scholarly journals Melt Volume Flow Measurement in the Mineral-Wool Production Process

2011 ◽  
Vol 57 (04) ◽  
pp. 293-303 ◽  
Author(s):  
Jinpeng Chen ◽  
Marko Hočevar ◽  
Brane Širok
Keyword(s):  
Production Process ◽  
Flow Measurement ◽  
Mineral Wool ◽  
Volume Flow ◽  
Wool Production

scholarly journals Modern control of mineral wool production process

2013 ◽  
Vol 67 (2) ◽  
pp. 375-384
Author(s):  
Stanko Stankov
Keyword(s):  
Control System ◽  
Production Process ◽  
Raw Materials ◽  
Mineral Wool ◽  
System Control ◽  
Compressor Station ◽  
Process Variables ◽  
Data Archiving ◽  
Wool Production ◽  
And Control

In this paper, the control of the plant for mineral wool production consisting of a number of the technological units of different sizes and complexity is considered. The application of modern equipment based on PLC (Programmable Logic Controller) and SCADA (Supervisory Control And Data Acquisition) configuration provides optimal control of technological process. Described supervisory and control system is consisting of a number of units doing decentralized distributed control of technological entities where all possible situation are considered during work of machines and devices, which are installed in electric drive and are protected from technological and electrical accident. Transformer station and diesel engine, raw materials transport and dosage, processes in dome oven, centrifuges, polycondensation (PC) chamber, burners, compressor station, binder preparation and dosage, wool cutting, completed panel packing and their transport to storehouse are controlled. Process variables and parameters like as level, flow, velocity, temperature, pressure, etc. are controlled. Control system is doing identification of process states changes, diagnostic and prediction of errors and provides prediction of behavior of control objects when input flows of materials and generates optimal values of control variables due to decreasing downtime and technic - economical requires connected to wool quality to be achieved. Supervisory and control system either eliminates unwanted changes in the production line or restricts them within the allowable limits according to the technology. In this way, the optimization of energy and raw materials consumption and appropriate products quality is achieved, where requirements are satisfied in accordance with process safety and environmental standards. SCADA provides a visual representation of controlled and uncontrolled parts of the technological process, processing alarms and events, monitoring of the changes of relevant variables, data archiving, choice of either automatic or manual control. Supervison of the production process by intuitive screens on monitors, and display terminal is allowed to the operator. Certain objects of plant are represented by the appropriate symbols whose color is changed depending on status (working, inactive status, stand by, failure, etc.). Symbols are associated with characteristic parameters and the variables whose current values are monitored by graphics and/or tables. Special attention is paid to alarm conditions occurring in the case of failure or exceeding the set limits of certain values. Alarm signal is manifested by sound and signal light, with a corresponding text message on the screen, with the date and time of occurrence and the request to the operator to confirm the alarm in some way. Alarms and other important data are stored in the database, including information about the time of removing the causes of the alarm emergence. Beside data acqusition and processing data of process variables and installed equipment state, the system also provides data archiving and generating and printing of daily, weekly and monthly reports. Based on these reports, analysis and appropriate corrections are being done to increase productivity. Specific data of drive functionality, raw materials and amounts of final products are available to management at any moment via Internet. Information about status of embedded equipment, devices and protective elements provide planning periodical reviews and remont some lines or whole plant. Then replacement of certain parts significantly contributes to efficienty of current, preventive and investment maintenance. In this way, reliability and safety of production plant are increased. With complete automatization of production process that is complex and multidisciplinary, demages and energy consumption are considerably decreasing, workforce is optimized, good quality of final product is achieved and plant work with full capacity is provided. Some technical solutions (diesel engine and transformer station supervisory, compressor station supervisory, electric drive regulation, dedusting system control, HVAC (heating, ventilation, and air conditioning) system control, transport and dosage system control) applied at realization of supervisory and control system for mineral wool production process, can be also applied to regulation large number of industrial processes.

Volume flow measurement in hemodialysis shunts using time-domain correlation.

1999 ◽  
Vol 18 (3) ◽  
pp. 177-183 ◽  
Author(s):  
F Basseau ◽  
N Grenier ◽  
H Trillaud ◽  
C Douws ◽  
A Saint-Amon ◽  
...  
Keyword(s):  
Time Domain ◽  
Flow Measurement ◽  
Volume Flow ◽  
Time Domain Correlation

Volume flow measurement using Doppler RF decorrelation

2000 ◽  
Vol 108 (5) ◽  
pp. 2519-2519
Author(s):  
Theresa A. Tuthill ◽  
J. Brian Fowlkes ◽  
Jonathan M. Rubin ◽  
Anne L. Hall
Keyword(s):  
Flow Measurement ◽  
Volume Flow

Development and characterization of a volume flow measurement system for low-pressure gases

Measurement ◽  
2020 ◽  
Vol 166 ◽  
pp. 108230
Author(s):  
Bortolino Saggin ◽  
Diego Scaccabarozzi ◽  
Arash Valiesfahani ◽  
Pietro Valnegri ◽  
Marianna Magni ◽  
...  
Keyword(s):  
Measurement System ◽  
Flow Measurement ◽  
Low Pressure ◽  
Volume Flow

Monitoring mineral wool production using real-time machine vision

1999 ◽  
Vol 5 (2) ◽  
pp. 125-140 ◽  
Author(s):  
F. Trdič ◽  
B. Širok ◽  
P.R. Bullen ◽  
D.R. Philpott
Keyword(s):  
Machine Vision ◽  
Real Time ◽  
Mineral Wool ◽  
Time Machine ◽  
Wool Production

Research and Development of Mineral Wool Production with High Temperature Industrial Residual Materials

2013 ◽  
Vol 743-744 ◽  
pp. 301-305
Author(s):  
Guo Chao Qi ◽  
Feng Jun Shan ◽  
Qu Kai Zhang
Keyword(s):  
Blast Furnace ◽  
High Temperature ◽  
Energy Conservation ◽  
Solid Waste ◽  
Blast Furnace Slag ◽  
Ferrous Metal ◽  
Mineral Wool ◽  
Insulation Material ◽  
Wool Production ◽  
Furnace Slag

Mineral wool is a type of important material for basic infrastructure development and national economy. It is widely used as insulation material in construction industries. Some high temperature industrial solid waste materials, such as blast furnace slag, cyclone slag and some metal slag, after composition adjusting and reheating, can be directly used to produce mineral wool. The recycle of residual heat in the hot solid wastes can decrease the cost of mineral wool and is beneficial for energy conservation, environmental protection and social sustainable development. The development and technical characteristics of mineral wool production with blast furnace slag, cyclone slag and some non-ferrous metal slag have been analyzed in this paper, and the energy conservation technique in managing high temperature solid waste has been also discussed.

scholarly journals Calibration-Free Volume Flow Measurement Principle Based on Thermal Time-of-Flight (TToF)

2011 ◽  
Vol 25 ◽  
pp. 765-768 ◽  
Author(s):  
E. Engelien ◽  
O. Ecin ◽  
R. Viga ◽  
B.J. Hosticka ◽  
A. Grabmaier
Keyword(s):  
Free Volume ◽  
Flow Measurement ◽  
Time Of Flight ◽  
Volume Flow ◽  
Thermal Time ◽  
Measurement Principle ◽  
Calibration Free

Spatial Angle-Corrected Fetal Volume Flow Measurement (SAFM)

2011 ◽  
Vol 37 (8) ◽  
pp. S29-S30
Author(s):  
T.M. Scholbach ◽  
J. Stolle ◽  
J. Scholbach
Keyword(s):  
Flow Measurement ◽  
Volume Flow

Volume flow measurement using doppler and grey-scale decorrelation

2001 ◽  
Vol 27 (1) ◽  
pp. 101-109 ◽  
Author(s):  
Jonathan M. Rubin ◽  
Theresa A. Tuthill ◽  
J.Brian Fowlkes
Keyword(s):  
Flow Measurement ◽  
Volume Flow ◽  
Grey Scale

scholarly journals Investigation on the Nonconstant Behavior of a Vortex Flow Meter with Narrow Gauge Pipe via Conducting Measurements and Numerical Simulations

1970 ◽  
Vol 61 (3) ◽  
pp. 247
Author(s):  
Bence Fenyvesi ◽  
Csaba Horváth
Keyword(s):  
Numerical Simulations ◽  
Cross Sections ◽  
Flow Measurement ◽  
Vortex Flow ◽  
Volume Flow Rate ◽  
Volume Flow ◽  
Diagnostic Investigation ◽  
Number Range ◽  
Wide Range ◽  
The Given

Vortex shedding flowmeters can be used for a wide range of flow measurement applications with various kinds of fluids. The critical point in applying this method comes from the assumption that the Strouhal number is constant for the given Reynolds number range. In some cases – typically regarding flowmeters with narrow gauge pipes –, this assumption is only partially met, thus limiting the widespread use of these instruments in certain industrial appliances. The paper presents a diagnostic investigation on the effects of this nonconstant behavior. The method elaborated in this report can be applied to vortex flowmeters with narrow gauge pipes. In these instruments – usually due to the narrow cross-sections of the gauge pipe – measurement possibilities are limited, thus it is not possible for the user to determine the effects of the nonconstant behavior. To conduct these investigations, a calibration rig was designed and assembled. The presented diagnostic method combines measurements and numerical simulations. The results of the investigations can be used in the data processing phase, in order to reduce the uncertainty of the volume flow rate measured by vortex flowmeters.

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