Solid waste material paving device, paving method and application in permeable asphalt pavement

Abstract

The present invention belongs to the field of road paving devices, specifically a solid waste material paving device, a paving method and an application in a permeable asphalt pavement, comprising a frame assembly, a support assembly connected to the frame assembly, an adjustment assembly connected to the support assembly, a plurality of stirring assemblies are provided on the side of the adjustment assembly away from the support assembly, the plurality of stirring assemblies are connected to the frame assembly, and adjacent stirring assemblies conflict with each other; the frame assembly comprises a box body; the support assembly comprises a plurality of bottom plates, and adjacent bottom plates conflict with each other; the adjustment assembly comprises a U-shaped rod, a plurality of blocking plates are evenly arranged on the U-shaped rod, and limit plates are sealingly and slidably connected on both sides of the blocking plates, and two limit plates between adjacent blocking plates conflict with each other; the solid waste material paving device has adaptive feeding capability, solves the problem of easy stratification and segregation of solid waste asphalt mixture, and ensures uniform dispersion of the solid waste asphalt mixture.

Description

Technical Field

[0001] The present invention belongs to the field of pavement paving devices, and specifically relates to a solid waste material paving device, a paving method, and their application in permeable asphalt pavements. Background Art

[0002] With the rapid development of national industrialization and urbanization, the generation of solid waste has been increasing year by year, bringing great pressure to the environment. At the same time, the demand for high-quality materials in traffic infrastructure construction is also growing continuously. In this context, after transporting the prepared asphalt mixture containing solid waste materials to the construction site, it is then laid on the road surface base layer to form an asphalt pavement, realizing the effective utilization of solid waste materials.

[0003] Chinese Patent with application number CN202210785172.9 discloses a road solid waste paving control device for asphalt pavements, including a screening mechanism for screening the solid waste by size. The screening mechanism includes symmetrically arranged mounting plates, and a number of screening columns are arranged between the symmetrically arranged mounting plates. The gap between adjacent screening columns gradually increases from the feed end to the discharge end. This solid waste paving device cannot adapt to the paving of asphalt pavements with different widths, and has poor applicability.

[0004] After the asphalt mixture containing solid waste materials is transported to the road surface base layer under the action of the transportation mechanism, the spiral stirrer disperses the asphalt mixture over the entire paving width, which easily leads to a relatively dense asphalt mixture in the middle area in the width direction of the road surface, while the asphalt mixture in the two side areas is relatively scarce. This uneven distribution will directly affect the flatness of the asphalt pavement.

[0005] Moreover, during the process of the asphalt mixture being released from the transportation mechanism and falling onto the road surface base layer, due to the relatively large falling height, the air resistance received by aggregates of different particle sizes is different. The coarse aggregates are less affected by air resistance and will fall onto the road surface base layer prior to the fine aggregates. The fine aggregates, due to their lighter weight and greater influence of air resistance, will fall relatively later, resulting in the coarse aggregates being mainly distributed in the lower layer, while the fine aggregates are mainly distributed in the upper layer. This layering phenomenon will weaken the structural uniformity of the asphalt mixture, thereby affecting the bearing capacity of the road surface.

[0006] When there are unevenness such as bumps and depressions on the surface of the road surface base layer, the demand for asphalt mixture in different areas will vary. However, the existing paving devices lack the ability to adaptively adjust the feeding rate of the asphalt mixture, resulting in the supply of the mixture during the paving process not being able to match the actual demand of the base layer surface, further reducing the flatness and bearing capacity of the asphalt pavement. Summary of the Invention

[0007] In view of the above problems, the present invention provides a solid waste material spreading device, a spreading method and an application in a permeable asphalt pavement to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: A solid waste material spreading device includes a frame assembly, a support assembly is connected to the frame assembly, an adjustment assembly is connected to the support assembly, a stirring assembly is provided on one side of the adjustment assembly away from the support assembly, the stirring assembly is connected to the frame assembly, and adjacent stirring assemblies are in contact with each other;

[0009] The frame assembly includes a box body;

[0010] The support assembly includes a plurality of bottom plates, and adjacent bottom plates are in contact with each other;

[0011] The adjustment assembly includes a U-shaped rod, a plurality of blocking plates are evenly arranged on the U-shaped rod, the two sides of the blocking plate are hermetically slidably connected with limiting plates, the two limiting plates between adjacent blocking plates are in contact with each other, and one end of the limiting plate away from the U-shaped rod is fixedly connected to the bottom plate;

[0012] The stirring assembly includes a spiral stirrer.

[0013] Preferably, the frame assembly further includes a central control module, the central control module is connected to the box body, a material passing hole is provided through the inside of the box body, an L-shaped support plate is fixedly connected to the bottom of the box body, a column is fixedly connected to the L-shaped support plate, and one side of the column away from the box body is fixedly connected to the U-shaped rod.

[0014] Preferably, a feeding mechanism is provided at one end of the frame assembly away from the support assembly, gathering plates are provided on both sides of the feeding mechanism, and the extending end of the feeding mechanism is located in the material passing hole and close to the support assembly.

[0015] Preferably, hinge seats are provided on both sides of the frame assembly, the two hinge seats are fixedly connected to the input ends of hydraulic push rods, the output ends of the hydraulic push rods are connected with fixed seats, and an ironing plate is connected between the fixed seats.

[0016] Preferably, an electric push rod is provided at the bottom of the bottom plate, the bottom of the electric push rod is fixedly connected to the L-shaped support plate, a communication hole is opened on one side of the bottom plate close to the box body, a rotating shaft is rotatably connected to the inside of the communication hole, fixing plates are fixedly connected to both sides of the rotating shaft, and the bottom of the fixing plate is fixedly connected to the L-shaped support plate.

[0017] Preferably, vertical plates are fixedly connected to the tops of the two bottom plates, and the space enclosed between the vertical plates and the bottom plates forms a storage bin.

[0018] Preferably, a connecting rod is provided inside the spiral stirrer. Both ends of the connecting rod are connected with connecting plates, and one side of the connecting plate away from the connecting rod is fixedly connected with the side wall of the screed board.

[0019] The present invention also discloses a paving method for a solid waste material paving device, including the following steps:

[0020] S1. According to the width of the asphalt pavement to be paved, the central control module controls the electric push rods of the support assemblies on both sides of the paving device to start, drives the bottom plate to rotate around the rotating shaft, promotes the limiting plate to approach or move away from the U-shaped rod, and further controls the discharge range of the solid waste asphalt mixture of the adjusting assembly;

[0021] S2. Control the hydraulic push rod to start. The output end of the hydraulic push rod extends, drives the screed board and the stirring assembly to approach the adjusting assembly, and at the same time controls the hydraulic push rod to rotate around the hinge seat to make the bottom height of the screed board flush with the paving height of the asphalt pavement;

[0022] S3. Control the output ends of each group of electric push rods to shorten simultaneously, so that the bottom of the bottom plate approaches the roadbed, and the height of the bottom plate from the roadbed reaches a preset height value;

[0023] S4. The solid waste asphalt mixture is released from the feeding mechanism into the storage bin and is transferred and stored in the storage bin. The solid waste asphalt mixture falls onto the roadbed through the gap between the limiting plate and the blocking plate;

[0024] S5. The stirring assembly starts, the spiral stirrer starts to operate, drives the two groups of spiral stirring blades rotating in opposite directions to rotate synchronously, and further drives the solid waste asphalt mixture to move from the middle area of the stirring assembly to both sides. As the paving device moves, the screed board paves the solid waste asphalt mixture;

[0025] S6. Regularly judge the unevenness of the roadbed according to the rotation of the bottom plate, set the bottom of the bottom plate to contact the roadbed. When the paving device moves to the sunken area of the roadbed, the bottom plate moves along the surface path of the sunken area, drives the gap between the limiting plate and the blocking plate to increase, and at the same time increases the stirring rate of the spiral stirrer;

[0026] When the paving device moves to the raised area of the roadbed, the bottom plate moves along the surface path of the raised area, drives the gap between the limiting plate and the blocking plate to decrease, and at the same time decreases the stirring rate of the spiral stirrer.

[0027] An application of the above-mentioned solid waste material paving device in a permeable asphalt pavement.

[0028] Compared with the prior art, the beneficial effects of the present application are as follows:

[0029] 1. By setting up the mutual cooperation of components such as the support component, the adjustment component, and the stirring component, when the paving device moves to the sunken area or the raised area of the road base, it can ensure that the bottom plate always touches different areas of the road base, solving the problem that the solid waste asphalt mixture is prone to layering and segregation when it falls. By correspondingly adjusting the gap size between the limit plate and the baffle plate, the paving device can be made to have the ability of self-adaptive feeding. At the same time, by controlling the speed change of the stirring component, it can ensure that the solid waste asphalt mixture in different areas on the road base is evenly dispersed. In addition, the baffle plate continuously shears the solid waste asphalt mixture, further improving the paving uniformity of the solid waste mixture.

[0030] 2. By setting up the mutual cooperation of components such as the electric push rod, the bottom plate, and the adjustment component, when the electric push rod is started, it drives the bottom plate to rotate around the rotating shaft. The rotation of the bottom plate drives the limit plate to approach or move away from the U-shaped rod, prompting the gap between the limit plate and the baffle plate to open or close, thereby controlling the discharge range of the solid waste asphalt mixture on the adjustment component and ensuring that the paving device can adapt to the paving requirements of asphalt roads with different widths.

[0031] 3. By setting up the mutual cooperation of components such as the adjustment component and the stirring component, when the solid waste asphalt mixture falls onto the road base, the stirring component at the corresponding position is started, enabling the solid waste asphalt mixture to be evenly dispersed within the stirring range covered by each group of stirring components, thus ensuring the uniform distribution of the solid waste asphalt mixture within the paving width range of the entire road base, effectively guaranteeing the flatness and bearing capacity of the asphalt road. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the first perspective schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is the second perspective schematic diagram of the overall structure of the present invention;

[0034] Figure 3 is the front view internal three-dimensional structure schematic diagram of the present invention;

[0035] Figure 4 is Figure 3 the enlarged schematic diagram at A in

[0036] Figure 5 is the three-dimensional structure schematic diagram of the support component of the present invention;

[0037] Figure 6 is the exploded three-dimensional structure schematic diagram of the support component of the present invention;

[0038] Figure 7 is the three-dimensional structure schematic diagram of the adjustment component of the present invention;

[0039] Figure 8It is a schematic diagram of the exploded three-dimensional structure of the regulating component of the present invention;

[0040] Figure 9 It is a schematic diagram of the three-dimensional structure of the stirring assembly of the present invention.

[0041] In the figure: 1. Frame assembly; 101. Box; 102. Central control module; 103. Material hole; 104. L-shaped support plate; 105. Column; 106. Feeding mechanism; 107. Material gathering plate; 108. Articulated seat; 109. Hydraulic push rod; 110. Fixed seat; 111. Screed plate; 2. Support assembly; 201. Bottom plate; 202. Electric push rod; 203. Connecting hole; 204. Rotating shaft; 205. Fixed plate; 206. Vertical plate; 207. Storage bin; 3. Adjustment assembly; 301. Limiting plate; 302. Blocking plate; 303. U-shaped rod; 4. Stirring assembly; 401. Connecting plate; 402. Connecting rod; 403. Spiral stirrer. Specific implementation method

[0042] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1:

[0044] If Figure 1-2 As shown, a solid waste material paving device includes a frame assembly 1, a support assembly 2 is connected to the frame assembly 1, the support assembly 2 is used for transferring and storing asphalt mixture containing solid waste materials (hereinafter referred to as solid waste asphalt mixture), and an adjustment assembly 3 is connected to the support assembly 2. The frame assembly 1 transports the solid waste asphalt mixture to the support assembly 2, and the solid waste asphalt mixture in the support assembly 2 falls onto the road base through the adjustment assembly 3. A stirring assembly 4 is provided on the side of the adjustment assembly 3 away from the support assembly 2. The stirring assembly 4 is connected to the frame assembly 1, and the stirring assembly 4 evenly stirs the solid waste asphalt mixture on the road base to evenly disperse the asphalt mixture.

[0045] During the process of the solid waste asphalt mixture falling from the paving device to the road base, due to the high falling height, the coarse aggregate and the fine aggregate are easy to separate and separate. By setting the support component 2 to reduce the falling height of the solid waste asphalt mixture, as shown in Figure 2 ​As shown in the figure, the frame assembly 1 includes a central control module 102. The central control module 102 is connected to the box body 101. The central control module 102 can detect and control various electrical components inside the frame assembly 1. The frame assembly 1 includes a box body 101. A material passing hole 103 is provided through the inside of the box body 101. The setting of the material passing hole 103 facilitates the transportation of solid waste asphalt mixture to the support assembly 2. A feeding mechanism 106 is provided at one end of the frame assembly 1 away from the support assembly 2. The feeding mechanism 106 rotates to drive the transportation of the solid waste asphalt mixture. Aggregating plates 107 are connected to both sides of the feeding mechanism 106. The setting of the aggregating plates 107 prevents the solid waste asphalt mixture from overflowing from both sides. The extending end of the feeding mechanism 106 is located inside the material passing hole 103 and close to the support assembly 2, as Figures 3-6 As shown in the figure, the support assembly 2 includes a plurality of bottom plates 201. Adjacent bottom plates 201 are in contact with each other. The bottom plates 201 are inclined, and their bottoms are close to the road base. The solid waste asphalt mixture flows through the bottom plates 201 and is discharged onto the road base, effectively reducing the falling height of the solid waste asphalt mixture. Vertical plates 206 are fixedly connected to the tops of the bottom plates 201 on both sides of the paving device. The space enclosed between the vertical plates 206 and the bottom plates 201 forms a storage bin 207. The solid waste asphalt mixture enters the storage bin 207 and accumulates for transfer storage, as Figures 7-8 As shown in the figure, the adjusting assembly 3 includes a U-shaped rod 303. A plurality of blocking plates 302 are evenly arranged on the U-shaped rod 303. The setting of the U-shaped rod 303 ensures that the heights of the plurality of blocking plates 302 always remain the same. The two sides of the blocking plates 302 are hermetically and slidably connected to the limiting plates 301. The two limiting plates 301 between adjacent blocking plates 302 are in contact with each other. The end of the limiting plate 301 away from the U-shaped rod 303 is fixedly connected to the bottom plate 201. When the bottom plate 201 rotates, it can drive the limiting plate 301 to rotate synchronously. During use, the solid waste asphalt mixture in the storage bin 207 can fall onto the road base through the gap between the limiting plate 301 and the blocking plate 302. The falling height of the solid waste asphalt mixture is small, which can effectively solve the problem that the coarse and fine aggregates of the solid waste asphalt mixture are prone to stratification and segregation.

[0046] It should be noted that after the solid waste asphalt mixture enters the storage bin 207, the material level height of the solid waste asphalt mixture remains below the heights of the vertical plate 206 and the limiting plate 301, that is, the supply rate of the solid waste asphalt mixture does not exceed the transfer storage limit of the storage bin 207, ensuring the high efficiency and stability of the solid waste asphalt mixture treatment.

[0047] During the actual use of the paving device, it cannot adapt to roads with different widths. When encountering roads with width changes, the paving device needs to be frequently replaced, greatly reducing the construction efficiency. Furthermore, as Figures 3-8As shown, an L-shaped support plate 104 is fixedly connected to the bottom of the box 101, and the L-shaped support plate 104 mainly provides stable physical support for the support component 2 and the adjustment component 3. A column 105 is fixedly connected to the L-shaped support plate 104, and the side of the column 105 away from the box 101 is fixedly connected to the U-shaped rod 303. The fixed connection between the U-shaped rod 303 and the column 105 improves the stability of the adjustment component 3. An electric push rod 202 is provided at the bottom of the bottom plate 201, and the bottom of the electric push rod 202 is fixedly connected to the L-shaped support plate 104 A connecting hole 203 is provided on one side of the bottom plate 201 close to the box body 101, and a rotating shaft 204 is rotatably connected inside the connecting hole 203. Fixed plates 205 are fixedly connected on both sides of the rotating shaft 204. The electric push rod 202 is started and the output end drives the bottom plate 201 to rotate around the rotating shaft 204 and realizes the adjustment and control of the height of the bottom plate 201. The bottom of the fixed plate 205 is fixedly connected to the L-shaped support plate 104, and the fixed plate 205 is fixedly connected to the L-shaped support plate 104, which further improves the structural stability of the support assembly 2. When the width of the paved road surface changes, the central control module 102 controls the electric push rods 202 on both sides of the paving device support component 2 to start, driving the bottom plates 201 on both sides to rotate around the rotation axis 204. The rotation of the bottom plate 201 drives the limit plate 301 to approach or move away from the U-shaped rod 303, causing the gap between the limit plate 301 and the blocking plate 302 to open or close, thereby controlling the discharge range of the solid waste asphalt mixture on the adjustment component 3, ensuring that the paving device can adapt to the paving needs of asphalt roads of different widths.

[0048] It should be noted that, since the adjacent bottom plates 201 are in close contact with each other and the bottom plates 201 themselves have a certain thickness, during the process of the bottom plate 201 rotating around the rotation axis 204, its upper end surface will never be lower than the lower end surface of the adjacent bottom plate 201, and its lower end surface will never be higher than the upper end surface of the adjacent bottom plate 201, so the solid waste asphalt mixture will not leak out from the gap between the adjacent bottom plates 201.

[0049] After the solid waste asphalt mixture falls onto the road base, the existing technology cannot evenly distribute the solid waste asphalt mixture over the entire paving width, thereby affecting the flatness of the asphalt road surface. By setting multiple groups of stirring components 4 to interfere with each other, the uniformity of the solid waste asphalt mixture is increased, and then Figure 2 、 Figure 9As shown in the figure, hinge seats 108 are provided on both sides of the frame assembly 1. The two hinge seats 108 are fixedly connected to the input ends of the hydraulic push rods 109. The output ends of the hydraulic push rods 109 are connected with fixed seats 110. A screed 111 for leveling and compacting the waste asphalt mixture on the road base is connected between the fixed seats 110. The central control module 102 controls the hydraulic push rods 109 to start and the output ends to extend, driving the screed 111 and the mixing assembly 4 close to the adjusting assembly 3, and then controls the hydraulic push rods 109 to rotate around the hinge seats 108, so as to make the bottom height of the screed 111 flush with the paving height of the asphalt road surface, ensuring the smoothness and precision of the paving process; on the side of the adjusting assembly 3 far away from the supporting assembly 2, multiple groups of mixing assemblies 4 are provided. The adjacent mixing assemblies 4 are in contact with each other. The multiple groups of mixing assemblies 4 are connected to the frame assembly 1. The mixing assembly 4 includes a spiral mixer 403. A connecting rod 402 is arranged inside the spiral mixer 403. Both ends of the connecting rod 402 are connected with connecting plates 401. The side of the connecting plate 401 far away from the connecting rod 402 is fixedly connected to the side wall of the screed 111. The positions of the multiple groups of mixing assemblies 4 and the screed 111 are relatively fixed, improving the stability of the mixing assembly 4 during operation. In addition, two sets of spiral stirring blades with opposite directions are installed on the spiral mixer 403. After the waste asphalt mixture falls onto the road base, the central control module 102 controls the mixing assemblies 4 at the corresponding positions of the waste asphalt mixture to work, so that the waste asphalt mixture can be evenly dispersed within the mixing range covered by each group of mixing assemblies 4, thereby ensuring the uniform distribution of the waste asphalt mixture within the paving width range of the entire road base and effectively ensuring the flatness of the asphalt road surface.

[0050] The working principle of the present invention is as follows: first, the staff controls the cooperation between the supporting assembly 2 and the adjusting assembly 3 according to the width of the asphalt pavement to be paved, thereby ensuring that the feeding range of the solid waste asphalt mixture is consistent with the width of the asphalt pavement. Specifically, when the width of the pavement to be paved is small, the central control module 102 controls the electric push rods 202 of the supporting assemblies 2 on both sides of the paving device to start, and the output ends of the electric push rods 202 extend, thereby driving the bottom plate 201 to rotate away from the L-shaped supporting plate 104, and the bottom plate 201 drives the limiting plate 301 to move upward and gradually approach the U-shaped rod 303, causing the top of the limiting plate 301 to conflict with the U-shaped rod 303, thereby achieving complete closure of the gap between the limiting plates 301 and the blocking plates 302 on both sides, and the solid waste asphalt mixture. The material is discharged from the gap between the limit plate 301 and the blocking plate 302 in the middle of the adjustment component 3, ensuring that the paving device can adapt to the paving requirements of asphalt pavements of different widths, improving the accuracy and work efficiency of paving; similarly, when the width of the road to be paved is large, the central control module 102 controls the electric push rods 202 of the support components 2 on both sides of the paving device to start, and the output end of the electric push rod 202 is shortened, thereby driving the bottom plate 201 to rotate in the direction close to the L-shaped support plate 104, and the bottom plate 201 drives the limit plate 301 to move downward and gradually away from the U-shaped rod 303, thereby realizing the opening of the gap between the limit plates 301 and the blocking plates 302 on both sides, further ensuring that the paving device can adapt to the paving requirements of asphalt pavements of different widths, improving the accuracy and work efficiency of paving.

[0051] Secondly, the central control module 102 controls the hydraulic push rod 109 to start, and the output end of the hydraulic push rod 109 extends, driving the ironing plate 111 and the mixing component 4 to approach the adjustment component 3, and at the same time controls the hydraulic push rod 109 to rotate around the hinge seat 108, so that the bottom height of the ironing plate 111 is flush with the paving height of the asphalt road surface, thereby facilitating the subsequent mixing and leveling of the solid waste asphalt mixture. The transport vehicle loaded with the solid waste asphalt mixture slowly unloads the solid waste asphalt mixture onto the feeding mechanism 106. Under the transportation action of the feeding mechanism 106, the solid waste asphalt mixture continues to pass through the material hole 103 and is transported to the support component 2.

[0052] Then, the central control module 102 controls the output end of each group of electric push rods 202 to shorten at the same time, so that the bottom of the bottom plate 201 is close to the road base, and the height of the bottom plate 201 from the road base reaches a preset height value, and the transportation speed of the feeding mechanism 106 is set at the same time, so that the feeding speed of the solid waste asphalt mixture meets the construction requirements, and the preset height value ensures that the solid waste asphalt mixture falls at a low height. The solid waste asphalt mixture is released from the feeding mechanism 106 into the storage bin 207, and is transferred and stored in the storage bin 207. Then, the solid waste asphalt mixture falls from the gap between the limit plate 301 and the blocking plate 302 to the road base, thereby solving the problem of easy stratification and segregation of coarse aggregate and fine aggregate in the solid waste asphalt mixture.

[0053] Finally, after the solid waste asphalt mixture falls onto the road base, the solid waste asphalt mixture will gradually accumulate in the middle area of each mixing component 4. At this time, the central control module 102 controls the mixing component 4 at the corresponding position to start, and the spiral stirrer 403 begins to operate, driving the two sets of spiral stirring blades rotating in opposite directions synchronously, thereby driving the solid waste asphalt mixture to move from the middle area of the mixing component 4 to both sides, so that the solid waste asphalt mixture can be evenly dispersed within the width range covered by each mixing component 4, thus ensuring the uniform distribution of the solid waste asphalt mixture within the paving width range of the entire road base, and effectively ensuring the smoothness and bearing capacity of the asphalt pavement. As the paving device moves, the screed 111 paves the solid waste asphalt mixture, thereby completing the paving work of the solid waste asphalt mixture.

[0054] Embodiment Two:

[0055] Based on the technical solution of the above Embodiment One, since the road base of the asphalt pavement usually uses inorganic binder stabilized materials and graded crushed stone materials, after the paving operation of such materials is completed, a large number of uneven conditions often appear on their surfaces. Therefore, when there are uneven conditions on the surface of the road base, the demand for solid waste asphalt mixture in different areas of the road base also varies. The demand for solid waste asphalt mixture in the raised areas of the road base is less, and the demand for solid waste asphalt mixture in the sunken areas of the road base is greater. However, the prior art lacks the ability to adaptively adjust the feeding rate of the solid waste asphalt mixture, resulting in the inconsistency between the supply amount and the actual demand of the asphalt mixture in different areas of the road base, reducing the smoothness and bearing capacity of the asphalt pavement. Therefore, Embodiment Two is proposed to solve the above problems.

[0056] During the actual use of the paving device, according to the rotation situation of the bottom plate 201, it can determine the uneven conditions on the road base at a fixed point and adaptively adjust the feeding rate of the asphalt mixture to ensure the uniform laying of the solid waste asphalt mixture in different areas of the road base. Specifically:

[0057] First, the central control module 102 controls the output ends of each electric push rod 202 to shorten simultaneously, driving the bottom of the bottom plate 201 to abut against the road base. The bottom plate 201 drives the limiting plate 301 to rotate close to the road base, resulting in the gap between the limiting plate 301 and the blocking plate 302 being greater than the preset height value. The feeding speed of the solid waste asphalt mixture is relatively fast. The transportation speed of the feeding mechanism 106 can be reduced to make the feeding speed of the solid waste asphalt mixture meet the construction requirements. At the same time, the stirring rate of the spiral stirrer 403 is set to reach the preset rate value, thereby realizing that the solid waste asphalt mixture can be evenly dispersed within the stirring range covered by each mixing component.

[0058] Then, after the bottom of the bottom plate 201 abuts against the roadbed, control the output ends of each group of electric push rods 202 to continue to shorten. At this time, the bottom plate 201 has a tendency to rotate downward. As the paving device moves slowly, when the paving device moves to the sunken area of the roadbed, the bottom plate 201 at the sunken area gradually descends to the lowest point along the surface path of the sunken area under the dual action of the gravity of the solid waste asphalt mixture at the top and the electric push rod 202, driving the limiting plate 301 to rotate away from the U-shaped rod 303. The gap between the limiting plate 301 and the blocking plate 302 gradually increases, and the volume of the solid waste asphalt mixture flowing through the gap per unit time gradually increases, effectively filling the sunken area of the roadbed. At the same time, gradually increase the stirring rate of the screw stirrer 403, so that the screw stirring blades can evenly disperse the increased solid waste asphalt mixture, and avoid the situation where there is more solid waste asphalt mixture in the middle area of the stirring assembly 4 and less solid waste asphalt mixture in the two side areas; when the bottom plate 201 rises from the lowest point along the surface path of the sunken area to the height of the flat area of the roadbed, drive the limiting plate 301 to rotate towards the U-shaped rod 303 until the bottom plate 201 abuts against the flat area of the roadbed again. The gap between the limiting plate 301 and the blocking plate 302 gradually decreases, and at the same time, gradually reduce the stirring rate of the screw stirrer 403 to reach the preset rate value to prevent the over-stirring of the stirring assembly 4 and avoid the situation where there is less solid waste asphalt mixture in the middle area of the stirring assembly 4 and more solid waste asphalt mixture in the two side areas. At the same time, when the paving device passes through the sunken area of the roadbed, the falling height of the solid waste asphalt mixture falling from the support assembly 2 to the sunken area increases, which will cause the solid waste asphalt mixture to be stratified and segregated. However, since the bottom plate 201 always abuts against the surface path of the sunken area, the falling height of the solid waste asphalt mixture is reduced, and the problem of stratification and segregation of the solid waste asphalt mixture in the sunken area is solved.

[0059] Finally, similarly, when the paving device moves to the raised area of the road base, due to the dual action of the gravity of the solid waste asphalt mixture on the top and the electric push rod 202 on the bottom plate 201 at this raised area, this dual action cannot flatten the raised area. Therefore, the bottom plate 201 gradually rises along the surface path of the raised area to the highest point, driving the limit plate 301 to rotate towards the direction close to the U-shaped rod 303. The gap between the limit plate 301 and the blocking plate 302 gradually decreases, and the volume of the solid waste asphalt mixture flowing through this gap per unit time gradually decreases, thereby reducing the feeding of the solid waste asphalt mixture in the raised area of the road base and ensuring the uniformity of the paving of the solid waste asphalt mixture. At the same time, since the solid waste asphalt mixture in this raised area gradually decreases, the stirring rate of the screw agitator 403 is gradually reduced to prevent the over-stirring of the stirring assembly 4, which may cause the situation that there is less solid waste asphalt mixture in the middle area of the stirring assembly 4 and more solid waste asphalt mixture in the two side areas. When the bottom plate 201 descends from the highest point along the surface path of the raised area to the height of the flat area of the road base, it drives the limit plate 301 to rotate away from the U-shaped rod 303 until the bottom plate 201 touches the flat area of the road base again. The gap between the limit plate 301 and the blocking plate 302 gradually increases, and at the same time, the stirring rate of the screw agitator 403 is gradually increased to reach the preset rate value, avoiding the situation that there is more solid waste asphalt mixture in the middle area of the stirring assembly 4 and less solid waste asphalt mixture in the two side areas.

[0060] In addition, when paving the solid waste asphalt mixture, the required paving temperature is generally not lower than 135 °C. At this time, the solid waste asphalt mixture has good fluidity. However, due to the low environmental temperature, the working temperature of the solid waste asphalt mixture will quickly dissipate into the paving device and the air, resulting in poor fluidity of the solid waste asphalt mixture. The screw agitator 403 cannot evenly distribute the solid waste asphalt mixture to both sides, affecting the flatness of the road surface. However, during the slow movement of the paving device in this embodiment, the bottom plate 201 will always be in contact with the surface paths of the flat area, the sunken area and the raised area. The bottom plate 201 drives the limit plate 301 to move away from or close to the U-shaped rod 303, causing the gap between the limit plate 301 and the blocking plate 302 to continuously change. Thus, the blocking plate 302 continuously shears the solid waste asphalt mixture, increasing the fluidity of the solid waste asphalt mixture and compensating for the problem of poor fluidity caused by the decrease in the working temperature, enabling the screw agitator 403 to evenly distribute the solid waste asphalt mixture to both sides and further improving the paving uniformity of the solid waste mixture.

[0061] The solid waste material spreading device can determine the positions of depressions and protrusions on the road surface base in real time and at fixed points. When the spreading device moves to the depression area or protrusion area of the road surface base, it can prompt the bottom plate 201 to always contact different areas of the road surface base, solving the problem that the solid waste asphalt mixture is prone to layering and segregation when falling. Correspondingly, the gap size between the limiting plate 301 and the blocking plate 302 is adjusted, so as to realize that the spreading device has the ability of self-adaptive feeding. At the same time, the speed of the stirring component 4 is controlled to ensure that the solid waste asphalt mixture in different areas on the road surface base is evenly dispersed. In addition, the blocking plate 302 continuously shears the solid waste asphalt mixture, further improving the spreading uniformity of the solid waste mixture.

[0062] Among them, the above solid waste material spreading device can be used to complete its application in the permeable asphalt pavement, improving the flatness and bearing capacity of the permeable asphalt pavement.

[0063] Embodiment III:

[0064] This embodiment discloses a spreading method of a solid waste material spreading device, including the following steps:

[0065] S1. According to the width of the asphalt pavement to be spread, the central control module 102 controls the electric push rods 202 of the two-side support components 2 of the spreading device to start, driving the bottom plate 201 to rotate around the rotating shaft 204, prompting the limiting plate 301 to approach or move away from the U-shaped rod 303, and then controlling the discharge range of the solid waste asphalt mixture of the adjusting component 3;

[0066] S2. Control the hydraulic push rod 109 to start, the output end of the hydraulic push rod 109 extends, driving the ironing plate 111 and the stirring component 4 to approach the adjusting component 3. At the same time, control the hydraulic push rod 109 to rotate around the hinge seat 108, prompting the bottom height of the ironing plate 111 to be flush with the paving height of the asphalt pavement;

[0067] S3. Control the output ends of each group of electric push rods 202 to shorten simultaneously, so that the bottom of the bottom plate 201 approaches the road surface base, and the height of the bottom plate 201 from the road surface base reaches the preset height value;

[0068] S4. The solid waste asphalt mixture is released from the feeding mechanism 106 into the storage bin 207 and is stored in the storage bin 207 for transfer. The solid waste asphalt mixture falls onto the road surface base from the gap between the limiting plate 301 and the blocking plate 302;

[0069] S5. The stirring component 4 starts, the spiral stirrer 403 starts to operate, driving the two groups of spiral stirring blades rotating in opposite directions to rotate synchronously, and then driving the solid waste asphalt mixture to move from the middle area of the stirring component 4 to both sides. As the spreading device moves, the ironing plate 111 spreads the solid waste asphalt mixture;

[0070] S6. Determine the unevenness of the road base by fixing points according to the rotation of the bottom plate 201. Set the bottom of the bottom plate 201 to contact the road base. When the paving device moves to the sunken area of the road base, the bottom plate 201 moves along the surface path of the sunken area, driving the gap between the limit plate 301 and the blocking plate 302 to increase, and at the same time increasing the stirring rate of the screw agitator 403;

[0071] When the paving device moves to the raised area of the road base, the bottom plate 201 moves along the surface path of the raised area, driving the gap between the limit plate 301 and the blocking plate 302 to decrease, and at the same time decreasing the stirring rate of the screw agitator 403.

[0072] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0073] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid waste material spreading device, comprising a frame assembly (1), characterized in that: The frame assembly (1) is connected to a support assembly (2), the support assembly (2) is connected to an adjustment assembly (3), a side of the adjustment assembly (3) away from the support assembly (2) is provided with a plurality of stirring assemblies (4), the plurality of stirring assemblies (4) are connected to the frame assembly (1), and adjacent stirring assemblies (4) are in contact with each other; The frame assembly (1) comprises a box (101), the frame assembly (1) further comprising a central control module (102), the central control module (102) being connected to the box (101), a material passage hole (103) being provided through the interior of the box (101), an L-shaped support plate (104) being fixedly connected to the bottom of the box (101), a column (105) being fixedly connected to the L-shaped support plate (104), and a side of the column (105) away from the box (101) being fixedly connected to a U-shaped rod (303); The support assembly (2) comprises a plurality of bottom plates (201), adjacent bottom plates (201) are in contact with each other, an electric push rod (202) is provided at the bottom of the bottom plate (201), the bottom of the electric push rod (202) is fixedly connected to the L-shaped support plate (104), a communication hole (203) is provided on a side of the bottom plate (201) close to the box body (101), a rotation shaft (204) is rotatably connected inside the communication hole (203), fixed plates (205) are fixedly connected on both sides of the rotation shaft (204), the bottom of the fixed plate (205) is fixedly connected to the L-shaped support plate (104), vertical plates (206) are fixedly connected to the top of the bottom plates (201) on both sides, and the space enclosed between the vertical plates (206) and the bottom plate (201) forms a material storage bin (207); The adjustment assembly (3) comprises a U-shaped rod (303), a plurality of blocking plates (302) are evenly arranged on the U-shaped rod (303), both sides of the blocking plates (302) are sealingly and slidably connected to limit plates (301), two limit plates (301) between adjacent blocking plates (302) are in contact with each other, and one end of the limit plate (301) away from the U-shaped rod (303) is fixedly connected to the bottom plate (201); The stirring assembly (4) comprises a spiral stirrer (403); when the paving device moves to a concave area of ​​the road base, the bottom plate (201) moves along the surface path of the concave area, driving the gap between the limit plate (301) and the blocking plate (302) to increase, while increasing the stirring rate of the spiral stirrer (403); When the paving device moves to the raised area of ​​the road base, the bottom plate (201) moves along the surface path of the raised area, driving the gap between the limit plate (301) and the blocking plate (302) to decrease, while reducing the stirring rate of the spiral stirrer (403).

2. The solid waste material spreading device according to claim 1, characterized in that: A feeding mechanism (106) is provided on one end of the frame assembly (1) away from the support assembly (2), and material gathering plates (107) are provided on both sides of the feeding mechanism (106). An extended end of the feeding mechanism (106) is located in the material passage hole (103) and close to the support assembly (2).

3. The solid waste material spreading device according to claim 2, characterized in that: Articulated seats (108) are provided on both sides of the frame assembly (1); the two articulated seats (108) are fixedly connected to the input ends of the hydraulic push rods (109); the output ends of the hydraulic push rods (109) are connected to fixed seats (110); and ironing plates (111) are connected between the fixed seats (110).

4. The solid waste material spreading device according to claim 1, characterized in that: A connecting rod (402) is provided inside the spiral stirrer (403), and both ends of the connecting rod (402) are connected to connecting plates (401), and a side of the connecting plate (401) away from the connecting rod (402) is fixedly connected to a side wall of the ironing plate (111).

5. A paving method for the solid waste material paving device according to claim 3, characterized in that: The following steps are involved: S1. According to the width of the asphalt pavement to be paved, the central control module (102) controls the electric push rods (202) of the support components (2) on both sides of the paving device to start, driving the bottom plate (201) to rotate around the rotation axis (204), causing the limit plate (301) to approach or move away from the U-shaped rod (303), thereby controlling the discharge range of the solid waste asphalt mixture of the adjustment component (3); S2, controlling the hydraulic push rod (109) to start, so that the output end of the hydraulic push rod (109) extends, driving the ironing plate (111) and the stirring assembly (4) to approach the adjustment assembly (3), and at the same time controlling the hydraulic push rod (109) to rotate around the hinge seat (108), so that the bottom height of the ironing plate (111) is flush with the paving height of the asphalt road surface; S3, controlling the output ends of each group of electric push rods (202) to shorten simultaneously, so that the bottom of the bottom plate (201) is close to the road base, and the height of the bottom plate (201) from the road base reaches a preset height value; S4, the solid waste asphalt mixture is released from the feeding mechanism (106) into the storage bin (207), and is transferred and stored in the storage bin (207), and the solid waste asphalt mixture falls from the gap between the limiting plate (301) and the blocking plate (302) onto the road surface base; S5, the stirring assembly (4) is started, and the spiral stirrer (403) starts to operate, driving two sets of spiral stirring blades in opposite directions to rotate synchronously, thereby driving the solid waste asphalt mixture to move from the middle area of ​​the stirring assembly (4) to both sides, and as the paving device moves, the screed plate (111) spreads the solid waste asphalt mixture; S6, judging the concave and convex conditions on the road surface base at a fixed point according to the rotation of the bottom plate (201), setting the bottom of the bottom plate (201) to contact the road surface base, and when the paving device moves to a concave area of ​​the road surface base, the bottom plate (201) moves along the surface path of the concave area, driving the gap between the limit plate (301) and the blocking plate (302) to increase, while increasing the stirring rate of the spiral stirrer (403); When the paving device moves to the raised area of ​​the road base, the bottom plate (201) moves along the surface path of the raised area, driving the gap between the limit plate (301) and the blocking plate (302) to decrease, while reducing the stirring rate of the spiral stirrer (403).

6. Use of the solid waste material paving device according to any one of claims 1 to 4 in a permeable asphalt pavement.

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