| Customization: | Available |
|---|---|
| After-sales Service: | Lifelong After-Sale Service |
| Warranty: | One Year Warranty |
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Acid(HOKmmg/g) :< 15.0
Impurity(%) :≤ 2.0
Moisture and volatile(%) :≤2.0
3. Plan: Finished oil comply the Chinese standard
4.Technical target
Electric consumption:< 24 kw·h/t oil
Cycle Water consumption: < 15m3/t oil
Soft water :< 180kg/t oil
Accessory consumption:Clay < 3%, phosphoric acid <0.2%
Refiner consumption
L%=1- refining yield% has relation with quality of rude oil and acid value.
5.Description of the Process.
Flowchart
5.2. Description of main Process
The crude palm oil has less hydratable & non-hydratable phosphoric acid and high FFA. So the line is adopted the physical refining method, which is not only much more economical and efficient than chemical refining, but also causes no pollution through waste water and exhaust air.
Explanation:
1) Neutralizer It's used for ridding off acid, degumming.
2) Decolorizer It's used for ridding off/reducing the color of the oil.
3) Deodorizer It's used for ridding off odor of the oil.
4) Transfer oil furence It's used supplying for the heats required to the line, it could make the temperature up to 280 degrees.
5) Air pressurer Blow to dry the Clay for decoloring.
6) Oil filter Clear the oil decolorized.
7) Steam producer Producing steams of high temperater for deodorizer.
1) Neutralizing
There is 2 methods according to adding different quantity alikali and different oil temperature.
One is weak alkali(10-16 Be) and high oil temperature (75 degrees), who is only used for weak colour and low acidity; The other is low temperature(20 degrees orso ) and density alkali(20 Be orso), whose is used more.
A) Low temperature(20 degrees orso ) and density alkali(20 Be orso)
Adjust the tempetature of oil to 20-30degrees, then put alkali water of 20-30 Be into oil within 5-10 mins, mixing and rise temperate for 20- 60 mins. When the temperature of oil rise to 60 degrees orso, to stop adding heats and immobility for 6-8 hrs to out of the soap particle.
B) Weak alkali(10-16 Be) and high oil temperature (75 degrees) (Omission)
C) Washing by water
After be out of the soap paticle from the under of refiner, then continustly adding the heats to 90degrees, then add some hot water to washing the oil, note the temperature of water is higher for 5-10degrees than oil temperature. Then mixing them for 5 mins, then immobility for 4 hrs, put off the soap water, so for 2-3 times which is confirmed as the oil quality.
Oil washed is added heat to 105 degrees orso, to mix then dehydrate for 1 hour, also directly is pumped into decolorizer vessel for dry for 30 mins in the vacuum condition.
2) Decolorizer
Pump the oil netralized into decolorizer vessel, samely mixing to rise its temperature to 90 degrees, then mixing for 30 mins, to reduce water to 0.1%, then put a little clay (decoloring media) 2
4 % of total oil, mixing for 30 mins, to reduce the temperature to 70 degrees, then filte the clay with oil filter, to get the oil decolorized.
3) Deodorizer
Pump the oil decolorized into deodorizer vessel in 755mmHg of vacuum, 240 degrees-260degrees, to distillate for 4hrs wit steams. Then turn off the steams to open the cooler to reduce the temperature to 40-80 degrees, then check a little oil, if ok to pack it.
Degumming and Pre-bleaching Section:
Special Degumming Section
Remove solubility impurity in the crude oil is degumming process. Because phosphoric acid is main part of solubility impurity in the crude oil. In industry, degumming also is named to get rid of phosphoric acid. Before distilling process for physical refinery, remove solubility impurity is a very important step, it can reduce loss in the oil, increase oil quality.
The Crude oil filtered is pumped out from the Buffer Tank. Passing through dosing system, the oil enters into the Heat Exchanger to be Heated up to designed temperature 60ºC. Then go into the mixer vessel for mixing with the the phosphoric aced added via the metering Pump. The mixture flow into the acid reacting vessel for reacting for 15-20mins.
Then separate the gums and oil via one centrifuge. Oil is exchanging heat to 70 degrees and flow into the pre-bleaching process.
Data:
Phosphoric acid (80-85%) 0.05 - 0.2% of crude oil
Working time < 20mins
Steam < 100kg/t crude oil
Pre-Decolorizer Process
the oil degummed is pumped into the decolorizer, samely open the vacuum system to rise its temperature to remove off the moisture firstly.
The clay dosed flow into the mixing tank/clay and oil firstly,, then inhaled into the decolorizer vessel with the vacuum condition, which mixing for 30mins or so under the 110 degrees and vacuum condition, after cooling(the decolorizer vessel has the water coil for cooling oil), the temperature to 70 degrees or so, which flow into the leaf filter for remove off the clay and oil go to the next process.
Note: This process could remove out 40% red color/carotenoids, the more is removed out from the distilling process.
Data: P < 5ppm,Fe ion < 0.1ppm, Cu < 0.01ppm
Distilling Process
Pump the oil decolorized into the distilling vessel in the high vacuum, and 240 degrees -260degrees oil temperature, to distillate for 4hrs.
The FFA would be remove out with the direct steam.
The final oil is out after exchanging between hot oil distilled and oil decolorized.
Note: This process is not only remove out the FFA, but also odor and most of red color / Hot sensitive decolorization.
Fractionation of oils and fats Process
Dry fractionation of oils and fats is the separation of high-melting triglycerides from low-melting triglycerides by crystallization from the melt. Apart from blending, it is the cheapest process in oils and fats processing. It is a pure physical process compared to other chemical modification processes such as hydrogenation and interesterification which modify triglycerides. Dry fractionation is now applied to many kinds of fats: palm oil, anhydrous milk fat, tallow, fish oil, lard, cottonseed oil, sunflower seed oil, palm kernel oil, tallow butter fats, and special fats.
The most important applications are: palm olein used extensively as frying oil, palm super olein as salad oil and frying oil, the palm-mid fraction as component of cocoa butter equivalent, palm kernel stearin as cocoa butter substitute, anhydrous milk fat fractions for bakery and confectionery products, spreadable butter, tallow olein for frying oil and spreads. In this process, the fat is melted and heated to eliminate any crystal memory. The molten fat is cooled down under controlled agitation and cooling conditions to produce crystals nuclei formed by the higher melting triglycerides. Then, nuclei will grow to form crystals of the desired size. When the crystallisation has progressed far enough, the slurry is separated.
The final oil could be separated into 18degrees, 24degrees, 33degrees according to melting degrees.
Transmit hot oil Furnace
The furnace is an organic carrier heating furnace with normal liquid oil for the medium; the fuel could be coal and diesel oil, waste oil. The hot temperature oil pump forcedly convey the hot oil recycle into the using system, realize to transmit the heats indirectly from the furnace to using system.
The important is that the furnace is not high pressure boiler, to reduce the inspecting cost every year.
Main Data:
|
The power of Supporting Heat |
Working Temperature |
Working Pressure |
Valve of Pipe |
Coal/wood Consumption |
Heat Efficiency |
|
3*105kcal/h |
≤340ºC |
≤1MPa |
80mm |
69.5/100kg/h |
≥70% |
Vacuum Pump System
Steam and water jet vacuum pump system for distilling system.
|
Model |
Max Pressure |
Capacity |
Water Pump |
Steam Pressure |
Steam Consumption |
Recycling Cooling Water Required |
|
QSWJ-40 |
3mmHg |
40m3/h |
4kw |
0.3MPa |
35kg/h |
2.8t/h |
Main Projects Scope:
-----30-5000T/D cooking oil seeds pretreatment project
-----30-5000T/D cooking oil seeds extraction project
-----10-500T/D crude cooking oil refining machine
---- 5-200T/D crude oil mill refinery machine
----10-2000T/D edible oil refining machine
----1-200T/D mini cooking oil mill plant
Our Services
Henan Double Elephants Machinery I/E CO.,LTD
A professional collection of research ,design, production and sales of Oil making machine,animal food machine ,extruder machine for pet and snacks,and many other kind of food machine.
Our company has a big manufacturing factory with 40 years rich experiences based on one original machinery started by our government machinery department, we adopts advanced production technology, sophisticated equipment and have won abundant strength after many years of development accumulation.
Our puffed machinery has won the 1999 best national evaluation,and passed the ISO 9001 International Quality Authentication in 2000.More proudly, we have achieved the CE certificate to convenient more European customers.
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