gas consumption costing in ingot reheating in rolling mill

3.8 reheating furnace - SlideShare

3.8 reheating furnace 1. 3.8 REHEATING FURNACEOne F O fired furnace has been installed for rolling mill.Its broad specifications and operating conditions are shown at Annexure no.6/1.Following is discussed from energy conservation view:Chemical composition of FO – For further calculations, we would assume following%age composition and G C V (As per ISS).GCV Carbon …

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(PDF) Waste heat recovery in steel bars re-rolling mill ...

They reported an energy consumption of 441.66 kWh/ tonne for the reheat and rerolling of steel from ingot into metal bars. Fuel oil is the major energy form in the reheat furnace with energy input of about 342 kWh/t. The combustion air to the reheat furnace is preheated to …

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CNG GAS FIRED FURNACE | BILLET REHEATING FURNACE

These all units mentioned above are all satisfied with our gas furnaces with consumption of gas between 5 to 5.5 kilo per hour or oil rate is 5 to 5.5 per hour. We design these furnaces in such a way that their gas consumption period is reduced to low and die casting units those using our furnaces have experienced such that they have never before.

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Air Pollution Control in Re-Rolling Mills Final

Re-Rolling Mills at Indore -35 Re-Rolling Mills in Sanwer Road I/A -Manufactures Steel Bars, Flats, Angles, Channel from Iron Scrap/Steel Ingots -Reheating Furnace is Used for Metal Softening -Attenuation Done As Per Required Size/Shape -Coal is Used as Main Fuel -Specific Coal Consumption of 100-110 kg/MT -Mill Capacity 4 to 10 MT/H -Capital Investment of Rs 30-150 Lacs

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(PDF) Analysis of the potential for energy demand and ...

The need to reheat steel ingots before rolling makes t his a ... The saleable finished steel product is a direct output of the hot-rolling mill or the ... Both coal and natural gas consumption .

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ROLLING MILL STAND - RMT Tools

Re-Heating Furnace We make Pusher Type Billet Reheating Furnace up to 50 Tones/hr. capacities. These furnaces are mostly used in Steel Rolling Mills. Salient features Low fuel consumption of …

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ROLLING MILL - SEIL

The quality of the rolling process is maintained by state of the art automation using Siemens PLC's. ABB DC and VFD Drives. The close monitoring of the rolling process is done by using IBA Software for monitoring events in 0.1 millisecond gap simultaneously across the rolling process. 8. The re-bars are tracked in the mill by Hot metal detectors.

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RollingAluminum: FromtheMine ThroughtheMill

AdvantagesofAluminum Thepropertiesofaluminummakeitoneofthe mostadvantageousandversatilematerialsin usetoday.Aluminumis: Lightweight—Aluminumanditsalloys weigh ...

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Steel | Encyclopedia.com

After the pig iron had been converted into wrought iron, it was run through a rolling mill, which used grooved rollers to press out the remaining slag. Cort ' s rolling mill was patented in 1783 and could make iron bars about 15 times faster than the old hammer method. From 1850 to 1865, great advances were made in iron and steel processing.

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How to Start Rolling Mill Industry, Manufacturing Plant ...

In rolling mills, intermediate steel products are given their final shape and dimension in a series of shaping and finishing operations. Most of the slabs are heated in reheating furnaces and rolled into final shape in hot– or cold–rolling or finishing mills. Rolling of steel is one of the most important manufacturing processes for steel.

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A History of Wednesbury

The 10 inch mill was closed down, and two 75 ton oil fired furnaces were added. By this time the 15 inch section rolling mill produced over 300,000 tons of steel a year. As a result, annual output increased nearly threefold to over 300,000 tons of ingots, 200,000 …

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Hot Rolling Cost Reduction: Preventing Rejections And ...

In this important metal forming operation, refractory and fuel for the reheating furnace (such as furnace oil, pulverized coal or gas) are the major costs. Any process or technique to reduce these costs will automatically improve the profitability of the rolling mill. The following problems are encountered in the case of refractories:

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HOT ROLLING PRACTICE – An Attempted Recollection

rollable temperature in a reheating furnace. This is the starting point of the hot rolling mill practice. Reheating Furnace x Cold stocks are heated to make them soft and thus suitable for rolling. x Furnace has three parts: walls, roof and hearth. Furnace is lined with several layers of refractory bricks. It is insulated by glass wool.

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Reheating Furnace in Rolling Mill Industries

Reheating Furnace in Rolling Mill Industries. In steel plants reheating furnaces are used in hot rolling mills to heat the steel stock (Billets, blooms or slabs) to temperatures of around 1200 deg C which is suitable for plastic deformation of steel and hence for rolling in the mill…

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ROLLING MILL FURNACE | BILLET REHEATING FURNACE

d) Low fuel consumption of 0.3 x 106 K.Cal/tonne. e) Burning losses are minimum (less than 1%). f) These furnaces are either oil fired or gas fired. g) Continuous availability of stock at the rated capacity. h) Capable of heating billets/ingots upto 200 mm sq. for top …

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CRUCIBLE FURNACE - CHANDRAPUR FURNACE

Gas/oil fired and electric die casting furnaces Die casting furnaces which runs by Gas i.e. natural gas and also oil fired furnaces . We made these furnaces in such a way that their consumption is very low. Our product quality is very good in the market. Till date what ever furnace we supply has given to our customers very good results.

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Discharge Temperature, Using Higher Mill Speed, Using ...

Using Higher Mill Speed. To save the power consumption, the spare capacity of motors can be utilized to increase the mill speed of rolling. This also saves the specific heat consumption as time taken for rolling cycle will be less and rolling can be started with less discharge temperature, due to higher finishing temperature of the finished product.

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Innovative Forming and Fabrication Technologies: New ...

via reduction of energy consumption. A good example of energy consumption reduction is the energy efficiency assessment that the U.S. DOE performed with one of the Pechiney Rolled Products division plants. 4. The energy efficiency assessment identified melting/casting, ingot reheating and rolling operations as the primary energy consumers in ...

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Casting | Industrial Efficiency Technology & Measures

The specific energy consumption should be 40% lower than that needed for a traditional rolling mill. Energy savings of 60% with regard to the traditional cycle are possible. In an application in Japan equipment and construction costs were approximately ¥200 …

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Hallside | Clydebridge

That mill is engaged this week in rolling 10-in beams. (2) Two plate mills, and (3) one 14-in bar mill. The machinery just referred to is being increased by the addition of a new plate mill with rolls 26in in diameter and 6 ft long; an 18in bar mill with three-high roughing rolls, and lifting feeding table; a 14in bar mill and a 10in guide mill.

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Although continuous casting was conceived and patented …

from ingot casting to rolling of the semi-finished shape (slab, bloom or billet) can be seven or more hours. ... reheating furnaces and primary rolling mills reduces the consumption of fuels (natural gas,oil and in-plant by-product gases) and electricity.

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Benefits of Increased Use of Continuous Casting by the U.S ...

reheating furnaces and primary rolling mills reduces the consumption of fuels (natural gas,oil and in-plant by-product gases) and electricity. This energy saving is approximately one million BTU's per ton cast. In Japan, where one half of all steel is produced by the continuous casting

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Aluminum BestPractices Plant-Wide Assessment Case Study

West ia, had identified the melting/casting, ingot reheating, and rolling operations as the primary energy consumers in the plant. Using the results of these studies as a starting point, Pechiney conducted a plant-wide assessment (PWA) to analyze energy consumption and to identify opportunities to improve energy efficiency and productivity.

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(PDF) Solid wastes generation in steel industry and their ...

furnace, steel melting shop and rolling mill. T he main solid wastes in steel industry are classified as coke and coal dust, BF slag, SMS slag, mill scale, scrap, oil sludge, fly

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Heating of Steel in Reheating Furnace – IspatGuru

The reheating furnace used for heating the steel materials is normally considered to be having high energy consumption. It also emits good amount pollutants in the atmosphere because the process used for heat generation is the combustion process. Reheating process has considerable influence on the economics of the working of the rolling mill.

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Direct Rolling Concept

This process consumes a lot of fuel in reheating furnace and causes burning loss of around 1.5 -3.5% depending on the type of fuel used. The heating of billet/ingot is not very uniform.

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Roll No 48 | PDF | Steel | Track (Rail Transport)

The 1150mm two high reversing Blooming Mill is designed to roll steel ingots into blooms for Continuous Billet Mill and Rail & Structural Mill. Average weight of steel ingots which are used for rolling is 8 to 9 Ton. SOAKING PITS • Heating of the ingots and soaking at a particular temperature is done in the soaking pits. • 14 groups of ...

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A COST MODEL FOR THE EFFECT OF SETUP TIME REDUCTION …

rolling is related to the level of process integration, which in turn is related to some commonly known operating-modes as illustrated in Fig. 1 (Storck and Lindberg 2007). As lead-time and buffering is reduced, the average temperature of slabs increases. At the same time fuel consumption (energy) in the reheat furnaces of the rolling mill ...

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gas consumption costing in ingot reheating in rolling mill

gas consumption costing in ingot reheating in rolling mill Fuel Use for Billet Reheating Reduced with Oxyfuel Technology Oct 4 2013 The conversion process offers lessons for steel mills that hot work . steel mills that hot work billets ingots slabs and other intermediate steel sections. reducing fuel consumption and maintenance costs without ...

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Industrial energy conservation and the steel industry of ...

For example, introduction of an inert gas (such as argon) at the bottom for stirring improves the chemistry and yield, and, in some operations permits a higher ratio of scrap in the charge.^ In one analysis, if the scrap charge is increased from 25 to 29%, total mill energy consumption decreases by 2.4%.^ There might be strong secondary effects ...

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International Markets for Steel Plant and

slabs-reheating-rolling of blooms to billets. The date of the first installation of ... than that of the ingot casting-primary rolling route [Rosegger, 1979:411. The landmark development in rolling mills in this century was the introduction in 1927 of the (semi-) continous hot strip mill [Blair, 1972:901. Rolling mills …

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Re-Heating Furnace Manufacturer - RMT Tools

We make Pusher Type Billet Reheating Furnace up to 50 Tones/hr. capacities. These furnaces are mostly used in Steel Rolling Mills. Salient features. Low fuel consumption of 0.3 x 106 K.Cal/tone. Burning losses are minimum (less than 1%). These furnaces are either oil fired or gas fired. Continuous availability of stock at the rated capacity.

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SHRI BAJRANG POWER AND ISPAT LIMITED (TMT DIVISION)

directly from CCM to Re Rolling Mill and thus stopped the use of reheating furnace and hence saving fuel & protecting Environment. Energy Consumption DESCRIPTION UNIT 2012-13 2013-14 Production - TMT Bars, MS Rounds & Wire Rod Coil MT 174741.39 178266.16 Total Elect. Energy Consumption Lac kWh 249.52 225.70 Specific Elect.

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(PDF) Energy saving by direct rolling of hot billets ...

In reheating the energy consumption is about 1.2GJ/T of billet. ... steel melt shops usuall y produced either ingots ... Prior to hot rolling mill; Jet gas heating system is more advantageous for ...

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Specialty Metals Production

• US consumption of stainless steel (all product forms) was 2.5 million tons in ... hot rolling ingot to slab blooming mill shear Melting six-stand hot strip mill HRB coil doubled HRB coil (optional) slab reheat hot rolling slabs to bar scale breaker roughing mill hot rolling bar to coil.

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Reheating Furnaces - Reheating Furnace Suppliers ...

Billet Reheating Furnace upto 50 Tonneshr. capacity. These furnaces are mostly used in Steel Rolling Mills. The salient features are:Low fuel consumption of 0.3 x 106 K.Caltonne, Burning losses are minimum ( less than 1% ), These furnaces are either oil fired or gas fired, Contin more...

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