It has installed stamp charging technology in its port-based plants located in Kutch & Porbandar. From there they intend to do coastal movement of coke to Haldia, Vizag, Chennai, Goa port and have ...
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The use of stamp-charging technology contributes to the improvement of the coke quality or enables the production of coke of a predetermined quality from blends containing cheaper semi-soft coals. Coke is an integral component of the blast furnace charge; therefore, it plays an important role in the integrated steelmaking process.
out in this work. The utilization of highly reactive coke in steel making is an alternative process to reduce energy consumption and CO 2 emissions in a blast furnace. A scale-up approach is carried out by first optimization of parameters in laboratory scale and then implementing those results in the 7 Kg stamp charge coke oven.
3. STAMP CHARGING COKE OVEN 5 m stamp coke oven （JND55 series） Chamber height: 5.5m or 5m coke output per oven: 10,000t/a Coking plant scale：1,1~1.3 million t/a 6.25 m stamp coke
3 STAMP CHARGING TECHNOLOGY . This technology was born in Silesia and Poland more than 100 years ago and then developed also in the South-West of Germany, in the Saar area, where local mines of low quality coal was present. The most favorite reason to adopt stamp charging coke oven battery is …
charge coal from above and a stamp charge type configured to charge coal from a side of an oven and put the coal into the oven while pressing the coal. In a stamp charge oven, coal is compacted into a rectangular parallelepiped cake in an oven chamber by a stamping machine. As described above, to make coke, high-grade coal having a high caking ...
Coke made by the stamp charging process was of a denser and larger variety than that made in other ways, making its use ideal for ironmaking in foundries where strength is an important factor.
We help steel companies make the best out of coal and coke. With more than 35 years of international experience in coke making, we know the tough challenges steel companies are facing today. If you want to: learn how to easily meet today's environmental standards (while still maximising profits) know how to cut the costs of coke up to 35 %.
Stamp Charfing Technology Flexible Options Rudolf. My Consulting Company proposes very flexible and customized options for implementing stamp charging technology: Installation of stamp charging facilities for existing operating coke batteries (new coal hopper with conveyor supply of coal blend, stationary stamping stations and charging cars or stamping-charging-pushing machines SCPM are ...
The density of the coal charge plays an important role in the coke quality. The increase of the bulk density usually improves the coke strength due to increased coal particle contact and increased coke density. There are a few possibilities to increase the coal charge bulk density: adjusting the grain size distribution or moisture content (drying), oil addition and mechanical treatment (e.g ...
Coke quality significantly improves as a result of increase in bulk density of charge. Stamp Charging of Coal : The technology basically involves formation of a stable coal cake with finely crushed coal (88-90% - 3mm) by mechanically stamping outside the oven and …
Coke made by the stamp charging process was of a denser and larger variety than that made in other ways, making its use ideal for ironmaking in foundries where strength is an important factor. Another advantage noted was that a much larger range of coals could be coked with the limits of (high) volatility and coking properties much increased.(1)
In stamp-charged coke making, the coal charge is compacted to one large cake before entering the coke oven. A coal cake density of approximately 80% of the coal solid density is needed to produce a high-quality coke. Also, sufficient mechanical strength is required when transferring the cake from the stamping machine to the oven.
Coal Stamp Charging BatteryCosts & Benefits. This technology conserves coking coal due to use of higher proportion of high volatile & poor coal in the blend. It also increases the yield in the coke plant and may help improve the performance in heat recovery systems. Emissions reduction is unlikely. Investment and operational costs are reported ...
Stamp-charging coke making technology can bend some long flame coal, which can reduce production cost and expand the coking coal resources. The long flame coal of different mass fraction is added ...
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The optimum stability of coal cake is essential for producing good quality of coke in stamp charged coke making process. A suitable binder named as 'X7' was identified to improve the stability of coal cake, oven throughput, coke quality and reduce specific energy consumption for stamp charged coke making process. Laboratory results show that addition of 'X7' in coal blend up to 0.10 ...
The coke-making industry is dealt with in terms of coke as the primary product. Coke is fuel and a reductant in the blast furnace. However, another large industry, the coal tar industry, exists to deal with the secondary products or by-products produced during coal pyrolysis. In this process, coal tar is produced in 3–5% yield.
How does stamp charging work? Mode of operation: The charging car is traveling under the coal tower. The plate-/vibration feeders are staring and spraying a layer of coal into the stamping box. Hereby the coal will fall till the bottom of the box, means to the top of the charging plate. The power system of the stamping units can be switched on ...
Turning coke oven gas into baking powder: ammonium bicarbonate; Mechanical compaction of coking coal for carbonization in stamp-charging coke oven batteries; Waste management in coking plant Thresholds and barriers of waste recovery in coking plant technological process; Use of petroleum coke as an additive in metallurgical coke making
Coke made by the stamp charging process was of a denser and larger variety than that made in other ways, making its use ideal for ironmaking in foundries where strength is an important factor. Another advantage noted was that a much larger range of coals could be coked with the limits of (high) volatility and coking properties much increased [1].
The present study revealed that the CSR of coke produced by stamped charged coke making process is mainly influenced by the properties of coal like petrography, coal ash chemistry and rheology. In stamp charging condition, to produce coke with high CSR value, it is necessary to select coals with appropriate ash chemistry, petrographic ...
Worldwide, the cokemaking process has remained more or less unchanged for over 100 years, and metallurgical coke is produced in recovery and nonrecovery coke ovens by using top gravity and stamp charging and a wide range of coal bases.As BFs have been operated with coke, it has been urged globally to reduce the coke cost more by maximization of cheaper/inferior coal in the blend.
Stamp charge coke-making is commonly used in density variation programs and blending programs where higher densities of coal are required. This type of coke-making is applicable to the Indian coking coal market, where stamp charging in industrial coke ovens is wide-spread. The stamp charging densities available range from 815 kg/m3
of top and stamp charging type, coal & coke han-dling, coke quenching plants, coke oven gas treat-ment, by-product & auxiliary plants. A full range of coke oven machines, based on Schalke as well as Koch technology, makes Paul Wurth a global player for cokemaking projects - from preparing the coal to
The decreasing supply and increasing price of prime coking coals forces coke manufacturers to look for new solutions to enhance the quality and economics of the coke-making process [1,2,3,4].Coke is an essential raw material in the iron- and steel-making sectors [], where in the blast furnace process it plays the role of a fuel, a reductant agent and a permeable grid supporting a column of ...
Another important aspect of this journey of excellence in stamp charge coke making is a culture of development and improvement adopted by Tata Steel. Work on understanding coal behavior in stamp charge condition, its impact on oven health and proper blending to achieve the best quality yielded immense benefit to blast furnaces.
Stamp-charging technology allows the use of high-volatile, low-caking, and inexpensive charge materials to produce blast furnace coke with good mechanical properties at reasonable prices. Based on the factors of raw materials and technologies, this paper illustrates strategies to optimize blends for coke-making by the stamp-charging process.
Request PDF | Optimization of coal cake stability for stamp charging coke making operation at Tata Steel | Revisit of the existing knowledge on coal cake stability was felt necessary when new ...
