Asphalt milling material screening device
By designing an asphalt milling material screening device, the milling material is separated into coarse and fine materials, which solves the problems of multiple aggregate lumps affecting product quality and high energy consumption, achieves efficient screening and crushing, and promotes resource recycling.
Patent Information
- Application Number
- CN202423276873.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing technologies, the presence of multiple aggregate lumps in asphalt milling materials affects product quality and results in low crushing efficiency and high energy consumption.
An asphalt milling material screening device was designed, including a frame, a belt conveyor and a vibrating screen. The milling material is separated into coarse and fine materials through screening, which are used for the production of different types of asphalt concrete. The multi-aggregate lumps after screening are then crushed.
It improves screening and crushing efficiency, saves energy, and realizes efficient resource reuse of milled materials.
Smart Images
Figure CN223698433U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to material screening technical field, concretely relates to a pitch milling material screening device. BACKGROUND
[0002] Pitch milling material is the material produced by breaking and scraping off the damaged pitch concrete layer by pitch pavement milling machine, and the milling material is the scraped waste pitch concrete material. After the pitch milling material is broken and screened, it can be reused for producing pitch concrete by cold recycling or hot recycling technology, so as to realize the resource recycling of the pitch milling material. In the process of stripping the waste pitch concrete pavement by the milling machine, the material is initially broken, and the milling material contains single aggregate particle material (i.e. single aggregate particle wrapped with aged pitch on the surface) and multi-aggregate block. The milling material cannot be directly used for producing pitch concrete, and the multi-aggregate block affects the product quality; if the milling material is directly broken by a crusher, the breaking efficiency is low, and the repeated breaking energy consumption is large.
[0003] In order to solve the above problems, the utility model designs a pitch milling material screening device, which preliminarily screens the milling material, directly uses the qualified material for resource recycling, and breaks the multi-aggregate block material by a crusher, so as to improve the screening and breaking efficiency and save energy consumption. SUMMARY
[0004] The utility model provides a pitch milling material screening device, which comprises a frame body 1, a belt conveying device 2, a vibrating screen 3 and a feeding hopper 4.
[0005] The belt conveying device 2 is obliquely arranged on the frame body 1 and comprises a belt 2-1, a motor 2-2, a driving roller 2-3, a driven roller 2-4, a supporting roller 2-5 and a conveying frame 2-6.
[0006] The vibrating screen 3 is in the shape of a box, has a screen mesh at the bottom and screen walls around, the width between the left and right side walls at the lower end of the screen mesh gradually decreases, a horn-shaped discharge port with a large upper part and a small lower part is formed, and the discharge is facilitated.
[0007] The vibrating screen 3 is obliquely arranged above the lower half of the belt conveying device 2 and is supported by four supporting parts 3-1; the lower supporting column 3-11 of the supporting part 3-1 is fixed to the outer side wall of the conveying frame 2-6, a convex column body is arranged at the top of the supporting column 3-11; the uppermost supporting plate 3-12 of the supporting part 3-1 is fixed to the outer side wall of the vibrating screen 3, and the lower plate surface of the supporting plate 3-12 is also provided with a convex column body; the supporting spring 3-13 is vertically sleeved on the two convex column bodies.
[0008] Rubber baffle 3-2 is arranged on two side edges and lower bottom edge of the bottom of the vibrating screen 3, the rubber baffles on the two side edges extend obliquely to the center line direction of the belt 2-1, the rubber baffle on the lower bottom edge extends obliquely to the upper end of the belt 2-1, and the material falling from the screen is guided to the middle part of the belt 2-1, so that the material is prevented from being scattered to the outside of the belt 2-1.
[0009] A vibrator 3-3 is arranged at the middle part of each of the two outer side walls of the vibrating screen 3.
[0010] The feeding hopper 4 is arranged above the upper end of the vibrating screen 3.
[0011] The screen on the vibrating screen 3 can be arranged in 1-3 layers, and the included angle between the screen and the horizontal plane is 14-20 degrees.
[0012] Tires are arranged at the bottom of the frame body 1, and a traction component 1-1 is arranged on the frame body 1, so that the equipment is convenient to move.
[0013] The asphalt milling material screening device provided by the utility model can screen the milling material into coarse material and fine material, is respectively used for configuring production of different models of asphalt concrete, and is applied to different parts of roads. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a side structure schematic view of the utility model.
[0015] Figure 2 It is a front structure schematic view of the utility model.
[0016] In the figure: 1 frame body, 1-1 traction component; 2 belt conveying device, 2-1 belt, 2-2 motor, 2-3 driving roller, 2-4 driven roller, 2-5 supporting roller, 2-6 conveying frame; 3 vibrating screen, 3-1 supporting component, 3-11 supporting column, 3-12 supporting plate, 3-13 supporting spring, 3-2 rubber baffle, 3-3 vibrator; 4 feeding hopper. DETAILED DESCRIPTION
[0017] As shown in Figure 1 , 2 The utility model provides a kind of asphalt milling material screening device, including frame body 1, belt conveying device 2, vibrating screen 3 and feeding hopper 4.
[0018] Belt conveying device 2 is obliquely arranged on frame body 1, including belt 2-1, motor 2-2, driving roller 2-3, driven roller 2-4, supporting roller 2-5 and conveying frame 2-6.
[0019] The vibrating screen 3 is box-shaped, with a screen mesh at the bottom and screen walls around the periphery. The width between the left and right side walls at the lower end of the screen mesh gradually decreases, forming a horn-shaped discharge opening that is large at the top and small at the bottom, facilitating discharge.
[0020] The vibrating screen 3 is obliquely arranged above the lower half of the belt conveyor 2 and is supported by four support members 3-1. The lower support columns 3-11 of the support members 3-1 are fixed to the outer side walls of the conveying frame 2-6, and convex column bodies are arranged at the top of the support columns 3-11. The uppermost support plates 3-12 of the support members 3-1 are fixed to the outer side walls of the vibrating screen 3, and the lower plate surfaces of the support plates 3-12 are also provided with convex column bodies. The support springs 3-13 are vertically sleeved on the two convex column bodies.
[0021] Rubber baffle plates 3-2 are arranged on the two side edges and the lower bottom edge of the vibrating screen 3. The rubber baffle plates on the two side edges extend obliquely towards the center line of the belt 2-1, and the rubber baffle plate on the lower bottom edge extends obliquely towards the upper end of the belt 2-1. The rubber baffle plates guide the material that falls through the screen mesh to the middle of the belt 2-1, preventing the material from spilling outside the belt 2-1.
[0022] A vibrator 3-3 is arranged on each of the two outer side walls of the vibrating screen 3.
[0023] The feeding hopper 4 is arranged above the upper end of the vibrating screen 3.
[0024] The screen mesh on the vibrating screen 3 can be arranged in 1-3 layers, and the angle between the screen mesh and the horizontal plane is 14°-20°.
[0025] Tires are arranged at the bottom of the frame body 1, and a traction member 1-1 is arranged on the frame body 1, facilitating the movement of the device.
[0026] In use, the vibrator 3-3 is started to drive the vibrating screen 3 to reciprocate up and down, and the motor 2-2 is started to drive the driving roller 2-3 to rotate through the transmission belt, thereby driving the belt 2-1 to move from bottom to top. The asphalt milling material is poured into the feeding hopper 4 by a forklift, and the milling material falls from the discharge opening of the feeding hopper 4 onto the upper part of the screen mesh of the vibrating screen 3 for screening. In this embodiment, two layers of screen meshes are arranged on the vibrating screen 3, and the optimal angle between the screen meshes and the horizontal plane is 17°. The large-particle material discharged from the discharge opening at the lower end of the first layer of screen meshes is returned to the crusher for further crushing. The coarse material discharged from the discharge opening at the lower end of the second layer of screen meshes is transported to the storage area for standby use. The fine material that leaks through the screen mesh of the second layer of screen meshes is guided by the rubber baffle plate to fall onto the middle of the belt 2-1 and is conveyed to the storage area for standby use along with the belt 2-1.
[0027] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.
Claims
1. An asphalt millings material screening apparatus, characterized by: It comprises a frame (1), a belt conveying device (2), a vibrating screen (3) and a feeding hopper (4). The belt conveying device (2) is obliquely arranged on the frame (1) and comprises a belt (2-1), a motor (2-2), a driving roller (2-3), a driven roller (2-4), a supporting roller (2-5) and a conveying frame (2-6). The vibrating screen (3) is box-shaped, with a screen mesh at the bottom and screen walls around the periphery; the width between the left and right side walls at the lower end of the screen mesh gradually decreases, forming a horn-shaped discharge port that is large at the top and small at the bottom, facilitating discharge. The vibrating screen (3) is obliquely arranged above the lower half of the belt conveying device (2) and is supported by four supporting components (3-1); the lower supporting columns (3-11) of the supporting components (3-1) are fixed to the outer side walls of the conveying frame (2-6), and convex column bodies are arranged on the top of the supporting columns (3-11); the uppermost supporting plates (3-12) of the supporting components (3-1) are fixed to the outer side walls of the vibrating screen (3), and convex column bodies are also arranged on the lower plate surfaces of the supporting plates (3-12); supporting springs (3-13) are vertically sleeved on the two convex column bodies. Rubber baffle plates (3-2) are arranged on the two side edges and the lower bottom edge of the vibrating screen (3); the rubber baffle plates on the two side edges extend obliquely towards the center line of the belt (2-1), and the rubber baffle plate on the lower bottom edge extends obliquely towards the upper end of the belt (2-1), guiding the material falling from the screen mesh to the middle part of the belt (2-1) and preventing the material from spilling outside the belt (2-1); A vibrator (3-3) is arranged on each of the two outer side walls of the vibrating screen (3). The feeding hopper (4) is arranged above the upper end of the vibrating screen (3).
2. An asphalt millings material screening device according to claim 1, wherein: The screen mesh on the vibrating screen (3) is arranged in 1-3 layers, and the included angle between the screen mesh and the horizontal plane is 14-20°.
3. An asphalt millings material screening device according to claim 2, wherein: The screen mesh on the vibrating screen (3) is arranged in 2 layers, and the included angle between the screen mesh and the horizontal plane is 17°.
4. An asphalt millings material screening device according to claim 3, wherein: Tires are arranged on the bottom of the frame (1), and a traction component (1-1) is arranged on the frame (1).