Intensification of Bulk Material Mixing in New Designs of Drum, Vibratory and Centrifugal Mixers

Ivanets, V. N.; Бородулин, Д. М.; Шушпанников, А. Б.; Sukhorukov, D. V.

doi:10.12737/11239

Cited by 15 publications

(9 citation statements)

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“…The peculiarity of this design is that inside the mixer there is a shaft with Г-shaped blades for increasing the smoothing ability as a result of internal recycling of the mixture. The drum mixer operates as follows [3,8,9]. Bulk materials are fed into the mixer through the feed nozzle 6.…”

Section: Objects and Methods Of Researchmentioning

confidence: 99%

“…These devices are characterized by high smoothing ability, low specific metal and energy costs, high intensity of the mixing process, due to the organization of directed movement of thin-layer material flows in combination with the advance and recycling circuits. These devices are suitable as the main component for a continuous mixing plant, either individually or in any combination thereof [5,9]. If it is necessary to prepare mixtures, for example, with a ratio of ingredients of 1: 1000, it is necessary to consistently install continuously operating drum mixers (ratio of components 1:10) and vibration (at a ratio of 1: 100) types.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Mixing Process in Drum Mixer with Different Topology of Material Flows

Бородулин¹,

Bakin²,

Sukhorukov³

et al. 2018

International Scientific and Practical Conference "AgroSMART - Smart Solutions for Agriculture" (AgroSMART 2018)

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The article contains a mathematical description of the process of mixing bulk materials in a drum aggregate using elements of mathematical statistics, theory of probability and averaging models. A random stationary process is a flow that is formed by means of dispensers in this case. The correlation function is used as its parameter. It is a measure of the stability of the process. The relationship between the variances of the input and output signals is established by means of a correlation analysis. It allows predicting the degree of homogeneity of the material flow (smoothing ability of the mixer) at the output for the given parameters of the input signal: the coefficients of recycling, the time of its presence in the mixer and the dispersion of the input signal. The correlation analysis of the flow of material allowed the development of a new design of a continuous drum mixer. As a result, we found that the organization of external and internal recycling circuits greatly affects the reduction of fluctuations in the input signal. This reduces the variance of components and increases homogeneity of the mixture.

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Section: Objects and Methods Of Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation of Mixing Process in Drum Mixer with Different Topology of Material Flows

Бородулин¹,

Bakin²,

Sukhorukov³

et al. 2018

International Scientific and Practical Conference "AgroSMART - Smart Solutions for Agriculture" (AgroSMART 2018)

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“…В тех случаях когда необходимо получать высококачественные сыпучие композиции при соотношении компонентов до 1:50, целесообразно использовать винтовые вертикальные вибрационные СНД [2][3][4][5][6]. Они обладают хорошей способностью сглаживать флуктуации расходов входящих материальных потоков.…”

Section: Introductionunclassified

“…Таким образом осуществляется "последовательное разбавление" смеси на основном рабочем органе. Расширение лотка необходимо для того, чтобы избежать резкого увеличения высоты кипящего слоя, что может привести к уменьшению скорости транспортирования сыпучего материала и интенсивности его виброкипения [6]. В итоге готовый продукт выводится из аппарата через патрубок.…”

Section: Introductionunclassified

“…Материальный баланс для материала, движущегося по дополнительному рабочему органу (рисунок 1, а), был ранее рассмотрен в ряде работ исследователей [6], в результате которых был сделан вывод, что в прямоточном смесителе сглаживающая способность, вне зависимости от количества витков m, стремится к 1, т. е. S→1.…”

Section: Introductionunclassified

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Determination of the smoothing ability of the vibration mixer on the basis of the correlation analysis

Бородулин

Шушпанников

Zorina

et al. 2019

Vestn. Voronež. gos. univ. inž. tehnol.

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Now the increasing popularity is received by food semi-finished products from the bulk materials. With increase in volume of their production it is expedient to mix powdery materials in the mixers of continuous action. For the set working hours of the mixers of continuous action the movement of material in the device is considered to be casual stationary processes between which there is relationship of cause and effect. Key indicators for her assessment is the correlation coefficient, population mean and dispersion. Communication between entering and going out of the device signals is established by means of the equations of material balance, describing expenses of streams of bulk stochastic stationary functions X (t). Further, finding probabilistic characteristics of the entering and leaving signals, it is possible to judge "quality" of operation of the mixer or to select the required topology of streams in the hardware environment by comparison of the relations of their dispersions or mean square deviations. In this work the scheme of the movement of material streams in the mixer developed by us realizing a method of "consecutive dilution" is considered. By means of the system of the equations of the material balance displaying process of the movement of material in the mixers of continuous action of vibration type influence of recirculation on the smoothing properties of the device is considered. Values of size of the smoothing ability of S from recirculation coefficient ? and quantities of rounds of n are given. It is revealed that increase in the smoothing ability leads to increase of quantity of rounds, and respectively and dimensions of the mixers of continuous action of vibration type, therefore, it is expedient to use the mixer with quantity of rounds equal 6 and coefficient of recirculation equal 0.7 as at the same time the smoothing ability equal is enough 1753 for receiving qualitative ready mix at a ratio of components 1:50. By means of the correlation analysis it is possible to predict uniformity of a material stream at the device exit at the known values of the time spent in him of material, coefficients of recirculation and dispersion of an entrance signal.

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Modeling of Mixing Bulk Materials

Dudarev

Kirchuk

Hunko

et al. 2019

Lecture Notes in Mechanical Engineering

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Intensification of Bulk Material Mixing in New Designs of Drum, Vibratory and Centrifugal Mixers

Cited by 15 publications

References 0 publications

Simulation of Mixing Process in Drum Mixer with Different Topology of Material Flows

Simulation of Mixing Process in Drum Mixer with Different Topology of Material Flows

Determination of the smoothing ability of the vibration mixer on the basis of the correlation analysis

Modeling of Mixing Bulk Materials

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