Raw material screening device for preparing recycled asphalt mixture
By designing a screening device for regenerating asphalt mixture, using motor-driven conveying and dispersing equipment, the problem of low screening efficiency of asphalt mixture in the prior art is solved, and efficient raw material screening and dispersing is achieved.
Patent Information
- Application Number
- CN202422059219.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, in the screening process of asphalt mixture, the single screening effect is poor, which can easily lead to raw material accumulation and affect the screening efficiency.
A raw material screening device for the preparation of recycled asphalt mixture is designed, including a conveying box, a screening box and a filter box. The conveying, dispersing and efficient screening of the asphalt mixture is achieved through motor-driven spiral conveying blades, rotating rods, dispersing rods and eccentric wheels.
This device can effectively break up the agglomerated bitumen mixture, improve screening efficiency, reduce raw material accumulation, and improve the preparation efficiency of bitumen mixture.
Smart Images
Figure CN223027811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt preparation, and particularly relates to a raw material screening device for preparing recycled asphalt mixture. Background Technique
[0002] Recycled asphalt mixture refers to a recycled asphalt mixture prepared by crushing and screening the recovered asphalt mixture (RAP) blocks, mixing them in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel, and then adding new asphalt and fillers. During the recycling and re-preparation process of the raw materials of the recycled asphalt mixture, the aged asphalt mixture blocks dug out from the road need to be broken up and then screened. During the screening process, the single screening effect is not good, and it is easy for the raw materials to accumulate on the screening plate, affecting the screening efficiency of the asphalt mixture. Therefore, we propose a raw material screening device for preparing recycled asphalt mixture. Content of the Utility Model
[0003] In order to solve the above problems, the utility model provides a raw material screening device for preparing recycled asphalt mixture to solve the problems mentioned in the above background technique.
[0004] A raw material screening device for preparing recycled asphalt mixture in the utility model includes a conveying box and a screening box. A first motor is fixedly arranged on the side wall of the conveying box, a spiral conveying blade is arranged at the output end of the first motor, a second motor is fixedly arranged on the side wall of the screening box, a rotating rod is arranged at the output end of the second motor, a driving gear is fixedly sleeved on the outside of the rotating rod, the driving gear is meshed with a driven gear, the driven gear is sleeved on another rotating rod, and dispersing rods are arranged on both sides of the two rotating rods. A third motor is arranged on the bottom side wall of the screening box, an eccentric wheel is arranged at the output end of the third motor, a filter box is in contact with the side of the eccentric wheel, and a telescopic rod is fixedly connected to the other side of the filter box, and a spring is sleeved on the outside of the telescopic rod.
[0005] In the above solution, a feed hopper is arranged on one side of the conveying box, and a guide pipe is arranged on one side of the top of the conveying box.
[0006] In the above solution, a feed pipe is arranged on the top of the screening box, and the guide pipe is communicated with the feed pipe.
[0007] In the above solution, a bracket is fixedly arranged at the lower end of the conveying box, and universal wheels are arranged at the lower end of the bracket.
[0008] In the above solution, a sliding rod is arranged on the side wall of the screening box, the sliding rod is slidably connected with a slider, and the slider is fixedly arranged on both sides of the filter box.
[0009] In the above solution, one end of the spring is connected to the side wall of the screening box, and the other end is connected to the side wall of the filter box.
[0010] In the above solution, three filter plates are fixedly arranged in the filter box. The mesh numbers of the three filter plates increase from top to bottom, and the bottom ends of the three filter plates are connected to the discharge pipe.
[0011] The advantages and beneficial effects of the present utility model are as follows: The present utility model provides a raw material screening device for preparing recycled asphalt mixture. Through the first motor, the spiral conveying blade, the feed hopper and the guide pipe, it is convenient to put the recycled asphalt mixture raw materials into the screening box, saving time and effort; through the second motor, the rotating rod, the driving gear, the driven gear and the dispersing rod, the agglomerated asphalt mixture raw materials can be dispersed, facilitating subsequent screening; through the third motor, the eccentric wheel, the telescopic rod, the spring and the slider, the screening efficiency of the recycled asphalt mixture raw materials in the filter box is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0013] Figure 1 It is a schematic structural diagram of the present utility model.
[0014] Figure 2 It is a top view of the rotating rod structure of the present utility model.
[0015] Figure 3 It is a top view of the filter box structure of the present utility model.
[0016] Figure 4 It is a schematic internal structure diagram of the filter box of the present utility model.
[0017] In the figure: 1. Conveying box 11. Feed hopper 12. First motor 13. Spiral conveying blade 14. Support 15. Universal wheel 16. Guide pipe 2. Screening box 21. Feed pipe 22. Second motor 23. Rotating rod 24. Driving gear 25. Driven gear 26. Dispersing rod 3. Third motor 31. Eccentric wheel 32. Telescopic rod 33. Spring 34. Slider 35. Slide bar 4. Filter box 41. Filter plate 42. Discharge pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will further describe the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.
[0019] AsFigures 1-4 As shown in the figure, the utility model is a raw material screening device for preparing recycled asphalt mixture, including a conveying box 1 and a screening box 2. A first motor 12 is fixedly arranged on the side wall of the conveying box 1, and a spiral conveying blade 13 is arranged at the output end of the first motor 12. A feeding hopper 11 is arranged on one side of the conveying box 1, and a material guiding pipe 16 is arranged on one side of the top of the conveying box 1. By putting the crushed asphalt mixture raw materials into the feeding hopper 11 and turning on the power switch of the first motor 12, the spiral conveying blade 13 at the output end of the first motor 12 starts to rotate in the conveying box 1 through a bearing. The spiral conveying blade 13 can convey the asphalt mixture raw materials. A feeding pipe 21 is arranged on the top of the screening box 2, and the material guiding pipe 16 is communicated with the feeding pipe 21. The materials are conveyed to the material guiding pipe 16 and then put into the feeding pipe 21 from the material guiding pipe 16, and then into the screening box 2, completing the conveying and input of the asphalt mixture raw materials, and avoiding the workers climbing to the high place of the screening box 2 for feeding, which is time-consuming and laborious.
[0020] A second motor 22 is fixedly arranged on the side wall of the screening box 2, and a rotating rod 23 is arranged at the output end of the second motor 22. A driving gear 24 is fixedly sleeved outside the rotating rod 23. The driving gear 24 is meshed and connected with a driven gear 25. The driven gear 25 is sleeved on another rotating rod 23. Dispersing rods 26 are arranged on both sides of the two rotating rods 23. When the raw materials are put into the interior of the screening box 2, by turning on the external power switch of the second motor 22, the rotating rod 23 at the output end of the second motor 22 starts to rotate. The rotation of the rotating rod 23 here can drive the driving gear 24 to rotate. The driving gear 24 drives the driven gear 25 to rotate. The driven gear 25 drives the other rotating rod 23 to rotate. Furthermore, the two rotating rods 23 can drive the externally connected dispersing rods 26 to rotate. The dispersing rods 26 are arranged in a staggered manner, and the dispersing rods 26 can disperse the asphalt mixture raw materials, facilitating the subsequent screening of the asphalt mixture raw materials.
[0021] A third motor 3 is arranged on the bottom side wall of the screening box 2, and an eccentric wheel 31 is arranged at the output end of the third motor 3. A filter box 4 is in contact with the side of the eccentric wheel 31. The other side of the filter box 4 is fixedly connected with a telescopic rod 32, and a spring 33 is sleeved outside the telescopic rod 32. When the dispersed asphalt mixture raw materials are guided into the filter box 4, by turning on the switch of the third motor 3, the eccentric wheel 31 at the output end of the third motor 3 starts to rotate. The eccentric wheel 31 can push the filter box 4, and the filter box 4 is connected with the spring 33 and the telescopic rod 32 on the side. One end of the spring 33 is connected with the side wall of the screening box 2, and the other end is connected with the side wall of the filter box 4. During the process of the eccentric wheel 31 pushing the filter box 4, the filter box 4 can compress the spring 33, and further enable the filter box 4 to shake left and right in the screening box 2.
[0022] In the above solution, a bracket 14 is fixedly provided at the lower end of the conveying box 1, and universal wheels 15 are provided at the lower end of the bracket 14. By means of the universal wheels 15 provided at the lower end of the bracket 14, it is convenient to move the conveying box 1.
[0023] In the above solution, a sliding rod 35 is provided on the side wall of the screening box 2, and the sliding rod 35 is slidably connected to a slider 34. The slider 34 is fixedly arranged on both sides of the filtering box 4. During the left - right shaking of the filtering box 4, the slider 34 can slide on the sliding rod 35, which can play a guiding role in the shaking of the filtering box 4.
[0024] In the above solution, three filter plates 41 are fixedly provided in the filtering box 4. The number of meshes of the three filter plates 41 increases from top to bottom. The bottom ends of the three filter plates 41 are connected to a discharge pipe 42. After the raw materials of the asphalt mixture are scattered and enter the filtering box 4, under the push of the eccentric wheel 31, the screening efficiency of the filter plates 41 can be improved. Raw material particles of different sizes of the asphalt mixture are filtered through filter plates 41 with different numbers of meshes, and after the filtering is completed, they are discharged from the position of the discharge pipe 42 and collected centrally.
[0025] Working principle:
[0026] For this raw material screening device for preparing recycled asphalt mixture, during specific operation, the conveying box 1 is moved to the side of the screening box 2, and the guiding pipe 16 is introduced into the feeding pipe 21. By putting the raw materials of the asphalt mixture into the feeding hopper 11 and turning on the power switch of the first motor 12, the spiral conveying blade 13 can convey the raw materials of the asphalt mixture and then put them into the screening box 2. By turning on the external power switch of the second motor 22, the rotating rod 23 at the output end of the second motor 22 starts to rotate. The driving gear 24 drives the driven gear 25 to rotate, and the driven gear 25 drives the other rotating rod 23 to rotate. Thus, the two rotating rods 23 can drive the externally connected dispersing rods 26 to rotate. The dispersing rods 26 can disperse the raw materials of the asphalt mixture. The dispersed raw materials are introduced into the filtering box. By turning on the switch of the third motor 3, the eccentric wheel 31 can push the filtering box 4, so that the filtering box 4 can shake left and right in the screening box 2, which can improve the screening efficiency of the filter plates 41. Raw material particles of different sizes of the recycled asphalt mixture are filtered through filter plates 41 with different numbers of meshes, and after the filtering is completed, they are discharged from the position of the discharge pipe 42 and collected centrally.
[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A raw material screening device for preparing recycled asphalt mixture, comprising a conveying box (1) and a screening box (2), characterized in that: A first motor (12) is fixedly provided on the side wall of the conveying box (1), and a spiral conveying blade (13) is provided at the output end of the first motor (12). A second motor (22) is fixedly provided on the side wall of the screening box (2), and a rotating rod (23) is provided at the output end of the second motor (22). A driving gear (24) is fixedly sleeved on the outside of the rotating rod (23), and the driving gear (24) is meshedly connected to a driven gear (25). The driven gear (25) is sleeved on another rotating rod (23), and both sides of the two rotating rods (23) are provided with breaking rods (26). A third motor (3) is provided on the side wall of the bottom of the screening box (2), and an eccentric wheel (31) is provided at the output end of the third motor (3). A filter box (4) is contacted with the side of the eccentric wheel (31), and the other side of the filter box (4) is fixedly connected to a telescopic rod (32), and a spring (33) is sleeved on the outside of the telescopic rod (32).
2. A raw material screening device for preparing recycled asphalt mixture according to claim 1, characterized in that: A feed hopper (11) is provided on one side of the conveying box (1), and a material guide pipe (16) is provided on one side of the top of the conveying box (1).
3. A raw material screening device for preparing recycled asphalt mixture according to claim 2, characterized in that: A feed pipe (21) is provided on the top of the screening box (2), and the material guide pipe (16) is connected to the feed pipe (21).
4. The raw material screening device for preparing recycled asphalt mixture according to claim 1, characterized in that: A bracket (14) is fixedly provided at the lower end of the conveying box (1), and a universal wheel (15) is provided at the lower end of the bracket (14).
5. The raw material screening device for preparing recycled asphalt mixture according to claim 1, characterized in that: The side wall of the screening box (2) is provided with a sliding rod (35), the sliding rod (35) is slidably connected to a sliding block (34), and the sliding block (34) is fixedly arranged on both sides of the filtering box (4).
6. The raw material screening device for preparing recycled asphalt mixture according to claim 1, characterized in that: One end of the spring (33) is connected to the side wall of the screening box (2), and the other end is connected to the side wall of the filtering box (4).
7. The raw material screening device for preparing recycled asphalt mixture according to claim 1, characterized in that: Three filter plates (41) are fixedly arranged in the filter box (4), the mesh sizes of the three filter plates (41) increase from top to bottom, and the bottom ends of the three filter plates (41) are connected to the discharge pipe (42).