Multi-stage combustion method for inhibiting formation of nitrogen oxides
    5.
    发明授权
    Multi-stage combustion method for inhibiting formation of nitrogen oxides 失效
    用于抑制氮氧化物形成的多级燃烧方法

    公开(公告)号:US4395223A

    公开(公告)日:1983-07-26

    申请号:US221825

    申请日:1980-12-31

    IPC分类号: F23C6/04 F23M3/04

    CPC分类号: F23C6/047 F23C2201/30

    摘要: A method comprising injecting a primary fuel and air into a furnace to burn the fuel and form a first-stage combustion zone, the fuel being diluted with surrounding combustion gas and the air being supplied at a rate in excess of the stoichiometric rate required for the combustion of the fuel, and injecting a secondary fuel into the furnace around or downstream of the first-stage zone at a range approximately equal to the stoichiometric rate required for the consumption of the excess oxygen resulting from the combustion in the first-stage zone the fuel being diluted with surrounding combustion gas and to form a second-stage combustion zone around or downstream of the first-stage zone.

    摘要翻译: 一种方法,包括将主燃料和空气喷入炉中以燃烧燃料并形成第一级燃烧区,燃料用周围的燃烧气体稀释,空气以超过所需燃料的所需化学计量比率 燃料的燃烧,以及在第一级区域周围或下游将大量等于消耗由第一级区域的燃烧产生的过量氧气所需的化学计量比率的范围内的第二燃料喷射到炉中。 燃料被周围的燃烧气体稀释并在第一级区域周围或下游形成第二级燃烧区域。

    Apparatus for incinerating waste gases
    6.
    发明授权
    Apparatus for incinerating waste gases 失效
    焚烧废气的设备

    公开(公告)号:US4065247A

    公开(公告)日:1977-12-27

    申请号:US743251

    申请日:1976-11-19

    IPC分类号: F23G7/08 F23D13/20

    CPC分类号: F23G7/08 F23G7/085

    摘要: An apparatus for incinerating a waste gas comprises a combustion furnace main body having a peripheral wall and a hearth and a plurality of flare burners disposed on the hearth. Each of the flare burners including a burner main body having a peripheral wall and a bottom wall, at least one of the walls of the burner main body being formed with air intakes, an inwardly projecting flange provided on an upper portion of the peripheral wall of the burner main body, gas-air mixture tubes downwardly extending through the flange and arranged at a given spacing, a waste gas main pipe disposed under the burner main body, waste gas branch pipes extending upward from the waste gas main pipe, and gas nozzles mounted on the upper ends of the waste gas branch pipes respectively and positioned at the lower ends of the gas-air mixture tubes. The waste gas forced out from the nozzles ascends the interior of the mixture tubes along with the surrounding air and the gas-air mixture jets out from the tubes. When the mixture is ignited and burned, the swirling air currents produced above the flange support the combustion.

    摘要翻译: 用于焚烧废气的装置包括具有周壁和炉膛的燃烧炉主体和设置在炉膛上的多个火炬燃烧器。 每个火炬燃烧器包括具有周壁和底壁的燃烧器主体,燃烧器主体的至少一个壁形成有进气口,向内突出的凸缘,其设置在周壁的上壁部分 燃烧器主体,向下延伸穿过凸缘并以给定间隔布置的气体 - 空气混合物管,设置在燃烧器主体下方的废气主管,从废气主管向上延伸的废气支管,以及气体喷嘴 分别安装在废气分支管的上端并且位于气 - 气混合管的下端。 从喷嘴排出的废气与周围的空气一起上升到混合管的内部,气体 - 空气混合物从管中喷出。 当混合物被点燃和燃烧时,在法兰上方产生的旋流气流支持燃烧。

    Multi-stage combustion method for inhibiting formation of nitrogen oxides
    7.
    发明授权
    Multi-stage combustion method for inhibiting formation of nitrogen oxides 失效
    用于抑制氮氧化物形成的多级燃烧方法

    公开(公告)号:US4496306A

    公开(公告)日:1985-01-29

    申请号:US601105

    申请日:1984-04-18

    IPC分类号: F23C6/04 F23M3/02

    CPC分类号: F23C6/047 F23C2201/30

    摘要: A method comprising injecting a primary fuel and air into a furnace to burn the fuel and form a first-stage combustion zone, the air being supplied at a rate in excess of the stoichiometric rate required for the combustion of the fuel, and injecting a secondary fuel into the furnace around or downstream of the first-stage zone at a rate approximately equal to the stoichiometric rate required for the consumption of the excess oxygen resulting from the combustion in the first-stage zone the fuel being diluted with the surrounding combustion gas and to form a second-stage combustion zone around or downstream of the first-stage zone.

    摘要翻译: 一种方法,包括将主燃料和空气注入炉中以燃烧燃料并形成第一级燃烧区,空气以超过燃料燃烧所需的化学计量比率的速率供给,并且注入次级 在大约等于消耗由第一阶段区域燃烧产生的过量氧气所需的化学计量比率的情况下,在第一阶段区域周围或下游的燃料进入炉内,燃料被周围的燃烧气体稀释, 以在第一级区域周围或下游形成第二级燃烧区域。

    System and method for burning liquefied gases
    8.
    发明授权
    System and method for burning liquefied gases 失效
    燃烧液化气的系统和方法

    公开(公告)号:US4424017A

    公开(公告)日:1984-01-03

    申请号:US234591

    申请日:1981-02-13

    IPC分类号: F23D11/24 F23K5/18 F23D11/38

    摘要: A system for burning a liquefied gas comprises a burner gun for spraying the liquefied gas into a combustion space, a pump for feeding the gas under pressure, pipe means connecting the burner gun with the pump, and a flow regulating valve provided in the pipe means, wherein the portion of the pipe means downstream from the valve has its inner diameter so determined in relation with the flow rate of the gas that the state of the gas flow through said portion falls within fog flow zone or bubble flow zone on Baker's two-phase flow diagram. In the system of the invention, unstable combustion of the liquefied gas due to vapor lock in the pipe means can be prevented even when the gas supply pressure is below the vapor pressure of the gas. Besides, the calorific value obtained with the system is variable over a wider range than with a conventional system. Thus the system has a remarkable industrial value.

    摘要翻译: 用于燃烧液化气体的系统包括用于将液化气体喷射到燃烧空间中的燃烧器枪,用于在压力下供给气体的泵,将燃烧器枪与泵连接的管道装置以及设置在管道装置中的流量调节阀 其特征在于,所述管道装置的下游部分的内部尺寸与所述气体的流速相关地确定,所述气体的流动状态通过所述部分的气体流过所述部件的雾流区域或气泡流动区域, 相流图。 在本发明的系统中,即使当气体供给压力低于气体的蒸汽压力时,也可以防止由于管道装置中的气体锁定而导致的液化气体的不稳定燃烧。 此外,与传统系统相比,用系统获得的发热量在更宽的范围内是可变的。 因此,该体系具有显着的工业价值。

    Method of inhibiting formation of unburned substances in refuse
incinerator, and refuse incinerator
    9.
    发明授权
    Method of inhibiting formation of unburned substances in refuse incinerator, and refuse incinerator 失效
    在垃圾焚烧炉中抑制未燃烧物质形成的方法,以及垃圾焚烧炉

    公开(公告)号:US5313895A

    公开(公告)日:1994-05-24

    申请号:US27574

    申请日:1993-03-05

    IPC分类号: F23G5/14 F23L7/00 F23G5/00

    摘要: A method of inhibiting formation of unburned substances in incinerating refuse is practiced with use of an incinerator wherein a peripheral wall defining a combustion chamber is provided with a nozzle for injecting at least one mixing fluid selected from the group consisting of air, water, water vapor, inert gas and combustion exhaust gas into the combustion chamber and producing a swirling stream of the fluid within the chamber. When the refuse is incinerated, the mixing fluid is injected into the combustion chamber from the nozzle, whereby the flame and unburned substances produced within the chamber are efficiently mixed with an excessive portion of air supplied to the chamber and remaining therein to ensure promoted complete combustion.

    摘要翻译: 使用焚烧炉来实施抑制焚烧垃圾中未燃烧物质形成的方法,其中限定燃烧室的周壁设置有用于喷射至少一种选自空气,水,水蒸汽的混合流体的喷嘴 惰性气体和燃烧废气进入燃烧室,并产生室内流体的旋流。 当垃圾被焚化时,将混合流体从喷嘴注入燃烧室,由此在室内产生的火焰和未燃烧物质与供给到室的空气的过量部分有效地混合并保留在其中以确保促进完全燃烧 。

    Method of decomposing organochlorine compound
    10.
    发明授权
    Method of decomposing organochlorine compound 失效
    分解有机氯化合物的方法

    公开(公告)号:US06483006B1

    公开(公告)日:2002-11-19

    申请号:US09673195

    申请日:2000-10-12

    IPC分类号: A62D300

    摘要: The present invention relates to a method of decomposing organochlorine compounds such as dioxins reductively or catalytically. The organochlorine compounds such as dioxins and o-chloroanisole are decomposed in an aqueous alkali solution in the presence of a reducing agent or a catalyst. The alkali which can be used is at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate and aqueous ammonia. The reducing agent which can be used is at least one selected from the group consisting of sodium hydrosulfite, ascorbic acid, hydrazine, hydrazine hydrate, neutral hydrazine sulfate, hydrazine carbonate, sodium thiosulfate, sodium sulfite, potassium sulfite, hydroquinone, 4-methylaminophenol sulfate and Rongalite. The catalyst which can be used is at least one selected from the group consisting of activated carbon and titanium oxide.

    摘要翻译: 本发明涉及还原或催化分解有机氯化合物如二恶英的方法。 有机氯化合物如二恶英和邻氯苯甲醚在还原剂或催化剂存在下在碱性水溶液中分解。 可以使用的碱是选自氢氧化钠,氢氧化钾,碳酸钠,碳酸钾和氨水中的至少一种。 可以使用的还原剂是选自连二亚硫酸钠,抗坏血酸,肼,水合肼,中性硫酸肼,碳酸肼,硫代硫酸钠,亚硫酸钠,亚硫酸钾,氢醌,4-甲基氨基苯酚硫酸盐 和荣莱特。 可以使用的催化剂是选自活性炭和氧化钛中的至少一种。