explain with block diagram of continuous hot rolling mill

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Automatic Tension Control in the Continuous Roughing Train

Oct 24 2017 0183 32 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...

OVERVIEW OF THE STEELMAKING PROCESS

Continuous casting Design by Blisscommunication / Cover photo ThyssenKrupp Steel / Tubes photo Salzgitter The process shown above is illustrative only and is not designed to show the steelmaking process in detail Not all steel plants produce all of the products shown in this diagram worldsteelorg OVERVIEW OF THE STEELMAKING PROCESS...

CZECH TECHNICAL UNIVERSITY IN PRAGUE FACULTY OF

In Section 2 of their work they explain the strip mill and its involved control system In Section 3 they explain why there exists a roll eccentric disturbance in rolling mills and related problems caused by this In section 4 they present how new modified repetitive...

continous mill specification

Keywords productive process continuous improvement lean theory of constraints SMED 1 Introduction The tissue paper market is a highly fragmented one meaning that the top 10 paper mill 6MP6 as well as on the scheduled maintenance stoppages processes for both mills at the site paper mill 5 and paper mill 6MP5 Get Price Series 1 Hardinge...

Automatic Gauge Control in Rolling Process Based on

Nov 24 2014 0183 32 Automatic rolling process is a high-speed system which always requires high-speed control and communication capabiliti Meanwhile it is also a typical complex electromechanical system distributed control has become the mainstream of computer control system for rolling mill Generally the control system adopts the 2-level control structure x2014 basic automation Level 1 and process...

US6167736B1

The Figure is a block diagram illustration of a portion of a continuous hot rolling mill 20 that rolls product along a pass line 22 A first hot metal detector 24 detects the presence/absence of product along the pass line 22 and provides a signal indicative thereof on a line 26 to a controller 28...

91011 Sugarcane Processing

A simplified process flow diagram for a typical cane sugar production plant is shown in Figure 91011-1 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...

Method of controlling a hot strip finishing mill

Jun 30 1993 0183 32 FIG 1 is a block diagram illustrating a construction of an apparatus for controlling a hot strip finishing mill for embodying this invention in combination with a rolling system Referring to the same Figure a rolled material 8 is rolled to a target size by rolling stands 1about7 arranged at predetermined spacings...

ELECTRICAL CONTROL EQUIPMENT FOR THE CONTINUOUS by

The casting wheel forms a square bar which is fed through a rolling mill operation The twelve stands of the rolling mill form a 5/16-inch diameter copper rod After leaving the rolling mill the rod is treated with a dilute sulfuric acid rinsed coated and finally wound into coils of various sizes 8 000 to 16 000 pounds The coils are...

Rolling Mill Plant Electric Single Line Diagram

Continuous mill plant for rolling steel plates Nippon What is claimed is 1 A continuous mill plant for producing steel plates having a ratio of maximum rolling speed to minimum rolling speed variable from at least 30 to no more than 100 at a continuous rated output of at least one alternating current electric motor for driving at least one rolling mill and means for controlling the speed...

block diagram of steel manufacturing industreis

Function Block Diagram FBD for S7-300 and S7-400 Programming A5E00706955-01 iii Preface Purpose This manual is your guide to creating user programs in the Function Block Diagram FBD programming language The manual also includes a reference section that describes the syntax and functions of the language elements of Function Block Diagram...

Parameter Identi cation and Filter Design for a Repetitive

Abstract In hot rolling mill products periodic surface defects are encountered due to the inherent eccentricity present in the rolls These defects can be considered as periodic disturbance to the system To remove these defects a controller design based on Repetitive Control method is investigated By rst approximating hot rolling mills from...

Soaking Pit Eurotherm by Schneider Electric

The rolling stages may be several from Primary and Secondary mills through Scarfing Roughing Intermediate and Finishing mills As the ingots are being fed to the mills every few minutes but the heating and soaking cycles take hours ingots weigh several tonnes many soaking pits are needed to ensure availability of material to the mills 24 hours a day...

Industrial drives and control notes pdf

Unit 8 INDUSTRIAL DRIVES Rolling mill drives cement mill drives paper mill and explain its operation 1213 Draw the block diagram of voltage source inverter fed squirrel cage induction Motor and explain its operation 13 process flow diagram process involved including selection of Suitable motors drives BLOCK DIAGRAMS OF PROCESS FLOW...

Control device for a continuous hot

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...

PDF Advanced Control Techniques for Rolling Mills

Block diagram of a single mill stand input and a lumped-parameter hot-rolling mill model and regulating systems is considered for continuous-time systems with different time-delays in...

US5479803A

A setting means sets variables for expressing the process model a target thickness value of the rolled material a target interstand tension value of the rolled material variables for responses of the thickness and the interstand tension and variables for adjusting the responses of a control system for controlling the thickness and the interstand tension...

Usak University Journal of Material Sciences

continuous bodies that were joined by a Winkler elastic layer They have shown that the influence of moment of bending rolling force on the vibration of work roll is related with the bending roll force Lü et al 22 used the Least squares method to identify the hot rolling mill abnormal vibration model on the basis of foregoing analysis...

Pune University BE Electrical Industrial Drives and

Feb 28 2013 0183 32 i Minimum temperature during duty cycle ii Temperature when the motor is loaded continuously QII a Explain basics of vector control induction motor drive with block diagram only 6 b Explain application of ASD in rolling mills 6 c Explain working and advantages of...

Hot steel plate rolling mill system and rolling method

Mar 01 1994 0183 32 A mill including large-diameter work rolls which are directly driven is disposed in an upstream stage of a hot strip finish rolling mill train and mills including small-diameter work rolls which are driven by back-up rolls or intermediate rolls are disposed in middle and downstream stages of the hot strip finish rolling mill train so that a strip can be rolled with strong draft and at a low...

Roll Velocity

541 Hot rolling of steel Hot rolling of a 50 mm thick C-Mn steel slab reduced by 25 in one pass is presented below The slab is heated to a uniform temperature of 1050 176 C and cooled for 15 seconds in air The process parameters are roll radius 340 mm roll velocity 22 rpm and the friction coefficient is 025...

Prof Gu s Solutions the Birth of the Theory of ASRD

Oct 01 2009 0183 32 53 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...

PDF ElEctric Motors Control SyStemS Electric Motors and

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Steel Billet Reheating An Expert Approach

Figure 52 Block Diagram of the Current System 46 Figure 53 Block Diagram of the Proposed System 46 Figure 54 MMI Billet Profile Screen 49 Figure 55 SOP Product Selection Screen 53 Figure 56 Schematic of the Mill Sensor Layout 53 Figure 57 Hot Metal Detector HMD - an optical position sensor Signal Quality 54...

ELECTRICAL DRIVES CONTROL

11 block diagram of an electrical drives 7 111 basic component or elements of eletcric drives 8 12 factors influencing the choice of electrical drives 9 13 classification of electric drives with factor 10 131 group drive 10 132 individual drive 10 133 multimotor drive 11 14 load conditions in motor 11...

Examination June/July lndustrial Drives and Applications

With a neat circuit diagram and waveforms explain the chopper control of series motor 10 Marks b A 230V 960rpm and 2004 separately excited dc motor has an armature resistance of 0020 The motor is fed from a chopper which provides both motoring and braking operations The source has a voltage of 230V Assuming continuous conduction...

Thickness Control for a Steel Beam

Figure 1 Beam Shaping by Rolling Cylinders Figure 2 Rolling Mill Stand The desired H shape is impressed by two pairs of rolling cylinders one per axis positioned by hydraulic actuators The gap between the two cylinders is called the roll gap The goal is to maintain the x and y thickness within specified toleranc...

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 and others interested in the field of steel rolling...

15EE61T Industrial Drives and Control Electrical 6th Sem

Feb 21 2020 0183 32 Draw the process flow diagram of steel mill and explain process involved Ref 3 01 Hour Select a suitable motor and drive in steel mills and justify the selection reverse hot rolling reverse cold rolling continuous hot rolling continuous cold rolling Ref 3 01 Hour...

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...

Rolling Mill

Santanu Chakraborty in Treatise on Process Metallurgy Industrial Processes 2014 65 Rolling Mills The rolling mill facilities were designed to meet the production requirement of Table 1The 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...

rolling mill plant single line diagram

A continuous mill plant for rolling steel plates having one or a plurality of rolling mills The form of an area between the lower and upper limit lines in each 5 is a diagram showing a speed cone of a rolling mill modified...

Metal casting processes

RGanesh Narayanan IITG ME 222 Manufacturing Technology - I 3-0-0-6 Introduction to manufacturing processes Casting processes Moulding materials and their requirements Patterns Types and various pattern materials...

Automatic Detection and Localization of Surface Cracks in

rolling mill faults Traditionally the inspection process has been carried out visually through human inspectors However human inspection is subjective error-prone tedious and time consuming This paper presents an initial study to validate the feasibility of automated inspection of continuously cast hot slabs using computer vision techniqu...

The development of the electromechanical screw

The mechanisms control scheme and the signals transmission scheme of the rolling mill were composed The block diagram of the screw-down mechanism motion control system was developed The simulation results were compared with the data of electromechanical screw-down mechanism of the Magnitogorsk Steel Works hot plate rolling mill 5000...

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...

EP0615793A2

A mill including large-diameter work rolls which are directly driven is disposed in an upstream stage of a hot strip finish rolling mill train and mills including small-diameter work rolls which are driven by back-up rolls or intermediate rolls are disposed in middle and downstream stages of the hot strip finish rolling mill train so that a strip can be rolled with strong draft and at a low...

Degree BE Course Code EE8353 1 Introduction 2Drive

Method of Average losses equivalent power equivalent Torque 14 Draw the block diagram of electrical drive system AU NOV 2009 CO1 K1 15 Mention the functions of Power modulators AU NOV 2007 CO1 K1 Power modulators power modulators regulate the power flow from source to the motor to enable the motor to develop the torque speed characteristics required by the load...

Diploma Engineering INDUSTRIAL DRIVES CONTROL DIPLOMA

1321 Draw the process flow diagram of reverse hot rolling steel mill and reverse cold rolling mill and Explain various process involved-only rolling mills 1322 Select suitable motor and drive for reverse hot rolling mil and reverse cold rolling mill and justify the same four quadrant operation...

Rolling of Metals Process and Principles With Diagram

The rolling process is shown in Fig 21 Rolling is done both hot and cold It is accomplishes in rolling mills A rolling mill is a complex machine having two or more working rollers supporting rollers roll stands drive motor reducing gear flywheel coupling gear etc Rollers may be plain or grooved depends upon the shape of rolled product...

PDF The Work Roll Bending Control System of the Hot

A majority of modern rolling mills to elimin ate the roll bending valu e during the operation are equipped with a work roll bending system WRBS 4 WRBS has a hydraulic cylinders at the roll...