Passivation antibacterium treatment technology for surface of grinding roll of corn flour mill

Abstract

The invention discloses a passivation antibacterium treatment technology for the surface of a grinding roll of a corn flour mill. The passivation antibacterium treatment technology comprises the steps of (1) surface polishing; (2) deoiling treatment; (3) cleaning treatment; (4) passivation treatment; and (5) cleaning and drying. According to the passivation antibacterium treatment technology, under the action of a film coalescing aid composed of hydroxypropyl methyl cellulose, tributyl phosphate, calcium glycerophosphate, methacrylate modified 1,2-polybutadiene resin, polydimethylsiloxane and triethanolamine borate, phytic acid, citric acid, tartaric acid, potassium molybdate, zinc molybdate, calcium molybdate, nano silica and modified nano diatomite react with iron on the surface of the grinding roll while exerting a chelating connection function, and a uniform and compact meshy composite molecular film is formed, so that the hardness, toughness, abrasion resistance and corrosion resistance of the grinding roll are improved, the grinding roll has relatively high insect resistance and antibacterial performance, and the safety of food processing is guaranteed; and through the auxiliary function of ultrasonic, the service life of the finally prepared grinding roll is prolonged by 3 to 4 times.

Description

technical field [0001] The invention relates to a processing technology of food machinery, in particular to a passivation and antibacterial treatment technology for the surface of a grinding roller of a corn flour mill. Background technique [0002] The corn flour mill is a device that grinds soybeans into powder, which is convenient for deep processing of corn. In the past, the grinding of corn was carried out manually through stone mills and other equipment. With the development of society, it is almost all replaced by mechanical equipment. The existing corn flour mill equipment mainly relies on grinding rollers to crush and grind the corn, and finally make powdery particles. The grinding roller is a vulnerable part in the corn flour mill. On the one hand, the surface of the grinding roller is severely worn and damaged due to the extrusion friction generated by long-term work; its damage. In addition, the grinding roller is easy to breed bacteria and produce mildew duri...

AI Technical Summary

Problems solved by technology

The grinding roller is a vulnerable part in the corn flour mill. On the one hand, the surface of the grinding roller is severely worn and damaged due to the extrusion friction generated by long-term work; damaged

In addition, the grinding roller is easy to breed bacteria and cause mildew during use, because it does not have the function of inhibiting the growth of mold, which brings a greater safety hazard to the product

Some people use galvanizing and nickel plating on the surface of the grinding roller to prevent the corrosion and mechanical damage of the grinding roller, but the particles of zinc, nickel and other metals shedding on the outer surface of the roller are harmful to the human body and cannot guarantee the safety of the product; some people use Sodium nitrite or trisodium phosphate is used to passivate the metal surface, but the nitrite in the process is toxic and endangers the health of employees, and the excess phosphate will pollute the environment after being discharged