How to operate and control concrete batching plant
Pre-shift checking

1-1, Per shift, before starting the operation personnel to mixing console reducer oil, discharge gate hydraulic pump oil, stirring shaft axis oils (should be more than 1/2), the amount of lubricating oil is enough, the pressure is normal, the tubing and connectors for fracture and fall off, belt conveyor, screw conveyor and other parts of the lubrication point inspection, and infuse lubricating grease.
1-2, Check whether there is metal inside the mixer, blade, fixed bolts for the loose lining etc.
1-3, Close close the total power on and off control power supply switch to close to purify the power switch, the PLC power switch.Closed control in the power switch to start the monitoring program, check whether there is any abnormal on monitoring cases of each monitoring indicator (oil, oil temperature, lubrication sleeve motor working condition).
1-4, No-load start mixing console belt conveyor running 10 minutes delayed and check the operation is normal, have the same ring, conveyor belt presence of partial and fracture (such as abnormal immediately notify overhaul class to rule out).
1-5, Start the air compressor, check whether the operating normally, gas path without leakage, pneumatic pressure should be kept in 0.55 ~ 0.7 Mpa, concrete arch pressure should be 0.02 Mpa.
1-6, Check the water supply system, liquid admixture system, functioning pipe flow, and no leakage.Pool tank liquid and liquid admixture amount.
1-7, Check everywhere discharging door, electromagnetic valve, cylinder opening and closing is normal, the stroke switch, signal line work is normal.
1-8, In manual way point moving screw conveyor, check whether running normally.Filling grease.
1-9, Forbidden loading start and stop halfway, in case of power outages and other accidents, and stop, turn off the power first, immediately open the blender the discharging door, cylinder is put to remove material, to prevent condensation.Start again, should press "1" to run.
1-10, Host production operation interval of about three hours, the longest do not exceed 4 hours, must have water to flush a host.Use will produce water supply pump into a host, stirring rotation about 3 minutes, released after the wash water to continue production.
1-11, Continuous production of high grade concrete C40 above.their, except the flush with your host must perform the auxiliary flushing with water cannons.
1-12, Host production running more than 12 hours, the longest do not exceed 24 hours, must stop by the auxiliary workers within the host and feeding gate shaft parts make a thorough cleaning.
1-13, Interval clean washing and cycle to wash, clean record for future reference.
1-14, If encounter in the process of production operation on standby and downtime, belt conveyor starts again, must make the no-load running for 2-3 minutes and then continual production, it is forbidden to start, feeding at the same time, prevent the belt from impact tensile overload damage conveyor belt.
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