Safety production rules for concrete mixing plant

First: In the concrete production industry, the installation of Concrete mixing plant is very important, should be carried out by professionals in accordance with the provisions of the factory manual, by the technical staff under the auspices of the organization but also debugging, technical performance in all the provisions and Acceptance of qualified, the concrete mixing station can be put into use.
Second: In the safe operation of mixing with the mixing station air compressors, belt conveyors and concrete mixers and other equipment, should follow the relevant provisions of the operation.
Third: in the production before the need to check the project should meet the following requirements:
(1) The first is to check the mixing tube and the supporting body of the transmission, moving parts and warehouse doors, Doumen, track, etc. no foreign body stuck;
(2) Next is to check the oil level of the oil tank in line with regulations;
(3) is to check the valve to open the exhaust gas system in the water separator too much water, open the reservoir discharge plug discharge oil and water mixture;
(4) also check the hoisting bucket or dragline installation of wire rope, reel winding are correct, wire rope and pulley in line with regulations to enhance the hopper and drag shovel brake Ling Ming effective;
(5) need to check the ministries of the bolts have been tightened, the inlet and discharge valve without excessive wear and tear, the tension of the conveyor belt appropriate, not deviation;
(6) Check all the control devices and display part of the work is normal, its accuracy in line with regulations;
(7) Finally check the electrical device can effectively control the mechanical action, the contact point and the dynamic and static contact without significant damage.
Fourth: the proportion of raw materials in the selection of concrete production should be prepared according to the technical performance of the mixing station qualified sand, stone aggregate, particle size beyond the permitted range shall not be used.
Fifth: the various parts of the unit should be gradually activated. After starting, the operation of each component and the instructions of the instrument should be normal, oil, gas, water pressure should meet the requirements before they can begin operations.
Sixth: regardless of any personnel, as long as it is in the course of operations, in the storage area and the hopper under the bucket, is strictly prohibited personnel access.
Seventh: Before the production, the mixing tank should be covered before starting the cover. Mechanical operation, is strictly prohibited hand, foot into the hopper or mixing tube probing.
Eighth: When the aggregate station was stuck in the aggregate when the warehouse should be promptly clean up the blockage.
Ninth: the production mixer can not be full of stirring down, such as sudden power outages in a timely manner to open the discharge. When a fault or power failure, should immediately cut off the power, lock the switch box, mixing the concrete within the cylinder clean, and then troubleshooting or waiting for power to restore.（www.zzxfjxwm.com）
10: In the production and use of the mixing station machinery shall not be overloaded; should check the motor running, when abnormal sound or temperature rise is too high, should immediately stop inspection; voltage is too low can not be forced to run.
Eleventh: After the end of the production mixer shut down, you should first uninstall, and then turn off the various parts of the switch and pipeline. Should be within the spiral pipe all the cement out of the tube can not be left any material.
Twelfth: After operation, should clean up the mixing tube, the material door and the hopper, and rinse with water, while washing additives and its supply system. Weighing system knife seat, knife-edge should be cleaned, and should ensure that the weighing accuracy.
Thirteenth: the freezing season, should be exhausted pumps, additives, pumps, tanks and additives tank of water, and should start the pumps and additives pump operation.
14: When the mixing station is transferred or deactivated, the tank, additive tank, cement, sand, stone storage hopper and weighing hopper should be drained and cleaned. In the transfer of equipment, the bar should be balanced head balance bar scale bar fixed, the sensor should be unloaded.

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