Method and arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace

An arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace,

• wherein the arrangement comprises a feeding bin configured for feeding fine-grained matter into the fluidization arrangement,
• wherein the arrangement comprising a fluidization arrangement for producing fluidized fine-grained matter and for feeding fluidized fine-grained matter into a dosing bin that is located at a level below the fluidization arrangement,
• wherein the dosing bin is configured for feeding fluidized fine-grained matter to a conveyor assembly that is located at a level below the dosing bin and that is in communication with the concentrate or matte burner of the suspension smelting furnace for feeding fluidized fine-grained matter to the concentrate or matte burner of the suspension smelting furnace by means of the conveyor assembly,
• wherein the arrangement comprises a loss-in-weight controller between the dosing bin and the conveyor assembly for controlling the feeding of fluidized fine-grained matter to the conveyor assembly,
• wherein the arrangement comprises a scale assembly for determining the weight of the fluidized fine-grained matter in the dosing bin, and
• wherein the arrangement comprises a filling valve between the fluidization arrangement and the dosing bin for opening and closing the communication between the fluidization arrangement and the dosing bin and wherein the filling valve is configured to open valve when the weight of the fluidized fine-grained matter in the dosing bin goes below a pre-set low limit, and subsequently to close the filling valve when the weight of the fluidized fine-grained matter in the dosing bin goes above a pre-set high limit,
• characterized by the arrangement comprises an impact cone arranged below the filling valve for distributing fluidized fine-grained matter flowing from the fluidization arrangement within the dosing bin, and characterized by the impact cone being supported from the filling valve.