Asphalt concrete raw material vibrating screening and dust removing integrated machine

Abstract

The utility model belongs to bitumen concrete production auxiliary equipment field, concretely relates to a bitumen concrete raw material vibrating screen divides dust removal integrated machine, including the box, the box is L type, is equipped with the screen room, first dust chamber and second dust chamber that communicate in the box, a plurality of air holes are passed through on the left side wall of box, the top of box is equipped with the feeding hopper, dustproof curtain that is fixedly connected with the port of discharge port corresponds in the box, a plurality of support seat are fixedly connected to the upper end of screen room, each support seat is connected with vibrating plate through vibrating spring, vibrating plate is fixedly connected with the screen basket that penetrates its ontology, the bottom of vibrating plate is equipped with vibrating motor, the lower end of screen room is equipped with the gravel collection basket, installs the plate type dust filter in second dust chamber, the top of box still is equipped with the exhaust port, is equipped with the exhaust fan corresponding exhaust port, installs the exhaust pipe on the exhaust fan. The utility model has good dust cleaning effect, and simple structure, stable operation.

Description

Technical Field

[0001] This utility model relates to an integrated machine for vibrating screening and dust removal of asphalt concrete raw materials, belonging to the field of auxiliary equipment for asphalt concrete production. Background Technology

[0002] Asphalt concrete is a mixture made by mixing sand, gravel, stone powder, and various additives with a certain proportion of road asphalt material under strictly controlled conditions. Sand and gravel are the main raw materials for asphalt concrete production, and their particle size and uniformity significantly affect the quality of the concrete. However, sand and gravel raw materials contain a small amount of large particles. Therefore, screening of sand and gravel is necessary in the production of asphalt concrete. Traditionally, screening of sand and gravel typically involves setting up an inclined screen at the construction site, with workers using hand tools to shovel the sand and gravel onto the screen for screening. This method is labor-intensive and inconvenient for collecting the screened sand and gravel. With technological advancements, vibrating screening devices are now commonly used for screening sand and gravel. For example, the vibrating screening machine for asphalt concrete disclosed in patent application CN213967646U can screen sand and gravel and clean up dust. However, the vibration of its screening screen is achieved by driving the gears to rotate via a motor, and further through the linkage of a hollow frame, rack, sliding rod, deflection rod, and other structures. The structure is complex and the operation is not stable. In addition, the dust is atomized and cleaned by a high-pressure water pump and atomizing nozzle, and the resulting mud and water will flow outside, causing the site to be muddy, resulting in poor practical application effect. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an integrated machine for vibrating screening and dust removal of asphalt concrete raw materials with stable operation and good application effect.

[0004] The asphalt concrete raw material vibrating screening and dust removal integrated machine of this utility model includes a housing, which is L-shaped. The housing is divided into a screening chamber, a first dust removal chamber, and a second dust removal chamber by a first partition and a second partition. A first dust suction port is passed through the upper end of the first partition, and a second dust suction port is passed through the lower end of the second partition. Several ventilation holes are passed through the left side wall of the housing. A feeding hopper corresponding to the screening chamber is provided on the top of the housing, and the discharge port of the feeding hopper is inclined downwards. A dustproof curtain corresponding to the discharge port is fixedly connected inside the housing. Multiple support seats are fixedly connected to the upper end of the screening chamber, and each support seat is equipped with a vibrating spring. Each vibrating spring has a vibrating plate connected to its top. A screen basket that runs through the body of the vibrating plate is fixedly connected to the vibrating plate. A vibrating motor is installed at the bottom of the vibrating plate. A crushed stone collection basket is placed at the lower end of the screening chamber. The front side wall of the box is provided with a large particle outlet corresponding to the screen basket and a crushed stone outlet corresponding to the crushed stone collection basket. The corresponding large particle outlet and crushed stone outlet are respectively equipped with an openable and closable upper sealing door and a lower sealing door. A plate dust filter is installed in the second dust removal chamber. The top of the box is also provided with an exhaust port corresponding to the second dust removal chamber. An exhaust fan is installed at the corresponding exhaust port, and an exhaust pipe is installed on the exhaust fan.

[0005] Furthermore, two corresponding sliding grooves are fixedly connected in the second dust removal chamber, and the plate dust filter is inserted between the two sliding grooves. The side wall of the box is provided with an insertion port, and a mounting plate is detachably connected to the corresponding insertion port. The mounting plate is fixedly connected to the plate dust filter.

[0006] Furthermore, the side wall of the housing is provided with a cleaning port corresponding to the lower end of the second dust removal chamber, and a front cover plate is detachably connected to the cleaning port.

[0007] Furthermore, the top of the box has a strip-shaped hole that corresponds to and matches the dust curtain, and a top cover plate is detachably connected to the corresponding strip-shaped hole. The dust curtain is fixedly connected to the top cover plate.

[0008] Furthermore, the screen basket is equipped with a flange, which is fixedly connected to the vibrating plate by multiple bolts.

[0009] Furthermore, the flange is located at the upper end of the sieve basket.

[0010] The advantages of this utility model compared with the prior art are: The asphalt concrete raw material vibrating screen dust removal integrated machine described in this utility model can clean up the dust generated during the sand and gravel screening process through an exhaust fan and a plate dust filter. A dust curtain is installed at the discharge port to effectively prevent dust from leaking out through the feeding hopper without affecting the feeding, thus ensuring the dust removal effect. The vibrating motor and vibrating spring can drive the vibrating plate to vibrate, thereby driving the screen basket to vibrate and screen the sand and gravel. The structure is simple and the operation is stable. The box is L-shaped, and the layout of each structure is compact, occupying a small area. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention; Figure 2 yes Figure 1 Top view; Figure 3 yes Figure 2 Sectional view at point AA.

[0012] In the diagram: 1. Box body; 2. Front cover plate; 3. Mounting plate; 4. Lower sealing door; 5. Upper sealing door; 6. Upper cover plate; 7. Feed hopper; 8. Exhaust fan; 9. Exhaust pipe; 10. First partition plate; 11. Screening chamber; 12. First dust removal chamber; 13. Discharge port; 14. Dust curtain; 15. First dust suction port; 16. Support base; 17. Vibration spring; 18. Vibration motor; 19. Vibration plate; 20. Flange; 21. Screen basket; 22. Crushed stone collection basket; 23. Second partition plate; 24. Second dust suction port; 25. Second dust removal chamber; 26. Plate dust filter; 27. Slide chute; 28. Exhaust port; 29. ​​Vent hole. Detailed Implementation

[0013] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Example 1: like Figures 1 to 3As shown, the integrated asphalt concrete raw material vibrating screening and dust removal machine of this utility model includes a housing 1, which is L-shaped. The housing 1 is divided into a screening chamber 11, a first dust removal chamber 12, and a second dust removal chamber 25 by a first partition 10 and a second partition 23. A first dust suction port 15 passes through the upper end of the first partition 10, and a second dust suction port 24 passes through the lower end of the second partition 23. Several ventilation holes 29 pass through the left side wall of the housing 1. A feeding hopper 7 corresponding to the screening chamber 11 is provided on the top of the housing 1. The discharge port 13 of the feeding hopper 7 is inclined downward. A dustproof curtain 14 corresponding to the port of the discharge port 13 is fixedly connected inside the housing 1. Multiple support seats 16 are fixedly connected to the upper end of the screening chamber 11, and each support seat 16 is equipped with a... Vibrating springs 17 are connected to the top of each vibrating spring 17 by a vibrating plate 19. A screen basket 21 is fixedly connected to the vibrating plate 19 and passes through its body. A vibrating motor 18 is installed at the bottom of the vibrating plate 19. A crushed stone collection basket 22 is placed at the lower end of the screening chamber 11. A large particle outlet corresponding to the screen basket 21 and a crushed stone outlet corresponding to the crushed stone collection basket 22 are provided on the front side wall of the box body 1. The corresponding large particle outlet and crushed stone outlet are respectively equipped with an openable and closable upper sealing door 5 and a lower sealing door 4. A plate dust filter 26 is installed in the second dust removal chamber 25. The top of the box body 1 is also provided with an exhaust port 28 corresponding to the second dust removal chamber 25. An exhaust fan 8 is installed on the corresponding exhaust port 28. An exhaust pipe 9 is installed on the exhaust fan 8.

[0014] During operation, the vibrating motor 18 activates, driving the vibrating plate 19 to vibrate under the action of the vibrating spring 17, thereby causing the screen basket 21 to vibrate. Simultaneously, the exhaust fan 8 activates, creating negative pressure within the screening chamber 11. The vent 29 is used to replenish gas into the screening chamber 11 to prevent excessive negative pressure from hindering dust removal. Sand and gravel fall into the vibrating screen basket 21 through the discharge port 13 of the feeding hopper 7. Under the action of the screen basket 21, qualified gravel passes through and falls into the gravel collection basket 22, while a small amount of larger sand and gravel remains in the screen basket 21. Under the action of the dust curtain 14, the dust generated during the screening process will not leak out through the feed hopper 7. Under the action of the exhaust fan 8, the dust enters the first dust removal chamber 12 through the first dust suction port 15, and then enters the second dust removal chamber 25 through the second dust suction port 24. Then it adheres to the plate dust filter 26. The airflow after dust removal is discharged through the exhaust pipe 9. After the work is completed, the crushed stone collection basket 22 can be taken out by opening the lower sealing door 4 to obtain qualified sand and gravel. The large sand and gravel particles retained in the screen basket 21 can be taken out by opening the upper sealing door 5.

[0015] Example 2: like Figures 1 to 3 As shown, based on Example 1, Furthermore, two corresponding sliding grooves 27 are fixedly connected inside the second dust removal chamber 25. The plate dust filter 26 is inserted between the two sliding grooves 27. The side wall of the housing 1 is provided with an insertion port, and a mounting plate 3 is detachably connected to the corresponding insertion port. The mounting plate 3 is fixedly connected to the plate dust filter 26. By removing the mounting plate 3, the plate dust filter 26 can be pulled out from the sliding groove 27, thereby facilitating the cleaning and replacement of the plate dust filter 26.

[0016] Furthermore, the side wall of the housing 1 is provided with a cleaning port corresponding to the lower end of the second dust removal chamber 25, and a front cover plate 2 is detachably connected to the corresponding cleaning port. By periodically removing the front cover plate 2, the small particles of sand and gravel carried by the airflow can be cleaned.

[0017] Furthermore, the top of the housing 1 has a through-hole corresponding to the dust curtain 14, and a top cover plate 6 is detachably connected to the through-hole. The dust curtain 14 is fixedly connected to the top cover plate 6. By removing the top cover plate 6, the dust curtain 14 can be taken out from the through-hole, thus facilitating the maintenance and replacement of the dust curtain 14.

[0018] Furthermore, the screen basket 21 is provided with a flange 20, which is fixedly connected to the vibrating plate 19 by multiple bolts. By removing the bolts, the screen basket 21 can be disassembled, thereby facilitating the maintenance and replacement of the screen basket 21.

[0019] Furthermore, the flange 20 is located at the upper end of the screen basket 21, so that the bottom wall of the screen basket 21 and the vibration motor 18 are both located below the vibration plate 19, thereby saving installation space and making the structure more compact.

[0020] It should be noted that in the description of this utility model, the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An integrated machine for vibrating screening and dust removal of asphalt concrete raw materials, comprising a housing (1), characterized in that: The box (1) is L-shaped. The box (1) is divided into a screening chamber (11), a first dust removal chamber (12), and a second dust removal chamber (25) by a first partition (10) and a second partition (23). The upper end of the first partition (10) has a first dust suction port (15), and the lower end of the second partition (23) has a second dust suction port (24). Several ventilation holes (29) are penetrated on the left side wall of the box (1). The top of the box (1) is provided with a feeding hopper (7) corresponding to the screening chamber (11). The discharge port (13) of the feeding hopper (7) is inclined downward. A dust curtain (14) corresponding to the port of the discharge port (13) is fixedly connected inside the box (1). Multiple support seats (16) are fixedly connected to the upper end of the screening chamber (11). Each support seat (16) is equipped with a vibration spring (17). Each vibration spring (17) Vibrating plates (19) are connected between the top of each of the 17), and a screen basket (21) that runs through the body is fixedly connected to the vibrating plate (19). A vibrating motor (18) is installed at the bottom of the vibrating plate (19). A crushed stone collection basket (22) is placed at the lower end of the screening chamber (11). A large particle outlet corresponding to the screen basket (21) and a crushed stone outlet corresponding to the crushed stone collection basket (22) are provided on the front side wall of the box body (1). The corresponding large particle outlet and crushed stone outlet are respectively equipped with an openable upper sealing door (5) and a lower sealing door (4). A plate dust filter (26) is installed in the second dust removal chamber (25). The top of the box body (1) is also equipped with an exhaust port (28) corresponding to the second dust removal chamber (25). An exhaust fan (8) is installed on the corresponding exhaust port (28). An exhaust pipe (9) is installed on the exhaust fan (8).

2. The integrated machine for vibrating screening and dust removal of asphalt concrete raw materials according to claim 1, characterized in that: The second dust removal chamber (25) has two corresponding sliding grooves (27) fixedly connected inside. The plate dust filter (26) is inserted between the two sliding grooves (27). The side wall of the box (1) is provided with an insertion port. The corresponding insertion port is detachably connected to an installation plate (3). The installation plate (3) is fixedly connected to the plate dust filter (26).

3. The integrated asphalt concrete raw material vibrating screen and dust removal machine according to claim 1, characterized in that: The side wall of the housing (1) is provided with a cleaning port corresponding to the lower end of the second dust removal chamber (25), and a front cover plate (2) is detachably connected to the cleaning port.

4. The integrated asphalt concrete raw material vibrating screen and dust removal machine according to claim 1, characterized in that: The top of the box (1) has a strip-shaped hole that corresponds to and is adapted to the dust curtain (14). A top cover plate (6) is detachably connected to the corresponding strip-shaped hole. The dust curtain (14) is fixedly connected to the top cover plate (6).

5. The integrated asphalt concrete raw material vibrating screen and dust removal machine according to any one of claims 1 to 4, characterized in that: The screen basket (21) is provided with a flange (20), and the flange (20) is fixedly connected to the vibrating plate (19) by multiple bolts.

6. The integrated dust removal and screening machine for asphalt concrete raw materials according to claim 5, characterized in that: The flange (20) is located at the upper end of the sieve basket (21).

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