公开(公告)号：US20100252967A1

公开(公告)日：2010-10-07

申请号：US12673203

申请日：2007-09-13

Applicant: Stefano Miani ,  Bruno Rubeo

Inventor： Stefano Miani ,  Bruno Rubeo

IPC: F27B3/22 ,  C21C5/52

CPC classification number: F27B3/22 ,  C21C5/5217 ,  F23D14/22 ,  F23D14/48 ,  F23D14/78 ,  F23D17/005 ,  F23D2212/20 ,  F23D2900/00006 ,  F27B3/20 ,  F27B3/205 ,  F27B3/225 ,  F27D99/0033 ,  Y02P10/216

Abstract: The present invention relates to an injector for an arc furnace. The injector comprises a head suitable to face into the furnace and a body suitable to support the head. The head and body are manufactured separately from each other, and are fastened by means of removable connection means in order to implement said injector.

Abstract translation: 本发明涉及一种用于电弧炉的喷射器。 喷射器包括适于面向炉子的头部和适于支撑头部的主体。 头部和主体彼此分开制造，并且通过可移除的连接装置被固定以便实现所述注射器。

公开(公告)号：US20040234912A1

公开(公告)日：2004-11-25

申请号：US10443287

申请日：2003-05-21

Inventor： Hamid Sarv ,  Ronald C. Lenzer

IPC: F23C001/12 ,  F23C007/00

CPC classification number: F23D1/00 ,  F23D14/24 ,  F23D14/84 ,  F23D17/005

Abstract: A gas injector for a furnace or boiler gas-fired burner has a plurality of peripheral openings around a center opening. The peripheral openings are pitched radially away from the longitudinal axis of the gas injector and also pitched either clockwise (CW) or counter-clockwise (CCW), to impart a swirling motion to gaseous fuel exiting the injector through the openings. The gas injector with the radial plus CW or CCW pitched peripheral openings has reduced flame length and lower CO emissions and only slightly elevated levels of NOx emissions relative to a gas injector with only radially pitched openings. The gas injector is useful in furnaces having small enclosures to prevent burner flames from impinging on the opposing walls.

Abstract translation: 用于炉或锅炉燃气燃烧器的气体注入器具有围绕中心开口的多个周边开口。 周边开口径向远离气体注射器的纵向轴线，并且还顺时针（CW）或逆时针（CCW）倾斜，以通过开口向离开喷射器的气体燃料施加涡旋运动。 具有径向加CW或CCW间距外围开口的气体注射器具有减少的火焰长度和较低的CO排放，并且相对于仅具有径向倾斜的开口的气体注入器仅具有略微升高的NOx排放水平。 气体喷射器可用于具有小外壳的炉中，以防止燃烧器火焰撞击在相对的壁上。

公开(公告)号：US06216613B1

公开(公告)日：2001-04-17

申请号：US09348128

申请日：1999-07-02

Applicant: Paul Wachendorfer

Inventor： Paul Wachendorfer

IPC: F23B700

CPC classification number: F23C1/12 ,  F23D17/005

Abstract: A process for solid fossil fuel oxidation that utilizes a refractory that defines a reactor core and a combustor chamber in serial communication. The reactor core is heated by burning an air fuel mixture external to the reactor core. A non-oxidizing gas/coal mixture is introduced into the reactor core where heat energy is transferred to the non-oxidizing gas/coal mixture so that the specific heat of the mixture is substantially raised. The non-oxidizing gas/coal mixture is discharged from the reactor core into the combustor chamber at which point an oxidizing medium such as air is introduced in order to instantly oxidize the heated non-oxidizing gas/coal mixture. The non-oxidizing gas may be a flammable gas, such as methane.

Abstract translation: 固体化石燃料氧化的方法，其利用限定反应堆堆芯和串联连接的燃烧室的耐火材料。 通过在反应堆芯外部燃烧空气燃料混合物来加热反应堆堆芯。 将非氧化气体/煤混合物引入反应堆核心，其中热能被转移到非氧化性气体/煤混合物，使得混合物的比热大大升高。 非氧化性气体/煤混合物从反应堆堆芯排出到燃烧室中，此时引入诸如空气的氧化介质，以便立即氧化加热的非氧化气体/煤混合物。 非氧化气体可以是可燃气体，例如甲烷。

公开(公告)号：US5979342A

公开(公告)日：1999-11-09

申请号：US134845

申请日：1998-08-14

Applicant: Alfons Leisse ,  Michael Streffing

Inventor： Alfons Leisse ,  Michael Streffing

IPC: F23C99/00 ,  F23D1/00 ,  F23D1/02 ,  F23D17/00 ,  F23D14/46

CPC classification number: F23D17/005 ,  F23D1/00 ,  F23D1/02 ,  F23C2201/20 ,  F23C2202/10 ,  F23D2201/20

Abstract: A burner for the combustion of coal dust in which a stream of primary air and coal dust mixture is conducted through a dust conduit connected to a primary dust tube. A secondary air tube surrounds the primary dust tube, and a tertiary air tube surrounds the secondary air tube. The secondary and tertiary air tubes are connected to a helically-shaped input housing, and a conically flared section extends from each of the secondary and tertiary air tubes. An angular momentum is applied in the dust conduit divides the primary air and coal dust mixture into high-dust and low-dust partial streams, so that the high-dust partial stream flows through the primary dust tube, and the low-dust partial stream flows through the primary gas tube.

Abstract translation: 用于燃烧煤尘的燃烧器，其中一次空气和煤尘混合物流通过连接到主灰尘管的灰尘导管进行。 二次空气管围绕主尘埃管，三次空气管围绕二次空气管。 二次和三次空气管连接到螺旋状输入壳体，并且锥形扩口部分从第二和第三空气管中的每一个延伸。 在灰尘管道中施加角动量将一次空气和煤粉混合物分成高灰尘和低灰分的部分气流，使得高灰分部分流流过主要的灰尘管，并且低灰分部分流 流过主气管。

公开(公告)号：US5950547A

公开(公告)日：1999-09-14

申请号：US897939

申请日：1997-07-21

Applicant: Paul Wachendorfer

Inventor： Paul Wachendorfer

IPC: F23C1/12 ,  F23D17/00 ,  F23D1/00 ,  F23K3/02

CPC classification number: F23C1/12 ,  F23D17/005

Abstract: A coal combustor for combustion of coal in fossil burning plants, comprising a refractory including a reactor chamber, combustion chamber, and discharge chamber serially connected along a central longitudinal axis. The chambers define, respectively a reactor zone, combustion zone, and discharge zone extending through the refractory. A ceramic baffle insert is concentrically disposed within the forward end of the reactor chamber. The baffle defines at least one coal-gas passage extending longitudinally through the baffle and communicates an air-fuel mixture to the reactor zone. A reactor core tube is sealingly engaged by the baffle and in communication with the coal-gas passage. The reactor core tube extends longitudinally through a portion of the reactor zone and terminates in the combustion zone for communicating a coal-gas mixture from the coal-gas passage to the combustion zone. The air-fuel mixture is burned in the reactor zone to heat the reactor core tube and the coal-gas mixture passing through the reactor core tube by conduction, before entry into the combustion zone.

Abstract translation: 一种用于燃烧化石燃烧装置中的煤的煤燃烧器，包括耐火材料，其包括沿中心纵向轴线串联连接的反应室，燃烧室和排出室。 这些室分别定义了延伸穿过耐火材料的反应器区域，燃烧区域和排放区域。 陶瓷挡板插入件同心地设置在反应器室的前端内。 挡板限定了沿着挡板纵向延伸的至少一个煤气通道，并将空气 - 燃料混合物连通到反应器区域。 反应堆芯管与挡板密封接合并与煤气通道连通。 反应堆芯管纵向延伸穿过反应器区的一部分并终止在燃烧区中，用于将煤气混合物从煤气通道连通到燃烧区。 空气燃料混合物在反应器区域中燃烧，以在进入燃烧区域之前通过传导加热反应堆芯管和通过反应堆芯管的煤气混合物。

公开(公告)号：US4572084A

公开(公告)日：1986-02-25

申请号：US500394

申请日：1983-06-02

Applicant: Alex E. S. Green ,  Bruce A. S. Green

Inventor： Alex E. S. Green ,  Bruce A. S. Green

IPC: F23C1/12 ,  F23D17/00 ,  F23C1/10

CPC classification number: F23C1/12 ,  F23D17/005

Abstract: Various embodiments of apparatus and methods are disclosed for the conversion of steam boilers from being oil fired to coal and natural gas fired without adversely affecting the normal power density of the boilers or the emission pollution therefrom. In some cases even the resultant coal ash can be modified by injecting a powdered catalyst or phosphate slimes into the flame to produce a fertilizer ash having desirable minerals to enhance the economic value thereof.Basically all embodiments include a swirling coal-air mixture directed along a path to form a sheath and a swirling gas-air mixture internally thereof with the swirling of the latter being in the same direction and fortifying the motion of the former. A gas-air mixture, swirling or non-swirling, may be supplied outwardly of such sheath to enhance the more complete burning of the coal-air mixture.

Abstract translation: 公开了用于将蒸汽锅炉从燃油转化为煤和天然气的各种实施例，而不会不利地影响锅炉的正常功率密度或其排放污染。 在一些情况下，甚至可以通过将粉末状催化剂或磷酸盐泥浆注入到火焰中来生产具有所需矿物质的肥料灰以增加其经济价值，从而可以改变所得到的煤灰。 基本上所有的实施方案都包括沿路径引导的旋转的煤 - 空气混合物，以形成护套和内部的旋转气体 - 空气混合物，其中的涡流在相同的方向上并且增强了前者的运动。 可以在这种护套的外面提供气旋混合物，旋转或不旋转，以增强煤 - 空气混合物的更完全燃烧。

公开(公告)号：US4538530A

公开(公告)日：1985-09-03

申请号：US108584

申请日：1979-12-31

Applicant: John E. Whitman

Inventor： John E. Whitman

IPC: F23D1/00 ,  F23D17/00 ,  F23C1/02 ,  F23C1/04

CPC classification number: F23D1/00 ,  F23D17/005

Abstract: This invention is directed to the suspension firing of a comminuted combustible material and the supporting structure for such suspension firing. The combustible material is introduced to a burner head which results in the combustible material expanding in a circular pattern. Inside of this circular pattern there is an outwardly directed flame to contact the combustible material. The result is an immediate ignition of the combustible material and the complete burning of the combustible material. There is also a refractory near the burner head. After the refractory has been heated to a desired temperature the outwardly directed flame can be discontinued and the heat energy from the refractory material is sufficient to assist in the immediate firing of the combustible material. A result of this is that an auxiliary fuel such as fuel oil or natural gas is not required, after the refractory has reached the desired temperature to sustain combustion of the combustible material. Further, with the complete burning of the combustible material there is less possibility of particulate matter being introduced into the atmosphere as pollutants and also less possibility of particulate matter condensing out on boiler tubes in a furnace. Another factor of this invention is that the burner head and supporting equipment can be removed from the hot furnace and repaired outside the hot furnace or another burner head can be introduced into the hot furnace. This means that it is not necessary to cool the hot furnace before working on the burner head.

Abstract translation: 本发明涉及粉碎的可燃材料的悬浮焙烧和用于这种悬浮烧制的支撑结构。 可燃材料被引入到燃烧头中，导致可燃材料以圆形图案膨胀。 在该圆形图案的内部存在向外的火焰以接触可燃材料。 结果是可燃材料的直接点燃和可燃材料的完全燃烧。 燃烧器头附近还有耐火材料。 在将耐火材料加热到所需温度之后，向外引导的火焰可以停止，并且来自耐火材料的热能足以帮助立即燃烧可燃材料。 其结果是，在耐火材料达到所需温度以维持可燃材料的燃烧之后，不需要辅助燃料如燃料油或天然气。 此外，随着可燃材料的完全燃烧，颗粒物质作为污染物被引入大气中的可能性较小，并且在炉中的锅炉管上冷凝的颗粒物质的可能性也降低。 本发明的另一个因素是燃烧器头部和支撑设备可以从热炉中取出并在热炉外修复，或者可以将另一燃烧器头引入热炉。 这意味着在对燃烧器头进行工作之前不需要冷却热炉。

公开(公告)号：US4523530A

公开(公告)日：1985-06-18

申请号：US468317

申请日：1983-02-22

Applicant: Motofumi Kaminaka ,  Hiroyuki Takashima ,  Katsuhiko Kaburagi

Inventor： Motofumi Kaminaka ,  Hiroyuki Takashima ,  Katsuhiko Kaburagi

IPC: F23D1/02 ,  F23D17/00

CPC classification number: F23D1/02 ,  F23D17/005

Abstract: A powdery coal burner is disclosed, which comprises a burner nozzle having an opening at the end of the burner body, through which a combustion-assisting gaseous medium is injected into a combustion area, means of providing a swirling motion to said combustion-assisting gaseous medium which is injected through said burner nozzle to said combustion area in a swirled state, an injection nozzle having an opening surrounding said burner nozzle opening, through which coal is injected toward said combustion area, and a primary air outlet nozzle having an opening surrounding said opening of said injection nozzle for the powdery coal, through which a primary combustion air is forwardly injected.

Abstract translation: 公开了一种粉煤燃烧器，其包括燃烧器喷嘴，燃烧器喷嘴在燃烧器主体的端部具有一个开口，燃烧助燃气体介质通过该燃烧器喷射到燃烧区域中，对所述助燃气体提供旋转运动的装置 介质，其通过所述燃烧器喷嘴以旋转状态喷射到所述燃烧区域;喷嘴，其具有围绕所述燃烧器喷嘴开口的开口，通过所述喷嘴朝向所述燃烧区域喷射煤;以及主空气出口喷嘴， 打开用于粉煤的所述注射喷嘴，通过该喷嘴喷射初级燃烧空气。

公开(公告)号：US4087962A

公开(公告)日：1978-05-09

申请号：US708660

申请日：1976-07-26

Applicant: Donald G. Beremand ,  Lloyd I. Shure ,  Thaddeus S. Mroz

Inventor： Donald G. Beremand ,  Lloyd I. Shure ,  Thaddeus S. Mroz

IPC: F23D14/14 ,  F23D17/00 ,  F23R3/04 ,  F23R3/28 ,  F02C7/22 ,  F23D13/14

CPC classification number: F23D17/005 ,  F23D14/14 ,  F23R3/045 ,  F23R3/28

Abstract: A direct heating surface combustor is provided that utilizes a non-adiabatic flame to provide a low-emission combustion for gas turbines. A fuel-air mixture is directed through a porous wall, the other side of which serves as a combustion surface. A radiant heat sink disposed adjacent to and spaced from the combustion surface controls the combustor flame temperature in order to prevent the formation of oxides of nitrogen. A secondary air flow cools the heat sink. Additionally, up to 100% of secondary air flow is mixed with the combustion products at the direct heating surface combustor to dilute such products thereby reducing exit temperature. However, if less than 100% secondary air is mixed at the combustor, the remainder may be added to the combustion products further downstream.

Abstract translation: 提供了直接加热表面燃烧器，其利用非绝热火焰为燃气轮机提供低排放燃烧。 燃料 - 空气混合物被引导通过多孔壁，另一侧用作燃烧表面。 与燃烧表面相邻并与其隔开的辐射散热器控制燃烧器火焰温度，以防止形成氮氧化物。 二次空气流冷却散热器。 另外，高达100％的二次空气流与直接加热表面燃烧器处的燃烧产物混合，以稀释这种产物，从而减少出口温度。 然而，如果在燃烧器处混合少于100％的二次空气，则剩余部分可以进一步向下游加入到燃烧产物中。