Ignition Coal Boiler Patents

Burner ignition system (Patent) | DOE Patents

@article{osti_865743, title = {Burner ignition system}, author = {Carignan, Forest J}, abstractNote = {An electronic ignition system for a gas burner is battery operated. The battery voltage is applied through a DC-DC chopper to a step-up transformer to charge a capacitor which provides the ignition spark.

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pulverized coal ignition - terschellingveldzicht.nl

Laser Ignition of Pulverized Coals - Cal Poly. to examine pulvcrized-coal ignition. Most arc described in the review by Essenhigh et al. (21­ The ignition behavior of clouds of pulverized fuel is of greatest interest to those concerned with the prevention of dust explosions (in coal mines or grain elevators, for example) and with flame stabiliry in coal-fired combustors (3-5].

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System and method for reducing emissions from a boiler - Justia

Oct 07, 2015 · Justia Patents Means For Pulverizing Solid Fuel US Patent for System and method for reducing emissions from a boiler Patent (Patent # 10,502,415)

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CN103776028A - Micro-oil ignition system and - Google Patents

The invention discloses a micro-oil ignition system and a micro-oil ignition method applicable to a W-type flame boiler. The micro-oil ignition system comprises a pulverized coal preparation system, a pulverized coal storage system, a pulverized coal conveying system, a boiler body, a micro-oil ignition pulverized coal burner, an original burner and a pulverized coal distributor, wherein the

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Burners and overfire air (OFA) - Babcock & Wilcox

Since 1971, B&W has sold low NO x combustion systems for more than 120,000 MW of generating capacity in both new and retrofit boiler applications. Our low NO x burner technology has been successfully applied to a broad range of B&W and non-B&W units with varying fuel characteristics and boiler arrangements.

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US20090308292A1 - Coal burning boiler apparatus - Google Patents

In a coal burning boiler apparatus, temperature of the pulverized coal to be fed to the boiler can be set depending on the property of the combustion coal, so that stable ignition and combustion can be made regardless of the property of the combustion coal fed.

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Coal-burning boiler's ignition burner - Free Patents Online

Apr 04, 2006 · The invention claimed is: 1. An ignition and burning apparatus used in a coal boiler, comprising a pulverized coal burner (3) and one or more miniature oil guns (14) inserted in the pulverized coal burner, wherein the miniature oil gun (14) comprises a first air supplying cylinder (10), an atomizing nozzle (17) positioned in the first air supplying cylinder, an oil burner (15) at a lower end

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CN2591434Y - High-temperature air ignitor for pulverized-fuel

- Google Patents The utility model relates to a high-temperature air ignitor for a pulverized coal fired boiler, which belongs to the technical field of an auxiliary machine of a boiler. An oil

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Boiler cold start using pulverized coal in ignitor burners

Abstract. An ignition, warm-up and low-load-stabiliztion system for furnaces fired by pulverized coal is described. In conjunction with a system in which pulverized coal is sent directly from a coal mill to a load-bearing nozzle and in which combustion air is brought to the nozzles from an air preheater that uses hot furnace gases to warm the combustion air, ignitor nozzles are provided that

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US4241673A - Direct ignition of pulverized coal - Google Patents

The direct ignition of pulverized coal in accordance with the present invention contemplates the delivery of a dense phase coal/air stream to an ignition zone where it receives ignition energy and the thus ignited mixture is thereafter contained in a recirculation region until the flame becomes self-sustaining.

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Fuels and Chemicals - Autoignition Temperatures

Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency Related Documents Alternative Fuels - Properties - Properties of alternative fuels like Biodiesel, E85, CNG and more

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Automated coal-fired boiler - Patent search, search patents

1. Automated coal boiler, containing hopper for solid fuel, perpendicular to it, located the feeder fuel burning device, the mouth of austo air supply, water-cooled furnace comprising a combustion chamber and the afterburner, the inside lined with refractory bricks, heat exchanger, ash tray, and a block of automation and electric drive, wherein the boiler further provided with two gravity

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Device for igniting and stabilizing solid fuel combustion

A device for igniting and stabilizing the combustion of pulverized coal, containing the plasmatron introduced into the chamber ignition connected to the feed channel pulverized coal. The device provides the input channels of compressed air, control parameters which, in particular, a reciprocating plasmatron (patent RU 2216690 C2, CL F23Q 5/00

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(PDF) Plasma-Supported Coal Combustion in Boiler Furnace

askarov a et al.: plasma supported coal combustion in boiler furna ce 1613 Fig. 13. Temperature in cross section of the furnace along the furnace height, on the level of lower layer of the burners

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Boiler cold start using pulverized coal in ignitor burners

Nov 06, 1979 · What is claimed is: 1. In a furnace system that includes a furnace, a main coal nozzle arranged to direct coal into the furnace, an air preheater having a flue-gas inlet, an air inlet, and an air outlet and being connected to receive flue gases from the furnace at its flue-gas inlet and transfer heat from the flue gas to air entering the air inlet and leaving the air outlet, a main pulverizer

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US Patent Application for COMBUSTION BURNER, SOLID-FUEL

As such a pulverized-coal-combustion boiler or such a combustion burner, for example, pulverized-coal-combustion boilers or combustion burners disclosed in Patent Literatures below are known. CITATION LIST Patent Literature Patent Literature 1: Japanese Laid-open Patent Publication No. 08-135919

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Boiler Fuel Firing System - wbpdclewf.org.in

Un balance in Coal- air flow in to the furnace results in uneven heat release , uneven distribution of excess air and unpredictable Nox formation 1. Selection of Orifices for Coal air two phase flow regime. 2. Provision of on -line adjustment dampers in coal air flow path. 3.On-line measurement of coal -air flow using microwave techniques 4.

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CN102226530A - Ignition method for power station boiler

The ignition method of power station boiler pulverized coal fuel of the present invention, the boiler startup process is saved 3355.9 tons of fuel oils, 2,584 ten thousand yuan of cost savings with 644.1 tons of oil. Adopt conventional method, about about 90 tons of the each fuel oil of 660MW unit cold start.

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Rapid ignition of fluidized bed boiler(Patent) | DOE Patents

A fluidized bed boiler feed system for the combustion of pulverized coal. Coal is first screened to separate large from small particles. Large particles of coal are fed directly to the top of the fluidized bed while fine particles are first mixed with recycled char, preheated, and then fed into the interior of the fluidized bed to promote char burnout and to avoid elutriation and carryover.

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