Rice bran oil mill plant | complete rice bran oil extraction machine
pretreatment aims to clean the rice bran and ajust the temperature and moisture and take expansion to make it at the best condition to extract the oil.
process flow: rice bran → cleanning →tempering →puffing →drying →extraction
Cleaning: Temperature 65-75"C
Puffing:raw materials must be continuous
moisture when out of puffing machine could be down to 14%
Drying and cooling: moisture 7-9%
2.Extraction of rice bran oil mill plant | complete rice bran oil extraction machine
we use proven way,the solvent extraction method to remove the oil from the flakes.
we add solvent into the flakes let them mixed for enought time.the vegetable oil will dissolve into the solvent.then we get mixed oil which contains both oil and solvent together and wet meal which contails solvent too. for energy saving purpose we will recycle use the solvent in the mixed oil and wet meals.for mixed oil,after the two times evaporation and gas stripping,the solvent will evaporate completely.and after desolventizing,the solvent from the wet meal would also be separated too. then the solvent steam would be condensed for recycle use.
the advantages of solvent extraction compared to the pressing way is
1.the oil yield is high,low oil waste. the residure could be less than 1%.
2.the oil purity is high, little harm matters
products of solvent extraction is product meal and crude oil.
the product oil could be selled to factories and other farmers for animal feed
the crude oil could be used for further refinery or for sale.
3.Refinery of Rice bran oil mill plant | complete rice bran oil extraction machine
process :deguming-------deacidification-------filtration------deodorization----dewaxing----product oil
the deacidification is very important for vegetable oil refining.
it usally is chemical way or physical way.
chemical way deacidification:
Add in a certain concentration of NAOH which will neutralize the FFA. The FFA will subside in the way of soapstock. some impurities will also centrifugal separated with the soapstock. The advantage of chemical way is deacidification thoroughly and the quality of the oil is stable. The disadvantage is oil loss. The FFA content is higher; the oil loss is bigger.
it is in the Rice bran oil mill plant | rice bran oil making machine condition, let the steam bring out FFA,unsaponifiables, odorants. In this process, No soapstaock produced, and the quality of FFA is high, some heat sensitive pigment like carotene and odorants will be removed too. The operation is easy and the quantity is large. Also the oil loss is small and no environmentalpollution. Compared to the chemical way, it has its disadvantages too, for physical way refining, the pretreatment of the crude oil is strict, it is not suitable for cotton seed oil which is heat sensitive. And in the high temperature, the oil will produce polymer. The physical way refining is only suitable for good quality crude oil deacidification and it requires strict pretreatment sometimes even decoloration of the crude oil.
Process of deacidification:
In neutralization which means deacidification process, the oil at a proper temperature is added in proper concertration of lye, goes into centrifugal mixer. For best mixing, the mixture is sent into neutralization tank and stay for enough time. During this period, the lye will neutralize the FFA, form soapstock and are separated in neutralization separator. The formed soap stock also can absorb other impurities and pigments. To separate the oil and soapstock more easily, the mixture would be heated, to reduce the viscosity.
The neutralized oil from the neutralization separator, still contain about 500ppm soap. to reduce the soap content, the oil would be added into about 15% hot water and to wash in the washing mixer. The hot water will absorb the soap and other impurities, then are separated in the washing separator
3.Rice bran oil mill plant | rice bran oil making machine-drying and dewatering
The oil from the washing separator still contains some water which is harm to oil stability. To remove this part water, the oil at a temperature of 110-120”C, are sent into Rice bran oil mill plant | rice bran oil making machine drying tower to dry the water. After this the oil will be pumped into decoloration process.
Process of decoloration
decoloration aims to remove the pigment and The residual soap etc. it includes:
The oil firstly should be heated to 105”C.The heated oil then is sent to Rice bran oil mill plant | rice bran oil making machine bleaching tower. when the oil goes into the bleaching tower, it mixed with white clay via ratio mixer.
White clay transportation system is used to send the white clay on the ground to the storage tank on the top of bleaching tower.
The bleaching tower are divided into several floors, every floor is equipped with steam ejector which used to mix the oil and white clay. The rest soap, gum, pigment and other metal would be absorbed by the white clay too.
the mixed oil from bleaching tower would be pumped into the filter, and then goes into the secondary filter, here white clay and the solid impurities would be stopped, the bleached oil would be transferred to bleached oil storage for middle storage.
In this filtration system, there are 2 decolorizing filters, always one in filtering and another is emptying and cleaning. When the filter are in emptying and cleaning condition, the filter would be squeezed by steam, so most oil in the filter would be swept into bleaching oil tank, few oil mixed with waste white clay is sent into dirty oil tank. The filter cake have been dried by steam, the leftover oil and water gathered during the drying period are sent into the dirty oil tank too. Finally the dried cake on the bottom of the filter was poured into waste clay room via bleed valve by air vibrator.
The leftover oil in the dirty oil tank would be pumped into bleaching tower for reworking.
The deodorizing aims to remove the FFA,small molecular substances,including
The bleached oil are stored in bleached oil tank, this tank are designed to work in Rice bran oil mill plant | rice bran oil making machine condition. From this tank, the bleached oil is pumped into deaerator, to release the gas into the oil.
The flow of the bleached oil is controlled by a controller, the oil is heated at a temperature of 250-260”c by a series of heat exchanger.
When the oil is heating in the final oil heater, here some low- boilling point FFA and volatiles would evaporate. The steam and liquid oil would go into the packing deodorizing tower from different entrances.
The heated oil would be distilled in the flashing tower, storage tank and main deodorizing tower, the FFA and smell matters would be removed aftergasification
Henan Doing Mechancial Equipment Co., Ltd is one Rice bran oil mill plant | rice bran oil making machine producer of oil equipment in China. We are specialized in edible oil making machine for 40 years. Our company have special engineers for palm oil processing machine and palm oil mill machine. They are reseaching and developing the technology.
We have advanced processing equipments and scientific management system. The products have gained many achievements and awards. Our machines have been exported to Congo, Urganda, Uzbekistan, Kazakhstan, Cananda, Chile, Argentina, Ethiopia, Zambia, Nigeria, Russia, Turkey and so on.
Packaging & Shipping
Delivery of our cooking oil machine:
Each cooking oil machine is well packed by thin films.
Use iron case or iron pallet to fix the machine strongly.
All goods are ensured to arrive on time based on sales order requirements.
1. Professional solution design, high quality machines, competitive prie.
2. Consult and answer all your questions within 24 hours.
3. Factory layout design according to your requirement.
4. Formulation available.
5. Fast delivery:15 working days for single machine/40 working days for complete line
6. Professional engineer, overseas installation and commissioning, training.
7. Warranty: 1 years
8. Service life long technical support
Some FAQs for our cooking oil machines line:
1. Q: Are you a trading company or a manufacturer ?
A: We are a manufacturer, which has long experience in this industry.
2. Q: How can I get to your company ?
A: You can get a flight to Rice bran oil mill plant | rice bran oil making machine Airport. We are just about 40- 50mins away from Rice bran oil mill plant | rice bran oil making machine Airport.
3. Q: How long is your guarantee ?
A: One year(Calculated from the equipment arrives the customer’s side.). After this period we will definitely support you when needed. You will be welcome to contact us with any problem may happened.
4. Q: Will you send engineers to install the plant?
A: yes, but at an extra cost payable by the customer. Or you can get local contractors to do the commissioning and we send one supervising engineer.
Were one of the main manufacturers and suppliers of a range of and spares needed for oil extraction plants. Currently a wide range of Rice bran oil mill plant | rice bran oil making machine including expellers, seed cleaners, decordicator, copra cutter, filter press, Boilers, Hammer Mill etc. A lot of can be employed in the whole oil extraction plant. Our oil extraction machine is fabricated with the most up-to-date extraction technology and premium quality raw materials, our Rice bran oil mill plant | rice bran oil making machine are be applied on your extraction of oils. This ensure higher production without any breakdown. The is proper for a number of seeds and nuts like Sesame Seeds, Sunflower, Palm Kernel,Cocoa,Coconut,Castor,Cotton Seed,Almond, Apricot (Germ) etc.
We believe that regardless of the oil extraction plant is, quality could be the heart of company's performance. We treat quality & service as a means of life. As soon as you prefer to know more details about our oil processing plants, write to us now!
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