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JP2649375B2 |
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JP2648600B2 |
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JP2641738B2 |
An apparatus which comprises a burner (1), through which pulverized coal and carrier air are passed to be burnt in a combustion chamber (2), and a flame retainer (18) disposed at an end of the burner. The flame retainer includes a flared...
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JP2638040B2 |
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JPH09203505A |
To cool an inner flame holder without marring the ignition and flame holding of a burner for solid fuel, and further, to prevent slug from sticking to the inner flame holder. This burner has a primary passage 23 where the solid-gas two- ...
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JP2635294B2 |
PURPOSE: To reduce NOx without generating the deterioration in combustion efficiency as well as the increasing of size of a combustion device, in a pulverized coal burner. CONSTITUTION: In a pulverized coal burner provided with a pulveri...
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JPH09196314A |
To obtain a burner excellent in durability irrespective of the kinds of properties of fuels by placing a Benturi type concentration separator along a horizontal axis of a pulverized pipe. This pulverized coal burner comprises a pulverize...
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JPH09178116A |
To prevent a finely powdered coal deposition layer from being formed on a concentration adjusting ring and on an internal cylinder outer peripheral surface. This finely powdered coal burner is equipped with a burner inner cylinder 1, a b...
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JPH09178117A |
To adjust the concentration of finely powdered coal without use of a concentration adjusting ring. There are provided a burner inner cylinder 1, a burner outer cylinder 3 arranged to coaxially freely fit to the outside of the burner inne...
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JP2628957B2 |
PURPOSE: To raise the combustion efficiency by providing the first and second region within a combustion chamber to combust powder fuel with the first and second fuel jet means, and arranging the second fuel combustion means so that the ...
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JP2627552B2 |
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JPH09170714A |
To improve an igniting and flame holding characteristic of fine powder coal and reduce nitrogen oxides by a method wherein mixing of a mixture fluid and surrounding air is delayed and a high concentration area of fine powder coal is assu...
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JPH09159145A |
To make it possible to continue stable bubbling in nonferrous refining by providing a blow-through pipe via the inside of the inner tube of a cylindrical water-cooled tube. The pipe for bubbling comprises an iron blow-through pipe 1 and ...
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JP2619973B2 |
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JP2616808B2 |
PURPOSE:To make it possible to control the temperature of the furnace wall even during the operation under a low load by utilizing air used for secondary combustion and air used for two-stage combustion for cooling the body of a furnace ...
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JP2613596B2 |
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JPH09137917A |
To prevent the generation of clinker with a high combustion efficiency and reduce the generation of a nitrogen oxide as well. There are provided a cylinder-shaped combustion compartment main body 1 which forms a flame emission outlet on ...
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JPH09133323A |
To stop swirling of pulverized coal flow and form an igniting swirling flow by turbulent flow without deteriorating thick and thin fuel concentration separation effect by arranging flame stabilizing blocks above an inner cylinder of a pu...
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JP2606779B2 |
PURPOSE: To provide an array structure of low NOx cell burners which can reduce the concentrations of CO and H2S in a hopper of a furnace of a boiler without extremely adversely affecting the performance of a unit. CONSTITUTION: Each inv...
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JPH09105513A |
To eliminate the clogging of slurry fuel and to obviate the wear of a fuel injection port. The slurry fuel nozzle 9 supplies slurry fuel 8 to a furnace and burns it and comprises a dispersed air passage 32 having an air injection port 31...
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JPH09101015A |
To prevent the adhesion of slag to a furnace wall surface in the vicinity of a burner for a combustion device of coal and the like without employing any expansive power source. In a combustion device wherein solid fuel such as coal and t...
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JPH0972503A |
To suppress the generation of dioxin by burning Catrel(R) at a high temperature, to prevent the sticking of combustion ash to the heat transfer surface and to further suppress the intergranular corrosion of the surface with hydrogen chlo...
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JP2582419B2 |
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JPH0942611A |
To reduce the production of NOx in the ignition stage of coal dust by a method wherein an average ratio, consisting of the rate of oxygen in primary gas and a necessary amount of oxygen for burning combustible volatile constituents, is r...
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JP2523756Y2 |
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JP2575187B2 |
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JPH0921507A |
To provide a pulverized coal firing apparatus comprising a means for measuring the flow rate of air injected from a nozzle of a burner which gives the air a swirling flow and injects the air and a means for optimizing swirling intensity ...
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JPH0921506A |
To prevent slagging from occurring by providing a swirling device for swirling and injecting secondary air for combustion around a fuel injection nozzle and a plurality of tertiary air nozzles for injecting tertiary air from around the s...
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JP2565620B2 |
PURPOSE: To enhance an effect of suppressing the generation of NOx by jetting a fuel-air mixed gas containing pulverized coal from a burner, jetting secondary air and tertiary air concentrically from the outer periphery of the burner and...
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JPH08327017A |
PURPOSE: To revise the burner used for a gasifying furnace for gasifying coal under pressure. CONSTITUTION: This burner 3 inclined at the axis 25 of a burner end 3b with respect to the axis 22 of a burner tube body 3a is reciprocated in ...
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JP2559012B2 |
PURPOSE: To provide a structure capable of preventing the adhesion and growth of the mist of sintered ash contained in the gas exhausted from a gasification furnace in a duct or a reactor of a coal-gasification apparatus provided with th...
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JPH08312917A |
PURPOSE: To provide a low-NOx combustion method of pulverized coal, which is capable of unifying the concentration of pulverized coal in the outlet port of a burner nozzle to improve the stability of ignition and brightness of flame. CON...
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JPH08312918A |
To reduce emission and unburned components by outwardly diverting a portion of pulverized fuel and swirling the remain of fuel flow at the outlet of a fuel nozzle injecting the pulverized fuel by arranging a hollow diverting cone at the ...
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JPH08303734A |
PURPOSE: To stabilize combustion and burn unburnt char sufficiently, in a burner for combustion gas containing unburnt char. CONSTITUTION: In a burner for combustion gas containing unburnt char, a burner throat 13, expanded suddenly by a...
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JP2554144B2 |
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JPH08285231A |
PURPOSE: To prevent the adhesion of combustion ash to a furnace wall across a wide range by a method wherein a part of air stream in an air feeding flow passage is branched to provide an air inducing member for forming wall surface jet s...
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JPH08285230A |
PURPOSE: To provide a low NOx burner, capable of achieving the reduction of NOx without increasing a pressure loss of combustion air stream in the part of the burner and without reducing the diameter of the throat part of the burner. CON...
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JP2549622B2 |
PURPOSE:To strengthen mixing of gaseous O2 and material contg. C to raise combustibility and to shorten melting time for iron scrap, by providing a turning blade to a nozzle at top end of a flow path of gaseous O2 surrounding a flow path...
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JP2547550B2 |
An apparatus comprises a furnace (10), a burner (20), a mill (30), a dust coal storage (40), connecting pipes (51-56) with valves (51V-56V) and a CPU (80). In an initial stage of operation, dust coal supplied from the mill (30) is mixed ...
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JPH08270906A |
PURPOSE: To provide a powder fuel burner wherein production of nitrogen oxide is reduced and an apparatus is miniaturized. CONSTITUTION: There are provided a cylindrical combustion chamber 1 including a flame jet hole 3 at one end thereo...
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JPH08270931A |
PURPOSE: To provide a means for suppressing NOx to be evolved in the combustion of pulverized coal by a pulverized coal burner in an in-flame deoxidation system. CONSTITUTION: Light emitted from flames, which is viewed from a nozzle 3 fo...
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JP2544662B2 |
A pulverised fuel and air mixture is burnt in conditions giving relatively low NOx emissions by using a burner which has concentric passages (30,32,34) for a primary air-fuel mixture and secondary and ternary air flows respectively. In t...
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JP2541936B2 |
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JPH08254310A |
PURPOSE: To increase the stability of flame of a burner upon reducing the load of the burner and contrive the expanding of turn down. CONSTITUTION: The opening degree of a resistor vane for a burner 3 is controlled by a method wherein fi...
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JPH08226610A |
PURPOSE: To reduce the generation of NOx, and to reduce the corrosion of furnace walls, which is caused with H2S, by a method wherein pulverized coal burners for normal air ratio and pulverized coal burners for low air ratio are alternat...
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JPH08226615A |
PURPOSE: To improve combustion property and lower the height of the whole of a burner by a method wherein an oblong ignition stabilizing board is attached to the immediately rear part of the fuel injection port of a liquid fuel nozzle gu...
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JPH08219415A |
PURPOSE: To provide a burner for solid fuel and a pulverized coal firing equipment, capable of preventing the adhesion of slag to a flame stabilizer as well as cooling and reduced in the discharging concentration of NOx. CONSTITUTION: A ...
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JPH08219416A |
PURPOSE: To reduce the generation of NOx by a method wherein at least one kind of replacement parts, having different configurations, structures or sizes of parts with respect to the reduction of generation of NOx of combustion gas, are ...
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JP2527922B2 |
PURPOSE: To gasify fine powder coal in a reducing atmosphere of high temperature with pure oxygen or oxygen of high concentration and to supply it as a reducing gas of high temperature to a boiler furnace and a coal gasification furnace ...
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JP2528696B2 |
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