Before starting the rice milling machine, check whether the rice sieve, rice knife, drum core, machine cover, etc. are damaged, whether they are installed, whether the bolts and nuts of each part are tightened, whether the bearings are lack of lubricating oil, and whether the rotation direction of the rice roller is consistent with the regulations. The direction is the same, and all safety shields are installed in place.
Pay attention to check whether there are iron nails, stones and other debris in the rice, so as to avoid clogging or damage to the rice sieve when entering the whitening room.
Turn the main shaft (drum) before starting the rice mill to check whether it is stuck. After starting the machine, it should run idly for 5-10 minutes to check whether the steering of the main shaft is consistent with the specified steering sign and whether there is any abnormal sound. After confirming that everything is normal, the load can be started; pour the grain into it, and always pay attention to the operation of the rice mill. Turning situation.
When working under load, the operation should be carried out in strict accordance with the requirements of the operation manual of the combined rice milling machine. When the feed switch is turned on, the feed should be gradually fed and adjusted according to the variety of raw materials and the precision of the processed finished rice.
It must work at the specified speed, and the spindle speed cannot be increased at will. If abnormal conditions are found, it must be stopped immediately for inspection, and it is strictly forbidden to eliminate the fault when the machine is running.
The machine should be grounded to prevent electric shock.
Preparations before the rice combined rice milling machine is turned on:
Check whether the equipment in each part is normal and whether there is any looseness at each connection.
Check whether the belt pulleys of each machine are running flexibly and whether there is any rubbing phenomenon.
Whether the round hole sieve of the equipment is blocked.
Check whether there is any blockage in the feeding port and feeding port pipeline, and whether the water conservancy gate is closed.
Check the lubrication condition of each rotating part. When all parts are in normal condition, it can be started. Pay attention to the short-term empty operation first, and then start the production and processing when the equipment is running stably and everything is normal.
The raw grain addition silo with accurate weighing is started first, and then the water conservancy gate of the feed inlet is opened, and the actual operation is fast, so that the precision of the finished product exceeds the specified limit. The actual operation time does not exceed 5min. The finished products with slightly lower precision at the beginning will be returned to the machine after the third sampling, and all raw grains are required to be milled. Turn off the rice mill after the rice mill has stopped producing rice.
Amount of current, working voltage and speed ratio
After the test starts, measure the current and working voltage every 5 minutes; after the test is normal, measure the speed ratio twice in each test and record it.
Time and electromagnetic energy usage
The water conservancy gate of the feed inlet is opened, and the countdown has just begun. At the moment when all the raw grains are based on the water conservancy gate of the feed inlet, the countdown is over. In addition, the first and last readings of the single-phase electric meter of the relative time are recorded.
Mi Win
Use some thermometers to measure the temperature of the raw grain and 50 minutes after the start of the test, and measure the temperature of the finished product in the finished product basket.
Rolling bearing temperature
Use some thermometers to measure the surface temperature of the rolling bearing housing at the beginning of the test and at the end of the test.
Dust concentration standard
The measurement is carried out in the room. 10 minutes after the start of the test, use a dust sampler to select 2 measurement points within the scope of the operator's thematic activities of the feeding station and the chaff collection station to carry out sampling, and measure the dust concentration standard. The level of the measuring point is 1m away from the surface of the generator set and 1.5m away from the road surface aspect ratio.
noise
During the measurement, the level of the microphone of the noise meter is 1m away from the surface of the equipment, and the height-to-width ratio is 1.5m away from the road surface. The four points of front, rear, left and right are measured.