Primary screening device for asphalt concrete processing

Abstract

The utility model discloses a primary screening device for bituminous concrete processing, which comprises a mounting shell, the mounting shell comprises side plates and a protective plate which are symmetrically distributed, the rear sides of the symmetrically distributed side plates are connected through the protective plate, the bottoms of the symmetrically distributed side plates and the protective plate are connected with a blanking hopper, and the blanking hopper is connected with the mounting shell. Inclined plates are arranged on the front sides of the opposite sides of the symmetrically-distributed side plates, the rear sides of the inclined plates are connected with a mounting outer frame through sliding assemblies, and a plurality of screening mechanisms distributed at equal intervals are arranged between the inner walls of the front side and the rear side of the mounting outer frame. According to the vibrating screen, asphalt concrete raw materials are vibrated through the multiple screening mechanisms located in the outer mounting frame, so that large stone blocks in the asphalt concrete raw materials can be screened out, the screened large stone blocks can fall down through the inclined plate, the pressure of subsequent processing links is relieved, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of asphalt concrete technology, and in particular to a primary screening device for asphalt concrete processing. Background Technology

[0002] Asphalt concrete, also known as asphalt aggregate, is a mixture made by mixing artificially selected mineral aggregates with a specific gradation (such as crushed stone, crushed gravel, stone chips, sand, mineral powder, etc.) with a certain proportion of road asphalt material under strictly controlled conditions. It is widely used in the construction of roads, airports, parking lots, docks, squares, and other places, and is the main pavement material for modern high-grade roads.

[0003] In the current asphalt concrete processing flow, the pretreatment of raw materials is a crucial step, which directly affects the quality of the final product and production efficiency. In traditional processing methods, raw materials such as sand, gravel, mineral powder, and asphalt mixtures need to be transported quickly and continuously by a high-efficiency conveyor before entering the mixing process. However, the raw materials often contain stones of different sizes, especially the larger ones, which need to be manually screened out from the conveyor belt.

[0004] The manual screening method, which involves workers manually identifying and removing large stones that do not meet size requirements on the conveyor belt of a conveyor machine, not only imposes heavy labor intensity on the workers, but also easily leads to physical fatigue due to long working hours, thus affecting the efficiency and accuracy of screening. Furthermore, it is difficult for workers to maintain full concentration at all times, so some large stones inevitably get missed and are not identified and removed in time. Therefore, a primary screening device for asphalt concrete processing is proposed to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a primary screening device for asphalt concrete processing. The asphalt concrete raw material is vibrated by multiple screening mechanisms located inside the installation frame, thereby screening out large stones in the asphalt concrete raw material. The screened large stones can fall down through an inclined plate, thereby reducing the pressure on subsequent processing steps and reducing labor costs.

[0007] (II) Technical Solution

[0008] This utility model provides a primary screening device for asphalt concrete processing, including a mounting shell. The mounting shell includes symmetrically distributed side plates and a protective plate. The rear sides of the symmetrically distributed side plates are connected by the protective plate. The bottom of the symmetrically distributed side plates and the protective plate are connected to the discharge hopper. An inclined plate is provided on the front side of the opposite side of the symmetrically distributed side plates. The rear side of the inclined plate is connected to the mounting frame through a sliding component. Multiple screening mechanisms are provided between the inner walls of the front and rear sides of the mounting frame. A stabilizing component is provided between the rear end face of the mounting frame and the protective plate. A driving component is provided on the left end face of the left side plate. The output shaft of the driving component passes through the left side plate and is connected to the outer end face of the mounting frame. Support rods are distributed at intervals on the sides of the two side plates that are far apart from each other.

[0009] Preferably, the sliding assembly includes a slider and a slide rail, the slide rail is disposed on the rear end face of the inclined plate, one end of the slider is connected to the front side of the mounting frame, and the other end of the slider is slidably connected to the slide groove of the slide rail.

[0010] Preferably, the upper surface of the slide rail is inclined, and the lowest point of the upper surface of the slide rail is not higher than the highest point of the upper surface of the inclined plate.

[0011] Preferably, the screening mechanism includes an alignment component, a screening plate, and a connecting component. Multiple equidistantly distributed alignment components are disposed between the inner walls of the front and rear sides of the mounting frame. The screening plate is installed on the upper surface of the alignment component. The front and rear sides of the upper surface of the screening plate are respectively connected to the edge of the upper surface of the mounting frame through the connecting component.

[0012] Preferably, the alignment component includes a second connecting block and a limiting block. The second connecting block is disposed between the inner walls of the front and rear sides of the mounting frame, and the limiting block is disposed on the upper end face of the second connecting block. A limiting groove is formed at the bottom of the screening plate, and the limiting block is inserted into the limiting groove. The second connecting block is inclined.

[0013] Preferably, the connecting assembly includes fixing bolts, a fixing plate, and a first connecting block. The front and rear sides of the upper surface of the screening plate are respectively connected to the first connecting block. The side of the first connecting block that is far apart from each other is connected to the fixing plate. A plurality of fixing bolts pass through the fixing plate and extend into the interior of the mounting frame. The mounting frame and the fixing bolts are connected by threads.

[0014] Preferably, the stabilizing component includes a movable block and a slot, the slot extending through the middle of the protective plate, one end of the movable block being connected to the rear end of the mounting frame, and the other end of the movable block extending through the protective plate via the slot.

[0015] Preferably, the drive assembly includes an electric push rod and a support plate. The support plate is located on the left end face of the left side plate, and the electric push rod is located on the upper end face of the support plate. The output shaft of the electric push rod passes through the left side face of the left side plate and is connected to the left end face of the mounting frame.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] This primary screening device for asphalt concrete processing uses multiple screening mechanisms located inside the installation frame to vibrate the asphalt concrete raw material, thereby separating large stones from the raw material. The separated large stones fall down through an inclined plate, effectively separating large stones from the asphalt concrete raw material, thus reducing the pressure on subsequent processing stages and reducing labor costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a primary screening device for asphalt concrete processing proposed in this utility model.

[0019] Figure 2 This is a left view of a primary screening device for asphalt concrete processing proposed in this utility model.

[0020] Figure 3 This is a partial perspective view of a primary screening device for asphalt concrete processing proposed in this utility model.

[0021] Figure 4 This utility model proposes a primary screening device for asphalt concrete processing. Figure 3 A magnified view of A in the middle.

[0022] Figure 5 This utility model proposes a primary screening device for asphalt concrete processing. Figure 3 A magnified view of B in the middle.

[0023] Figure 6 This is a perspective view of the outer casing installed in a primary screening device for asphalt concrete processing according to the present invention.

[0024] Figure 7 This is a perspective view of the outer frame installed in the primary screening device for asphalt concrete processing proposed in this utility model.

[0025] Figure 8 This utility model proposes a primary screening device for asphalt concrete processing. Figure 7 A magnified view of C.

[0026] Figure 9This is a perspective view of the screening plate in a primary screening device for asphalt concrete processing proposed in this utility model.

[0027] Reference numerals: 1. Slot; 2. Electric push rod; 3. Support plate; 4. Side plate; 5. Support rod; 6. Protective plate; 7. Mounting frame; 8. Screening plate; 9. Inclined plate; 10. Moving block; 11. Feed hopper; 12. Sliding block; 13. Slide rail; 14. Fixing bolt; 15. Fixing plate; 16. First connecting block; 17. Limiting block; 18. Second connecting block; 19. Limiting groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figure 1-9As shown, the present invention proposes a primary screening device for asphalt concrete processing, comprising an installation shell, the installation shell including symmetrically distributed side plates 4 and protective plates 6, the rear sides of the symmetrically distributed side plates 4 being connected by the protective plates 6, the bottom of the symmetrically distributed side plates 4 and the protective plates 6 being connected to the discharge hopper 11, the front side of the opposite side of the symmetrically distributed side plates 4 being provided with an inclined plate 9, the rear side of the inclined plate 9 being connected to the installation outer frame 7 through a sliding component, multiple equidistantly distributed screening mechanisms being provided between the inner walls of the front and rear sides of the installation outer frame 7, a stabilizing component being provided between the rear end face of the installation outer frame 7 and the protective plate 6, a driving component being provided on the left end face of the left side plate 4, the output shaft of the driving component passing through the left side plate 4 and connected to the outer end face of the installation outer frame 7, and support rods 5 being spaced apart on the sides of the two side plates 4 that are far apart from each other.

[0032] In this invention, the drive assembly is activated, which drives the screening mechanisms located inside the mounting frame 7 to vibrate. Then, the asphalt concrete raw material is poured in, and it can be screened by the vibrating screening mechanisms. Large stones in the asphalt concrete raw material can be placed on the screening mechanisms and then fall onto the inclined plate 9 as the multiple screening mechanisms tilt. The large stones on the inclined plate 9 will also fall down, thereby separating the large stones from the asphalt concrete raw material.

[0033] In an optional embodiment, the sliding assembly includes a slider 12 and a slide rail 13. The slide rail 13 is disposed on the rear end face of the inclined plate 9. One end of the slider 12 is connected to the front side of the mounting frame 7, and the other end of the slider 12 is slidably connected to the slide groove of the slide rail 13. The upper end face of the slide rail 13 is inclined, and the lowest point of the upper end face of the slide rail 13 is not higher than the highest point of the upper end face of the inclined plate 9.

[0034] It should be noted that when the mounting frame 7 is moving, the mounting frame 7 can drive the slider 12 to move inside the slide rail 13, thereby improving the stability of the mounting frame 7 when moving.

[0035] In an optional embodiment, the screening mechanism includes an alignment component, a screening plate 8, and a connecting component. Multiple equidistantly distributed alignment components are disposed between the inner walls of the front and rear sides of the mounting frame 7. The screening plate 8 is installed on the upper surface of the alignment component. The front and rear sides of the upper surface of the screening plate 8 are respectively connected to the edge of the upper surface of the mounting frame 7 through the connecting component.

[0036] It should be noted that the alignment component can be used to align the screening plate 8 during installation, which facilitates the installation. The connecting component can be used to fix the screening plate 8. When the asphalt concrete raw material passes through multiple equally spaced screening plates 8, large stones in the asphalt concrete raw material can be screened out.

[0037] In an optional embodiment, the alignment component includes a second connecting block 18 and a limiting block 17. The second connecting block 18 is disposed between the inner walls of the front and rear sides of the mounting frame 7, and the limiting block 17 is disposed on the upper end face of the second connecting block 18. A limiting groove 19 is formed at the bottom of the screening plate 8, and the limiting block 17 is inserted into the inside of the limiting groove 19. The second connecting block 18 is inclined.

[0038] It should be noted that the width of the second connecting block 18 is the same as the width of the screening plate 8. When the screening plate 8 is installed, the limiting groove 19 at the bottom of the screening plate 8 can be inserted into the limiting block 17, so that the screening plate 8 can be quickly aligned, and the second connecting block 18 can provide a certain support force for the screening plate 8.

[0039] In an optional embodiment, the connecting assembly includes fixing bolts 14, fixing plate 15, and first connecting blocks 16. The front and rear sides of the upper surface of the screening plate 8 are respectively connected to the first connecting blocks 16. The side of the two first connecting blocks 16 that is far apart from each other is connected to the fixing plate 15. Multiple fixing bolts 14 pass through the fixing plate 15 and extend into the interior of the mounting frame 7. The mounting frame 7 and the fixing bolts 14 are connected by threads. The connecting assembly makes it easy to remove the screening plate 8 from the alignment assembly.

[0040] It should be noted that by rotating and removing the multiple fixing bolts 14, the screening plate 8 can be removed from the alignment assembly; then a usable screening plate 8 can be replaced, the screening plate 8 can be connected to the alignment assembly, and the multiple fixing bolts 14 can be rotated in the opposite direction to connect and fix the fixing plate 15 to the mounting frame 7.

[0041] In an optional embodiment, the stabilizing component includes a movable block 10 and a slot 1, the slot 1 extending through the middle of the protective plate 6, one end of the movable block 10 being connected to the rear end of the mounting frame 7, and the other end of the movable block 10 extending through the protective plate 6 via the slot 1.

[0042] It should be noted that when the drive component moves the mounting frame 7, it can also move the moving block 10 inside the slot 1, ensuring the stability of the mounting frame 7 during movement.

[0043] In an optional embodiment, the drive assembly includes an electric push rod 2 and a support plate 3. The support plate 3 is located on the left end face of the left side plate 4, and the electric push rod 2 is located on the upper end face of the support plate 3. The output shaft of the electric push rod 2 passes through the left side face of the left side plate 4 and is connected to the left end face of the mounting frame 7.

[0044] It should be noted that the support plate 3 can support the electric push rod 2, and when the electric push rod 2 is started, it can drive the mounting frame 7 to vibrate. When the mounting frame 7 vibrates, it can drive multiple equally distributed screening mechanisms to vibrate as well, thereby improving the screening efficiency.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A primary screening device for asphalt concrete processing, comprising an installation shell, the installation shell including symmetrically distributed side plates (4) and a protective plate (6), the rear sides of the symmetrically distributed side plates (4) being connected by the protective plate (6), and the bottoms of the symmetrically distributed side plates (4) and the protective plate (6) being connected to a discharge hopper (11), characterized in that, The symmetrically distributed side plates (4) have an inclined plate (9) on the front side of opposite sides. The rear side of the inclined plate (9) is connected to the mounting frame (7) through a sliding component. Multiple screening mechanisms are provided between the inner walls of the front and rear sides of the mounting frame (7). A stabilizing component is provided between the rear end face of the mounting frame (7) and the protective plate (6). A driving component is provided on the left end face of the left side plate (4). The output shaft of the driving component passes through the left side plate (4) and is connected to the outer end face of the mounting frame (7). Support rods (5) are distributed at intervals on the sides of the two side plates (4) that are far apart from each other.

2. The primary screening device for asphalt concrete processing according to claim 1, characterized in that, The sliding assembly includes a slider (12) and a slide rail (13). The slide rail (13) is located on the rear end face of the inclined plate (9). One end of the slider (12) is connected to the front side of the mounting frame (7), and the other end of the slider (12) is slidably connected to the groove of the slide rail (13).

3. The primary screening device for asphalt concrete processing according to claim 2, characterized in that, The upper surface of the slide rail (13) is inclined, and the lowest point of the upper surface of the slide rail (13) is not higher than the highest point of the upper surface of the inclined plate (9).

4. The primary screening device for asphalt concrete processing according to claim 1, characterized in that, The screening mechanism includes an alignment component, a screening plate (8), and a connecting component. Multiple equidistant alignment components are disposed between the inner walls of the front and rear sides of the mounting frame (7). The screening plate (8) is installed on the upper surface of the alignment component. The front and rear sides of the upper surface of the screening plate (8) are respectively connected to the edge of the upper surface of the mounting frame (7) through the connecting component.

5. The primary screening device for asphalt concrete processing according to claim 4, characterized in that, The alignment component includes a second connecting block (18) and a limiting block (17). The second connecting block (18) is located between the inner walls of the front and rear sides of the mounting frame (7). The limiting block (17) is located on the upper surface of the second connecting block (18). A limiting groove (19) is opened at the bottom of the screening plate (8). The limiting block (17) is inserted into the limiting groove (19). The second connecting block (18) is inclined.

6. The primary screening device for asphalt concrete processing according to claim 4, characterized in that, The connecting assembly includes fixing bolts (14), fixing plate (15), and first connecting block (16). The front and rear sides of the upper surface of the screening plate (8) are respectively connected to the first connecting block (16). The side of the first connecting block (16) that is far away from each other is connected to the fixing plate (15). Multiple fixing bolts (14) pass through the fixing plate (15) and extend into the interior of the mounting frame (7). The mounting frame (7) and the fixing bolts (14) are connected by threads.

7. The primary screening device for asphalt concrete processing according to claim 1, characterized in that, The stabilizing component includes a moving block (10) and a slot (1). The slot (1) passes through the middle of the protective plate (6). One end of the moving block (10) is connected to the rear end of the mounting frame (7). The other end of the moving block (10) passes through the protective plate (6) through the slot (1).

8. The primary screening device for asphalt concrete processing according to claim 1, characterized in that, The drive assembly includes an electric push rod (2) and a support plate (3). The support plate (3) is located on the left end face of the left side plate (4). The electric push rod (2) is located on the upper end face of the support plate (3). The output shaft of the electric push rod (2) passes through the left side face of the left side plate (4) and is connected to the left end face of the mounting frame (7).

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