Purpose: To control the transportation process of ready-mixed concrete products to ensure that the products meet customer requirements.
1. The concrete batching plant must be operated by personnel who are familiar with the structure and performance of the concrete mixing plant; familiar with the mixing process of concrete, and have passed strict examinations and obtained an "operation certificate". The operator must be familiar with the operating procedures and maintenance procedures of the mixing station.
2. Before the standard stationary concrete batching plant is used, the supporting equipment of the portable concrete mixing plant: mobile belt conveyor, loader, cement silo, etc. must be equipped as required. These equipment can be connected to the external power box of the mobile mixing plant and automatically controlled by the signal sent by the electric level indicator in the hopper of the mixing station.
3. The universal mobile batching plant must be operated according to the prescribed operating procedures, so remember the function of each button, knob, and indicator light on the control panel of the program control box and understand the operating procedures.
4. After turning on the key switch, the numbers on the display screen must light up before starting each motor. After the air compressor is started, the air pressure must rise to above 0.4Mpa before the metering, discharging and other procedures can be operated.
5. When weighing manually, a set of weighing devices is used for sand, stone 1 and stone 2, and the numbers displayed on the display are cumulative values. When weighing manually or automatically, if the displayed numbers do not jump or the pointer on the reading disk does not rotate, it means that the weighing is blocked. At this time, press the "vibrator" button to make the vibrator work.
6. When weighing automatically, if the actual metering value is found to be inconsistent with the set value, it can be compensated by the "drop compensation" knob. When discharging automatically, pay attention to the changes in the numbers on the digital screen. The cumulative values of sand, stone and cement should gradually drop to "0", and the water and additive values should rise to the specified values.
7. When discharging manually, press the manual button of a certain material. After the material is discharged, release the button and observe whether the material is discharged. Manual discharge, when the operation is proficient, you can press the four buttons of "manual discharge of aggregate", "manual discharge of cement", "manual metering of water", "manual metering of admixture" at the same time to discharge them at the same time to improve efficiency.
8. After the concrete in the universal concrete batching plant is discharged and the discharge door is closed, you must wait until the "mixer empty" indicator light is on; the "mixer door open" indicator light is off before the next operation.
9. During the operation of the mobile mixing plant, you should pay attention to its current value at any time, which should generally be between 20 and 45A. You should pay attention to check the correctness and reliability of the main switch, knob, button and indicator light. The setting time of each time relay has been adjusted at the factory and should not be changed at will.
10. The mixing plant cannot be started under full load. During the mixing process, it is strictly forbidden to stop halfway. Before stopping, all the concrete in the mixing tank must be unloaded and washed with water.
11. After work, the dust inside and outside the mixing drum, the dust on the discharge door and the discharge hopper should be thoroughly cleaned and rinsed with water. In the freezing season, the water in the water pump, admixture pump, water tank and admixture tank should be drained, and the water pump and admixture pump should be started for 1 to 2 minutes.
12. After the work is completed, cut off the power supply and fill in the relevant records carefully.
