CN213772811U - Asphalt mixture production equipment - Google Patents
Asphalt mixture production equipment Download PDFInfo
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- CN213772811U CN213772811U CN202020882415.7U CN202020882415U CN213772811U CN 213772811 U CN213772811 U CN 213772811U CN 202020882415 U CN202020882415 U CN 202020882415U CN 213772811 U CN213772811 U CN 213772811U
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Abstract
The utility model provides an asphalt mixture production device, which is provided with a coarse material regeneration mechanism and a fine material regeneration mechanism; the coarse material regeneration mechanism is connected with the fine material regeneration mechanism; the coarse material regeneration mechanism comprises a high-temperature smoke generator and a coarse material heat regeneration roller; the high-temperature flue gas generator is connected with the coarse material heat regeneration roller; the fine material regeneration mechanism comprises a shell, a conveying assembly and a heating plate; the conveying assembly is arranged between the shell and the heating plate; the coarse material heat regeneration roller is connected with the shell; the conveying assembly comprises a conveying chain and a plurality of scraper plates arranged on the conveying chain; a gap is formed between the scraper piece and the heating plate; high temperature flue gas generator sets up in the below of hot plate, can not only carry out thermal regeneration respectively to coarse fodder and fine material simultaneously, has improved production efficiency, can also prevent fine material heating softening back adhesion cylinder inner wall, and heating efficiency is high, and in addition, the anaerobic hot flue gas that has utilized among the coarse fodder thermal regeneration cylinder gets into the casing, can prevent that the fine material in the casing is ageing when the heating secondary.
Description
Technical Field
The utility model relates to an asphalt mixture production facility technical field, in particular to asphalt mixture production facility.
Background
The RAP regeneration form in the current asphalt mixture thermal regeneration technology mainly comprises the following steps:
1. heating all RAPs by adopting a drying roller, then stirring the RAPs and the new materials to obtain an RAP asphalt mixture, wherein the new aggregate and the RAP are respectively heated and metered by using independent drying rollers and then are put into a stirrer, and meanwhile, asphalt and powder are added to be stirred into the new asphalt mixture. In the RAP heating process, the specific surface area is greatly different due to different particle sizes. Therefore, materials with different particle sizes are not heated evenly under the same heating environment. When the fine material is heated to the required temperature, the coarse material is far from reaching the required temperature; or when the coarse material is heated to the required temperature, the asphalt in the fine material is burnt, aged and loses function. Meanwhile, the asphalt content in the fine particles is high, so that adhesion can be generated after the fine particles are heated and melted, and the normal use of equipment is influenced.
2. RAP is processed separately according to the particle size, and large particle RAP is heated in a traditional drum-type drying and heating mode; directly putting fine particles (the particle size is less than or equal to 5mm) into a stirring cylinder without heating, mixing the fine particles with the new aggregate and the heated large particle RAP, and heating the new aggregate or the large particle RAP to a temperature higher than the required discharge temperature to heat the fine particles to the required temperature through heat conduction with the fine particles. This approach has two problems: 1) the temperature of new aggregate or large-particle RAP cannot be raised infinitely, otherwise, the strength of the aggregate is damaged (generally, the temperature of the aggregate of the conventional asphalt mixture is not more than 230 ℃), so that the addition amount of RAP fine particles is limited; 2) the water contained in the fine particles and the high-temperature aggregate are mixed and contacted in the stirring cylinder to generate a large amount of water vapor instantly, so that the overall negative pressure of the equipment is influenced, the use of the equipment is influenced, and meanwhile, the smoke is also generated to leak to cause environmental pollution.
At present, when the RAP coarse material and the RAP fine material are thermally regenerated together, a flexible chain is generally adopted as a roller blade in order to prevent the roller from being adhered, but the mode has the problem of low heating efficiency.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problems in the prior art, the utility model provides an asphalt mixture production facility can solve above-mentioned technical problem.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
an asphalt mixture production device comprises a coarse material regeneration mechanism and a fine material regeneration mechanism;
the coarse material regeneration mechanism is connected with the fine material regeneration mechanism;
the coarse material regeneration mechanism comprises a high-temperature smoke generator and a coarse material heat regeneration roller;
the high-temperature smoke generator is connected with the coarse material heat regeneration roller;
the fine material regeneration mechanism comprises a shell, a conveying assembly and a heating plate;
the conveying assembly is arranged between the shell and the heating plate;
the coarse material heat regeneration roller is connected with the shell;
the conveying assembly comprises a conveying chain and a plurality of scraper plates arranged on the conveying chain;
a gap is formed between the scraper piece and the heating plate;
the high-temperature smoke generator is arranged below the heating plate.
Further, the coarse material heat regeneration mechanism also comprises an exhaust gas chamber;
one end of the high-temperature smoke generator is connected with one end of the coarse material heat regeneration roller, and the other end of the coarse material heat regeneration roller is connected with one end of the waste gas chamber;
the other end of the waste gas chamber is connected with the other end of the high-temperature smoke generator through a first pipeline.
Further, the other end of the exhaust gas chamber is connected to one end of the housing through a second pipe.
Further, the coarse material heat regeneration mechanism also comprises a first induced draft fan;
the other end of the waste gas chamber is connected with one end of the first induced draft fan through a third pipeline.
Further, the fine material heat regeneration mechanism also comprises a second induced draft fan;
the other end of the shell is connected with the second induced draft fan through a fourth pipeline.
Furthermore, a first feeding hole and a discharging hole are respectively formed in the shell, and a second feeding hole and a second discharging hole are respectively formed in the coarse material heat regeneration roller.
Furthermore, a temporary storage bin, a metering scale and a stirrer are sequentially arranged below the discharge port of the shell and the discharge port of the coarse material heat regeneration roller.
Further, the conveying assembly further comprises a driving roller and a riding wheel;
the driving roller and the riding wheel are respectively and rotatably connected with the conveying chain.
Further, the fine material regeneration mechanism also comprises a motor;
the driving roller is connected with the output end of the motor, and the rotating speed of the motor is adjustable.
Further, the outer surface of the shell is provided with an insulating layer.
(III) advantageous effects
The beneficial effects of the utility model reside in that: the coarse material regeneration mechanism and the fine material regeneration mechanism are arranged; the coarse material regeneration mechanism is connected with the fine material regeneration mechanism; the coarse material regeneration mechanism comprises a high-temperature smoke generator and a coarse material heat regeneration roller; the high-temperature flue gas generator is connected with the coarse material heat regeneration roller; the fine material regeneration mechanism comprises a shell, a conveying assembly and a heating plate; the conveying assembly is arranged between the shell and the heating plate; the coarse material heat regeneration roller is connected with the shell; the conveying assembly comprises a conveying chain and a plurality of scraper plates arranged on the conveying chain; a gap is formed between the scraper piece and the heating plate; high temperature flue gas generator sets up in the below of hot plate, can not only carry out thermal regeneration respectively to coarse fodder and fine material simultaneously, has improved production efficiency, can also prevent fine material heating softening back adhesion cylinder inner wall, and heating efficiency is high, and in addition, the anaerobic hot flue gas that has utilized among the coarse fodder thermal regeneration cylinder gets into the casing, can prevent that the fine material in the casing is ageing when the heating secondary.
Drawings
Fig. 1 is a schematic view of the overall structure of the asphalt mixture production equipment according to the embodiment of the present invention.
[ description of reference ]
1: a drive roller; 2: a coarse material heat regeneration roller; 3: a housing; 4: a heat-insulating layer; 5: a first feed port; 6: a second induced draft fan; 7: a squeegee blade; 8: a conveyor chain; 9: a high temperature flue gas generator; 10: a temporary storage bin; 11: weighing; 12: a blender; 13: an exhaust gas chamber; 14: a second feed port; 15: a first induced draft fan; 16: a third induced draft fan; 17: a second conduit; 18: a ceramic fiber refractory layer; 19: a riding wheel; 20: heating the plate.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Referring to fig. 1, an asphalt mixture production facility is characterized by comprising a coarse material regeneration mechanism and a fine material regeneration mechanism;
the coarse material regeneration mechanism is connected with the fine material regeneration mechanism;
the coarse material regeneration mechanism comprises a high-temperature smoke generator and a coarse material heat regeneration roller;
the high-temperature smoke generator is connected with the coarse material heat regeneration roller;
the fine material regeneration mechanism comprises a shell, a conveying assembly and a heating plate;
the conveying assembly is arranged between the shell and the heating plate;
the coarse material heat regeneration roller is connected with the shell;
the conveying assembly comprises a conveying chain and a plurality of scraper plates arranged on the conveying chain;
a gap is formed between the scraper piece and the heating plate;
the high-temperature smoke generator is arranged below the heating plate.
From the above description, the beneficial effects of the present invention are: the coarse material regeneration mechanism and the fine material regeneration mechanism are arranged; the coarse material regeneration mechanism is connected with the fine material regeneration mechanism; the coarse material regeneration mechanism comprises a high-temperature smoke generator and a coarse material heat regeneration roller; the high-temperature flue gas generator is connected with the coarse material heat regeneration roller; the fine material regeneration mechanism comprises a shell, a conveying assembly and a heating plate; the conveying assembly is arranged between the shell and the heating plate; the coarse material heat regeneration roller is connected with the shell; the conveying assembly comprises a conveying chain and a plurality of scraper plates arranged on the conveying chain; a gap is formed between the scraper piece and the heating plate; high temperature flue gas generator sets up in the below of hot plate, can not only carry out thermal regeneration respectively to coarse fodder and fine material simultaneously, has improved production efficiency, can also prevent fine material heating softening back adhesion cylinder inner wall, and heating efficiency is high, and in addition, the anaerobic hot flue gas that has utilized among the coarse fodder thermal regeneration cylinder gets into the casing, can prevent that the fine material in the casing is ageing when the heating secondary.
Further, the coarse material heat regeneration mechanism also comprises an exhaust gas chamber;
one end of the high-temperature smoke generator is connected with one end of the coarse material heat regeneration roller, and the other end of the coarse material heat regeneration roller is connected with one end of the waste gas chamber;
the other end of the waste gas chamber is connected with the other end of the high-temperature smoke generator through a first pipeline.
Further, the other end of the exhaust gas chamber is connected to one end of the housing through a second pipe.
As can be seen from the above description, one end of the high-temperature flue gas generator is connected to one end of the coarse heat regeneration drum, and the other end of the coarse heat regeneration drum is connected to one end of the waste gas chamber; the other end of the waste gas chamber is connected with the other end of the high-temperature smoke generator through a first pipeline, the other end of the waste gas chamber is connected with one end of the shell through a second pipeline, a circulation loop is formed, low-temperature tail gas (90-120 ℃) utilized in the coarse material heat regeneration roller and hot air provided by a burner are mixed into 'low-temperature' and 'oxygen-free' hot smoke with proper temperature, when materials in the roller are heated, the asphalt can be prevented from being oxidized due to the fact that external air enters, and secondary aging is avoided.
Further, the coarse material heat regeneration mechanism also comprises a first induced draft fan;
the other end of the waste gas chamber is connected with one end of the first induced draft fan through a third pipeline.
Further, the fine material heat regeneration mechanism also comprises a second induced draft fan;
the other end of the shell is connected with the second induced draft fan through a fourth pipeline.
Furthermore, a first feeding hole and a discharging hole are respectively formed in the shell, and a second feeding hole and a second discharging hole are respectively formed in the coarse material heat regeneration roller.
Furthermore, a temporary storage bin, a metering scale and a stirrer are sequentially arranged below the discharge port of the shell and the discharge port of the coarse material heat regeneration roller.
From the above description, it can be known that the production efficiency is improved by sequentially arranging the temporary storage bin, the weighing scale and the stirrer below the discharge port of the shell and the discharge port of the coarse material heat regeneration roller.
Further, the conveying assembly further comprises a driving roller and a riding wheel;
the driving roller and the riding wheel are respectively and rotatably connected with the conveying chain.
Further, the fine material regeneration mechanism also comprises a motor;
the driving roller is connected with the output end of the motor, and the rotating speed of the motor is adjustable.
As can be seen from the above description, the rotating speed of the motor can be adjusted, so that the motor can be adjusted according to actual needs.
Further, the outer surface of the shell is provided with an insulating layer.
As can be seen from the above description, the heat dissipation can be prevented and the heat utilization rate can be improved by disposing the heat insulating layer on the outer surface of the housing.
The working principle of the utility model is as follows:
when the device is used, RAP coarse materials are placed into a second feeding hole of a coarse material thermal regeneration roller, meanwhile RAP fine materials are placed into a first feeding hole of a shell, high-temperature flue gas generated by the working of a high-temperature flue gas generator enters the coarse material thermal regeneration roller to heat the RAP coarse materials and enters a waste gas chamber, a part of hot flue gas is discharged through a third pipeline under the action of a first draught fan, a part of hot flue gas circularly enters the high-temperature flue gas generator through the first pipeline, and the other part of hot flue gas enters the shell through a second pipeline to be recycled and is discharged through a fourth pipeline under the action of a second draught fan; the high-temperature smoke generator can generate high-temperature smoke while heating the fine material RAP by increasing the temperature of the heating plate;
after RAP fine materials enter the shell, the motor is started, the driving roller drives the conveying chain to rotate clockwise, the scraper blade pushes the materials to advance along with the movement of the conveying chain, and meanwhile, the materials are spread along the bottom plate, so that the materials are transmitted while the fine materials are dried and heated, the efficiency is high, the adhesion problem of a traditional roller during RAP thermal regeneration is solved, the materials are spread along the bottom plate while the scraper blade pushes the materials to advance, the heating and evaporation areas are increased, and the heating efficiency is improved;
and finally, respectively feeding the RAP coarse material and the RAP fine material into a temporary storage bin for metering and then feeding into a stirrer for stirring.
Example one
Referring to fig. 1, an asphalt mixture production apparatus includes a coarse material regeneration mechanism and a fine material regeneration mechanism;
the coarse material regeneration mechanism is connected with the fine material regeneration mechanism;
the coarse material regeneration mechanism comprises a high-temperature smoke generator 9 and a coarse material heat regeneration roller 2;
the high-temperature flue gas generator 9 is connected with the coarse material heat regeneration roller 2;
the fine material regeneration mechanism comprises a shell 3, a conveying assembly and a heating plate 20;
the conveying assembly is arranged between the shell 3 and the heating plate 20;
the coarse material heat regeneration roller 2 is connected with the shell 3;
the conveying assembly comprises a conveying chain 8 and a plurality of scraper blades 7 arranged on the conveying chain 8;
a gap exists between the scraper bar 7 and the heating plate 20;
the high temperature flue gas generator 9 is disposed below the heating plate 20.
Specifically, the outer surface of the high-temperature flue gas generator 9 is a ceramic fiber fire-resistant layer 18, and the heating plate 20 is a high-temperature boiler steel plate;
the coarse material heat regeneration mechanism also comprises an exhaust gas chamber 13;
one end of the high-temperature flue gas generator 9 is connected with one end of the coarse material heat regeneration roller 2, and the other end of the coarse material heat regeneration roller 2 is connected with one end of the waste gas chamber 13;
the other end of the offgas chamber 13 is connected to the other end of the high temperature flue gas generator 9 through a first duct.
Specifically, a third induced draft fan 16 is arranged on the first pipeline;
the other end of the exhaust chamber 13 is connected to one end of the housing 3 via a second duct 17.
The coarse material heat regeneration mechanism also comprises a first induced draft fan 15;
the other end of the waste gas chamber 13 is connected with one end of a first induced draft fan 15 through a third pipeline.
The fine material heat regeneration mechanism also comprises a second induced draft fan 6;
the other end of the shell 3 is connected with the second induced draft fan 6 through a fourth pipeline.
The shell 3 is provided with a first feeding hole 5 and a discharge hole respectively, and the coarse material heat regeneration roller 2 is provided with a second feeding hole 14 and a discharge hole respectively.
A temporary storage bin 10, a metering scale 11 and a stirrer 12 are sequentially arranged below the discharge hole of the shell 3 and the discharge hole of the coarse material heat regeneration roller 2.
The conveying assembly further comprises a driving roller 1 and a riding wheel 19;
the driving roller 1 and the riding wheel 19 are respectively rotatably connected with the conveying chain 8.
The fine material regeneration mechanism also comprises a motor;
the driving roller 1 is connected with the output end of the motor, and the rotating speed of the motor is adjustable.
And the outer surface of the shell 3 is provided with a heat preservation layer 4.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The asphalt mixture production equipment is characterized by comprising a coarse material regeneration mechanism and a fine material regeneration mechanism;
the coarse material regeneration mechanism is connected with the fine material regeneration mechanism;
the coarse material regeneration mechanism comprises a high-temperature smoke generator and a coarse material heat regeneration roller;
the high-temperature smoke generator is connected with the coarse material heat regeneration roller;
the fine material regeneration mechanism comprises a shell, a conveying assembly and a heating plate;
the conveying assembly is arranged between the shell and the heating plate;
the coarse material heat regeneration roller is connected with the shell;
the conveying assembly comprises a conveying chain and a plurality of scraper plates arranged on the conveying chain;
a gap is formed between the scraper piece and the heating plate;
the high-temperature smoke generator is arranged below the heating plate.
2. The asphalt mixture producing plant according to claim 1, wherein said coarse thermal regeneration mechanism further comprises an off-gas chamber;
one end of the high-temperature smoke generator is connected with one end of the coarse material heat regeneration roller, and the other end of the coarse material heat regeneration roller is connected with one end of the waste gas chamber;
the other end of the waste gas chamber is connected with the other end of the high-temperature smoke generator through a first pipeline.
3. The asphalt mixture producing plant according to claim 2, wherein the other end of said off-gas chamber is connected to one end of said housing through a second pipe.
4. The asphalt mixture production plant according to claim 2, wherein said coarse thermal regeneration means further comprises a first induced draft fan;
the other end of the waste gas chamber is connected with one end of the first induced draft fan through a third pipeline.
5. The asphalt mixture production plant according to claim 1, wherein said fines thermal regeneration mechanism further comprises a second induced draft fan;
the other end of the shell is connected with the second induced draft fan through a fourth pipeline.
6. The asphalt mixture production equipment according to claim 1, wherein the housing is provided with a first feeding port and a discharging port, and the coarse material thermal regeneration roller is provided with a second feeding port and a discharging port.
7. The asphalt mixture production equipment according to claim 6, wherein a temporary storage bin, a metering scale and a stirrer are sequentially arranged below the discharge port of the shell and the discharge port of the coarse material thermal regeneration roller.
8. The asphalt mix production plant according to claim 1, wherein said conveying assembly further comprises a drive roller and a riding wheel;
the driving roller and the riding wheel are respectively and rotatably connected with the conveying chain.
9. The asphalt mixture producing plant according to claim 8, wherein said fines regeneration mechanism further comprises a motor;
the driving roller is connected with the output end of the motor, and the rotating speed of the motor is adjustable.
10. The asphalt mixture producing plant according to claim 1, wherein the outer surface of said housing is provided with an insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020882415.7U CN213772811U (en) | 2020-05-22 | 2020-05-22 | Asphalt mixture production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020882415.7U CN213772811U (en) | 2020-05-22 | 2020-05-22 | Asphalt mixture production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213772811U true CN213772811U (en) | 2021-07-23 |
Family
ID=76865995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020882415.7U Active CN213772811U (en) | 2020-05-22 | 2020-05-22 | Asphalt mixture production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213772811U (en) |
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2020
- 2020-05-22 CN CN202020882415.7U patent/CN213772811U/en active Active
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