Since the dust collection system is integrated with the asphalt plant, the operator is required to be aware with the controls and maintenance standards. The operator is also supposed to be aware of how the dust collector system performance affects the properties of the hot mix asphalt.
Dust from the aggregates can also be reason for air pollution. Dust emissions can be kept under control by use of anti pollution equipments. The common types of dust collectors that are used to capture dust are multi cyclone dry dust collector; venture type wet dust collector and bag house. Mostly two or more of these pollution control devices may be used in sequence.
Maintenance and cleaning of the duct line connecting the dryer and the dry dust collector is as important as maintaining the pollution control systems. This is very important as clogging will not deliver good results. Usually the duct line can be inspected every month but if the dust is more, it has to be done frequently.