What Are The Precautions For The Initial Use Of A New Oil Press?
1. Break-in of a new oil press
Before the initial actual production, auxiliary equipment, container tape, and inspection and adjustment of tightness should be prepared. After starting the motor for the first time, let the oil press idle for about 15 minutes. During this period, check whether the speed of the screw is stable at about 3 RPM, whether there is any noise during operation, and whether the motor current is normal. If any abnormalities are found, stop and adjust the machine in time before starting production.
2. Master the temperature of the billet and correct operation
According to different fuel types, control the temperature of the billet and properly adjust the oil and water in the extrusion plate. Pay special attention to the small pressing position. Loosen the valve stem nut, pull out the movable pin, and rotate the rod closely. After the oil enters the pressure chamber, turn the movable pull rod back to its original position and fix it, while tightening the piston at the same time. The force during operation should be moderate. It is strictly forbidden to use excessive force, as it may lead to accidents. When a new oil press is used to press oil with a high oil content (such as peanuts and rapeseed), a low-pressure pump should be used for the first pressing. Replace it with a high-pressure pump after the oil output is stable. If the pointer on the working pressure gauge does not return to zero, carry out maintenance inspection, repair, or replacement of relevant parts in time. Open the return oil valve so that the oil and water can automatically flow back to the oil tank, allowing the piston to automatically remove the extrusion plate.
3.gradually put in oil for running-in test
After the new oil press runs normally without load, prepare the oil and add it to the hopper. Note: The feeding speed should not be too fast at the start to prevent the pressure in the extrusion chamber from rising rapidly, which could lead to serious issues such as twisting of the extrusion screw cage, blockages, or breakage. Therefore, gradually pour the oil into the hopper during the running-in test of the new oil press. Repeat this process for more than 3-4 hours to gradually increase the temperature of the new oil press, and you may even see smoke (which is a normal phenomenon). During this process, gradually adjust the moving speed to manage the light purple of the stud part, and simultaneously control the thickness of the filter cake and the moisture of the extrusion embryo to maintain a stable temperature in the pressing chamber.
4. Check the operation of the machine and the moisture content of the oil frequently
When the new oil press is running, check the machine's operation frequently to control the moisture content of the oil. The moisture content should neither be too high nor too low. You can judge the moisture content by observing the shape and texture of the cake. Under normal conditions, there should be almost no residue between the round rows at the slag discharge. If the slag is in the form of thin flakes, there is more moisture; if the slag is in the form of powder, there is less moisture. Additionally, when the moisture content of the raw material is too high or too low, the oil discharge position may shift backward. Therefore, it is necessary to adjust and control the moisture content of the oil according to the actual situation.
Oil press
5. Normal hydraulic operation and oil output control
When the hydraulic operation of the new oil press is normal, for fuels with high oil content, the third row is mostly positioned before the round row. The oil discharge accounts for 60% of the oil volume, the front round row accounts for about 30%, and the end oil discharge is less, often in the form of drops. This ensures that oils such as soybean and rapeseed are fully squeezed. During this period, it is important to mix the oil residue into the embryo and press the material uniformly to avoid inconsistencies that could affect the oil output and the service life of the new oil press.
