Patent application number | Description | Published |
20090031933 | DISPOSAL METHOD AND EQUIPMENT FOR EXHAUST GAS FROM COMBUSTION SYSTEM - Carbon dioxide in combustion exhaust gas can be effectively separated and the combustion exhaust gas including the other exhaust gas components condensed through the separation of carbon dioxide can be discharged to the atmosphere. | 02-05-2009 |
20090272300 | METHOD AND APPARATUS FOR CONTROLLING COMBUSTION IN OXYGEN FIRED BOILER - Provided are a method and an apparatus for controlling combustion in an oxygen fired boiler which are easily applicable to an existing air fired boiler for easy and stable control of the combustion. | 11-05-2009 |
20090308292 | COAL BURNING BOILER APPARATUS - 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. | 12-17-2009 |
20100058961 | PULVERIZED COAL BURNER - Slagging is prevented from occurring in a pulverized coal burner. | 03-11-2010 |
20110045421 | METHOD AND APPARATUS OF CONTROLLING OXYGEN SUPPLY FOR BOILER - An apparatus of controlling oxygen supply for a boiler having wind boxes | 02-24-2011 |
20110048295 | METHOD AND FACILITY FOR FEEDING CARBON DIOXIDE TO OXYFUEL COMBUSTION BOILER - Provided are fuel feed means | 03-03-2011 |
20110083594 | METHOD AND APPARATUS OF CONTROLLING OXYGEN SUPPLY IN OXYFUEL COMBUSTION BOILER - Provided are a method and an apparatus of controlling an oxygen supply in an oxyfuel combustion boiler capable of attaining stable oxyfuel combustion even when properties of coal are changed. A boiler-brought-in oxygen density is obtained when coal with a fuel ratio measured by fuel measuring means | 04-14-2011 |
20110104624 | METHOD AND APPARATUS OF CONTROLLING COMBUSTION IN OXYFUEL COMBUSTION BOILER - A method and an apparatus of controlling combustion in an oxyfuel combustion boiler are provided which ensure a sufficient furnace heat absorption through prevention of lowering of flame temperature, enabling oxyfuel combustion operations to be performed in a stable manner. A boiler-brought-in oxygen density which is an oxygen density for a total amount of gases introduced into a coal burning boiler is calculated and a flow rate of total recirculating gases is controlled such that the boiler-brought-in oxygen density falls within a predetermined range. | 05-05-2011 |
20110107944 | METHOD AND APPARATUS OF CONTROLLING EXHAUST GAS IN OXYFUEL COMBUSTION BOILER - Provided are a method and an apparatus of controlling exhaust gas in an oxyfuel combustion boiler which can attain stable combustion of the boiler while an amount of unburned combustibles and a NO | 05-12-2011 |
20110126742 | METHOD AND APPARATUS OF CONTROLLING FLOW RATE OF PRIMARY RECIRCULATING EXHAUST GAS IN OXYFUEL COMBUSTION BOILER - Provided are a method and an apparatus of controlling a flow rate of a primary recirculating exhaust gas in an oxyfuel combustion boiler, capable of realizing a stable combustion by a burner in oxyfuel combustion. Weight ratio of flow rate of primary recirculating exhaust gas [ton/h] to amount of pulverized coal from a mill [ton/h] is defined as G/C, and the flow rate of primary recirculating exhaust gas is controlled so that the G/C falls within a given range. | 06-02-2011 |
20110126780 | PULVERIZED COAL BURNER FOR OXYFUEL COMBUSTION BOILER - In order to provide a pulverized coal burner for an oxyfuel combustion boiler which attains uniform combustion from a pulverized coal burner and which constrains a temperature rise of an oxygen injection nozzle, burner inner and outer cylinders are arranged to penetrate a wind box | 06-02-2011 |
20110132243 | METHOD AND APPARATUS OF CONTROLLING EXHAUST GAS IN OXYFUEL COMBUSTION BOILER - In an apparatus of controlling an exhaust gas in an oxyfuel combustion boiler having the boiler | 06-09-2011 |
20120227644 | OXYGEN MIXER FOR OXYGEN COMBUSTION BOILER - In an oxygen mixer for an oxygen combustion boiler, circulating exhaust gas heated in a rotary preheater is mixed with oxygen. Resultant mixed gas is guided to a boiler furnace through a combustion gas duct having bends. At the bend closest to the rotary preheater in the combustion gas duct, an oxygen injection nozzle is arranged to have a plurality of injection ports for injection of oxygen into circulating exhaust gas. | 09-13-2012 |
20130302739 | METHOD AND APPARATUS FOR CONTROLLING OPERATION OF OXYFUEL COMBUSTION BOILER - Stable operation of oxyfuel combustion boiler is ensured and amplification in likelihood of or downsizing of forced draft fan is attained. Upon change of commanded boiler load from start value to target value by target time, a feed amount of oxygen from oxygen producing device is regulated for attainment of oxygen concentration on entry side of the boiler body from reference value to attainment point or target entry-side oxygen concentration within entry-side oxygen concentration regulation range by target time. After attainment to attainment point, control is made to return entry-side oxygen concentration to reference value at return point. Airflow rate of forced draft fan is controlled with change rate smaller than change rate with which air flow rate of forced draft fan reaches target value by target time. | 11-14-2013 |