Modified asphalt raw material crushing and conveying device

Abstract

The utility model relates to the technical field of asphalt production, in particular to a modified asphalt raw material crushing and conveying device which comprises a first-stage crusher, a second-stage crusher and a screening frame, a first conveying pipe is arranged between the first-stage crusher and the second-stage crusher, and a second conveying pipe is arranged between the second-stage crusher and the screening frame. A material uniformizing mechanism is arranged at a feeding port of the secondary crusher and comprises a supporting frame, a feeding hopper, a supporting spring and a vibrator, a material baffle is fixedly connected to the inner side of a screening frame, and a screening barrel is arranged on the inner side of the material baffle; the multi-stage crusher fully crushes raw materials, and meanwhile, the refining mechanism uniformly feeds the raw materials subjected to primary crushing into the secondary crusher, so that the raw materials are prevented from being blocked, the crushing efficiency of the raw materials is improved, the crushing uniformity of the raw materials is improved, and the crushed raw materials are screened in cooperation with the screening cylinder, so that the crushing efficiency of the raw materials is improved. The granularity of the crushed raw materials is graded, so that the particle uniformity is improved, and the production quality of asphalt is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production, in particular to a modified asphalt raw material crushing and conveying device. Background Art

[0002] Modified asphalt refers to an asphalt binder made by adding admixtures (modifiers) such as rubber, resin, high-molecular polymers, ground rubber powder, or other fillers, or by mildly oxidizing the asphalt to improve the performance of asphalt or asphalt mixtures. SBS modified asphalt is a polymer-modified asphalt. It uses base asphalt as raw material, with a certain proportion of SBS modifier added. The SBS is evenly dispersed in the asphalt through shearing and stirring. A specific proportion of a proprietary stabilizer is also added to form an SBS blend, leveraging the excellent physical properties of SBS to modify the asphalt. Raw material crushing and transportation are key steps in the production of modified asphalt.

[0003] Traditional modified asphalt raw material crushing and conveying equipment usually adopts a single crushing mechanism, which has low crushing efficiency and insufficient crushing. It is also prone to blockage and unevenness during the conveying process, affecting production efficiency and product quality.

[0004] Therefore, it is necessary to invent a modified asphalt raw material crushing and conveying device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a modified asphalt raw material crushing and conveying device to solve the problems of low crushing efficiency, insufficient crushing, and easy blockage and unevenness during transportation, which affect production efficiency and product quality.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a modified asphalt raw material crushing and conveying device, comprising a primary crusher, a secondary crusher and a screening frame, a first feed pipe is arranged between the primary crusher and the secondary crusher, a second feed pipe is arranged between the secondary crusher and the screening frame, a material leveling mechanism is arranged at the feed port of the secondary crusher, the material leveling mechanism comprises a support frame, a feed hopper, a support spring and a vibrator, a material baffle is fixedly connected to the inner side of the screening frame, a screening drum is arranged on the inner side of the material baffle, a fine mesh and a coarse mesh are arranged on the left and right sides of the surface of the screening drum respectively.

[0007] By adopting the above technical solution, the primary crusher crushes the raw materials into small pieces, and then the secondary crusher crushes the small pieces of raw materials again to a usable state. In addition, additional crushers can be added according to actual usage conditions to fully crush the raw materials, thereby improving the crushing quality and efficiency of the raw materials. The crushed raw materials are then screened through a screening drum, and the particle size of the crushed raw materials is graded to improve the uniformity of the particles, thereby effectively improving the production quality of asphalt. Among them, the first feed pipe and the second feed pipe are both spiral feed pipes, which adjust the conveying speed in real time according to the amount of crushed raw materials, thereby improving the stability of raw material transportation, and the raw materials after primary crushing are evenly delivered to the interior of the secondary crusher through a material leveling mechanism, thereby further improving the crushing efficiency and uniformity of the raw materials.

[0008] Optionally, the rear end of the support frame is fixedly connected to the surface of the secondary crusher, and the feed hopper is arranged on the upper side of the support frame.

[0009] By adopting the above technical solution, the first conveying pipe conveys the raw materials crushed by the primary crusher to the inside of the feed hopper, and then conveys it to the inside of the secondary crusher through the feed hopper.

[0010] Optionally, the upper surface of the support frame and the lower surface of the feed hopper are fixedly connected with multiple groups of clamping blocks, and the upper and lower ends of the support spring are fixedly connected to the upper and lower groups of clamping blocks respectively.

[0011] By adopting the above technical solution, the support spring is used to support the feed hopper.

[0012] Optionally, a feed hole is provided on the upper surface of the feed hopper, and the vibrator is fixedly mounted on the lower surface of the feed hopper.

[0013] By adopting the above technical solution, the vibrator is used to vibrate the feed hopper so that the raw materials inside the feed hopper are evenly laid inside the feed hopper, thereby achieving uniform feeding, avoiding blockage inside the secondary crusher, and effectively improving the crushing quality and crushing efficiency.

[0014] Optionally, the left and right sides of the screening frame are fixedly connected with connecting frames, and the left and right ends of the screening drum are rotatably connected to the connecting frames on the left and right sides respectively.

[0015] By adopting the above technical solution, the left and right sides of the screening frame are fixedly connected with connecting frames, the two ends of the screening drum are rotatably connected to the connecting frames on the left and right sides, and a motor is installed on the surface of the left connecting frame. The motor drives the screening drum to rotate, and the crushed small particle raw materials are graded to improve the uniformity of the particles.

[0016] Optionally, a first discharge hole is opened on the surface of the baffle plate near the left side, and the fine separation net is arranged on the upper side of the first discharge hole. A second discharge hole is opened on the surface of the baffle plate near the right side, and the coarse separation net is arranged on the upper side of the second discharge hole.

[0017] By adopting the above technical solution, the fine separation network separates smaller particles from the granules, and the coarse separation network separates larger particles from the granules.

[0018] Optionally, a first material collection box is fixedly connected to the lower side of the first material discharge hole, and a second material collection box is fixedly connected to the lower side of the second material discharge hole.

[0019] By adopting the above technical solution, the first aggregate box collects small particles, and the second aggregate box collects larger particles.

[0020] Optionally, a third aggregate box is fixedly connected to the right end of the screening frame.

[0021] By adopting the above technical solution, the large-particle raw materials separated by the screening drum will fall into the third aggregate box, and then the large-particle raw materials will be re-sent to the secondary crusher for further crushing.

[0022] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0023] 1. The utility model realizes full crushing of raw materials through multi-stage crushers, thereby improving the crushing quality and efficiency of raw materials. At the same time, the material leveling mechanism evenly delivers the raw materials after primary crushing to the interior of the secondary crusher, thereby avoiding blockage of raw materials, further improving the crushing efficiency of raw materials, and improving the uniformity of raw material crushing. In addition, the material is conveyed through a spiral conveying pipe, and the conveying speed can be adjusted in real time according to the amount of crushed raw materials, thereby further avoiding blockage during the conveying process and improving the stability of raw material conveying. This solves the problems of low crushing efficiency, insufficient crushing, and easy blockage and unevenness during conveying in the prior art, which affect production efficiency and product quality.

[0024] 2. The utility model screens the crushed raw materials by cooperating with the screening drum, grades the particle size of the crushed raw materials, improves the particle uniformity, and thus effectively improves the production quality of asphalt. It can also recycle and crush unqualified asphalt to reduce raw material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the secondary crusher of the present utility model;

[0027] Figure 3This is a schematic structural diagram of the material leveling mechanism of the present utility model;

[0028] Figure 4 This is a schematic diagram of the screening drum structure of the present utility model;

[0029] Figure 5 This is a structural schematic diagram of the baffle plate of the present utility model.

[0030] Description of reference numerals:

[0031] 1. Primary crusher; 11. First feed pipe; 2. Secondary crusher; 21. Support frame; 22. Feed hopper; 23. Feed hole; 24. Clamping block; 25. Support spring; 26. Vibrator; 27. Second feed pipe; 3. Screening frame; 31. Baffle plate; 32. First discharge hole; 33. Second discharge hole; 34. First aggregate box; 35. Second aggregate box; 36. Third aggregate box; 37. Screening drum; 38. Fine screen; 39. Coarse screen. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The utility model provides Figures 1 to 3 The modified asphalt raw material crushing and conveying device shown includes a primary crusher 1, a secondary crusher 2 and a screening frame 3. A first feed pipe 11 is provided between the primary crusher 1 and the secondary crusher 2, and a second feed pipe 27 is provided between the secondary crusher 2 and the screening frame 3. A material leveling mechanism is provided at the feed port of the secondary crusher 2. The material leveling mechanism includes a support frame 21, a feed hopper 22, a support spring 25 and a vibrator 26. The rear end of the support frame 21 is fixedly connected to the surface of the secondary crusher 2, and the feed hopper 22 is provided on the upper side of the support frame 21. The upper surface of the support frame 21 and the lower surface of the feed hopper 22 are fixedly connected with multiple groups of clamping blocks 24. The upper and lower ends of the support spring 25 are respectively fixedly connected to the upper and lower groups of clamping blocks 24. A feed hole 23 is provided on the upper surface of the feed hopper 22, and the vibrator 26 is fixedly installed on the lower surface of the feed hopper 22.

[0034] Among them, the first-level crusher 1 crushes the raw materials into small pieces, and then the small pieces of raw materials are crushed again to a usable state through the second-level crusher 2. Crusher can be added according to actual usage to fully crush the raw materials and improve the crushing quality and efficiency of the raw materials. The first feed pipe 11 and the second feed pipe 27 are both spiral feed pipes, and monitoring modules are set inside the first-level crusher 1 and the second-level crusher 2 to detect the crushed amount of raw materials. Then, the conveying speed of the feed pipe is adjusted by the control system to avoid blockage during the conveying process, while improving the stability of raw material transportation. The raw materials crushed by the first-level crusher 1 are evenly delivered to the inside of the second-level crusher 2 through the material leveling mechanism, further improving the crushing efficiency and uniformity of the raw materials.

[0035] See Figure 1 、 Figure 4 and Figure 5 A baffle plate 31 is fixedly connected to the inner side of the screening frame 3, and a screening drum 37 is provided on the inner side of the baffle plate 31. A fine mesh 38 and a coarse mesh 39 are respectively provided on the left and right sides of the surface of the screening drum 37. The left and right sides of the screening frame 3 are fixedly connected to a connecting frame, and the left and right ends of the screening drum 37 are rotatably connected to the connecting frames on the left and right sides respectively. A first discharge hole 32 is provided on the surface of the baffle plate 31 near the left side, and the fine mesh 38 is provided on the upper side of the first discharge hole 32. A second discharge hole 33 is provided on the surface of the baffle plate 31 near the right side, and the coarse mesh 39 is provided on the upper side of the second discharge hole 33. The lower side of the first discharge hole 32 is fixedly connected to the first aggregate box 34, the lower side of the second discharge hole 33 is fixedly connected to the second aggregate box 35, and the right end of the screening frame 3 is fixedly connected to the third aggregate box 36.

[0036] In addition, the left and right sides of the screening frame 3 are fixedly connected with connecting frames, and the two ends of the screening drum 37 are rotatably connected to the connecting frames on the left and right sides. A motor is installed on the surface of the left connecting frame. The motor drives the screening drum 37 to rotate, and the crushed small particle raw materials are graded to improve the uniformity of the particles. The small particle raw materials after screening fall into the first aggregate box 34 through the first discharge hole 32, and the larger particles after screening fall into the second aggregate box 35 through the second discharge hole 33, and are transported to the storage bin for storage through a conveying pipe. Then the large particle raw materials separated by the screening drum 37 will fall into the third aggregate box 36, and the large particle raw materials will be re-delivered to the secondary crusher 2 for crushing again.

[0037] Specifically, during use, the raw materials are fed into the first crusher 1, and then the first feeding pipe 11 feeds the raw materials after the first crushing into the feed hopper 22. At the same time, the vibrator 26 cooperates with the support spring 25 to drive the feed hopper 22 to vibrate, breaking up the raw materials inside the feed hopper 22 so that they are evenly laid inside the feed hopper 22. Then, the feed hopper 22 feeds the raw materials evenly into the second crusher 2, thereby improving the crushing efficiency and crushing uniformity of the raw materials. Then, the raw materials after the second crushing are transported to the second crusher through the second feeding pipe 27. Inside the screening drum 37, the motor drives the screening drum 37 to rotate, screens the internal raw materials, and transports the raw materials to the right. At this time, the fine mesh 38 separates the smaller particles from the particles, the first aggregate box 34 collects the small particles, the coarse mesh 39 separates the larger particles from the particles, and the second aggregate box 35 collects the larger particles. Next, the large particles separated by the screening drum 37 will fall into the third aggregate box 36. After the screening is completed, the large particles will be sent back to the secondary crusher 2 for crushing again.

[0038] At the same time, an intelligent monitoring system is introduced into this device, which uses the monitoring module to intelligently monitor the crushing and conveying process, and uses sensors to provide real-time feedback on the working status to achieve optimal control of energy consumption.

[0039] The working principle of the present invention is as follows: the raw materials are fully crushed by a multi-stage crusher, and at the same time, the material leveling mechanism evenly delivers the raw materials after primary crushing to the interior of the secondary crusher 2, avoiding blockage of the raw materials, improving the crushing efficiency of the raw materials, and improving the uniformity of the raw material crushing. In addition, the screening drum 37 is used to screen the crushed raw materials, classify the particle size of the crushed raw materials, improve the particle uniformity, and thus effectively improve the production quality of asphalt.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention.

Claims

1. A modified asphalt raw material crushing and conveying device, comprising a primary crusher (1), a secondary crusher (2) and a screening frame (3), characterized in that: A first material delivery pipe (11) is provided between the primary crusher (1) and the secondary crusher (2), a second material delivery pipe (27) is provided between the secondary crusher (2) and the screening frame (3), a material leveling mechanism is provided at the feed port of the secondary crusher (2), the material leveling mechanism comprising a support frame (21), a feed hopper (22), a support spring (25) and a vibrator (26), a material baffle plate (31) is fixedly connected to the inner side of the screening frame (3), a screening drum (37) is provided on the inner side of the material baffle plate (31), and a fine separation net (38) and a coarse separation net (39) are provided on the left and right sides of the surface of the screening drum (37), respectively.

2. The modified asphalt raw material crushing and conveying device according to claim 1, characterized in that: The rear end of the support frame (21) is fixedly connected to the surface of the secondary crusher (2), and the feed hopper (22) is arranged on the upper side of the support frame (21).

3. The modified asphalt raw material crushing and conveying device according to claim 2, characterized in that: The upper surface of the support frame (21) and the lower surface of the feed hopper (22) are both fixedly connected to a plurality of groups of clamping blocks (24), and the upper and lower ends of the support spring (25) are respectively fixedly connected to the upper and lower groups of clamping blocks (24).

4. The modified asphalt raw material crushing and conveying device according to claim 1, characterized in that: A feed hole (23) is provided on the upper surface of the feed hopper (22), and the vibrator (26) is fixedly mounted on the lower surface of the feed hopper (22).

5. The modified asphalt raw material crushing and conveying device according to claim 1, characterized in that: The left and right sides of the screening frame (3) are fixedly connected to connecting frames, and the left and right ends of the screening drum (37) are rotatably connected to the connecting frames on the left and right sides, respectively.

6. The modified asphalt raw material crushing and conveying device according to claim 1, characterized in that: A first discharge hole (32) is provided on the surface of the baffle plate (31) near the left side, and the fine separation net (38) is arranged above the first discharge hole (32). A second discharge hole (33) is provided on the surface of the baffle plate (31) near the right side, and the coarse separation net (39) is arranged above the second discharge hole (33).

7. The modified asphalt raw material crushing and conveying device according to claim 6, characterized in that: A first material collection box (34) is fixedly connected to the lower side of the first material discharge hole (32), and a second material collection box (35) is fixedly connected to the lower side of the second material discharge hole (33).

8. The modified asphalt raw material crushing and conveying device according to claim 1, characterized in that: The right end of the screening frame (3) is fixedly connected to a third aggregate box (36).

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