Tin ore fraction and placer ore two kinds of primary, primary ore frequently with iron, copper, lead, zinc, tungsten, bismuth, molybdenum, silver, antimony, fluorite and rare elements, sometimes associated sulfur, arsenic and the like. The mineral processing technology should fully consider the comprehensive recycling. For the mining quality of the primary mining industry: Sn should generally be above 0.2%. The thickness of the mining is >0.8 m, and the thickness of the stone is removed by >2 m. Cassiterite election process should be determined after chemical analysis in multi-metal ore, comprehensive recovery process different valuable metals are very different. The main source of industrial tin is cassiterite (SnO 2 ). The main selection method of cassiterite is re-election. However, due to the brittleness of cassiterite, it is easy to be muddy in the process of crushing, grinding and sorting in nature and concentrator. Therefore, the cassiterite is recovered from the re-selected fine mud and tailings by flotation. Tinfosite can be collected by various fatty acids and their soaps. Oleic acid, tal oil, oxide wax, alkyl sulfate, alkyl sulfonate, etc. can be used as collectors for cassiterite. The test confirmed that various toluic acid (mixed with toluic acid with p-toluic acid and cold mother liquor, the effect of selecting cassiterite is very good. Flotation of cassiterite with toluene citrate, crude selection of PH value 5-6, fine The selected pH is 2.5-4.0. The pH can be adjusted with sodium hydroxide, sodium carbonate and sulfuric acid. Inhibition with sodium silicate gangue minerals, with hexametaphosphate, sodium phosphate, calcium carboxymethyl cellulose, magnesium inhibition gangue minerals. Before the cassiterite flotation, it is usually necessary to remove the fine mud of -10u, and then add water glass, soda, etc. to remove the mud. The vein tin is often accompanied by sulfide minerals such as iron, arsenic, antimony, lead, copper and zinc. Therefore, before the selection of the cassiterite, the active agent of the sulfide mineral and the collector float out of the sulfide mineral to ensure the tin concentrate. grade. If the grade of the flotation concentrate tin is unqualified, it can be re-selected by a re-selection device such as a belt chute.
How to deal with the dry air in winter?
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The dryness evil in winter is so serious, what should we do?
In the north of China, the air is very dry in winter, especially indoors with heating. Xiaobian thinks that a humidifier should be prepared at home. In the past, we didn't have a humidifier. We would put a basin of water on the ground. The function of putting a basin of water was not so great, but it would feel more comfortable. At present, many humidifiers have intelligent functions. They can adjust to the humidity you set. When it reaches that range, it will automatically stop humidifying. If you live in a dry place, especially in a dry room, I suggest you prepare a humidifier.
What if there is no humidifier? If you don't have a humidifier at home, I suggest you can pour a little water on the ground before going to bed, which also has the effect of humidification. However, this method is not as effective as the humidifier. The humidifier can turn water into water vapor and beat it into the air, which can effectively change the degree of air dryness. In addition to putting a basin of water, you can also wet the towel and put it on the heating to let the water in the towel evaporate. These are the local methods of our people, and I think they are also feasible.
What should I pay attention to when I go out in a dry climate? In the face of a particularly dry external environment, you can wear a mask. The advantage of wearing a mask is to prevent the polluted air or cold air from driving directly into your nose, and it is easier to keep a wet state as the nose remains warm. Therefore, if you feel your nose is very dry, you can put on the mask quickly.
The doctor suggested that an Aroma Diffuser should be placed indoors, which can effectively and immediately solve the problem of indoor air drying, humidify the air and solve the problem of air drying. For the ultrasonic aroma diffuser, the fog is sprayed out through vibration. You can contact us to learn more about aroma diffuser