Method used for desulphurization and denitration closed cycle and sulfur resource recovery

A closed-loop, desulfurization and denitrification technology, applied in separation methods, sulfur preparation/purification, chemical instruments and methods, etc., can solve the problems of difficult by-product treatment, high operating costs, secondary pollution, etc., and meet the needs of resource recovery and environmental protection Governance requirements, reduce operating costs, and save resources

Inactive Publication Date: 2016-10-26
天津佳晟染料贸易有限公司
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Problems solved by technology

[0012] The purpose of the present invention is to address the above deficiencies, and develop a closed-circuit cycle desulfurization and denitrification method and recovery of sulfur resour

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  • Method used for desulphurization and denitration closed cycle and sulfur resource recovery

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] like figure 1 As shown, a method for closed loop desulfurization and denitrification and recovery of sulfur resources, the method includes the following steps:

[0029] The first step, dust removal: a dust collector 32 is installed at the flue 1 at the rear of the boiler flue gas outlet, and installed downwind in the flue 1 of its air inlet, supplied by the water tank 4 through the high-pressure pump 5 and the water pipe 3 The flow of clean water is adjusted through the valve on the water pipe 3, and the water pipe 3 is connected with the atomizing nozzle 2, which is powerfully atomized to increase the full affinity of the gas, solid, and liquid phases. The ash hopper 6 installed under the dust collector 32 is connected to the ash hopper 7, and the outlet of the ash hopper 7 recovers the required dry (or semi-dry, wet) dust. Resources...

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Abstract

The invention provides a method used for desulphurization closed cycle and denitration and sulfur resource recovery. The method comprises the following steps: 1, dedusting; 2, desulphurization and denitration; and 3, sulfur resource recovery. The problems of difficult treatment and secondary pollution of byproducts, high running cost and product singleness in the prior art are effectively solved through the method. Desorption, reduction and regeneration of desulphurization byproducts are fully utilized according to market demands. The purpose of the method is to treat wastes with wastes and kill many birds with one stone, circulate and recovery wasted sulfur resources in coal-fired flue gas with lowest cost, improve the comprehensive added values of the desulphurization byproducts and reduce the running cost, so the method has the advantages of realization of long-term and high-efficiency running and self-sufficiency closed cycle of dedusting, desulphurization and denitration, resource saving, energy saving, consumption reduction, no wastewater discharge, no secondary pollution, resource recovery and environment treatment requirement meeting, and increase of the economic and social benefits of enterprises.

Description

Technical field: [0001] The invention relates to the technology of desulfurization, denitrification, dust removal and resource recovery and the field of environmental protection, in particular to a method for closed loop desulfurization and denitrification and recovery of sulfur resources. Background technique: [0002] my country is a country that uses coal as the main energy source. The pattern of power development mainly based on coal combustion will not change in the short term; coal is a low-grade combustible organic fossil energy source, and its lithofacies and chemical composition often have obvious differences. The difference and inhomogeneity of the sulfur content range from 0.1 to 10%, and the range of variation is relatively large. The task of FGD will be extremely difficult and heavy; When technology is the main method, it will inevitably bring huge investment and operation burden, and there are the following deficiencies: [0003] (1) Heavy removal and light use:...

Claims

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Application Information

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IPC IPC(8): B01D53/18B01D47/06C01B17/74C01B17/62C01B17/64C01B17/02
CPCB01D53/1425B01D53/1456B01D53/18B01D2257/302B01D2257/40C01B17/02C01B17/62C01B17/64C01B17/74Y02P20/10
Inventor 王娜
Owner 天津佳晟染料贸易有限公司
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