A method and a device for charging a plurality of reduced iron raw materials into a traveling hearth reduction-melting furnace and treating the raw materials, allowing sufficient input of heat to the reduced iron raw materials on a hearth covering material to improve treatment efficiency are provided. The reduced iron raw materials are released downward from the lower surface of a ceiling of the reduction-melting furnace to be set on a hearth covering material on a hearth and reduced on the hearth covering material. The falling reduced iron raw materials are given a horizontal velocity having a direction equal to the travel direction of the hearth and being greater than the travel speed of the hearth to enable the reduced iron raw materials to roll in the same direction as the travel direction of the hearth after landing on the hearth covering material.

A device for producing semi-solid slurry, including a height adjustment mechanism, a position adjustment mechanism, a melt protection mechanism, a support mechanism, a revolving pipe, guide mechanisms, thermally-adapted elastic supports, a driving mechanism of the revolving pipe, and a cooling module. The height adjustment mechanism is a box structure including an upper casing and a lower casing. The position adjustment mechanism includes a stationary rail and a moving rail support, and the stationary rail is fixed on the upper casing of the height adjustment mechanism. The melt protection mechanism includes a seal box including a base plate fixed on the moving rail support. The support mechanism includes a main support frame and an angle adjustment bracket, the main support frame is fixed on the base plate of the seal box, and the angle adjustment bracket is mounted on the main support frame.

A method and a device for charging a plurality of reduced iron raw materials into a traveling hearth reduction-melting furnace and treating the raw materials, allowing sufficient input of heat to the reduced iron raw materials on a hearth covering material to improve treatment efficiency are provided. The reduced iron raw materials are released downward from the lower surface of a ceiling of the reduction-melting furnace to be set on a hearth covering material on a hearth and reduced on the hearth covering material. The falling reduced iron raw materials are given a horizontal velocity having a direction equal to the travel direction of the hearth and being greater than the travel speed of the hearth to enable the reduced iron raw materials to roll in the same direction as the travel direction of the hearth after landing on the hearth covering material.