Invention Grant
- Patent Title: Energy recovery in a steel mill
- Patent Title (中): 钢厂能源回收
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Application No.: US13203730Application Date: 2010-03-02
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Publication No.: US08544526B2Publication Date: 2013-10-01
- Inventor: Peter Sudau , Juergen Seidel , Horst Gaertner , Axel Stavenow
- Applicant: Peter Sudau , Juergen Seidel , Horst Gaertner , Axel Stavenow
- Applicant Address: DE Duesseldorf
- Assignee: SMS Siemag AG
- Current Assignee: SMS Siemag AG
- Current Assignee Address: DE Duesseldorf
- Agent Andrew Wilford
- Priority: DE102009018899 20000428; DE102009011073 20090302; DE102009016384 20090407; DE102009018734 20090427; DE102009031557 20090702
- International Application: PCT/EP2010/001263 WO 20100302
- International Announcement: WO2010/099920 WO 20100910
- Main IPC: B22D11/22
- IPC: B22D11/22

Abstract:
Energy is recovered from steel products produced in a steel mill where the products are transported into a storage area by first extracting heat from the steel products prior to or after transport into the storage area by heat exchangers for a predetermined period in which residual heat of the steel products is transferred by the heat exchangers into a heat-transfer medium to heat same. The heated transfer medium is then transferred via heat-transfer transport lines for power generation or for direct use of the process heat in other heat consumers. This transport of the heat-transfer medium from the heat exchangers to the power-generating plant in the heat-transfer transport lines is carried out only at pump feed pressure or using as a heat-transfer medium liquid mineral or synthetic thermal oil or a salt melt so as not to build up a steam pressure above 2 bar.
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