Process for the manufacture of an exhaust silencer
    1.
    发明授权
    Process for the manufacture of an exhaust silencer 失效
    制造废气消声器的方法

    公开(公告)号:US5036585A

    公开(公告)日:1991-08-06

    申请号:US389813

    申请日:1989-08-04

    IPC分类号: F01N1/24 F01N13/18

    摘要: In a process for the manufacture of an exhaust silencer for motor vehicles, the advantages derived from employing mineral fiber mouldings are extensively retained while at the same time greatly reducing expenditure on shape-stabilization and transportation. To this end the silencer casing itself is divided in the meridian plane and the mineral wool is supplied and inserted directly into the original silencer casing in the form of precisely dimensioned prefabricated elements which have been impregnated with a suitable fluid, for example pretreated with synthetic resin, but not cured. This enables fast and reliable positioning of the impregnated and manually compressed prefabricated elements around the periphery of the exhaust pipe and the internal component containing the exhaust pipe inside the original silencer casing; once the silencer casing has been closed, the silencer is ready for installation. Curing, hardening or some other time consuming method of shape-stabilization is not necessary. Nevertheless, in comparison with packing the silencer casing with loose mineral wool, a more even fiber distribution is achieved, and the introduction of a specified quantity of fibers is assured through the employment of prefabricated elements, whereby the impregnation of the prefabricated elements renders them soft and pliable and thus easy to work with when placing them in position under compression.

    摘要翻译: 在制造汽车用排气消音器的过程中,广泛地保留了使用矿物纤维模制品的优点,同时大大降低了形状稳定和运输方面的支出。 为此,消音器外壳本身分为子午线平面,矿棉被提供并以精确尺寸的预制元件的形式直接插入原始消音器外壳中,这些元件已经浸渍有合适的流体,例如用合成树脂预处理 ,但没有治愈。 这使得浸渍和手动压缩的预制构件能够快速可靠地定位在排气管的周围以及在原始消音器壳体内部包含排气管的内部部件; 一旦消声器外壳已经关闭,消声器就可以安装了。 固化,硬化或其他一些耗时的形状稳定方法是不必要的。 然而,与使用松散的矿棉包装消声器套管相比,实现更均匀的纤维分布,并且通过使用预制构件来确保引入特定数量的纤维,由此预制构件的浸渍使其柔软 并且当将它们放置在压缩位置时,它是柔韧的并且因此易于使用。

    Process and apparatus for the continuous production of mineral wool
nonwovens
    2.
    发明授权
    Process and apparatus for the continuous production of mineral wool nonwovens 失效
    用于连续生产矿棉无纺布的工艺和设备

    公开(公告)号:US5296013A

    公开(公告)日:1994-03-22

    申请号:US912171

    申请日:1992-07-13

    摘要: A process and apparatus for the continuous production of mineral wool nonwovens in which the objective is to provide a process and an apparatus for the continuous production of mineral wool nonwovens, by means of which a stable flow pattern is created in the chute, thus facilitating a clearly defined, homogeneous layer of deposited mineral wool in which at least one backflow region (24, 25) is generated in the chute (9) outside the fibre flow (23), which backflow region (24, 25) is sufficient for such a large-volume backflow with such a low mean velocity that appreciable upward fibre transport is avoided. In this connection, a portion (32) of the process air entrained with the fibre flow is deflected upward in the backflow, and another portion (34) of the process air is extracted.

    摘要翻译: 用于连续生产矿棉无纺布的方法和设备,其目的是提供一种用于连续生产矿棉无纺布的方法和设备,通过该无纺布在槽中产生稳定的流动图案,从而便于 明确限定的均匀沉积的矿棉层,其中在纤维流(23)外部的斜槽(9)中产生至少一个回流区域(24,25),该回流区域(24,25)对于这样的 避免了具有如此低平均速度的大容量回流,可以看出向上的纤维传输。 在这方面,夹带有纤维流的工艺空气的一部分(32)在回流中向上偏转,并且提取处理空气的另一部分(34)。

    Process and apparatus for the continuous production of mineral wool
nonwovens
    3.
    发明授权
    Process and apparatus for the continuous production of mineral wool nonwovens 失效
    用于连续生产矿棉无纺布的工艺和设备

    公开(公告)号:US5368623A

    公开(公告)日:1994-11-29

    申请号:US176472

    申请日:1994-01-03

    摘要: The objective is to provide a process and an apparatus for the continuous production of mineral wool nonwovens, by means of which a stable flow pattern is created in the chute, thus facilitating a clearly defined, homogeneous layer of deposited mineral wool.According to the invention, at least one backflow region (24, 25) is generated in the chute (9) outside the fibre flow (23), which backflow region (24, 25) is sufficient for such a large-volume backflow with such a low mean velocity that appreciable upward fibre transport is avoided. In this connection, a portion (32) of the process air entrained with the fibre flow is deflected upward in the backflow, and another portion (34) of the process air is extracted.

    摘要翻译: 目的是提供一种用于连续生产矿棉无纺布的方法和设备,通过该方法在滑槽中产生稳定的流动模式,从而有助于清楚地定义均匀的沉积的矿棉层。 根据本发明,在纤维流(23)外部的滑槽(9)中产生至少一个回流区域(24,25),该回流区域(24,25)足以用于这种大容量的回流 避免了明显的向上纤维传输的低平均速度。 在这方面,夹带有纤维流的工艺空气的一部分(32)在回流中向上偏转,并且提取处理空气的另一部分(34)。

    Method of melting raw materials
    4.
    发明授权
    Method of melting raw materials 失效
    原料熔化方法

    公开(公告)号:US4940478A

    公开(公告)日:1990-07-10

    申请号:US243240

    申请日:1988-09-08

    摘要: A process of melting silicate raw materials includes the steps of using the tank exhaust gases to heat the combustion air, using the tank exhaust gases to preheat a mixture of raw materials, removing acid gaseous aggressive media from the tank exhaust gases, then using the tank exhaust gases to preheat the combination air. Because the acid gaseous aggressive media are removed from the tank exhaust gases before the tank exhaust gases are used to preheat the combustion air, more heat can be withdrawn from the tank exhaust gases than was heretofore possible, since there is no danger of acid condensation even when the tank exhaust gases are cooled to near ambient temperature.

    摘要翻译: 硅酸盐原料的熔化过程包括以下步骤:使用罐废气来加热燃烧空气,使用罐废气来预热原料混合物,从罐废气中除去酸性气体腐蚀性介质,然后使用罐 废气预热组合空气。 因为在罐排气用于预热燃烧空气之前,酸性气体腐蚀性介质被从罐排气中除去,因此即使没有酸冷凝的危险,也可以从罐排气中抽出更多的热量 当油箱废气冷却到接近环境温度时。

    Process and device for the production of mineral wool nonwoven fabrics
especially from rock wool
    5.
    发明授权
    Process and device for the production of mineral wool nonwoven fabrics especially from rock wool 失效
    用于生产矿棉无纺布的方法和装置特别是从岩棉

    公开(公告)号:US5093069A

    公开(公告)日:1992-03-03

    申请号:US545871

    申请日:1990-06-29

    摘要: In the continuous production of mineral wool nonwoven fabrics, fiber/gas/air mixtures (3, 4) produced by several shredding units (14 to 17) are directed onto collecting conveyor units (19, 21) with suction surfaces (c, d) running in a curve and being under suction pressure for the formation of a wool nonwoven fabric (25). In this case the arrangement is such that an imaginary suction surface, increasing in its size in the conveying direction, is assigned to each fiber/gas/air mixture formed by the individual shredding units (14 to 17), actually d is larger than c. As a result it is possible, in a space-saving method of construction and per collecting conveyor unit to produce mineral wool nonwoven fabrics from rock wool with constant suction pressure with bulk densities even under 25 kg/m.sup.3 in good product quality. By series connection of several units or an oscillating deposit of an individual nonwoven fabric multilayer felt webs can further be formed.

    摘要翻译: 在矿棉无纺布的连续生产中,由多个粉碎单元(14至17)生产的纤维/气/空气混合物(3,4)被引导到具有吸力表面(c,d)的收集输送单元(19,21) 在曲线中运行并处于用于形成羊毛无纺布(25)的吸入压力下。 在这种情况下,这种布置使得其在输送方向上的尺寸增加的假想吸力表面被分配给由各个切碎单元(14至17)形成的每个纤维/气体/空气混合物,实际上d大于c 。 因此,在节省空间的施工方法和每个收集输送机单元中,可以从具有恒定吸入压力的岩棉制造矿棉无纺布,即使在25kg / m 3以下的体积密度下也能获得良好的产品质量。 可以进一步形成多个单元的串联连接或各个非织造布的多层毡的振动沉积。

    Process for the production of needle felt from rock wool
    6.
    发明授权
    Process for the production of needle felt from rock wool 失效
    从羊毛制造针状毡的方法

    公开(公告)号:US5057173A

    公开(公告)日:1991-10-15

    申请号:US416228

    申请日:1989-09-26

    CPC分类号: D04H1/4209 D04H1/46

    摘要: By combining two measures, namely by using rock wool fibers with a particularly low fiber thickness, and by adding an avivage agent with an unusually high viscosity, it is possible to needle a rock wool felt, without adding any other fibers, to produce a needle felt with high strength and good bendability. If the needle felt is subsequently relaxed with heat treatment, and the avivage agent is also expelled during this treatment, the needle felt is then available as a pure rock wool needle felt, free of any organic additives.

    摘要翻译: 通过结合两种措施,即使用特别低纤维厚度的岩棉纤维,并通过添加具有非常高的粘度的空气净化剂,可以在没有添加任何其它纤维的情况下针刺岩棉毡以产生针 感觉强度高,弯曲性好。 如果针刺毡随后经过热处理而松弛,并且在该处理过程中,排气剂也被排出,则针刺毡可以作为纯岩棉针刺毡而得到,没有任何有机添加剂。