A method for preparing red mud pellets for reducing the cooling of molten iron, porous red mud pellets, and a method for using red mud pellets
By preparing porous red mud pellets, the unstable nature and low resource utilization rate of hot metal heat preservation covering agents are solved by utilizing the porous structure and physicochemical properties of red mud. This achieves reduced hot metal temperature drop, improved resource utilization and environmental friendliness, and the slag composition can be adjusted after the pellets are melted.
Patent Information
- Application Number
- CN202610571520.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing molten iron insulation covering agents have unstable insulation effects, low resource utilization rates, and poor environmental performance.
By utilizing the porous structure and physicochemical properties of red mud, porous red mud pellets are prepared. The microporous structure is controlled by a pore-forming agent to form a stable heat-insulating coating layer, which is then gradually melted into molten iron or slag at high temperature to achieve resource utilization.
It significantly reduces the temperature drop of molten iron, improves the resource utilization rate, has controllable heat insulation performance, is environmentally friendly, and can adjust the slag composition after pellet melting, thus synergistically improving the steelmaking process.