Coal-powder boiler oxygen-enriched combustion smoke near-zero emission and power generation system
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An oxygen-enriched combustion and near-zero emission technology, applied in the field of coal-fired boilers in power stations, can solve problems such as recycling, increasing operating costs, and resource waste, and achieve the effects of reducing scaling, slowing down the greenhouse effect, and improving commercial value
Inactive Publication Date: 2015-11-18
SICHUAN CHUANGUO BOILER
View PDF14 Cites 9 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, these measures for the emission of fossil fuel combustion products are not well combined. They are all independently considered to remove them, and chemical raw materials such as sulfides and nitrogen oxides are not recycled, which increases operating costs and a waste of resources
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below with accompanying drawings.
[0025] figure 1 It is an example of a pulverized coal furnace oxygen-enriched combustion flue gas near-zero emission power generation system. The pulverized coal furnace oxygen-enriched combustion flue gas near-zero emission power generation system consists of a boiler (1), a burner (2), an air separation device (3), and a system. Powder system (4), flue gas preheater (5), low temperature heat exchanger (6), dust collector (7), recirculation fan (8), induced draft fan (9), ultra-low temperature heat exchanger (10), Condensation heat exchanger (11), dehydration device (12), SO2 separation device (13), CO2 capture device (14), filter dust collector (15), N 2 Separator (16), NOx reaction device (17) and chimney (18).
[0026] The air separation device (3) is connected with the burner (2) and the primary air pipe (19), and the separ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention provides a coal-powder boiler oxygen-enriched combustion smoke near-zero emission and power generation system. The system is composed of a boiler, a burner, an air separation device, a powder production system, a multi-stage heat exchanger, a multi-stage deduster, a recirculation draught fan, an induced fan, a dewatering device, an SO2 separation device, a CO2 capture device, an N2 separator, an NOx reaction device and the like. It is ensured that coal powder of different coal types is ignited in time, burns stably and burns out by changing the oxygen concentration of primary air and secondary air and the total oxygen amount, the efficiency of the boiler is improved, and the adaptability of the boiler to loads and coal types is enhanced. Dust, vapor, SO2, NOx, CO2 and the like caused by combustion smoke of coal powder are recycled through all the devices, so that harmful gas, fine particles and microelements in smoke are integrally removed. Meanwhile, the smoke exhaust temperature is reduced to be close to the atmospheric temperature, so that near-zero emission of smoke is achieved, environment protection is achieved, and resource utilization is maximized.
Description
technical field [0001] The invention relates to a coal-fired boiler technology for a power station, in particular to an oxygen-enriched combustion near-zero-emission power generation technology for a pulverized coal boiler. Background technique [0002] With the development of human industry, the environment and climate change issues have become the concerns of the whole world. The flue gas produced by the combustion of fossil fuels in the power station industry brings a large amount of dust, sulfide, nitrogen oxides and a large amount of carbon dioxide. The combustion products produced by the combustion of fossil fuels have a huge adverse impact on the environment and climate. However, the power station industry, which uses fossil fuels as raw materials, occupies an important position in the use of fossil fuels, and has also become a relatively concentrated source of carbon dioxide and other pollutant emissions, with huge emissions. Therefore, the control and treatment of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more