Multi-stage mixture scarifying device

Abstract

The utility model discloses a multi-stage mixture scarifying device which comprises a rack, a scarifying device and a material distributing and heat conducting device, wherein the scarifying device and the material distributing and heat conducting device are arranged on the rack; the scarifying device comprises a first scarifying device and a plurality of groups of second scarifying devices which are positioned at the end part of the rack, are linearly arranged on the rack and are used for scarifying the mixture; the material distributing and heat conducting devices are mounted at the bottom of the rack, and a plurality of groups of material distributing and heat conducting devices are distributed between the first scarifying devices and the second scarifying devices and between the adjacent second scarifying devices by adopting a plug-in method and are used for reducing heating blind areas of the scarified mixture and increasing the overall temperature of the mixture. According to the multi-stage mixture scarifying device, through the arrangement of the first scarifying device, the multiple groups of second scarifying devices and the multi-component material heat conduction device, the mixing uniformity is improved, the heating blind area of a material pile is reduced, the heating uniformity of the material pile is improved, and time and energy consumption are saved.

Description

Technical Field

[0001] This utility model relates to the field of road maintenance equipment technology, and in particular to a multi-stage mixture loosening device. Background Technology

[0002] When the in-situ thermal recycling unit is operating, the milled mixture pile needs to be heated. However, due to the short contact time between the hot air and the material, the heat transfer and penetration effect is poor, and the hot air heat transfer only acts on the surface of the pile. The surface temperature of the pile rises, but the internal temperature of the pile rises poorly. Excessive surface temperature also produces a large amount of asphalt fumes. In addition, traditional loosening devices cannot quickly replace the blades after wear, making maintenance difficult. Utility Model Content

[0003] Objective: In order to overcome the shortcomings of the existing technology, this utility model provides a multi-stage mixing loosening device that can repeatedly turn and disturb the mixture to improve the heat exchange efficiency of the mixture.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] This utility model provides a multi-stage mixing loosening device, including a frame, and a loosening device and a material distribution and heat conduction device installed on the frame;

[0006] The loosening device includes a first loosening device and multiple sets of second loosening devices located at the end of the frame, arranged in a straight line on the frame, for loosening the mixture;

[0007] The material distribution and heat conduction device is installed at the bottom of the frame. Multiple devices are distributed in a gap-filling manner between the first and second loosening devices and between adjacent second loosening devices to reduce the heating blind zone of the mixture after loosening and improve the overall temperature of the mixture.

[0008] The first loosening device and multiple sets of second loosening devices are arranged in a straight line on the frame. Multiple component heat-conducting devices are installed between the first and second loosening devices, and between adjacent second loosening devices. This creates a multi-stage, progressive loosening structure for the entire multi-stage mixing loosening device, avoiding insufficient or excessive loosening force in a single operation and improving mixing uniformity. The component heat-conducting devices can further disperse and loosen the loosened mixture, reducing localized accumulation of the mixture and allowing for exchange between the internal and side / top piles, achieving uniform heating and preventing excessively high local temperatures.

[0009] In some embodiments, the first loosening device and the second loosening device have the same structure, including a rotating shaft, a bushing assembly and a rotating head;

[0010] The bushing assembly includes multiple arc-shaped plates fixedly connected to the rotating shaft. All the arc-shaped plates are spliced ​​together to form a tube channel, and the rotating shaft is set inside the tube channel.

[0011] The rotating head is mounted on the arc-shaped plate via a bushing assembly.

[0012] In some embodiments, the arc plate is provided with a plurality of bushings, and the rotating head is inserted into the bushing and detachably installed inside the bushing.

[0013] The bushing protects the rotating head, and the detachable connection between the rotating head and the bushing makes it easy to replace the rotating head when it wears out.

[0014] In some embodiments, the bushings are distributed in a ring outside the tube channel formed by the arc plate, and the included angle between adjacent bushings in the same vertical plane is the same.

[0015] In some embodiments, the first loosening device and the second loosening device further include guide blades located on both sides of the first loosening device and the second loosening device and fixed on the rotating shaft, for pushing the mixture on both sides toward the middle.

[0016] In some embodiments, the material distribution and heat conduction device includes a fixed plate, a material distribution plate, and a heat conduction pipe; the fixed plate is mounted on the frame and connected to the material distribution plate through the heat conduction pipe; the material distribution plate is inclined to the ground to change the material turning direction.

[0017] In some embodiments, the material turning directions of the adjacent material dispensing and heat-conducting devices are different.

[0018] In some embodiments, the heat-conducting gas pipe is circular or polygonal.

[0019] In some embodiments, the material distribution plate is a straight plate or a corrugated plate.

[0020] In some embodiments, the distance between the material distribution plate and the ground is 5-8 cm.

[0021] Beneficial effects: This multi-stage mixing and loosening device, through the arrangement of a first loosening device, multiple sets of second loosening devices, and multiple sets of material distribution and heat conduction devices, significantly reduces the heating blind zone of the material pile and improves the uniformity of the material pile temperature rise; the first loosening device and multiple sets of second loosening devices are linearly distributed on the frame, forming a multi-stage working unit, which coordinates material distribution and loosening, improving the uniformity of mixing; the loosening device and the heat conduction device are centrally installed on the frame, which facilitates overall movement and can adapt to continuous operation, and the alternating setting of multi-stage loosening and material distribution and heat conduction enables deep processing in a single pass, reducing repetitive operations and saving time and energy consumption. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the multi-stage mixing loosening device in this utility model embodiment;

[0024] Figure 2 This is a schematic diagram of the structure of the first loosening device and the second loosening device in the embodiments of this utility model;

[0025] Figure 3 This is a schematic diagram of the bushing assembly in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the material distribution and heat conduction device in an embodiment of this utility model.

[0027] In the figure: 1. Frame, 11. First loosening device, 12. Second loosening device, 13. Rotating shaft, 14. Bushing assembly, 141. Arc plate, 142. Bushing, 15. Rotating head, 16. Guide blade; 2. Material distribution and heat conduction device, 21. Fixed plate, 22. Material distribution plate, 23. Heat conduction pipe. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may include different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0030] Example 1:

[0031] This embodiment provides a multi-stage mixture loosening device, such as... Figure 1 As shown, the machine includes a frame 1, and a loosening device and a material distribution and heat conduction device 2 installed on the frame 1. The loosening device includes a first loosening device 11 located at the end of the frame 1 and multiple sets of second loosening devices 12, which are arranged in a straight line on the frame 1. The material distribution and heat conduction device 2 is installed at the bottom of the frame 1, and multiple devices are distributed in a spaced manner between the first loosening device 11 and the second loosening device 12, as well as between adjacent second loosening devices 12.

[0032] like Figure 2 As shown, the first loosening device 11 and the second loosening device 12 have the same structure, including a rotating shaft 13, a bushing assembly 14 and a rotating head 15.

[0033] like Figure 3 As shown, the bushing assembly 14 includes a plurality of arc-shaped plates 141 fixedly connected to the rotating shaft 13. In this embodiment, the arc-shaped plates 141 are two semi-circular sleeves, and the rotating shaft 13 is disposed inside the sleeves.

[0034] Multiple bushings 142 are welded onto the two semi-circular sleeves. After the rotating head 15 is inserted into the bushing 142, it is fastened with bolts or pins to be installed on the semi-circular sleeves.

[0035] In some embodiments, the loosening device may be an auger.

[0036] In this embodiment, the bushings 142 are distributed in a ring around the outside of the two semi-circular sleeves, and three bushings 142 are arranged in the same vertical plane, with an included angle of 120° between adjacent bushings 142.

[0037] The first loosening device 11 and the second loosening device 12 also include guide blades 16, combined with Figure 2 The guide blades 16 are located on both sides of the first loosening device 11 and the second loosening device 12 and are fixed on the rotating shaft 13, used to push the mixture on both sides toward the middle.

[0038] like Figure 4 As shown, the material distribution and heat conduction device 2 includes a fixed plate 21, a material distribution plate 22, and a heat conduction pipe 2323; the fixed plate 21 is installed on the frame 1 and connected to the material distribution plate 22 through the heat conduction pipe 2323; the material distribution plate 22 is inclined to the ground to change the material turning direction.

[0039] The material distribution plates of adjacent material distribution and heat conduction devices 2 are not parallel to each other, so the material turning directions are different.

[0040] In this embodiment, the heat-conducting air pipe 23 is circular, and the material distribution plate 22 is a straight plate.

[0041] Example 2:

[0042] Based on Embodiment 1, this embodiment provides a specific arrangement of the loosening device and the material distribution and heat conduction device 2 on the frame, such as... Figure 1 As shown, it includes:

[0043] The first loosening device 11 is located at the end of the frame 1, and two sets of material distribution heat conduction devices 2 are assembled on its rear side. The first set includes one material distribution heat conduction device 2, the second set includes two material distribution heat conduction devices 2, and the third set includes three material distribution heat conduction devices 2.

[0044] The third group of material distribution heat conduction device 2 is provided with a second loosening device 12 on its rear side, and the third group of material distribution heat conduction device 2 is also assembled on its rear side. The first group includes 3 material distribution heat conduction devices 2, and the second group includes 1 material distribution heat conduction device 2.

[0045] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific orientation. If the specific orientation changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing this application and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A multi-stage mixture loosening device, characterized in that, Includes a frame, and a loosening device and a material distribution and heat conduction device installed on the frame; The loosening device includes a first loosening device and multiple sets of second loosening devices located at the end of the frame, arranged in a straight line on the frame, for loosening the mixture; The material distribution and heat conduction device is installed at the bottom of the frame. Multiple devices are distributed in a gap-filling manner between the first and second loosening devices and between adjacent second loosening devices to reduce the heating blind zone of the mixture after loosening and improve the overall temperature of the mixture.

2. The multi-stage mixing loosening device according to claim 1, characterized in that, The first and second loosening devices have the same structure, including a rotating shaft, a bushing assembly, and a rotating head; The bushing assembly includes multiple arc-shaped plates fixedly connected to the rotating shaft. All the arc-shaped plates are spliced ​​together to form a tube channel, and the rotating shaft is set inside the tube channel. The rotating head is mounted on the arc-shaped plate via a bushing assembly.

3. The multi-stage mixing loosening device according to claim 2, characterized in that, The arc-shaped plate is provided with multiple bushings, and the rotating head is inserted into the bushing and detachably installed inside the bushing.

4. The multi-stage mixing loosening device according to claim 3, characterized in that, The bushings are distributed in a ring outside the tube channel formed by the arc plate, and the included angle between adjacent bushings in the same vertical plane is the same.

5. The multi-stage mixing loosening device according to claim 2, characterized in that, The first and second loosening devices also include guide blades located on both sides of the first and second loosening devices and fixed on the rotating shaft, for pushing the mixture on both sides toward the middle.

6. The multi-stage mixing loosening device according to claim 1, characterized in that, The material distribution and heat conduction device includes a fixed plate, a material distribution plate, and a heat conduction pipe; the fixed plate is installed on the frame and connected to the material distribution plate through the heat conduction pipe; the material distribution plate is inclined to the ground to change the material turning direction.

7. The multi-stage mixing loosening device according to claim 6, characterized in that, The adjacent material distribution and heat conduction devices have different material turning directions.

8. The multi-stage mixing loosening device according to claim 6, characterized in that, The heat-conducting gas pipe is circular or polygonal.

9. The multi-stage mixing loosening device according to claim 6, characterized in that, The material distribution plate is a straight plate or a corrugated plate.

10. The multi-stage mixing loosening device according to claim 6, characterized in that, The distance between the material distribution plate and the ground is 5-8 cm.

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