Sunflower Seed Dehulling and Cleaning Line

Sunflower Seed Dehulling and Cleaning Line

The sunflower seed dehulling and cleaning line is a core system in the deep processing of sunflower seeds.  It is primarily used to transform raw sunflower seeds, harvested from the field, into semi-finished or finished products with clear separation of shell and kernel, controlled impurity content, and suitability for subsequent food processing or oil extraction. Shijiazhuang Xinlu Technology Co., Ltd. has accumulated mature equipment configuration and engineering experience in this field, and can provide stable, systematic solutions based on different raw material characteristics and production capacity requirements.

I. Sunflower Seed Raw Material Characteristics and Processing Challenges

The main problems faced in sunflower seed processing include a high shell-to-kernel ratio, significant differences in shell strength, and complex sources of impurities. Common impurities in the raw materials include straw fragments, shriveled seeds, broken seeds, sand, and light plant fibers. Due to the relatively uniform size of sunflower seeds, simple screening is insufficient for effective separation; therefore, air separation, gravity separation, and dehulling technologies must be combined.

II. Overall Structure of the Dehulling and Cleaning Production Line

A complete sunflower seed dehulling and cleaning production line typically consists of the following functional units: feeding system, pre-cleaning system, dehulling system, shell-kernel separation system, gravity separation system, and finished product output system. The equipment is connected in an orderly manner through a conveying system to ensure continuous and stable material flow.

III. Key Equipment and Working Principles

The dehulling equipment uses mechanical impact and friction to break the seed shells while maintaining the integrity of the kernels as much as possible. After dehulling, the mixture enters a multi-stage air separation system, which separates the shells and kernels based on their differences in density and aerodynamic characteristics. Subsequently, a gravity separator further removes immature kernels and light impurities, improving the overall quality of the final product.

IV. Process Adjustment and Operation Control

For different varieties of sunflower seeds, the production line can be adjusted by changing parameters such as dehulling intensity, airflow volume, and screen mesh size to achieve a more suitable processing state. Appropriate parameter settings not only improve the dehulling rate but also effectively reduce the kernel breakage rate.

V. Applications and Value

This production line is widely used in edible sunflower seed processing plants, sunflower kernel raw material supply enterprises, and export-oriented processing projects. Through systematic processing, companies can consistently obtain sunflower kernel raw materials that meet market requirements.