⑴Before opening the mill, you must check whether the circuit (current and voltage, etc.), oil circuit (reducer, bearing, etc. lubrication), water circuit, etc. are normal! Then wear leather wrist guards (gloves are strictly prohibited), wear a mask during the mixing operation, absolutely avoid waist ties, belts, rubber, etc., and it is strictly forbidden to wear clothes. Carefully check whether there is any debris between the large and small gears and the rollers. When driving for the first time in each shift, the emergency braking device must be tested to check whether the braking is sensitive and reliable (if it is a knee-touch device, it must be used to touch the knee to the braking device), and the emergency braking device is strictly prohibited during normal operation. If two or more people are operating together, they must echo each other and confirm that there is no danger before driving.
(2) The preheating and heating of the roller should be controlled by the temperature rise rate, especially in the cold winter in the north, the outside of the roller is consistent with the room temperature, and high-temperature steam is suddenly introduced into the roller, and the temperature difference between the inside and outside may be above 120 ℃, and the stress of the roller may be caused by the temperature difference. It reaches 130.0～～I 50.OMPa, which has exceeded the U.1=140.OMPa of cast iron. If the rubber compound is added too early, the roller is very easy to be damaged under the superposition of lateral pressure. For the sake of safety, the empty car should be preheated, and the empty car should be refueled and lubricated at the same time, and the material should be fed when the temperature reaches or is close to the temperature set value, which should be emphasized to the operator.
(3) The rubber material should also be checked before feeding. If it is mixed with hard metal debris, it will be put into the rubber mixing machine with the rubber, which will cause the transverse pressure to suddenly increase, which will cause equipment damage.
