CN223103409U - A step-by-step regeneration and mixing device for waste asphalt - Google Patents

Abstract

The utility model discloses a step-by-step regeneration stirring device for waste asphalt, and relates to the technical field of asphalt regeneration, including a crushing and screening component, wherein a stirring component is arranged on one side of an outer wall of the crushing and screening component; the crushing and screening component comprises a crushing bin, the bottom end of the crushing bin is fixedly connected with a screening bin, a screening frame is arranged on the inner wall of the screening bin, two sliding rods are fixedly installed on both sides of the outer wall of the screening frame, the stirring component comprises a heating and stirring drum, the top end of the heating and stirring drum is fixedly connected with an exhaust pipe, and the output end of the exhaust pipe is fixedly connected with an exhaust gas treatment box, the crushing and screening component can crush the asphalt, and then screen it through the screening frame, and some asphalt with a larger volume that is not completely crushed, and at this time, asphalt with a smaller volume that meets the requirements will fall from the screening frame for heating, thereby improving the heating effect on the asphalt, and the heating and stirring drum can treat the exhaust gas generated by the heating of the asphalt to prevent the exhaust gas from polluting the air.

Description

A step-by-step regeneration and mixing device for waste asphalt

Technical Field

The utility model relates to the technical field of asphalt regeneration, in particular to a step-by-step regeneration and stirring device for waste asphalt.

Background Art

In the process of modern transportation infrastructure construction and maintenance, the amount of waste asphalt materials continues to increase. With the renovation and reconstruction of roads, a large amount of waste asphalt mixtures are removed. If these waste asphalts are not properly handled, it will not only cause a huge waste of resources, but also have a negative impact on the environment, such as occupying a large amount of land space for stacking, and the harmful substances that may be contained in the waste asphalt will seep out and pollute the soil and groundwater. Therefore, the recycling of waste asphalt has important economic and environmental significance.

In the prior art, for example, a waste asphalt mixture recycling device in patent number CN221580463U includes a mixing drum, wherein a plurality of heating plates for heating asphalt are fixedly connected to the inner wall of the mixing drum, a crushing assembly for crushing waste asphalt is installed on the top of the mixing drum, a stirring assembly for stirring waste asphalt is installed inside the mixing drum, the crushing assembly includes a mounting frame fixedly connected to the top of the mixing drum, a triangular plate is fixedly connected to the inner bottom wall of the mounting frame, a fixed column is fixedly connected to the bottom of the mounting frame, and two rolling rollers are rotatably connected inside the mixing drum. The waste asphalt mixture recycling device can crush waste asphalt mixture, so that the recycling equipment has a better heating effect on waste asphalt mixture, thereby improving the practicality of the waste asphalt mixture recycling device.

Although the above patent can crush waste asphalt and then heat and stir it, there are still some problems. The asphalt may not be completely crushed and there may be some larger pieces of asphalt. These asphalts will affect the subsequent heating effect due to their large volume. At the same time, some toxic gases will be generated when the asphalt is heated inside the mixing drum. These gases will diffuse into the external environment and affect the air quality. For this reason, the utility model provides a step-by-step regeneration and stirring device for waste asphalt.

Utility Model Content

In view of the shortcomings of the prior art, the utility model provides a step-by-step regeneration and stirring device for waste asphalt, which solves the problem that asphalt may not be completely crushed and there are some larger pieces of asphalt. These larger pieces of asphalt will affect the subsequent heating effect due to their large volume. At the same time, the heating of asphalt inside the mixing drum will produce some toxic gases, which will diffuse into the external environment and affect the air quality.

To achieve the above purpose, the utility model is implemented through the following technical solutions: a step-by-step regeneration and stirring device for waste asphalt, comprising a crushing and screening component, the crushing and screening component is used to crush and screen the waste asphalt, and a stirring component is arranged on one side of the outer wall of the crushing and screening component;

The crushing and screening assembly comprises a crushing bin, the bottom end of the crushing bin is fixedly connected to the screening bin, the inner wall of the screening bin is provided with a screening frame, two sliding rods are fixedly installed on both sides of the outer wall of the screening frame, one end of the outer wall of the four sliding rods slides through the outer wall of the screening bin, the outer walls of the four sliding rods are sleeved with springs, a through groove is penetrated through the outer wall of the screening bin, an extrusion plate is fixedly installed on the outer wall of the screening frame, a first rotating rod is rotatably installed on the outer wall of the screening frame, and a cam is fixedly installed on one end of the outer wall of the first rotating rod;

The stirring assembly comprises a heating stirring drum, the top end of which is fixedly connected to an exhaust pipe, and the output end of which is fixedly connected to an exhaust gas treatment box.

Preferably, two crushing rollers are rotatably installed on the inner wall of the crushing bin, one end of the outer wall of the two crushing rollers passes through the outer wall of the crushing bin, and are fixedly installed with a first gear, the two first gears are meshed with each other, and a first motor is fixedly installed on the outer wall of the crushing bin, and the output shaft of the first motor passes through the inner wall of the crushing bin and is fixedly connected to one end of the outer wall of the crushing roller.

Preferably, one ends of the four springs are fixedly connected to the inner wall of the screening bin, and the other ends of the four springs are fixedly connected to the outer wall of the screening frame. A group of leakage holes are opened through the bottom end of the screening frame. The bottom end of the inner wall of the screening bin has a certain inclination angle. The bottom end of the inner wall of the screening bin is fixedly connected to a material guide frame. The output end of the material guide frame is fixedly connected to the heating and stirring drum. The outer wall of one of the two first gears and the outer wall of the first rotating rod are fixedly installed with transmission wheels. The outer walls of the two transmission wheels are sleeved with belts. The outer wall of the screening bin is hingedly connected with an opening and closing door.

Preferably, a second motor is fixedly installed on the top of the heating and stirring drum, the output shaft of the second motor passes through the top of the heating and stirring drum, and a stirring shaft is fixedly installed, a group of stirring blades are fixedly installed on the outer wall of the stirring shaft, a scraper is fixedly installed on the outer wall of the stirring shaft, and the scraper is arranged in contact with the inner wall of the heating and stirring drum.

Preferably, a bracket is fixedly installed on the inner wall of the exhaust pipe, a second rotating rod is rotatably installed on the top of the bracket, a fan blade is fixedly installed on the top of the second rotating rod, the bottom end of the second rotating rod passes through the top of the bracket and is fixedly installed with a third gear, and a second gear is fixedly sleeved on the outer wall of the stirring shaft, and the second gear is meshed with the third gear.

Preferably, a discharge valve is provided at the bottom end of the heating and mixing drum, a waste gas treatment device is provided inside the waste gas treatment box, and a heating device is provided inside the drum wall of the heating and mixing drum.

Beneficial Effects

The utility model provides a step-by-step regeneration and stirring device for waste asphalt. Compared with the prior art, it has the following beneficial effects:

(1) The step-by-step regeneration and stirring device of the waste asphalt starts the first motor, which drives the two crushing rollers to rotate, and then pours the waste asphalt into the crushing bin, crushes it through the two crushing rollers, and then the asphalt falls into the screening frame. At this time, there may be some large asphalt that has not been completely crushed. At this time, the small asphalt that meets the requirements will fall from the screening frame, and then slide into the heating and stirring drum through the guide frame, while the large asphalt will stay inside the screening frame. At the same time, when the crushing roller is rotating, it will drive the first rotating rod and the cam to rotate through the transmission wheel and the belt. During the rotation of the cam, the raised part will apply an outward force to the extrusion plate. Under the thrust of the cam, the screening frame slides outward along the sliding rod. When the cam rotates to the other end, the cam stops applying force to the extrusion plate. At this time, the screening frame is reset under the action of the spring elastic force. As the cam rotates continuously, the screening frame will make a reciprocating motion, thereby shaking continuously, preventing the asphalt in the screening frame from accumulating and clogging, thereby accelerating the screening efficiency of the screening frame for asphalt.

(2) In the step-by-step regeneration and stirring device for waste asphalt, the crushed asphalt enters the heating and stirring drum, which heats the asphalt. Then, the second motor is turned on, and the second motor drives the stirring shaft to rotate. The stirring shaft drives the stirring blades to rotate to stir the asphalt so that the asphalt can be evenly heated. Some exhaust gas is generated during the heating process of the asphalt. The stirring shaft drives the second gear to rotate during the rotation process, and the second gear drives the third gear to rotate. The third gear then drives the second rotating rod and the fan blades to rotate. The fan blades generate negative pressure during the rotation process, thereby sucking the exhaust gas generated in the heating and stirring drum into the exhaust pipe, and then passing the exhaust gas through the exhaust pipe into the exhaust gas treatment box, purifying and filtering the exhaust gas, and then discharging it into the air, thereby preventing the exhaust gas from polluting the air.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic diagram of the main structure of the utility model;

FIG3 is a cross-sectional view of the crushing and screening assembly of the utility model;

FIG4 is a cross-sectional view of the stirring assembly of the present invention.

In the figure: 1. Crushing and screening component; 11. Crushing bin; 12. Screening bin; 13. Crushing roller; 14. First motor; 15. First gear; 16. Driving wheel; 17. Belt; 18. First rotating rod; 19. Cam; 110. Through slot; 111. Extrusion plate; 112. Screening frame; 113. Slide bar; 114. Spring; 115. Material guide frame; 116. Opening and closing door; 2. Stirring component; 21. Heating and stirring drum; 22. Discharge valve; 23. Second motor; 24. Stirring shaft; 25. Stirring blade; 26. Scraper; 27. Second gear; 28. Third gear; 29. Bracket; 210. Second rotating rod; 211. Fan blade; 212. Exhaust pipe; 213. Waste gas treatment box.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The utility model provides two technical solutions:

Figures 1 to 4 show a first embodiment: a step-by-step regeneration and stirring device for waste asphalt, comprising a crushing and screening component 1, the crushing and screening component 1 is used to crush and screen the waste asphalt, and a stirring component 2 is provided on one side of the outer wall of the crushing and screening component 1;

The crushing and screening assembly 1 includes a crushing bin 11, the bottom end of the crushing bin 11 is fixedly connected to a screening bin 12, the inner wall of the screening bin 12 is provided with a screening frame 112, two sliding rods 113 are fixedly installed on both sides of the outer wall of the screening frame 112, one end of the outer wall of the four sliding rods 113 slides through the outer wall of the screening bin 12, and the outer walls of the four sliding rods 113 are sleeved with springs 114. Since the sliding rods 113 are fixedly installed on both sides of the screening frame 112, and the sliding rods 113 slide through the outer wall of the screening bin 12, this limits the screening The frame 112 can only move along the direction of the slide bar 113. A through slot 110 is formed through the outer wall of the screening bin 12. An extrusion plate 111 is fixedly mounted on the outer wall of the screening frame 112. The extrusion plate 111 passes through the through slot 110 to prevent the extrusion plate 111 from being hindered in movement. A first rotating rod 18 is rotatably mounted on the outer wall of the screening frame 112. A cam 19 is fixedly mounted on one end of the outer wall of the first rotating rod 18. When the first rotating rod 18 rotates, the cam 19 is driven to rotate. When the cam 19 rotates, the extrusion plate 111 is squeezed.

The stirring assembly 2 includes a heating stirring drum 21 , the top end of the heating stirring drum 21 is fixedly connected to an exhaust pipe 212 , and the output end of the exhaust pipe 212 is fixedly connected to an exhaust gas treatment box 213 .

Two crushing rollers 13 are rotatably installed on the inner wall of the crushing bin 11, one end of the outer wall of the two crushing rollers 13 penetrates the outer wall of the crushing bin 11, and are fixedly installed with a first gear 15, the two first gears 15 are meshed with each other, and a first motor 14 is fixedly installed on the outer wall of the crushing bin 11, the output shaft of the first motor 14 penetrates the inner wall of the crushing bin 11, and is fixedly connected to one end of the outer wall of the crushing roller 13, when the first motor 14 is turned on, it will drive one crushing roller 13 to rotate, and then one crushing roller 13 drives the other crushing roller 13 to rotate in the opposite direction through the two first gears 15.

One end of the four springs 114 is fixedly connected to the inner wall of the screening bin 12, and the other ends of the four springs 114 are fixedly connected to the outer wall of the screening frame 112. When the screening frame 112 is not squeezed, it will be reset under the action of the elastic force of the springs 114. A group of leakage holes are opened through the bottom end of the screening frame 112. The bottom end of the inner wall of the screening bin 12 has a certain inclination angle, so that the asphalt particles can slide into the guide frame 115. The bottom end of the inner wall of the screening bin 12 is fixedly connected with the guide frame 115, and the output end of the guide frame 115 is fixedly connected with the heating and stirring drum 21. The outer wall of one of the two first gears 15 and the outer wall of the first rotating rod 18 are fixedly installed with a transmission wheel 16, and the outer walls of the two transmission wheels 16 are sleeved with a belt 17. When the first gear 15 rotates, the first rotating rod 18 can be driven to rotate by the transmission wheel 16 and the belt 17. The outer wall of the screening bin 12 is hingedly connected with an opening and closing door 116, so that the interior of the screening bin 12 can be opened, which is convenient for the staff to clean the asphalt particles inside the screening frame 112.

1-4 show a second embodiment, which mainly differs from the first embodiment in that a second motor 23 is fixedly mounted on the top of the heating mixing drum 21, the output shaft of the second motor 23 passes through the top of the heating mixing drum 21, and a stirring shaft 24 is fixedly mounted thereon, a group of stirring blades 25 are fixedly mounted on the outer wall of the stirring shaft 24, a scraper 26 is fixedly mounted on the outer wall of the stirring shaft 24, and the scraper 26 is arranged in close contact with the inner wall of the heating mixing drum 21. When the second motor 23 is started, it can drive the stirring shaft 24 to rotate, and the stirring shaft 24 can further drive the scraper 26 to rotate on the inner wall of the heating mixing drum 21 to scrape off the asphalt attached to the inner wall of the heating mixing drum 21.

A bracket 29 is fixedly installed on the inner wall of the exhaust pipe 212, and a second rotating rod 210 is rotatably installed on the top of the bracket 29. A fan blade 211 is fixedly installed on the top of the second rotating rod 210. The bottom end of the second rotating rod 210 passes through the top of the bracket 29 and is fixedly installed with a third gear 28. A second gear 27 is fixedly sleeved on the outer wall of the stirring shaft 24. The second gear 27 is meshed with the third gear 28. When the second gear 27 rotates, it can drive the third gear 28 to rotate. The third gear 28 drives the fan blade 211 to rotate through the second rotating rod 210. When the fan blade 211 rotates, negative pressure can be generated to absorb the exhaust gas inside the heating stirring drum 21.

A discharge valve 22 is provided at the bottom end of the heating and mixing drum 21, and a waste gas treatment device is provided inside the waste gas treatment box 213. The waste gas treatment device can be provided with a solution for absorbing waste gas. When the waste gas passes through the solution, it will absorb and treat the waste gas. A heating device is provided inside the drum wall of the heating and mixing drum 21, and the heating device can be provided with an electric heating wire to heat the asphalt.

Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

During operation, the first motor 14 is turned on, and the first motor 14 drives the two crushing rollers 13 to rotate, and then the waste asphalt is poured into the crushing bin 11, and is crushed by the two crushing rollers 13, and then the asphalt falls into the screening frame 112. At this time, there may be some large asphalt that has not been completely crushed. At this time, the smaller asphalt that meets the requirements will fall from the screening frame 112, and then slide into the heating mixing drum 21 through the guide frame 115, while the larger asphalt will stay inside the screening frame 112. At the same time, when the crushing roller 13 is rotating, it will drive the first rotating rod 18 and the cam 19 to rotate through the transmission wheel 16 and the belt 17. During the rotation of the cam 19, the raised part will apply an outward force to the extrusion plate 111. Under the thrust of the cam 19, the screening frame 112 slides outward along the slide bar 113. When the cam 19 rotates to the other end, the cam 19 stops applying force to the extrusion plate 111. At this time, the screening frame 112 is reset under the action of the elastic force of the spring 114. As the cam 19 continues to rotate, the screening frame 112 will reciprocate, thereby shaking continuously to prevent the asphalt in the screening frame 112 from accumulating and clogging, thereby accelerating the screening efficiency of the asphalt by the screening frame 112. The crushed asphalt enters the heating and mixing drum 21. At this time, the heating and mixing drum 21 heats the asphalt, and then the second motor 23 is turned on. The second motor 23 drives the stirring shaft 24 to rotate, and the stirring shaft 24 drives the stirring blades 25 to rotate to stir the asphalt, so that the asphalt can be evenly heated. At the same time, the stirring shaft 24 will drive The scraper 26 rotates on the inner wall of the heating and mixing drum 21 to scrape off the asphalt attached to the inner wall of the heating and mixing drum 21. The asphalt will generate some exhaust gas during the heating process, and the stirring shaft 24 will drive the second gear 27 to rotate during the rotation, and the second gear 27 will drive the third gear 28 to rotate, and the third gear 28 will then drive the second rotating rod 210 and the fan blade 211 to rotate. The fan blade 211 will generate negative pressure during the rotation, thereby sucking the exhaust gas generated in the heating and mixing drum 21 into the exhaust pipe 212, and then passing the exhaust gas from the exhaust pipe 212 to the exhaust gas treatment box 213, purifying and filtering the exhaust gas, and then discharging it into the air, thereby preventing the exhaust gas from polluting the air. When the asphalt is heated, the discharge valve 22 is opened to discharge the asphalt from the inside of the heating and mixing drum 21.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The step-by-step regeneration stirring device for the waste asphalt comprises a crushing and screening assembly (1), and is characterized in that the crushing and screening assembly (1) is used for crushing and screening the waste asphalt, and one side of the outer wall of the crushing and screening assembly (1) is provided with a stirring assembly (2);

The crushing and screening assembly (1) comprises a crushing bin (11), a screening bin (12) is fixedly communicated with the bottom end of the crushing bin (11), a screening frame (112) is arranged on the inner wall of the screening bin (12), two sliding rods (113) are fixedly arranged on two sides of the outer wall of the screening frame (112), one end of the outer wall of each sliding rod (113) is slidably penetrated through the outer wall of the screening bin (12), springs (114) are sleeved on the outer wall of each sliding rod (113), through grooves (110) are formed in the outer wall of the screening bin (12) in a penetrating mode, an extrusion plate (111) is fixedly arranged on the outer wall of the screening frame (112), a first rotating rod (18) is rotatably arranged on the outer wall of the screening frame (112), and a cam (19) is fixedly arranged at one end of the outer wall of the first rotating rod (18);

The stirring assembly (2) comprises a heating stirring cylinder (21), an exhaust pipe (212) is fixedly communicated with the top end of the heating stirring cylinder (21), and an exhaust gas treatment box (213) is fixedly communicated with the output end of the exhaust pipe (212).

2. The device for regenerating and stirring waste asphalt step by step is characterized in that two crushing rollers (13) are rotatably arranged on the inner wall of the crushing bin (11), one ends of the outer walls of the two crushing rollers (13) penetrate through the outer wall of the crushing bin (11) and are fixedly provided with first gears (15), the two first gears (15) are meshed with each other, a first motor (14) is fixedly arranged on the outer wall of the crushing bin (11), and an output shaft of the first motor (14) penetrates through the inner wall of the crushing bin (11) and is fixedly connected with one end of the outer wall of the crushing roller (13).

3. The device for regenerating and stirring waste asphalt step by step according to claim 2, wherein one end of each of the four springs (114) is fixedly connected with the inner wall of the screening bin (12), the other ends of the four springs (114) are fixedly connected with the outer wall of the screening frame (112), a group of leakage holes are formed in the bottom end of the screening frame (112) in a penetrating mode, a certain inclination angle is formed in the bottom end of the inner wall of the screening bin (12), a material guiding frame (115) is fixedly communicated with the bottom end of the inner wall of the screening bin (12), the output end of the material guiding frame (115) is fixedly communicated with the heating stirring cylinder (21), driving wheels (16) are fixedly installed on the outer wall of one of the two first gears (15) and the outer wall of the first rotating rod (18), a belt (17) is sleeved on the outer wall of each driving wheel (16), and an opening and closing door (116) is hinged to the outer wall of the screening bin (12).

4. The device for regenerating and stirring waste asphalt step by step according to claim 1, wherein a second motor (23) is fixedly arranged at the top end of the heating stirring cylinder (21), an output shaft of the second motor (23) penetrates through the top end of the heating stirring cylinder (21) and is fixedly provided with a stirring shaft (24), a group of stirring blades (25) are fixedly arranged on the outer wall of the stirring shaft (24), a scraping plate (26) is fixedly arranged on the outer wall of the stirring shaft (24), and the scraping plate (26) is attached to the inner wall of the heating stirring cylinder (21).

5. The device for the step-by-step regeneration and stirring of the waste asphalt according to claim 4, wherein a support (29) is fixedly arranged on the inner wall of the exhaust pipe (212), a second rotating rod (210) is rotatably arranged at the top end of the support (29), fan blades (211) are fixedly arranged at the top end of the second rotating rod (210), a third gear (28) is fixedly arranged at the bottom end of the second rotating rod (210) penetrating through the top end of the support (29), a second gear (27) is fixedly sleeved on the outer wall of the stirring shaft (24), and the second gear (27) is meshed with the third gear (28).

6. The device for regenerating and stirring waste asphalt step by step according to claim 1, wherein a discharge valve (22) is arranged at the bottom end of the heating and stirring cylinder (21), an exhaust gas treatment device is arranged in the exhaust gas treatment box (213), and a heating device is arranged in the cylinder wall of the heating and stirring cylinder (21).