How does the destoner machine work?

Unveiling the Wizardry: Understanding How Destoner Machines Work in Rice Processing

In the intricate realm of rice processing, the destoner machine emerges as an indispensable guardian, entrusted with the crucial task of impurity removal. This blog post aims to delve into the inner workings of the destoner machine, shedding light on its pivotal role in ensuring the quality of rice produced in processing plants.

The Significance of Destoner Machines:

Destoner machines play a vital role in rice processing plants by effectively removing sidewalk stones mixed with rice. The primary objective is to reduce the sand content in rice, ultimately safeguarding the quality of the final product. However, comprehending the working principle and operation intricacies of this impurity removal equipment is paramount for maximizing its efficiency in the rice processing workflow.

The Destoner Screen:

At the heart of the destoner machine lies the destoner screen, the main working mechanism that orchestrates the entire process. Once the material enters the destoner screen, a dynamic interplay of factors comes into play to separate rice from shoulder stones:

Suspension Speed Difference:

Due to the varying suspension speeds of shoulder stones and rice, a combination of proper vibration and updraft is applied. This results in the formation of two distinct layers – the upper layer with rice floating due to smaller suspension speed and the bottom layer with sinking shoulder rocks.

Automatic Classification:

An automatic classification phenomenon takes shape as the material layers interact with the destoner screen. The increased gap between materials, coupled with reduced positive pressure and friction, creates a fluidized state that promotes further automatic grading.

Material Movement:

The upper layer, composed of material with lower suspension speed, is driven by gravity, inertia force, air flow, and continuous feeding. Simultaneously, the lower layer material serves as the sliding surface, moving towards the rice outlet. The dynamic interplay unfolds in a semi-suspended state as rice continuously enters the upper layer.

Separation Process:

In the process of the upper layer material falling, high-speed parallel stones and other debris separate from the material layer, descending into the lower layer. Under the influence of vibration, lower stones and unsuspended rice slide along the sieve surface. Upon reaching the upper end of the stone screen, the underlying material contains minimal wheat, and rice in this layer is blown back into the wheat stream by the back airflow.

Conclusion:

The destoner machine operates as a silent hero in the rice processing journey, ensuring the removal of impurities with precision and finesse. By unraveling the main working principle of the destoner machine, we gain a deeper appreciation for the meticulous processes at play, ultimately contributing to the production of high-quality rice in processing plants.