Electroplating is a heavily polluting industry, but it is an industry that people have to use. All kinds of refined parts must be surface treated and refined by electroplating. The electroplating industry produces a large amount of sludge and sewage that needs to be treated, otherwise it will cause serious pollution problems. The electroplating sewage needs to be neutralized by adding lime, but another pollution is produced, that is, electroplating sludge. The danger of electroplating sludge comes from heavy metals and their leachate, mainly copper, nickel, chromium, cyanide, zinc and so on. According to the current national environmental protection policies, all electroplating sludge should be recycled by qualified enterprises. The treatment of electroplating sludge is a very important cost of environmental protection expenditure for many electroplating enterprises. After the electroplating sludge dryer is used to dry the electroplating sludge, the cost of recycling by weight will be greatly reduced, so many companies now use the electroplating sludge paddle dryer to dry the sludge Submit for processing after drying to reduce costs.
Target industries: printing and dyeing, papermaking, biology, electroplating, thermal power, chemical and sewage treatment plants. Generally, the initial moisture content of the sludge after dehydration is 80%, and the final moisture content after drying is 10% to 50%. The general sludge requirement is about 30%. The dry sludge can be mixed with coal powder and directly enter the boiler for combustion. , The calorific value of sludge is about 1500-2000kcal, which can be used as waste and save energy. Some sludge can also be made into fertilizer and building materials after drying, or directly landfilled without causing secondary pollution, turning waste into Bao, fully meet the requirements of environmental protection, this equipment has low energy consumption, the heat source can use steam, heat transfer oil, hot air, flue gas, etc. to heat, (the heat consumed by evaporating 1kg of water is 1.1~1.3kg of steam) has low power consumption and stable operation , low noise, small amount of labor and other advantages, basically fully automatic production.
Sep 27, 2023
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Electroplating sludge hollow paddle dryer is widely used
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