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The white single-roll water Rice Polisher(LIANGGONG) machine is novel in design, beautiful in appearance, adopts advanced foreign technology, and automatically adds water thermostat. The surface of the polished rice after polishing is smooth and translucent, which can greatly improve the commodity value of rice. The polished rice has high precision and less broken rice. The indicators have reached the international advanced level and are the upgraded products of modern rice processing. It can be used separately for process matching and deep processing of rice.

White single-roll water rice polisher machine features

1. The automatic watering thermostat and multi-position spray device polished the surface of the rice to be smooth and translucent. Greatly increased the value of rice products.

2. The design is novel, the shape is beautiful, the operation is convenient, and the mechanical performance is stable and reliable.

3. For the shape, length, moisture, quality of rice, stable different polishing schemes, improve the professional performance of the polishing machine.

4. Increase the commercial value of rice and extend the shelf life of rice.

5. Built-in single-roll polishing machine has the characteristics of small footprint and convenient installation and operation.

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Analyze the working principle of Rice Whitener(LIANGGONG)

After entering the pulverizing chamber through the flow regulating mechanism, the brown rice is sent to the sanding roller by the screw head and spirally advanced along the surface of the sanding roller. The sharp sand blade on the surface of the corundum sanding roller is rotated at a certain line speed to grind the brown rice cortex. The rice grains and the rice grains, the rice grains and the rice sieves are rubbed against each other to make them rough and white, and at the same time, the sputum powder is forced out of the rice grains by the air blowing action, and the sieve holes are discharged.

Rice whitener structure

The rice whitener machine is mainly composed of a feeding device, a whitening chamber, a discharging device, a transmission device, a spray system and the like.

The gap between the rice knife and the drum should be moderate, and the gap should not be smaller than the transverse diameter of the rice. Otherwise, the rice grains are easily broken; the gap cannot be larger than the longitudinal diameter of the rice grains, otherwise the rice grains are rough. Therefore, the rice knife gap should be selected between the longitudinal and transverse diameters of the rice grain; practice has shown that the rice knife gap should have a slight angle, that is, a little larger near the end of the exit knife, so that the milled rice is more complete.

The inlet and outlet knives should be well matched. When the imported knives are wide open and the exit knives are closed, the grain in the whitening room increases, the pressure increases, and the beige is white, but the broken rice is more; on the contrary, if the imported knives are closed, the exit knives are opened. The whitening room has less rice, the pressure is lower, and the milled rice is rougher.

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. Some old operators remove the imported knives and let the imports be open. Generally, do not do this. Because all the grains are too much after opening, the pressure in the whitening chamber is too large, and the rotation resistance is large. If the outlet knife does not fit well at the moment, the belt will slip, and even the machine will be 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. As long as the operator operates the exit knife with his right hand, the left hand extends out of the palm and connects the rice at the lower end of the outlet to see if the rice is whole and the beige 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. Take care of both, until the quality of the rice mill meets the requirements.

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Rural for Rice Whitener(LIANGGONG) machine need to apply for a business license.

1. Documents and certificates to be submitted for the registration of individual industrial and commercial households:

(1) The application for individual business registration signed by the applicant (fill in the self-employed application opening registration form);

(2) Proof of the employees (the local government personnel must submit the household registration certificate, including the household registration booklet and ID card, as well as the relevant certificates of various unemployed persons such as retired; other provinces and municipalities must submit their ID cards and local Temporary residence permit, women of childbearing age must also submit proof of family planning;

(3) Certificate of business premises;

(4) Proof of the relationship between family-run family members;

(5) Name pre-approval notice;

(6) Relevant special certificates that should be submitted in accordance with regulations, rules and policies.

2. If you operate pre-projects such as pesticides, food, hazardous chemicals, catering, special breeding, cigarettes, etc., you must first register the name and then apply for these pre-licensing licenses, and then copy the pre-license (you need to check the original). Handling business licenses; Large-scale business premises, such as shopping malls and hotels, should also submit fire-fighting opinions; personnel outside the county (district) should also submit a floating population plan.

Note: The business license can be handled by the local management department. Due to the different conditions in different places, the specific regulations are subject to local regulations.

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The Rice Whitener(LIANGGONG) machine is a kind of grain processing machinery for removing brown rice (cortex and germ) from brown rice and grinding it into white rice. The main working part is a whitening chamber formed by a rotating roller and a steel plate punched by a steel plate on the periphery. The brown rice is discharged from the rice outlet after removing the enamel layer in the whitening chamber, and the rice bran is discharged through the sieve hole of the rice sieve. The feeding amount of the feeding mechanism, the gap between the whitening chamber and the pressure can be adjusted, and the rice sieves of different hole shapes and sizes can be used to adapt to different needs. There is a pressure gate or gate at the outlet to control the size of the rice noodle and can be adjusted to obtain different grinding precision and flow.

1. The rice whitener is clogged and the output is reduced. The main reason is that the feed amount is too large, the discharge port pressure is too large or the discharge port is too small; the discharge port is blocked by the rice bran, which may be caused by the belt slippage, the roller wear or the rice knife wear; the raw material moisture is too high or the spiral head Wear and loose.

2, rice bran contains rice, too much broken rice. The main reason: the rice sieve is damaged or the joint seam is too large; the conveying head and the sanding roller joint are not flat, the surface of the sanding roller is not smooth; the rice machine outlet is not smooth; the rice knife is too thick, the distance between the roller and the rice knife is too small; the rotation speed is unstable.

3, the current sudden increase. The main reason is: the feed inlet is broken, the pressure gate is out of order, the rice sieve is broken, the rice sieve bracket is broken; the foreign matter entering the machine or the feed amount is too large; the outlet pressure door is out of order, the rice sieve is blocked, the rice is not smooth; Or the manifold is blocked; the power is out of phase.

4, the accuracy of the fuselage decreased, uneven white. The main reason: the rice knife is worn; the feed is too small or the discharge pressure is too small.

5, the body vibration is large, the bearing is hot. The main reason: the shaft or pulley is unbalanced; the anchor bolts are loose; the bearing is filled with too much oil or lack of oil; the lubricating oil is too dirty.

6, there is abnormal smell. The main reason: the roller is loose or broken; the foreign object is dropped inside the machine; the bearing and the seat are damaged; the belt is slipping; the nut is loose.

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When the rotary Rice Whitener(LIANGGONG) equipment is idling, the force and rotation of the motor are transmitted to the main shaft through the V-belt, which drives the roller to run, and at the same time, through the flat belt, the worm gear and the gear transmission, the rice sieve is rotated at a low speed, and its rotation speed is ns. It is 2.4 to 5 laps per second.

When the rice whitener starts to work, it has become a flexible carrier for force transmission because the whitening chamber is filled with rice grains. At this time, the force energy and rotation of the motor are transmitted to the roller through the V-belt to complete the rice milling function, and at the same time, the rice sieve is accelerated by the flexible carrier for the rotary motion; however, the roller shaft passes through the flat tape, the worm gear and the The gear pair is transmitted to the rice screen for a fixed reduction ratio, at which time the rice screen cannot be accelerated to rotate.

When the rotary rice whitener machine is working, the motor outputs the force energy to the roller, and the roller rotates at a high speed to drive the rice grains to collide and tumbling in the whitening chamber, consuming most of the energy, and rubbing off the whitening by friction. At the same time, the rice grain in the whitening chamber is a flexible carrier for energy transmission, which drives the rice sieve and the roller to rotate in the same direction. The rotating rice screen has a part of force that can be transmitted by the gear transmission to the worm gear transmission to the flat belt transmission and then to the roller main shaft, that is, the torque of the rotating rice screen is fed back to the roller main shaft through the above route.

Therefore, in view of the particularity of the force transmission of the rotary screen rice whitener machine, the transmission system of the rotary rice sieve cannot be designed and calculated according to the force transmission route when no-loading, and the feedback torque of the rotating rice sieve must be used when the rice whitener machine is working.

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Double-roller Rice Polisher(LIANGGONG) machine is a new double-roll rice polisher machine that has been carefully built for many years of production and development of polishing machine professional technology and experience, integrating the new concept of polished rice polishing requirements. The double roller of the machine is of upper and lower structure, and the process can be used in parallel or in series, which has large output (single machine polishing can reach 5-6 tons/hour, multi-machine string can reach 6-7 tons/hour), and the floor space is small. The compact structure of the machine has a length of 1.2 meters and a total length of 2.4 meters. The polished rice is white and bright, with less shredded and less rice balls. It is the ideal for modern branding and intensive rice industry.


Compact structure and small footprint.

The polishing system parts are all made of food grade stainless steel, which is both hygienic and durable, while the polished rice is white and bright.

It is suitable for the polishing of long-grain rice and short-grain rice. It can be used for the long-term stable production of rice in the northeast of China, and it can reduce the rice bran ball.

When using single machine, it can be thrown or thrown. The output is in the range of 5-7 tons/hour. It is best to use the series throwing process. The output can be used in 8-12 tons/hour and the polishing process is suitable for multi-machine polishing.

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The whitening movement of the Rice Whitener(LIANGGONG) is composed of the collision and rolling movement of the rice grains, which is the basic factor for the whitening of the rice whitener. The collision movement of the rice whitener is divided into three categories: the first type is the collision between the rice grain and the white roller to obtain the velocity and pressure; the second type is the velocity of the rice grains colliding with each other under a certain whitening pressure; the third type has The speed of the rice grains collides with other components in the white inner wall and the whitening chamber under a certain whitening pressure. The first type of collision is the basis of the whitening work.

Rice whitener machine wipes away the collision of whitening

Type 1 collision: The impact force generated by the collision of the rice grain and the iron roller rib on the forward surface acts on the joint of the cortex and endosperm of the rice grain. The rib exerts pressure on the rice grain, creating friction between the grain layer of the grain and the rib. The impact force and the friction force form a couple, the moment is the thickness of the skin layer, and the skin layer is broken and peeled off.

Type 2 collision: The average rubbing off between the rice grains and the speed at which the rice grains come into contact with each other produces impact and friction, and the formation of the force causes the cortex to continue to break and be peeled off.

Type 3 collision: The grain speed is low, mainly rubbing away the residual skin layer and discharging the peeled skin layer out of the sieve drum.

Rice whitener machine grinding and colliding

Type 1 collision: The impact of the rice grain and the sand blade collides with the centrifugal force, and the combination of the two causes the rice grain layer to be wedged by the sand blade. The applied force is decomposed into the cutting force and the cutting force to complete the effect of grinding the cortex. When the rice leaves the white roller, the grinding is terminated.

Type 2 Collision: Under the action of average grinding and whitening pressure, the rice grains collide with each other at a speed lower than the line speed of the sand roller to produce a "study" effect, removing the looser part of the skin layer that has been cut by the sand blade and removing it without loosening. Small cortex.

Type 3 Collision: The collision is the same but weaker than the Class. And the casted cortex is discharged.

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Rice Polisher(LIANGGONG) machine is the company's professional experience in collecting long-term production of rice polisher machine. Combined with the actual production and processing of rice milling enterprises, it is a well-designed and developed type that can make the polishing effect of rice reach white and bright, and is very economical and durable. The rice polishing machine can meet the process requirements of single-machine polishing or multi-machine light polishing in the rice mill process.


The long-type polishing roller increases the effective polishing area and improves the polishing efficiency. The high-wearing bright multi-ribbed segmented polishing roller is combined with the high-wear and multi-size segmented sieve to make the polished rice bright and white with high precision. Less shredded.

Adopt imported flowmeter, intelligent current meter, temperature controller and other automation components to ensure automatic high pressure air spray device

Stable, reliable and sensitive.

Compact structure, small footprint, stable mechanical performance, multi-directional adjustable wind design, good drainage effect.

The design is novel, the shape is beautiful, and the mechanical properties are stable.

Equipped with water pump and air pump automatic constant temperature watering device.

Current and negative pressure display, easy to operate.

Imported components are configured for durability.

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VS150 vertical emery & Iron roller Rice Whitener(LIANGGONG) is the latest model that our company developed on the basis of optimizing the advantages of the current vertical emery roller rice whitener and vertical iron roller rice whitener, in order to meet the rice mill plant with the capacity of 100-150t/day. It can be used by only one set to process normal finished rice, also can be used by two or more sets jointly to process super finished rice, is an ideal equipment for the modern rice milling plant.


1.More simple and easy process combination

With the vertical emery roller rice whitener and vertical iron roller rice whitener’s characteristics, in the process combination, VS150 can be used by only one or more sets jointly to process different grades of rice. VS150 features compact structure, small occupation, with the design of feeding from lower part and discharging from upper part to save elevators under more sets in series.

2.High capacity and lower broken rate

Feeding by bottom screw, can ensure enough feeding flow, meanwhile can enlarge milling area, increases output and reduce the broken rate

3.Minimum bran with milled rice

A special shape screen frame in VS150, makes bran not to adhere to screen frame outside, and the mesh is not easy to be jammed. Meanwhile, with the design of axial jet-air and strong suction air from external blower, VS150’S bran removing performance is better.

4.Simple operation

The feeding adjustment operation is very simple, can control accurately the flow. By adjusting the discharge pressure, can get the requested satisfied finished rice. All control buttons and instruments are on the control panel.

5.Wide range of application

VS150 is not only suitable for short and round rice, long and thin rice, also is suitable for parboiled rice processing.

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KB series Rice Polisher(LIANGGONG)

1.Roller chill adopts centrifuged cast iron.

2.Horizontal roller configuration.


The Polishing Machine has been specially developed to meet rice millers demands for better rice, better in appearance, quality and storability. Ordinary rice whitening machines damage the surface of milled rice.

Through application of humidity controlled air during the whitening process and the new technology , these surface damages are cured and corrected.

Higher Commercial Value

The surface of the milled rice is smooth and clean.

Safe storage

The milled rice can be stored longer because the surface of the grain is smooth and there are less grooves or dimples where rice bran, dust, fungi, etc. can stay and grow.

Multi-pass polishing

The KB machines can be used in series to create a 'silky polished' rice.

Less downtime for subsequent machines

Because the machine removes adhering bran and fine powder and produces very clean milled rice, bran accumulation in the milled rice passage through the rice grader, colour sorter, rotary sifter, etc is much less. This prevents the lowering of performance of these machines. Cleaning frequency is greatly reduced.

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