A vacuum system is a set of equipment used to evacuate air from the plant during the bleaching and deodorization process. Bleaching and deodorization are critical stages in edible oil refining. The stability and reliability of the vacuum system is crucial to the effectiveness of both processes. It is the key criteria for delivering high-quality oil.
Goto Qifeng to know more.
A vacuum system prevents oil from being oxidized at high temperatures. It also lowers the boiling point at vacuum conditions, making it easier for volatile materials to be flushed away by steam for an efficient deacidification and deodorization process. The degree of vacuum needed for bleaching and deodorization generally depends on the quality of crude and the end product specifications provided to the technology partner. The configuration of the vacuum system plays a key role in the quality of the end product.
There are primarily two types of vacuum systems used in the deodorization process - these are conventional or chilled water.
A conventional vacuum system consists of a direct contact condenser operating with cooling water and ejectors operating with high-pressure steam. A traditional vacuum system is a low investment and low maintenance system.
However, there are many disadvantages associated with a conventional vacuum system.
They are bad for the environment.
Conventional vacuum systems are heavy polluters due to the carryover of process fluids.
Operating costs add up over time.
Conventional vacuum systems require high steam and water consumption which adds significantly to running costs over time.
They require frequent human intervention.
Want more information on Vacuum Vegetable Oil Refinery Machine for Sale? Feel free to contact us.
While conventional vacuum systems are low maintenance, they need additional human intervention as the cooling tower requires frequent cleaning of fats carryover.
In a time of increasingly stringent environmental norms and rising energy costs, it is necessary to use a vacuum system that offers significant energy savings and low running costs while having the most negligible impact on the environment. This is why Kumar Metal uses chilled water vacuum systems in all our refinery plants.
How chilled water vacuum systems work: The cooling water is cooled down near to 0°C by a chiller before passing the water over to the mixing condensers. Condensation takes place at reduced pressure, and a single booster stage is needed to effect compression up to the main condenser. This results in a considerably lower amount of motive steam and reduced operating costs.
The polluted cooling water cycles around in a closed-loop system and cooled down in cooled plate heat exchangers. Caustic soda is added to the water to prevent fatty deposit contamination in the plate heat exchangers. A special fat separator discharges the Condensate and suction steam together with impurities rising from the process.
Chilled Water Vacuum Systems have many advantages as compared to conventional systems, including
Energy savings in steam go up by 50% and water by 35% with chilled water vacuum systems. The low running cost also means a smaller payback period of 3-4 years.
You might find these interesting:
Why vacuum systems are critical in the edible oil refinery process
Some of the trending innovations in the oils and fats processing industry in
Here are the 5 questions you should ask before setting up an edible oil refining business
This ground breaking technology - Controlled Flow Cavitation' - enhances the neutralization process in refining operations
Application
REXON Vacuum Oil Filtration Plant for Used Cooking Oil Cleaning is especially designed to remove water, gases and particulates from waste cooking oils, vegetable oils, palm oil, rapeseed oil, sunflower seed oil, olive oil, peanut oil coconut oil, etc. The COP purifiers are designed for processing oils in workshops or in the field.This machine can rapidly remove water, particulate matters, impurities and gas, air, volatile matter (for example ethyl alcohol, gasoline, ammonia and so on) from waste cooking oil completely.
Features
1. This plant is composed of two parts, one is the press filter, and the other is the vacuum oil purifier system. The press filter can remove the big or tiny impurities; The precision of purification can reach to 1 Micro. The vacuum system is equiped with filters of three grade (primary filter, mass water separator, and fine filer). All processes is under vacuum condition.2. The primary filter, which is made of the stainlessness steel, is anti-rust and anti-corrupt. It mainly removes the residual impurities which escape from the press filter, making sure the treated oil won't have any impurity when it goes into the water separator and vacuum separator.
3. The water separator, which is equiped with a special filter, mainly removes the mass water from the oil. Usually the waste cooking oil contains much water and it need to be removed from the oil. After the water separator, the oil just contains the tiny water and soluble water.
4. After the process of the water separator, the oil will goes into the vacuum separator which adopts three-dimensional duplex evaporation and film evaporation. For protecting the oil nature, it is better that the oil temperature is lower than 80°c. Because our machine works under the vacuum and low pressure condition, so the oil doesn't need to be heated to 100 °c and usually it just need to be heated to 45 °c. Then the tiny water, soluble water, acid, alcohol, other volatility liquid and so on can be removed completely and effectively.
5. For the fine filter, which is equips with the stainless steel filter, the purification hole is less than 1 Micro, which can make sure the filtered oil is completely clear without any impurity.
6. It adopts back flushing system, which can clear impurities automatically.
7. We uses stainless steel filter element which is good at anti-corrosion. Especially, the precision of filtering impurities is quite high and the service life is long. Also, it has a large volume for storing the impurities.
8.Its unique degassing and dewatering system adopts the 3D-evaporation technique and thin film evaporation, which can separate the trace water, soluble water and gas from the oil quickly by the multi-level water-oil separation technology.
9. Highly automatic operation. convenient, reliable, and safe.
Advantages
According cooking oil nature, the used cooking oil/vegetable oil includes high water, more acid matter, much impurities and offensive odor. This UCO filtration system adopts Plate Pressure system can separate the sundry matters and water from the oil quickly, and break the oil emulsification effectively. Then equip with two primaries filter and fine filter, it can remove impurities thoroughly. Next, the machine adopts highly vacuum system to dewater system to dehydrate and deodorize the oil fast. In addition, this machine use stainless steel filter element, it resists the acid in oil strongly. So after the treatment by the machine, the UCO quality will become very good and without such contamination again, which is perfect as raw material to produce biodiesel, or other products like soaps, and so on.
Contact us to discuss your requirements of cheap screw press machine. Our experienced sales team can help you identify the options that best suit your needs.