scholarly journals The assessment of technical and economic indicators of gas cleaning systems working on various types of coal

2020 ◽  
Vol 1441 ◽  
pp. 012017
Author(s):  
P A Batrakov ◽  
E V Yakovleva ◽  
A N Mrakin ◽  
A A Selivanov ◽  
G R Mingaleeva ◽  
...  
Keyword(s):  
Economic Indicators ◽  
Gas Cleaning ◽  
Technical And Economic Indicators

scholarly journals Smelting options for carbon ferrochrome based on ore raw materials, middlings and their technological evaluation

2022 ◽  
Vol 320 (1) ◽  
pp. 51-59
Author(s):  
S. Baisanov ◽  
◽  
Ye.Zh. Shabanov ◽  
K.V. Grigorovich ◽  
R.T. Toleukadyr ◽  
...  
Keyword(s):  
Large Scale ◽  
Raw Materials ◽  
Main Idea ◽  
Economic Indicators ◽  
Processing Plant ◽  
Technological Parameters ◽  
Gas Cleaning ◽  
Carbon Ferrochrome ◽  
Technological Evaluation ◽  
Technical And Economic Indicators

The article presents the results of large-scale laboratory tests carried out in the conditions of the Chemical and Metallurgical Institute named after V.I. Zh. Abishev on the use of briquetted mono-charge in the smelting of carbon ferrochrome on a 250 kVA furnace. The purpose of these studies was to determine the technological parameters of the use of briquetted mono-charge containing in its composition chrome ore, wastes from the production of high-carbon ferrochrome, middlings and various carbonaceous reducing agents. The main idea of using these briquettes was to multiply the contact surface of the reductant and ore, which should speed up the technological process. The principal possibility of smelting a standard alloy using briquetted mono-charge is shown. The alloy for individual charge options meets the requirements of the standards. In comparison with the technology without the use of briquettes, the mono-charge technology has shown advantages in all main parameters. The technology with the use of briquettes from the dust of the AktZF gas cleaning system is distinguished by a low yield of non-standard metal and slag, the bulk of the material goes into the gas collection system. Technologies from briquettes from fines pellet production area of Donskoy ore mining and processing plant and flash have very low specific technical and economic indicators and cannot be recommended for industrial use. Improvement of briquetting modes and technology of their smelting is required. The technical and economic indicators were higher than the current one, showed briquettes from ore and coke of the People's Republic of China, briquettes of ore from borlin and shubarkol coals of Kazakhstan.

scholarly journals EVALUATION OF TECHNICAL AND ECONOMIC INDICATORS OF GAS CLEANING SYSTEMS WHEN WORKING ON VARIOUS COAL BRANDS

2019 ◽  
Vol 7 (3) ◽  
pp. 003-009
Author(s):  
P. A. Batrakov ◽  
◽  
E. V. Yakovleva ◽  
A. N. Mrakin ◽  
A. A. Selivanov ◽  
...  
Keyword(s):  
Economic Indicators ◽  
Gas Cleaning ◽  
Technical And Economic Indicators

Intensification of the process of obtaining basic bases as the basic components of low-curing lubricants

2020 ◽  
Vol 06 ◽  
pp. 48-50
Author(s):  
S.f. Antonov ◽  
◽  
E.F. Kutsevich ◽  
A.I. Matveeva ◽  
R.V. Bartko ◽  
...  
Keyword(s):  
Filtration Rate ◽  
Oil Content ◽  
Economic Indicators ◽  
High Melting ◽  
Polymer Additive ◽  
Modifying Additives ◽  
Base Oils ◽  
Technical And Economic Indicators ◽  
Dewaxing Process

Variants of the intensification of the solvent dewaxing process, which increase the yield of base oils, are described. One of the promising ways to improve the technical and economic indicators of the dewaxing process is the use of modifying additives. The work shows that the introduction of a polymer additive requires a decrease in the filtration rate and, accordingly, an increase in the performance of the dewaxing unit. This results in a petrolatum with a reduced oil content, which is a qualifying factor for the production of high-melting ceresins, protective-wax components, and lubricants for various purposes.

RECOMMENDATIONS FOR THE CHOICE OF MILKING INSTALLATIONS IN LOOSE HOUSING SYSTEMS OF COWS

2020 ◽  
Author(s):  
В.В. ГОРДЕЕВ ◽  
В.Е. ХАЗАНОВ
Keyword(s):  
Dairy Cows ◽  
High Performance ◽  
Large Scale ◽  
Dairy Farms ◽  
Economic Indicators ◽  
Technical Level ◽  
Housing Systems ◽  
Working Shift ◽  
Technical And Economic Indicators

При выборе типа доильной установки и ее размера необходимо учитывать максимальное планируемое поголовье дойных коров и размер технологической группы, кратность и время одного доения, продолжительность рабочей смены дояров. Анализ технико-экономических показателей наиболее распространенных на сегодняшний день типов доильных установок одинакового технического уровня свидетельствует, что наилучшие удельные показатели имеет установка типа «Карусель» (1), а установка типа «Елочка» (2) требует более высоких затрат труда и средств. Установка «Параллель» (3) занимает промежуточное положение. Из анализа пропускной способности и количества необходимых операторов: установка 2 рекомендована для ферм с поголовьем дойного стада до 600 голов, 3 — не более 1200 дойных коров, 1 — более 1200 дойных коров. «Карусель» — наиболее рациональный, высокопроизводительный, легко автоматизируемый и, следовательно, перспективный способ доения в залах, особенно для крупных молочных ферм. The choice of the proper type and size of milking installations needs to take into account the maximum planned number of dairy cows, the size of a technological group, the number of milkings per day, and the duration of one milking and the operator's working shift. The analysis of technical and economic indicators of currently most common types of milking machines of the same technical level revealed that the Carousel installation had the best specific indicators while the Herringbone installation featured higher labour inputs and cash costs. The Parallel installation was found somewhere in between. In terms of the throughput and the required number of operators Herringbone is recommended for farms with up to 600 dairy cows, Parallel — below 1200 dairy cows, Carousel — above 1200 dairy cows. Carousel was found the most practical, high-performance, easily automated and, therefore, promising milking system for milking parlours, especially on the large-scale dairy farms.

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