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<正> 碟式分离机由于它具有的各种优越性能,故广泛用于国民经济的各个部门,且是国内外发展较快,品种最多的一种离心分离设备,但制造分离机的关键另件;转鼓及盖的材料问题,却是国内各有关单位颇感兴趣的问题。本文将扼要介绍DPD—445型淀粉分离机转鼓及盖所用的新材料—7424钢(即00Cr13Ni 6 MoNb钢)的有关性能以及国内外分离机的转鼓用钢,作一点滴判析,供有关方面参考。 相似文献
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介绍了GTDP215VC-03型分离机的设计特点、参数、结构及其在高岭土分离浓缩中的应用。 相似文献
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本文主要就全液压推土机行驶驱动系统的匹配设计方法作了研究,并成功将其运用于160ph全液压推土机设计。样机试验证明参数匹配合理,为驱动系统参数计算提供了依据。 相似文献
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针对目前关于并联异构式采样机偏倚试验研究较少的现状,提出了并联异构式采样机的偏倚试验方法,采用2款并联异构式采样机的偏倚试验对此方法进行了例证。通过对Y型和S型的整系统和分系统进行偏倚试验,结果表明,这2款并联异构式采样机的偏倚值符合国家相关标准要求。 相似文献
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针对大榭石化传统油泥处理工艺效果差、能耗高的情况,提出采用螺旋固液分离机系统对传统工艺进行升级,并进行了工业化应用试验。工业化装置运行结果表明,旋固液分离机系统处理含油污泥在技术上可行,工业化装置运行稳定,实际应用效果良好,在一定程度上实现了污泥减量化目标,为实施无害化和资源化打下基础。 相似文献
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研究将磁力传动技术应用于玻璃容器的真空搅拌以取代传统的搅拌塞密封。针对玻璃标准磨口的特点,介绍了该磁力传动器的结构特点、设计要点.并将试制样机与传统搅拌塞密封装置作了密封比对试验。 相似文献
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针对进口循环换热分离器投资高、维护周期长等问题,开发了国产循环换热分离器。介绍了国产循环换热分离器的结构和工作原理。对该循环换热分离器在宁煤400万t/a煤炭间接液化示范项目中的应用情况进行了工业运行考核,并与进口循环换热分离器的性能进行了对比,结果表明:在实际油气量101%工况下,国产循环换热分离器传热系数691.4 W/(m^2·K),有效传热温差47.8℃,压降80 kPa,均优于设计指标;国产循环换热分离器热侧和冷侧温差较高,热侧压差较低,在传热、阻力降等方面优于进口设备。 相似文献
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根据酸性水装置的特点,采用油水分离器动态脱油取代原脱油罐沉降静态脱油,缩短了工艺流程,消除了酸性水大罐的泄漏,介绍了油水分离器在酸性水装置中的成功应用以及油水分离器的结构组成、工作过程、使用特点及工作原理。 相似文献
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Recently, the rotational particle separator (RPS) was introduced as a new technique for separating solid and/or liquid particles of 0.1 μm and larger from gases. In this patented technique the principles of centrifugation are exploited to enhance separation of small‐sized phases and particulate matter of density different from the carrier fluid. Practical designs of the RPS available in the market include equipment for purifying gases of industrial processes and portable air cleaners for domestic appliances. New developments are made in the area of the offshore industry. It concerns the separation of oil droplets from water and the separation of condensate, oil, and sand from natural gas. A particular feature of both designs is that the filter element is freely mounted in bearings and rotates, without the need of a motor, by introducing a swirl in the fluid flowing towards the filter element. The design is particularly suited for operation under high pressures as the rotating filter element is fully contained within a cylindrical pipe. The shaft does not pin through the external wall, so no sealing is required. Based on known RPS design principles and fluid flow relations an oil‐water separator is designed and tested. 相似文献
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介绍了风力干法分选机的结构、工作原理、工艺流程、特点和应用范围,说明了干法选煤是3大选煤方法的一个有益的补充,有自己的独特之处,只要合理选择和正确使用,一样能给用户带来可观的经济效益和社会效益。 相似文献
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《分离科学与技术》2012,47(17):2603-2612
Supersonic separator is a new technology based on the adiabatic expansion of swirling gas flow, and at present it has demonstrated great application potential in separating and processing droplet liquid contained in natural gas. However, its coefficient of performance is still low and there seems to be a large gap in the method that evaluates the separation efficiency in a satisfactory manner. In order to promote the wide application of this technology in the dehydration field, it is necessary to find a new and feasible approach that can be used to predict the flow characteristic and separation performance inside a supersonic separator. In this paper, a comprehensive three-dimensional fluid numerical model to study the flow behavior and separation efficiency in a supersonic separator was established coupled with the discrete particle model (DPM). The mixture of air and water droplets was chosen as working fluid. The gas phase was modeled with compressible Navier–Stokes equations for two-phase flow and the RSM turbulence model was taken into account. The droplet phase was modeled with the discrete particle model (DPM), in which the droplets are assumed to have the same sphere shape and ignore the phase transition and nucleation process. A pilot test facility was carried out to validate the numerical model. The experimental results not only indicate that the new dehydration device can efficiently separate the liquid droplets from wet gas, but also prove that the numerical results were great agreements with the experimental results. Furthermore, based on the proposed numerical approach, the gas-droplet turbulent flow structures were predicted, the effects of different structure parameters and operation conditions on the separation efficiency were also investigated. The current works settle a foundation for further explorations on the supersonic gas–liquid separation flows inside a supersonic separator as well as the possible new applications. 相似文献