4　Process Design of Continuous Casting Workshop

4.1　General Requirement

4.1.1　Design of new，revamped and expanded steelmaking and continuous casting engineering shall adopt the basic process route of steelmaking furnace-ladle refining-sequence casting，some special steel grade or products can adopt the mould casting process.

4.1.2　Sequence casting workshop preferably adopts the hot delivery process for continuous casting strand.

4.1.3　The design of continuous casting workshop shall meet the following requirement:

1　The product mix shall include the production of continuous casting product in the workshop，steel grade to be produced and percentage，section area of casting product and percentage and cut-to-length.

2　The parameters of process equipment for the relevant operation sequence shall include the type and quantity of steelmaking furnace，average tapping capacity，maximum tapping capacity，smelting cycle as well as refining mode，quantity and treatment cycle.

4.1.4　When designing the sequence casting workshop，the product mix shall be determined according to the rolling mill composition and product requirement of the plant.The casting product specification shall be simplified under the preconditions of satisfaction of product requirement.

4.1.5　The improvement of continuous caster availability and production shall adopt the following measures and the following requirement shall be met as well:

1　The new continuous caster shall take the measures such as ladle turret and double tundish car to improve the number of heats for sequence casting.

2　The equipment of online main machine shall adopt the integral fast replacement and offline maintenance.

3　Additional ladle furnace or other refining unit with buffering function shall be built in case of necessary.

4　The operation technology for fast replacement of tundish shall be adopted.

5　The fast replacement technology for outboard submerged nozzle of tundish shall be adopted.

4.1.6　When craning the ladle as well as the tundish with liquid steel or full of molten slag，the foundry bridge type crane must be used.