Which is the best complete set of rice milling equipment? Methods for noise control of rice milling equipment

According to people's noise tolerance, the noise of the residential area closest to the production plant during the day should not exceed50 ~ 60 dB  (A)at night should not exceed40 ~ 45 dB  (A).complete sets of rice milling equipment which is good?In fact, around the rice mills of rice processing enterprises1~1.5 mThe noise measured in the range is generally up90 ~ 100decibel(A)and sometimes even up105decibel(A). Therefore, it is necessary for us to effectively control and manage the noise of rice milling machines in rice processing enterprises. The control methods for noise control of rice milling machines are roughly as follows:

White grinding roomof noise control：

For better controlWhite grinding roomnoise, should be consideredWhite grinding roomEquipment, operation and protection of all components for control and management purposes.

(1)In order to ensure the smooth operation of the rice mill and reduce vibration, the level of the rice mill equipment must be checked and the anchor bolts must be tightened. A static balance test must be carried out before using the grinding roller. The method is: put both ends of the sand roller shaft on the calibrated horizontal knife edge ruler or two parallel supports and roll many times. If the direction remains unchanged after each stop, it indicates that the roller is focused on the lower side. At this time, will1 ~ 2Sand roller rolling180degrees, and then adjust the focus of the experiment from scratch. If it is still untreated, a sand roller scraper can be used to scrape off part of the sand surface layer in a specific direction, so balance must be achieved. The use of sand rollers that are concerned about the severity and cannot be corrected in practice should be stopped, otherwise the machine's understanding of the sand roller equipment that is concerned about the severity in production will oscillate violently and even damage the rollers and equipment.

(2)The appearance of the sand roller is uneven, and the sand roller scraper is used for trimming. When finishing the sand roller, the bottom and edge of the groove should be rounded to reduce the damage to the rice grains. When repairing, the sand roller should be installed on the shaft, and the shaft should be above to prevent the sand roller from contacting the ground and damaging the sand surface. During the trimming process, tap lightly, cut quickly, and insist that the groove size is correct.

(3)When rolling the roller device, the ribs or grooves of each roller must be aligned, and the joints should be smooth. When installing the grinding roller, there shall be pad between the grinding roller and the screw conveyor.0.20 ~ 0.5Millimeter thick cardboard to avoid loosening, misalignment and damage of the grinding roller. During the installation process, due to the action of the end pulley, the shaft of the sand roller should be erected on the ground, do not sleep on the ground, and do not install the equipment in the horizontal direction, because it is not easy to tighten and it is easy to wear the sand surface.

(4)If the sand roller has cracks, it is forbidden to use. If the roll surface has obvious potholes and defects, it should be replaced or repaired in time.

(5)When installing the rice sieve, keep the rice sieve flat to avoid the phenomenon of high center at both ends or low center at both ends. The joint of the rice screen shall be flat to avoid overlapping, and reverse overlapping is not allowed. The gap at the joint should not be greater2mmSo as not to make the rice grains make more noise when colliding and crushing.

(6)White grinding roomThe parts and equipment should be flat and smooth, no unevenness. The sieve bars and rice knives should be flat with no sharp edges to prevent damage to the rice grains.(7)When the rice mill is running, a certain amount of brown rice should be left in the hopper, and "broken material", "hanging material" and "empty away" are not allowed ". During the normal operation of the rice mill, it is also necessary to keep the flow stable.

(8)After the shutdown, should always check the sand roller, rice knife, rice sieve and other parts of the wear. If the wear is serious, it should be repaired and replaced in time.

(9)Bearings should be regularly refueled and cleaned, and should always be smooth.