Cold-mix cold-laid asphalt mixture construction device

Abstract

This invention discloses a cold-mix cold-lay asphalt mixture construction device, relating to the field of road construction technology, including a feeding component and a pre-compaction component. The feeding component includes a storage component, a feeding bin, a mixing component, a feeding roller, a discharge bin, a scraper, and multiple sets of feeding blades. The pre-compaction component includes an initial compaction unit. The asphalt mixture enters the feeding bin under the push of the mixing component, preventing segregation of the asphalt mixture during transportation. After entering the feeding bin, the asphalt mixture is conveyed towards the discharge bin by the feeding blades, maintaining the flow and mixing of the asphalt mixture. After entering the discharge bin, the asphalt mixture is initially compacted by compression and discharged from the discharge bin. The initial compaction unit further compacts the asphalt mixture. During the cold-mix cold-lay asphalt mixture process, the device ensures the transportation and supply of the asphalt mixture, preventing segregation or blockage during transportation, thereby ensuring uniformity of the paving. The device also forms a uniform and dense paving surface through pre-compaction and initial compaction of the asphalt mixture.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, specifically to a cold-mix asphalt mixture construction device. Background Technology

[0002] Asphalt pavement has advantages such as good road performance, fast construction speed, and convenient maintenance, making it the main paving form for highways and urban roads. To extend the service life of asphalt pavement, preventative maintenance is becoming increasingly important. Currently, commonly used preventative maintenance technologies include hot-mix thin-layer technology. With the advancement of material technology and the development trend of low-carbon and environmentally friendly practices, cold-mix cold-lay thin-layer technology has become a popular research direction in preventative maintenance in recent years. Because cold-mix cold-lay mixtures use high-viscosity, high-elasticity modified emulsified asphalt and specific gradation, their material characteristics differ significantly from micro-surfacing slurry mixtures. This leads to insufficient mixing, conveying, and distribution capacity for cold-mix mixtures with high viscosity (especially when the mixture is relatively dry or the aggregate particle size is slightly large), easily resulting in segregation or uneven distribution, and failing to form a uniform and dense paved surface. Summary of the Invention

[0003] The main objective of this invention is to provide a cold-mix asphalt mixture construction device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides a cold-mix asphalt mixture construction device, comprising: A feeding assembly includes a storage unit and a feeding bin connected to the storage unit; the storage unit contains a mixing component; the feeding bin contains a rotating feeding roller, and the feeding bin has a discharge bin with decreasing internal height; the feeding bin contains a scraper that is clearance-fitted with the feeding roller; the feeding roller has multiple sets of feeding blades spaced apart and movable, and the feeding roller contains a pulling component connected to the feeding blades; a feeding channel is provided between the feeding roller and the feeding bin; the mixing component rotates under external force to transport the material in the storage unit to the feeding bin; the feeding roller rotates under external force to move the material along the feeding channel into the discharge bin for discharge; the pulling component moves towards or away from the axis of the feeding roller under external force to retract or extend the feeding blades from the feeding roller; The pre-compaction component includes a primary compactor rotatably mounted at the discharge hopper and an adjusting component connected to the primary compactor. The plane at the bottom of the primary compactor is lower than the plane at the top of the discharge hopper outlet. A cleaning plate is slidably mounted on the outer wall of the primary compactor. The adjusting component moves up or down under external force to adjust the distance between the bottom of the primary compactor and the top of the discharge hopper outlet.

[0005] As a further improvement of the present invention, the storage component includes a storage bin with an increasing inner diameter and a mixing bin connected to the storage bin; the storage bin is located above the mixing bin; the mixing bin is connected to the feeding bin.

[0006] As a further improvement of the present invention, the mixing component includes a mixing roller rotatably disposed in the mixing chamber and mixing blades spaced apart on the mixing roller; the mixing blades are in clearance fit with the inner wall of the mixing chamber.

[0007] As a further improvement of the present invention, the feeding bin is provided with a feeding chamber; the feeding roller is rotatably located inside the feeding bin and connected to the mixing roller; the feeding blade is clearance-fitted with the inner wall of the feeding chamber.

[0008] As a further improvement of the present invention, the feeding roller is provided with a sliding cavity; one end of the feeding blade is slidably located in the sliding cavity; the pulling member includes a lifting arc plate disposed on the outer wall of the feeding bin and a lifting roller rotatably located on the feeding blade; the thickness of the lifting arc plate increases progressively; a telescopic spring is provided between the feeding blade and the feeding roller; the lifting roller slides against the lifting arc plate to retract the feeding blade into the sliding cavity.

[0009] As a further improvement of the present invention, the scraping component includes a scraping protrusion disposed above the discharge bin; the scraping protrusion is installed on the inner wall of the feeding chamber, and a transition arc plate is provided between the scraping protrusion and the feeding chamber.

[0010] As a further improvement of the present invention, the discharge bin includes a discharge bottom groove connected to the feeding bin and a discharge top plate slidably disposed in the discharge bottom groove; the discharge bottom groove is provided with a discharge channel communicating with the feeding chamber; the discharge top plate is inclinedly disposed in the discharge bottom groove so that the height of the discharge bottom groove decreases from one end near the feeding chamber to one end near the initial pressing component.

[0011] As a further improvement of the present invention, the discharge top plate is provided with a baffle that is slidably connected to the outer wall of the feeding bin; the baffle is provided with an adjustment groove; the outer wall of the feeding bin is provided with an adjustment stud; the adjustment stud passes through the adjustment groove and is connected to a fixing bolt.

[0012] As a further improvement of the present invention, it also includes a frame; the adjusting member includes an adjusting rod disposed on the roller frame; one end of the adjusting rod passes through the frame and is provided with an adjusting sleeve; the cleaning plate is mounted on the roller frame and is slidably connected to the initial pressure roller.

[0013] The beneficial effects of this invention are reflected in: After premixing, the asphalt mixture is stored in a storage container and then pushed into the feeding hopper by the mixing unit. The mixing unit further mixes and conveys the asphalt mixture, preventing segregation during transport and avoiding blockage of the storage container by high-viscosity cold-mixed asphalt. Once in the feeding hopper, the asphalt mixture is conveyed towards the discharge hopper by the feeding blades, maintaining its flow and mixing. A scraper removes asphalt adhering to the feeding rollers, ensuring proper mixing between the feeding rollers and blades within the feeding hopper. The asphalt mixture has a high conveying capacity, while preventing the asphalt mixture from clogging the feeding bin. After the asphalt mixture enters the discharge bin, it is initially compacted by compression and discharged from the discharge bin. Then, the asphalt mixture is compacted again by the initial compaction unit. The asphalt mixture is mixed and conveyed by the mixing unit and the feeding blade. In the process of cold mixing and cold paving asphalt mixture, the conveying and supply of asphalt mixture is guaranteed, and the asphalt mixture is prevented from segregating or clogging during the conveying process. This ensures the uniformity of the material distribution, and a uniform and dense paving surface is formed by the pre-compaction and initial compaction of the asphalt mixture. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a cold-mix asphalt mixture construction device according to the present invention; Figure 2 This is a schematic diagram of the material discharge bin installation structure of a cold-mix asphalt mixture construction device according to the present invention; Figure 3 This is a schematic diagram of the internal structure of the storage component of a cold-mix asphalt mixture construction device according to the present invention; Figure 4 This is a schematic diagram of the internal structure of the feeding hopper of a cold-mix asphalt mixture construction device according to the present invention; Figure 5 This is a schematic diagram of the pulling component structure of a cold-mix asphalt mixture construction device according to the present invention; Figure 6 This is a schematic diagram of the initial compaction component structure of a cold-mix asphalt mixture construction device according to the present invention; Explanation of reference numerals in the attached figures: 1. Storage component; 101. Storage bin; 102. Mixing bin; 2. Feeding bin; 3. Mixing component; 301. Mixing roller; 302. Mixing blade; 4. Feeding roller; 5. Discharge bin; 501. Discharge trough; 502. Discharge top plate; 503. Discharge channel; 504. Baffle; 505. Adjusting groove; 506. Adjusting stud; 507. Fixing bolt; 6. Scraper component; 601. Scraper protrusion; 602. Transition arc plate; 7. Feeding blade; 8. Pulling component; 801. Lifting arc plate; 802. Lifting... 9. Lifting roller; 10. Feeding channel; 11. Initial pressing component; 12. Initial pressing roller; 13. Roller frame; 14. Adjusting component; 15. Adjusting rod; 16. Adjusting sleeve; 17. Cleaning plate; 18. Drive motor; 19. Transmission sprocket; 20. Transmission chain; 11. Feeding chamber; 22. Sliding chamber; 23. Telescopic spring; 24. Slide groove; 25. Support shaft; 26. Nozzle; 27. Frame; 28. Traveling wheel; 29. ​​Conveying pump; 20. Telescopic rod; 21. Support plate; 22. Locking sleeve. Detailed Implementation To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this invention. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0015] In one embodiment, see Figure 1 The present invention provides a cold-mix asphalt mixture construction device, comprising a feeding component and a pre-compaction component.

[0016] The feeding assembly includes a storage unit 1 and a feeding bin 2 connected to the storage unit 1. The storage unit 1 contains a mixing component 3. The feeding bin 2 contains a rotating feeding roller 4, and a discharge bin 5 with decreasing internal height. The feeding bin 2 also contains a scraper 6 that is clearance-fitted with the feeding roller 4. The feeding roller 4 has multiple sets of feeding blades 7 spaced apart and movable. The feeding roller 4 contains a pulling component 8 connected to the feeding blades 7. A feeding channel 9 is provided between the feeding roller 4 and the feeding bin 2. The mixing component 3 rotates under external force to transport the material from the storage unit 1 to the feeding bin 2. The feeding roller 4 rotates under external force... The material is rotated to move along the feeding channel 9 into the discharge bin 5 for discharge; the pulling member 8 moves toward or away from the axis of the feeding roller 4 under the action of external force, so that the feeding blade 7 retracts or extends out of the feeding roller 4; the pre-compaction assembly rotation includes a primary compaction member 10 set at the discharge bin 5 and an adjusting member 11 connected to the primary compaction member 10. The plane where the bottom end of the primary compaction member 10 is located is lower than the plane where the upper end face of the discharge bin 5 outlet is located. A cleaning plate 12 is slidably provided on the outer wall of the primary compaction member 10; the adjusting member 11 moves up or down under the action of external force to adjust the distance between the bottom end of the primary compaction member 10 and the upper end face of the discharge bin 5 outlet.

[0017] In this embodiment, see Figure 1 , 2 3. The asphalt mixture is pre-mixed by an external mixing mechanism and then sent into the storage unit 1. The storage unit 1 includes a storage bin 101 with increasing inner diameter and a mixing bin 102 connected to the storage bin 101. The storage bin 101 is located above the mixing bin 102, and the mixing bin 102 is connected to the feeding bin 2.

[0018] Preferably, the storage silo 101 is a trapezoidal structure with a hollow interior and open ends. The small end of the storage silo 101 is connected to the mixing silo 102. The mixing silo 102 is a cylinder with a central interior. The top and bottom ends of the mixing silo 102 are respectively provided with feeding silos. The mixing silo 102 is located at the bottom end of the storage silo 101.

[0019] Further, see Figure 3 The mixing component 3 includes a mixing roller 301 rotatably disposed in the mixing chamber 102 and mixing blades 302 spaced apart on the mixing roller 301, with the mixing blades 302 having a clearance fit with the inner wall of the mixing chamber 102.

[0020] Preferably, bearings are installed at both ends of the mixing bin 102 and bearing end caps are installed simultaneously to seal it. The mixing roller 301 is connected to the bearings. One end of the mixing roller 301 is located outside the mixing bin 102 and is connected through the drive motor 13, the transmission chain 15, the wheel 14, and the transmission chain 15. When the drive motor 13 rotates, it drives the mixing roller 301 and the mixing blade 302 to rotate, thereby mixing the asphalt mixture in the storage bin 101 and the mixing bin 102. At the same time, it pushes the asphalt mixture from the mixing bin 102 into the feeding bin 2, avoiding the asphalt mixture from clogging in the storage bin 101 and the mixing bin 102.

[0021] In this embodiment, see Figure 4 The feeding bin 2 is provided with a feeding chamber 16. The feeding roller 4 rotates and is located in the feeding bin 2 and is connected to the mixing roller 301. The feeding blade 7 is fitted with the inner wall of the feeding chamber 16 with a clearance.

[0022] Preferably, the feeding hopper 2 is a hollow cylindrical structure, and the top of the feeding hopper 2 is connected to the bottom of the mixing hopper 102.

[0023] Preferably, a bearing is installed on the inner wall of the feeding roller and a shaft seal is installed simultaneously. The feeding roller 4 is connected to the bearing. One end of the feeding roller 4 is located outside the feeding bin 2 and a sprocket is installed. A sprocket is installed simultaneously on the mixing roller 301. A transmission chain 15 is installed on the sprockets on the feeding roller 4 and the mixing roller 301, so that the driving force generated by the rotation of the drive motor 13 is transmitted to the mixing roller 301 and the feeding roller 4 through two sets of transmission chains 15, thereby driving the mixing roller 301 and the feeding roller 4 to rotate.

[0024] In this embodiment, see Figure 4 , 5 The feeding roller 4 has a sliding cavity 17 inside, and one end of the feeding blade 7 is slidably located in the sliding cavity 17. The pulling member 8 includes a lifting arc plate 801 set on the outer wall of the feeding bin 2 and a lifting roller 802 rotatably located on the feeding blade 7. The thickness of the lifting arc plate 801 increases. A telescopic spring 18 is provided between the feeding blade 7 and the lifting roller 802. The lifting roller 802 slides against the lifting arc plate 801 so that the feeding blade 7 retracts into the sliding cavity 17.

[0025] Preferably, the feeding roller 4 is a hollow cylinder with open ends, and multiple sets of sliding grooves 19 are provided radially on the outer wall of the feeding roller 4, and the feeding blade 7 slides within the sliding grooves 19.

[0026] Preferably, the two ends of the feeding blade 7 are respectively provided with support shafts 20 extending beyond the two ends of the feeding roller 4, and lifting rollers 802 are installed on the support shafts 20; the lifting arc plate 801 is located on the outer periphery of the feeding roller 4 and is coaxially arranged with the feeding roller 4. The starting end of the lifting arc plate 801 is located directly above the connection between the feeding bin 2 and the discharge bin 5. During the process of the feeding roller 4 rotating synchronously driving the feeding blade 7 to rotate, the feeding blade 7 pushes the material in the feeding chamber 16 into the discharge bin 5. The lifting rollers 802 rotate accordingly until they abut against the lifting arc plate 801. As the feeding roller 4 rotates, the lifting rollers 802 move along the lifting arc plate 801. 1. Movement: As the thickness of the lifting arc plate 801 increases, the feeding blade 7 is pushed along the chute 19 toward the sliding cavity 17, and finally retracts into the sliding cavity 17. The end of the feeding blade 7 is located in the chute 19 and remains flush. The telescopic spring 18 is stretched. After the feeding blade 7 retracts, the feeding roller 4 rotates and reaches the scraper 6. The scraper 6 scrapes off the asphalt mixture adhering to the outer wall of the feeding roller 4. As the feeding roller 4 rotates, the roller disengages from the lifting arc plate 801. The telescopic spring 18 retracts, causing the feeding blade 7 to extend out of the sliding cavity 17 and push the material in the feeding cavity 16 toward the discharge bin 5 again.

[0027] Further, see Figure 4 The scraper 6 includes a scraper protrusion 601 disposed above the discharge bin 5. The scraper protrusion 601 is installed on the inner wall of the feeding chamber 16, and a transition arc plate 602 is provided between the scraper protrusion 601 and the feeding chamber 16.

[0028] Preferably, the scraper convex plate 601 and the transition arc plate 602 are integrally formed. After the feeding roller 4 rotates and the feeding blade 7 retracts into the sliding cavity 17, the scraper convex plate 601 scrapes off the asphalt mixture on the outer wall of the feeding roller 4. Since the scraper convex plate 601 is located above the discharge bin 5, the scraped asphalt mixture is discharged from the discharge bin 5. The thickest end of the lifting arc plate 801 is on the same plane as the scraper convex plate 601. After the lifting roller 802 disengages from the lifting arc plate 801, the telescopic spring 18 drives the feeding blade 7 to extend out of the slide groove 19 and into the feeding cavity 16. When the feeding blade 7 just extends, it abuts against the transition arc plate 602 and slides along the transition arc plate 602. The end of the feeding blade 7 is designed to be arc-shaped to prevent the feeding blade 7 from getting stuck at the scraper convex plate 601 when it extends or retracts.

[0029] In this embodiment, see Figure 2 The discharge bin 5 includes a discharge bottom trough 501 connected to the feeding bin 2 and a discharge top plate 502 slidably disposed in the discharge bottom trough 501. The discharge bottom trough 501 is provided with a discharge channel 503 communicating with the feeding chamber 16. The discharge top plate 502 is inclinedly disposed in the discharge bottom trough 501 so that the height of the discharge bottom trough 501 decreases from one end near the feeding chamber 16 to one end near the initial pressing member 10.

[0030] Preferably, the discharge trough 501 is a hollow rectangular body with openings at both ends, and the top opening of the discharge trough 501 is used to install the discharge top plate 502.

[0031] Preferably, the discharge top plate 502 is provided with a baffle 504 that is slidably connected to the outer wall of the feeding bin 2. The baffle 504 is provided with an adjustment groove 505. The outer wall of the feeding bin 2 is provided with an adjustment stud 506. The adjustment stud 506 passes through the adjustment groove 505 and is connected to a fixing bolt 507. When the baffle 504 is pushed up or down, the discharge top plate 502 can be driven to move up or down within the discharge channel 503, thereby adjusting the height of the discharge channel 503. The position is fixed by locking bolts. The two ends of 2 are fitted with the two sides of the discharge bottom trough 501 with a clearance. When the feeding roller 4 drives the feeding blade 7 to push the asphalt mixture into the discharge bin 5, as the height of the discharge channel 503 decreases, the asphalt mixture is squeezed out and falls onto the road surface. The asphalt mixture is pre-pressed by the discharge top plate 502 and then laid on the road surface. The height of the discharge channel 503 can be adjusted by adjusting the height of the discharge top plate 502, thereby adjusting the pre-applied compressive force on the asphalt mixture and adjusting the asphalt material discharge paving thickness.

[0032] In this embodiment, see Figure 1 , 6 After being pre-compressed, the asphalt mixture discharged from the discharge bin 5 is then initially compacted and leveled by the initial compaction component 10 at the outlet end of the discharge bin 5. The initial compaction component 10 includes an initial compaction roller 1001 rotatably mounted at the outlet end of the discharge bin 5 and a roller frame 1002 connected to the initial compaction roller 1001. The roller frame 1002 is provided with nozzles 21 facing the initial compaction roller 1001.

[0033] It should be noted that the entire construction device also includes a frame 22, a traveling wheel 23 rotatably mounted on the frame 22, a feeding bin 2 bolted to the top of the frame 22, a discharge bin 5 penetrating the frame 22 near the road surface, a roller frame 1002 bolted to the bottom of the frame 22, and a nozzle 21 connected to a delivery pump 24 mounted on the frame 22 via a pipeline. The delivery pump 24 pumps grease and sprays it onto the primary pressure roller 1001 through the nozzle 21 to reduce the adhesion between the primary pressure roller 1001 and the asphalt mixture.

[0034] Further, see Figure 6 The adjusting component 11 includes an adjusting rod 1101 disposed on the roller frame 1002. One end of the adjusting rod 1101 passes through the frame 22 and is provided with an adjusting sleeve 1102. The cleaning plate 12 is installed on the roller frame 1002 and is slidably connected to the initial pressure roller 1001.

[0035] Preferably, two sets of telescopic rods 25 are spaced apart on the roller frame 1002. One end of the telescopic rod 25 is fixedly connected to the bottom end of the frame 22. The frame 22 is provided with a support plate 26. The adjusting rod 1101 is a screw, one end of which is fixedly connected to the roller frame 1002, and the other end passes through the support plate 26. The end of the adjusting rod 1101 that passes through the support plate 26 is provided with a locking sleeve 27. The adjusting sleeve 1102 and the locking sleeve 27 are located on the upper and lower sides of the support plate 26, respectively. By loosening the adjusting sleeve 1102 and the locking sleeve 27, the adjusting rod 1101 is moved up or down, thereby moving the roller frame 1002 and the initial pressure roller 1001 up or down. The adjusting sleeve 1102 and the locking sleeve 27 are used to lock the roller frame 1001. The distance between the bottom end of the initial pressure roller 1001 and the upper end face of the discharge bin 5 can be adjusted to control the initial pressure thickness. The locking sleeve 27 is used to thread the adjusting rod 1101 to fix the position of the adjusting rod 1101.

[0036] Preferably, the cleaning plate 12 is inclined on the roller frame 1002. During the material spreading process, the initial pressure roller 1001 rotates towards the discharge bin 5, and the cleaning plate 12 is inclined towards the discharge bin 5. The nozzle 21 is installed at the bottom of the cleaning plate 12. During the rotation of the initial pressure roller 1001, the cleaning plate 12 first scrapes off the mixture on the initial pressure roller 1001. The mixture falls along the cleaning plate 12, and the landing point is located at the outlet of the discharge bin 5, which is convenient for re-rolling. After the cleaning plate 12 scrapes off the mixture on the initial pressure roller 1001, the nozzle 21 sprays grease onto the initial pressure roller 1001.

[0037] In the construction of cold-mixed and cold-laid asphalt mixtures, the asphalt mixture, after pre-mixing, enters the storage silo 101. Driven by the drive motor 13, the mixing roller 301 drives the mixing blades 302 to rotate within the mixing silo 102. The asphalt mixture in the storage silo 101 moves downward and is pushed into the feeding silo 2 by the mixing blades 302. This maintains the mixing of the asphalt mixture while preventing its accumulation and blockage in the storage silo 101 and mixing silo 102, ensuring smooth discharge of the asphalt mixture. After the asphalt mixture enters the feeding silo 2, the feeding roller 4 is simultaneously driven by the drive motor 13 and rotates. The feeding blades 7 push the asphalt mixture towards the discharge silo 5. After being pushed, the asphalt mixture is further mixed due to the clearance between the scraper and the outer wall of the feeding roller 4. The material provides obstruction, allowing the asphalt mixture to enter the discharge bin 5 and be discharged. During the rotation of the feeding roller 4, when the feeding blade 7 approaches the discharge bin 5, the roller begins to contact the lifting arc plate 801 and moves upward along the lifting arc plate 801, thereby driving the feeding blade 7 to retract into the sliding cavity 17. When the scraper scrapes the asphalt mixture on the outer wall of the feeding roller 4, the feeding blade 7 will not cause obstruction. When the asphalt mixture moves along the discharge bin 5, due to the decreasing height of the discharge channel 503, the space inside the discharge channel 503 for the asphalt mixture to pass through becomes smaller, thereby applying force to the asphalt mixture, so that the asphalt mixture is pre-compressed and discharged from the discharge bin 5. The discharged asphalt mixture is located on the road surface and is further compacted by the following primary pressure roller 1001.

[0038] It should be noted that in this invention, the frame 22 is connected to other external machinery and is driven to move by the external machinery.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cold-mix cold-laid asphalt mixture construction apparatus, characterized by, include: The feeding assembly includes a storage unit (1) and a feeding bin (2) connected to the storage unit (1); the storage unit (1) is equipped with a mixing component (3); the feeding bin (2) is equipped with a rotating feeding roller (4), and the feeding bin (2) is equipped with a discharge bin (5) with decreasing internal height; the feeding bin (2) is equipped with a scraper (6) that is clearance-fitted with the feeding roller (4); the feeding roller (4) is equipped with multiple sets of feeding blades (7) spaced apart and movable, and the feeding roller (4) is equipped with a component connected to the feeding blades (7). A feeding channel (9) is provided between the pulling member (8), the feeding roller (4), and the feeding bin (2); the mixing member (3) rotates under the action of external force to transport the material in the storage member (1) to the feeding bin (2); the feeding roller (4) rotates under the action of external force to make the material move along the feeding channel (9) into the discharge bin (5) for discharge; the pulling member (8) moves toward or away from the axis of the feeding roller (4) under the action of external force to make the feeding blade (7) retract or extend from the feeding roller (4). The pre-compacting component includes a pre-compacting component (10) rotatably disposed at the discharge bin (5) and an adjusting component (11) connected to the pre-compacting component (10); the plane at the bottom of the pre-compacting component (10) is lower than the plane at the top of the discharge bin (5); a cleaning plate (12) is slidably disposed on the outer wall of the pre-compacting component (10); the adjusting component (11) moves up or down under the action of external force to adjust the distance between the bottom of the pre-compacting component (10) and the top of the discharge bin (5).

2. The cold-mix asphalt mixture construction device according to claim 1, characterized in that: The storage unit (1) includes a storage bin (101) with increasing inner diameter and a mixing bin (102) connected to the storage bin (101); the storage bin (101) is located above the mixing bin (102); the mixing bin (102) is connected to the feeding bin (2).

3. The cold-mix asphalt mixture construction device according to claim 2, characterized in that: The mixing component (3) includes a mixing roller (301) rotatably disposed in the mixing chamber (102) and mixing blades (302) spaced apart on the mixing roller (301); the mixing blades (302) are in clearance fit with the inner wall of the mixing chamber (102).

4. The cold-mix asphalt mixture construction device according to claim 3, characterized in that: The feeding bin (2) is provided with a feeding chamber (16); the feeding roller (4) rotates within the feeding bin (2) and is connected to the mixing roller (301); the feeding blade (7) is fitted with a clearance between itself and the inner wall of the feeding chamber (16).

5. The cold-mix asphalt mixture construction device according to claim 4, characterized in that: The feeding roller (4) has a sliding cavity (17) inside; one end of the feeding blade (7) is slidably located in the sliding cavity (17); the pulling member (8) includes a lifting arc plate (801) set on the outer wall of the feeding bin (2) and a lifting roller (802) rotatably located on the feeding blade (7); the thickness of the lifting arc plate (801) increases; a telescopic spring (18) is provided between the feeding blade (7) and the feeding roller (4); the lifting roller (802) slides against the lifting arc plate (801) so that the feeding blade (7) retracts into the sliding cavity (17).

6. The cold-mix asphalt mixture construction device according to claim 5, characterized in that: The scraper (6) includes a scraper protrusion (601) disposed above the discharge bin (5); the scraper protrusion (601) is installed on the inner wall of the feeding chamber (16), and a transition arc plate (602) is provided between the scraper protrusion (601) and the feeding chamber (16).

7. A cold-mix asphalt mixture construction device according to claim 6, characterized in that: The discharge bin (5) includes a discharge bottom trough (501) connected to the feeding bin (2) and a discharge top plate (502) slidably disposed in the discharge bottom trough (501); the discharge bottom trough (501) is provided with a discharge channel (503) communicating with the feeding chamber (16); the discharge top plate (502) is inclinedly disposed in the discharge bottom trough (501) so that the height of the discharge bottom trough (501) decreases from one end near the feeding chamber (16) to one end near the initial pressing component (10).

8. A cold-mix asphalt mixture construction device according to claim 7, characterized in that: The discharge top plate (502) is provided with a baffle (504) that is slidably connected to the outer wall of the feeding bin (2); the baffle (504) is provided with an adjustment groove (505); the outer wall of the feeding bin (2) is provided with an adjustment stud (506); the adjustment stud (506) passes through the adjustment groove (505) and is connected to a fixing bolt (507).

9. A cold-mix asphalt mixture construction device according to claim 8, characterized in that: It also includes a frame (22); the adjusting component (11) includes an adjusting rod (1101) disposed on the roller frame (1002); one end of the adjusting rod (1101) passes through the frame (22) and is provided with an adjusting sleeve (1102); the cleaning plate (12) is installed on the roller frame (1002) and is slidably connected to the primary pressure roller (1001).

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