Main process in palm kernel press line:
◆Palm kernel Cleaning : It is used for removing the iron impurities, stone, fiber and others. These impurities are bad for machines, especial for the palm kernel oil expeller.
◆Palm kernel crushing: because the palm kernel is hard and big size, it is required to crush to smaller and even pieces. If once crushing can not reach the requirements, the second crushing is required. Crush palm kernels after softening and drying. The centrifugal crusher breaks nuts and separate palm kernel out completely.
◆ Palm kernel and nuts shell separation. Both dry and wet separations are available. Wet separation is mostly used in palm kernel separation, on basis of difference of relative density of palm kernel and shell.
◆ Palm kernel drying. Fresh kernel contains 20% moisture. Palm kernel has no mildew during transportation and storage while moisture drops below 7%.
◆ Cooking section: It is used for heating and cooking the crushing materials, to make is suitable for pressing, doing like this can help final user get the maximum oil and good quality cakes.
◆ Palm kernel oil pressing. Palm kernel oil pressing processing line is simple with usual oilseeds. The pre-pressing by oil pressing machine can obtain 1/4 palm kernel oil, and residual oil need twice pressing.
◆ Palm kernel Filtering section: after pressing, there are some oil dregs in the crude oil, after clarifying, we need to filter the crude oil to avoid to jam the oil pipes during refining processes.
1. Palm Fruit Reception Station
The FFB of palm oil machine gets into the factory through the weighbridge to weight the raw materials to calculate the production cost. Palm bunch reception process is finished at loading ramp. This loading ramp makes palm fruit unloading, cleaning, storage platforms, adopting all hydraulic segmented discharge.
2. Sterilizing Station
The FFB of palm oil processing machine are discharged into the loading ramp, then transported to sterilizer for sterilization. It uses high temperature to softening the fruit and kill the bacteria, this will increase the moisture content of fruit and separate the fruits easily, so finally it will easy to get oil and separate palm kernel, also avoid the raising of free fatty acid. From picking to sterilization, the time shall not over 24 hours.
3. Threshing Station of Palm Oil Machine
In the sterilizing process of palm oil mill, the palm fruits are softening, through the threshing and screening of thresher to separate the palm fruits and empty fruit bunches(EFB).
4. Empty Bunch Treatment Station
The EFB are stored to be use as fuel or fertilizer, also can be used for other functions.
5. Pressing Station of Palm Oil Processing Machine:
Transport the palm fruits to the digester to mixed and cooked again to separate the palm pulp and nut, then use double screw hydraulic presser to get crude palm oil, which improved the production efficiency greatly.
6. Clarification Station
The pressed CPO of palm oil mill has some water(about 45%-55%) and other impurities, we need to clarify the CPO into dirty oil and clean oil. The clean oil will be dried then transported to crude oil tank, while the dirty oil will through centrifuge for recovery.
7. Oil Tank and Oil Loading Shed
Store the crude palm oil and ready to load the oil to other places.
8. Depericarping Station of Palm Oil Machine :
The pressed palm fiber cake gets into the cake breaker then get into the winnowing system to separate the fiber and nut.
9. Kernel Recovery System
Then nut will be crushed to get shell and kernel. Through winnowing system and washing system to separate the shell and kernel. The shell can be used as fuel for boiler, the kernel will be dried for storage.
10. Boiler House of Palm Oil Processing Machine:
In the whole production process, it will need much steam to cooking and softening the palm fruits. The boiler has features of high heat efficiency, reliable working, high over-load capacity, wide application, etc.
11. Power House of Palm Oil Machine:
Adopts diesel engine generator and steam-turbine generator to provide power to production and life using electricity.
12. Water Supply and Treatment (Including boiler water treatment)
Through the processes of settling, filtration, medicals feeding, to ensure the quality of water, and also the quality of oil.
13. Effluent Treatment Plant
The effluent has high content organic matters, BOD (biochemical oxygen demand) is about 25000PPM, it needs to be processed into qualified water then can discharge. Now the impounding reservoir effluent processing system is the most using and effective method. This kind processing system of palm oil mill is very economic.
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