scholarly journals A Method to Assess Particle Size Classification Efficiency

1971 ◽  
Vol 8 (6) ◽  
pp. 443-449
Author(s):  
Zennosuke Tanaka ◽  
Koichi Iinoya
Keyword(s):  
Particle Size ◽  
Size Classification ◽  
Classification Efficiency

Using genetic programming to transform from Australian to USDA/FAO soil particle-size classification system

Soil Research ◽  
2012 ◽  
Vol 50 (6) ◽  
pp. 443 ◽  
Author(s):  
José Padarian ◽  
Budiman Minasny ◽  
Alex McBratney
Keyword(s):  
Particle Size ◽  
Genetic Programming ◽  
Classification Systems ◽  
Soil Survey ◽  
Pedotransfer Functions ◽  
Programming Technique ◽  
Size Classification ◽  
The Difference ◽  
Prior Models ◽  
Australian Soil

The difference between the International (adopted by Australia) and the USDA/FAO particle-size classification systems is the limit between silt and sand fractions (20 μm for the International and 50 µm for the USDA/FAO). In order to work with pedotransfer functions generated under the USDA/FAO system with Australian soil survey data, a conversion should be attempted. The aim of this work is to improve prior models using larger datasets and a genetic programming technique, in the form of a symbolic regression. The 2–50 µm fraction was predicted using a USDA dataset which included both particle-size classification systems. The presented model reduced the root mean square error (%) by 14.96 and 23.62% (IGBP-DIS dataset and Australian dataset, respectively), compared with the previous model.

The Development and Test of New Type of Hydraulic Classifier

2013 ◽  
Vol 868 ◽  
pp. 380-385
Author(s):  
Yuan Yang Liu ◽  
Yi Shun Zhang ◽  
Fei Yue Wang ◽  
Chang Liang Shi ◽  
Ling Zhang
Keyword(s):  
Particle Size ◽  
Coal Preparation ◽  
Two Phase ◽  
Product Particle ◽  
Controllable Factors ◽  
New Type ◽  
Coal Slime ◽  
Coal Preparation Plant ◽  
Preparation Plant ◽  
Classification Efficiency

Hydraulic classifier is widely used in the mill plant，But the design of traditional hydraulic classifier is simple，less controllable factors, cause the inaccuracy of Classifying product particle size，low classification efficiency. In order to solve these problems, the paper puts forward a new hydraulic classifier, we can improve the efficiency of classification by improving the appearance structure of hydraulic classifier and taking two pieces of top water. In the lab，the classification test was conducted with the coarse slime (0.9~0.3 mm, 0.3~0.074 mm) from Yanma coal preparation plant under the two phase of water supplying. The results of test show that by using two phase of water supplying, the new hydraulic classifier Can improve the classification effect of coarse coal slime.

Centripetal particle size classification.

1980 ◽  
Vol 14 (4) ◽  
pp. 461-465 ◽  
Author(s):  
Klaus. Willeke ◽  
James D. Blanchard
Keyword(s):  
Particle Size ◽  
Size Classification
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