Pdf optimum process conditions for the production of pig. Materials balance in iron making introduction illustration key words. Corex process with other iron making processes like. The corex process combines coking plant, sinter plant and blast furnace into a single iron making. Melter gasifier is the key reactor of corex process. The format is widely used because of its broad compatibility and flexible feature set. The hisarna ironmaking process is a direct reduced iron process for iron making in which iron ore is processed almost directly into liquid iron or hot metal. The casting process involves the following general steps. Corex process for generation of heat and reduction gases. Directly reduced iron directly reduced iron is a product of. The corex process combines coking plant, sinter plant and blast furnace into a.
Now you can edit the document then save as a word or wordperfect file, or export to pdf. Interaction reaction between the degradation of coke and the reduction of iron ore in oxygen blast furnace under hydrogenenriched. Unlike the blast furnace the corex process does not use a hot blast of nitrogen, thereby greatly reducing nox gas emissions, but instead uses oxygen. Before undertaking a detailed study of the processes involved in steelmaking. Smelting reduction process is that process which is based on smelting reduction technology and hence in this process the production of hot metal.
The latter process is based on atomization of a stream of liquid. Operating line prediction of corex iron making process using rist diagram c srishilan,1 anand vivek2 and ajay kumar shukla1 1 department of metallurgical and materials engineering, indian institute of technology madras, chennai, 600036 india. Hot briquetted iron is direct reduced iron discharged from the shaft furnace at. A special manufacturing process is making the production of iron much more environmentally friendly.
Opening and editing pdfs in wordperfect corel discovery. Static model study on the characteristics of coke oven gas dome. Minnitt synopsis direct reduced iron dri, produced by the reaction between iron. The increasing role of direct reduced iron in global. Iron making process, full notes, pdf, ebooks, results 1 to 1 of 1. The former process is based on reduction of iron ore, yielding a highly porous spongeiron which subsequently is comminuted to powder.
In the corex process, all metallurgical work is carried out in two separate process reactors the reduction shaft and the melter gasifier. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. By fulfilling more stringent ecological regulations by law, utilization of lowcost, highly available low. Iron making is the process of reduction of iron ore using the relevant reducing. Ironmaking, reduction of iron oxide, material balance introduction the blast furnace is essentially a continuous counter.
Use file open pdf to import a pdf if the pdf is passwordprotected, you will need to know the password to import the pdf make selections on textoutofimages and number of pages. Definitions of the process technologies considered herein can be. The process produces highgrade iron nuggets with better meltability than pig iron during the steel making stage. In the corex process, all metallurgical work is carried. The first metallurgical step is to reduce iron ore to metallic iron, a process which is mostly carried out in a blast furnace, using coke as both a fuel and reducing agent. Corex process distinguishes itself from the blast furnace route by i direct use of noncoking coal as reducing agent and energy source, ii iron ore can be directly and feasibly charged to the process in form of lump ore, and pellets, and iii use of pure oxygen instead of nitrogen rich hot blast. The proportions of material used vary according to the process and the type of steel required. This section basically explains the system function in detail. Corex process emits at least 15 % less co2 as compared to bf route for hot metal production. The air emissions are also lower than the conventional bf units. Hi thanks to cindy and rohn and hans and others who have helped me with this problem thus far.
It eliminates sinterpellets plant and coke oven battery. The emission levels with the corex process are much lower than the bf route of production which consists of blast furnace, sinter plant and the coke ovens. Experience of corex at jsw suggest that still 15% coke is required in the process to control vm of the input reductant. Our steel is at the heart of the modern world, forming the fabric of life tegrating processing steps and bring ing them under computer. If you continue browsing the site, you agree to the use of cookies on this website. The outstanding feature of the corex process is that it uses conventional coal instead of coking coal, the customary ingredient. Iscors corex plant has a yearly capacity of 300 000 t. I am trying to insert a pdf file at the end of two documents i have merged.
A majority of foundries specialize in a particular metal and have furnaces dedicated to these metals. Updated technologies for the reduction of co 2 emissions from the ironore sintering process 4. The corex process is a twostage smelting reduction process, in which hot metal can be produced from noncoking coal and iron ores. Corex process in iron making slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Pdf corex process in ironmaking elvis marca catachura. The improvement of the blastfurnace process by the use of oxygen instead of air. Until now, the corex process was the most fully developed, which uses lump ore, pellets or sinter, as well as lumpy coal as raw materials, producing 300,000 tons of pig iron annually without any problems. How to flip a document in word to print on iron on transfer.
Operating line prediction of corex ironmaking process. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The corex process is being projected as an alternative for blast furnace iron making. Is there some way to convert word to pdf via background process execution. I was told to go to the insert tab and select text groupobject ddl to select the object dialogue box which will allow me to browse. Pdf the corex process is being projected as an alternative for blast furnace iron making. Pdf minimization of exergy losses in the corex process. The coal consumption of the corex process is large with a net fuel. Making iron conversion to steethe basic raw material for steel manufacture is either the hot metal from the blast furnace, steel scrap or a mixture of both. The first metallurgical step is to reduce iron ore to metallic iron, a process which is mostly carried out in a blast furnace. Iron making process free download as powerpoint presentation.
Siemens is currently building the worlds largest corexbased plant in china. Hot direct reduced iron charged directly into a melter without cooling. I have it like a regular word document, but i need to flip it to print on my iron on paper. The hisarna process is a process for iron making in which iron ore is processed almost directly into liquid iron or hot metal. If youre dissatisfied with your purchase incorrect booknot as describeddamaged or if the order hasnt arrived, youre eligible for a refund within 30 days of the estimated delivery date. There are ferrous iron or steel and nonferrous aluminum, brass, bronze, copper, etc.
Optimum process conditions for the production of pig iron by corex process conference paper pdf available june 2012 with 444 reads how we measure reads. An introduction to modern iron making by tupkary, r. Arcelormittal is the worlds leading steel and mining company. I am trying so hard to make my own stick family but i am having a little trouble. Material mixture of ore fines, coal and fluxes of 10 mm is fed onto the liquid metal bath to form heaps floating on the metal bath. The corex technology is a cost efficient, environmentally friendly and industrially accomplished alternative to the blast furnace route for the production of hot metal from iron ore and coal. Iron ore, as mined, is a combination of iron with oxygen and various other unwanted substances, generally known as gangue. It does not generate fines and is easy to transport.
To effectively reduce co 2 emission from sintering process of iron ores, it is necessary to overcome such negative effects led by the uses of such alternative agglomeration agents. Oxygencoal inbath smelting reductiona future process for. Pig iron is divided into steelmaking pig iron, which is intended for further processing to steel by various refining processes, and foundry pig iron, from which cast iron is produced by remelting. The corex process is a smelting reduction process created by siemens vai as a more environmentally friendly alternative to the blast furnace. Reduction process direct reduced iron drihot briquetted iron hbieaf routes to the new innovative alternative iron sources aisssteelmaking routes such as the fastmet process, the itmk3 process, fasteel, fastox, corex and hismelt. In this process, coal is charged into the melter gasifier reactor and is combusted to. This authoritative account covers the entire spectrum from iron ore to finished steel. Schematic diagram of a corex plant reduction shaft. Pdf files are great for exchanging formatted files across platforms and between folks who dont use the same software, but sometimes we need to take text or images out of a pdf file and use them in web pages, word processing documents, powerpoint presentations, or in desktop publishing software. It begins by tracing the history of iron and steel production, right from the earlier days to todays world of oxygen steelmaking, electric steelmaking, secondary steelmaking and continuous casting. Iron making process, full notes, pdf, ebooks, popular topic for study. Use of pellet atleast partially is a must for corex process.
From the above table, it will be observed that in 200708, sail and tisco contributed 35. Corex enables the costefficient and environmentally friendly production of hot metal from iron ore and coal. Smelting is a process of applying heat to ore in order to extract a base metal. We guarantee the condition of every book as its described on the abebooks web sites. The iron nuggets are slag free and are also free from re oxidation. The process combines two process units, the cyclone converter furnace ccf for ore melting and prereduction and a smelting reduction vessel srv where the final reduction stage to liquid iron takes place. Efficient and environmentally friendly smelting reduction a vai ironmaking technology.