This device has the following main features: a thin strip heat and atomization spray cooling, the molten liquid rapidly curing; in the discharge end of the strip due to bending of the change, so that network with a combination of surface and curing materials have separated , when the dust discharge minimal particle shape to be protected; distributor and strip using double-frequency control, according to production capacity and material properties of parameter adjustment, control; three-stage temperature control to ensure stable system operation, and reliable.