In asphalt pavement construction, asphalt mixing tank i […]
In asphalt pavement construction, asphalt mixing tank is the key equipment to ensure construction quality and improve efficiency, and is a very important part of pavement construction technology.
In the construction process, if the production capacity of the equipment is seriously insufficient, the actual production capacity is much lower than the rated production capacity of the equipment. Firstly, it is necessary to eliminate the design defects of the equipment itself, such as the small size of the drying drum (diameter and length), the burner power is not enough, the sieve Small area, small stirring power, etc. In addition to troubleshooting the device itself, then you need to consider the following factors.
Asphalt mixture is improperly matched. Asphalt mixture mix ratio is divided into target mix ratio and production mix ratio. The target mix ratio controls the proportion of the gravel material cold material transportation, and the production mix ratio is the mixing ratio of various sand and stone materials in the asphalt finished product specified in the design. The production mix ratio is determined by the laboratory and directly determines the grading standards for the finished product. The target mix ratio is set to further ensure the production mix ratio. The production can be adjusted according to the actual situation. When the target mix ratio or production mix ratio is not suitable, the stones stored in the various meters of the mixing station are disproportionate, and some materials such as flash and some materials cannot be weighed in time, and the mixing tank is idling to reduce the output.
Sand and stone grades are not qualified. Each type of sand and stone material has a grading range. If the feed is not tightly controlled and the grading is severely out of range, a large amount of “waste” will be generated, which will result in the measurement bin not being measured in time. Not only does it result in low production, but it also wastes a lot of raw materials.