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Maintenance and adjustment of small rice mills
- Aug 30, 2018 -

First, the adjustment of the rice knife Adjusting the meter is to adjust the gap between the meter and the roller. If the gap is large, the pressure of the whitening chamber is small, and the friction of the rice in the drum is weak, so that the rice cannot be milled, but the rice yield is high.

 Second, the adjustment of the entrance and exit knives When the imported knives are opened and the exit knives are closed, the grain in the whitening room increases, and the pressure increases and the beige is white, but the broken rice is more; on the contrary, if the imported knives are closed and the exit knives are opened, The whitening room has less rice, the pressure is reduced, and the milled rice is rougher.

Third, specific operational adjustment measures: (1) The adjustment gap of the rice knife and the drum should be moderate, and the gap should not be smaller than the transverse diameter of the rice grain. Otherwise, the rice grain is easily broken; the gap cannot be larger than the longitudinal diameter of the rice grain, otherwise the rice grain is rough. Therefore, the rice knife gap should be chosen between the longitudinal and transverse diameters of the rice grain. Generally, when actually adjusting the gap of the rice knife, there must be a little oblique angle, that is, a little larger near the end of the exit knife, so that the milled rice is more complete. (2) The inlet and outlet knives should be closely coordinated with each other. Generally, the opening degree of the imported knife can be controlled to 1/2 of the entire opening degree, and the maximum is not more than 2/3. In the process of rice milling, generally do not remove the imported knives, so that the imports are all open, because the imported knives are all open, the grain is accumulated too much, the pressure of the whitening chamber is too high, the rotation resistance is large, if the exit knives are not there for a while When combined, the drive belt will slip and even the machine will get stuck or damaged. The exit knife should be flexibly mastered. In operation, the meter knife gap and the opening degree of the inlet knife can be fixed after being adjusted according to the regulations. Generally, as long as the operator uses the right hand to operate the exit knife, the left palm is terminated at the exit. Rice grain, observe whether the rice grain is intact and whether the beige color is white. If there are many broken rice, you can open a large exit knife; if the rice is rough, you can close the small exit knife. During the rice milling process. Take care of both, until the quality of the milled rice meets the requirements.

Fourth, maintenance matters. (1) The rice processed by the rice milling machine should maintain a certain degree of dryness, and the general moisture content should not be greater than 14%-15%. When the moisture content of rice is too high, the rice grains are broken, affecting the quality of rice, and the power consumption is also increasing. (2) Pay attention to check whether there are nails, stones and other debris in the rice, so as not to enter the whitening chamber to cause blockage or damage to the rice sieve. (3) Before starting the machine, check the machine parts such as rice screen, rice knife and roller core to see if the bolts and nuts are tight. (4) Turn the roller before starting to check if there is a jam. (5) When starting the machine, first run the air load to the normal speed, then pour the rice into the hopper, and pay attention to the operation of the rice milling machine at any time. (6) After the daily work, check the rice mill and supporting facilities, and find out the problems in time to ensure that the rice mill is always in good condition.