Purpose: To determine the most common structures of hoppers and identify their main features. Methods: Theoretical analysis of the parameters determining the dimension of the main elements of hoppers and statistical analysis of the dimension. Results: The results of statistical analysis of frame features and geometric parameters of hoppers for bulk materials are presented. Practical significance: Results can be used to substantiate the dimension and frame of an experimental hopper which on, the check is supposed of theoretical research of vault destruction.
hopper, bulk materials, arch formation, loading and unloading devices, statistical analysis
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