Electrical Drive & their Control | Nagpur University ...
1. a) Explain the block diagram of an electric drive. [06 M] b) A 230V, DC Motor drives a load whose torque remains constant. The motor takes a armature current of 25Amp from the supply and its speed is 500rpm. If the speed is to be rise to 700rpm.
CYCLOCONVERTERS - UV
• Cement mill drives • Ship propulsion drives • Rolling mill drives • Scherbius drives • Ore grinding mills • Mi ne winders 1.Operation Principles: The following sections will describe the operation principles of the cycloconverter starting from the simplest one, single -phase to single -phase (1 φ-1φ) cycloconverter. 1.1.
Shearing Process and Shears – IspatGuru
Shearing Process and Shears. Shearing is a simple process used for the cutting of metals. It is basically a metal fabrication process and is being used in rolling mills at several places for hot as well as for cold cutting of the steel material. Shears can be used to cut steel and other materials of any size or shape.
Introduction of Energy-Efficient Operating Regimes for the ...
Block diagram of the control system of a motor in the mill. ... "Systems modeling of hot- and cold-rolling mills by using study of vibrations in continuous cold-rolling mills as an example," Chernye Metally, No. 8, 17–25 (1996). 3.
EQUIPMENT CONDITION MONITORING TECHNIQUES
equipment maintenance together with receiving credit towards the ABS Continuous Survey – Machinery. These Guidance Notes become effective on the first day of the month of publication. Users are advised to check periodically ABS on thewebsite to verify that this version of these Guidance Notes is the most current.
Fundamentals of Instrumentation, Process Control ... - EIT
Block diagram showing the elements of a process control loop. The most important signals used in process control are as follows: Process Variable (PV) Manipulated Variable (MV) In industrial process control, PV is measured in the field and acts as an input to an automatic controller which takes action based on its value.
S.e 2003 - SlideShare
Also define maskable and non-maskable interrupts. [8] b) Draw and explain the block diagram of 8259 interrupt controller. State the sequence of events that takes place when an interrupt is recognized by 8259. [10] Q9) a) Draw and explain block diagram of 8251 in detail. Explain its use in any application.
AU716533B2 - Process for the continuous production of a ...
AU716533B2 AU70311/96A AU7031196A AU716533B2 AU 716533 B2 AU716533 B2 AU 716533B2 AU 70311/96 A AU70311/96 A AU 70311/96A AU 7031196 A AU7031196 A AU 7031196A AU 716533 B2 AU716533 B2 AU 716533B2 Authority AU Australia Prior art keywords sheet strip cold rolling pickling line strip Prior art date Legal status (The legal status is an assumption and is not a legal …
Chapter 5 - Track Components and Materials | Track Design ...
The rolling of block rail at a U.S. mill came about in part because the steel company involved politely declined to roll groove rail. They agreed to instead roll the block rail because it was both a relatively simple section to roll and, more importantly, they could roll it on existing machinery at a location other than their rail mill.
TMACS TM Advanced Control Solutions
Hot Mills TMACS' high-speed communication and signal resolution ... Engineering Tool contains the standard IEC control functions for discrete and continuous control. ... Metal Rolling Gap Control Block Diagram Strip Transport Tension Control Block Diagram TMdrive-Navigator – Simple Drive Configuration and Maintenance ...
Modeling and Simulation of Electric-hydraulic Control ...
Fig. 2 Block Diagram of Transfer Function of Hydraulic Bending System III. DYNAMIC SIMULATION ANALYZE A. Parameters of Hydraulic Bending System The positive bending work roll system of some 1580 hot tandem rolling mill is studied. One side of every stand (of the up and down work roll) has 4 bending cylinders, which are controlled by a servo valve.
Danieli Automation - Process Control Systems ‹ Danieli
Since 1969. With more than 50 years of experience focused on metals worldwide, Danieli Automation is your technological partner for production management, process and equipment control, advanced instrumentation, and state-of-the-art electrical solutions.
Automatic Tension Control in the Continuous Roughing Train ...
The automatic tension control system of the three-stand continuous roughing train of the 2000 hot-rolling mill at the Magnitogorsk Metallurgical Combine is analyzed. Deviations in interstand tension that are several-fold higher than the set values and inadmissible compression are detected.
9.10.1.1 Sugarcane Processing
A simplified process flow diagram for a typical cane sugar production plant is shown in Figure 9.10.1.1-1. The cane is received at the mill and prepared for extraction of the juice. At the mill, the cane is mechanically unloaded, placed in a large pile, and, prior to milling, the cane is cleaned. The milling
Unfavourable Reactive Power in a Rolling Mill
The basic block diagram of the rolling mill is shown in Fig. 2. Fig. 2. Basic block diagram of the rolling mill power system . 4. Substation R5. The four very important rolling stands (Stands I to IV) are powered from the substation R5, which the filter-compensation unit is also connected in. The substation
P.E.S. College of Engineering, Mandya - 571 401
Draw the block diagram of electric drive and explain each components of it. 4 ... excited dc drive under continuous mode with relevant circuit and waveforms 10 ... Draw the single line diagram and explain the various stages of operation in rolling mill 10. SI.NO Model Question Paper Marks CO's Levels UNIT-I
Rolling Mill - an overview | ScienceDirect Topics
Santanu Chakraborty, in Treatise on Process Metallurgy: Industrial Processes, 2014. 6.5 Rolling Mills. The rolling mill facilities were designed to meet the production requirement of Table 1.The rolling mills complex was proposed to include a light and medium merchant mill with breakdown group of stands for rolling blooms into billets and an intermediate in-line heat compensating furnace; a ...
What is Process Manufacturing? Definition and Examples
Process manufacturing is a production method that creates goods by combining supplies, ingredients or raw materials using a formula or recipe. It is frequently used in industries that produce bulk quantities of goods, such as food, beverages, refined oil, gasoline, pharmaceuticals, chemicals and plastics. The production process often requires a ...
Bar and Wire Rod Mill | Steel Plantech
Bar and Wire Rod Mill. Steel Plantech provides the Bar and Wire Rod Rolling System that meet variety of customer needs. For example, we provide solutions that meet customer needs such as the Slit Rolling System and the High Speed Mill (40m/s) which increase productivity, the Hot Direct Rolling System which is directly connected with a continuous caster, not via a reheating furnace, and thereby ...
Hot rolling mill production line with temperature ...
In hot strip mills, initial controller set points have to be calculated before the steel bar enters the mill. Calculations rely on the good knowledge of rolling variables.
Producing High Quality Niobium-Bearing Steels Using the ...
electric furnace melts either as hot band or in cold rolled gauges produced on continuous annealing (CA) or continuous galvanizing (CG) lines. Similarly, with the addition of vacuum ... Fig. 1 Block diagram showing different steelmaking routes up to the caster ... Hot Rolling Mill Cooling Rotating Turret Transfer Furnace Scrap DRI Stage 1 Scrap ...
Method of controlling the rolling efficiency in hot ...
A method of controlling the rolling efficiency in a continuous hot rolling process. A rolling schedule and a conveying schedule are determined on a mill line for the slabs arranged in succession based on an aimed extraction temperature of the slabs from a heating furnace and a predetermined temperature at the exit of a finish mill.
Control device for a continuous hot-rolling mill ...
FIG. 1 is a block diagram which shows the general configuration of a control device for a tandem-type continuous hot-rolling mill. This continuous hot-rolling mill has the 1st stand 10 i, the 2nd stand 10 i +1, and so forth. While there are usually five to seven of such stands, for the sake of simplicity in this description, just two stands ...
ELECTRICAL DRIVES & CONTROL
1.1 block diagram of an electrical drives 7 1.1.1 basic component (or) elements of eletcric drives 8 1.2 factors influencing the choice of electrical drives 9 1.3 classification of electric drives with factor 10 1.3.1 group drive 10 1.3.2 individual drive 10 1.3.3 multimotor drive 11 1.4 load conditions in motor 11
Steelmaking Process V8 CMYK - Home | worldsteel
Hot-rolled products Long Products Flat Products Finishing operations Limestone Coal Scrap Alternative fuels Natural gas Billets Blooms Slabs worldsteel Co-products and their uses Please note: This diagram aims to show steelmaking today. This diagram …
Process flow diagram for the waste heat boilers ...
The company operates a facility in Pisco, 241 km South from Lima, on the Pacific Ocean, a facility including a meltshop with a capacity of 850.000 tpa of liquid steel, and rolling mills with a ...
Steel Rolling Technology Handbook (2nd Revised Edition)
steel making technology, basic principles of width change, plate mills, hot strip mills, quality assurance, testing and inspection, bar and rod mills. It will be a standard reference book for professionals, entrepreneurs, those studying and researching in this important area …
Board of Technical Examinations, Bengaluru Course Title ...
Draw the process flow diagram of steel mill and explain process involvedRef 3 01 Hour 14. Select a suitable motor and drive in steel mills and justify the selection reverse hot rolling reverse cold rolling, continuous hot 01 Hour
Prof. Gu's Solutions & the Birth of the Theory of ASRD ...
5.3 Adaptive Control of Continuous Hot-Rolling Mills Adaptive control is the control method used by a controller which must adapt to a controlled system with parameters which vary, or are initially uncertain. In continuous hot-rolling application, the zero procedure is to set the measure reference for the GM-AGC (Gauge Meter-Automatic Gauge ...
Page 1 of 3 DC Motors speed synchronization for rolling mills
DC Motors speed synchronization for rolling mills The project aims at designing a system which is capable of synchronizing the speed of the slave motor (motor-2) with the master motor (motor-1). This system finds very useful in paper mills, steel industries etc..,. The master motor speed can be set