公开(公告)号：WO1995030522A1

公开(公告)日：1995-11-16

申请号：PCT/US1995005410

申请日：1995-05-02

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  MILSTEAD, John

IPC: B28C05/46

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

Abstract: A rotary drum dryer (12) has devices for cooling shielding flights (44) located in the combustion zone of the drum. The devices comprise cooling flights (46) 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 (44) 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 (46) 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 (24) 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（12）具有用于冷却位于滚筒的燃烧区域中的屏蔽层（44）的装置。 这些装置包括与滚筒一起旋转的冷却翼片（46），以从聚集在滚筒下部的骨料中汲取相对少量的原始骨料，并将该聚集体淋浴在屏蔽薄片（44）的外径向表面上 鼓的进一步旋转，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，通过滚筒旋转的大部分，从冷却翼片（46）穿过的屏蔽翼片连续级联，从而提高冷却效率。 冷却翼和屏蔽翼优选地配合以限制或甚至防止材料进入燃烧器火焰（24）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：WO1994016146A1

公开(公告)日：1994-07-21

申请号：PCT/US1993002453

申请日：1993-03-15

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  KEYLON, Gary, R. ,  MAY, James, G.

IPC: E01C19/10

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

Abstract: A drum mixer (10) is disclosed which is useful in the continuous production of asphalt paving composition, and which has provision for the accurate control of the final temperature of the composition being produced. The drum mixer (10) comprises a fixedly mounted cylindrical sleeve (32) disposed in a generally horizontal orientation, and rotating blades (42) for conveying the heated aggregate longitudinally through the interior of the sleeve (32). An opening (54) is provided in the side wall portion of the sleeve (32), and a box-like enclosure (55) covers the opening (54) and mounts a plurality of sensor mounting tubes (64), so as to permit one or more sensors (66) to be positioned at a location within the enclosure (55). The enclosure is located where the blades (42) or mixing action in the sleeve (32) will supply a regular flow of the aggregate into the enclosure (55), and so that the aggregate then slides over the sensors (66). The sensors (66) are thus subjected to a representative portion of the aggregate, and they are protected from both the radiant heat of the burner (27) and the physical abuse of the mixing action.

Abstract translation: 公开了一种鼓式搅拌机（10），其可用于沥青铺路组合物的连续生产，并且其具有精确控制正在生产的组合物的最终温度的规定。 鼓式混合器（10）包括以大致水平的方向设置的固定安装的圆柱形套筒（32）和用于将加热的骨料纵向输送通过套筒（32）的内部的旋转叶片（42）。 在所述套筒（32）的侧壁部分设置有开口（54），并且盒状的壳体（55）覆盖所述开口（54）并安装多个传感器安装管（64），以允许 一个或多个传感器（66）被定位在外壳（55）内的位置处。 所述外壳位于所述套管（32）中的所述叶片（42）或混合作用将提供所述聚集体的规则流动到所述外壳（55）中的位置，并且所述聚集体然后在所述传感器（66）上滑动。 因此，传感器（66）经受聚集体的代表性部分，并且保护其免受燃烧器（27）的辐射热和混合动作的物理滥用。

公开(公告)号：WO1991002846A1

公开(公告)日：1991-03-07

申请号：PCT/US1990004399

申请日：1990-08-06

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  JAKOB, Herbert, E.

IPC: E01C23/06

CPC classification number: E01C23/088 ,  E01C23/065

Abstract: An apparatus (10) is disclosed for the cold, in-place recycling of asphalt paving of an asphalt roadway. The apparatus (10) is self-propelled, and it includes a cylindrical milling drum (32) mounted at a medial location along its longitudinal length and which serves to remove a thickness of the asphalt paving and break the same into particles as the apparatus (10) moves forwardly along the roadway. The particles are lifted (42) to a separating screen (45) which is positioned forwardly of the drum (32), and the particles are thereby separated into a first portion of relatively small particles suitable for recycling and a second portion of oversized particles. The first portion is delivered to the rear end (14) of the apparatus (10) where it is mixed with a suitable liquid additive, and then discharged onto the roadway. A following paver then forms the discharged material into new paving. The second portion of oversized particles is discharged onto the roadway at a location in front of the milling drum (32). Thus the milling drum (32) again contacts the second portion upon forward movement of the apparatus (10), and the drum (32) acts to further crush the particles and cause them to be recycled through the apparatus (10).

公开(公告)号：WO1998018577A1

公开(公告)日：1998-05-07

申请号：PCT/US1997019748

申请日：1997-10-30

Applicant: ASTEC INDUSTRIES, INC. ,  SWANSON, Malcolm, Leland

Inventor： ASTEC INDUSTRIES, INC.

IPC: B09C01/06

CPC classification number: B09C1/06 ,  B09B3/00

Abstract: A method and apparatus for treating contaminated particulate material, such as soil which has been contaminated with petroleum products, to remove the contaminants therefrom is disclosed. The apparatus (10) includes a generally cylindrical, hollow, inclined drum (16) which is adapted to be rotated about its axis (20). The drum (16) has an inlet (34) for contaminated particulate material at its upper end (22), an outlet (36) at its upper end (22) for vaporized contaminants from the particulate material which are entrained in air, an inlet (38) for air is located between the upper end (22) and the lower end (24), and an outlet (42) for clean particulate material at its lower end (24). The apparatus (10) also includes a generally cylindrical fire tube (44) within the drum (16), said fire tube (44) having an axis that is generally parallel to the axis (20) of the drum (16). The apparatus (10) also includes a second stage treatment unit (14) that is in fluid communication with the outlet (36) at the upper end (22) of the drum (16), which second stage treatment unit (14) is adapted to remove vaporized contaminants from the stream of entraining air. In the operation of the method, fuel is supplied to a burner (64) and ambient air is admitted to a combustion chamber (62) in such quantities that the fuel may be burned therein with an excess of air so as to cool the products of combustion produced thereby to a first temperature that is sufficient to volatilize the contaminants in the particulate material without incineration thereof, while the drum (16) is rotated about its axis (20) as contaminated particulate material is admitted to the drum (16) at the upper end (22) thereof. The products of combustion are conducted from the combustion chamber (62) through the fire tube (44), so that heat is transferred from the tube (44) to the particulate material in the drum (16) by radiation. Heated air is introduced to the air inlet (38) of the drum (16) and contributes to heating of the particulate material in the drum (16) by conduction and convection. Clean particulate material is discharged from the drum (16) at the lower end (24) thereof, and vaporized contaminants entrained in air are removed from the drum (16) at the outlet (36) at the upper end (22) thereof. These vaporized contaminants are conveyed to the second state treatment unit (14) where such contaminants are removed from the entraining air.

Abstract translation: 公开了一种处理受污染的颗粒材料（例如被石油产品污染的土壤）以除去污染物的方法和装置。 该设备（10）包括大致圆柱形的中空的倾斜滚筒（16），其适于围绕其轴线（20）旋转。 鼓（16）在其上端（22）上具有用于污染的颗粒材料的入口（34），在其上端（22）处的出口（36），用于来自颗粒材料的汽化的污染物，其被夹带在空气中，入口 （38）位于上端（22）和下端（24）之间，以及用于在其下端（24）处用于清洁颗粒材料的出口（42）。 所述设备（10）还包括在所述滚筒（16）内的大致圆柱形的火管（44），所述火管（44）具有大致平行于所述滚筒（16）的轴线（20）的轴线。 设备（10）还包括第二级处理单元（14），其在所述滚筒（16）的上端（22）处与所述出口（36）流体连通，所述第二级处理单元（14）适于 从夹带空气流中除去蒸发的污染物。 在该方法的操作中，燃料被供应到燃烧器（64），并且环境空气被允许进入燃烧室（62），其量可使燃料在其中燃烧过量的空气，以便冷却产物 由此产生的燃烧产生的第一温度足以使颗粒材料中的污染物挥发而不焚烧，同时当所述污染的颗粒材料被吸入所述滚筒（16）时，所述滚筒（16）围绕其轴线（20）旋转， 其上端（22）。 燃烧产物从燃烧室（62）通过火管（44）传导，使得热量通过辐射从管（44）转移到鼓（16）中的颗粒材料。 加热空气被引入滚筒（16）的空气入口（38），并有助于通过传导和对流来加热滚筒（16）中的颗粒材料。 清洁的颗粒材料在其下端（24）处从鼓（16）排出，并且夹带在空气中的蒸发的污染物在其上端（22）处的出口（36）处从鼓（16）中排出。 这些汽化的污染物被输送到第二状态处理单元（14），其中这种污染物从夹带空气中移除。

公开(公告)号：WO1995024598A1

公开(公告)日：1995-09-14

申请号：PCT/US1995002958

申请日：1995-03-06

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  MILSTEAD, John

IPC: F26B03/00

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

Abstract: A dryer drum coater (110) 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 (216) 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 (122) blower and is thereby incinerated.

Abstract translation: 干燥器鼓式涂布机（110）可以独立于燃烧产物的排放，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它沥青产品如RAP或液体沥青混合时产生的蓝色烟雾优选地从远离涂布机排气产品出口形成的蒸气出口（216）排出并且邻近加热和干燥的聚集体 混合室的入口。 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干燥器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（122）鼓风机的燃烧空气入口，从而被焚化。

公开(公告)号：WO1995024597A1

公开(公告)日：1995-09-14

申请号：PCT/US1995002755

申请日：1995-03-06

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  SWANSON, Malcolm, L.

IPC: F26B03/00

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

Abstract: A dryer drum coater (110, 310) has an internal recirculation cylinder (200, 400) for promoting the recirculation of combustion products so as to entrain and incinerate blue smoke formed when heated and dried virgin aggregate is mixed with other asphaltic products such as RAP and/or liquid asphalt in the dryer drum coater. The recirculation cylinder (200, 400) acts to extend and strengthen natural eddy currents formed during operation of the coater such that combustion product recirculation which would normally extend only in the end area of the flame extends far enough toward the base of the flame to entrain the blue smoke and to draw the blue smoke into the base area of the flame. The cylinder may comprise a refractory lined stainless steel shell (204) or may be formed from tee flights (402) of the type used in the combustion zones of dryer drum coaters.

Abstract translation: 干燥滚筒式涂布机（110,310）具有用于促进燃烧产物的再循环的内部再循环筒（200,400），以便在加热和干燥时形成的蓝色烟雾夹带和焚烧，原始骨料与其他沥青产品如RAP混合 和/或在干燥器鼓式涂布机中的液体沥青。 再循环气缸（200,400）用于延伸和加强在涂布机操作期间形成的天然涡流，使得通常仅在火焰末端区域延伸的燃烧产物再循环远离火焰底部延伸以夹带 蓝色的烟雾，并将蓝色烟雾吸入火焰的基础区域。 圆筒可以包括耐火材料衬里的不锈钢外壳（204），或者可以由在干燥器滚筒涂布机的燃烧区域中使用的类型的三通（402）形成。

公开(公告)号：WO1995014560A1

公开(公告)日：1995-06-01

申请号：PCT/US1994012600

申请日：1994-11-01

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  MILSTEAD, John

IPC: B28C05/14

CPC classification number: B01F7/00158 ,  B01F7/001 ,  E01C19/1036 ,  E01C2019/1086 ,  E01C2019/109

Abstract: An asphalt drum mixer (10) includes a rotating drum (12) within a fixed sleeve (32) which defines an annular chamber (34), and mixing tips (50, 58) mounted on the drum and in the annular chamber. The mixing tips (50, 58) pass through the hot mix asphalt laying in the bottom of the annular chamber (34) and mix and shear the hot mix asphalt and increase its residence time in the drum mixer (10). In one embodiment, the mixing tips may comprise curved scoop-like elements (50) which lift the hot mix asphalt higher than conventional paddles and greatly increase residence time of the mix in the drum (12) over conventional paddles. The quality of the mix is thus greatly improved. In another embodiment the mixing tips may comprise curved scoop-like elements (58) having slots (64) 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（10）包括在固定套筒（32）内的限定环形室（34）的旋转鼓（12），以及安装在滚筒上和环形室中的混合头（50,58）。 搅拌头（50,58）通过铺设在环形室（34）底部的热混沥青，混合和剪切热混沥青，并增加其在鼓式搅拌机（10）中的停留时间。 在一个实施例中，混合末端可以包括弯曲的勺状元件（50），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（12）中的常规桨叶的停留时间。 因此，混合物的质量大大提高。 在另一个实施方案中，混合末端可以包括具有狭槽（64）的弯曲勺状元件（58），其大大增加热混沥青的剪切，从而进一步提高混合物的质量。

公开(公告)号：WO1994013891A1

公开(公告)日：1994-06-23

申请号：PCT/US1993012176

申请日：1993-12-10

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  CAMPBELL, Thomas, R.

IPC: E02F05/08

CPC classification number: E02F3/188 ,  E02F3/20 ,  E02F3/241 ,  E02F3/246 ,  E02F7/02

Abstract: A self-propelled apparatus for digging a shallow trench along one side of a roadway is disclosed, and which is useful as part of a roadway widening operation. The apparatus comprises a cutter drum (30) mounted to one side of the chassis of the apparatus, and a conveyor belt (70) is mounted to the same side of the chassis with an inlet end (71) positioned immediately adjacent the cutter drum (30) and an elevated outlet end (72) positioned beyond the forward end of the chassis. An enclosure (32) surrounds the cutter drum (30) so that the drum may be rotated in a downwardly cutting direction, and the loosened soil or other material may be lifted and guided around the drum and deposited onto the conveyor. The cutter drum (30) includes one or more extensions which may be coaxially mounted thereto, so as to permit the width of the cutter drum (30) and thus the width of the resulting trench to be selectively varied.

Abstract translation: 公开了一种用于在巷道的一侧挖掘浅沟槽的自走式装置，其可用作道路加宽操作的一部分。 该设备包括安装在设备底盘一侧的切割滚筒（30），并且传送带（70）安装在底盘的同一侧，其中入口端（71）紧邻切割滚筒（71） 30）和位于底架前端之外的升高的出口端（72）。 围绕切割器滚筒（30）的外壳（32）使得滚筒可沿向下切割的方向旋转，并且松动的土壤或其它材料可被提升并围绕滚筒引导并且沉积到输送机上。 切割滚筒（30）包括可以同轴地安装到其上的一个或多个延伸部，以便允许切割滚筒（30）的宽度，并且因此所选择的沟槽的宽度被选择性地变化。

公开(公告)号：WO1993022504A1

公开(公告)日：1993-11-11

申请号：PCT/US1993004249

申请日：1993-05-05

Applicant: ASTEC INDUSTRIES, INC. ,  CAMPBELL, Thomas, R.

Inventor： ASTEC INDUSTRIES, INC.

IPC: E01C19/48

CPC classification number: E01C19/488 ,  E01C2301/10

Abstract: An asphalt finishing screed (22) is disclosed which is adapted to achieve essentially complete compaction of the asphalt mix over a range of finished mat thicknesses. The screed (22) comprises a vertically adjustable strike off bar (32), a rotary compactor (35) positioned immediately behind the bar, and a screed plate (50) positioned immediately behind the rotary compactor (35). In one preferred embodiment, the rotary compactor (35) comprises a rotor which includes a plurality of freely rotating rollers (44) about the peripheral surface thereof. In operation, the adjustable strike off bar (32) is set at an elevation so as to meter the material to the rotary compactor (35) and to achieve the desired compaction for the particular thickness of the finished mat being laid. The rotary compactor (35) then impacts the mat in an essentially vertical direction and so as to achieve complete compaction of the mix.

Abstract translation: 公开了一种沥青整理熨平板（22），其适于在一定范围的成品垫厚度上实现沥青混合料的基本上完全的压实。 熨平板（22）包括垂直调节的脱扣杆（32），位于杆后面的旋转压实机（35），以及紧邻旋转压实机（35）定位的刮板（50）。 在一个优选实施例中，旋转压实机（35）包括转子，转子包括围绕其周向表面的多个自由旋转的辊（44）。 在操作中，可调节的脱扣杆（32）设置在高度上，以便将材料计量到旋转压实机（35），并且为被铺设的成品垫的特定厚度实现所需的压实。 旋转压实机（35）然后在基本上垂直的方向上冲击垫子，以便实现混合物的完全压实。

公开(公告)号：WO1992011983A1

公开(公告)日：1992-07-23

申请号：PCT/US1991009814

申请日：1991-12-27

Applicant: ASTEC INDUSTRIES, INC.

Inventor： ASTEC INDUSTRIES, INC. ,  BROCK, J., Don ,  MIZE, Erbie, Gail ,  SWANSON, Malcom

IPC: B28C05/46

CPC classification number: F26B21/02 ,  E01C19/1036 ,  E01C19/1063 ,  E01C2019/109 ,  F26B11/028 ,  F26B23/02

Abstract: A rotary heating device (20) having reduced NOx emissions including a recirculation system for recirculating gases downstream of a baghouse (12) to the heat source, such as a flame burner (28), and to a quenching ring (40) located at the end of a refractory combustion chamber (32) surrounding the burner flame (30). The addition of the recirculating gas to the burner (28) provides a cooler, turbulent flame (30). The addition of the recirculating gas via the quenching ring (40) to the end of the flame (30) reduces the length and temperature of the flame (30). The cooler, shorter, turbulent flame (30) provides sufficient heat for drying aggregate or for producing asphalt-aggregate mix while decreasing the production of NOx.

Abstract translation: 一种具有减少的NOx排放的旋转加热装置（20），包括用于将袋室（12）下游的气体再循环到诸如火焰燃烧器（28）的热源的再循环系统，以及位于该位置处的淬火环（40） 围绕燃烧器火焰（30）的耐火燃烧室（32）的端部。 将再循环气体添加到燃烧器（28）中提供了较冷的湍流火焰（30）。 通过淬火环（40）将再循环气体添加到火焰（30）的末端，减少火焰（30）的长度和温度。 较冷，较短的湍流火焰（30）提供足够的热量用于干燥骨料或生产沥青骨料混合物同时减少NOx的生产。