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61. 发明专利

ES2099161T3 未知
公开(公告)号：ES2099161T3
公开(公告)日：1997-05-16
申请号：ES91911966
申请日：1991-06-27
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , KURAMASHI KOUJI , NAKASHITA SHIGETO , ISHII KEIJI , JIMBO TADASHI , HODOZUKA KUNIO
IPC分类号： F23D1/00 , F23C99/00 , F23D17/00
摘要： A combustion apparatus comprises a mixture feeding pipe (1) through which a mixture of pulverized coal and combustion air flows. The mixture is injected into a furnace (2) through the mixture feeding pipe and then ignited. A radial outwardly flared flame maintaining ring (3) is provided at the tip end of the mixture feeding pipe. The flame maintaining ring is under a reduction atmosphere and exposed to high temperatures due to radiant heat from the furnace. Therefore, there is a possibility of burnout of the flame maintaining ring or growth of slag on the flame maintaining ring. In order to prevent this, a projection (6) is disposed to extend into the furnace beyond the flame maintaining ring so as to shut off radiation from the inside of the furnace to the flame maintaining ring adequately, thereby suppressing an excessive temperature rise. Combustion air flows along the surface of the projection so as to locate the projection under an oxidation atmosphere. A pulverized coal/air separating member (7) extends through within the mixture feeding pipe. A portion where separation of the flow is forcibly occurred is formed locally in a conical end portion (II) of the pulverized coal/air separating member. It is therefore possible to effect a combustion in a stabilized manner as a whole regardless of the unit capacity and load of the combustion apparatus.

62. 发明专利

AT148546T 未知
公开(公告)号：AT148546T
公开(公告)日：1997-02-15
申请号：AT91911966
申请日：1991-06-27
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , KURAMASHI KOUJI , NAKASHITA SHIGETO , ISHII KEIJI , JIMBO TADASHI , HODOZUKA KUNIO , BABA AKIRA , KOBAYASHI HIRONOBU
IPC分类号： F23D1/00 , F23C99/00 , F23D17/00
摘要： A combustion apparatus comprises a mixture feeding pipe (1) through which a mixture of pulverized coal and combustion air flows. The mixture is injected into a furnace (2) through the mixture feeding pipe and then ignited. A radial outwardly flared flame maintaining ring (3) is provided at the tip end of the mixture feeding pipe. The flame maintaining ring is under a reduction atmosphere and exposed to high temperatures due to radiant heat from the furnace. Therefore, there is a possibility of burnout of the flame maintaining ring or growth of slag on the flame maintaining ring. In order to prevent this, a projection (6) is disposed to extend into the furnace beyond the flame maintaining ring so as to shut off radiation from the inside of the furnace to the flame maintaining ring adequately, thereby suppressing an excessive temperature rise. Combustion air flows along the surface of the projection so as to locate the projection under an oxidation atmosphere. A pulverized coal/air separating member (7) extends through within the mixture feeding pipe. A portion where separation of the flow is forcibly occurred is formed locally in a conical end portion (II) of the pulverized coal/air separating member. It is therefore possible to effect a combustion in a stabilized manner as a whole regardless of the unit capacity and load of the combustion apparatus.

63. 发明专利

CA2021298C BURNER APPARATUS FOR PULVERIZED COAL 未知
公开(公告)号：CA2021298C
公开(公告)日：1996-04-09
申请号：CA2021298
申请日：1990-07-16
申请人： BABCOCK HITACHI KK
发明人： OKIURA KUNIO , BABA AKIRA , OYATSU NORIYUKI , KAKU HIROYUKI , MORITA SHIGEKI , KOBAYASHI HIRONOBU
IPC分类号： F23D1/00
摘要： A burner apparatus for pulverized coal comprises a pulverized coal supply pipe, a starter oil burner extending within the pulverized coal supply pipe to define therebetween a tubular passage through which a mixture of combustion air and pulverized coal passes into a furnace, a flame holder provided at an outer periphery of one end of the pulverized coal supply pipe facing to the furnace, a cylindrical member disposed in the tubular passage for dividing a part thereof into two coaxial passage parts, and a valve adapted to close an axial end opening of the cylindrical member for varying a concentration of pulverized coal in a radial outer passage part of the coaxial passage parts.

64. 发明专利

PL168067B1 INCINERATOR 未知
公开(公告)号：PL168067B1
公开(公告)日：1995-12-30
申请号：PL29403591
申请日：1991-06-27
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , KURAMASHI KOUJI , NAKASHITA SHIGETO , ISHII KEIJI , JIMBO TADASHI , HODOZUKA KUNIO , BABA AKIRA , KOBAYASHI HIRONOBU
IPC分类号： F23C99/00 , F23D1/00 , F23D17/00 , F23D1/04
摘要： A combustion apparatus comprises a mixture feeding pipe (1) through which a mixture of pulverized coal and combustion air flows. The mixture is injected into a furnace (2) through the mixture feeding pipe and then ignited. A radial outwardly flared flame maintaining ring (3) is provided at the tip end of the mixture feeding pipe. The flame maintaining ring is under a reduction atmosphere and exposed to high temperatures due to radiant heat from the furnace. Therefore, there is a possibility of burnout of the flame maintaining ring or growth of slag on the flame maintaining ring. In order to prevent this, a projection (6) is disposed to extend into the furnace beyond the flame maintaining ring so as to shut off radiation from the inside of the furnace to the flame maintaining ring adequately, thereby suppressing an excessive temperature rise. Combustion air flows along the surface of the projection so as to locate the projection under an oxidation atmosphere. A pulverized coal/air separating member (7) extends through within the mixture feeding pipe. A portion where separation of the flow is forcibly occurred is formed locally in a conical end portion (II) of the pulverized coal/air separating member. It is therefore possible to effect a combustion in a stabilized manner as a whole regardless of the unit capacity and load of the combustion apparatus.

65. 发明专利

SK59192A3 COMBUSTION DEVICE 未知
公开(公告)号：SK59192A3
公开(公告)日：1995-07-11
申请号：SK59192
申请日：1991-06-27
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , KURAMASHI KOUJI , NAKASHITA SHIGETO , ISHII KEIJI , JIMBO TADASHI , HODOZUKA KUNIO , BABA AKIRA , KOBAYASHI HIRONOBU
IPC分类号： F23C99/00 , F23D17/00 , F23D1/00
摘要： A combustion apparatus comprises a mixture feeding pipe (1) through which a mixture of pulverized coal and combustion air flows. The mixture is injected into a furnace (2) through the mixture feeding pipe and then ignited. A radial outwardly flared flame maintaining ring (3) is provided at the tip end of the mixture feeding pipe. The flame maintaining ring is under a reduction atmosphere and exposed to high temperatures due to radiant heat from the furnace. Therefore, there is a possibility of burnout of the flame maintaining ring or growth of slag on the flame maintaining ring. In order to prevent this, a projection (6) is disposed to extend into the furnace beyond the flame maintaining ring so as to shut off radiation from the inside of the furnace to the flame maintaining ring adequately, thereby suppressing an excessive temperature rise. Combustion air flows along the surface of the projection so as to locate the projection under an oxidation atmosphere. A pulverized coal/air separating member (7) extends through within the mixture feeding pipe. A portion where separation of the flow is forcibly occurred is formed locally in a conical end portion (II) of the pulverized coal/air separating member. It is therefore possible to effect a combustion in a stabilized manner as a whole regardless of the unit capacity and load of the combustion apparatus.

66. 发明专利

FI920736A0 未知
公开(公告)号：FI920736A0
公开(公告)日：1992-02-20
申请号：FI920736
申请日：1992-02-20
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , KURAMASHI KOUJI , NAKASHITA SHIGETO , ISHII KEIJI , JIMBO TADASHI , HODOZUKA KUNIO , BABA AKIRA , KOBAYASHI HIRONOBU
IPC分类号： F23D1/00 , F23C99/00 , F23D17/00 , F23D
摘要： A combustion apparatus comprises a mixture feeding pipe (1) through which a mixture of pulverized coal and combustion air flows. The mixture is injected into a furnace (2) through the mixture feeding pipe and then ignited. A radial outwardly flared flame maintaining ring (3) is provided at the tip end of the mixture feeding pipe. The flame maintaining ring is under a reduction atmosphere and exposed to high temperatures due to radiant heat from the furnace. Therefore, there is a possibility of burnout of the flame maintaining ring or growth of slag on the flame maintaining ring. In order to prevent this, a projection (6) is disposed to extend into the furnace beyond the flame maintaining ring so as to shut off radiation from the inside of the furnace to the flame maintaining ring adequately, thereby suppressing an excessive temperature rise. Combustion air flows along the surface of the projection so as to locate the projection under an oxidation atmosphere. A pulverized coal/air separating member (7) extends through within the mixture feeding pipe. A portion where separation of the flow is forcibly occurred is formed locally in a conical end portion (II) of the pulverized coal/air separating member. It is therefore possible to effect a combustion in a stabilized manner as a whole regardless of the unit capacity and load of the combustion apparatus.

67. 发明专利

AU612186B2 PULVERIZED COAL COMBUSTION APPARATUS 未知
公开(公告)号：AU612186B2
公开(公告)日：1991-07-04
申请号：AU2349788
申请日：1988-10-06
申请人： BABCOCK HITACHI KK
发明人： OKADA OSAMU , MASAI TADAHISA , TOMINAGA SHIGERU , INADA HIROSHI , MORITA SHIGEKI , NAKASHITA SHIGETO
IPC分类号： F23C99/00 , F23D1/00 , F23D1/06
摘要： An apparatus which comprises a burner (1), through which pulverized coal and carrier air are passed to be burnt in a combustion chamber (2), and a flame retainer (18) disposed at an end of the burner. The flame retainer includes a flared tube (17) and an annular plate (16), which plate has a plurality of parts projecting radially inwards and being equiangularly spaced from each other. The annular plate comprises a plurality of ceramic pieces (23) and a plurality of fastener elements (25), both of which are arranged and assembled alternately to form the annular plate. The ceramic piece is shaped such that it projects radially inwards to serve as the projecting part when assembled. The ceramic piece has at opposite sides thereof smoothly curved edge surfaces (24a, 24b), and the fastener element has at opposite sides thereof smoothly curved edge surfaces (26a, 26b) which are engaged with the curved edge surfaces of the two neighbouring two ceramic pieces.

68. 发明专利

ZA8501121B APPARATUS FOR COAL COMBUSTION 未知
公开(公告)号：ZA8501121B
公开(公告)日：1985-10-30
申请号：ZA8501121
申请日：1985-02-14
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , MASAI TADAHISA , NAKASHITA SHIGETO , UEMURA TOSHIO , KOUDA FUMIO , NAWATA TSUYOSHI
IPC分类号： F23C99/00 , F23D1/00 , F23D1/02 , F23B , F23K , F23L
CPC分类号： F23D1/02

69. 发明专利

SK287642B6 Solid fuel burner and combustion method using solid fuel burner 未知
公开(公告)号：SK287642B6
公开(公告)日：2011-05-06
申请号：SK5112002
申请日：2001-08-03
申请人： BABCOCK HITACHI KK
发明人： TSUMURA TOSHIKAZU , OKAZAKI HIROFUMI , SHIMOGORI MIKI , KIYAMA KENJI , KURAMASHI KOUJI , KIKUCHI HITOSHI , TAKAHASHI YOSHITAKA , MORITA SHIGEKI , SAKAI KAZUHITO , TANIGUCHI MASAYUKI , KOBAYASHI HIRONOBU
IPC分类号： F23D1/00 , F23C5/32 , F23C6/04 , F23C7/00 , F23K3/02 , F23L15/00
摘要： A burner (42) for solid fuel comprises a fuel nozzle (11) to eject a fluid mixture consisting of a solid fuel and a carrier gas, further a condenser (33) consisting of a conical section having a gradually increasing cross section and a conical section having a gradually decreasing cross section starting from the burner-upstream side is provided on the outer wall surface of said center air nozzle. Further a passage contracting member (32) has an effect where the flow of fuel particles (of pulverized coal) having a larger inertia than that of the fuel carrier gas (exhaust gas) is focused at the center axis region of the burner. Further, the condenser (33) provided downstream of the passage contracting member (32) has the effect that the flow of fuel particles (of pulverized coal) having been focused at the center axis region by the passage contracting member (32) is expanded by the condenser (33) and then flows through the passage of the fuel nozzle (11), whereby burner (42) comprises one or more outer air nozzles (13, 14) provided outside said fuel nozzle (11) and ejecting combustion air and additional air nozzle (12). The additional air nozzles (12) are placed by side of the condenser (33) and in the inner wall surface of said fuel nozzle (11).

70. 发明专利

CA2507814C COMBUSTION APPARATUS AND WIND BOX 未知
公开(公告)号：CA2507814C
公开(公告)日：2010-11-02
申请号：CA2507814
申请日：2003-08-27
申请人： BABCOCK HITACHI KK
发明人： KIYAMA KENJI , MORITA SHIGEKI , OKADA OSAMU , KURAMASHI KOUJI , YANO TAKANORI , OCHI KENICHI , BABA AKIRA , SHIMOGORI MIKI , FUKUCHI TAKERU , YAMAGUCHI HIROSHI , KOBAYASHI HIRONOBU , TANIGUCHI MASAYUKI , OKAZAKI HIROFUMI , YAMAMOTO KENJI
IPC分类号： F23C9/08 , F23L7/00 , F23C99/00 , F23L9/00 , F23L9/04 , F23L15/04
摘要： The invention provides a combustion apparatus which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a combustion apparatus provided with a burner burning a fuel within a furnace in a theoretical air ratio or less, and an air port supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region. Further, the invention provides a wind box which can inhibit an NOx generation even in the case of promoting a mixing between a high-temperature combustion gas and an air so as to intend to reduce an unburned combustible. In a wind box having an air port arranged in a back flow side of the burner and supplying a combustion air for a shortfall in the burner, a supply apparatus for supplying a nitrogen oxide generation inhibiting gas is provided in a mixing region between the both or near the mixing region.

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