Block Diagram Of Rolling Mills And Its Working

Doi 10.4236eng.2014.61005 corpus id 30768077. strip thickness control of cold rolling mill with roll eccentricity compensation by using fuzzy neural network articlehameed2014striptc, titlestrip thickness control of cold rolling mill with roll eccentricity compensation by using fuzzy neural network, authorwaleed ishaq hameed and khearia a. mohamad, journalengineering,

Tandem cold rolling process is a nonlinear complex system with external and internal uncertainties and significant disturbances. the improvement in the quality of the final output depends on the control strategy of centerline thickness and interstand tension. this paper focuses on interstand tension control problem in 5-stand tandem cold rolling mills.

Over 15 million tons of cold rolled steel are produced annually in the u.s. on multi-stand rolling mills. these mills consist of a sequence of roll stacks through which steel sheet is rolled, successively reducing its thickness to the desired gauge and imparting the desired surface finish.

Fig. 1. block diagram of feeding circuit of coiler motor. fig. 2. mandrel control circuit block diagram. block b is responsible for controlling motor speed in constant power or field weakening mode. this block gets a sample from armature voltage and current and considering dc

A block diagram is a pictorial representation of the cause and effect relationship between the input and output of a physical system. a block diagram provides a means to easily identify the functional relationships among the various components of a control system. the simplest form of a block diagram is the block and arrows diagram. it consists ...

Cycloconveters are extensively used for driving large motors like the one used in rolling mills, ball mills cement kils etc. the out frequency of a cycloconverters can be reduced upto to zero which helps us to start very large motors with full load at minimum speed and then gradually increase the speed of the motor by increasing the output ...

There was plenty more to be commended for after that as suh became a crucial member of the cold rolling mill. in 1995, suh was in control of the rolling equipment brought in from japan at the pohang cold rolling mill 1. i had special orders to figure out how to work with the brand-new equipment without any difficulties as soon as possible.

7. machine tool applications. 8. coal mining. 9. centrifugal pumps. 10. turbo compressors. some industrial applications of electric drives may have several stages by the time the end product is ready from the basic raw material.

Dec 25, 2017nbsp018332nuclear power plant working principle, advantages, disadvantages with diagram working principle. the working principle is that we use the energy of photons to get the drift current flowing in the circuit using reversed bias p-n junction diode p-type and n-type silicon combination. main components. 1. solar panels

Hot-rolling mill khearia mohamad abduladhem a ali dr. r. nagrajan ... the rolling speed for the hot working of the sample also affects the ... i block diagram representation of the rolling system ...

Sms group tailors pickling lines to customers requirements. depending on the capacity, the steel grades, qualities and strip dimensions the plant is equipped with the right technologies.

Drag a gain block into your model window. tap off the quotx1dotquot signal and connect it to the input of this new gain block draw this line in several steps if necessary. connect the output of the gain block to the second input of the sum block. double-click the gain block and enter quotmugm1quot into the gain field. the rolling resistance force ...

The block diagram of the electrical drive is shown in the figure below. the electrical load like fans, pumps, trains, etc., consists the electrical motor. ... their working is independent of the environmental condition. ... rolling mills, paper machines, textile mills,

The production hall for the rolling mill was assumed to cover an area of 73.5 m 2 and the volume of the administrative building to be 40 m 3. the service life of the buildings was 50 years. the rolling mill is made of 57.7 t non-alloyed and low-alloyed steel and stands on a

Working stand is the key stand for cascade control of the working mill stand motors. glrs complete solution for long rolling mills. 2232015 18 bar tracking and mill sequence controls ... glrs complete solution for long rolling mills block diagram for drive control . 2232015 54 glrs complete solution for long rolling mills drive system for ...

Consider the continuous rolling mill depicted in fig. 3.51. suppose that the motion of the adjustable roller has a damping coefficient b, and that the force exerted by the rolled material on the adjustable roller is proportional to the materials change in thickness fs ct x. suppose further that the dc motor has a

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.

Thermal power station process flowchart and diagram. the fuel is transported from mines via trains to the fuel storage facility in a power plant. the fuel transported to the plant is generally bigger in particle size and before it is fed to the boiler furnace it is broken down into smaller pieces using crushers.the fuel is then fed to the boiler generating a large amount of combustion heat.

Dec 29, 1981nbsp018332i claim 1. in a rolling mill looper control system for controlling a looper arm supporting a looper roller adapted to engage a strip of material to be rolled from a first roll stand to a second roll stand, including a direct-current looper motor for applying torque to said looper arm a speed regulator for adjusting the speed of at least one of said first and second roll stands to provide a ...

A dc motor is an electric motor that runs on direct current power. in an electric motor, the operation is dependent upon simple electromagnetism. a current-carrying conductor generates a magnetic field, when this is then placed in an external magnetic field, it will encounter a force proportional to the current in the conductor and to the strength of the external magnetic field.

Block diagram of a vibrating screen pdf ... work diagrams of vibrating screen mobile crushers all,work diagrams of vibrating screen heavy industry is specialized in the design, manufacture and supply of crushing equipment used in mining industry. ... patent us6330982 hammer mill google patents. dec 18, 2001 wherein the vibrating source, which ...

A motor speed control device for a rolling mill, which includes a rolling roll that rolls a metal material, a roll rotation shaft directly connected to the rolling roll, a motor rotation shaft that transmits power to the roll rotation shaft, and a motor that drives the motor rotation shaft, includes a non-contact type speed sensor arranged at a position close to the rolling roll with spacing ...

Explain the construction and working of a photocell. state its any two applications. types of rolling mills and its applications crystal oscillator and its applications. types of das and its applications state the working principle of gears and give its applications. state the concept of continuous wave radar. sketch its block diagram.

Jun 01, 2020nbsp018332this work deals with the simulation model of multi-machines system as cold rolling mill is considered as application. drivers of rolling system are a set of dc motors, which have extend ...

1980. fig. 4 shows a block diagram of the steering model, where yc is strip steering, yc0 is initial strip steering, is a constant which depends on rolling conditions, v is the entry strip velocity, s is the laplacian operator, p is the total rolling load, b is the strip width, ls

Jul 01, 1993nbsp018332the systems configuration allows it to effectively cope with changes in rolling conditions. exit gaug target level gm183age fig.2 configuration of fgcc system for hot strip mills 2.1. agc sub-system fig.3 shows a simplified block diagram of the gm-agc gaugemeter agc. the gm173agc comprises two elements.

May 16, 2020nbsp018332when the load is intermittent as in rolling mills, the drive motor used is an induction motor with a flywheel mounted on its shaft to smooth out the intermittent loading to a low value. the m-g set provided with a flywheel is known as ilgner set. the synchronous motor is not suitable for intermittent loading because of its constant speed ...

Block mills. using a block mill, which drives multiple rolling mills and has been used on 100ms class wire rod lines, as the bar steel finishing mill, will achieve speeds far beyond the finishing speed of about 20ms that was the limit of conventional mills. rolling using ultra-hard rolls provides advantages such as precise measurements and ...

Some other applications where cycloconverters can be used are cement mill drives, ship propulsion drives, rolling mills, and mine winders, washing machines, water pumps, and used in industries as well. if any further more queries on this topic or on the electrical and electronic projects leave the comments section below. photo credit

Leading basic automation, process control, technological packages and process optimization systems created by primetals technologies play a key role in stable processes and high system availability.