Asphalt mixture three-shaft stirrer

Abstract

The utility model discloses an asphalt mixture three-shaft stirrer which comprises a shell, a first stirring shaft, a second stirring shaft and a third stirring shaft are arranged in the shell in parallel, a plurality of first reverse pushing blades and a plurality of first forward pushing blades are sequentially arranged on the periphery of the first stirring shaft at intervals, and a plurality of second reverse pushing blades and a plurality of second forward pushing blades are sequentially arranged on the periphery of the third stirring shaft. A plurality of second reverse pushing blades and a plurality of second forward pushing blades are sequentially arranged on the periphery of the second stirring shaft at intervals, a plurality of radial blades are arranged on the periphery of the third stirring shaft at intervals, and the first stirring shaft and the second stirring shaft are used for stirring the asphalt mixture on the upper portion of the shell; and the third stirring shaft is used for stirring the asphalt mixture at the bottom of the shell. According to the three-shaft stirrer for the asphalt mixture, the stirring strength is enhanced through the first stirring shaft and the second stirring shaft, the third stirring shaft is used for stirring the asphalt mixture at the bottom of the shell, the asphalt mixture at the bottom of the shell is fully stirred, and the stirring uniformity is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mixers, and particularly relates to a three-shaft mixer for asphalt mixtures. Background Art

[0002] In the chemical industry, mixers have always been important chemical equipment. When traditional asphalt is mixed with other materials, the asphalt and other mixtures are first poured into a mixing tank, and then stirred with a mixing paddle. The stirred asphalt mixture is discharged by pouring it out through the pipe orifice of the mixing tank.

[0003] Asphalt mixtures are generally stirred using a double-horizontal-shaft mixer. The asphalt is added to the double-horizontal-shaft mixer and stirred by two mixing shafts. The mixing effect is limited, the asphalt easily adheres to the inner wall of the machine body, and blockage may occur during discharging. The mixing is uneven, and the asphalt mixture at the bottom of the machine body cannot be fully stirred either.

[0004] Therefore, there is an urgent need to design a three-shaft mixer for asphalt mixtures to solve the problems of uneven mixing of the existing mixers and insufficient mixing at the bottom of the machine body as mentioned above. Summary of the Utility Model

[0005] To solve the technical problems of uneven mixing of the existing mixers and insufficient mixing at the bottom of the machine body mentioned in the background art, a three-shaft mixer for asphalt mixtures is provided to solve the above problems.

[0006] To achieve the above object, the specific technical solution of the three-shaft mixer for asphalt mixtures of the present utility model is as follows:

[0007] A three-shaft mixer for asphalt mixtures includes a housing. Inside the housing, a first mixing shaft, a second mixing shaft, and a third mixing shaft are arranged in parallel. The first mixing shaft and the second mixing shaft are both arranged at the upper part of the housing, and the third mixing shaft is arranged at the lower part of the housing. A plurality of first reverse pushing blades and a plurality of first forward pushing blades are sequentially arranged at intervals on the outer periphery of the first mixing shaft. A plurality of second reverse pushing blades and a plurality of second forward pushing blades are sequentially arranged at intervals on the outer periphery of the second mixing shaft. A plurality of radial blades are arranged at intervals on the outer periphery of the third mixing shaft. The first mixing shaft and the second mixing shaft are used to stir the asphalt mixture at the upper part of the housing, and the third mixing shaft is used to stir the asphalt mixture at the bottom of the housing.

[0008] Further, the sides of the first mixing shaft, the second mixing shaft, and the third mixing shaft are arranged in an inverted triangle.

[0009] Further, two first reverse pushing blades and five first forward pushing blades are sequentially arranged at intervals on the outer periphery of the first mixing shaft. Two second reverse pushing blades and five second forward pushing blades are sequentially arranged at intervals on the outer periphery of the second mixing shaft.

[0010] Furthermore, a first included angle is formed between the axis of the first forward pushing blade and the axis of the first stirring shaft, and a second included angle is formed between the axis of the first reverse pushing blade and the axis of the first stirring shaft, and the first included angle and the second included angle are complementary.

[0011] Furthermore, a third included angle is formed between the axis of the second forward pushing blade and the axis of the second stirring shaft, and a fourth included angle is formed between the axis of the second reverse pushing blade and the axis of the second stirring shaft, and the third included angle and the fourth included angle are complementary.

[0012] Furthermore, the first reverse pushing blade and the first forward pushing blade on the first stirring shaft are respectively arranged corresponding to the second forward pushing blade and the second reverse pushing blade on the second stirring shaft.

[0013] Furthermore, a first driving assembly and a second driving assembly are further included. The first driving assembly is used to drive the first stirring shaft and the second stirring shaft to rotate synchronously in opposite directions, and the second driving assembly is used to drive the third stirring shaft to rotate.

[0014] Furthermore, the first driving assembly is arranged on one side of the housing, and the second driving assembly is arranged on the other side of the housing.

[0015] Furthermore, the first driving assembly includes a first driving member, a first gear, a second gear and a third gear. The driving end of the first driving member is connected to the first gear. The second gear is arranged at one end of the first stirring shaft, and the third gear is arranged at one end of the second stirring shaft. One of the first gear and the second gear or the third gear meshes, and the second gear and the third gear mesh. The first driving member drives the first gear to rotate so as to drive the first stirring shaft and the second stirring shaft to rotate.

[0016] Furthermore, the second driving member includes a second driving member, a belt, a first pulley and a second pulley. The driving end of the second driving member is connected to the first pulley. The second pulley is arranged at one end of the third stirring shaft. The second pulley is connected to the first pulley through the belt. The first driving member drives the first pulley to rotate so as to drive the third driving shaft to rotate.

[0017] The asphalt mixture three-axis mixer of the present utility model has the following advantages:

[0018] A plurality of first reverse blades and a plurality of first forward blades are sequentially and spaced apart on the outer periphery of the first stirring shaft, and a plurality of second reverse blades and a plurality of second forward blades are sequentially and spaced apart on the outer periphery of the second stirring shaft. The first stirring shaft and the second stirring shaft are used for stirring the asphalt mixture in the upper part of the housing. The first stirring shaft and the second stirring shaft make the movement of the asphalt mixture during stirring present a form of combined circumferential flow and convection, enhancing the stirring intensity. A plurality of radial blades are spaced apart on the outer periphery of the third stirring shaft. The third stirring shaft is used for stirring the asphalt mixture at the bottom of the housing, increasing the movement form of the asphalt mixture during stirring, fully stirring the asphalt mixture at the bottom of the housing, increasing the stirring uniformity, and reducing the inefficient stirring area. Description of the Drawings

[0019] Figure 1 Structural schematic of the three-shaft mixer for asphalt mixture of the present invention Figure 1 ;

[0020] Figure 2 Structural schematic of the three-shaft mixer for asphalt mixture of the present invention Figure 2 ;

[0021] Figure 3 Structural schematic diagrams of the first stirring shaft, the second stirring shaft and the third stirring shaft of the present invention;

[0022] Figure 4 Flow diagram of the first stirring shaft and the second stirring shaft stirring the asphalt mixture of the present invention;

[0023] Figure 5 Structural schematic diagram of the first reverse blade of the present invention;

[0024] Figure 6 Structural schematic diagram of the first forward blade of the present invention.

[0025] Explanation of the marks in the figure:

[0026] 1. Housing; 2. First stirring shaft; 21. First reverse blade; 22. First forward blade; 3. Second stirring shaft; 31. Second reverse blade; 32. Second forward blade; 4. Third stirring shaft; 41. Radial blade; 5. First drive assembly; 51. First drive member; 52. First gear; 53. Second gear; 54. Third gear; 6. Second drive assembly; 61. Second drive member; 62. Belt; 63. First pulley; 64. Second pulley. Detailed Description of the Invention

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Those skilled in the art can understand that although some of the embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present utility model and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0029] The following refers to the attached Figure 1 to the attached Figure 6 Describe the asphalt mixture three-shaft mixer of the present utility model.

[0030] As Figure 1 and Figure 2 shown, the asphalt mixture three-shaft mixer in the present utility model includes a housing 1. Inside the housing 1, a first stirring shaft 2, a second stirring shaft 3 and a third stirring shaft 4 are arranged in parallel. The first stirring shaft 2 and the second stirring shaft 3 are both arranged at the upper part of the housing 1, and the third stirring shaft 4 is arranged at the lower part of the housing 1. A plurality of first reverse pushing blades 21 and a plurality of first forward pushing blades 22 are sequentially arranged at intervals on the outer periphery of the first stirring shaft 2. A plurality of second reverse pushing blades 31 and a plurality of second forward pushing blades 32 are sequentially arranged at intervals on the outer periphery of the second stirring shaft 3. A plurality of radial blades 41 are arranged at intervals on the outer periphery of the third stirring shaft 4. The first stirring shaft 2 and the second stirring shaft 3 are used for stirring the asphalt mixture at the upper part of the housing 1, and the third stirring shaft 4 is used for stirring the asphalt mixture at the bottom of the housing 1. In this embodiment, the sides of the first stirring shaft 2, the second stirring shaft 3 and the third stirring shaft 4 are arranged in an inverted triangle.

[0031] A plurality of first reverse blades 21 and a plurality of first forward blades 22 are sequentially and spacedly arranged on the outer periphery of the first stirring shaft 2, and a plurality of second reverse blades 31 and a plurality of second forward blades 32 are sequentially and spacedly arranged on the outer periphery of the second stirring shaft 3. The first stirring shaft 2 and the second stirring shaft 3 are used for stirring the asphalt mixture in the upper part of the housing 1. The first stirring shaft 2 and the second stirring shaft 3 make the movement of the asphalt mixture during stirring present a form combining circumferential flow and convective flow, enhancing the stirring intensity. A plurality of radial blades 41 are spacedly arranged on the outer periphery of the third stirring shaft 4. The third stirring shaft 4 is used for stirring the asphalt mixture at the bottom of the housing 1, increasing the movement form of the asphalt mixture during stirring, fully stirring the asphalt mixture at the bottom of the housing 1, increasing the stirring uniformity, and reducing the inefficient stirring area.

[0032] Further, as Figures 1 to 3 shown, two first reverse blades 21 and five first forward blades 22 are sequentially and spacedly arranged on the outer periphery of the first stirring shaft 2, and two second reverse blades 31 and five second forward blades 32 are sequentially and spacedly arranged on the outer periphery of the second stirring shaft 3. A first included angle is formed between the first forward blade 22 and the axis of the first stirring shaft 2, and a second included angle is formed between the first reverse blade 21 and the axis of the first stirring shaft 2. The first included angle and the second included angle are complementary. A third included angle is formed between the second forward blade 32 and the axis of the second stirring shaft 3, and a fourth included angle is formed between the second reverse blade 31 and the axis of the second stirring shaft 3. The third included angle and the fourth included angle are complementary. In this embodiment, the first reverse blade 21 and the second reverse blade 31 have the same structure, and the first forward blade 22 and the second forward blade 32 have the same structure.

[0033] Further, as Figures 1 to 6 shown, the first reverse blade 21 and the first forward blade 22 on the first stirring shaft 2 are respectively arranged corresponding to the second forward blade 32 and the second reverse blade 31 on the second stirring shaft 3. That is, two first reverse blades 21 are spacedly arranged at one end of the first stirring shaft 2 close to the housing 1, and five first forward blades 22 are spacedly arranged at the other end of the first stirring shaft 2 close to the housing 1. Five second forward blades 32 are spacedly arranged at one end of the second stirring shaft 3 close to the housing 1, and two second reverse blades 31 are spacedly arranged at the other end of the second stirring shaft 3 close to the housing 1. The first reverse blade 21 corresponds to the second forward blade 32, and the first forward blade 22 corresponds to the second reverse blade 31.

[0034] By arranging a first reverse pushing blade 21 and a first forward pushing blade 22 on the first stirring shaft 2, the angles formed between the first reverse pushing blade 21 and the first forward pushing blade 22 and the first stirring shaft 2 are complementary. A second reverse pushing blade 31 and a second forward pushing blade 32 are arranged on the second stirring shaft 3, and the angles formed between the second reverse pushing blade 31 and the second forward pushing blade 32 and the second stirring shaft 3 are complementary. During the stirring process of the asphalt mixture in the housing 1, the first stirring shaft 2 and the second stirring shaft 3 make the movement of the asphalt mixture during the stirring process present a form combining circumferential flow and convective flow, enhancing the stirring intensity, so that the asphalt mixture can be fully stirred. The first stirring shaft 2 and the second stirring shaft 3 make the movement of the asphalt mixture during the stirring process present a form combining circumferential flow and convective flow as Figure 4 shown by the arrows in

[0035] Furthermore, as Figure 1 shown, the three-shaft mixer for asphalt mixture in the present utility model further includes a first driving assembly 5 and a second driving assembly 6. The first driving assembly 5 is used to drive the first stirring shaft 2 and the second stirring shaft 3 to rotate synchronously in opposite directions, and the second driving assembly 6 is used to drive the third stirring shaft 4 to rotate. In this embodiment, the first driving assembly 5 is arranged on one side of the housing 1, and the second driving assembly 6 is arranged on the other side of the housing 1.

[0036] Specifically, as Figure 1 shown, the first driving assembly 5 includes a first driving member 51, a first gear 52, a second gear 53 and a third gear 54. The driving end of the first driving member 51 is connected to the first gear 52. The second gear 53 is arranged at one end of the first stirring shaft 2, and the third gear 54 is arranged at one end of the second stirring shaft 3. One of the first gear 52 and the second gear 53 or the third gear 54 is meshed, and the second gear 53 and the third gear 54 are meshed. The first driving member 51 drives the first gear 52 to rotate, so as to make the first stirring shaft 2 and the second stirring shaft 3 rotate.

[0037] Furthermore, as Figure 2 shown, the second driving member 61 includes a second driving member 61, a belt 62, a first pulley 63 and a second pulley 64. The driving end of the second driving member 61 is connected to the first pulley 63. The second pulley 64 is arranged at one end of the third stirring shaft 4. The second pulley 64 is connected to the first pulley 63 through the belt 62. The first driving member 51 drives the first pulley 63 to rotate, so as to make the third driving shaft rotate.

[0038] The working principle of the three-shaft mixer for asphalt mixture in the present utility model is as follows:

[0039] Start the triaxial mixer for asphalt mixture. The first driving member 51 drives the first gear 52 to rotate, thereby causing the second gear 53 engaged with the first gear 52 to rotate. The second gear 53 drives the first stirring shaft 2 to rotate. At the same time, the second gear 53 drives the third gear 54 engaged with the second gear 53 to rotate, and the third gear 54 drives the second stirring shaft 3 to rotate, so that the first stirring shaft 2 and the second stirring shaft 3 rotate synchronously. At the same time, the rotation directions of the first stirring shaft 2 and the second stirring shaft 3 are opposite, realizing sufficient stirring of the asphalt mixture. The second driving member 61 drives the first pulley 63 to rotate, and the first pulley 63 drives the second pulley 64 to rotate through the belt 62, thereby causing the third stirring shaft 4 to rotate. The third stirring shaft 4 is used to stir the asphalt mixture at the bottom of the housing 1, increasing the movement form of the asphalt mixture during stirring, fully stirring the asphalt mixture at the bottom of the housing 1, increasing the stirring uniformity, and reducing the inefficient stirring area.

[0040] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A three-shaft asphalt mixer, characterized in that: It includes a shell, in which a first stirring shaft, a second stirring shaft and a third stirring shaft are arranged in parallel, the first stirring shaft and the second stirring shaft are both arranged at the upper part of the shell, the third stirring shaft is arranged at the lower part of the shell, a plurality of first reverse thrust blades and a plurality of first forward thrust blades are arranged in sequence on the outer circumference of the first stirring shaft, a plurality of second reverse thrust blades and a plurality of second forward thrust blades are arranged in sequence on the outer circumference of the second stirring shaft, a plurality of radial blades are arranged at intervals on the outer circumference of the third stirring shaft, the first stirring shaft and the second stirring shaft are used to stir the asphalt mixture at the upper part of the shell, and the third stirring shaft is used to stir the asphalt mixture at the bottom of the shell.

2. The asphalt mixture three-shaft mixer according to claim 1, characterized in that: The first stirring shaft, the second stirring shaft and the third stirring shaft are arranged in an inverted triangle shape on their sides.

3. The asphalt mixture three-shaft mixer according to claim 1, characterized in that: Two first reverse thrust blades and five first forward thrust blades are sequentially arranged at intervals on the outer circumference of the first stirring shaft, and two second reverse thrust blades and five second forward thrust blades are sequentially arranged at intervals on the outer circumference of the second stirring shaft.

4. The asphalt mixture three-shaft mixer according to claim 3, characterized in that: A first angle is formed between the first forward thrust blade and the axis of the first stirring shaft, a second angle is formed between the first reverse thrust blade and the axis of the first stirring shaft, and the first angle and the second angle are complementary.

5. The asphalt mixture three-shaft mixer according to claim 4, characterized in that: A third angle is formed between the second forward thrust blade and the axis of the second stirring shaft, a fourth angle is formed between the second reverse thrust blade and the axis of the second stirring shaft, and the third angle and the fourth angle are complementary.

6. The asphalt mixture three-shaft mixer according to claim 5, characterized in that: The first reverse thrust blade and the first forward thrust blade on the first stirring shaft are respectively arranged corresponding to the second forward thrust blade and the second reverse thrust blade on the second stirring shaft.

7. The asphalt mixture three-shaft mixer according to claim 1, characterized in that: It also includes a first drive assembly and a second drive assembly, the first drive assembly is used to drive the first stirring shaft and the second stirring shaft to rotate synchronously in opposite directions, and the second drive assembly is used to drive the third stirring shaft to rotate.

8. The asphalt mixture three-shaft mixer according to claim 7, characterized in that: The first driving assembly is arranged on one side of the housing, and the second driving assembly is arranged on the other side of the housing.

9. The asphalt mixture three-shaft mixer according to claim 7, characterized in that: The first driving assembly includes a first driving member, a first gear, a second gear and a third gear. The driving end of the first driving member is connected to the first gear. The second gear is arranged at one end of the first stirring shaft. The third gear is arranged at one end of the second stirring shaft. The first gear is meshed with the second gear or one of the third gears. The second gear is meshed with the third gear. The first driving member drives the first gear to rotate so that the first stirring shaft and the second stirring shaft rotate.

10. The asphalt mixture three-shaft mixer according to claim 7, characterized in that: The second driving member includes a second driving member, a belt, a first pulley and a second pulley. The driving end of the second driving member is connected to the first pulley. The second pulley is arranged at one end of the third stirring shaft. The second pulley is connected to the first pulley through a belt. The first driving member drives the first pulley to rotate so that the third driving shaft rotates.

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