Abstract:
A method and a device for applying a lining to the interior wall of a concrete sewer pipe (1). Use being made of a mixture from sand, fly ash and a binding agent for obtaining a viscous mixture which is brought onto the wall by means of a motor driven disc (24) which is supported by a frame (4) of the device. Said device further comprising means (43,49,50,51) for smoothing the applied layer of material and for removing sewage being supplied to the pipe (1) during applying the lining.
Abstract:
An apparatus (10) for applying a liquid barrier coating (22) to a portion of discrete objects (14) such as fasteners is provided. A plurality of loose or connected parts (14) are introduced onto a magnetized conveyor (24). An optical sensor (74) detects the parts (14) and triggers guns (72) to apply a discrete shot of liquid coating material (22) such as fluorocarbon onto a predetermined portion of each part (14). Optionally, the parts (14) are provided to a second conveyor (36) in an inverted position for coating a second portion of each part (14). Blotters (78) may be provided to remove excess coating material (22), and dryers (84) and heaters (86) may be provided to fix the coating (22).