CN102703687B - Temperature controllable device for selectively leaching minerals by bacteria - Google Patents
Temperature controllable device for selectively leaching minerals by bacteria Download PDFInfo
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- CN102703687B CN102703687B CN201210199228.9A CN201210199228A CN102703687B CN 102703687 B CN102703687 B CN 102703687B CN 201210199228 A CN201210199228 A CN 201210199228A CN 102703687 B CN102703687 B CN 102703687B
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Abstract
The invention relates to a temperature controllable device for selectively leaching minerals by bacteria. The device comprises a stirrer, a main body reactor and a constant temperature controller, wherein the main body reactor is a hollow cylinder; an intermediate chamber which is used for placing mineral leaching bacteria and is constructed by a glass fiber microfiltration membrane is formed in the middle of the main body reactor, and a plurality of fan-shaped chambers which have the same sizes and are used for placing minerals of different varieties or particle sizes are partitioned at the periphery of the cuboid chamber by clapboards and the inner wall of the main body reactor; stirring paddles of the stirrer extend into the fan-shaped chambers; a closed water bath device is arranged inside the main body reactor, and a water outlet is formed on the side wall close to the bottom; and a heating device and the constant temperature controller which are connected with each other are also arranged inside the main body reactor. By the temperature controllable device, the decomposition and utilization of the mineral leaching bacteria on the minerals of different varieties or particle sizes can be reflected accurately at a certain constant temperature under the same reaction condition and reaction time.
Description
Technical field
The present invention relates to microbial metallurgy technical field, particularly relate to a kind of temperature controlled ore-leaching bacteria mineral selectivity is leached to device.
Background technology
Microbial metallurgy technology is widely used in the Bioleaching of primary sulfide ore, complex ore, particularly lean ore, abandoned mine, difficult ore.The Bioleaching of copper, gold, uranium metal is realized industrialization already at present, and the Bioleaching of other metal is in experimental stage, and this technology is all of great immediate significance to the industrial development of China and national defence field.Since eighties of last century, investigator has launched scientific research widely to ore-leaching bacteria absorption mineral, but only limit to utilize traditional simple assembly (as Erlenmeyer flask) constantly to repeat experiment, to bring inconvenience to investigator like this: first, while testing, each device can only be measured a kind of mineral at every turn; Secondly, resource and time are wasted in a large amount of experiments that repeats; Homogeneity and the repeatability of condition while again, being difficult to guarantee each experiment in leaching process; It is worth mentioning that most that cannot measure different sorts or granularity mineral is decomposed and utilizes situation at one time with under same reaction conditions.
According to looked into relevant device device data, come the Li Bangmei of Kan，Jin You Central South University in 2006, to apply for relevant patent of invention, but do not obtain the authorization up to now.This invention is a selective adsorption arrangement, and this device exists many deficiencies in design, cannot practical application.First, this device is for closed unit, is not suitable for being mostly the growth of the ore-leaching bacteria of aerobic bacteria; Secondly, owing to there being at present the ore-leaching bacteria of running prospect to be mostly thermophilic bacteria and thermophilic bacterium, its optimum growth temperature is between 30 ℃-80 ℃, and this device cannot guarantee that temperature reaches bacterium normal growth and the most suitable growth requirement; Again, this device is because needs are frequently changed whole microfiltration membrane plug-in unit, and duration of test consumptive material consumes high, and microfiltration membrane plug-in unit exists with sector shaped chamber around and contacts with reactor chassis the risk that does not closely cause different minerals particle mutually to pollute simultaneously; Finally, this installs each sector shaped chamber dividing plate and cubes cell is glass fibre porous filter membrane, soaking in the process of ore deposit of different minerals, ion in different ore leachates can pass through millipore filtration free migration, very likely affect bacterium to the absorption of mineral and Leaching reaction, should reduce the approach that different ore leachate intermediate ions move mutually as far as possible.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of temperature controlled bacterium mineral selectivity is leached to device, can and reflect exactly under the time that at a certain steady temperature condition, same reaction conditions ore-leaching bacteria decomposes utilization to different sorts or granularity mineral.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of temperature controlled bacterium to leach device to mineral selectivity, comprise agitator, main body reactor and radiator valve, described main body reactor is hollow circular cylinder, in the middle of described main body reactor, is provided with for placing intermediate chamber ore-leaching bacteria and that built by glass fibre porous filter membrane, and the inwall by dividing plate and described main body reactor in described rectangular parallelepiped chamber, be around separated out several formed objects for placing the sector shaped chamber of different sorts or granularity mineral; The stirring rake of described agitator stretches in described sector shaped chamber; Described main body inside reactor is provided with airtight water bath device, and the sidewall of close bottom is provided with water outlet; Described main body inside reactor is also provided with interconnective heating unit and radiator valve.
Described glass fibre porous filter membrane is microfiltration membrane plug-in unit; Described microfiltration membrane plug-in unit is embedded in the hollow organic-glass board mount at two V-arrangement edges, and fixes by fixing traveling nut knob.
Described main body reactor chassis is provided with the mount pad of microfiltration membrane plug-in unit.
Described heating unit is annular electro heated filament.
Described agitator comprises support disk, is fixed with two cross one another horizontal stands under described support disk; Described horizontal stand two ends are all connected with vertical support frame, and described vertical support frame is arranged on the chassis of described main body reactor; Described support disk lower surface is fixed with fixed link; Described fixed link lower end is connected chimeric with stirring rake by governing screw; Described stirring rake lower end is provided with two blades; On described fixed link, cover has from gear; In described support disk, upside-down mounting has the motor being connected with controller, and the output shaft of described motor is connected with master gear through described support disk; Described master gear is with intermeshing from gear.
Described vertical support frame is enclosed within the lifting sleeve of hollow; Described lifting sleeve interfixes by governing screw and vertical support frame; Described lifting sleeve is arranged on the chassis of described main body reactor.
Described horizontal stand is connected in the chimeric mode of machinery by governing screw with vertical support frame.
Described stirring rake lower end is provided with at a distance of two two leaves of mixing for 30-60mm.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, there is following advantage and positively effect: the present invention cooperatively interacts by additional agitator and main body reactor, sufficient at oxygen, the selective adsorption of ore-leaching bacteria to mineral is provided under homo(io)thermism condition, utilize environment, the mineral of different sorts or granularity can be placed under same condition, and don't can mutually mix, free-moving ore-leaching bacteria can need to optionally adsorb and utilize mineral of different nature according to self metabolism, and can in soaking ore deposit reaction, control reaction conditions, by the concentration of ore-leaching bacteria in the breeze place cell ore leachate of mensuration different sorts or granularity, and ore leachate pH and redox potential changing conditions, evaluate the leaching effect of bacterium and different sorts or granularity breeze preferentially utilized to situation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the sectional view of main body reactor in the present invention;
Fig. 4 is the vertical view of microfiltration membrane plug-in unit in the present invention;
Fig. 5 is the Component units figure of microfiltration membrane plug-in unit in the present invention;
Fig. 6 is the mount pad structural representation on main body reactor chassis in the present invention;
Fig. 7 is agitator structure schematic diagram in the present invention;
Fig. 8 is the lifting sleeve of agitator and the connection diagram of vertical support frame in the present invention;
Fig. 9 is horizontal stand and the vertical support frame connected embedding figure of place in the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiments of the present invention relate to a kind of temperature controlled bacterium mineral selectivity are leached to device, comprise agitator, main body reactor and radiator valve, described main body reactor is hollow circular cylinder, in the middle of described main body reactor, is provided with for placing intermediate chamber ore-leaching bacteria and that built by glass fibre porous filter membrane, and the inwall by dividing plate and described main body reactor in described rectangular parallelepiped chamber, be around separated out several formed objects for placing the sector shaped chamber of different sorts or granularity mineral; The stirring rake of described agitator stretches in described sector shaped chamber; Described main body inside reactor is provided with airtight water bath device, and the sidewall of close bottom is provided with water outlet; Described main body inside reactor is also provided with interconnective heating unit and radiator valve.
This device is sufficient at oxygen, the selective adsorption of ore-leaching bacteria to mineral is provided under homo(io)thermism condition, utilize environment, the mineral of different sorts or granularity can be placed under same condition, and don't can mutually mix, free-moving ore-leaching bacteria can need to optionally adsorb and utilize mineral of different nature according to self metabolism, and can in soaking ore deposit reaction, control reaction conditions, by the concentration of ore-leaching bacteria in the breeze place cell ore leachate of mensuration different sorts or granularity, and ore leachate pH and redox potential changing conditions, evaluate the leaching effect of bacterium and different sorts or granularity breeze preferentially utilized to situation.
By main body reactor, constant temperature numerical control display and additional agitator, form this device.Ore-leaching bacteria betides in main body reactor the Adsorption and decomposition utilization reaction of mineral, and reactor uncovered is convenient stirs to guarantee that oxygen and carbonic acid gas are by air regular supply; Reactor is divided into several reaction small chambers by dividing plate and microfiltration membrane plug-in unit, several sector shaped chambers of surrounding can be put into the mineral of different sorts or granularity, between each cell, with synthetic glass, be spaced from each other, can reduce the approach that different ore leachate intermediate ions exchange mutually, and then greatly reduce and can affect the uncertain factor of ore-leaching bacteria to the preferential situation of mineral utilization.Centre is intermediate chamber, can hold ore-leaching bacteria, and intermediate chamber side is glass fibre porous filter membrane.Because ore-leaching bacteria size is 0.5-2 μ m, mineral granularity is 40-250 μ m, membrane pore size is 8-20 μ m, thereby can allow ore-leaching bacteria freely to pass through, mineral cannot pass through, ore-leaching bacteria can according to self growth metabolism need to be between several different sortses and the mineral of granularity optionally absorption utilize.So both can make reaction synchronously carry out, guarantee again homogeneous and the repeatability of condition when ore-leaching bacteria utilizes different minerals.Because filter membrane can not forever be used, therefore at it, add the edge of plastics around, make microfiltration membrane plug-in unit, by dismounting plug-in unit, be replaceable filter membrane.
The metabolic rate of ore-leaching bacteria to the suitable temperature guarantee maximum of the Adsorption and decomposition reaction needed of mineral, therefore at the peripheral thermostat that adds the ring seal of identical material of main body reactor, this device is controlled indicating meter by annular electro heated filament and numerical control temperature and is formed, can monitor in real time and adjust temperature of reaction, additional agitator can be by four motor synchronization control, after four electric machine main shaft gears rotate, drive four stirring rakes to rotate and stir corresponding cell with same speed, make cell obtain enough oxygen and carbonic acid gas.
As shown in Figure 1, apparatus of the present invention are comprised of additional agitator 2, main body reactor 1, radiator valve three parts.It is 8mm synthetic glass that main body reactor 1 wall material is water white thickness, reactor 1 chassis diameter is 300mm, top, chassis is two concentric(al) circles looping structures, height 120mm, external diameter is 280mm, centre is airtight water bath device, annular top has diameter 10mm prosopyle, in confined chamber, having annular electro heated filament apart from bottom 2mm, to go out to have a diameter around, wall is the water outlet that 20mm protrudes, and chimeric temperature controller.The internal diameter of main body reactor 1 is 240mm, right cylinder for hollow uncovered, inner by lucite spacer 12, be divided into chamber in large fan-shaped of four grades, the fan-shaped length of side is less than reactor radius so that reactor center forms the cubes cell that the length of side is 60mm, and cubes cell is surrounded by glass fibre porous filter membrane 12.Fig. 2 is the vertical view of main body reactor of the present invention, and Fig. 3 is main body reactor sectional view of the present invention.Additional stirrer stand height is 200mm, by a motor and five gears, formed, motor master gear rotates and drives other four gears to rotate with same speed, motor is placed at disk top, and connect controller trip switch and rotating speed, four steel brackets are chimeric to the aperture of four, main body reactor chassis respectively, four stainless steel stirring rake height 180mm, every support goes out a nested hollow sleeve from distance from bottom ground 60mm, at the sleeve pipe the other end, punch, degree of tightness by screw realizes the free adjustment to support height, support level length is 280mm, each stirring rake has the stainless paddle of two intersections, lower paddle is 20mm apart from reactor bottom, two paddles are from being 30-60mm.
Cubes cell and around separating with glass fibre porous filter membrane plug-in unit between sector shaped chamber, can make bacterium freely come in and go out.Microfiltration membrane is embedded on the hollow organic-glass board mount at two V-arrangement edges, the high 110mm of frame, each hem width of frame-saw 10mm.The left figure of Fig. 6 is the vertical view of V-arrangement poly (methyl methacrylate) plate, two V-arrangement poly (methyl methacrylate) plate sandwich microfiltration membrane are also passed through six fixedly microfiltration membrane plug-in units at a W shape edge of traveling nut knob formation, Fig. 4 is the complete vertical view of microfiltration membrane plug-in unit, centre is emptied and can be pulled and pushed replacing filter membrane, and Fig. 5 is microfiltration membrane plug-in unit side W shape conceptual view.
For guaranteeing the respond close contact on device chassis of microfiltration membrane plug-in unit, as shown in Figure 6, the chassis of main body reactor is provided with for placing the M shape edge mount pad that the length of side is 60mm square antiseep W shape synthetic glass frame.In the time of in microfiltration membrane plug-in unit insertion reaction device, the M shape edge mount pad of this bottom can be closely chimeric with W shape base frame.Each frame W connected in star length of this square is 40mm, and each 10mm length of two ends, every limit is smooth interface, can be with sallop screen vulcanite by industrial waterproof strong glue bond.
Sector shaped chamber dividing plate length can be derived as 77.6mm through geometrical calculation, it is 90 ° of chimeric supports of W type vulcanite that dividing plate end separates angle, can be closely chimeric with microfiltration membrane plug-in unit, this backing thickness is 10mm, by industrial waterproof strong glue and sallop screen close adhesion, with this, realize the movable property of microfiltration membrane plug-in unit.
As shown in Figure 7, agitator 2 comprises support disk 31, and described support disk is fixed with two cross one another horizontal stands 32 for 31 times; Described horizontal stand 32 two ends are all connected with vertical support frame 33; Described support disk 31 lower surfaces are fixed with fixed link 34; Described fixed link 34 lower ends are connected chimeric with stirring rake 34 by governing screw; Described stirring rake 34 lower ends are provided with two blades 37; On described fixed link 34, cover has from gear; In described support disk 31, upside-down mounting has the motor 38 being connected with controller 39, and the output shaft of described motor 38 is connected with master gear through described support disk 31; Described master gear is with intermeshing from gear.Described vertical support frame 33 is enclosed within the lifting sleeve 36 of hollow; Described lifting sleeve 36 interfixes by governing screw and vertical support frame 33.
As shown in Figure 8, the free lifting of whipping appts is realized in vertical support frame 33 bottoms by hollow lifting sleeve 36, by controlling the height that degree of tightness that sleeve pipe 36 tightens up a screw can free adjustment steel pipe support, can realize the height of controlling stirring rake, make the optimum contacting state of reaction solution and stirring rake; Level that simultaneously also can realization response liquid at non-horizontal surface stirs.
As shown in Figure 9, vertical support frame 33 is connected by governing screw with horizontal stand 32, form connected embedding place, pass through governing screw, can realize the dismounting of vertical support frame 33, after dismounting, expand the use range of agitator and increased it and used handiness, as realized by fixed stirring (can only be positioned over horizontal plane before dismounting stirs), turned to free style (device can manually be controlled, and realizes the stirring to the reactor of any position and shape) to stir; Vertical support frame and horizontal stand angle can be 0-180 ° of scope free adjustment, not only increase the adjustable extent of device height, also potential expanded can stirred reactor kind.
Claims (8)
1. a temperature controlled bacterium is leached device to mineral selectivity, comprise agitator (2), main body reactor (1) and radiator valve, it is characterized in that, described main body reactor (1) is hollow circular cylinder, is provided with for placing intermediate chamber ore-leaching bacteria and that built by glass fibre porous filter membrane (11) in the middle of described main body reactor (1), and the inwall by dividing plate (12) and described main body reactor (1) around described intermediate chamber, be separated out several formed objects for placing the sector shaped chamber of different sorts or granularity mineral; The stirring rake of described agitator (2) stretches in described sector shaped chamber; Described main body reactor (1) inside is provided with airtight water bath device, and the sidewall of close bottom is provided with water outlet; Described main body reactor (1) inside is also provided with interconnective heating unit and radiator valve.
2. temperature controlled bacterium according to claim 1 is leached device to mineral selectivity, it is characterized in that, described glass fibre porous filter membrane (11) is microfiltration membrane plug-in unit; Described microfiltration membrane plug-in unit is embedded in the hollow organic-glass board mount at two V-arrangement edges, and fixes by fixing traveling nut knob.
3. temperature controlled bacterium according to claim 2 is leached device to mineral selectivity, it is characterized in that, described main body reactor (1) chassis is provided with the mount pad of microfiltration membrane plug-in unit.
4. temperature controlled bacterium according to claim 1 is leached device to mineral selectivity, it is characterized in that, described heating unit is annular electro heated filament.
5. temperature controlled bacterium according to claim 1 is leached device to mineral selectivity, it is characterized in that, described agitator (2) comprises support disk (31), is fixed with two cross one another horizontal stands (32) under described support disk (31); Described horizontal stand (32) two ends are all connected with vertical support frame (33), and described vertical support frame (33) is arranged on the chassis of described main body reactor (1); Described support disk (31) lower surface is fixed with fixed link (34); Described fixed link (34) lower end is connected chimeric with stirring rake (35) by governing screw; Described stirring rake (35) lower end is provided with two blades (37); The upper cover of described fixed link (34) has from gear; The upper upside-down mounting of described support disk (31) has the motor (38) being connected with controller (39), and the output shaft of described motor (38) is connected with master gear through described support disk (31); Described master gear is with intermeshing from gear.
6. temperature controlled bacterium according to claim 5 is leached device to mineral selectivity, it is characterized in that, described vertical support frame (33) is enclosed within the lifting sleeve (36) of hollow; Described lifting sleeve (36) interfixes by governing screw and vertical support frame (33); Described lifting sleeve (36) is arranged on the chassis of described main body reactor (1).
7. temperature controlled bacterium according to claim 5 is leached device to mineral selectivity, it is characterized in that, described horizontal stand (32) is connected in the chimeric mode of machinery by governing screw with vertical support frame (33).
8. temperature controlled bacterium according to claim 5 is leached device to mineral selectivity, it is characterized in that, described stirring rake (35) lower end is provided with at a distance of two two leaves of mixing for 30-60mm.
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| CN106498160B (en) * | 2016-11-22 | 2019-04-12 | 中国地质科学院矿产综合利用研究所 | Novel leaching method in biological scandium leaching process |
| CN106591576B (en) * | 2017-02-19 | 2018-11-16 | 李思思 | A kind of high efficiency biological metallurgy equipment |
| CN107460349A (en) * | 2017-07-06 | 2017-12-12 | 核工业北京化工冶金研究院 | A kind of in-situ acid uranium leaching laboratory simulation device and test method |
| CN110699549B (en) * | 2019-09-27 | 2021-06-15 | 荆门市格林美新材料有限公司 | Recovery unit of valuable metal in old and useless foam nickel |
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Inventor after: Xie Xuehui Inventor after: Zhou Qian Inventor after: Zhu Wenxiang Inventor after: Cui Yanzhao Inventor after: Zhang Kai Inventor after: Yuan Xuewu Inventor after: Fan Fengxia Inventor after: Ping Jing Inventor after: Liu Jianshe Inventor after: Chen Xiaoguang Inventor before: Xie Xuehui Inventor before: Zhu Wenxiang Inventor before: Cui Yanzhao Inventor before: Chen Xiaoguang Inventor before: Yuan Xuewu Inventor before: Fan Fengxia Inventor before: Ping Jing Inventor before: Liu Jianshe |
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Free format text: CORRECT: INVENTOR; FROM: XIE XUEHUI ZHU WENXIANG CUI YANZHAO CHEN XIAOGUANG YUAN XUEWU FAN FENGXIA PING QIAN LIU JIANSHE TO: XIE XUEHUI ZHU WENXIANG CUI YANZHAO ZHANG KAI YUAN XUEWU FAN FENGXIA PING QIAN LIU JIANSHE CHEN XIAOGUANG ZHOU QIAN |
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