Overflowed material recovery device for asphalt mixing station

Abstract

The utility model provides an asphalt mixing station overflow material recovery device which comprises a rotary screen arranged in a shell at a set inclination angle, a feeding port corresponding to the higher end of the rotary screen is formed in the top of the shell, and a first discharging port corresponding to the lower end of the rotary screen and a second discharging port corresponding to the circumferential face of the rotary screen are formed in the bottom of the shell. An access hole is further formed in the top of the shell, and a door plate capable of being opened and closed is arranged on the access hole. According to the technical scheme, overflowing materials flow into the rotary screen through the feeding port, aggregate of different specifications flows out through the first discharging port and the second discharging port after screening, and the utilization rate of the overflowing materials is increased.

Description

Technical Field

[0001] The present application relates to the field of road engineering technology, and in particular to an asphalt mixing station overflow recovery device. Background Art

[0002] In the field of road engineering, asphalt mixing plants can experience overflow during operation due to some aggregate not meeting grading requirements. If this overflow is not effectively handled, it will lead to resource waste and environmental pollution. To address this issue, the inventors have proposed an overflow recovery device for asphalt mixing plants. Utility Model Content

[0003] The purpose of this application is to provide an overflow recovery device for an asphalt mixing plant to improve the utilization rate of overflow.

[0004] The embodiment of the present application is implemented as follows:

[0005] The present application provides an asphalt mixing plant overflow recovery device, comprising a drum screen arranged at a set inclination angle inside a shell, a feed port corresponding to the higher end of the drum screen being provided at the top of the shell, a first discharge port corresponding to the lower end of the drum screen being provided at the bottom of the shell, and a second discharge port corresponding to the peripheral surface of the drum screen being provided, and an inspection port being further provided at the top of the shell, with an openable and closable door panel being provided on the inspection port.

[0006] In the technical solution of the present application, the overflow material flows into the drum screen through the feed port, and after screening, the aggregates of different specifications flow out through the first discharge port and the second discharge port respectively, thereby improving the utilization rate of the overflow material.

[0007] In an optional embodiment, reinforcing ribs are provided on both sides of the inspection opening, and the door panel can be slidably engaged between the two corresponding reinforcing ribs.

[0008] In an alternative embodiment, the reinforcing rib is configured in an arc shape that is coaxially arranged with the drum screen.

[0009] In an alternative embodiment, the reinforcing rib is configured to be L-shaped along the cross section.

[0010] In an optional embodiment, an assembly groove is provided on the door panel, and positioning plates are slidably engaged at both ends of the assembly groove. A handle is screwed into the assembly groove between the two positioning plates, and the handle has a conical extrusion portion, which is configured to push the two positioning plates outward until they are tightly pressed against the reinforcing ribs as the handle is screwed in.

[0011] In an optional embodiment, the extension direction of the assembly groove is parallel to the axis of the drum screen.

[0012] In an optional embodiment, a limiting plate abutting against the top of the positioning plate is provided on the top of the assembly groove.

[0013] In an optional embodiment, the positioning plates are symmetrically arranged on both sides of the handle.

[0014] In an alternative embodiment, the handle is arranged along the radial direction of the trommel.

[0015] In an alternative embodiment, the pressing portion is arranged coaxially with the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application, rather than to limit the scope of the present application. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of an overflow recovery device for an asphalt mixing plant according to an embodiment of the present application;

[0018] Figure 2 is a top view of an asphalt mixing plant overflow recovery device according to an embodiment of the present application;

[0019] Figure 3 1 is a schematic diagram of the installation of a door panel according to an embodiment of the present application;

[0020] Figure 4 is a cross-sectional view of a door panel according to an embodiment of the present application;

[0021] Reference numerals:

[0022] 10. Housing;

[0023] 20. Drum screen;

[0024] 30. Door panels;

[0025] 11. Feed inlet;

[0026] 12. First discharge port;

[0027] 13. Second discharge port;

[0028] 14. Strengthening ribs;

[0029] 15. Inspection port;

[0030] 21. Drive shaft;

[0031] 22. Motor;

[0032] 31. Assembly slot;

[0033] 32. Positioning plate;

[0034] 33. Handle;

[0035] 34. Limit plate;

[0036] 35. Extrusion department. DETAILED DESCRIPTION

[0037] Example 1

[0038] See also Figures 1-4 This embodiment provides an asphalt mixing station overflow recovery device to improve the utilization rate of overflow.

[0039] In this embodiment, the asphalt mixing plant overflow recovery device includes a drum screen 20 arranged at a set inclination angle inside a shell 10. The top of the shell 10 is provided with a feed port 11 corresponding to the higher end of the drum screen 20. The bottom of the shell 10 is provided with a first discharge port 12 corresponding to the lower end of the drum screen 20, and a second discharge port 13 corresponding to the circumference of the drum screen 20. The top of the shell 10 is also provided with an inspection port 15, and the inspection port 15 is provided with an openable and closable door panel 20.

[0040] In the technical solution of this embodiment, the overflow material flows into the drum screen 20 through the feed port 11, and after screening, the aggregates of different specifications flow out through the first discharge port 12 and the second discharge port 13 respectively, thereby improving the utilization rate of the overflow material.

[0041] It should be noted that the shell 10 is formed into a cylindrical shape by two semicircular shell parts. The shell 10 is set on the frame, and the axis of the shell 10 maintains an inclination angle of 5° in the vertical plane. The drum screen 20 is arranged inside the shell 10 and remains coaxial with the shell 10, that is, the drum screen 20 as a whole maintains an inclination angle of 5°. The drum screen 20 is fixed on the drive shaft 21, and the drive shaft 21 is connected to the motor 22 for transmission. The motor 22 is used to drive the drum screen 20 to rotate inside the shell 10.

[0042] In addition, the overflow generated by the asphalt mixing plant is introduced into the feed port 11 through the chute and enters the interior of the drum screen 20 through the feed port 11. The rotation of the drum screen 20 completes the screening of the overflow. The fine aggregate passes through the drum screen 20 and falls into the second discharge port 13 and is discharged. The coarse aggregate falls into the first discharge port 12 from the lower end of the drum screen 20 and is discharged. The recovery and screening of the overflow is completed, which can improve the utilization rate of the overflow.

[0043] In addition, an inspection port 15 is provided on the top of the housing 10 , and an openable and closable door panel 30 is provided on the inspection port 15 . The drum screen 20 can be inspected through the inspection port 15 to facilitate cleaning of gravel stuck on the drum screen 20 .

[0044] Example 2

[0045] The difference between this embodiment and embodiment 1 is that reinforcing ribs 14 are provided on the shell 10 on both sides of the inspection port 15, and the reinforcing ribs 14 are constructed into an arc shape arranged coaxially with the drum screen 20, and the reinforcing ribs 14 are constructed into an L shape along the cross section, and the arc-shaped door panel 30 as a whole can be slidably clamped between the two corresponding reinforcing ribs 14.

[0046] In order to fix the position of the door panel 30, an assembly groove 31 is opened on the door panel 30, and the extension direction of the assembly groove 31 is parallel to the axis of the drum screen 20. Positioning plates 32 are slidably clamped at both ends of the assembly groove 31, and a limit plate 34 is provided on the top of the assembly groove 31 to abut against the top of the positioning plate 32. A handle 33 is screwed into the assembly groove 31 between the two positioning plates 32, and the two positioning plates 32 are symmetrically arranged on both sides of the handle 33. The handle 33 is arranged along the radial direction of the drum screen 20 as a whole. The handle 33 has a conical extrusion portion 35, which is coaxially arranged with the handle 33, and the extrusion portion 35 is configured to push the two positioning plates 32 outward until they are tightly against the reinforcing rib 14 as the handle 33 is screwed in.

[0047] It should be noted that the positioning plate 32 as a whole remains parallel to the axis of the drum screen 20. When the positioning plate 32 slides outward to the end of the assembly groove 31, it can be pressed against the inner wall of the reinforcing rib 14. By tightening the two positioning plates 32 between the two reinforcing ribs 14, the position of the door panel 30 can be fixed.

[0048] It should be noted that the handle 33 includes a threaded section for screwing into the door panel 30 and a smooth section for gripping. The diameter of the smooth section is larger than the diameter of the threaded section. The conical extrusion portion 35 is transitionally connected between the smooth section and the threaded section, and the three are coaxially arranged and form an integrated structure.

[0049] In this embodiment, the door panel 30 can be rotated more conveniently by holding the handle 33. At the same time, the position of the door panel 30 can be fixed by rotating the handle 33. The door panel 30 is an arc-shaped panel, and the curvature of the door panel 30 is greater than the curvature of the inspection port 15. The size of the opening and closing of the inspection port 15 can be adjusted by rotating the door panel 30.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An asphalt mixing plant overflow recovery device, characterized in that: The top of the shell is provided with a feeding port corresponding to the higher end of the drum screen, the bottom of the shell is provided with a first discharge port corresponding to the lower end of the drum screen, and a second discharge port corresponding to the peripheral surface of the drum screen, the top of the shell is also provided with an inspection port, the inspection port is provided with an openable and closable door panel, and reinforcing ribs are provided on both sides of the inspection port, the door panel can be slidably engaged between the two corresponding reinforcing ribs, the reinforcing ribs are constructed into an arc arranged coaxially with the drum screen, the reinforcing ribs are constructed into an L-shape along the cross-section, an assembly groove is provided on the door panel, and positioning plates are slidably engaged at both ends of the assembly groove, a handle is screwed into the assembly groove between the two positioning plates, the handle has a conical extrusion portion, and the extrusion portion is configured to push the two positioning plates outward to abut against the reinforcing ribs as the handle is screwed in.

2. The overflow recovery device for an asphalt mixing plant according to claim 1, characterized in that: The extending direction of the assembly groove is parallel to the axis of the drum screen.

3. The overflow recovery device for an asphalt mixing plant according to claim 2, characterized in that: A limiting plate abutting against the top of the positioning plate is provided on the top of the assembly groove.

4. The overflow recovery device for an asphalt mixing plant according to claim 3, characterized in that: The positioning plates are symmetrically arranged on both sides of the handle.

5. The overflow recovery device for an asphalt mixing plant according to claim 4, characterized in that: The handle is arranged along the radial direction of the drum screen.

6. The overflow recovery device for an asphalt mixing plant according to claim 5, characterized in that: The pressing portion is coaxially arranged with the handle.

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