Method for heat treating pulverous raw material calcining combustor
therefor
    71.
    发明授权
    Method for heat treating pulverous raw material calcining combustor therefor 失效
    用于热处理粉状原料煅烧炉的方法

    公开(公告)号:US4372784A

    公开(公告)日:1983-02-08

    申请号:US295218

    申请日:1981-08-21

    申请人: Paul D. Hess

    发明人: Paul D. Hess

    CPC分类号: C04B7/434 F27B7/2033

    摘要: A calcining combustor for the suspension preheater of a rotary kiln cement manufacturing plant having a cooler for the clinker comprises an upright furnace vessel having an outwardly spiraling gas exhaust duct at its upper end leading to a preheater gas/meal separator and a mixing portion at its lower end; an inlet for hot combustion air from the cooler into the mixing portion; an inlet for cement meal from the preheater into the mixing portion downstream from the combustion air inlet to entrain the meal in the rising combustion air; and burners for injecting fuel into the air/meal stream downstream from the meal inlet to calcine the meal by heat released by burning of the fuel with the combustion air. The initial calcination temperature is a minimum because the combustion air atmosphere within the combustor is devoid of significant amounts of carbon dioxide and chlorine and alkali vapors typically present in kiln-off gases, and the endothermic calcination reaction absorbs heat energy to limit temperature rise within the combustor so that caking and formation of alkali and nitrogen oxide vapors is minimized. An alternative embodiment has an inlet for hot kiln-off gases into the furnace vessel at a point where substantial calcination has occurred so that both (a) calcining and (b) mixing of the calcined meal/air stream with the kiln-off gases to transfer heat energy thereto occur in a single vessel.

    摘要翻译: 用于具有用于熟料的冷却器的回转窑水泥制造厂的悬浮预热器的煅烧燃烧器包括立式炉容器,其在其上端具有向外螺旋形的排气管道,其通向预热器气体/粉碎分离器和混合部分 下端 用于从冷却器到混合部分的热燃烧空气的入口; 来自预热器的水泥粉的入口进入燃烧空气入口下游的混合部分,以在上升的燃烧空气中夹带餐; 以及用于将燃料喷射到进餐口下游的空气/膳食流中的燃烧器,以通过用助燃空气燃烧燃料而释放的热量来煅烧餐。 初始煅烧温度是最小的,因为燃烧器内的燃烧空气气氛中没有大量的二氧化碳,典型地存在于窑式气体中的氯和碱蒸汽,吸热煅烧反应吸收热能来限制温度升高 从而使碱和氮氧化物蒸气的结块和形成最小化。 替代实施例具有用于在已经发生实质的煅烧的点处将热的窑炉气体进入炉膛的入口,以便(a)煅烧和(b)将煅烧的粕/空气流与窑炉气体混合到 将热能转移到单个容器中。

    Method and apparatus for the thermal treatment of fine-grained material
with hot gases
    72.
    发明授权
    Method and apparatus for the thermal treatment of fine-grained material with hot gases 失效
    用热气体热处理细粒材料的方法和装置

    公开(公告)号:US4323397A

    公开(公告)日:1982-04-06

    申请号:US242396

    申请日:1981-03-10

    CPC分类号: F27B7/2033 C04B7/43

    摘要: Method and apparatus for the thermal treatment of finely divided material for the calcination of cement wherein the material is preheated in a multi-stage heat exchanger and later passed to a calcining furnace. The material is partly deacidified in a pre-calcination zone before entering the sintering furnace where further calcining and sintering of the material is completed. A portion of the feed material is treated with rapidly oxidizing fuel components in a pre-calcination zone in a first stage and with more slowly oxidizing fuel components in a second stage, the more slowly oxidizing fuel components being a mixture of relatively fine granulated fuel particles of substantially uniform size and larger particles of briquetted or coarsely broken fuel.

    摘要翻译: 用于热处理用于煅烧水泥的细碎材料的方法和装置,其中材料在多级热交换器中预热,然后传递到煅烧炉。 该材料在进入烧结炉之前的预煅烧区域部分脱酸,其中材料的进一步煅烧和烧结完成。 原料的一部分在第一阶段的预煅烧区中用快速氧化的燃料组分处理,在第二阶段用更缓慢氧化的燃料组分进行处理,较慢氧化的燃料组分是较细的颗粒状燃料颗粒 具有基本均匀的尺寸和较大的压块或粗破碎燃料颗粒。

    Manufacture of cement
    73.
    发明授权
    Manufacture of cement 失效
    水泥制造

    公开(公告)号:US4276092A

    公开(公告)日:1981-06-30

    申请号:US99310

    申请日:1979-12-03

    IPC分类号: C04B7/43 C04B7/60 F27B7/20

    CPC分类号: F27B7/20 C04B7/43 C04B7/60

    摘要: Volatiles-rich dust and kiln gases are removed from a cement kiln by means of a special by-pass probe system located in the inlet end of the kiln. The probe system is designated to prevent the build-up of solidified volatiles-rich dust on the probe surfaces.

    摘要翻译: 通过位于窑入口端的特殊旁路探头系统,从水泥窑中除去富含挥发物的灰尘和窑气。 探针系统被指定用于防止在探针表面积聚富含挥发物的灰尘。

    Rotary tube
    75.
    发明授权
    Rotary tube 失效
    旋转管

    公开(公告)号:US4260372A

    公开(公告)日:1981-04-07

    申请号:US132947

    申请日:1980-03-24

    申请人: Wolfgang Keller

    发明人: Wolfgang Keller

    IPC分类号: F27B7/04 F27B7/20 F27B7/00

    CPC分类号: F27B7/20 F27B7/04

    摘要: In rotary tubes (1), an insert (4) which expands under the influence of heat can be moved in the radical direction in a cold outer casing (3) by means of an end plate (19) but is fixed in the axial direction, whereas other plates (20, 21) of the insert (4) have cogs (27) which are guided in sliding grooves (16) parallel to the axis due to the thermal expansion, each plate (20, 21) being provided with at least three cogs (24) and three sliding grooves (16) over its periphery.

    摘要翻译: 在旋转管(1)中,在热影响下膨胀的插入件(4)可以通过端板(19)在冷的外壳(3)中沿自由度方向移动,但是在轴向方向 ,而插入件(4)的其它板(20,21)具有由于热膨胀而在平行于轴线的滑动槽(16)中引导的齿形构件(27),每个板(20,21)设置有 至少三个齿轮(24)和三个滑动槽(16)。

    Method and apparatus for the thermal treatment of fine-grained material
with hot gases
    76.
    发明授权
    Method and apparatus for the thermal treatment of fine-grained material with hot gases 失效
    用热气体热处理细粒材料的方法和装置

    公开(公告)号:US4226586A

    公开(公告)日:1980-10-07

    申请号:US932902

    申请日:1978-08-11

    CPC分类号: C04B7/434 F27B7/2033

    摘要: An apparatus for the thermal treatment of fine-grained material such as for the calcination of cement including a suspension type gas heat exchanger having a plurality of stages of progressively higher temperatures in the direction of material flow. A conduit connects the hottest stage of the heat exchanger with a rotary kiln. A combustion zone is provided within the conduit and rapidly oxidizing fuel components are introduced into this combustion zone. Slowly oxidizing fuel components are introduced into the rotary kiln in a second combustion zone.

    摘要翻译: 一种用于热处理细粒材料的设备,例如用于煅烧包括悬浮型气体热交换器的水泥,其具有在材料流动方向上逐渐升高的温度级。 导管将热交换器的最热阶段与回转窑连接。 燃烧区设置在管道内,并迅速氧化燃料成分被引入该燃烧区。 将缓慢氧化的燃料成分引入第二燃烧区的回转窑中。

    Apparatus for the production of cement clinkers from moist agglomerated
raw material
    77.
    发明授权
    Apparatus for the production of cement clinkers from moist agglomerated raw material 失效
    用于从潮湿聚集的原料生产水泥熟料的设备

    公开(公告)号:US4226585A

    公开(公告)日:1980-10-07

    申请号:US912995

    申请日:1978-06-06

    申请人: Herbert Deussner

    发明人: Herbert Deussner

    摘要: A method and apparatus for the production of cement clinker from a raw material containing sufficient moisture to be agglomerated wherein the raw material is dried and subsequently subjected to calcining in a series of steps including preheating, deacidification, sintering and cooling. The exhaust gases are passed from the calcining step into the drying step. The raw material exiting from the drying step is pulverized into a fine powder and then transferred directly into the preheating step without intermediate storage.

    摘要翻译: 一种用于从含有足够水分的原料中生产水泥熟料的方法和装置,其中原料被干燥并随后经过包括预热,脱酸,烧结和冷却的一系列步骤进行煅烧。 废气从煅烧步骤进入干燥步骤。 将从干燥步骤出来的原料粉碎成细粉末,然后直接转移到预热步骤中而不中间储存。

    Method and apparatus for the thermal treatment of fine-grained material
with hot gases
    78.
    发明授权
    Method and apparatus for the thermal treatment of fine-grained material with hot gases 失效
    用热气体热处理细粒材料的方法和装置

    公开(公告)号:US4218209A

    公开(公告)日:1980-08-19

    申请号:US933484

    申请日:1978-08-14

    摘要: Method and apparatus for heat treatment of comminuted raw material of the type used, for example, for the production of cement in which the material is preheated in a preheater by means of hot exhaust gases from a kiln, the material is separately calcined for the deacidification of a portion of the calcium carbonate present and is subsequently burnt to completion in the kiln. The specific improvement of the present invention involves utilizing undispersed coarse pieces of fuel for the separate calcination and conducting the separate calcination at the material inlet end to the kiln.

    摘要翻译: 用于例如用于生产水泥的粉碎原料的热处理方法和装置,其中材料通过来自窑的热废气在预热器中预热,该材料被分别煅烧用于脱酸 的一部分碳酸钙存在并随后在窑炉中燃烧完成。 本发明的具体改进包括利用未分散的大块燃料进行单独的煅烧,并在窑的材料入口端进行单独的煅烧。

    Method and device for sintering material of different granular size
    79.
    发明授权
    Method and device for sintering material of different granular size 失效
    不同粒度烧结材料的方法和装置

    公开(公告)号:US4217092A

    公开(公告)日:1980-08-12

    申请号:US956140

    申请日:1978-10-30

    CPC分类号: C04B2/10 C04B7/44 F27B7/2016

    摘要: A method and device for sintering materials and, in particular, limestone gravel, of very different granular size in the granular range of 5 to 50 mm, in a rotary shaft kiln with a shaft preheater and shaft cooler, are provided wherein the sintering charge of the original gravels are crushed into two or more granular fractions and are fed in a low band width to the furnace system periodically and alternately, and wherein the process gases flow through the filling or charge layers of the sintering materials. The filling layers are automatically changed in the shaft preheater and the shaft cooler in their thickness, so that the flow through resistance thereof remains constant.

    摘要翻译: 提供了一种用于在具有轴预热器和轴冷却器的旋转轴窑中烧结材料,特别是在5至50mm的粒度范围内具有非常不同的粒度的石灰石砾石的方法和装置,其中烧结装料 原始砂砾被粉碎成两个或更多个颗粒部分,并且以低带宽周期性地和交替地供给炉系统,并且其中工艺气体流过烧结材料的填充层或电荷层。 填充层在轴预热器和轴冷却器的厚度上自动变化,使得其流动阻力保持恒定。

    Method and apparatus for the production of cement clinker low in alkali
from alkali-containing raw material
    80.
    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。