CN106378266A - Foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate - Google Patents

Foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate Download PDF

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Publication number
CN106378266A
CN106378266A CN201610936297.1A CN201610936297A CN106378266A CN 106378266 A CN106378266 A CN 106378266A CN 201610936297 A CN201610936297 A CN 201610936297A CN 106378266 A CN106378266 A CN 106378266A
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CN
China
Prior art keywords
foam
ore pulp
clear water
conduit
pulp
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201610936297.1A
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Chinese (zh)
Inventor
徐祥彬
郝福来
李健
张世镖
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Changchun Gold Research Institute
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Changchun Gold Research Institute
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 Changchun Gold Research Institute filed Critical Changchun Gold Research Institute
Priority to CN201610936297.1A priority Critical patent/CN106378266A/en
Publication of CN106378266A publication Critical patent/CN106378266A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B03D1/16Flotation machines with impellers; Subaeration machines
    • B03D1/20Flotation machines with impellers; Subaeration machines with internal air pumps

Abstract

The invention relates to a foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate, and belongs to foam treating devices and methods for flotation gold concentrate pretreatment. Only pulp under the surface of the pulp can flow to a microorganism oxidation reactor of the next level; an overflowing opening is formed above the surface of the pulp and used for guiding foam out of the oxidation reactor, and most foam below the overflowing opening enters a reactor of the next level after being degraded in the oxidation reactor; and a small amount of foam products which are not degraded in time are guided out from the overflowing opening, solid-liquid separation is conducted after deposition, and the foam products return to the flow path after being naturally degraded. The foam treating device and method have the beneficial effects that in each microorganism oxidation reactor, a pulp guide pipe stretching deep under the pulp surface is used for blocking foam, the foam flows to a predetermined position from the overflowing opening, the height of a foam layer is lowered through spraying of clear water, and the foam flows out of the overflowing opening in an accelerated mode; and the foam influence is avoided, separate treatment is achieved, and the gold recovery rate is increased.

Description

Foam treatment device in gold floatation concentrate microbiological oxidation pretreatment and method
Technical field
The invention belongs to the foam treatment device of gold floatation concentrate microbiological oxidation pretreating process and method, for realizing Ore pulp and foam flow to different predeterminated positions respectively.
Background technology
During microbiological oxidation to gold floatation concentrate ore pulp system be supply in microbiological oxidation reactor substantial amounts of Air is requisite.But, because gold floatation concentrate is how based on sulfide, belong to floatability mineral, in addition flotation Substantial amounts of floating agent can be remained in Gold Concentrate under Normal Pressure, when supplying air during microbiological oxidation, mineralization will be produced, and then Produce substantial amounts of gold floatation concentrate foam, this floatation of foam, in microbiological oxidation reactor ore pulp surface, flows with ore pulp suitable Stream and under, enter the pretreated operation of microbiological oxidation;When serious, the foam of generation can overflow from microbiological oxidation reactor Spill out, that is, " the emitting groove " being commonly called as, above-mentioned phenomenon can cause gold floatation concentrate microbiological oxidation effect to be deteriorated, after impact when occurring The high efficiente callback of continuous operation gold.At present, common treating method is:Gold floatation concentrate is carried out dry in the sun, flotation therein of volatilizing Medicament;Or carry out strengthening washup operation in the grinding process before gold floatation concentrate microbiological oxidation, remove floating agent.Before this Invention in introduce defoamer to decompose foam, which increase cost, and oxidation effectiveness can be impacted when consumption is big.
Content of the invention
The present invention provides foam treatment device and method in gold floatation concentrate microbiological oxidation pretreatment, to solve ore pulp The problem bad with foam separation.
The present invention adopts the technical scheme that:Microbiological oxidation reactor body is internally provided with stirring system, stirring system Air feed allotter is arranged at the bottom of system, and the upper side of body is provided with ore pulp and flows out conduit, and the upper side of body is higher than ore pulp Flow out and be provided with foam overflow conduit at conduit, have foam collection device below foam overflow conduit, the top of body is provided with Insert the clear water flusher to body interior.
What described ore pulp flowed out conduit enters mouth down, 0.5 to 0.8 meter below mineral syrup liquid.
Described clear water flusher is made up of vertical clear water spray line and guiding foam clear water pipe.
A kind of foam processing method in gold floatation concentrate microbiological oxidation pretreatment, comprises the following steps:
(1) ore pulp is to the mode of next stage movement:Conduit is flowed out to next stage using the ore pulp going deep into 0.5 to 0.8 meter under liquid level Oxidation reactor is derived, and makes the foam floating on ore pulp surface will not flow into next stage reactor, only ore pulp with ore pulp Subsurface ore pulp just can flow in next stage microbiological oxidation reactor;
(2) opening an overfall at 0.5 meter of ore pulp surface and be connected with foam overflow conduit, when foam floor height When degree exceedes overfall lower edge, in foam automatic oxidation reaction device body, foam collection device is exported to by foam overflow conduit In, realize ore pulp and foam flows to the purpose of different presets respectively;
(Three)When foam layer height continues to raise, by the clear water spray line in clear water flusher, anti-to microbiological oxidation The foam answering device ore pulp surface flotation sprays clear water, reduces foam layer height, makes foam be transformed into ore pulp;When foam layer height surpasses Cross on overfall along when, by clear water flusher guiding foam clear water pipe to froth bed spray clear water, guiding foam to overflow Head piece flows out, it is to avoid excessive foam has little time to flow out and " emitting groove " occurs.
The invention has the beneficial effects as follows:In microbiological oxidation reactor, it is deep into the ore pulp under mineral slurry level by setting Conduit stops foam, and foam flows to predeterminated position from overfall, then reduces foam layer height by spraying clear water, accelerate foam to Overfall flows out, it is to avoid foam affects, and realizes separately processing, improves gold recovery.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Microbiological oxidation reactor body 1 is internally provided with stirring system 6, and air feed allotter is arranged at the bottom of stirring system 6 7, the upper side of body is provided with ore pulp and flows out conduit 2, and the upper side of body is higher than to be provided with bubble at ore pulp outflow conduit 2 Foam overflow conduit 3, has foam collection device 5 below foam overflow conduit 3, the top of body be provided with insert clear to body interior Water flusher 4.
What described ore pulp flowed out conduit 2 enters mouth down, 0.5 to 0.8 meter below mineral syrup liquid.
Described clear water flusher 4 is made up of vertical sprinkling clear water pipe 401 and guiding foam clear water pipe 402.
Mode from ore pulp to next stage movement adopt lower deep mineral slurry level under 0.5 to 0.8 meter ore pulp flow out conduit 2 to Next stage oxidation reactor is derived, and makes the foam floating on ore pulp surface will not flow into next stage reactor with ore pulp, only The ore pulp having ore deposit liquid level bottom just can flow in next stage microbiological oxidation reactor;An overflow is being opened above mineral syrup liquid Mouthful, when froth bed be higher than this apart from when, derive in foam automatic oxidation reaction device, realize ore pulp and foam flow to respectively Bu Tong default The purpose of point.Most of foam less than overfall enters next stage reactor after degrading in oxidation reactor, has little time to drop A small amount of froth pulp of solution is derived through overfall, solid-liquid separation after deposition, Returning process after natural degradation.
A kind of foam processing method in gold floatation concentrate microbiological oxidation pretreatment, comprises the following steps:
(1) ore pulp is to the mode of next stage movement:Conduit 2 is flowed out using the ore pulp going deep into 0.5 to 0.8 meter under liquid level downward Stair oxidation reactor is derived, and makes the foam floating on ore pulp surface will not flow into next stage reactor with ore pulp, only The subsurface ore pulp of ore pulp just can flow in next stage microbiological oxidation reactor;
(2) opening an overfall at 0.5 meter of ore pulp surface and be connected with foam overflow conduit 3, when foam floor height When degree exceedes overfall lower edge, in foam automatic oxidation reaction device body 1, foam collection device is exported to by foam overflow conduit 3 In 5, realize ore pulp and foam flows to the purpose of different presets respectively;
(Three)When foam layer height continues to raise, by the clear water spray line 401 in clear water flusher 4, to microorganism oxygen The foam changing reactor ore pulp surface flotation sprays clear water, reduces foam layer height, makes foam be transformed into ore pulp;When foam floor height Degree exceed on overfall along when, by clear water flusher guiding foam clear water pipe 402 to froth bed spray clear water, guiding bubble Foam flows out to overfall, it is to avoid excessive foam has little time to flow out and " emitting groove " occurs.
Generally the ore pulp in microbiological oxidation reactor flows automatically to next level microbe oxygen with surface stream mode by outlet Change in reactor, the present invention flows out the reaction of conduit downward stair oxidation using the ore pulp being deep into 0.5 to 0.8 meter under liquid level down Device is derived, and so that the foam floating on ore pulp surface is retained in microbiological oxidation reactor, only the ore pulp ability of ore deposit liquid level bottom Can flow in next stage microbiological oxidation reactor.The purpose spraying clear water is exactly to reduce foam layer height, so that foam is transformed into Ore pulp, enters to accelerate foam to flow out to overfall by the impact of water simultaneously.

Claims (4)

1. the foam treatment device in a kind of gold floatation concentrate microbiological oxidation pretreatment, inside microbiological oxidation reactor body Be provided with stirring system, the bottom of stirring system have air feed allotter it is characterised in that:The upper side of body is provided with ore pulp Flow out conduit, the upper side of body is higher than to be provided with foam overflow conduit, below foam overflow conduit at ore pulp outflow conduit There is foam collection device, the top of body is provided with the clear water flusher inserted to body interior.
2. the foam treatment device in a kind of gold floatation concentrate microbiological oxidation pretreatment according to claim 1, it is special Levy and be:Described ore pulp flows out entering mouth down, being located at 0.5 to 0.8 meter below mineral syrup liquid of conduit.
3. the foam treatment device in a kind of gold floatation concentrate microbiological oxidation pretreatment according to claim 1, it is special Levy and be:Described clear water flusher is made up of vertical clear water spray line and guiding foam clear water pipe.
4. the foam processing method in a kind of gold floatation concentrate microbiological oxidation pretreatment is it is characterised in that comprise the following steps:
(1) ore pulp is to the mode of next stage movement:Conduit is flowed out to next stage using the ore pulp going deep into 0.5 to 0.8 meter under liquid level Oxidation reactor is derived, and makes the foam floating on ore pulp surface will not flow into next stage reactor, only ore pulp with ore pulp Subsurface ore pulp just can flow in next stage microbiological oxidation reactor;
(2) opening an overfall at 0.5 meter of ore pulp surface and be connected with foam overflow conduit, when foam floor height When degree exceedes overfall lower edge, in foam automatic oxidation reaction device body, foam collection device is exported to by foam overflow conduit In, realize ore pulp and foam flows to the purpose of different presets respectively;
(Three)When foam layer height continues to raise, by the clear water spray line in clear water flusher, anti-to microbiological oxidation The foam answering device ore pulp surface flotation sprays clear water, reduces foam layer height, makes foam be transformed into ore pulp;When foam layer height surpasses Cross on overfall along when, by clear water flusher guiding foam clear water pipe to froth bed spray clear water, guiding foam to overflow Head piece flows out, it is to avoid excessive foam has little time to flow out and " emitting groove " occurs.
CN201610936297.1A 2016-11-01 2016-11-01 Foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate Pending CN106378266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610936297.1A CN106378266A (en) 2016-11-01 2016-11-01 Foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610936297.1A CN106378266A (en) 2016-11-01 2016-11-01 Foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate

Publications (1)

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CN106378266A true CN106378266A (en) 2017-02-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1097357A (en) * 1993-06-10 1995-01-18 张怀信 Eliminate the method for flotation concentrate mineralized froth
CN1215758A (en) * 1998-01-25 1999-05-05 地矿部矿业生物工程研究中心 Method for bacteria preoxidation extraction of gold from refractory high-arsenic gold-ore and bacteria oxidation tank used
US20010002312A1 (en) * 1996-10-04 2001-05-31 Sharp James E. Rapid ferrous sulfate biooxidation
CN1387581A (en) * 1999-09-07 2002-12-25 比利顿知识产权有限公司 Bioleaching of sulphide minerals
CN2576722Y (en) * 2002-11-06 2003-10-01 山东天承生物金业股份有限公司 Bacteria oxygenation apparatus for difficult-to-sort metallurgical preparation concentrate
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CN101961684A (en) * 2010-07-16 2011-02-02 曹树营 Overflow type enhanced tailing jet flow flotation device
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CN102335525A (en) * 2010-07-19 2012-02-01 兆星科技有限公司 Defoaming apparatus and defoaming method
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CN203043640U (en) * 2012-11-22 2013-07-10 三明市永耀涂料有限公司 Water-borne wood paint defoaming equipment capable of controlling automatically
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* Cited by examiner, † Cited by third party
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US20010002312A1 (en) * 1996-10-04 2001-05-31 Sharp James E. Rapid ferrous sulfate biooxidation
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CN2576722Y (en) * 2002-11-06 2003-10-01 山东天承生物金业股份有限公司 Bacteria oxygenation apparatus for difficult-to-sort metallurgical preparation concentrate
CN200957310Y (en) * 2006-09-15 2007-10-10 陈元刚 Foam eliminator
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CN203043640U (en) * 2012-11-22 2013-07-10 三明市永耀涂料有限公司 Water-borne wood paint defoaming equipment capable of controlling automatically
CN203335388U (en) * 2013-07-10 2013-12-11 长沙有色冶金设计研究院有限公司 Self-defoaming anti-sedimentating pumping system
CN203923321U (en) * 2014-06-08 2014-11-05 江西三和金业有限公司 The multidirectional circulating biological oxidation trough of a kind of circulation type treating refractory As-containing gold ore
CN104561543A (en) * 2015-01-20 2015-04-29 长春黄金研究院 Axial flow biological oxidation reactor with bundling pipes

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Application publication date: 20170208