US1910735A - Burner for coal dust firing - Google Patents

Burner for coal dust firing Download PDF

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US1910735A
US1910735A US253170A US25317028A US1910735A US 1910735 A US1910735 A US 1910735A US 253170 A US253170 A US 253170A US 25317028 A US25317028 A US 25317028A US 1910735 A US1910735 A US 1910735A
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burner
coal dust
air
combustion chamber
whirl
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US253170A
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Zikesch Herbert
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Buttnerwerke A G
BUTTNERWERKE A-G
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Buttnerwerke A G
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/006—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion
    • F23C3/008—Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion for pulverulent fuel

Definitions

  • the invention pertains to a novel coal dust burner and to a process for operating the same.
  • the case of the burner is given such a form and the supply conduits for the air and the-coal dust are arranged in such a way that a vortex of materials is produced in the case of the burner, in which there are air and' coal dust mixed with each other.
  • the smallest particles are intended to form the core of the whirl and the coarser ones its outermost layers, while an equable combustion of the latter is provided for by enveloping the whole of the coal dust air whirl with an outer air mantle.
  • the formation of the coal dust air whirl may be effected in different ways in accordance with the application, e. g. by conducting a mixture of air and coal dust to the combustion chamber thru a central conduit discharging into the said chamber, while inside the conduit an element, of helical form has been fitted, by which the coal dust air current is made to turn or whirl.
  • This whirling can be caused by .air currents tangentially introduced into the combustion chamber, the air currents being preferably 'ticles contained in it.
  • the applicant has advantageously applied, with the new burner, degrees of the speed of 20 metres rising to 50 metres and more a second. This is proportioned to an eduction speed at the nozzles of for instance 20 to 45'metr es a second, as compared with 3' to 4 metres with the burner employed up to the present time.
  • the applicant has also raised the excess pressure for instance to 300-400 millimeters and more, in opposition to 150200 millimeters of the usual operation, while, for the secondary air current, he has appropriately applied a pressure of at least 200'millimeters, against 35-40 millimeters, for the air heater.
  • the blower producing the pressure and supplying the secondary air current is preferably arranged between the air heater and the burner. In this way a smaller difference of pressure is obtalned between the smoke gas flues and the air passages than with the usual model, in which the blower was fitted in front of the air heater.
  • the high speed of the supply hill current he has even applied degrees of increased temperatures up to 450 C. and has found it to be specially advantageous to supply the secondary air current in steps.
  • the best way is to. conduct the secondary air current treated with the highest preliminary heating to the mixture of coal dust and air leaving the burner.
  • Fig. 1 shows a burner with a gradually enlarging combustion chamber in its longitudinal section.
  • Fig. 2 is a cross section according to the line 2-'2 in Fig. 1.
  • Fig. 3 is a longitudinal sectional view of another 'formof burner.
  • Fig. 4 is a cross-section taken on line 4l.4 of Fig. 3.
  • Fig. 5 is a longitudinal sectional view of another form of burner showing a stepped arrangement.
  • Fig. 6 is a cross sectional view taken on line 6-6 of Fig. 5. 1
  • Fig. 7 is a longitudinal sectional view of a further modified form of the invention showing particularly a variance ofcoal dust and air supply.
  • ig. 8 is a cross sectional view taken on line 8-8 of Fig. 7.
  • Fig. 9 is a longitudinal sectional view of another form of the invention.
  • Figs. 10 and 11 are respectively a longitudinal section and a cross-section of a further form of the invention, Fig. 11. being taken on line 11-11 of Fig. 10.
  • 1 shows the wall of the combustion chamber made of fireproof material, the interior space of the same being enlarged inthe shape of a bell towards the rear or discharge opening.
  • a conduit 2 At the front end of the combustion chamber the supply of a coal dust air mixture is effected by means of a conduit 2.
  • ahelical screw 3 is arranged, which serves for setting the coal dust air current passing thru in a rotary and whirling motion.
  • the combustion chamber is surrounded with a case 4, the interior space of which is separated by a transverse wall 5 into two compartments 6 and 7. llnto the latter rooms a secondary air current is introduced thru the conduit 8 and the branch conduits 9 and 10, which current is led tangentially into the interior space of the combustion chamber thru the openings 11, 12, 13, 141 in such a way that the air passes along the interior face of the wall 1, cools the latter and, at the same time, cpm'pletely envelope the coal dust whirl formed inside. In this way an excellent combustion even of the coarse outer particles of the whirl is warranted.
  • the helical screw 3 is given the form of a spiralshaped band and the auxiliary priming burner 15 is passed through the interior hollow space at the center thereof.
  • priming burners are supplied.
  • the latter should be arranged in such a way that their flame is blowing obliquely or ten gentially into the chambers.
  • the auxiliary priming flame which is blowing in, is caused to contribute equally to the formation of the coal dust air whirl and to envelop the latter or, as it were, to be wrapped up in it, by which process the priming power of the flame is being fully utilized.
  • the shape of the auxiliary priming flame may be measured big enough as to sufice temporarily for maintaining the operation if there should be any interruption and a diminution of the coal dust supply.
  • the auxiliary priming flame may also be put out of use after tion 24 in Fig. 7 and the ste ped graduations 25 and 26 in Fig. 9.
  • the coal dust air supply is not efi'ected from the front end, but from the side Walls of the combustion chamber and, as may be seen from the cross section in Fig. 8 schematically applying to both Figs. 7 and 9, two coal dust supply-conduits 27 and 2,8 and two compressed air feeders 29 and 30 in each case are alternately arranged round the circumference of the combustion chamber. Air and coal dust will rush into the interior of the compriming burner 35 is arranged inthe bottom of the combustion chamber.
  • a coal dust burner in which combustion is entirely efi'ected, including a burner body which is widened and enlarged in stepwise formation from one end to the other, a longitudinally extending inlet conduit connnunicating centrally with the small end of the body, means in said inlet for forcibly introducing a whirling mixture of primary air and coal dust centrally of the burner body, the walls of the body being provided in each of the stepped portions with tangentially arranged air admission openings through which secondary air is admitted to form a closed layer of air adjacent the walls of the burner.
  • the combustion chamber 38 is supplied with a stepped graduation 39 and surrounded with a casing 40.
  • the conduits 49, 50 the casing 40 is provided with compressed air rushing into the different compartments of the combustion chamber thru the air slits.
  • a coal dust air whirl is obtained which consists, as it were, of bands and air bands we nd or wrapped on each other.
  • a coal dust air mixture likewise set in a whirling motion and forming the core of the flame is conducted thru a conduit 51 to the bottom of the combustion chamber, in which conduit lies a piece ofa screw face 52.
  • An auxiliary burner 53 fitted in the axis of the supply conduit 51 manages the priming of the coal dust flame.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Description

-May 23, 193 3. H. ZIKESCH 1 BURNER FOR COAL nusw FIRING Filed Feb. 9, 1928 2 Sheets-Sheet 1 May 23, 1933. H, ZIKES H' 1,910,735
BURNER FOR COAIJ DUST FIRING Filed Feb. 9, 1928 2 Sheets-Sheet 2 Jvzrerzfan Patented May 23, 1933 UNITED STATES PATENT OFFICE 4 HERBERT ZIKESCH, OF UEBDINGEN-ON -'1HE-RHINE, GEEHANY, ASSIGNOR '10 BUTTNEB- A-G., 0F UERDINGEN-ON-THE-RHINE,
BURNER FOR COAL DUST FIRING Application filed February 9, 1928, Serial No.
The invention pertains to a novel coal dust burner and to a process for operating the same. According to the application, the case of the burner is given such a form and the supply conduits for the air and the-coal dust are arranged in such a way that a vortex of materials is produced in the case of the burner, in which there are air and' coal dust mixed with each other. In this process the smallest particles are intended to form the core of the whirl and the coarser ones its outermost layers, while an equable combustion of the latter is provided for by enveloping the whole of the coal dust air whirl with an outer air mantle.
The formation of the coal dust air whirl may be effected in different ways in accordance with the application, e. g. by conducting a mixture of air and coal dust to the combustion chamber thru a central conduit discharging into the said chamber, while inside the conduit an element, of helical form has been fitted, by which the coal dust air current is made to turn or whirl. This whirling can be caused by .air currents tangentially introduced into the combustion chamber, the air currents being preferably 'ticles contained in it.
conducted in such a way that they will closely pass along the inner wall of the combustion chamber'and thus completely envelope the coal dust air whirl like a mantle.
It is particularly important to obtain marked layers in this coal dust whirl. These will be produced, in accordance withthe invention, by shaping the combustion chamber in such a way as to enlarge it from the bottom gradually, or rather in form of steps. In this manner a gradual or a sudden expansion of the coal dust whirl in the transverse direction is attained. Thus the coarse particles are thrown outside, while the fine remain in the core of the whirl, from which -will result a marked arranging in layers of the coal dust air whirl in conformity with the size of the coal dust par- For many purposes, particularly if the formation of a very short coal dust ilame shouldbe required, it has proved advantageous to work such a burner with very high degrees of air speed and 253,170, and in Germany February 14, 1927.
pressure far exceeding the speed and pressure hitherto in use. Instead of the speed of about 12 metres at most, as is commonly used for the supply'air and corresponds to a comparatively long flame of about 7 to 8 metres, the applicant has advantageously applied, with the new burner, degrees of the speed of 20 metres rising to 50 metres and more a second. This is proportioned to an eduction speed at the nozzles of for instance 20 to 45'metr es a second, as compared with 3' to 4 metres with the burner employed up to the present time. In a similar manner the applicant has also raised the excess pressure for instance to 300-400 millimeters and more, in opposition to 150200 millimeters of the usual operation, while, for the secondary air current, he has appropriately applied a pressure of at least 200'millimeters, against 35-40 millimeters, for the air heater. For this process the blower producing the pressure and supplying the secondary air current is preferably arranged between the air heater and the burner. In this way a smaller difference of pressure is obtalned between the smoke gas flues and the air passages than with the usual model, in which the blower was fitted in front of the air heater.
The working of this novel burner with a high speed and a high pressure results in a considerable increase of the efiiciency of the burner with the same dimension, as well as in a very short form of the flame, which is but few metres long, that is, 2 to 3 metres. Therefore the operator may render the heating power of this flame serviceable, in many cases, directly from the outlet of the case of the burner, without beingobliged to direct the flame round, that is, thru counter-blast currents.
Furthermore the high speed of the supply hill current he has even applied degrees of increased temperatures up to 450 C. and has found it to be specially advantageous to supply the secondary air current in steps. The best way is to. conduct the secondary air current treated with the highest preliminary heating to the mixture of coal dust and air leaving the burner.
In the subjoined drawings different forms of embodiment of the new burner have been represented.
Fig. 1 shows a burner with a gradually enlarging combustion chamber in its longitudinal section.
Fig. 2 is a cross section according to the line 2-'2 in Fig. 1.
Fig. 3 is a longitudinal sectional view of another 'formof burner.
Fig. 4 is a cross-section taken on line 4l.4 of Fig. 3.
Fig. 5 is a longitudinal sectional view of another form of burner showing a stepped arrangement.
Fig. 6 is a cross sectional view taken on line 6-6 of Fig. 5. 1
Fig. 7 is a longitudinal sectional view of a further modified form of the invention showing particularly a variance ofcoal dust and air supply.
ig. 8 is a cross sectional view taken on line 8-8 of Fig. 7.
Fig. 9 is a longitudinal sectional view of another form of the invention, and
Figs. 10 and 11 are respectively a longitudinal section and a cross-section of a further form of the invention, Fig. 11. being taken on line 11-11 of Fig. 10. In particular, 1 shows the wall of the combustion chamber made of fireproof material, the interior space of the same being enlarged inthe shape of a bell towards the rear or discharge opening. At the front end of the combustion chamber the supply of a coal dust air mixture is effected by means of a conduit 2. At the terminal part of this conduit ahelical screw 3 is arranged, which serves for setting the coal dust air current passing thru in a rotary and whirling motion.
The combustion chamber is surrounded with a case 4, the interior space of which is separated by a transverse wall 5 into two compartments 6 and 7. llnto the latter rooms a secondary air current is introduced thru the conduit 8 and the branch conduits 9 and 10, which current is led tangentially into the interior space of the combustion chamber thru the openings 11, 12, 13, 141 in such a way that the air passes along the interior face of the wall 1, cools the latter and, at the same time, cpm'pletely envelope the coal dust whirl formed inside. In this way an excellent combustion even of the coarse outer particles of the whirl is warranted.
Following the application, a supplemen- Fig. 1, such a burner is fitted to lie in the.
axis of the conduit 2. lln this case the helical screw 3 is given the form of a spiralshaped band and the auxiliary priming burner 15 is passed through the interior hollow space at the center thereof.
With reference to Figs.- 3 and d the reference numbers are applied to the corresponding parts of the burner as in Figs. 1 and 2 and are primed. lln this instance the combustion chamber is formed with a square cross section. lit enlarges in the shape of a funnel at 16, immediately behind the mouth of the supply conduit 2, then one part of it runs in a straight line, after which it enlarges once more like a funnel at 17. Consequently a double expansion of the coal dust air whirl thus takes place in the enlarged funnel-like part and facilitates the Bil) example of the invention, two auxiliary,
priming burners are supplied. Preferably the latter should be arranged in such a way that their flame is blowing obliquely or ten gentially into the chambers. In this way the auxiliary priming flame, which is blowing in, is caused to contribute equally to the formation of the coal dust air whirl and to envelop the latter or, as it were, to be wrapped up in it, by which process the priming power of the flame is being fully utilized. Eventually, in this instance as well as in the form of embodiment corresponding to Fig. 1 or in other cases, the shape of the auxiliary priming flame may be measured big enough as to sufice temporarily for maintaining the operation if there should be any interruption and a diminution of the coal dust supply. 0n the other hand, the auxiliary priming flame may also be put out of use after tion 24 in Fig. 7 and the ste ped graduations 25 and 26 in Fig. 9. In t 1s case the coal dust air supply is not efi'ected from the front end, but from the side Walls of the combustion chamber and, as may be seen from the cross section in Fig. 8 schematically applying to both Figs. 7 and 9, two coal dust supply- conduits 27 and 2,8 and two compressed air feeders 29 and 30 in each case are alternately arranged round the circumference of the combustion chamber. Air and coal dust will rush into the interior of the compriming burner 35 is arranged inthe bottom of the combustion chamber. In conformity with Figure 9, also lateral auxiliary priming burners 36 and 37are provided, he-
I claim: y
1. A coal dust burner in which combustion is entirely efi'ected, including a burner body which is widened and enlarged in stepwise formation from one end to the other, a longitudinally extending inlet conduit connnunicating centrally with the small end of the body, means in said inlet for forcibly introducing a whirling mixture of primary air and coal dust centrally of the burner body, the walls of the body being provided in each of the stepped portions with tangentially arranged air admission openings through which secondary air is admitted to form a closed layer of air adjacent the walls of the burner.
2. A burner as claimed in claim 1, wherein a secondary air containing casing is provided about the stepped burner body and is provided with partitions forming separate compartments for dividing the sald secondf ary air casing into compartments corresponding to the stepped portions of the body, and means for supplying secondary air'to each of said compartments.
In testimony whereof I aflix my signature.
HERBERT ZIKESCH.
side the auxiliary priming burner 35 fitted in the bottom of the combustion chamber,
*which burners may enter obliquely or tangentially, so that their flame is wrapped up inside the coal dust air whirl.
After Figs. '10 and 11, the combustion chamber 38 is supplied with a stepped graduation 39 and surrounded with a casing 40. Four coal dust supply conduits 41, 42, 43, 44, which open into the longitudinal slits 45, 46, 47, 48 introduced tangentially into the combustion chamber, are passing thru the said casing. By means of the conduits 49, 50 the casing 40 is provided with compressed air rushing into the different compartments of the combustion chamber thru the air slits. With this form of embodiment too, a coal dust air whirl is obtained which consists, as it were, of bands and air bands we nd or wrapped on each other. Moreover, a coal dust air mixture likewise set in a whirling motion and forming the core of the flame is conducted thru a conduit 51 to the bottom of the combustion chamber, in which conduit lies a piece ofa screw face 52. An auxiliary burner 53 fitted in the axis of the supply conduit 51 manages the priming of the coal dust flame.
The forms of embodiment described may be varied in manifold ways within the scope of the leading ideas of the invention. In
each case, the due formation in layers of the coal dust air whirl thru the expansion obtained by means of a radual or ste dike enlargement of the com ustion cham er is of first consequence.
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Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435395A (en) * 1943-12-20 1948-02-03 Robert C Hopkins Furnace burner arrangement
US2579614A (en) * 1944-06-23 1951-12-25 Allis Chalmers Mfg Co Combustion chamber with rotating fuel and air stream surrounding a flame core
US2584686A (en) * 1945-04-30 1952-02-05 Tecnica Ind Y Com Sa Tecosa Cyclone furnace with separated combustion and heat exchange chambers
US2603949A (en) * 1947-11-28 1952-07-22 United Aircraft Corp Combustion chamber with diverse air paths and vortices producing vanes therein for jet propulsion or gas turbine power plants
US2654996A (en) * 1948-10-26 1953-10-13 Oerlikon Maschf Gas turbine combustion chamber
US2659201A (en) * 1947-11-26 1953-11-17 Phillips Petroleum Co Gas turbine combustion chamber with provision for turbulent mixing of air and fuel
US2672012A (en) * 1941-07-03 1954-03-16 Babcock & Wilcox Co Combustion chamber for air-borne solid fuel
DE927595C (en) * 1940-05-10 1955-05-12 Babcock & Wilcox Dampfkessel W Method for operating a cyclone muffle, in particular ignition muffle for pulverized coal combustion
US2765842A (en) * 1952-03-05 1956-10-09 Preferred Utilities Mfg Corp Hydrocarbon burner head
US2800092A (en) * 1951-06-13 1957-07-23 Pollopas Patents Ltd Burning of pulverized fuel
US2918024A (en) * 1951-03-03 1959-12-22 Babcock & Wilcox Co Fuel burning method
US3058229A (en) * 1960-03-22 1962-10-16 Downing Richard Method and apparatus for drying coal
US3209808A (en) * 1962-04-16 1965-10-05 Bloom Eng Co Inc Soaking pit burner or the like
US3258917A (en) * 1961-11-07 1966-07-05 Atlantic Res Corp Process and apparatus for gas generation from semi-solids
US3462083A (en) * 1966-12-19 1969-08-19 Robertson Co H H Mixing nozzle and dispersion method
US3514245A (en) * 1967-04-11 1970-05-26 Airoil Burner Burner assembly for fluid fuels
US3681003A (en) * 1970-04-13 1972-08-01 Kuibyshevsky Vni Skogo I Nefte Gas burner
US3827851A (en) * 1972-10-03 1974-08-06 Peabody Gordon Piatt Combination, oil, gas, and/or solid burner
US3951584A (en) * 1974-05-23 1976-04-20 Midland-Ross Corporation Self-stabilizing burner
US3954382A (en) * 1974-04-08 1976-05-04 Yasuo Hirose Combustion apparatus and method
US3986817A (en) * 1975-04-09 1976-10-19 General Electric Company Grid burner pilot igniter
US4035137A (en) * 1973-04-26 1977-07-12 Forney Engineering Company Burner unit
US4089637A (en) * 1977-05-20 1978-05-16 Combustion Engineering, Inc. Control of air flow in a burner for a tangentially fired boiler
US4350103A (en) * 1979-10-02 1982-09-21 Shell Oil Company Method and apparatus for the combustion of solid fuel
US4412496A (en) * 1982-04-27 1983-11-01 Foster Wheeler Energy Corp. Combustion system and method for a coal-fired furnace utilizing a low load coal burner
EP0111874A1 (en) * 1982-12-15 1984-06-27 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk A device for burning coal dust
US4500281A (en) * 1982-08-02 1985-02-19 Phillips Petroleum Company Burning of fuels
US4504211A (en) * 1982-08-02 1985-03-12 Phillips Petroleum Company Combination of fuels
US4515094A (en) * 1982-12-27 1985-05-07 Hitachi, Ltd. Fuel jet method and apparatus for pulverized coal burner
EP0152389A2 (en) * 1984-02-13 1985-08-21 Ingeniörsfirman Petrokraft Ab Burner for burning pulverulent fuel
US4546710A (en) * 1981-10-20 1985-10-15 Euronom Ab Burner head
US4550563A (en) * 1979-11-23 1985-11-05 Marchand William C Gas turbine combustion system utilizing renewable and non-critical solid fuels with residue remover to minimize environmental pollution
WO1989001117A1 (en) * 1985-09-09 1989-02-09 Coen Company, Inc. Pulverized fuel slurry burner and method of operating same
US4828487A (en) * 1988-03-21 1989-05-09 Earl Arnold M Swirl generator
US4932861A (en) * 1987-12-21 1990-06-12 Bbc Brown Boveri Ag Process for premixing-type combustion of liquid fuel
US4958619A (en) * 1985-07-08 1990-09-25 Institute Of Gas Technology Portable, flueless, low nox, low co space heater
US5193995A (en) * 1987-12-21 1993-03-16 Asea Brown Boveri Ltd. Apparatus for premixing-type combustion of liquid fuel
US5685705A (en) * 1994-03-11 1997-11-11 Asea Brown Boveri Ag Method and appliance for flame stabilization in premixing burners
US20060225424A1 (en) * 2005-04-12 2006-10-12 Zilkha Biomass Energy Llc Integrated Biomass Energy System
US20090123882A1 (en) * 2007-11-09 2009-05-14 Alstom Technology Ltd Method for operating a burner
US20090223612A1 (en) * 2007-11-16 2009-09-10 Mcknight James K Powdered fuels and powdered fuel dispersions
US20090274985A1 (en) * 2006-11-17 2009-11-05 Mcknight James K Powdered fuel conversion systems and methods
US20100099052A1 (en) * 2002-08-09 2010-04-22 Jfe Steel Corporation Tubular flame burner and combustion control method
US20150041718A1 (en) * 2010-10-01 2015-02-12 Shell Oil Company Burner for the gasification of a solid fuel
US9016216B2 (en) 2006-11-17 2015-04-28 James K. McKnight Methods of combustion of powdered fuels and powdered fuel dispersions
EP3044510B1 (en) * 2013-09-09 2018-11-07 MGH Burners Limited Combustion apparatus for combusting recyclable or waste material

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE927595C (en) * 1940-05-10 1955-05-12 Babcock & Wilcox Dampfkessel W Method for operating a cyclone muffle, in particular ignition muffle for pulverized coal combustion
US2672012A (en) * 1941-07-03 1954-03-16 Babcock & Wilcox Co Combustion chamber for air-borne solid fuel
US2435395A (en) * 1943-12-20 1948-02-03 Robert C Hopkins Furnace burner arrangement
US2579614A (en) * 1944-06-23 1951-12-25 Allis Chalmers Mfg Co Combustion chamber with rotating fuel and air stream surrounding a flame core
US2584686A (en) * 1945-04-30 1952-02-05 Tecnica Ind Y Com Sa Tecosa Cyclone furnace with separated combustion and heat exchange chambers
US2659201A (en) * 1947-11-26 1953-11-17 Phillips Petroleum Co Gas turbine combustion chamber with provision for turbulent mixing of air and fuel
US2603949A (en) * 1947-11-28 1952-07-22 United Aircraft Corp Combustion chamber with diverse air paths and vortices producing vanes therein for jet propulsion or gas turbine power plants
US2654996A (en) * 1948-10-26 1953-10-13 Oerlikon Maschf Gas turbine combustion chamber
US2918024A (en) * 1951-03-03 1959-12-22 Babcock & Wilcox Co Fuel burning method
US2800092A (en) * 1951-06-13 1957-07-23 Pollopas Patents Ltd Burning of pulverized fuel
US2765842A (en) * 1952-03-05 1956-10-09 Preferred Utilities Mfg Corp Hydrocarbon burner head
US3058229A (en) * 1960-03-22 1962-10-16 Downing Richard Method and apparatus for drying coal
US3258917A (en) * 1961-11-07 1966-07-05 Atlantic Res Corp Process and apparatus for gas generation from semi-solids
US3209808A (en) * 1962-04-16 1965-10-05 Bloom Eng Co Inc Soaking pit burner or the like
US3462083A (en) * 1966-12-19 1969-08-19 Robertson Co H H Mixing nozzle and dispersion method
US3514245A (en) * 1967-04-11 1970-05-26 Airoil Burner Burner assembly for fluid fuels
US3681003A (en) * 1970-04-13 1972-08-01 Kuibyshevsky Vni Skogo I Nefte Gas burner
US3827851A (en) * 1972-10-03 1974-08-06 Peabody Gordon Piatt Combination, oil, gas, and/or solid burner
US4035137A (en) * 1973-04-26 1977-07-12 Forney Engineering Company Burner unit
US3954382A (en) * 1974-04-08 1976-05-04 Yasuo Hirose Combustion apparatus and method
US3951584A (en) * 1974-05-23 1976-04-20 Midland-Ross Corporation Self-stabilizing burner
US3986817A (en) * 1975-04-09 1976-10-19 General Electric Company Grid burner pilot igniter
US4089637A (en) * 1977-05-20 1978-05-16 Combustion Engineering, Inc. Control of air flow in a burner for a tangentially fired boiler
US4350103A (en) * 1979-10-02 1982-09-21 Shell Oil Company Method and apparatus for the combustion of solid fuel
US4550563A (en) * 1979-11-23 1985-11-05 Marchand William C Gas turbine combustion system utilizing renewable and non-critical solid fuels with residue remover to minimize environmental pollution
US4546710A (en) * 1981-10-20 1985-10-15 Euronom Ab Burner head
US4412496A (en) * 1982-04-27 1983-11-01 Foster Wheeler Energy Corp. Combustion system and method for a coal-fired furnace utilizing a low load coal burner
US4500281A (en) * 1982-08-02 1985-02-19 Phillips Petroleum Company Burning of fuels
US4504211A (en) * 1982-08-02 1985-03-12 Phillips Petroleum Company Combination of fuels
EP0111874A1 (en) * 1982-12-15 1984-06-27 Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk A device for burning coal dust
US4515094A (en) * 1982-12-27 1985-05-07 Hitachi, Ltd. Fuel jet method and apparatus for pulverized coal burner
EP0152389A3 (en) * 1984-02-13 1985-12-11 Ingeniörsfirman Petrokraft Ab Burner for burning pulverulent fuel
US4614492A (en) * 1984-02-13 1986-09-30 Ingeniorsfirman Petrokraft Ab Burner for burning pulverulent fuel
EP0152389A2 (en) * 1984-02-13 1985-08-21 Ingeniörsfirman Petrokraft Ab Burner for burning pulverulent fuel
US4958619A (en) * 1985-07-08 1990-09-25 Institute Of Gas Technology Portable, flueless, low nox, low co space heater
WO1989001117A1 (en) * 1985-09-09 1989-02-09 Coen Company, Inc. Pulverized fuel slurry burner and method of operating same
US4932861A (en) * 1987-12-21 1990-06-12 Bbc Brown Boveri Ag Process for premixing-type combustion of liquid fuel
US5193995A (en) * 1987-12-21 1993-03-16 Asea Brown Boveri Ltd. Apparatus for premixing-type combustion of liquid fuel
US4828487A (en) * 1988-03-21 1989-05-09 Earl Arnold M Swirl generator
US5685705A (en) * 1994-03-11 1997-11-11 Asea Brown Boveri Ag Method and appliance for flame stabilization in premixing burners
US8944809B2 (en) 2002-08-09 2015-02-03 Jfe Steel Corporation Tubular flame burner and combustion control method
US20100099052A1 (en) * 2002-08-09 2010-04-22 Jfe Steel Corporation Tubular flame burner and combustion control method
US20100104991A1 (en) * 2002-08-09 2010-04-29 Jfe Steel Corporation Tubular flame burner
US20060225424A1 (en) * 2005-04-12 2006-10-12 Zilkha Biomass Energy Llc Integrated Biomass Energy System
US8240123B2 (en) 2005-04-12 2012-08-14 Zilkha Biomass Power Llc Integrated biomass energy system
US20110120140A1 (en) * 2005-04-12 2011-05-26 Zilkha Biomass Power Llc Integrated biomass energy system
US20090274985A1 (en) * 2006-11-17 2009-11-05 Mcknight James K Powdered fuel conversion systems and methods
US9016216B2 (en) 2006-11-17 2015-04-28 James K. McKnight Methods of combustion of powdered fuels and powdered fuel dispersions
US9039407B2 (en) * 2006-11-17 2015-05-26 James K. McKnight Powdered fuel conversion systems and methods
US9958158B2 (en) 2006-11-17 2018-05-01 James K. McKnight Powdered fuel conversion systems
US20090123882A1 (en) * 2007-11-09 2009-05-14 Alstom Technology Ltd Method for operating a burner
US9103547B2 (en) * 2007-11-09 2015-08-11 Alstom Technology Ltd Method for operating a burner
US20090223612A1 (en) * 2007-11-16 2009-09-10 Mcknight James K Powdered fuels and powdered fuel dispersions
US20150041718A1 (en) * 2010-10-01 2015-02-12 Shell Oil Company Burner for the gasification of a solid fuel
US10066832B2 (en) * 2010-10-01 2018-09-04 Air Products And Chemicals, Inc. Burner for the gasification of a solid fuel
EP3044510B1 (en) * 2013-09-09 2018-11-07 MGH Burners Limited Combustion apparatus for combusting recyclable or waste material
US10197271B2 (en) 2013-09-09 2019-02-05 Mgh Burners Limited Combustion apparatus for combusting recyclable or waste material

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