公开(公告)号：US5551166A

公开(公告)日：1996-09-03

申请号：US206879

申请日：1994-03-07

Applicant: John Milstead

Inventor： John Milstead

IPC: E01C19/08 ,  E01C19/10 ,  F26B3/18 ,  F26B11/02 ,  F26B11/04 ,  F26B23/02 ,  F26B3/00

CPC classification number: E01C19/1063 ,  E01C19/1036 ,  F26B11/028 ,  F26B11/0413 ,  E01C2019/1086 ,  E01C2019/109

Abstract: A dryer drum coater reduces blue smoke emissions by evacuating the blue smoke from the dryer drum coater independently of the exhaust of combustion products. The blue smoke, produced when heated and dried aggregate is mixed with other asphaltic products such as RAP or liquid asphalt, is preferably evacuated from a vapor outlet formed remote from the exhaust products outlet of the coater and adjacent the heated and dried aggregate inlet of the mixing chamber. Evacuating the blue smoke at this location obviates the need to separate the blue smoke from the combustion products and also prevents the introduction of excess oxygen into the combustion zone of the dryer drum coater. In a particularly preferred arrangement, the evacuated blue smoke is fed directly to the combustion air inlet of the coater's burner blower and is thereby incinerated.

Abstract translation: 烘干机滚筒式涂布机可以独立于燃烧产物的排气，从干燥器鼓式涂布机排出蓝色烟雾来减少蓝色烟雾排放。 当加热和干燥的骨料与其他沥青产品如RAP或液体沥青混合时产生的蓝色烟雾优选从远离涂布机排气产品出口形成的蒸气出口抽出并且邻近加热干燥的聚合物入口 混合室。 在该位置排出蓝色烟雾，避免了将蓝色烟雾与燃烧产物分开的需要，并且还防止了多余的氧气进入烘缸转鼓式涂布机的燃烧区域。 在特别优选的布置中，抽空的蓝色烟雾被直接供给到涂布机的燃烧器鼓风机的燃烧空气入口，从而被焚化。

公开(公告)号：US5513443A

公开(公告)日：1996-05-07

申请号：US372766

申请日：1995-01-13

Applicant: Robert J. Hatfield

Inventor： Robert J. Hatfield

IPC: E01C19/05 ,  E01C19/10 ,  F26B11/04 ,  F26B25/00 ,  G11B5/02

CPC classification number: F26B11/0413 ,  E01C19/05 ,  E01C19/1036 ,  E01C2019/1086 ,  E01C2019/109

Abstract: A dryer for use in an asphalt plant for heating and drying virgin aggregate and also pre-heating reclaimed asphalt products (RAP). A drying drum cylinder having a burner at one end heats and dries virgin aggregate traveling therethrough. A second cylinder near the burner surrounds the drying drum and creates an annular cavity. RAP is introduced and travels through the annular cavity and exits adjacent the drying drum aggregate exit opening. Heat given off by the drying drum increases the temperature within the annular cavity and heats the RAP traveling therethrough. Heated aggregate and RAP first come in contact with one another after exiting the annular cavity and the drying drum and are, thereafter, delivered to a mixing drum.

Abstract translation: 用于沥青设备中用于加热和干燥原始骨料以及预热再生沥青产品（RAP）的干燥器。 在一端具有燃烧器的干燥鼓筒加热并干燥穿过其中的原始聚集体。 在燃烧器附近的第二个气缸围绕干燥鼓并产生一个环形空腔。 RAP被引入并穿过环形空腔并且邻近干燥鼓集合体出口开口离开。 由干燥鼓发出的热量增加环形空腔内的温度，并加热穿过其中的RAP。 加热的聚集体和RAP首先在离开环形空腔和干燥滚筒之后彼此接触，然后被输送到混合滚筒。

公开(公告)号：US5480226A

公开(公告)日：1996-01-02

申请号：US239767

申请日：1994-05-09

Applicant: John Milstead

Inventor： John Milstead

IPC: F26B17/20 ,  B28C5/46 ,  E01C19/10 ,  F26B11/04 ,  F27B7/16 ,  F27B7/38

CPC classification number: E01C19/1036 ,  F26B11/0477 ,  E01C2019/1086 ,  E01C2019/109 ,  E01C2019/1095

Abstract: A rotary drum dryer has devices for cooling shielding flights located in the combustion zone of the drum. The devices comprise cooling flights which rotate with the drum to scoop up relatively small amounts of virgin aggregate from aggregate accumulated in the lower portion of the drum and to shower this aggregate over the outer radial surface of the shielding flights upon further rotation of the drum, thereby cooling the shielding flights without substantially decreasing the mean temperature of the aggregate. Cooling efficiency is enhanced by the continuous cascading of fresh aggregate over the shielding flights from the cooling flights through a substantial portion of the drum's rotation. The cooling flights and shielding flights preferably cooperate to limit or even prevent the showering of materials into the burner flame and thus inhibit burner flame quenching and accompanying emissions. Particularly preferred cooling flights take the form of auxiliary flights which can be easily adapted to existing shielding flight designs.

Abstract translation: 旋转滚筒式干燥器具有用于冷却位于滚筒的燃烧区域中的屏蔽层的装置。 这些装置包括与滚筒一起旋转的冷却翼片，以便从聚集在滚筒下部的骨料中汲取相对较少量的原始骨料，并在滚筒进一步转动时将该骨料淋浴到屏蔽层的外径向表面上， 从而冷却屏蔽飞行而基本上不降低聚集体的平均温度。 通过连续级联新鲜骨料，通过滚筒旋转的很大部分从冷却片穿过的屏蔽飞行板，可以提高冷却效率。 冷却翼和遮蔽翼优选地配合以限制或甚至防止材料进入燃烧器火焰中并因此阻止燃烧器火焰熄灭和伴随的排放。 特别优选的冷却飞行采取辅助飞行的形式，其可以容易地适应现有的屏蔽飞行设计。

公开(公告)号：US5380084A

公开(公告)日：1995-01-10

申请号：US156436

申请日：1993-11-23

Applicant: John Milstead

Inventor： John Milstead

IPC: E01C19/02 ,  B01F7/00 ,  B01F15/00 ,  B28C5/14 ,  B28C5/46 ,  E01C19/10

CPC classification number: B01F7/0025 ,  E01C19/1036 ,  E01C2019/1086 ,  E01C2019/109 ,  E01C2019/1095

Abstract: A drum mixer for heating and drying stone aggregate as part of a process of continuous production of asphalt paving composition, the drum mixer including: an elongate hollow rotatable drum having a length and an outer surface, the elongate hollow rotatable drum defining a central axis, a sleeve having an inner surface, the sleeve being mounted coaxially with the elongate hollow rotatable drum about the central axis and around at least a portion of the length of the elongate hollow rotatable drum and so as to define an annular chamber having an entire distance between the outer surface of the elongate hollow rotatable drum and the inner surface of the sleeve, and structure for mixing hot mix asphalt in the annular chamber including rake flights mounted on the outer surface of the elongate hollow rotatable drum and in the annular chamber including scouring structure for lifting hot mix asphalt up from a lower portion of the annular chamber along the inner surface of the sleeve through the annular chamber and onto an upper portion of the outer surface of the elongate hollow rotatable drum, the scouring structure including a plurality of shaped scouring fingers extending radially toward the outer surface of the elongate hollow rotatable drum so as to break-up hot mix asphalt and allow hot mix asphalt to fall through the rake flights and onto the upper portion of the outer surface of the elongate hollow rotatable drum, thereby scouring the outer surface of the elongate hollow rotatable drum.

Abstract translation: 一种用于加热和干燥石料骨料的鼓式混合器，作为连续生产沥青铺路组合物的方法的一部分，该鼓式搅拌机包括：具有长度和外表面的细长空心可旋转滚筒，该细长中空可旋转滚筒限定中心轴线， 具有内表面的套筒，所述套筒与所述细长的中空可旋转滚筒围绕所述中心轴线同轴地安装并且围绕所述细长空心可旋转滚筒的长度的至少一部分，并且限定环形室，所述环形室具有 细长中空可旋转滚筒的外表面和套筒的内表面，以及用于在环形室中混合热混沥青的结构，其包括安装在细长中空可旋转滚筒的外表面上的耙角和包括冲刷结构的环形室 用于从环形室的下部沿着套筒的内表面向上提升热混沥青 环形室并且延伸到细长中空可旋转滚筒的外表面的上部上，冲刷结构包括多个成形的精练指，其径向延伸到细长的中空可旋转滚筒的外表面，以便分解热混沥青 并且允许热混沥青通过耙条飞行并落到细长中空可旋转滚筒的外表面的上部上，从而冲洗细长空心可旋转滚筒的外表面。

公开(公告)号：US5188299A

公开(公告)日：1993-02-23

申请号：US772488

申请日：1991-10-07

Applicant: Arthur N. Hendrickson ,  Lawrence C. Hanlon ,  Russell W. Anderson

Inventor： Arthur N. Hendrickson ,  Lawrence C. Hanlon ,  Russell W. Anderson

IPC: C10C3/00 ,  E01C19/10

CPC classification number: E01C19/1036 ,  E01C2019/109

Abstract: Apparatus and method for processing asphalt material to be recycled by introducing used asphalt material from the field in relatively large pieces, as received from the field, into one end of a cage-like array of tubular breaker members while simultaneously heating the tubular breaker members from the other end of the cage-like array and rotating the cage-like array about a tilted central axis of rotation to tumble the material within the cage-like array and reduce the size of the pieces of material to a desired aggregate size within a mass of material moving toward the other end of the cage-like array, the tubular breaker members being spaced apart circumferentially such that only the desired aggregate-sized pieces in the mass of material pass radially out of the cage-like array for delivery and reuse.

公开(公告)号：US4797002A

公开(公告)日：1989-01-10

申请号：US877120

申请日：1986-06-23

Applicant: Ronald E. Heap

Inventor： Ronald E. Heap

IPC: E01C19/10 ,  B28C5/46

CPC classification number: E01C19/1036 ,  E01C2019/1086

Abstract: A drum mixer asphalt plant is provided with a rotatable cylinder having an internal passageway where the aggregates and asphalt are mixed to produce an asphaltic composition. In a first zone within the mixer, aggregates are heated and dried by heat radiation and the stream of hot gases produced by a burner flame. In a second zone within the mixer, liquid asphalt is mixed with the aggregates. An exhaust tube is disposed within the passageway and extends from the output end of the drum mixer into the first zone to remove the hot gases to prevent degradation of the asphalt. Thus, the second zone wherein the liquid asphalt is mixed with the aggregate is isolated from the hot gases used for heating and drying. Recycle asphalt material may be added in both the first and second zones of the mixer drum.

Abstract translation: 鼓式搅拌机沥青设备设置有具有内部通道的可旋转圆柱体，其中聚集体和沥青混合以产生沥青组合物。 在混合器内的第一区域中，聚集体通过热辐射和由燃烧器火焰产生的热气流加热和干燥。 在混合器内的第二区域中，液体沥青与聚集体混合。 排气管设置在通道内并从鼓式混合器的输出端延伸到第一区域以除去热气体以防止沥青的降解。 因此，液体沥青与骨料混合的第二区域与用于加热和干燥的热气体分离。 回收沥青材料可以加入到混合器鼓的第一和第二区域中。

公开(公告)号：US4787938A

公开(公告)日：1988-11-29

申请号：US879996

申请日：1986-06-30

Applicant: Michael R. Hawkins

Inventor： Michael R. Hawkins

IPC: C08L95/00 ,  E01C19/10 ,  C09D3/24

CPC classification number: E01C19/1072 ,  C08L95/00 ,  E01C19/1036 ,  E01C2019/109

Abstract: A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercurrent relation. In a first zone within the cylinder 10, aggregates are heated and dried by heat radiation and a hot gas stream generated at a burner head 46 of a combustion assembly 40. In a second zone within the drum cylinder 10 isolated from the burner flame and hot gas stream by the combustion assembly 40, liquid asphalt is sprayed from an injection tube 76 to mix with aggregate materials. A recycle feed assembly 60 delivers recycle asphalt material to the second zone also for mixing with the aggregate and liquid asphalt.

Abstract translation: 鼓式搅拌机沥青设备设置有可旋转气缸10，其中混合原始骨料，再循环材料和液体沥青以产生沥青组合物，并且用于加热和干燥材料的热气流以逆流关系流动。 在气缸10内的第一区域中，聚集体通过热辐射和在燃烧组件40的燃烧器头部46处产生的热气流被加热和干燥。在鼓气缸10内的隔离燃烧器火焰和热的第二区域 通过燃烧组件40的气流，液体沥青从注射管76喷射以与骨料材料混合。 再循环进料组件60将循环沥青材料输送到第二区域，也用于与骨料和液体沥青混合。

公开(公告)号：US4706893A

公开(公告)日：1987-11-17

申请号：US882475

申请日：1986-07-07

Applicant: James D. Brock

Inventor： James D. Brock

IPC: E01C19/10 ,  B02C19/12

CPC classification number: E01C19/1068 ,  E01C19/1036 ,  E01C2019/1095

Abstract: A method and apparatus for recycling asphalt shingles in an asphalt plant which heats and dries aggregate and mixes the heated and dried aggregate with liquid asphalt to form an asphalt paving composition. The shingles are comminuted to particles of a size which can be easily flowed and metered, and the shingle particles are introduced into the asphalt plant such that they are heated to melt the asphalt in the shingle particles. The aggregate, heated shingle particles, and liquid asphalt are thoroughly mixed to form an asphalt paving composition.

Abstract translation: 一种用于在沥青设备中回收沥青瓦的方法和设备，其加热和干燥骨料并将加热和干燥的骨料与液体沥青混合以形成沥青铺路组合物。 木瓦被粉碎成可以容易地流动和计量的尺寸的颗粒，并且将木瓦颗粒引入沥青设备中，使得它们被加热以使木瓦中的沥青熔化。 将聚集的，加热的木瓦颗粒和液体沥青充分混合以形成沥青铺路组合物。

公开(公告)号：US4619550A

公开(公告)日：1986-10-28

申请号：US658122

申请日：1984-10-05

Applicant: Morris R. Jeppson

Inventor： Morris R. Jeppson

IPC: E01C19/10 ,  E01C23/06 ,  E01C23/14 ,  E01C19/18

CPC classification number: E01C23/065 ,  E01C19/1004 ,  E01C19/1036 ,  E01C2019/1095

Abstract: Fragmented old asphaltic concrete or the like is recycled into new hot-mix by temporarily separating larger pieces from the smaller fragments, generating heat internally within the large pieces with penetrating microwave energy, separately heating the smaller fragments by exposure to hot gas, and then recombining and remixing the separately heated components. The old concrete can be heated very rapidly, highly uniformly and economically while avoiding asphalt degradation and pollution problems that can be caused by exposure to extreme high temperature and while avoiding the relatively high costs of heating the entire volume with microwave energy. Sorting, heating and mixing apparatus (11, 11a) embodying the invention may be made transportable to a site at or near a repaving operation or may be travelable along a roadbed to pick up old concrete and deposit new hot-mix or may be integrated into a fixed hot-mix plant (73, 73a, 73b) to enable, among other modes of operation, production of hot-mix wholly from old reclaimed concrete or production of hot-mix from both old and new materials in any desired proportions.

Abstract translation: 通过临时分离更大的碎片从较小的碎片中分离出较大碎片，通过穿透微波能量在大块内部产生热量，通过暴露于热气体单独加热较小的碎片，然后重新组合，将碎片的旧沥青混凝土等再循环到新的热混合物中 并重新混合单独加热的部件。 旧混凝土可以非常快速，高度均匀和经济地加热，同时避免沥青降解和暴露于极高温下可能引起的污染问题，同时避免用微波能量加热整个体积的相对较高的成本。 实施本发明的分拣，加热和混合设备（11,11a）可以被运送到位于或在其附近操作的位置，或者可以沿着路基行驶以拾起旧的混凝土并沉积新的热混合物，或者可以将其整合到 一种固定的热混合设备（73,73a，73b），使得除了其它的操作模式之外，还可以以旧的再生混凝土生产热混合物，或以任何所需的比例从旧材料和新材料生产热混合物。

公开(公告)号：US4555182A

公开(公告)日：1985-11-26

申请号：US634591

申请日：1984-07-26

Applicant: Robert L. Mendenhall

Inventor： Robert L. Mendenhall

IPC: E01C19/10 ,  B28C5/46

CPC classification number: E01C19/1036 ,  E01C2019/109

Abstract: An improved process for recycling asphaltic concrete comprises introducing asphaltic concrete particles at one end of an elongated rotating drum while supplying flame and hot gases of combustion to the drum at the opposite end, and introducing virgin aggregate into the drum intermediate the two ends. The asphaltic concrete is heated as it travels along a portion of the length of the drum and is recovered just prior to reaching the position along the drum length at which the aggregate is introduced. The aggregate is heated as it travels toward the end of the drum at which the flame and hot gases are introduced. Heated aggregate may be returned to the drum for further heating, and may be directed to the opposite drum end and mixed with the asphaltic concrete in a section of the drum.

Abstract translation: 改进沥青混凝土回收方法包括在细长旋转滚筒的一端引入沥青混凝土颗粒，同时在相对端向鼓中提供火焰和热气体，并将原始聚集体引入到两端中间的滚筒中。 沥青混凝土沿着滚筒长度的一部分行进时被加热，并且在达到聚合物引入的滚筒长度的位置之前被回收。 聚集体在朝向鼓的末端行进时被加热，在该端部处引入火焰和热气体。 加热的骨料可以返回到滚筒进一步加热，并且可以被引导到相对的鼓端并与滚筒的一部分中的沥青混凝土混合。