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从盐田蒸发结晶机理出发 ,分析了盐田生产的影响因素 ,概述了察尔汗盐湖盐田系统生产现状及工艺技术、管理中存在的问题 ,提出了改善盐田生产系统的措施和优化方法 ,并与国外同类型卤水盐田滩晒指标进行了对比。结论认为 ,通过转变观念 ,提高科学管理水平 ,及时对各方面进行“调整”,应用系统论 ,保证钠盐池与光卤石池物料平衡、面积比例最优 ,并使调节池富有弹性 ,是察尔汗盐湖所有钾肥企业实现盐田系统乃至钾肥生产系统优质、稳产、高产的一项长期的战略方针 相似文献
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虽然国家“七五”重点工程一青海钾肥厂已转入生产阶段近九个年头，但对用盐湖卤水通过大面积深水盐田（池内水深1M左右）晒制光卤石在我国至今缺乏成熟的经验。本文就是通过对青海钾肥厂十平方公里盐田的西光卤石池光卤石矿六年的定期取样分析资料，总结出深水盐田光卤石矿的物化特性及其形成机理，以便为其它与将来特别是青钾二期工程更大面积的盐田生产和盐田管理提供基础和指导。本文是目前对深水盐田光卤石矿物化特性进行全面描述的唯一资料。 相似文献
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根据察尔汗盐湖别勒滩卤水等温蒸发试验数据,结合大量生产取样分析资料,对盐田光卤石矿生产机理及其控制因素作了分析研究,并提出了管理措施。 相似文献
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首次从化学工程的角度 ,将盐田系统作为一类特殊的化学反应器和无机盐分离设备进行了详细的论述。在大量试验基础上 ,系统地分析和研究了 Na+,K+,Mg2 +∥Cl-,- H2 O四元水盐体系卤水在天然蒸发状态下的宏观蒸发动力学参数。从理论上对与卤水蒸发相关的多种参数进行了分析和合理简化 ,概述了卤水蒸发过程中的质量传递规律。并在此基础上通过计算机模拟方法建立了四元水盐体系高浓度卤水在特定地域中进行天然蒸发的卤水宏观蒸发动力学模型 ,证明了多种简化和理论假设的合理性。对该数学模型在盐湖卤水开发中的盐田设计、盐田生产的现代化自动管理和控制等进行了探讨。在卤水蒸发动力学模型建立的过程中 ,针对实际生产过程的需要 ,通过多种参数的分析 ,建立了多种参数关系 相似文献
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提出了青海盐湖钾肥公司据生产需要 ,开辟新的采卤区后 ,卤水组份发生变化问题。根据分析与试验探讨了CaCl2 在盐田生产中的影响及应采取的措施 相似文献
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目前对察尔汗盐湖蒸发量的研究主要集中在气象-水文因素与卤水蒸发量定量关系,缺乏在不同时间尺度下盐湖蒸发量的驱动因素动态变化研究。利用2020年11月5日—2023年5月1日察尔汗盐湖盐田的空气温度、露点温度、风速、相对湿度、总辐射日累计以及盐田的蒸发量、水温、水位等监测数据,结合获取的察尔汗盐湖补给河流格尔木河流量等水文资料,采用相关性分析、多元回归模型等方法探讨了不同时间尺度下盐田蒸发作用与气象-水文因素之间的关系。研究表明,不同盐田的水温、水位、淡水蒸发量变化保持一致,卤水蒸发量变化与盐田密度有关。随着时间尺度的增大,蒸发量与气象要素之间的相关性增强。察尔汗盐田蒸发量在逐小时与逐月尺度主要受到环境温度的影响,日尺度下主要受到太阳辐射的影响。在极端天气作用下河流水文与盐湖微气象因子呈同步变化,对蒸发量的影响具有滞后性。这一研究结果可为盐田生产工艺优化提供理论指导。 相似文献
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大柴旦湖滨日晒盐田的建造 总被引：2，自引：0，他引：2
在对大柴旦湖区水文地质条件进行分析基础上认为，湖表卤水东北部的湖滨地带，地表具有１．５－２．０了的沙质粘土层，适用建造土质日晒盐田。在对土壤粒度分析基础上，提出了进行盐田建高中防止卤水渗漏的几种措施。 相似文献
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The Salina Basin historically has been an exploration desert—a home of dryholes. Although this basin, which underlies much of north-central Kansas, may never be a prolific source of hydrocarbons, recent research into the maturation and geochemistry of organic matter and oils in Kansas can provide guidelines for a new exploration strategy. The Salina Basin is similar to the oil-productive Forest City Basin in northeastern Kansas in many ways. Both basins originated as a single large basin (i.e., the North Kansas Basin) prior to the rise of the Nemaha Uplift in Late Mississippian-Early Pennsylvanian time. Their Paleozoic stratigraphy thus is similar and the axes of both basins are presently at approximately the same depth. Thermal maturation modeling and available organic-matter maturation data indicate that the lower Paleozoic rocks in the axes of both basins are in the early stages of oil generation. In the Forest City Basin the Ordovician Simpson Group is the deepest known hydrocarbon source-rock—oil-reservoir interval, and by analogy, exploration tests in the Salina Basin, at a minimum, should penetrate through this stratigraphic interval. Ordovician Simpson Group shales in the Forest City Basin are the source rocks for a geochemically distinct oil, which also occurs in Ordovician reservoirs in the extreme southern end of the Salina Basin. To increase the odds of success in an exploration program in the Salina Basin, wildcat wells should be drilled where thermal maturation is greatest. The broad NW–SE-trending basin axis is the most logical area. Exploration tests along this axis in the northern end of the basin may have an extra advantage as organic matter in the Simpson Group may be more thermally mature because of greater burial depth during the Cretaceous. Along the eastern margin of the nearby Central Kansas Uplift and Pratt Anticline, several Paleozoic geologic structures, some of which contain major oil fields, are attributable to tectonic reactivation along the western margin of the Precambrian Central North American Rift System (CNARS). Prospective structural trends in the Paleozoic section of the Salina Basin are anticipated to be associated with this underlying tectonic boundary. The western margin of the CNARS trends NNE–SSW where it passes under the axis of the Salina Basin in northeastern Lincoln and southeastern Mitchell counties. This area is sparsely drilled, with less than two tests per township. If an exploration program can define lower Paleozoic structural closures in this region, these structures may represent the best chance for future petroleum discoveries. 相似文献
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Adriana García 《Journal of Paleolimnology》1999,21(3):307-323
Charophyte (Charales, green macroscopic algae) assemblages found in Quaternary shoreline sediments from Salina del Bebedero, Argentina, are described in detail, illustrated, and statistically analysed. Fossil gyrogonites, Late Pleistocene and Holocene in age, of Chara cf. hispida var. major (Hartman) Wood, Chara halina García, Chara hornemannii Wallmann, Chara bulbillifera (Donterberg) García, Lamprothamnium haesseliae Donterberg and Lamprothamnium succinctum (Braun ex Ascherson) Wood were identified. A comparison with extant charophyte species of similar ecological requirements allowed for an accurate systematical determination and provided useful data for complementary palaeoecological and palaeobiogeographical approaches. On this basis, a reconstruction of palaeo-salinities for the Salina del Bebedero lake, represented by eleven palaeo-beaches, is proposed. Also the associations of charophytes with the ostracods Cyprideis sp., Limnocythere sp., Pampacythere sp., Cypridopsis sp., Darwinula sp., Ilyocypris gibba (Randohr) Brady and Norman, and the foraminifers Ammonia sp., Elphidium gunteri Cole, Quinqueloculina sp., and one species of Discorbacea are analysed, since they are present in both the fossil and modern environments. 相似文献
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Kansas produces both conventional energy (oil, gas, and coal) and nonconventional (coalbed gas, wind, hydropower, nuclear,
geothermal, solar, and biofuels) and ranks the 22nd in state energy production in the U.S. Nonrenewable conventional petroleum
is the most important energy source with nonrenewable, nonconventional coalbed methane gas becoming increasingly important.
Many stratigraphic units produce oil and/or gas somewhere in the state with the exception of the Salina Basin in north-central
Kansas. Coalbed methane is produced from shallow wells drilled into the thin coal units in southeastern Kansas. At present,
only two surface coal mines are active in southeastern Kansas. Although Kansas has been a major exporter of energy in the
past (it ranked first in oil production in 1916), now, it is an energy importer. 相似文献
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针对氯化钾生产中不同类型的光卤石原矿,因其镁钾比和钠钾比失调,而影响浮选工艺的控制,使最终产品质量和收率低下,不能使原矿得到充分有效利用。通过原矿的掺兑可以改善原矿的组成结构,并可调整原矿镁钾比和钠钾比。比例掺兑后不仅使原矿得到有效回收和利用,也大幅度提高了最终产品氯化钾的质量和产量,在实际生产中具有积极的推动作用。 相似文献
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马海盐湖钾资源经过十几年的开发,在生产氯化钾过程中排放了大量的含钾尾盐,随着盐湖钾资源持续的开发,马海盐湖的钾资源已凸显日益枯竭的趋势,为高效利用马海盐湖的钾盐资源,近年来开展了对浮选法生产氯化钾过程所排放的含钾尾盐矿的开发利用技术研究。介绍了采用强制搅拌溶浸技术,溶浸马海盐湖含钾尾矿中钾资源的试验情况及所取得的试验结果,并对试验过程中出现的问题进行了讨论。 相似文献
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硫酸钾是一种有着广泛应用的工业原料和农业肥料,其生产技术主要是通过海水或卤水中的硫酸盐与氯化钾反应制得。我国盐湖资源和盐类储量极其丰富,这为硫酸钾的制备生产提供了更多途径。但对于不同水化学类型的盐湖,需采取不同的提钾制备硫酸钾工艺路线。在以往盐湖钾盐提取和硫酸钾生产技术研究的基础上,针对碳酸盐型盐湖扎布耶盐湖中钾盐和硫酸钾的提取和制备方案进行了论述及设计,并指出了蒸发结晶法、化学沉淀法和吸附及离子交换法等几种方法在技术上都有其可行性。但在工业生产中可以考虑将这几种方法有机结合,以达到钾的最大富集,降低硫酸钾生产成本,并有利于保护环境。 相似文献
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通过对硫酸钾工业赖于存在的钾盐资源概况、产业现状、国内外钾肥市场的发展变化、以及主要生产工艺技术研究进展的分析 ,指出了硫酸钾工业目前存在的问题 ,并进一步揭示硫酸钾工业未来发展的趋势。 相似文献
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青海盐湖资源丰富,从单一钾肥产品向石油天然气与盐湖化工结合的下游产品发展,生产氢氧化钾、碳酸钾、乙炔、氯乙烯、聚氯乙烯、合成氨和尿素,实现循环经济和综合利用,"青海100万吨钾肥综合利用工程",势在必行。运用安全系统工程的方法,分析了所采用的工艺技术以及生产设施设备在项目投产运行后存在的主要危险、有害因素及其产生的危险、危害后果;提出了消除、预防或减弱危险性、危害程度的对策措施,以实现项目的本质安全和安全生产。 相似文献
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察尔汗盐湖是我国最大的可溶性钾镁盐矿床,以相图理论为依据,介绍了反浮选—冷结晶法从含钠光卤石制取氯化钾的相图分析。 相似文献