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本文介绍了通过采用找平装置来控制ISA法铜电解槽槽面水平误差的方法,通过现场测量及工艺操作证明是行之有效的。 相似文献
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结合电镀工业中常用的霍尔槽实验,根据铜电解精炼生产特性,阐述了霍尔槽实验在铜电解中的应用,以及如何通过霍尔槽实验,辅助判断铜电解生产系统稳定性。 相似文献
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露天高温敞口(非封闭)槽罐中的腐蚀性液体,温度高、可沉淀、液体介电常数变化频繁,液面上部充满污浊高温蒸汽,使用雷达(超声波)液位计、电容液位计测量其液位时,经常会出现测量装置死机、显示不准、冒槽等现象.吹气式液位测量装置具有使用寿命长、经济、维护工作量小,测量介质变化时测量值只比实际液位高的特点,只要安装、调试合理,可完全杜绝由于死机而造成的冒槽事故. 相似文献
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Said Nourbakhsh Fei-Lin Liang Harold Margolin 《Metallurgical and Materials Transactions A》1989,20(9):1861-1866
The effect of capillary forces on the pressure differential required for infiltration of square and hexagonal arrays of parallel
fibers has been evaluated by deriving equations which include the contact angle, fiber diameter, and volume fraction. Three
models have been considered as fol-lows: (a) unidirectional liquid flow normal to the fibers, (b) bidirectional flow normal
to the fibers, and (c) three-dimensional flow. The three-dimensional model predicts the lowest pressure for infiltration.
A comparison is made between the required pressure differential for infiltration based on the work of immersion[1] and capillary forces. The required pressure differentials based on capillary forces for contact angles greater than 90 deg
are always greater than pressure dif-ferentials calculated from the work of immersion. 相似文献
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提出了一种液位流量互容错控制方法,并利用该方法解决了发生传感器故障时稀土萃取生产线的停产维修问题,减少了生产损耗.该方法利用多传感器信息和简便的诊断技术进行故障诊断,通过容错控制策略,用正常系统替代故障传感器来帮助故障系统继续工作.该容错控制方法还利用神经网络来减少容错系统性能损失,保证容错系统具有一定控制精度.这种容错控制策略具有不改变原控制系统结构、不增加设备和简便易行的特点.该容错控制方法也可用于其它行业中的类似场合. 相似文献
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蒸发器液位检测方法的分析与探讨 总被引:1,自引:0,他引:1
在蒸发操作过程中,蒸发室的液位稳定十分重要,现在液位的检测一般采用目镜观察法,随着蒸发技术的发展,这种方法已不能满足需要。本通过对几种液位检测法的分析,重点介绍一种实用的液位检测法。 相似文献
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高炉长寿、大型、高效化是高炉炼铁的主流趋势,炉缸是影响高炉长寿的关键性环节。为实现对炉缸内部环境长期稳定的监测,冶金研究人员尝试了诸多方法,例如热电偶测温、冷却壁水温监测法、超声波无损检测技术等,但这些方法均存在弊端。根据高炉炉缸的结构特点,实验室设计了一个炉缸试验装置及其配套的EMF(电动势)测量系统。通过实验室试验得出EMF信号与液面高度、温度、传感材质等参数之间的关系,然后通过现场鱼雷罐工业试验验证了EMF信号与液面的关系。6种信号线中,钼丝和镀银铜线适合做信号线。 相似文献
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A summary concerning the measurement of liquid density relying on the Archimedes principle has been presented, based on which
a new effective method with a specially designed bob for determining liquid density has been suggested. The application of
this method to ethyl alcohol solution and liquid glycerol, as well as a theoretical error analysis, shows that this new method
is significant, because not only can it simplify the procedure of measurement but it can also offer more precise results.
Besides, this method can further provide surface tension or contact angle simultaneously. It is expected that this new method
will find its application in hightemperature melts.
leave from Thermodynamics and Phase Diagram Lab, University of Science and Technology Beijing 相似文献