Grain and cereal cleaning processes – from pre-cleaning to polishing

Cereals are the basis of food worldwide. However, before they reach our tables, they undergo a series of processes, including grain and cereal cleaning, pre-cleaning, grading and polishing. These processes are essential to ensure the quality and food safety of cereals, as well as the efficiency of the production process.

Grain cleaning is a fundamental process to ensure food quality and safety. To perform this task, it is necessary to use specific equipment at each stage of the process. In this sense, the Idugel Group produces all the main equipment used in grain cleaning, from the sieve, pre-cleaner, densimetric classifier to the grain polisher.

Pre-cleaning

The pre-cleaning stage is essential to remove coarse impurities, such as stones, straw and other objects that can damage the milling equipment. In addition, this stage allows for better distribution of the grains in the cleaning equipment. At this stage, the pre-cleaning sieve It is one of the main equipment used, as it removes coarse impurities and helps separate clean grains from impurities.

Another important piece of equipment for the pre-cleaning stage is the magnetic separator, which removes metallic impurities from the grains. This equipment is essential to guarantee the quality of the grains, avoiding contamination that could harm the health of consumers.

Cleaning

In the grain and cereal cleaning phase, equipment such as the suction channel and the stone remover, which removes the finest impurities, such as dust and husks. The suction channel uses a current of air to remove light impurities, while the stone remover removes heavy objects that may be mixed in with the grains.

Another piece of equipment used in the cleaning phase is the rotating drum, which separates broken and fragmented grains from whole grains. This equipment is important to ensure the quality of the grains, as it allows the separation of grains that may have been damaged during the harvesting or transportation process.

Classification

In the classification phase, depending on the grain, the following can be used: trieur or else the combined separator , which separates the grains according to size and shape. This equipment is made up of several sieves with different openings, allowing the separation of the grains according to their characteristics.

An alternative to the sorter is the optical sorter. This equipment uses computer vision technology to separate grains according to their characteristics, such as color, shape and size. The optical sorter can be programmed to select and separate grains based on different parameters, which allows for more accurate and efficient sorting. In addition, it is capable of working at high speeds, making it a viable option for high-capacity production lines.

Another piece of equipment used in the classification phase is the gravity separator, which separates the grains according to their density. This equipment is important for separating light impurities, such as empty seeds and husks.

Polishing

Finally, the grain polisher It is a piece of equipment used to shine grains and remove the finest impurities. This equipment is used after cleaning and classifying the grains.

In short, cereal cleaning is a complex and essential process to ensure food quality and safety. The Idugel Group offers a wide range of equipment for cereal cleaning, from pre-cleaning sieves to grain polishers. It is important to invest in high-quality, high-tech equipment to ensure efficient and safe cleaning. In addition, the pre-cleaning stage, using equipment such as pre-cleaning sieves and magnetic separators, is essential to remove coarse impurities and ensure grain quality. In the cleaning phase, the use of equipment such as a suction channel, stone pickers and rotary drums is essential to remove finer impurities and separate broken and fragmented grains from whole grains. In the classification phase, the use of a trieure and gravity separator is important to separate the grains according to their characteristics and density. Finally, the grain polisher is used to give shine to the grains and remove fine impurities after cleaning and classification.

The Idugel Group has over 30 years of experience in the production of equipment for cleaning grains and cereals, offering technology and quality at every stage of the process. Investing in high-quality equipment is essential to ensure efficient and safe cleaning, ensuring food quality and safety.