Method of melting raw materials
    1.
    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from the tank exhaust gases before the tank exhaust gases are used to preheat the combustion air, more heat can be withdrawn from the tank exhaust gases than was heretofore possible, since there is no danger of acid condensation even when the tank exhaust gases are cooled to near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。

    Facility for generating fibers, in particular mineral fibers, from a
molten mass
    2.
    发明授权
    Facility for generating fibers, in particular mineral fibers, from a molten mass 失效
    用于从熔融物质产生纤维,特别是矿物纤维的设备

    公开(公告)号:US4961695A

    公开(公告)日:1990-10-09

    申请号:US316705

    申请日:1989-02-28

    IPC分类号: C03B37/06 D01D5/098

    摘要: In an unraveling facility according to the blast drawing process a subsonic diffuser (11) is arranged following the blast pipe (6). The subsonic diffuser (11) is designed as a thrust diffuser with a sudden cross-sectional widening of its flow border in order to form several stages (13, 14, 15). In this way, a larger median expansion angle (.alpha.) can be chosen without risking detrimental detachment of the main flow than is possible with subsonic diffusers having a continuous flow border. Furthermore, the whirls formed under setoff levels prevent the fiber parts from coming into direct contact with the walls, so that a considerably reduced bead content results in combination with the strong flow expansion and ensuing reduction of mutual contact and penetration of fiber parts. The diameter distribution of the fibers is smoothed out, since speed distribution, which exhibits strong border stress when it emerges from the drawing gap (8), is smoothed out quicker due to the energy consumed by the whirls. By systematically introducing additional blasting medium in the area of the subsonic diffuser (11), the flow can be systematically influenced in order to meet all the requirements posed for fiber quality.

    摘要翻译: 在根据喷砂工艺的拆卸设备中,亚音速扩散器(11)布置在鼓风管(6)之后。 亚音速扩散器(11)被设计为具有其流动边界的突然横截面变宽的推力扩散器,以形成几个阶段(13,14,15)。 以这种方式,可以选择较大的中值膨胀角(α),而不会有主流的有害分离,而不是具有连续流动边界的亚音速扩散器的可能性。 此外,在切割水平下形成的旋转阻止纤维部分与壁直接接触,从而显着降低的珠粒含量导致纤维部件的相互接触和渗透的强烈的流动膨胀和随后的减少。 纤维的直径分布平滑,因为当从拉拔间隙(8)出现时表现出强的边界应力的速度分布由于旋转消耗的能量而更快地平滑。 通过在亚音速扩散器(11)的区域中系统地引入额外的喷砂介质,可以有系统地影响流量,以满足纤维质量的所有要求。

    Apparatus for producing fibres from silicate raw materials such as
basalt by blast drawing
    3.
    发明授权
    Apparatus for producing fibres from silicate raw materials such as basalt by blast drawing 失效
    用于从硅酸盐原料如玄武岩通过喷砂制造纤维的装置

    公开(公告)号:US4822392A

    公开(公告)日:1989-04-18

    申请号:US111125

    申请日:1987-10-22

    IPC分类号: C03B37/06 C03C25/02

    CPC分类号: C03B37/06

    摘要: Apparatus for producing mineral fibres from silicate raw materials such as basalt by blast drawing.When blast drawing is used to produce mineral fibres from basalt, there is arranged between the entry zone (26) of the chute (16) and the exit zone of the nozzle slot (10) of the blast nozzle unit (8), this slot forming the fiberization duct, a guide cell (13). The relative position of the side walls (29) of the guide cell is freely adjustable, so that desired flow conditions can be set and also the exit direction of the exit flow bundle (31) and hence the web formation can be controlled. As a consequence of a lateral distance (a) of the exit orifice (28) of the guide cell (13) relative to the entry flow bundle (27) additional secondary air is sucked in, which has a further cooling effect on the fibres. At the exit orifice (30) from the guide cell (13) the flow is restructured and emerges as a cooled exit flow bundle (31) and is at that point initially subjected to a further cooling with cooling water applied by spray nozzles (14 ) and by further secondary air sucked into this zone before the application of binder from spray nozzles (15). The spray axis (15a) of the spray nozzles (15) forms an acute angle (.alpha.) with the axis (11a) of the exit flow bundle (31) in order to ensure homogeneous incorporation of binder into the flow bundle (31).

    摘要翻译: 用于从硅酸盐原料如玄武岩通过喷丸生产矿物纤维的设备。 当用玄武岩生产矿物纤维时,布置在滑槽(16)的进入区(26)和喷嘴单元(8)的喷嘴槽(10)的出口区之间,这个槽 形成纤维化导管,引导单元(13)。 引导单元的侧壁(29)的相对位置是可自由调节的,从而可以设定所需的流动条件,并且还可以控制出口流束(31)的排出方向,从而可以控制卷材的形成。 作为引导单元(13)相对于进入流束(27)的出口孔(28)的横向距离(a)的结果,附加的二次空气被吸入,这对纤维具有进一步的冷却效果。 在来自引导单元(13)的出口孔(30)处,流动被重组并作为冷却的出口流束(31)而出现,并且在该点处最初经由喷嘴(14)施加的冷却水进一步冷却, 并且在从喷嘴(15)施加粘合剂之前通过进一步的二次空气吸入该区域。 喷嘴(15)的喷射轴(15a)与出口流束(31)的轴线(11a)形成锐角(α),以确保粘合剂均匀地结合到流束(31)中。

    Apparatus for producing mineral fibres from molten silicate by blast
drawing
    4.
    发明授权
    Apparatus for producing mineral fibres from molten silicate by blast drawing 失效
    用于通过喷丸法从熔融硅酸盐生产矿物纤维的装置

    公开(公告)号:US4698086A

    公开(公告)日:1987-10-06

    申请号:US839225

    申请日:1986-03-13

    IPC分类号: C03B37/06

    CPC分类号: C03B37/06

    摘要: To produce basalt wool having a large fibre diameter of if desired 10 .mu.m with high output and low bead formation, the exit cross-section of the exit orifices (6) of the distributor tank (5), the vertical distance (vA) between the exit orifices (6) and the blow-in slits (29) for propellant gas, the horizontal width (hB) of the nozzle slot (10) and the vertical length (vL) of the nozzle slot (10) downstream of the blow-in slits (29) are dimensioned to be unusually large for an apparatus for producing rock fibres by blast drawing. As a result, it is possible to operate at a low melt temperature and a high propellant gas rate combined with a low propellant gas pressure in order, surprisingly, to obtain a coarse-fibered product with low bead formation and high output. In the area of the blow-in slits (29) the airguide lips (28) advantageously form an abruptly terminated slot constriction in order to assist the fiberization therein and to utilize the subsequent long vertical length (vL) of the nozzle slot (10) in full for fiber drawing without thereby incurring marked bead formation.

    摘要翻译: 为了生产具有大纤维直径的玄武岩羊毛,如果需要,10米,高产量和低珠粒形成,分配罐(5)的出口孔(6)的出口横截面,垂直距离(vA)在 出口孔(6)和用于推进气体的吹入狭缝(29),喷嘴槽(10)的水平宽度(hB)和喷嘴槽(10)在吹气下游的垂直长度(vL) - 狭缝(29)的尺寸对于通过鼓风拉制生产岩石纤维的装置是非常大的。 结果,可以在低熔体温度和高推进剂气体速率下结合低推进剂气体压力进行操作,令人惊奇的是获得具有低珠粒形成和高输出的粗纤维产品。 在吹入狭缝(29)的区域中,空气引导嘴唇(28)有利地形成突然终止的槽狭窄,以帮助其中的纤维化并利用喷嘴槽(10)的随后的长垂直长度(vL) 完全用于纤维拉伸,而不会引起明显的珠粒形成。