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Home>Solutions > coke screen at blast furnace 150tph andesite crushing and reshaping production line. Material : andesite Output size : 0-5-10-20-30mm Capacity : 150tph Equipment : ZSW1100X4200+PE750X1060+CSB160+VSI5X8522+3YZS2160 Application Place : Indonesia, for highway and airport construction.
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The Coke Oven is a 3x3x3 structure built similarly to the Blast Furnace.It is used to produce Coal Coke (used as an alternative to Charcoal in the Blast Furnace) and Creosote Oil.The structure is made by placing Coke Oven Bricks in a 3x3x3 cube without the middle block. 104 Brick and 130 Sand are required to create one Coke Oven, a total of 26 Coke Oven Bricks.
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2016-10-19 the blast furnace. The strength and reactivity of coke at high temperature, measured by the Coke Strength after Reaction (CSR) and Coke Reactivity Index (CRI), have been studied. Mechanisms of disintegration were evaluated using basket samples charged into the LKAB Experimental Blast Furnace (EBF) prior to quenching and dissection.
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2020-8-14 Substitution of Coke and Energy Saving In Blast Furnaces. Part 5. Problems and Prospects of Low-Coke Blast-Furnace Technology I. G. Tovarovskiy [a,b],* [a]Iron and Steel Institute of National Academy of Science, Ukraine. [b]Academician Starodubov Sqv., Dnepropetrovsk, Ukraine. *Corresponding author. Received 20 July 2013; accepted 8 October ...
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2013-4-27 Use of Nut Coke in a Blast Furnace. Metallurgical coke also called blast furnace (BF) coke plays an important role in the stable operation of the BF. BF coke has typical size of 30 mm to 60 mm (some furnaces use BF coke of size 40 mm to 80 mm) and it constitutes a big component of the production cost of the hot metal (HM).
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2016-2-21 Changes in coke hardness affect the working of the blast furnace, for soft coke is an obstacle to proper furnace operation. Soft coke is due to a low hydrogen-oxygen ratio in the coal charged; increasing this ratio increases the hardness of the
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2013-12-2 In the last century after basic research of cooled blast furnaces in the USSR and Japan, scientists and process men have researched coke behavior and its role in the blast-furnace smelting. Coke for blast-furnace smelting should be characterized by a narrow range of granulometric composition, large average coarseness, high strength and wear-resistance as well as low reactivity.
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Nut coke is undersized coke of screen under coke silo of blast furnace, generally less than 25 mm. Except for using as fuel in sintering, nut coke can also be utilized in blast furnace by ore-coke mixed charging to improve the utilization of energy for ironmaking.
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2014-6-29 The effect of automatic process control on the blast furnace coke rate is in the range of 3 % to 5 %. Blast temperature is other parameter which influences the coke rate in a blast furnace. Blast furnace coke rate reduces by around 2 % with the blast temperature increasing by 100 deg C.
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CZ.8,9)The Chiba No.6 Blast Furnace is equipped with a large amount of mixture of small size coke and lump coke at a rate of 100 kg/tp or more and realizing high production and low reducing agent rate operation under low fired ore
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2019-12-25 Blast Furnace Practice. No one factor can be pointed to as the prime cause of reduced coke rates and increasing production. Constant changes in blast furnace technology have brought about varying degrees of improvements in this industry. Among the more prominent factors that have influenced the productive capacities and coke consumption per ...
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2016-8-29 The proximate analysis showed that the coke contains 0.38%, 13.45%, 2.72% and 0.14% of moisture, ash, volatile matter and sulphur respectively; while size distribution test gave micum 10 and micum 40 of 3.62% and 89.67% respectively. Therefore, the coke satisfies the blast furnace requirements for moisture, sulphur and micum strength.
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2015-10-6 Desirable values of shatter index for blast furnace coke are 80% on 2" screen, 90% on 1.5" screen and 97% on 0.5" screen. 13 3. This is a measure of both hardness and strength of the coke. 50 kg of coke of 50 mm size is rotated in the micum drum for 4
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degradation speculated that the degradation of coke in the blast furnace process is of great importance to industrial production. TEST METHOD AND CONTENT The test samples are all from the blast furnace sam-pling site, the sampling location is the coke belt of the blast furnace
Read More2014-3-15 The gas permeability, which is one of the most important requirements served by coke, is dependent largely on the size distribution of the coke at the various zones in the blast furnace. This papers deals with breakage of coke when it travels from wharf to blast furnace. In this study, six different coal blend samples in the range of 23.6–25.0% volatile matter and 11.7–14.8% ash were ...
Read More2018-11-15 Industrial Coke Blast furnace coke Foundry coke Coke for gas making Coke for ferro-alloys industry 3.2 Grades Designation BFC FC GC FAC Coke shall he of four grades, namely, Special Grade, Grade 1, Grade 2 and Grade 3, based on ash content ( see Table 1 ). 4 REQUIREMENTS 4.1 Coke shall conform to the requirements
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2015-9-10 Metallurgical coke is used in iron and steel industry processes (primarily in blast furnaces) to reduce iron ore to iron. Over 90 percent of the total coke production is dedicated to blast furnace operations. Foundry coke comprises most of the balance and is used by foundries in furnaces for melting metal and in the preparation of molds.
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2018-8-1 Due to the improvement of coke pore size, blast furnace melts (bosh slag or molten coke/coal ash) can migrate into the coke matrix through those connected open pores. Coke carrying slag in its inner pores may enter the iron bath of the BF hearth, which might affect coke dissolution into hot metal and degrade the refractory of the hearth bottom.
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2015-5-11 A universal coke quality, for stable operation compatible with long blast furnace life, is difficult to specify, since not only do different types of operation have different coke requirements but also physical properties vary according to the point of sampling between the coke ovens and the BF.
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2018-4-10 The same goes for alkali build-up in a blast furnace – a little is great for protecting the furnace refractory bricks from premature wear, however a large build-up can cause significant issues. There are a few main causes for scab build-up – excess sinter fines within the furnace (which is sinter smaller than -5mm) and a high lime chemistry ...
Read More2019-12-25 Blast Furnace Practice. No one factor can be pointed to as the prime cause of reduced coke rates and increasing production. Constant changes in blast furnace technology have brought about varying degrees of improvements in this industry. Among the more prominent factors that have influenced the productive capacities and coke consumption per ...
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The coke screens separate the coke according to particle size and whether they were cooled by wet or dry quenching. The blast furnace coke fraction above 25 mm produced for ISD DUNAFERR Zrt. is transferred to the coke bunkers of the blast furnace directly via conveyors.
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2019-11-1 The application of the three generations of composite frequency vibrating screen in the blast furnace tank is mainly used for the sorting of sinter, pellets, coke, nut coke, miscellaneous ore and limestone materials. It has the advantages of good sealing, easy
Read More2015-10-6 Desirable values of shatter index for blast furnace coke are 80% on 2" screen, 90% on 1.5" screen and 97% on 0.5" screen. 13 3. This is a measure of both hardness and strength of the coke. 50 kg of coke of 50 mm size is rotated in the micum drum for 4
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2016-8-29 The 300kg coke sample received from Ajaokuta Steel Plant was subjected to proximate analysis and pilot scale size distribution test. The proximate analysis showed that the coke contains 0.38%, 13.45%, 2.72% and 0.14% of moisture, ash, volatile matter and sulphur respectively; while size distribution test gave micum 10 and micum 40 of 3.62% and 89.67% respectively.
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2018-11-30 Coke is used in a blast furnace to produce iron from iron ore Acts as a • Fuel; provides heat • Chemical reducing agent; for smelting iron ore • Permeable support; supports the iron ore bearing burden Metallurgical Coke There is no other material available yet to replace the coke in a blast furnace
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2019-2-25 The dust emission volume from CDQ is less than 3 g/t-coke, besides, new type charging equipment, which is covered with the screen. And the inside dust is suctioned to the de-dusting facility. Therefore it achieves further reduction of dust emission from the CDQ. (3) Improvement of productivity at Blast Furnace
Read More2018-11-15 Industrial Coke Blast furnace coke Foundry coke Coke for gas making Coke for ferro-alloys industry 3.2 Grades Designation BFC FC GC FAC Coke shall he of four grades, namely, Special Grade, Grade 1, Grade 2 and Grade 3, based on ash content ( see Table 1 ). 4 REQUIREMENTS 4.1 Coke shall conform to the requirements
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2. Sinter and coke mix is then sent to the blast furnace. At the temperature of approx. 2,000°C, coke combustion enables melting and reduction of iron. 3. Thus obtained hot metal is then transported via so-called torpedo ladles from the blast furnace plant to the steel shop, where in basic oxygen converters steel is produced.
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2018-4-10 The same goes for alkali build-up in a blast furnace – a little is great for protecting the furnace refractory bricks from premature wear, however a large build-up can cause significant issues. There are a few main causes for scab build-up – excess sinter fines within the furnace (which is sinter smaller than -5mm) and a high lime chemistry ...
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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