CN202246787U - Biological column leaching device - Google Patents

Biological column leaching device Download PDF

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Publication number
CN202246787U
CN202246787U CN2011203362129U CN201120336212U CN202246787U CN 202246787 U CN202246787 U CN 202246787U CN 2011203362129 U CN2011203362129 U CN 2011203362129U CN 201120336212 U CN201120336212 U CN 201120336212U CN 202246787 U CN202246787 U CN 202246787U
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China
Prior art keywords
inner core
cylindrical
external jacket
utility
model
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Withdrawn - After Issue
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CN2011203362129U
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Chinese (zh)
Inventor
郑春丽
税刘杨
吴红娟
王建英
柳建设
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Inner Mongolia University of Science and Technology
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Inner Mongolia University of Science and Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

The utility model relates to a biological column leaching device for leaching metal in ores and belongs to biohydrometallurgy mechanical equipment. The lower part of an outer clamping sleeve of the biological column leaching device provided by the utility model is provided with a support; the bottom of the outer clamping sleeve is provided with an air inlet, a material discharging port and a sampling port; a base plate is fixedly installed on the support, and is provided with a ventilation hole; the ventilation hole is provided with a cylindrical ventilation pipe the top of which is closed; the pipe wall of the cylindrical ventilation pipe is provided with small holes; the base plate of an inner cylinder is provided with a through hole; the inner cylinder is arranged in the outer clamping sleeve; the cylindrical ventilation pipe passes through the through hole and is arranged in the inner cylinder; the top of the inner cylinder is provided with an end cover; the top of the end cover is provided with an opening; and the inner cylinder and the end cover are fixedly connected through a bolt. According to the utility model, the ventilation quantity in a liquid is increased through the cylindrical ventilation pipe, so that the introduced gas can be better distributed in ore pulp, and the microganism growth and metabolism capability is improved, thus the ore pulp utilization ratio is improved. The biological column leaching device provided by the utility model has the advantages of simple structure, uniform solid and liquid mixture, full ventilation dissolution, less blocking possibility for the ore pulp and the like.

Description

Biological post bath unit
Technical field
The utility model relates to a kind of biological post bath unit, is used for the leaching of ore metal, belongs to the biological metallurgy mechanical means.
Background technology
The distinguishing feature of Mineral Resources in China is that low, complicated, the hard to manage and middle-size and small-size ore deposit of grade is in the majority, and traditional dressing and smelting process is difficult to carry out economy, green, extracts effectively." national medium-term and long-term scientific and technical development program strategic research " pointed out " Mineral Resources in China is in short supply, and situation is serious ".Solve Mineral Resources in China problem in short supply, just must the efficient new technology of utilizing of development resource.
Research and production practice both at home and abroad show; Compare traditional metallurgical technology; The biological metallurgy technology demonstrates powerful advantages, and in the development and use of low-grade, complicated, unmanageable Mineral resources, biological metallurgy has low cost, short flow process, pollutes advantages such as little; Become the cutting edge technology of 21 century world's mineral extraction, have broad application prospects.
That is that all right is ripe for technical application among this development, and have many weak points: single bacterium oxidation capacity that one of which, biological metallurgy are used has not had obvious raising, needs to optimize bacterial growth condition equal angles and improve whole bacterial oxidation ability from promoting bacterial biomass; Its two, high-grade ore is biological to leach that the bio-reactor ubiquity shearing force of industrial application is big, the pair cell damage is serious, pulp density is low causes the device processes ability not high.
Post bath unit in practical application is commonly the jar of vertical barrel type at present, and the breather device is simple, and ore pulp mixes inhomogeneous, causes leaching effect bad, the not high shortcoming of efficient.
Therefore, the high-performance bio of exploitation with efficient mixed performance and good oxygen mass transfer coefficients leaches that reactor drum is used to increase leaching yield, shortening leaching cycle, reducing production costs just seems particularly important.
Leach in the device in prior biological; All there is certain weak point; Such as the multiple guide shell gas circulating bioreactor bacteria ore leaching of Lin Jianqun etc. with soak the ore deposit bacterium and cultivate (the patent No.: 200610070171.7); Pay attention to soaking the effect of ventilating in the process of ore deposit, utilize ventilation to reach the purpose of stirring.But in soaking the ore deposit process, when ventilation was excessive, the shearing force that ventilation produces was very big to the growth metabolism influence of soaking the ore deposit bacterium; And a kind of microbial column type leaching reactor of Zhou Hongbo etc. (patent No.: 200910310522.0) pay attention to control and circulation to the reaction conditions in the reaction process, make the production cost that soaks the ore deposit raise; And a kind of microbial leaching device of Huo Qiang etc. (patent No.: 200720169742.2) pay attention to soak in the reactor drum circulation of bacterium liquid, to the requirement of ventilation with utilize not high.
The utility model content
The purpose of the utility model is to provide a kind of can make solid-liquid thorough mixing more, improves the bioleaching device of metal leaching rate.
Technical solution:
The utility model comprises: external jacket, inner core, and the external jacket bottom is provided with bearing, and the bottom is provided with inlet mouth, drain hole and thief hole; Be installed with base plate on the bearing, base plate is provided with ventilating pit, and ventilating pit is provided with cylindrical ventpipe; Cylindrical ventpipe top seal, tube wall is provided with aperture, and the base plate of inner core is provided with through hole; Inner core places in the external jacket, and cylindrical ventpipe passes through hole and places in the inner core, and the inner core top is provided with end cap; The end cap top is provided with opening, and inner core is connected through bolt with end cap.
Said external jacket is cylindrical tubular.
Said external jacket bottom is the spherical end.
The contact position of said external jacket top and inner core is provided with seal ring, and inner core can slide up and down along external jacket.
Said external jacket inwall is provided with secondary bearing.
Said secondary bearing is provided with spring.
The utility model adopts inside and outside double-jacket, and certain hour utilizes mechanical force to promote inner core at interval, makes ore pulp partly flow into external jacket and carries out the mixing of secondary ore pulp, increases the solid-liquid contact area with this.The utility model also increases the air flow in the liquid through cylindrical ventpipe, and the gas that helps feeding is distributed in the ore pulp better, improves the microorganism growth metabolic capacity, thereby improves the utilization ratio of ore pulp.The utility model is than the conventional post bath unit, have simple in structure, solid-liquid mixes, ventilate dissolving fully, advantages such as ore pulp prevented from caking.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the vertical view at the A-A place of the utility model Fig. 1;
Fig. 3 the utility model B place enlarged view;
The cylindrical ventpipe enlarged diagram of Fig. 4 the utility model.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model is applicable to that the biology of various metals in the biological metallurgy leaches, and this device comprises three main parts, external jacket 5, inner core 8 and cylindrical ventpipe 7.
External jacket 5 is cylindrical tubular, and external jacket 5 bottoms are the spherical end 6, and circular thief hole 12, inlet mouth 13, drain hole 16 are arranged at bottom, the spherical ends 6; The contact position of external jacket 5 tops and inner core 8 is provided with seal ring, and inner core 8 can slide up and down along external jacket 5, and bearing 11 is arranged at top, the spherical ends 6; Bearing 11 is used to support the inner core 8 before promoting for the first time; Fixed base plate 14 is installed on the bearing 11, and base plate 14 has ventilating pit, and ventilating pit is provided with cylindrical ventpipe 7; Cylindrical ventpipe 7 top seals, tube wall is provided with aperture 17.
Inner core 8 is cylindrical tubular, and the base plate 9 of inner core 8 is provided with through hole 10, and ore pulp flowed down when through hole 10 was used for inner core 8 liftings.Inner core 8 places in the external jacket 5, and cylindrical ventpipe 7 passes through hole 10 and places in the inner core 8, and inner core 8 tops are provided with spherical end cap 2, and spherical end cap 2 tops are provided with opening 1, and opening 1 is used for the adding of exhaust and bacterium liquid.Inner core 8 is fixedly connected with the bolt 3 of spherical end cap 2 through the band hook, and the hook on the bolt 3 of band hook is used for the lifting of inner core 8.Inner core 8 walls are provided with the secondary bearing 15 that can stretch of band spring, place inner core 8 when being used for promoting inner core 8 at every turn.Before inner core 8 promotes for the first time; Inner core 8 bottoms are placed on the bearing 11 of external jacket 5 bottoms, later every lifting once, inner core 8 is placed on being positioned on the secondary bearing 15 on the external jacket wall of ejection; Ore pulp is flowed down from the aperture of inner core 8 bottoms, reach and stir and the purpose of mixing an ore pulp.
Cylindrical ventpipe 7 openings communicated with the spherical end 6 of external jacket, and the opening that makes gas arrive base plate 14 from the spherical end 6 gets into cylindrical ventpipe 7 again, finally is distributed among the ore pulp.What traditional sphere ventilation sparger that is arranged in the leaching reactor bottom existed mainly is that problem is: have highdensity solid mineral soaking used being mostly in ore deposit; In the process that leaches; Ore is because the effect of gravity; Compacting easily, caking make mikrobe be difficult to growth, metabolism in ore pulp, thereby influence leaching effect.The cylindrical ventpipe 7 that the utility model adopts can be distributed in ventilation in the ore pulp better, can avoid the generation of above-mentioned situation effectively.
The device of the utility model is processed by the acid and alkali-resistance corrosion-resistant material, installs changeablely, is used for breadboard packaged unit and can adopts manufacturings such as synthetic glass or speciality plastics, and large-scale plant can adopt the stainless material manufacturing through special processing.
This device forms the effect of similar stirring through the mutual motion of inside and outside chuck, reaches the well-mixed purpose of ore pulp; Through the effect of cylindrical ventpipe, make the required ventilation of growth metabolism of thalline meet the requirements of level, and ventilation can be on certain degree mixed ore pulp once more, reduce the compacting, caking of ore pulp etc.Reach the increase leaching yield through changing the microbial growth environmental aspect, shorten the purpose of production cycle.
The utility model practical implementation process is following:
After the utility model carries out the high-temperature steam sterilization to device; Under aseptic condition, open the spherical end cap 2 of inner core 8; The ore that adds certain grain size; Inner core 8 loam cakes and inner core cylindrical part are sealed to prevent microbiological contamination; With pump a certain amount of bacterium liquid of finite concentration is pumped into the inner core 8 from opening 1 again, bacterium liquid is mixed with ore; The temperature of setting device, PH make device be in the metabolic environmental optima of microorganism growth; After reaction for some time inner core 8 liftings once are put on first secondary bearing 15; Again inner core 8 liftings once are put on the next secondary bearing 15 after reacting for some time again; Promote so repeatedly, up to rising on last secondary bearing 15 behind the reaction certain hour, reaction finishes; This moment, ore pulp was positioned at external jacket 5 fully, opened external jacket bottom drain hole 16, emitted the extraction that ore pulp is used for follow-up metal; Once soak all processes in ore deposit thereby accomplish.
Introduce a kind of instance of laboratory applications the utility model below:
The device TV is 50L, and the work loading amount is 35L; Device external jacket column part height is 1000mm, and diameter is 300mm; Device inner core column part height is 1000mm, and diameter is 260mm.
Gold mine is husky: granularity is 200 orders, and Gold Content is 46g/t.
Bacterial classification is had a liking for the ferrous thiobacillus of acid oxidase (Acidithiobacillus ferrooxidans).
Strain preparation and inoculation are had a liking for the ferrous thiobacillus of acid oxidase (Acidithiobaci1lus ferrooxidans) and are cultivated the improved 9K substratum of employing, and 500ml triangular flask liquid amount is 200ml; 30 ℃, PH is 2.0, and shaking table is 160r/min; Be cultured to logarithmic phase; Inoculation, inoculum size is 8%, from the charging opening adding inner core of inner core.
Improved 9K substratum: (NH 4) 2SO 43g, KCl 0.1g, K 2HPO 40.5g, MgSO 4H 2O 0.5g, 0.01g, Ca (NO 3) 20.01g, zero(ppm) water 1000mL, pH 2.0.On the basis of improved 9K substratum, add ferrous sulfate 44.2g/L.
Soak the ore deposit condition: 8% pulp density, PH are 2.0, and temperature is 30 ℃, and air flow is 1.8m 3/ h adopts the single-stage batch operation mode.
Sampling regularly detects bacterium liquid, with the content of atomic fluorescence spectrum mensuration arsenic, with the content of barium sulfate turbidimetry mensuration sulfate radical, measures Fe with dichromate titration 2+Oxidation ratio, survey the concentration of thalline with ultraviolet spectrophotometer.
Be 30d reaction time, is reacted to the 5th day and promotes an inner core, is reacted to the 10th day and promotes an inner core, is reacted to the 20th day and promotes an inner core.Recording arsenic-removing rate behind the 30d is 75.6%.

Claims (6)

1. biological post bath unit is characterized in that, comprising: external jacket (5), inner core (8); External jacket (5) bottom is provided with bearing (11), and the bottom is provided with thief hole (12), inlet mouth (13), drain hole (16), is installed with base plate (14) on the bearing (11); Base plate (14) is provided with ventilating pit, and ventilating pit is provided with cylindrical ventpipe (7), cylindrical ventpipe (7) top seal; Tube wall is provided with aperture (17), and the base plate (9) of inner core (8) is provided with through hole (10), and inner core (8) places in the external jacket (5); Cylindrical ventpipe (7) passes through hole (10) and places in the inner core (8); Inner core (8) top is provided with end cap (2), and end cap (2) top is provided with opening (1), and inner core (8) is fixedly connected through bolt (3) with end cap (2).
2. biological post bath unit according to claim 1 is characterized in that said external jacket (5) is cylindrical tubular.
3. biological post bath unit according to claim 1 and 2 is characterized in that, said external jacket (5) bottom is the spherical end (6).
4. biological post bath unit according to claim 3 is characterized in that, the contact position of said external jacket (5) top and inner core (8) is provided with seal ring, and inner core (8) can slide up and down along external jacket (5).
5. biological post bath unit according to claim 4 is characterized in that, said external jacket (5) inwall is provided with secondary bearing (15).
6. biological post bath unit according to claim 5 is characterized in that said secondary bearing (15) is provided with spring.
CN2011203362129U 2011-08-30 2011-08-30 Biological column leaching device Withdrawn - After Issue CN202246787U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277490A (en) * 2011-08-30 2011-12-14 内蒙古科技大学 Biological column leaching device
CN102703687A (en) * 2012-06-15 2012-10-03 东华大学 Temperature controllable device for selectively leaching minerals by bacteria
CN106636636A (en) * 2016-11-03 2017-05-10 长春黄金研究院 Microbubble strengthened biological oxidation pretreatment method for gold concentrate difficult to deal with

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102277490A (en) * 2011-08-30 2011-12-14 内蒙古科技大学 Biological column leaching device
CN102277490B (en) * 2011-08-30 2013-05-29 内蒙古科技大学 Biological column leaching device
CN102703687A (en) * 2012-06-15 2012-10-03 东华大学 Temperature controllable device for selectively leaching minerals by bacteria
CN102703687B (en) * 2012-06-15 2014-02-26 东华大学 Temperature controllable device for selectively leaching minerals by bacteria
CN106636636A (en) * 2016-11-03 2017-05-10 长春黄金研究院 Microbubble strengthened biological oxidation pretreatment method for gold concentrate difficult to deal with

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20120530

Effective date of abandoning: 20130529

RGAV Abandon patent right to avoid regrant