scholarly journals The Research of Fluxed Sinter Production with Sufficiently High Strength and Improved Technological Properties

2012 ◽  
Vol 14 (4) ◽  
pp. 351
Author(s):  
K.T. Zhantasov ◽  
Zh.M. Altybayev ◽  
M.K. Zhantasov ◽  
M.M. Yeskendirova ◽  
B.A. Lavrov ◽  
...  
Keyword(s):  
Steel Industry ◽  
High Strength ◽  
Coal Industry ◽  
Raw Material ◽  
Charge Composition ◽  
Exothermic Effect ◽  
Technological Properties ◽  
Technological Parameters ◽  
Sinter Production ◽  
Nickel Cobalt

This article is dedicated to utilization of substandard phosphorite fines and simultaneously producing of fluxed sinter. Optimal technological parameters of the sintering process of phosphate fines with addition of the substandard underoxidized nickel-cobalt-containing ore and the internal overburden of coal mining industry were established. The addition of the nickel-cobalt ore and internal overburden containing nickel, cobalt, silicon and aluminum in the charge composition permits to produce the fluxed sinter with improved technological properties, with acidity module 0.90-1.08, with the high impact, abrasion and compression strength. Decrease of the fines output (less than 6 mm) on 10-15% (relatively) in comparison with the existing (traditional) sintering technology is explained with a content of carbon (up to 50%) in the internal overburden and increase of eutectic liquid phase amount at the expense of fusible components of the nickel-cobalt ore. The result of this process is the fluxed sinter with sufficiently high strength and improved technological properties. At the subsequent electro thermal sublimation of phosphorus from the fluxed sinter with high strength properties the ferrophosphorus alloy forms which contains the alloying metals such as Ni, Co, Cr and others. These additions containing silicon and aluminum create an exothermic effect, which leads to decreasing of fuel and energy consumptions. The suggested technology allows to decrease a melting point of the charge on 100 °C due to presence of fusible compounds in the sintering mixture and to reduce the fuel and energy consumption for the sinter production. Found that the introduction of nickel-cobalt ore and internal overburden of coal industry in the sinter charge provides a fluxed sinter phosphorite with module of acidity 0.93-1.08 sufficiently high strength and improved technological properties, in addition, at subsequent electric sublimation of phosphorus from fluxed sinter the ferro alloy alloyed with nickel and cobalt is formed, which is a valuable raw material for the steel industry. According to the research it is assumed that the replacement of natural quartzite used as a flux to the nickel-cobalt-chromium containing ore and internal overburden, which include about 45% of silicon, as well as transition of nickel, cobalt and chromium ore into ferrophosphorous alloy with subsequent sales of its steel industry to a higher price will significantly improve the technical and economic indices of phosphorus production.

scholarly journals Research of functional and technological properties of minced meat products with using fish raw materials

2018 ◽  
Vol 20 (90) ◽  
pp. 22-26
Author(s):  
Y. Matsuk ◽  
I. Marchenko ◽  
V. Pasichnyi
Keyword(s):  
Raw Materials ◽  
Control Sample ◽  
Meat Products ◽  
Absorption Capacity ◽  
Raw Material ◽  
Partial Replacement ◽  
Production Cycle ◽  
Technological Properties ◽  
Technological Parameters ◽  
Minced Meat

The article is devoted to the improvement of the recipes of minced meat products with using fish raw materials and the study of organoleptic and functional and technological properties of developed minced meat systems and finished products. The research has been carried out on the rational combining of meat and fish raw materials and the expansion of assortment of minced semi-finished products. The formulations of minced meat systems for the production of meat semi-finished with a partial replacement of the main raw material to fish raw materials have been developed. The organoleptic and functional and technological parameters of minced meat systems and finished products are investigated. According to the results of the organoleptic evaluation, it was found that partial replacement of meat raw material with minced fish does not worsen the sensory characteristics of minced meat products. It is established that in comparison with the control sample there is an improvement of functional and technological indicators. In particular, the moisture content increased by an average of 6.1%, moisture absorption capacity – 5.91%, energy absorption capacity – 2.49%, fat-retaining ability – 2.52%. The obtained results confirmed the expediency of using minced meat with pollack in the technology of minced meat semi-finished products with due observance of the parameters of production cycle of heat treatment of products. It has been theoretically substantiated and experimentally confirmed the technology of meat products using minced meat and developed recipes. It has been established that with careful selection of components that are part of minced meat semi-finished products with the addition of fish raw materials can increase the organoleptic and functional and technological parameters of finished products. The obtained data suggest that the improved recipes of minced meat semi-finished products can be recommended for production by enterprises of the meat industry and restaurants

Technology Research on Waterworks Sludge for Ceramsite

2011 ◽  
Vol 383-390 ◽  
pp. 3352-3355
Author(s):  
Jun He ◽  
Qi Shan Wang
Keyword(s):  
Bulk Density ◽  
Performance Test ◽  
High Strength ◽  
Raw Material ◽  
Technology Research ◽  
Technological Parameters ◽  
Factors Affecting ◽  
Concrete Blocks ◽  
Waterworks Sludge ◽  
Bearing Structure

On the basis of analysis of the component of the sludge from Lingzhuang waterworks and the technological process was studied which use the sludge for raw material to produce the sludge ceramsite. Through a lot of experiments, the several factors affecting the nature of ceramsite were developed and the technological parameters were confirmed. A performance test of the ceramsite shows that when the optimized temperature is 1130°C~1170 °C, the optimized baking time is 5 min, strength of tube pressure of the ceramsite is 8 MPa, bulk density of it is 1200 kg/m3compressive strength of concrete blocks is 40 MPa. So the products could meet the demand on high strength ceremsite. It is gained that the way of waterworks sludge for ceramsite is feasible and can bring certain economical profits, social profits and environmental profits. The products can be used widely to load bearing structure in construction profession.

Operation intensification methods of aggressive industrial sewage neutralization facilities

2020 ◽  
Vol 76 (11) ◽  
pp. 1149-1153
Author(s):  
N. S. Tsarev ◽  
V. I. Aksenov ◽  
I. I. Nichkova
Keyword(s):  
Cold Water ◽  
Specific Productivity ◽  
Technological Properties ◽  
Technological Parameters ◽  
Preliminary Heating ◽  
Sediment Treatment ◽  
Circulating Water ◽  
Equipment Operation ◽  
Sediment Volume ◽  
Industrial Sewage

To neutralize the waste pickling solutions and rinsing water, resulting from cleaning metal products s surface of rust by acids solutions, lime is used. Being cheap, this method of sewage neutralization has considerable drawbacks. Forming in the technological pipes strong gypsum depositions and low specific productivity of the equipment for sediment dewatering are most significant of them. Characteristic of aggressive industrial sewage, formed at pickling of ferrous metals presented. Methods of elimination of drawbacks of industrial sewage neutralization by lime considered, including stabilization of neutralized industrial sewage and control of properties of the sediment formed. It was noted, that stability of the circulating water can be provided by accelerating of crystallization of the forming gypsum sediments by introducing in it fine priming powder and heating the neutralized water up to 65-70 °С followed by thermal softening of a part of circulating water, removed out of the circulating system. It was shown, that the heating of the water and the ongoing changes of the composition and properties of the sediment result in decrease of filtration resistance 2-3 folds, increase of deposition speed 3-4 folds and decrease the sediment volume 1.5-2 folds comparing with lime neutralization in cold water. Calculated dozes of lime at the heating were taken the same as at the regular lime neutralization. Elimination of the circulating water oversaturation by bi-water gypsum can be reached also by addition into the water of powder-like gypsum pulp - priming powder for microcrystals of the gypsum, followed by aeration during 30-40 min. This method was tested under industrial conditions. Technological properties of the forming sediment can be improved by sediment treatment by flocculants and preliminary heating of the neutralized water up to 65-70 °С. Control of technological properties of the sediment is done by addition of flocculants and heating of the neutralized water. Recommendations for improving operation of the neutralization facilities presented with indicating particular technological parameters of the equipment operation for sewage and sediment treatment. 

FUNCTIONAL PURPOSE RABBIT MEAT ROLL

2021 ◽  
pp. 132-139
Author(s):  
Zhuldyz Isakovna Satayeva ◽  
Nurbibi Sovetovna Mashanova ◽  
Ainur Bolatbekovna Nurtayeva ◽  
Erzhan Talgatuly Akimzhanov
Keyword(s):  
Nutritional Value ◽  
Meat Product ◽  
Nutritional Supplements ◽  
Physicochemical Analysis ◽  
Raw Material ◽  
Technological Parameters ◽  
New Type ◽  
Rabbit Meat ◽  
High Level ◽  
Functional Purpose

The article presents the results of the development of a new type of rabbit meat product - meatloaf. The consumption of healthy and nutritious foods rich in macro- and micronutrients, low in lipids and cholesterol, as well as various nutritional supplements, is preferable for the modern consumer. One of the promising types of meat as a dietary raw material is rabbit meat. As a result of the studies, a physicochemical analysis was carried out, the amino acid composition of rabbit meat was determined, and an organoleptic and tasting assessment of rabbit meatloaf was given. The technological scheme, the recipe is developed and the technological parameters of the meatloaf preparation are determined. It is recommended to store meatloaf no more than 10 days at a temperature of 0–2 °C with a humidity of 85-90 %. Meatloaf from rabbit meat has functional properties, contains a large number of vitamins PP – 174.3 mg, potassium minerals – 5052.8 mg, magnesium – 382.4 mg, phosphorus – 2875 mg, sodium – 8598.7 mg.The results of the nutritional and biological value of rabbit meatloaf allow us to make an informed conclusion about the high level of their nutritional value, which clearly illustrates the values of quality indicators.

Technological aspects of alcohol distillates production from non-traditional sugar-raw materials

2021 ◽  
Vol 9 (16) ◽  
pp. 90-97
Author(s):  
Kateryna Danilova ◽  
◽  
Oksana Zavarzina ◽  
Keyword(s):  
Raw Materials ◽  
Biologically Active ◽  
Raw Material ◽  
Material Base ◽  
Growth Substances ◽  
Technological Properties ◽  
Actual Problem ◽  
Cane Molasses ◽  
Yeast Biomass ◽  
Nitrogen Phosphorus

An actual problem of the alcohol industry development is the expansion of the raw material base through the use of new, cheaper types of carbohydrate sources. Recently, glucose-fructose syrup has been of increasing interest to producers of ethanol. Among the producers of craft drinks, in particular rum-based drinks, cane molasses is in increasing demand. The article presents the technological aspects of the fermentation process of nonconventional sugar-containing raw materials on the example of glucose-fructose syrup and cane molasses in ethanol by different yeast strains. It is determined that glucose-fructose syrup and cane molasses are raw materials depleted of nitrogen, phosphorus and growth substances necessary for the yeast activity. To improve the technological properties of raw materials in the molasses, nitrogen, phosphorus nutrition and corn extract as a growth substance shall be added to a mash. Glucose-fructose syrup is of pH 3.68 and of acidity 0.12, which negatively affects the fermentation. It is established that in order to create optimal living conditions for yeast, it is necessary to add substances to the glucose-fructose syrup that will contribute to the safety of development and prevent the pH 3.5. It was determined that the alcohol yield from 1 ton of glucose-fructose syrup is 31.0 dal, from 1 ton of cane molasses is 24.0 dal on the yeast 46ED and 22 dal on the TegaYeast without the use of growth substances and vitamins necessary for the reproduction of yeast biomass. Under conditions of improving the technological properties of the mash from the glucose-fructose syrup and cane molasses by adding biologically active substances promoting the synthesis of yeast biomass, the ethanol content in the fermented mashes increases up to 11.9 12% vol.

Comprehensive Utilization of Pyrite with High Content of Asrenic

2012 ◽  
Vol 524-527 ◽  
pp. 965-968 ◽  
Author(s):  
Dan Liu ◽  
Shu Ming Wen ◽  
Yong Jun Xian ◽  
Hai Ying Shen ◽  
Shao Jun Bai ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Steel Industry ◽  
Raw Material ◽  
High Quality ◽  
Comprehensive Utilization ◽  
Roasting Temperature ◽  
Chinese Steel Industry ◽  
Iron Bearing

A technology of “arsenic removing- sulfuric acid producing- residuals for ironmaking” is proposed for comprehensive utilization of pyrite with high content of arsenic. The effect of roasting temperature and time on arsenic removing was investigated. The arsenic removed residuals obtained under the optimal arsenic removed conditions, was used to be proceeded for sulphur volatilization test. The results demonstrate that final residuals with 63.53% of Fe can be used for steel industry. This technology can be used to fully utilize sulphur and produce high quality concentrate as iron-bearing feed for steel industry, which will help to reduce the pollution of arsenic and extend raw material sourcing for Chinese steel industry.

scholarly journals ANALYSIS OF THE PROCESS OF IRON SAND PROCESSING INTO SPONGE IRON IN ORDER TO SUPPORT THE DEFENSE INDUSTRY OF STEEL RAW MATERIALS

2019 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Sovian Aritonang ◽  
Jupriyanto Jupriyanto ◽  
Riyadi Juhana
Keyword(s):  
Steel Industry ◽  
Raw Materials ◽  
Steel Production ◽  
Sponge Iron ◽  
Steel Plates ◽  
Raw Material ◽  
Northern Coast ◽  
Shipping Industry ◽  
Iron Sponge ◽  
The Government

<p>The number of iron sand reserves is mostly spread in the coastal waters of Indonesia, from the coast of Sumatra, the southern of Java to Bali, the beaches of Sulawesi, beaches in East Nusa Tenggara (NTT), and the northern coast of Papua. Total reserves for ore are 173,810,612 tons and metal as much as 25,412,652.62 tons. But its utilization was not optimal because PT. Krakatau Steel, and PT. Krakatau Posco has produced steel plates only 24,000 to 36,000 tons per year. While the need for steel plates for the shipping industry each year requires 900,000 tons per year. With the need for raw material for steel plates in the form of iron sponges with Fe ≥ 60%, PT. Krakatau Steel is still imported from abroad. The proof is PT. Krakatau Steel before and during the year 2000 still imported Iron Ore Pellets from the countries of Sweden, Chille and Brazil for 3,500,000 tons per year. This condition is the cause of the national steel industry unable to compete with the foreign steel industry because imported raw materials are subject to import duties. This is an opportunity to build a steel raw material company because all this time the steel raw material industry in Indonesia has only two companies. This condition encourages the manufacture of iron sponges, with the process of making iron sponges with technology adapted to installed production capacity. This study analysed the manufacture of iron sponges using Cipatujah iron sand, as raw material for the manufacture of iron sponges, with the results obtained in the form of iron sponges with the highest levels of Fe ≥60.44%. This can be used for the purposes of raw materials for steel making PT. Krakatau Steel (PT. KS), because so far PT. KS claims that Fe &lt;60% local sponge iron products. This can encourage the independence of steel raw materials, which impacts on the independence of the defence industry. But the government must also protect and prioritize steel raw materials for national production for national steel production. With the national government steel industry, the consortium of vendors supplying raw material (iron sponge) to maintain the quality and supply of continuous sponge iron.</p><p><strong>Keywords</strong>: iron sand, iron pellet, iron sponge</p>

scholarly journals Naked oat is promising raw material for deep grain processing

2019 ◽  
Vol 20 (5) ◽  
pp. 447-455
Author(s):  
N. R. Andreev ◽  
V. G. Goldstein ◽  
L. P. Nosovskaya ◽  
L. V. Adikaeva ◽  
E. O. Golionko
Keyword(s):  
Agricultural Research ◽  
Starch Content ◽  
Raw Material ◽  
Coarse Grained ◽  
Cellulolytic Enzymes ◽  
Technological Parameters ◽  
Naked Oat ◽  
Grain Processing ◽  
North East ◽  
The North

During the research conducted at the All-Russian Research Institute for Starch Products there has been developed a technological mode of using cellulolytic enzymes to reduce the viscosity of grain pulp obtained by grinding naked oat grains soaked in a sodium metabisulphite solution. As the experimental data had been processed, the optimum technological parameters of the process were determined: the consumption of the enzyme preparation Viscoferm was 200 g/t of grain and the dura-tion of fermentation by constant stirring for 2.5 hours at pH 4.6 and temperature 50°C. Under laboratory conditions there has been studied the possibility of starch processing of naked oat grain samples Vyatka, Percheron, 857h05, 766 h05 varieties grown in the Federal Agricultural Research Center of the North-East named N.V. Rudnitsky. Technological assessment based on grain processing in the laboratory using the “plant on the table” method has shown that the yield of coarse-grained starch A in the processing of naked oat using cellulolytic enzymes is 51.4-53.9%, i.e. higher than that of filmy oats, rye Falenskaya 4 and Vyatka 2, wheat and triticale. Low starch content in fiber (7.7-8.7% dry substances DS of fiber) was found in comparison with the results obtained from the processing of filmy oats, Falenskaya and Vyatka 2 rye varieties, wheat and triticale (11.2 - 13.9% DS of fiber). Fiber output by the processing of naked oats is 7.3 - 8.8% DS of grain, by the processing of other types of grain 10.3 - 17.5% DS of grain. The yield of small-grain starch B in the processing of the studied varieties of naked oat is 19.2 - 20.8% DS of grain, that is higher than this value obtained by processing of filmy oats and wheat, but lower than by pro-cessing of rye and triticale. Isolated carbohydrate-protein concentrate, including starch B and proteins, is recommended for use with the extract and fiber as a component for the production of feed.

scholarly journals High strength glass-ceramics sintered with coal gangue аs а raw material

2019 ◽  
Vol 51 (3) ◽  
pp. 285-294
Author(s):  
Dang Wei ◽  
H.-Y. He
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Glass Ceramics ◽  
High Strength ◽  
Coal Gangue ◽  
Raw Material ◽  
Sintering Process ◽  
Forming Process ◽  
Sintered Glass ◽  
Utilization Ratio

High strength lightweight glass-ceramics were fabricated with coal gangue and clay as main raw materials. The utilization ratio of coal gangue, the ratio of the coal gangue with clay, mineralization agents, forming process and sintering process on the properties of the fabricated glass-ceramics were optimized. The utilization ratio of coal gangue reached 75, and the ratio of coal gangue to clay was 3/1, as an optimal property was observed. The optimal sintering temperature was found to be 1370?C. At this optimal temperature, the sintered glass-ceramics showed the main phase of mullite and spindle and so showed high strength, low density, and low water absorbance. The appropriate amounts of codoping of the TiO2, ZnO, and MnO2/dolomite as mineralization agents obviously enhanced the properties of the glass-ceramics. Process optimizations further determined reasonable and optimal process parameters. The high strength lightweight glass-ceramics fabricated in this work may be very suitable for various applications including building materials, cooking ceramics, and proppant materials, et al.

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