scholarly journals THE CHOICE OF ECONOMICALLY EXPEDIENT USE OF FERROUS METALS CHIPS IN ARC STEEL-SMELTING FURNACES ON OJSC «BSW – MANAGEMENT COMPANY OF HOLDING «BMC»

2017 ◽  
pp. 21-23
Author(s):  
A. I. Rozhkov ◽  
O. M. Grudnitsky ◽  
A. V. Feklistov ◽  
D. L. Konovalov
Keyword(s):  
Raw Materials ◽  
Economic Effect ◽  
Steel Smelting ◽  
Management Company ◽  
Positive Economic ◽  
Ferrous Metals ◽  
Economic Process ◽  
Effective Use

The problem of effective use of the alternate raw materials of metallurgical branch – shaving of ferrous metals chips is described in the article. The options of application are considered, the developed organizational and economic process promoting obtaining positive economic effect is given. 

scholarly journals EFFECTIVE USE OF ROTARY FURNACE SHELL HEAT

2014 ◽  
Vol 54 (6) ◽  
pp. 414-419
Author(s):  
Julius Lisuch ◽  
Dusan Dorcak ◽  
Jan Spisak
Keyword(s):  
Waste Heat ◽  
Cooling System ◽  
Raw Materials ◽  
Significant Proportion ◽  
Rotary Furnace ◽  
Cost Effective ◽  
Total Energy Expenditure ◽  
Heat Losses ◽  
Controlled Cooling ◽  
Effective Use

<pre><pre>Significant proportion of the total energy expenditure for the heat treatment of raw materials are heat losses through the shell of rotary furnace. Currently, the waste heat is not used in any way and escapes into the environment. Controlled cooling system for rotary furnace shell (<span>CCSRF</span>) is a new solution integrated into the technological process aimed at reducing the heat loss of the furnace shell. Based on simulations and experiments carried out was demonstrated a significant effect of controlled cooling shell to the rotary furnace work. The proposed solution is cost-effective and operationally undemanding.</pre></pre>

scholarly journals Ejaculate quality is influenced by boar behaviour at the time of collection

2016 ◽  
Vol 73 (2) ◽  
pp. 240
Author(s):  
Vasile Miclea ◽  
Ilona Gyorgy ◽  
Ileana Miclea ◽  
Marius Zahan ◽  
Alexandru Nagy ◽  
...  
Keyword(s):  
Volume Concentration ◽  
Economic Effect ◽  
Positive Economic ◽  
Young Boars ◽  
Time Of Collection ◽  
Sexual Reflexes

Ejaculates were collected from the same boars twice a week, in spring during two years. Most animals had very good sexual reflexes and were scored as 5. They gave ejaculates which had good volume, concentration and motility and could be processed into the largest number of insemination doses. This had an obvious positive economic effect. Age influenced ejaculate quality in young boars, with the exception of a few animals in which sexual reflexes were diminished. Nevertheless, ejaculates had the necessary characteristics and could be processed.

scholarly journals Effect of Phytase Addition to Buckwheat Wort on the Selected Fermentable Sugars, Polypeptide Profile and Nitrogen Content from Free Aminoacids

2021 ◽  
Vol 78 (1) ◽  
pp. 33
Author(s):  
Robert DULIŃSKI ◽  
Marek ZDANIEWICZ ◽  
Aneta PATER
Keyword(s):  
Raw Materials ◽  
Fermentable Sugars ◽  
Relative Peak Area ◽  
Glucose Content ◽  
Target Molecules ◽  
Effective Use ◽  
Beer Production ◽  
Free Aminoacids ◽  
Low Activity ◽  
Polypeptide Profile

Relatively high levels of phytates in buckwheat malt and the low activity of endogenous phytases that limit the effective use of substrates for fermentation and yeast metabolism (starch, proteins, minerals) are an argument for using phytases in beer production technology. Two mash-in programs were applied: (1) the Congress program, typical for basic raw materials, (2) a program with temperature optimized for phytase activity. Commercial preparations of 3-phytase (Finase P) and 6-phytase (Ronozyme) were used in the study. Monitored levels of selected fermentable sugars indicates a statistically significant effect of phytase addition on the glucose content in both mash-in programs used. The SEC-HPLC chromatography allowed to select a key polypeptide with an estimated molecular weight of 40 kDa, whose relative peak area decreases as a result of the applied mash-increase treatment with phosphorolytic enzymes, although this relation was not statistically confirmed in the analysis of free amino acids content. The analyses carried out also indicate that apart from the target molecules, namely phytate and inositol, the use of phytases in the process of buckwheat wort preparation slightly changes the profile of fermentable sugars and causes significant changes in the polypeptide profile of the final mash.

scholarly journals The periclase-chromite refractory decomposition by the action of the pulverized coal and gas medium in course of copper-sulfide raw materials processing

2018 ◽  
pp. 31-36
Author(s):  
A. M. Klyushnikov ◽  
E. N. Selivanov ◽  
K. V. Pikulin ◽  
V. V. Belyaev ◽  
A. B. Lebed' ◽  
...  
Keyword(s):  
Surface Layer ◽  
Raw Materials ◽  
Weight Percent ◽  
Pulverized Coal ◽  
Refractory Powder ◽  
Ferrous Metals ◽  
Composition And Structure ◽  
Non Ferrous Metals ◽  
Refractory Surface ◽  
Gas Medium

The investigating results are given for the periclase-chromite refractories' composition and structure which are in contact with the pulverized coal and gas medium in the coppersulfide smelting furnaces. The high-temperature burnt copper concentrate and the sulfur dioxide gas suspensions combined action changes the surface and deep refractories layers chemical composition, with that the impurities content reach the value in weight percent: Fe 54,0, Cu 7,2, Zn 6,4, S 1,8. The refractory's surface layer saturation with the iron and non-ferrous metals oxides decreases the porosity and gives rise to low-melting compositions and eutectics. The refractory decomposition is induced by the shelling of the refractory surface layers with the filled porous taking place in course of the heating-cooling cycling because of the phase's thermal linear expansion coefficients. When the spent refractory disposal, it is feasible to separate mechanically the surface layer for the non-ferrous metals extracting, the rest part can be used for obtaining the refractory powder of various purpose.

scholarly journals Study of lysate activity to modificate collagene raw materials to use in sausage mixture

2018 ◽  
Vol 6 (2) ◽  
pp. 256-263 ◽  
Author(s):  
Andrey Danilov ◽  
Andrey Danilov ◽  
Bayana Bazhenova ◽  
Bayana Bazhenova ◽  
Michail Danilov ◽  
...  
Keyword(s):  
Sodium Tripolyphosphate ◽  
Raw Materials ◽  
Import Substitution ◽  
Optimal Dose ◽  
Meat Industry ◽  
Technological Properties ◽  
Enzyme Solution ◽  
Heat Treated ◽  
Effective Use ◽  
By Products

In the current conditions of import substitution, the effective use of secondary raw materials in the meat industry is a relevant issue. A significant source of animal proteins is by-products, the yield of which is about 10% of livestock weight. Some by-products, including beef rumen, contain collagen-containing tissues which require modification for tenderization and deodorization. In order to modify rumen tissues, the biotechnological method of treatment with an enzyme solution, lysate, obtained from a whole bovine abomasum was preferred to the known method where enzyme solution is prepared from an abomasal mucosa. The purpose of this project was to study the activity of lysate from a whole bovine abomasum for the modification of rumen tissue to use it in cooked sausage formulations. We have suggested the method of obtaining enzyme solution based on infusing the minced abomasum in a reaction mixture – water, chlorohydric acid, and sodium tripolyphosphate – followed by filtering. The dependence of proteolytic and collagenase activities of the solution obtained from phosphate dose introduced have been studied; it have been revealed that 1.5% of tripolyphosphate is the optimal dose for efficient extraction of enzymes from the whole abomasum. Besides, an effect of the enzyme solution on functional and technological properties of a heat-treated rumen has been studied, and the improvement of hydro- and lipophilic characteristics has been revealed. Paste with modified rumen has been developed and found that the maximum possible dose of rumen for use in cooked sausage from horsemeat is 15%. The color on the cut of sausage developed was identical to that of beef sausage. Thus, paste made on the basis of modified rumen contributes to the formation of functional and technological properties, the stabilization of the color characteristics of the final product, as well as the effective use of basic meat raw materials and the expansion of the range of economy class high-protein sausage production.

scholarly journals Influence of unconventional feed supplement on productivity and quality of laying hens

2020 ◽  
Author(s):  
Л.И. НАУМОВА ◽  
А.А. ЛУКАШИНА
Keyword(s):  
Laying Hens ◽  
Raw Materials ◽  
Brown Seaweed ◽  
Positive Influence ◽  
Feed Conversion ◽  
Feed Supplement ◽  
Pine Cone ◽  
Effective Use ◽  
Unconventional Feed

Показана эффективность использования в рационах промышленных кур-несушек натуральных кормовых добавок, изготовленных из сырья растительного происхождения (элеутерококка колючего, морской бурой водоросли, патринии скабеозолистной, крапивы двудомной, муки из шелухи шишек кедрового ореха). Выявлено положительное влияние кормовых добавок на обменные процессы в организме кур, что способствовало повышению их производительных качеств и снижению коэффициента конверсии корма. The results of effective use of the spiny eleuterococcus, brown seaweed, Dahurian patrinia, common nettle, flour from pine cone shell as the feed supplement from raw materials of plant origin in addition to the main ration of industrial laying hens are presented in this publication. The positive influence of the feed supplements on metabolic processes in the hen organisms was discovered and this fact contributed the increase of productive qualities and improvement of feed conversion.

scholarly journals Using Steel-Smelting Slag as a Raw Material Component in the Production of Asphalt Concrete

2020 ◽  
Vol 157 ◽  
pp. 06010
Author(s):  
Dmitry Kuznetsov ◽  
Marina Vysotskaya ◽  
Albert Burgonutdinov
Keyword(s):  
Asphalt Concrete ◽  
Raw Materials ◽  
Raw Material ◽  
Crushed Stone ◽  
Fatigue Properties ◽  
Initial Moment ◽  
Type B ◽  
Steel Smelting ◽  
Smelting Slag ◽  
Mineral Powder

The possibility of using polydisperse steel-smelting slag for the production of type B asphalt concrete is investigated, the possibility of its use as a mineral powder, crushing screening and crushed stone is considered. As a result of the study, it was found that a promising area for the use of slag raw materials in the technology for the preparation of asphalt mixes is: as a mineral powder - without additional processing steps; crushing screening - with the development of additional technological operations. The use of raw materials as crushed stone is impractical because of the high average density of the final asphalt mixture. Based on the test results, the characteristics of the fatigue properties of asphalt concrete from fine-grained dense mixtures of type B made on mineral powders from slag and limestone were obtained. It was established that at the initial moment, a large number of cycles to failure are characterized by compositions on slag powder, however, samples from this series tested after 45 days showed a significant rigidity increase and were destroyed earlier than similar samples on limestone. Obviously, this phenomenon is associated with an increase in the brittle properties of the material due to the formation of crystallization-condensation bonds in the structure of asphalt concrete containing slag.

Sustainable Development of Mineral-Raw Complex

2018 ◽  
Vol 9 (3) ◽  
pp. 479
Author(s):  
Zhanna SHUGAIPOVA ◽  
Mukhtar ERNUR ◽  
Ayazhanov KUANYSH ◽  
Akmaral ABDRAKHMANOVA
Keyword(s):  
Sustainable Development ◽  
Management System ◽  
Raw Materials ◽  
Enterprise Management ◽  
Resource Saving ◽  
Combined Use ◽  
The Republic ◽  
Enterprise Management System ◽  
Effective Use ◽  
Further Development

At present, the acute question of rational resource consumption and resource saving arises in the republic. Sustainable development of the economy of Kazakhstan should be based on the planned and effective use of natural resources, in terms of the combined use of raw materials by enterprises of the mineral and raw materials complex. The current situation at the enterprises of the mineral and raw materials complex testifies to the need for the further development of the enterprise management system in order to obtain an additional chain of surplus value by passing out valuable components from raw materials. In connection, fundamental scientific research is needed, which makes it possible to scientifically substantiate improvement of the enterprise management system, the results of which can significantly improve the efficiency of the enterprise in the rational use of raw materials, both in terms of its processing, and in the direction of preserving the ecology of the region.

scholarly journals The Results of Studying the Technique of Making Golden Horde Products Made of Non-Ferrous Metals (from the Collection of the Volgograd Regional Museum of Local Lore)

2019 ◽  
pp. 61-74
Author(s):  
Kseniya Kovaleva
Keyword(s):  
Raw Materials ◽  
Secondary Raw Materials ◽  
Ferrous Metals ◽  
Subsequent Processing ◽  
Wide Range ◽  
Digital Microscope ◽  
Non Ferrous Metals ◽  
Group 2 ◽  
Large Groups ◽  
Cast Products

Introduction. The article is devoted to the results of tracing research of things made of non-ferrous metals from the collections of Tsarevskoe, Vodyanskoe, and Mechetnoe settlements, stored in the funds of the Volgograd regional museum of local lore. Method. The author used the method of tracing. The digital microscope DigiMicro 2.0. was used to record the results of observation. Analysis. The author studied 63 products and allocated two large groups: 1) cast products and 2) forged products. The study fixed the following operations for cast products: the use of open and closed molds, casting in composite forms, casting by the smelted model, by the impression, liner casting. In group 2, the following methods of forging were singled out: forming forging, punching, drawing and forging of wire, bending, drawing, twisting, hacking, cutting. Soldering was used to connect the elements. After forming, most of the products passed the subsequent processing associated with the removal of defects (primarily post-casting) and the application of decor (hammering, engraving, stamping, polishing). In addition, the decor could be formed during the creation of the mold (cast decor). Results. As a result of the study, it was noted the use of a wide range of techniques and operations with a comparative technological simplicity for most products. It was also noticed that a few things have been specially prepared for the processing, and it demonstrates the use of secondary raw materials.

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