An employee was cleaning a walkway with a compressed air hose when he tripped over the hose and fell to the ground. As the employee fell to the ground, his right hand landed on the belt of a conveyor system. His hand was then pulled into the area of the conveyor where the belt turns over the drum, and his right hand was caught between the belt, drum, and frame of the conveyor. He sustained a laceration and burns to his right hand and wrist.