TheTheIntroduction
Rice husker machine, you can also call it rice huller. Rice hullers are usually used in the rice milling process, to help you remove the husk from the rice. In this article, we will explore the types, working principles, and benefits of rice hullers, to help you know more about this machine. Keep reading!
How do Rice Hullers Work?
First, before introducing how a rice huller works, I will tell you the components of a rice huller to help you understand the working principle of a rice huller better.
Parts of a Rice Huller
Feed Hopper
This is used to receive and store raw materials that need to be processed, ensuring that the material enters the processing area in an organized manner.
Flow Plate
Located below the feed hopper, it ensures that incoming rice flows evenly toward the rubber rollers. It helps control the amount of rice being fed into the machine, preventing issues like uneven husking or machine blockages caused by too much or too little rice.
Rubber Rollers
These are the key components of the rice husker, located below the flow plate. Usually used in pairs, the two rollers rotate in opposite directions to remove the husk from the rice.
Pressure Weight Adjustment Mechanism
This is unique to the pressure weight-type rice husker. It adjusts the distance between the two rubber rollers by changing the weight of the pressure weight. In the pneumatic rice husker, air pressure components automatically control the roller gap. When there’s no material, the rollers automatically separate. When material is present, the rollers automatically come together.
Gearbox
The gearbox transfers the power from the engine to the various parts of the rice husker, ensuring that all components work together smoothly for efficient operation.
Husk Separation Device
This device separates the husk from the brown rice by using the different weights and suspension speeds of the two materials. It controls the airflow to separate the husk from the rice.
Rice Husk Outlet
The rice husks are sucked out of the machine by air generated by the fan and are removed through the suction duct.
Brown Rice and Husk Mixture Outlet
The brown rice and husk mixture, being heavier, cannot be carried away by air and falls to the outlet below.
How a Rice Huller Works
The rice hulling process can be simply divided into two stages: one is rice hulling, and the other is rice husk separation.
Rice husking
When the cleaned rice enters through the feed inlet, it falls onto the flow plate. The flow plate adjusts the rice so it evenly drops between a pair of elastic rubber rollers. As the rollers rotate in opposite directions, they rub, tear, and squeeze the rice, causing most of the rice husks to fall off.
Rice husk separation
When the cleaned rice enters through the feed inlet, it falls onto the flow plate. The flow plate adjusts the rice so it evenly drops between a pair of elastic rubber rollers. As the rollers rotate in opposite directions, they rub, tear, and squeeze the rice, causing most of the rice husks to fall off.
Types of Rice Hullers
Both the pressure weight-type and pneumatic rice huskers use rubber rollers to remove the rice husks. However, these two types of huskers are different because they use different methods to adjust the rubber rollers.
MLGT Rice Huller
The pressure weight-type rice husker uses a mechanical pressure-weight system to adjust the pressure and distance between the rubber rollers by adjusting screws and the pressure weight. This adjustment needs to be done manually. Additionally, this type of rice husker usually combines a gearbox and belt drive.
MLGQ Rice Huller
The pneumatic rice husker uses an air-powered feeding roller system to adjust the distance and pressure between the rubber rollers. This makes it more automated. However, the pneumatic rice husker uses a single belt for power transmission, which makes its drive system relatively simple.
Laboratory Rice Huller
There is also a small lab rice husker. You need to manually adjust the distance and pressure between the rubber rollers. This machine helps you test the milling rate of different types of rice, so you can identify which rice is of better quality and avoid buying low-quality rice.
Benefits of Using Rice Huller
Efficiency
Both the pressure weight-type rice husker and the pneumatic rice husker are mechanized, unlike manual labor, which is limited by physical strength and speed. The rice huskers work continuously, allowing for fast husking of rice. They are not only efficient in terms of speed but also in milling rate. The husking rate for long-grain rice can reach 75% to 85%, and for short-grain rice, it can reach 80% to 90%. This makes them ideal for processing large quantities of rice.
High-quality
The distance between the rubber rollers can be adjusted based on the size of the rice grains. You can also change the airflow by adjusting the fan’s intake to improve separation, making sure the husks and brown rice are fully separated. This adjustability allows the rice husker to process rice with high quality, effectively reducing rice breakage and waste.
Reduce Labor Costs
The high automation of the rice husker reduces the need for labor. The control buttons and screen are very clear and easy to use. Even if it’s part of a whole rice milling production line, only one person is needed to operate it. With the average wage for agricultural labor rising each year, this can help you significantly reduce labor costs.
Environmental Friendly
The rice husker uses the significant difference in the suspension speeds of the husks, rice, and brown rice, along with airflow, to separate the husks. For example, the suspension speed of the husks is 1.5-2.0 m/s, the rice is around 8 m/s, and brown rice is even heavier. Adjusting the airflow completely separates the husks, which we can then collect and use for other purposes, such as power generation or animal feed. This improves the resource efficiency of the entire rice processing process and reduces the environmental impact of waste.
Factors to consider when choosing a rice huller
When you are looking to buy a rice husker, the following factors may help you make a better and more suitable choice.
Budget
First, consider the price of the rice husker. However, when buying a rice husker, you should not only think about the purchase cost, but also its long-term investment benefits. A high-quality rice husker lasts longer, produces rice with the quality you need, and reduces the need for repairs. This way, the return on investment for the rice husker will be higher.
Capacity
Rice huskers come in different sizes.
We categorize even the same type of rice husker by how much rice it can process into brown rice each day. For example, the common capacities for pressure weight-type rice huskers are 1.5 to 2 tons per hour, 2 to 2.5 tons, 3 to 4 tons, and 5 to 6 tons. Pneumatic rice huskers usually have capacities of 2.5 to 3.5 tons, 4 to 4.8 tons, and 6 to 8.5 tons. You should choose a husker based on your daily production needs to avoid wasting resources.
One-time shelling rate
Another important factor that many customers focus on is the initial husking rate. A higher husking rate reduces the work needed for further processing, which improves your rice milling efficiency.
Higher efficiency means higher output and lower production costs.
Conclusion
After reading this article, do you have a better understanding of the key agriculture equipment, rice huskers? If you still have questions or want to buy a rice husker, feel free to contact us at ANON. Since we founded the company, we have dedicated ourselves to exporting agricultural machinery and providing you with high-performance machines!
FAQs
What is the difference between a rice mill and a rice huller?
A rice mill and a rice husker are two different machines used in rice processing. The rice husker is used to remove the husk from the rice, resulting in brown rice. A rice mill is used to process brown rice by removing the bran from its surface and turning it into white rice.
