What Is Destoner Machine And Its Working Principle

With the rapid growth of the agricultural sector, advanced machines such as destoner machines have a wide range of applications that make the work easier. The rice destoner includes a stone screen that uses vibration motion to separate the grains from the stones. 

Because of the vibration outlet, the cleaner paddy will fall. The machines enable you to work smarter and reduce the intensive labour work, making the future of Destoners Machine Manufacturers in India brighter.

Here is an article that explains what destoners are and how they work.

What is Destoner Machine?

A Destoner is a machine designed to remove stones, mud, or other impurities of similar size or shape from rice, wheat, paddy, coffee, beans, and other grains. That is how modern rice mill plants remove or separate large and small stones from rice grains, resulting in stone-free commercial rice.

This equipment is powered by electricity and aids in the removal of impurities of all sizes and shapes. This prepares the rice for commercial use. These machines are classified according to their mechanical structure and working process.

When harvesting in wet conditions, the harvester can drive on a row of stones, which improves traction. There are several types of destoner machines, including connecting rod type destoners, vibratory destoners, double-deck destoners, mini rice destoners, and so on.

Types of Destoners

Destoner Machine Manufacturers in India design the following types of machines:

• Vibratory Destoner- This machine uses vibration motions to separate the grains from the stones.

• Double Deck Destoner- This model has two decks and uses the same vibration principle to separate the grains.

• Mini Rice Destoner- Smaller in size, it uses vibratory motions to separate the rice grain from the stones.

How do Destoner Machines work?

Destoners work on the basis of the weight difference between grains and impurities. The size of the grains, the surface conditions of the grains, the shape of the grains, and gravity all have an impact on impurity removal using a destoner. A mesh sheet and the machine's bottom supply the air.

Because of the weight difference, the grains, and impurities separate. The lighter grains will be removed from the mesh, while the heavier stones will remain. This aids in the separation of grains and stones. Machine settings such as mesh bed inclination, air force, vibration, and so on. Many destoners are specialized to clean a specific type of grain, while others are general and can be used on all types of produce.

The Working Principle Process of Destoner Device

A destoner machine is an essential piece of impurity removal in processing plants. It is primarily used to remove sidewalk stones mixed in rice. Also to reduce the sand content of rice and ensure rice quality. 

If the working principle and operation of the stone-removing machine are not thoroughly understood, it is unquestionably not conducive to improving the process effect of the stone-removing machine.

The main working mechanism of the destoner machine is going to the destoner screen. 

After the material enters the destoner screen. The rice floats on the upper layer. It is due to the difference in suspension speed between the shoulder stone and the rice. And the shoulder rock sinks due to the combined action of proper vibration and updraft. 

The bottom layer is close to the screen surface to form an automatic classification phenomenon. And the gap between the materials is increased due to the action of the airflow. While positive pressure and friction between the layers are reduced. 

This promotes the formation of automatic grading in a fluidized state. Gravity, inertia, airflow, and continuous feeding are the forces that move the upper layer material at a slower suspension speed. 

The lower layer material is the sliding surface. It is discharged to the rice outlet relative to the destoner screen surface. The suspension is suspended during the process of the upper layer material falling. 

The high-speed parallel stones and other debris gradually separated from the material layer into the lower layer. And the lower stones and unsuspended rice slide along the sieve surface under the action of vibration. 

Then the rice enters the upper layer in a semi-suspended state continuously. When you reach the top of the stone screen. The underlying material contains very little wheat.

Under the action of the back airflow. These rice are blown back into the wheat stream. And the shoulder stone continues to climb up and exit from the stone outlet.

The Benefits of Using a Destoner Machine

A destoner is a machine that removes heavier contaminants or debris from a product stream or flow. 

It typically removes a small percentage of the flow, but it can include large items such as stones, glass, metals, or other heavy items. 

The machine separates the products into light and heavy materials by using a fluidized bed of air and a vibrating deck to move the heavier materials uphill. 

The destoner can be used ahead of or behind a gravity separator during the conditioning process.

This machine will allow you to produce a higher-quality product in less time. Allowing you to concentrate on other aspects of your daily activities. 

Furthermore, you will be able to produce higher-quality products with unmatched end results.

About The Author

We at Sifter International are the leading Destoner Machine, Flour Mill Machine, Roaster Machine and Storage Silo machine Manufacturer and Supplier in India. Our machines are  highly appreciated and demanded in the market by our valuable clients. Our products are manufactured from high quality materials.