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US 10,989,475 B2Granted
Systems and methods to preheat ferromagnetic scrap
AssigneesValery Shver, Jaroslav Brhel
InventorsValery Shver, Jaroslav Brhel
Life of this patent
Estimating the term…
Abstract
An example embodiment of the present invention provides a system for preheating ferromagnetic scrap. The system can include a preheating unit that is configured to hold ferromagnetic scrap and to receive hot gases. The preheating unit may include a removable cover that can include an electrical magnet system. The electrical magnet system can comprise an electrical magnet, a lifting device configured to lower and raise the electrical magnet, a power system configured to provide electrical power to the electrical magnet, and an electrical control system configured to operate the magnet. A hot gases cleaning system may be fluidly connected to the preheating unit.
Claims24
A system for preheating ferromagnetic scrap comprising:
- a preheating unit configured to hold ferromagnetic scrap and to receive hot gases, the preheating unit comprising:
- a scrap conveyor configured to transport ferromagnetic scrap;
- and
- a magnet conveyor including a plurality of electrical magnets, each of the plurality of electrical magnets being configured to hold a respective raised quantity of ferromagnetic scrap at a height above the ferromagnetic scrap on the scrap conveyor such that at least some of the hot gases can pass below the respective raised quantity of ferromagnetic scrap,
- wherein the magnet conveyor is configured to move along a revolving path that includes:
- a scrap-transport section that is collinearly aligned with the scrap conveyer, wherein the magnet conveyor is configured to move through the scrap-transport section of the revolving path in a shared direction with the scrap conveyor;
- a diverging section in which the magnet conveyor is configured to move in a direction that diverges from the shared direction;
- a converging section in which the magnet conveyor is configured to move in a direction that converges with the shared direction;
- and
- a return section positioned between the diverging section and the converging section;
- and
- an electrical control system configured to operate the scrap conveyor and the magnet conveyor.
9 more elements
A system for preheating ferromagnetic scrap comprising:
- a preheating unit configured to hold ferromagnetic scrap and to receive hot gases;
- a first electrical magnet configured to hold a first quantity of ferromagnetic scrap in the preheating unit such that at least some of the hot gases can pass below the first quantity of ferromagnetic scrap;
- a second electrical magnet configured to hold a second quantity of ferromagnetic scrap in the preheating unit such that at least some of the hot gases can pass below the second quantity of ferromagnetic scrap;
- an electrical control system configured to operate the first electrical magnet to hold the first quantity of ferromagnetic scrap and the second electrical magnet to hold the second quantity of ferromagnetic scrap;
- a first lifting device configured to lower and raise the first electrical magnet and a second lifting device configured to lower and raise the second electrical magnet;
- and
- a first guide configured to direct the first electrical magnet in a predetermined path as the first electrical magnet is moved by the first lifting device and a second guide configured to direct the second electrical magnet in a predetermined path as the second electrical magnet is moved by the second lifting device.
4 more elements
A method for preheating ferromagnetic scrap comprising:
- lifting a raised portion of ferromagnetic scrap with an electrical magnet, such that a gap is created between the raised portion of ferromagnetic scrap and a remaining portion of ferromagnetic scrap, wherein the raised portion of ferromagnetic scrap and the remaining portion of ferromagnetic scrap combine to form a total amount of ferromagnetic scrap, the total amount of ferromagnetic scrap being approximately 100% of any ferromagnetic scrap located below the electrical magnet;
- transporting the raised portion of ferromagnetic scrap and the remaining portion of ferromagnetic scrap along a preheating path within a preheating tunnel such that the gap is maintained as the raised portion of ferromagnetic scrap and the remaining portion of ferromagnetic scrap are moved along the preheating path;
- directing hot gases through the preheating tunnel, such that the hot gases pass through the gap between the raised and remaining portions of ferromagnetic scrap;
- diverging the electrical magnet from the preheating path to a return path that is linearly offset from the preheating path and is in the opposite direction from preheating path;
- and
- diverging the electrical magnet from the return path to re-converge with the preheating path.
3 more elements
Dependencies are inferred from the claim text.