The four major factors that affect the color selection effect of the large beige color sorting machine
The selection method of large beige color sorting machine is introduced above, which is the precondition for the use of color sorting machine. In the process of using the big beige color sorting machine, in addition to considering the color sorting machine itself, the effect of color sorting process is affected by many other factors, such as the amount of bran in rice, the content of rice heterochromatic particles, the temperature of raw rice and the quality of air source. This paper introduces the influence of the above four factors on the color separation process.(1) the bran content of raw rice. When the raw rice contains more bran, under the condition of appropriate water and temperature, it is easy to scale in the channel of color selecting machine after a period of time, which affects the flow of rice grains. In addition, the concentration of dust in the separation room is too high, which will affect the recognition ability of the electric eye and the work of the injection valve, thus reducing the accuracy of color separation. Therefore, it is required that the rice entering the color sorting machine has a smooth surface, less bran and good fluidity.
(2) the content of heterochromatic grains in raw rice. It is generally required that the content of heterochromic granule in raw rice does not exceed the calibration range of the color separation machine. At this time, the color separation accuracy, take-out ratio and output can reach the standard. When the content of heterocolor exceeds the normal range, to ensure a certain accuracy of color selection and take out ratio, the output must be reduced, so that the unit processing cost is greatly increased; On the contrary, in order to meet the requirements of production, the accuracy of color selection is bound to decrease, and the carrying out ratio is bound to increase, thus affecting the quality of finished products and the rice yield.
(3) temperature of raw rice. After being whitened and polished by multiple machines, rice, because its temperature is higher than normal rice temperature, such as immediately entering the color separation machine, is easy to make the rice surface bran powder adhere to the channel surface, affect the normal flow of rice grains, reduce the color separation effect.
(4) air source quality. The sorting device of the color separator is to use high pressure air to blow the colored rice grains out of the normal track. The quality of high pressure air will affect the precision of color selecting machine and the ratio of taking out. The gas source requires no oil, no water, no dust, dry and stable pressure, otherwise it is easy to block the gas path and injection valve, affect the sensitivity of the injection valve action, and easy