METHOD AND DEVICE FOR FEEDING PREHEATED GRANULAR MINERAL MATERIAL TO PRODUCE MINERAL MELT Russian patent published in 2021 - IPC C03B3/02 

FIELD: material processing.

SUBSTANCE: group of inventions relates to a device for producing mineral melt and to a method for feeding preheated granular mineral material from a separation cyclone to an inlet part of a cyclone furnace. The device for producing mineral melt contains the cyclone furnace and the separation cyclone. The device additionally contains a mechanism for feeding preheated granular mineral material from a lower part of the separation cyclone to the inlet part of the cyclone furnace. The specified mechanism contains a material intake channel designed to receive preheated granular mineral material from a lower outlet part of the separation cyclone, wherein there is the first pressure in the material intake channel, an outlet channel that feeds granular mineral material to the inlet part of the cyclone furnace and in which there is the second pressure, wherein the second pressure is higher than the specified first pressure, and a gas separation valve located between the specified material intake channel and the specified outlet channel. The gas separation valve contains a case that passes at an upward slope from the specified material intake channel in the lowest section of this case to the specified outlet channel in the uppermost section of this case. The gas separation valve is equipped with a fluidization device, thereby enabling the flow of fluidized granular mineral material under the influence of gravity from the material intake channel to the lowest section of the case and from the uppermost section of the case to the outlet channel. The fluidization device contains a mixing device located in the gas separation valve. One or more air inlets for fluidization of granular material are provided in the material intake channel.

EFFECT: technical result is the elimination of the problem of dosing preheated granular mineral material, thereby preventing the occurrence of backflow and clogging of the system of granular material feeding.

7 cl, 2 dwg