If the internal mixer leaks, you should first check whether the raw material contains a lot of water. If not, you should see whether the rubber port of the car is complete, and then try the rotor, mixing chamber, discharge door, and pressure hammer to check the location of the leak.
It is difficult for internal mixers to leak water. The main reason for this situation is carbon black, because carbon black absorbs moisture in the air, and a large amount of water vapor will be generated at a mixing temperature of about 100 degrees, which will accumulate into water during debinding. It will be mistaken for the internal mixer to leak water. The way to eliminate the water vapor is to lift the pressurized cover several times to drain the water vapor during each mixing process, so that there is no water.