Operating Guidance of Twin Shaft Concrete Mixer

Brief Introduction：Operating guidance of twin shaft concrete mixer include rules about starting, placing and powering of a mixer and how to avoid safety accidents.

　　The twin shaft concrete mixer is becoming more and more popular with faster and faster development of the countryside. New countryside construction is strengthened and the demand for concrete is rising as well. Correspondingly news about injuries caused by wrong or inappropriate running of the twin shaft mixer are reported almost every day. What, then, are operating guidance rules of concrete mixers?

　　First, check the clutch, brake, guard device, wire rope track and pulley before starting a forced mixer. If there is no problem, start the mixing.

　　Second, the mixer should be placed on solid and flat ground according to the position of the construction plan. It should be stabilized by brackets or legs. It is forbidden to replace the supporting legs with tires. It should be equipped with rainproof or thermal insulation shed. The roof material should be tamper-proof. An insulated console shall be provided at the hand operation.

　　Third, walking under the hopper is strictly prohibited while the hopper is being lifted. When the hopper pit needs to be cleaned, the safety chain must be hung and then cleaned.

　　Fourth, the operator must be certified to work. After starting the machine, the operator should concentrate on thinking, stick to the post, and refrain from arbitrarily guarding. When the machine is running, do not touch mixed materials inside the drum with any tools, otherwise safety accidents might occur.

　　Fifth, when a twin shaft concrete mixer is under repair or its drum is under cleaning, the power must be cut off. “No braking” notice should be placed by the gates and a man should stand by the gates, preventing any possible attempt to close the brakes..

　　Six, after a twin shaft mixer finishes a round of task, the waste water from the rotating drum should flow into the sedimentation tank. It is not allowed to discharge the waste water at random. The mixer must be powered off once the operator leaves the construction site and the lock box should be locked.