Blast Furnace Sinter Lump Rate

  • Factors affecting Coke rate in a Blast Furnace IspatGuru

    Jun 29, 2014· High top pressure also reduces the coke rate in the blast furnace. With every increase of top pressure of the blast furnace by 0.1 kg/sq cm there is a reduction of around 0.1 % in the coke rate. Decreasing of fines content in the charge materials improves the coke rate of the blast furnace in the range of 0.4 % to 0.7 %.

  • Optimization of Lump Ore Proportions in Blast Furnace

    The sinter with iron ore fines mean particle size 2.63 mm showed physical and metallurgical properties within the acceptable range, which is required for blast furnace operation. Sinter with mean

  • Use of Iron Ore Pellets in Blast Furnace Burden IspatGuru

    Sinter, pellet and the calibrated lump ores are the three iron bearing metallics normally used in the blast furnace burden. Uses of all the three metallics in blast furnace burden can vary from zero to hundred percent with adjustment of the furnace parameters.

  • AIST 2020 AIST Industry Roundups

    Abstract: Roundup includes company and location, furnace, furnace characteristics (hearth diam., working vol, top pressure, charging methods, actual 2019 hours operated, actual 2019 production, actual 2019 specific production rate), burden (fluxed pellets, acid pellets, sinter, lump ore, reverts with Fe and Fe oxides, scrap, DRI, HBI, new Fe units), blast conditions (wind rate, enrichment

  • (PDF) INTERACTION BETWEEN LUMP ORE AND SINTER UNDER

    The primary-slags formation behaviors of sinter, lump ores and integrated burdens were studied to explore the high temperature interaction between sinter and lump ores in blast furnace.

  • PR-RU2019-5 2019 AIST Industry Roundups

    Abstract: Roundup Includes Company and location, Furnace, Furnace characteristics (Hearth diam. (m) Working vol. (m3) Top pressure (atm–g) Charging method Actual 2018 hours operated Actual 2018 production (tHM) Actual 2018 specific production rate (tHM/m3wv·24 hrs)), Burden (kg/tHM) (Fluxed pellets Acid pellets Sinter Lump ore Reverts with Fe and Fe oxides Scrap DRI, HBI, new Fe units

  • Lump Ore and Sinter Behaviour during Softening and Melting

    KEY WORDS: softening and melting tests; ferrous burden materials; lump ores; fluxed sinter; blast furnace. 1. Introduction The iron-bearing materials termed the ferrous burden and is generally composed of sinter, lump ores and pellets are charged into a blast furnace together but coke is charged separately. The alternate charging of

  • Increasing Lump Ores Proportion in Blast Furnace Based on

    ores and ratio between lump ores was optimized according to interaction. When the proportion of lump ores was up to 23% at the excellent collocation pattern and appropriate ratio, the burdens still conformed to the requirements of ironmaking. KEY WORDS: blast furnace; sinter; natural lump ores; pellets; interaction; reaction mechanism; burden

  • Cited by: 13
  • Why Chinese steelmakers are using less scrap in their

    Jul 10, 2019· Scrap can be charged at a maximum rate of ~10% of the Fe burden A BF requires ~960 kg of Fe burden to produce 1 tonne of hot metal (i.e. 960 kg/thm) and, due to the respective Fe contents of sinter, lump and pellet, this typically requires a total of ~1.6 t of iron ore burden to be charged.

  • What is the difference between pellets and sinter? Quora

    Jun 10, 2017· What is Pelletization? The process of Pelletization helps converting Iron Ore Fines into “Uniform Size Iron Ore Pellets” that can be fed in the blast furnaces or in the DRI kiln (DRI). Why Pelletization? Pelletization is the only answer to a major...

  • Which is better for the blast furnace process, sinter orOct 22, 2018What is the difference between powder, granules and pellets?Apr 09, 2018What's the difference among pellets, sinter and lumpsSep 30, 2016What is the difference between BF pellets and DR pelletsJul 28, 2015See more results
  • What is the difference between pellets and sinter? Quora

    Jun 11, 2017· What is Pelletization? The process of Pelletization helps converting Iron Ore Fines into “Uniform Size Iron Ore Pellets” that can be fed in the blast furnaces or in the DRI kiln (DRI). Why Pelletization? Pelletization is the only answer to a major...

  • Why Chinese steelmakers are using less scrap in their

    Jul 10, 2019· Scrap can be charged at a maximum rate of ~10% of the Fe burden A BF requires ~960 kg of Fe burden to produce 1 tonne of hot metal (i.e. 960 kg/thm) and, due to the respective Fe contents of sinter, lump and pellet, this typically requires a total

  • OPERATION AT HIGH PELLET RATIO AND WITHOUT

    When basic sinter is used to balance the high amount of acid pellet in the blast furnace burden slag volume is expected to be low. At low slag volume blast furnace gas throughput is easier and permeability will increase. Low reductant rate By avoiding limestone charging from the top of the blast furnace, energy consumption is

  • Innovative Uses of Hydrogen in Steelmaking

    BOF. Steel. Coke Oven. Coal. O2. Scrap/HBI. 1500 °C Liquid ‘Hot Metal’ Blast. Furnace. sinter. Lump Iron Ore Fine Iron Ore. Coke fuel reductant structure

  • “Natural Gas and the Impact on Pulverized Coal Injection

    on Pulverized Coal Injection in Blast Furnace Operations” Weighted (by Production Rate) Averages of Reductants by AISI BF’s sinter lump Mini- Corex IDI ITmk3 Blast Furnace large scale Fastmelt Finex Redsmelt Low CO2 HIsmelt Blast

  • Sinter plant Wikipedia

    Sinter plants agglomerate iron ore fines (dust) with other fine materials at high temperature, to create a product that can be used in a blast furnace.The final product, a sinter, is a small, irregular nodule of iron mixed with small amounts of other minerals. The process, called sintering, causes the constituent materials to fuse to make a single porous mass with little

  • Quality Improvement of Sintered Ore in Relation to Blast

    As a result, the blast furnace attained a productivity coefficient as high as 2.37 t/d/m3 and a high ore/coke rate of 4.87 with a PCR of 161 kg/t-pig11). 3.2 Improvement of blast furnace operation by decreasing Al2O3 content in sinter Further extending the line of the above tests, in 2001 another series of tests were conducted for decreasing

  • MINAS-RIO BLAST FURNACE PELLET FEED INTRODUCTION

    A “sweetener” in the sintering process-0.16-0.3-0.1 0.42 SIO2 CAO AL2O3 FE % Example: Sinter chemistry improvement with 8% MR BFPF Replacing a fine ore at Sinter Plant in China •Plays a significant role in increasing Fe and reducing SiO 2 and Al 2 O 3 of the sinter Lower BF slag volume and lower coke rate •Reducing sinter P and S

  • CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING

    super-fluxed sinter in order to incorporate the lime required for fluxing the acid constituents during the smelting inside a blast furnace. Other parameters which has influence on the coke rate and blast furnace productivity are (a) reduction properties (RDI/RI) of sinter, (b) Fe content in the sinter, and (c) fines in the sinter.

  • Blast Furnace Operation an overview ScienceDirect Topics

    In a blast furnace, iron ore reacts with hot coke to produce pig iron. The sintering or pelletising process prior to the blast furnace operation is added to allow blending of iron ores and also to control the size of the blast furnace feed. Sintering or pelletising improves the blast furnace operation and reduces energy consumption.

  • 9.1.3 Alumina in Blast Furnace/Corex Burden

    higher Al2O3 in Sinter, Pellet and lump Iron Ore results in decline in hot metal output,high slag rate, reduced output and increased energy consumption through coke rate. Based on the above study, correlation of Alumina in Sinter with Blast Furnace carbon rate was conducted. As per the study, every 1% increase of Alumina

  • A company wants to begin building a lump and sinter ores

    Like pellets, lump ores — rough chunks of iron ore — can be added directly into a blast furnace, while sinter fines — iron ground down into a powder — must first be sintered in combination

  • INTER-INFLUENCING FACTORS IN AFFECTING BF COKE RATE

    Key words: blast furnace, coke rate, regression equation, sinter, burden, statistics . Preamble An blast furnace is a typical case of multivariate system which is subjected to a large Content of -12 mm size fraction in iron ore lump (X9), % Reducibility of sinter (X3), %

  • 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

  • A company wants to begin building a lump and sinter ores

    Like pellets, lump ores — rough chunks of iron ore — can be added directly into a blast furnace, while sinter fines — iron ground down into a powder — must first be sintered in combination

  • percentage of iron coke sinter and pellet in blastfurnace

    Direct reduced iron (DRI) can be produced in pellet, lump, or briquette steel mill to produce lump ore (10–64 mm) for the blast furnace and sinter feed (0–10 . Sintering consists of igniting a mixture of iron-bearing line and coke .. Reduction is the percentage of oxygen present in the ore as iron oxide which has.

  • 9.1.3 Alumina in Blast Furnace/Corex Burden

    higher Al2O3 in Sinter, Pellet and lump Iron Ore results in decline in hot metal output,high slag rate, reduced output and increased energy consumption through coke rate. Based on the above study, correlation of Alumina in Sinter with Blast Furnace carbon rate was conducted. As per the study, every 1% increase of Alumina

  • Coke Rate an overview ScienceDirect Topics

    Jan 01, 2010· Technological challenges will be in decreasing the coke rate by increasing the coal injection rate, developing an economic process to produce partially reduced pellets or sinter, developing a comprehensive fundamentally based control model of the blast furnace, and developing the requisite sensors to allow optimized operation.

  • Why Use Coke for Blast Furnace Ironmaking not Use Coal

    Why Use Coke for Blast Furnace Ironmaking not Use Coal Directly? Coke is an important raw material in the smelting process of the blast furnace, accounting for about 45%. Others include pellets, sinter, lump ore, limestone and so on. Regarding coke, some people may have doubts. Coke and coal are all high-heating fuels.

  • Studying on Softening and Melting Behavior of Lump Ore in

    The beginning softening temperature declined and the ending softening temperature increased because of high porosity, which resulted in wide softening temperature interval. The charging ratio of lump ore A should be improved. Lump ore B should be distributed in the center of the blast furnace. Lump ores C and D should be used less.

  • The Carbon Cost of Slag Production in the Blast Furnace: A

    A high rate of pellets in the blast furnace generates a relatively low slag volume that is illustrated in the central graph by the zone “with” (beneficiation). (sinter, pellets, lump ore) used in the Blast Furnace. By crediting the Blast Furnace process for the production of slag using this value and for the Blast Furnace gas produced

  • Innovative Uses of Hydrogen in Steelmaking

    BOF. Steel. Coke Oven. Coal. O2. Scrap/HBI. 1500 °C Liquid ‘Hot Metal’ Blast. Furnace. sinter. Lump Iron Ore Fine Iron Ore. Coke fuel reductant structure

  • Why fines and lumps make a difference Adelaide Now

    The reason lump is preferred is that when it is fed into a blast furnace for steel-making, its particle size allows oxygen or air to circulate around the raw materials and melt them efficiently.

  • STRATEGIES FOR THE PRODUCTION OF LOW SILICON AND

    The various parameters associated with blast furnace over five years period are presented in Table 2. The hot blast tempetature is consistantly lower and needs improvement. Sinter rate and % sinter in burden have shown declining trend in the current year and needs to be raised to at least 1200 kg/THM and 75% respectively for achieving improved

  • About Us Bimelt Metallurgical Pig Iron Blast Furnace

    1)Box type sintering machine is usually applicable for the production of blast furnace under 60 m³ , the advantages are low investment, short construction period, the disadvantages are high air leakage rate, low sintering rate, the general sintering rate is 65~70%, poor production environment, high intensity of labor cost.

  • reducibility of iron ore and coke rate in blast furnace

    Quality Improvement of Sintered Ore in Relation to Blast Furnace High productivity operation of a blast furnace requires enhancing reducibility and improving reduction first dripping of iron ore from a graphite crucible) and the composi- . ficient as high as 2.37 t/d/m3 and a high ore/coke rate of 4.87 with.

  • Blast Furnaces Plant Liberty Ostrava

    Blast Furnaces Plant. lump ores and also secondary materials. Blast furnace coke is supplied from the neighboring Coke Oven Plant, part of blast furnace coke and liquid fuel is purchased from external sources. Besides production of hot metal and sinter which is used for internal consumption only we also sell blast furnace slag products

  • Recent Progress in Ironmaking Technology for 2 Mitigation

    ing agent rate in blast furnace in the future. The techni-cal content and expected results of that technology are also described. 2. coke breeze is used as a bonding agent for sinter, and lump coke is charged to the blast furnace. The coke oven gas (C gas) and blast furnace