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Single-tower and dual-cycle desulfurizing system and desulfurizing technology

A desulfurization system and dual-cycle technology, applied in the field of desulfurization treatment and pollutant treatment, can solve the problem that desulfurization facilities cannot meet emission requirements, and achieve the effect of meeting ultra-low emission requirements, avoiding scaling and high desulfurization efficiency.

Inactive Publication Date: 2019-01-01
吉林省京能水处理技术有限公司
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Problems solved by technology

However, with the improvement of social environmental protection awareness and the improvement of national laws and regulations, the control of pollutant discharge from facilities has become increasingly strict, requiring SO 2 The emission value should be lower than 50mg / Nm 3 , the existing desulfurization facilities can no longer meet the emission requirements

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  • Single-tower and dual-cycle desulfurizing system and desulfurizing technology
  • Single-tower and dual-cycle desulfurizing system and desulfurizing technology

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Embodiment Construction

[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0023] A kind of single-tower double-circulation desulfurization system of the present invention, such as figure 1 As shown, the system includes a desulfurization tower 1 and an oxidation tower 2; wherein the tower body of the desulfurization tower 1 has a flue gas inlet 3, a flue gas outlet 4, a first limestone slurry inlet 105 and a first oxidation air inlet 106; in the desulfurization tower 2 The interior is provided with a prim...

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Abstract

The invention relates to a single-tower and dual-cycle desulfurizing system which comprises a desulfurizing tower and an oxidizing tower, wherein the tower body of the desulfurizing tower is providedwith a flue gas inlet, a flue gas outlet, a first limestone slurry inlet, a first oxidized air inlet, a gypsum slurry discharge port and a first limestone slurry outlet; a first-level spray layer, a tray, a second-level spray layer and a demister are arranged in the desulfurizing tower from bottom to top; the first limestone slurry outlet is connected with the first-level spray layer through a pipeline and a first limestone slurry circulating pump; the demister is provided with a demister flushing water system; the tray is connected with the oxidizing tower through a pipeline; the oxidizing tower is also provided with a second limestone slurry inlet, a second oxidized air inlet and a second limestone slurry outlet; the second limestone slurry outlet is connected with the second-level spraylayer through a pipeline and a second limestone slurry circulating pump. The desulfurizing system provided by the invention realizes a higher desulfurizing efficiency and also can obtain gypsum withperfect quality.

Description

technical field [0001] The invention relates to the field of pollutant treatment, in particular to the field of desulfurization treatment. Background technique [0002] The existing desulfurization system is based on the principle of "one furnace with one tower". Each desulfurization tower is equipped with 3 layers of slurry spray, outlet SO 2 The emission value operation control is lower than 100mg / Nm 3 . However, with the improvement of social environmental protection awareness and the improvement of national laws and regulations, the control of pollutant discharge from facilities has become increasingly strict, requiring SO 2 The emission value should be lower than 50mg / Nm 3 , the existing desulfurization facilities can no longer meet the emission requirements. [0003] Limestone-gypsum wet desulfurization process is the most widely used and reliable process in the world. In this process, limestone slurry is used as absorbent, and the flue gas is washed and reacted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/73B01D53/80B01D53/96C01F11/46
CPCB01D53/502B01D53/504B01D53/73B01D53/80B01D53/96B01D2251/404B01D2251/606B01D2258/0283C01F11/46
Inventor 赵冬梅
Owner 吉林省京能水处理技术有限公司
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