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An analytic model of transformation of load streams in conveyer-hopper transport systems of coal mines
Authors:E L Kreimer
Abstract:
1.  In a conveyer-hopper system of underground coal mine transport a load stream can be represented by a vector Γ6 comprised of six linearly independent parameters: 
$$\kappa _\Pi  $$
, qΠ, σΠ, qmax, σK and tΠ.
2.  An analytic model has been developed describing the transformation of load streams, which allows defining the parameters of the vector Γ6 in an arbitrary cross-section of a conveyer-hopper system. It helps improve the accuracy of process evaluations for under-ground transport system.
3.  At an arbitrary cross-section of the conveyer-hopper system, load streams can be described by a Markov step process. This provides a uniform framework for study of load stream transformations.
4.  The length of periods of load stream arrival and stream absence conform to an exponential distribution. The intensity of transformed load streams follows a normal distribution in a portion of the arrival period.
5.  A good convergence has been established between the results of calculations of the maximum composite load stream and normative data obtained from a computer simulation study.
Donetsk Coal Institute, Donetsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 71–77, November–December, 1989.
Keywords:
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