scholarly journals Experimental research on the behavior of the pneumatic transport of fine-grained iron

2017 ◽  
Vol 163 ◽  
pp. 012011 ◽  
Author(s):  
V Andrei ◽  
M Hritac ◽  
N Constantin ◽  
C Dobrescu
Keyword(s):  
Experimental Research ◽  
Pneumatic Transport ◽  
Fine Grained

Experimental Research on the Qualitative Characteristics of Iron Ores and Ferrous Waste That Can Be Used in Blast Furnace Mixt Injection Technology

2019 ◽  
Vol 70 (11) ◽  
pp. 3835-3842
Author(s):  
Mihai Dumitru Tudor ◽  
Mircea Hritac ◽  
Nicolae Constantin ◽  
Mihai Butu ◽  
Valeriu Rucai ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Experimental Research ◽  
Raw Materials ◽  
Coal Dust ◽  
Production Costs ◽  
Iron Ores ◽  
Fine Grained ◽  
Experimental Laboratory ◽  
Injection Technology ◽  
Direct Use

Direct use of iron ores in blast furnaces, without prior sintering leads to a reduction in production costs and energy consumption [1,2]. Fine-grained iron ores and iron oxides from ferrous wastes can be used together with coal dust and limestone in mixed injection technology through the furnace tuyeres. In this paper are presented the results of experimental laboratory investigations for establishing the physic-chemical characteristics of fine materials (iron ore, limestone, pulverized coal) susceptible to be used for mixed injection in blast furnace. [1,4]. The results of the experimental research have shown that all the raw materials analyzed can be used for mixt injection in blast furnace.

scholarly journals Modeling the composition of fine-grained modified concrete elaborated with vibropressing technology

2019 ◽  
Vol 298 ◽  
pp. 00133 ◽  
Author(s):  
E. R. Pyataev ◽  
A. Y. Ushakov
Keyword(s):  
Portland Cement ◽  
Experimental Research ◽  
Frost Resistance ◽  
Building Materials ◽  
Road Construction ◽  
Average Density ◽  
Optimal Composition ◽  
Fine Grained ◽  
Main Components ◽  
Modifying Additive

The article analyzes the property requirements of small-piece products used in road construction, specially those related to water and frost resistance. It describes the main features of the vibration technologies involved in the manufacture of building materials, in particular, paving slabs. The article presents conclusive results, obtained through scientific research, which allow us to establish the influence of both, the costs of the main components and the parameters of vibration compression, on the properties of the final product. Combining the analysis of classical methods with the results of experimental research, a methodology has been developed for reaching an optimal composition of fine-grained vibropressed concrete modified with active additives. It is shown that the particular strength achieved from the combination of vibroformed fine-grained concrete, whose average density is 2270–2320 kg/m3, with polymer multifunctional modifiers, is mainly due to the use of Portland cement, a modifying additive, and the pressure conditions employed during the experiment..

The Rationalization of Parameters of the Sucion Intake Device for Packed Bulk Construcion Materials

2014 ◽  
Vol 1020 ◽  
pp. 385-390
Author(s):  
S.A. Evtyukov ◽  
A.A. Schimanova ◽  
Jarosław Rajczyk ◽  
Marlena Rajczyk
Keyword(s):  
Incomplete Information ◽  
Experimental Research ◽  
Building Materials ◽  
Air Flow ◽  
Pneumatic Transport ◽  
Compressed Air ◽  
Optimal Parameters ◽  
Effective Operation ◽  
Sufficient Degree

Pneumatic transport is one of the most progressive means of mechanization and automation of loose goods transportation. It is used in aluminium, chemical, food, textile, construction and other industries. However, wide use of pneumatic transport is limited by the incomplete information on this subject. In this article provides a description of the design of useful models of the suction intake device пневмотранспортной installation. A useful model was developed with the participation of the author of the staff of the Department of transport and technological machines architectural-building University. The author has developed stages of the suction intake unit and carried out theoretical and experimental research on each step to achieve the most effective operation of the device. In view of the fact that for the main parameters of the suction intake devices of the theory of destroying the fabric of a flooded the air flow is not developed to a sufficient degree, the author has studied the process of propagation and interaction of flooded jet with the surface. The article systematized and presents the results of experimental research on the interaction of flooded jets of air sealing with building materials of different kinds. The author determined the optimal parameters of the process of packed loosening material jets of compressed air at the fence material suction fence device.

Separation of fine-grained material from a pneumatic transport flow

1971 ◽  
Vol 7 (9) ◽  
pp. 678-681
Author(s):  
M. K. Pis'men ◽  
N. A. Kirichenko ◽  
V. G. Ermakov
Keyword(s):  
Pneumatic Transport ◽  
Fine Grained ◽  
Fine Grained Material ◽  
Transport Flow

Physical-Mechanical Properties of the Modified Fine-Grained Concrete Subjected to Thermal Effects up to 200°С

2014 ◽  
Vol 633-634 ◽  
pp. 1013-1017 ◽  
Author(s):  
Volodymyr I. Korsun ◽  
Nikolai Vatin ◽  
Artem Korsun ◽  
Darya Nemova
Keyword(s):  
Mechanical Properties ◽  
Axial Compression ◽  
Experimental Research ◽  
Thermal Effects ◽  
Elevated Temperatures ◽  
Concrete Strength ◽  
Fine Grained

The article introduces the results of the experimental research of the influence of elevated temperatures on the modified fine-grained concrete strength and strain under axial compression.

scholarly journals Experimental Research on the Qualitative Characteristics of Iron Ores and Ferrous Waste That Can Be Used in Blast Furnace Mixt Injection Technology

2019 ◽  
Vol 70 (11) ◽  
pp. 3835-3842
Author(s):  
Mihai Dumitru Tudor ◽  
Mircea Hritac ◽  
Nicolae Constantin ◽  
Mihai Butu ◽  
Valeriu Rucai ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Experimental Research ◽  
Raw Materials ◽  
Coal Dust ◽  
Production Costs ◽  
Iron Ores ◽  
Fine Grained ◽  
Experimental Laboratory ◽  
Injection Technology ◽  
Direct Use

Direct use of iron ores in blast furnaces, without prior sintering leads to a reduction in production costs and energy consumption [1,2]. Fine-grained iron ores and iron oxides from ferrous wastes can be used together with coal dust and limestone in mixed injection technology through the furnace tuyeres. In this paper are presented the results of experimental laboratory investigations for establishing the physic-chemical characteristics of fine materials (iron ore, limestone, pulverized coal) susceptible to be used for mixed injection in blast furnace. [1,4]. The results of the experimental research have shown that all the raw materials analyzed can be used for mixt injection in blast furnace.

Reconfigurable electronics application in intelligent space developments

2017 ◽  
Vol 8 (2) ◽  
pp. 107-111 ◽  
Author(s):  
Cs. Szász
Keyword(s):  
Experimental Research ◽  
Intelligent Environment ◽  
Space Applications ◽  
Practical Solution ◽  
Fine Grained ◽  
Theoretical Approaches ◽  
Intelligent Space ◽  
Wide Range ◽  
Microelectronics Technology ◽  
Original Approach

Reconfigurable electronics technology represents a challenging implementation paradigm of actual stage microelectronics. This paper presents the advantages of using hardware reconfigurable microelectronics technology in intelligent spaces development and implementation. An original approach is unfolded which emphasize the versatility of reconfigurable electronic circuit’s topology based configurations in a wide range of intelligent environment applications. The introduced theoretical approaches have been validated then by a real-time intelligent space implementation example. There have been exploited the huge re-routing abilities of reconfigurable electronics associated with its fine-grained operating behaviours. The final result of the theoretical and experimental research efforts is a well-fitted and practical solution for a wide range of intelligent space applications development and implementation.

scholarly journals To the Question of the Influence of the Intensity of Active Centers on the Surface of Mineral Fillers on the Properties of Fine-Grained Concrete

2019 ◽  
Vol 8 (9S2) ◽  
pp. 219-222
Keyword(s):  
Fly Ash ◽  
Experimental Research ◽  
Thermal Power ◽  
Copper Smelting ◽  
Cement Concrete ◽  
Active Centers ◽  
Fine Grained ◽  
Power Stations ◽  
Thermal Power Stations ◽  
Mineral Fillers

The paper presents the results of experimental research on the evaluation of the possibility of using the indicators of surface activity of dispersed minerals as a criterion for determining the most effective way of their application in cement concrete. The obtained results allow to recommend to use such fillers as: quartz sand, barchan sand, wastes of electro smelting production for filling of cement concretes by the method "filling of cement in concrete": gliege, basalt, wastes of copper smelting production, fly ash of thermal power stations, zeolitecontaining rocks for filling of cement concretes by the method "filling of cement in concrete".

Application of an image management system in microscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1052-1053
Author(s):  
Richard S. Chemock
Keyword(s):  
Data Storage ◽  
Cost Savings ◽  
Image Data ◽  
Analytical Techniques ◽  
Operational Mode ◽  
Fine Grained ◽  
Image Recording ◽  
Primary Output ◽  
Capacity Data ◽  
Image Management System

One of the most common tasks in a typical analysis lab is the recording of images. Many analytical techniques (TEM, SEM, and metallography for example) produce images as their primary output. Until recently, the most common method of recording images was by using film. Current PS/2R systems offer very large capacity data storage devices and high resolution displays, making it practical to work with analytical images on PS/2s, thereby sidestepping the traditional film and darkroom steps. This change in operational mode offers many benefits: cost savings, throughput, archiving and searching capabilities as well as direct incorporation of the image data into reports.The conventional way to record images involves film, either sheet film (with its associated wet chemistry) for TEM or PolaroidR film for SEM and light microscopy. Although film is inconvenient, it does have the highest quality of all available image recording techniques. The fine grained film used for TEM has a resolution that would exceed a 4096x4096x16 bit digital image.

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