Integrated purification treatment equipment of industrial wastewater of steel plant

A technology for industrial wastewater and water purification, which is applied in water/sewage treatment, metallurgical wastewater treatment, and multi-stage water/sewage treatment. Good filtering effect, simple method and stable processing effect

Pending Publication Date: 2018-10-26
JIANGSU MINGYANG ENVIRONMENTAL PROTECTION
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] It can be seen that the composition of the wastewater produced by the iron and steel plant is relatively complex, and the wastewater cannot be discharged directly, but needs to b

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  • Integrated purification treatment equipment of industrial wastewater of steel plant

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Example Embodiment

[0019] An integrated water purification treatment equipment for industrial wastewater from a steel plant, which mainly includes a regulating tank 1, a lime softening sedimentation tank 2, a folded plate flocculation tank 3, an inclined plate sedimentation tank 4 and a valveless filter tank 5; the bottom of the regulating tank 1 is provided There is a pre-aeration device 1.1, a lifting pump 1.2 and an ultrasonic level meter 1.3; the lime softening sedimentation tank 2 is provided with a water distribution area 2.1 and a pre-sedimentation area 2.2, and the water distribution area 2.1 is provided with a water inlet on the upper side of the side wall 2.1.1, the bottom of the water distribution zone 2.1 is connected with the pre-sedimentation zone 2.2, the middle of the pre-sedimentation zone 2.2 is provided with a first inclined plate 2.2.1, and the upper side wall of the pre-sedimentation zone 2.2 is provided with an overflow groove 2.2.2 , The overflow tank 2.2.2 is connected to t...

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Abstract

The invention discloses integrated purification treatment equipment of industrial wastewater of a steel plant. The equipment mainly comprises an adjustment tank, a lime softening and sedimentation tank, a folded-plate flocculating tank, a sloping-plate sedimentation tank and a valveless filtering tank; a pre-aeration device, a lifting pump and an ultrasonic liquid level instrument are arranged onthe bottom of the adjustment tank, a water distribution area and a pre-sedimentation area are arranged in the lime softening and sedimentation tank, a first reaction area, a second reaction area, a third reaction area and a buffering filtering area which are connected in sequence are arranged in the folded-plate flocculating tank, a second sloping plate is arranged on the middle portion of the sloping-plate sedimentation tank, and a plurality of perforated water collecting grooves are formed in the upper portion of the sloping-plate sedimentation tank. The equipment is reasonable in structuraldesign, has a good wastewater treatment effect and is capable of achieving zero-pollution discharging.

Description

technical field [0001] The invention relates to the field of wastewater treatment in iron and steel plants, in particular to integrated water purification treatment equipment for industrial wastewater in iron and steel plants. Background technique [0002] Iron and steel are often called ferrous metals, which can be divided into raw (cast) iron, wrought iron and steel. Due to different production processes, the sources and properties of wastewater are also different. From the sources, there are wastewater from ironmaking workshops, wastewater from steelmaking workshops and wastewater from steel rolling workshops. From the perspective of use, there are mainly two types of indirect cooling wastewater and washing wastewater. [0003] The main water equipment in ironmaking workshops are blast furnaces, hot blast stoves, blowers and cast iron devices. Water is mainly used for cooling of equipment and washing of blast furnace gas. After the cooling water is used, the temperatur...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/16
CPCC02F9/00C02F1/001C02F2209/11C02F2209/06C02F2103/16C02F2001/007C02F5/06C02F1/56C02F1/5236
Inventor 陶科明
Owner JIANGSU MINGYANG ENVIRONMENTAL PROTECTION
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