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A process for purification and treatment of wastewater from iron and steel smelting industry

A technology for industrial wastewater and iron and steel smelting, applied in chemical instruments and methods, separation methods, lighting and heating equipment, etc., can solve problems such as inability to remove impurities in wastewater, damage to the natural environment, and damage to river ecosystems, and achieve good cooling effects. The effect of improving the cooling effect

Active Publication Date: 2021-11-02
SHANXI TONGCAI IND & TRADE
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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

Method used

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  • A process for purification and treatment of wastewater from iron and steel smelting industry
  • A process for purification and treatment of wastewater from iron and steel smelting industry
  • A process for purification and treatment of wastewater from iron and steel smelting industry

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Embodiment Construction

[0032] The following is attached Figure 1-7 The present invention is described in further detail.

[0033] refer to figure 2 As shown, it is an iron and steel smelting industrial wastewater purification treatment process disclosed in the present invention, which uses an iron and steel smelting industrial wastewater purification and cooling equipment, and the equipment can filter and purify the smelting industrial wastewater and reduce the temperature. Among them, the equipment includes a cooling device 1, a first-level impurity removal device 2 and a second-level impurity removal device 3. The cooling device 1 cools the smelting industrial wastewater, and the first-level impurity removal device 2 and the second-level impurity removal device 3 cooperate with each other. Impurities in smelting industrial wastewater are removed.

[0034] refer to image 3 As shown, the cooling device 1 includes a drainage pipe 11, a rotating stirring paddle 12, a blower 13, an air outlet 14,...

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Abstract

The present invention relates to a process for purification and treatment of industrial wastewater in iron and steel smelting, and relates to the technical field of metal smelting. It uses a purification and cooling equipment for industrial wastewater in iron and steel smelting. The equipment includes a cooling device, a primary impurity removal device and a secondary impurity removal device. , wherein the cooling device cools the smelting industrial wastewater, and the first-level impurity removal device and the second-level impurity removal device cooperate with each other to remove impurities in the smelting industrial wastewater; the present invention has good impurity removal effect, high operating efficiency and cooling good 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D36/02B01D35/16F28C3/06F28F13/12
CPCB01D35/16B01D36/02F28C3/06F28F13/12
Inventor 丁健
Owner SHANXI TONGCAI IND & TRADE
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