Application of metal detector in food industry

In order to obtain the best detection effect of the metal detector, it is equally important to choose the right location for it as much as possible Although the metal detection system is often considered when planning to install a new production line, the existing production line requires that the metal detector can also be easily installed in the original production line Most food and drug manufacturers install metal detectors at the end of the production line so that they can be inspected after Zui before the goods are delivered to retailers and customers However, in terms of cost, earlier detection of pollutants is more valuable, because only low-cost ingredients are wasted, rather than packaged products The ideal installation position of metal detection system varies with the change of products and industries, and varies with different factories For most manufacturers, if the metal detector is installed in the relatively forward process of the production line, but the limited space is often a problem However, some major manufacturers have noticed this problem, such as locklock, which has developed a metal detector known as' waferthin ' Its compact volume can be completely installed in a limited space, for example, on the top of the bag making machine / packaging machine Most manufacturers can configure the system according to the space requirements of customers Liquid products, such as soup or pie stuffing, can be detected online by a pipeline detector, at which time the pipeline connected with the processing equipment carries the product through the detector The metal detector manufacturer shall be able to provide accessories to connect the equipment with any processing equipment The type of pipe required depends on temperature, flow rate and product viscosity, but must be made of non-metallic materials Many food manufacturers install metal detectors before heavy and vulnerable equipment, because it can protect downstream machinery from damage and avoid production interruption, thus directly benefiting from the economy The detector can then act as a guard for vulnerable delivery pumps, rollers and valves, preventing them from being damaged by metal contaminants For example, in the production of biscuits, the detector is usually installed before the dough is molded into the forming roller The engraved brass roller and forming roller are very valuable and easy to scratch, which will cause more serious damage in case of metal impurities Installing metal detectors before forming the rollers will protect them from the hard metal in the biscuit This also ensures that contaminants are not further crushed, making detection more difficult The strict hygiene regulations of cleaning food industry are always the first consideration of metal detector manufacturers The equipment must be easily and quickly disassembled for cleaning to avoid production interruption The high-quality metal detector is made of stainless steel, and the protection grade meets the IP56 / 66 standard, which is convenient for thorough washing at the end of each shift If there are corrosive substances or high temperature products in the food industry, it is more necessary to have such characteristics if the cleaning conditions are more demanding The important role of detecting and removing metal detector is to provide reliable protection for products by sensitive and reliable detection of harmful metal fine debris However, this kind of protection can only be realized when the contaminated products are reliably removed from the production process and the safe products are delivered to the customers Therefore, the performance of the automatic rejection system is as important as that of the detector itself When pollutants are found, the detector will generate a rejection signal to drive the rejection device after a period of adjustable time delay It ensures that contaminated products are removed into the removal box Most of the removal devices are pneumatic devices In conveyor system, they can be push plate, flap door or simple air blowing type Some products may require some parts of the conveyor belt to sag or tilt in order to separate contaminated products from good ones For example, in the production of biscuits, the product passes through a return belt with a recycling bucket at the bottom If metal is found, a whole row of biscuits is removed to ensure complete product protection On the other hand, for soup, the diverter valve is used to introduce pollutants into the second pipeline, so as to eliminate the contaminated products without interruption of production Because the removal device adopts the fail safe mode, and at the same time, the electronic sensor can be used to check that the contaminated products are indeed removed into the removal box, rather than into the production line, so the safety of the products is greatly guaranteed by Zui Conclusion the current generation of metal detectors proves that the innovation of metal detection industry provides safety guarantee for the products of enterprises to be free from pollution At the same time, there is still a gap between physics and process requirements Even the sensitive metal detector of Zui can not guarantee to detect every metal particle passing through it However, the enthusiasm of the manufacturers of testing equipment for the challenges indicates that they will see some eye-catching development in the next few years.