China WISCO Awards Contract to NSC for Coke Dry Quenching (CDQ) Plant

Nippon Steel Corporation (President MIMURA Akio， NSC) announced that it has been awarded a contract for Coke Dry Quenching (CDQ) plant by Wuhan Iron & Steel (Group) Corporation (WISCO)， one of China’s leading steel producers.

As of today， NSC has supplied 42 plants of CDQ， and improved and modified 6 plants of CDQ around the world. With the aforementioned performance record， NSC has already acquired the position of world’s top supplier of CDQ plants.

In 2003， NSC established a joint venture company in China called ”Beijing JC Energy & Environment Engineering Co.， Ltd. (BJCEEE)” with Beijing Shougang Design Institute， a competitive Chinese design institute. Now NSC promotes CDQ business in China through BJCEEE.

NSC has made a firm platform for the execution of CDQ projects in China by establishing BJCEEE， which lead WISCO to award this CDQ to NSC this time. Furthermore， NSC has supplied the first CDQ to WISCO successfully as well.

CDQ is a plant， which quenches red-hot coke by circulating non-active gas in its cooling chamber. Merits of the CDQ plant are mainly as follows:
1. Contribution to environmental protection
By virtue of sealed cooling camber， coke dust emission has been reduced to 1% or less as compared with conventional wet type quenching system.
2. Contribution to energy conservation
Sensible heat of red-hot coke can be recovered as steam by boiler equipment and the said steam can be utilized for power generation.
3. Favorable effects on blast furnaces
Coke quenched by CDQ contains much less moisture than that quenched by conventional wet type quenching system and contributes to energy conservation and stable operation of blast furnaces.

Characteristics of NSC’s CDQ are firstly， the overall plant is compact due to the improvements made in the charging and discharging facilities of the plant， and furthermore， the high heat exchange rate of the plant due to the special heat exchanging technology.

In the trend towards environmental protection in China， needs for CDQ and other equipments for energy conservation and environmental protection are dramatically increasing. NSC intends to further promote sales activities in this field including other relative technologies such as Coal Moisture Control (CMC) plants， various recycling plants， etc. to the Chinese market through BJCEEE， meeting the requirements of customers.

Outline of the CDQ plant to be supplied to WISCO this time
・Coke Cooling Capacity: 140t/h
・Output Steam: 83.7t/h
・Power Recovery: 4，665 Kwh (Turbine and Generator to be installed)
・Commencement of Operation: Scheduled to be November， 2005

Profile of Beijing JC Energy &Environment Engineering Co.， Ltd. (BJCEEE)
・Registered Capital: 7.5 Million RMB
・Shareholders: Nippon Steel Corporation 60%
　　　　　　　　Beijing Shougang Design Institute 40%
・Main Directors: Hong Hu (From Beijing Shougang Design Institute)
　　　　　　　　　Takeshi HIOKI (From Nippon Steel Corporation)
・Location of Main Office: Beijing， China
・Purpose: design， manufacturing and sales of CDQ equipment in China

For further information， please contact:

Marketing Department，Nippon Steel Engineering
(Phone: 03-3275-6114)