Multi-horizontal-shaft continuous stirring system

By designing a multi-shaft structure in the continuous mixing system, two-stage mixing is achieved, solving the problem of insufficient uniformity of the mixture in the existing technology, improving the mixing effect, and reducing the equipment footprint and failure rate.

CN224060133UActive Publication Date: 2026-03-31ZHEJIANG GEOTECHNICAL FOUNDATION CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing continuous twin-shaft mixers operate as single units, resulting in only single-stage mixing and insufficient uniformity of the mixture.

Method used

A multi-shaft continuous mixing system is designed. A first mixer and a second mixer are respectively installed at the upper and lower ends of a stepped support frame, and their discharge ports are connected to the feed ports to achieve two-stage mixing. The twin-shaft design is adopted to improve the uniformity of the mixture.

Benefits of technology

It significantly improves the uniformity of the mixture, reduces the equipment footprint, and lowers the system failure rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-horizontal-shaft continuous stirring system which comprises a stepped bearing frame, a plurality of horizontal shafts and a plurality of horizontal shafts, the first stirrer is arranged at the upper end of the stepped bearing frame through a mounting frame I, and a first feeding hole and a discharging hole are formed in the first stirrer; the second stirring machine is arranged at the lower end of the stepped bearing frame through a mounting frame II and is vertically staggered with the first stirring machine; and the second stirrer is also provided with a discharge port for discharging. According to the utility model, the first stirrer and the second stirrer are respectively arranged at the upper end and the lower end of the stepped bearing frame, and the discharge hole in the first stirrer is connected with the second feed hole in the second stirrer; therefore, stirred materials entering the first stirrer through the first feeding port can enter the second stirrer through the second feeding port to be continuously stirred for the second time, two-stage stirring treatment of the stirred materials is achieved, each stage is matched with double horizontal shafts to obtain multi-horizontal-shaft continuous stirring, and the uniformity of mixed materials is remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of mixing technology, specifically to a multi-axis continuous mixing system. Background Technology

[0002] Continuous twin-shaft mixers are mainly used for the continuous mixing of road base and subbase materials. This equipment is suitable for the construction of stabilized road base materials for ordinary highways, high-grade highways (including expressways), urban roads, sports fields, airports, docks, etc. However, current continuous twin-shaft mixers primarily operate as single units. For example, a continuous twin-shaft mixer (publication number CN218688326U) includes a frame, mixing tank, mixing device, and lubrication device. The mixing tank has an inlet and a cover. The mixing device includes two sets of agitation components and a linkage component. The agitation components include a geared motor, a mixing shaft, and mixing blades. The output end of the geared motor is connected to the mixing shaft, and the output shaft of the geared motor is perpendicular to the mixing shaft. Multiple spaced mixing blades are connected to the mixing shaft. The linkage component includes two synchronous gears respectively mounted on the mixing shaft and meshing with each other. The aforementioned continuous twin-shaft mixer can continuously mix road base and subbase stabilizing materials, but since it is a single-machine operation, it can only perform single-stage mixing. Therefore, this application proposes a multi-shaft continuous mixing system to further improve the uniformity of the mixture. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a multi-shaft continuous stirring system, which aims to solve the problems mentioned above.

[0004] This utility model provides a multi-shaft continuous stirring system, including:

[0005] A stepped load-bearing frame with a step at the middle of its side end;

[0006] The first mixer is mounted on the upper end of the stepped load-bearing frame via a mounting bracket, and has a first feed inlet and a discharge outlet on it;

[0007] The second mixer is mounted on the lower end of the stepped load-bearing frame via a mounting bracket, and is vertically intersected with the first mixer, so that the second feed port and the discharge port on it are vertically aligned and fixedly connected; it is also equipped with a discharge port for discharging materials.

[0008] The stepped load-bearing frame is equipped with guardrails on both sides.

[0009] In one embodiment, the first mixer comprises a first stirring cylinder, a first driving motor, a first speed reducer and two first spiral blades, the two first spiral blades are horizontally staggered and arranged in the first stirring cylinder, the first driving motor is arranged at the front end of the mounting frame, and the first spiral blades are connected with the first driving motor through the first speed reducer.

[0010] The second mixer comprises a second stirring cylinder, a second driving motor, a second speed reducer and two second spiral blades, the two second spiral blades are horizontally staggered and arranged in the second stirring cylinder, the second driving motor is arranged at the rear end of the mounting frame two, and the second spiral blades are connected with the second driving motor through the second speed reducer.

[0011] The two first spiral blades are driven by the first gears at the ends of the two first spiral blades, and the output end of the first speed reducer is coaxially connected with a first gear through a shaft coupling.

[0012] The two second spiral blades are driven by the second gears at the ends of the two second spiral blades, and the output end of the second speed reducer is coaxially connected with a second gear through a shaft coupling.

[0013] In one embodiment, the second mixer comprises a second stirring cylinder, a second spiral blade and a transmission mechanism, the second spiral blade is two, and the two second spiral blades are horizontally staggered and arranged in the second stirring cylinder, and the rotating shaft of one of the first spiral blades is drivingly connected with the rotating shaft of one of the second spiral blades through the transmission mechanism.

[0014] The transmission mechanism comprises a first transmission wheel, a second transmission wheel, a third transmission wheel and a fourth transmission wheel, the first transmission wheel is coaxially connected with the rotating shaft of one of the first spiral blades, and the fourth transmission wheel is coaxially connected with the rotating shaft of one of the second spiral blades; the second transmission wheel and the third transmission wheel are rotatably arranged on one side of the stepped load-bearing frame through a support, the first transmission wheel is drivingly connected with the second transmission wheel through a transmission belt, the second transmission wheel is coaxially connected with the third transmission wheel, and the third transmission wheel is drivingly connected with the fourth transmission wheel through a transmission belt.

[0015] In one embodiment, the first stirring cylinder and the second stirring cylinder are provided with observation windows for observing the internal conditions. The first feeding port is arranged at the front end of the first stirring cylinder, and an arc-shaped guide plate for belt conveyor feeding is arranged on the first feeding port.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The application sets first and second mixers on the upper and lower ends of a stepped load-bearing frame, and connects the discharge port on the first mixer with the second feed port on the second mixer, so that the mixed material entering the first mixer through the first feed port can enter the second mixer through the second feed port for secondary continuous mixing, and finally be discharged from the discharge port at the bottom of the second mixer, so as to realize two-stage mixing of the mixed material, and each stage is equipped with double horizontal shafts to obtain multi-horizontal shaft continuous mixing, thereby significantly improving the uniformity of the mixed material.

[0018] 2. The multi-horizontal shaft continuous mixing system of the application adopts a stepped design, which can avoid the problem of connecting a conveying belt in the middle of the traditional two-stage series connection, significantly reduce the equipment floor area, and reduce the failure rate of the whole system. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only preferred embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a schematic diagram of the multi-horizontal shaft continuous mixing system of the application.

[0021] Figure 2 It is a structural schematic diagram of the multi-horizontal shaft continuous mixing system of the application.

[0022] Figure 3 It is a schematic diagram of the first and second mixers of the application.

[0023] Figure 4 It is a schematic diagram of the stepped load-bearing frame and the second mixer of the application.

[0024] Figure 5 It is a schematic diagram of the stepped load-bearing frame and the second mixer of the application.

[0025] Figure 6 It is a schematic diagram of the first mixer of the application.

[0026] Figure 7 It is a side view of the multi-horizontal shaft continuous mixing system of the application.

[0027] Figure 8 It is a side view of another embodiment of the multi-horizontal shaft continuous mixing system of the application.

[0028] Figure 9 It is a schematic diagram of the first mixer of the application. Figure 8 ​

[0029] Figure 10 This is a schematic diagram of the transmission mechanism of this utility model.

[0030] In the diagram, 1-stepped load-bearing frame; 11-guardrail; 2-first mixer; 21-first mixing drum; 22-first drive motor; 23-first reducer; 24-first spiral blade; 25-first feed inlet; 26-discharge outlet; 3-second mixer; 31-second mixing drum; 32-second drive motor; 33-second reducer; 34-second spiral blade; 35-transmission mechanism; 351-first transmission wheel; 352-second transmission wheel; 353-third transmission wheel; 354-fourth transmission wheel; 36-second feed inlet; 37-discharge outlet; 4-observation window; 5-mounting bracket one; 6-mounting bracket two. Detailed Implementation

[0031] To better understand the structure, functional features, and advantages of this utility model, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0032] Example 1:

[0033] like Figures 1 to 7 As shown, this utility model provides a multi-shaft continuous stirring system, including:

[0034] Stepped load-bearing frame 1, with a step provided in the middle of its side end;

[0035] The first mixer 2 is mounted on the upper end of the stepped load-bearing frame 1 via the mounting bracket 5, and is provided with a first feed inlet 25 and a discharge outlet.

[0036] The second mixer 3 is mounted on the lower end of the stepped load-bearing frame 1 via the mounting bracket 2 6, and is vertically intersected with the first mixer 2, so that the second feed port 36 on it is vertically aligned with the discharge port and fixedly connected; it is also provided with a discharge port 37 for discharging materials.

[0037] The stepped load-bearing frame 1 is equipped with guardrails 11 on both sides to facilitate safe operation of workers on the base plate of the stepped load-bearing frame 1.

[0038] Example 2:

[0039] like Figure 3 and Figure 6As shown in the drawings, the first mixer 2 of the embodiment comprises a first stirring cylinder 21, a first driving motor 22, a first speed reducer 23 and two first helical blades 24. The two first helical blades 24 are horizontally staggered and arranged in the first stirring cylinder 21. The first driving motor 22 is arranged at the front end of the first mounting frame 5. The first helical blades 24 are connected with the first driving motor 22 through the first speed reducer 23. The output end of the first driving motor 22 is connected with the input end of the first speed reducer 23. The output end of the first speed reducer 23 is coaxially connected with one of the first helical blades 24.

[0040] As shown in the drawings, Figure 3 and Figure 5 , the second mixer 3 comprises a second stirring cylinder 31, a second driving motor 32, a second speed reducer 33 and two second helical blades 34. The two second helical blades 34 are horizontally staggered and arranged in the second stirring cylinder 31. The second driving motor 32 is arranged at the rear end of the second mounting frame 6. The second helical blades 34 are connected with the second driving motor 32 through the second speed reducer 33. The output end of the second driving motor 32 is connected with the input end of the second speed reducer 33. The output end of the second speed reducer 33 is coaxially connected with one of the second helical blades 34.

[0041] As shown in the drawings, Figure 3 the two first helical blades 24 are driven by the first gears at the ends thereof. The output end of the first speed reducer 23 is coaxially connected with one of the first gears through a shaft coupling, so that the two first helical blades 24 are reversely and synchronously rotated in the first stirring cylinder 21.

[0042] As shown in the drawings, Figure 3 the two second helical blades 34 are driven by the second gears at the ends thereof. The output end of the second speed reducer 33 is coaxially connected with one of the second gears through a shaft coupling, so that the two second helical blades 34 are reversely and synchronously rotated in the second stirring cylinder 31.

[0043] Embodiment three:

[0044] As shown in the drawings, Figure 3 and Figure 6 , the first mixer 2 of the embodiment comprises a first stirring cylinder 21, a first driving motor 22, a first speed reducer 23 and two first helical blades 24. The two first helical blades 24 are horizontally staggered and arranged in the first stirring cylinder 21. The first driving motor 22 is arranged at the front end of the first mounting frame 5. The first helical blades 24 are connected with the first driving motor 22 through the first speed reducer 23. The output end of the first driving motor 22 is connected with the input end of the first speed reducer 23. The output end of the first speed reducer 23 is coaxially connected with one of the first helical blades 24.

[0045] As shown in the drawings, Figures 8 to 10The second mixer 3 of the embodiment comprises a second mixing drum 31, two second spiral blades 34 and a transmission mechanism 35. The two second spiral blades 34 are horizontally staggered and arranged in the second mixing drum 31, and the rotating shaft of one first spiral blade 24 is in transmission connection with the rotating shaft of one second spiral blade 34 through the transmission mechanism 35. Through the transmission mechanism 35, the first driving motor 22 can drive the first spiral blade 24 and the second spiral blade 34 to rotate in the first mixing drum 21 and the second mixing drum 31 respectively, and the rotating directions of the first spiral blade 24 and the second spiral blade 34 are consistent, so as to facilitate discharging from the discharge port 37 at one end of the second mixing drum 31. Further, the directions of the first spiral blade 24 and the second spiral blade 34 in the first mixing drum 21 and the second mixing drum 31 can be adjusted to make the directions of the material pushed by the first spiral blade 24 and the second spiral blade 34 consistent. Further, a conveying belt is arranged below the discharge port 37 to convey the discharged material out.

[0046] Referring to Figure 9 and Figure 10 The transmission mechanism 35 of the embodiment comprises a first transmission wheel 351, a second transmission wheel 352, a third transmission wheel 353 and a fourth transmission wheel 354. The first transmission wheel 351 is coaxially connected with the rotating shaft of one first spiral blade 24, and the fourth transmission wheel 354 is coaxially connected with the rotating shaft of one second spiral blade 34. The second transmission wheel 352 and the third transmission wheel 353 are rotatably arranged on one side of the stepped load-bearing frame 1 through a support, the first transmission wheel 351 is in transmission connection with the second transmission wheel 352 through a transmission belt, the second transmission wheel 352 is coaxially connected with the third transmission wheel 353, and the third transmission wheel 353 is in transmission connection with the fourth transmission wheel 354 through a transmission belt.

[0047] Further, the first transmission wheel 351, the second transmission wheel 352, the third transmission wheel 353 and the fourth transmission wheel 354 of the embodiment can be replaced by sprockets, and the four sprockets are in transmission connection through a transmission chain.

[0048] Embodiment four:

[0049] As shown in Figure 1 The first mixing drum 21 and the second mixing drum 31 of the embodiment are provided with observation windows 4 for observing the internal conditions, so as to facilitate observing the mixing conditions in the first mixing drum 21 and the second mixing drum 31.

[0050] Referring to Figure 1 The first feeding port 25 of the embodiment is arranged at the front end of the first mixing drum 21, and an arc-shaped guide plate for belt conveyor feeding is arranged on the first feeding port 25, so as to facilitate the mixing material to enter the first feeding port 25 through the arc-shaped guide plate and then enter the first mixing drum 21 for mixing.

[0051] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present application, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present application. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical solution of the present application, without departing from the content of the technical solution of the present application, all belong to the protection scope of the present technical solution.

Claims

1. A multi-screw continuous mixing system, characterized by, The utility model relates to a double-stirring machine with a ladder-shaped supporting frame, which comprises the following components: a ladder-shaped supporting frame (1) with a ladder in the middle of the side end; a first stirring machine (2) provided on the upper end of the ladder-shaped supporting frame (1) through a mounting frame (5) and provided with a first feeding port (25) and a discharging port on the upper end; a second stirring machine (3) provided on the lower end of the ladder-shaped supporting frame (1) through a mounting frame (6) and vertically staggered with the first stirring machine (2), so that the second feeding port (36) provided on the second stirring machine (3) is vertically corresponding and fixedly connected with the discharging port, and the second stirring machine (3) is further provided with a discharging port (37) for discharging.

2. Multi-screw continuous mixing system according to claim 1, characterized in that The first stirring machine (2) comprises a first stirring cylinder (21), a first driving motor (22), a first speed reducer (23), and two first spiral blades (24), the two first spiral blades (24) are horizontally staggered and rotatably arranged in the first stirring cylinder (21), the first driving motor (22) is arranged at the front end of the mounting frame (5), and the first spiral blades (24) are connected with the first driving motor (22) through the first speed reducer (23).

3. Multi-screw continuous mixing system according to claim 2, characterized in that The second stirring machine (3) comprises a second stirring cylinder (31), a second driving motor (32), a second speed reducer (33), and two second spiral blades (34), the two second spiral blades (34) are horizontally staggered and rotatably arranged in the second stirring cylinder (31), the second driving motor (32) is arranged at the rear end of the mounting frame (6), and the second spiral blades (34) are connected with the second driving motor (32) through the second speed reducer (33).

4. The multi-screw continuous mixing system of claim 2, wherein, The second stirring machine (3) comprises a second stirring cylinder (31), two second spiral blades (34), and a transmission mechanism (35), the two second spiral blades (34) are horizontally staggered and rotatably arranged in the second stirring cylinder (31), and the rotating shaft of one of the first spiral blades (24) is in transmission connection with the rotating shaft of one of the second spiral blades (34) through the transmission mechanism (35).

5. The multi-screw continuous mixing system of claim 4, wherein, The transmission mechanism (35) comprises a first transmission wheel (351), a second transmission wheel (352), a third transmission wheel (353), and a fourth transmission wheel (354), the first transmission wheel (351) is coaxially connected with the rotating shaft of one of the first spiral blades (24), the fourth transmission wheel (354) is coaxially connected with the rotating shaft of one of the second spiral blades (34), the second transmission wheel (352) and the third transmission wheel (353) are rotatably arranged on one side of the ladder-shaped supporting frame (1) through a support, the first transmission wheel (351) is in transmission connection with the second transmission wheel (352) through a transmission belt, the second transmission wheel (352) is coaxially connected with the third transmission wheel (353), and the third transmission wheel (353) is in transmission connection with the fourth transmission wheel (354) through a transmission belt.

6. The multi-screw continuous mixing system of claim 1, wherein, Protective fences (11) are arranged on both sides of the ladder-shaped supporting frame (1).

7. The multi-screw continuous mixing system of claim 3, wherein, The first stirring drum (21) and the second stirring drum (31) are provided with observation windows (4) for observing the internal conditions.

8. The multi-screw continuous mixing system of claim 2, wherein, The two first spiral blades (24) are driven by first gear engagement at their ends, and the output end of the first speed reducer (23) is coaxially connected with one of the first gears through a shaft coupling.

9. The multi-screw continuous mixing system of claim 3, wherein, The two second spiral blades (34) are driven by second gear engagement at their ends, and the output end of the second speed reducer (33) is coaxially connected with one of the second gears through a shaft coupling.

10. The multi-screw continuous mixing system of claim 2, wherein, The first feeding port (25) is arranged at the front end of the first stirring drum (21), and the first feeding port (25) is provided with an arc-shaped guide plate for belt conveyor feeding.

Citation Information

Patent Citations

  • Continuous double-horizontal-shaft stirring main machine

    CN218688326U