Abstract: An apparatus and method for high velocity injection of a stream of fluid fuel into a stream of NOX containing combustion effluents downstream of a primary combustion zone, without the use of recirculated flue gas or other carrier gas. The apparatus includes a fuel introducing member that has a fuel receiving end for receiving fluid fuel from a fuel source and a fuel injection end for injecting the fluid fuel into the stream of combustion effluents. A fuel passage is in fluid communication with the fuel receiving end and the fuel injection end of the fuel introducing member. A means for increasing the velocity of the fluid fuel, without the need of a carrier gas, is associated with the fuel introducing member.

Abstract: Methods are provided for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion emissions. The methods are carried out by forming a combustion flue gas in a combustion zone, the combustion flue gas including nitrogen oxides, injecting overfire air and droplets of a solution or a powder of a selective reducing agent into a burnout zone, and contacting the combustion flue gas with the overfire air and the selective reducing agent in the burnout zone to thereby decrease the concentration of nitrogen oxides therein. The selective reducing agent is provided in an aqueous solution or powder which is injected into the overfire air in optimized droplet or particle form prior to or concurrently with injection of the overfire air into the burnout zone.

Abstract: A self cleaning port system and method provides for removal of ash deposits and build-up from around a port opening in a combustion device such as an industrial or utility furnace or boiler. The self cleaning port system includes a port structure for providing communication between a source of injected material and an interior portion of the combustion device. The port structure can be a burner for injecting fuel and air, an overfire air port, a flue gas recirculation port, a reburning port for injecting a reburning fuel, a pollutant emission control port for injecting NO.sub.x or SO.sub.2 reduction agents, or other types of ports. A blowing member such as a lance is disposed within or formed as part of the port structure and is configured to discharge a blowing medium so as to remove ash deposits adjacent to the port opening. The blowing medium is discharged from the blowing member such that the blowing medium is directed outwardly away from the port opening.

Abstract: A method and system is provided for the reduction of nitrogen and sulfur oxides emissions from carbonaceous fuel combustion flue gases. The method includes the injection of coal water slurry as a reburn fuel into furnace flue gases to partially oxidize the coal water slurry thereby producing reducing gas species in a reburn zone that convert flue gas nitrogen oxides to diatomic nitrogen. Optionally, sulfur oxides may also be removed from the flue gas by adding alkali compounds to the coal water slurry before injecting the slurry into the furnace, or by injecting the alkali compounds separately into the reducing reburn zone in the furnace created by the partial oxidation of the coal water slurry reburn fuel. The alkali compounds react with the sulfur species to produce alkali sulfite and sulfate particulate solids, which can be removed in a downstream particulate removal device such as an electrostatic precipitator or bag house.

Abstract: A mixing method insures adequate mixing of gases in a glass furnace that employs a reburning process. Because of the mixing method, a novel glass furnace can be constructed that strikes an optimum balance between a reduction in nitrogen oxide (NO.sub.x) emissions and the cost of the reburn process, particularly, the number of requisite reburn and overfire air jets as well as reburn fuel. The glass furnace is constructed as follows. A combustion housing defines a primary zone for receiving combustible fuel, a reburn zone connected to the primary zone for receiving exhaust from the primary zone and reburn fuel to generate a first gas mixture. A burnout zone is connected to the reburn zone and receives the first gas mixture and overfire air to generate a second gas mixture.

Abstract: An electronic control system, particularly adaptable to coin-operated laundry appliances, which enables owners of such machines to customize machine operation. Laundry parameters are stored in random access memory, and timing functions are performed in control logic. Thus, the owner may simply update the information on a computer and download the parameters to individual laundry machines. A portable receiver/transmitter may be utilized to transfer information to the laundry machine controller by way of an infrared communications link. Also disclosed is a reconfigurable fuzzy logic control which is general purpose, having a functionality that may be easily altered in accordance with the type of machine. The structure of the fuzzy logic controller is identical for all applications.

Abstract: A process for the in-situ production of an effluent sorbent-oxide aerosol with promoter during the combustion of a hydrocarbon containing fuel whereby the effluents are removed from the resultant gaseous hydrocarbon stream comprises admixing an aqueous solution of the sorbent and promoter with the fuel, atomizing and combusting the mixture under controlled conditions so as to generate the effluent sorbent-oxide aerosol.

Abstract: A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consisting of urea and mixtures of urea with a water soluble iron salt under high intensity mixing conditions with the mixer wherein the mixer is operated at a mixer paddle tip velocity of at least 500 ft/min and a mixer energy input of at least 3.5 kW-h per ton of sorbent so as to produce a sulfur sorbent composition having the following physical and chemical properties: alkaline earth metal (wt. %)--40-52, molar ratio of promoting additive to alkaline earth metal--0.001-0.2, bulk density (g/ml)--0.35-0.75, surface area (m.sup.2 /g)--5-25, pore volume (cc/g)--0.05-0.14 and mean particle size (um)--4.

Abstract: A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consisting of urea and mixtures of urea with a water soluble iron salt under high intensity mixing conditions with the mixer wherein the mixer is operated at a mixer paddle tip velocity of at least 500 ft/min and a mixer energy input of at least 3.5 kW-h per ton of sorbent so as to produce a sulfur sorbent composition having the following physical and chemical properties: alkaline earth metal (wt.%)--40-52, molar ratio of promoting additive to alkaline earth metal--0.001-0.2, bulk density (g/ml)--0.35-0.75, surface area (m.sup.2 /g)--5-25, pore volume (cc/g)--0.05-0.14 and mean particle size (.mu.m)--4.

Abstract: A continuous structural laminate includes a plurality of continuous generally parallel spaced integrally bonded porous blankets with a continuous polymeric matrix extending through each porous blanket. The polymeric matrices include solidified polymeric mixtures with each mixture including a polymer forming material, a gas foaming agent, a catalyst and a major portion of a particulate reinforcement. The polymeric matrices include compatible polymer forming materials. At least two of the blankets include polymeric matrices with differing particulate reinforcements. The continuous structural laminate is formed and applied with mobile apparatus including a support portion, a raw material supplying portion, a mixing portion, a matrix forming portion and a control portion. The support portion includes at least two base sections with carriages depending from a first base section including a plurality of spaced transverse axle assemblies and wheels mounted on free ends of each axle assembly.

Abstract: Mobile continuous ditch lining apparatus includes a supporting portion, a raw material supplying portion, a mixing portion, a mixture delivery portion, a matrix forming portion and a control portion. The supporting portion includes at least one base section with a carriage. The raw material supplying portion includes a plurality of reservoirs connected independently with the mixing portion through flexible conduits. A blanket support extends from the supporting portion. The mixing portion includes an elongated chamber with a plurality of deflector sections. The matrix forming portion includes elongated mixture delivery and pressure applying mechanisms. The control portion includes a pump, a valve and a flow monitor along the length of each conduit, a drive advancing a continuous porous blanket through the matrix forming portion and a programmable memory.A method of forming a ditch liner includes dispensing continuously a solidifiable liquid mixture uniformly over a continuously moving porous blanket.

Abstract: Continuous molding apparatus includes a raw material supplying portion, a molding portion, a supporting portion, a mixing portion and a control portion. Each reservoir of the raw material supplying portion is connected independently with the mixing portion. The molding portion includes a plurality of spaced mold assemblies each with at least two separable mold sections. The supporting portion includes a plurality of the spaced mold assemblies each supported for independent rotation about more than one axis. The mixing portion includes an elongated mixing chamber disposed adjacent each mold assembly each with a plurality of deflector sections. A continuous method of molding a foamed product includes providing a plurality of raw material reservoirs and continuously moving raw material from each reservoir independently to a plurality of spaced mixing chambers each of which is located adjacent to an individual mold assembly including separable mold sections.

Abstract: Continuous molding apparatus includes a raw material supplying portion, a mixing portion, a molding portion, a mixture delivery portion, a supporting portion and a control portion. Each reservoir of the raw material supplying portion is independently connected to an inlet of the mixing portion. The molding portion includes a plurality of spaced rotatable mold assemblies, each with at least two retractable mold sections. The mixture delivery portion is selectively alignable with each mold assembly sequentially in a preselected repeating cycle through an indexing mechanism.

Abstract: A continuous structural laminate includes a plurality of continuous generally parallel spaced integrally bonded porous blankets with a continuous polymeric matrix extending through each porous blanket. The polymeric matrices include solidified polymeric mixtures with each mixture including a polymer forming material, a gas foaming agent, a catalyst and a major portion of a particulate reinforcement. The polymeric matrices include compatible polymer forming materials. At least two of the blankets include polymeric matrices with differing particulate reinforcements. The continuous structural laminate is formed and applied with mobile apparatus including a support portion, a raw material supplying portion, a mixing portion, a matrix forming portion and a control portion. The support portion includes at least two base sections with carriages depending from a first base section including a plurality of spaced transverse axle assemblies and wheels mounted on free ends of each axle assembly.

Abstract: An insulated molded plastic structural unit includes spaced face portions, an intermediate portion and interlocking portions. The face portions each include an integrally formed stressed hard outer skin section and the intermediate portion includes an insulating core section. The interlocking portions include mateable sections along at least two edges of each unit, each mateable section including at least five alternating raised and recessed areas forming an asymmetrical pattern along the length thereof. The pattern is the same or a reverse thereof along each mateable section of the same unit and of adjacent units to which it will be joined. Particular mateable sections either extend beyond the face portions or are recessed below the face portions a substantially equal distance. Continuous molding apparatus includes a raw material supplying portion, a mixing portion, a molding portion and a control portion.

Abstract: Mobile continuous ditch lining apparatus includes a supporting portion, a raw material supplying portion, a mixing portion, a mixture delviery portion, a matrix forming portion and a control portion. The supporting portion includes at least one base section with a carriage. The raw material supplying portion includes a plurality of reservoirs connected independently with the mixing portion through flexible conduits. A blanket support extends from the supporting portion. The mixing portion includes an elongated chamber with a plurality of deflector sections. The matrix forming portion includes elongated mixture delivery and pressure applying mechanisms. The control portion includes a pump, a valve and a flow monitor along the length of each conduit, a drive advancing a continuous porous blanket through the matrix forming portion and a programmable memory.A method of forming a ditch liner includes dispensing continuously a solidifiable liquid mixture uniformly over a continuously moving porous blanket.

Abstract: A molded structural panel with substantially parallel major surfaces includes integrally formed thin thermosetting resin high density outer sections. Less dense thermosetting resin foam intermediate sections extend inwardly from the outer sections with the density of the intermediate sections decreasing substantially uniformly with increased spacing from the outer sections. A thin thermosetting resin high density central section is located between the intermediate sections. The high density outer sections are in a stressed state from the pressure of the foam intermediate sections thereon. Also, a method for molding the panel.Rotational molding apparatus includes a chemical supplying portion, a chemical mixing portion, a mold portion, a mold supporting portion, a mixture delivery portion and a control portion. The chemical mixing portion includes a tubular member disposed in a substantially horizontal orientation with a plurality of spaced angled deflector sections.