4.4　Process Layout

4.4.1　The process layout of a hot metal pretreatment station shall ensure smooth ladle turnover without any interference and minimize the ladle transfer distance.

4.4.2　For the pretreatment with torpedo ladle，separate hot metal pretreatment station，skimmer shop and slag yard shall be provided.

4.4.3　For the pretreatment with hot metal ladle，the hot metal pretreatment station should be located in the material charging bay of the main shop building，or may be located in the accessory bay adjacent to the material charging bay.

4.4.4　For the process layout of the hot metal pretreatment station，the following operation modes may be selected:

1　Injection（or stirring）treatment and skimming are at the same position.

2　Injection（or stirring）treatment and skimming are at different positions，including a treatment position and 2 skimming positions.2 ladle cars and 2 skimmers are used for operation alternately.

4.4.5　The hot metal pretreatment unit should be in elevated arrangement and the uniformly distributed load on the main operation platform should be 10kN/m2.