test procedure reducibility of sinter in india

Study on reducibility and porosity of metallurgical sinter

The procedure of porosity mea- ... After reducibility test. in CO environment at 950 ° C, high ratio of Fe in core of. samples, in some points reaching , was noted. The ele-mental analysis ...

Sintering studies of Iron Ore Fines of Hospet-Sandur ...

reducibility, c) Increased blast furnace productivity, d) Improved quality of hot metal and e) Reduction in Coke consumption rate in blast furnaces. II. STUDY AREA The Sandur schist belt has rich iron ore and manganese deposits in the Bellary district, Karnataka, India. The Schist belt trends North North West-South South East, with a length of about 53 kms spreading over an area of 930 square ...

reducibility-ore-sinter-pellets-testing-determining-RDI ...

The RF-33/TV/RDI System is the latest and most comprehensive version of the original RF-33 System for coke quality testing. The RF-33/TV/RDI has been designed primarily to test the properties of the iron ore charge – lump ores, pellets, and sinter.

IS 11292 (1985): Determination of relative reducibility of ...

4.2 The total mass of the relative reducibility test sample should be approximately 500 g. 4.3 The test sample for lump ore, sinter or pellets shall be in the range

Reduction of Solid Fuel Consumption in Sintering of Indian ...

The present investigation deals with the sinterability of Goa (India) iron ore having high Fe (65.2%) content. The sinter basicity (CaO/SiO2) and its MgO were varied in the 2.0 to 2.5 and 1.5 to 3 ...

Some experiences in the sintering of iron ores - [email protected]

quick test of sinter quality. In view of the very large number of methods used by others involving shatter, ... The test procedure was the same as that used for deter-mining the shatter strength of coke except for a change in the number of 6 ft drops from four to three. The results of the shatter test are expressed in terms of the percentage of +1'5 and the percentage of —0 .5in fractions ...

STUDY ON DISINTEGRATION OF METALLURGICAL SINTER

STUDY ON DISINTEGRATION OF METALLURGICAL SINTER SIMONA JURSOVA1, STANISLAV HONUS 2 1 ... of reduction disintegration of metallurgical sinter is a basic tool for optimal sinter production to ensure the stable blast furnace operation [Kardas 2012]. The article is aimed at contemplation of effect of basicity and grade of oxygenation (FeO in sample) on the sinter reduction …

Operation of an Experimental Furnace With Pellet And ...

Operation of an Experimental Furnace With Pellet And Sinter Burdens In 1965 and 1966 extensive tests with sinter and pellet burdens were carried out by AIRBO at the experi­ mental blast furnace of Ougree. The experimental program was designed to study: 1) furnace operation and results obtained with of a good self-fluxing sinter and with different types of pellet burdens; and 2) the best ...

Optimisation of MgO addition in low and high silica iron ...

AbstractThe quality of iron ore sinter mainly depends on sinter mineralogy, which in turn depends on the chemical composition of the sinter mix. The reduction properties of the mineral phases formed in the sinter influences the sinter reducibility. MgO has a varying effect on sinter reducibility at different silica contents. A recent trend in ...

IS 12394 (1988): Method for Weathering test on iron ore sinter

Test Sample - A batch of 500 kg of finished sinter either from the sintering plant or produced in the laboratory by pot/pan sintering should be taken for this purpose. The properties of sinter,

SINTER-TESTING BY AJAY KUMAR - Academia.edu - Share research

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Recycling of steel plant mill scale via iron ore sintering ...

The RDI of the iron ore sinter is determined by the ISO 4696-1 test procedure. Figure 12 shows the influence of mill scale addition on the RDI of the sinter. The sinter RDI (−3·15 mm) decreased with the increase in mill scale addition.

Improvement in Quality Parameters of Super-Fluxed Sinter ...

during reduction (RDI) and reducibility of sinter (RI) are of greater significance and have drawn considerable attention of the researchers since the furnace performance is largely decided by these indices [6-7]. In case of typical blast furnaces in India a definite relationship between the coke rate and RDI of sinter has been established [8]. Understandably, the fines generated inside the ...

FACTORS AFFECTING THE REDUCIBILITY OF SINTERED …

Factors Affecting the Reducibility of Sintered Chromite Pellets and Chromite Lumpy Ore 77 carbon addition on the porosity was 2.3 % points /4/. An addition of wood dust or dolomite increased the sof-

Full text of "IS 8167: Method for determination of ...

EXAMPKh 01- Rw)UniON TUBfc ( MTD 13 ) Kcprojjfdphy Unn, HIS, New Delhi, India IS 8167 : 1989 Indian Standard METHOD FOR DETERMINATION OF REDUCIBILITY INDEX OF IRON OXIDES, LUMP ORE, SINTER AND PELLETS ( First Revision ) 1 SCOPE 1.1 This standard prescribes the method for the determination of reducibility index of iron oxides; lamp ore, sinter and pellets under specific …

Characterisation of the Physical and Metallurgical ...

Reducibility was estimated following the procedure described by Chatterjee (1994) , using the Netzsch STA 409. The test employs isothermal reduction of the test portion, 500 g, on a fixed bed at 950°C using reducing gases consisting of 40% CO and 60% N 2 .

1. Introduction - Hindawi Publishing Corporation

Reducibility was estimated following the procedure described by Chatterjee (1994) [8], using the Netzsch STA 409. The test employs isothermal reduction of the test portion, 500 g, on a fixed bed at 950°C using reducing gases consisting of 40% CO and 60% N 2 .

IRON ORE SINTERING PART 2. QUALITY INDICES AND PRODUCTIVITY

Besides the increase in sinter porosity after being subjected to the reducibility test, there is also an increase in volume originated during the transformation of hexagonal hematite into cubic magnetite. The increase in volume that takes place due to this transformation is 25%.

sintering iron ore flowchart argentina - perkinspreschool.com

2018-06-12· Xinhai EPC provides services of sample test, mine design, equipment manufacture, etc. for clients, and solves the common problems in plant construction such as …

Reduction of Solid Fuel Consumption in Sintering of Indian ...

impart beneficial properties of strength and reducibility to fluxed sinter has been accepted [9]. A majority of installation in India, guided by the blast furnace slag requirement, operate around sinter basicity(CaO /SiO 2 ) 2 which is possibly not conducive with regards to

Development of an iron ore sinter process model to predict ...

The sinter pot test procedure is as follows. After the equipment is prepared, the raw material blend is manually After the equipment is prepared, the raw material blend is manually weighed and fed into the test pot via a primary (Eirich) mixer and a granulation drum.

Note 2.1 Raw Materials - jstage.jst.go.jp

ity on reducibility of sinter and found that SFCA stabilised the fine pores produced during the reduction process lead- ing to increased porosity and higher reducibility.

REDUCIBILITY PROPERTIES OF ERDEMIR SAMPLES A THESIS ...

The reducibility test method is one of the several procedures used to evaluate the behavior of natural and processed iron ores and agglomerates such as sinters and pellets under specific conditions.

Effect of Sinter Mix Composition and Additives on the ...

Effect of variations in sinter feed composition on sinter strength, bulk density, re­ ducibility, chemical composition, and microstructure were determined by sintering experi­ mental samples on a production sintering machine.

Control of the grain size distribution of T the raw ...

porosity of the sinter and its reducibility increased with a decrease in the size range of the coke breeze. The reduction disintegration index (RDI) decreased, the reducibility decreased marginally and the productivity increased when the size range of the flux was narrowed down from –3 mm to -3 +0.5 mm. Hosotani et al. reported that the simultaneous removal of the –1 mm limestone fraction ...

sintering iron ore flowchart argentina - perkinspreschool.com

2018-06-12· Xinhai EPC provides services of sample test, mine design, equipment manufacture, etc. for clients, and solves the common problems in plant construction such as budget over-run,disputes of the manufacturers...

Study on reducibility and porosity of metallurgical sinter ...

2.1. Reducibility determination. Tests of sinters reducibility dR/dt (%/min) were conducted according to ISO 4695:2007. The samples of size range 10.0–12.5 mm were oven-dried to constant mass at 105 °C±5 °C and before preparation of the test portions they were cooled to room temperature.