Modified asphalt premixing device with automatic feeding function

Abstract

The utility model discloses a modified asphalt premixing device with automatic feeding function belongs to pitch processing technical field, including support base plate, the upper portion fixed with mixing bowl of support base plate, the inside of mixing bowl is provided with the stirring long shaft with stirring vane, and one side of mixing bowl is provided with spiral conveyor, and the inside of mixing bowl is provided with even feeding mechanism, and even feeding mechanism includes even feeding hopper and even extrusion hole, even feeding hopper is rotatably connected in the inner chamber of mixing bowl, and even extrusion hole is evenly arranged on the inner wall of even feeding hopper, the utility model discloses the even feeding mechanism of setting, and pitch modification material spreads to each range inside mixing bowl under the action of even feeding hopper that is evenly distributed and is provided with even extrusion hole, and the even feeding mode can improve the condition that pitch modification material is locally accumulated and influences even mixing efficiency due to the fixed point centralized material falling.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bitumen processing technical field, especially related to a modified bitumen premixing device with automatic feeding function. BACKGROUND

[0002] As a key material indispensable in the field of road construction, bitumen is widely used in the laying of infrastructure such as highways, urban roads, and airport runways. Ordinary bitumen gradually exposes many performance short boards in the long-term service process, such as easy softening and flowing at high temperature, leading to rutting disease of the pavement, affecting driving comfort and safety; brittle and hard under low temperature environment, easy to crack under vehicle load impact, shortening the service life of the road and increasing the maintenance cost. In order to overcome these limitations, modified bitumen emerges as the times require. By adding polymer (such as SBS, APP, etc.), rubber powder, fiber and other modifiers to the base bitumen, the high and low temperature performance, elastic recovery ability and anti-aging characteristics of bitumen can be significantly optimized, which meets the harsh requirements of modern complex and variable traffic conditions and severe weather on road materials, and promotes the application of modified bitumen in high-quality road engineering to become more popular. In the premixing link of modified bitumen production, spiral feeders are often used to convey modified bitumen production raw materials into the mixing barrel.

[0003] At present, the use of spiral feeders for feeding operation may have a concentrated falling position, so that continuous fixed-point falling is prone to accumulation and affects uniform mixing efficiency. In addition, some bitumen modified materials may produce clumping after preliminary mixing, and the clumped modified materials are not easy to be mixed efficiently and uniformly in the bitumen mixing barrel. Therefore, a modified bitumen premixing device with automatic feeding function is needed to solve the problems in the prior art. UTILITY MODEL CONTENT

[0004] The utility model is aimed at providing a modified bitumen premixing device with automatic feeding function to solve the problems raised in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A modified asphalt premixing device with automatic feeding function, including support base plate, the upper portion of support base plate is fixed with mixing barrel, the inside of mixing barrel is provided with stirring long shaft with stirring blade, one side of mixing barrel is provided with spiral conveyor, the inside of mixing barrel is provided with uniform feeding mechanism, uniform feeding mechanism includes uniform feeding hopper and uniform extrusion hole, the inner chamber of mixing barrel is rotatably connected with uniform feeding hopper, the inner wall of uniform feeding hopper is uniformly provided with uniform extrusion hole, the inside of uniform feeding hopper is provided with scraper extrusion mechanism, the inner wall of uniform feeding hopper is rotatably connected with extrusion rotary plate, the inner wall of extrusion rotary plate is fixed with connecting shaft, the surface of stirring long shaft is fixedly provided with driving gear, the driving gear is engagedly connected with driven gear.

[0006] It should be noted in the scheme that the driven gear is fixedly sleeved on the surface of the connecting shaft, and the lower part of the extrusion rotary plate is attached to the inner wall of the uniform feeding hopper.

[0007] Further, it should be noted that the rear end of the support base plate is provided with a lifting frame, and the upper end of the connecting shaft is rotatably connected to the top frame of the lifting frame.

[0008] Further, it should be noted that the top frame of the lifting frame is fixedly embedded with a rotating bearing, and the upper end of the connecting shaft extends into the rotating bearing.

[0009] As a preferred embodiment, the inner bottom wall of the uniform feeding hopper is provided with an assembly opening, and the stirring long shaft is fixedly provided at the assembly opening of the uniform feeding hopper.

[0010] As a preferred embodiment, one side of the support base plate is provided with an asphalt modification material tank, and the feed end of the spiral conveyor is arranged in the asphalt modification material tank.

[0011] As a preferred embodiment, the inside of the mixing barrel below the uniform feeding hopper is provided with a mixing workroom, and the inside of the mixing barrel above the uniform feeding hopper is provided with a filtering workroom.

[0012] As a preferred embodiment, the lower part of the top frame of the lifting frame is fixedly provided with a stirring motor, and the upper end of the stirring long shaft is fixedly provided on the output shaft of the stirring motor.

[0013] Compared with the prior art, the modified asphalt premixing device with automatic feeding function provided by the utility model has at least the following beneficial effects:

[0014] Through the even feeding mechanism, the asphalt modified material is diffused to each range inside the mixing cylinder under the action of the even feeding hopper with even extrusion holes, and the even feeding mode can improve the situation that the local accumulation of the asphalt modified material caused by the fixed-point concentrated feeding affects the uniform mixing efficiency.

[0015] Through the scraper extrusion mechanism, the even feeding hopper and the extrusion rotating plate rotate at different speeds, so that the rotation of the extrusion rotating plate along the inner wall of the even feeding hopper can perform the rotating extrusion operation on the asphalt modified material stored inside, thereby accelerating the uniform extrusion and feeding efficiency of the even feeding hopper, and the mode that the extrusion rotating plate rotates and cuts the asphalt modified material in the even feeding hopper can reduce the caked material and improve the material fluidity. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure perspective view of the utility model;

[0017] Figure 2 It is the mixing cylinder cross section structure perspective view of the utility model;

[0018] Figure 3 It is the even feeding hopper structure perspective view of the utility model;

[0019] Figure 4 It is the extrusion rotating plate structure perspective view of the utility model;

[0020] Figure 5 It is the assembly port structure perspective view of the utility model.

[0021] In the drawing: 1, support bottom plate; 2, lifting frame; 3, stirring motor; 4, mixing cylinder; 5, stirring long shaft; 6, even feeding hopper; 7, even extrusion hole; 8, extrusion rotating plate; 9, assembly port; 10, driving gear; 11, driven gear; 12, connecting rotating shaft; 13, rotating bearing; 14, asphalt modified material box; 15, screw conveyor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Please refer to Figures 1-5The utility model provides a modified asphalt premixing device with automatic feeding function, including support base plate 1, the upper portion of support base plate 1 is fixed with mixing cylinder 4, the inside of mixing cylinder 4 is provided with the stirring long shaft 5 of stirring vane, one side of mixing cylinder 4 is provided with spiral conveyor 15, the inside of mixing cylinder 4 is provided with uniform feeding mechanism, and uniform feeding mechanism includes uniform feeding hopper 6 and uniform extrusion hole 7, and uniform feeding hopper 6 is rotatably connected in the inner chamber of mixing cylinder 4, and uniform extrusion hole 7 is evenly arranged on the inner wall of uniform feeding hopper 6, and the inside of uniform feeding hopper 6 is provided with scraper extrusion mechanism, and scraper extrusion mechanism includes extrusion rotating plate 8, driving gear 10, driven gear 11 and connecting shaft 12, and extrusion rotating plate 8 is rotatably connected on the inner wall of uniform feeding hopper 6, and connecting shaft 12 is fixed on the inner wall of extrusion rotating plate 8, and driving gear 10 is sleeved and fixed on the surface of stirring long shaft 5, and driven gear 11 is engagedly connected on driving gear 10.

[0024] Further as Figure 1 , Figure 2 and Figure 3 illustrated, it is worth specifically explained that the driven gear 11 is sleeved and fixed on the surface of the connecting shaft 12, and the lower part of the extrusion rotating plate 8 is attached to the inner wall of the uniform feeding hopper 6.

[0025] Further as Figure 3 illustrated, it is worth specifically explained that the rear end of the support base plate 1 is provided with the lifting frame 2, and the upper end of the connecting shaft 12 is rotatably connected to the top frame of the lifting frame 2.

[0026] The present scheme has the following working process: in use, the spiral conveyor 15 guides the asphalt modification material stored in the asphalt modification material box 14 into the mixing cylinder 4, the asphalt modification material falls onto the uniform feeding hopper 6, the stirring long shaft 5 drives the uniform feeding hopper 6 to rotate at high speed, so that the asphalt modification material diffuses to each range inside the mixing cylinder 4 under the action of the uniform feeding hopper 6 uniformly distributed with the uniform extrusion hole 7, and the uniform feeding mode can improve the condition that the local accumulation of asphalt modification material affects the uniform mixing efficiency caused by the fixed-point concentrated feeding.

[0027] According to the above working process, it can be known that the asphalt modification material diffuses to each range inside the mixing cylinder 4 under the action of the uniform feeding hopper 6 uniformly distributed with the uniform extrusion hole 7, and the uniform feeding mode can improve the condition that the local accumulation of asphalt modification material affects the uniform mixing efficiency caused by the fixed-point concentrated feeding.

[0028] Further as Figure 2 , Figure 4 and Figure 5 illustrated, it is worth specifically explained that the top frame of the lifting frame 2 is embedded and fixed with the rotating bearing 13, and the upper end of the connecting shaft 12 extends into the rotating bearing 13.

[0029] Further as Figure 4 illustrated, it is worth noting that the inner bottom wall of the uniform feeding funnel 6 is provided with a mounting opening 9, and the stirring long shaft 5 is fixed at the mounting opening 9 of the uniform feeding funnel 6.

[0030] Further as Figure 1 illustrated, it is worth noting that one side of the support bottom plate 1 is provided with an asphalt modified material box 14, and the feeding end of the screw conveyor 15 is arranged in the asphalt modified material box 14.

[0031] Further as Figure 1 illustrated, it is worth noting that the inside of the mixing cylinder 4 is provided with a mixing working chamber below the uniform feeding funnel 6, and is provided with a filtering working chamber above the uniform feeding funnel 6, and during the stirring process of the stirring long shaft 5, the driven gear 11 connected with the driving gear 10 rotates at the same time, and the gear size of the driven gear 11 is larger than that of the driving gear 10, so that the uniform feeding funnel 6 and the extrusion rotating plate 8 rotate at different speeds, so that the rotation of the extrusion rotating plate 8 along the inner wall of the uniform feeding funnel 6 can perform a rotating extrusion operation on the asphalt modified material stored inside, thereby accelerating the uniform extrusion and feeding efficiency of the uniform feeding funnel 6, and the way of the extrusion rotating plate 8 rotating and cutting the asphalt modified material in the uniform feeding funnel 6 can reduce the caking material and improve the material fluidity.

[0032] Further as Figure 1 illustrated, it is worth noting that the top rack of the lifting frame 2 is fixed with a stirring motor 3, and the upper end of the stirring long shaft 5 is fixed on the output shaft of the stirring motor 3.

[0033] In summary: The asphalt modified material is diffused to each range inside the mixing cylinder 4 under the action of the uniform feeding funnel 6 which is uniformly distributed with uniform extrusion holes 7, and the uniform feeding method can improve the condition that the local accumulation of asphalt modified material affects the uniform mixing efficiency caused by the fixed-point concentrated feeding; the uniform feeding funnel 6 and the extrusion rotating plate 8 rotate at different speeds, so that the rotation of the extrusion rotating plate 8 along the inner wall of the uniform feeding funnel 6 can perform a rotating extrusion operation on the asphalt modified material stored inside, thereby accelerating the uniform extrusion and feeding efficiency of the uniform feeding funnel 6, and the way of the extrusion rotating plate 8 rotating and cutting the asphalt modified material in the uniform feeding funnel 6 can reduce the caking material and improve the material fluidity.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Although embodiments of the present application have been shown and described, this does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application. With regard to the embodiment content of the present application, it can be understood by those skilled in the art that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principle and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A modified asphalt premixing device with automatic feeding function, comprising a supporting bottom plate (1), characterized in that: The upper portion of the supporting bottom plate (1) is fixed with a mixing cylinder (4), the inside of the mixing cylinder (4) is provided with a stirring long shaft (5) with stirring blades, one side of the mixing cylinder (4) is provided with a screw conveyor (15), the inside of the mixing cylinder (4) is provided with a uniform feeding mechanism, the uniform feeding mechanism comprises a uniform feeding hopper (6) and a uniform extrusion hole (7), the uniform feeding hopper (6) is rotationally connected in the inner cavity of the mixing cylinder (4), the uniform extrusion hole (7) is uniformly formed on the inner wall of the uniform feeding hopper (6), the inside of the uniform feeding hopper (6) is provided with a scraper extrusion mechanism, the scraper extrusion mechanism comprises an extrusion rotating plate (8), a driving gear (10), a driven gear (11) and a connecting rotating shaft (12), the extrusion rotating plate (8) is rotationally connected on the inner wall of the uniform feeding hopper (6), the connecting rotating shaft (12) is fixed on the inner wall of the extrusion rotating plate (8), the driving gear (10) is fixedly sleeved on the surface of the stirring long shaft (5), and the driven gear (11) is meshedly connected on the driving gear (10).

2. The modified asphalt premixing device with automatic feeding function according to claim 1, characterized in that: The driven gear (11) is fixedly sleeved on the surface of the connecting rotating shaft (12), and the lower portion of the extrusion rotating plate (8) is attached to the inner wall of the uniform feeding hopper (6).

3. The modified asphalt premix device with automatic feeding function according to claim 2, characterized in that: The rear end of the supporting bottom plate (1) is provided with a lifting frame (2), and the upper end of the connecting rotating shaft (12) is rotationally connected to the top frame of the lifting frame (2).

4. The modified asphalt premix device with automatic feeding function according to claim 3, characterized in that: The top frame of the lifting frame (2) is fixedly embedded with a rotating bearing (13), and the upper end of the connecting rotating shaft (12) extends into the rotating bearing (13).

5. The modified asphalt premix device with automatic feeding function according to claim 4, characterized in that: The inner bottom wall of the uniform feeding hopper (6) is provided with a mounting opening (9), and the stirring long shaft (5) is fixedly sleeved at the mounting opening (9) of the uniform feeding hopper (6).

6. The modified asphalt premix device with automatic feeding function according to claim 5, characterized in that: One side of the supporting bottom plate (1) is provided with an asphalt modified material box (14), and the feeding end of the screw conveyor (15) is arranged in the asphalt modified material box (14).

7. The modified asphalt premix device with automatic feeding function according to claim 5, characterized in that: The inside of the mixing cylinder (4) below the uniform feeding hopper (6) is provided with a mixing working chamber, and the inside of the mixing cylinder (4) above the uniform feeding hopper (6) is provided with a filtering working chamber.

8. The modified asphalt premix device with automatic feeding function according to claim 5, characterized in that: The lower portion of the top frame of the lifting frame (2) is fixedly connected with a stirring motor (3), and the upper end of the stirring long shaft (5) is fixedly connected to the output shaft of the stirring motor (3).

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