recycling of blast furnace slag
Table of ContentsGranulating SlagSlag CementPortland Cement made from Slag and LimestoneIron Portland CementSpecial CementsSlag BricksDiscussion The successful establishment of iron blast-furnace plants at Newcastle and Lithgow naturally invites attention to the economic utilization of the various products and by-products arising out of the industry
Liquid slag produced in a blast furnace (BF)is at a temperature of around 1500?C and has a sensible heat of around 400Mcal/ton BF slag is rich in CaO, SiO2, Al2O3, and MgO which are similar to the components of Portland cement When this liquid BF slag is cooled fast enough then the solidified slag has a large percentage of glassy phase with high cementations activity and hence it can be used .
Sep 30, 2012· Iron-process recycling of iron slag Jacqueline Sabrina , Blast furnace extraction of iron recycling, , Iron slag recycling machine for sale,equipment for crushing: .
Blast furnace slag is recovered by melting separation from blast furnaces that produce molten pig iron It consists of non-ferrous components contained in the iron ore together with limestone as an auxiliary materials and ash from coke Approximately 290 kg of slag is generated for each ton of pig iron When it is ejected from a blast furnace .
2(a) Classification of the Chemical: Granulated Blast Furnace Slag is considered a hazardous material according to the criteria specified in REACH [REGULATION (EC) No 1907/2006] and CLP [REGULATION (EC) No 1272/2008] and OSHA 29 CFR 19101200 Hazard Communication Standard
Oct 27, 2011· This can sometimes be countered by recycling to some other branch of the process stream or by separating out certain fractions and recycling those An example of the latter is the magnetic extraction of metal globules from BOS slag and their addition to the blast furnace feed, although the amount of phosphorus in the adhering silicate slag has .
Blast furnace flue dust contains valuable amounts of carbon and iron The contents of harmful trap elements are low enough for recycling into the blast furnace Since 1993, SSAB Tunnplåt in Luleå has recycled the flue dust by charging it into the blast furnace in the form of a cold-bonded dust briquette
blast furnace Injection of chlorine-contained plastics such as PVC in blast furnaces generates hydrogen chloride due to the decomposition of the plastic with heat, same as with other thermal process The limestone used in the blast furnace to control the composition of the slag neutralizes the hydrogen chloride in the furnace and
Fly ash and Blast Furnace Slag for Cement Manufacturing GBFS is slag from the iron production in Basic Oxygen Furnac When this slag is actively cooled and ground, GBFS is produced, which can be utilised as a cement or concrete addition GBFS is said to increase durability of concrete due to an increased setting time, which reduces
Jan 25, 2018· For more than 100 years, Loesche has been designing the world’s most efficient and innovative grinding plants In the last two decades, Loesche has specialized in the recycling of industrial waste, predominantly in the beneficiation of blast furnace slag In April 2013 Loesche was awarded its first contract to build a grinding plant for blast furnace slag in Germany
May 15, 2014· The use of blast furnace slag in concrete production provides ecological advantages apart from the energy savings and contribution to the strength properties of concrete Even though the cement industry utilizes large quantities of blast furnace slag, there is a still great volume available for use as an alternative binder
Discussion of blast furnace slag recycling of a factory Abstract: A large amount of solid waste slag is generated in the production process in iron and steel enterpris As for enterprise which takes blast furnace as the process, blast furnace slag accounts for more than 50% Blast furnace slag disposal has experienced the following .
A wide variety of blast furnace slag options are available to you, such as free sampl There are 669 blast furnace slag suppliers, mainly located in Asia The top supplying countries or regions are China, India, and Russian Federation, which supply 85%, 8%, and 1% of blast furnace slag respectively
recycling of blast furnace slag - k-consultingcoza Concrete aggregate : Iron and steel slag products : , The two types of concrete aggregate that are manufactured using iron and steel slag as a raw material and which are covered by JIS standards are blast furnace slag aggregate and electric arc furnace oxidizing slag aggregate
Downloadable! To pursue more comfortable living human beings have overexploited resources, accumulated large amounts of waste and damaged the natural ecological environments, resulting in extreme climat Slag produced by blast furnaces in the steel industry may be recycled grinded to slag powder, a building material and cement substitute, which may reduce cement mining and create ,
RECYCLING OF STEELMAKING SLAG FROM ELECTRIC ARC FURNACE Ľ MIHOK1, KSEILEROVÁ , DBARICOVÁ Technical University, Faculty of Metallurgy, Letná 9, Košice, Slovakia SUMMARY The paper presents results of research of demetallized EAF slag recycling into charge of electric arc furnace Effects of recycling on steelmaking process parameters.
Steelmaking process are generally classified under two heads, namely, Blast Furnace-Basic Oxygen Furnace (BF-BOF) route and Electric Arc Furnace (EAF) and /or Induction Furnace (IF) route The BF-BOF route (primary sector) caters to around 45% of India’s steelmaking capacity, while the remaining
Blast furnace (BF) slag has been recycled in the construction industry mainly as cement and concrete However, in the past few years, recycling conditions have changed and other recycled materials have become dominant; thus, new applications for BF slag need to be considered In this study, we first
May 09, 2018· Ground Granulated Blast Furnace Slag (GGBS) The importance of Ground Granulated Blast Furnace Slag (GGBS) lies in its greener way to become a substitute in concrete material GGBS being a waste material, it needs proper method for disposal So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine ,
Slag cement is often referred to as “ground granulated blast-furnace slag” (GGBFS) As requested in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004)
Blast furnace slag materials are generally available from slag processors located near iron production centers Cements containing ground granulated blast furnace slag are available from many producers of Portland cement or directly from ground granulated blast furnace slag cement manufacturers
year, including six million tons of BOF/BOP slag The recycling of blast furnace (BF) slag has made significant progress in past years with much of the material being utilized as construction aggregate and in cementitious applications However, the recycling of BOF/BOP slag still faces many technical, economical, and environmental challeng
blast furnace slag recycling machine - houseliftingindia quartz crusher Blast Furnace Slag Recycling Machine performance of concrete made with manganese slag; , IRON AND STEEL SLAG Recycling Prior to processing, , Get Price Industrial Furnace equipment with Metal pressing for the .
Corrosivity: Blast furnace slag is mildly alkaline, with a pH in nonstagnant water mixtures in the range of 8 to 10 Despite the fact that blast furnace slag contains a small component of elemental sulfur (1 to 2 percent), the leachate is slightly alkaline and does not present a ,
Successful recycling of waste plastics is critical to save natural resources and reduce CO2 emissions Since 1996, waste plastics have been utilized in JFE Steel for reducing agent of iron ore by injection into blast fur-nace Waste plastics used in the blast furnace are coarse particles, because of the difficulty to crushed into fine particl
Blast Furnace Slag Blast furnace slag (BFS) is a product of iron production, which has been widely investigated and utilized, particularly as a supplementary cementitious material for cement or alkali-activated material, owing to its high hydraulic property or alkali activation reactivity
RECYCLING OF LD-SLAG The phosphorus content of the blast furnace usually ranges from 01 to 03 % depending upon the type of burden used, whereas the bulk of quality steels must have phosphorus level below 002% Table 8 shows the effect of recycling of dephosphorised slag on the phosphorus values of hot metal
The Exploitation of Blast furnace Slag as Sand Replacement in Concrete - written by Ahmed Serag Faried, Magdy A Abd- Elaziz, Taher A Tawfiq published on 2017/04/22 download full article with reference data and citations
Industrial uses of slag—The use and re-use of iron and steelmaking slags R DIPPENAAR Steel Institute, University of Wollongong, Northfields Avenue, NSW, Australia Traditionally, iron ore has been reduced with coke in a blast furnace and the hot-metal product of the blast furnace containing carbon, manganese, silicon, sulphur and phosphorous, was
Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properti
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