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首页> 外文期刊>ISIJ international >Optimization of Capillary Forces of Clutching Particles in Iron Ore Materials Granulation
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Optimization of Capillary Forces of Clutching Particles in Iron Ore Materials Granulation

机译：铁矿石材料造粒中牵引颗粒的毛细管力的优化

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摘要

Optimization of the operating modes of the pelletizing drum requires the study of the physical processes occurring inside the granules. The purpose of this work is to develop a recommendation for improving the quality of the pelletizing of the charge based on the study of the forces of capillary interaction of particles in granules of granular agglomerate. A deterministic model of capillary adhesion of two particles of arbitrary size and properties based on the calculation of the geometric parameters of the liquid meniscus has been developed. Taking into account the size of the system and to simplify the calculation of the interaction of particles of the sinter batch, the meniscus is represented by a body of revolution with a spherical concave surface. The interaction of 3 mm and 0.1 mm fractions with an average wetting angle θ = 25° for equilibrium states according to the degree of water filling W_(0.1/3) = W_(0.1/0.1) and adhesion forces F_(0.1/3) = F_(0.1/0.1) was researched. A value of the degree of filling the meniscus W_(opt) is lower than the optimal values of W for particles with a particle size of R_2/R_1 = 0.1/0.1 and R_2/R_1 = 0.1/3, therefore, one should assert not about the optimal degree of filling the meniscus, but about the optimal range of degree filling the meniscus from W_(opt) = 0.086 to W_(0.1/3) = 0.21.
机译：造粒鼓的操作模式的优化需要研究在颗粒内部发生的物理过程。这项工作的目的是根据研究颗粒聚集颗粒颗粒中颗粒的毛细血管相互作用的研究，制定提高电荷造粒质量的建议。已经开发了基于液体半月板的几何参数的两个任意尺寸和性质粒子的毛细管粘附的确定性模型。考虑到系统的大小并简化烧结批次颗粒的相互作用的计算，弯月面由具有球形凹面的旋转体表示。根据水填充度（0.1 / 3）= w_（0.1 / 0.1）和粘附力F_（0.1 / 3）的相互作用，平均润湿角θ= 25°的平均润湿角θ= 25°的相互作用。（0.1 / 0.1）和粘附力F_（0.1 / 3） =研究了F_（0.1 / 0.1）。弯月面W_（opt）的填充度的值低于R_2 / R_1 = 0.1 / 0.1 = 0.1 / 0.1 = 0.1 / 0.1和R_2 / R_1 = 0.1 / 3的颗粒的最佳值。因此，应该没有关于填充弯月面的最佳程度，但关于从W_（OPT）= 0.086到W_（0.1 / 3）= 0.21的最佳程度。

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  • 来源
    《ISIJ international》 |2021年第7期|2066-2073|共8页
  • 作者

    Krivenko SERHII; Shabelnyk TETYANA;

  • 作者单位

    Department of Mathematical Methods and System Analysis Faculty of Law and Economics Mariupol State University 129a Budivelnykiv Ave. Mariupol 87500 Ukraine;

    Department of Mathematical Methods and System Analysis Faculty of Law and Economics Mariupol State University 129a Budivelnykiv Ave. Mariupol 87500 Ukraine;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    pelletizer; moisture; sintering; capillary bond strength; wettability;

    机译：造粒机;水分;烧结;毛细粘合强度;润湿性;

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