Mixing station must be equipped with protective equipment such as safety belts

1. Before starting the operation, ensure that all safety protection devices are complete and functioning properly. 1) All joints of the structural components of the batching plant must be securely fastened, with limit switches and brakes working effectively; 2) The electrical and pneumatic weighing systems should be safe and reliable, with all safety mechanisms in good condition; 3) The control room must be properly grounded and protected, and the lightning protection system of the main building should be in good working order; 4) The lifting bucket, wire rope, and conveyor belt of the feeding system must be free from damage; 5) The inlet and outlet gates should move smoothly and be in the correct position; 6) The air compressor and air supply system must operate normally, with no unusual noise or air leakage, and the pressure should remain within the specified range; 7) Clear safety signs must be placed in the operational area, storage zone, and work area. 2. After starting the mixing system, perform an idle run to check the machine's operation and confirm everything is normal before beginning automated production. Do not start with a load. 1) Operators should stay focused, monitor the feeding systems, meters, indicators, conveyors, and batchers continuously. Remove any large stones or foreign objects immediately. If any abnormalities occur, stop the production immediately and cut off the power. Report the issue to the relevant personnel promptly. 2) Operators must follow the prescribed procedures. In case of a computer failure, only trained professionals should handle repairs. Non-operators are strictly prohibited from entering the production area during operations. 3) It is strictly forbidden to open the safety cover or stirrer cover for inspection or lubrication while the system is running. No tools or sticks should be inserted into the mixing tank for cleaning or digging. When the hopper is raised, no one should work or walk underneath it. During operation, no one should enter the hopper track or stand under it, nor extend their arms beyond the track. 4) When performing maintenance at high altitudes, at least two people must be present, and safety harnesses must be worn. Maintenance at high altitudes is not allowed during strong winds, rain, or snow. 5) When overhauling the aggregate materials, the hopper should be raised to a safe height and secured with a safety pin. 6) Anyone working under the console must wear a safety helmet. 7) When maintaining or repairing the mixer’s top barrel, cleaning the inner lining or stirring blades, the power must be turned off, and a “Do Not Start” sign should be placed on the electrical switch box. When cleaning inside the mixer, the door must be opened and monitored by a person near the entrance. 8) It is not allowed to stop the mixer during operation. In the event of a power outage, the discharge gate should be opened immediately to empty the material from the mixing chamber to prevent it from setting. 9) When clearing material from the bottom of the hopper, the hopper must be lifted to a safe position and secured with a safety pin. When removing residual material, the power must be turned off, and a dedicated supervisor should be present. 10) Regularly check the reliability of electrical equipment such as switches, buttons, and indicator lights. 11) Changing the working mode during system operation is strictly prohibited. 12) All electrical wiring should be properly protected to avoid damage from crushing or impact. 13) Both the power system and control equipment require stable power supply. The voltage should remain within AC 380 ± 5%. Otherwise, electrical components may be damaged, and the system may not operate stably. 14) In case of an emergency, press the emergency stop button immediately, turn off the main power, and wait until the fault is resolved before restarting. 15) At shift change, make sure to complete the handover and record all relevant details. 16) After finishing the work, turn off the power and lock the control room.

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