Screen mesh and screen box suitable for screening asphalt reclaimed materials
By designing polyurethane mesh and screen protection strips, the problem of clogging of manganese steel screens was solved, enabling efficient screening of recycled asphalt, especially fine materials smaller than 5mm, thus improving screening efficiency and product quality.
Patent Information
- Application Number
- CN202520301468.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Ordinary manganese steel screens are poorly adapted to wet and sticky asphalt recycled materials, and are prone to clogging, resulting in low screening efficiency, small processing capacity, and frequent maintenance.
The system employs a polyurethane mesh and screen protection strip structure, combined with screen hooks and tensioning devices, to form a stable screen system. The polyurethane mesh is elastic and prevents clogging, while the screen edging prevents coarse material leakage.
It improves the screening efficiency of asphalt recycled materials, produces high-quality fine aggregates, reduces clogging, is suitable for screening fine materials below 5mm, and ensures screening stability.
Smart Images
Figure CN223847491U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vibrating screening technical field especially relates to a screen and screen box suitable for asphalt regenerative material screening. BACKGROUND
[0002] With the continuous improvement of highway construction in China, the focus of maintenance work gradually shifts to large-scale management. Most of the highways in China use asphalt materials, so when the asphalt pavement is maintained and repaired every year, a large amount of asphalt pavement regenerative material will be produced, with a quantity of hundreds of millions of tons. By recycling the asphalt and gravel in these materials, not only can resources be effectively saved, but also environmental burden can be reduced, which embodies the economic value and social benefits of modern environmental protection technology. The asphalt regenerative material needs to be crushed and screened before it can be reused. The regenerative material gradation usually needs to be classified into 10-20mm, 5-10mm, and less than 5mm. In particular, asphalt regenerative material below 5mm can be used for the regeneration of asphalt pavement surface, which has particularly high economic value.
[0003] Ordinary manganese steel screen mesh has poor adaptability to wet and sticky materials, is prone to screen mesh blockage, and thus causes low screening efficiency, small processing capacity, and frequent maintenance and repair problems. In particular, in the application of asphalt regenerative material screening, ordinary manganese steel screen mesh also frequently causes screen mesh blockage problems during use, which affects normal production and use of customers, and there is no better solution on the market, which is also the technical bottleneck of asphalt regenerative material screening. SUMMARY
[0004] The utility model discloses a screen and screen box suitable for asphalt regenerative material screening, which mainly solves the problem of ordinary manganese steel screen mesh having poor adaptability to wet and sticky materials, being prone to screen mesh blockage, and thus causing low screening efficiency, small processing capacity, and frequent maintenance and repair problems.
[0005] To achieve the purpose, the technical scheme of the utility model is as follows:
[0006] In a first aspect, the utility model provides a screen mesh suitable for asphalt regenerative material screening, which comprises a screen mesh body, the screen mesh body comprises two screen mesh hooks, a plurality of screen mesh protection strips, two screen mesh edges, and a polyurethane mesh, the two screen mesh hooks are connected to the head and tail sides of the polyurethane mesh respectively, the two screen mesh edges are connected to the left and right sides of the polyurethane mesh respectively, the plurality of screen mesh protection strips are arranged perpendicularly to the long side direction of the polyurethane mesh and are spaced apart from each other, and the screen mesh protection strips are fixedly connected to the mesh surface of the polyurethane mesh.
[0007] In one embodiment, the screen edge wrapping includes an edge wrapping portion for wrapping the polyurethane screen, and an arc-shaped pointed structure extending outwardly away from the polyurethane screen, or an extended widened edge wrapping portion, or a widened structure of the screen protection strip, or a combination of two or more of the above.
[0008] In one embodiment, the polyurethane screen comprises a polyurethane material, and is made of polyurethane screen wires with reinforced cores or pure polyurethane screen wires, or a combination of both.
[0009] In one embodiment, the screen protection strip is fixed to the position where the polyurethane screen contacts the screen box support, or is fixed to the screen wire at the contact surface of the polyurethane screen and the screen box support, and the screen protection strip is a polyurethane strip.
[0010] The advantages or beneficial effects of the above technical solutions at least include:
[0011] 1. The screen provided by the present application is suitable for screening asphalt regenerative materials, and can meet the screening requirements of complex and diverse fine materials.
[0012] 2. The screen edge wrapping can effectively prevent coarse materials from leaking through the gap between the screen edges.
[0013] 3. The polyurethane screen can slightly deform when vibrating due to the elasticity of polyurethane, which has good screening effect on viscous and difficult-to-screen materials such as asphalt regenerative materials, can produce high-quality asphalt fine aggregate, has high screening efficiency and is not easy to block the screen, and is particularly suitable for screening asphalt regenerative materials, especially fine materials below 5mm which are prone to block the screen.
[0014] In the second aspect, the present application provides a screen box suitable for screening asphalt regenerative materials, which comprises a plurality of screen bodies provided at an inclined angle, and the screen hook of the screen body is hooked on the box body at one end and fixed on the box body through the tensioning device at the other end.
[0015] The advantages or beneficial effects of the above technical solutions at least include: the cooperation of the screen hook of the screen body and the box body and the tensioning device can ensure the stability of the screen body fixed in the box body. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the general description given above, explain the principles of the present application. These drawings are provided to further provide a further understanding of the present application and are incorporated into and constitute a part of this specification.
[0017] Figure 1A schematic view of a screen according to an exemplary embodiment of the present application is shown.
[0018] Figure 2 A schematic view of a screen according to an exemplary embodiment of the present application is shown. Figure 1 A top view of a screen according to an exemplary embodiment of the present application is shown.
[0019] Figure 3 A schematic view of a screen according to an exemplary embodiment of the present application is shown.
[0020] Figure 4 A schematic view of a screen according to an exemplary embodiment of the present application is shown.
[0021] Explanation of reference signs:
[0022] 10, screen body;
[0023] 11, screen pull hook; 12, screen protection strip; 13, screen edge cover; 131, edge cover part; 132, arc-shaped sharp corner structure; 14, polyurethane net;
[0024] 20, box body. DETAILED DESCRIPTION
[0025] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, but rather these embodiments are provided in order to more thoroughly and completely understand the present application. It should be understood that the drawings and embodiments of the present application are for exemplary purposes only, and are not intended to limit the scope of protection of the present application.
[0026] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0027] The term "comprising" and variations thereof as used herein are open-ended, that is "including but not limited to". The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions will be given in the description below. It should be noted that the "first", "second", etc. concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.
[0028] It should be noted that the modification of "one" and "multiple" in the utility model is illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".
[0029] The names of the messages or information exchanged between the plurality of devices in the utility model embodiment are only for illustrative purposes, and are not used to limit the scope of the messages or information.
[0030] Referring to Figure 1 and Figure 2 , the embodiment of the utility model provides a screen suitable for asphalt recycling material screening, which comprises a screen body 10, the screen body 10 comprises two screen hooks 11, a plurality of screen protection strips 12, two screen edges 13 and a polyurethane net 14; two screen hooks 11 are connected to the head and tail sides of the polyurethane net 14 respectively, two screen edges 13 are connected to the left and right sides of the polyurethane net 14 respectively, a plurality of screen protection strips 12 are perpendicular to the long side direction of the polyurethane net 14 and are arranged at intervals, and the screen protection strip 12 is fixedly connected with the screen surface of the polyurethane net 14. Thus, the screen is formed.
[0031] By the setting of the polyurethane net 14, the above-mentioned structure can meet the complex and diverse micro-fine material screening requirements of asphalt recycling materials. Due to the elastic effect of polyurethane, it can deform slightly during vibration, has good screening effect on viscous and difficult-to-screen materials such as asphalt recycling materials, can produce high-quality asphalt fine aggregate, has high screening efficiency and is not easy to block the screen, is especially suitable for asphalt recycling material screening, especially for the screening of micro-fine materials below 5mm which is easy to block the screen. The screen hooks 11 arranged at the head and tail ends of the polyurethane net 14 can facilitate quick installation of the screen in the screen box, and the screen edges 13 arranged on the left and right sides of the polyurethane net 14 can effectively prevent coarse materials from leaking through the gap between the screen edges.
[0032] In one embodiment, referring to Figure 3 , the screen edge 13 comprises a wrapping part 131 for wrapping the polyurethane net 14 and an arc-shaped sharp corner structure 132 arranged on the wrapping part 131 and extending outward away from the polyurethane net 14, or a wrapping part 131 that extends and widens, or a widening structure of the screen protection strip 12, or a combination of two or more of the above structures. In actual use, the wrapping part 131 of the screen edge 13 can wrap the side edge of the polyurethane net 14, and in cooperation with the arc-shaped sharp corner structure 132, it can effectively prevent coarse materials from leaking through the gap between the screen edges. At the same time, in cooperation with the wrapping part 131 that extends and widens and the widening structure of the screen protection strip 12, it can also effectively prevent coarse materials from leaking through the gap between the screen edges.
[0033] In one embodiment, referring toFigure 1 and Figure 2 The polyurethane screen 14 is made of polyurethane screen wires with reinforced cores or pure polyurethane screen wires, or a combination of both.
[0034] In one embodiment, referring to Figure 2 , Figure 3 and Figure 4 The screen protection strip 12 is fixed to the position where the polyurethane screen 14 contacts the screen box support, or is fixed to the screen wire on the contact surface of the polyurethane screen 14 and the screen box support, and the screen protection strip 12 is a polyurethane strip. In actual use, the two ends of the screen protection strip 12 are fixed to the polyurethane screen 14 by fixing the screen protection strip 12 to the position where the polyurethane screen 14 contacts the screen box support. By fixing the screen protection strip 12 to the screen wire on the contact surface of the polyurethane screen 14 and the screen box support, the connection stability between the screen protection strip 12 and the polyurethane screen 14 can be improved. The above two fixing methods can be used alone or in combination.
[0035] Referring to Figure 4 The embodiment of the utility model further provides a screen box suitable for asphalt regeneration material screening, which comprises a plurality of screen meshes suitable for asphalt regeneration material screening arranged at an inclined angle, and the screen mesh pull hook 11 of the screen mesh body 10 is hooked on the box body 20 at one end and fixed on the box body 20 through a tensioning device at the other end. The tensioning device can be a tension spring with a hook or other mechanical structure with tensioning function. The screen mesh body 10 can be pulled tight under the elastic force of the tension spring. In actual use, the screen mesh body 10 is hooked on the box body 20 through the screen mesh pull hook 11 at an inclined angle, which is beneficial to the screening of the screen mesh body 10 and makes the screened objects move gradually to the direction of low screen height during the screening process, thereby realizing multi-layer screening. With the cooperation of the tensioning device, the installation stability of the screen mesh can be ensured.
[0036] In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element 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.
[0037] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the present application, and are not intended to limit the scope of the present application. For those skilled in the art, other changes or modifications can be made on the basis of the above application, and these changes or modifications are still within the scope of the present application.
Claims
1. A screen suitable for screening of asphalt recycling material, characterized in that, The screen body comprises two screen hooks, a plurality of screen protection strips, two screen edges and a polyurethane screen; the two screen hooks are respectively connected to the head and tail sides of the polyurethane screen, the two screen edges are respectively connected to the left and right sides of the polyurethane screen, the plurality of screen protection strips are arranged perpendicularly to the long side direction of the polyurethane screen and are spaced apart from each other, and the screen protection strips are fixedly connected to the screen surface of the polyurethane screen.
2. The screen suitable for screening of asphalt recycling material according to claim 1, characterized in that, The screen edge comprises an edge part for wrapping the polyurethane screen and an arc-shaped sharp corner structure arranged on the edge part and extending outward away from the polyurethane screen, or an extended and widened edge part, or a widened structure of the screen protection strip, or a combination of two or more of the above structures.
3. The screen suitable for screening of asphalt recycling material according to claim 1, characterized in that, The polyurethane screen comprises a polyurethane material, is made of a polyurethane screen wire with a reinforcing core or a pure polyurethane screen wire, or a combination of the two.
4. The screen suitable for screening of asphalt recycling material according to claim 1, characterized in that, The screen protection strip is fixed to a position where the polyurethane screen contacts the screen box support or to a screen wire on the contact surface of the polyurethane screen and the screen box support, and the screen protection strip is a polyurethane strip.
5. A screen box suitable for screening of asphalt recycling material, characterized in that The screen body comprises a plurality of screen bodies according to any one of claims 1-4, which are arranged at an inclined angle, and the screen hook of the screen body is hooked on the box body at one end and is fixed on the box body by a tensioning device at the other end.