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Method for desulfurating and denitrating and recovering sulfur resource in closed cycle way

A closed cycle, desulfurization and denitrification technology, applied in desulfurization, dust removal and resource recovery technology and environmental protection, denitrification fields, can solve the problems of difficult by-product treatment, high operating costs, secondary pollution, etc., to meet resource recovery and environmental governance requirements, reduce operating costs, and save resources

Inactive Publication Date: 2010-05-05
孙伟杰
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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 resources, the method can effectively solve the existing technology to overcome the by-product processing difficulties, secondary pollution, high operating costs, single product And other issues

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  • Method for desulfurating and denitrating and recovering sulfur resource in closed cycle way

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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] Such as 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. Resour...

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Abstract

The invention provides a method for desulfurating and denitrating and recovering sulfur resource in a closed cycle way, comprising the following steps: 1, dedusting; 2, desulfurating and denitrating; and 3, recovering sulfur resource. The method can effectively solves the problems of the prior art such as difficult treatment of secondary products, secondary pollution, high working cost, single product and the like. According to market requirement, analysis reduction regeneration of desulfurated secondary products is fully utilized, aiming at treating waste with waste to serve multiple purposes, recovering the wasted sulfur resource in flue gas of fire coal with the lowest cost, improving the comprehensive added value of desulfurated secondary products and reducing working cost thereof, dedusting, desulfurating and denitrating, and recovering sulfur resource to realize long-term efficient working, self-sufficient closed cycle, resources and energy conservation, low energy consumption, and no waste water discharge and secondary pollution, thereby meeting the requirements of resource recovery and environmental management, and improving economic benefit and social benefit for 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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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/60F23J15/00F23J15/04
Inventor 孙伟杰杨桂芬孙海博
Owner 孙伟杰
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