Feed system for asphalt recycling drum mixers
    111.
    发明授权
    Feed system for asphalt recycling drum mixers 失效
    沥青回收鼓混合机的进料系统

    公开(公告)号:US4395129A

    公开(公告)日:1983-07-26

    申请号:US345565

    申请日:1982-02-04

    Inventor: Joseph E. Musil

    CPC classification number: E01C19/1036 E01C2019/1095

    Abstract: A drum mixer for recycling old asphalt pavement features a stationary shroud enveloping a series of circumferentially spaced feed ports medially of the drum. The old pavement is introduced tangentially into the shroud and then into a series of "hoppers" within the shroud formed about the feed ports and revolving with the drum. The old pavement falls through the feed ports onto the exterior of a conical inner drum and is directed to the downstream end of the latter by flighting thereon where it joins virgin aggregate emerging from the interior of the inner drum.

    Abstract translation: 用于回收旧沥青路面的鼓式混合器具有包围滚筒中间的一系列周向间隔开的进料口的固定护罩。 旧的路面被切向地引导到护罩中,然后被引入围绕进料口形成并且与滚筒一起旋转的护罩内的一系列“料斗”。 旧路面通过进料口落到锥形内鼓的外部,并通过在其上的飞行而被引导到其下游端,其中它连接从内鼓的内部出来的未加工的聚集体。

    Apparatus for mixing salvaged asphalt material
    112.
    发明授权
    Apparatus for mixing salvaged asphalt material 失效
    用于混合沥青沥青材料的装置

    公开(公告)号:US4361406A

    公开(公告)日:1982-11-30

    申请号:US275453

    申请日:1981-06-22

    CPC classification number: E01C19/1036 E01C2019/1095

    Abstract: An elongated drum for mixing asphalt materials has a rear inlet end, a front outlet end and a side wall concentric to a substantially horizontal axis about which the drum rotates. For feeding salvaged asphalt material into the drum, the side wall has circumferentially spaced ports in a zone intermediate said ends. As ports move upwardly in their orbits, material falls toward them from the bottom outlet of a hopper above the drum and is guided into them by chutes, one for each port, that are fixed to the side wall and project out from it. Also, fixed to the side wall is an inwardly projecting spout for each port whereby material entering the port is deflected forwardly to fall to the bottom of the drum in front of the ported zone. Material moving forward from the rear of the drum is deflected around the ports by the spout walls. An annular trough-like shroud encircles the drum at said zone, embracing the chutes as they move orbitally and preventing incursion of external ambient air into the ports. A hole in the shroud, in line with the upper outlet, is either blocked by salvaged material in the hopper or is closed by a gate for use with all-virgin materials.

    Abstract translation: 用于混合沥青材料的细长滚筒具有后入口端,前出口端和与滚筒绕其旋转的基本水平轴线同心的侧壁。 为了将回收沥青材料送入滚筒中,侧壁在所述端部之间的区域中具有周向间隔开的端口。 当端口在其轨道上向上移动时,材料从滚筒上方的料斗的底部出口向下倾斜,并且通过滑槽引导到它们中,每个端口一个固定到侧壁并从其突出。 此外,固定在侧壁上的是每个端口的向内突出的喷口,由此进入端口的材料向前偏转以在移动区域前方落到滚筒的底部。 从鼓的后部向前移动的材料通过喷口壁在端口周围偏转。 环形槽状护罩在所述区域包围滚筒,当它们轨道运动时包围滑槽,并防止外部环境空气进入端口。 护罩中的与上部出口一致的孔,或者被料斗中的被打捞的材料阻挡,或者被​​一个与所有原始材料一起使用的门关闭。

    Method of and apparatus for asphaltic concrete hot mix recycling
    113.
    发明授权
    Method of and apparatus for asphaltic concrete hot mix recycling 失效
    沥青混凝土热拌回收方法及设备

    公开(公告)号:US4318619A

    公开(公告)日:1982-03-09

    申请号:US151273

    申请日:1980-05-19

    Abstract: A method of hot mix recycling of old asphaltic concrete paving heats the old pavement, after it has been removed and sized, to a temperature below its firing point and heats fresh aggregate to a greater temperature before combining the two and adding new asphalt. The method is embodied in a drum-mixer type of apparatus modified by inserting a smaller drum in the upstream portion of the large drum. The burner fires into the smaller drum into which the fresh aggregate only is introduced while the old mix (plus additional fresh aggregate in certain cases) is introduced into the annular space between the two drums, the fresh aggregate and the old mix being thereafter combined in the large drum, new asphalt added and the mix further heated.

    Abstract translation: 旧沥青混凝土铺路的热混合回收方法将旧路面加热后的旧路面加热到低于其点火点的温度,并将新鲜骨料加热到更高的温度,然后将两者混合并加入新沥青。 该方法体现在通过将较小的滚筒插入大鼓的上游部分而改进的滚筒混合器型装置中。 燃烧器燃烧到较小的鼓中,新鲜聚集体仅在其中被引入,而旧混合物(在某些情况下加上另外的新鲜骨料)被引入两个鼓之间的环形空间中,然后将新鲜骨料和旧混合物组合 大鼓,新沥青加入和混合物进一步加热。

    Device for the preparation of coated bituminous products for road
surfacing
    114.
    发明授权
    Device for the preparation of coated bituminous products for road surfacing 失效
    用于道路铺面的涂层沥青产品的制备装置

    公开(公告)号:US4300837A

    公开(公告)日:1981-11-17

    申请号:US127970

    申请日:1980-03-07

    Inventor: Pierre Malbrunot

    CPC classification number: E01C19/1036 E01C2019/1095

    Abstract: The device includes in a rotary cylindrical drum (1) a zone for transfer and heating (11) where the inner surface of the drum (1) is fitted with sections of blades (17) wound in a spiral across the drum (1). These blades (17) arranged projecting with respect to the inner surface of the drum (1), by their edges remote from the drum support baffleplates (18) in a longitudinal direction. The drum (1) likewise exhibits an isolation and drying zone (12) where the inner surface of the drum (1) is fitted with lifter devices (20-21) having a high retention capacity for lifting materials (25) up to the upper portion of the drum (1) and the formation by falling back of these materials (25) of a continuous screen isolating the flame (5) of the burner (4) from the next zone of the drum (1).

    Abstract translation: 该装置在旋转圆柱形滚筒(1)中包括用于传送和加热的区域(11),其中滚筒(1)的内表面装配有缠绕在滚筒(1)上的螺旋形的叶片部分(17)。 这些叶片(17)相对于滚筒(1)的内表面沿其纵向方向远离鼓支撑挡板(18)的边缘布置。 滚筒(1)同样呈现隔离和干燥区域(12),其中滚筒(1)的内表面装有具有高保持能力的提升装置(20-21),用于提升材料(25)直到上部 滚筒(1)的部分和通过将这些材料(25)落下的连续筛网形成,从而将燃烧器(4)的火焰(5)与滚筒(1)的下一个区域隔开。

    Center draft asphaltic concrete drum mixer
    115.
    发明授权
    Center draft asphaltic concrete drum mixer 失效
    沥青混凝土搅拌机中心草稿

    公开(公告)号:US4298287A

    公开(公告)日:1981-11-03

    申请号:US143787

    申请日:1980-04-25

    CPC classification number: E01C19/1031 E01C19/1036 E01C2019/1095

    Abstract: In a continuous drum mix asphalt plant, dust is exhausted from an intermediate zone of the drum mixer between its drying and mixing zones. The dust is exhausted radially through openings into a collection housing, which communicates with a dust collector and exhaust blower. An end housing at the discharge end of the drum communicates with the same dust collector and blower. Dampers are provided to control the relative proportion of air exhausted from the drum through the respective housings. Aggregate deflectors on the interior wall of the drum at the intermediate zone allow air and dust to flow while inhibiting the flow of aggregate. The collection housing surrounding the intermediate zone is of a size such as to produce a reduction in the velocity of the air as it passes out of the drum. Consequently, it serves as a knock-out box for the collection of larger particles which are carried out of the drum, but which settle out of the air stream as a result of the velocity decrease. These collected particles are reintroduced into the drum by scoops on the exterior of the drum. These scoops are also used for the introduction of recycled asphaltic concrete.

    Abstract translation: 在连续的鼓式混合沥青设备中,粉尘从其在干燥和混合区域之间的鼓式混合器的中间区域排出。 灰尘通过开口径向排放到收集壳体中,该收集壳体与集尘器和排风机连通。 滚筒排出端的端部壳体与相同的集尘器和鼓风机连通。 提供阻尼器以控制从鼓通过相应外壳排出的空气的相对比例。 在中间区域的鼓的内壁上的聚集偏转器允许空气和灰尘流动同时抑制聚集体的流动。 围绕中间区域的收集壳体具有的尺寸使得当空气流出滚筒时,空气的速度降低。 因此,它用作收集较大的颗粒的敲除箱,其由滚筒进行,但由于速度的降低而沉淀在空气流中。 这些收集的颗粒通过滚筒外部的勺子重新引入滚筒。 这些勺子也用于引进再生沥青混凝土。

    Process for recycling asphalt-aggregate compositions
    116.
    再颁专利
    Process for recycling asphalt-aggregate compositions 失效
    回收沥青骨料组合物的方法

    公开(公告)号:USRE30685E

    公开(公告)日:1981-07-21

    申请号:US875397

    申请日:1978-02-06

    Abstract: In recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually directed towards an output end of the drum, the improvement comprising adding an amount of petroleum hydrocarbon to achieve a laid down asphalt penetration of between 25 and 300 dmm at 77.degree. F. A further embodiment of the improved process comprises venting a mixture of hydrocarbon gases and moisture vaporized from the hot composition mixture at the output end of the apparatus, condensing the moisture and removing it and returning the hydrocarbon gases to a combustion chamber for providing heat to the apparatus tubes. Still another improvement comprises an apparatus modification wherein a plurality of relatively short pipes are disposed in the forward ends of the heating tubes through a front plate displaced from the forward end wall of the drum with the open pipe ends exposed to the combustion chamber for providing heat to the interior of the heating tubes.

    Asphalt-aggregate production
    117.
    发明授权
    Asphalt-aggregate production 失效
    沥青骨料生产

    公开(公告)号:US4182631A

    公开(公告)日:1980-01-08

    申请号:US718063

    申请日:1976-08-26

    Abstract: In a process for producing asphalt-aggregate compositions in a conventional type dryer-mixer drum in which aggregate is exposed directly to flame and hot gases of combustion while it cascades in the rotating drum, and in which the flame and hot gases of combustion are directed into an input end of the drum, the improvement comprises separating the aggregate into a plurality of different portions or increments each having different particle size ranges, introducing the coarse or larger aggregate particles into the drum and directly exposing them to the flame, its radient heat, hot gases of combustion at the input end, and introducing the finer or smaller aggregate particles downstream from the input end and away from direct exposure to the flame and extremely hot gases in a temperature zone which will avoid overheating the fine particles. The improved apparatus includes means for introducing the coarse particles at the input drum end for direct exposure to the flame or hottest gases and means for introducing the fine or smaller particles in a cooler zone of the apparatus.

    Abstract translation: 在用于在传统型干燥器 - 混合器鼓中生产沥青骨料组合物的方法中,其中聚集体直接暴露于火焰和热的燃烧气体中,同时在旋转滚筒中级联,并且其中燃烧的火焰和热气体被引导 进入滚筒的输入端,改进包括将聚集体分成多个不同的部分或每个具有不同粒度范围的增量,将粗的或较大的聚集体颗粒引入滚筒并将它们直接暴露于火焰中,其辐射热 在输入端的燃烧热气体,并且在输入端下游引入更细或更小的聚集体颗粒,并且避免在温度区域直接暴露于火焰和极热气体,这将避免细颗粒过热。 改进的装置包括用于将粗颗粒引入输入鼓端以直接暴露于火焰或最热气体的装置,以及用于将细颗粒或较小颗粒引入装置的较冷区域的装置。

    Recycled asphalt-aggregate process and apparatus

    公开(公告)号:US4142803A

    公开(公告)日:1979-03-06

    申请号:US867700

    申请日:1978-01-09

    CPC classification number: E01C19/1036 E01C2019/1095

    Abstract: In a process for recycling asphalt and aggregate containing composition, the improvement comprises separating the composition into a plurality of portions having different particle sizes, ranging from coarse to fine, introducing the particle portions into different mixing and heating drums, one of the drums being for the coarse particle portion, and one or more additional drums for smaller particle portions, and heating the particles in the respective drums with hot gases of combustion at temperatures below that which will burn the asphalt particles in each of the respective drums.

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