing barrel Slurry conveying;It realizes agent molecule dispersion and is adsorbed in mineral particle surface;The effects that adjusting floatation concentration.It can by the effect of sizing mixing To be adsorbed in solid particles surface by different suction-operated collecting agents and inhibitor, remaining regulator and foaming agent are fully and mine Slurries body mixes.However, most of floating agent is larger molecular organics, solubility and dispersibility are poor.In production practices, letter Single stirring of sizing mixing often results in agent molecule and cannot adequately be adsorbed in mineral particle surface, and caused by medicament it is largely unrestrained Take, unavoidable ion is made to increase, flotation solution chemistry deteriorates, and flotation efficiency is made to reduce.Therefore, the fine or not of dosing of sizing mixing divides flotation From playing a crucial role, efficient ore pulp pretreatment unit is to improve FLOTATION SEPARATION effect, and reducing reagent consumption most has One of means of effect.
Invention content
The purpose of the present invention exactly for the above-mentioned prior art present in because size mixing stir it is insufficient, caused by flotation One is provided in place of the deficiencies of reagent consumption is big, flotation efficiency is low, sorting process is complicated, cost is higher, environmental protection pressure is big Kind strengthens a kind of efficient flotation separation ore pulp pretreatment unit of suction-operated based on step.The present invention passes through jet stream, mixed on low speed, " W The step of type stream " strengthens suction-operated, improves agent molecule and mineral grain adsorption effect, improves flotation efficiency, equipment volume It is small, it is simple in structure, convenient for safeguarding.
The purpose of the present invention can be achieved through the following technical solutions:
The flotation pulp pretreatment unit of the present invention includes ore pulp bucket that bottom is provided with ore pulp underflow opening, from the bottom to top with mine The mode of slurry bucket coaxial line is mounted on stirring blade, stirring shaft sleeve in ore pulp bucket, and extension is provided on stirring shaft sleeve The stirring chemical feed pipe for adding medicament into stirring shaft sleeve outside to ore pulp bucket, ore pulp is provided in the upper lateral part of ore pulp bucket Overflow launder and ore pulp discharge port, around ore pulp bucket outer wall be equipped with ore pulp material inlet, emulsification dosing mouth and several The ring pipe of isocon, the nozzle being connected with isocon outlet is respectively tangentially to stretch into ore pulp bucket.
Heretofore described stirring shaft sleeve is suspended in below the upper cover body of ore pulp bucket, and is uniformly divided on stirring shaft sleeve Several circular through holes of cloth;The stirring blade by be installed in stirring shaft sleeve and the agitating shaft that extends straight up with The motor driven systems at the top of ore pulp bucket are arranged to be combined, and in a suspended manner below setting stirring shaft sleeve.
The square structure in cross section of heretofore described ring pipe is arranged around the ring pipe in a manner of uniformly distributed There are six isocons;The ore pulp bottom of the barrel is 45 degree of centrums, and is equipped with maintenance underflow control valve, and staving passes through connector It is fixedly mounted in rack.
The tangential approach axis of nozzle being connected with isocon outlet in the present invention with stirring blade rotation direction on the contrary, The high-speed jet that nozzle generates, stirring blade generate negative pressure sucking effect with sleeve, and opposite direction makes two fluids form " W Type stream " increases the secondary mixing of ore pulp.
Heretofore described feeding mouth, ring pipe are fixed in horizontal direction below pretreatment unit ore pulp bucket at 600mm, Ring pipe to ensure that the nozzle of isocon can tangentially pass in and out staving, and can realize maintenance and replacement apart from staving 50mm.
The working principle and beneficial effect of the present invention is as follows:
Raw ore slurry enters ring pipe, first kind floating agent by ore pulp material inlet(Such as regulator, collecting agent or indissoluble Property, difficult dispersions etc.)Also entered in ring pipe by emulsifying dosing mouth, first kind medicament carries out just with ore pulp in ring pipe Step mixing.Preliminary mixed ore pulp is tangentially entered in ore pulp bucket, herein mistake from the nozzle of 6 isocons with high-speed jet Cheng Zhong, first kind medicament is dispersed into emulsified state, and agent molecule is adsorbed in mineral surfaces under high action of turbulent flow(Pass through medicament High-speed jet effect with ore pulp is realized slightly solubility reagent emulsifying and is efficiently adhered in mineral particle surface).At the same time pass through Stirring chemical feed pipe adds the second class medicament into stirring shaft sleeve(Such as foaming agent, soluble dispersions etc.), motor driving System drive agitating shaft realizes the second class medicament and ore pulp mixing and absorption with 300r/min rotating speeds, and ore pulp is made to be in suspended state, Fully after dissociation, granularity and concentration meet the raw ore slurry of flotation requirement.Pretreated ore pulp is discharged by overflow launder from ore pulp Mouth outflow.The ore pulp underflow opening of ore pulp bottom of the barrel setting, in case discharge, maintenance down.
In above-mentioned efficient flotation separation ore pulp pretreatment unit, the ore pulp of absorption and particle surface after high-speed jet emulsifies By stirring shaft sleeve, motor driving stirring blade realizes the suspension of ore pulp, and forms " W " type stream in staving, soluble point The second scattered class medicament is added in stirring shaft sleeve by stirring chemical feed pipe at 75cm height, and second is realized under low action of turbulent flow Mixing, absorption and the suspension of class medicament.
In conclusion the invention has the advantages that:Reagent consumption amount is reduced, improves agent molecule and is imitated with mineral grain absorption Fruit reduces unavoidable ion in flotation;Equipment volume is small, simple in structure, convenient for safeguarding.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is isocon structural schematic diagram.
Specific implementation mode
The present invention is below with reference to embodiment(Attached drawing)It is further described:
As shown in Figure 1, 2, flotation pulp pretreatment unit of the invention includes the ore pulp bucket that bottom is provided with ore pulp underflow opening 12, Stirring blade 8, the stirring shaft sleeve 5 being mounted in a manner of with ore pulp bucket coaxial line from the bottom to top in ore pulp bucket, in agitating shaft The stirring chemical feed pipe 9 for adding medicament into stirring shaft sleeve extended to outside ore pulp bucket, the stirring are provided on sleeve 5 Shaft sleeve 5 is suspended in below the upper cover body of ore pulp bucket, and is uniformly distributed several circular through holes on stirring shaft sleeve 5;It is described Stirring blade 8 is by being installed on the agitating shaft 7 extended in stirring shaft sleeve 5 and straight up and being arranged at the top of ore pulp bucket Motor driven systems 6 are combined, and 5 lower section of setting stirring shaft sleeve in a suspended manner;The upper lateral part of ore pulp bucket is provided with mine Starch overflow launder 10 and ore pulp discharge port 11, around ore pulp bucket outer wall be equipped with ore pulp material inlet 1, emulsification dosing mouth 3 with And the ring pipe 2 of six isocons 4, the nozzle being connected is exported respectively tangentially to stretch into ore pulp bucket with isocon 4;The ring The square structure in cross section of shape pipe 2, six isocons 4 are arranged around the ring pipe 2 in a manner of uniformly distributed;The ore pulp Bottom of the barrel is 45 degree of centrums, and is equipped with maintenance underflow control valve, and staving is fixedly mounted on by connector in rack.
The structure of the isocon 4 is shown in Figure 3.
The tangential approach axis and 8 rotation direction phase of stirring blade of the nozzle being connected are exported in the present invention with isocon 4 Instead, the high-speed jet that nozzle generates, stirring blade 8 generate negative pressure sucking effect with sleeve 5, and opposite direction makes two fluids shape At " W types stream ", the secondary mixing of ore pulp is increased.
Heretofore described feeding mouth 1, ring pipe 2 are fixed on 600mm below pretreatment unit ore pulp bucket in horizontal direction Place, ring pipe to ensure that the nozzle of isocon can tangentially pass in and out staving, and can realize maintenance and replacement apart from staving 50mm.
Heretofore described motor driven systems 6 drive agitating shaft 7 with 300r/min rotating speeds realize the second class medicament with Ore pulp mixing and absorption, and ore pulp is made to be in suspended state.Material inlet 1 is described by inside nominal diameter DN80 flanged joint conveying pipelines The ring pipe cross section length of side is the square of 80mm.The inside nominal diameter DN25 of isocon, jet hole internal diameter are 15mm, isocon 4 nozzle is respectively tangentially to stretch into 20mm in ore pulp bucket.
Ore pulp pretreatment unit cylinder reference diameter 1000mm, the high 1280mm of the present invention, ore pulp bucket is interior to be consolidated by cantilever Surely there is the stirring shaft sleeve 5 of a diameter of 450mm, 100mm round holes are uniformly distributed on sleeve, percent opening 38% is fixed along sleeve 700mm long, 25mm diameter stir chemical feed pipe 9.
The present invention drives three blade and blades rotation using 3kw motors by the agitating shaft 7 of belt pulley deceleration 1000mm long It is dynamic, rotating speed 300r/min.This rotating speed so that the second class medicament easily disperses and postorder medicament realizes that low speed is mixed with ore pulp Close absorption.
The jet stream that the nozzle of isocon 4 generates in the present invention, stirring shaft sleeve 5, agitating shaft 7, stirring blade 8 generate low Fast stirring system, the secondary immixture that " W types stream " is formed are respectively vertical medicine from difficulty to easy and sequence to solubility Dosage form is at " step reinforcing suction-operated ".
The main characteristic of the invention lies in that:
(1)It is emulsified by high-speed jet through preliminary mixed indissoluble, difficult dispersions and ore pulp, realizes efficient absorption.
(2)Ease of solubility, dispersions realize low turbulent mixture absorption, and realize that ore pulp suspends by bottom " W " type stream.
(3)It adsorbs complexity different medicament and the pretreatment of efficient flotation separation ore pulp is realized by step schedule of reinforcement.

Claims (5)

1. a kind of flotation pulp pretreatment unit, it is characterised in that:It includes that bottom is provided with ore pulp underflow opening(12)Ore pulp Bucket, the stirring blade being mounted in a manner of with ore pulp bucket coaxial line from the bottom to top in ore pulp bucket(8), stirring shaft sleeve(5), Stir shaft sleeve(5)On be provided with extend to outside ore pulp bucket for stirring shaft sleeve in add medicament stirring chemical feed pipe (9), the upper lateral part of ore pulp bucket is provided with ore pulp overflow launder(10)And ore pulp discharge port(11), around ore pulp bucket outer wall installation Have and carries ore pulp material inlet(1), emulsification dosing mouth(3)And several isocons(4)Ring pipe(2), with isocon(4)Go out The nozzle that mouth is connected is respectively tangentially to stretch into ore pulp bucket.
2. flotation pulp pretreatment unit according to claim 1, it is characterised in that:The stirring shaft sleeve(5)Suspention Below the upper cover body of ore pulp bucket, and in stirring shaft sleeve(5)On be uniformly distributed several circular through holes;The stirring blade (8)By being installed on stirring shaft sleeve(5)Agitating shaft that is interior and extending straight up(7)With the electricity being arranged at the top of ore pulp bucket Machine drive system(6)It is combined, and setting stirring shaft sleeve in a suspended manner(5)Lower section.
3. flotation pulp pretreatment unit according to claim 1, it is characterised in that:The ring pipe(2)Cross section Square structure, around the ring pipe(2)Isocon there are six being arranged in a manner of uniformly distributed(4).
4. flotation pulp pretreatment unit according to claim 1, it is characterised in that:The ore pulp bottom of the barrel is 45 degree of vertebras Body, and maintenance underflow control valve is installed, staving is fixedly mounted on by connector in rack.
5. flotation pulp pretreatment unit according to claim 1, it is characterised in that:With isocon(4)Outlet is connected Nozzle tangential approach axis and stirring blade(8)Rotation direction is on the contrary, the high-speed jet that nozzle generates.
CN201810413618.9A 2018-05-03 2018-05-03 flotation pulp preprocessing device Active CN108480057B (en)

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Application Number Priority Date Filing Date Title
CN201810413618.9A CN108480057B (en) 2018-05-03 2018-05-03 flotation pulp preprocessing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810413618.9A CN108480057B (en) 2018-05-03 2018-05-03 flotation pulp preprocessing device

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CN108480057A true CN108480057A (en) 2018-09-04
CN108480057B CN108480057B (en) 2019-12-13

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431286A (en) * 1994-01-06 1995-07-11 Inco Limited Recirculating column flotation apparatus
CN1324270A (en) * 1998-11-04 2001-11-28 通用信号公司 Mixing system for separation of materials by flotation
CN201244464Y (en) * 2008-07-22 2009-05-27 江西稀有稀土金属钨业集团有限公司 Agitated tank
CN102458626A (en) * 2009-04-29 2012-05-16 Amt国际有限公司 Vapor distributor for gas-liquid contacting columns
CN202823235U (en) * 2012-09-28 2013-03-27 宋成文 Slurry negative-pressure sorting homogenizer
JP2015066503A (en) * 2013-09-30 2015-04-13 大日本印刷株式会社 Agitating device and agitating method
CN204320459U (en) * 2014-12-09 2015-05-13 中国矿业大学 A kind of ore pulp pretreatment system of intensified Daqu medicament dispersion
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
CN205164634U (en) * 2015-11-26 2016-04-20 深圳市瑞成世代实业有限公司 Accurate slurrying device of coal
CN107020041A (en) * 2016-01-29 2017-08-08 上海戴沃机械科技有限公司 A kind of new mine product stirs barrel

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431286A (en) * 1994-01-06 1995-07-11 Inco Limited Recirculating column flotation apparatus
CN1324270A (en) * 1998-11-04 2001-11-28 通用信号公司 Mixing system for separation of materials by flotation
CN201244464Y (en) * 2008-07-22 2009-05-27 江西稀有稀土金属钨业集团有限公司 Agitated tank
CN102458626A (en) * 2009-04-29 2012-05-16 Amt国际有限公司 Vapor distributor for gas-liquid contacting columns
CN202823235U (en) * 2012-09-28 2013-03-27 宋成文 Slurry negative-pressure sorting homogenizer
JP2015066503A (en) * 2013-09-30 2015-04-13 大日本印刷株式会社 Agitating device and agitating method
CN204320459U (en) * 2014-12-09 2015-05-13 中国矿业大学 A kind of ore pulp pretreatment system of intensified Daqu medicament dispersion
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
CN205164634U (en) * 2015-11-26 2016-04-20 深圳市瑞成世代实业有限公司 Accurate slurrying device of coal
CN107020041A (en) * 2016-01-29 2017-08-08 上海戴沃机械科技有限公司 A kind of new mine product stirs barrel

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