Development of Analysis System of Rheology Characteristics for Slurry containing Fine Powders

细粉浆料流变特性分析系统的研制

基本信息

批准号：
10650921
负责人：
SHIBATA Junji
金额：
$ 1.6万
依托单位：
Kansai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650921/
关键词：
Fine particle suspension Flow characteristic Rheology Viscosity Falling needle viscometer

项目摘要

We did a research to develop the new theory and the measurement equipment to analyze the viscosity and a flow characteristic of the Newtonian fluid and the non- Newtonian fluid that contains liquid of minute particle's being suspended. We established measurement theory in the previous year and we measured a characteristic of the flow of some non-Newtonian fluids with the correct measurement.In this year, we planed to establish the principle and way to automate measurements, and we had another purpose which makes it possible to design and manufacture the small size rheometer. The small size rheometer with 10-mm column diameter and 20-cm column height was designed and manufactured. The sample capacity of the new rheometer was 1/8 compared with the size of rheometer created in the previous year. The automatic measurement system was developed, which measures the relation between shear velocity and Shear stress by taking the information of terminal velocity of the needle obtained by the two magnetic sensors into a computer. Moreover, we made it possible to distinguish between the different flow characteristic, I.e. Newtonian fluid, pseudo-plastic fluid, dilatant fluid, Bingham fluid and non-Bingham fluid and to fix the kind of fluid automatically and to make the flow characteristic chart. The viscosity and flow characteristic of CWS (Coal and Water Slurry) was measured using the small size rheometer. The rheometer created here was possible to measure correctly the flow characteristic of CWS. The rheometer can be applied to the quality control of the chemical plant. Moreover, it was shown that the rheometer could be used as the in-line-type viscometer incorporated into the manufacturing equipment pipeline of the chemical plant to measure continuously the viscosity.

我们进行了研究，开发了新的理论和测量设备来分析牛顿流体和含有悬浮微小颗粒的液体的非牛顿流体的粘度和流动特性。前一年我们建立了测量理论，用正确的测量方法测量了一些非牛顿流体的流动特性。今年，我们计划建立自动化测量的原理和方法，我们还有另一个目的，可以设计和制造小型流变仪。设计并制作了柱径10mm、柱高20cm的小型流变仪。新流变仪的样品容量是去年创建的流变仪尺寸的1/8。开发了自动测量系统，通过将两个磁传感器获得的针的终端速度信息输入计算机来测量剪切速度和剪切应力之间的关系。此外，我们可以区分不同的流量特性，即牛顿流体、假塑性流体、膨胀流体、宾汉流体和非宾汉流体并自动确定流体种类并制作流动特性图。使用小型流变仪测量 CWS（煤水浆）的粘度和流动特性。这里创建的流变仪可以正确测量水煤浆的流动特性。该流变仪可应用于化工厂的质量控制。此外，结果表明，该流变仪可以用作在线式粘度计，并入化工厂的生产设备管道中，以连续测量粘度。