How To Operate The Oil Press Correctly For Oil Pressing?

As the core equipment for oil production, the operation standardization of the oil press directly affects the production efficiency, oil quality and equipment life. The correct operation process can not only reduce the occurrence of faults, but also significantly improve the oil yield and oil purity. This article will systematically explain the scientific operation methods of the oil press from start-up preparation, raw material processing, parameter monitoring, fault response to finishing work, to help users complete the oil pressing task efficiently and safely.
 Start-up preparation before operating the oil press
The standardized use of the oil press has an important impact on ensuring production efficiency and oil quality. In the actual operation process, the operator needs to pay special attention to the preparation work before starting, that is, equipment inspection, cleaning and disinfection, raw material processing and other key links. For example, when checking the equipment parts, it is necessary to focus on whether the surface of the spiral shaft is smooth and without scratches, and also pay attention to whether there is residue inside the pressing chamber. These details often affect the subsequent oil output effect.

In the specific operation process, the stability of the power supply voltage is an indicator that needs to be focused on. Simply put, it is necessary to ensure that the voltage is kept within the range of plus or minus 5% of about 380V, which can prevent the motor from generating abnormal heating due to unstable voltage. For parts that directly contact the raw materials, such as the feed port and the internal area of ​​the pressing chamber, they should be wiped with disinfectants that meet food hygiene standards. The advantage of doing so is that it can effectively prevent microbial contamination from affecting the quality of the oil.

There are several characteristics that need to be grasped in the preparation of raw materials: First, the raw material screening standard. Common raw materials such as peanut kernels need to control the moisture content below 8%, while sunflower seeds need to be dried to a moisture content of no more than 6%. Details that need to be paid attention to during the pretreatment process include using wind selection equipment to remove dust and impurities in rapeseed, or manually picking out moldy particles. Although these steps seem cumbersome, as long as they are carried out according to the specifications in actual operation, the final oil yield can be significantly improved.

In terms of safety protection, operators need to be equipped with basic protective equipment. For example, non-slip gloves can prevent slipping when handling raw materials, and goggles can effectively prevent oil residue from splashing into the eyes. It is important to remind you that standard tools should be used when debugging the equipment. Tools such as wrenches and thermometers must be placed in a convenient location to improve operating efficiency and reduce downtime.

How to correctly feed raw materials into the oil press?

 Raw material addition method

· Uniform and continuous: For example, to maintain a continuous and uniform feeding speed, you can use a device such as a hopper or a conveyor belt structure to operate, so as to avoid pouring too much at one time and causing the pressing chamber to be blocked. For example, for a small oil press, it is more appropriate to put in about 1 kg of material every half a minute.

· Model adaptation: That is, the feeding frequency should be adjusted according to the specifications of different machines. For example, hydraulic equipment needs to be added in small quantities and multiple times, and although the spiral structure oil press can speed up appropriately, it should be noted that continuity cannot be interrupted.

 Feed port operation specifications

· Tool assistance: For example, special tools with long handles should be used for auxiliary operations to avoid direct contact with running machine parts. Pay special attention to the issue of safe operation specifications here.
· Real-time monitoring: It is necessary to continuously observe the status of the feed port. If any material is found to be stuck or the machine has abnormal vibration, the equipment should be stopped immediately for inspection.

 Raw material humidity and temperature control
· Humidity management: A humidity meter can be used to detect the moisture content of the raw materials. For example, for common raw materials such as peanut kernels or rapeseed, it is recommended to control it in the range of 6%-8%. If it is too wet, it is easy to clump and affect the flow, and if it is too dry, it will affect the oil output effect.
· Temperature regulation: The cold pressing process requires the raw materials to be kept at room temperature, for example, no more than 30 degrees Celsius is more appropriate. For hot pressing, it needs to be heated to about 60-80 degrees Celsius in advance, which can destroy the plant cell structure and make it easier to squeeze out the oil.

Key parameters that need to be monitored during the oil pressing process
 Temperature monitoring
· Real-time temperature measurement: Generally speaking, during the hot pressing process, temperature detection equipment (such as infrared thermometers) is needed to continuously pay attention to the temperature of the pressing chamber. It is usually recommended to control it within the range of 120-150 degrees Celsius. If the temperature is too high, the oil may coke, which means that it is easy to produce substances harmful to the human body.
· Segmented temperature control: The temperature needs to be adjusted according to the different stages of oil pressing. For example, the equipment needs to be preheated to about 80 degrees Celsius at the beginning, and then raised to about 130 degrees Celsius in the formal pressing stage.

 Pressure and oil yield
· Stable pressure: Here you need to always observe the specific value displayed on the pressure gauge. For example, the pressure of the hydraulic oil press should not exceed 30 MPa, and the rotation force of the screw oil press should be kept within the normal range specified in the equipment manual.
· Data recording: It is recommended to record the oil output data every 10 minutes. If the oil output rate suddenly drops by more than 5%, you should check whether there is a problem with the quality of the raw materials or the machine parts are worn too much.

 Equipment operation status
· Abnormal sound identification: Usually pay attention to the sound of the motor and gear when they are running. For example, if there is a particularly sharp friction sound, this usually means that the bearing may be damaged. At this time, you need to stop the machine immediately for detailed inspection.
· Lubrication check: Check the working status of the lubrication system every 2 hours or so, and focus on whether the lubricating oil in the key parts such as the gearbox and chain is sufficient to avoid dry grinding.

What should I do when encountering an oil press failure?

 Common fault types
· Blockage: The most common situation is that there is too much cake in the press chamber and the slag outlet is blocked. It usually occurs when the humidity of the raw material is too high or the feeding speed is too fast.
· Oil leakage: If hydraulic oil leakage is found, most of the time it is caused by aging and deformation of the sealing gasket, or it was not installed properly when it was installed.
· Motor overload: For example, if the voltage is unstable or the resistance of the press chamber suddenly increases, the motor may automatically cut off the power for protection.

 Emergency treatment measures
· Immediate shutdown: As long as the equipment is found to be operating abnormally, the first reaction should be to cut off the power supply immediately, so as to avoid further damage to the machine or safety accidents.
· Cleaning and unblocking: If you encounter a blockage problem, you need to use a special unblocking tool (such as a hydraulic jack) to clean the blockage in the press chamber, and remember to replace the damaged seals.

 Professional maintenance and prevention
· Contact the manufacturer: If it is a more complicated fault (such as a motor burnout), you need to contact the equipment manufacturer to send professional maintenance personnel to deal with it.
· Regular maintenance: It is best to clean the filter once a week, tighten the loose screws, and check the wear of the spiral shaft every month. These measures can effectively extend the service life of the equipment.

Finishing work after oil pressing
Equipment cleaning and maintenance work
First, the equipment must be thoroughly cleaned, that is, the parts such as the press chamber and the filter need to be disassembled, and then the residual oil residues must be washed away with a special detergent that can contact food, especially those residues stuck in the gaps. Pay attention to brushing them clean. Important parts such as spiral shafts and gears need to be coated with edible anti-rust oil to prevent rust, which can extend the service life of the equipment.

 Storage and data recording of finished oil
The squeezed oil should be filtered through a 200-mesh filter and put into an opaque glass bottle or stainless steel barrel. The storage environment should be kept between 5-10 degrees, so that it is not easy to deteriorate. Finally, all the data of this oil pressing should be recorded, such as how much raw materials were used, how much oil was produced, and what problems the machine had, so that there will be a basis for reference when adjusting parameters or improving processes next time.

Safety precautions at the end
After the operation, the main power supply and air source of the equipment must be turned off to avoid accidental startup. Tools should be classified and put back in place, the operating table should be wiped clean, and the entire workshop should be kept as clean as an operating room.

Summary of key points of operation
If you want to use the oil pressing equipment correctly, you must pay attention to these links from the initial preparation work, to the intermediate processing of raw materials, to the monitoring of parameter changes, and finally to the handling of sudden problems. Operators should not only follow the standard process, but also regularly maintain the machine and learn more about oil processing. For example, standardized operation can not only ensure that the squeezed oil meets the hygiene standards, but also reduce the machine's failure, which is safe and profitable.

 Conclusion
Correct operation of the oil press requires full control of the entire process from startup preparation, raw material processing, parameter monitoring to fault response. Users should strictly follow the operating specifications, regularly maintain the equipment, and learn oil processing knowledge to improve their skills. Standardized operation can not only ensure production safety and improve oil quality, but also significantly reduce equipment loss, achieving a win-win situation of economic benefits and food safety.