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Описание: A wheat cleaning and grading plant is a facility where harvested wheat is processed to remove impurities, foreign matter, and damaged grains, and then sorted or graded based on various quality parameters. The plant plays a crucial role in ensuring that the wheat meets the required standards for further processing or distribution.

Here are the typical steps involved in a wheat cleaning and grading plant:

Receiving and Pre-Cleaning: The harvested wheat is delivered to the plant in bulk or bags. It is first unloaded and stored in silos or bins. Before processing, the wheat undergoes initial cleaning to remove large debris, stones, and other impurities using equipment like screens, aspirators, and magnetic separators.

Cleaning: In this step, the wheat is subjected to thorough cleaning to eliminate smaller impurities such as dust, chaff, straw, and immature or shriveled grains. Various cleaning equipment is employed, including vibrating screens, air aspirators, gravity tables, and scourers. The wheat is moved through these machines, and different physical properties like size, weight, and density are utilized to separate the impurities from the grains.

De-Awning and De-Bearding: Some varieties of wheat have beards (awns) attached to the grains. In this optional step, the beards are removed using machines equipped with rotating brushes or rubber rollers.

Size Grading: Wheat kernels come in different sizes, and they may be sorted into various size fractions. Size grading helps in achieving uniformity in the final product. Machines such as indented cylinders, screens, and sieves are used to separate wheat kernels based on their size.

Moisture Adjustment: The moisture content of wheat is an essential factor that impacts its quality and storage stability. If necessary, the moisture level is adjusted to an optimal range using tempering machines that add or remove moisture as required.

Optical Sorting: Optical sorters utilize advanced technology to scan each grain of wheat and identify any defective or discolored kernels. These machines use sensors and cameras to detect color, shape, and size variations. The defective grains are then removed using high-speed air jets or mechanical ejectors.

Weighing and Packaging: After cleaning and grading, the wheat can be weighed and packaged into bags or containers of appropriate sizes. The packaging may include labeling with information such as the grade, origin, and date of processing.

Quality Testing: Throughout the process, samples of the cleaned and graded wheat are collected for quality testing. Various parameters, including moisture content, protein content, gluten content, and foreign matter levels, are assessed to ensure that the wheat meets the required standards.

Storage and Dispatch: Once packaged, the wheat is typically stored in a controlled environment to maintain its quality. It is then ready for dispatch to flour mills, bakeries, or other food processing facilities.

Overall, a wheat cleaning and grading plant helps ensure that the wheat is free from impurities, uniform in quality, and suitable for further processing. The specific equipment and processes may vary depending on the plant's capacity, automation level, and the desired quality standards.