WO2019100957A1 - Dispositif d'extraction de minéraux à partir de saumure à l'aide d'énergie solaire - Google Patents

Dispositif d'extraction de minéraux à partir de saumure à l'aide d'énergie solaire Download PDF

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Publication number
WO2019100957A1
WO2019100957A1 PCT/CN2018/114988 CN2018114988W WO2019100957A1 WO 2019100957 A1 WO2019100957 A1 WO 2019100957A1 CN 2018114988 W CN2018114988 W CN 2018114988W WO 2019100957 A1 WO2019100957 A1 WO 2019100957A1
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WO
WIPO (PCT)
Prior art keywords
pump
heat carrier
brine
solar collector
heat exchanger
Prior art date
Application number
PCT/CN2018/114988
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English (en)
Chinese (zh)
Inventor
雷政军
翟腾飞
高超
Original Assignee
西安威西特消防科技有限责任公司
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Application filed by 西安威西特消防科技有限责任公司 filed Critical 西安威西特消防科技有限责任公司
Publication of WO2019100957A1 publication Critical patent/WO2019100957A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/02—Crystallisation from solutions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar 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
    • 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

Definitions

  • the utility model relates to the technical field of comprehensive utilization of brine, and more particularly to a device for extracting minerals in brine water by using solar energy.
  • the salt lake brine contains abundant mineral resources such as magnesium, lithium, calcium and potassium. China's salt lake resources are mainly distributed in Qinghai, Cambodia, Xinjiang and other provinces. However, because the salt lakes in these provinces are often sparsely populated, infrastructure is not perfect, and energy supply is insufficient, it has brought serious constraints to the development and utilization of these resources.
  • the devices for extracting minerals in brine mainly include evaporation crystallization method, precipitation method, salting out method, carbonization method, flotation method, extraction method, ion exchange adsorption method, calcination method, membrane separation method and the like.
  • the existing production process uses natural beach drying and evaporation crystallization, but the sun exposure time of Rizhao Beach often reaches 3 to 6 months, which severely limits the improvement of production efficiency.
  • the industrial evaporative crystallization method is not suitable for direct application in the salt lake area due to its huge energy consumption, and the promotion of brine extraction and comprehensive utilization technology is also limited. Therefore, it is particularly important to seek a simple, efficient and energy-saving extraction technology.
  • the utility model provides a device for extracting minerals in brine water by using solar energy, which is economical, efficient, energy-saving and environmentally friendly, and is suitable for large-scale promotion of salt lake area.
  • a device for extracting mineral water in a brine by using solar energy comprising: a solar collector, a heat exchanger and an evaporation crystallization unit; wherein the organic heat carrier in the solar collector is a mineral oil type organic heat carrier and/or Or a synthetic organic heat carrier; the organic heat carrier in the solar collector has a temperature of more than 120 ° C after heating.
  • the evaporation crystallization unit includes an evaporation crystallizer, a condenser, a condensate tank, and a pump; the pump includes a heat exchanger pump, a circulation pump, a slurry pump, a brine feed pump, and a vacuum pump.
  • the heat exchanger is provided with a heat carrier inlet, a heat carrier outlet, a brine feed port and a brine discharge port; the heat carrier inlet of the heat exchanger is connected to the solar collector through a heat exchanger pump, the heat carrier The outlet is connected to the solar collector through a circulation line; the brine feed port is connected to the raw material tank through a change circulation pump, and the brine discharge port is connected to the evaporation crystallizer.
  • a vapor outlet of the evaporative crystallizer is connected to a condenser, a rear end of the condenser is provided with a condensate tank; the condensate tank is connected with a vacuum pump; and a circulation pipe is formed at the bottom of the evaporating crystallizer through a pipe and a slurry pump A slurry outlet is provided between the slurry pump and the return line.
  • the steam outlet of the evaporative crystallizer can also be connected to the MVR device to reheat the heat carrier after heat exchange to improve the heat utilization rate.
  • An organic heat carrier storage tank is disposed between the solar heat collector and the heat exchanger, and a storage tank pump is disposed between the solar heat collector and the organic heat carrier storage tank.
  • the solar collector is a vacuum tube solar collector, a metal absorber vacuum tube collector, and a heat pipe vacuum tube collector.
  • the organic heat carrier is heated to a temperature greater than 180 ° C.
  • the evaporation crystallization unit is a single-effect evaporation crystallizer or a multi-effect evaporation crystallizer.
  • the solar collector heats the organic heat carrier to 180 ° C, stores it in an organic heat carrier storage tank, adds brine from the raw material pool through the brine feed port, and performs cyclic heat exchange with the organic heat carrier in the heat exchanger.
  • the hot organic heat carrier is recycled to the solar collector through the circulation pipeline, and the heated brine is evaporated and crystallized in the evaporation crystallizer.
  • the steam is discharged from the upper outlet for recycling, and the mineral crystal slurry is discharged from the crystal slurry outlet.
  • the desired minerals were obtained by centrifugation in a centrifuge.
  • the mineral oil type organic heat carrier is one or more of a mixture of a paraffin-based hydrocarbon, a mixture of a cycloalkyl hydrocarbon, and an aromatic hydrocarbon.
  • the synthetic organic heat carrier comprises: an alkylbenzene, an alkylbiphenyl, a mercapto and a dinonyltoluene, an azeotropic mixture of biphenyl and diphenyl ether, a terphenyl and a partially hydrogenated terphenyl, an alkyl diphenyl ether, One or more of an aliphatic hydrocarbon, a polyalphaalkane, a silicone oil, and a fluorocarbon.
  • the utility model utilizes the characteristics of local light intensity and adapts to local conditions, proposes a device that uses solar collectors instead of traditional hot steam, evaporates and crystallizes the brine, extracts the required minerals, and effectively saves energy. Reducing the requirements for infrastructure is suitable for large-scale promotion in the salt lake area.
  • the heat transfer medium of the organic heat carrier proposed by the utility model rejects the heat conduction of the traditional water medium, and the organic heat carrier with higher heat conduction temperature is used as the heat conduction medium, and the brine can be directly heated to above the boiling point, thereby greatly improving the evaporation crystallization efficiency of the brine.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • An apparatus for extracting minerals in a brine by using solar energy comprising a solar collector 1, a heat exchanger 3, and an evaporation crystallization unit; the evaporation crystallization unit comprising an evaporation crystallizer 5, a condenser 6, a condensate tank 7, and a pump;
  • the pump comprises a heat exchanger pump 9, a circulation pump 10, a slurry pump 11, a brine feed pump 12, and a vacuum pump 13;
  • the heat exchanger 3 is provided with a heat carrier inlet 21, a heat carrier outlet 22, and a brine feed port.
  • the heat carrier inlet 21 of the heat exchanger 3 is connected to the solar collector 1 via a heat exchanger pump 9, and the heat carrier outlet 22 is connected to the solar collector 1 through a circulation line
  • the brine feed port 24 is connected to the material pool via a changeover pump 10, the brine outlet 23 is connected to the evaporation crystallizer 5; the vapor outlet of the evaporation crystallizer 5 is connected to a condenser 6, the condensation
  • the rear end of the device 6 is provided with a condensate tank 7; the condensate tank is connected to a vacuum pump 13.
  • a circulation line is formed at the bottom of the evaporating crystallizer 5 through a pipe and a slurry pump 11, and a slurry discharge port is provided between the slurry pump 11 and the return line.
  • An organic heat carrier storage tank 2 is disposed between the solar heat collector 1 and the heat exchanger 3, and a storage tank pump 8 is disposed between the solar heat collector 1 and the organic heat carrier storage tank 2.
  • the solar collector heats the organic heat carrier to 180 ° C, stores it in an organic heat carrier storage tank, adds brine from the raw material pool through the brine feed port 24, and performs cyclic heat exchange with the organic heat carrier in the heat exchanger 3. After the heat exchange, the organic heat carrier is recycled to the solar collector 1 through the circulation pipeline, and the heated brine is evaporated and crystallized in the evaporation crystallizer 5, and the steam is discharged from the upper outlet and condensed and recycled through the condenser 6.
  • the mineral crystal slurry is discharged from the crystal slurry outlet and centrifuged to obtain the desired minerals.
  • the steam outlet of the evaporative crystallizer can also be connected to the MVR device to reheat the heat carrier after heat exchange to improve the heat utilization rate.
  • Embodiment 2 The device of the present invention is compared with the prior art
  • the apparatus of the present invention and the vapor source evaporation crystallization apparatus can reach a high level in terms of extraction efficiency, extraction purity and treatment cycle, but the utility model directly utilizes solar energy, energy saving and environmental protection, and the substrate The facility is less dependent. Although the natural beach drying method directly uses solar energy, the floor space is huge, and the processing cycle and extraction efficiency are far lower than the utility model.

Abstract

L'invention concerne un dispositif pour extraire un minéral d'une saumure à l'aide d'énergie solaire, comprenant un collecteur solaire (1), un échangeur de chaleur (3) et une unité de cristallisation par évaporation. Le caloporteur organique dans le collecteur solaire (1) est un caloporteur organique de type huile minérale et/ou un caloporteur organique synthétique, et le caloporteur organique est chauffé à une température supérieure à 120 °C. L'unité de cristallisation par évaporation comprend un cristalliseur d'évaporation (5), un condenseur (6) et un réservoir de condensat (7). L'échangeur de chaleur (3) est pourvu d'une entrée de caloporteur (21), d'une sortie de caloporteur (22), d'un orifice d'alimentation de saumure (24) et d'un orifice d'évacuation de saumure (23). L'entrée de caloporteur (21) est reliée au collecteur solaire (1) par l'intermédiaire d'une pompe d'échangeur de chaleur (9), et la sortie de caloporteur (22) est reliée au collecteur solaire (1) par l'intermédiaire d'une conduite de circulation. L'orifice d'alimentation de saumure (24) est relié au réservoir de matière première par l'intermédiaire d'une pompe de circulation (10), et l'orifice d'évacuation de saumure (23) est relié au cristalliseur d'évaporation (5). Une sortie de vapeur du cristalliseur d'évaporation (5) est reliée à un condenseur (6), et une partie arrière du condenseur (6) est pourvue du réservoir de condensat (7). Le réservoir de condensat est relié à la pompe à vide (13). Le fond du cristalliseur d'évaporation (5) forme une conduite de circulation à travers un tuyau et une pompe à suspension épaisse de cristaux (11), et un orifice d'évacuation de suspension épaisse de cristaux est disposé entre la pompe à suspension épaisse de cristaux (11) et la conduite de circulation.
PCT/CN2018/114988 2017-11-22 2018-11-12 Dispositif d'extraction de minéraux à partir de saumure à l'aide d'énergie solaire WO2019100957A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721569643.3U CN207684929U (zh) 2017-11-22 2017-11-22 一种利用太阳能提取卤水中矿物质的装置
CN201721569643.3 2017-11-22

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WO2019100957A1 true WO2019100957A1 (fr) 2019-05-31

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CN (1) CN207684929U (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
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CN114504838A (zh) * 2022-02-08 2022-05-17 沃力雅环保科技(上海)有限公司 一种高温连续蒸发结晶设备及其结晶工艺

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* Cited by examiner, † Cited by third party
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CN107697968A (zh) * 2017-11-22 2018-02-16 西安威西特消防科技有限责任公司 一种利用太阳能提取卤水中矿物质的方法和装置
CN207684929U (zh) * 2017-11-22 2018-08-03 西安威西特消防科技有限责任公司 一种利用太阳能提取卤水中矿物质的装置

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CN207680080U (zh) * 2017-11-22 2018-08-03 西安威西特消防科技有限责任公司 一种太阳能蒸发提卤设备

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US20110048006A1 (en) * 2009-09-03 2011-03-03 Cap Daniel P Solar desalinization plant
CN102336448A (zh) * 2011-08-29 2012-02-01 陶欣 盐水处理系统及方法
CN202208652U (zh) * 2011-08-29 2012-05-02 陶欣 盐水处理系统
CN103626209A (zh) * 2013-11-29 2014-03-12 西藏金睿资产管理有限公司 适用于高原地区的高效热能回收利用方法及系统
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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