How To Clean The Barrel And Screw Shaft Of The Oil Press?
As the core equipment for oil processing, the cleanliness of the oil press is directly related to the operating efficiency, oil quality and service life of the equipment. As the key components of the oil press, the barrel and screw shaft are in contact with grease and residue for a long time, which is easy to accumulate grease and impurities, affecting the oil pressing effect. Therefore, regular cleaning and maintenance of the barrel and screw shaft of the oil press is an important measure to ensure the efficient and stable operation of the equipment. This article will introduce the cleaning guide of the barrel and screw shaft of the oil press in detail to help users better maintain the equipment.
What tools and cleaning agents are needed to clean the barrel of the oil press?
It is recommended to prepare two types of cleaning tools. One is a physical tool that directly contacts the parts, such as a stainless steel scraper with an elbow and a bristle brush made of pig bristles. In addition, pneumatic equipment such as a high-pressure water gun that can adjust the pressure is also required. It should be noted that auxiliary equipment such as vacuum cleaners are best selected as industrial-grade products. After all, the suction power of household models may not be enough to handle the fine particles in the corners of the barrel.
The selection of cleaning agents mainly considers food processing safety regulations, that is, biodegradable bioenzyme preparations or food-grade acidic solutions are preferred. For example, citric acid is better at dissolving grease, and alkaline formula cleaning agents are suitable for neutralizing the sour taste produced by fermentation. After using this type of solvent, remember to rinse it repeatedly with clean water for more than three times, so that it is not easy to have residues after treatment.
The combination of tools and cleaning agents needs to be adjusted according to the material of the machine. Specifically, for example, when dealing with stainless steel pressing chambers, it is more appropriate to use acidic solutions such as citric acid, while cast iron materials are more suitable for alkaline cleaning products because they are easy to rust, which can remove dirt without damaging machine parts. In actual operation, if you encounter lumps that are difficult to remove, you can soak them in warm water for half an hour and then operate them with a long-handled shovel.
How to correctly disassemble the screw shaft of the oil press for thorough cleaning?
Before operation, you need to disconnect the power supply of the equipment, such as finding the red emergency stop button on the control panel to shut down. Then you need to manually release the residual pressure in the hydraulic pipeline, which can be achieved by repeatedly pressing the pressure relief valve. It is important to note that the equipment must be completely stopped before subsequent operations can be started.
Before removing the parts, it is recommended to use an oil-based marker to mark the original position of the transmission components on the gearbox housing. For example, draw an alignment line on the contact surface between the end of the screw shaft and the bearing seat, so that it can be quickly positioned to the initial installation state when reinstalling.
When handling fixed components, specific tools are required to gradually loosen the nuts in a diagonal order. For example, first handle the screws at the 12 o'clock direction, and then turn to the 6 o'clock direction to operate alternately. This operation can prevent the screw shaft from being offset due to unilateral force.
When separating the transmission device, pay special attention to protecting the connection structure. For example, when handling the chain drive, use circlip pliers to remove the elastic retaining ring first. For couplings with keyway matching, it is necessary to first use a hot air gun to properly heat the metal parts, and use the principle of thermal expansion and contraction to reduce the difficulty of disassembly.
It should be emphasized that lifting equipment must be used to assist in the removal of the screw shaft. For example, in workshop conditions, a gantry crane can be used with a nylon sling for three-point balanced lifting, which can effectively prevent the shaft from bending and deforming due to its own weight.
It is recommended that all disassembled standard parts be immediately treated for rust prevention, such as applying lithium-based grease to the threaded part of the bolt with a brush. Parts of different specifications should be stored by type, such as using a divided parts box to store small parts such as gaskets that are easy to lose.
What safety precautions should be taken when cleaning the press chamber and spiral shaft?
Personal protection
For example, operators need to wear basic protective equipment such as non-slip gloves and goggles. Dust masks are mainly used to avoid inhaling dust or chemical splashes generated during the cleaning process.
Key points of operating specifications
In terms of operating procedures, first confirm that the equipment is completely powered off, that is, the power plug must be unplugged, and a "no closing" warning sign must be hung at the switch. When using a high-pressure water gun, the operator should pay attention to maintaining a sufficient safety distance, such as standing one meter away, which can effectively prevent accidental injuries caused by water pressure rebound.
Environmental control requirements
The working environment needs to maintain good ventilation conditions, that is, it is necessary to open windows or exhaust fans, so as to reduce the concentration of detergent volatiles in the air. Special attention should be paid to fire prevention. There should be no open flames or high temperature sources at the operation site. The area where the detergent is stored is preferably equipped with basic fire-fighting equipment such as dry powder fire extinguishers.
How to effectively remove the grease and residues remaining on the pressing chamber and spiral shaft?
Physical cleaning method
Physical cleaning is mainly divided into two steps. First, use a metal scraper to scrape off large pieces of residue, and then use a hard-bristled brush to carefully scrub those gaps that are not easy to reach, such as the grooves between the threads of the spiral shaft. For particularly stubborn grease, you can consider flushing with a low-pressure water gun (pressure not exceeding 5MPa), which can effectively clean without damaging the surface of the equipment.
Chemical cleaning methods
For chemical methods, you need to remove the spiral shaft first, and then soak it in the prepared detergent solution. For example, the water temperature is kept between 50 and 60 degrees Celsius, and the soaking time is controlled to 1 to 2 hours for better results. To clean the inside of the press, you can first use a spray bottle to evenly spray the detergent, let it stand for about ten minutes to allow the agent to fully react, and then scrub it with a nylon brush or a soft brush.
Confirmation of cleaning effect
In terms of cleaning effect verification, the first thing is to conduct a visual inspection, that is, to ensure that there is no obvious oil or food residue on the surface. Then you can touch the surface of the equipment with your hand. If you can't feel the greasy oil film residue, it basically meets the cleaning standard.
How to maintain the press chamber and spiral shaft of the oil press after cleaning to extend the service life?
For drying and rust prevention, you can do this: for example, use an industrial-grade hot air gun to carefully blow dry the remaining water stains in the press chamber. At this time, be careful not to exceed 80℃. For metal parts such as the spiral shaft and the inner wall of the press chamber that are prone to rust, you need to evenly apply edible anti-rust oil, such as mineral oil products that can be bought in supermarkets.
There are several key points to pay attention to in lubrication and maintenance: for example, choose a high-temperature resistant grease product, such as the common lithium-based grease, and remember to add enough to the bearing seat every time you maintain it. When checking the rubber rings used for sealing, if you find deformed or cracked O-rings and gaskets, you should replace them with new ones in time.
Suggestions on daily maintenance arrangements: You can set the cleaning cycle according to the working time of the machine. For example, you should do a thorough cleaning after a cumulative operation of about 500 hours. It is best to establish a maintenance record book to clearly record the time of each maintenance, which parts have been replaced, and the problems encountered, so that it is convenient to trace back in the future.
The cleaning and maintenance of the core components of the oil press directly affects the oil quality and equipment life. By choosing the right tool materials, mastering the correct disassembly method, paying attention to the safety regulations of operation, and regularly removing oil stains and impurities and doing a good job of subsequent maintenance, the service life of the machine can be effectively extended. It is best for users to develop a cleaning and maintenance plan suitable for their own machines according to their own oil pressing output and frequency of use, and to implement the maintenance plan on time, so that the equipment can operate stably for a long time.
