Containerweight participates in the analysis of the relationship between impurities and corn bulk density
The quality relationship of corn is affected by the weight of the soil, and the impurities, moisture, porosity and shape of the corn are the factors that affect the weight. Measure the corn bulk density according to the method stipulated by the national standard and the American standard, and found that there is a certain correlation between the impurity content of corn and the bulk density. To this end, impurities were added to corn and assays were performed using different assay standards. The weight of a container can't be lacking.
Samples were pre-treated according to the national standard method and the bulk density was determined according to the national standard method. Three samples of samples meeting the requirements of the national standard were screened out with a sieve of grains, each weighing 1,000 g. According to the relevant standard methods, suitable corn impurities are prepared and added in proportions of 2%, 4%, 6%, 8%, 9%, 10%, 15%, 20%, and 30%, respectively, and mixed with corn. Determine the bulk density according to the national standard method, take the average of the three samples, and plot the relationship between the BCFM content and the bulk density according to the average value. When the BCFM content in corn samples is less than 9%, the corn bulk density is increased due to impurities filling the corn void, and the BCFM content is positively correlated with the bulk density in this range; when the BCFM content in corn is greater than 9%, the BCFM content and bulk density are. Negative correlation.
Samples were pretreated according to U.S. standard methods and the bulk density was determined according to the American standard method. One sample of the same lot of corn was sampled, and a Cartesian sieve was used to screen out the test sample that meets the American Standard requirements, and weighed 1000 g. According to the United States standard method to prepare the right amount of corn impurities, respectively, according to 2%, 4%, 6%, 8%, 9%, 10%, 15%, 20%, 30% of the ratio, mixed with corn evenly. According to the American standard method, the bulk density was measured 3 times, averaged, and the relationship between the BCFM content and the bulk density was plotted according to the average value.
Through the determination of the weight of the container, it was found that when the bulk density of a single corn sample mixed with impurities of different proportions was measured according to the national standard, when the BCFM content was below 9%, the bulk density was positively correlated with the BCFM content, and when it was higher than 9%, it was negatively correlated. When the bulk density of corn samples mixed with impurities of different proportions was measured according to US standards, when the BCFM content was below the critical value of 4%, the bulk density was negatively correlated with the BCFM content, and when it was between 4% and 8%, it was positively correlated and was higher than 8%. Negative correlation.
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