An asphalt mixing plant

Abstract

The application relates to the technical field of asphalt processing, and provides an asphalt stirring and mixing device, which comprises a rack, a stirring tank, a cover, a lifting assembly, a stirring assembly and a heating pipe, the stirring tank is provided with an opening, and the lifting assembly is arranged on the rack; the cover is located directly above the stirring tank and is used for sealing the opening of the stirring tank; the lifting assembly is connected with the stirring tank and is used for driving the stirring tank to lift; the stirring assembly is arranged at the cover and is used for stirring materials in the stirring tank; wherein the stirring tank is a sandwich structure and comprises an outer layer and an inner layer; a cavity is formed between the outer layer and the inner layer; the heating pipe is arranged in the cavity; and the outer layer is made of a heat insulation material. The application has the effect of improving the safety in the asphalt mixing process.

Description

Technical Field

[0001] This application relates to the field of asphalt processing technology, and in particular to an asphalt mixing and blending device. Background Technology

[0002] Asphalt pavement material recycling technology involves adding old asphalt pavement that needs repair or is abandoned back into a hot mix mixer to form a recycled asphalt mixture with road performance. Therefore, the hot mixing speed of the hot mix mixer affects the efficiency of asphalt pavement paving.

[0003] Existing patents, such as Chinese Patent Publication No. CN107456897A, entitled "An Asphalt Mixing and Stirring Device," include a mixing cylinder, a motor, and a stirring shaft. The mixing cylinder has an inlet at the top and an outlet at the bottom. The stirring shaft is located inside the mixing cylinder, with its upper end extending out and connected to the motor. A heat-conducting channel is spirally wound around the outer shell of the mixing cylinder, and this channel is connected to a heating pump via a pipe. A spiral guide plate is spirally distributed along the axial direction within the inner layer of the mixing cylinder, and stirring blades and a dispersing disc are alternately arranged along the axial direction on the stirring shaft.

[0004] The aforementioned mixing device improves the asphalt dispersion effect by setting a spiral guide plate on the inner layer of the mixing drum; at the same time, it is equipped with a heat conduction channel and a temperature sensor to effectively monitor the temperature inside the mixing drum and heat the entire mixing drum, which can effectively prevent adhesion and improve the quality of modified asphalt.

[0005] Regarding the aforementioned technologies, existing mixing devices place the heat conduction channels on the outer layer of the mixing cylinder. During operation, workers are prone to accidentally touching the heat conduction channels, posing a risk of burns. Therefore, improvements are needed. Utility Model Content

[0006] To improve safety during the asphalt mixing process, this application provides an asphalt mixing apparatus.

[0007] The asphalt mixing device provided in this application adopts the following technical solution:

[0008] An asphalt mixing device includes a frame, a mixing tank, a lid, a lifting assembly, a mixing assembly, and a heating pipe. The mixing tank has an opening and is lifted and mounted on the frame. The lid is located directly above the mixing tank and is used to seal the opening of the mixing tank. The lifting assembly is connected to the mixing tank and is used to drive the mixing tank to move up and down. The mixing assembly is located at the lid and is used to mix the material inside the mixing tank. The mixing tank has a sandwich structure, including an outer layer and an inner layer, with a cavity formed between the outer and inner layers. The heating pipe is wound around the cavity, and the outer layer is made of heat-insulating material.

[0009] By adopting the above technical solution, when asphalt needs to be mixed, workers first place the asphalt raw materials into the mixing tank. Then, using the lifting component, the mixing tank is moved towards the lid, ensuring the lid covers the opening and reduces the possibility of material spillage during mixing. To reduce resistance when inserting the mixing component, it is best to rotate it during insertion; that is, start mixing first, then operate the lifting mechanism. This method optimizes the mixing insertion and utilizes the mixing component to agitate the raw materials within the tank. Simultaneously, the heating element is activated. The heat generated by the heating element, through heat transfer, heats the mixing tank, further enhancing asphalt mixing. Because the outer layer of the mixing tank is made of heat-insulating material, the heating element is not directly exposed, improving safety during asphalt mixing and reducing the risk of burns.

[0010] Preferably, the stirring assembly includes a stirring motor and a stirring fork. The stirring fork is rotatably connected to the side of the vessel lid facing the stirring tank and is used to stir the material. The output shaft of the stirring motor is connected to the stirring fork and is used to drive the stirring fork to rotate.

[0011] By adopting the above technical solution, the stirring motor can drive the stirring fork to rotate, so that the stirring fork continuously stirs the material in the mixing tank to complete the mixing.

[0012] Preferably, the lifting assembly includes a first slide, a second slide, a first connecting block, and a second connecting block. Two vertical grooves are provided on the frame. The first slide and the second slide are slidably connected in the two grooves. The first connecting block is used to connect the mixing tank and the first slide, and the second connecting block is used to connect the mixing tank and the second slide.

[0013] By adopting the above technical solution, a linear cylinder can be used to control the up-and-down movement of the first and second slides. The presence of the sliding groove can guide and limit the movement of the first and second slides, improving movement stability. The mixing tank is connected to the first and second slides by the action of the first and second connecting blocks, realizing the lifting and lowering of the mixing tank.

[0014] Preferably, it further includes a flipping component, wherein the first connecting block is rotatably connected to the first slide, the second connecting block is rotatably connected to the second slide, and the rotation axes of the first connecting block and the second connecting block are on the same straight line; the flipping component is disposed on the second connecting block and is used to control the flipping of the mixing tank.

[0015] By adopting the above technical solution, after the asphalt mixing is completed, the overturning component can be controlled to overturn the mixing tank so that the material inside the mixing tank can be poured out and the material can be discharged.

[0016] Preferably, the flipping assembly includes a swing rod and a locking block. The swing rod is hinged to the second connecting block, and the locking block is disposed on the swing rod. A corresponding locking groove is provided on the second slide, and the locking block is locked in the locking groove. When the locking block is locked in the locking groove, the second connecting block cannot rotate relative to the second slide.

[0017] By adopting the above technical solution, when material needs to be discharged, the operator applies external force to the swing rod, causing the locking block to disengage from the locking slot and releasing the connection between the swing rod and the second slide. Then, a rotational force is applied to the swing rod, thereby controlling the entire mixing tank to tilt, so that the asphalt can be poured out from the opening of the mixing tank.

[0018] Preferably, it also includes a guide plate, which is located below the mixing tank and on the path of the mixing tank's overturning, and is used to guide the asphalt material to be discharged.

[0019] By adopting the above technical solution, after the mixing tank is overturned, the asphalt flows from the opening of the mixing tank onto the guide plate. The guide plate can play a role in buffering and guiding the material so that the asphalt can be smoothly poured into the collection box.

[0020] Preferably, a limiting plate is connected to the outer wall of the vessel lid, and a feed inlet is formed between the limiting plate and the vessel lid, the feed inlet being used to feed in auxiliary materials.

[0021] By adopting the above technical solution, it may be necessary to add certain auxiliary materials during the asphalt mixing process to improve the mixing effect. At this time, the staff can add the corresponding auxiliary materials into the feed inlet to complete the feeding without stopping the mixing, thereby improving the convenience of production.

[0022] Preferably, it also includes a control button for controlling the start and stop of the stirring assembly and the lifting assembly.

[0023] By adopting the above technical solution, operators can control the operation of the mixing and lifting components using control buttons. These control buttons are the key interface connecting people and equipment, enabling precise control of the entire mixing device through a process of "input command - signal transmission - equipment response."

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] (1) By setting the mixing tank as a sandwich structure, the thermal conductivity of the insulation material is relatively poor, and at the same time it acts as a barrier to the heating pipe, avoiding direct exposure of the heating pipe, thereby improving the safety of the asphalt mixing process and making it less likely for people to be burned.

[0026] (2) By setting up a tilting component, workers can use the tilting component to control the mixing tank to tilt so that the asphalt in the mixing tank can be poured out.

[0027] (3) By setting up a guide plate, the guide plate can buffer and guide the asphalt during the feeding process of the mixing tank, making it convenient for the asphalt to be poured into the collection box. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the mixing device in the embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the mixing device from another perspective in the embodiments of this application;

[0030] Figure 3 This is a cross-sectional schematic diagram of the mixing tank in an embodiment of this application;

[0031] Figure 4 This is a partial structural schematic diagram of the mixing device in the embodiments of this application.

[0032] Reference numerals: 1. Frame; 2. Mixing tank; 3. Lid; 4. Lifting assembly; 41. First slide; 42. Second slide; 43. First connecting block; 44. Second connecting block; 5. Mixing assembly; 51. Mixing motor; 52. Mixing fork; 6. Heating tube; 7. Limiting plate; 8. Feed inlet; 9. Slide groove; 10. Tilting assembly; 101. Swing rod; 102. Locking block; 11. Control button; 12. Guide plate; 13. Slot; 14. Collection frame. Detailed Implementation

[0033] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0034] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0036] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0037] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0038] This application discloses an asphalt mixing device. (Refer to...) Figures 1 to 3 The mixing and blending device includes a frame 1, a mixing tank 2, a lid 3, a lifting assembly 4, a mixing assembly 5, and a heating pipe 6. The frame 1 serves as the carrier. The mixing tank 2 is cylindrical with an opening, and is lifted and lowered onto the frame 1. The lid 3 is mounted on the frame 1 and located directly above the mixing tank 2, covering the opening of the mixing tank 2. The lifting assembly 4 is connected to the mixing tank 2 and drives its vertical movement. The mixing assembly 5 is installed at the location of the lid 3 and is used to mix the materials inside the mixing tank 2. The mixing tank 2 has a sandwich structure, including an outer layer and an inner layer, with a cavity formed between them. The heating pipe 6 is wound around the cavity and used to heat the mixing tank 2. The outer layer is made of heat-insulating material, a conventional material that can be selected appropriately based on actual production needs.

[0039] When asphalt needs to be mixed, the workers first place the asphalt raw material into the mixing tank 2. Then, the lifting component 4 drives the mixing tank 2 to move towards the lid 3 so that the lid 3 can block the opening of the mixing tank 2. Then, the mixing component 5 is used to mix the raw material in the mixing tank 2, and at the same time, the heating pipe 6 is activated to heat the mixing tank 2 to ensure that the asphalt is mixed at a certain temperature.

[0040] In this embodiment, a limiting plate 7 is also fixedly connected to the outer wall of the kettle lid 3, and a feed inlet 8 is formed between the limiting plate 7 and the kettle lid 3. The feed inlet 8 is used to allow auxiliary materials to enter the mixing tank 2. During the asphalt mixing process, it may be necessary to add certain auxiliary materials to improve the mixing effect. At this time, the operator can add the corresponding auxiliary materials into the feed inlet 8 to complete the feeding without stopping the mixing.

[0041] Specifically, the stirring assembly 5 includes a stirring motor 51 and a stirring fork 52. The stirring fork 52 is rotatably connected to the side of the lid 3 facing the mixing tank 2. The rotating shaft of the stirring fork 52 is vertical and used to stir the material. The stirring motor 51 is installed on the side of the lid 3 away from the mixing tank 2. The output shaft of the stirring motor 51 passes through the lid 3 and is connected to the stirring fork 52, and is used to drive the stirring fork 52 to rotate. The stirring motor 51 can drive the stirring fork 52 to rotate, so that the stirring fork 52 continuously stirs the material in the mixing tank 2, completing the mixing.

[0042] The lifting assembly 4 includes a first slide 41, a second slide 42, a first connecting block 43, and a second connecting block 44. Two parallel vertical grooves 9 are formed on the frame 1. The first slide 41 and the second slide 42 are slidably connected within the two grooves 9. Various driving components can be used to move the first slide 41 and the second slide 42, such as a linear cylinder. The piston rod of the linear cylinder is connected to the two slides, thus controlling the linear motion of the two slides. The linear cylinder has a stroke control mechanism that can stop the piston rod at a predetermined position, achieving precise mechanical actions (such as clamping, pushing, lifting, etc.) and providing continuous, stable, and reliable pressure. The first connecting block 43 connects the mixing tank 2 and the first slide 41, and the second connecting block 44 connects the mixing tank 2 and the second slide 42. The first connecting block 43 and the second connecting block 44 are symmetrically distributed on both sides of the mixing tank 2. When the first slide 41 and the second slide 42 are moved using the linear cylinder, the mixing tank 2 can move closer to or further away from the lid 3. The presence of the slide groove 9 can guide and limit the movement of the first slide block 41 and the second slide block 42, thereby improving the stability of movement.

[0043] Combination Figure 4In this embodiment, the first connecting block 43 is rotatably connected to the first slide block 41, and the second connecting block 44 is also rotatably connected to the second slide block 42. The rotation axes of the first connecting block 43 and the second connecting block 44 are on the same straight line. The second connecting block 44 is also equipped with a tilting assembly 10, which controls the tilting of the mixing tank 2. After the asphalt mixing is completed, the operator can control the tilting assembly 10 to tilt the mixing tank 2, allowing the material inside to be poured out, thus completing the discharge process.

[0044] The tilting assembly 10 includes a swing rod 101 and a locking block 102. One end of the swing rod 101 is hinged to the second connecting block 44, and the other end of the swing rod 101 is fixedly connected to a spherical body. The locking block 102 is fixedly connected to the swing rod 101, and a corresponding locking groove 13 is provided on the second slide block 42, into which the locking block 102 engages. When the locking block 102 is engaged in the locking groove 13, the second connecting block 44 cannot rotate relative to the second slide block 42. When material needs to be discharged, the operator applies external force to the swing rod 101, causing the locking block 102 to disengage from the locking groove 13, thus releasing the connection between the swing rod 101 and the second slide block 42. Then, a rotational force is applied to the swing rod 101, thereby controlling the entire mixing tank 2 to tilt, so that asphalt can be poured out from the opening of the mixing tank 2.

[0045] In addition, a control button 11 is provided on the upper end of the frame 1. The control button 11 is used to control the mixing action of the mixing component 5 and the operation of the lifting component 4. The control button 11 is a key interface connecting the person and the equipment. Through the process of "input command - signal transmission - equipment response", the precise control of the entire mixing device is realized. A guide plate 12 is also fixedly connected to the frame 1. The guide plate 12 is located below the mixing tank 2 and is in the path of the mixing tank 2 when it is turned over. The guide plate 12 is used to guide the asphalt material. A collection frame 14 is installed below the guide plate 12. The collection frame 14 is used to collect the mixed asphalt material. When the mixing tank 2 is turned over, the asphalt flows from the opening of the mixing tank 2 to the guide plate 12. The guide plate 12 can buffer and guide the material so that the asphalt can be smoothly poured into the collection frame 14.

[0046] The implementation principle of the asphalt mixing device in this application embodiment is as follows: When asphalt needs to be mixed, the operator first places the asphalt raw material into the mixing tank 2. Then, the lifting component 4 drives the mixing tank 2 to move towards the lid 3 so that the lid 3 can block the opening of the mixing tank 2, reducing the possibility of material spillage during the mixing process. To reduce the resistance of the insertion of the mixing component 5, it is advisable to rotate the insertion, that is, start mixing first, and then run the lifting. This mixing insertion is optimal, and the mixing component 5 mixes the raw material in the mixing tank 2. At the same time, the heating pipe 6 is activated. The heat generated by the heating pipe 6 can heat up the mixing tank 2 through heat transfer, so as to better mix the asphalt. After the mixing is completed, the mixing tank 2 is controlled to descend and move away from the lid 3. Then, the tilting component 10 is used to control the mixing tank 2 to tilt so that the material in the mixing tank 2 can be poured out, completing the discharge.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An asphalt mixing and blending device, characterized in that, The equipment includes a frame (1), a mixing tank (2), a lid (3), a lifting assembly (4), a stirring assembly (5), and a heating tube (6). The mixing tank (2) has an opening and is lifted and mounted on the frame (1). The lid (3) is located directly above the mixing tank (2) and is used to seal the opening of the mixing tank (2). The lifting assembly (4) is connected to the mixing tank (2) and is used to drive the mixing tank (2) to lift and lower. The stirring assembly (5) is located at the lid (3) and is used to stir the material in the mixing tank (2). The mixing tank (2) has a sandwich structure, including an outer layer and an inner layer, with a cavity formed between the outer layer and the inner layer. The heating tube (6) is wound around the cavity, and the outer layer is made of heat-insulating material.

2. The asphalt mixing device according to claim 1, characterized in that, The stirring assembly (5) includes a stirring motor (51) and a stirring fork (52). The stirring fork (52) is rotatably connected to the side of the lid (3) facing the stirring tank (2). The stirring fork (52) is used to stir the material. The output shaft of the stirring motor (51) is connected to the stirring fork (52) and is used to drive the stirring fork (52) to rotate.

3. The asphalt mixing device according to claim 1, characterized in that, The lifting assembly (4) includes a first slide (41), a second slide (42), a first connecting block (43), and a second connecting block (44). Two vertical grooves (9) are provided on the frame (1). The first slide (41) and the second slide (42) are slidably connected in the two grooves (9). The first connecting block (43) is used to connect the mixing tank (2) and the first slide (41). The second connecting block (44) is used to connect the mixing tank (2) and the second slide (42).

4. The asphalt mixing device according to claim 3, characterized in that, It also includes a flipping component (10), wherein the first connecting block (43) is rotatably connected to the first slide (41), and the second connecting block (44) is rotatably connected to the second slide (42), and the rotation axes of the first connecting block (43) and the second connecting block (44) are on the same straight line; the flipping component (10) is disposed on the second connecting block (44) and is used to control the flipping of the mixing tank (2).

5. An asphalt mixing device according to claim 4, characterized in that, The flipping assembly (10) includes a swing rod (101) and a locking block (102). The swing rod (101) is hinged to the second connecting block (44), and the locking block (102) is disposed on the swing rod (101). A corresponding locking groove (13) is provided on the second slide (42), and the locking block (102) is engaged in the locking groove (13). When the locking block (102) is engaged in the locking groove (13), the second connecting block (44) cannot rotate relative to the second slide (42).

6. An asphalt mixing device according to claim 4, characterized in that, It also includes a guide plate (12), which is located below the mixing tank (2) and on the path of the mixing tank (2) turning over. The guide plate (12) is used to guide the asphalt to be fed.

7. An asphalt mixing device according to claim 1, characterized in that, A limiting plate (7) is connected to the outer wall of the kettle lid (3), and a feed inlet (8) is formed between the limiting plate (7) and the kettle lid (3). The feed inlet (8) is used to put in auxiliary materials.

8. An asphalt mixing device according to claim 1, characterized in that, It also includes a control button (11) for controlling the start and stop of the stirring assembly (5) and the lifting assembly (4).

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