公开(公告)号：US06568185B1

公开(公告)日：2003-05-27

申请号：US10006350

申请日：2001-12-03

Applicant: Ovidiu Marin ,  Erwin Penfornis

Inventor： Ovidiu Marin ,  Erwin Penfornis

IPC: F01K2506

CPC classification number: F25J3/04145 ,  F23C2201/101 ,  F23L7/00 ,  F23L2900/07002 ,  F23L2900/07005 ,  F25J3/04018 ,  F25J3/0403 ,  F25J3/04115 ,  F25J3/04533 ,  F25J3/04563 ,  F25J3/04581 ,  F25J3/04593 ,  F25J3/04612 ,  F25J2215/50 ,  F25J2260/42 ,  Y02E20/344 ,  Y02P80/154

Abstract: This invention proposes innovative techniques of NOx reduction in boiler operation through an adaptation of staged combustion in combustion boilers. In preferred processes, air is fed into an air separation unit, and a nitrogen-enriched stream is combined with air to produce a nitrogen-enriched first stage air stream, and at least a portion of an oxygen-enriched stream is mixed with air to produce an oxygen-enriched second stage air stream. A reduction in NOx and increase in efficiency is promoted by the inventive processes and systems.

Abstract translation: 本发明通过适应燃烧锅炉中的分段燃烧来提出锅炉运行中NOx还原的创新技术。 在优选的方法中，将空气进料到空气分离单元中，并且将富氮流与空气混合以产生富氮第一级空气流，并且至少一部分富氧流与空气混合 产生富氧第二级气流。 本发明的方法和系统促进了NOx的降低和效率的提高。

公开(公告)号：US20020066396A1

公开(公告)日：2002-06-06

申请号：US10001973

申请日：2001-12-05

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Isao Torii ,  Kenji Tagashira ,  Kazuyuki Myouyou ,  Tatsuo Yokoshiki ,  Takehiko Shirahata

IPC: F23G001/00

CPC classification number: F23L9/00 ,  F23C6/045 ,  F23C2201/101 ,  F23C2900/06041 ,  F23G5/30 ,  F23G2203/501

Abstract: A fluidized bed incinerator having a combustion furnace includes first to fourth combustion sections. Fuel is supplied to the first combustion section and an combustion exhaust gas is exhausted after the fourth combustion section. First to fourth airs are supplied to the first to fourth combustion sections in first to fourth air surplus rates, respectively. The second air surplus rate is equal to or more than the first air surplus rate, the third air surplus rate is equal to or more than the second air surplus rate, and the fourth air surplus rate is equal to or more than the third air surplus rate.

Abstract translation: 具有燃烧炉的流化床焚烧炉包括第一至第四燃烧段。 向第一燃烧部供给燃料，在第四燃烧部之后排出燃烧废气。 第一至第四空气分别以第一至第四空气剩余率供应到第一至第四燃烧段。 第二空气剩余率等于或大于第一空气剩余率，第三空气剩余率等于或大于第二空气剩余率，第四空气剩余率等于或大于第三空气过剩 率。

公开(公告)号：US5769008A

公开(公告)日：1998-06-23

申请号：US700525

申请日：1996-08-28

Applicant: Felix Zalmanovich Finker ,  Javad Berovich Akhmedov ,  Igor Borisovich Kubishkin ,  Czeslaw Sobczuk ,  Jan Swirski ,  Mark Semenovich Glazman

Inventor： Felix Zalmanovich Finker ,  Javad Berovich Akhmedov ,  Igor Borisovich Kubishkin ,  Czeslaw Sobczuk ,  Jan Swirski ,  Mark Semenovich Glazman

IPC: F23C5/24 ,  F23C3/00 ,  F23C5/00 ,  F23C6/04 ,  F23C7/02 ,  F23D1/00 ,  F23K1/00 ,  F23K3/02 ,  F23N1/02 ,  F23G5/00

CPC classification number: F23K3/02 ,  F23C3/008 ,  F23C5/00 ,  F23C6/047 ,  F23C7/02 ,  F23K1/00 ,  F23C2201/101 ,  F23C2201/301 ,  F23K2201/30 ,  F23K2203/102

Abstract: The low-emission swirling-type furnace is designed to burn organic fuel and it can be most advantegeously used for dust combustion. A low-emission swirling-type furnace, according to the invention, comprises a combustion chamber (1) with a prismatic dry-bottom hopper (5) having a slot mouth, and an undergrate blast inlet means (7) disposed thereunder. The furnace includes at least one burner (2) formed by at least a pair of ducts (2a,2b ) lying one above the other and intended for supplying the air-fuel mixture. The ducts (2a, 2b) are each provided with a device (3, 4) for controlling the "air/fuel" ratio, ensuring such a ratio between the amount of air and the amount of fuel in each of the ducts (2a,2b ) that for the overlying duct (2a), this ratio turns out to be invariably higher than for the underlying duct (2b). The longitudinal axes of the ducts (2a, 2b) are preferably so inclined that the angle between the longitudinal axis of the duct (2b) and the projection of this axis onto the furnace wall for an underlying duct is less than that for the overlying duct (2a). Furthermore, the furnace may also be provided with a means (8) for supplying the fuel of a specific size composition into each duct. During operating of such furnace, three functional zones are generated in the heating volume, namely: the ignition and active combustion zone, the reduction zone, and the reburning zone. This results in a reduced discharge of nitrogen oxides, along with an economical performance of the furnace.

Abstract translation: PCT No.PCT / RU95 / 00282 Sec。 371日期：1996年8月28日 102（e）日期1996年8月28日PCT 1995年12月26日PCT PCT。 公开号WO96 / 21125 日期1996年7月11日低排放旋流式炉子设计用于燃烧有机燃料，可最有效地用于粉尘燃烧。 根据本发明的低排放旋流型炉包括具有槽口的棱柱形干底漏斗（5）的燃烧室（1）和设置在其下方的底部鼓风入口装置（7）。 该炉包括至少一个燃烧器（2），所述燃烧器（2）由至少一对彼此位于另一个之上并用于供应空气 - 燃料混合物的管道（2a，2b）形成。 管道（2a，2b）各自设置有用于控制“空气/燃料”比率的装置（3,4），确保空气量和每个管道（2a，2b）中的燃料量之间的比例， 2b）对于上覆管道（2a），该比率总是高于下面的管道（2b）。 管道（2a，2b）的纵向轴线优选地是这样倾斜的，使得管道（2b）的纵向轴线与该轴线的投影到下一个管道的炉壁上的角度小于上覆管道 （2a）。 此外，炉子还可以设置有用于将特定尺寸组合物的燃料供应到每个管道中的装置（8）。 在这种炉子的运行过程中，在加热容积中产生三个功能区，即点火和主动燃烧区，还原区和再燃烧区。 这导致氮氧化物的排放减少，以及炉的经济性能。

公开(公告)号：US5756059A

公开(公告)日：1998-05-26

申请号：US848773

申请日：1997-05-02

Applicant: Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

Inventor： Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

IPC: B01D53/56 ,  F23C6/04 ,  F23J7/00 ,  B01J8/00

CPC classification number: B01D53/56 ,  F23C6/047 ,  F23J7/00 ,  F23C2201/101 ,  F23C2201/301 ,  F23C2900/01001 ,  F23J2215/10 ,  F23J2219/20 ,  Y02C20/10

Abstract: The present invention is related to methods and systems for preventing the release of nitrogen oxides with combustion flue gases emitted to the atmosphere. The invention is specifically directed to the removal of nitric oxide, nitrogen dioxide, and nitrous oxide from flue gas in stationary combustion systems. The methods of the invention improve efficiency of conventional reburning and advanced reburning processes by two key improvements, including the injection of a reducing agent into the reburning zone and the use of promoters, which considerably enhance NO.sub.x control. The promoters are metal-containing compounds that can be added to the reducing agents. These improvements allow either one or two stages of reducing agent injection for greater NO.sub.x control.

Abstract translation: 本发明涉及用于防止排放到大气中的燃烧烟道气释放氮氧化物的方法和系统。 本发明特别涉及在固定燃烧系统中从烟道气中去除一氧化氮，二氧化氮和一氧化二氮。 本发明的方法通过两个关键的改进提高了常规再燃烧和高级再燃烧过程的效率，包括将还原剂注入再燃烧区域以及使用促进剂，这显着增强了NOx控制。 促进剂是可以添加到还原剂中的含金属化合物。 这些改进允许一个或两个阶段的还原剂注入用于更大的NOx控制。

公开(公告)号：US5755818A

公开(公告)日：1998-05-26

申请号：US489910

申请日：1995-06-13

Applicant: Geoffrey Bruce Tuson ,  Ronald William Schroeder ,  Hisashi Kobayashi

Inventor： Geoffrey Bruce Tuson ,  Ronald William Schroeder ,  Hisashi Kobayashi

IPC: C03B5/235 ,  C04B7/44 ,  F23C6/04 ,  F23L7/00 ,  F27B3/22 ,  F27D99/00 ,  F23M3/04

CPC classification number: F27D99/0033 ,  C03B5/235 ,  C04B7/4407 ,  F23C6/045 ,  F23L7/007 ,  F27B3/22 ,  F23C2201/101 ,  Y02E20/344 ,  Y02P40/55

Abstract: An improved staged combustion method useful with oxy-fuel combustion and in a furnace which contains a charge, wherein substoichiometric combustion and secondary oxidant injection are carried out in an orientation which forms a more oxidizing or a more reducing atmosphere proximate the charge surface than would be the case with a homogeneous furnace atmosphere.

Abstract translation: 一种用于氧燃料燃烧的改进的分段燃烧方法和在含有电荷的炉中，其中亚化学计量燃烧和二次氧化剂注入是在靠近电荷表面形成更氧化或更多还原气氛的方向上进行的， 具有均质炉气氛的情况。

公开(公告)号：US5660125A

公开(公告)日：1997-08-26

申请号：US435707

申请日：1995-05-05

Applicant: Michael C. Tanca

Inventor： Michael C. Tanca

IPC: F23C6/04 ,  F23C10/10 ,  F23L3/00 ,  F23J11/00

CPC classification number: F23C10/10 ,  F23C6/045 ,  F23C2201/101

Abstract: A method for enhancing the minimization of NO.sub.x control in a circulating fluid bed steam generator into which there is injected fuel, fluidizing air, a lower level of combustion air and an upper level of combustion air. The fuel is injected at a first location, the fluidizing air is injected at a second location, the lower level of combustion air is injected at a third location and the upper level of combustion air is injected at a fourth location. In order to enhance the minimization of NO.sub.x control within a circulating fluid bed steam generator the lower level combustion air as well as the upper level combustion air are each biased in the horizontal plane as well as the vertical plane so as to thereby control the lower level combustion air flow and the upper level combustion air flow such that local stoichiometries within the circulating fluid bed steam generator are maintained within a range of 70% stoichiometry to 90% stoichiometry.

Abstract translation: 一种用于增强循环流化床蒸汽发生器中最小化NOx控制的方法，其中喷射燃料，流化空气，较低水平的燃烧空气和较高级别的燃烧空气。 在第一位置喷射燃料，在第二位置喷射流化空气，在第三位置喷射较低级别的燃烧空气，并在第四位置喷射上层的燃烧空气。 为了提高循环流化床蒸汽发生器中NOx控制的最小化，下层燃烧空气以及上层燃烧空气各自在水平面和垂直平面中偏置，从而控制较低的水平 燃烧空气流和上层燃烧空气流，使得循环流化床蒸汽发生器内的局部化学计量保持在70％化学计量比至90％化学计量的范围内。

公开(公告)号：US4474551A

公开(公告)日：1984-10-02

申请号：US381304

申请日：1982-05-24

Applicant: Kazumi Iwai ,  Tadashi Shinozaki ,  Yoshio Okamoto ,  Hiroshi Inoue ,  Yoshifumi Kunugi ,  Shigeyuki Yamazaki

Inventor： Kazumi Iwai ,  Tadashi Shinozaki ,  Yoshio Okamoto ,  Hiroshi Inoue ,  Yoshifumi Kunugi ,  Shigeyuki Yamazaki

IPC: F23C6/04 ,  F23D15/00

CPC classification number: F23C6/04 ,  F23C2201/101

Abstract: A combustion apparatus which includes tertiary air chambers are formed on both sides of a secondary combustion chamber, with tertiary air being supplied to a combustion flame produced within the secondary combustion chamber. The secondary combustion chamber has a flow channel width greater than a width of an opening in a throttle plate provided on the upstream side thereof, thereby achieving universality with respect to enabling use of various fuel and to increase the capacity of the combustion apparatus while reducing the size thereof.

Abstract translation: 包括三次空气室的燃烧装置形成在二次燃烧室的两侧，三次空气被供给到二次燃烧室内产生的燃烧火焰。 二次燃烧室具有大于设置在其上游侧的节流板的开口的宽度的流路宽度，从而实现了能够使用各种燃料的普遍性，并且在减少燃烧装置的同时增加燃烧装置的容量 大小。

公开(公告)号：US4438709A

公开(公告)日：1984-03-27

申请号：US423591

申请日：1982-09-27

Applicant: Richard W. Borio ,  Hugh W. Nelson ,  Arun K. Mehta

Inventor： Richard W. Borio ,  Hugh W. Nelson ,  Arun K. Mehta

IPC: F23C99/00 ,  F23C6/04 ,  F23D1/00 ,  F23K1/00

CPC classification number: F23C6/047 ,  F23K1/00 ,  F23C2201/101 ,  F23C2201/301

Abstract: A conventional pulverized coal-fired furnace is supplied fuel at two different levels. The raw coal is classified into a stream of relatively pure coal ground to conventional fineness for burners at the lower level, and a stream of very finely divided coal with a large, heavy mineral content for burners at the higher level.

Abstract translation: 传统的粉煤燃烧炉是两种不同级别的供应燃料。 原煤被分为相对纯煤的地层，以及较低级别的燃烧器的常规细度，以及较高级别的燃烧器的大量重矿物质的非常细碎的煤流。

公开(公告)号：US4060378A

公开(公告)日：1977-11-29

申请号：US695567

申请日：1976-06-14

Applicant: Karoly Peredi

Inventor： Karoly Peredi

IPC: F23C6/04 ,  F23C7/02 ,  F23M3/04 ,  F27B1/10

CPC classification number: F23C6/045 ,  F23B5/00 ,  F23C2201/101

Abstract: Reasons of ecology, health and prevention of corrosion require firing methods and furnaces with which the contents of soot and uncombustible gases such as carbon monoxide, hydrogen, hydrocarbons as well as nitrogen oxides and sulfur trioxides do not excess certain levels. This is obtained by a firing method in which a fuel is decomposed with deficient amounts of primary combustion air to combustible gases. Such gases are combusted by the admixture of secondary and tertiary combustion air amounts whereby a flame is obtained which is extended in space and time and, thus, the temperature of which does not rise above moderate values such as 1400.degree. C. Prior to being exhausted, the combustion gases are thoroughly mixed so as to obtain perfect combustion of possibly subsisting combustible substances. Exhausting takes place with heat withdrawal so that cool and pure combustion gases enter the ambiency. The furnace suitable to carry out such method is distinguished by ceramic walls as well as a combustor at the inlet extremity of the furnace. At least one heat withdrawal means is provided downstream the combustor.

Abstract translation: 生态，健康和防止腐蚀的原因需要燃烧方法和炉子，其中烟灰和不可燃气体如一氧化碳，氢气，碳氢化合物以及氮氧化物和三氧化硫的含量不超过某些水平。 这是通过燃烧方法获得的，其中燃料以不足量的初级燃烧空气分解成可燃气体。 这种气体通过二次和三次燃烧空气量的混合物燃烧，从而获得在空间和时间上延伸的火焰，因此其温度不会升高到中等值（如1400℃）之前。在被耗尽之前 ，燃烧气体被充分混合，以获得可能存在的可燃物质的完全燃烧。 通过放热进行排气，以使冷却和纯净的燃烧气体进入氛围。 适用于实施这种方法的炉子由陶瓷壁以及在炉的入口端处的燃烧器来区分。 在燃烧器下游设有至少一个取热装置。

公开(公告)号：US10071908B2

公开(公告)日：2018-09-11

申请号：US15154243

申请日：2016-05-13

Applicant: Yeon Chang ,  Sang Won Kim

Inventor： Yeon Chang

IPC: F23D14/12 ,  B01J7/00 ,  C01B3/02 ,  F23G5/027 ,  F23G7/12 ,  C01B3/34 ,  C10J3/20

CPC classification number: C01B3/02 ,  B01J6/008 ,  B01J19/24 ,  B01J19/2415 ,  B01J2219/00063 ,  B01J2219/00155 ,  B01J2219/00157 ,  C01B3/34 ,  C01B2203/0216 ,  C01B2203/0222 ,  C10J3/20 ,  C10J2200/152 ,  C10J2300/093 ,  C10J2300/0946 ,  C10J2300/0959 ,  C10J2300/0966 ,  C10J2300/0996 ,  C10J2300/1223 ,  C10J2300/1621 ,  C10J2300/1693 ,  C10J2300/1823 ,  F23C2201/101 ,  F23C2900/03005 ,  F23C2900/99011 ,  F23G5/0276 ,  F23G7/12 ,  F23G2201/303 ,  F23G2201/40 ,  F23G2202/106 ,  F23G2204/103 ,  F23G2207/30 ,  F23G2209/18 ,  F23G2209/20 ,  F23G2900/00001 ,  Y02E20/16 ,  Y02E20/18

Abstract: The present disclosure provides a burner for a reduction reactor, the reduction reactor has a reaction space formed therein, wherein each burner has a fuel feeding hole and multiple oxygen feeding holes formed therein, wherein each burner has an elongate combustion space formed at one end of a head portion thereof, the combustion space fluid-communicating with the reaction space of the reactor, wherein the elongate combustion space has a length such that oxygen supplied from the oxygen feeding holes thereto is completely consumed via oxidation or combustion with fuels supplied from the fuel feeding hole thereto only in the elongate combustion space upon igniting the burner.