CN218131353U

CN218131353U - Energy-saving consumption-reducing production system for high-RAP-content warm mix asphalt mixture

Info

Publication number: CN218131353U
Application number: CN202221269961.9U
Authority: CN
Inventors: 彭闵敏; 姜勇; 王洪杰; 刘思恒; 邓剑; 木乃殷担; 李方林
Original assignee: Sinohydro Bureau 7 Co Ltd
Current assignee: Sinohydro Bureau 7 Co Ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-12-27
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses an energy saving and consumption reduction's high RAP mixes production system of volume warm mix asphalt mixture, which comprises a tank body, the internal agitating unit that is equipped with of jar, agitating unit include at least one stirring roller, are equipped with the motor that is used for driving agitating unit on the agitating unit, and the motor includes the output shaft, and the stirring roller is parallel with the output shaft of motor and eccentric settings, and agitating unit makes under the operating condition of motor, and the stirring roller rotates around the axis of output shaft when self axis pivoted. The stirring device further comprises a driving gear arranged at the bottom end of an output shaft of the motor, a driven gear is connected to the top end of the stirring roller, the driving gear is meshed with the driven gear, a gear ring with gear teeth is arranged on the inner wall of the stirring roller, the gear ring is meshed with the driven gear, and the gear ring is connected with the tank body. The utility model discloses satisfy warm mix bituminous mixture production demand, improve its stirring effect, reduce resource consumption, energy saving.

Description

Energy-saving consumption-reducing production system for high-RAP-content warm mix asphalt mixture

Technical Field

The utility model relates to a warm mix asphalt production technical field, concretely relates to energy saving and consumption reduction's high RAP mixes production system of volume warm mix asphalt mixture.

Background

RAP is an abbreviation of recycled Asphalt Pavement (Reclaimed Asphalt), and the recycled Asphalt mixture refers to an Asphalt mixture containing RAP, and new Asphalt, mineral aggregate and a regenerant are usually mixed in proportion. The mixture obtained by mixing the old asphalt pavement and the additive in a certain proportion after recovery treatment can be reused for paving the pavement, and the resource can be saved and the energy consumption can be reduced by using RAP to produce the warm-mixed asphalt.

The asphalt mixture warm-mixing technology is a technology which enables asphalt to be mixed and constructed at a relatively low temperature through certain technical measures and simultaneously keeps the service performance of the hot-mixed asphalt mixture not lower than that of the hot-mixed asphalt mixture. The warm mixing technology has lower mixing and construction temperature than that of hot mixing, so that the fuel cost is reduced, and the energy consumption is saved. Compared with a hot mixing technology, the warm mixing technology is used for regenerating asphalt mixture, secondary aging of RAP can be effectively prevented due to temperature reduction, emission of asphalt smoke and toxic gas is reduced, meanwhile, the heating bonding phenomenon of RAP in a heating barrel can be reduced, the replacement rate of RAP is improved, mixing and construction temperature can be further reduced, and environmental and economic benefits can be further improved.

In the existing production process of warm mix asphalt, a stirrer is usually driven to rotate around a single axis to stir, the stirring effect is poor, the quality of finally produced asphalt is affected, and the warm mix additive is volatilized due to contact of the warm mix additive and aggregate after being added due to poor stirring effect, so that resource waste is caused, and the asphalt is easily adhered to a stirring roller in the stirring process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an energy saving and consumption reduction's high RAP mixes volume warm mix asphalt mixture's production system satisfies warm mix asphalt mixture production demand, improves its stirring effect, reduces resource consumption, energy saving.

In order to solve the technical problem, the utility model adopts the following scheme:

the utility model provides an energy saving and consumption reduction's high RAP mixes production system of volume warm mix asphalt mixture, includes a jar body, the internal agitating unit that is equipped with of jar, agitating unit include at least one stirring roller, and agitating unit is last to be equipped with a motor that is used for driving agitating unit, and the motor includes the output shaft, and the stirring roller is parallel and eccentric settings with the output shaft of motor, and agitating unit makes under the operating condition of motor, and the stirring roller rotates around the axis of output shaft when rotating around self axis. The warm-mix asphalt mixing tank has the advantages that through the arrangement of the working mode that the stirring roller can rotate around the axis of the stirring roller and can also rotate around the axis of the output shaft, the stirring roller can not only stir the mixture at the instantaneous position of the stirring roller, but also stir the whole mixture in the tank body, the stirring effect in the production process of the warm-mix asphalt mixture is improved, the volatilization amount of the warm-mix additive due to the contact of the warm-mix additive and aggregate after the warm-mix additive is added can be effectively reduced, and resources are saved; compared with the prior art, the same amount of warm-mix additive is added, the volatilization amount is reduced, the amount of RAP reaction is increased, a higher amount of RAP can be added for producing the warm-mix asphalt mixture, and the resource utilization rate is improved.

Further, agitating unit is still including the driving gear of the output shaft bottom of locating the motor, and the top of stirring roller is connected with driven gear, and the driving gear meshes with driven gear mutually, still includes that the inner wall is equipped with the ring gear of the teeth of a cogwheel, and the ring gear meshes with driven gear mutually, and the ring gear is connected with the jar body. The stirring roller rotates around the axis of the output shaft while rotating around the axis of the stirring roller through a planetary gear train consisting of the driving gear, the driven gear and the gear ring.

Furthermore, the stirring roller adopts an auger with a shaft. The effect is that the mixture is stirred by the auger, the mixture can be stirred from the lower part of the tank body to the upper part of the tank body, and the stirring effect is good.

Furthermore, a scraper is arranged between the blade of the stirring roller and the driven gear, and the scraper is arranged on the tank body and extends to the position close to the outline range of the stirring roller when rotating around the output shaft. The effect is that the mixture stuck on the rotating shaft of the stirring roller during stirring can be scraped off through the arrangement of the scraper.

Furthermore, a heating device is arranged outside the tank body and comprises at least one heating wire, the heating wire is wound on the outer side wall of the tank body and is connected with a scraper, and the scraper is made of a heat conducting material. Its effect does, heats the jar body through the heating silk, heats the scraper simultaneously, and the ropy degree of pitch reduces along with the rising of temperature, is favorable to scraping pitch from the stirring roller through heating the scraper, avoids pitch to glue and influences the normal use of stirring roller on the stirring roller.

Furthermore, the heating device and the tank body are externally provided with a shell, and the tank body is provided with a feeding channel, a feeding channel and a discharging channel which all penetrate through the shell and the tank body. The heating wire is used for protecting the heating wire wound on the surface of the tank body through the arrangement of the shell; RAP and other fixed additives are conveniently added through the arrangement of the feeding channel; the warm mixing additive is conveniently added through the arrangement of the feeding channel; through discharge passage's setting, conveniently discharge the bituminous mixture after the stirring.

Furthermore, the bottom of the tank body is provided with an inclined block which inclines downwards towards the discharge channel. The effect of the device is that the stirred asphalt mixture is conveniently discharged through the discharging channel by the arrangement of the inclined block.

Further, the outer surfaces of the stirring roller and the scraper are provided with anti-sticking layers. The function of the asphalt cleaning agent is to prevent the asphalt from being excessively adhered to the stirring roller or the scraper.

Furthermore, the bottom surface of the gear ring is provided with a check ring for supporting the driven gear, and a cavity for the stirring roller to rotate around the output shaft is arranged in the check ring. The effect is that, through the setting of retaining ring, can enough be used for supporting driven gear, also can avoid on stirring or add the in-process pitch splashes the gear.

Furthermore, at least three rollers or balls used for contacting with the bottom surface of the driven gear are uniformly distributed on the upper surface of the retainer ring in an annular shape. The function is that, through the setting of roller or ball, can reduce the friction of driven gear and retaining ring through converting sliding friction into rolling friction.

Furthermore, the upper surface of the retainer ring is annularly and uniformly distributed with at least three cylindrical rollers which are used for contacting with the bottom surface of the driven gear, the bottom surface of the driven gear is provided with a support ring which is used for contacting with the cylindrical rollers, the support ring and the driven gear are coaxially arranged, and the ring width of the support ring is smaller than the length of the cylindrical rollers. The effect of the supporting ring is that friction between the driven gear and the retainer ring can be further reduced by reducing the contact area between the driven gear and the cylindrical roller.

The utility model discloses beneficial effect who has:

1. through the arrangement of the working mode that the stirring roller can rotate around the axis of the stirring roller and also can rotate around the axis of the output shaft, the stirring roller can not only stir the mixture at the instantaneous position of the stirring roller, but also stir the whole mixture in the tank body, the stirring effect in the production process of the warm-mixed asphalt mixture is improved, the volatilization amount of the warm-mixed additive due to the contact of the warm-mixed additive and aggregate after the warm-mixed additive is added can be effectively reduced, and resources are saved;

2. through the improvement of the stirring effect, compared with the prior art, the same amount of warm-mix additive is added, the volatilization amount is reduced, the amount capable of reacting with RAP is increased, a higher amount of RAP can be added for producing the warm-mix asphalt mixture, and the resource utilization rate is improved;

3. through the setting of scraper and antiseized layer, can avoid pitch too much to bond on stirring roller and scraper.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of a stirring device;

fig. 3 is a schematic sectional structure view of the stirring device without the stirring roller.

The reference numerals are illustrated below: 1. a tank body; 2. a stirring device; 3. a stirring roller; 4. a motor; 5. an output shaft; 6. a driving gear; 7. a driven gear; 8. a ring gear; 9. a scraper; 10. a heating device; 11. heating wires; 12. a sloping block; 13. a housing; 14. a feed channel; 15. a charging channel; 16. a discharge channel; 17. a retainer ring; 18. a roller; 19. and (3) supporting the ring.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "installed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The utility model provides an energy saving and consumption reduction's high RAP mixes production system of volume warm mix asphalt mixture, as shown in figure 1, including a jar body 1, jar internal agitating unit 2 that is equipped with, agitating unit 2 includes two stirring rollers 3, is equipped with a motor 4 that is used for driving agitating unit 2 on the agitating unit 2, and motor 4 includes output shaft 5, and stirring roller 3 is parallel and eccentric settings with motor 4's output shaft 5, and the axis of two stirring rollers 3 and output shaft 5's axis are located same plane, and agitating unit 2 makes under motor 4's operating condition, and stirring roller 3 rotates around output shaft 5's axis when rotating around self axis. The effect of the stirring device is that through the arrangement of the working mode that the stirring roller 3 can rotate around the axis of the stirring roller and can also rotate around the axis of the output shaft 5, the stirring roller 3 can not only stir the mixture at the instant position of the stirring roller, but also stir the whole mixture in the tank body 1, the stirring effect in the production process of the warm-mixed asphalt mixture is improved, the volatilization amount of the warm-mixed additive due to the contact of the warm-mixed additive and aggregate after the warm-mixed additive is added can be effectively reduced, and the resources are saved; compared with the prior art, the same amount of warm-mix additive is added, the volatilization amount is reduced, the amount of RAP reaction is increased, a higher amount of RAP can be added for producing the warm-mix asphalt mixture, and the resource utilization rate is improved.

Specifically, as shown in fig. 2, the stirring device 2 further comprises a driving gear 6 arranged at the bottom end of an output shaft 5 of the motor 4, a driven gear 7 is connected to the top end of the stirring roller 3, the driving gear 6 is meshed with the driven gear 7, a gear ring 8 with gear teeth is arranged on the inner wall of the stirring roller, the gear ring 8 is meshed with the driven gear 7, and the top of the gear ring 8 is connected with the top inside the tank body 1. The two driven gears 7 are identical, and the axis of the driving gear 6 coincides with the axis of the ring gear 8. The function of the stirring roller is that the stirring roller 3 rotates around the axis of the output shaft 5 while rotating around the axis of the stirring roller through a planetary gear train consisting of the driving gear 6, the driven gear 7 and the gear ring 8.

Specifically, as shown in fig. 2, the stirring roller 3 is a screw conveyer with a shaft. The stirring device has the advantages that the mixture is stirred by the auger and can be stirred from the lower part of the tank body 1 to the upper part of the tank body 1, and the stirring effect is good.

Specifically, as shown in fig. 1, a scraper 9 is arranged between the blade of the stirring roller 3 and the driven gear 7, and the scraper 9 is arranged on the tank 1 and extends to a position close to the profile range of the stirring roller 3 when rotating around the output shaft 5. Four scrapers 9 are annularly arranged in the tank body 1. The function of the scraper is that the mixture stuck on the rotating shaft of the stirring roller 3 during stirring can be scraped off by the scraper 9.

Specifically, as shown in fig. 1, a heating device 10 is arranged below the tank body 1, the heating device 10 includes at least one heating wire 11, the heating wire 11 is wound on the outer side wall of the tank body 1 and connected with the end face of the scraper 9 penetrating through the tank body 1, and the scraper 9 is made of a heat-conducting material, such as high-carbon steel. Its effect does, heats jar body 1 through heater strip 11, heats scraper 9 simultaneously, and the ropy degree of pitch reduces along with the rising of temperature, is favorable to scraping pitch from stirring roller 3 through heating scraper 9, avoids pitch to glue and influences stirring roller 3's normal use on stirring roller 3.

Specifically, as shown in fig. 1, a shell 13 is arranged outside the heating device 10 and the tank body 1, and a feeding channel 14, a feeding channel 15 and a discharging channel 16 which all penetrate through the shell 13 and the tank body 1 are arranged on the tank body 1. The discharge channel 16 is externally threaded with an end cap. The heating wire 11 wound on the surface of the tank body 1 is protected by the arrangement of the shell 13; RAP and other fixed additives are conveniently added through the arrangement of the feed channel 14; the warm-mixing additive is conveniently added through the arrangement of the feeding channel 15; through the setting of discharging channel 16, the bituminous mixture after the convenient discharge stirring.

Specifically, as shown in fig. 1, the bottom of the tank 1 is provided with an inclined block 12 which inclines downwards towards the discharging channel 16. The side of the swash block 12 facing away from the tapping channel 16 is higher than the side of the swash block 12 facing the tapping channel 16. The cross-sectional view of the swash block 12 is in the shape of a right triangle. The effect is that the arrangement of the inclined block 12 is convenient for discharging the stirred asphalt mixture through the discharging channel 16.

Specifically, the outer surfaces of the stirring roller 3 and the scraper 9 are provided with anti-sticking layers 12, and the anti-sticking layers 12 are made of high-density polyethylene. The function of which is to avoid that the pitch sticks too much to the mixing roll 3 or the doctor blade 9.

Specifically, as shown in fig. 2, a retaining ring 17 for supporting the driven gear 7 is arranged on the bottom surface of the gear ring 8, and a cavity for the stirring roller 3 to rotate around the output shaft 5 is formed in the retaining ring 17. The effect is that, through the setting of retaining ring 17, can both be used for supporting driven gear 7, also can avoid on the stirring or add the in-process pitch splashes the gear.

Specifically, as shown in fig. 2, twenty-four rollers 18 or balls for contacting with the bottom surface of the driven gear 7 are uniformly distributed on the upper surface of the retainer ring 17 in an annular manner. This is effective in reducing friction between the driven gear 7 and the retainer 17 by converting sliding friction into rolling friction by providing the rollers 18 or balls.

Specifically, as shown in fig. 3, twenty-four cylindrical rollers 18 for contacting with the bottom surface of the driven gear 7 are uniformly distributed on the upper surface of the retainer ring 17 in an annular shape, a support ring 19 for contacting with the cylindrical rollers 18 is arranged on the bottom surface of the driven gear 7, the support ring 19 is arranged coaxially with the driven gear 7, and the ring width of the support ring 19 is smaller than the length of the cylindrical rollers 18. This arrangement of the support ring 19 further reduces friction between the driven gear 7 and the retainer ring 17 by reducing the contact area between the driven gear 7 and the cylindrical rollers 18.

The working principle of the embodiment is explained as follows: the motor 4 is started, an output shaft 5 of the motor 4 drives the driving gear 6 to rotate around the axis of the driving gear 6, the driving gear 6 drives the driven gear 7 to rotate around the axis of the driving gear 6, and the driven gear 7 rotates around the axis of the gear ring 8 in the gear ring 8, so that the stirring roller 3 rotates around the axis of the output shaft 5 while rotating around the axis of the driving gear; the heating device 10 is started to heat the tank body 1, RAP is added through the feeding channel 14, so that the asphalt is melted, a solid-liquid mixture is formed inside the asphalt, the warm-mixing additive is added through the feeding channel 15, the stirring effect is improved, the contact surface between the warm-mixing additive and aggregates is reduced due to uniform mixing when the warm-mixing additive is in contact with the original mixture, and the warm-mixing additive can be stirred into the mixture as soon as possible in the stirring process, so that the volatilization of the warm-mixing additive is reduced; in the stirring process, the mixture rises along with the packing auger, and the packing auger also rotates around the output shaft 5, so that the mixture is prevented from rising too high along the packing auger and entering the gear.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a production system of high RAP volume warm mix asphalt mixture that energy saving and consumption reduction, includes jar body (1), its characterized in that: the stirring device (2) is arranged in the tank body (1), the stirring device (2) comprises at least one stirring roller (3), a motor (4) used for driving the stirring device (2) is arranged on the stirring device (2), the motor (4) comprises an output shaft (5), the stirring roller (3) is parallel to the output shaft (5) of the motor (4) and is eccentrically arranged, and the stirring device (2) enables the stirring roller (3) to rotate around the axis of the output shaft (5) while rotating around the axis of the stirring roller (3) under the working state of the motor (4);

agitating unit (2) are still including driving gear (6) of output shaft (5) bottom of locating motor (4), and the top of stirring roller (3) is connected with driven gear (7), and driving gear (6) and driven gear (7) mesh mutually, still include that the inner wall is equipped with ring gear (8) of the teeth of a cogwheel, and ring gear (8) mesh with driven gear (7) mutually, and ring gear (8) are connected with jar body (1).

2. The energy-saving consumption-reducing production system for the warm mix asphalt mixture with high RAP content according to claim 1, characterized by comprising the following steps: the stirring roller (3) adopts a screw conveyer with a shaft.

3. The energy-saving consumption-reducing production system for the high-RAP-content warm-mix asphalt mixture according to claim 2, characterized in that: be equipped with scraper (9) between blade and driven gear (7) of stirring roller (3), scraper (9) are located and are extended to the profile scope department when closing on stirring roller (3) around output shaft (5) rotation on jar body (1).

4. The energy-saving consumption-reducing production system for the high-RAP-content warm-mix asphalt mixture according to claim 3, characterized in that: the heating device (10) is arranged outside the tank body (1), the heating device (10) comprises at least one heating wire (11), the heating wire (11) is wound on the outer side wall of the tank body (1) and is connected with the scraper (9), and the scraper (9) is made of heat conducting materials.

5. The energy-saving consumption-reducing production system for the high-RAP-content warm-mix asphalt mixture according to claim 4, characterized in that: the heating device (10) and the tank body (1) are externally provided with a shell (13), and the tank body (1) is provided with a feeding channel (14), a feeding channel (15) and a discharging channel (16) which all penetrate through the shell (13) and the tank body (1).

6. The energy-saving consumption-reducing production system for the high-RAP-content warm-mix asphalt mixture according to claim 5, characterized in that: the bottom of the tank body (1) is provided with an inclined block (12) which inclines downwards towards the discharging channel (16).

7. The energy-saving consumption-reducing production system for the high-RAP-content warm-mix asphalt mixture according to claim 3, characterized in that: the outer surfaces of the stirring roller (3) and the scraper (9) are provided with anti-sticking layers.

8. The energy-saving consumption-reducing production system for the warm mix asphalt mixture with high RAP content according to claim 1, characterized by comprising the following steps: the bottom surface of the gear ring (8) is provided with a check ring (17) for supporting the driven gear (7), and a cavity for the stirring roller (3) to rotate around the output shaft (5) is arranged in the check ring (17).

9. The energy-saving consumption-reducing production system for the warm mix asphalt mixture with high RAP content according to claim 8, characterized in that: at least three rollers (18) or balls which are used for being in contact with the bottom surface of the driven gear (7) are uniformly distributed on the upper surface of the retainer ring (17) in an annular mode.

10. The energy-saving consumption-reducing production system for the high-RAP-content warm-mix asphalt mixture according to claim 9, characterized in that: the upper surface of the retainer ring (17) is annularly and uniformly distributed with at least three cylindrical rollers (18) which are used for contacting with the bottom surface of the driven gear (7), the bottom surface of the driven gear (7) is provided with a support ring (19) which is used for contacting with the cylindrical rollers (18), the support ring (19) and the driven gear (7) are coaxially arranged, and the ring width of the support ring (19) is smaller than the length of the cylindrical rollers (18).