Mixing device for asphalt concrete processing

Abstract

The utility model provides a mixing device for asphalt concrete processing, and belongs to the field of asphalt concrete mixing equipment. According to the technical scheme, the device comprises a mixing tank and a stirring mechanism arranged in a tank body, the mixing tank comprises a supporting outer tank body, a rotating inner tank body is arranged in the supporting outer tank body, a discharging pipe is arranged at the bottom of the rotating inner tank body, a top cover is arranged at the top of the supporting outer tank body, the stirring mechanism is arranged on the top cover, and the stirring mechanism comprises a stirring motor arranged on the top cover. The end part of a motor shaft of the stirring motor penetrates through the top cover and is arranged in the rotary inner tank body, a stirring shaft is arranged, a spiral conveying paddle is arranged at the bottom end of the stirring shaft, the spiral conveying paddle is arranged in the discharging pipe, and a plurality of stirring plates are arranged above the spiral conveying paddle and on the stirring shaft. The stirring device has the beneficial effects that the structure is simple, the use is convenient, and asphalt concrete can be fully mixed and stirred through the rotation of the rotary inner tank body and the stirring of the stirring shaft.

Description

Technical Field

[0001] This utility model relates to the field of asphalt concrete mixing equipment, and in particular to a mixing device for asphalt concrete processing. Background Technology

[0002] In the production process of asphalt concrete, mixing is a crucial step, and traditional asphalt concrete processing mainly relies on mixing equipment.

[0003] Although existing asphalt concrete mixing equipment has made many progress in technology and performance, there are still some significant technical defects and shortcomings in practical applications. Existing mixing equipment still has room for improvement in terms of mixing uniformity. Traditional designs often rely on the mechanical movement of mixing blades. Although this method can achieve mixing to a certain extent, due to the limitations of the movement trajectory of the mixing blades and the mixing speed, local uneven mixing may still occur during the mixing process. This unevenness problem is particularly prominent when dealing with large batches of mixtures, and directly affects the overall performance of asphalt concrete. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for asphalt concrete processing that is simple in structure and easy to use, and can fully mix asphalt concrete by rotating the inner tank in combination with the stirring of the stirring shaft.

[0005] This utility model is achieved through the following measures:

[0006] A mixing device for asphalt concrete processing, characterized in that it includes a mixing tank and a stirring mechanism disposed in the tank.

[0007] The mixing tank includes a supporting outer tank body, a rotating inner tank body is provided inside the supporting outer tank body, a discharge pipe is provided at the bottom of the rotating inner tank body, a top cover is provided at the top of the supporting outer tank body, and the stirring mechanism is provided on the top cover;

[0008] The stirring mechanism includes a stirring motor mounted on the top cover. The motor shaft of the stirring motor passes through the top cover and is located inside the rotating inner tank, where a stirring shaft is provided. A spiral conveying blade is provided at the bottom end of the stirring shaft. The spiral conveying blade is located in the discharge pipe. Several stirring plates are provided above the spiral conveying blade and on the stirring shaft.

[0009] A reinforcing support frame is provided around the stirring shaft and inside the top cover. A bearing seat is provided on the reinforcing support frame, and the stirring shaft is disposed in the bearing seat.

[0010] Preferably, the bottom of the supporting outer tank is provided with supporting legs or is mounted on a designated bracket;

[0011] An annular sealing ring is provided on the inner side of the top cover corresponding to the position of the rotating inner tank. An exhaust valve and a feed inlet are also provided on the top cover.

[0012] A heating element (which is existing technology and will not be described in detail here) is provided between the supporting outer tank and the rotating inner tank. The heating element is located on the inner wall of the supporting outer tank.

[0013] The specific features of this utility model also include:

[0014] The inner wall of the outer tank is provided with an upper annular support frame and a lower annular support frame. The cross-section of the upper annular support frame and the lower annular support frame is U-shaped. The horizontal opening of the upper annular support frame and the lower annular support frame is oriented towards the rotating inner tank.

[0015] The outer wall of the rotating inner tank is provided with an upper annular support plate and a lower annular support plate. The upper annular support plate is disposed in the upper annular support frame, and the lower annular support plate is disposed in the lower annular support frame.

[0016] The upper annular support frame has several pairs of corresponding first support wheels on its upper and lower inner walls. The upper annular support plate is disposed between the upper and lower first support wheels. The upper and lower side wall surfaces of the upper annular support plate are provided with annular limiting grooves. The wheel bodies of the first support wheels are disposed in the annular limiting grooves.

[0017] The lower annular support frame has several pairs of corresponding second support wheels on its upper and lower inner walls. The lower annular support plate is positioned between the upper and lower second support wheels. The upper and lower side wall surfaces of the lower annular support plate are provided with annular limiting grooves, and the wheel bodies of the second support wheels are positioned in the annular limiting grooves.

[0018] The outer wall of the rotating inner tank is provided with an annular toothed ring, and the outer wall of the supporting outer tank is provided with a through arc-shaped opening corresponding to the position of the annular toothed ring. A drive motor is provided below the arc-shaped opening and on the supporting outer tank. A drive gear is provided at the end of the motor shaft of the drive motor, and the edge of the drive gear passes through the arc-shaped opening and meshes with the annular toothed ring.

[0019] Both the supporting outer tank and the rotating inner tank are composed of cylindrical tanks and conical tanks arranged vertically. The bottom of the conical tank of the rotating inner tank is provided with the discharge pipe, the end of the discharge pipe is provided with a control valve, and the outer walls on both sides of the discharge pipe are provided with vibration motors.

[0020] The outer support tank is a split structure, consisting of a pair of equal half-shells joined together. The upper and lower annular support frames are also joined together by two half-annular frames. Mounting side plates are provided at the joints of the half-shells. Several corresponding mounting holes are provided on the opposite mounting side plates on both sides. Mounting bolts are provided in the corresponding mounting holes, and mounting nuts are provided through the mounting bolts.

[0021] During stirring, the heating element is preheated to heat the mixing tank. The raw materials to be stirred are injected into the rotating inner tank through the feed inlet. Then, the stirring motor is started, which drives the stirring shaft to rotate, thereby mixing the raw materials in the rotating inner tank. At the same time, the drive motor is started, which drives the drive gear to rotate, thereby driving the rotating inner tank to rotate, cooperating with the stirring shaft for joint stirring. Meanwhile, the spiral conveyor blades rotate with the stirring shaft, which not only further mixes the mixture at the bottom of the rotating inner tank, but also serves to discharge the material.

[0022] The advantages of this utility model are: simple structure and easy to use. By rotating the inner tank and mixing the stirring shaft, asphalt concrete can be fully mixed. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0024] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the half-shell in an embodiment of this utility model.

[0027] The attached figures are labeled as follows: 1. Mixing tank; 2. Stirring mechanism; 201. Stirring motor; 202. Stirring shaft; 203. Stirring plate; 204. Spiral conveyor blade; 3. Supporting outer tank; 301. Arc-shaped opening; 302. Mounting side plate; 303. Annular sealing ring; 4. Rotating inner tank; 401. Discharge pipe; 402. Upper annular support plate; 403. Lower annular support plate; 5. Lower annular support frame; 501. First support wheel; 6. Upper annular support frame; 601. Second support wheel; 7. Top cover; 8. Drive motor; 9. Drive gear; 10. Annular gear ring. Detailed Implementation

[0028] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0029] See Figure 1-4 A mixing device for asphalt concrete processing includes a mixing tank 1 and a mixing mechanism 2 disposed in the tank.

[0030] The mixing tank 1 includes a supporting outer tank 3, a rotating inner tank 4 is provided inside the supporting outer tank 3, a discharge pipe 401 is provided at the bottom of the rotating inner tank 4, and a top cover 7 is provided at the top of the supporting outer tank 3, with a stirring mechanism 2 provided on the top cover 7.

[0031] The stirring mechanism 2 includes a stirring motor 201 mounted on the top cover 7. The end of the motor shaft of the stirring motor 201 passes through the top cover 7 and is located inside the rotating inner tank 4. A stirring shaft 202 is also provided thereon. A spiral conveying blade 204 is provided at the bottom of the stirring shaft 202. The spiral conveying blade 204 is located in the discharge pipe 401. Several stirring plates 203 are provided above the spiral conveying blade 204 and on the stirring shaft 202.

[0032] A reinforcing support frame is provided on the periphery of the stirring shaft 202 and the inner side of the top cover 7. A bearing seat is provided on the reinforcing support frame, and the stirring shaft 202 is placed in the bearing seat.

[0033] Preferably, the bottom of the outer tank body 3 is provided with support legs or is mounted on a designated bracket;

[0034] An annular sealing ring 303 is provided on the inner side of the top cover 7 corresponding to the position of the rotating inner tank 4. An exhaust valve and a feed inlet are also provided on the top cover 7.

[0035] A heating element (which is existing technology and will not be described in detail here) is provided between the supporting outer tank 3 and the rotating inner tank 4. The heating element is located on the inner wall of the supporting outer tank 3.

[0036] The inner wall of the outer tank 3 is provided with an upper annular support frame 6 and a lower annular support frame 5. The cross-section of the upper annular support frame 6 and the lower annular support frame 5 is U-shaped, and the horizontal opening of the upper annular support frame 6 and the lower annular support frame 5 is set towards the rotating inner tank 4.

[0037] The outer wall of the rotating inner tank 4 is provided with an upper annular support plate 402 and a lower annular support plate 403. The upper annular support plate 402 is located in the upper annular support frame 6, and the lower annular support plate 403 is located in the lower annular support frame 5.

[0038] The upper annular support frame 6 has several pairs of corresponding first support wheels 501 on its upper and lower inner walls. The upper annular support plate 402 is located between the upper and lower first support wheels 501. The upper and lower side walls of the upper annular support plate 402 are provided with annular limiting grooves. The wheel body of the first support wheel 501 is located in the annular limiting groove.

[0039] The lower annular support frame 5 has several pairs of corresponding second support wheels 601 on its upper and lower inner walls. The lower annular support plate 403 is located between the upper and lower second support wheels 601. The upper and lower side wall surfaces of the lower annular support plate 403 are provided with annular limiting grooves, and the wheel bodies of the second support wheels 601 are located in the annular limiting grooves.

[0040] The outer wall of the rotating inner tank 4 is provided with an annular gear ring 10, and the outer wall of the supporting outer tank 3 is provided with a through arc-shaped opening 301 corresponding to the position of the annular gear ring 10. A drive motor 8 is provided below the arc-shaped opening 301 and on the supporting outer tank 3. A drive gear 9 is provided at the end of the motor shaft of the drive motor 8. The edge of the drive gear 9 passes through the arc-shaped opening 301 and meshes with the annular gear ring 10.

[0041] Both the outer tank 3 and the rotating inner tank 4 are composed of cylindrical tanks and conical tanks arranged vertically. The bottom of the conical tank of the rotating inner tank 4 is provided with a discharge pipe 401, the end of the discharge pipe 401 is provided with a control valve, and the outer walls on both sides of the discharge pipe 401 are provided with vibration motors.

[0042] The outer tank body 3 is a split structure, consisting of a pair of equal half-shells joined together. The upper annular support frame 6 and the lower annular support frame 5 are also joined together from two end half-annular frames. Mounting side plates 302 are provided at the joints of the half-shells. Several corresponding mounting holes are provided on the opposite mounting side plates 302 on both sides. Mounting bolts are provided in the corresponding mounting holes, and mounting nuts are provided through the mounting bolts.

[0043] During mixing, the heating element is preheated to heat the mixing tank 1. The raw materials to be mixed are injected into the rotating inner tank 4 through the feed port. Then, the stirring motor 201 is started, which drives the stirring shaft 202 to rotate, thereby mixing the raw materials in the rotating inner tank 4. At the same time, the drive motor 8 is started, which drives the drive gear 9 to rotate, thereby driving the rotating inner tank 4 to rotate, and cooperating with the stirring shaft 202 for joint mixing. Meanwhile, the spiral conveyor blade 204 rotates with the stirring shaft 202, which can not only further mix the mixture at the bottom of the rotating inner tank, but also play a role in discharging the material.

[0044] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A mixing device for asphalt concrete processing, characterized by, Including mixing tank, be provided with stirring mechanism in the mixing tank; The mixing tank comprises a supporting outer tank body, a rotating inner tank body is arranged inside the supporting outer tank body, a discharge pipe is arranged at the bottom of the rotating inner tank body, a top cover is arranged at the top of the supporting outer tank body, and the stirring mechanism is arranged on the top cover; The stirring mechanism comprises a stirring motor arranged on the top cover, the motor shaft end of the stirring motor is arranged inside the rotating inner tank body through the top cover and is provided with a stirring shaft, a spiral conveying paddle is arranged at the bottom end of the stirring shaft, the spiral conveying paddle is arranged in the discharge pipe, and a plurality of stirring plates are arranged above the spiral conveying paddle and on the stirring shaft.

2. The mixing device for asphalt concrete processing according to claim 1, characterized in that, The inner wall of the supporting outer tank body is provided with an upper annular support frame and a lower annular support frame, the upper annular support frame and the lower annular support frame are U-shaped in cross section, and the opening positions of the upper annular support frame and the lower annular support frame are arranged towards the rotating inner tank body; The outer wall of the rotating inner tank body is provided with an upper annular support plate and a lower annular support plate, the upper annular support plate is arranged in the upper annular support frame, and the lower annular support plate is arranged in the lower annular support frame.

3. The mixing device for asphalt concrete processing according to claim 2, characterized in that A plurality of pairs of first supporting wheels are arranged on the inner walls of the upper and lower sides of the upper annular support frame, the upper annular support plate is arranged between the upper and lower first supporting wheels, annular limiting grooves are formed in the surfaces of the side walls on the upper and lower sides of the upper annular support plate, and the wheel bodies of the first supporting wheels are arranged in the annular limiting grooves. A plurality of pairs of second supporting wheels are arranged on the inner walls of the upper and lower sides of the lower annular support frame, the lower annular support plate is arranged between the upper and lower second supporting wheels, annular limiting grooves are formed in the surfaces of the side walls on the upper and lower sides of the lower annular support plate, and the wheel bodies of the second supporting wheels are arranged in the annular limiting grooves.

4. The mixing device for asphalt concrete processing according to claim 3, characterized in that The outer wall of the rotating inner tank body is provided with an annular gear ring, the supporting outer tank body is provided with an arc-shaped opening penetrating the annular gear ring, a driving motor is arranged below the arc-shaped opening and on the supporting outer tank body, a driving gear is arranged at the end of the motor shaft of the driving motor, and the edge position of the driving gear is engaged with the annular gear ring through the arc-shaped opening.

5. The mixing apparatus for asphalt concrete processing according to claim 4, wherein The supporting outer tank body and the rotating inner tank body are both composed of cylindrical tank bodies and conical tank bodies arranged in layers, the conical tank body of the rotating inner tank body is provided with the discharge pipe at the bottom, the end of the discharge pipe is provided with a control valve, and vibration motors are arranged on the outer walls on both sides of the discharge pipe.

Images