METHOD OF LOW-MELTING THERMO-ADHESIVE SUBSTANCE LAYER APPLICATION ONTO THE HORIZONTALLY MOVING COMPLEX CONFIGURATION SUBSTRATE Russian patent published in 2018 - IPC C23C24/10 

FIELD: technological processes.

SUBSTANCE: invention relates to the method of low-melting thermo-adhesive substance thin uniform layer application onto the moving horizontal extended surfaces having elongated and complex configuration, and can be used, for example, in the mineral processing thermo-adhesive separators, when the uniform layer is automatically applied onto the thermal-adhesive separator conveyor belt channels (troughs) for diamonds selection and extraction from the accompanying minerals grains mixture having significantly different transfer heat from one body to another capacities. This method comprises the thermo-adhesive substance powder application and its subsequent heating with production of the predetermined thickness layer, at that, supplying the thermo-adhesive substance onto the moving elongated substrate surface in the form of fine-grained powder from a vibration hopper in the form of triangular prism through the outlet openings located on its tapered bottom line. Adjustment of the powder amount supplied to the said moving substrate is performed by changing the gap between the vibration hopper outlets and directed to the substrate round rods cone-shaped tips installed in the vibration hopper volume and passing through the vibration hopper outlets and coaxial to them holes in the beam, securing the vibration hopper parallel walls, by moving the rods up and down relative to the beam. Powder heating is performed by heaters having the substrate transverse cross-section shape and located behind the hopper in a row perpendicular to the substrate movement. Thermo-adhesive substance deposited layer thickness is set by changing the gap between the substrate surface and the heaters by their lowering or raising.

EFFECT: enabling continuity of the fine-grained powder feeding to the moving elongated surfaces with provision of the applied layer uniform and adjustable thickness production, as well as increase in the energy consumption efficiency and reducing the gas and vapor formation during the thermo-adhesive substance melting.

1 cl, 2 dwg