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Topic

Technologies and technical equipment for agriculture and food industry

Volume

Volume 60 / No.1 / 2020

Pages : 193-200

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ASSESSMENT INDICES FOR THE EFFICIENCY OF THE SEPARATION PROCESS ON A SIEVE WITH CONICAL SEPARATION SURFACE

INDICI DE APRECIERE A EFICIENŢEI PROCESULUI DE SEPARARE PE O SITĂ CU SUPRAFAȚA DE SEPARARE CONICĂ

DOI : https://doi.org/10.35633/inmateh-60-22

Authors

Dorel Stoica

Polytechnic University of bucharest

(*) Gheorghe Voicu

Polytechnic University of Bucharest

Lucretia Popa

INMA Bucharest

Paula Tudor

Polytechnic University of Bucharest

Gabriel-Alexandru Constantin

Polytechnic University of Bucharest

(*) Corresponding authors:

[email protected] |

Gheorghe Voicu

Abstract

The objective of this paper is to present the efficiency of the separation process on a sieve with a conical separation surface, with a vertical shaft and having vibrational motion. Separation intensity curves of rape seeds through circular sieve apertures were drawn by regression analysis of the quantities of material separated at different distances from the central axis of the sieve, using the Gaussian distribution law. The coefficients of the regression equation and the correlation coefficient of the distribution function with experimental data show a high degree of correlation between them. The movement of the material on the sieve and the separation process, in general, was assessed by the position of the distribution curve maximum, depending on the material flow rate.

Abstract in Romanian, Moldavian, Moldovan

Obiectivul acestei lucrări este acela de a prezenta eficienţa procesului de separare pe o sita cu suprafata de separare conica cu ax vertical având mişcare vibratorie. Curbele intensităţii de separare a seminţelor de rapiţă prin ochiurile circulare ale sitei au fost trasate prin analiza de regresie a cantităţilor de material separat la diferite distanţe de axa centrală a sitei, utilizând legea de distribuţie Gauss. Coeficienţii ecuaţiei de regresie şi coeficientul de corelaţie a funcţiei de distribuţie cu datele experimentale arată un grad ridicat de corelaţie între acestea. Mişcarea materialului pe sită şi procesul de separare, în general, a fost apreciat prin poziţia maximului curbei de distribuţie, în funcţie de debitul dealimentare cu material.

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