The importance of grain and oil quality inspection and related instruments

Grain and oil quality inspection is the basis of food work. It is a policy-oriented and socially-strong job. Problems with grain quality will not only cause economic losses, but also bring instability to society. It is also A professional and highly technical work, it is the use of scientific methods and means to analyze and evaluate the physical properties, process quality, nutritional quality, edible quality, storage quality and health indicators of grain and oil products. The inspection of grain and oil quality runs through the whole process of purchase, sale, adjustment, storage, addition, import and export, and grain and oil circulation in the grain and oil industry, and is an important part of the entire grain and oil work. At present, the grain and oil market has formed a diversified pattern, competition has become increasingly fierce, and phenomena of shoddy food and shoddy foods have occurred from time to time. In the activities involving food quality, food quality inspection plays a crucial role in administrative law enforcement. . Therefore, strengthening grain and oil inspection and monitoring work has important practical significance.

Grain and oil are related to the daily life of the people. Therefore, the quality and security of grain and oil is very important. The related grain and oil inspection instruments are also emerging one after another. Such as food moisture testing equipment, oil inspection equipment, wheat flour inspection and testing equipment, rice food inspection and testing equipment, etc., are important instruments for grain and oil inspection. In this paper, we mainly talk about electric filter and round powder screening. They all belong to food and food inspection and testing instruments and are specialized instruments for screening grain and oil quality.

Round powder screening sieve powder according to the new national standard GB/T5507-2008 "grain and oil inspection powder thickness determination" independent research and development of powder thickness test sieve. The principle is that the sample is sieved on sieves of different specifications to achieve different particle separation. Calculate the thickness of powdered grain according to the amount of residue on the screen. The powder screening screen adopts a worm gear pair with low center of gravity and high precision for variable speed transmission, and the eccentric linkage mechanism performs plane rotation movement. Under the action of the internal balance device, the operation is more stable, and the pressure rod seat integrated with the tray is integrated. The sieve is more reliable and easier to operate. Electronic timing control, high timing accuracy. The electric filter adopts the desktop structure, the worm and worm rotate at a variable speed, the screen body is supported by the three-point plane, and is rotated by the eccentric linkage mechanism. The utility model has the advantages of compact structure, stable operation, stable performance and convenient operation, etc., in the electronic control part. Adopt 89LE52 one-chip computer to control the forward rotation and the reverse, the positive and negative control time of control is high. Electric filter is mainly used in the screening and determination of grain and oil, and plays an important role in agricultural breeding.