Steel beneficiation plant process Baiyunebo lean oxide ore, iron minerals mainly hematite, magnetite, followed pyrite gangue minerals are fluorite, carbonate minerals, followed feldspar , barite, etc. The grinding production process of Baotou Steel Concentrator is a three-stage and two closed-circuit grinding grading process, one section is rod grinding, the second section is lattice type ball mill , the third section is overflow type ball mill, and the grinding fineness is -0.174 mm accounted for 90%. Under the condition of -95%, the minerals are sorted according to the magnetic strength by simple weak magnetic separation-strong magnetic separation, and rationally grouped to obtain iron-rich weak magnetic separation and strong magnetic separation concentrate, rich in rare earth. The strong magnetic medium mine, and the removal of mineral mud and non-magnetic gangue minerals accounting for about 40% of the original ore. Weak magnetic separation and strong magnetic separation of mixed concentrates using sodium silicate as inhibitor, hydrocarbon-based sulfonic acid and carboxylic acid collector for reverse flotation, removal of fluorine, phosphorus and other carbonates, phosphate minerals, flotation The process is a rough and two fine. The ore grade was selected to be 31.85%, and the iron concentrate grade was 62.51%, and the recovery rate was 71.48%.
The main minerals in the iron ore processed by Hainan Iron and Steel Company's 1.1 million tons/year concentrator are mainly hematite (including specular iron or pseudo-hematite), a small amount of magnetite, limonite, and other small or trace amounts of gold. genus minerals pyrite, copper ore, pyrrhotite and the like. The gangue minerals are mainly quartz, others are chlorite, biotite , sericite and the like. After two sections of closed ore grinding, the ore enters a weak magnetic separation condition under the condition of grinding fineness -0.074mm accounting for 90%, and the ferromagnetic tailings are selected by strong magnetic separation and weakening. After the concentrated magnetic concentrate is concentrated, the anti-flotation desulfurization and desiliconization are carried out. In the case of the original ore grade of 47.63%, the iron concentrate with a grade of 64.50% and an iron recovery rate of 71% is finally obtained.
The main function of the edge banding is to seal the cross-section of the board, so as to avoid the damage of the board and the adverse factors (mainly moisture) in the process of use and prevent the formaldehyde inside the board from volatilizing, and at the same time achieve the effect of beautiful decoration.
The product has the following main features: smooth surface, no blistering, no ribbing, moderate gloss, smooth surface and back surface, uniform thickness, uniform width, reasonable hardness, high elasticity, good quality, strong wear resistance, trimmed and sealed The color of the side and the side is close to the surface color, not whitish, good gloss, and the overall color of the finished furniture is coordinated.
PVC furniture edge banding is relatively light, which is relative to metal and plexiglass. The reason for the lightness is not because it is a polymer compound, but because they are organic compounds, which are composed of carbon, hydrogen, oxygen, and chlorine. And other lighter elements.
The material of pvc furniture edge banding is plastic, which is easy to process. Plastic has plasticity, that is, it deforms after heating or pressurizing, and maintains its original shape after the temperature drops or the pressure disappears. It can be processed into edge bands of their respective shapes by extrusion and other methods, such as T-shaped edge bands, H-shaped edge bands, D-shaped edge bands, V-shaped edge bands, I-shapes, and so on.
pvc furniture edge banding is of high quality and low price, and the price of plastic is far less than that of metal.
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