Environmental protection coating unit and use its coating system

The utility model discloses an environmental protection coating unit, say and heating device including frictioning nozzle, counter -flow vat, the hole of converging, time rubber tube way, feeding rubber pipe, the cross section of frictioning nozzle is the toper structure, the middle part of frictioning nozzle is provided with gap -shaped's discharge gate, the discharge gate set up in the sharp -pointed end of frictioning nozzle, the feed inlet intercommunication of frictioning nozzle the one end that feeding rubber pipe said, the counter -flow vat encircle set up in around the frictioning nozzle, converge the hole set up in the one end of counter -flow vat, the one end intercommunication that the rubber tube was said returns the hole of converging, the counter -flow vat for the slope to it sets up to converge the hole, is the gradient of counter -flow vat 4% 10%, heating device set up in the below of counter -flow vat. The utility model discloses a high -efficient coating unit simple structure can clear up ea