CN108004880B - Thermal regeneration drying device for asphalt mixture - Google Patents
Thermal regeneration drying device for asphalt mixture Download PDFInfo
- Publication number
- CN108004880B CN108004880B CN201711240927.2A CN201711240927A CN108004880B CN 108004880 B CN108004880 B CN 108004880B CN 201711240927 A CN201711240927 A CN 201711240927A CN 108004880 B CN108004880 B CN 108004880B
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- Prior art keywords
- barrel
- section
- cylinder body
- cylinder
- thermal regeneration
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- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 238000001035 drying Methods 0.000 title claims abstract description 22
- 230000008929 regeneration Effects 0.000 title claims abstract description 17
- 238000011069 regeneration method Methods 0.000 title claims abstract description 17
- 239000010426 asphalt Substances 0.000 title claims description 34
- 239000000463 material Substances 0.000 claims abstract description 76
- 238000002485 combustion reaction Methods 0.000 claims description 22
- 230000007704 transition Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 8
- 230000032683 aging Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
-
- 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
Abstract
The utility model provides a hot regeneration drying device of bituminous mixture, includes rotatable and coaxial first barrel and the second barrel of arranging, and the back end cover of first barrel is established in the anterior segment of second barrel, and the back end of first barrel is provided with a plurality of guide vanes of circumference distribution, and interval arrangement is in order to form the fine material passageway between the anterior segment of back end of first barrel and second barrel, and a plurality of guide vanes extend to in the fine material passageway, the second barrel is from front to back downward sloping arrangement.
Description
Technical Field
The invention belongs to the technical field of asphalt thermal regeneration equipment, and particularly relates to a thermal regeneration drying device for an asphalt mixture.
Background
The hot regenerating technology for asphalt mixture is one of recovering and utilizing waste asphalt mixture, and the technological process includes compounding cold materials in different stages in compounding bin according to certain grading, stoving and heating the cold materials in stoving drum, storing and metering the heated old asphalt mixture, and mixing with new asphalt mixture in certain proportion. Because the external dimensions of the coarse grade material and the fine grade material in the old asphalt mixture are different by a plurality of times, the surface area of the fine grade material under the same volume is far larger than that of the coarse grade material, and the heat absorption speed of the fine grade material is far higher than that of the coarse grade material under the same heating condition that the drying roller and the material flow in the roller for the same time, the temperature of the fine grade material is extremely easy to heat too high, and once the temperature is heated too high, the secondary aging of asphalt is serious, so that the original use value of the old asphalt mixture is lost.
In order to solve the above problems, chinese patent document CN204417968U discloses an annular regeneration drying roller device, which comprises a bracket, a cylinder body, a heating device and a roller, the support of the support slope is said cylinder body, the slope upper end of cylinder body is equipped with the first pan feeding mouth that supplies coarse fodder to get into, the middle part is equipped with the second pan feeding mouth that supplies fine fodder to get into, the slope lower extreme is provided with the discharge gate, during the use, get into coarse fodder from first pan feeding mouth, dry in higher temperature, the fine fodder gets into from the second pan feeding mouth in middle part, keep away from burning flame, avoided because of heating temperature is too high, lead to pitch secondary aging, but the cylinder is one-stage, and the second pan feeding mouth is directly seted up on the middle part of cylinder, when coarse fodder flows down from first pan feeding mouth, easily block up the second pan feeding mouth, make the fine fodder unable entering the cylinder, cause the data putty, wait to improve further.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a thermal regeneration drying device which has a simple structure, ensures the quality of asphalt mixture and prevents blocking.
The invention adopts the following technical scheme:
the utility model provides a hot regeneration drying device of bituminous mixture, includes rotatable and coaxial first barrel and the second barrel of arranging, and the back end cover of first barrel is established in the anterior segment of second barrel, and the back end of first barrel is provided with a plurality of guide vanes of circumference distribution, and interval arrangement is in order to form the fine material passageway between the anterior segment of back end of first barrel and second barrel, and a plurality of guide vanes extend to in the fine material passageway, the second barrel is from front to back downward sloping arrangement.
Further, still include the coarse fodder feeding case and the fine fodder feeding case of fixed arrangement, coarse fodder feeding case and the front end cooperation of first barrel, the fine fodder feeding case encircles first barrel and with the cooperation of second barrel front end mouth, guide blade extends to in the fine fodder feeding case.
Further, the first cylinder body and the second cylinder body are connected with each other through the guide blade so as to realize synchronous rotation.
Further, the discharging box is arranged at the rear end of the second barrel.
Further, the combustion chamber connected with the discharge box and the combustor for supplying heat to the combustion chamber are also included.
Further, the device also comprises a combustion chamber connected with the coarse material feeding box and a burner for supplying heat to the combustion chamber.
Further, a plurality of first flexible lifting blades are circumferentially distributed on the inner wall of the first cylinder, and a plurality of second flexible lifting blades are circumferentially distributed on the inner wall of the second cylinder.
Further, the second cylinder comprises a first section, a second section and a conical transition section for connecting the first section and the second section, the diameter of the first section is larger than that of the first cylinder, and the front section of the second cylinder consists of the first section and a local transition section.
Further, the diameter of the second section is equal to the diameter of the first cylinder.
Further, the device also comprises a mounting seat and a driving device, wherein the first cylinder and the second cylinder are coaxially arranged and rotatably arranged on the mounting seat, and the driving device comprises a first driving mechanism arranged on the mounting seat and used for driving the first cylinder to rotate and a second driving mechanism arranged on the mounting seat and used for driving the second cylinder to rotate.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects: the drying device comprises a first cylinder body and a second cylinder body which are rotatably and coaxially arranged, wherein the rear section of the first cylinder body is sleeved in the front section of the second cylinder body, a fine material channel is formed by interval arrangement between the rear section of the first cylinder body and the front section of the second cylinder body, and the second cylinder body is obliquely arranged from front to back, so that coarse materials flowing into the second cylinder body from the first cylinder body can not flow back to the fine material channel to be blocked, fine materials can smoothly enter the second cylinder body to be mixed with coarse materials for drying, the fine materials are only dried and heated through the second cylinder body, the stroke is greatly reduced, the problem of overhigh fine material heating temperature is solved, the condition that asphalt with higher fine material surface content adheres to the inner wall of the first cylinder body or the second cylinder body is reduced, and the quality of asphalt mixture and the running reliability of equipment are ensured;
the rear section of the first cylinder body is provided with a plurality of circumferentially distributed guide blades, the guide blades extend into the fine material channel, and the guide blades guide fine materials to enter the second cylinder body from the fine material channel, so that the fine materials entering the fine material channel are prevented from being detained in the fine material channel;
the second cylinder comprises a first section, a second section and a conical transition section for connecting the first section and the second section, the diameter of the first section is larger than that of the first cylinder, the front section of the second cylinder consists of the first section and a local transition section, the rear section of the first cylinder can be sleeved in the front section of the second cylinder, the diameter of the second section of the second cylinder is equal to that of the first cylinder, the first cylinder and the second cylinder can synchronously rotate, the transition section is conical, and smooth transition of materials in the second cylinder from the first section to the second section is ensured;
the discharging box is arranged at the rear end of the second barrel, the combustion chamber is connected with the discharging box, the combustor is used for supplying heat to the combustion chamber, the direction of hot air flow generated by the combustion chamber is opposite to the flowing direction of coarse materials and fine materials, the drying and heating efficiency of the first barrel and the second barrel is improved, the equipment is more energy-saving in operation, and the combustion chamber is arranged between the combustor and the second barrel, so that combustion flame of the combustor and asphalt mixture of the second barrel can be prevented from being contacted, and asphalt on the surface of the asphalt mixture is aged.
Drawings
FIG. 1 is a schematic diagram of a specific structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
figure 3 is a cross-sectional view taken at A-A in figure 2.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 3, a thermal regeneration drying device for asphalt mixture comprises a mounting seat 1, a first cylinder 2, a second cylinder 3, a coarse material feeding box 4, a fine material feeding box 5, a discharging box 6, a combustion chamber 7, a burner 8 and a driving device;
the mounting seat 1 is obliquely arranged from front to back downwards;
the first cylinder 2 and the second cylinder 3 are rotatably and coaxially arranged on the mounting seat 1, the rear section of the first cylinder 2 is sleeved in the front section of the second cylinder 3, the rear section of the first cylinder 2 and the front section of the second cylinder 3 are arranged at intervals to form a fine material channel 32, and particularly, the second cylinder 3 is obliquely arranged on the mounting seat 1 from front to back, so that coarse materials flowing into the second cylinder 3 from the first cylinder 2 can not flow back to the fine material channel 32, and the fine materials can smoothly enter the second cylinder 3 to be mixed with the coarse materials for drying; the rear section of the first cylinder 2 is provided with a plurality of circumferentially distributed guide blades 21, the plurality of guide blades 21 extend into the fine material channel 32, so that fine materials entering the fine material channel 32 are prevented from being retained in the fine material channel 32 and smoothly enter the second cylinder 3, and further, the first cylinder 2 and the second cylinder 3 are mutually connected through the guide blades 21 to realize synchronous rotation; a plurality of first flexible material lifting blades 22 are circumferentially distributed on the inner wall of the first cylinder 2, so that coarse materials smoothly enter the second cylinder 3 from the first cylinder 2; a plurality of second flexible material lifting blades 31 are distributed on the circumference of the inner wall of the second cylinder body 3, so that asphalt mixture smoothly enters the discharge box 6 from the second cylinder body 3;
the second cylinder 3 comprises a first section 33, a second section 34 and a conical transition section 35 for connecting the first section 33 and the second section 34, the diameter of the first section 33 is larger than that of the first cylinder 2, the front section of the second cylinder 2 consists of the first section 33 and a local transition section 35, the rear section of the first cylinder 2 can be sleeved in the front section of the second cylinder 3, the diameter of the second section 34 is equal to that of the first cylinder 2, the synchronous rotation of the first cylinder 2 and the second cylinder 3 is ensured, the transition section 35 is conical, and the smooth transition of materials in the second cylinder 3 from the first section 33 to the second section 34 is ensured;
the coarse material feeding box 4 is matched with the front end of the first barrel 2 and is used for supplying coarse material to the first barrel 2, and comprises a tail gas settling chamber 41 matched with the front end of the first barrel 2 and a feeding chute 42 which is arranged on the tail gas settling chamber 41 and is connected with the first barrel 2 and is used for conveying coarse material;
the fine material feeding box 5 surrounds the first cylinder 2 and is matched with the front end opening of the second cylinder 3, fine materials are supplied to the second cylinder 3 through the fine material channel 32, specifically, the material guiding blades 21 extend into the fine material feeding box 5, and fine materials entering the fine material feeding box 5 are guided into the second cylinder 3 through the fine material channel 32;
the discharging box 6 is arranged at the rear end of the second cylinder body 3;
the combustion chamber 7 is connected with the discharge box 6, the combustor 8 is connected with the combustion chamber 7 for supplying heat to the combustion chamber 7, the combustion chamber 7 is connected with the discharge box 6, the direction of hot air flow generated by the combustion chamber 7 is opposite to the flow direction of coarse materials and fine materials, the drying and heating efficiency of the first cylinder 2 and the second cylinder 3 is improved, the equipment is more energy-saving to operate, the combustion chamber 7 is arranged between the combustor 8 and the second cylinder 3, combustion flame of the combustor 8 can be prevented from being contacted with asphalt mixture of the second cylinder 3, so that asphalt on the surface of the asphalt mixture is aged, and in particular, the combustion chamber 7 can also be connected with the coarse material feeding box 4;
the driving device is arranged on the mounting seat 1 and comprises a first driving mechanism 91 arranged at the front end of the mounting seat 1 and used for driving the first cylinder 2 to rotate and a second driving mechanism 92 arranged at the rear end of the mounting seat 1 and used for driving the second cylinder 3 to rotate, wherein the first driving mechanism 91 comprises a first motor 911 used for driving the first cylinder 2 to rotate, and the second driving mechanism 92 comprises a second motor 921 used for driving the second cylinder 3 to rotate;
when the asphalt mixing device is used, coarse materials enter the second cylinder body 3 from the first cylinder body 2, fine materials enter the second cylinder body 3 from the fine material channel 32 and are mixed with the coarse materials to form asphalt mixture, the fine materials are dried and heated only through the second cylinder body 3, the stroke is greatly reduced, the problem that the heating temperature of the fine materials is too high is solved, the condition that asphalt with higher fine material surface content is adhered to the first cylinder body 2 or the second cylinder body 3 is reduced, and the quality of the asphalt mixture and the running reliability of equipment are ensured.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, i.e., the invention is not to be limited to the details of the claims and the description, but rather is to cover all modifications which are within the scope of the invention.
Claims (8)
1. The utility model provides a hot regeneration drying device of asphalt mixture which characterized in that: the device comprises a first barrel and a second barrel which are rotatably and coaxially arranged, wherein the rear section of the first barrel is sleeved in the front section of the second barrel, a plurality of circumferentially distributed guide blades are arranged at the rear section of the first barrel, a fine material channel is formed by interval arrangement between the rear section of the first barrel and the front section of the second barrel, the plurality of guide blades extend into the fine material channel, and the second barrel is obliquely arranged from front to back;
the coarse material feeding box is matched with the front end of the first barrel, the fine material feeding box surrounds the first barrel and is matched with the front end opening of the second barrel, and the guide blades extend into the fine material feeding box;
the first cylinder body and the second cylinder body are connected with each other through the guide blade so as to realize synchronous rotation.
2. The thermal regeneration drying device for asphalt mixtures according to claim 1, wherein: the discharging box is arranged at the rear end of the second cylinder body.
3. The thermal regeneration drying device for asphalt mixtures according to claim 2, wherein: the combustion chamber is connected with the discharge box, and the combustor is used for supplying heat to the combustion chamber.
4. The thermal regeneration drying device for asphalt mixtures according to claim 2, wherein: the device also comprises a combustion chamber connected with the coarse material feeding box and a burner for supplying heat to the combustion chamber.
5. A thermal regeneration drying apparatus for asphalt mixtures according to any one of claims 1 to 4, characterized in that: the first barrel inner wall circumference is distributed with a plurality of first flexible material lifting blades, and the second barrel inner wall circumference is distributed with a plurality of second flexible material lifting blades.
6. A thermal regeneration drying apparatus for asphalt mixtures according to any one of claims 1 to 4, characterized in that: the second barrel comprises a first section, a second section and a conical transition section for connecting the first section and the second section, the diameter of the first section is larger than that of the first barrel, and the front section of the second barrel consists of the first section and a local transition section.
7. The thermal regeneration drying device for asphalt mixtures according to claim 6, wherein: the diameter of the second section is equal to that of the first cylinder.
8. The thermal regeneration drying device for asphalt mixtures according to claim 1, wherein: the device comprises a mounting seat, a first cylinder body, a second cylinder body, a first driving mechanism and a second driving mechanism, wherein the first cylinder body and the second cylinder body are coaxially arranged and rotatably arranged on the mounting seat, and the driving mechanism comprises the first driving mechanism which is arranged on the mounting seat and used for driving the first cylinder body to rotate, and the second driving mechanism which is arranged on the mounting seat and used for driving the second cylinder body to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240927.2A CN108004880B (en) | 2017-11-30 | 2017-11-30 | Thermal regeneration drying device for asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240927.2A CN108004880B (en) | 2017-11-30 | 2017-11-30 | Thermal regeneration drying device for asphalt mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108004880A CN108004880A (en) | 2018-05-08 |
| CN108004880B true CN108004880B (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711240927.2A Active CN108004880B (en) | 2017-11-30 | 2017-11-30 | Thermal regeneration drying device for asphalt mixture |
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| Country | Link |
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| CN (1) | CN108004880B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657648B (en) * | 2019-11-04 | 2023-12-22 | 无锡雪桃集团有限公司 | Two segmentation feeding stoving section of thick bamboo devices |
| CN111877088A (en) * | 2020-05-22 | 2020-11-03 | 福建省铁拓机械股份有限公司 | Continuous type reclaimed asphalt mixture production facility |
| CN116377798B (en) * | 2023-03-30 | 2023-10-20 | 廊坊德基机械科技有限公司 | Old asphalt mixture regenerating, drying and heating method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2936341A1 (en) * | 1979-09-08 | 1981-03-12 | Alfelder Eisenwerke Carl Heise, KG vorm. Otto Wesselmann & Cie., 3220 Alfeld | METHOD AND DEVICE FOR TREATING BITUMINOUS MIXTURE IN A FIRED TURN DRUM |
| JP2011084881A (en) * | 2009-10-14 | 2011-04-28 | Nikko Co Ltd | Method and device for heating regeneration of asphalt pavement waste |
| CN103398555A (en) * | 2013-06-25 | 2013-11-20 | 三一汽车制造有限公司 | Drum-type drying device and a stirring station |
| CN203440735U (en) * | 2013-07-19 | 2014-02-19 | 廊坊德基机械科技股份有限公司 | Novel regenerative heating and drying drum for recycled asphalt pavement |
| CN205557255U (en) * | 2016-04-22 | 2016-09-07 | 青海第三路桥建设有限公司 | Pitch regeneration drying device |
| CN106835902A (en) * | 2017-04-17 | 2017-06-13 | 福建铁拓机械有限公司 | A kind of pitch drying system and furnace drying method |
| CN207552869U (en) * | 2017-11-30 | 2018-06-29 | 福建铁拓机械有限公司 | A kind of hot recycling drying unit of asphalt |
-
2017
- 2017-11-30 CN CN201711240927.2A patent/CN108004880B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2936341A1 (en) * | 1979-09-08 | 1981-03-12 | Alfelder Eisenwerke Carl Heise, KG vorm. Otto Wesselmann & Cie., 3220 Alfeld | METHOD AND DEVICE FOR TREATING BITUMINOUS MIXTURE IN A FIRED TURN DRUM |
| JP2011084881A (en) * | 2009-10-14 | 2011-04-28 | Nikko Co Ltd | Method and device for heating regeneration of asphalt pavement waste |
| CN103398555A (en) * | 2013-06-25 | 2013-11-20 | 三一汽车制造有限公司 | Drum-type drying device and a stirring station |
| CN203440735U (en) * | 2013-07-19 | 2014-02-19 | 廊坊德基机械科技股份有限公司 | Novel regenerative heating and drying drum for recycled asphalt pavement |
| CN205557255U (en) * | 2016-04-22 | 2016-09-07 | 青海第三路桥建设有限公司 | Pitch regeneration drying device |
| CN106835902A (en) * | 2017-04-17 | 2017-06-13 | 福建铁拓机械有限公司 | A kind of pitch drying system and furnace drying method |
| CN207552869U (en) * | 2017-11-30 | 2018-06-29 | 福建铁拓机械有限公司 | A kind of hot recycling drying unit of asphalt |
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| Publication number | Publication date |
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| CN108004880A (en) | 2018-05-08 |
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Address after: 362000 No.1 intelligent equipment Industrial Park, Luojiang District, Heshi Town, Luojiang District, Quanzhou City, Fujian Province Applicant after: Fujian tietuo Machinery Co.,Ltd. Address before: 362011 West Industrial Zone, Luojiang District, Fujian, Quanzhou Applicant before: FUJIAN TIETUO MACHINERY Co.,Ltd. |
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