FAQs:
Q: What should I do if the screw oil press has a low oil yield?
A: Check the raw material moisture content (keep it at 8-10%), the chamber temperature (preheat to 70-80°C), and the gap between the pressing bars (0.05-0.08mm). Excessive dryness or moisture will affect oil yield.
Q: How should I choose between a hydraulic oil press and a screw oil press?
A: Hydraulic presses are suitable for high-value oilseeds (such as peanuts and walnuts). Cold pressing preserves nutrients but reduces production capacity. Screw presses operate continuously and are suitable for bulk oilseeds like soybeans and rapeseed, with a high degree of automation.
Q: How can I reduce the acid value in refining equipment?
A: During the deacidification stage, the amount of lye (pH 7-8) and temperature (60-70°C) must be precisely controlled to avoid excessive soapstock formation and ensure uniform mixing.
Q: What should I do if the oil filtration system frequently clogs?
A: Clean the filter regularly (recommended every 8 hours), check the oil gaps for oil residue, and use a whetstone to restore the gap if necessary.
Q: What precautions should be taken during the run-in period for new equipment?
A: During the initial feed, use dry cake or a small amount of oil for a slow run-in, gradually increasing the load to avoid a sudden increase in chamber pressure that could cause seizure.
Q: How can I resolve a strong odor in my deodorization equipment?
A: Check the steam injection rate (0.5-1.5% of the oil weight) and vacuum level (≤5 mmHg), ensure the deodorization tower packing is free of coking, and clean the pipes regularly.
Q: Optimizing high energy consumption in equipment?
A: Using waste heat recovery technology (such as preheating the raw materials) and variable frequency motor control of the main engine can reduce energy consumption by 15-20%.
Q: What causes oil press bearings to overheat?
A: Check the lubricating grease level (refill once per shift) and the gearbox oil level (at least 1/2 full), and eliminate issues such as excessive load or overtightening.
Q: How can I extend the life of my refining equipment?
A: Use 304 stainless steel to prevent chloride ion corrosion; replace seals regularly (every 1-2 years), and drain residual fluid from pipes during downtime.
The above issues cover the entire process, from pretreatment to refining. It is recommended to match equipment parameters to oil characteristics (such as oil content and acid value) and establish a regular maintenance plan.