crude groundnut oil refining plant machine for edible oil produced and supplied by Shandong Microwave Machinery Co.,Ltd.
Small oil machine includes a series processing procedures as degumming, neutralization, bleaching, deodorization and winterisation. In general there are two methods of crude groundnut oil refining plant machine for edible oil, one is physical refining and the other is chemical refining by crude groundnut oil refining plant machine for edible oil. However, no matter what kinds of reining methods, crude groundnut oil refining plant machine for edible oilare all done with the help of various oil processing equipment and machinery, and Small oil machine are Small oil machine used to refine almost all kinds of oil extracted from oil seeds like sunflower seeds, peanuts , sesame seeds, and soya bean seeds etc.
Main Steps of crude groundnut oil refining plant machine for edible oil
1. Crude Oil Degumming of crude groundnut oil refining plant machine for edible oil: In this step gums in crude oil are removed by hydration with the help of phosphoric acid.
2. Neutralization of Small oil machine: In this step free fatty acids are neutralized by Small oil machine using sodium hydroxide and convert them into soap. Additional impurities are also removed by LDorption on soap.
3. Bleaching of Small oil machine: During bleaching, unwanted pigments are LDorbed physically and oil will become much clearer.
4. Deodorization of crude groundnut oil refining plant machine for edible oil: Deodorization is used to remove unacceptable odors by steam distillation, the odoriferous compound are stripped off with the help of live injected steam into heated oil under high vacuum pressure.
5. Dewaxing (necessary for cold areas) of crude groundnut oil refining plant machine for edible oil
Some kinds of oil like sunflower, maize germ or corn oil have waxes inside, if these impurities are not removed by crude groundnut oil refining plant machine for edible oil, the oil will freeze easily under low temperature, thus effecting oil quality and appearance. so crude groundnut oil refining plant machine for edible oil is necessary in extremely cold areas.
Groundnut Oil Refining Plant Equipment
Basing on the traditional oil refining technology, Zhengzhou LD Grain and Oil Machinery Co.,Ltd has developed the latest combined packing layer plate deodorization soft tower and the physical and chemical mixed refining technology for crude oil of any quality. Moreover, a series of advanced technology and equipment are used, such as super wet deguming, bleaching earth automatic metering, negative pressure decoloring, high vacuum steam jet deodorization, deacidification, winterization dewaxing etc..
Main Processes Introduction
Hydration Deguming & Alkali Refining Deacidification Process
Washing: there is still about 500ppm soap in the neutralized oil from the separator. To remove the remaining soap, add into the oil about 5~8% hot water, with water temperature 3~5 °C higher than the oil generally. Vacuum drying stage: there is still moisture in the oil from the wash separator, and the moisture will affect the stability of the oil. So the oil at 90°C should be sent to vacuum drier to remove the moisture, and then the dehydrated oil goes to the decoloring process. Finally, pump out the dry oil by canned pump.
Continuous Refining Decoloring Process
The main function of decoloring process is to remove oil pigment, residual soap grain and metal ions. Under negative pressure, the mechanical mixing method combined with steam mixing will improve the decoloring effect.
The degummed oil firstly enters into the heater to be heated to the appropriate temperature (110°C), and then goes to the bleaching earth mixing tank. The bleaching earth is delivered from the low bleaching box to the temporary tank by wind. The bleaching earth is added by automatic metering and is interlockingly controlled with the oil.
Continuous Decoloring Process Features:
1. The oil fully contacting with the decolorant can improve the decolorization efficiency and reduce the usage of decolorant;
2. The continuous and uniform material flows will balance the decoloring time and avoid the recovery of grease oxidation and acid value.
3. The special mixing structure of decoloring tower won't cLDe the material dead area, which can avoid the LDorbent sedimentation and pipe blockage.
4. The continuous airtight efficient filtration equipment has realized the automation of cake discharge and reduced the labor intensity.
5. The advanced drying technology can reduce the oil content in filter cake.
Continuous Refining Deodorizing Process
The qualified decolored oil enters into the spiral plate heat exchanger to recover most of the heat, and next goes to high pressure steam heat exchanger to be heated to the process temperature (240-260°C) and then enters the deodorization tower. The upper layer of combined deodorization tower is the packing structure which is mainly used to remove the odor producing components such as free fatty acid (FFA); the bottom layer is the plate tower which is mainly for achieving the hot decoloring effect and reducing the peroxide value of the oil to zero. Oil from the deodorization tower enters into the heat exchanger to recover most of the heat and makes further heat exchange with crude oil, and then is cooled to 80-85°C through the cooler.
Automatic Control System
Our company has applied the automatic control system with advancedness, security, reliability into the pretreatment, extraction, refining and fractionation in large oil plants. For its application in automatic control system, it can control the production in the entire workshop and monitor the operational status of each device by controlling the computer terminals in the room. One person only can operate the entire workshop, with efficient production management. It has reduced the production cost greatly and improved the management efficiency.
Steam consumption |
700KG/T oil |
Electric consumption |
28Kwh/T oil |
Water (soften water) |
150Kg/T oil |
Phosphoric acid |
2~3 kg/T oil |
Alkali |
acid valuex1-3kg/T oil |
Circulating water cooling water yield |
150M3/H |
Bleaching earth consumption |
3-5Kg/T oil |
Waste bleaching earth oil content |
≤25~35% |
Refining losses |
acid valuex1.2 (chemical refining) acid valuex 0.6 (physics refining) |
Bleaching losses |
the quantity of bleaching earth×0.25% |
Deodorization loss consumption |
≤0.5%≤0.5% |
Refining rate |
1-refining consumption |
Our customers
Shandong Microwave Machinery Co.,Ltd.is a Small oil machine factory specializing in the production of crude groundnut oil refining plant machine for edible oil, scientific research,manufacturing,installation, commissioning.Shandong Microwave Machinery Co.,Ltd.can provide Small oil machinecustomers with design and services of 1-2000 tons crude groundnut oil refining plant machine for edible oil. Shandong Microwave Machinery Co.,Ltd. have finished hundreds of successful projects Small oil machineover the years: peanut oil, soybean oil, rapeseed oil, cottonseed oil, sunflower oil, sesame oil, animal oil,grape seed oil, acer truncatum oil, peony seed oil, walnut oil, hemp seed oil, pine oil, tea seed oil, papaya oil, milk thistle seed, and other special type Small oil machineoil. Shandong Microwave Machinery Co.,Ltd. have independent import and export department. Shandong Microwave Machinery Co.,Ltd. Small oil machineequipment has been successfully exported to more than ten countries: Russia, LDtralia, India, Afghanistan, Cameroon,and so on.
Contact us:
Carrie-Sales manager
Shandong Microwave Machinery Co.,Ltd.
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Email: [email protected]
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