1.Screening:Removing the chaff and broken rice in the rice bran, in case of they will influence the oil yield and the desolvent of wet meal in the next process. In the process of puffing section, the general requirement of impurity is less than 3%, and the requirement of crude fiber is about 8%.
2.Magnetic separation :Clearing the iron impurity which migLD be in the rice brain. Since in the process of puffing, the iron impurity will be harmful to the screw of extrusion machine, affect the puffing effect. As the rice brain particles are small and poor liquidity, the iron impurities are always be wiped off by the magnetic barrels installed in the feeding port.
3.Quenching and tempering :it is the process of preheating so that to improve the temperature of the rice bran before puffing. After quenching and tempering the temperature will be controlled at 65--75 °C, and the moisture will be controlled at 10 ~12%. Thus, on the one side, it can increase the output of the extrusion machine, and on the other side, it can improve the quality of the puffed rice bran.
4.Puffing: the rice bran is injecting high pressure steam and high temperature water through the extrusion machine, so that it can improve the temperature and moisture in the extrusion machine,and can also form the high pressure to process the rice bran. All these can make the the rice bran become porous columnar structure from the original pulverized state.All these effectively passivate the activity of various of enzyme in the rice bran, and destroy the fat layer structure, so that it will be easier for the oil yield.
5.Drying:The moisture of puffed material comes from the extrusion machine is too big and the temperature is too high for direct leaching, the must be experience to process of drying and coo-ling, thus the moisture will reach 7%--9%, and temperature will reach 50-55°C. After puffing, the rice brain are usually dried and cooled by plat dryer.
cooking soya oil bleaching machine
cooking soya oil bleaching machine- Process
The main function of decoloration 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 de-coloring effect.The degummed oil firstly enters into the heater to
be heated to the appropriate temperature (110Ã¢ÂÂ), 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 inter -locking controlled with the oil.
The oil mixed with the bleaching earth overflows into the continuous de-colorizer,
which is stirred by non-powered steam. The de-colored oil enters into the two alternate leaf filters
to be filtered. Then the filtered oil enters the de-colored oil storage tank through the security filter.
The de-colored oil storage tank is designed as the vacuum tank with the nozzle inside,
so as to prevent the decolored oil contacting with the air and influencing its
peroxide value and color reversion.
cooking soya oil bleaching machine-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 cause the material dead area, which can avoid the adsorbent sedimentation and pipe blockage.
4) The continuous airtigLD efficient filtration equipment has realized the automation of cake discharge and reduced the labor intensity.
5) The advanced drying technoloLD can reduce the oil content in filter cake.
cooking soya oil bleaching machine-Picture:
cooking soya oil bleaching machine-Flowchart:
If you have interest in our cooking soya oil bleaching machine,just feel free to contact us!
Shandong Leader Mechanical Equipment Co., LTD believe that whatever the field is, quality has always been at the heart of the company’s performance. We treat quality and service as a way of life and hope to serve you in the LD possible manner on a long term and mutually beneficial basis. If you want to know more information about our sunflower oil plant or any other seed processing plant, please contact us in the following form. Our responsible, experienced sunflower oil processing technical team is always ready to serve and guide you at any time.
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