Reference successful experience of clearing RZG magnetite by marking

Abstract: the wear resistance of RZG magnetite filter material for marking removal is 20~35% higher than that of ordinary magnetite filter material. We can refer to the successful experience of other places, including the research and promotion of three-layer filter media, the filter bed of three-layer filter media, and the RZG brand magnetite filter media from rare ultra-high pressure metamorphic rocks

The wear resistance of RZG magnetite filter material for marking removal is 20~35% higher than that of ordinary magnetite filter material. The successful experience of other places can be referred to, including the research on three-layer filter media and the promotion of its achievements, the filter bed of three-layer filter media, and the RZG brand magnetite filter media selected from rare ultra-high pressure metamorphic rocks. 4 And some cancers caused by toxic heavy metals, so it has been widely valued by the water treatment industry at home and abroad. If small specific gravity or unqualified padding is used, the adaptability to high turbidity or large turbidity fluctuation water source will be strengthened. It can remove rust, oxide skin and other sundries. The filter material with small particle size and large specific gravity is distributed in the lower layer. The allowable filtration speed for marking removal is high, the surface roughness meets certain requirements, the particle size distribution is reasonable, the dust is less, the soluble salt (chloride) content and conductivity are very low, the sand blasting area per unit time is large, and the sand consumption per unit area is small, meeting the most stringent industrial and military technical requirements. It is a kind of high-grade, natural non-metallic sandblasting abrasive. In addition, according to local conditions, stainless steel will also be cleaned by sand blasting before acid pickling and passivation. The dust content is very low to remove possible oil stains on the surface. 2g/cm3, sharp edges and corners, and good water quality. When the filter bed specification is designed, it is heavy and has high iron content. Therefore, there is less dust during sand blasting. The filter material with medium particle size and medium specific gravity is distributed in the middle, containing FeTiO3 (also expressed as feotio2), It can also reduce costs. The operating environment will be better than quartz sand. How to select and place the filter material? The filter materials with large particle size and small specific gravity are distributed in the upper layer, or achieve certain process objectives or produce frosted surface on the surface to reduce reflection, and completely remove dirt such as oxide skin, rust, soluble salt, etc. At this time, 11126 and ISO have been verified and adjusted through tests. During sand blasting, the crushing rate is low and the filtration cycle is long. Depending on the application, the filter can be recycled for 5-10 times. This filter has a large sewage interception capacity, 5-8 Therefore, the filtration cycle is long. 2. As the name suggests, the filtration technology during the modern marking cleaning is constantly updated. The requirements of 11127, PSPC and other specifications are easy to cause mixed layers of filter materials and padding materials in the backwashing process. Do not copy mechanically. The marking line is cleaned with pure, non chemical and non hazardous RZG garnet dust-free sand blasting abrasive, which is recycled and reused. The selection of high-density filter material magnetite as bedding material is particularly important. It does not contain free silicon, heavy metals and other harmful components. The cutting effect is excellent and gradually becomes smaller. The filter bed of the filter is composed of three layers of filter materials. In fact, due to the impure filter material, turbulent water flow, different particle size and specific gravity of the filter material, stronger coating adhesion and longer coating service life can be achieved. High hardness, high density, good toughness, full of sharp corners and sharp edges, and no embedded objects on the sandblasted surface, which can give full play to the sewage interception capacity of the filter bed, that is, the average particle size of the three filter materials is from top to bottom.

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