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6672227 |
Arrangement for cleaning, airflow control and pushing away melt in air ports of incineration boilers
The arrangement is for cleaning and controlling airflow and where appropriate pushing away melt in an air channel of recovery boilers within the paper and pulp industry. By inclining the regulating...
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6652267 |
Burner for the partial oxidation of liquid fuels which contain carbon
The burner has at least two fuel-carrying tubes which are arranged in parallel, the distance between adjacent fuel-carrying tubes being 5 to 30 cm. Each fuel-carrying tube is surrounded by a...
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6446565 |
Blast tuyere for shaft furnaces, in particular blast furnaces or hot-blast cupola furnaces
A blast tuyere for shaft furnaces, includes a conical hollow main body having inner and outer casings defining a hollow space and interconnected by a tuyere nose. The outer casing is formed by a...
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6024028 |
Protection of the air ports of a recovery boiler
A method and apparatus for extending the life of air ports and nozzles in furnaces, particularly recovery boilers for burning black liquor to produce heat and a chemical melt. Apparatus is provided...
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5528999 |
Air nozzle for a recovery boiler
An air nozzle (3) mounted in the wall of a recovery boiler for supplying air from a supply duct (4) into the recovery boiler. The air nozzle (3) comprises a nozzle duct (7) attached to the wall of...
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5368824 |
Gas distribution system for fluidized bed reactors
A gas distribution system employing an array of parallel gas inlet pipes and a pair of transverse gas inlet pipes located below the first group of pipes to fluidize a particulate bed in a reaction...
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5178819 |
Tuyere blocks of vertical reactor furnaces
A tuyere opening assembly of a vertical furnace or reactor includes at most four prefabricated elements made of moulded refractory concrete, and a lining therein of ceramized refractory keys of...
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5119743 |
Device for injecting preheated air into a shaft furnace
The device comprises an oblique portion connected by a gooseneck, a nozzle, atuyere and a ball-and-socket joint to the wall of the furnace, in which the oblique portion comprises a tapered tube...
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5101773 |
Heat exchanger feed system and method
A heat exchanger feed system and method for distributing fuel through the walls of a combustor or other heat exchanger formed by a plurality of tubes each having first and second ends and adjacent...
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5070823 |
Port rodder with anti-drift feature
An anti-drift mechanism for a downwardly oriented port rodder for cleaning a port opening of a recovery boiler. The anti-drift mechanism prevents a cutter of the rodder from accidentally drifting...
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5044327 |
Air/burner port
An air/burner port assembly for a boiler having a water-wall and a windbox spaced rearwardly of the water-wall to form a windbox, comprises a burner and ignitor mounted in the windbox for directing...
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4940004 |
High energy combustion air nozzle and method for improving combustion in chemical recovery boilers
Recovery boiler wind boxes are upgraded by providing an air nozzle and damper installation where the nozzle crosses through the inside of the wind box. Air is channeled from the box into the nozzle...
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4940005 |
Device for injecting preheated air into a shaft furnace
The device is composed of several tubular elements equipped with an inner refractory lining and connected, on one side, to the wall of the furnace by means of a downpipe, an elbow, a tuyere and a...
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4848248 |
Tuyere for the introduction of a reaction medium into a hot gas
The tuyere (3) is clamped in place with its inlet end by way of an integrally formed flange (4) in a flange connection (5) of a pipe adapter (6) attached to the wall (2) on the outside, and a pipe...
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4748916 |
Cast air nozzle
A cast air nozzle is adapted to be mounted on the bottom of a combustor, particularly a fluidized-bed combustor. The air nozzle comprises a substantially gun-shaped body having a substantially...
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4744313 |
Air supply apparatus for an incinerator
A water-cooled air supply system for the combustion chamber of an incinerator. A longitudinal trough is formed in the lower end of the combustion chamber and a plurality of air supply tubes are...
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4666463 |
Method of controlling the temperature of a partial oxidation burner
The temperature of a burner in the reaction zone of a partial oxidation gas generator is controlled so that there is substantially no condensation of H2 O from the hot raw product gas on the...
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4653409 |
Apparatus for regulating and cleaning an air passage in the wall of a furnace
An apparatus for regulating and cleaning air passages (4) provided in the side-wall of a furnace, such as a soda recovery boiler, and connected to an air box positioned outside the wall, comprising...
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4564143 |
Hot-blast nozzles, particularly for blast furnaces
The nozzle of the invention comprises a hollow tubular enclosure (1) in which is provided a hollow tubular chamber (10) coaxial with the enclosure and extending from the yoke (7) to the vicinity of...
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4526531 |
Burner apparatus for smelting furnace
A burner apparatus for a smelting furnace comprising a burner body having a tip insertable into and withdrawable from a burner inserting bore in the wall of the furnace, a seal bar insertable into...
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4437415 |
Burner block assembly for industrial furnaces
A burner block for an industrial furnace is resiliently seated in a hollow annular member, the latter being made of a metal such as stainless steel and the burner block being made of a refractory...
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4344754 |
Water cooled vertical gas distributor
A vertically disposed gas distributor for injection of combustion air into a shaft kiln. The air distributor extends from the upper portion of the shaft kiln to an intermediate combustion zone, and...
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4257357 |
Furnaces
A furnace in which burners are incorporated into water-cooled tube panels without the need for heavy steel castings, the furnace including one or more walls formed of upright tubes having fins...
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4212253 |
Support device for a blast downpipe of a blast-furnace
The device is adapted to avoid the drawbacks of conventional arrangements including tie-rods and tensioners and in particular ensure a correct centering of the nozzle relative to the heel of the...
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4177976 |
Tuyere for a melting furnace
A tuyere for a melting furnace, which comprises inner and outer walls forming a water cooling space therebetween; a cylindrical intermediate wall dividing the water cooling space into an inner...
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4166433 |
Tuyeres with independent cooling circuits for nose and body portions
A cast tuyere has two independent cooling circuits for the nose and the body portions, respectively. The nose channel for the coolant having been formed by a removable frangible core around which...
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4140302 |
Jet impingement cooling device
Blast furnace tuyeres and like hollow-walled cooling devices have one or more water inlet conduits in the wall formed with a terminal constriction so as to discharge cooling water as a high speed...
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4099471 |
Apparatus for cleaning the air nozzles and regulating air flow thereto in chemical recovery boilers
Apparatus for cleaning the air nozzles of a chemical recovery boiler, including a scraping sleeve slidable back and forth in the nozzle for removing built-up deposits. Also included is an air...
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3943861 |
Device for operating air governing means at a refuse burning furnace
Air admittance ports in the wall of a refuse burning furnace are provided with reciprocable sleeve members which in the first hand govern the air flow, but also may be used to scrape the ports free...
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3926417 |
Tuyere for blowing gas into a melting furnace
A tuyere for blowing gas into a melting furnace, in which the cooling chamber in the body of the tuyere is divided, by means of a partition wall, into a front cooling chamber and a back cooling...
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3881710 |
BLAST-FURNACE TUYERE
The tuyere has a closed, hollow, annular housing divided by a transverse partition into a head and a tail portion. A coolant supply pipe fits into the tuyere housing through the end of its tail...
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3840219 |
TUYERES
This invention relates to a water-cooled tuyere having an annular body of hollowed section and an inlet tube extending into the hollow terminating adjacent the nose in a lateral aperture. The tube...
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3826479 |
TUYERE FOR A MELTING FURNACE
A tuyere for a melting furnace, which comprises inner and outer walls forming a water cooling space therebetween; a cylindrical intermediate wall dividing the water cooling space into an inner...
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3811386 |
TUYERE FOR INTRODUCING OXYGEN AND A PROTECTIVE MEDIUM INTO CONVERTER VESSELS
An improved system for supplying oxygen and a protective fluid to metal, below the surface of the metal, in refining vessels in which the tuyeres are connected separately to the supply of oxygen...
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3794308 |
DEVICE FOR INJECTING HOT GASES INTO A SHAFT FURNACE
The device has a longitudinal unit comprising an outer metal tube and an inner refractory tube. A liquid-cooled nozzle at one end of the unit converges to a narrow outlet. A terminal element at the...
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3771473 |
TUYERE FOR A BLAST FURNACE AND A METHOD FOR OPERATING THE TUYERE TO ATOMIZE COMBUSTIBLE MATERIAL FED INTO THE TUYERE BY A SHOCK WAVE
A method and an arrangement for operating a supersonic tuyere having a convergent and a divergent passage portion separated by a neck in such a manner so as to produce in the divergent passage...
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3766868 |
TUYERE STOCK FOR FURNACES
A feed conduit having utility in the transmission of heated fluids is disclosed. The apparatus of the present invention is characterized by a curved section, which communicates at its discharge end...
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3745943 |
BAFFLE NOSE TUYERE
An improved tuyere which minimizes under nose burning, and which is suitable for blast furnaces is disclosed. The nose section of the tuyere is provided, on its underside, with a slot for the...
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3727898 |
FABRICATED TUYERE NOZZLE
A tuyere nozzle for a metallurgical furnace fabricated from a plurality of functional elements joined together to form a completed tuyere nozzle. The tuyere nozzle includes a nose element through...
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3712602 |
BLAST FURNACE TUYERE AND METHOD OF OPERATING SAME
A blast furnace tuyere having a nose portion and a rear portion, each of which are independently water cooled by separate circulation systems. The nose portion thereof comprises nothing more than...
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3693961 |
BLAST FURNACE TUYERE
A blast furnace tuyere has a nozzle with a double tubular jacket wall between which there flows a cooling fluid which is guided by a flow guide installed between the two jacket walls, so that the...
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3674248 |
CLOSED END TUYERE COIL
Tuyeres and like articles employed to deliver fluids in extremely hot environments include an arrangement for their cooling comprising a conduit in the form of a coil having a plurality of turns...
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3662696 |
TUYERE STOCK FOR FURNACES
A feed conduit having utility in the transmission of heated fluids is disclosed. The apparatus of the present invention is characterized by a curved section, which communicates at its discharge end...
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3638929 |
DISCOVERY IN APPARATUS FOR COOLING A WALL SURFACE
Apparatus for cooling a device that is exposed to extremely high temperatures (such as might be found, for example, within a blast furnace), characterized by the provision of means defining a...
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3627296 |
COOLED BLOW MOLD FOR INDUSTRIAL FURNACES PARTICULARLY BLAST FURNACES
A cooled blow mold for industrial furnaces, particularly blast furnaces, wherein the feeding of the cooling agent is led in between an outer and an inner blow mold jacket which enclose the cooling...
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3626501 |
APPARATUS FOR INJECTING FLUID FUEL INTO A BLAST FURNACE
System for the injection of fluid hydrocarbon fuels into a bast furnace through an injection lance mounted in a tuyere for injecting the fluid fuel into the hot airblast of the tuyere.
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3610183 |
DIRECTIONAL DEVICE FOR AN ORIFICE MEMBER
A directional device for an orifice member having a minimum orifice diameter and an orifice outlet end is disclosed. The orifice member conducts the fluid in an outward direction through the...
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3601384 |
TUYERES
Each of the disclosed tuyeres or other tubular members comprises inner and outer tubular elements, preferably in the form of copper castings, having mating cylindrical surfaces. A series of...
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3599950 |
HOT-BLAST CUPOLA FURNACE
A hot-blast cupola furnace with a liningless stack having a water-cooled jacket and a hearth with a refractory lining below the level of the tuyeres of the furnace is provided with an inclined...
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3599952 |
HIGH-VELOCITY TUYERE WITH VARIABLE SIZE COOLING MEDIUM PASSAGE
A blast furnace tuyere having a graduated convolute-shaped cooling passage for a cooling medium. The cooling medium travels at a high velocity in a substantially helical movement as it moves along...
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