Method for reducing the concentration of sulfur compounds in a system
for calcining fine grained materials
    1.
    发明授权
    Method for reducing the concentration of sulfur compounds in a system for calcining fine grained materials 失效
    降低煅烧细粒料的系统中硫化合物浓度的方法

    公开(公告)号:US4469664A

    公开(公告)日:1984-09-04

    申请号:US484980

    申请日:1983-04-04

    摘要: A method and apparatus for reducing the sulfur content and/or the SO.sub.2 emission in a system for calcining fine grained materials such as in the manufacture of cement utilizing a pre-calcining and a final calcining stage. The sulfur content of a process gas or of a material stream is determined and then is mixed with appropriate amounts of a dust or a raw meal in a reaction zone, the dust or raw meal containing sulfur bonding substances such as alkaline earth carbonates. The exhaust gas from which the sulfur compounds are removed by the sulfur bonding is separated from the sulfur containing solids and the exhaust gas and solids are removed from the calcining system.

    摘要翻译: 一种用于在用于煅烧细粒材料的系统中降低硫含量和/或SO 2排放的方法和装置,例如在使用预煅烧和最终煅烧阶段制造水泥时。 确定工艺气体或材料流的硫含量,然后在反应区域中混合适量的粉尘或生料,含有硫结合物质如碱土金属碳酸盐的粉末或生料。 通过硫键除去硫化合物的废气与含硫固体分离,排气和固体从煅烧系统中除去。

    Method and apparatus for the thermal treatment of moist, granular
materials
    2.
    发明授权
    Method and apparatus for the thermal treatment of moist, granular materials 失效
    用于热处理潮湿颗粒材料的方法和设备

    公开(公告)号:US4119396A

    公开(公告)日:1978-10-10

    申请号:US764446

    申请日:1977-01-31

    CPC分类号: F28C3/12 F27B7/2033

    摘要: Method and apparatus for the thermal treatment of moist, granular materials utilizing at least two superposed cyclone separators, with a relatively long gas conduit connecting the lower cyclone separator to the upper one. Charging means are provided in the conduit for introducing material to be treated near the lower cyclone separator, and a venturi-type constriction is provided in the conduit below the charging means, the constriction having its lower end projecting into the lower cyclone separator and serving to break up lumps of material which might otherwise be deposited in the cyclone separator and transfer the particulate material to the upper cyclone separator.

    摘要翻译: 使用至少两个重叠的旋风分离器热处理潮湿的颗粒材料的方法和装置,具有将下部旋风分离器连接到上部旋风分离器的较长的气体导管。 在导管中设置充电装置,用于引导下部旋风分离器附近的待处理材料,并且在充气装置下方的导管中设置文丘里型收缩部,收缩部的下端突出到下部旋风分离器中, 分解可能会沉积在旋风分离器中的材料块,并将颗粒材料转移到上旋风分离器。

    Apparatus for thermal treatment of moist raw material
    3.
    发明授权
    Apparatus for thermal treatment of moist raw material 失效
    潮湿原料热处理设备

    公开(公告)号:US3998583A

    公开(公告)日:1976-12-21

    申请号:US606194

    申请日:1975-08-20

    CPC分类号: F26B17/10 F26B21/02 F26B3/10

    摘要: Method and apparatus for the thermal treatment of moist raw pulverulent material, particularly slurries of raw cement material, wherein a plurality of gas and material separators are connected in series, the material to be treated is introduced between the last separator and the next-to-the-last separator and penetration of infiltrated air into the gas stream is prevented by a blower in advance of the zone of introduction of the raw material.The blower prevents a large pressure differential at the point of material supply and at the same time accommodates maintenance of a high vacuum and rate of flow of gas for the transporting of the material. The gas conduit leading to the last separator has an elongated riser so that the moist material introduced into the gas stream is maintained in contact with the hot gases for a long period to effect efficient pre-drying of the material.

    摘要翻译: 用于热处理潮湿的原料粉末材料,特别是原料水泥材料的浆料的方法和装置,其中多个气体和材料分离器串联连接,待处理材料被引入最后一个分离器和下一个分离器之间, 渗透空气在气流中的最后分离器和渗透通过鼓风机在原料引入区域之前被防止。

    Method and apparatus for the production of cement clinker low in alkali
from alkali-containing raw material
    4.
    发明授权
    Method and apparatus for the production of cement clinker low in alkali from alkali-containing raw material 失效
    从含碱原料生产低碱水泥熟料的方法和装置

    公开(公告)号:US4211573A

    公开(公告)日:1980-07-08

    申请号:US888757

    申请日:1978-03-21

    申请人: Andris Abelitis

    发明人: Andris Abelitis

    CPC分类号: C04B7/60 C04B7/434 F27B7/2041

    摘要: A method for the production of low alkali-cement clinker from alkali-containing raw material comprising a preheating step, a deacidification step and a sintering step utilizes a portion of the alkali-containing exhaust gases from the sintering step which are mixed with deacidified combustion gases from the deacidification step and reintroduced into the system in contact with the raw material to preheat and precalcity the raw material in a plurality of cyclones.

    摘要翻译: 一种从含碱原料生产低碱水泥熟料的方法,包括预热步骤,脱酸步骤和烧结步骤,使用来自烧结步骤的一部分含碱废气与脱酸燃烧气体混合 从脱酸步骤重新引入到与原料接触的系统中,以预热和预煅烧多种旋风分离器中的原料。

    Apparatus for the calcination of fine grained material
    5.
    发明授权
    Apparatus for the calcination of fine grained material 失效
    用于煅烧细粒材料的装置

    公开(公告)号:US4530661A

    公开(公告)日:1985-07-23

    申请号:US650658

    申请日:1984-09-14

    CPC分类号: C04B7/434 F27B7/205

    摘要: An apparatus for the calcination of fine grained material, particularly material used to produce cement clinker employing at least two separate, essentially parallel preheater lines, one of which is treated with exhaust gases from a clinker-forming zone and the other is equipped with a calcination zone which itself is fed by hot combustion air from the clinker cooler. In the area of the preheater line which is attached to the exhaust gas conduit of the clinker-forming zone, a divider device is arranged for dividing the stream of material. A first conduit directs a portion of the material into the exhaust gas conduit of the clinker-forming zone and a second conduit directs material into the calcination zone. The calcination zone is in the form of a vertical reaction duct having a downwardly bent pipe at its upper end. There is also provided a conduit which connects the vertical reaction duct with the exhaust means for hot gases in the clinker-forming zone.

    摘要翻译: 一种用于煅烧细粒材料的装置,特别是用于生产水泥熟料的材料,该材料采用至少两个分离的,基本上平行的预热管线,其中一个预热器管线由来自熟料形成区域的废气处理,另一个装备有煅烧 其本身由来自熟料冷却器的热燃烧空气供给。 在与熟料形成区域的废气导管连接的预热器管线的区域中,布置有用于分割料料流的分隔装置。 第一导管将一部分材料引导到熟料形成区的排气管道中,而第二导管将材料引导到煅烧区中。 煅烧区为其上端具有向下弯曲管的垂直反应管道的形式。 还提供了一种导管,其将垂直反应管道与用于熟料形成区域中的热气体的排气装置连接。

    Method for calcining fine-grained material, particularly for the
manufacture of cement clinker
    6.
    发明授权
    Method for calcining fine-grained material, particularly for the manufacture of cement clinker 失效
    煅烧细粒材料的方法,特别是用于制造水泥熟料的方法

    公开(公告)号:US4349387A

    公开(公告)日:1982-09-14

    申请号:US254858

    申请日:1981-04-16

    申请人: Andris Abelitis

    发明人: Andris Abelitis

    CPC分类号: F27B7/2033 C04B7/42 C04B7/432

    摘要: A method for burning fine-grained material particularly for the manufacture of cement clinker wherein a stream of the raw cement meal is sequentially treated at progressively increasing temperatures in a preheating stage, a pre-calcining stage, a calcining stage, and a sintering stage. The improvements involve introducing one or more deacidified raw meal fractions into the stream at one of a variety of possible locations so that recarbonation does not occur.

    摘要翻译: 一种用于燃烧细颗粒材料的方法,特别是用于制造水泥熟料的方法,其中在预热阶段,预煅烧阶段,煅烧阶段和烧结阶段中,逐渐升高的温度依次处理生水泥粉碎物料流。 这些改进涉及在多种可能的位置之一中将一种或多种脱酸的生料组分引入流中,从而不会发生再碳酸化。

    Method and apparatus for calcining lime
    7.
    发明授权
    Method and apparatus for calcining lime 失效
    煅烧石灰的方法和设备

    公开(公告)号:US4483831A

    公开(公告)日:1984-11-20

    申请号:US402315

    申请日:1982-07-27

    CPC分类号: F27B15/006 C04B2/10

    摘要: A method and apparatus for calcining lime, dolomite or similar materials in which the raw material to be calcined is preheated in a preheating zone by exhaust gases from a calcining zone, cooled by means of combustion air in a cooling zone, the combustion air passing from said cooling zone into said calcining zone and then into the preheating zone. A specific improvement of the invention resides in adding fuel in the calcining zone at a plurality of spaced locations along the calcining zone in the direction of flow of the combustion air therethrough.

    摘要翻译: 一种用于煅烧石灰,白云石或类似材料的方法和装置,其中待煅烧原料在预热区域由来自煅烧区的废气预热,通过在冷却区中的燃烧空气冷却,燃烧空气从 所述冷却区进入所述煅烧区,然后进入预热区。 本发明的具体改进在于在燃烧空气通过其中的沿着煅烧区的多个间隔位置处在燃烧空气的流动方向上添加燃料。

    Apparatus for the production of cement clinker low in alkali from
alkali-containing raw material
    8.
    发明授权
    Apparatus for the production of cement clinker low in alkali from alkali-containing raw material 失效
    用于从含碱原料生产低碱水泥熟料的设备

    公开(公告)号:US4370127A

    公开(公告)日:1983-01-25

    申请号:US237973

    申请日:1981-02-25

    申请人: Andris Abelitis

    发明人: Andris Abelitis

    CPC分类号: C04B7/60 C04B7/434 F27B7/2041

    摘要: A method for the production of low alkali-cement clinker from alkali-containing raw material comprising a preheating step, a deacidification step and a sintering step utilizes a portion of the alkali-containing exhaust gases from the sintering step which are mixed with deacidified combustion gases from the deacidification step and reintroduced into the system in contact with the raw material to preheat and precalcity the raw material in a plurality of cyclones.

    摘要翻译: 一种从含碱原料生产低碱水泥熟料的方法,包括预热步骤,脱酸步骤和烧结步骤,使用来自烧结步骤的一部分含碱废气与脱酸燃烧气体混合 从脱酸步骤重新引入到与原料接触的系统中,以预热和预煅烧多种旋风分离器中的原料。

    Method and device for the calcination of finely grained to dust-form
material, particularly of comminuted raw material to be used in the
manufacture of cement
    10.
    发明授权
    Method and device for the calcination of finely grained to dust-form material, particularly of comminuted raw material to be used in the manufacture of cement 失效
    用于煅烧细粉碎成型材料的方法和装置,特别是用于制造水泥的粉碎原料

    公开(公告)号:US4470849A

    公开(公告)日:1984-09-11

    申请号:US508500

    申请日:1983-06-27

    IPC分类号: C04B7/44 C04B7/43 F27B7/20

    CPC分类号: C04B7/434 F27B7/2058

    摘要: A method and mechanism for heat treating a pulverulent comminuted raw material in the process of making cement including preheating the material, passing the material through a first reaction zone, supplying a first fuel supply to the first zone for supplying thermal energy for carrying out the calcination reaction, separating the material from the hot gases received from the first reaction zone and delivering the material to a second reaction zone to which is supplied a second fuel supply for supplying thermal energy for the calcination reaction in the second zone and separating the material from the hot gases from the second zone and delivering the material to a sintering kiln and then passing it to a cooler with the air from the cooler supplied to support combustion in the first zone, and with the arrangement preferably arranged in two parallel flows with each flow path containing the preheater, and the reaction zones and separators with the material flows combining just as they enter the sintering zone.

    摘要翻译: 一种用于在制造水泥的过程中热处理粉状粉碎的原料的方法和机构,包括预热材料,使材料通过第一反应区,向第一区供应第一燃料供应以提供用于进行煅烧的热能 将材料与从第一反应区域接收的热气体分离并将材料输送到第二反应区域,向第二反应区域供应第二燃料供应源,用于为第二区域中的煅烧反应提供热能,并将材料与 来自第二区域的热气体并将材料输送到烧结窑中,然后将其传送到冷却器,其中来自供应的冷却器的空气用于支撑第一区域中的燃烧,并且优选地将该装置布置成两个平行的流,每个流动路径 含有预热器,反应区和分离器与材料流合并就好 烧结区。