Asphalt stirring tank

By introducing spiral plates and arc-shaped scrapers into the asphalt mixing tank, interactive mixing of the upper and lower asphalt is achieved, solving the problem of uneven mixing in the existing technology and improving mixing efficiency and safety.

CN223615714UActive Publication Date: 2025-12-02SHANDONG LUQIAO GROUP CO LTD
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Patent Information

Application Number
CN202422696016.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-12-02
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Existing asphalt mixing tanks cannot achieve effective interaction between the upper and lower asphalt layers, resulting in uneven mixing.

Method used

The design employs a spiral plate and an arc-shaped scraper, achieving interactive mixing of the lower asphalt through a circulating vertical pipe and mixing of the upper asphalt through a mixing rod. Combined with the rotation of the central shaft and scraper driven by a motor, it ensures all-round mixing.

Benefits of technology

It achieves uniform interaction and mixing of the upper and lower asphalt, improves the quality and production efficiency of asphalt mixtures, and avoids the risk of clumping on the inner wall of the mixing tank and high-temperature fire.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an asphalt stirring tank which comprises a stirring tank body, a stirring shaft and a stirring shaft, the circulating vertical pipe is connected with the middle part of the bottom of the stirring tank, the lower end of the circulating vertical pipe is provided with a group of uniformly distributed feed ports, and the upper end of the circulating vertical pipe is provided with a group of uniformly distributed discharge ports; the upper part of the central shaft is connected with the stirring tank through a bearing, and the central shaft is connected with the top plate of the circulating vertical pipe through the bearing; the spiral plate is arranged in the circulating vertical pipe, the spiral plate is connected with the central shaft, and the spiral plate is matched with the circulating vertical pipe. The utility model relates to the technical field of asphalt production, in particular to an asphalt stirring tank. Aiming at the defects in the prior art, the utility model develops the asphalt stirring tank, and the asphalt stirring tank can conveniently realize interaction of asphalt at the upper part and asphalt at the lower part and is convenient for uniformly stirring the asphalt.
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Description

Technical Field

[0001] This utility model relates to the field of asphalt production technology, and in particular to an asphalt mixing tank. Background Technology

[0002] An asphalt mixing tank is an asphalt equipment that operates using an internally heated, locally rapid heating method. Its core function is to mix raw materials such as aggregates and asphalt to produce asphalt mixtures that meet standards. This equipment, through a unique mixing device and heating process, ensures that the asphalt is evenly distributed within the aggregates, thereby improving the quality and performance of the asphalt mixture.

[0003] Existing technology, such as the utility model with authorization publication number CN220861140U, describes an asphalt mixing tank. During the operation of the mixer, scraper blades close to the tank body can scrape off the asphalt mixture adhering to the inner wall of the tank, thereby reducing the phenomenon of caking on the tank wall surface that affects the uniform mixing of asphalt inside the tank. This also eliminates the impact of caking on the heat dissipation efficiency of the heat transfer oil in the mixing tank, ensuring that the asphalt inside the tank maintains a good flow state and preventing high-temperature ignition. This improves the efficiency of asphalt modification material preparation and avoids accidents.

[0004] Currently, there is a lack of an asphalt mixing tank that facilitates the exchange of asphalt between the upper and lower parts, making it easier to mix the asphalt evenly.

[0005] Therefore, in order to address the above problems, an asphalt mixing tank is proposed to solve them. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by developing an asphalt mixing tank that facilitates the exchange of asphalt between the upper and lower parts, thus ensuring uniform mixing of the asphalt.

[0007] The technical solution to the problem solved by this utility model is as follows: This utility model provides an asphalt mixing tank, comprising: a mixing tank, the mixing tank being hollow inside; a circulating vertical pipe connected to the bottom middle of the mixing tank, the lower end of the circulating vertical pipe having a set of evenly distributed feed inlets, and the upper end of the circulating vertical pipe having a set of evenly distributed discharge outlets; a central shaft bearing the mixing tank at its upper part, the central shaft bearing connecting to the top plate of the circulating vertical pipe; and a spiral plate disposed inside the circulating vertical pipe, the spiral plate being connected to the central shaft and matching the circulating vertical pipe. By employing the spiral plate, the asphalt at the bottom enters the circulating vertical pipe through the feed inlets and then exits from the discharge outlets, realizing the interaction between the upper and lower asphalt.

[0008] As an optimization, the mixing tank is connected to a motor via a motor bracket, and the output shaft of the motor is connected to the central shaft. By employing a motor, power is provided for the rotation of the central shaft.

[0009] As an optimization, a circular plate is connected to the central shaft, and a set of scrapers is connected to the circular plate. The scrapers rotate around the center of the mixing tank, preventing the raw material from sticking to the tank wall and achieving mixing of the raw material at the edge of the mixing tank.

[0010] As an optimization, each scraper is connected to a mounting plate, each mounting plate is connected to an arc-shaped scraper, and each arc-shaped scraper is connected to a circular pipe, through which the circulating vertical pipe passes. By using arc-shaped scrapers, their rotation achieves mixing of the asphalt below, making it convenient to use.

[0011] As an optimization, the circulating vertical pipe is connected to a fixed gear, the central shaft passes through the fixed gear, and the circular plate bearing is connected to a set of driven gears. Each driven gear meshes with the fixed gear, each driven gear is connected to a mounting shaft, and each mounting shaft is connected to a set of stirring rods. By using stirring rods, they can revolve around the center of the mixing tank and rotate around the center of the mounting shaft, facilitating the mixing of the upper asphalt.

[0012] As an optimization, the scraper is placed close to the wall of the mixing tank.

[0013] As an optimization, the top of the mixing tank is fixedly connected to a feed pipe, which is threadedly connected to a cover. The feed pipe facilitates the addition of raw materials.

[0014] As an optimization, the bottom of the mixing tank is fixedly connected to a discharge valve to facilitate the discharge of asphalt.

[0015] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0016] (1) This device uses a spiral plate to allow the lower asphalt to enter the circulating vertical pipe through the feed port and then be discharged from the discharge port, thus realizing the interaction between the upper and lower asphalt.

[0017] (2) This device uses an arc-shaped scraper, which rotates to mix the asphalt at the bottom, making it easy to use.

[0018] (3) This device uses a stirring rod, which can revolve around the center of the mixing tank and rotate around the center of the installation shaft, which facilitates the mixing of the upper asphalt. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a partial three-dimensional structural diagram of the present invention. Figure 1 .

[0022] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 2 .

[0023] Figure 4 This is a partial three-dimensional structural diagram of the present invention. Figure 3 .

[0024] Figure 5 This is a partial three-dimensional structural diagram of the present invention. Figure 4 .

[0025] In the diagram: 1. Motor, 2. Mixing tank, 3. Cover, 4. Feed pipe, 5. Discharge valve, 6. Central shaft, 7. Circular plate, 8. Scraper, 9. Arc-shaped scraper, 10. Circular tube, 11. Fixed gear, 12. Driven gear, 13. Mounting shaft, 14. Mounting plate, 15. Circulation vertical pipe, 16. Feed inlet, 17. Discharge outlet, 18. Mixing rod, 19. Spiral plate. Detailed Implementation

[0026] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 5 As shown in Embodiment 1: An asphalt mixing tank includes: a mixing tank 2, the mixing tank 2 being hollow inside; a circulation vertical pipe 15, connected to the bottom middle of the mixing tank 2, the lower end of the circulation vertical pipe 15 having a set of evenly distributed feed inlets 16, and the upper end of the circulation vertical pipe 15 having a set of evenly distributed discharge outlets 17; a central shaft 6, the upper part of which bears the mixing tank 2, the central shaft 6 being connected to the top plate of the circulation vertical pipe 15; and a spiral plate 19, disposed inside the circulation vertical pipe 15, the spiral plate 19 being connected to the central shaft 6, and the spiral plate 19 being matched to the circulation vertical pipe 15. By using the spiral plate 19, the lower asphalt enters the circulation vertical pipe 15 through the feed inlets 16 and is then discharged from the discharge outlets 17, realizing the interaction between the upper and lower asphalt.

[0028] The mixing tank 2 is connected to the motor 1 via a motor bracket, and the output shaft of the motor 1 is connected to the central shaft 6. The motor 1 provides power for the rotation of the central shaft 6.

[0029] The model of motor 1 is YE3-132S1-2.

[0030] The central shaft 6 is connected to a circular plate 7, and the circular plate 7 is connected to a set of scrapers 8. The scrapers 8 rotate around the center of the mixing tank 2, preventing the raw materials from sticking to the tank wall and achieving stirring of the raw materials at the edge of the mixing tank 2.

[0031] Each of the scraper rods 8 is connected to a mounting plate 14, each mounting plate 14 is connected to an arc-shaped scraper rod 9, and each arc-shaped scraper rod 9 is connected to a circular pipe 10. The circulating vertical pipe 15 passes through the circular pipe 10. By using the arc-shaped scraper rod 9, its rotation enables the mixing of the asphalt below, making it convenient to use.

[0032] The scraper 8 is in close contact with the wall of the mixing tank 2.

[0033] The top of the mixing tank 2 is fixedly connected to the feed pipe 4, and the feed pipe 4 is threadedly connected to the cover 3. The feed pipe 4 facilitates the addition of raw materials.

[0034] The bottom of the mixing tank 2 is fixedly connected to the discharge valve 5 to facilitate the discharge of asphalt.

[0035] The workflow of this embodiment is as follows:

[0036] Unscrew the lid 3, add the raw materials into the mixing tank 2 through the feed pipe 4, and loosen the lid 3.

[0037] When motor 1 is turned on, it drives the central shaft 6 to rotate. The central shaft 6 drives the spiral plate 19 and the circular plate 7 to rotate. The circular plate 7 drives the scraper 8, the mounting plate 14, and the arc-shaped scraper 9 to rotate around the center of the mixing tank 2. The arc-shaped scraper 9 drives the circular pipe 10 to rotate. This achieves the mixing of asphalt. The asphalt at the bottom enters the circulation vertical pipe 15 through the feed inlet 16 and then exits through the discharge outlet 7, realizing the exchange of asphalt between the upper and lower parts.

[0038] Example 2: This example further elaborates on Example 1. The circulating vertical pipe 15 is connected to the fixed gear 11, the central shaft 6 passes through the fixed gear 11, and the circular plate 7 is bearing-connected to a set of driven gears 12. Each driven gear 12 meshes with the fixed gear 11, each driven gear 12 is connected to a mounting shaft 13, and each mounting shaft 13 is connected to a set of stirring rods 18. By using stirring rods 18, they can revolve around the center of the mixing tank 2 and rotate around the center of the mounting shaft 13, facilitating the mixing of the upper asphalt.

[0039] The workflow of this embodiment is as follows:

[0040] When the circular plate 7 rotates, it drives the driven gear 12, the mounting shaft 13, and the mixing rod 18 to rotate around the center of the mixing tank 2. The driven gear 12 rotates with the fixed gear 11, and the driven gear 12 drives the mounting shaft 13 to rotate. The mounting shaft 13 drives the mixing rod 18 to rotate, so that the mixing rod 18 revolves around the center of the mixing tank 2 and around the center of the mounting shaft 13 at the same time, thus mixing the asphalt.

[0041] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. An asphalt mixing tank, characterized in that, include: A mixing tank (2) is hollow inside; A circulating vertical pipe (15) is connected to the bottom middle of the mixing tank (2). The lower end of the circulating vertical pipe (15) is provided with a set of evenly distributed feed inlets (16), and the upper end of the circulating vertical pipe (15) is provided with a set of evenly distributed discharge outlets (17). The central shaft (6) is supported on the upper part of the mixing tank (2), and the central shaft (6) is connected to the top plate of the circulating vertical pipe (15). A spiral plate (19) is disposed inside the circulation vertical pipe (15), the spiral plate (19) is connected to the central shaft (6), and the spiral plate (19) is matched with the circulation vertical pipe (15).

2. The asphalt mixing tank according to claim 1, characterized in that: The mixing tank (2) is connected to the motor (1) via a motor bracket, and the output shaft of the motor (1) is connected to the central shaft (6).

3. An asphalt mixing tank according to claim 2, characterized in that: The central shaft (6) is connected to the circular plate (7), and the circular plate (7) is connected to a set of scrapers (8).

4. An asphalt mixing tank according to claim 3, characterized in that: Each of the scraper rods (8) is connected to a mounting plate (14), each of the mounting plates (14) is connected to an arc-shaped scraper rod (9), each of the arc-shaped scraper rods (9) is connected to a round tube (10), and the circulating vertical tube (15) passes through the round tube (10).

5. An asphalt mixing tank according to claim 3, characterized in that: The circulating vertical pipe (15) is connected to the fixed gear (11), the central shaft (6) passes through the fixed gear (11), the circular plate (7) is connected to a set of driven gears (12) by a bearing, each driven gear (12) meshes with the fixed gear (11), each driven gear (12) is connected to the mounting shaft (13), and each mounting shaft (13) is connected to a set of stirring rods (18).

6. An asphalt mixing tank according to claim 3, characterized in that: The scraper (8) is in close contact with the wall of the mixing tank (2).

7. An asphalt mixing tank according to claim 1, characterized in that: The top of the mixing tank (2) is fixedly connected to the feed pipe (4), and the feed pipe (4) is threadedly connected to the cover (3).

8. An asphalt mixing tank according to claim 1, characterized in that: The bottom of the mixing tank (2) is fixedly connected to the unloading valve (5).

Citation Information

Patent Citations

  • Asphalt mixing and stirring tank

    CN220861140U