Abstract In this study, a simple and yet novel methodology based on the use of modified inclined plane (M-IP) has been established and validated to determine the high-temperature slag viscosity. Seven synthetic standard ash samples have been tested on the inclined corundum plane, under the conditions of reducing environment of 1% CO in nitrogen, 1100 °C–1400 °C, 25°–90° and different duration time of 10–40 min. The slag mass was varied from 100 mg to 400 mg . A multiple linear regression fitting was conducted to establish an empirical equation to predict slag viscosity ( η ) based on the slag travel length per unit mass ( L′ ) and the inclination angle of the plane ( cosβ ). As has been fully validated, the new method is simple and requires a maximum of 200 mg ash for the slagging test. By measuring only two temperature points, an Arrhenius equation can be established to predict the travel length at any of the intermediate temperatures. Both the inclination angle and the reciprocal of slag viscosity affect the slag travel length in an intertwined manner, by following a linear relationship between the algorithm of slag travel length per unit mass, cosβ and the logarithm of slag viscosity, as per the equation of ln μ = 3.282281 cos β - 1.882827 lnL ′ + 7.397108 . The large correlation coefficient value and the normal quantile plot supported the high reliability of this equation. However, this empirical equation is limited to an upper temperature of 1400 °C and a maximum viscosity of 17.9 Pa·s . Any larger viscosity would only be measured qualitatively, whilst it is sufficient for a comparison with the critical viscosity 25 Pa·s from the perspective of a quick screening of solid fuel for entrained-flow gasifier or cyclone furnace.

中文翻译：

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建立一种基于使用修正斜面 (M-IP) 进行高温渣粘度测量的新颖而简单的方法

摘要 在本研究中，建立并验证了一种基于使用修正斜面 (M-IP) 的简单而新颖的方法来确定高温渣粘度。七个合成标准灰样在斜刚玉平面上进行了测试，还原环境为氮气中 1% CO、1100°C-1400°C、25°-90°和不同的持续时间 10-40 min。炉渣质量从 100 毫克到 400 毫克不等。进行多元线性回归拟合以建立经验方程，以基于每单位质量的炉渣移动长度（L'）和平面倾角（cosβ）来预测炉渣粘度（η）。经充分验证，新方法很简单，结渣测试最多需要 200 毫克灰分。通过仅测量两个温度点，可以建立 Arrhenius 方程来预测任何中间温度下的行程长度。倾角和炉渣粘度的倒数都以相互交织的方式影响炉渣移动长度，遵循单位质量炉渣移动长度算法 cosβ 和炉渣粘度对数之间的线性关系，如 ln 等式μ = 3.282281 cos β - 1.882827 lnL ' + 7.397108。大的相关系数值和正态分位数图支持了该方程的高可靠性。然而，该经验方程仅限于 1400 °C 的上限温度和 17.9 Pa·s 的最大粘度。任何较大的粘度只能定性测量，