Rubber powder asphalt stirrer

Abstract

The utility model discloses a rubber powder asphalt stirrer which comprises a first stirring cavity and a second stirring cavity which are arranged in a stirrer body, a first stirring mechanism is transversely arranged in the first stirring cavity, and a second stirring mechanism is transversely arranged in the second stirring cavity. The first stirring mechanism comprises a first stirring shaft and a first stirring piece arranged on the first stirring shaft, the second stirring mechanism comprises a second stirring shaft and a second stirring piece arranged on the second stirring shaft, and the first stirring piece and the second stirring piece are sequentially arranged in a staggered mode. According to the rubber powder asphalt stirrer provided by the utility model, the first stirring piece and the second stirring piece can be used for stirring and mixing asphalt mixtures in the first stirring cavity and the second stirring cavity respectively, and the stirring directions of the first arc-shaped stirring blade and the first stirring blade on the asphalt mixtures are different; and the stirring directions of the second arc-shaped stirring blades and the second stirring blades on the asphalt mixture are different, so that the stirring effect on the asphalt mixture can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production, in particular to a rubber powder asphalt agitator. Background Art

[0002] Asphalt pavement is a continuous pavement with the characteristics of driving comfort and easy maintenance, and has become the main form of pavement now. However, the high temperature stability, low temperature crack resistance, and water damage resistance of asphalt pavement are insufficient, which easily cause rutting, cracks, potholes and other diseases. In order to reduce the premature occurrence of diseases, modified asphalt materials are now mostly used. At present, SBS modified asphalt is the most commonly used modified asphalt material, but this asphalt modifier has the problem of high price and complex modification process. Adding waste rubber powder can make asphalt achieve the effect of modification. Rubber asphalt has the properties of high temperature stability, low temperature flexibility, anti-aging, anti-fatigue, and water damage resistance. It is an ideal environmentally friendly pavement material, mainly used in the stress absorption layer and surface layer of the road structure, greatly improving the road driving safety and comfort; the application of rubber asphalt is not only conducive to environmental protection and saving natural resources, but also conducive to improving the living environment of human beings.

[0003] In the rubber asphalt production process, waste tire raw materials are first processed into rubber powder particles, and then combined according to a certain coarse and fine grading ratio. At the same time, a variety of high polymer modifiers are added, and under fully mixed high temperature conditions (above 180°C), a modified asphalt binder material is formed after sufficient melting and expansion reaction with the base asphalt. The existing asphalt mixing production equipment has a mixing uniformity that is far from meeting the requirements of rubber asphalt production, which easily causes uneven mixing of asphalt and rubber powder. Utility Model Content

[0004] The utility model aims to provide a rubber powder asphalt agitator to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rubber powder asphalt mixer comprises a mixer body, a mixing chamber is arranged inside the mixer body, a feed port connected to the mixing chamber is arranged on the top of the mixer body, the mixing chamber comprises a first mixing chamber and a second mixing chamber arranged in sequence, a first mixing mechanism is horizontally arranged in the first mixing chamber, a second mixing mechanism is horizontally arranged in the second mixing chamber, the first mixing mechanism comprises a first mixing shaft and a first mixing member arranged on the first mixing shaft, the second mixing mechanism comprises a second mixing shaft and a second mixing member arranged on the second mixing shaft, the first mixing member and the second mixing member are arranged alternately in sequence, the first mixing member comprises a first mixing rod, a first mixing blade and a first mixing head connected in sequence, the first mixing head comprises a first cylindrical body and a first arc-shaped mixing sheet arranged around the first cylindrical body, the second mixing member comprises a second mixing rod, a second mixing blade and a second mixing head connected in sequence, the second mixing head comprises a second cylindrical body and a second arc-shaped mixing sheet arranged around the second cylindrical body, and there is at least a partial repeated rotation space between the first mixing head and the second mixing head.

[0007] In the above-mentioned rubber powder asphalt agitator, there are at least two groups of the first stirring members on the first stirring shaft, each group of the first stirring members has three first stirring members, and the three first stirring members are arranged in sequence and at intervals along the circumference of the first stirring shaft.

[0008] In the above-mentioned rubber powder asphalt agitator, there are at least two groups of the second stirring members on the second stirring shaft, each group of the second stirring members has three second stirring members, and the three second stirring members are arranged in sequence and at intervals along the circumference of the second stirring shaft.

[0009] In the above-mentioned rubber powder asphalt mixer, the first stirring blade and the second stirring blade both include a connecting beam and blades arranged on the connecting beam.

[0010] In the above-mentioned rubber powder asphalt mixer, the first columnar body is coaxially arranged with the connecting beam, and there are a plurality of the first arc-shaped stirring blades, which are arranged in sequence and spaced apart along the circumference of the first columnar body.

[0011] In the above-mentioned rubber powder asphalt mixer, the second columnar body is coaxially arranged with the connecting beam, and there are a plurality of second arc-shaped stirring blades, which are arranged in sequence and spaced apart along the circumference of the second columnar body.

[0012] The above-mentioned rubber powder asphalt mixer also includes a first guide assembly, which is installed on the first stirring shaft and is located between the first stirring member and the first stirring member.

[0013] The above-mentioned rubber powder asphalt mixer also includes a second guide assembly, which is installed on the second stirring shaft and is located between the second stirring member and the second stirring member.

[0014] In the above-mentioned rubber powder asphalt mixer, the first guide assembly and the second guide assembly both include an annular mounting seat and a guide plate arranged on the annular mounting seat, and the guide plate includes a first plate body with a larger size and a second plate body with a smaller size, and the first plate body and the second plate body are located on opposite sides of the annular mounting seat.

[0015] In the above technical scheme, the rubber powder asphalt agitator provided by the utility model comprises a first stirring chamber and a second stirring chamber arranged in sequence, a first stirring mechanism is horizontally placed in the first stirring chamber, and a second stirring mechanism is horizontally placed in the second stirring chamber, the first stirring mechanism comprises a first stirring shaft and a plurality of first stirring members arranged on the first stirring shaft, the second stirring mechanism comprises a second stirring shaft and a plurality of second stirring members arranged on the second stirring shaft, the first stirring members and the second stirring members are alternately arranged in sequence, when the first stirring shaft and the second stirring shaft are driven to rotate, the first stirring members and the second stirring members can respectively stir and mix the asphalt mixture in the first stirring chamber and the second stirring chamber, and the first arc-shaped stirring sheet and the first stirring blade have different stirring directions for the asphalt mixture, and the second arc-shaped stirring sheet and the second stirring blade have different stirring directions for the asphalt mixture, thereby improving the stirring effect on the asphalt mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 One of the internal structure schematic diagrams of the rubber powder asphalt mixer provided in the embodiment of the utility model;

[0018] Figure 2 The second schematic diagram of the internal structure of the rubber powder asphalt mixer provided in the embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Mixer body; 11. First mixing chamber; 12. First mixing chamber; 13. First guide assembly; 14. Second guide assembly; 15. Annular mounting seat; 16. First plate body; 17. Second plate body; 18. Driving mechanism; 2. First mixing mechanism; 21. First mixing shaft; 22. First mixing member; 23. First mixing rod; 24. First mixing blade; 25. First mixing head; 250. First columnar body; 251. First arc-shaped mixing blade; 3. Second mixing mechanism; 31. Second mixing shaft; 32. Second mixing member; 33. Second mixing rod; 34. Second mixing blade; 35. Second mixing head; 350. Second columnar body; 351. Second arc-shaped mixing blade. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-2 As shown, the utility model provides a rubber powder asphalt mixer, including a mixer body 1, a mixing chamber is arranged inside the mixer body 1, a feed port connected to the mixing chamber is arranged on the top of the mixer body 1, the mixing chamber includes a first mixing chamber 11 and a second mixing chamber 12 arranged in sequence, a first mixing mechanism 2 is horizontally arranged in the first mixing chamber 11, a second mixing mechanism 3 is arranged in the second mixing chamber 12, the first mixing mechanism 2 includes a first mixing shaft 21 and a plurality of first mixing members 22 arranged on the first mixing shaft 21, the second mixing mechanism 3 includes a second mixing shaft 31 and a plurality of second mixing members 32 arranged on the second mixing shaft 31, the first mixing member 22 and the second mixing member 32 are arranged on the second mixing shaft 31, and the first mixing member 22 and the second mixing member 32 are arranged on the second mixing shaft 31. 32 are arranged alternately in sequence, the first stirring member 22 includes a first stirring rod 23, a first stirring blade 24 and a first stirring head 25 connected in sequence, the first stirring head 25 includes a first cylindrical body 250 and a first arc-shaped stirring piece 251 arranged around the first cylindrical body 250, the second stirring member 32 includes a second stirring rod 33, a second stirring blade 34 and a second stirring head 35 connected in sequence, the second stirring head 35 includes a second cylindrical body 350 and a second arc-shaped stirring piece 351 arranged around the second cylindrical body 350, the first stirring head 25 and the second stirring head 35 have at least a partial repeated rotation space, and the directions of the first arc-shaped stirring piece 251 and the second arc-shaped stirring piece 351 are different.

[0023] Specifically, a mixing chamber is arranged inside a mixer body 1, a feed port is arranged on the top of the mixer body 1, asphalt and rubber powder to be mixed can be transported into the mixing chamber through the feed port, a discharge port is also arranged on the mixer body 1, the rubber powder asphalt after mixing can be output through the discharge port, the mixing chamber in this embodiment comprises a first mixing chamber 11 and a second mixing chamber 12 which are connected to each other, the first mixing chamber 11 and the second mixing chamber 12 are of the same size, a first mixing mechanism 2 is arranged in the first mixing chamber 11, the first mixing mechanism 2 comprises a first mixing shaft 21 and a first mixing member 22, the first mixing member 22 can be two groups, three groups or more groups, the multiple groups of first mixing members 22 are arranged in sequence along the axial direction of the first mixing shaft 21, each group of first mixing members 22 has at least two, each group of first mixing members 22 is arranged in sequence along the circumference of the first mixing shaft 21, the first mixing member 22 comprises a first mixing rod 23, a first mixing rod 24 which are connected in sequence, and a first mixing rod 25 which is connected in sequence. A stirring blade 24 and a first stirring head 25, the first stirring rod 23 is fixedly connected to the first stirring shaft 21, the first stirring blade 24 is fixed to the other end of the first stirring shaft 21, the first stirring blade 24 stirs and mixes the asphalt and the rubber powder during rotation, the first stirring head 25 is fixed to the other end of the first stirring blade 24, the first stirring head 25 includes a first cylindrical body 250 and a first arc-shaped stirring blade 251 arranged around the first cylindrical body 250, the first cylindrical body 250 and the first stirring blade 24 are fixedly arranged, there are multiple first arc-shaped stirring blades 251, and the multiple first arc-shaped stirring blades 251 are arranged in sequence along the circumference of the first cylindrical body 250. In this way, during operation, the first stirring blade 24 mixes and stirs the asphalt and the rubber powder along the first direction, and the first arc-shaped stirring blade 251 mixes and stirs the asphalt and the rubber powder along the second direction. The first direction and the second direction are different, so that the stirring effect can be improved.

[0024] In this embodiment, a second stirring mechanism 3 is arranged in the second stirring chamber 12, and the second stirring mechanism 3 includes a second stirring shaft 31 and a second stirring member 32. The second stirring members 32 can be two groups, three groups or more groups. The multiple groups of second stirring members 32 are arranged in sequence along the axial direction of the second stirring shaft 31. Each group of second stirring members 32 has at least two, and each group of second stirring members 32 is arranged in sequence along the circumference of the second stirring shaft 31. The second stirring member 32 includes a second stirring rod 33, a second stirring blade 34 and a second stirring head 35 connected in sequence. The second stirring rod 33 is fixedly connected to the second stirring shaft 31, and the second stirring blade 34 is fixed at the other end of the second stirring shaft 31. The second stirring blade 34 stirs and mixes the asphalt and rubber powder during rotation. The second stirring head 35 is fixed at the other end of the second stirring blade 34. The second stirring head 35 includes a second stirring rod 33, a second stirring blade 34 and a second stirring head 35. There are two cylindrical bodies 350 and a second arc-shaped stirring blade 351 arranged around the second cylindrical body 350. The second cylindrical body 350 is fixedly arranged with the second stirring blade 34. There are multiple second arc-shaped stirring blades 351, and the multiple second arc-shaped stirring blades 351 are arranged in sequence and spaced apart along the circumference of the second cylindrical body 350. In this way, during operation, the second stirring blade 34 mixes and stirs the asphalt and rubber powder along the first direction, and the second arc-shaped stirring blade 351 mixes and stirs the asphalt and rubber powder along the second direction. The first direction and the second direction are different, so that the stirring effect can be improved. A driving mechanism 18 is also arranged on the mixer body 1. The driving mechanism 18 includes a driving motor and a rotating driving component. The rotating driving component is connected to both the first stirring shaft 21 and the second stirring shaft 31. In this way, the first stirring shaft 21 and the second stirring shaft 31 can rotate synchronously through the driving mechanism 18.

[0025] In this embodiment, when the first stirring mechanism 2 and the second stirring mechanism 3 are arranged, the first stirring shaft 21 and the second stirring shaft 31 are both arranged in the horizontal direction, and the first stirring shaft 21 is located at the center of the first stirring chamber 11, and the second stirring shaft 31 is located at the center of the second stirring chamber 12, and along the axial direction of the first stirring shaft 21 or the second stirring shaft 31, the first stirring member 22 and the second stirring member 32 are alternately arranged in sequence: that is, a first connecting gap is formed between the first stirring member 22 and the first stirring member 22, and the second stirring member 32 corresponds to the first connecting gap, and a second connecting gap is formed between the second stirring member 32 and the second stirring member 32, and the first stirring member 22 corresponds to the second connecting gap, and there is an overlapping area when the first stirring head 25 of the first stirring mechanism 2 and the second stirring head 35 of the second stirring mechanism 3 are stirred, so that during the stirring process, the asphalt in the overlapping area can be stirred by the first stirring head 25 and the second stirring head 35, and the flow of the asphalt mixture in the first stirring chamber 11 and the second stirring chamber 12 can be promoted by the first arc-shaped stirring blade 251 and the second stirring blade.

[0026] The rubber powder asphalt mixer provided by the utility model comprises a mixer body 1, a mixing chamber comprising a first mixing chamber 11 and a second mixing chamber 12 which are arranged in sequence, a first mixing mechanism 2 being horizontally arranged in the first mixing chamber 11, and a second mixing mechanism 3 being arranged in the second mixing chamber 12, the first mixing mechanism 2 comprising a first mixing shaft 21 and a plurality of first mixing members 22 arranged on the first mixing shaft 21, the second mixing mechanism 3 comprising a second mixing shaft 31 and a plurality of second mixing members 32 arranged on the second mixing shaft 31, the first mixing members 22 and the second mixing members 32 being arranged alternately in sequence, when the first mixing shaft 21 and the second mixing shaft 31 are driven to rotate, the first mixing member 22 and the second mixing member 32 can respectively mix the asphalt mixture in the first mixing chamber 11 and the second mixing chamber 12, and the first arc-shaped mixing piece 251 and the first mixing blade 24 have different mixing directions for the asphalt mixture, and the second arc-shaped mixing piece 351 and the second mixing blade 34 have different mixing directions for the asphalt mixture, so that the mixing effect on the asphalt mixture can be improved.

[0027] In this embodiment, preferably, the number of groups of first stirring members 22 on the first stirring shaft 21 can be two, three or more groups, each group of first stirring members 22 has three first stirring members 22, and the three first stirring members 22 are arranged in sequence along the circumference of the first stirring shaft 21; the number of groups of second stirring members 32 on the second stirring shaft 31 can be two, three or more groups, each group of second stirring members 32 has three second stirring members 32, and the three second stirring members 32 are arranged in sequence along the circumference of the second stirring shaft 31, and the first stirring members 22 and the second stirring members 32 are arranged in sequence with staggered intervals.

[0028] In this embodiment, preferably, the first stirring blade 24 and the second stirring blade 34 both include a connecting beam and a blade arranged on the connecting beam; the two ends of the connecting beam of the first stirring blade 24 are respectively connected to the first stirring rod 23 and the first cylindrical body 250, and the two ends of the connecting beam of the second stirring blade 34 are respectively connected to the second stirring rod 33 and the second cylindrical body 350. The blades on the connecting beam can be one or two, and the two blades are located on the same plane and have an acute inclination angle with the rotation direction of the first stirring shaft 21 or the second stirring shaft 31.

[0029] In the present embodiment, preferably, the first columnar body 250 is coaxially arranged with the connecting beam, and there are multiple first arc-shaped stirring blades 251, and the multiple first arc-shaped stirring blades 251 are arranged in sequence and spaced apart along the circumference of the first columnar body 250; in this way, when the first stirring member 22 rotates, the first stirring member 22 stirs the asphalt mixture in the first stirring chamber 11, and at the same time, the first arc-shaped stirring blade 251 also stirs the asphalt mixture, and the stirring direction of the first arc-shaped stirring blade 251 is different from that of the blade, thereby improving the stirring effect.

[0030] In this embodiment, preferably, the second cylindrical body 350 is coaxially arranged with the connecting beam, and there are multiple second arc-shaped stirring blades 351, and the multiple second arc-shaped stirring blades 351 are arranged in sequence and spaced apart along the circumference of the second cylindrical body 350; in this way, when the second stirring member 32 rotates, the second stirring member 32 stirs the asphalt mixture in the second stirring chamber 12, and at the same time, the second arc-shaped stirring blades 351 also stir the asphalt mixture, and the stirring direction of the second arc-shaped stirring blades 351 is different from that of the blades, thereby improving the stirring effect.

[0031] In this embodiment, preferably, it also includes a first guide assembly 13 and a second guide assembly 14. The first guide assembly 13 is installed on the first stirring shaft 21 and is located between the first stirring members 22 and the first stirring members 22. The second guide assembly 14 is installed on the second stirring shaft 31 and is located between the second stirring members 32 and the second stirring members 32. The first guide assembly 13 and the second guide assembly 14 can promote the flow of asphalt mixture between the first stirring chamber 11 and the second stirring chamber 12, thereby improving the stirring and mixing effect of the asphalt mixed beam.

[0032] In this embodiment, preferably, the first guide assembly 13 and the second guide assembly 14 both include an annular mounting seat 15 and a guide plate arranged on the annular mounting seat 15, and the guide plate includes a first plate body 16 of larger size and a second plate body 17 of smaller size, and the first plate body 16 and the second plate body 17 are located on opposite sides of the annular mounting seat 15, so that the inclination directions of the first plate body 16 and the second plate body 17 are different, thereby improving the asphalt mixing effect.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rubber powder asphalt mixer, comprising a mixer body, a mixing chamber is arranged inside the mixer body, and a feed port connected to the mixing chamber is arranged on the top of the mixer body, characterized in that: The stirring chamber includes a first stirring chamber and a second stirring chamber which are arranged in sequence, a first stirring mechanism is placed horizontally in the first stirring chamber, and a second stirring mechanism is placed horizontally in the second stirring chamber, the first stirring mechanism includes a first stirring shaft and a first stirring member arranged on the first stirring shaft, the second stirring mechanism includes a second stirring shaft and a second stirring member arranged on the second stirring shaft, the first stirring member and the second stirring member are arranged alternately in sequence, the first stirring member includes a first stirring rod, a first stirring blade and a first stirring head which are connected in sequence, the first stirring head includes a first cylindrical body and a first arc-shaped stirring sheet arranged around the first cylindrical body, the second stirring member includes a second stirring rod, a second stirring blade and a second stirring head which are connected in sequence, the second stirring head includes a second cylindrical body and a second arc-shaped stirring sheet arranged around the second cylindrical body, and there is at least a partial repeated rotation space between the first stirring head and the second stirring head.

2. The rubber powder asphalt mixer according to claim 1, characterized in that: There are at least two groups of the first stirring members on the first stirring shaft, each group of the first stirring members has three first stirring members, and the three first stirring members are arranged in sequence and at intervals along the circumference of the first stirring shaft.

3. The rubber powder asphalt mixer according to claim 1, characterized in that: There are at least two groups of the second stirring members on the second stirring shaft, each group of the second stirring members has three second stirring members, and the three second stirring members are arranged in sequence and at intervals along the circumference of the second stirring shaft.

4. The rubber powder asphalt mixer according to claim 1, characterized in that: The first stirring blade and the second stirring blade each include a connecting beam and a blade disposed on the connecting beam.

5. The rubber powder asphalt mixer according to claim 4, characterized in that: The first columnar body is coaxially arranged with the connecting beam, and there are a plurality of the first arc-shaped stirring blades, which are sequentially spaced apart along the circumference of the first columnar body.

6. The rubber powder asphalt mixer according to claim 5, characterized in that: The second columnar body is coaxially arranged with the connecting beam, and there are a plurality of second arc-shaped stirring blades, which are sequentially spaced apart along the circumference of the second columnar body.

7. The rubber powder asphalt mixer according to claim 1, characterized in that: The invention also comprises a first guide assembly which is installed on the first stirring shaft and is located between the first stirring member and the second stirring member.

8. The rubber powder asphalt mixer according to claim 7, characterized in that: The invention also includes a second guide assembly, which is installed on the second stirring shaft and is located between the second stirring member and the second stirring member.

9. The rubber powder asphalt mixer according to claim 8, characterized in that: The first guide assembly and the second guide assembly both include an annular mounting seat and a guide plate disposed on the annular mounting seat, the guide plate includes a first plate body with a larger size and a second plate body with a smaller size, and the first plate body and the second plate body are located on opposite sides of the annular mounting seat.

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