共查询到20条相似文献,搜索用时 250 毫秒
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王小霞 《中国石油和化工标准与质量》2019,(15):144-145
本文主要分析了矿山地质灾害的成因以及勘察方法,重点对造成矿山地质灾害的方法以及对矿山地质灾害进行勘察的方法进行了相关的讨论,对矿山地质灾害进行防治,可以将矿山开采的效率进行有效的提升,将生产过程当中的安全性进行保证。通过对勘察方法进行研究,以期保证矿区的正常开采,将开采的效率进行有效的提升。 相似文献
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本文主要针对辽河油田地区高裂缝启裂泵压等现象进行分析,对部分岩性坚硬,井部分应力较为集中、井筒附近污染、孔眼弯曲摩阻等原因所引起的情况进行综合分析,研究了井下多脉冲加载破岩启裂装置,对全隔断式延时点火装置的结构及井下枪身装置进行综合分析,对枪身强度进行了校核和计算,通过进行模拟试验和现场应用,取得了较好的实验效果,可以进行推广。 相似文献
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张雨丝 《建筑玻璃与工业玻璃》2009,(4)
在实验室和工厂进行热钢化平板玻璃生产时,多采用单射流和多射流对成型了的玻璃进行冷却。首先,应该考虑到辐射的转移和残余应力对玻璃的最后部分的影响。三维流体动力学计算模型(计算流体力学)的研发,帮助我们对气体的流动进行分析,并确定钢化过程当中玻璃表层的热交换情况。然后,将结构和应力松弛引入三维有限元模型中进一步进行分析,采用光弹性测量的方法对钢化玻璃表面及周边范围内的残余应力进行测量,这个数值可以对玻璃的钢化厚度进行验证。通过在多射流的设备中进行的分析中发现,温度分布和残余应力都是均匀分布的。最后,采用超声波的新方法来对钢化的残余应力进行测量。采用这种方法进行单射流对钢化玻璃进行冷却实验,得到的实验结果与预测数值相一致。 相似文献
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本文针对去除化学反应中水分的影响因素,从固体原料,液体原料,溶剂,反应设备,空气中的水分及反应生成水等方面制定措施加以控制.对原料制定水分标准,进行干燥或进行脱水操作,对设备进行干燥,使用干燥的惰性气体进行保护,对生成的水分进行共沸或反应进行去除等措施提供可参考的建议. 相似文献
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应用Excel对受力复杂的转轴强度进行计算,对主应力的轴向分布进行数值模拟,并应用强度理论对轴的危险截面进行强度校核和再设计.结果表明,应用Excel可以快速、准确的进行复杂的强度校核并自动进行再设计,提高了设计效率和质量. 相似文献
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《分离科学与技术》2012,47(12):1887-1897
Recovering membrane backwash water (MBW) can improve productivity and reduce the costs of membrane treatment systems. To verify a recovery scheme in which MBW is pre-treated and recycled into an equalization tank, two lab-scale flocculation-microfiltration (MF) membrane systems were constructed. One membrane system used water from the Luan River (the Luan River system), and the other used a blend of pre-treated membrane backwash water plus water from the Luan River in a 1:9 ratio (the mixed water system). The operating parameters and coagulant dosages were the same for both systems. Ferric chloride was used as a coagulant in the pre-treatment of membrane backwash water, and powdered activated carbon (PAC) was added to improve water quality. Organic compounds, as represented by UV254 measurements, in the membrane backwash water were predominantly low molecular weight species (MW < 1 kDa), whereas the DOC fraction consisted primarily of compounds with an MW greater than 30 kDa and substances with an MW less than 1 kDa. These two fractions of organics were effectively reduced by flocculation and adsorption. No differences in the quality of treated water from the two membrane systems were observed. The results indicated that the scheme of recovering membrane backwash water was feasible. 相似文献
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特稠油污水处理技术研究 总被引:1,自引:0,他引:1
采用自己研制的药剂对辽河油田特筒油污水进行破乳和净水试验,找出了主要影响因素,最终确定了处理工艺的操作条件,结果表明,使用破乳剂D1,可使油的回收率大于99%,絮凝剂A中添加了收缩絮体的化学药剂B之后作为净水剂,使积杂量小于5%(体积比),同时,处理后的水完全达到辽河油田要求的指标,即油含量小于5mg/L,积杂量小于15mg/L,技术先进,社会环境及经济效益显著。 相似文献
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复合型铁盐混凝剂研究进展 总被引:2,自引:0,他引:2
复合型铁盐混凝剂在聚合硫酸铁和聚合氯比铁基础上研究成功的新型高效净水剂之一,具有品种多,生产方法多,原料来源多的特点。应用于原水和废水净化处理上,其凝聚和处理效果优于其他无机混凝剂。按阴离子复合,阳离子复合,多种离子复合等3类,综述了近年来我国复合型铁盐混凝剂开发研究的进展情况。 相似文献
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SORALCHIN炼油厂化学水处理装置一级除盐系统原设计采用的是3台并列(2台运行1台备用)的一级反渗透工艺流程,单台反渗透装置采用三段膜处理技术。该装置2006年7月份投产,运行4个月后,反渗透膜元件出现严重结垢现象,三段甚至被盐垢堵死,无法稳定运行,产水水质较差等。炼厂于2008年7月开始对一级反渗透工艺流程进行二级改造,至2010年10月全部改造完成。2010年11月投入生产运行至2012年12月份,反渗透装置单台生产能力、系统综合除盐率、二级反渗透装置产水电导率、二氧化硅等各项指标都有了较大提高,同时也使得后续二级除盐系统混床的运行周期和周期产水量、产水水质大大提高,也使操作强度降低,保证了电站锅炉水汽品质合格。 相似文献
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P. Glueckstern 《Desalination》1979,30(1):223-234
A comparative investigation of the economics of desalting based on current and projected technology has been made. Current operating cost of various plant types operating in Israel are reported. These costs range from less than $.4/m3 for membrane plants desalting brackish water to more than three times as much for thermal plants desalting seawater. For new systems, two plant sizes were evaluated: 4,000 m3/day plants applying current technology and 100,000 m3/day plants applying projected technology. The water costs obtained for the various plant types and applied economic parameters, especially energy prices, range between $.2/m3 and $.6/m3 for brackish water desalting and from $.5/m3 to $2.4/m3 for seawater desalting. 相似文献
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Dilute dispersion/emulsion of ultrafine water droplets containing a variety of salts is usually present in crude oil. It is very useful to remove the water and the dissolved salts, so that corrosion, plugging, and fouling of equipment can be prevented. Electrical desalter is an effective method in crude oil desalting. In order to overcome the shortcomings of electrical desalting system, such as larger equipment volume, complex high tension electricity system, a new process of crude desalting that are based on hydrocyclone technology is designed. Preliminary industrial experiments have been carried out to prove the feasibility of desalting using hydrocyclone. The effects of several dimensionless units, such as Reynolds number, Euler number and pressure drop ratio were studied. An increase in inlet Reynolds number will decrease the pressure drop ratio. With an increase in inlet Reynolds number, Euler number increases gradually. Under the condition that Reynolds number of inlet is ranging from 5000 to 5800, the water concentrations can decrease from 5 vol% 8 vol% to less than 0.40 vol% and the salt concentrations is reduced from less than 8 mg L−1 to 3 mg L−1 after handled. 相似文献
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针对冬季长江原水和黄浦江原水的水质情况,通过混凝剂种类、混凝剂投加量、不同混凝沉淀条件几方面对两种原水及其以不同配比混合后原水的处理进行研究。结果表明,聚硫氯化铝(PACS)和聚合硫酸铝铁(PAFS)在处理低温混合原水时比硫酸铝节省投加量,浊度降到最低值时长江原水所需混凝剂硫酸铝的投加量为40~50 mg/L,低于黄浦江原水所需的60 mg/L,两种降速絮凝状态对混合原水处理效果相近,为保证常规处理后水质达标,冬季黄浦江和长江原水混合比例最好不超过3∶7。 相似文献
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高铁酸钾的制备及其对低温低浊水的处理 总被引:1,自引:1,他引:0
为了研制高效和安全的混凝剂,采用次氯酸盐氧化法制备高铁酸钾,对高铁酸钾处理低温低浊水源水进行研究。试验表明:采用次氯酸盐法制取的高铁酸钾稳定性高,产率和纯度较高;高铁酸钾具有混凝作用,对源水浊度去除效果好于聚合氯化铝,在源水浊度为20NTU,pH值为7.7,水温为6℃的条件下,投加高铁酸钾30mg/L,滤后水浊度为0.2NTU,高铁酸钾具有消毒作用,经其处理的源水细菌总数降为10个/mL,大肠菌群数降为0个/L,其浊度和细菌学指标均能满足国家生活饮用水一级标准。 相似文献