tata steel comparison of wet quenching and dry quenching process

A deep learning-based soft-sensing method for operation optimization of coke dry quenching process is put forward in this paper. By defining the economic efficiency, the data with high economic efficiency is used for modeling and optimizing the CDQ operating variable, i.e. supplementary air flow rate (F SA). The experimental results show that ...

CDQ process has many advantages in comparison with conventional wet quenching process. Main advantages are as follows. (1) Power generation utilizing sensible heat of hot coke The electric power can be generated by CDQ without consuming fossil fuels. Therefore, the CO 2 emission can be reduced by installing CDQ plant.

The two most commonly used technologies to quench coke are coke wet quenching (CWQ) and coke dry quenching (CDQ). In the CWQ process, hot coke is cooled by spraying water from the top of the coke quenching unit, where the steam from water evaporation is released to the environment.

Coke Dry Quenching (CDQ) technology helps not only in recovering almost 80% of the sensible heat of the red-hot coke post the coke-making process, but also contributes in improving coke quality, thereby enhancing BF productivity. The 'G' blast furnace at Tata Steel uses 100 percent dry quenched coke in the burden.

A dry granulation experiment was done by means of a rotary cup atomizer for blast furnace slag instead of the currently used water quenching process because it is unable to efficiently recover the ...

Greenery Development in Tata Steel Works Tata Steel's Parks and Garden is engaged in enhancing the greenery aspect of the Steel Works. In FY12, 8,096 nos. of trees were planted and about 8656.9 m2 provided with a grass cover. Reclamation of waste land in the Works area and greening of departments is being carried out regularly by Works Garden ...

Impact of transition from Dry to Wet Quenching on Coke Properties and Blast Furnace Performance Naina Rustagi1, Gautam Kumar Rout2, Ashutosh Bhushan 3, A S Reddy 4, Ashok Kumar5 1 Tata Steel Limited, Jamshedpur, Jharkhand, India, 831001, [email protected], Ph No: +91-7368806274 2 Tata Steel Limited, Jamshedpur, …

coke dry quenching process In CDQ process, red hot coke at approx. temperature of 1000 0 C ~1100 0 C is pushe d out from the oven and collected …

Coke making process involves quenching of red hot coke produced from coke oven. In …

Tata Steel's energy efficiency programmes focus on three principal areas: Energy conservation & recovery of waste heat and energy from the processes. Process efficiency enhancements through installation of energy efficient processes & technologies like TRT at G, H & I Blast Furnaces, Coal Dry Quenching (CDQ) at Coke Oven Battery No.5, 6 & 7 etc.

Abstract. A comparison of DQ-coke (dry quenched coke) with WQ-coke (wet quenched coke) for blast furnace operation was made. The results were as follows: a decrease in coke moisture caused a sharp rise in the top gas temperature; a decrease in coke moisture fluctuation was confirmed, and it is estimated that DQ-coke contributes to reducing furnace heat fluctuation; …

Quenching process stops the occurrence of undesired processes such as phase transformations. It completes this by minimizing the time frame during which these undesired reactions have a higher chance of occurring. A sudden drastic change in temperature toughens the outer layer of the steel bar improving its tensile strength and durability.

The analysis was extended to a coke wet quenching (CWQ) unit, a process still largely used across the world. The procedure is fully described. The comparison between the performances of the CDQ and CWQ processes supports that such analysis can be a useful and accessible tool in the decision making process.

Coke dry quenching (CDQ) technology, as an energy-saving and cleaner production technology, is officially encouraged to substitute the traditional coke wet quenching (CWQ) technology by the Chinese Ministry of Industry and Information Technology (Ministry of Industry and Information Technology of P.R. China, 2010).

QUENCHING CARS Paul Wurth offers two different types of wet quenching cars, namely for conventional top spray quenching and for coke stabilizing quenching (CSQ). Both machines can be self-propelled or locomotive driven. Being of robust design, the quenching cars offer the advantage of easily exchangeable wearing parts.

Wet quenching Dry quenching 150 15 150 15 10-15 8-10 2-3 70-75 CO2 CO H2 N2 Sample CDQ operating data˜ ˜ CDQ plants Comparison of CDQ coke quality Outline of technology Red-hot coke Processing capacity: 135 t/hr Temperature: Approx. 1,050oC Boiler inlet gas temperature: Approx. 980oC Energy recovery balance CDQ chambers Temperature of ...

Tata Steel R&D team has protected the technology through patent on the key formula and novelty of the process. The conventional method of treating cyanide in coke oven wastewater, one of the most toxic and potentially deadly pollutants, is called solid sludge separation technology which may lead towards cyanide toxicity by secondary means of ...

The dry quenching technology used for cooling coke is a new approach to conserving both heat energy and fresh water and thereby abate air and water pollution associated with the conventional wet ...

epovets steel works commissioned in 1972 are equip­ ped with a 5-chamber coke dry quenching plant without a stand-by wet quenching stimulates the in­ terest to the coke dry quenching technology. From these fi ndings, the USSR type C.D.Q. system was con­ sidered to be fully practically operational. On the

Tata Steel is the first manufacturer to produce FB780 Grade in India. HS1000 Commercial Vehicle manufacturers currently use HS800 grade produced by Tata Steel (only domestic supplier). Development of HS1000 will help to reduce vehicle weight and increase the load bearing capacity of the vehicles. Tata Steel is the first

Tata Steel R&D team has protected the technology through patent on the key formula and novelty of the process. The conventional method of treating cyanide in coke oven wastewater, one of the most toxic and potentially deadly pollutants, is called solid sludge separation technology which may lead towards cyanide toxicity by secondary means of toxic sludge …

Coke dry quenching (CDQ) is widely adopted for waste heat recovery in iron and steel plants. In this work, an economic benefit index was introduced to evaluate the performance of the CDQ system and stacked autoencoder (SAE) based deep neural networks are adopted for CDQ operation prediction.