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JP05039904 |
PURPOSE: To provide a pulverized coal burner capable of coping with a large range of combustion load by holding an excellent state of flame even in the range where A/C value increases with the quantity of burning pulverized coal becoming...
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JP05005506 |
PURPOSE: To reduce auxiliary fuel and, besides, to improve the ignition stability of a pulverized coal burner. CONSTITUTION: An opening 26 making a condensed pulverized coal flow passage 19 and a thinned pulverized coal flow passage 20 c...
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JP05005507 |
PURPOSE: To prevent occurrence burnout of a flame stabilizing means and of slagging in the flame stabilizing means by providing a projecting body in extension into a furnace beyond the flame stabilizing means and by interrupting thereby ...
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JP04297705 |
PURPOSE: To ensure the long service life of a burner by completely burning fine grains of supplied powdery solid fuel. CONSTITUTION: A burner for burning fine grains of powdery solid fuel is constituted of a central internal tube 3 for s...
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JP04292702 |
PURPOSE: To enable execution of stable combustion in a wide range of the load and to prevent the occurrence of slagging by installing a flame stabilizer with a stepped part the cross section of which is increased and at the stepped part ...
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JP04283302 |
PURPOSE: To prevent slagging of ash on heat-exchanger tubes and burner parts and achieve reduction in the NOx emission and high-efficiency combustion by a method wherein a water-jetting nozzle is provided close to the center of the nozzl...
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JP04268104 |
PURPOSE: To reduce thermal NOx and fuel NOx emitted from a pulverized coal combustion apparatus. CONSTITUTION: A cooling medium injection pipe 20 is provided in a pulverized coal feed path 19 to cool down flame by injecting cooling mediu...
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JP04268103 |
PURPOSE: To stably perform combustion even when a fire-retardant fuel is used or load fluctuates considerably. CONSTITUTION: Secondary and tertiary air flow paths 13 and 14 are furnished around the peripheries of concentrated and lean pu...
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JP04214102 |
PURPOSE: To provide a burner structure and a boiler system in which the burner structure and the boiler system are especially suitable for reducing the generation of NOx CONSTITUTION: In a boiler system in which a pulverized coal burner ...
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JP04113103 |
PURPOSE: To reduce the wear of a burner nozzle by the pulverized coal by coating its inner face of the nozzle with a wear-resistant material such as 13Cr steel, ceramic, etc. CONSTITUTION: On the inner face, through which the pulverized ...
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JP04090412 |
PURPOSE: To obtain pulverized coal having high concentration by forming forked connection ends to the inner circumferences and outer circumferences of bent pipes while being formed so as to be joined on their midways of the bent pipes an...
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JP04090408 |
PURPOSE: To reduce the abrasion of the inner surface of a burner tip, and to prevent the generation of coarse particles during atomizing by installing each first mixing chamber in the inward oblique direction so that extensions in the di...
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JP04068203 |
PURPOSE: To extremely reduce discharge of contaminants, i.e., nitrogen oxides, carbon monoxide and total hydrocarbon, by employing a first combustion chamber using a relatively small quantity of fuel and relatively low or high percentage...
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JP04024404 |
PURPOSE: To reduce the consumption of auxiliary fuel and improve the igniting stability of a pulverized-coal burner to allow performing high frequent start-and-stop operation (DSS) at a low load by a method wherein during start-up of a m...
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JP04020702 |
PURPOSE: To provide a pluverized coal burner in which the use of auxiliary fuel is reduced and yet the stability of ignition is improved and which is capable of operating at a low load in highly frequent starting and stopping of the oper...
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JP04009511 |
PURPOSE: To facilitate to cope with load variation and achieve low NOx combustion by providing both a mixed gas flow channel for pulverized coal and primary air in mixture and a secondary air channel with a member which reduces the cross...
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JP03286905 |
PURPOSE: To provide a burner burning solid fuel with good ignitability by providing a first separator which separates the solid fuel mixture gas into a high concentration solid fuel mixture gas and low concentration solid fuel mixture ga...
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JP03241208 |
PURPOSE: To displace pulverized coal in a pulverized coal injection nozzle within a primary transmitting air to make a partial high concentration and to make a stable combustion in a pulverized coal burner under a low load of a mill by a...
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JP03233206 |
PURPOSE: To automate the clearing of a choked section with simple manipulation by supplying incombustible fine particles momentarily into an inner pipe in a captioned burner, such as a fuel furnace that forces powder solid fuel to come c...
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JP03230003 |
PURPOSE: To enhance the coal drying ability to increase the adaptability to many sorts of coal and improve the boiler efficiency by a method wherein waste gas is extracted from a flue and mixed into air which is extract from an air duct ...
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JP03211304 |
PURPOSE: To carry out stable combustion and, furthermore, save the amount of auxilia ry fuel that is used by providing a pulverized coal nozzle on the side of thick flow at the tip end of a pulverized coal nozzle and arranging the pulver...
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JP03161016 |
PURPOSE: To reduce the number of jet pipes to a large extent by providing a means for supplying a flocculated fine powder and a fine powder disintegrating high pressure gas, and a means for supplying combustion gas and fine powder mixing...
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JP03134093 |
PURPOSE: To permit sufficient mixing of a raw material and an oxidizing agent, thus increasing gasification efficienty in a entrained bed gasifier where a solid carbonaceous raw material is pulverized, transported, and heated in the pres...
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JP03129202 |
PURPOSE: To enable a pulverized coal flow of a high concentration to be attained even if a flow speed under a low load is delayed by a method wherein a classification concentration adjuster partitioned into a high concentration flow pass...
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JP03110308 |
PURPOSE: To improve the flame holding property of a burner even in the case where the concentration of the pulverized coal is low by providing a classification element for pulverized coal and a guide cylinder for air flow and adjusting t...
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JP03075403 |
PURPOSE: To burn pulverized coal stably even for a high fuel ratio and low load combustion by constituting a pulverized coal pipe of an outside pulverized coal pipe of a tapered construction and an inside pulverized coal pipe which has a...
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JP03050408 |
PURPOSE: To reduce the quantity of an auxiliary fuel required and enhance stability of ignition, by providing a concentrator for varying the concentration of pulverized coal and a movable valve opened and closed on the upstream of the co...
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JP03036413 |
PURPOSE: To separate stably the molten part from objects to be melted by providing an inclining second stage revolving melting chamber with an air port into which the combustion air is blown below the lower end section of a first stage r...
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JP03036408 |
PURPOSE: To enhance the thermal efficiency of a whole plant by arranging on the same axis a first stage combustion chamber and second stage combustion chamber to produce high temperature plasma and a power generating channel which is con...
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JP03025202 |
PURPOSE: To enable uniform distribution of a raw material to burners by a method wherein gas injection nozzles to inject gas, e.g. inactive gas, to an outlet part and joins it with a carbon powder raw material are mounted on the upper st...
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JP02298703 |
PURPOSE: To allow the burner to contrive low NOx by providing a contracted part in a pulverized coal feed pipe of a denitrification burner to arrange a resistor so as to allow the flow of pulverized coal to go toward the center of a furn...
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JP02282611 |
PURPOSE: To provide as one body a sludge supply pipe and air supply pipe and providing a cooling medium flow channel in the inside of a burner and exposing the tip end of the burner on the side wall in a furnace. CONSTITUTION: A sludge b...
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JP02267404 |
PURPOSE: To continue stable combustion from the time of a high load to the time of a low load by connecting a pulverized coal pipe to the outer cylinder of a pulverized coal burner in the direction tangential to the cylinder and providin...
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JP02259309 |
PURPOSE: To provide a stable combustion and to save auxiliary fuel by a method wherein a flow of fine powder fuel is struck against a distributing plate within a vortex pipe, its direction is changed toward a crossing direction to form a...
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JP02259308 |
PURPOSE: To provide a stable combustion under a minimum load and to save an amount of auxiliary fuel oil by a method wherein some fine powder coals are changed for their directions toward a crossing direction within a supply cylinder, th...
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JP02217703 |
PURPOSE: To make it possible to regulate the concentration of pulverized coal in a fluid stagnation zone by providing a sleeve of cone shape with its end being larger than its inner portions in the throat of a main burner, forming the fl...
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JP02206688 |
PURPOSE: To effectively remove deposits without stopping the supply of a powdery solid fuel by superimposing a plurality of tubes on the same axis and disposing the deposit-removing bar reciprocatively moving in the axial direction by a ...
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JP02206687 |
PURPOSE: To prevent the wear and temperature raising of portions near the tip of a burner by superimposing a plurality of inner tubes on the same axis and disposing such a passage as bringing a cooling water into contact with the outer w...
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JP02183703 |
PURPOSE: To improve the burning rate of pulverized coal by its characteristic that it contains more than a certain amount of particles which have particles whose particle diameters are below a certain value. CONSTITUTION: In the burning ...
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JP02169910 |
PURPOSE: To prevent the sticking of solid fuel in the handling device, improve the pulverization efficiency and control the secondary granulation by adding a certain type of surface active agent of anion group at the time of burning soli...
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JP02169911 |
PURPOSE: To prevent the sticking of solid fuel in the handling device, improve the pulverization efficiency and control the secondary granulation by adding to the pulverized solid fuel a compound comprising the sodium salt or ethanolamin...
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JP02133703 |
PURPOSE: To enable recovery of a latent near and recovery of gas itself by a method wherein air and pulverized coal are charged from the direction of a tangential line, charged air produces oxygen enriched air to generate high temperatur...
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JP02126017 |
PURPOSE: To reduce NOx, decrease an air ratio in response to an increased temperature when a load is increased and to improve a combustion efficiency by a method wherein the air ratio is increased in response to a reduction in temperatur...
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JP02126013 |
PURPOSE: To enhance stability and durability against severe environmental stress by employing a lined coaxial shielding conduit converging outward, at the downstream end thereof, from the longitudinal central axis and a central outlet pi...
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JP02126005 |
PURPOSE: To enable a slag separating efficiency to be increased by a method wherein a main combustion unit having a fuel feeding nozzle and an air feeding nozzle directed in a tangential direction and a sub-combustion unit having a combu...
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JP02122103 |
PURPOSE: To form a large recirculation region in the neighborhood of a burner to disperse pulverized coal in a pulverized coal concentrated flow so as to prevent primary air and the pulverized coal from turning by providing a concentrato...
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JP02115611 |
PURPOSE: To prevent the slag flowdown port of a cyclone combustion furnace from clogging by inserting an optical sensor to the port at its downstream side, and detecting the quantity of light at the lower part of the port. CONSTITUTION: ...
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JP02110202 |
PURPOSE: To make it easy to burn powder fuel which is not readily combustible by providing bridge-shaped passageways between slit-shaped ejection openings for fuel and the other ejection openings for fuel as means by which a void space c...
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JP02106614 |
PURPOSE: To contrive the removal and melting of the accumulation and adhesion of slag by providing another cool gas supply pipe opened equal to or lower than the opening position of a cool gas supply pipe of a combustion gas outlet to te...
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JP02103286 |
PURPOSE: To readily produce a combustible gas containing much NH3 and reduce the concentration of S compounds, such as H2S, by feeding a nitrogen- substance into a cyclone body. CONSTITUTION: Powdered coal and air are fed into a cyclone ...
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