The invention relates to a secondary spray roughing device, and a
production line and process for a textured
geomembrane. The secondary spray roughing device comprises a rack, an
extrusion die head, aswing mechanism and a spray roughing mechanism, and the spray roughing mechanism is rotatably connected and communicates with the
extrusion die head; the spray roughing mechanism is driven by the swing mechanism to swing; the spray roughing mechanism is provided with an elastic piece, and one end of the elastic piece is connected with the spray roughing mechanism; the other end of the elastic piece is connected with the rack; the
production line for the textured
geomembrane is provided with a plate extruding device, a
calendering device, a transmission device, a
geomembrane storage device, the secondary spray roughing device and a winding device; and the production process for the textured geomembrane comprises the steps of ingredient mixing,
extrusion,
calendering, transfer, geomembranestorage, online secondary spray roughing, winding and cutoff. According to the secondary spray roughing device, and the
production line and process for the textured geomembrane, the online spray-
coating and secondary spray roughing can be achieved on the production line for the geomembrane; not only can the shortcomings of poor
adhesion force and small
friction coefficient of spray roughing materials on the geomembrane surface can be avoided, but also the effects of one-step forming and uniform textured surfaces of a geomembrane product with a single textured surface or double textured surfaces can be achieved.