Metal detector for sorting metal deoxidizer

The AD-4971 metal detector is a high-precision and high-performance metal detector introduced by A&D Corporation of Japan after the acquisition of Japan's MY-TECH. It uses 16-bit high-resolution ADC, high-precision digital filtering technology and high-precision signal. Processing method , and independent detection algorithm . It can realize that one AD-4971 detector can realize the determination of metal foreign matter by using metal deoxidizer as preservative . The standard package weight of metal deoxidizer is above 1g . It is possible to detect metal foreign bodies of Fe Ф 0.3 mm and SUS Ф 0.8 mm.

Japanese MY-TECH company (it was also translated into Japanese Mita) is with 50 years of professional metal detector R & D and production enterprises. Since 1958 * metal detector machine on the market, and now products around the world. Common market The models available are : CS series () CS1-S250-CSP). CR series (CR-PK80-SHG), DR series (DR2-PK70-SHG), etc. In the food industry , the aquatic products processing industry has a high reputation. .

As a new material for food preservation, deoxidizer has its unique advantages. It is contained in the same container as the food, and the deoxidizer absorbs the oxygen in the container, so that the inside of the container is in an anaerobic state, and the food is preserved. However, the raw material of the deoxidizer must have side effects such as stable reaction, no strange smell and no harmful gas generation, and it is harmless to the human body in case of ingestion. Deoxidizers are generally based on iron powder and are used in general foods to maintain food quality and extend shelf life. Use in healthy foods to prevent oxidation of oils, prevent fading and maintain nutrients. In Baidu Encyclopedia, the reaction principle commonly used for deoxidizers is iron powder oxidation (iron), enzyme oxidation (enzyme), ascorbic acid oxidation, and photo-sensitive dye oxidation. Most of the deoxidizers currently in use are based on iron oxide oxidation reactions. This iron-based deoxidizer can be made into a bag and placed in a package to reduce the oxygen concentration to zero . 01% . Generally, lg iron powder can be reacted with 300 mL of oxygen. When used, the appropriate amount can be selected according to the amount of oxygen remaining after packaging and the oxygen permeability of the packaging film. Products used include confectionery, dried seafood snacks, cooked meat products, rice cakes, pasta, cheese, and dried vegetables.

Since both metal deoxidizer in Japan pastries, cookies, seaweed, dried meat, dried fruit and other products as a preservative. In the 1990s, Japan implemented PL Law (Product Liability Law in Japan (Produet liability law referred PL)), food production Metal detectors have been added to the manufacturers , but the preservative used is a metal deoxidizer. Many companies use X- ray (X -ray ) detection methods to detect metal foreign objects in products . However, X- ray metal detectors are expensive , high maintenance costs, long maintenance time affects production schedule, and will be nearby when used for a long time. The staff will cause some radiation damage . Therefore , Japan's A&D company now introduces the new metal detector of the AD-4971 series , which fills the gap of low cost , easy maintenance and no radiation . AD-4971 The series of metal detectors adopts the principle of electromagnetic induction and completes A&D's unique A/D conversion technology and digital filtering technology , which realizes the possibility of detecting foreign matter of products using metal deoxidizer as preservative. It can also ensure the proper and proper amount of deoxidizer.