Mixing device for modified asphalt

Abstract

The utility model discloses a modified asphalt mixing device, belongs to the technical field of engineering machinery, and provides an asphalt mixing device which is low in energy consumption and good in uniform mixing effect. The modified asphalt mixing device comprises a horizontally-arranged skid-mounted main tank body, and a homogenizing emulsifying machine and a stirring mechanism are arranged on the skid-mounted main tank body; the homogenizing and emulsifying machine comprises a cylinder barrel fixedly connected with a skid-mounted main tank body, the lower end of the cylinder barrel is located in the skid-mounted main tank body and fixedly connected with a slow flow end cover, fluid can more stably flow into the cylinder barrel, the cylinder barrel is sleeved with a hot jacket, and the skid-mounted main tank body is provided with a raw material input end. An asphalt output end, a heat-conducting oil inlet and a heat-conducting oil outlet are formed in the side wall of the skid-mounted main tank body; and the heat-conducting oil inlet and the heat-conducting oil outlet are communicated with the interior of the hot jacket. The stirring mechanism and the homogenizing mechanism are combined, materials are mixed and refined in a grading mode, and the refining and dispersing efficiency is greatly improved; and the heat of the discharged asphalt is recovered by designing a sleeve structure, so that the energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to a mixing device for modified asphalt. Background Art

[0002] The use of natural modified asphalt supported by natural Buton rock can greatly improve the performance of roads. However, due to the high viscosity of Buton rock, general mixing devices are difficult to handle and require a large amount of power. Moreover, the mixing effect is difficult to achieve the ideal state. Therefore, it is urgent to propose a mixing device for modified asphalt. Summary of the Invention

[0003] The purpose of this application is to provide an asphalt mixing device with low energy consumption and good mixing effect.

[0004] To achieve the above objectives, the present application provides a mixing device for modified asphalt: comprising a horizontally placed skid-mounted main tank body, the skid-mounted main tank body being provided with a homogenizer and a stirring mechanism, the homogenizer comprising a cylinder fixedly connected to the skid-mounted main tank body, the lower end of the cylinder being located in the skid-mounted main tank body and fixedly connected to a slow-flow end cover, suitable for allowing the fluid to flow into the cylinder more stably, the outer shell of the cylinder being provided with a heat jacket, the skid-mounted main tank body being provided with a raw material input end, the side wall of the skid-mounted main tank body being provided with an asphalt output end, a heat transfer oil inlet and a heat transfer oil outlet, the heat transfer oil inlet and the heat transfer oil outlet being connected to the interior of the heat jacket, and the fluidity of the material in the cylinder being maintained by the heating effect of the heat jacket.

[0005] As a preferred embodiment, the cylinder is fixedly connected to the top of the skid-mounted main tank body, the upper end of the cylinder is fixedly connected to a reduction motor, the output end of the reduction motor is connected to a transmission shaft through a coupling, the outer side of the cylinder is connected to a return pipe, and the return pipe is connected to the inside of the cylinder through a discharge port, and one end of the return pipe located inside the skid-mounted main tank body is a return port, and the outer side of the transmission shaft located inside the cylinder is fixedly connected to a turntable, which is suitable for driving the fluid to generate centrifugal force. After the material is sucked into the cylinder, it is discharged through the return port, thereby achieving material refinement and dispersion, and the obtained asphalt has better homogeneity.

[0006] As a preferred embodiment, the slow-flow end cover includes an upper cover fixedly connected to the lower end of the cylinder, the lower end of the upper cover is fixedly connected to the bottom cover through a buffer cylinder, the bottom cover is provided with a number of suction ports passing through the upper and lower surfaces, and the upper cover is provided with a number of feed ports passing through the upper and lower surfaces, forming a continuous circulation channel for the material.

[0007] As a preference, the upper surface of the turntable has concentric corrugations, which are suitable for providing radial force to the material, thereby facilitating rapid refinement of the material.

[0008] As a preferred embodiment, the stirring mechanism includes a pair of stirring shafts rotatably connected to the inner wall of the skid-mounted main tank body, the outer side of each stirring shaft has a stirring rod, the inner wall of the skid-mounted main tank body is fixedly connected to a bevel gear box, the stirring mechanism also includes an electric motor and a reducer fixedly connected to the outer side of the skid-mounted main tank body, the output end of the reducer is connected to a universal shaft through a coupling, the end of the universal shaft is connected to the input end of the bevel gear box to form a differential, the two output ends of the differential are respectively connected to the two stirring shafts, and the rotational speeds of the two stirring shafts can complement each other.

[0009] As a preferred embodiment, there are two raw material input ends set on the top of the skid-mounted main tank body, which are distributed above the two stirring shafts. Raw materials are alternately input from the two raw material input ends to reduce the probability of the stirring shaft being blocked and stopped.

[0010] As a preferred embodiment, the inner wall of the skid-mounted main tank is provided with a bearing seat, and the stirring shaft is rotatably connected to the bearing seat via a bearing to ensure the stability of the rotation of the stirring shaft.

[0011] As a preference, the pipe connected to the asphalt output end is an inner sleeve, and the pipes connected to the heat transfer oil inlet and the heat transfer oil outlet are outer sleeves, which are sleeved outside the inner sleeve for recovering heat.

[0012] As a preference, a vibrating hopper is further provided outside the skid-mounted main tank body, a belt conveyor scale is provided below the vibrating hopper, and a hoist is provided at the other end of the belt conveyor scale. The hoist sends the material to the raw material input end through the heating trough to realize automatic quantitative loading.

[0013] As a preference, the heating tank is located above the skid-mounted main tank body, and the pipes connecting the heat transfer oil inlet and outlet and the heat transfer oil jacket are located below the heating tank to quickly preheat the raw materials.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] (1) By combining the stirring mechanism and the homogenizing mechanism, the materials are mixed and refined in stages, which greatly improves the efficiency of refinement and dispersion and achieves better mixing effect;

[0016] (2) By designing the mixing mechanism with a split shaft and utilizing a differential structure, the probability of the mixing mechanism stalling is effectively reduced, making the operation safer and more efficient;

[0017] (3) By designing a casing structure to recover heat from the discharged asphalt, energy consumption is effectively reduced and carbon emissions are significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the overall structure of the modified asphalt mixing device.

[0019] Figure 2 This is the installation diagram of the homogenizer and stirring mechanism of the modified asphalt mixing device on the skid-mounted main tank.

[0020] Figure 3 This is a schematic diagram of the driving part of the stirring mechanism of the modified asphalt mixing device.

[0021] Figure 4 This is a planar cross-sectional view of the homogenizer of the mixing device for the modified asphalt.

[0022] Figure 5 This is a planar cross-sectional view of the slow-flow end cover of the modified asphalt mixing device.

[0023] In the figure: 1. Vibrating hopper; 2. Belt conveyor scale; 3. Elevator; 4. Heating tank; 5. Skid-mounted main tank; 501. Raw material input end; 502. Asphalt output end; 503. Thermal oil inlet; 504. Thermal oil outlet; 6. Homogenizer; 601. Cylinder; 602. Reducer motor; 603. Drive shaft; 604. Turntable; 650. Slow flow end cover; 651. Bottom cover; 652. Top cover; 653. Suction port; 654. Feed port; 655. Buffer cylinder; 660. Reflux pipe; 661. Discharge port; 662. Return port; 607. Hot jacket; 7. Stirring mechanism; 701. Motor; 702. Reducer; 703. Universal joint; 704. Bevel gear box; 705. Stirring shaft; 706. Stirring rod; 707. Bearing seat. DETAILED DESCRIPTION

[0024] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application 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 cannot be understood as limiting the specific scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0027] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units expressly listed, but may include other steps or units not expressly listed or inherent to such process, method, product or apparatus.

[0028] like Figure 1-5 The modified asphalt mixing device shown includes a horizontally placed skid-mounted main tank body 5, which is actually the length of the skid-mounted main tank body 5 in the horizontal direction. The skid-mounted main tank body 5 is provided with a homogenizer 6 and a stirring mechanism 7. The stirring mechanism 7 performs coarse processing, and the homogenizer 6 performs fine processing. The two work together to achieve efficient mixing. The specific structure of the homogenizer 6 includes a cylinder 601 fixedly connected to the skid-mounted main tank body 5. The cylinder 601 is cylindrical and fixedly connected to the top of the skid-mounted main tank body 5 with a vertical axis. The upper end of the cylinder 601 is fixedly connected to a reduction motor 602, which can output a higher speed and torque. The output end of the reduction motor 602 is connected to a transmission shaft 603 through a coupling. The shaft 603 is coaxial with the cylinder 601, and the outer side of the cylinder 601 is connected to the return pipe 660, which is communicated with the interior of the cylinder 601 through the discharge port 661. The end of the return pipe 660 located inside the skid-mounted main tank body 5 is a return port 662, and the cylinder 601 is communicated with the interior of the skid-mounted main tank body 5 through the return port 662. The outer side of the transmission shaft 603 located inside the cylinder 601 is fixedly connected with a turntable 604 for driving the fluid to generate centrifugal force. The upper surface of the turntable 604 has concentric corrugations, which can provide radial force to the material, thereby accelerating the material refinement speed. After the material is sucked into the cylinder 601, it is discharged through the return port 662. This is repeated to achieve the refinement and dispersion of the material and achieve a homogenous effect.

[0029] The lower end of the cylinder 601 is located in the skid-mounted main tank body 5 and is fixedly connected to a slow-flow end cover 650. The slow-flow end cover 650 can restrict the flow direction of the fluid, so that the fluid can flow into the cylinder 601 more stably. Specifically: the slow-flow end cover 650 includes an upper cover 652 fixedly connected to the lower end of the cylinder 601, and the upper cover 652 is provided with a plurality of feed ports 654 that pass through the upper and lower surfaces, so the feed port 654 is connected to the interior of the cylinder 601, and the lower end of the upper cover 652 is fixedly connected to the bottom cover 651 through the buffer cylinder 655. The bottom cover 651 is also provided with a plurality of suction ports 653 that pass through the upper and lower surfaces. The positions of the suction ports 653 do not correspond to the feed ports 654. In this way, the fluid can form a relatively stable turbulence in the buffer cylinder 655 and then continue to enter the cylinder 601 upward.

[0030] The stirring mechanism 7 includes a pair of stirring shafts 705 rotatably connected to the inner wall of the skid-mounted main tank body 5. The two stirring shafts 705 are parallel to the length direction of the skid-mounted main tank body 5. The inner wall of the skid-mounted main tank body 5 has a bearing seat 707. The two stirring shafts 705 are rotatably connected to the bearing seat 707 through a bearing at one end of each stirring shaft. The outer side of each stirring shaft 705 has a stirring rod 706 for directly applying force to the material. The inner wall of the skid-mounted main tank body 5 is fixedly connected to a bevel gear box 704 with multiple meshing bevel gears inside. The stirring mechanism 7 also includes a motor fixedly connected to the outer side of the skid-mounted main tank body 5 701 and reducer 702, the output end of the motor 701 is connected to the input end of the reducer 702, the output end of the reducer 702 is connected to the universal joint 703 through a coupling, and the end of the universal joint 703 is connected to the input end of the bevel gear box 704 to form a differential, and the two output ends of the differential are respectively connected to the two stirring shafts 705. When the rotational resistance of one stirring shaft 705 increases, the other stirring shaft 705 accelerates the stirring to break up the material. The rotating stirring shaft 705 can relieve the blocked stirring shaft 705, thereby reducing the probability of the two stirring shafts 705 stopping at the same time.

[0031] The skid-mounted main tank body 5 is provided with a raw material input end 501, from which other raw materials such as natural Butun rock are input. There are two raw material input ends 501 set on the top of the skid-mounted main tank body 5, which are distributed above the two stirring shafts 705. Raw materials are alternately input from different raw material input ends 501, which can effectively reduce the probability of the stirring shaft 705 being blocked and stopped.

[0032] The side wall of the skid-mounted main tank body 5 is provided with an asphalt output end 502, a thermal oil inlet 503 and a thermal oil outlet 504. The pipe connected to the asphalt output end 502 is an inner sleeve, and the pipe connected to the thermal oil inlet 503 and the thermal oil outlet 504 is an outer sleeve. The outer sleeve is sleeved outside the inner sleeve, so that the flowing heat-conducting medium can absorb the heat of the asphalt just discharged, thereby recovering energy, reducing the energy consumption of the equipment during operation, and achieving the purpose of energy saving and emission reduction. A heat jacket 607 is provided on the outer sleeve of the cylinder 601, and the thermal oil inlet 503 and the thermal oil outlet 504 are connected to the inside of the heat jacket 607. The heat-conducting medium flowing into the heat jacket 607 transfers heat to the flowing material in the cylinder 601, so that the material maintains a good flow state.

[0033] A vibrating hopper 1 is also provided outside the skid-mounted main tank body 5, which can continuously discharge the raw materials downward. A belt conveyor scale 2 is provided below the vibrating hopper 1, which weighs the passing materials during the conveying process. A hoist 3 is provided at the other end of the belt conveyor scale 2, which can lift the materials from a low place to a high place. The hoist 3 sends the materials to the raw material input end 501 through the heating tank 4, and finally enters the skid-mounted main tank body 5. The heating tank 4 is located above the skid-mounted main tank body 5, and the pipes connecting the thermal oil inlet 503 and the thermal oil outlet 504 and the heat jacket 607 are located below the heating tank 4 and close to the bottom of the heating tank 4, so as to preheat the raw materials that are about to enter the skid-mounted main tank body 5.

[0034] Working principle: During operation, crushed raw materials such as Tianrebutun rock enter the skid-mounted main tank 5 from the raw material input end 501, and are initially mixed to form a mixed system with good fluidity under the action of the stirring rod 706 of the stirring mechanism 7. The materials will automatically enter the cylinder 601 through the slow-flow end cover 650, and the reduction motor 602 on the top of the homogenizer 6 is started, and the turntable 604 is driven to rotate through the transmission shaft 603. The rotating turntable 604 will push the materials to rotate together, and the materials generated by centrifugal force will stick to the inner wall of the cylinder 601 until they meet the discharge port 661. , and can return to the skid-mounted main tank body 5 from the return port 662 through the reflux pipe 660, waiting to be sucked into the cylinder 601 again by the slow-flow end cover 650. In this repeated process, the material collides with the narrowed suction port 653, the feed port 654, the turntable 604 and the corrugated structure on the top of the turntable 604, and gradually becomes refined and dispersed, thereby mixing to obtain a homogeneous asphalt material, which can be discharged from the asphalt output end 502. The discharged asphalt transfers heat to the heat transfer oil and continues to heat the subsequent materials. In this process, the heat utilization rate is improved and the energy consumption is reduced.

[0035] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A mixing device for modified asphalt, characterized in that: The invention comprises a skid-mounted main tank body (5) placed horizontally, wherein a homogenizing emulsifier (6) and a stirring mechanism (7) are provided on the skid-mounted main tank body (5), wherein the homogenizing emulsifier (6) comprises a cylinder (601) fixedly connected to the skid-mounted main tank body (5), wherein the lower end of the cylinder (601) is located in the skid-mounted main tank body (5) and is fixedly connected to a slow-flow end cover (650), which is suitable for allowing the fluid to flow into the skid-mounted main tank body more stably. Inside the cylinder (601), a heat jacket (607) is provided on the outer shell of the cylinder (601), the skid-mounted main tank body (5) is provided with a raw material input end (501), and the side wall of the skid-mounted main tank body (5) is provided with an asphalt output end (502), a heat transfer oil inlet (503) and a heat transfer oil outlet (504), and the heat transfer oil inlet (503) and the heat transfer oil outlet (504) are connected to the interior of the heat jacket (607).

2. The modified asphalt mixing device according to claim 1, characterized in that: The cylinder (601) is fixedly connected to the top of the skid-mounted main tank body (5); the upper end of the cylinder (601) is fixedly connected to a reduction motor (602); the output end of the reduction motor (602) is connected to a transmission shaft (603) via a coupling; the outer side of the cylinder (601) is connected to a return pipe (660); the return pipe (660) is communicated with the inside of the cylinder (601) via a discharge port (661); one end of the return pipe (660) located inside the skid-mounted main tank body (5) is a return port (662); the outer side of the transmission shaft (603) located inside the cylinder (601) is fixedly connected to a turntable (604), which is suitable for driving the fluid to generate centrifugal force. After the material is sucked into the cylinder (601), it is discharged through the return port (662), thereby achieving material refinement and dispersion.

3. The modified asphalt mixing device according to claim 2, characterized in that: The slow-flow end cover (650) includes an upper cover (652) fixedly connected to the lower end of the cylinder (601), the lower end of the upper cover (652) is fixedly connected to the bottom cover (651) via a buffer tube (655), the bottom cover (651) is provided with a plurality of suction ports (653) passing through the upper and lower surfaces, and the upper cover (652) is provided with a plurality of feed ports (654) passing through the upper and lower surfaces.

4. The modified asphalt mixing device according to claim 3, characterized in that: The upper surface of the turntable (604) has concentric corrugations suitable for providing radial force to the material.

5. The modified asphalt mixing device according to any one of claims 1 to 4, characterized in that: The stirring mechanism (7) comprises a pair of stirring shafts (705) rotatably connected to the inner wall of the skid-mounted main tank body (5), the outer side of each stirring shaft (705) is provided with a stirring rod (706), the inner wall of the skid-mounted main tank body (5) is fixedly connected to a bevel gear box (704), the stirring mechanism (7) further comprises a motor (701) and a reducer (702) fixedly connected to the outer side of the skid-mounted main tank body (5), the output end of the reducer (702) is connected to a universal shaft (703) via a coupling, the end of the universal shaft (703) is connected to the input end of the bevel gear box (704) to form a differential, and the two output ends of the differential are respectively connected to the two stirring shafts (705).

6. The modified asphalt mixing device according to claim 5, characterized in that: There are two raw material input ends (501) arranged on the top of the skid-mounted main tank body (5), which are distributed above the two stirring shafts (705).

7. The modified asphalt mixing device according to claim 6, characterized in that: The inner wall of the skid-mounted main tank body (5) is provided with a bearing seat (707), and the stirring shaft (705) is rotatably connected to the bearing seat (707) via a bearing.

8. The modified asphalt mixing device according to any one of claims 1 to 4, characterized in that: The pipe connected to the asphalt output end (502) is an inner sleeve, and the pipes connected to the heat transfer oil inlet (503) and the heat transfer oil outlet (504) are outer sleeves, and the outer sleeve is sleeved outside the inner sleeve.

9. The modified asphalt mixing device according to any one of claims 1 to 4, characterized in that: A vibrating hopper (1) is further provided outside the skid-mounted main tank body (5), a belt conveyor scale (2) is provided below the vibrating hopper (1), and a hoist (3) is provided at the other end of the belt conveyor scale (2), and the hoist (3) delivers the material to the raw material input end (501) through the heating tank (4).

10. The modified asphalt mixing device according to claim 9, characterized in that: The heating tank (4) is located above the skid-mounted main tank body (5), and the pipes connecting the heat transfer oil inlet (503) and the heat transfer oil outlet (504) and the heat jacket (607) are located below the heating tank (4).

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