air cooled blast furnace slag

How lead is made - material, used, processing, product ...

A blast of air comes through the lower part of the furnace, combusting the coke. The burning coke generates a temperature of about 2,200°F (1,200°C) and produces carbon monoxide. The carbon monoxide reacts with the lead and other metal oxides, producing molten lead, nonmetallic waste slag, and carbon dioxide.Read more

Materials | Free Full-Text | Establishing the Carbonation ...

The ground granulated blast furnace slag (GGBS) was supplied by Civil and Marine Ltd., Maidenhead, UK. The GGBS was an off-white color powder with a fineness of 527 m 2 /kg and a loose bulk density of 1000–1100 kg/m 3. The photo indicating the color of the FA, PC and GGBS is shown in Figure 1 and their chemical compositions are presented in ...Read more

Blast Furnace - an overview | ScienceDirect Topics

Larger blast furnace, use of better prepared burden, recovery of waste energy, and maximum recovery of slag characterize the iron making technology proposed for VSP. The largest blast furnace in India at that time was of 2000 m 3. Compared to this, elsewhere furnaces up to 5070 m 3 had been built.Read more

Steel - Electric-arc steelmaking | Britannica

Most furnace walls are made of replaceable, water-cooled panels; these are covered inside by sprayed-on refractories and slag for protection and to keep heat loss down. The roof is also made of water-cooled panels and has three circular openings, equally spaced, for insertion of the cylindrical electrodes.Read more


BURNING 1. RAW GRINDING : The raw materials are very finely ground in order to produce the raw mix. 2. BURNING : The raw mix is preheated before it goes into the kiln, which is heated by a flame that can be as hot as 2000 °C. The raw mix burns at 1500 °C producing clinker which, when it leaves the kiln, is rapidly cooled with air fans.Read more

Electric arc furnace - Wikipedia

An electric arc furnace (EAF) is a furnace that heats charged material by means of an electric arc.. Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to about 400-tonne units used for secondary steelmaking.Arc furnaces used in research laboratories and by dentists may have a capacity of only a …Read more

ASTM C144 - 18 Standard Specification for Aggregate for ...

Manufactured sand is the product obtained by crushing stone, gravel, or air-cooled iron blast-furnace slag specially processed to ensure suitable gradation. Aggregate for use in masonry mortar shall be graded within the limits prescribed. The amount of deleterious substances in aggregate for masonry mortar, each determined on independent ...Read more

Steel - Basic oxygen steelmaking | Britannica

Steel - Steel - Basic oxygen steelmaking: More than half the world''s steel is produced in the basic oxygen process (BOP), which uses pure oxygen to convert a charge of liquid blast-furnace iron and scrap into steel. The basic oxygen furnace (BOF) is a refractory-lined, tiltable converter into which a vertically movable, water-cooled lance is inserted to blow oxygen through nozzles at ...Read more

Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

However, air-cooled slag does not have the hydraulic properties of water-cooled slag. Granulated blast furnace slag was first developed in Germany in 1853 (Malhotra 1996). Ground slag has been used as a cementitious material in concrete since the begin-ning of the 1900s (Abrams 1925). Ground granulated blast-Read more

Lexique des termes technique - MediaMef

(slag) wool laine (de laitier) (useful) height hauteur (utile) ... air blast; blast vent air blower ventilateur, soufflerie air bottle bouteille à air ... air cooled refroidi par l''air air cooler, air cooling plant installation de refroidissement d''air, réfrigération d''airRead more

Basic Oxygen Furnace Steelmaking - Steel Technology

Basic Oxygen Furnace (BOF) steel making or Basic Oxygen Furnace Steelmaking (BOS) or Linz-Donawitz-Verfahren steelmaking or the oxygen converter process is a method in which both molten pig iron and steel scrap are converted into steel with the oxidizing action of oxygen blown into the melt under a basic slag.Read more

Blast furnace - Wikipedia

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being "forced" or supplied above atmospheric pressure.. In a blast furnace, fuel (), ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with ...Read more

H2S removal performance of Ca3Al2O6-stabilized carbide ...

A Ca 3 Al 2 O 6-stabilized carbide slag from calcium looping cycles for CO 2 capture was proposed as a H 2 S sorbent in zero emission carbon process. The H 2 S removal performance of Ca 3 Al 2 O 6-stabilized carbide slag experienced different calcium looping cycles was investigated in a muti-fixed-bed reactor.The fabricated sorbent containing the mass ratio of CaO to Ca 3 Al 2 O 6 = 73:27 ...Read more

Iron and steel - Introduction to their science, properties ...

Dec 03, 2020· The coke "steals" the oxygen from the iron oxide (in a chemical process called reduction), leaving behind a relatively pure liquid iron, while the limestone helps to remove the other parts of the rocky ore (including clay, sand, and small stones), which form a waste slurry known as slag. The iron made in a blast furnace is an alloy containing ...Read more

ASTM C33 / C33M - 18 Standard Specification for Concrete ...

Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof. The sampling and test methods shall be done with grading and fineness modulus test, organic impurities test, effect of organic impurities on strength test, soundness test, clay ...Read more

How Cement Is Made

Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore. These ingredients, when heated at high temperatures form a rock-like substance that is ground …Read more

Aggregates for Concrete - Memphis

Crushed air-cooled blast-furnace slag is also used as fine or coarse aggregate. The aggregates are usually washed and graded at the pit or plant. Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected. Close to half of the coarse aggregates used inRead more

Metal Melting Furnace, Induction Metal Melting Machine for ...

SuperbMelt metal melting furnaces are widely used in various of metals smelting, such as gold, silver, copper, platinum etc, from 1kg to 250kg. Adopt IGBT induction technology and optional PLC control system to achieve speedy melting and accurate temperature control. RFQ NOW!Read more