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| Number | Title | Issue Date |
| 7331299 | Incombustible withdrawing system An incombustible withdrawing system withdraws an incombustible from a fluidized-bed furnace having a fluidized bed formed therein by a fluidized medium. The incombustible withdrawing system has a mixture delivery path to deliver a mixture of the fluidized medium and... | 02/19/2008 |
| 7322818 | Method for adjusting pre-mix burners to reduce NOemissions A method for reducing NOx emissions from a furnace having multiple burners, each burner including at least one chamber for supplying a flow of combustion air and means to adjust the flow of air to the at least one chamber. The method includes the steps of... | 01/29/2008 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7146915 | Extractor/cooler of loose materials through the use of conveyor belt equipped with bored and winged plates The cooling of the material is mainly achieved through the convective thermal exchange between the loose hot material and the cooling air flow blown in from the outside, and through the conductive thermal exchange between the same material (3) and the conveyo... | 12/12/2006 |
| 7019190 | Soil remediation system A process and apparatus for energy efficient remediation of soil contaminated with hydrocarbons, including desorbing the hydrocarbon contaminants from a bed of the soil by thermal desorption in a treated desorption chamber (20) and thereafter combusting the c... | 03/28/2006 |
| 6929385 | Apparatus and method for increasing light output over operational life of arc lamp An apparatus and method for increasing operational life and performance of an arc tube or lamp. The method includes operating the arc tube and applying steps to encourage isothermal conditions around the arc tube. In one embodiment of the method, the arc tube (12... | 08/16/2005 |
| 6923203 | Variable orifice valve for airstream containing particulate coal A variable orifice valve for balancing the flow of particulate coal in an airstream relative to other parallel conduits. The valve comprises a section of conduit which changes in area along its flow axis and a variable position valve element mounted within the condu... | 08/02/2005 |
| 6902390 | Burner tip for pre-mix burners An improved burner and a method for combusting fuel in burners used in furnaces such as those found in steam cracking. The burner includes a burner tube having a longitudinal axis and having a downstream end and an upstream end for receiving fuel gas and air, flue g... | 06/07/2005 |
| 6802268 | Device for discharging dust from a dry dust collector of a blast furnace A device for discharging dust from a dry dust collector of a blast furnace includes a dust discharge vent located downstream of a dust discharge opening of the dry dust collector. A fully enclosed dust conveying system is located downstream of the dust discharge val... | 10/12/2004 |
| 6332408 | Pressure feedback signal to optimise combustion air control A novel method of combustion air control for multiple burner furnaces, whereas a pressure transducer is located in the air piping downstream of each zone air flow control device. The pressure transducer sends a feedback signal to a pressure control loop t... | 12/25/2001 |
| 6230633 | Conveyor/cooler of loose materials A conveyor/cooler of hot loose materials produced by fluid bed boilers and various industrial processes includes one or more feeding channels, which are substantially vertical or at any inclination. Because of gravity, the material leaves the combustion c... | 05/15/2001 |
| 5730069 | Lean fuel combustion control method A method and apparatus are provided to control the burning of a lean hydrocarbon containing gas stream under stable conditions using a combination of control logic and hardware. Temperature within the combustor is controlled by using a plurality of stagin... | 03/24/1998 |
| 5678498 | Process and apparatus for ventless combustion of waste A ventless, combustible waste reduction process and apparatus which can utilize any type of combustion means for disposing of hazardous, as well as non-hazardous, burnable waste. Such wastes include toxic combustible liquids, oil slurries, soils contamina... | 10/21/1997 |
| 5626085 | Control of staged combustion, low NOx firing systems with single or multiple levels of overfire air A control system for a fuel-fired furnace and more specifically the control of the stoichiometric ratio of the combustion process occurring within the furnace of a steam generating power plant. The control system, when so employed, is capable of regulatin... | 05/06/1997 |
| 5497712 | Low-temperature carbonization/combustion process and low-temperature carbonization/combustion plant with pressure control A low-temperature carbonization/combustion process is carried out in a low-temperature carbonization/combustion plant with pressure control that includes a pyrolysis drum to which waste is delivered. Low-temperature carbonization gas generated there is pa... | 03/12/1996 |
| 5020451 | Fluidized-bed combustion furnace A fluidized-bed incineration system is disclosed wherein complete combustion of fluctuating furnace charge is achieved through the use of an invented system that includes a feedback control apparatus to regulate the variable quantities of air required for... | 06/04/1991 |
| 4986198 | Method of controlling combustion in fluidized bed incinerator In a fluidized bed incinerator for burning matter to be incinerated charged into a furance by causing fluidization of a fluidizing medium with the assistance of air fed from the lower portion of a fluidized bed, a combustion control method is arranged suc... | 01/22/1991 |
| 4902223 | Oxy-fuel burner for burning pulverized fuel The wall (5) of a tube (2) for delivering pulverized fuel to the outlet (4) of an oxy-fuel burner (1) forms part of a chamber (6) which is pressurized or evacuated. The pressure in the chamber is continuously monitored. If the pressure in the chamber (6) ... | 02/20/1990 |
| 4761204 | Chemical recovery process using break up steam control to prevent smelt explosions An improvement in a chemical recovery process in which a hot liquid smelt is introduced into a dissolving tank containing a pool of green liquor. The improvement comprises preventing smelt explosions in the dissolving tank by maintaining a first selected ... | 08/02/1988 |
| 4677357 | Furnace draft control with remote control feature An apparatus for controlling the speed of a combustion blower motor includes first means for generating an output signal representative of a differential pressure. A second means provides a second signal representative of a desired airflow output of the b... | 06/30/1987 |
| 4591331 | Apparatus and method for burning fuel A fuel burner 2 for burning a fuel such as pulverized coal carried by a fluid, particularly air, has an inner passage for the particulate fuel-carrier medium and an outer passage for a combustion-supporting gas (typically oxygen-enriched air or pure oxyge... | 05/27/1986 |
| 4552529 | Device for pressure measurement in a pressurized container To prevent the tube to a pressure measuring means from being blocked by solid material mobile in a pressure container, a small part of the clean pressure medium from a source of such medium is injected into the tube so that the tube is continuously purged... | 11/12/1985 |
| 4378334 | Apparatus for disposal of spent sterilant or biocidal gases A method and control apparatus for the safe and effective ultimate disposal of spent biocidal gases such as alkylene oxides after their use in a reactor, including hopsital-type gaseous sterilizers, to reduce the concentration of viable organisms present ... | 03/29/1983 |
| 4368678 | Injection of pulverized material into a pressurized furnace A fuel stream comprising a combustible pulverized material entrained in a carrier gas is formed and subsequently injected into a blast furnace with the hot blast air without any detrimental effect on the hot air blast and with minimum energy consumption. ... | 01/18/1983 |
| 4060042 | Incinerator This invention relates to incinerators for the disposal of urban waste. More particularly, it relates to incinerators of the type comprising a rotary furnace of highly heat-resistant steel, having a horizontal axis of rotation and comprising a drying cham... | 11/29/1977 |
| 4019444 | Method of and apparatus for incinerating refuse An incinerator gas is first passed through an evaporative cooler operating above the dew point of the gas and then the gas is passed through an electrostatic precipitator or cyclone which strips dry particles from the gas. Thereafter the gas passes throug... | 04/26/1977 |
| 4017254 | Recirculating furnace-dryer combination A recirculating furnace-dryer combination including a combustion chamber, a housing surrounding the combustion chamber for maintaining a greater than atmospheric pressure within the combustion chamber, a dryer in which a greater than atmospheric pressure ... | 04/12/1977 |
| 4004730 | Furnace draft control for a steam generator A furnace draft control for a fossil fuel fired steam generator wherein the rates of flow of fuel, air and flue gas are adjusted in parallel in accordance with changes in power demand and the forced and induced drafts are adjusted in opposite directions a... | 01/25/1977 |
| 3957001 | Furnace implosion door Damage due to implosions occurring within the furnace chambers of balance draft vapor generators is prevented by the provision in the downstream combustion gas duct of one or more openings that are closed during normal operation by doors which are automat... | 05/18/1976 |
