1.Before starting the concrete mixing plant, the operator should know fairly well to the various components of the operation status, performance, security situation of concrete mixing plant to ensure the normal and safe operation of the machine. Before starting production of concrete mixing plant, the controller, amplifier and sensor should be used in advance 20-30 minutes to preheat. Before the production of concrete mixing plant, we should check and implement the following matters:
A.Whether the maintenance of the work is completed, whether the repaired parts and the whole package have been restored, whether the maintenance site is cleaned up, and whether there is risk to obstruct the safe production.
B. View the operation record of the previous class to see whether there are problems, check the maintenance records to see whether there are problems.
C. View the batching machine of concrete mixing plant, the host and the bracket to see whether there are safety barriers.
D. Check each scale of concrete mixing plant to see whether it is normal, and whether the working voltage is normal.
E. Neatly operation record, record the warm-up time, tare and start time.

2.The concrete mixing plant is on the starting orderly, preparing the match ratio and other work the production process required. After the opening, check the operation of the motor to see whether it is normal, and the belt is deviation. Waiting for the gas pressure to reach above 0.5Mpa, we can start the production process.

3. If some emergencies are encountered in the production of concrete mixing plant, we should deal with them in time, if they can not deal with, we should report them in a timely manner. If the production interval is more than one hour, we should wash the tank and dry the tank. After the production of concrete mixing plant, the tank should be washed with water, clean up the site and maintain the machine. After the production of concrete mixing plant, we can shutdown the concrete mixing plant according to the shutdown sequence, clean the operation site and fill in the operation records.