AND DENSE MATERIAL

Yang Xiaopu  Zhao Xueyi  Jin Yun  Cui Yujiang  Wu Miao

(School of Mechanical, Electronic and Information Engineering, China University of Mining and Technology, Beijing 100083)

Abstract: The rheological measurement of high viscous material(such as original coal slurry, city sludge, paper pulp and such industrial byproducts or solid waste) has important significance in the project of pipeline transportation of these matter. Under normal pressure and without adding additives, viscous and dense material with high concentration is a kind of separate agglomerate material without characteristic of fluid. If using common rotational rheometer, it is impossible to test the rheological characteristic. However, under high pressure, viscous and dense material with high concentration will become continuous slurry with characteristic of fluid. So a new sort of high-pressure rotational rheometer of high viscous material (maxi-mum operating condition is 20MPa) is researched and manufactured. The structure and the process of calibration are reported. After the test of calibration and use, the device can well fit for measuring the viscosity of high viscous material. It is superior in the degree of the automatization and facile in the automatic collection of data.

Key words:  Rotational viscometer  Viscosity  Calibration  Rheological property

CLC No: TH6

科技部科技型创新基金(20021104021799)和教育部博士点专项基金(20020290011)资助项目. Received 20040615, received in revised form 20041128