Process and furnace for reheating slabs, billets, blooms and the like
AssigneeDidier Engineering GmbH
InventorHeinrich Patalon
Life of this patent
Estimating the term…
Abstract
A reheating furnace has a row of heating chambers and a mobile roof whose sections can be moved relative to each other so as to expose the tops of selected chambers for admission or evacuation of slabs. The slabs are lowered into and lifted out of selected heating chambers by an elevator which is mounted on tracks at a level above the motors for carriages which shift the roof sections relative to the chambers. Each chamber can be heated by a set of burners independently of the other chambers. The elevator stacks the slabs in such a way that one marginal portion of each slab is exposed for pronounced heating by combustion products and the other marginal portion is nested between and is heated by the neighboring slabs.
Claims19
A process for operating a furnace, particularly a reheating furnace for slabs, billets, blooms and analogous metallic objects, comprising the steps of establishing a plurality of discrete heating chambers;
- selecting and maintaining the temperature in each chamber independently of the other chamber or chambers;
- delivering objects into selected chambers from above, including stacking the objects in at least one of the selected chambers so that each upper object partly overlies the object therebelow;
- covering the selected chambers during heating of the objects therein;
- uncovering the selected chambers;
- and lifting the heated objects out of the respective chambers.
A furnace, particularly a reheating furnace for slabs, billets, blooms and analogous metallic objects, comprising a casing defining a plurality of discrete open-top heating chambers, said chambers including neighboring first and second chambers and said casing including a first sidewall between said first and second chambers and an additional wall for each of said first and second chambers, said additional walls facing the opposite sides of said first sidewall and said first sidewall having at least one passage communicatively connecting said first and second chambers;
- means for individually maintaining each of said chambers at a selected temperature, including burners in said casing, said burners including burners in said additional walls;
- a mobile roof disposed above and movable into sealing engagement with said casing as well as to positions in which the tops of said chambers are exposed;
- and elevator means for delivering objects from above into selected chambers and for lifting heated objects out of the respective chambers.
A furnace, particularly a reheating furnace for slabs, billets, blooms and analogous metallic objects, comprising a casing defining a plurality of discrete open-top heating chambers;
- means for individually maintaining each of said chambers at a selected tenperature, including burners in said casing;
- a mobile roof disposed above and movable into sealing engagement with said casing as well as to positions in which the tops of said chambers are exposed;
- mats of fibrous insulating material between said roof and said casing;
- and elevator means for delivering objects from above into selected chambers and for lifting heated objects out of the respective chambers.
A furnace, particularly a reheating furnace for slabs, billets, blooms and analogous metallic objects, comprising a casing defining a plurality of discrete open-top heating chambers at least some of which are arranged to receive stacks of superimposed objects so that the stacked objects exchange heat;
- means for individually maintaining each of said chambers at a selected temperature, including burners in said casing;
- a mobile roof disposed above and movable into sealing engagement with said casing during heating of objects in said chambers as well as to positions in which the tops of said chambers are exposed;
- and elevator means for delivering objects from above into selected chambers and for lifting heated objects out of the respective chambers.
Dependencies are inferred from the claim text.