Method and apparatus for incinerating waste in a cement kiln plant
    1.
    发明授权
    Method and apparatus for incinerating waste in a cement kiln plant 失效
    在水泥窑厂焚烧废物的方法和设备

    公开(公告)号:US5349910A

    公开(公告)日:1994-09-27

    申请号:US101932

    申请日:1993-08-04

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    IPC分类号: C04B7/43 F23G5/08 F23G5/02

    摘要: In a generally known cement kiln plant which incorporates a preheater (1), a calciner (2) having a separation cyclone (3), a rotary kiln (4) and a clinker cooler (5), a decomposition chamber (10) is additionally installed for incineration of waste. Waste is introduced into the chamber at a location (12) and decomposed in the chamber by the heat from calcined raw meal which is conveyed to the chamber from the separation cyclone (3) of the calciner via a splitting gate (13) and a pipeline (14). Gaseous products are conveyed to the calciner (2) and burned there, whereas noncombustible by-products are discharged via an outlet (15) of the chamber (10). By utilizing the heat from preheated or calcined raw meal instead of, for example, hot exhaust gases to incinerate waste, any disturbance of the draught conditions of the cement kiln plant can be avoided, and the overall control of the calcining process is improved.

    摘要翻译: 在具有预热器(1),具有分离旋风分离器(3),回转窑(4)和熟料冷却器(5)的煅烧炉(2)的通常已知的水泥窑炉中,分解室(10)另外 安装用于焚烧废物。 废物在一个位置(12)被引入室中,并通过来自煅烧生料的热量在室中分解,该煅烧生料从经煅烧炉的分离旋风分离器(3)经由分流闸(13)和管道 (14)。 气体产物被输送到煅烧炉(2)并在那里燃烧,而不燃副产物经由室(10)的出口(15)排出。 通过利用来自预热或煅烧生料的热而不是例如热废气来焚烧废物,可以避免对水泥窑设备的牵引条件的任何干扰,并且改善了煅烧过程的总体控制。

    Reduction of nitrogen oxide (NO.sub.x) emission from a kiln plant
    2.
    发明授权
    Reduction of nitrogen oxide (NO.sub.x) emission from a kiln plant 失效
    从窑厂减少氮氧化物(NOx)排放

    公开(公告)号:US5026275A

    公开(公告)日:1991-06-25

    申请号:US504536

    申请日:1990-04-04

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    IPC分类号: B01D53/56 C04B7/60

    CPC分类号: B01D53/56 C04B7/365

    摘要: In a kiln plant for burning mineral raw materials, e.g. cement raw materials, by means of nitrogen containing, solid fuel, e.g. coal, and which plant comprises a kiln (1), a material cooler (2) coupled after the kiln and a multistring, multistage preheater (18-27 and 18'-27') mounted before the kiln, the one string, the kiln string (18-27), being in direct connection with the kiln riser pipe (8) and the second string, the calcining string (18'-27'), being connected to a separate calcinator (4) to which combustion air is supplied in the form of spent cooler air through an inlet (7), an NO.sub.x -reducing zone is established in the kiln riser pipe (8) and a part of the kiln string from an inlet (13) for nitrogen containing solid fuel of a fuel duct (10) and an inlet (12) of a branch-off (14) for the supply of spent cooler air. The length of the NO.sub.x -reducing zone, the combustion in the zone of the supplied carbon containing fuel for reaction between nitrogen atoms (N) and the nitrogen oxide (NO) formed in the kiln for forming harmless nitrogen (N.sub.2) and the separation of non-combusted fuel with partially calcined raw materials from the kiln smoke gases in the cyclone stage (18), and the further treatment of said products in the calciner (4) where the combustion of the fuel supplied from the kiln riser pipe and having a reduced nitrogen content thus causing a reduction of the NO.sub.x -emission from the calciner string (18'-27'), ensure a high degree of reduction in the total NO.sub.x -emission from the plant.

    Method and apparatus for producing cement clinker
    3.
    发明授权
    Method and apparatus for producing cement clinker 失效
    生产水泥熟料的方法和装置

    公开(公告)号:US4997363A

    公开(公告)日:1991-03-05

    申请号:US448745

    申请日:1989-12-11

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    IPC分类号: C04B7/44 F27B1/00 F27B15/00

    CPC分类号: F27B15/003

    摘要: A cement clinker-producing plant has a suspension preheater (1,2,3), a calciner (4) united with a stationary reactor (6) and coolers (7,8). Air is blown up through the cooler (7) into the reactor (6) where a spouted bed, in which the clinker is burnt, is produced. The air flow is controlled so that only clinker particles which have grown to a certain size can fall through the air flow into the cooler (7).

    METHOD AND PLANT FOR DRYING AND COMMINUTION OF MOIST, MINERAL, RAW MATERIALS
    4.
    发明申请
    METHOD AND PLANT FOR DRYING AND COMMINUTION OF MOIST, MINERAL, RAW MATERIALS 有权
    水分,矿物,原料的干燥和制备方法和设备

    公开(公告)号:US20090166452A1

    公开(公告)日:2009-07-02

    申请号:US12279187

    申请日:2006-12-28

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    IPC分类号: C04B7/40 B02C23/32 B02C23/24

    摘要: Described is a method as well as a plant for drying and comminution of moist, mineral raw materials, such as chalk, marl and clay, by which method the raw materials are dried and comminuted subject to simultaneous supply of hot gases in a drier crusher (8) from which the material is subsequently directed in suspended form to a separator (11) in which it is separated into a coarse fraction which is returned to the drier crusher (8) for further drying and comminution and into a fine fraction which is directed to the next stage of the process and where any hard material components such as flint, sand and marble are subjected to grinding in a separate grinding unit (16). The method and plant is peculiar in that a part quantity of the coarse fraction from the separator (11) is proportionately fed to the separate grinding unit (16) for the grinding of hard material components. Hence, it will be possible to substantially reduce the specific energy consumption and the CO2 emission from the kiln system due to the elimination of need prior to drying and comminution in the drier crusher to suspend the raw materials in water which must subsequently be removed. This is ascribable to the fact that the hard material components by the method according to this invention will be drained away from the circuit between the drier crusher and the separator A further advantage of the method according to this invention is the significant reduction achieved in the wear rate of the drier crusher and its energy consumption. Furthermore, it will be possible to produce a raw meal with excellent burning characteristics due to the reduction in the content of coarse silica particles in the raw meal, which in turn will reduce the NOx emission from the kiln.

    摘要翻译: 描述了一种方法以及用于干燥和粉碎潮湿的矿物原料如白垩,泥土和粘土的方法,通过该方法将原料干燥并粉碎,同时在干燥破碎机中供应热气体( 8),其中材料随后被以悬浮形式引导到分离器(11),在分离器(11)中将其分离成粗馏分,该粗馏分返回到干燥破碎机(8)进一步干燥和粉碎并进入定向的细小部分 到所述方法的下一阶段,并且其中任何硬质材料组分如燧石,砂和大理石在单独的研磨单元(16)中进行研磨。 该方法和设备是特别的,其中来自分离器(11)的粗部分的一部分成比例地供给到用于研磨硬质材料成分的分离研磨单元(16)。 因此,由于在干燥破碎机中干燥和粉碎之前不需要,可以大大降低窑系统的比能量消耗和二氧化碳排放量,以将原料悬浮在水中,随后将其去除。 这是由于根据本发明的方法的硬质材料组分将被排出干燥机与分离器之间的回路的事实。根据本发明的方法的另一个优点是在磨损中显着降低 干粉机的能耗及其能耗。 此外,由于生料中粗二氧化硅颗粒的含量降低,可以生产具有优异燃烧特性的生料,这又将减少窑的NOx排放。

    Method and apparatus for burning away organic components in raw phosphate
    5.
    发明授权
    Method and apparatus for burning away organic components in raw phosphate 失效
    在原料磷酸盐中燃烧有机成分的方法和设备

    公开(公告)号:US4605370A

    公开(公告)日:1986-08-12

    申请号:US652329

    申请日:1984-09-19

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    IPC分类号: C01B25/01 F27B15/00

    CPC分类号: C01B25/01 Y02P20/129

    摘要: In a method and an apparatus for burning away organic components in raw phosphate, the burning taking place in two stages carried out in two reactors each having its separate air supply. A first suspension transport reactor (3) and a second reactor (5) are coupled in series via a separator (4), to which reactors combustion air (9), (11), preheated raw material (14), (15) and, if desired, fuel (8) are supplied separately. The reaction temperature in both reactors preferably lies in the range 700.degree.-850.degree. C. The majority of the organic components are burnt in the first stage which operates with a suspension having a density of 1-50 kg/m.sup.3. The remaining part of the organic components is burnt in the second stage which operates with a suspension density of 75-1600 kg/m.sup.3, a material retention time which is at least 4, preferably 10 times as long as the material retention time in the first stage, an air supply which is less than half the air supply for the first stage, and an oxygen percentage which is at least twice that of the first stage.

    摘要翻译: 在用于燃烧原料磷酸盐中的有机组分的方法和设备中,在两个反应器中进行两个阶段的燃烧,每个反应器具有单独的空气供应。 第一悬浮输送反应器(3)和第二反应器(5)经由分离器(4)串联连接,反应器燃烧空气(9),(11),预热的原料(14),(15)和 如果需要,单独供应燃料(8)。 两个反应器中的反应温度优选在700〜-850℃的范围内。大部分有机成分在第一阶段燃烧,其中密度为1-50kg / m3的悬浮液。 剩余部分的有机组分在第二阶段燃烧,其运行时的悬浮密度为75-1600kg / m 3,材料保留时间为第一次的材料保留时间的至少4倍,优选10倍 阶段,空气供应量小于第一阶段供气的一半,氧气百分比至少是第一阶段的两倍。

    Method of removing cadmium from raw phosphate
    6.
    发明授权
    Method of removing cadmium from raw phosphate 失效
    从原料磷酸盐中去除镉的方法

    公开(公告)号:US4592900A

    公开(公告)日:1986-06-03

    申请号:US709556

    申请日:1985-03-08

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    IPC分类号: C01B25/01 C01B25/26

    CPC分类号: C01B25/01

    摘要: A method of removing cadmium from raw phosphate material in an apparatus comprising a preheater section (2,13) a reactor section (3,4,5), a cooler section (7) and an exit gas cleaning section having a cadmium condenser (6,20,21), where the reactors (3,5) work in series and are formed as suspension reactors, or alternatively as a suspension reactor and a fluid-bed reactor, and where the treated raw phosphate in the first reactor having a short material retention time is suspended in a gas/fuel mixture and through a flash-process heated to a reaction temperature of 750.degree.-1050.degree. C. to be further heated subsequently in a reducing or neutral atmosphere in the second reactor which has a strongly reduced gas supply as compared with the first reactor and has at least three times as long a material retention time, by which the cadmium content is substantially expelled from the raw phosphate and carried away with the exit gas from the second reactor, while the cleaned phosphate is passed to the cooler section of the plant for further treatment.

    摘要翻译: 在包括预热器部分(2,13),反应器部分(3,4,5),冷却器部分(7)和具有镉冷凝器(6)的出口气体清洁部分的装置中从原料磷酸盐材料中除去镉的方法 ,20,21),其中反应器(3,5)串联工作并形成为悬浮反应器,或者作为悬浮反应器和流化床反应器形成,并且其中第一反应器中经处理的原料磷酸盐具有短 材料停留时间悬浮在气体/燃料混合物中,并通过加热至750〜-1050℃的反应温度的闪蒸工艺,随后在还原或中性气氛中进一步加热,该反应器具有强烈降低 气体供应与第一反应器相比具有至少三倍的材料保留时间,通过该气体镉含量基本上从原料磷酸盐中排出并与来自第二反应器的出口气体一起携带,而清洁的磷酸盐是 传递给 植物的较冷段用于进一步处理。

    Method and apparatus for calcining raw phosphate material
    7.
    发明授权
    Method and apparatus for calcining raw phosphate material 失效
    煅烧原料磷酸盐材料的方法和装置

    公开(公告)号:US4555388A

    公开(公告)日:1985-11-26

    申请号:US558117

    申请日:1983-12-05

    申请人: Soren Hundebol

    发明人: Soren Hundebol

    CPC分类号: C01B25/01 Y10S423/16

    摘要: Raw phosphate material is calcined to remove pollutants, such as organic compounds and sulphides, by heat treatment in two suspension calciners (3,5) arranged in series. Fuel supplied at burners (8) is burnt in the calciners with air, supplied in parallel through pipes (9) from a cooler (7) for the treated material. The material is preheated in a preheater, for instance a pipe (13) and cyclone (2) by exit gases from the calciner before entering the calciners and, after leaving the calciners, is separated from the gas streams in separators (4,6).

    摘要翻译: 通过在两个串联布置的悬浮煅烧器(3,5)中进行热处理,煅烧原料磷酸盐材料以除去有机化合物和硫化物等污染物。 在燃烧器(8)处供应的燃料通过管道(9)从用于经处理的材料的冷却器(7)平行地供给到具有空气的煅烧器中。 材料在进入煅烧器之前通过来自煅烧炉的出口气体在预热器例如管道(13)和旋风分离器(2)中预热,并且在离开煅烧器之后,与分离器(4,6)中的气流分离, 。