Smelting method of aluminum ingot and waste aluminum for aluminum melting furnace
A smelting method and technology of melting aluminum furnace, which are applied in the direction of furnace, furnace components, and process efficiency improvement, etc., to achieve the effects of increasing contact area, enhancing convective heat transfer, and reducing gas consumption
Inactive Publication Date: 2020-08-07
北京中冶设备研究设计总院有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for smelting aluminum ingots and waste aluminum for aluminum melting furnaces, which meets the requirements of rapid melting of aluminum ingots or waste aluminum, and at the same time solves the above-mentioned problems existing in manual smelting, so that the melting speed is fast and the smelting is uniform , fine air bubbles, less air consumption, less heat loss, and less labor intensity
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[0020] The technical solutions of the present invention will be further described below through the accompanying drawings and embodiments.
[0021] Embodiments The present invention provides a method for smelting aluminum ingots and scrap aluminum for aluminum melting furnaces, which includes the following steps:
[0022] S1. Aluminum melting stage: powered by the transmission device, the stirring head is driven to rotate, and the stirring head drives the vortex blades to rotate. The vortex blades give the aluminum liquid a horizontal force and a downward spin force, and the aluminum liquid is driven by the vortex blades. Make a circular motion and a downward spiral motion, the molten aluminum rushes to the furnace wall after reaching the bottom of the aluminum melting furnace, turns up along the furnace wall, forms a vortex and rolls up and down in the aluminum melting furnace, and drives the aluminum ingot or scrap aluminum to immerse in the molten aluminum middle;
[0023]...
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The invention discloses a smelting method of an aluminum ingot and waste aluminum for an aluminum melting furnace. The smelting method comprises the following steps of providing power by a transmission device to drive a stirring head to rotate, wherein the stirring head drives vortex blades to rotate, the vortex blades provide molten aluminum with a horizontal force and a backspin force, the molten aluminum is driven by the vortex blades to move circularly and backspin, and the molten aluminum surges up a furnace wall from the furnace bottom of the aluminum melting furnace and upturns along the furnace wall to form a vortex and roll up and down in the aluminum melting furnace so as to drive the aluminum ingot or the waste aluminum to be immersed into the molten aluminum; spraying smeltinggas and a refining agent along with gas while stirring the molten aluminum by the stirring head, wherein air bubbles and the refining agent are simultaneously fed to corners of the aluminum smelting furnace along with turning of the molten aluminum. The smelting method of the aluminum ingot and waste aluminum for the aluminum melting furnace meets the demand of smelting the aluminum ingot or the waste aluminum quickly and solves the problems in manual melting, is high in smelting speed, uniform to smelt, fine and dense in air bubble and small in gas consumption, and reduces the heat loss and the labor intensity.
Description
technical field [0001] The invention relates to the technical field of melting aluminum ingots and waste aluminum and smelting molten aluminum, in particular to a method for smelting aluminum ingots and waste aluminum used in an aluminum melting furnace. Background technique [0002] When the aluminum ingot or scrap aluminum is melted in the aluminum melting furnace, the fuel is ignited and blown into the furnace. There are two main heat transfer methods, one is the heat conduction of the molten aluminum to the aluminum ingot or scrap aluminum, and the other is the heat transfer of the fuel after combustion. Radiant heat, these two modes are slow to melt aluminum due to the existence of aluminum oxide protective film. The melting speed of aluminum ingots or scrap aluminum is the fastest after being immersed in molten aluminum, but at present, aluminum ingots or scrap aluminum are melted and then enter the molten aluminum. [0003] After the aluminum ingot or scrap aluminum ...
Claims
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IPC IPC(8): F27D27/00F27D3/16C22B21/00C22B21/06C22B9/10C22B9/05
CPCC22B9/05C22B9/103C22B21/0092C22B21/06C22B21/064F27D3/16F27D27/00F27D2003/166Y02P10/20
Inventor 孙彦强王长勇张磊张金利马超宇宋义昭薛曼龄
Owner 北京中冶设备研究设计总院有限公司