Cleaning and conveying device for asphalt stone

Abstract

The utility model discloses an asphalt stone cleaning and conveying device which comprises a box body and a belt conveyor, supporting legs are installed on the periphery of the lower end of the box body, a discharging opening is formed in the lower end of the box body, the lower end of the box body is connected with a discharging cover corresponding to the discharging opening in position, and the belt conveyor is connected with the discharging cover. A discharging cover is arranged on the upper portion of the box body, a belt conveyor is arranged on the lower portion of the discharging cover, two supporting plates are installed in an inner cavity of the box body, and a rolling washing mechanism is jointly and rotationally connected between the two supporting plates. And meanwhile, spray nozzles are spirally arranged and mounted on the spray washing mechanism to spray water to wash the stone, so that water in a water pipe is effectively discharged from multiple angles at the same time, stone in different directions can be conveniently sprayed and washed, the impurity and soil washing efficiency is effectively improved, and the washing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt aggregate processing technology, specifically to a cleaning and conveying device for asphalt aggregate. Background Technology

[0002] Asphalt aggregate is one of the materials that can be used to produce asphalt mixtures and modified asphalt mixtures. During the production and processing of aggregates, aggregate conveying equipment is needed to transport the aggregates to the storage location for further processing. Most of the aggregates in asphalt mixtures are crushed stone, but crushed stone contains clay and impurities. It must be cleaned before use to reduce the mud content and impurities in the aggregates, thereby greatly improving the bonding force between the binder and the aggregates. Therefore, aggregates need to be cleaned before being transported to the storage location.

[0003] Existing methods for cleaning stone mainly involve installing multiple drainage pipes on a vibrating screen to spray water onto the stone. This method requires a large amount of water and has poor cleaning results, failing to achieve sufficient contact between water and stone, thus failing to thoroughly clean the stone. According to a patent publication number CN214502020U, an asphalt stone cleaning and drying device includes a cleaning chamber. A water pump is bolted to the top of the cleaning chamber near the left edge. The input end of the water pump is connected to an external water tank via a flexible hose. The water pump's input end is connected to a water pipe via a flexible hose. The bottom of the water pipe is connected to multiple nozzles via a flexible hose. Fixed blocks are fixedly connected to the upper and lower inner walls of the left side of the cleaning tank. Fixed plates are fixedly connected to the inner surface of the cleaning tank. Fixed boxes are fixedly connected to the sides of the cleaning tank and the fixed plates that are close to each other. A rotating roller is rotatably connected to the sides of the fixed plates and the fixed blocks that are close to each other, and the rotating roller is located at the center of the inside of the fixed box. A rotating motor is fixedly connected to the right side of the fixed plate via bolts, and the output end of the rotating motor is fixedly connected to one end of the rotating roller.

[0004] The aforementioned patented technical solution, through a water pump, water pipe, nozzle, rotary motor, rotary roller, and fixed box, can achieve comprehensive cleaning of asphalt aggregate, avoiding incomplete cleaning and degradation of the adhesion between the asphalt binder and the aggregate. However, since the nozzle is located above the fixed box, although the sprayed water can enter the water inlet on the outer surface of the fixed box, some water cannot enter, resulting in water waste. Furthermore, the water can only effectively spray and clean the aggregate adhering to the inner wall of the fixed box, while the aggregate inside, although wetted, cannot be properly washed, leaving impurities and dirt on its surface unremoved, resulting in poor cleaning effect. Therefore, we provide an asphalt aggregate cleaning and conveying device to solve this problem. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution for a washing and conveying device for asphalt aggregate that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A washing and conveying device for asphalt aggregate, comprising a box body and a belt conveyor. Support legs are installed around the lower end of the box body, and a discharge port is provided at the lower end of the box body. A discharge hood corresponding to the position of the discharge port is connected to the lower end of the box body. The belt conveyor is positioned below the discharge hood. Two support plates are installed inside the box body, and a tumbling washing mechanism is rotatably connected between the two support plates. A transmission mechanism is driven to the outer side of the tumbling washing mechanism, and a spray washing mechanism is driven to the outer side of the transmission mechanism. One end of the spray washing mechanism is inserted into the inner cavity of the tumbling washing mechanism.

[0007] The tumbling mechanism includes a roller rotatably mounted between two support plates. A drive motor is installed on the right side of the inner cavity of the box. Several drain holes are provided on the outer side of the roller. A connecting frame is installed on the right side of the inner cavity of the roller. A fixed shaft is connected to the right side of the connecting frame. The fixed shaft is connected to the output end of the drive motor.

[0008] The spraying mechanism includes a circular shell inserted into the inner cavity of the drum. A first sealing ring is integrally connected to the outer side of the circular shell. Three sets of water spray pipes are installed on the right side of the circular shell. A displacement component is connected to the left side of the circular shell. A fixed pipe is connected to the left end of the displacement component. A water pipe is rotatably connected to the left end of the fixed pipe. One end of the water pipe passes through the box and extends to the outside. The fixed pipe is connected to the transmission mechanism.

[0009] As a further embodiment of this utility model: a sealing disc is rotatably connected to the right side of the inner cavity of the roller, and a feeding pipe is connected to the outer side of the sealing disc. The upper end of the feeding pipe penetrates the box body and extends above it.

[0010] As a further embodiment of this utility model: the transmission mechanism includes a transmission shaft rotatably connected to the right side of the inner cavity of the box, a first pulley is installed at the output end of the drive motor, a second pulley and a third pulley are installed on the outside of the transmission shaft, a first belt is sleeved between the first pulley and the second pulley, a fourth pulley is installed on the outside of the fixed tube, and a second belt is sleeved between the third pulley and the fourth pulley.

[0011] As a further embodiment of this utility model: the displacement component includes an inner tube connected to a circular shell, an outer tube movably sleeved on the outside of the inner tube, a pressure plate connected to one end of the inner tube, a second sealing ring matching the outer diameter of the inner tube installed in the inner cavity of the outer tube, the second sealing ring being movably sleeved with the inner tube, a spring connected to the left side of the second sealing ring, the left end of the spring being connected to the pressure plate, a through hole in the middle of the pressure plate being conical in shape, sliders symmetrically connected to the outside of the pressure plate, and sliding grooves symmetrically provided in the inner cavity of the outer tube for sliding contact with the sliders, the outer tube being connected to a fixed tube.

[0012] As a further embodiment of this utility model: several nozzles are installed on the outside of the water spray pipe, and the nozzles are arranged in a spiral shape at the installation angle.

[0013] As a further embodiment of this utility model: an upright plate is installed in the inner cavity of the box, and the upright plate is rotatably connected to the drive shaft and the outer tube.

[0014] As a further embodiment of this utility model: the lower end of the box is provided with a drain outlet corresponding to the position of the roller, a drain box is installed at the lower end of the box, and a drain pipe is installed at the lower end of the drain box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The tumbling washing mechanism rotates the rollers, causing the stones to rotate simultaneously. Meanwhile, the spray washing mechanism receives high-pressure water that enters the outer pipe and impacts the pressure plate. Some water is discharged through the through-holes, and the high-pressure water is then discharged into three sets of spray pipes, which are then sprayed out through several spirally arranged nozzles. This allows water in each spray pipe to be discharged from multiple angles simultaneously, facilitating water spraying and cleaning of stones from different directions. This effectively improves the efficiency of cleaning impurities and dirt. The tumbling washing mechanism's drive motor drives the transmission mechanism, which in turn drives the spray washing mechanism, ensuring stable rotation of the entire spray washing mechanism. Simultaneously, the rollers cause the stones to rotate in a spiral motion, effectively dislodging surface impurities and dirt as they are sprayed with water, further enhancing the cleaning effect.

[0017] 2. When the high-pressure water enters the outer pipe of the spray washing mechanism and impacts the pressure plate, the pressure plate compresses the spring and drives the second sealing ring, inner pipe, and round shell to move to the right. Finally, part of the round shell is inserted into the inner cavity of the drum, effectively blocking the stones and facilitating their cleaning inside the drum. After the stones in the inner cavity of the drum are cleaned, the external high-pressure water supply is turned off, and the compressed spring rebounds and resets. This causes the pressure plate to drive the second sealing ring, inner pipe, round shell, and spray pipe to reset and move, so that the round shell moves away from the drum and support plate. As the drum continues to rotate, the stones in the inner cavity of the drum are discharged from the inner cavity and finally discharged through the discharge hood onto the belt conveyor for automatic conveying after effective cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a three-dimensional half-section view of the box body of this utility model;

[0020] Figure 3 This is a schematic diagram of the semi-sectional three-dimensional structure of the roller of this utility model;

[0021] Figure 4 This is a partial cross-sectional perspective view of the three-dimensional structure of the tumbling mechanism of this utility model;

[0022] Figure 5 This is a partially disassembled three-dimensional structural diagram of the present invention;

[0023] Figure 6 This is a cross-sectional three-dimensional structural diagram of part of the spray washing mechanism of this utility model;

[0024] Figure 7 This is the utility model Figure 6 A magnified schematic diagram of the device in section A.

[0025] The reference numerals and names in the figure are as follows:

[0026] Box body-1, support legs-2, feeding pipe-3, sewage tank-4, sewage pipe-5, tumble washing mechanism-6, drive motor-61, drum-62, connecting frame-63, fixed shaft-64, sealing disc-65, transmission mechanism-7, transmission shaft-71, first pulley-72, second pulley-73, first belt-74, third pulley-75, fourth pulley-76, second belt-77, spray washing mechanism- 8. Round shell - 81. Inner tube - 82. Outer tube - 83. Water spray pipe - 84. Nozzle - 85. Fixed pipe - 86. Water pipe - 87. First sealing ring - 88. Limiting block - 89. Second sealing ring - 810. Spring - 811. Pressure plate - 812. Through hole - 813. Slider - 814. Slide groove - 815. Support plate - 9. Vertical plate - 11. Discharge cover - 12. Limiting post - 13. Belt conveyor - 14. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 A washing and conveying device for asphalt aggregate includes a housing 1 and a belt conveyor 14. Support legs 2 are installed around the lower end of the housing 1. Two support plates 9 are installed in the inner cavity of the housing 1. A tumbling washing mechanism 6 is rotatably connected between the two support plates 9. The tumbling washing mechanism 6 includes a roller 62 rotatably installed between the two support plates 9. A drive motor 61 is installed on the right side of the inner cavity of the housing 1. Several drain holes are provided on the outer side of the roller 62. A connecting frame 63 is installed on the right side of the inner cavity of the roller 62. A fixed shaft 64 is connected to the right side of the connecting frame 63. The fixed shaft 64 is connected to the output end of the drive motor 61. A sealing disc 65 is rotatably connected to the right side of the inner cavity of the roller 62. A feeding pipe 3 is connected to the outer side of the sealing disc 65. The upper end of the feeding pipe 3 penetrates the housing 1 and extends above it.

[0029] The external feeding device feeds a fixed amount of material into the drum 62 through the feeding pipe 3. Then, the external controller starts the drive motor 61, which in turn drives the fixed shaft 64 to rotate. The fixed shaft 64 passes through the sealing disc 65 and drives the drum 62 to rotate through the connecting frame 63. Due to the centrifugal force, the stone will rotate along the drum 62. Since the device is designed to be tilted to the left except for the belt conveyor 14, the stone will rotate in a spiral motion along the drum 62. At the same time, the spraying mechanism 8 sprays water into the drum 62. The drum 62 drives the stone to rotate in a spiral motion, which helps to effectively throw off impurities and dirt from the surface of the stone while it is moving, thus improving the cleaning effect. The impurities and dirt are discharged through the drain hole on the outside of the drum 62.

[0030] The lower end of the box 1 is provided with a drain port corresponding to the position of the roller 62. A drain box 4 is installed at the lower end of the box 1, and a drain pipe 5 is installed at the lower end of the drain box 4. Impurities and soil discharged from the drain hole fall into the drain box 4 through the drain port, and are then discharged through the drain pipe 5, which facilitates centralized collection and treatment by the staff.

[0031] A transmission mechanism 7 is connected to the outer side of the tumbling washing mechanism 6, and a spray washing mechanism 8 is connected to the outer side of the transmission mechanism 7. The transmission mechanism 7 includes a transmission shaft 71 that is rotatably connected to the right side of the inner cavity of the housing 1. A first pulley 72 is installed at the output end of the drive motor 61. A second pulley 73 and a third pulley 75 are installed on the outer side of the transmission shaft 71. A first belt 74 is sleeved between the first pulley 72 and the second pulley 73. A fourth pulley 76 is installed on the outer side of the fixed tube 86. A second belt 77 is sleeved between the third pulley 75 and the fourth pulley 76.

[0032] When the drive motor 61 of the tumbling washing mechanism 6 rotates, the output end of the drive motor 61 drives the first pulley 72 to rotate. The first pulley 72 drives the second pulley 73 to rotate synchronously through the first belt 74. The second pulley 73 drives the transmission shaft 71 and the third pulley 75 on its outer side to rotate. The third pulley 75 drives the fourth pulley 76 and the fixed pipe 86 of the spray washing mechanism 8 to rotate through the second belt 77. In turn, the fixed pipe 86 drives the entire spray washing mechanism 8 to rotate synchronously. Thus, the spray washing mechanism 8 performs 360-degree rotation and water spraying to clean the stones rolling inside the drum 62, increasing the spraying range and effectively improving the cleaning effect.

[0033] One end of the spray washing mechanism 8 is inserted into the inner cavity of the roller washing mechanism 6. The spray washing mechanism 8 includes a circular shell 81 inserted into the inner cavity of the roller 62. A first sealing ring 88 is integrally connected to the outer side of the circular shell 81. Three sets of water spray pipes 84 are installed on the right side of the circular shell 81. Several nozzles 85 are installed on the outer side of the water spray pipes 84. The nozzles 85 are arranged in a spiral shape. A displacement assembly is connected to the left side of the circular shell 81. A fixed pipe 86 is connected to the left end of the displacement assembly. A water pipe 87 is rotatably connected to the left end of the fixed pipe 86. One end of the water pipe 87 passes through the housing 1 and extends to the outside. The fixed pipe 86 is connected to the transmission mechanism 7. The displacement assembly includes an inner pipe 82 connected to the circular shell 81. The outer side of the inner pipe 82 is movable. An outer tube 83 is connected to an inner tube 82, one end of which is connected to a pressure plate 812. A second sealing ring 810 matching the outer diameter of the inner tube 82 is installed in the inner cavity of the outer tube 83. The second sealing ring 810 is movably sleeved with the inner tube 82. A spring 811 is connected to the left side of the second sealing ring 810. The left end of the spring 811 is connected to the pressure plate 812. A through hole 813 is provided in the middle of the pressure plate 812. The through hole 813 is conical. A slider 814 is symmetrically connected to the outer side of the pressure plate 812. A sliding groove 815 symmetrically provided in the inner cavity of the outer tube 83 is slidably connected to it. The outer tube 83 is connected to a fixed tube 86. A vertical plate 11 is installed in the inner cavity of the housing 1. The vertical plate 11 is rotatably connected to the drive shaft 71 and the outer tube 83.

[0034] The lower end of the housing 1 is provided with a discharge port, and the lower end of the housing 1 is connected to a discharge cover 12 corresponding to the position of the discharge port. The belt conveyor 14 is located below the discharge cover 12.

[0035] High-pressure water is supplied from external water pipe 87 to fixed pipe 86, and then enters outer pipe 83 through fixed pipe 86. Due to the high water pressure, the water enters outer pipe 83 and impacts pressure plate 812. At the same time, some water enters the right side of pressure plate 812 through the conical through hole 813 on the outside of pressure plate 812. Subsequently, pressure plate 812 compresses spring 811. Simultaneously, pressure plate 812 drives the second sealing ring 810 and inner pipe 82 to move to the right, and the slider 814 on the outside of pressure plate 812... The inner cavity of the chute 815 is limited to move, allowing the pressure plate 812 to drive the circular shell 81 to move stably toward a support plate 9 via the inner tube 82, until a portion of the circular shell 81 is inserted into the inner cavity of the roller 62. Simultaneously, the first sealing ring 88 on the outer side of the circular shell 81 comes into contact with the outer side of the support plate 9. At the same time, high-pressure water enters the inner tube 82, is then transported to the circular shell 81, and finally discharged through three sets of spray pipes 84, and then sprayed out through several spirally arranged nozzles 85. This design allows water to be discharged simultaneously from multiple angles in each spray pipe 84, facilitating water spraying and cleaning of stones from different directions. This effectively improves the efficiency of cleaning impurities and dirt. When the transmission mechanism 7 drives the fixed pipe 86 to rotate, the vertical plate 11 provides effective rotational support for the outer pipe 83, ensuring stable rotation of the entire spraying mechanism 8. After the stones in the inner cavity of the drum 62 are cleaned, the external high-pressure water supply is shut off, causing the compressed spring 811 to rebound and reset. This causes one end of the spring 811 to move the pressure plate 812, which in turn moves the second sealing ring 810, the inner pipe 82, the round shell 81, and the spray pipes back to their original positions. This causes the round shell 81 to move away from the drum 62 and the support plate 9, allowing the stones in the inner cavity of the drum 62 to be discharged as the drum 62 continues to rotate. The stones then fall between the vertical plate and the support plate 9, are discharged through the discharge hood 12, and finally fall onto the belt conveyor 14 for transport.

[0036] Working Principle: This utility model is connected to the drive motor 61 and belt conveyor 14 via an external controller. During operation, the drive motor 61 and belt conveyor 14 are started, simultaneously activating the external high-pressure water conveying equipment. Material is quantitatively fed into the drum 62 through the feeding pipe 3. Simultaneously, high-pressure water is transported from the water pipe 87 to the fixed pipe 86, and then through the fixed pipe 86 into the outer pipe 83. Due to the high water pressure, the water impacts the pressure plate 812 in the outer pipe 83. At the same time, some water enters the right side of the pressure plate 812 through the conical through-hole 813 on its outer side. The pressure plate 812 then compresses the spring 811, and simultaneously, the pressure plate 812 drives the second sealing ring 810 and the inner pipe 82 to move to the right. The slider 814 on the outer side of the 12 moves within the inner cavity of the groove 815, allowing the pressure plate 812 to drive the round shell 81 to move stably toward a support plate 9 via the inner tube 82, until a portion of the round shell 81 is inserted into the inner cavity of the roller 62. Simultaneously, the first sealing ring 88 on the outer side of the round shell 81 abuts against the outer side of the support plate 9. At the same time, high-pressure water enters the inner tube 82 and is subsequently delivered to the round shell 81, finally being discharged into the three sets of spray pipes 84. The output of the drive motor 61 drives the fixed shaft 64 to rotate. The fixed shaft 64 passes through the sealing plate 65 and, through the connecting frame 63, drives the roller 62 to rotate. Due to centrifugal force, the stone material will adhere to the rotating motion of the roller 62. This device, except for the belt conveyor 14, is tilted 5° to the left. The design allows the stones to adhere to the roller 62 in a spiral rotation. Simultaneously, several spirally arranged nozzles 85 spray water, allowing water from each spray pipe 84 to be discharged from multiple angles at the same time. This facilitates water spraying and cleaning of stones from different directions, effectively improving the efficiency of cleaning impurities and dirt. At the same time, the roller 62 drives the stones in a spiral rotation, effectively dislodging surface impurities and dirt, further enhancing the cleaning effect. The impurities and dirt are discharged through the drain hole on the outside of the roller 62. Simultaneously, the output of the drive motor 61 drives the first pulley 72 to rotate. The first pulley 72, through the first belt 74, synchronously drives the second pulley 73 to rotate. The second pulley 73, in turn, drives the drive shaft 71 and its outer side... The third pulley 75 rotates, and the third pulley 75 drives the fourth pulley 76 and the fixed pipe 86 of the spraying mechanism 8 to rotate via the second belt 77. The fixed pipe 86 then drives the entire spraying mechanism 8 to rotate synchronously. The spraying mechanism 8 then performs a 360-degree rotational water spray cleaning on the stones rolling inside the drum 62, increasing the spray range and effectively improving the cleaning effect. After the stones inside the drum 62 are cleaned, the external high-pressure water supply is shut off, causing the compressed spring 811 to rebound and reset. One end of the spring 811 then drives the pressure plate 812 to move, which in turn drives the second sealing ring 810, the inner pipe 82, the round shell 81, and the water spray pipe to reset and move, ultimately moving the round shell 81 away from the drum 62 and the support plate 9.As the drum 62 continues to rotate, the stones inside are discharged from its cavity. The stones then fall between the vertical plate and a support plate 9, are discharged through the discharge hood 12, and finally fall onto the belt conveyor 14 for transport.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cleaning conveyor for asphaltic aggregates, characterized in that, The utility model provides a kind of rolling washing mechanism and spraying washing mechanism, including box (1) and belt conveyor (14), the lower end of the box (1) is uniformly equipped with support leg (2), the lower end of the box (1) is equipped with discharge port, the lower end of the box (1) is connected with the discharge cover (12) corresponding to discharge port position, the belt conveyor (14) is arranged below discharge cover (12), the inner chamber of the box (1) is equipped with two support plates (9), and the rolling washing mechanism (6) is rotatably connected between the two support plates (9), the outer side of the rolling washing mechanism (6) is drivingly connected with transmission mechanism (7), the outer side of the transmission mechanism (7) is drivingly connected with the spray washing mechanism (8), one end of the spray washing mechanism (8) is inserted into the inner chamber of the rolling washing mechanism (6); The rolling washing mechanism (6) includes a roller (62) rotatably mounted between the two support plates (9), a drive motor (61) is mounted on the right side of the inner chamber of the box (1), a plurality of dirt discharge holes are provided on the outer side of the roller (62), a connecting frame (63) is mounted on the right side of the inner chamber of the roller (62), a fixed shaft (64) is connected to the right side of the connecting frame (63), and the fixed shaft (64) is connected to the output end of the drive motor (61). The spray washing mechanism (8) includes a circular shell (81) inserted into the inner chamber of the roller (62), a first sealing ring (88) is integrally connected to the outer side of the circular shell (81), three groups of water spray pipes (84) are mounted on the right side of the circular shell (81), a displacement assembly is connected to the left side of the circular shell (81), a fixed tube (86) is connected to the left end of the displacement assembly, a water pipe (87) is rotatably connected to the left end of the fixed tube (86), one end of the water pipe (87) penetrates through the box (1) and extends to the outside, and the fixed tube (86) is drivingly connected to the transmission mechanism (7).

2. An asphalt aggregate cleaning and conveying apparatus as defined in claim 1 wherein, The inner chamber of the roller (62) is rotatably connected to a sealing disc (65), and the outer side of the sealing disc (65) is connected to a feeding pipe (3), the upper end of the feeding pipe (3) penetrates through the box (1) and extends above the box (1).

3. A belt cleaning and transfer device for asphaltic aggregates as defined in claim 1, wherein, The transmission mechanism (7) includes a transmission shaft (71) rotatably connected to the right side of the inner chamber of the box (1), a first belt pulley (72) is mounted on the output end of the drive motor (61), a second belt pulley (73) and a third belt pulley (75) are mounted on the outer side of the transmission shaft (71), a first belt (74) is sleeved between the first belt pulley (72) and the second belt pulley (73), a fourth belt pulley (76) is mounted on the outer side of the fixed tube (86), and a second belt (77) is sleeved between the third belt pulley (75) and the fourth belt pulley (76).

4. A bituminous aggregate washing and conveying apparatus according to claim 3, wherein The displacement assembly comprises an inner tube (82) connected with the round shell (81), an outer tube (83) movably sleeved outside the inner tube (82), a pressure disc (812) connected with one end of the inner tube (82), a second sealing ring (810) installed in the inner cavity of the outer tube (83) and matched with the outer diameter of the inner tube (82), the second sealing ring (810) movably sleeved between the inner tube (82), a spring (811) connected with the left side of the second sealing ring (810), the left end of the spring (811) connected with the pressure disc (812), a through hole (813) arranged in the middle of the pressure disc (812), the through hole (813) in a conical shape, a sliding block (814) symmetrically connected with the outside of the pressure disc (812), and a sliding groove (815) symmetrically arranged in the inner cavity of the outer tube (83) and slidably connected with the outer tube (83), and the outer tube (83) connected with the fixed tube (86).

5. The asphalt aggregate cleaning and conveying apparatus of claim 1 wherein, The outer side of the water spraying pipe (84) is installed with several spray heads (85), and the installation angle of the spray heads (85) is arranged in a spiral shape.

6. A bituminous aggregate washing and conveying apparatus according to claim 4, wherein The inner cavity of the box body (1) is installed with a vertical plate (11), and the vertical plate (11) is rotationally connected with the transmission shaft (71) and the outer tube (83).

7. A bituminous aggregate washing and conveying apparatus according to claim 1, wherein The lower end of the box body (1) is provided with a blowdown port corresponding to the position of the roller (62), the lower end of the box body (1) is installed with a blowdown tank (4), and the lower end of the blowdown tank (4) is installed with a blowdown pipe (5).

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