CN103495374B - Self-stirring tube-type leaching reactor - Google Patents
Self-stirring tube-type leaching reactor Download PDFInfo
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- CN103495374B CN103495374B CN201310421791.0A CN201310421791A CN103495374B CN 103495374 B CN103495374 B CN 103495374B CN 201310421791 A CN201310421791 A CN 201310421791A CN 103495374 B CN103495374 B CN 103495374B
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Abstract
A self-stirring tube-type leaching reactor comprises a reactor cylinder body, an inlet passage, an outlet passage, a turbine device, a stirring shaft and a frame type flexible stirrer; the reactor cylinder body is composed of a cylinder wall and two end plates; the frame type flexible stirrer is positioned between the inlet passage and the outlet passage, and consists of a shaft sleeve, a frame type stirring blade and a flexible scraping plate; the frame type stirring blade is fixed on the shaft sleeve, the outer end of the frame type stirring blade is fixedly provided with the flexible scraping plate, and the flexible scraping plate is in contact with the cylinder wall; the shaft sleeve is sleeved on the stirring shaft, two ends of the stirring shafts are assembled on the two end plates of the reactor cylinder body, the stirring shaft is further fixedly provided with the turbine device; the inlet passage and the outlet passage are arranged on two sides of the cylinder wall, wherein the turbine device is opposite to the inlet passage. The self-stirring tube-type leaching reactor disclosed by the invention is suitable for multi-phase fluid systems of solid-liquid phase, gas-liquid-solid phase and the like, can apply work to machines by virtue of pressure of multi-phase fluid medium, drives the stirring shaft to rotate, and can achieve the stirring effect without additional energy, thus saving the energy.
Description
Technical field
The present invention relates to a kind of hydrometallurgy reactor for leaching, particularly one is from stirred tube reactor for leaching.
Background technology
Mineral stripping is metallurgical and unit process the most general and the most basic in chemical process, along with the fast development of national economy, the utilization in low-grade complex ore deposit becomes more and more important, in order to improve effective stripping of valuable metal in low-grade complex ore deposit, pressurization stripping receives the concern of industrial quarters and academia day by day.Reactor for leaching is the nucleus equipment of pressurization process in leaching, because the process condition of stripping of pressurizeing is harsh, as mostly being strong acid, strong alkali environment under high pressure, solid Gu and relate to liquid/or gas/liquid/multiphase reaction system, simultaneously, it is the ubiquitous difficult problem of hydrometallurgy reactor that equipment scabs, and therefore, how to strengthen the heat and mass of reactor for leaching, reduces and scab and reduce the developing direction that energy consumption is pressurization reactor for leaching.
Current existing tubular reactor mainly divides two large classes, one is metallurgical, that petrochemical industry is common conventional tubular reactor, this kind of tubular reactor structure is relatively simple, mostly be single tube or sleeve pipe pattern, the demand of basic chemical industry reaction can be met, application is general, but for ensureing that the high turbulence of multiphase flow medium in reactor needs to provide larger power source usually, energy consumption is large.Equations of The Second Kind is the improvement on conventional tubular reactor basis, reactor for leaching is stirred as proposed a kind of inside circumfluence superposed pipe with agitating device in " inside circumfluence superposed pipe reactor for leaching " (application number is the patent application of 200510047338.3) that Zhang Tingan etc. proposes, be mainly used in the mineral process in leaching such as bauxite, this reactor drives mainly through motor, drive blade on shaft and axle to rotate, form the turbulent flow of medium; Shortcoming is: motor drives shaft, and expending can be large, and reactor end part seal is difficult, particularly in high pressure digestion process, easily leaks.Tan Dingzhong etc. propose " Unpowered pipeline stirrer " (application number is the patent application of 201110327208.0), this reactor comprises driving section cylindrical shell and mixing section cylindrical shell, blade is arranged in cylindrical shell by turbine disk simultaneously, does not need powered drive element to realize dynamically mixing; Its shortcoming be fluid media (medium) in cylindrical shell two end axles to turnover, the mixing of rotation and the multiphase flow medium being unfavorable for drives impeller is said from fluid-mechanics point of view, simultaneously, internal member of drum is more, when medium system is containing solid phase, can cause component wear and blocking, this agitator, only for the mixing (" two or more liquid agitation being mixed " see the loyal patent original text of Tan Ding) of liquid medium, is not therefore suitable for solid-liquid or the system such as gas-liquid-solid.
Summary of the invention
The object of the present invention is to provide a kind of from stirred tube reactor for leaching, reactor for leaching is flowed in a tangential manner by multiphase flow fluid, and on shaft, increase driving turbine, by fluid driving stirrer, and then can suppress to scab while being with the flexible agitator of moving frame type to be rotated in the mixing of promotion medium.
Of the present inventionly comprise the flexible agitator of reactor shell, intake channel, exit passageway, turbine apparatus, shaft and frame from stirred tube reactor for leaching; Described reactor shell is made up of barrel and two end plates; The flexible agitator of described frame, between intake channel and exit passageway, is made up of axle sleeve, frame type stirring blade and flexible scraper plate; Frame type stirring blade is fixed on axle sleeve, and the outer end of frame type stirring blade is fixed with flexible scraper plate, and flexible scraper plate contacts with barrel; Axle sleeve is enclosed within shaft, and the two ends of shaft are assemblied on two end plates of reactor shell, and shaft is also fixed with turbine apparatus; Intake channel and exit passageway are located at the both sides of barrel, and wherein turbine apparatus is relative with intake channel.
In said apparatus, turbine apparatus is made up of two wheel discs and driving turbine therebetween, and turbine apparatus is enclosed within shaft.
In said apparatus, the distance between wheel disc and barrel is 1/5 ~ 1/8 of barrel diameter.
In said apparatus, the axis of intake channel and the axes normal of reactor shell, and the distance between the axis of intake channel and the axis of reactor shell is 3/4 ~ 3/5 of reactor shell diameter.
In said apparatus, the diameter of intake channel is 1/12 ~ 1/8 of reactor shell diameter.
In said apparatus, the flexible agitator of frame is provided with 2 ~ 4 frame type stirring blades, each frame type stirring blade is fixed respectively a flexible scraper plate.
In said apparatus, the material selection silicon rubber of flexible scraper plate, rubber or wire brush; The width of flexible scraper plate is 1/15 ~ 1/10 of barrel diameter.
In said apparatus, the diameter of reactor shell is at 100 ~ 1000mm.
In said apparatus, fix with bolt or rivet interlacement between frame type stirring blade and flexible scraper plate.
The course of work from stirred tube reactor for leaching of the present invention is: multiphase flow medium enters from stirred tube reactor for leaching by intake channel along pipe tangential direction, drive and drive turbine to rotate, and then drive shaft and the flexible agitator of frame to rotate thereupon, multiphase flow medium is turbulent flow under this effect, until flow out from exit passageway; In the process, the driving turbine playing driving effect is that palintrope leaf disc drives turbine, is arranged on just to intake channel position; The flexible scraper plate of the flexible agitator of frame continues scraping tube wall, suppresses to scab generation; The flexible agitator of frame can increase the turbulent extent of multiphase flow in flow process, can strengthen heterogeneous reaction process, interphase mass transfer and the diabatic processes such as solid-liquid, gas-liquid-solid, liquid-liquid; And rely on the original pressure energy of multiphase flow medium at whole whipping process, do not need external energy.
Of the present inventionly be applicable to solid-liquid, the multiphase flow system such as gas-liquid-solid from stirred tube reactor for leaching, rely on the pressure energy of multiphase flow medium to mechanical work, drive shaft to rotate, stirring action can be played without the need to external energy, economize energy; The turbulent extent of Multiphase Flow medium in flow process is increased, enhancing mass and heat transfer and stripping course of reaction by agitating device; Multiphase flow medium is that tangential direction enters in stirred tube reactor for leaching, is beneficial to the driving driving turbine; Shaft in stirred tube reactor for leaching can realize static seal, is applicable to high-temperature high-voltage reaction process.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention 1 from stirred tube reactor for leaching structural representation;
Fig. 2 is the side elevational cross-section structural representation of the turbine apparatus of the embodiment of the present invention 1;
Fig. 3 is the flexible agitator structure schematic diagram of frame of the embodiment of the present invention 1;
Fig. 4 is the intake channel of the embodiment of the present invention 1 and the side elevational cross-section structural representation of barrel;
In figure 1, front end-plate, 2, intake channel, 3, turbine apparatus, 3-1, drive turbine, 3-2, wheel disc, 4, barrel, 5, the flexible agitator of frame, 5-1, flexible scraper plate, 5-2, frame type stirring blade, 5-3, axle sleeve, 6, shaft, 7, bearing shell, 8, end plate, 9, exit passageway.
Detailed description of the invention
In the embodiment of the present invention, the two ends of shaft are respectively together with a Sleeve assembling, and two bearing shells are separately fixed on two end plates.
Fix with bolt or rivet interlacement between stirrer paddle and flexible scraper plate in the embodiment of the present invention, so that dismounting.
Driving turbine in the embodiment of the present invention is that palintrope leaf disc drives turbine.
Together the wire brush adopted in the embodiment of the present invention is made up of multiple fixation with steel wire, and one end of multiple steel wire selects stainless steel substrates to be fixed together, and the other end is connected with barrel, and stainless steel substrates end is fixed on frame type stirring blade.
embodiment 1
From stirred tube reactor for leaching structure as shown in Figure 1, the flexible agitator 5 of reactor shell, intake channel 2, exit passageway 9, turbine apparatus 3, shaft 6 and frame is comprised;
Reactor shell is made up of barrel 4, front end-plate 1 and end plate 8;
The flexible agitator 5 of frame is between intake channel 2 and exit passageway 9, and structure as shown in Figure 3, is made up of axle sleeve 5-3, frame type stirring blade 5-2 and flexible scraper plate 5-1; Multiple frame type stirring blade 5-2 is fixed on axle sleeve 5-3, and the outer end of frame type stirring blade 5-2 is fixed with flexible scraper plate 5-1, and flexible scraper plate 5-1 contacts with barrel 4;
Axle sleeve 5-3 is enclosed within shaft 6, on the front end-plate 1 that the two ends of shaft 6 are assemblied in reactor shell respectively by two bearing shells 7 and end plate 8, shaft 6 is also fixed with turbine apparatus 3;
Intake channel 2 and exit passageway 9 are located at the both sides of barrel 4, and wherein turbine apparatus 3 is relative with intake channel 2;
As shown in Figure 2, be made up of two wheel disc 3-2 and driving turbine 3-1 therebetween, turbine apparatus 3 is enclosed within shaft 6 turbine apparatus 3 side elevational cross-section structure;
Distance between the edge of wheel disc 3-2 and barrel 4 is 1/5 of barrel 4 diameter;
The axis of intake channel 2 and the axes normal of reactor shell, as shown in Figure 4, and the distance between the axis of intake channel 2 and the axis of reactor shell is 3/4 of reactor shell diameter to structure;
The diameter of intake channel 2 is 1/8 of reactor shell diameter;
The flexible agitator 5 of frame is provided with 2 frame type stirring blade 5-2, and each frame type stirring blade 5-2 fixes a flexible scraper plate 5-1 respectively;
The material of flexible scraper plate 5-1 is rubber; The width of flexible scraper plate 5-1 is 1/15 of the diameter of barrel 4;
Each frame type stirring blade 5-2 is uniformly distributed on axle sleeve 5-3, and the distance between upper adjacent two the frame type stirring blade 5-2 of same row is 0.5 times of barrel 4 diameter;
Barrel 4 diameter of reactor shell is at 900mm;
Be joined with bolts between frame type stirring blade 5-2 and flexible scraper plate 5-1;
From the course of work of stirred tube reactor for leaching be: multiphase flow medium enters from stirred tube reactor for leaching by intake channel along pipe tangential direction, drive and drive turbine to rotate, and then drive shaft and the flexible agitator of frame to rotate thereupon, multiphase flow medium is turbulent flow under this effect, until flow out from exit passageway; In the process, the driving turbine playing driving effect is that four leaf palintrope leaf discs drive turbine, is arranged on just to intake channel position; Whole frame type stirring blade is connected by the flexible scraper plate of the flexible agitator of frame, and under stirring, flexible scraper plate continues scraping tube wall, suppresses to scab generation;
Take red mud for alumina plant as raw material, use and should carry out calcify reaction from stirred tube reactor for leaching, the solid-liquid reaction system of setting liquid-solid ratio=5:1, calcium silicon ratio=3.5:1, reaction temperature 150 DEG C, pressure 3Mp, reaction time 30min, calcify reaction efficiency reaches 95%; Reaction efficiency improves 5% compared with conventional tubular reactor for leaching under equal conditions, and reaction efficiency improves 10% compared with conventional high-tension still reactor, and because without agitation energy input, saves electric energy.
embodiment 2
From stirred tube reactor for leaching structure with embodiment 1, difference is:
Distance between the edge of wheel disc and barrel is 1/6 of barrel diameter;
Distance between the axis of intake channel and the axis of reactor shell is 3/5 of reactor shell diameter;
The diameter of intake channel is 1/10 of reactor shell diameter;
The flexible agitator of frame is provided with 3 frame type stirring blades;
The material of flexible scraper plate is wire brush; The width of flexible scraper plate is 1/12 of the diameter of barrel;
Distance between upper adjacent two the frame type stirring blades of same row is 2 times of barrel diameter;
The barrel diameter of reactor shell is at 1000mm;
Fix with rivet interlacement between frame type stirring blade and flexible scraper plate;
The course of work is with embodiment 1, and difference is:
With the product in embodiment 1 and calcification slag for raw material, use and should carry out carbonation reaction from stirred tube reactor for leaching, setting liquid-solid ratio=10:1, reaction temperature 120 DEG C, pressure 1.2 Mp, passes into CO in reactor
2, reaction time 2h, single carburizing reagent rate 30%, under same reaction condition, reaction efficiency improves 5% compared with conventional high-tension still reactor, and reaction efficiency improves 15% compared with conventional tubular reactor for leaching, and because without agitation energy input, saves electric energy.
embodiment 3
From stirred tube reactor for leaching structure with embodiment 1, difference is:
Distance between the edge of wheel disc and barrel is 1/8 of barrel diameter;
Distance between the axis of intake channel and the axis of reactor shell is 7/10 of reactor shell diameter;
The diameter of intake channel is 1/12 of reactor shell diameter;
The flexible agitator of frame is provided with 4 frame type stirring blades;
The material of flexible scraper plate is silicon rubber; The width of flexible scraper plate is 1/10 of the diameter of barrel;
Distance between upper adjacent two the frame type stirring blades of same row is 1 times of barrel diameter;
Barrel 4 diameter of reactor shell is at 100mm;
Fix with rivet interlacement between frame type stirring blade and flexible scraper plate;
The course of work is with embodiment 1, and difference is:
With the product in embodiment 1 and calcification slag for raw material, use and should carry out carbonation reaction from stirred tube reactor for leaching, liquid-solid ratio 10:1, reaction temperature 120 DEG C, pressure 1.2 Mp, passes into CO in reactor
2, reaction time 2h, single carburizing reagent rate 30%, under same reaction condition, reaction efficiency improves 8% compared with conventional high-tension still reactor, and reaction efficiency improves 20% compared with conventional tubular reactor for leaching, and because without agitation energy input, saves electric energy.
embodiment 4
From stirred tube reactor for leaching structure with embodiment 1;
With certain diaspore type bauxite for raw material, using should carry out stripping reaction from stirred tube reactor for leaching, investigated reactor wall and to scab situation; Through running 3 months continuously, tube wall has no the generation that scabs; Adopt conventional high-tension tank reactor (autoclave), under same reaction condition, run 2 ~ 3 months continuously, namely the thickness that scabs reach 5 ~ 7mm.
Claims (6)
1., from a stirred tube reactor for leaching, it is characterized in that comprising the flexible agitator of reactor shell, intake channel, exit passageway, turbine apparatus, shaft and frame; Described reactor shell is made up of barrel and two end plates; The flexible agitator of described frame, between intake channel and exit passageway, is made up of axle sleeve, frame type stirring blade and flexible scraper plate; Frame type stirring blade is fixed on axle sleeve, and the outer end of frame type stirring blade is fixed with flexible scraper plate, and flexible scraper plate contacts with barrel; Axle sleeve is enclosed within shaft, and the two ends of shaft are assemblied on two end plates of reactor shell, and shaft is also fixed with turbine apparatus; Intake channel and exit passageway are located at the both sides of barrel, and wherein turbine apparatus is relative with intake channel; The axis of described intake channel and the axes normal of reactor shell, and the distance between the axis of intake channel and the axis of reactor shell is 3/4 ~ 3/5 of reactor shell diameter; The flexible agitator of described frame is provided with 2 ~ 4 frame type stirring blades, each frame type stirring blade is fixed respectively a flexible scraper plate.
2. one according to claim 1 is from stirred tube reactor for leaching, and it is characterized in that described turbine apparatus is made up of two wheel discs and driving turbine therebetween, turbine apparatus is enclosed within shaft.
3. one according to claim 2 is from stirred tube reactor for leaching, it is characterized in that the distance between described wheel disc and barrel is 1/5 ~ 1/8 of barrel diameter.
4. one according to claim 1 is from stirred tube reactor for leaching, it is characterized in that the material selection silicon rubber of described flexible scraper plate, rubber or wire brush; The width of flexible scraper plate is 1/15 ~ 1/10 of barrel diameter.
5. one according to claim 1 is from stirred tube reactor for leaching, it is characterized in that fixing with bolt or rivet interlacement between described frame type stirring blade and flexible scraper plate.
6. one according to claim 1 is from stirred tube reactor for leaching, it is characterized in that the diameter of described intake channel is 1/12 ~ 1/8 of reactor shell diameter.
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| CN201310421791.0A CN103495374B (en) | 2013-09-17 | 2013-09-17 | Self-stirring tube-type leaching reactor |
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| CN201310421791.0A CN103495374B (en) | 2013-09-17 | 2013-09-17 | Self-stirring tube-type leaching reactor |
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| CN103495374B true CN103495374B (en) | 2015-06-03 |
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| CN107495839A (en) * | 2017-08-10 | 2017-12-22 | 深圳西诺咖啡机制造有限公司 | A kind of device that water and carbon dioxide are mixed to generation carbonated water immediately |
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| CN110180483B (en) * | 2019-06-28 | 2024-05-28 | 南充西南石油大学设计研究院有限责任公司成都分公司 | Shaftless fluid reactor and sulfur-containing gas slurry desulfurization device |
| KR102262303B1 (en) * | 2019-10-08 | 2021-06-09 | 금호석유화학 주식회사 | A continuous polymerization reactor with reduced bypass flow |
| CN111672386A (en) * | 2020-07-01 | 2020-09-18 | 杨桐 | A agitating unit for preparing graphite alkene thick liquids |
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| GB1013757A (en) * | 1963-02-12 | 1965-12-22 | Cottell Eric Charles | Rotating liquid whistle |
| US5607233A (en) * | 1995-01-30 | 1997-03-04 | Quantum Technologies, Inc. | Continuous dynamic mixing system |
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