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US 9,863,702 B2Granted
Process for ore moisture reduction in conveyor belts and transfer chutes
AssigneeVale S.A.
InventorsThiago Cesar de Souza Pinto, Márcio de Alcântara Costa, Laurindo de Salles Leal Filho, Danilo da Fonseca Silva e Silva
Life of this patent
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Abstract
A process for ore moisture removal by exposure of the ore to a hot and dry air stream is described. Also described is a conveyor belt and a transfer chute adapted for the use of the above process. Among other aspects, the process has the function of reducing moisture in ores prior to the shipping stage of this material.
Claims17
A process to reduce ore moisture, comprising:
- inserting ore in a closed and isolated environment;
- removing atmospheric air moisture;
- heating the atmospheric air;
- and
- insufflating dry and hot air resulting from the removing of atmospheric air moisture and the heating of the atmospheric air into the closed and isolated environment containing the ore.
2 more elements
A transfer chute to transport ore, comprising:
- an ore inlet;
- an air inlet;
- an ore outlet;
- and
- a central chamber;
- the central chamber placed between the ore inlet and the ore outlet;
- and
- the air inlet being set to inject, into the central chamber, hot and dry air that underwent condensation and heating treatment before entering the central chamber of the transfer chute.
5 more elements
An ore conveyor belt to transport ore, comprising:
- an insulation duct installed radially around a structure of the ore conveyor belt, the insulation duct set to isolate the conveyor belt from the external environment;
- a hot and dry air provider unit;
- and
- a feeding duct set to fluidly communicate an environment internal to the insulation duct to the hot and dry air provider unit.
1 more element
Dependencies are inferred from the claim text.