Studying Grain Flow Immersion into Liquids of Various Densities Based on the Methods of Experiment Design

IF 0.1 Q4 ENGINEERING, MULTIDISCIPLINARY Engineering Technologies and Systems Pub Date : 2021-09-30 DOI:10.15507/2658-4123.031.202103.414-429
A. Saitov, V. Sysuev, V. Saitov
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Abstract

Introduction. In addition to grain, a grain heap of rye may contain poisonous ergot sclerotia. Modern grain cleaning machines do not isolate ergot sclerotia in one technological process because of the similarity of physical properties in linear dimensions. Isolation of ergot sclerotia from rye grain in one technological process is possible through the use of aqueous solutions of inorganic salts. The purpose of the study is to determine the optimum elevation of the loading hopper relative to the liquid surface. The data obtained contribute to increasing the quality of the technological process of the machine being developed. Materials and Methods. The paper considers the delivery of rye grain flow from the loading hopper outlet into the liquid by varying the specific grain load, liquid density and the delivery height. To set up the experiments, the experiment design methods have been used. The experimental data have been processed using the statistical package Statgraphics Plus 5.1. Results. The estimation of the effective elevation of the loading hopper outlet relative to the liquid surface when delivering grain flow has been carried out. There have been obtained regression models for the fraction of grains, which did not submerge and rose up to the liquid surface with air bubbles. Discussion and Conclusion. It has been found that the density of the aqueous salt solution has a significant effect on the percentage of grains, which did not submerge and rose up to the liquid surface with air bubbles. The smallest values of at different density of the liquid and specific grain load are achieved at a grain delivery height 56.0 ∙ 10–3 m.
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基于实验设计方法的颗粒流浸入不同密度液体的研究
介绍。除了谷物,一堆黑麦还可能含有有毒的麦角菌菌核。现代谷物清洗机不分离麦角菌核在一个工艺过程中,因为在线性尺寸的物理性质的相似性。利用无机盐水溶液从黑麦籽粒中分离麦角菌核是可行的。研究的目的是确定装载料斗相对于液体表面的最佳高度。所获得的数据有助于提高正在开发的机器的工艺过程的质量。材料与方法。本文考虑了通过改变粮食比负荷、液体密度和输送高度,使黑麦谷物流从装料斗出口进入液体。为了设置实验,采用了实验设计方法。实验数据使用统计软件包Statgraphics Plus 5.1.Results进行处理。对出料时料斗出口相对于液面有效高程进行了估算。已经建立了颗粒未下沉,浮到带气泡的液体表面的回归模型。讨论与结论。研究发现,盐水溶液的密度对颗粒的百分比有显著影响,这些颗粒没有下沉,而是带着气泡上升到液体表面。不同液体密度和比粮负荷的最小值出现在送粮高度为56.0∙10-3 m时。
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来源期刊
Engineering Technologies and Systems
Engineering Technologies and Systems ENGINEERING, MULTIDISCIPLINARY-
自引率
33.30%
发文量
29
审稿时长
12 weeks
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