Patent ID: 8579102

Claim:
A belt cleaning system to clean a conveyor belt having a carrier surface and moving in a direction of travel, the system comprising: a first cleaning assembly including a cleaning web sub-assembly including: a supply roller; a take-up roller; a cleaning web extending from a supply of clean cleaning web wound on the supply roller to the take-up roller; and an applicator disposed intermediate the supply roller and the take-up roller, the applicator being adapted to bias the cleaning web into contact with the conveyor belt carrier surface; and a second cleaning assembly positioned after the first cleaning assembly in the direction of travel of the conveyor belt, the second cleaning assembly including a cleaning web sub-assembly including: a supply roller; a take-up roller; a cleaning web extending from a supply of clean cleaning web wound on the supply roller to the take-up roller; and an applicator disposed intermediate the supply roller and the take-up roller, the applicator being adapted to bias the cleaning web into contact with the conveyor belt carrier surface; a control system, each of the cleaning assemblies also including a sensor to monitor the supply of cleaning web wound on the supply roller and transmit a cleaning web supply signal to the control system; and a drive system, wherein one of the two cleaning assemblies is in operation and another of the two cleaning assembly is in standby, the control system activating the drive system to place the standby cleaning assembly in operation and then place the operating cleaning assembly in standby when the cleaning web supply signal reaches a predetermined level.