Process and apparatus for producing hydraulic cements
AssigneeEddie K. Wilson, Sr.
InventorEddie K. Wilson, Sr.
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Abstract
A process and apparatus for producing hydraulic cements such as portland cement utilizing electrical energy as the heat source is described. The electrical heat source includes a plasma arc torch operating in the transferred mode. A feature of the apparatus and process is in utilizing a liner within the furnace composed of a material having substantially the same chemical composition of the cement that is to be produced in the furnace. Preferably the feed materials properly proportioned to have the desired constituency of cement are fed below the melt of the furnace. The process is compact and efficient relative to the conventional rotary kiln used for producing cement.
Claims16
A process for producing a hydraulic cement, such as portland cement, said process comprising:
- maintaining a melt within a cavity that is lined with a material having substantially the same chemical composition as the desired cement, the melt also having substantially the same chemical composition as the desired cement, whereby the melt is not adversely affected by the material that lines the cavity;
- introducing appropriate feed materials into the melt below the upper surface of the melt within the cavity with the feed materials containing compounds suitably proportioned for the desired cement;
- heating the melt within the cavity sufficiently to enable the feed materials to be in a molten condition and to chemically combine within the melt, the heating being effected by electrical energy;
- withdrawing the melt from the cavity, and
- cooling the withdrawn melt to solidify it into a solid substance that has the chemical constituency and properties of the desired cement.
A process for producing hydraulic cement, such as portland cement, said process comprising:
- maintaining a melt within a cavity;
- introducing appropriate feed materials into the melt within the cavity with the feed materials containing compounds suitably proportioned for the desired cement;
- heating the melt within the cavity sufficiently to enable the feed materials to be in a molten condition and to chemically combine within the melt, said heating being effected with at least one plasma arc torch;
- withdrawing the melt from the cavity, and
- cooling the withdrawn melt to solidify it into a solid substance that has the chemical constituency and properties of the desired cement.
Dependencies are inferred from the claim text.