Claims
- 1. In an installation for heating and supplying air to a blast furnace comprising: air heater; a blast-furnace hot-blast main comprising a trunk section; connecting pipes rigidly and airtightly connecting the air heaters to the trunk section; and a supporting device for the hot-blast main; the improvement wherein the supporting device comprises; a carrying beam; self-contained supports mounting the carrying beam; pre-compressed springs installed on the carrying beam; hangers of the hot-blast main secured on the carrying beam through the springs; the pre-compression force in the springs being substantially equal to the mass of the section of the hot-blast main supported by the hangers and the magnitude of the pre-compressed setting of the springs being several times larger than the maximum possible displacement of the connecting pipes when the air heaters are vertically displaced during their operation.
- 2. The installation as claimed in claim 1, wherein each of the pre-compressed springs comprises a set of disk springs; and further comprising: pipes mounted on an upper flange of the carrying beam, each of the pipes enclosing one set of the disk springs; and a metal plate mounted on top on each of the pipes; each set of disk springs having a central through hole so that one end of each of the hangers can be inserted through the central hole and secured on the plate.
- 3. The installation as claimed in claim 1, wherein each of the hangers comprises flexible metal rods and a metal sheet.
Parent Case Info
This is a continuation of application Ser. No. 564,049 filed Apr. 1, 1975, now abandoned.
US Referenced Citations (4)
Continuations (1)
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Number |
Date |
Country |
Parent |
564049 |
Apr 1975 |
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