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| Number | Title | Issue Date |
| 7318381 | Methods and systems for determining and controlling the percent stoichiometric oxidant in an incinerator Methods and systems for measuring and controlling the percent stoichiometric oxidant in the pyrolyzing section of incinerators are provided. The methods and systems rely on measurements of the oxygen concentration and temperature of the gases within the pyrolysis se... | 01/15/2008 |
| 7104460 | Method and controller for determining carbon dioxide emissions from a recirculating air heater A method of determining the amount of air flowing through an outside air damper of a recirculating air heater includes the steps of sensing an amount of airflow flowing through the damper, recording the amount of airflow and a damper position value at a plurality of... | 09/12/2006 |
| 5997278 | Apparatus for providing an air/fuel mixture to a fully premixed burner Apparatus provides an air/fuel mixture to a fully premixed burner and comprises means for providing fuel at a variable flow rate to the burner, means for supplying air at a variable flow rate to the fuel to form the mixture, means for sensing aeration of ... | 12/07/1999 |
| 5957063 | Combustion system and operation control method thereof A combustion system is divided into a thermal decomposition section and a combustion section. The thermal decomposition section thermally decomposes or partially bums solid combustibles, thereby generating combustible gases. The quantity or quality of the... | 09/28/1999 |
| 5890444 | Method for determining the average radiation of a burning bed in combustion installations and for controlling the combustion process For determining the average radiation of a surface region of a burning bed, an infrared camera is used in a firing installation, which camera is aligned with this region and is equipped by means of appropriate flame filters in such a way that it operates ... | 04/06/1999 |
| 5582137 | Compact boiler having low NOX emissions Method and apparatus for reducing the NOX levels in stack emissions of compact boilers and fluid heaters through selective injection of exhaust flue gases into the combustion process. Flue gas injection into the primary and secondary air of the burner alo... | 12/10/1996 |
| 5471957 | Compact boiler having low NOx emissions Method and apparatus for reducing the NOX levels in stack emissions of compact boilers and fluid heaters through selective injection of exhaust flue gases into the combustion process. Flue gas injection into the primary and secondary air of the burner alo... | 12/05/1995 |
| 5280756 | NOx Emissions advisor and automation system A method and system for controlling and providing guidance in reducing the level of NOx emissions based on controllable combustion parameters and model calculations while maintaining satisfactory plant performance and not causing other harmful ... | 01/25/1994 |
| 5230293 | Method and apparatus for controlling a refuse incineration plant A multi-loop control system and a method for using the control system to even out the generation of heat produced by a refuse incineration plant. The quantity of steam generated is controlled as a primary controlled variable and the oxygen content of the ... | 07/27/1993 |
| 5203687 | Control system for burner A control system for a burner is disclosed which detects oxygen concentration in a room using an oxygen sensor, to thereby supply an abnormality detecting signal to at least one of an alarm and a combustion reducing device to actuate it when oxygen concen... | 04/20/1993 |
| 5176086 | Method for operating an incinerator with simultaneous control of temperature and products of incomplete combustion A method for operating an incinerator wherein fuel is provided into the incinerator separate from combustible waste and upon an increase in oxygen demand, initially refraining from proportionately increasing the oxygen provided into the incinerator and re... | 01/05/1993 |
| 5160259 | Draft control method and apparatus for material processing plants A draft control for material processing apparatus, such as asphalt plants, having a chamber through which material to be processed is passed for contact with combustion gases and heat originating in a fuel supplied burner which may require a draft to draw... | 11/03/1992 |
| 5112215 | Apparatus for combustion, pollution and chemical process control Disclosed is a system for regulating the efficiency of a combustion process by detecting radiant energy emitted from ash particles entrained in the gas stream exiting the combustion chamber of a boiler or incinerator. The intensity of selected wavelengths... | 05/12/1992 |
| 5010827 | Apparatus for detecting carryover particles in the interior of a furnace An apparatus for detecting the presence of carryover particles in an upper region of a furnace, such as a smelt bed boiler, includes plural spaced apart detectors. These detectors monitor discrete portions of the interior of the furnace for the purpose of... | 04/30/1991 |
| 4984524 | Technique for controlling the combustion of fuel having fluctuating thermal values The combustion of fuel having a highly fluctuating thermal value is controlled to permit optimization of air supply and reduction of waste gas impurities. The fuel passes through a combustion chamber having a degassing and evaporation zone, a primary comb... | 01/15/1991 |
| 4981087 | Method for regulating the furnace output in incineration plants The method for regulating the furnace output in incineration plants, particularly waste incineration plants, in which the O2 moist content measured in the flue gas is used as an overriding reference value regulating variable for regulating the ... | 01/01/1991 |
| 4942832 | Method and device for controlling NOx emissions by vitiation A furnace for controlling flame temperature and emission of NOx comprising a burner to which fuel and air are supplied and product of combustion are discharged, wherein said air is vitiated with said products of combustion; a means for sensing furnace ope... | 07/24/1990 |
| 4895082 | Technique for controlling the combustion of fuel having fluctuating thermal values The combustion of fuel having a highly fluctuating thermal value is controlled to permit optimization of air supply and reduction of waste gas impurities. The fuel passes through a combustion chamber having a degassing and evaporation zone, a primary comb... | 01/23/1990 |
| 4793268 | Method for controlling additive feed in a boiler system The method of operation of a boiler system to which an additive is to be fed at a controlled rate and in which the optimal additive rate depends upon a plurality of changing parameters of the boiler system, in which the relationship between each of those ... | 12/27/1988 |
| 4782766 | Automatic combustion control for a rotary combustor A combustion controller controls the supply of combustion gas to the combustion barrel of a rotary combustor used for incinerating solid waste material. The rotary combustor includes a combustion barrel having a gas-porous side wall and windboxes undernea... | 11/08/1988 |
| 4768469 | Operation control apparatus for recovery boilers An apparatus for controlling operation of a recovery boiler for compensating a predetermined reference temperature of black liquor by a compensation value in accordance with a type of an injecting gun provided in the boiler, a compensation value set by th... | 09/06/1988 |
| 4761744 | Method and device for determining heats of combustion of gaseous hydrocarbons A method and device 15 is provided for a quick, accurate and on-line determination of heats of combustion of gaseous hydrocarbons. First, the amount of oxygen in the carrier stream air is sensed by oxygen sensing system 20. Second, three individual volume... | 08/02/1988 |
| 4742783 | Incinerator combustion air control For continuous combustion air control in a hazardous waste incinerator, two signals are generated which totalize the air required on a fuel supplied basis. One signal is responsive to measured totalized fuel flow and this total can include fuel flow signa... | 05/10/1988 |
| 4717071 | Combustion trim control apparatus A modification of a basic jack-shaft control apparatus for a combustion system to provide a trim control. A first radial arm is mounted on a first rotating shaft which controls a fuel valve and a second radial arm is mounted on a second rotating shaft whi... | 01/05/1988 |
| 4716843 | Waste fuel combustion system A system for utilizing a fuel having a high ash content, water content in excess of 50% and large particles of combustibles is shown which includes a holding tank for the fuel. Fuel is circulated in the holding tank to maintain the consistency of the fuel... | 01/05/1988 |
| 4698015 | Installation for monitoring the functioning of a boiler An installation for monitoring combustion to control pollution and retard other deleterious effects of improper combustion employs a smoke sampling duct to draw off a portion of the smoke emanation from the combustion chamber. The smoke in the sampling du... | 10/06/1987 |
| 4690634 | Method of measuring dry substance in flue gases The invention relates to a method of measuring dry substance in the flue gas in liquor recovery units in mills for the manufacture of papermaking pulp in order thereby to render it possible to control the operation of the unit. According to the invention,... | 09/01/1987 |
| 4685072 | Steam generator on-line efficiency monitor A system for the automatic and continuous determination of the efficiency of a fossil fuel-fired vapor generator for utilization by an automatic load control (88) to control the distribution of the system load among a plurality of generators, wherein vari... | 08/04/1987 |
| 4659306 | Method of and system for determining the ratio between the oxygen-carrying gas content and the fuel content of a mixture For determining the ratio in which two constituents are blended in a mixture comprising an oxygen-carrying gas and a gaseous fuel to be combusted by a primary combustion system, the thermodynamic conditions (composition, pressure, temperature) of the two ... | 04/21/1987 |
| 4655392 | Steam-generator control method A steam-generator control method is proposed for controlling the mass flows f an oxidant and a fuel which are supplied for combustion. In order to control the flows at stoichiometric ratios with a required accuracy, the controlled variables are established... | 04/07/1987 |
| 4638789 | Safety apparatus for combustion device A CO sensor is mounted on the heat exchanger of a gas water heater (or other combustion unit) and is connected in circuit with a detecting unit mounted separately from the heater. The detecting unit generates a control voltage in opposition to a reference... | 01/27/1987 |
| 4627244 | Cryogenic cooling A process is provided for carrying out the cryogenic cooling of a material which comprises introducing material to be cooled into an elongated cryogenic tunnel housing on means for conveying said material from an inlet end to an outlet end, spraying liqui... | 12/09/1986 |
| 4622004 | Gas burner system The burner system includes an apertured burner plate with low thermal conductivity which is adapted to be positioned in a closed combustion chamber. A mixing chamber below the combustion chamber has a gas inlet and an air inlet. A fan is operatively arran... | 11/11/1986 |
| 4576570 | Automatic combustion control apparatus and method A method and apparatus for controlling the combustion of multiple fuels, especially fuels having diverse combustion air requirements. A heating rate demand signal indicative of the heating rate desired is generated and is compared with a fuel based fuel h... | 03/18/1986 |
| 4574710 | Turbo burner coal powered turbine energy system A combustion system to utilize particulate fuel where the fuel is compressed and extruded into a selected shape to be burned in a combustion chamber under conditions where particles of burning material are maintained in the combustion chamber until the we... | 03/11/1986 |
| 4575334 | Loss minimization combustion control system A system for minimizing combustion operation losses includes measuring a load index for the combustion operation which is proportional to the fuel demand or the output thereof, measuring an amount proportional to the air heating losses of the combustion o... | 03/11/1986 |
| 4574746 | Process heater control A method for controlling a process heater in which a required heat demand is computed based on the enthalpy of the feed stock and the desired enthalpy of the final product, and then used as a feedforward portion of the fuel control. A second embodiment of... | 03/11/1986 |
| 4553924 | Jackshaft controlled boiler combustion control system An improved combustion control system for a jackshaft controlled boiler or the like utilizes a second power actuator, a linkage biasing mechanism and a function generator which provides a position control signal as a function of the boiler load in order t... | 11/19/1985 |
| 4551088 | Combustion control system The well-known "jackshaft" positioning or two-point parallel combustion control system has been modified to include a linkage strut length adjustor apparatus with a remote actuator apparatus. The adjustor apparatus includes an overload protection system t... | 11/05/1985 |
| 4543056 | Safety device for fan heater The safety valve of a fan heater is operated by a detector pipe, the outlet of which is shielded from its inlet and communicates with the warm wind circulating fan of the heater to forcibly draw burned gas into the detector pipe for stable flow therethrou... | 09/24/1985 |
