Liquid miner
Publish: 2021-04-19 21:55:01
1. The main components of hot galvanizing sludge are Fe (OH) 3, soil impurities and trace amount of Zn2 +. Due to the existence of trace amount of Zn2 + and low iron content, it can not be used for secondary smelting and recycling in iron and steel plants; At present, the current treatment method in China is landfill after treatment by qualified manufacturers. How to effectively remove water, rece transportation costs and secondary pollution in the transportation process is an important issue before handing it to a qualified treatment plant
as a sludge drying process, the main task is to convert the liquid water in the sludge into gaseous water. This process consumes a lot of energy. By heating, the water in the material absorbs heat, so as to increase the movement intensity of water molecules, break away from the shackles of the original material, and disperse to the air around the material, and then pass through the air, Transfer to the atmosphere. The traditional method is to directly discharge the high humidity air from the sludge into the atmosphere by heating coal-fired and gas-fired boilers. This method is relatively simple, but it results in the waste of primary petrochemical energy and the secondary pollution of flue gas and hot and humid air to the atmosphere
in order to effectively solve this problem, our most advanced solution is to use the heat pump method to transfer the heat to the front-end distillation process when the water in the original high humidity hot air is cooled into liquid distilled water in the closed system, so as to achieve the purpose of high efficiency. On the one hand, it can achieve the goal of sludge drying, on the other hand, it can realize the closed system, which will not discharge waste gas into the atmosphere, but also can achieve the purpose of energy recovery and efficient operation. I hope the above analysis can give you some help. We have a lot of accumulation and precipitation in this area, and we can further exchange and interact if we are not clear about it!
as a sludge drying process, the main task is to convert the liquid water in the sludge into gaseous water. This process consumes a lot of energy. By heating, the water in the material absorbs heat, so as to increase the movement intensity of water molecules, break away from the shackles of the original material, and disperse to the air around the material, and then pass through the air, Transfer to the atmosphere. The traditional method is to directly discharge the high humidity air from the sludge into the atmosphere by heating coal-fired and gas-fired boilers. This method is relatively simple, but it results in the waste of primary petrochemical energy and the secondary pollution of flue gas and hot and humid air to the atmosphere
in order to effectively solve this problem, our most advanced solution is to use the heat pump method to transfer the heat to the front-end distillation process when the water in the original high humidity hot air is cooled into liquid distilled water in the closed system, so as to achieve the purpose of high efficiency. On the one hand, it can achieve the goal of sludge drying, on the other hand, it can realize the closed system, which will not discharge waste gas into the atmosphere, but also can achieve the purpose of energy recovery and efficient operation. I hope the above analysis can give you some help. We have a lot of accumulation and precipitation in this area, and we can further exchange and interact if we are not clear about it!
Hot content