Showers, faucets, and basins are the most commonly used items in bathrooms, but they are always contaminated by shower gels, shampoos, hand soaps, soaps, etc., so bathroom supplies should be cleaned frequently. method. For the shower, the cleaning of the scale is the most important. In general, the net cover or other parts that absorb the scale at the shower head can be removed, and then cleaned with a brush and then returned to the original place. In addition, the detergent will make the chrome surface of the shower opaque, spray it on a soft cloth with a neutral detergent, and wipe the faucet.
If the hand basin is used for a long time, it will deposit and contaminate various pollutants. If it is a porcelain basin, it can be cleaned with soft bristles or sponge with neutral detergent. Do not pour it directly into hot water to avoid cracking the basin. In the case of a submerged wash basin, pay special attention to the dead corners of the joint below the countertop and the basin. The faucet in the bathroom will lose its luster after a long time. When cleaning, it should avoid the use of detergents and wipes that damage the polished metal surface. Immediately after wiping, rinse off the remaining detergent with water, and then use a soft damp cloth to remove any residual water on the surface. The hard water mark on the faucet is the most difficult to clean, and can be gently wiped with an equal amount of white vinegar and an aqueous solution.
Copper smelting methods can be divided into two categories: pyrometallurgy and hydrometallurgy. More than 85% of the world's refined copper output is recovered from pyrophyllite concentrates and recycled copper by pyrometallurgical process, and the refined copper produced by hydrometallurgy only accounts for about 15%.
In China, copper metal is extracted from copper concentrates mainly by the pyrometallurgical method. The more advanced one is flash smelting, whose output accounts for over 30% of the total copper produced in the country. Due to low energy consumption, large-scale, can effectively control the advantages of environmental pollution. This smelting technology is being developed in the copper industry. Flash smelting furnace according to different working principle can be divided into two types: Outokumpu flash melting, InCo flash melting. The following describes Outokumpu smelting process.
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