Steel smelting industrial wastewater purification treatment process

Abstract

The invention relates to a steel smelting industrial wastewater purification treatment process, and relates to the technical field of metal smelting. Iron and steel smelting industrial wastewater purifying and cooling equipment is used, the equipment comprises a cooling device, a primary impurity removing device and a secondary impurity removing device, the cooling device is used for cooling smelting industrial wastewater, and the primary impurity removing device and the secondary impurity removing device are matched with each other to remove impurities in the smelting industrial wastewater; the process has the advantages of being good in impurity removal effect, high in operation efficiency and good in cooling performance.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to a process for purifying industrial waste water in iron and steel smelting. Background technique [0002] Metal smelting wastewater is the cooling water of ironmaking, steelmaking, steel rolling and other processes and the water for pouring castings and rolling pieces. Since the smelting wastewater contains more smelting impurities such as iron filings, dust and even some heavy metals, in addition , the initial temperature of smelting wastewater is generally high, and the smelting industrial wastewater needs to be treated and cooled before being discharged into the outside river. Due to the serious environmental pollution in recent years, the treatment of smelting industrial wastewater has become more and more popular. Pay attention to. [0003] At present, in order to improve work efficiency, when steelmaking plants actually process smelting wastewater, they simply filter...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to improve work efficiency, when steelmaking plants actually process smelting wastewater, they simply filter the smelting industrial wastewater, remove the large solid impurities in the wastewater, and then discharge the wastewater to the outside river. Obviously, this This method cannot remove the impurities in the wastewater very well. In addition, the temperature of the wastewater is still high. In the process of discharging higher wastewater into the river, it is easy to cause damage to the ecosystem of the river and further damage Natural environment, so there is still room for improvement in the way of smelting industrial wastewater treatment

Images