US2471755A - Steam-air-thermal power plant - Google Patents

Steam-air-thermal power plant Download PDF

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Publication number
US2471755A
US2471755A US580438A US58043845A US2471755A US 2471755 A US2471755 A US 2471755A US 580438 A US580438 A US 580438A US 58043845 A US58043845 A US 58043845A US 2471755 A US2471755 A US 2471755A
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Prior art keywords
steam
air
boiler
combustion
heater
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Expired - Lifetime
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US580438A
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Karrer Werner
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Rheinmetall Air Defence AG
Maschinenfabrik Oerlikon AG
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Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F01K23/103—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle with afterburner in exhaust boiler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S122/00—Liquid heaters and vaporizers
    • Y10S122/01—Air heater

Definitions

  • the object of the present invention is to provide means to increase the efficiency of power plants of the character described by mixing hot gases with the gases of combustion after the same have left the steam boiler.
  • the hot gases may be taken from the combustion chamber in advance of the steam boiler or the said hot gases may be produced in a separate chamberof combustion.
  • I denotes a tubular steam boiler to which fresh water is fed by a
  • the boiler I is arranged .above a grate
  • the steam leaving the boiler 'I passes through a superheater 4 arranged in the :path of the combustion gases.
  • the steam turbine 6 is aprime mover destined to drive anymachine 9 doing-mechanicaiwork.
  • the feed water is fed to the boiler I by any suitable pump 8.
  • the coil I2 denotes a device to heat air and the heated air drives a turbine I3 by which a compressor I4 and a machine I5 for performing useful work is driven.
  • the amount of air introduced into the air turbine plant is larger than the amount of air which is necessary to keep up the combustion of the fuel to produce steam in the boiler I.
  • a portion of the exhaust air from the turbine I3 passes by pipe it under the grate 3. Through a pipe I! the remaining air is led to a feed water heater Iill. If not all the heat of the remaining air is used to pre-heat the feed water the surplus air may be conducted by a pipe I8 to any place to utilize the heat for instance to warm rooms or goods.
  • the superheater I'2 for the air is arranged in advance of the superheater Afor the steam.
  • the heating of the surplus ofsair necessary to increase the efiiciency takesup much-heat from the gases of combustion and the latter arrive at the steam superheater 4 at a comparatively low temperature.
  • the plant comprises two combustion chambers 29 and ttll, one for the steam -boiler A and one tor theairheater.
  • the air for the combustion iswfed by the pipes 'ItI and I62 to the grates 34, .32.
  • the steam turbine t is a back pressure turbine.
  • the feed water is delivered by pump '8 to :the preheating devices IDTI, H12, H33 and from. the latter into the boiler I.
  • the mounting of the steam and air heaters and the means to feed and to mix the hot gases with the gas of combustion of the steam boiler may be made in any suitable manner.
  • a steam generator comprising a steam boiler, a combustion chamber and steam superheater, of an air heater arranged between said steam boiler and said steam super-heater, and means for conducting a portion of the hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam super-heater is arranged while the remaining hot gases heat the boiler and the air heater.
  • a steam generator comprising a steam boiler, a combustion chamber and a steam superheater, of an air heater arranged between said steam boiler and said steam super-heater, a duct for conducting a portion of the hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam super-heater is arranged while the remaining combustion gases heat the boiler and the air heater, and means for controlling the amount of hot gases passing through said duct.
  • a steam generator comprising a steam boiler, a combustion chamber and a steam super-heater, an air heater arranged between said steam boiler and said steam super-heater, controllable means for conducting hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam superheater is arranged, a prime mover operated by the steam produced by said steam generator, a prime mover operated by the air heated by said air heater, means for conducting a portion of the air exhausted by said last mentioned prime mover into the combustion chamber of said steam generator, a feed water preheater, means for condensing the steam exhausted by said steam operated prime mover, means including a pump for conducting the condensed water through said preheater and into said steam boiler, and means for conducting the remaining portion of the air exhausted by said hot air operated prime mover through said preheater for heating the feed water passing therethrough.
  • a steam generator comprising a steam boiler, a combustion chamber and a steam super-heater.
  • a steam generator Comprising a steam boiler, a combustion chamber below said steam boiler and a steam super-heater in a zone above said steam boiler, of an air heater arranged in another zone above said steam boiler, and means for conducting a portion of the hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam super-heater is arranged.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Description

May 31, 1949 w, KARRER 2,471,755
STEAM-AIR-THERMAL POWER PLANT Filed March 1, 1945 feed line "2.
Patented May 31, 1949 OFFICE STEAM-AIR-THERMAL rowan PLANT Werner Karrer, Zurich, Switzerland, assignor to Maschinenfabrik. Oerlikon, Zurich-Oerlikon,
Switzerland Application March 1, 1945, Serial No. 580,438
In Switzerland January 5,1944
Section 1, Public Law 690, August 8, 1946 Patent expires January 5, 1964' Claims. 1
In steam-gas-thermalpower plants any increase of the efficiency by an intermediate heating of the air working in the turbine and by increasing the amount of air over that necessary for the combustion is very limited. To increase the efficiency ofa turbine plant it would seem feasible to introduce more fuel to heat a larger amount of lair.v .By calculation it has been found that'by doing so the temperatureof the gases of combustion after leaving the steam boiler would be dangerously highand might injure the material of the steamtsu-perheater or air heater. If the temperature remains within the allowable limits the heat after leaving the steam boiler would not suiiice to heatta larger amount of air.
The object of the present invention is to provide means to increase the efficiency of power plants of the character described by mixing hot gases with the gases of combustion after the same have left the steam boiler. The hot gases may be taken from the combustion chamber in advance of the steam boiler or the said hot gases may be produced in a separate chamberof combustion.
In the accompanying drawing two embodiments of my invention are shownby way of examples each .in sectional elevation in a diagram- .matical manner.
In Fig. l of the drawings I denotes a tubular steam boiler to which fresh water is fed by a The boiler I is arranged .above a grate The steam leaving the boiler 'I passes through a superheater 4 arranged in the :path of the combustion gases. The steam superheatedin the superheater '4 passes through a pipe 5 to a steam turbine= 6 and from there to a condenser E. The steam turbine 6 is aprime mover destined to drive anymachine 9 doing-mechanicaiwork. The feed water is fed to the boiler I by any suitable pump 8. The coil I2 denotes a device to heat air and the heated air drives a turbine I3 by which a compressor I4 and a machine I5 for performing useful work is driven.
The amount of air introduced into the air turbine plant is larger than the amount of air which is necessary to keep up the combustion of the fuel to produce steam in the boiler I. A portion of the exhaust air from the turbine I3 passes by pipe it under the grate 3. Through a pipe I! the remaining air is led to a feed water heater Iill. If not all the heat of the remaining air is used to pre-heat the feed water the surplus air may be conducted by a pipe I8 to any place to utilize the heat for instance to warm rooms or goods.
The superheater I'2 for the air is arranged in advance of the superheater Afor the steam. The heating of the surplus ofsair necessary to increase the efiiciency takesup much-heat from the gases of combustion and the latter arrive at the steam superheater 4 at a comparatively low temperature.
To transfer the heat necessary for the superheater 4, hot gases lof c'ombu'st-ion are drawn from the combustion chamberabove the: grate 3 and are led by pipe I19 into the'sspaoe between the air heating device |21and the steam superheater 4 and are mixed with the gases of combustion which have already given off part of their heat to the steam boiler I and the air heater I2. In the pipe 1 9 a controlling valve 2'0 is arranged. The influx of the hot gases bypipeii Qfis arranged in such a manner that an intimate mixture of the ases of combustion :aiter the-air'heater I2 isattained.
In Fig. 2 a plant is shown in which hot gases are added to 'the-gases'=-of. combustion of the steam boiler in advance of the airhea'ter, and in which the hot gases are produced in a separate combustion chamber; The plant comprises two combustion chambers 29 and ttll, one for the steam -boiler A and one tor theairheater. The air for the combustion iswfed by the pipes 'ItI and I62 to the grates 34, .32. The steam turbine t is a back pressure turbine. "The feed water is delivered by pump '8 to :the preheating devices IDTI, H12, H33 and from. the latter into the boiler I. The "exhaust :gases from the steam :boiler A and from the air heater B tran'sfer part-of the residual heat to the feed water. Invtheair turbine an intermediate reheating is made use or; the said air turbine comprises two separate turbines I3 I, I32 which drive ancompressor' Wand any work producing machine I5. On the grate 32 sufiicient fuel may be burnt to supply the necessary heat for the air heaters I 2|, I22. Through a pipe I'9I a part of the gases of combustion of the steam boiler I is led to the air heater I2I and is mixed with the hot gases in advance thereof to prevent the rising of the temperature in advance of the air heater IZI to a too high degree. Through another pipe I92 gases of combustion of the steam boiler plant are led into the space between the two air heaters I2I, I22. The necessary pressure drop may be produced by a fan in the conduit IBI or by a valve in the conduit I62. In the pipes H, I92 dampers 21H, 202 are arranged to coin trol the temperature in advance of the heaters I2I, I22 and keep the temperature at a predetermined height. The air discharged from the air turbine I32 is led partly to the grates 3|, 32
and. partly to the feed water heater H11 and from there to any other place for heating purposes.
The mounting of the steam and air heaters and the means to feed and to mix the hot gases with the gas of combustion of the steam boiler may be made in any suitable manner.
In both of the examples of the plant described more heat is fed to the air turbine plant by mix in with hot gases. The output of the air turbine might be increased still more. The efficiency of the entire plant is materially increased in comparison with a plant without the admixture of hot gases to the gases of combustion of the steam boiler.
What I wish to secure by United States Letters Patent is:
1. In a steam-air power plant, the combination with a steam generator comprising a steam boiler, a combustion chamber and steam superheater, of an air heater arranged between said steam boiler and said steam super-heater, and means for conducting a portion of the hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam super-heater is arranged while the remaining hot gases heat the boiler and the air heater.
2. In a steam-air power plant, the combination with a steam generator comprising a steam boiler, a combustion chamber and a steam superheater, of an air heater arranged between said steam boiler and said steam super-heater, a duct for conducting a portion of the hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam super-heater is arranged while the remaining combustion gases heat the boiler and the air heater, and means for controlling the amount of hot gases passing through said duct.
3. In a steam-air power plant, the combination, a steam generator comprising a steam boiler, a combustion chamber and a steam super-heater, an air heater arranged between said steam boiler and said steam super-heater, controllable means for conducting hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam superheater is arranged, a prime mover operated by the steam produced by said steam generator, a prime mover operated by the air heated by said air heater, means for conducting a portion of the air exhausted by said last mentioned prime mover into the combustion chamber of said steam generator, a feed water preheater, means for condensing the steam exhausted by said steam operated prime mover, means including a pump for conducting the condensed water through said preheater and into said steam boiler, and means for conducting the remaining portion of the air exhausted by said hot air operated prime mover through said preheater for heating the feed water passing therethrough.
4. In a steam-air power plant, the combination, a steam generator comprising a steam boiler, a combustion chamber and a steam super-heater.
an air heater arranged between said steam boiler and said steam super-heater, duct means including .a valve for conducting hot gases from said combustion chamber into the combustion gases where the latter, after having given off a part of their heat to said steam boiler, enter the zone in which said steam super-heater is arranged, a prime mover operated by the steam produced by said steam generator, a prime mover operated by the air heated by said air heater, means for conducting a portion of the air exhausted by said last mentioned prime mover into the combustion chamber of said steam generator, a feed water pump, a preheater for feed water, means for connecting the latter with said pump and with said boiler, and means for conducting the remaining portion of the air exhausted by said hot air operated prime mover through said preheater for heating the feed water passing therethrough.
5. In a steam-air power plant, the combination with a steam generator Comprising a steam boiler, a combustion chamber below said steam boiler and a steam super-heater in a zone above said steam boiler, of an air heater arranged in another zone above said steam boiler, and means for conducting a portion of the hot gases from said combustion chamber into the combustion gases where the latter enter the zone in which said steam super-heater is arranged.
WERNER KARRER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 64,540 Kafer May 7, 1867 709,655 Webster Sept. 23, 1902 1,184,977 Meier May 30, 1916 1,554,154 Yarrow Sept. 15, 1925 1,588,568 Bennis June 15, 1926 1,702,264 Lorenzen Feb. 19, 1929 2,114,257 Thomas Apr. 12, 1938 2,404,938 Armacost July 30, 1946 2,410,457 Nettel Nov. 5, 1946 FOREIGN PATENTS Number Country Date 627,514 Germany Mar. 17, 1936
US580438A 1944-01-05 1945-03-01 Steam-air-thermal power plant Expired - Lifetime US2471755A (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653447A (en) * 1946-10-31 1953-09-29 Bahcock & Wilcox Company Combined condensing vapor and gas turbine power plant
US2658349A (en) * 1949-01-21 1953-11-10 Tech Studien Ag Plant for the recovery of waste heat from combustible gases derived from chemical processes
US2795104A (en) * 1950-08-23 1957-06-11 Maschf Augsburg Nuernberg Ag Stationary jet engine power plant with preposed turbine
US2886012A (en) * 1951-10-01 1959-05-12 Babcock & Wilcox Co Vapor generators for mixed power plants
US3053049A (en) * 1958-04-28 1962-09-11 Combustion Eng Power plant installation
US3095699A (en) * 1958-12-18 1963-07-02 Babcock & Wilcox Co Combined gas-steam turbine power plant and method of operating the same
US3213831A (en) * 1963-12-23 1965-10-26 Combustion Eng Vapor generating apparatus
US3243359A (en) * 1961-10-06 1966-03-29 Escher Wyss Ag Closed-circuit thermal power plant with waste-heat utilization in a distillation plant
US3998059A (en) * 1973-07-12 1976-12-21 National Research Development Corporation Power systems
US4099383A (en) * 1976-06-21 1978-07-11 Texaco Inc. Partial oxidation process
US4116005A (en) * 1977-06-06 1978-09-26 General Electric Company Combined cycle power plant with atmospheric fluidized bed combustor
US4184322A (en) * 1976-06-21 1980-01-22 Texaco Inc. Partial oxidation process
US4223529A (en) * 1979-08-03 1980-09-23 General Electric Company Combined cycle power plant with pressurized fluidized bed combustor
US4253300A (en) * 1979-08-03 1981-03-03 General Electric Company Supplementary fired combined cycle power plants
US4326373A (en) * 1980-05-29 1982-04-27 General Electric Company Integrated gas turbine power generation system and process
US4326382A (en) * 1980-10-24 1982-04-27 E. H. Robbins Power plant
US4365953A (en) * 1979-07-17 1982-12-28 Claudius Peters Ag Cooler for combustible material
WO1983003636A1 (en) * 1982-04-16 1983-10-27 Baardson, Andrew, B. Power plant
US4414813A (en) * 1981-06-24 1983-11-15 Knapp Hans J Power generator system
US4637212A (en) * 1985-04-29 1987-01-20 Sulzer Brothers Limited Combined hot air turbine and steam power plant
EP1950391A1 (en) 2007-01-25 2008-07-30 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Energy optimisation process of a power plant for both energy and steam production
JP2015194306A (en) * 2014-03-31 2015-11-05 株式会社クボタ Incineration equipment and incineration method
JP2015194307A (en) * 2014-03-31 2015-11-05 株式会社クボタ Incineration equipment and incineration method
JP2015194308A (en) * 2014-03-31 2015-11-05 株式会社クボタ Incineration equipment and incineration method
JP2018025325A (en) * 2016-08-09 2018-02-15 株式会社神鋼環境ソリューション Waste treatment system and method for starting the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046955B (en) * 1955-12-08 1958-12-18 Steinmueller Gmbh L & C Waste heat recovery device for hot air or gas turbine systems

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US64540A (en) * 1867-05-07 Peter m
US709655A (en) * 1901-12-12 1902-09-23 Hosea Webster Method of superheating steam.
US1184977A (en) * 1915-08-06 1916-05-30 Edward C Meier Multiple-horizontal-unit boiler.
US1554154A (en) * 1920-02-10 1925-09-15 Harold E Yarrow Superheater of water-tube boilers
US1588568A (en) * 1919-03-12 1926-06-15 Bennis Alfred William Power-producing system
US1702264A (en) * 1922-11-27 1929-02-19 Lorenzen Christian Gas turbine
DE627514C (en) * 1932-11-01 1936-03-17 Siemens Schuckertwerke Akt Ges Steam generator with a furnace that works under high pressure
US2114257A (en) * 1935-07-13 1938-04-12 Morse Boulger Destructor Compa Incinerator
US2404938A (en) * 1945-02-10 1946-07-30 Comb Eng Co Inc Gas turbine plant
US2410457A (en) * 1940-04-20 1946-11-05 Nettel Friedrich Operation and regulation of combustion turbines

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US64540A (en) * 1867-05-07 Peter m
US709655A (en) * 1901-12-12 1902-09-23 Hosea Webster Method of superheating steam.
US1184977A (en) * 1915-08-06 1916-05-30 Edward C Meier Multiple-horizontal-unit boiler.
US1588568A (en) * 1919-03-12 1926-06-15 Bennis Alfred William Power-producing system
US1554154A (en) * 1920-02-10 1925-09-15 Harold E Yarrow Superheater of water-tube boilers
US1702264A (en) * 1922-11-27 1929-02-19 Lorenzen Christian Gas turbine
DE627514C (en) * 1932-11-01 1936-03-17 Siemens Schuckertwerke Akt Ges Steam generator with a furnace that works under high pressure
US2114257A (en) * 1935-07-13 1938-04-12 Morse Boulger Destructor Compa Incinerator
US2410457A (en) * 1940-04-20 1946-11-05 Nettel Friedrich Operation and regulation of combustion turbines
US2404938A (en) * 1945-02-10 1946-07-30 Comb Eng Co Inc Gas turbine plant

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653447A (en) * 1946-10-31 1953-09-29 Bahcock & Wilcox Company Combined condensing vapor and gas turbine power plant
US2658349A (en) * 1949-01-21 1953-11-10 Tech Studien Ag Plant for the recovery of waste heat from combustible gases derived from chemical processes
US2795104A (en) * 1950-08-23 1957-06-11 Maschf Augsburg Nuernberg Ag Stationary jet engine power plant with preposed turbine
US2886012A (en) * 1951-10-01 1959-05-12 Babcock & Wilcox Co Vapor generators for mixed power plants
US3053049A (en) * 1958-04-28 1962-09-11 Combustion Eng Power plant installation
US3095699A (en) * 1958-12-18 1963-07-02 Babcock & Wilcox Co Combined gas-steam turbine power plant and method of operating the same
US3243359A (en) * 1961-10-06 1966-03-29 Escher Wyss Ag Closed-circuit thermal power plant with waste-heat utilization in a distillation plant
US3213831A (en) * 1963-12-23 1965-10-26 Combustion Eng Vapor generating apparatus
US3998059A (en) * 1973-07-12 1976-12-21 National Research Development Corporation Power systems
US4099383A (en) * 1976-06-21 1978-07-11 Texaco Inc. Partial oxidation process
US4184322A (en) * 1976-06-21 1980-01-22 Texaco Inc. Partial oxidation process
US4116005A (en) * 1977-06-06 1978-09-26 General Electric Company Combined cycle power plant with atmospheric fluidized bed combustor
US4365953A (en) * 1979-07-17 1982-12-28 Claudius Peters Ag Cooler for combustible material
US4223529A (en) * 1979-08-03 1980-09-23 General Electric Company Combined cycle power plant with pressurized fluidized bed combustor
US4253300A (en) * 1979-08-03 1981-03-03 General Electric Company Supplementary fired combined cycle power plants
US4326373A (en) * 1980-05-29 1982-04-27 General Electric Company Integrated gas turbine power generation system and process
US4326382A (en) * 1980-10-24 1982-04-27 E. H. Robbins Power plant
US4414813A (en) * 1981-06-24 1983-11-15 Knapp Hans J Power generator system
WO1983003636A1 (en) * 1982-04-16 1983-10-27 Baardson, Andrew, B. Power plant
US4637212A (en) * 1985-04-29 1987-01-20 Sulzer Brothers Limited Combined hot air turbine and steam power plant
EP1950391A1 (en) 2007-01-25 2008-07-30 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Energy optimisation process of a power plant for both energy and steam production
US20080178604A1 (en) * 2007-01-25 2008-07-31 L'air Liquid Societe Anonyme Pour L'etude Et L'exloitation Des Procedes Georges Claude Process for Optimizing the Energy of a Combined Heat and Power Generation Site
FR2911912A1 (en) * 2007-01-25 2008-08-01 Air Liquide METHOD FOR ENERGETIC OPTIMIZATION OF AN ENERGY PRODUCTION SITE AND WATER VAPOR.
US8056316B2 (en) 2007-01-25 2011-11-15 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for optimizing the energy of a combined heat and power generation site
JP2015194306A (en) * 2014-03-31 2015-11-05 株式会社クボタ Incineration equipment and incineration method
JP2015194307A (en) * 2014-03-31 2015-11-05 株式会社クボタ Incineration equipment and incineration method
JP2015194308A (en) * 2014-03-31 2015-11-05 株式会社クボタ Incineration equipment and incineration method
JP2018025325A (en) * 2016-08-09 2018-02-15 株式会社神鋼環境ソリューション Waste treatment system and method for starting the same

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DE839290C (en) 1952-05-19
FR54082E (en) 1947-05-29
GB592243A (en) 1947-09-11

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