Hydraulic press during operation should always check out the press cake cases and controls billet is neither too high nor too low moisture . The cake should be normal flaky , pressed by the screw shaft side smooth , the other side has a lot of hair pattern. If the cake loose weakness, or a shapeless cake , darker color , hand pinch Serve fragments , indicating that add little water blank ; such as the cake soft, flaky increase in National oilfield equipment University , or the oil bubble, Minga said that too much water . Under normal circumstances, no or very little residue circular row between the slag , slag in place of discharge , such as slag was fine flakes description more water, the powder residue then the less moisture. In addition, the position of the oil changes can be squeezed out of the water to see if appropriate , when pressed into the water is too pellet press low , the oil locations are backward .
Before using a hydraulic press, first of all should be ready aids and containers , check and adjust the belt tightness . Then start the motor , the machine empty running around 15min, check the speed of the pressing screw shaft. Average speed should be around 33dmin. Do you want to pay attention to when idling gear box gear meshing and sound normal, whether the bearings and motor parts properly. When press idling , the motor current should be about 3A. If the current is too high , you should immediately stop checks, adjustments and then boot.