Boiler for generating power by combusting exhausting gas of yellow phosphorus

Abstract

The invention discloses a boiler for generating power by combusting exhausting gas of yellow phosphorus, belonging to the field of boilers. A boiler body is integrally of as a novel boiler structure arranged in a horizontal n shape, a boiler convection tube bank and a boiler hearth are respectively arranged at the left side and the right side of the boiler body, an overheater is arranged in a transverse straight flue at the rear parts of the boiler convection tube bank and the hearth, and the boiler convection tube bank is a straight flue; because smoke linearly flows for scouring a tube, possibility of condensing various corrosive matters on the tube because the smoke generates a vortex zone at a corner is avoided; and the hearth is provided with a corrosion-preventing water-cooling wall and controls smoke temperature at an outlet of the boiler convection tube bank, corrosion related to the tube of the boiler body is reduced furthest completely due to the adoption of the boiler, problems of failure in an early phase and long service life caused by serious corrosion due to the adoption of the exhausting gas of yellow phosphorus as the fuel in the power generating boiler are solved actually, heat energy of the exhausting gas of yellow phosphorus is effectively recycled, energy resources are greatly saved and environment is favorably protected.

Description

technical field [0001] The invention relates to a boiler for generating electricity by burning yellow phosphorus tail gas, belonging to the field of boilers, in particular to a boiler for generating electricity. Background technique [0002] For a long time, in my country's phosphorus chemical industry, a large amount of corrosive tail gas (received base low calorific value Q net，ar =~1200KJ / Nm 3 , Composition: CO: 89-91%, other components mainly include: S: 3-13g / Nm 3 ;As: 0.07-0.08g / Nm 3 ; P: 0.5-3g / Nm 3 ), sent through pipelines to burn in the sky above the factory building, the heat of combustion is not used and wasted, and leads to the aggravation of the atmospheric greenhouse effect. [0003] Under the guidance of national energy conservation, emission reduction and sustainable development policies, it is even more important to develop boiler products that can burn yellow phosphorus tail gas, especially to develop power generation boilers that can burn yellow phosp...

AI Technical Summary

Problems solved by technology

Obviously, superheater equipment cannot be installed between the drum and the left and right headers. Therefore, the quick-installation "A" type boiler structure cannot be used for yellow phosphorus tail gas power generation boilers

[0007] 3. Ordinary burning yellow phosphorus tail gas boiler, such as Chinese patent ZL200920111254, the boiler is mainly composed of burner 1, adiabatic combustion furnace 2, flue gas connecting pipe 3, waste heat boiler 4 and flue gas port 5, and there is no heating in the adiabatic combustion furnace surface structure

There is no water-cooled wall in the furnace of this design, and more than 55% of the heat absorbed by the water-cooled wall of the furnace is absorbed in the waste heat boiler, resulting in a very large volume of the waste heat boiler and too many heating areas; the heat loss of the adiabatic combustion furnace is large; the adiabatic combustion furnace cannot It is used in the furnace design of power generation boilers, and this type of boiler structure cannot be used in the design of yellow phosphorus tail gas power generation boilers

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