Rubber and plastic alloy modified asphalt mixing machine

Abstract

The utility model discloses a rubber and plastic alloy modified asphalt mixing machine which comprises a mixing box, a hopper, a stirring shaft and a baffle plate, and is characterized in that a cover plate is fixedly connected onto the mixing box, a second stirring shaft is rotatably connected onto the cover plate through a first bearing, a first stirring shaft is rotatably connected onto the cover plate through a second bearing, and a support frame is fixedly connected onto the cover plate; the bottom of the hopper is connected with a guide pipe, and the guide pipe is communicated with the interior of the mixing box; the bottom of the mixing box is fixedly connected with a bracket; the feeding device has the advantages that the baffle on the hopper is used in cooperation with the valve on the guide pipe, the discharging process can be conducted in a closed mode, dust can be effectively reduced, and the smoke dust emission concentration can be reduced; meanwhile, the double-shaft stirring efficiency is higher, and asphalt can be more uniformly mixed with modifiers such as plastic or rubber powder.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production, in particular to a rubber-plastic alloy modified asphalt mixer. Background Art

[0002] Asphalt modified with plastics (such as polyethylene) can significantly improve asphalt pavement's rutting and high-temperature resistance, while rubber-powder-modified asphalt can significantly improve its cracking resistance. Combining these two methods to create an alloy can also improve both rutting and cracking resistance. Currently, the technologies for applying plastics and rubber-powder to asphalt pavement are primarily divided into two categories: wet and dry methods. The wet method involves mixing plastics and rubber-powder with hot asphalt at high temperatures to create a rubber-plastic modified asphalt, which is then mixed with aggregate. The dry method involves adding plastic or rubber-powder as a modifier along with other stone materials into a mixing kettle to create a mixture.

[0003] Whether producing rubber-plastic alloy modified asphalt by dry or wet method, it is necessary to mix and stir asphalt, modifier and aggregate. The existing mixers stir unevenly and have low stirring efficiency during the stirring process of a single stirring shaft. When adding modifiers during the production of rubber-plastic alloy modified asphalt, most of them are open structures, and dust is inevitably generated during the mixing process. The smoke emission concentration is much higher than the national emission standards, which poses a certain threat to the natural environment and human health, and there are problems. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a rubber-plastic alloy modified asphalt mixer to solve the existing problems.

[0005] The utility model is realized through the following technical scheme: a rubber-plastic alloy modified asphalt mixer, comprising a mixing box, a hopper, a stirring shaft and a baffle, characterized in that: the mixing box is fixedly connected to a cover plate, the cover plate is rotatably connected to the second stirring shaft through a first bearing, the cover plate is rotatably connected to the first stirring shaft through a second bearing, the cover plate is fixedly connected to a support frame, the support frame is fixedly connected to the hopper, the bottom of the hopper is connected to a conduit, the conduit is connected to the mixing box; the bottom of the mixing box is fixedly connected to the bracket.

[0006] Preferably, the cover is fixedly connected to the second motor, the rotating shaft of the second motor is fixedly connected to the second gear, the second gear is meshed with the third gear, the third gear is fixedly connected to the second stirring shaft, and the second stirring shaft is fixedly connected to the second stirring blade.

[0007] Preferably, the second gear is meshedly connected to the fourth gear, the fourth gear is fixedly connected to the first stirring shaft, and the first stirring blade is fixedly connected to the first stirring shaft; the first stirring blade and the second stirring blade are staggered.

[0008] Preferably, the hopper is slidably connected to a baffle, the baffle is fixedly connected to a rack, the rack is meshed and connected to a first gear, the first gear is fixedly connected to a rotating shaft of a first motor, and the first motor is fixedly connected to an outer wall of the hopper.

[0009] Preferably, a first valve is provided on the conduit, and the bottom of the mixing box is connected to a discharge pipe, and a second valve is provided on the discharge pipe.

[0010] The beneficial effects of the utility model are reflected in: the baffle on the hopper and the valve on the conduit are used in conjunction to ensure that the unloading process is carried out in a closed manner, which can effectively reduce dust generation and lower the concentration of smoke emissions; at the same time, the double-axis stirring efficiency is higher, and the asphalt and modifiers such as plastic or rubber powder are mixed more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0014] Figure 3 For this utility model Figure 2 Cross-section at AA;

[0015] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the mixing structure of the utility model.

[0017] In the accompanying drawings, 1. baffle, 2. first gear, 3. first motor, 4. hopper, 5. conduit, 6. first bearing, 7. mixing box, 8. bracket, 9. discharge pipe, 10. second motor, 11. cover plate, 12. second gear, 13. third gear, 14. rack, 15. fourth gear, 16. second bearing, 17. first stirring shaft, 18. first stirring blade, 19. second stirring shaft, 20. second stirring blade, 21. support frame, 22. first valve, 23. second valve. DETAILED DESCRIPTION

[0018] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0020] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figures is inverted, an element described as being "below" another element or feature would be positioned "above" the other element or feature. Thus, the exemplary term "below" can encompass both above and below orientations.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation of the present invention is described in detail below with reference to specific embodiments: Figure 1-Figure 5 The utility model shown is realized by the following technical solution: a rubber-plastic alloy modified asphalt mixer, including a mixing box 7, a hopper 4, a stirring shaft and a baffle 1, characterized in that: the mixing box 7 is fixedly connected to a cover plate 11, the cover plate 11 is rotatably connected to a second stirring shaft 19 through a first bearing 6, the cover plate 11 is rotatably connected to a first stirring shaft 17 through a second bearing 16, the cover plate 11 is fixedly connected to a support frame 21, the support frame 21 is fixedly connected to a hopper 4, the bottom of the hopper 4 is connected to a conduit 5, and the conduit 5 is connected to the mixing box 7; the bottom of the mixing box 7 is fixedly connected to a bracket 8.

[0023] The cover plate 11 is fixedly connected to the second motor 10 , the rotating shaft of the second motor 10 is fixedly connected to the second gear 12 , the second gear 12 is meshed with the third gear 13 , the third gear 13 is fixedly connected to the second stirring shaft 19 , and the second stirring shaft 19 is fixedly connected to the second stirring blade 20 .

[0024] The second gear 12 is meshed with the fourth gear 15 , and the fourth gear 15 is fixedly connected to the first stirring shaft 17 . The first stirring shaft 17 is fixedly connected to the first stirring blade 18 . The first stirring blade 18 and the second stirring blade 20 are arranged alternately.

[0025] The hopper 4 is slidably connected to the baffle 1, the baffle 1 is fixedly connected to the rack 14, the rack 14 is meshed with the first gear 2, the first gear 2 is fixedly connected to the rotating shaft of the first motor 3, and the first motor 3 is fixedly connected to the outer wall of the hopper 4.

[0026] The conduit 5 is provided with a first valve 22 , and the bottom of the mixing box 7 is connected to a discharge pipe 9 , and the discharge pipe 9 is provided with a second valve 23 .

[0027] The working principle of the present utility model is as follows: closing the first valve 22, starting the first motor 3 to open the baffle 1 to add plastic or rubber powder as a modifier into the hopper 4, starting the first motor 3 to close the baffle 1, starting the second motor 10 to drive the first stirring shaft 17 and the second stirring shaft 19 to rotate, stirring the asphalt raw material, and according to the stirring process, opening the first valve 22 to add the modifier in the hopper 4 into the mixing box 7. The entire adding process is enclosed, which can effectively avoid dust. At the same time, the concentration of smoke emissions generated is greatly reduced. The double-shaft stirring can also make the asphalt and modifiers such as plastic or rubber powder mixed more evenly, and the stirring efficiency is higher.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A rubber-plastic alloy modified asphalt mixer, comprising a mixing box (7), a hopper (4), a stirring shaft and a baffle (1), characterized in that: The mixing box (7) is fixedly connected to a cover plate (11), which is rotatably connected to a second stirring shaft (19) via a first bearing (6), and is rotatably connected to a first stirring shaft (17) via a second bearing (16). The cover plate (11) is fixedly connected to a support frame (21), which is fixedly connected to a hopper (4). The bottom of the hopper (4) is connected to a conduit (5), which is connected to the inside of the mixing box (7); and the bottom of the mixing box (7) is fixedly connected to a bracket (8).

2. The rubber-plastic alloy modified asphalt mixer according to claim 1, characterized in that: The cover plate (11) is fixedly connected to the second motor (10), the rotating shaft of the second motor (10) is fixedly connected to the second gear (12), the second gear (12) is meshedly connected to the third gear (13), the third gear (13) is fixedly connected to the second stirring shaft (19), and the second stirring shaft (19) is fixedly connected to the second stirring blade (20).

3. The rubber-plastic alloy modified asphalt mixer according to claim 2, characterized in that: The second gear (12) is meshedly connected to the fourth gear (15), the fourth gear (15) is fixedly connected to the first stirring shaft (17), and the first stirring blade (18) is fixedly connected to the first stirring shaft (17); the first stirring blade (18) and the second stirring blade (20) are staggered.

4. The rubber-plastic alloy modified asphalt mixer according to claim 1, characterized in that: The hopper (4) is slidably connected to a baffle (1), the baffle (1) is fixedly connected to a rack (14), the rack (14) is meshedly connected to a first gear (2), the first gear (2) is fixedly connected to a rotating shaft of a first motor (3), and the first motor (3) is fixedly connected to an outer wall of the hopper (4).

5. The rubber-plastic alloy modified asphalt mixer according to claim 1, characterized in that: The conduit (5) is provided with a first valve (22), the bottom of the mixing box (7) is connected to a discharge pipe (9), and the discharge pipe (9) is provided with a second valve (23).

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