Deacidification of palm oil refining machine :This part adopt alkali refining method, that is use alkalis lLD (NaOH) to neutral the free fatty acid in oil, during this process it will produce soapstock , then separated from the oil by setting several hours. NAOH solution, not only neutral free fatty acid, also can act with other matters lLD protein, mucus, phospholipid, pigment. After settling, release the soapstock from the tank bottom. Adding hot water to rinse, remove off the leftover lye , soap and some unhydrated phospholipid in the oil. Finally pumping out soapstock from the tank bottom.
In normal situation , there is pigment in the crude oil , we need to using the active clay to absorb thepigment away , after 20 mins , we use the vibrating filter to filter the waste clay away . If you want to get ligLD color oil , you need to add more active clay . That is mean , the customer can accord to hisrequirement to control the oil color. This process is carried out under the vacuum condition.
Deodorization and Dehydration of palm oil refining machine :Usually ,there are some odors in the crude oil , it affects the quality of the edible oil . About our refining process , we usually use the direct steam to take odors away in the vacuum condition . General speaking there is about 0.5% water in the alkali refined oil, in the deodorization pot, thetemperature is very high , it also can finish the dehydration section.
peanut oil production line with CE
Coconut oil is mainly produced by the production of dried coconut oil, in order to 20t/d the size of large screw press squeeze the coconut stem, the production of coconut oil as a conventional process for analysis.
, coconut processing dry 20t scale mechanical crushing process of main equipment: 1 5.5kwSFSP40 x 37 hammer mill, a 22KW YYPT40 X of 80 rolling billet machine, a 18.5kw ZCL1500 5 x steaming wok, 2 sets of 18.5KW200A-3 screw press, a 1.1KWCYG-200 x 800 Cheng tank, a centrifugal sludge separator. 5 1.5 kW chain lifting machine, a belt of 2.2kw TDSL50 conveyor.
The main technical parameters and process:
(1) coconut stem conveying coconut dry ingredients for bulk solids, should not use the hoisting machine conveying; small scraper conveyor because imports are too small to feed poor, is not suitable for, higher cost of scraper conveyor of much uneconomical, hence the choice of the belt conveyor, the inclination angle shall not be more than 30 degrees, otherwise easy to fall. Before crushing conveying device, installation of iron removing device to prevent metal material processing equipment failure, but also to ensure quality of coconut oil cake.
(2) broken coconut dry copra and dried to obtain a tough texture of the bulk solid, block large amounted to 180cm x 100mm x 6mm. Therefore, we should first solve the problem of coconut stem broken, selection of hammer crusher and screen size increases, reducing the number of hammer, hammer uniform crossover arrangement. Copra is high oil bearing seeds, after crushing conveying the material selection of chain hoist. Also because of the high degree of powder, the import and feed nozzle easily assembled or even blocked. Therefore, the inlet and outlet pipe on the observation window, in order to observe and dredging.
To improve yield reduced powders and the degree and prevent material jam, feed is too slow and the feeding mouth spray powder, the impact of environmental health workshop and in the process take two pieces: first broken, the hammer mill, remove sieve sheet; and the second crushing molding by 703 cake breaking machine combination.
(3) rolling billet coconut is a high oil bearing seeds, rolling distance is too small, easily out of oil, also by crushing and conveying, grease has infiltrated in the material surface, easy to agglomerate sticky and, resulting in roll feeding difficulties or even blocked; coconut dry hard, toughness, low density, rolling distance is too small, material will in the middle of the two roller heap. Therefore, copra billet is different to other bulk oil, the rolling gap is bigger, about 3 ~ 4.5mm, avoid the powder of high, roll sticking and cutting poor cause the clogging phenomenon.
(4) steaming and stir frying due to steaming and frying pan continuous stirred, dried coconut easily steaming and stir frying pot out of the oil, along the principal axes dripping oil, resulting in waste and workshop environment pollution; and material is easy to agglomerate, to transport difficult. Solution: reduce the degree of powder materials, reduce the mixing time, always clean up the steaming and frying pan feeding nozzle and hoist discharging nozzle, to prevent the material assembled. Steam pressure: 0.6MPa indirect steam: opened the third, four, five layers of wok steam steaming and frying time: 30 ~ 40min the temperature of the material: 100 DEG C steam directly to off
(5) oil due to dry material performance of crushed coconut oil is different from the general, not feeding routine may, no cake, the cage is out of the oil segment out of oil and other issues, so need to adjust the pressing bar clearance. Press dried coconut materials, pressing bar clearance should be small, improve material evaporation fried condition, to feed normally, the oil is mainly in the second section, third section. It is noteworthy that feed at the beginning, the pressing chamber temperature hasn't come up before, into the press bore the material flow is not large, otherwise very easily in the feed at the formation of a thin paste, so that a cake or poor sintering the main component of spiral oil press. Coconut cake: 4.84% moisture, 7.47% fat, 22.89% crude protein, 29.15% carbohydrates, crude fiber 8.53%, ash 6.82%, CA 0.16%, P 0.55%, 0.23% mg, potassium 1.75%, copper zinc 53mg/kg, t 40mg/kg, 75mg/kg. 0.6Mpa manganese vapor pressure: indirect steam: open steam Cooking time: 20 ~ 30min into pressing temperature: 115 ~ 120 DEG C direct steam: closed cake thickness: 6 ~ 8mm loaves of bread in residual oil:
Dry (6) Cheng oil and filter coconut fiber volume larger, so the crude oil containing more slag containing, to reduce filter burden, in the process set a Cheng oil process, the sludge directly back to the press and oil press, Cheng tank scraper line speed for 3.73mm/s.
The content of free fatty acid crude coconut oil is higher than the general oil, business rules of free fatty acids in the most advanced coconut oil shall not be higher than 3%, free fatty acid content of most crude coconut oil in 5%. Crude oil free fatty acid production in the process of pressing was 3.8%, although higher crude coconut fatty acid oil, coconut oil, but not saturated is low, it is not easy to rancidity. In addition, Crude Coconut oil melting point is 19 to 22 DEG C, so the general coconut at room temperature will solidify the oil, coconut oil for the storage and transportation of trouble. Therefore, the heating device is arranged in the oil tank, to anti coagulation coconut oil could not put, also installed a heating device in the filter pool. But it should be noted that, in order to prevent the phenomenon caused by a local temperature is too high, must control the heating temperature. Will clarify the coconut oil through the filter, get the LD coconut Crude oil.
Coconut crude oil test results: moisture and impurity 0.2% acid value 7.6mgKOH/g color (13.335cm groove R10, Y40, saponification value 262.6mgKOH/g.
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