of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

The Journal is included in the list of the leading peer-reviewed scientific journals and publications, which should be published by the main results of theses for the degree of doctor and Ph.D.
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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 04 (158) 2017

Технические науки

Николаев В. Н. кандидат технических наук, доцент Челябинская государственная агроинженерная академия

Литаш А. В. аспирант Челябинская государственная агроинженерная академия

Ахметвалиев М. С. инженер Южно-Уральский государственный аграрный университет



 This article touches upon the problem of utilization of beer grains forthe purpose of obtaining highly concentrated feed for farm animals, which is anactual problem for today. Based on the analysis of designs of centrifuges,developed a vibration-centrifugal unit for the separation of brewer's grains ona liquid and thick fraction. Improving the efficiency of the process andlifetime of the device is achieved through the use of differentiation(distribution) of the fluid stream in the separation process of brewer's grainson liquid and dense fraction and on that basis still thickened layer offiltered material on the surface of the blades of the rotor rotating with axialvibration, as well as reverse movement of the rotor will improve the filtrationefficiency. Conducted preliminary research to identify the zero (baseline)values of kinematic parameters: frequency of rotation of the rotor ,the amplitude of oscillation of the rotor ,the oscillation frequency of the rotor  affecting the final sludge moisture content.The assessment of the impact of each factor on the sludge dewatering incentrifugal rotor vibration and centrifugal installation planned four factorexperiment at 3 levels of variation. The resulting nonlinear equation ofmultiple regression of the second order, which is a mathematical model based onthe sediment's moisture spent grains from the main parameters ofvibration-centrifugal setting specifying management settings: rotationfrequency of the rotor  = 500 rpm; amplitude of vibration of the rotor  = 4 mm; the oscillation frequency of the rotor  = 600 rpm; the area of the discharging flow  = 0,00072 m2, in which the sludgemoisture content of brewer's grains is 56 – 58%.


brewer's grains, vibratory centrifuge, blade rotor, filtration, collecting moisture, vibration.


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