Study on coke size degradation from coke plant wharf to blast furnaces stock house

Autor: H. P. Tiwari, R. Sharma, P. K. Banerjee, K. Dharmendra
Rok vydání: 2013
Předmět:
Zdroj: Coke and Chemistry. 56:412-418
ISSN: 1934-8398
1068-364X
DOI: 10.3103/s1068364x13110057
Popis: 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 studied in stamp charged coke making process (wet bulk density 1.15 t/m3). The coke samples were collected from battery no. 8 wharf, CK06 (conveyer belt) and auto sampler. All experiments were conducted on shatter machine and an attempt has been made to find out reasons for breakage of coke. Results indicate that the coke size degradation is function of transporting system and dropping height of coke from wharf to blast furnace. It was also found that in stamp charging condition, it is possible to improve yield of blast furnace grade coke even at higher composition balance index of coal blend (2.94–3.70).
Databáze: OpenAIRE
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