CN110700043A - Double-differential three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment - Google Patents
Double-differential three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment Download PDFInfo
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- CN110700043A CN110700043A CN201911105200.2A CN201911105200A CN110700043A CN 110700043 A CN110700043 A CN 110700043A CN 201911105200 A CN201911105200 A CN 201911105200A CN 110700043 A CN110700043 A CN 110700043A
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- 238000003756 stirring Methods 0.000 title claims abstract description 220
- 239000010426 asphalt Substances 0.000 title claims abstract description 43
- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 238000012423 maintenance Methods 0.000 title claims abstract description 10
- 239000011229 interlayer Substances 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 28
- 238000005096 rolling process Methods 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 24
- 230000009471 action Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
- E01C19/1045—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers the mixture being discharged continuously
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a double differential motion three horizontal shaft type asphalt mixture stirring roller and road maintenance equipment, which comprise a first side stirring shaft, a second side stirring shaft, an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder can rotate relatively; the outer cylinder is sleeved outside the inner cylinder and forms an interlayer space with the outer wall of the inner cylinder; the first side stirring shaft and the second side stirring shaft are arranged in an interlayer between the inner cylinder and the outer cylinder and are respectively positioned at two sides of the inner cylinder, and central axes of the first side stirring shaft and the inner cylinder and central axes of the second side stirring shaft and the inner cylinder are parallel to each other; stirring shaft blades are respectively arranged on the first side stirring shaft and the second side stirring shaft; the inner wall of the inner cylinder is provided with drying and heating blades, and the outer wall of the inner cylinder is provided with inner cylinder stirring blades which are arranged spirally; the rotating direction of the first side stirring shaft is the same as that of the inner cylinder, and the rotating direction of the second side stirring shaft is opposite to that of the inner cylinder. The differential stirring between the stirring shaft and the inner cylinder enhances the stirring capacity of the roller and enables the mixture to be stirred more uniformly.
Description
Technical Field
The invention belongs to the technical field of road maintenance equipment, and relates to a double-differential-motion three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment.
Background
With the development of society, on one hand, the economy is greatly improved, and on the other hand, the energy and environmental problems are increasingly prominent, in order to solve the contradiction, all trades seek solutions, and as engineering machinery industry which is one of the important national development industries, especially the road construction and maintenance industry, the solution is to develop a novel ~ continuous asphalt mixture stirring device.
Continuous double-roller asphalt mixing equipment is widely applied abroad, but in China, the continuous asphalt mixture mixing equipment is researched late, and cannot be put into the market due to the problems of raw materials and the like. In recent years, with the development of environmental problems, researchers have been investing themselves in continuous asphalt mixing equipment with excellent conditions. The mixing performance of the continuous asphalt mixing plant is not optimal because the mixing duration of the plant is not guaranteed, which leads to quality problems of the mix.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a double-differential three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment, so as to improve the stirring capacity of the asphalt mixture stirring roller.
It is a well-known fact that "double horizontal shaft" stirring is more excellent than "single horizontal shaft" stirring in a mixing and stirring apparatus for construction materials. Therefore, the double-horizontal-shaft stirring is mostly used in the engineering field at home and abroad, and the mature degree of the double-horizontal-shaft stirring technology and the stability and reliability of the stirring quality are good, so that the double-horizontal-shaft stirring and the three-horizontal-shaft stirring are better in stirring performance compared with the double-horizontal-shaft stirring.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the first aspect provides a double differential three-horizontal-shaft asphalt mixture stirring roller which comprises a first side stirring shaft, a second side stirring shaft, an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder can rotate relatively;
the outer cylinder is sleeved outside the inner cylinder and forms an interlayer space with the outer wall of the inner cylinder; the central shaft of the inner cylinder is obliquely arranged, so that a high end and a low end are formed at two ends of the inner cylinder and the outer cylinder; the first side stirring shaft and the second side stirring shaft are arranged in an interlayer between the inner cylinder and the outer cylinder and are respectively positioned on two sides of the inner cylinder, and the central axes of the first side stirring shaft and the inner cylinder and the central axes of the second side stirring shaft and the inner cylinder are parallel to each other; stirring shaft blades are respectively arranged on the first side stirring shaft and the second side stirring shaft;
the interlayer comprises an annular area, a first area for arranging a first side stirring shaft and a second area for arranging a second side stirring shaft;
the high end of the inner cylinder is an open aggregate inlet, and the cylinder wall at the low end of the inner cylinder is provided with a discharge opening which penetrates through the interlayer space inside and outside the inner cylinder; the inner wall of the inner cylinder is provided with drying and heating blades, and the outer wall of the inner cylinder is provided with inner cylinder stirring blades which are arranged spirally;
a feed inlet and a finished product outlet which are communicated with the interlayer space are formed in the wall of the outer barrel, and the feed inlet is positioned above the first side stirring shaft and is close to the lower end of the outer barrel; the finished product material outlet is positioned at the high end of the outer cylinder and is close to the second side of the stirring shaft;
a discharging blade is arranged on the outer wall of the inner cylinder at a position corresponding to the finished product outlet;
the rotating direction of the first side stirring shaft is the same as that of the inner cylinder, and the rotating direction of the second side stirring shaft is opposite to that of the inner cylinder.
In some embodiments, the diameters of the first side stirring shaft and the second side stirring shaft are similar, and the diameter ratio of the outer diameter of the inner cylinder to the diameters of the first side stirring shaft and the second side stirring shaft is 2 ~ 9;
the ratio of the number of rows of stirring blades on the first side stirring shaft and the second side stirring shaft on the inner cylinder is defined as a differential ratio, the differential ratio is a non-integer, and the rotating speed ratio of the inner cylinder to the first side stirring shaft and the second side stirring shaft is equal to the differential ratio.
Furthermore, the number of rows of stirring blades on the inner cylinder is fifteen, the number of rows of stirring blades on the first side stirring shaft and the second side stirring shaft is four, and the differential ratio is equal to 3.75.
In some embodiments, the included angle α between the axes of the first side stirring shaft and the second side stirring shaft and the connecting line of the axes of the inner barrel is 100 ° ~ 140 °, preferably 120 °.
In some embodiments, the inner cylinder stirring blades on the inner cylinder are spirally arranged from the lower end to the higher end, and the axial included angle between the inner cylinder stirring blades and the inner cylinder is 10 degrees, ~ 45 degrees;
the stirring shaft blades on the first side stirring shaft and the second side stirring shaft are spirally arranged from the lower end to the higher end, and the spiral directions are opposite; the axial included angle of the stirring shaft blades is 20-45 degrees.
In some embodiments, the agitator blades are disposed in a position intermediate the respective two rows of inner drum agitator blades.
In some embodiments, the included angle between the central axis of the inner cylinder and the horizontal plane is 5-10 degrees.
Further, in some embodiments, the feed inlet is provided in plurality, including a RAP inlet, a pitch inlet, and a powder inlet.
In some embodiments, the double differential three-horizontal-shaft asphalt mixture stirring drum further includes rolling rings, the rolling rings are respectively disposed in the regions where the two ends of the inner cylinder are exposed outside the outer cylinder, the rolling rings are respectively disposed in the regions where the first side stirring shaft and the second side stirring shaft are exposed outside the outer cylinder, and the inner cylinder, the first side stirring shaft and the second side stirring shaft are rotated relative to the outer cylinder through the rotation of the rolling rings.
In a second aspect, the road maintenance equipment comprises the double differential three horizontal shaft type asphalt mixture stirring roller.
Has the advantages that: the speed ratio of the inner cylinder to the stirring shaft is equal to the value of differential ratio, the stirring shaft close to the old material inlet rotates along the direction of the material entering the interlayer under the action of a driving system, the RAP material, the asphalt and the powder are pre-stirred, the rotation direction of the inner cylinder is the same as that of the stirring shaft on the first side, and the rotation direction of the stirring shaft on the second side is opposite to that of the stirring shaft on the first side. The structural combination can bear the processing requirement of the asphalt mixture.
Drawings
FIG. 1 is a perspective view of a double differential three horizontal axis asphalt mixing drum of an embodiment;
FIG. 2 is a view of the double differential three horizontal shaft type asphalt mixing drum of the embodiment with the outer cylinder removed;
FIG. 3 is a top view of the dual differential three horizontal axis asphalt mixing drum of the embodiment with the outer drum removed;
FIG. 4 is a cross-sectional view of a dual differential three horizontal axis asphalt mixing drum of an embodiment;
in the figure: the device comprises an outer barrel 1, a rolling ring 2, an aggregate inlet 3, a finished product outlet 4, a first side stirring shaft 5 and a second side stirring shaft 6; an RAP material inlet 7, an asphalt inlet 8 and a powder inlet 9; stirring shaft blade 10, inner cylinder stirring blade 11, inner cylinder 12, stoving heating blade 13, discharge blade 14, discharge opening 15, intermediate layer 16: a first region 16-1, a second region 16-2, and an annular region 16-3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Example 1
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a double differential three horizontal shaft type asphalt mixture stirring roller comprises a first side stirring shaft 5, a second side stirring shaft 6, an inner cylinder 12 and an outer cylinder 1 which can rotate relatively;
as shown in fig. 1 and 4, the outer cylinder 1 is sleeved outside the inner cylinder 12 and forms an interlayer 16 space with the outer wall of the inner cylinder 12; the central axis of the inner cylinder 12 is obliquely arranged, so that a high end and a low end are formed at two ends of the inner cylinder and the outer cylinder; the first side stirring shaft 5 and the second side stirring shaft 6 are arranged in an interlayer 16 between the inner cylinder 12 and the outer cylinder 1 and are respectively positioned at two sides of the inner cylinder 12, and the central axes of the first side stirring shaft 5 and the inner cylinder and the central axes of the second side stirring shaft 6 are parallel to each other; the first side stirring shaft 5 and the second side stirring shaft 6 are respectively provided with stirring shaft blades 10;
as shown in fig. 4, the interlayer 16 comprises an annular region 16-3, a first region 16-1 for arranging the first side stirring shaft 5, and a second region 16-2 for arranging the second side stirring shaft 6;
as shown in fig. 1, 2 and 3, the upper end of the inner cylinder 12 is an open aggregate inlet 3, and the lower end of the inner cylinder 12 is a combustion flame inlet; a discharge opening 15 which penetrates through the interlayer space between the inner part and the outer part of the inner cylinder is arranged on the lower end cylinder wall of the inner cylinder 12; the inner wall of the inner cylinder 12 is provided with a drying and heating blade 13, and the outer wall of the inner cylinder 12 is provided with inner cylinder stirring blades 11 which are arranged in a spiral shape;
a feed inlet and a finished product outlet 4 which are communicated with the interlayer space are formed in the wall of the outer barrel 1, and the feed inlet is positioned above the first side stirring shaft 5 and close to the lower end of the outer barrel 1; the finished product outlet 4 is positioned at the high end of the outer cylinder 1 and is close to the second side stirring shaft 6;
as shown in fig. 3, a ring of discharging vanes 14 is arranged on the outer wall of the inner cylinder 12 at a position corresponding to the finished product outlet 4;
as shown in fig. 4, the rotation direction of the first side stirring shaft 5 is the same as the rotation direction of the inner cylinder 12, and the first side stirring shaft rotates along the direction of the material entering the interlayer; the rotation direction of the second side stirring shaft 6 is opposite to the rotation direction of the inner cylinder 12.
In some embodiments, as shown in fig. 1, 2, 3, and 4, the diameters of the first side stirring shaft 5 and the second side stirring shaft 6 are the same, and the diameter ratio of the outer diameter of the inner cylinder 12 to the diameters of the first side stirring shaft 5 and the second side stirring shaft 6 is 2 ~ 9;
the ratio of the number of rows of the stirring blades 10 on the first side stirring shaft 5 and the second side stirring shaft 6 of the inner cylinder stirring blades 11 on the inner cylinder 12 is defined as a differential ratio, the differential ratio is a non-integer, and the rotation speed ratio of the inner cylinder 12 to the first side stirring shaft 5 and the second side stirring shaft 6 is equal to the differential ratio.
In some embodiments, as shown in fig. 2 and 3, it is preferable that the number of rows of the inner drum stirring blades 11 on the inner drum 12 is fifteen, the number of rows of the stirring blades 10 on the first side stirring shaft 5 and the second side stirring shaft 6 is four, and the differential ratio is equal to 3.75.
In some embodiments, as shown in fig. 4, an angle α between a line connecting axes of the first side stirring shaft 5 and the second side stirring shaft 6 and an axis of the inner cylinder 12 is 100 ° ~ 140 °, and in this embodiment, 120 ° is preferred.
In some embodiments, as shown in fig. 2 and 3, the inner cylinder stirring blades 11 on the inner cylinder 12 are spirally arranged from the lower end to the upper end, and the axial included angle between the inner cylinder stirring blades 11 and the inner cylinder 12 is 10 degrees ~ 45 degrees;
the stirring shaft blades 10 on the first side stirring shaft 5 and the second side stirring shaft 6 are spirally arranged from the lower end to the higher end, and the spiral directions are opposite; the axial included angle of the stirring shaft blades 10 is 20-45 degrees.
In some embodiments, as shown in fig. 2, the stirring shaft blades 10 are arranged at the middle position of the two corresponding rows of the inner drum stirring blades 11.
In some embodiments, the central axis of the inner barrel 12 forms an angle of 5 ° to 10 ° with the horizontal plane.
In some embodiments, as shown in fig. 1, the feed inlets are multiple and include a RAP material inlet 7, an asphalt inlet 8, and a powder material inlet 9 in sequence from the lower end to the upper end.
In some embodiments, as shown in fig. 1 and 3, the double differential three horizontal shaft asphalt mixture mixing drum further includes a rolling ring 2, the rolling ring 2 is respectively disposed in the region where the two ends of the inner cylinder 12 are exposed outside the outer cylinder, the rolling ring 2 is respectively disposed in the region where the first side stirring shaft 5 and the second side stirring shaft 6 are exposed outside the outer cylinder, and the inner cylinder, the first side stirring shaft 5 and the second side stirring shaft 6 are rotated relative to the outer cylinder by the rotation of the rolling ring.
In the embodiment, in an interlayer space formed between the inner cylinder and the outer cylinder, the interlayer is used for heating and recovering the asphalt material and stirring the mixture, one part of heat required by heating the recovered asphalt material comes from radiant heat and conduction heat of the inner cylinder wall and the thermal aggregate, and the other part of heat comes from convection action of hot gas in the inner cylinder. The inner cylinder 12 is used for heating and drying aggregate, the interlayer 16 is used for heating and drying RAP material and mixing mixture, the outer side of the interlayer 16 is provided with an RAP material inlet 7, an asphalt inlet 8, a powder inlet 9 and a finished product material outlet 4, and two ends of the inner cylinder 12 are respectively provided with an aggregate inlet 3 and a burner (not shown).
In some embodiments, the outer cylinder 1 is fixedly installed on a support (not shown), the inner cylinder 12 and the first and second side stirring shafts 5 and 6 are driven by the driving motor to move the rolling ring 2, the first and second side stirring shafts 5 and 6 are driven by the first driving device to move together, and the inner cylinder 12 is driven by the second driving device separately. The drum is inclined at 5 °, the burner (not shown) is located at the lower end of the inner drum 12 and the aggregate inlet 3 is located at the upper end of the inner drum 12. The drying and heating blades can enable the aggregates to form a material curtain in the inner cylinder to promote the aggregates to be dried, the stirring blades can enable the mixed materials to roll in the interlayer to promote the materials to be uniformly mixed, the plane passing through the central line of the inner cylinder and the horizontal plane have an inclination angle, the value of the inclination angle is between 5 and 10 degrees, and the inner cylinder forms a large stirring shaft of the double-differential three-horizontal-shaft stirring roller.
In addition, the two stirring shafts are hollow or solid, the diameter difference of the two stirring shafts is small, the two stirring shafts are respectively arranged on two sides of the inner cylinder and are provided with stirring blades, the included angle alpha of the connecting line of the axes of the two stirring shafts and the axis of the roller is 100 degrees ~ 140 degrees, the purpose is to better stir the materials uniformly, and the two stirring shafts form the two stirring shafts of the double differential three horizontal shaft stirring roller.
In order to avoid interference phenomenon, the stirring shaft blades 10 on the two stirring shafts and the stirring blades 11 on the inner cylinder are arranged in a staggered way, and the region formed between the large stirring shafts is a differential forced stirring region.
As shown in fig. 2 and 3, drying and heating blades 13 are arranged on the inner wall of the inner cylinder 12, aggregate is lifted and scattered continuously by the blades, hot air is promoted to be in full contact with the aggregate, the heat efficiency is improved, and the aggregate is heated to a required temperature; the interlayer 16 is provided with a first side stirring shaft 5 and a second side stirring shaft 6, and the stirring shaft blades 10 are arranged on the interlayer, and the stirring shaft blades 10 have three functions: 1) the heat efficiency is improved, and the heat of the hot aggregate and the heat of the inner cylinder 12 are transferred to the RAP material in a short time by continuously rolling the RAP material and the hot aggregate; 2) the stirring uniformity is improved, the stirring shaft blades 10 on the first side stirring shaft 5 can play a role in pre-stirring materials such as powder, asphalt and RAP materials, the stirring time of the mixture is reduced, the stirring blades 10 between the inner barrel 12 and the second side stirring shaft 6 play a role in forcibly stirring the mixture, and the mixture is uniformly stirred by continuously rolling the mixture.
The first side stirring shaft 5 and the second side stirring shaft 6 are respectively provided with stirring shaft blades 10 which are arranged in proportion to large stirring blades 11 on the inner cylinder 12, the differential ratio of the preferred embodiment is equal to 3.75, the stirring shaft blades 10 are 4 rows, the stirring blades 11 on the inner cylinder are 15 rows, and the stirring shaft blades 10 are arranged in the middle of the two corresponding rows of the stirring blades 11 on the inner cylinder, so that no interference is generated.
The working principle of the double differential three horizontal shaft type asphalt mixture stirring roller of the embodiment is as follows:
cold aggregate is added into the inner cylinder 12 from the aggregate inlet 3, the cold aggregate sequentially moves forward towards the discharge opening 15 under the rotation of the inner cylinder 12, the lifting and scattering of the drying and heating blades 13 and the inclination of the roller, in this process, a burner (not shown) heats and dries the aggregate, and when the aggregate enters the interlayer 16, stirring with RAP material in the first interlayer region 16-1 under the action of stirring blade, heating RAP material to certain temperature, asphalt and powder are added into the first area 16-1 of the interlayer through an asphalt inlet 8 and a powder inlet 9, the stirring shaft blades 10 on the first side stirring shaft 5 pre-stir the materials, then the mixture is conveyed to a differential area between the inner cylinder 12 and the second side stirring shaft 6 to be forcibly stirred under the action of the inner cylinder 12 and the inner cylinder stirring blades 11, and finally the mixture is output and stored through the finished product outlet 4 under the action of the discharge blades 14.
Example 2
On the other hand, the road maintenance equipment comprises the double differential three-horizontal-shaft asphalt mixture stirring roller.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the claimed invention.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. A double differential three horizontal shaft type asphalt mixture stirring roller is characterized by comprising a first side stirring shaft (5), a second side stirring shaft (6), an inner cylinder (12) and an outer cylinder (1) which can rotate relatively;
the outer cylinder (1) is sleeved outside the inner cylinder (12) and forms an interlayer (16) space with the outer wall of the inner cylinder (12); the central shaft of the inner cylinder (12) is obliquely arranged, so that a high end and a low end are formed at two ends of the inner cylinder and the outer cylinder; the first side stirring shaft (5) and the second side stirring shaft (6) are arranged in an interlayer (16) between the inner cylinder (12) and the outer cylinder (1) and are respectively positioned at two sides of the inner cylinder (12), and central axes of the first side stirring shaft (5) and the inner cylinder and central axes of the second side stirring shaft (6) and the inner cylinder are parallel to each other; stirring shaft blades (10) are respectively arranged on the first side stirring shaft (5) and the second side stirring shaft (6);
the interlayer (16) comprises an annular area (16-3), a first area (16-1) for arranging a first side stirring shaft (5) and a second area (16-2) for arranging a second side stirring shaft (6);
the high end of the inner cylinder (12) is provided with an open aggregate inlet (3), and the cylinder wall at the lower end of the inner cylinder (12) is provided with a discharge opening (15) which penetrates through the interlayer space between the interior and the exterior of the inner cylinder; the inner wall of the inner cylinder (12) is provided with a drying and heating blade (13), and the outer wall of the inner cylinder (12) is provided with inner cylinder stirring blades (11) which are arranged in a spiral shape;
a feed inlet and a finished product outlet (4) which are communicated with the interlayer space are formed in the wall of the outer barrel (1), and the feed inlet is positioned above the first side stirring shaft (5) and is close to the lower end of the outer barrel (1); the finished product outlet (4) is positioned at the high end of the outer barrel (1) and is close to the second side stirring shaft (6);
a discharging blade (14) is arranged on the outer wall of the inner cylinder (12) at the position corresponding to the finished product outlet (4);
the rotating direction of the first side stirring shaft (5) is the same as that of the inner cylinder (12), and the rotating direction of the second side stirring shaft (6) is opposite to that of the inner cylinder (12).
2. The double differential three horizontal shaft asphalt mixing drum according to claim 1, characterized in that the diameter ratio of the outer diameter of the inner cylinder (12) to the first side stirring shaft (5) and the second side stirring shaft (6) is 2 ~ 9, the diameter of the first side stirring shaft (5) and the diameter of the second side stirring shaft (6) are similar;
and/or the ratio of the row number of the inner cylinder stirring blades (11) on the inner cylinder (12) to the row number of the stirring shaft blades (10) on the first side stirring shaft (5) and the second side stirring shaft (6) is defined as a differential ratio, the differential ratio is a non-integer, and the rotation speed ratio of the inner cylinder (12) to the first side stirring shaft (5) and the second side stirring shaft (6) is equal to the differential ratio.
3. The double differential three horizontal axis asphalt mixing drum according to claim 2, characterized in that the number of rows of inner drum mixing blades (11) on the inner drum (12) is fifteen, the number of rows of mixing shaft blades (10) on the first side mixing shaft (5) and the second side mixing shaft (6) is four, and the differential ratio is equal to 3.75.
4. The double differential three horizontal shaft asphalt mixing drum according to claim 1, characterized in that the included angle α between the connecting lines of the axes of the first side mixing shaft (5) and the second side mixing shaft (6) and the axis of the inner cylinder (12) is 100 ° ~ 140 °.
5. The double differential three horizontal shaft type asphalt mixture stirring roller according to claim 1, characterized in that the inner cylinder stirring blades (11) on the inner cylinder (12) are spirally arranged from the lower end to the higher end, and the axial included angle between the inner cylinder stirring blades (11) and the inner cylinder (12) is 10 degrees ~ 45 degrees;
and/or the stirring shaft blades (10) on the first side stirring shaft (5) and the second side stirring shaft (6) are spirally arranged from the lower end to the higher end, and the spiral directions are opposite; the axial included angle of the stirring shaft blades (10) is 20-45 degrees.
6. The double differential three horizontal axis asphalt mixing drum according to claim 1, wherein the mixing shaft blades (10) are arranged in the middle of the two corresponding rows of inner drum mixing blades (11).
7. The double differential three horizontal axis asphalt mixing drum according to claim 1, characterized in that the included angle between the central axis of the inner drum (12) and the horizontal plane is 5 ° to 10 °.
8. The double differential three horizontal shaft asphalt mixing drum according to claim 1, wherein said feed inlets are multiple, comprising a RAP inlet (7), an asphalt inlet (8), and a powder inlet (9).
9. The double differential three-horizontal-shaft asphalt mixture stirring drum according to claim 1, further comprising rolling rings (2), wherein the rolling rings (2) are respectively arranged in the areas of the two ends of the inner cylinder (12) exposed outside the outer cylinder, the rolling rings (2) are respectively arranged in the areas of the first side stirring shaft (5) and the second side stirring shaft (6) exposed outside the outer cylinder, and the inner cylinder, the first side stirring shaft (5) and the second side stirring shaft (6) are rotated relative to the outer cylinder through the rotation of the rolling rings.
10. A road maintenance device, characterized by comprising the double differential three horizontal shaft asphalt mixing drum of any one of claims 1 to 9.
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| CN201911105200.2A CN110700043A (en) | 2019-11-13 | 2019-11-13 | Double-differential three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment |
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| CN201911105200.2A CN110700043A (en) | 2019-11-13 | 2019-11-13 | Double-differential three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment |
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| CN110700043A true CN110700043A (en) | 2020-01-17 |
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| CN201911105200.2A Pending CN110700043A (en) | 2019-11-13 | 2019-11-13 | Double-differential three-horizontal-shaft asphalt mixture stirring roller and road maintenance equipment |
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