公开(公告)号：US5380082A

公开(公告)日：1995-01-10

申请号：US156431

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: B01F7/00158 ,  E01C19/1036 ,  E01C2019/1086 ,  E01C2019/109

Abstract: An asphalt drum mixer includes a rotating drum within a fixed sleeve which defines an annular chamber, and mixing tips mounted on the drum and in the annular chamber. The mixing tips pass through the hot mix asphalt laying in the bottom of the annular chamber and mix and shear the hot mix asphalt and increase its residence time in the drum mixer. In one preferred embodiment, the mixing tips may comprise curved scoop-like elements which lift the hot mix asphalt higher than conventional paddles and greatly increase residence time of the mix in the drum over conventional paddles. The quality of the mix is thus greatly improved. In another preferred embodiment the mixing tips may comprise curved scoop-like elements having slots which greatly increase sheering of the hot mix asphalt, thereby further improving the quality of the mix.

Abstract translation: 沥青鼓混合器包括在固定套筒内的旋转滚筒，其限定环形室，以及安装在滚筒和环形室中的混合头。 搅拌头通过铺设在环形室底部的热拌沥青，混合和剪切热混沥青，并增加其在搅拌机中的停留时间。 在一个优选实施例中，混合末端可以包括弯曲的勺状元件，其将热混沥青提升得比常规桨更高，并且大大增加了混合物在滚筒中的常规桨的停留时间。 因此，混合物的质量大大提高。 在另一个优选实施例中，混合末端可以包括弯曲的勺状元件，其具有大大增加热混沥青沥青的剪切的槽，从而进一步提高混合物的质量。

公开(公告)号：US5362193A

公开(公告)日：1994-11-08

申请号：US23063

申请日：1993-02-25

Applicant: John Milstead

Inventor： John Milstead

IPC: B65D88/30 ,  E01C19/10 ,  B65G1/00

CPC classification number: E01C19/10 ,  B65D88/30 ,  E01C19/104 ,  Y10S414/132

Abstract: A portable and self-erecting plant for the batch production of asphalt, and wherein the several components of the plant are split into two subassemblies which are initially mounted to the front and rear portions of a roadway transportable main frame. The front subassembly may be lifted to a first temporary position and then moved rearwardly to overlie the rear subassembly. The two subassemblies may then be interconnected to form an operational plant, which may be then lifted to its operating position as a unit. A separate elevator is provided which is also roadway transportable, and the elevator may be pivotally connected to the main frame so that it may be raised to an operative vertical position adjacent the plant.

Abstract translation: 一种用于批量生产沥青的便携式和自立式设备，并且其中工厂的多个部件被分成两个子组件，其最初安装在道路可移动主框架的前部和后部。 前部组件可以被提升到第一临时位置，然后向后移动以覆盖后部子组件。 然后可以将两个子组件互连以形成操作设备，然后可以将其作为一个单元提升到其操作位置。 提供了一种单独的升降机，其也可以进行道路运输，并且电梯可以枢转地连接到主框架，使得其可以升高到与设备相邻的操作垂直位置。

公开(公告)号：US5423606A

公开(公告)日：1995-06-13

申请号：US163894

申请日：1993-12-07

Applicant: John Milstead

Inventor： John Milstead

IPC: E01C19/10 ,  B28C5/46 ,  B28C5/38

CPC classification number: E01C19/1063 ,  E01C19/1004 ,  E01C2019/109 ,  E01C2019/1095

Abstract: A designated amount of recycled asphalt product (RAP) is fed to the pugmill of a batch asphalt plant during the production of hot mix asphalt (HMA) at a controlled rate so as not to overload the pugmill scavenging system. The designated amount of RAP is metered in a RAP weigh hopper, stored temporarily in a RAP holding hopper, and is then fed from the RAP holding hopper to the pugmill at a controlled rate. The feed of RAP to the pugmill, though electronically initiated, is preferably manually or automatically adjustable so as to avoid overloading the pugmill scavenging system while at the same time assuring adequate mixing of the RAP with the virgin aggregate and liquid asphalt. The scavenging system directs vapors removed from the pugmill to the dryer and preferably includes electronically operated dampers connecting the combustion air inlet of the dryer to the pugmill only during the mixing operation and otherwise connecting the combustion air inlet to the ambient atmosphere.

Abstract translation: 在热拌沥青（HMA）生产期间以一定的速率将指定量的回收沥青产品（RAP）供给到批量沥青设备的搅拌机，以免使过筛机清除系统过载。 将指定量的RAP计量在RAP称重料斗中，临时储存在RAP保持料斗中，然后以可控的速率从RAP保持料斗进给到搅拌机。 尽管以电子方式启动，RAP进料到搅拌机，但优选是手动或可自动调整的，以避免过筛釜煤清除系统，同时确保RAP与原始骨料和液体沥青的充分混合。 扫气系统将从搅拌机移除的蒸汽引导到干燥器，并且优选地包括电子操作的阻尼器，其仅在混合操作期间将干燥器的燃烧空气入口连接到搅拌机，并且否则将燃烧空气入口连接到环境大气。

公开(公告)号：US5291876A

公开(公告)日：1994-03-08

申请号：US772426

申请日：1991-10-07

Applicant: John Milstead

Inventor： John Milstead

IPC: E01C19/05 ,  E01C19/45

CPC classification number: E01C19/05

Abstract: An apparatus for feeding preheated aggregate material, such as for the production of asphalt. A feed hopper includes a heater within its interior and positioned adjacent a slotted discharge opening at the lower end of the hopper. A tent-like cover is positioned above the heater to deflect aggregate material from contacting the upper portion of the heater and to transfer heat to the aggregate material in a uniform and efficient manner. The heater may preferably be a gas-fired radiant heater extending lengthwise parallel to and for the full length of the slotted discharge opening. A series of hoppers may be arranged in side-by-side relation and a common conveyor positioned beneath the individual feed conveyors of each hopper to direct the preheated aggregate material to a subsequent processing apparatus, such as a drum mixer or other dryer, used for the production of asphalt.

Abstract translation: 一种用于输送预热骨料的装置，例如用于生产沥青。 进料斗在其内部包括加热器，并且位于料斗下端的开槽排出口附近。 一个帐篷般的盖子位于加热器的上方，以使聚集的材料不会与加热器的上部接触，并以均匀有效的方式将热量转移到聚集体材料上。 加热器可以优选地是沿纵向平行于并且对于开槽排出口的全长延伸的燃气辐射加热器。 一系列料斗可以并排布置并且位于每个料斗的单个进料输送机下方的公共输送机，以将预热的聚集体材料引导到随后的加工设备，例如鼓式搅拌机或其它干燥机，用于 生产沥青。

公开(公告)号：US5433575A

公开(公告)日：1995-07-18

申请号：US289776

申请日：1994-08-12

Applicant: John Milstead

Inventor： John Milstead

IPC: B65D88/30 ,  E01C19/10 ,  B65G1/00

CPC classification number: E01C19/10 ,  B65D88/30 ,  E01C19/104 ,  Y10S414/132

Abstract: Transport and erection of a portable asphalt plant are facilitated by transporting upper and lower subassemblies of the plant to a worksite on a single portable frame towed by a tractor. Once at the worksite, the frame is detached from the tractor and the upper plant subassembly is moved on the frame from a lowered transport position generally beside the lower plant subassembly to an intermediate position directly above the lower plant subassembly. The plant assembly is then completed by attaching the upper plant subassembly to the lower plant subassembly and raising the lower and upper plant subassemblies as a unit to a raised position which is sufficiently high to permit trucks to pass beneath the lower plant subassembly. An elevator is preferably transported to the worksite via another vehicle, then mounted on a pivot axis of the frame, and then pivoted about the pivot axis from a horizontal transport position to an upright operative position.

Abstract translation: 便携式沥青设备的运输和安装通过将工厂的上部和下部子组件运送到由拖拉机牵引的单个便携式框架上的工地来实现。 一旦在工地，框架与拖拉机分离，并且上部工厂子组件在框架上从下部运输位置大体上在下部工厂子组件旁边移动到正下方工厂子组件正上方的中间位置。 然后通过将上部植物子组件附接到下部植物子组件并将下部和上部植物子组件作为单元升高到足够高的升高位置以使卡车通过下部植物子组件下方来完成植物组件。 优选地，电梯经由另一车辆运送到工地，然后安装在框架的枢转轴线上，然后围绕枢转轴线从水平运输位置枢转到直立的操作位置。

公开(公告)号：US5215372A

公开(公告)日：1993-06-01

申请号：US657539

申请日：1991-02-19

Applicant: John Milstead

Inventor： John Milstead

IPC: E01C19/10

CPC classification number: E01C19/1072 ,  E01C19/10

Abstract: An asphaltic mix batch apparatus which comprises a tower which mounts a number of aggregate storage bins, a weigh hopper underlying the storage bins, and a pugmill underlying the weigh hopper. Also, a screen assembly is positioned above the bins for segregating the aggregate by size, and such that the initial bin receives the more fine aggregate and the subsequent bins receive the more coarse aggregate. The initial bin has a relatively wide open top, and it receives a relatively broad gradation of the aggregate from its front to its back, with the front being disproportionately fine and the back being disproportionately coarse. A divider plate is positioned in the initial bin to prevent the gradation from interfering with the free discharge of the aggregate when the associated discharge port is opened, and to thereby provide a more uniform gradation being withdrawn through the discharge port.

Abstract translation: 一种沥青混合料分批装置，其包括安装多个集料储存箱的塔架，存储仓下方的称重料斗和称重料斗下方的搅拌机。 此外，屏幕组件位于料仓上方，用于通过尺寸分离聚集体，并且使得初始料仓接收更细的聚集体，并且随后的料仓接收更粗的聚集体。 初始仓具有相对较宽的开口顶部，并且从前端到后端接收到相对较宽的聚集层，其前端不成比例地很好，而后者不成比例地粗糙。 分隔板位于初始仓中，以防止在相关联的排出口打开时灰分等离子体干扰聚集体的自由排放，从而提供通过排出口排出的更均匀的灰度。

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：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：US5251976A

公开(公告)日：1993-10-12

申请号：US863831

申请日：1992-04-06

Applicant: John Milstead

Inventor： John Milstead

IPC: E01C19/10 ,  B28C7/04

CPC classification number: E01C19/1004 ,  E01C19/1072 ,  E01C2019/1095

Abstract: An asphalt production plant which is adapted to process mixtures of recycled paving and aggregate, and which comprises a rotary drum dryer for heating and drying stone aggregate, and an elevator for conveying the heated and dried aggregate to an elevated discharge location. A batch tower is positioned adjacent the elevator, and the batch tower comprises an aggregate sizing screen which receives and segregates the aggregate by size, and several underlying aggregate storage bins, with each aggregate bin receiving aggregate of predetermined average size from the sizing screen. Also, a recycle bin is positioned between and in alignment with the aggregate bins. A weigh hopper is provided for receiving the aggregate and/or recycle material from the bins, and a pugmill is positioned below the weigh hopper for mixing the material with hot liquid asphalt and then delivering the resulting mix into an underlying truck. A gate is provided for delivering the material from the elevator into either the sizing screen or the recycle bin. In addition, a weigh belt conveyor is provided for delivering the aggregate to the drum dryer at a predetermined feed rate by weight, and a weigh belt conveyor is provided for delivering the recycle material into the elevator at a predetermined feed rate by weight.

Abstract translation: 一种沥青生产设备，其适于处理再循环铺路和骨料的混合物，并且其包括用于加热和干燥石料骨料的旋转滚筒式干燥机，以及用于将加热和干燥的骨料输送到升高的排出位置的电梯。 批量塔位于电梯附近，并且批塔包括聚集尺寸筛，其通过尺寸接收和分离聚集体，以及几个下面的聚集料存储箱，每个聚集料槽从尺寸筛网接收预定平均尺寸的聚集体。 此外，回收箱位于聚集料仓之间并且与聚集料仓对齐。 提供称重料斗以从料仓接收骨料和/或再循环材料，并且将搅拌机放置在称重料斗下方，以将材料与热液体沥青混合，然后将所得混合物输送到下面的卡车中。 提供一个门，用于将材料从电梯运送到上浆筛或再循环箱中。 另外，设置称重带式输送机，用于以预定的重量进给速率将骨料输送到滚筒式干燥器，并提供称重带式输送机，用于以预定的进料速率将回收材料输送到电梯中。