OPERATION INSTRUCTION OF "N" SERIES JET RICE MILLING MACHINE

Generality

"N" series of jet rice milling machine is based on several decades rich experences and imported advanced technology from the begainning of eighties. It belongs to cereal processing machines. Its main use is fitting with the rice huller to product whilte rice. It can also made rice of grain by itself only once.
All the machines have blasting device, husks can be separted automatically from site. So the finished production is cleaning , less huskes and low-temperature. The machine can use less-power and give high yield. It owns beautiful appearance and compact construction, too. It is also apt to operate and maintain. It suits the medium and small rice mills in cities and countrysides.
It's its main character that it can made the most ideal white rice of grain only once. The finished rice is bright and clean. It also has low -temperature, less broken rice. The husks can wholly be separated from rice. The machine had characters of high working-efficiency and safing power. Because the husks may be sent from chaff outlet to chaff container to collect and give off by inhale fan, the working environment is improved greatly and dusts are decreased fully. Husks also would be inhaled secondly by inhale fan to get more white and clean ric ewhen white rice flows out.

Key parameters and concerned dimensions

Remarks: selecting N110, customers can ensure to get the output of 1100kg/h in using 11kw motor. If users adopt 13kw or 15kw motor, the output may reach to 1300kg/h, 1500kg/h, but now here will be a few husks in rice. Above all, customers must ensure the specified voltage. Otherwise, the low voltage would decrease the output.

Production flow

Throught a feed hopper, the brown rice(or paddy) enters into machine and flows forward along the main shaft under the function of screwed roller. Because of the function of outlet's pressure, pressure is built up among grain. By the raised redges of the iron-roller, grains are milled each other. Reaching the required grade, rice flows out from the outlet. At the same monment, the high-pressure air produced by the blast fan flows into the milling roon from the gaps of iron-roller through the main shafts's holes. On the hand, it takes away part of heart produced in the process of milling and makes the finished rice more white. On the other hand, it makes the husks go into the chaff hopper.

Main construction and chief diagrams

The chief components are outlet, body, deceleroneter, fans,tension pulley, base, outlet hopper, chaff hopper, chaff container, etc.

Methods and attentions of operation

1. How to adjust the feed-flows
The feed hopper can contain 40kg paddy or so. First, fill the hopper with paddy and start the machine 5 minutes unloadly. Then pull up the insert plate entirely and fix it with a fixed -bolt. Furthermore, turn the adjusting -bolt to adjust the flow, stop adjusting when the flow rises to rated flow.The opening-closing degree of feed slide may be indicated by the painter. (It is ususlly between 2.5 and 5)
2.How to control quality grade of rice
The grade of riceis decided by the tension spring. The spring's pressure may be adjusted by the adjusting-bolt. Customers may adjust the bolt properly to increase or decreasethe outlet's pressure according to the acutual conditions so that the finished rice reached to the necessary grade. Use N80 and N110,N-130A machines, and you would be inhaled into husks. Weak is the wind, ther would be husks in rice. In this case, you can adjust the bolt according to actual conditions so that chaff and rice cna be separated each other absolutely.
3. Operation notes:
1) The machine must be installed on the cement base, and its four legs contact well with the base. To meet the needs of coaxal degree among the shaft and frame, no crank can be stated before tighting foundation bolts. Having no level ground, the shaft will be no-coaxal, such things would happen as remaining grains in rice, having much more broken rice in it and some other problems.
2)Before starting the machine, turn the belt pulley manually, and cleck should not exist. To avoid its relaxation operating, all belts must be tightened again. Serious viberation is not allowed at starting.
3)Close the insert plate, then start the machine. After everything is all right, begin to feed grain, pull up insert palte gradually. At the same timeregulate the pressure of the outlet to make the rice reach required white degree.
4)The outlet end of the screen will be worn quickly, in order to prolong its life time, you can exchange the ends fo outlet and inlet. If you find any leakage of rice, the screen should be replace in time.
5)Often check the bearings to see whether their temperature is below the allowed value, and whether the other devices are all right in operation. If anything is wrong, stop the machine immediately and set out to repair
6)To ensure its yield and quality of rice, the iron roller must be replaced at the right time after it was grinded seriously.
7)Operate in fixed rotational speed, neither too high nor to low
8)The belt must be appropriate readjustment, too relaxed belt will effect the output and quality.
9)The normal voltage is the essential condition of the speicfied out-put and good quality rice.
10)The grain should be clean and properly dry, or the machine will not work well. (the end)