Asphalt mixing plant, also known as asphalt concrete mixing plant, refers to the complete equipment for mass production of asphalt concrete. The asphalt mixing plant can produce asphalt mixture, modified asphalt mixture and colored asphalt mixture, which fully meets the construction of expressway. The need for grade roads, municipal roads, airports, ports, etc. As a complete set of engineering materials production equipment, the asphalt mixing plant directly affects the quality of the engineering. How can the asphalt mixing plant perform effective quality control on asphalt mixing? . The mixing plant should have complete drainage facilities. All kinds of aggregates must be separated and stored. The fine aggregate yard should be equipped with a rainproof roof. The material yard and the field should be hardened. It is strictly forbidden to contaminate the aggregate.

The various sensors of the asphalt mixture mixing equipment must be periodically checked and the cycle is not less than once a year. The cold feed device needs to be calibrated to obtain the aggregate feed curve. The dust removal equipment of the mixer should be in good condition and can get environmental protection requirements.

Intermittent mixers for high-speed, first-class road construction must be equipped with computer equipment. During the mixing process, various parameters such as the amount of materials measured by each sensor, the mixing amount of the asphalt mixture, and the mixing temperature are collected and printed. At the end of each class, a statistic of the shift is printed, and the “process control” and total amount inspection of the asphalt mixture is carried out. If the data of the inspection has abnormal fluctuations, the production should be stopped immediately and the reason should be analyzed.

Before starting the mixing, set the production volume of each batch of asphalt mixture, the standard mixing ratio of each hot silo, mineral powder, asphalt, etc., and set the construction temperature. During the mixing process, the computer collects the data of each mixture of the mixture through the sensor, and the data is automatically processed by the computer or printed on a disk-by-disk basis to perform on-line monitoring of the asphalt mixture.

The computer must collect the data on a disk-by-disk basis. According to the screening curve of each silo, the gradation of the ore material is calculated on a disk-by-disk basis, compared with the scope of the engineering design grading and the allowable construction fluctuation range. When the unqualified condition is found, It must be noted that if there is a failure in more than 3 pots, it is advisable to adjust the set value.

The production temperature of the asphalt mixture should meet the construction temperature requirements of the hot mix asphalt mixture. The residual moisture content of the dried aggregate shall not exceed 1%. Start a few sets of aggregates every day should increase the heating temperature, and dry mix a few pots of aggregates, and then add asphalt to mix the mix.