CN104609487B - A kind of In-situ Leaching Uranium Mine waste evaporator plant and method - Google Patents

A kind of In-situ Leaching Uranium Mine waste evaporator plant and method Download PDF

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Publication number
CN104609487B
CN104609487B CN201410820347.0A CN201410820347A CN104609487B CN 104609487 B CN104609487 B CN 104609487B CN 201410820347 A CN201410820347 A CN 201410820347A CN 104609487 B CN104609487 B CN 104609487B
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waste water
situ leaching
uranium mine
leaching uranium
matrix material
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CN201410820347.0A
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CN104609487A (en
Inventor
苏学斌
刘乃忠
李喜龙
高险峰
成弘
阮志龙
夏旭
吴旭红
闫纪帆
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Center Tongliao You Ye LLC
Beijing Research Institute of Chemical Engineering and Metallurgy of CNNC
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Center Tongliao You Ye LLC
Beijing Research Institute of Chemical Engineering and Metallurgy of CNNC
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/141—Wind power
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)

Abstract

The present invention provides a kind of In-situ Leaching Uranium Mine waste evaporator plant and method.In-situ Leaching Uranium Mine water reuse immersible pump in evaporation tank is promoted in vaporising device by it, control wastewater temperature 10～20 DEG C；In vaporising device, waste water enters liquid distributor, is sprayed on matrix material evaporation uniformly by the liquid distributing hole on liquid distributor；Waiting 20～30min, on matrix material, the waste water of absorption all evaporates completely, starts waste water next time and sprays；Evaporation tank is entered from vaporising device return of waste water out.The waste water that the present invention produces for In-situ Leaching Uranium Mine, waste water is uniformly distributed on matrix material by the method promoted by immersible pump, waste water carries out accelerating under the effect of wind energy or solar energy the new method of evaporation, improve evaporation efficiency, solve the difficult problem that evaporation tank waste water is difficult and accumulates, there is preferable economy and reasonability.

Description

A kind of In-situ Leaching Uranium Mine waste evaporator plant and method
Technical field
The invention belongs to in-situ leaching uranium mine wastewater treatment technology, be specifically related to a kind of ground-dipping uranium extraction ore deposit Mountain waste evaporator plant and method.
Background technology
In-situ leaching uranium technology is that centralized procurement, choosing, smelting adopt uranium new technology in one, the most at home and abroad Being widely used in the exploitation of uranium, the method for wastewater treatment leaching and producing in wet metallurgy course is to enter evaporation tank Carry out natural evaporation, i.e. natural evaporation method.The main source of ground leaching mine wastewater has: one, Situ Leaching Adopting uranium mine is to ensure that leaching solution is not diluted by the subsoil water beyond mining area exploitation scope, ensures simultaneously Leaching solution not to limit of mining with external diffusion, generally the molten leaching scope of leaching solution is controlled, general Way is that the drawing liquid amount of production well is more than the 0.3% of the reservoir quantity that fluid injection is holed, and drawing liquid amount is more than reservoir quantity The leachate of 0.3% enters evaporation tank through ion-exchange absorption is attached；Two, leachate is attached through ion-exchange absorption, The qualifying liquid of the saturated rear drip washing of resin is acidified, the last sedimentation of precipitation, the mother solution uranium concentration relatively lower curtate of sedimentation Divide and enter evaporation tank natural evaporation；Three, ground waste water and worker's waste water of bath are rinsed in hydrometallurgy Factory Building.Make By natural evaporation method, waste water process can be made full use of local natural conditions natural, reduce the one-tenth that waste water processes This.The main deficiency of natural evaporation method is: relatively big by effect of natural conditions, winter, evaporation capacity was the least, only It is applicable to evaporation capacity regional much larger than rainfall, expands evaporation the most accordingly along with the increase of production capacity simultaneously The area in pond is higher to expropriation of land and environmental protection requirement.
Summary of the invention
It is an object of the invention to provide a kind of In-situ Leaching Uranium Mine waste evaporator plant and method, it passes through Hanging matrix material utilizes wind energy to process waste water, solves an evaporation tank waste water accumulation difficult problem, lowers expropriation of land Pressure with environmental protection.
Realize the technical scheme of the object of the invention: a kind of In-situ Leaching Uranium Mine waste water method of evaporating, it wraps Include following steps:
A In-situ Leaching Uranium Mine water reuse immersible pump in evaporation tank is promoted in vaporising device by (), Control wastewater temperature 10～20 DEG C；
B (), in vaporising device, waste water enters liquid distributor, is sprayed uniformly by the liquid distributing hole on liquid distributor It is sprinkled upon on matrix material evaporation；The feed liquor time of waste water is 3～10min, liquid inlet volume is 250～350g/m2； Control air humidity 35～50%RH, wind speed 1～3m/s；Matrix material entirety moisture-holding capacity is 30～40kg； Described matrix material is polypropylene establishment cloth or carbon fiber woven cloth；
C () waits 20～30min, on matrix material, the waste water of absorption all evaporates completely, starts next Secondary waste water sprays；Evaporation tank is entered from vaporising device return of waste water out.
A kind of In-situ Leaching Uranium Mine waste water method of evaporating as above, sets by its described vaporising device Put rinse bath, place the aqueous citric acid solution that mass percent is 10～30wt% in rinse bath, use diving This aqueous citric acid solution is sprayed on matrix material by pump, carries out the crystal being attached on matrix material Washing.
A kind of In-situ Leaching Uranium Mine waste evaporator plant of the present invention, this vaporising device includes machine Frame, frame is fixed on pedestal, some stay tubes be arranged in parallel employing pipe clamp be fixed on upper rack and Bottom, some block matrix materials are fixed between corresponding two piece setting up and down stay tube, in frame Top also be arranged in parallel some liquid distributors, and liquid distributor has several liquid distributing holes.
A kind of In-situ Leaching Uranium Mine waste evaporator plant as above, its described adjacent liquid distributor spacing It is 200～300mm, every liquid distributor is offered the liquid distributing hole that spacing is 30～40mm, liquid distributing hole footpath 1～3mm.
A kind of In-situ Leaching Uranium Mine waste evaporator plant as above, its described liquid distributor material is UPVC pipe or stainless steel tube.
In-situ Leaching Uranium Mine waste evaporator plant as above a kind of, its described liquid distributor both sides equipped with Tapping valve.
A kind of In-situ Leaching Uranium Mine waste evaporator plant as above, its described support tubing matter is plating Zinc steel pipe or UPVC manage or stainless steel tube.
A kind of In-situ Leaching Uranium Mine waste evaporator plant as above, its described frame uses rustless steel, Outer layer brushing antirust paint two-layer is used for anticorrosion, and frame uses welding manner to connect.
A kind of In-situ Leaching Uranium Mine waste evaporator plant as above, is arranged outside its described immersible pump The housing that PVC board makes, the gauze in the outer layer covers 1mm aperture of this housing.
Effect of the invention is that: the present invention provides a kind of process to produce during in-situ leaching uranium Method for waste water and device, the waste water i.e. In-situ Leaching Uranium Mine produced, the side promoted by immersible pump Waste water is uniformly distributed on matrix material by method, adds waste water under the effect of wind energy or solar energy The new method of fast evaporation, improves evaporation efficiency, solves the difficult difficult problem with accumulation of evaporation tank waste water, There is preferable economy and reasonability.Naturally, compared with steaming in evaporation tank with waste water, this device can be big Width improves evaporating waste water amount, and the floor space of building evaporation tank is greatly decreased.Meanwhile, apparatus of the present invention can To process high-salt wastewater, containing NaCl concentration at 9g/L or above, at other waste water such as reverse osmosis Science and engineering skill does not then process or cost is the highest.
Accompanying drawing explanation
Fig. 1 is a kind of In-situ Leaching Uranium Mine waste evaporator plant schematic diagram of the present invention；
Fig. 2 is vaporising device front view；
Fig. 3 is vaporising device top view；
Fig. 4 is a stay tube assembling front view；
Fig. 5 is a stay tube assembling plan view；
Fig. 6 is liquid distributor assembling front view；
Fig. 7 is liquid distributor assembling plan view.
In figure: 1. evaporation tank；2. immersible pump；3. vaporising device；4. rinse bath；5. matrix material； 6. frame；7. a stay tube；8. liquid distributor；9. pedestal.
Detailed description of the invention
Below in conjunction with the accompanying drawings with specific embodiment to a kind of In-situ Leaching Uranium Mine waste water evaporation of the present invention Device and method is further described.
Embodiment 1
As it is shown in figure 1, a kind of In-situ Leaching Uranium Mine waste water method of evaporating of the present invention, it includes Following steps:
A In-situ Leaching Uranium Mine water reuse immersible pump in evaporation tank 1 is promoted to vaporising device 3 by () In, outdoor temperature 20 DEG C, control wastewater temperature 16 DEG C；
B (), in vaporising device 3, waste water enters liquid distributor 8, equal by the liquid distributing hole on liquid distributor 8 Even is sprayed on matrix material 5 evaporation；The feed liquor time of waste water is 5min, liquid inlet volume is 290g/m2； Control air humidity 46%RH, wind speed 1.5m/s；Matrix material entirety moisture-holding capacity about 31kg；Described base Body material is polypropylene establishment cloth or carbon fiber woven cloth；
C () waits 25min, on matrix material 5, the waste water of absorption all evaporates completely, starts next time Waste water sprays；Evaporation tank 1 is entered from vaporising device 3 return of waste water out.
The other rinse bath 4 that arranges of described vaporising device 3, placing mass percent in rinse bath 4 is 20wt% Aqueous citric acid solution, use immersible pump this aqueous citric acid solution is sprayed on matrix material 5, to attached The crystal on matrix material 5 washs.
As shown in Figures 1 to 7, this vaporising device 3 includes that frame 6, frame 6 are fixed on pedestal 9 On, some stay tubes 7 be arranged in parallel and use pipe clamp to be fixed on frame 6 upper and lower, some pieces of bases Body material 5 is fixed between corresponding two piece setting up and down stay tube 7, the most flat above frame 6 Row arranges some liquid distributors 8, and liquid distributor 8 has several liquid distributing holes.
Described adjacent liquid distributor 8 spacing is 240mm, and it is 35mm that every liquid distributor 8 is offered spacing Liquid distributing hole, radially angle is 45 °, liquid distributing hole footpath 2mm.Liquid distributor 8 material is UPVC pipe. Liquid distributor 8 both sides are equipped with tapping valve.
Described stay tube 7 material is coating steel pipe.
Described frame 6 uses rustless steel, and outer layer brush antirust paint two-layer is used for anticorrosion, and frame 6 uses Welding manner connects.
The housing that PVC board makes, the outer layer covers 1mm of this housing are set outside described immersible pump 2 The gauze in aperture.
Embodiment 2
As it is shown in figure 1, a kind of In-situ Leaching Uranium Mine waste water method of evaporating of the present invention, it includes Following steps:
A In-situ Leaching Uranium Mine water reuse immersible pump in evaporation tank 1 is promoted to vaporising device 3 by () In, outdoor temperature 25 DEG C, control wastewater temperature 10 DEG C；
B (), in vaporising device 3, waste water enters liquid distributor 8, equal by the liquid distributing hole on liquid distributor 8 Even is sprayed on matrix material 5 evaporation；The feed liquor time of waste water is 5min, liquid inlet volume is 289g/m2； Control air humidity 39%RH, wind speed 2.1m/s；Matrix material entirety moisture-holding capacity about 30kg；Described base Body material is polypropylene establishment cloth or carbon fiber woven cloth；
C () waits 25min, on matrix material 5, the waste water of absorption all evaporates completely, starts next time Waste water sprays；Evaporation tank 1 is entered from vaporising device 3 return of waste water out.
The other rinse bath 4 that arranges of described vaporising device 3, placing mass percent in rinse bath 4 is 20wt% Aqueous citric acid solution, use immersible pump this aqueous citric acid solution is sprayed on matrix material 5, to attached The crystal on matrix material 5 washs.
As shown in Figures 1 to 7, this vaporising device 3 includes that frame 6, frame 6 are fixed on pedestal 9 On, some stay tubes 7 be arranged in parallel and use pipe clamp to be fixed on frame 6 upper and lower, some pieces of bases Body material 5 is fixed between corresponding two piece setting up and down stay tube 7, the most flat above frame 6 Row arranges some liquid distributors 8, and liquid distributor 8 has several liquid distributing holes.
Described adjacent liquid distributor 8 spacing is 240mm, and it is 35mm that every liquid distributor 8 is offered spacing Liquid distributing hole, liquid distributing hole footpath 2mm.Liquid distributor 8 material is stainless steel tube.Liquid distributor 8 both sides are equipped with row Liquid valve.
Described stay tube 7 material is stainless steel tube.
Described frame 6 uses rustless steel, and outer layer brush antirust paint two-layer is used for anticorrosion, and frame 6 uses Welding manner connects.
The housing that PVC board makes, the outer layer covers 1mm of this housing are set outside described immersible pump 2 The gauze in aperture.

Claims (7)

1. an In-situ Leaching Uranium Mine waste water method of evaporating, it is characterised in that the method includes walking as follows Rapid:
A In-situ Leaching Uranium Mine water reuse immersible pump in evaporation tank (1) is promoted to vaporising device by () (3) in, control wastewater temperature 10～20 DEG C；
B (), in vaporising device (3), waste water enters liquid distributor (8), by liquid distributor (8) Liquid distributing hole is sprayed at the upper evaporation of matrix material (5) uniformly；The feed liquor time of waste water is 3～10min, enters Liquid measure is 250～350g/m2；Control air humidity 35～50%RH, wind speed 1～3m/s；Matrix material is whole Body moisture-holding capacity is 30～40kg；Described matrix material is polypropylene establishment cloth or carbon fiber woven cloth；
C () waits 20～30min, the waste water of the upper absorption of matrix material (5) all evaporates completely, starts Waste water sprays next time；Evaporation tank (1) is entered from vaporising device (3) return of waste water out；
Described vaporising device (3) is other arranges rinse bath (4), places percent mass in rinse bath (4) Ratio is the aqueous citric acid solution of 10～30wt%, uses immersible pump that this aqueous citric acid solution is sprayed at matrix material On material (5), the crystal being attached on matrix material (5) is washed.
2. the ground for the In-situ Leaching Uranium Mine waste water method of evaporating described in claim 1 soaks and adopts Uranium mine waste evaporator plant, it is characterised in that this vaporising device (3) includes frame (6), machine Frame (6) is fixed on pedestal (9), and some stay tubes (7) be arranged in parallel and use pipe clamp to be fixed on Frame (6) upper and lower, some block matrix materials (5) are fixed on corresponding two setting up and down Root props up between stay tube (7), and also be arranged in parallel some liquid distributors (8) in frame (6) top, cloth liquid Several liquid distributing holes are had on pipe (8)；
Described adjacent liquid distributor (8) spacing is 200～300mm, between every liquid distributor (8) is offered Away from for 30～40mm liquid distributing hole, liquid distributing hole footpath 1～3mm.
A kind of In-situ Leaching Uranium Mine waste evaporator plant the most according to claim 2, it is characterised in that Described liquid distributor (8) material is UPVC pipe or stainless steel tube.
A kind of In-situ Leaching Uranium Mine waste evaporator plant the most according to claim 2, it is characterised in that Described liquid distributor (8) both sides are equipped with tapping valve.
A kind of In-situ Leaching Uranium Mine waste evaporator plant the most according to claim 2, it is characterised in that Described stay tube (7) material is coating steel pipe or UPVC pipe or stainless steel tube.
A kind of In-situ Leaching Uranium Mine waste evaporator plant the most according to claim 2, it is characterised in that Described frame (6) uses rustless steel, and outer layer brushing antirust paint two-layer is used for anticorrosion, and frame (6) is adopted Connect with welding manner.
A kind of In-situ Leaching Uranium Mine waste evaporator plant the most according to claim 2, it is characterised in that Described immersible pump (2) outside arranges the housing that PVC board makes, the outer layer covers 1mm hole of this housing The gauze in footpath.
CN201410820347.0A 2014-12-25 2014-12-25 A kind of In-situ Leaching Uranium Mine waste evaporator plant and method Active CN104609487B (en)

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Publication number Priority date Publication date Assignee Title
CN114477337A (en) * 2018-11-13 2022-05-13 核工业北京化工冶金研究院 Device and method for accelerating acid-method-based in-situ leaching uranium mining wastewater evaporation
CN109970264B (en) * 2019-03-08 2021-09-17 中核通辽铀业有限责任公司 Method for controlling malodorous pollutants in evaporation pond of in-situ leaching uranium mining mine
CN110127922B (en) * 2019-05-21 2021-11-05 广州南大环保科技有限公司 Multi-metal associated gold ore dressing waste liquid treatment system and method

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JPS5861882A (en) * 1981-10-07 1983-04-13 Kimura Kakoki Kk Evaporating and concentrating method
ES2121525B1 (en) * 1995-10-11 1999-09-16 Krebs & Co Ag Krebs & Co Sa Kr SALT PRODUCTION SYSTEM BY FORCED EVAPORATION.
CN101070195A (en) * 2006-05-12 2007-11-14 乌鲁木齐金穗剑技术开发有限公司 Spray natural-wind dry waste-water treatment method
CN102092802A (en) * 2009-12-11 2011-06-15 滨海环保装备（天津）有限公司 Tree-like water distribution device for multiple-effect distillation seawater desalination and work method thereof
CN101913668B (en) * 2010-08-23 2013-03-27 杨承峰 Evaporative sewage treatment device
CN102107922A (en) * 2010-12-27 2011-06-29 林立峰 Technology and device for treating industrial wastewater
CN103553166A (en) * 2013-11-14 2014-02-05 天津辰创环境工程科技有限责任公司 Device and method of treating wastewater with high salt content by utilizing waste heat of circulating water
CN203668011U (en) * 2013-12-21 2014-06-25 哈尔滨锅炉厂有限责任公司 Branch salt sunning frame for salt pan

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