The drying cylinder of asphalt mixing equipment has been tested and inspected before the original factory, but it will be subject to shaking and vibration during the whole process of transportation to the construction site. A comprehensive inspection should be carried out before application: check whether all the anchor bolts have been twisted Check tightness; whether all key pins are reliably inserted; whether all drive equipment is adjusted according to the manufacturer's instructions; whether all pipeline connections are appropriate, and whether the tee joints can be trusted; whether the entire equipment is completely lubricated; Start the motor and check whether all parts can be stably rotated in the proper rotation direction; whether the air pressure gauge can work normally, whether the valve is adjusted to the correct working pressure; whether the ignition mechanism of the burner is available, and whether the gate valve is open.