In the field of oil extraction, the ZY24 (202 - 3) Screw Oil Press has gained significant popularity. However, one common issue that troubles many oil mills is the blockage of the press chamber, especially when processing rapeseed. This article will delve into the key pretreatment steps before oil pressing, aiming to solve this problem and improve the overall efficiency of the oil - pressing process.
The pretreatment process before oil pressing mainly includes raw material cleaning, impurity removal, crushing, steaming, stir - frying, and conditioning. Each step is crucial for preventing press chamber blockage and enhancing oil output.
Different types of oilseeds have different characteristics, so the control of key parameters such as moisture, temperature, and time is of great importance. For example, when processing rapeseed, the moisture content should be controlled at about 8% - 10%. If the moisture is too high, it may cause the rapeseed to stick together, leading to blockage in the press chamber. On the other hand, if the moisture is too low, the oil output will be reduced. The temperature during the steaming and stir - frying process should be around 100 - 110°C, and the time should be about 30 - 40 minutes.
| Oilseed Type | Moisture Content (%) | Temperature (°C) | Time (minutes) |
|---|---|---|---|
| Rapeseed | 8 - 10 | 100 - 110 | 30 - 40 |
| Soybean | 6 - 8 | 90 - 100 | 40 - 50 |
Let's take a look at some real - world cases. A small - scale oil mill in rural area once faced serious press chamber blockage problems when processing rapeseed. After analyzing, it was found that the moisture content of the rapeseed was as high as 15%, and the steaming time was only 20 minutes. After adjusting the moisture content to 9% and extending the steaming time to 35 minutes, the blockage problem was effectively solved, and the oil output increased by about 10%.
To ensure the stability and efficiency of the oil - pressing process, a standardized operating procedure is necessary. First, clean the raw materials thoroughly to remove impurities. Then, crush the oilseeds evenly. Next, strictly control the moisture, temperature, and time during the steaming and stir - frying process. Finally, carry out proper conditioning before sending the oilseeds into the press.
To help users better understand and master these technologies, we provide a dynamic demonstration video. You can click here to watch the video, which vividly shows the entire pretreatment process.
The ZY24 (202 - 3) Screw Oil Press is a powerful tool in the oil - pressing industry. By effectively controlling the pretreatment process, we can not only solve the problem of press chamber blockage but also significantly improve the oil output and reduce equipment wear. We have prepared a practical Oil Pretreatment Operation Inspection Checklist PDF for you. Download it now to enhance your operation skills and management level. Click here to get your free checklist and explore more advanced oil - pressing technologies!