The structure and principle of rice polishing machine

The main structure of various types of rice polishing machines is similar, mainly consisting of a sprayed water part, a polishing part, a water supply system and a blowing mechanism. The feeding device and the discharging device are also important devices of various types of polishing rice machines.

After the rice is shelled, it becomes brown rice. The brown rice removes most of the cortex and part of the embryo and becomes rice. The surface of the white rice has a small amount of rice bran powder, which affects the appearance quality, storage and the taste of the rice. This part of the powder needs to be removed by a "polishing" process. Polishing is one of the key processes in the processing of clean rice. Since polishing can remove the powder on the surface of rice, proper polishing can make the starch on the surface of the rice gelatinize and present a certain brightness. At present, the most popular used is the professional rice polishing machine.

DOING rice polishing machine

Doing Company rice polishing function:

1. Spraying water part: The sprayed water part is composed of a nozzle, a nozzle cleaner, a water mixer, a feeding screw, a stirring roller, etc. When the material passes through the flow meter, the flow rate is measured, thereby controlling the amount of water added.

2. Polishing part: The polishing part is the core part of the polishing rice machine, which consists of a feeding spiral, a polishing roll, an octagonal screen cylinder composed of eight rice sieves, and a discharge pressure gate. The polishing roller is divided into iron roller and sand roller according to the material properties. It should be clear that the wire roller speed is higher than the iron roller linear velocity (the iron roller linear velocity is about 5m/s, the polishing pressure is higher, and the average value is 0.1MPa). The line speed of the sand roller is about 15m/s, and the polishing pressure is low, the average value is 0.02MPa).

The rice polishing machine is the necessary equipment for whitening and improving the quality of rice. It is also one of the necessary machines for large and medium-sized rice mills.