Automated control of hydrocyclone classification

Lvov, V. V.; Aleksandrova, T. N.

doi:10.17580/gzh.2016.05.14

Cited by 7 publications

(7 citation statements)

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“…Determination of the content of phenolic compounds and antioxidant activity was carried out in water -ethanol extracts (70% ethanol solution) according to standard methods. To determine the total content of flavonoids in plant materials, a spectrophotometric method (at 408 -616 nm) was used, based on the reaction of complexation of flavonoids with aluminum chloride in an acidic medium (in terms of rutin) [31]. The determination of the total content of anthocyanins was carried out using a direct spectrophotometric method in the visible region (450 -550 nm), which consists in direct measurement of optical density (in terms of cyanidin 3-glucoside) [34].…”

Section: Methodsmentioning

confidence: 99%

“…In the Caucasus, the classic locality of this species is: Isti -su in Daralagez (Nakhichevan, Azerbaijan), where it grows in rock crevices [27][28][29]. In Dagestan, it occurs in Magaramkent (environs of the Primorsky village) [30] and Derbent (Zidyan-Kemakh village) regions [25]. In recent years, it has also been identified on Mount Dzhalgan [23].…”

Section: Introductionmentioning

confidence: 99%

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Study of phenolic compounds and antioxidant activity of Nectaroscordum tripedale Trautv in the natural conditions of Dagestan

2022

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The paper presents the results of studies devoted to the study of the rare for Dagestan species Nectaroscordum tripedale Trautv., Included in the Red Data Books of Russia and Dagestan, as endangered (rarity category 1). The aim of this work was to assess the content of phenolic compounds and the antioxidant activity of the aerial part of N. tripedale. Plant raw materials were collected in the vegetation and flowering phase, and the content of phenolic compounds was studied, both in fresh raw materials and in frozen ones. Determination of the content of phenolic compounds and antioxidant activity was carried out in water - ethanol extracts (70% ethanol solution) according to standard methods. The content of phenolic compounds is higher in fresh raw materials than in dried ones. The analysis showed that the leaves contain more flavonoids and anthocyanins than the rest, and the least of them is in the flower arrows. Evaluation of the total content of antioxidants in water - ethanol extracts from the aboveground part of the Dagestan N. tripedale samples. The data of phytochemical studies are of great importance and contribute to supplementing the available information on the dynamics of the accumulation of primary and secondary metabolites in herbaceous plants on the territory of Dagestan.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of phenolic compounds and antioxidant activity of Nectaroscordum tripedale Trautv in the natural conditions of Dagestan

2022

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“…The influence of the diameter of grinding media on the parameters of the rate of destruction in ball mills is presented in [31]. Rational distribution of grinding energy between stages is a very important component of technological regulation of grinding sections and reducing specific energy costs [32]. Obviously, the newly formed surface is an indicator of grinding, taking into account all classes.…”

Section: Using Ds S Dtmentioning

confidence: 99%

“…In addition, an important condition for improving the separation performance of the grinding product in hydrocyclones, and therefore the grade of the final product ready for concentration, is the method of controlling the hydrocyclones. Given the unevenness and heterogeneity of the product fed to the classifiers, methods for automatic control of hydrocyclones have been developed and are successfully applied in practice [32].…”

Section: Figure 3 Cumulative Grindability Indices Of the First And Second Stages Mills At The Tcp In A Closed Loop Circuit With A Spiral mentioning

confidence: 99%

Mineral raw material disintegration mechanisms in ball mills and distribution of grinding energy between sequential stages

Malyarov¹,

Dolgov²,

Kovalev³

2020

Min. miner. depos.

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To study the mechanism of mineral raw material particles destruction, the rational distribution of grinding energy between successive grinding stages in ball mills, and the development of engineering methods for redistribution of technological flows in grinding schemes to reduce specific energy consumption. Methods. Experimental studies of the breakage mechanism were carried out using a physical model of a ball mill operated in the batch mode taking into account the similarity theory. For comparative studies of dry and wet grinding, quartz sand and crushed marble products with a particle size of +0.25…-0.5 mm were used. The selection of the grinding energy distribution rational parameters between successive stages of ball grinding was carried out by general testing at the concentrator plants of Armenia, Russia, and Uzbekistan. Findings. The materials resulting from studying processes of grinding mineral raw materials in ball mills are presented. It was established that the mineral raw particles destruction in ball mills occurs within the layer as a result of the layers discrete sliding of the ball charge along the ascending trajectories while effectively filling the free space between the balls with the material to be crushed. A technique was developed for evaluating the efficiency of grinding energy distribution between successive stages on the basis of the established laws of mineral raw material particles destruction. Methods for redistributing the grinding energy between the first and second grinding stages are proposed. The methods for the rational distribution of grinding energy between mills of the first and second stages, using drum screens, was developed and implemented in the practice of concentrator plants. Originality. The authors established the dependences of the grinding material content of the size -100 μm on the free space filling coefficient with the material for sand and marble during dry and wet grinding. The mechanism of the mineral raw particle destruction in the layer during discrete sliding between the charge layers on the ascending trajectories is disclosed. Practical implications. The proposed methodology for evaluating the efficiency of grinding energy distribution made it possible to develop and implement into the concentrator plants practice the techniques for redistributing grinding energy between successive stages with significant economic effect.

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“…Having considered the prerequisites, conditions and factors for the formation and development of integrated agricultural structures, it can be argued that, first, the agro-industrial integration plays a significant role in socio-economic development. Secondly, new types, forms and methods of economic activity are developing and forming in changing conditions (Lvov and Aleksandrova, 2016). Finally, for some business entities, the integration process is the only way to retain market positions in the overall market globalization.…”

Section: Informationmentioning

confidence: 99%

The Organizational-Economic Mechanism for the Development of Integration Processes in the Production and Processing of Products

Voronkova¹,

Sorokina²,

Baburin³

2019

IJEBA

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Purpose: The article considers the development of integration processes in the production and processing of agricultural products. Design/Methodology/Approach: The competitive development of regional economic complexes requires identifying and implementing new, more efficient forms of production and business activities. Findings: The development of integration processes in agriculture and processing industry is an important condition affecting the efficiency of economic entities, as well as their organizational, economic and financial sustainability. Practical implications: The authors suggest an organizational-economic project of the regional integration structure. Originality/Value: One of the most popular methods for solving the problem of further development of diversified agricultural enterprises is the integration of manufacturers that allows combining the entire reproduction cycle into a single processstarting with the production of raw materials and ending with the release of high-quality products intended for final consumption.

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Automated control of hydrocyclone classification

Cited by 7 publications

References 0 publications

Study of phenolic compounds and antioxidant activity of Nectaroscordum tripedale Trautv in the natural conditions of Dagestan

Study of phenolic compounds and antioxidant activity of Nectaroscordum tripedale Trautv in the natural conditions of Dagestan

Mineral raw material disintegration mechanisms in ball mills and distribution of grinding energy between sequential stages

The Organizational-Economic Mechanism for the Development of Integration Processes in the Production and Processing of Products

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