Novel asphalt milling material crushing and screening production line

Abstract

The utility model relates to the technical field of asphalt pavement maintenance, and provides a novel asphalt milling material crushing and screening production line which comprises a batching machine, a crusher, a vibrating screen and a material sliding frame, the batching machine is connected with the vibrating screen through a feeding belt conveyor, and the vibrating screen is further connected with a discharging belt conveyor and a material returning belt conveyor. The lower end of the material sliding frame is arranged above the input end of the material returning belt conveyor, the end, away from the vibrating screen, of the material returning belt conveyor is connected with the input end of the crusher, and the output end of the crusher is located above the feeding belt conveyor and connected with the feeding belt conveyor. By arranging the material sliding frame, milling and planing materials with large particle sizes can enter the material returning belt conveyor through the material sliding frame and then enter the feeding belt conveyor after being crushed by the crusher, and the number of asphalt milling and planing material sieves entering the crusher is reduced; after the asphalt milling materials are crushed by the crusher, the crushed asphalt milling materials are fed into the vibrating screen again by the feeding belt conveyor to be screened again, so that all the asphalt milling materials are crushed into proper particle sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement maintenance, in particular to a novel asphalt milling material crushing and screening production line. Background Art

[0002] After long-term use, asphalt pavement will have local defects such as rutting, cracking, pockmarking, and potholes, which seriously affect the performance and service life of the asphalt pavement. Currently, the most commonly used maintenance process for asphalt pavements is milling and paving. For the milling of asphalt pavements on highways, large milling machines with automatic depth control should be used. The milled waste is directly transported to the transport vehicle by the milling machine conveyor belt, and then transported to the hot regeneration plant for recycling together with the hot asphalt regeneration raw materials.

[0003] The asphalt waste milled out from the asphalt pavement is of different sizes and shapes, and needs to be crushed and screened; the asphalt waste that is still unqualified after screening needs to be crushed again; the amount of unqualified asphalt waste after screening is small, and it is often accumulated to a certain amount before being crushed and processed in a centralized manner; the asphalt crushing mechanism cannot crush the unqualified asphalt waste in time.

[0004] Therefore, in view of the above problems, a new asphalt milling material crushing and screening production line is proposed to solve the above problems. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model develops a novel asphalt milling material crushing and screening production line. The utility model reduces the number of asphalt milling material screens entering the crusher and ensures that all asphalt milling materials are crushed into appropriate particle sizes.

[0006] The technical solution of the utility model to solve the technical problem is: the utility model provides a new type of asphalt milling material crushing and screening production line, including a batching machine, a crusher, a vibrating screen and a chute rack, the batching machine is connected to the vibrating screen through a feeding belt conveyor, the vibrating screen is also connected to a discharging belt conveyor and a return belt conveyor, the lower end of the chute rack is arranged above the input end of the return belt conveyor, the end of the return belt conveyor away from the vibrating screen is connected to the input end of the crusher, the output end of the crusher is located above the feeding belt conveyor, and is connected to the feeding belt conveyor.

[0007] As an optimization, an overflow waste port is also provided on the vibrating screen, and the overflow waste port of the vibrating screen is connected to the input end of the return belt conveyor, and the end of the return belt conveyor close to the crusher is higher than the end close to the vibrating screen.

[0008] As an optimization, a screen is installed on the batching machine, a milling material conveyor belt conveyor is arranged below the screen, the output end of the milling material conveyor belt conveyor is connected to the discharge port 1 of the batching machine, and the discharge port 1 is arranged above the input end of the feeding belt conveyor.

[0009] As an optimization, the output end of the feeding belt conveyor is located above the feeding port of the vibrating screen, and the output end of the feeding belt conveyor is higher than the input end of the feeding belt conveyor.

[0010] As an optimization, the vibrating screen is a four-layer vibrating screen. The vibrating screen is provided with three discharge ports with different particle size ranges. Each discharge port is connected to a discharge belt conveyor, and the discharge belt conveyor is located below the discharge port.

[0011] As an optimization, the crusher is a hammer crusher.

[0012] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0013] By setting up a chute, the milling material with larger particle size can enter the return conveyor through the chute, and then enter the feeding conveyor after being crushed by the crusher; by setting up a batching machine, the asphalt milling material with appropriate particle size can be screened out and enter the feeding conveyor, thereby reducing the number of asphalt milling material screens entering the crusher; after crushing in the crusher, the feeding conveyor will send the crushed asphalt milling material back to the vibrating screen for re-screening, ensuring that all the asphalt milling materials are crushed into appropriate particle sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is a left view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 For this utility model Figure 1 Enlarged view of point A in .

[0019] In the figure, 1. batching machine; 2. crusher; 3. return material conveyor; 4. loading material conveyor; 5. feed port 1; 6. vibrating screen; 7. discharge material conveyor; 8. chute; 9. screen; 10. milling material conveyor belt conveyor; 11. discharge port 1; 12. discharge port 2; 13. overflow waste port. DETAILED DESCRIPTION

[0020] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] like Figures 1 to 4 As shown, a new type of asphalt milling material crushing and screening production line includes a batching machine 1, a crusher 2, a vibrating screen 6 and a chute 8. The batching machine 1 is connected to the vibrating screen 6 through a feeding belt conveyor 4. The vibrating screen 6 is also connected to a discharging belt conveyor 7 and a return belt conveyor 3. The lower end of the chute 8 is arranged above the input end of the return belt conveyor 3. The end of the return belt conveyor 3 away from the vibrating screen 6 is connected to the input end of the crusher 2. The output end of the crusher 2 is located above the feeding belt conveyor 4 and is connected to the feeding belt conveyor 4. The electric rollers of the return belt conveyor 3 and the feeding belt conveyor 4 are both external motor reducers to ensure easy maintenance and installation, which will not be described in detail here.

[0022] By setting up the chute 8, the milling material with larger particle size can enter the return belt conveyor 3 through the chute 8, and then enter the feeding belt conveyor 4 after being crushed by the crusher 2; by setting up the batching machine 1, the asphalt milling material with appropriate particle size is screened out and enters the feeding belt conveyor 4, thereby reducing the number of asphalt milling material screens entering the crusher 2; after crushing by the crusher 2, the feeding belt conveyor 4 sends the crushed asphalt milling material back to the vibrating screen 6 for re-screening, thereby ensuring that all the asphalt milling materials are crushed into appropriate particle sizes.

[0023] In this embodiment, the vibrating screen 6 is further provided with an overflow waste port 13, which is connected to the input end of the return belt conveyor 3, and the end of the return belt conveyor 3 close to the crusher 2 is higher than the end close to the vibrating screen 6. Milling materials with larger particle sizes enter the return belt conveyor 3 through the overflow waste port 13, and the return belt conveyor 3 transports the milling materials with larger particle sizes to the crusher 2, and returns to the feeding belt conveyor 4 after being crushed by the crusher 2, and then re-enters the vibrating screen 6 for screening.

[0024] In this embodiment, a screen 9 is installed on the batching machine 1, and a milling material conveyor belt 10 is arranged below the screen 9. The output end of the milling material conveyor belt 10 is connected to a discharge port 11 of the batching machine 1, and the discharge port 11 is arranged above the input end of the feeding belt conveyor 4.

[0025] The output end of the feeding belt conveyor 4 is located above the feeding port 5 of the vibrating screen 6, and the output end of the feeding belt conveyor 4 is higher than the input end of the feeding belt conveyor 4.

[0026] The vibrating screen 6 is a four-layer vibrating screen, which can better screen the milling material. The vibrating screen 6 is provided with three discharge ports 12 with different particle size ranges, each of which is connected to a discharge belt conveyor 7, and the discharge belt conveyor 7 is located below the discharge port 12. The three discharge belt conveyors 7 respectively transport the milling materials in different particle size ranges after screening by the vibrating screen to the corresponding storage area.

[0027] Crusher 2 is a hammer crusher, which crushes the milling material with a larger particle size after screening, and then conveys the crushed milling material to the feeding belt conveyor.

[0028] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A new type of asphalt milling material crushing and screening production line, characterized by: The invention comprises a batching machine (1), a crusher (2), a vibrating screen (6) and a material slide rack (8), wherein the batching machine (1) is connected to the vibrating screen (6) via a feeding belt conveyor (4), the vibrating screen (6) is also connected to a discharging belt conveyor (7) and a return belt conveyor (3), the lower end of the material slide rack (8) is arranged above the input end of the return belt conveyor (3), the end of the return belt conveyor (3) away from the vibrating screen (6) is connected to the input end of the crusher (2), and the output end of the crusher (2) is located above the feeding belt conveyor (4) and is connected to the feeding belt conveyor (4).

2. The new asphalt milling material crushing and screening production line according to claim 1 is characterized by: The vibrating screen (6) is also provided with a waste overflow port (13), and the waste overflow port (13) of the vibrating screen (6) is connected to the input end of the return belt conveyor (3), and the end of the return belt conveyor (3) close to the crusher (2) is higher than the end close to the vibrating screen (6).

3. The new asphalt milling material crushing and screening production line according to claim 2 is characterized by: A screen (9) is installed on the machine (1), a milling material conveyor belt machine (10) is arranged below the screen (9), the output end of the milling material conveyor belt machine (10) is connected to the first discharge port (11) of the batching machine (1), and the first discharge port (11) is arranged above the input end of the feeding belt machine (4).

4. The new asphalt milling material crushing and screening production line according to claim 3 is characterized in that: The output end of the belt conveyor (4) is located above the first feed port (5) of the vibrating screen (6), and the output end of the feeding belt conveyor (4) is higher than the input end of the feeding belt conveyor (4).

5. The new asphalt milling material crushing and screening production line according to claim 1 is characterized by: The vibrating screen (6) is a four-layer vibrating screen. The vibrating screen (6) is provided with three discharge ports (12) with different particle size ranges. Each discharge port (12) is connected to a discharge belt conveyor (7). The discharge belt conveyor (7) is located below the discharge port (12).

6. The new asphalt milling material crushing and screening production line according to claim 1 is characterized by: The crusher (2) is a hammer crusher.

Images