Wet-process desulfurization wastewater utilization system and process

A technology for wet desulfurization and waste water, which is applied in separation methods, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of hidden dangers of filter mud transportation and high economic cost investment, and solve the problem of water resource loss and improve Dust removal effect and loss saving effect

Active Publication Date: 2015-06-10
BEIJING ZHONGNENG NUOTAI ENERGY SAVING & ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention has achieved a certain technical effect in terms of water saving, but in terms of environmental protection, there are still hidden dangers in the treatment of filter mud, and the economic cost of the equipment is high.

Method used

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  • Wet-process desulfurization wastewater utilization system and process
  • Wet-process desulfurization wastewater utilization system and process

Examples

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Embodiment 1

[0023] Such as figure 1 As shown, a wet desulfurization wastewater utilization system of the present invention includes a flue inlet 1, a dust collector 2, an absorption tower 3 and a waste water discharge pipeline 4 connected in sequence, wherein, in the flue inlet 1, there is Gas-liquid two-phase flow atomizer 5.

[0024] In the above embodiment, in order to enhance the utilization effect of waste water, the gas-liquid two-phase flow atomizer is preferably arranged at the flue gas inlet where the flue inlet 1 is connected to the dust collector 2; preferably, the gas-liquid two-phase There are multiple groups of flow atomizers 5, and multiple groups of gas-liquid two-phase flow atomizers 5 are arranged in the cross-section of the flue in a mesh structure, so that the original flue gas can fully contact the atomized wastewater, and fully improve the utilization of wastewater. efficiency, and can effectively prevent the atomized wastewater outlet of the gas-liquid two-phase fl...

Embodiment 2

[0031] Such as figure 1 and figure 2 As shown, a wet desulfurization waste water utilization system of the present invention has the same basic settings and applications as in Example 1. In order to enhance the comprehensive utilization effect of waste water removal and further improve the downstream flue gas desulfurization efficiency, the following settings are also included:

[0032] The gas-liquid two-phase flow atomizer 5 includes a nozzle 501, an air chamber 502, a suction pipe 503, a mixing pipe 504, and a diffuser pipe 505, wherein the nozzle 501 is connected to the air chamber 502, and the air chamber 502 is connected to the suction pipe 502 respectively. The tube 503 is connected with the mixing tube 504, the suction tube 503 is connected with the outside air, one end of the mixing tube 504 is adjacent to the nozzle 501, and the other end of the mixing tube 504 is connected with the diffuser tube 505.

[0033] In the above embodiment, in order to enhance the atomiz...

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Abstract

The invention relates to a wet-process desulfurization wastewater utilization system and process. The system comprises a smoke inlet path, a dust collector, an absorption tower and a wastewater discharge pipeline which are connected in sequence, wherein a gas-liquid two-phase flow atomizer is arranged in the smoke inlet path; original smoke gas entering from the smoke inlet path is mutually acted with atomized wastewater jetted by the gas-liquid two-phase flow atomizer, subjected to dust removal through the dust collector and subjected to desulfurization treatment by entering the absorption tower; the obtained wastewater is conveyed to the gas-liquid two-phase flow atomizer through the wastewater discharge pipeline; the wastewater is sprayed out after being atomized through the gas-liquid two-phase flow atomizer; the atomized wastewater acts with the original smoke gas in a circulating mode, so that the wastewater is utilized. According to the wet-process desulfurization wastewater utilization system and the process thereof disclosed by the invention, a wastewater emission secondary pollution problem and a water resource loss problem are solved, and efficient reutilization of the wastewater in the system is realized, so that the wet-process desulfurization system is completely free of wastewater emission, and the power consumption is reduced; the dust collecting effects of the dust collector are greatly improved, so that the integral saving and environment-friendly effects of the wet-process desulfurization system are promoted. The wet-process desulfurization wastewater utilization system is suitable for being popularized and applied in relevant fields.

Description

technical field [0001] The invention relates to the technical field of waste water recovery and utilization from flue gas treatment, in particular to a wet desulfurization waste water utilization system and a process thereof, which comprehensively utilize waste water generated in flue gas wet desulfurization treatment. Background technique [0002] At present, the desulfurization of boiler flue gas is mainly based on wet treatment. The principle of wet desulfurization process is mainly that high-temperature unsaturated flue gas and desulfurization slurry undergo gas-liquid mass transfer reaction in the absorption tower, and the flue gas is cooled and humidified to form saturated flue gas. The acid gas in the gas reacts with the reducing agent in the slurry to form salts. Since there is a certain amount of chlorine radicals in the boiler flue gas, during the gas-liquid mass transfer process of wet desulfurization treatment, the chlorine radicals in the flue gas will be washed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D51/10B01D53/80B01D53/48C02F1/12
Inventor 赵云才
Owner BEIJING ZHONGNENG NUOTAI ENERGY SAVING & ENVIRONMENTAL PROTECTION CO LTD
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