Special vehicle for mixing, loading and road rolling of cementing powder for tailings and process of special vehicle

Abstract

The invention provides a special vehicle for mixing, loading and road rolling of cementing powder for tailings and a process of the special vehicle. The special vehicle comprises a road rolling vehicle, a guide rail frame is arranged on the road rolling vehicle, springs are arranged between the road rolling vehicle and the guide rail frame at intervals, a sliding plate is arranged on the guide rail frame in a sliding mode, and a mixing barrel is arranged in the middle of the sliding plate. When a tailing mixture is mixed in the mixing barrel, air in the mixing barrel can be pumped out, then the tailing mixture is laid on a road, and the air encountered by the tailing mixture can be pumped away in the laying process, so that the tailing mixture is prevented from making contact with the air in the laying process, and the laying efficiency of the tailing mixture is improved. As the tailing mixture does not contain bubbles, the final strength of the road can be improved, the aging process of the road can be slowed down, and the service life of the road can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, and in particular to a special vehicle and a process thereof for mixing, loading and rolling tailings glue-solid powder for road construction. Background Art

[0002] In road construction, using tailings mixed with glue-solid powder for road construction is an environmentally friendly and economical method. As a waste material, the recycling and reuse of tailings is of great significance to environmental protection. However, the physical properties of tailings themselves are unstable, and the gaps between particles are large. Direct use in road construction may result in insufficient road structure strength and fail to meet the requirements of traffic load. Therefore, the introduction of glue-solid powder as a reinforcing agent becomes an effective solution. It can improve the bonding state between tailings particles, thereby improving the mechanical properties of the overall material.

[0003] However, despite the addition of cement powder, tailings mixtures still face a significant problem: a large number of bubbles are easily generated during the paving process. The presence of these bubbles not only affects the final strength of the road, but may also accelerate the aging process of the road and shorten its service life. In order to solve this problem, it is necessary to develop special vehicles and technologies to ensure that the tailings mixture can achieve sufficient density after paving and reduce or even eliminate internal bubbles. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned prior art, the present invention provides a special vehicle and process for mixing, loading and rolling tailings glue powder for road construction, which can solve the problem that when using tailings mixture for road paving, a large number of bubbles in the tailings mixture not only easily affect the final strength of the road, but also may accelerate the aging process of the road and shorten its service life.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A special vehicle for mixing, loading and rolling of tailings glue-solidified powder for road construction, comprising a roller, a guide rail frame is provided on the roller, springs are arranged between the roller and the guide rail frame, a slide plate is slidably arranged on the guide rail frame, a mixing barrel is arranged in the middle of the slide plate, and a stirring mechanism is arranged on the mixing barrel, a vacuum pump I is arranged on the slide plate, a connecting pipe I is connected between the air inlet of the vacuum pump I and the mixing barrel, and the vacuum pump I is used to extract the air in the mixing barrel, a rectangular cavity is provided in the middle of the guide rail frame, limit plates are symmetrically arranged in the front and rear of the rectangular cavity of the guide rail frame, and limit frames are symmetrically arranged in the left and right of the rectangular cavity of the guide rail frame, the front and rear limit plates and the left and right limit frames are assembled into a frame structure without contact surface and are used to limit the tailings mixture; the guide rail frame is provided with a device for driving the slide plate to slide up and down and drive A driving mechanism for moving the limit plate and the limit frame up and down, the bottom of the mixing barrel is connected to a pressure plate that can slide up and down with the inner wall of the frame structure, and a vibrator is arranged on the pressure plate, the vibrator is used to drive the pressure plate to vibrate and compact the tailings mixture, the limit plate and the limit frame are provided with a sealing mechanism, the sealing mechanism is used to seal the gap between the limit plate, the limit frame and the pressure plate, so that the limit plate, the limit frame, the pressure plate and the sealing mechanism are assembled into a frame structure with a contact surface, a vacuum pump II is arranged on the slide plate, a closing frame is connected to the top of the pressure plate, a connecting pipe II is connected between the air inlet of the vacuum pump II and the closing frame, and the vacuum pump II is used to extract the air in the frame structure with a contact surface, and a sealing mechanism is arranged on the mixing barrel and the closing frame, the sealing mechanism is used to seal the bottom of the mixing barrel and the closing frame to be flush with the bottom of the pressure plate.

[0007] As a preferred embodiment of the present invention, the stirring mechanism includes a servo motor I and a stirring frame, wherein the servo motor I is installed on a mixing barrel, the stirring frame is rotatably installed in the mixing barrel and is used to stir the tailings, cement powder and water, and the stirring frame is connected to the output shaft of the servo motor I.

[0008] As a preferred embodiment of the present invention, the driving mechanism includes a hydraulic cylinder I and a hydraulic cylinder II. The hydraulic cylinder I is symmetrically installed on the front and rear of the guide rail frame. The telescopic rod of the hydraulic cylinder I is vertically upward and connected to the slide plate. Four groups of hydraulic cylinders II are arranged on the guide rail frame, two groups of hydraulic cylinders II are symmetrical front and rear and their telescopic rods are respectively connected to the front and rear limit plates, and the remaining two groups of hydraulic cylinders II are symmetrical left and right and their telescopic rods are respectively connected to the left and right limit frames.

[0009] As a preferred embodiment of the present invention, the sealing mechanism includes a rubber plate, a sealing gasket, an air pump I, an air bag, an air pipe I, an air pump II and an air pipe II; the side walls of the limit plate, the limit frame and the pressure plate are connected with the rubber plate, and the rubber plates on the limit plate, the limit frame and the pressure plate are in contact with each other, and the bottoms of the limit plate and the limit frame are connected with sealing gaskets, which are used to seal the contact surfaces between the limit plate and the limit frame and the ground; an air pump I is installed on the top of the pressure plate, an air bag is arranged in the rubber plate, and an air pipe I is connected between the air outlet of the air pump I and the air bag, which is used to squeeze adjacent rubber plates together when the air bag is in an expanded state; an air pump II is installed on the top of the pressure plate, a groove is provided at the bottom of the sealing gasket, and an air pipe II is connected between the air inlet of the air pump II and the groove.

[0010] As a preferred embodiment of the present invention, the sealing mechanism includes a servo motor II, a rotating block I, a servo motor III and a rotating block II; the servo motor II and the servo motor III are both installed on the top of the pressure plate, a rotating block I is rotatably arranged on the lower side of the mixing barrel, a through hole I is opened on the rotating block I and fits the inner wall of the lower side of the mixing barrel, the bottom of the rotating block I passes downward through the pressure plate and is flush with the bottom of the pressure plate, the rotating block I and the pressure plate are rotatable and sealed, the output shaft of the servo motor II is connected to the rotating block I, a rotating block II is rotatably arranged in the closed frame, a through hole II is opened on the rotating block II and fits the inner wall of the closed frame, the bottom of the rotating block II passes downward through the pressure plate and is flush with the bottom of the pressure plate, and the output shaft of the servo motor III is connected to the rotating block II.

[0011] As a preferred embodiment of the present invention, the special vehicle for mixing, loading and rolling of tailings glue powder road construction includes a cleaning mechanism, which includes a hydraulic cylinder III, a connecting frame and a push plate; the roller is equipped with a hydraulic cylinder III, the telescopic rod of the hydraulic cylinder III is vertically downward, and the telescopic rod of the hydraulic cylinder III is connected to a connecting frame, and the connecting frame is connected to a push plate for pushing foreign objects on the road surface to both sides.

[0012] As a preferred embodiment of the present invention, the special vehicle for mixing, loading and rolling of tailings cement powder road construction includes a roller II, and the roller II for compacting soil is rotatably mounted on the connecting frame.

[0013] The present invention provides a rolling process for road construction using glue-solidified powder for tailings, and the rolling process uses the above-mentioned special vehicle for mixing, loading and rolling of glue-solidified powder for tailings;

[0014] The rolling process includes the following steps:

[0015] 1) In a mixing barrel, tailings, cement powder and water are stirred and mixed by a stirring mechanism to form a tailings mixture. At the same time, the air in the mixing barrel is extracted by a vacuum pump I through a connecting pipe I to avoid bubbles formed by the tailings mixture and air in the mixing barrel;

[0016] 2) Use other vehicles to tow the road roller to the designated location;

[0017] 3) The limiting plate, limiting frame, sliding plate, rotating block I, pressing plate, closing frame and rotating block II are driven by the driving mechanism to move toward the side close to the road surface, so that the sealing gaskets at the bottom of the limiting plate and limiting frame are in contact with and compressed by the road surface, thereby forming a closed space between the limiting plate, limiting frame, pressing plate and the road surface, and then the closed space is sealed by the sealing mechanism;

[0018] 4) The air in the closed space is extracted by the sealing mechanism and the vacuum pump II, and the gas in the groove at the bottom of the sealing pad is extracted by the vacuum pump II, and then the tailings mixture in the mixing barrel is introduced into the closed space, so that the tailings mixture falls on the road surface for paving, and then the bottom surface of the rotating block I and the rotating block II is flush with the bottom surface of the pressing plate by the sealing mechanism, and then the sliding plate, the mixing barrel, the rotating block I, the pressing plate, the closing frame and the rotating block II are driven by the driving mechanism to continue to move to the side close to the road surface, so that the bottom surfaces of the rotating block I, the pressing plate and the rotating block II flatten the tailings mixture on the road surface;

[0019] 5) Turn on the vibrator, which drives the rotating block I, the pressure plate and the rotating block II to vibrate at high frequency, so as to compact the tailings mixture on the road surface, and the tailings mixture after the initial compaction does not contain bubbles;

[0020] 6) After the tailings mixture is initially pressed on the road surface, the limit plate, limit frame, slide plate, rotating block I, pressure plate, closing frame and rotating block II are driven by the driving mechanism to move and reset to the side away from the road surface, so that the sealing gasket at the bottom of the limit plate and limit frame is separated from the road surface and the pressure is released, and the sealing gasket is restored to its original state, and at the same time, the slide plate, rotating block I, pressure plate, closing frame and rotating block II are driven by hydraulic cylinder I to move upward and reset;

[0021] 7) Then, other vehicles are controlled to pull the roller 1 to continue to move to the right, so that the rolling wheel of the roller 1 passes over the tailings mixture after the initial pressing, so that the rolling wheel is used to roll the tailings mixture after the initial pressing, so as to further compact the tailings mixture;

[0022] 8) Repeat the above operation to construct the next road surface until the entire road is paved.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention enables the air in the mixing barrel to be extracted when the tailings mixture is mixed in the mixing barrel, and then the tailings mixture is laid on the road. The air encountered by the tailings mixture during the laying process can also be extracted, thereby preventing the tailings mixture from contacting with the air during the laying process, thereby avoiding bubbles formed in the tailings mixture when it is laid on the road surface. Since the tailings mixture does not contain bubbles, it can not only improve the final strength of the road, but also slow down the aging process of the road and extend its service life.

[0025] 2. The present invention can use the vibrator to drive the rotating block I, the pressure plate and the rotating block II to vibrate at high frequency by setting a spring and a vibrator, so that the rotating block I, the pressure plate and the rotating block II can compact the tailings mixture on the road surface through high-frequency vibration, and the tailings mixture after the initial compaction does not contain bubbles.

[0026] 3. The present invention, by providing a cleaning mechanism and a roller II, can not only use the push plate to push foreign objects on the road to the front and back sides, thereby cleaning the foreign objects on the road, but also can compact the remaining soil on the road through the roller II, so as to subsequently lay the tailings mixture on the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of a special vehicle for mixing, loading and rolling of tailings glue-solidified powder for road construction;

[0028] Figure 2 It is a three-dimensional structural diagram of the roller, spring and guide rail frame;

[0029] Figure 3 It is a three-dimensional structural diagram of the slide plate, mixing barrel and vacuum pump I;

[0030] Figure 4 It is a three-dimensional structural schematic diagram of the stirring mechanism;

[0031] Figure 5 It is a three-dimensional structural diagram of hydraulic cylinder Ⅰ, vacuum pump Ⅱ and closed frame;

[0032] Figure 6 It is a three-dimensional structural diagram of hydraulic cylinder II, limit plate and limit frame;

[0033] Figure 7 It is a three-dimensional structural diagram of the vibrator, the closing frame and the connecting pipe II;

[0034] Figure 8 It is a three-dimensional structural diagram of the rubber plate, the sealing gasket and the vacuum pump I;

[0035] Fig. 9 It is a three-dimensional structural diagram of the air pump Ⅰ, the air bag and the trachea Ⅰ;

[0036] Fig.10 It is a three-dimensional structural schematic diagram of the sealing pad, the vacuum pump II and the air pipe II;

[0037] Fig.11 It is a schematic diagram of the three-dimensional structure of the sealing gasket, the groove and the trachea II;

[0038] Fig.12 It is a three-dimensional structural diagram of the sealing mechanism;

[0039] Fig.13 It is a schematic diagram of the three-dimensional structure of the rotating block I and the rotating block II;

[0040] Fig.14 It is a three-dimensional structural schematic diagram of the cleaning mechanism.

[0041] In the figure: 1-Road roller; 2-Spring; 3-Guide rail frame; 4-Slide plate; 5-Mixer barrel; 601-Servo motor Ⅰ; 602-Stirring frame; 7-Vacuum pump Ⅰ; 8-Connecting pipe Ⅰ; 901-Hydraulic cylinder Ⅰ; 902-Hydraulic cylinder Ⅱ; 10-Limiting plate; 11-Limiting frame; 12-Pressing plate; 1201-Vibrator; 1301-Rubber plate; 1302-Sealing pad; 1303-Vacuum pump Ⅰ; 1304—air bag; 1305—trachea I; 1306—vacuum pump II; 1307—groove; 1308—trachea II; 14—vacuum pump II; 15—enclosing frame; 16—connecting pipe II; 1701—servo motor II; 1702—rotating block I; 1703—servo motor III; 1704—rotating block II; 18—hydraulic cylinder III; 19—connecting frame; 20—push plate; 21—roller II. DETAILED DESCRIPTION

[0042] The present invention is described in detail below in conjunction with embodiments and drawings.

[0043] like Figure 1-Figure 13 As shown, a special vehicle for mixing, loading and rolling tailings glue powder for road construction includes a roller 1, which consists of a frame, rolling wheels and driving wheels. Four driving wheels are rotatably arranged on the lower side of the frame, and the driving wheels are used for rolling on the ground. A rolling wheel is rotatably arranged on the left side of the frame, and the rolling wheel is used for rolling the tailings mixture after initial pressing.

[0044] The special vehicle for mixing, loading and rolling of the tailings cement powder road repair also includes springs 2, guide rails 3, slide plates 4, mixing barrels 5, vacuum pumps I7, connecting pipes I8, limit plates 10, limit frames 11, pressing plates 12, vibrators 1201, vacuum pumps II14, closing frames 15, connecting pipes II16, stirring mechanisms, driving mechanisms, sealing mechanisms and sealing mechanisms. A total of eight springs 2 are symmetrically arranged on the top of the roller 1, and the guide rails 3 are arranged above the roller 1 and pressed on the eight springs 2. The slide plates 4 are slidably arranged on the guide rails 3. In this embodiment, guide columns are vertically fixedly arranged near the four corners of the top of the guide rails 3. The slide plates 4 are sleeved on the guide columns through the through holes arranged thereon and slide with the guide columns in the vertical direction. A rectangular mounting hole is arranged in the middle of the slide plates 4, and the mixing barrels 5 are installed in the rectangular mounting holes of the slide plates 4. The mixing barrels 5 are used to mix tailings, cement powder and water. The mixing barrel 5 is provided with a stirring mechanism for stirring the tailings, cement powder and water, so that the tailings, cement powder and water are uniformly mixed in the mixing barrel 5. A vacuum pump Ⅰ7 is provided on the right front side of the top of the slide plate 4. A connecting pipe Ⅰ8 is connected between the air inlet of the vacuum pump Ⅰ7 and the mixing barrel 5, and the vacuum pump Ⅰ7 can extract the air in the mixing barrel 5 through the connecting pipe Ⅰ8, so that the mixing barrel 5 is in a vacuum state, thereby avoiding bubbles formed by the tailings mixture and air in the mixing barrel 5. A rectangular cavity is provided in the middle of the guide frame 3, and a limit plate 10 is symmetrically provided in the front and rear of the rectangular cavity of the guide frame 3, and a limit frame 11 is symmetrically provided in the left and right of the rectangular cavity of the guide frame 3. The number of the limit plates 10 and the limit frames 11 is two, and the front and rear limit plates 10 and the left and right limit frames 11 are assembled into a frame structure without contact surface and used to limit the tailings mixture. The guide rail frame 3 is provided with a driving mechanism for driving the slide plate 4 to slide up and down and driving the limit plate 10 and the limit frame 11 to move up and down. The bottom of the mixing barrel 5 is connected with a pressing plate 12 whose shape is adapted to the frame structure, and the pressing plate 12 slides up and down with the inner wall of the frame structure. The top of the pressing plate 12 is symmetrically provided with a vibrator 1201, which is used to drive the pressing plate 12 to vibrate, and the pressing plate 12 compacts the tailings mixture in the closed space. The limiting plate 10 and the limiting frame 11 are provided with a sealing mechanism, which is used to seal the gap between the limiting plate 10, the limiting frame 11 and the pressing plate 12, so that the limiting plate 10, the limiting frame 11, the pressing plate 12 and the sealing mechanism are assembled into a frame structure with a contact surface, so that the tailings mixture can be covered on the road in the frame structure, and the frame structure with a contact surface can form a closed space after contacting the ground, thereby isolating the outside air from the tailings mixture in the frame structure, thereby preventing the tailings mixture from contacting the outside air to generate bubbles. A vacuum pump II 14 is provided on the right front side of the top of the slide plate 4, and the vacuum pump II 14 is located in front of the vacuum pump I 7.The front side of the top of the pressing plate 12 is connected with a closed frame 15, and a connecting pipe Ⅱ16 is connected between the air inlet of the vacuum pump Ⅱ14 and the closed frame 15, and the vacuum pump Ⅱ14 can extract the air in the closed space through the connecting pipe Ⅱ16, so that the closed space is in a vacuum state, thereby avoiding bubbles formed by the tailings mixture and the air in the closed space. The mixing barrel 5 and the closed frame 15 are provided with a sealing mechanism, which is used to seal the bottom of the mixing barrel 5 and the closed frame 15 to be flush with the bottom of the pressing plate 12.

[0045] See also Figure 3 and Figure 4 As shown, the stirring mechanism includes a servo motor I 601 and a stirring frame 602. The servo motor I 601 is installed in the middle of the front side of the mixing barrel 5, and the stirring frame 602 is rotatably installed in the mixing barrel 5 and is used to stir the tailings, cement powder and water. The middle of the front side of the stirring frame 602 is connected to the output shaft of the servo motor I 601.

[0046] See also Figure 5-Figure 7 As shown, the driving mechanism includes a hydraulic cylinder I901 and a hydraulic cylinder II902. The hydraulic cylinder I901 is symmetrically installed on the guide frame 3. The telescopic rod of the hydraulic cylinder I901 is vertically upward and connected to the slide plate 4. Four groups of hydraulic cylinders II902 are arranged on the guide frame 3, and the number of each group of hydraulic cylinders II902 is two, and the four groups of hydraulic cylinders II902 are distributed in front, back, left and right. Among them, the two groups of hydraulic cylinders II902 on the front and rear sides are symmetrical in front and back, and the telescopic rods of the front and rear groups of hydraulic cylinders II902 are respectively connected to the front and rear limit plates 10, and the front and rear groups of hydraulic cylinders II902 are used to drive the front and rear limit plates 10 to move up and down. The remaining two groups of hydraulic cylinders II902 on the left and right sides are symmetrical in left and right, and the telescopic rods of the left and right groups of hydraulic cylinders II902 are respectively connected to the left and right limit frames 11, and the left and right groups of hydraulic cylinders II902 are used to drive the left and right limit frames 11 to move up and down.

[0047] See also Figure 8-Figure 11As shown, the sealing mechanism includes a rubber plate 1301, a sealing pad 1302, an air pump I 1303, an air bag 1304, an air pipe I 1305, an air pump II 1306 and an air pipe II 1308. The rubber plate 1301 is provided on the side where the two limit plates 10 are close to each other, and the rubber plate 1301 is also provided on the side where the two limit frames 11 are close to each other, and the rubber plates 1301 are provided on the front and rear sides of the two limit frames 11, and the rubber plates 1301 on the front and rear sides of the limit frames 11 are respectively in contact with the rubber plates 1301 on the front and rear limit plates 10, and the rubber plates 1301 are also provided around the side wall of the pressing plate 12, and the rubber plates 1301 on the side wall of the pressing plate 12 are in contact with the rubber plates 1301 on the limit plates 10 and the limit frames 11, so that the rubber plates 1301 can be used to seal the gaps between the limit plates 10, the limit frames 11 and the pressing plate 12. The bottom of the limiting plate 10 and the limiting frame 11 are both connected with a sealing gasket 1302, which is used to seal the contact surface between the limiting plate 10 and the limiting frame 11 and the ground. An air pump I 1303 is installed on the right front side of the top of the pressure plate 12, and an air bag 1304 is arranged inside the rubber plate 1301. An air pipe I 1305 is connected between the air outlet of the air pump I 1303 and the air bag 1304. When the air bag 1304 is in an expanded state, it is used to squeeze the adjacent rubber plates 1301 together. An air pump II 1306 is installed on the left front side of the top of the pressure plate 12, and a groove 1307 is provided at the bottom of the sealing gasket 1302. An air pipe II 1308 is connected between the air inlet of the air pump II 1306 and the groove 1307. The air pipe II 1308 runs through the limiting plate 10 and the limiting frame 11.

[0048] See also Fig.12 and Fig.13As shown, the sealing mechanism includes a servo motor II 1701 , a rotating block I 1702 , a servo motor III 1703 and a rotating block II 1704 . The servo motor II 1701 is installed on the rear side of the top of the pressing plate 12; a rotating block I 1702 is rotatably arranged on the lower inner side of the mixing barrel 5, and a through hole I is opened on the rotating block I 1702 and fits the inner wall of the lower inner side of the mixing barrel 5. The through hole I runs through the entire rotating block I 1702, so that the rotating block I 1702 can block the lower inner side of the mixing barrel 5, and the bottom of the rotating block I 1702 passes downward through the pressing plate 12 and is flush with the bottom of the pressing plate 12. The rotating block I 1702 and the pressing plate 12 are rotatable and sealed. The output shaft of the servo motor II 1701 is connected to the rotating block I 1702. Initially, the through hole I on the rotating block I 1702 is inclined, and the upper end of the through hole I fits the inner wall surface of the lower inner side of the mixing barrel 5. The upper end of the through hole I is sealed, and the bottom end surface of the rotating block I 1702 is The bottom of the pressing plate 12 is flush, and the servo motor II 1701 is turned on. The servo motor II 1701 drives the rotating block I 1702 to rotate a certain angle. The upper end of the through hole I is connected to the mixing barrel 5, and the lower end of the through hole I is connected to the closed space at the bottom, so that the tailings mixture in the barrel 5 is introduced into the closed space through the through hole I. After a certain amount of tailings mixture is placed on the road surface (the amount here is determined according to the thickness of the tailings mixture to be laid. If it needs to be thicker, more is laid, and vice versa), the servo motor II 1701 drives the rotating block I 1702 to rotate in the opposite direction and reset, so that the through hole I on the rotating block I 1702 is disconnected from the closed space and the mixing barrel 5, and the bottom surface of the rotating block I 1702 is flush with the bottom surface of the pressing plate 12 again. The servo motor III 1703 is installed on the front side of the top of the pressing plate 12. A rotating block II 1704 is rotatably arranged in the closed frame 15. A through hole II is opened on the rotating block II 1704 and fits the inner wall of the closed frame 15 so that the rotating block II 1704 can be blocked inside the closed frame 15. The through hole II runs through the entire rotating block II 1704. The bottom of the rotating block II 1704 passes downward through the pressing plate 12 and is flush with the bottom of the pressing plate 12. The output shaft of the servo motor III 1703 is connected to the rotating block II 1704. Initially, the upper port of the through hole II on the rotating block II 1704 fits and seals with the inner wall of the closed frame 15. The rotating block II 1704 The bottom is flush with the bottom of the pressing plate 12, and the servo motor III 1703 drives the rotating block II 1704 to rotate a certain angle. The upper port of the through hole II on the rotating block II 1704 is connected to the connecting pipe II 16, and the lower port of the through hole II is connected to the closed space at the bottom. The vacuum pump II 14 can extract the air in the closed space through the connecting pipe II 16 and the through hole II. Then, the servo motor III 1703 drives the rotating block II 1704 to rotate in the opposite direction and reset, so that the through hole II on the rotating block II 1704 is disconnected from the connecting pipe II 16 and the closed space, and the bottom surface of the rotating block II 1704 is flush with the bottom surface of the pressing plate 12 again.

[0049] When in use, the right side of the roller 1 is towed onto other vehicles, so that the other vehicles are used to tow the roller 1 to move to the right, and then the tailings, cement powder and water are added into the mixing barrel 5 in a certain proportion, and then the servo motor Ⅰ601 drives the stirring frame 602 to rotate, so that the stirring frame 602 stirs the tailings, cement powder and water in the mixing barrel 5 until the tailings, cement powder and water form a tailings mixture. During this period, the air in the mixing barrel 5 is extracted through the connecting pipe Ⅰ8 by the vacuum pump Ⅰ7, so that the mixing barrel 5 is in a vacuum, thereby avoiding bubbles formed by the tailings mixture and air in the mixing barrel 5. When the roller 1 moves to the road where the tailings mixture needs to be laid, other vehicles are controlled to stop pulling the roller 1 to move to the right, so that the roller 1 stops moving, and then the hydraulic cylinder II 902 drives the limit plate 10 and the limit frame 11 to move downward, and at the same time, the hydraulic cylinder I 901 drives the slide plate 4, the rotating block I 1702, the pressure plate 12, the closing frame 15 and the rotating block II 1704 to move downward. When the sealing gasket 1302 at the bottom of the limit plate 10 and the limit frame 11 is in contact with the road surface (it can also be the tailings mixture laid at the previous place, if the sealing gasket at the bottom of the left limit frame 11 When the tailings mixture 1302 is in contact with the tailings mixture that has been laid at the previous location, the tailings mixture that has been laid at the previous location can be adjacent to the tailings mixture laid at this location, and through the adjacent tailings mixture, all the tailings mixtures that have been laid can form a completed road), the limiting plate 10 and the limiting frame 11 will squeeze the sealing gasket 1302 to deform the sealing gasket 1302, and the sealing gasket 1302 can seal the bottom of the limiting plate 10 and the limiting frame 11 with the road surface, so that the limiting plate 10, the limiting frame 11, the pressure plate 12 and the road surface can form a gap. The air is then pumped into the air pipe I 1305 and the air bag 1304 by the air pump I 1303, so that the air bag 1304 expands by expanding and squeezing the rubber sheet 1301, so that the expanded rubber sheet 1301 is tightly attached to the adjacent rubber sheet 1301, thereby reducing the gap between the rubber sheets 1301 and improving the sealing performance in the closed space. The servo motor III 1703 then drives the rotating block II 1704 to rotate, so that the through hole II on the rotating block II 1704 is aligned with the connecting pipe II 16, so that the connecting pipe II 16 is connected to the sealing member through the through hole II. The closed space is connected, and then the air in the closed space is extracted by the vacuum pump II 14 through the connecting pipe II 16, so that the closed space is in a vacuum state. At the same time, the air extraction pump II 1306 is used to continuously extract air from the groove 1307 of the sealing gasket 1302 through the air pipe II 1308, so that a negative pressure space is gradually formed in the groove 1307. In this way, when the outside air enters through the gap between the sealing gasket 1302 and the road surface, the outside air will first enter the groove 1307. After the outside air enters the groove 1307, the outside air will be extracted by the air extraction pump II 1306. In this way,This can prevent outside air from entering the closed space from the gap between the sealing pad 1302 and the road surface that is not completely sealed, so that the closed space is always maintained in a negative pressure state, thereby reducing the gas in the closed space, and then the servo motor II 1701 drives the rotating block I 1702 to rotate, so that the through hole I on the rotating block I 1702 is connected with the closed space and the mixing barrel 5, so that the tailings mixture in the mixing barrel 5 flows into the closed space through the through hole I, and then the tailings mixture is lowered to the road surface for laying, and the closed space is always in a vacuum state in the above manner, which can avoid the formation of bubbles between the tailings mixture and the air in the closed space, so that the tailings mixture is laid on the road surface without bubbles. Since the tailings mixture does not contain bubbles, it can not only improve the final strength of the road, but also slow down the aging process of the road and extend its service life. After a certain amount of tailings mixture is placed on the road surface (the amount here is determined by the thickness of the tailings mixture to be laid. If it needs to be thicker, lay more, and vice versa), the servo motor II 1701 drives the rotating block I 1702 to rotate in the opposite direction to reset, so that the through hole I on the rotating block I 1702 is disconnected from the closed space and the mixing barrel 5, and the bottom surface of the rotating block I 1702 is flush with the bottom surface of the pressing plate 12 again, and the servo motor III 1703 drives the rotating block II 1704 to rotate in the opposite direction to reset the through hole I on the rotating block I 1702. Reverse rotation reset, so that the through hole II on the rotating block II 1704 is disconnected from the connecting pipe II 16 and the closed space, and the bottom surface of the rotating block II 1704 is flush with the bottom surface of the pressing plate 12 again, and then the hydraulic cylinder I 901 drives the slide plate 4, the mixing barrel 5, the rotating block I 1702, the pressing plate 12, the closing frame 15 and the rotating block II 1704 to continue to move downward, so that the rubber plate 1301 on the side wall of the pressing plate 12 rubs against the rubber plate 1301 on the limiting plate 10 and the limiting frame 11 and slides downward. 02. When the pressing plate 12 and the rotating block II 1704 come into contact with the tailings mixture in the closed space, the rotating block I 1702, the pressing plate 12 and the bottom surface of the rotating block II 1704 will flatten the tailings mixture on the road surface, and then the vibrator 1201 will drive the pressing plate 12, the closed frame 15, the rotating block II 1704, the rotating block I 1702, the slide plate 4, the guide rail frame 3, the limit plate 10 and the limit frame 11 to vibrate at high frequency. During this period, the spring 2 will also undergo adaptive deformation, so that the rotating block I 1702, the pressing plate 12 The rotating block II 1704 compacts the tailings mixture on the road surface through high-frequency vibration. The tailings mixture after the initial pressing does not contain bubbles. After the tailings mixture is initially pressed on the road surface, the laying and initial pressing of the tailings mixture can be completed. During this period, when the limiting plate 10 and the limiting frame 11 are vibrating at high frequency, the sealing gasket 1302 at the bottom of the limiting plate 10 and the limiting frame 11 will undergo adaptive deformation, but the sealing gasket 1302 is always in a compressed deformation state. Therefore, the sealing gasket 1302 will always be in contact with the road surface.So that the sealing gasket 1302 can always maintain the sealing performance in the closed space; after the laying and initial pressure of the tailings mixture are completed, the air in the air pipe I 1305 and the air bag 1304 is extracted through the air pump I 1303, so that the air bag 1304 and the corresponding rubber plate 1301 are contracted, so that the corresponding rubber plate 1301 and the adjacent rubber plate 1301 are properly loosened, so that the friction between the rubber plates 1301 can be reduced, thereby reducing the wear between the rubber plates 1301, and then the air pump II 1306 is used to draw air into the groove 1307 of the sealing gasket 1302 through the air pipe II 1308 until the air pressure in the groove 1307 is restored, and then the hydraulic cylinder II 902 is used to drive the limit plate 10 and the limit frame 11 to move upward The sealing pad 1302 at the bottom of the limit plate 10 and the limit frame 11 is automatically reset to separate from the road surface, and the sealing pad 1302 is restored to its original state. At the same time, the hydraulic cylinder Ⅰ901 drives the slide plate 4, the rotating block Ⅰ1702, the pressure plate 12, the closed frame 15 and the rotating block Ⅱ1704 to move upward and reset. Then, other vehicles are controlled to tow the roller 1 to continue to move to the right, so that the rolling wheel on the roller 1 passes over the tailings mixture after the initial pressure is laid, so that the rolling wheel is used to roll the tailings mixture after the initial pressure is laid, so as to further compact the tailings mixture. After that, the above operation is repeated to complete the paving of the entire road. When the entire road is completed, the right side of the roller 1 is disconnected from the traction of other vehicles.

[0050] See also Fig.14 As shown, the special vehicle for mixing, loading and rolling of tailings cement powder road construction also includes a cleaning mechanism, which includes a hydraulic cylinder III 18, a connecting frame 19 and a push plate 20. Two hydraulic cylinders III 18 are symmetrically installed on the upper right side of the roller 1; the telescopic rods of the two hydraulic cylinders III 18 are vertically downward, and a connecting frame 19 is connected between the telescopic rods of the two hydraulic cylinders III 18, and a push plate 20 for pushing foreign objects to the front and back sides is connected to the right side of the connecting frame 19.

[0051] See also Fig.14 As shown, the special vehicle for mixing, loading and rolling of tailings cement powder road construction also includes a roller II 21; the roller II 21 for compacting the residual soil on the road is rotatably mounted on the connecting frame 19.

[0052] When other vehicles come to pull the roller 1 to move to the right, the hydraulic cylinder III 18 can drive the connecting frame 19, the push plate 20 and the roller II 21 to move downward, so that the push plate 20 and the roller II 21 are in contact with the road surface, so that the push plate 20 can be used to push foreign objects on the road to the front and back sides, so as to clean up the foreign objects on the road, and the roller II 21 can be used to compact the soil remaining on the road so as to lay the tailings mixture on the road later; when the entire road is paved, the hydraulic cylinder III 18 drives the connecting frame 19, the push plate 20 and the roller II 21 to move upward and reset, so that the push plate 20 and the roller II 21 are separated from the road surface, thereby reducing the wear caused between the push plate 20 and the roller II 21 and the ground.

[0053] See also Figure 1-Figure 13 As shown, the rolling process of tailings glue powder road construction uses the above-mentioned special vehicle for mixing, loading and rolling of tailings glue powder road construction;

[0054] The rolling process includes the following steps:

[0055] 1) In the mixing barrel 5, the tailings, cement powder and water are stirred and mixed by a stirring mechanism to form a tailings mixture. At the same time, the air in the mixing barrel 5 is extracted by a vacuum pump Ⅰ7 through a connecting pipe Ⅰ8, thereby avoiding bubbles formed by the tailings mixture and air in the mixing barrel 5.

[0056] 2) Use other vehicles to tow the road roller 1 to a designated location (the designated location refers to the road where the tailings mixture needs to be laid).

[0057] 3) The limit plate 10, the limit frame 11, the slide plate 4, the rotating block I 1702, the pressure plate 12, the closing frame 15 and the rotating block II 1704 are driven by the driving mechanism to move toward the side close to the road surface (i.e., the hydraulic cylinder II 902 drives the limit plate 10 and the limit frame 11 to move downward, and at the same time, the hydraulic cylinder I 901 drives the slide plate 4, the rotating block I 1702, the pressure plate 12, the closing frame 15 and the rotating block II 1704 to move downward), so that the sealing gasket 1302 at the bottom of the limit plate 10 and the limit frame 11 is in contact with the road surface (it can also be the tailings mixture road surface after the previous paving and rolling. If the left hydraulic cylinder II 902 drives the sealing gasket 1302 at the bottom of the left limit frame 11 to contact with the tailings mixture road surface after the previous paving and rolling, then the tailings mixture road surface after the previous paving and rolling can be adjacent to the tailings mixture paved at this location, and By connecting the tailings mixture to each other, all the paved tailings mixture can form a completed road) and contact and be compressed. When the limiting plate 10 and the limiting frame 11 squeeze the sealing gasket 1302, the sealing gasket 1302 is deformed, and the sealing gasket 1302 seals the bottom of the limiting plate 10 and the limiting frame 11 with the road surface, so that a closed space is formed between the limiting plate 10, the limiting frame 11, the pressure plate 12 and the road surface, and then the closed space is sealed by the sealing mechanism (that is, air is pumped into the air pipe Ⅰ1305 and the air bag 1304 through the vacuum pump Ⅰ1303, so that the air bag 1304 expands by expanding and squeezing the rubber sheet 1301, so that the expanded rubber sheet 1301 is tightly fitted with the adjacent rubber sheet 1301, thereby reducing the gap between the rubber sheets 1301 and improving the sealing in the closed space).

[0058] 4) The air in the closed space is extracted by the cooperation of the sealing mechanism and the vacuum pump II 14 (i.e., the servo motor III 1703 drives the rotating block II 1704 to rotate, so that the through hole II on the rotating block II 1704 is aligned with the connecting pipe II 16, so that the connecting pipe II 16 is connected with the closed space through the through hole II, and then the vacuum pump II 14 is used to extract the air in the closed space through the connecting pipe II 16, so that the closed space is in a vacuum state), and at the same time, the bottom groove 1307 of the sealing pad 1302 is continuously extracted by the vacuum pump II 1306 The gas inside causes a negative pressure space to gradually form in the groove 1307. In this way, when outside air enters through the gap between the sealing pad 1302 and the road surface, the outside air will first enter the groove 1307. After the outside air enters the groove 1307, the outside air will be sucked away by the vacuum pump II 1306. In this way, the outside air can be prevented from entering the closed space from the gap between the sealing pad 1302 and the road surface that is not completely sealed, so that the closed space is always kept in a negative pressure state, thereby avoiding the generation of gas in the closed space.

[0059] The tailings mixture in the mixing barrel 5 is then flowed into the closed space (i.e., the rotating block Ⅰ1702 is driven to rotate by the servo motor Ⅱ1701, so that the through hole Ⅰ on the rotating block Ⅰ1702 is connected with the closed space and the mixing barrel 5, so that the tailings mixture in the mixing barrel 5 is placed into the closed space through the through hole Ⅰ), and the tailings mixture is flowed onto the road surface for paving. By making the closed space a vacuum in the above manner, bubbles formed by the tailings mixture and the air in the closed space can be avoided, so that the tailings mixture is laid on the road surface without bubbles. Since the tailings mixture does not contain bubbles, it can not only improve the final strength of the road, but also slow down the aging process of the road and extend its service life.

[0060] Then, the sealing mechanism is used to make the bottom surfaces of the rotating block I 1702 and the rotating block II 1704 flush with the bottom surface of the pressing plate 12 (that is, the servo motor II 1701 drives the rotating block I 1702 to rotate in the opposite direction to reset, so that the through hole I on the rotating block I 1702 is disconnected from the closed space and the mixing barrel 5, and the bottom surface of the rotating block I 1702 is flush with the bottom surface of the pressing plate 12 again, and the servo motor III 1703 drives the rotating block II 1704 to rotate in the opposite direction to reset, so that the through hole II on the rotating block II 1704 is disconnected from the connecting pipe II 16 and the closed space, and the bottom surface of the rotating block II 1704 is flush with the bottom surface of the pressing plate 12 again). The hydraulic cylinder Ⅰ1701 drives the slide plate 4, the mixing barrel 5, the rotating block Ⅰ1702, the pressing plate 12, the closing frame 15 and the rotating block Ⅱ1704 to continue to move to the side close to the road surface, so that the rubber sheet 1301 on the side wall of the pressing plate 12 rubs against the rubber sheets 1301 on the limiting plate 10 and the limiting frame 11 and slides downward; when the rotating block Ⅰ1702, the pressing plate 12 and the rotating block Ⅱ1704 come into contact with the tailings mixture in the closed space, the bottom surfaces of the rotating block Ⅰ1702, the pressing plate 12 and the rotating block Ⅱ1704 will flatten the tailings mixture onto the road surface.

[0061] 5) Turn on the vibrator 1201, and the vibrator 1201 drives the pressing plate 12, the closing frame 15, the rotating block II 1704 and the rotating block I 1702 to vibrate at high frequency. During this period, the spring 2 will also undergo adaptive deformation, so that the rotating block I 1702, the pressing plate 12 and the rotating block II 1704 can compact the tailings mixture on the road surface through high-frequency vibration, and the initial pressure of the tailings mixture can be completed. The tailings mixture after the initial pressure does not contain bubbles. During the compaction vibration, when the limit plate 10 and the limit frame 11 are vibrating at high frequency, the sealing gasket 1302 at the bottom of the limit plate 10 and the limit frame 11 will also undergo adaptive deformation, but the sealing gasket 1302 is always in a state of compression deformation, so that the sealing gasket 1302 will always be in contact with the road surface, so that the sealing gasket 1302 can always maintain the sealing in the closed space.

[0062] 6) After the tailings mixture is compacted on the road surface, the limiting plate 10, the limiting frame 11, the slide plate 4, the rotating block I 1702, the pressing plate 12, the closing frame 15 and the rotating block II 1704 are driven by the driving mechanism to move to the side away from the road surface to reset (i.e., the air in the air pipe I 1305 and the air bag 1304 is extracted by the air pump I 1303, so that the air bag 1304 and the corresponding rubber plate 1301 are contracted, so that the corresponding rubber plate 1301 is properly loosened from the adjacent rubber plate 1301, so that the friction between the rubber plates 1301 can be reduced, thereby reducing the friction between the rubber plates 1301 and the rubber plates 1301. 1, and then use the air pump II 1306 to draw air into the groove 1307 of the sealing gasket 1302 through the air pipe II 1308 until the air pressure in the groove 1307 is restored, and then the hydraulic cylinder II 902 drives the limit plate 10 and the limit frame 11 to move upward and reset), so that the sealing gasket 1302 at the bottom of the limit plate 10 and the limit frame 11 is separated from the road surface and the pressure is released, and the sealing gasket 1302 is restored to its original state, and at the same time, the hydraulic cylinder I 901 drives the slide plate 4, the rotating block I 1702, the pressure plate 12, the closing frame 15 and the rotating block II 1704 to move upward and reset.

[0063] 7) Then, other vehicles are controlled to pull the roller 1 to continue to move to the right, so that the rolling wheel of the roller 1 passes over the tailings mixture after the initial pressing, so that the rolling wheel is used to roll the tailings mixture after the initial pressing, so as to further compact the tailings mixture;

[0064] 8) Repeat the above operation to construct the next road surface until the entire road is paved.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Special vehicles for loading tailings with glue-solid-powder mixture, including road rollers, characterized by: The roller is provided with a guide rail frame, a spring is arranged between the roller and the guide rail frame, a slide plate is slidably arranged on the guide rail frame, a mixing barrel is arranged in the middle of the slide plate, a stirring mechanism is arranged on the mixing barrel, a vacuum pump I is arranged on the slide plate, a connecting pipe I is connected between the air inlet of the vacuum pump I and the mixing barrel, and the vacuum pump I is used to extract the air in the mixing barrel, a rectangular cavity is arranged in the middle of the guide rail frame, limit plates are symmetrically arranged in the front and back of the rectangular cavity of the guide rail frame, and limit frames are symmetrically arranged in the left and right of the rectangular cavity of the guide rail frame, the front and rear limit plates and the left and right limit frames are assembled into a frame structure without contact surface and are used to limit the tailings mixture; a driving device for driving the slide plate to slide up and down and driving the limit plate and the limit frame to move up and down is arranged on the guide rail frame. The invention relates to a driving mechanism, wherein a pressure plate which can slide up and down with the inner wall of the frame structure is connected to the bottom of the mixing barrel, and a vibrator is arranged on the pressure plate, which is used to drive the pressure plate to vibrate and compact the tailings mixture. A sealing mechanism is arranged on the limit plate and the limit frame, and the sealing mechanism is used to seal the gap between the limit plate, the limit frame and the pressure plate, so that the limit plate, the limit frame, the pressure plate and the sealing mechanism are assembled into a frame structure with a contact surface. A vacuum pump II is arranged on the slide plate, and a closing frame is connected to the top of the pressure plate. A connecting pipe II is connected between the air inlet of the vacuum pump II and the closing frame, and the vacuum pump II is used to extract the air in the frame structure with a contact surface. A sealing mechanism is arranged on the mixing barrel and the closing frame, and the sealing mechanism is used to seal the bottom of the mixing barrel and the closing frame to be flush with the bottom of the pressure plate.

2. The special vehicle for tailings glue-solid-powder mixing, loading and rolling according to claim 1, characterized in that: The stirring mechanism includes a servo motor I and a stirring frame. The servo motor I is installed on a mixing barrel. The stirring frame is rotatably installed in the mixing barrel and is used to stir tailings, cement powder and water. The stirring frame is connected to the output shaft of the servo motor I.

3. The special vehicle for tailings glue-solid-powder mixing, loading and rolling according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder I and a hydraulic cylinder II. The hydraulic cylinder I is symmetrically installed on the guide rail frame. The telescopic rod of the hydraulic cylinder I is vertically upward and connected to the slide plate. Four groups of hydraulic cylinders II are arranged on the guide rail frame, two groups of hydraulic cylinders II are symmetrical front to back and their telescopic rods are respectively connected to the front and rear limit plates, and the remaining two groups of hydraulic cylinders II are symmetrical left to right and their telescopic rods are respectively connected to the left and right limit frames.

4. The special vehicle for tailings glue-solid-powder mixing, loading and rolling according to claim 3, characterized in that: The sealing mechanism includes a rubber plate, a sealing pad, an air pump I, an air bag, an air pipe I, an air pump II and an air pipe II; the side walls of the limit plate, the limit frame and the pressure plate are connected with the rubber plate, and the rubber plates on the limit plate, the limit frame and the pressure plate are in contact with each other, the bottoms of the limit plate and the limit frame are connected with sealing pads, and the sealing pads are used to seal the contact surfaces between the limit plate and the limit frame and the ground; the top of the pressure plate is equipped with an air pump I, an air bag is arranged in the rubber plate, and an air pipe I is connected between the air outlet of the air pump I and the air bag, and the air bag is used to squeeze adjacent rubber plates tightly together when the air bag is in an expanded state; the top of the pressure plate is equipped with an air pump II, the bottom of the sealing pad is provided with a groove, and the air inlet of the air pump II is connected with the air pipe II.

5. The special vehicle for tailings glue-solid-powder mixing, loading and rolling according to claim 4, characterized in that: The sealing mechanism includes a servo motor II, a rotating block I, a servo motor III and a rotating block II; the servo motor II and the servo motor III are both installed on the top of the pressure plate, a rotating block I is rotatably arranged on the lower side of the mixing barrel, a through hole I is opened on the rotating block I and fits the inner wall of the lower side of the mixing barrel, the bottom of the rotating block I passes downward through the pressure plate and is flush with the bottom of the pressure plate, the rotating block I and the pressure plate are rotatable and sealed, the output shaft of the servo motor II is connected to the rotating block I, a rotating block II is rotatably arranged in the closed frame, a through hole II is opened on the rotating block II and fits the inner wall of the closed frame, the bottom of the rotating block II passes downward through the pressure plate and is flush with the bottom of the pressure plate, and the output shaft of the servo motor III is connected to the rotating block II.

6. The special vehicle for mixing, loading and rolling of tailings with cement and solid powder according to claim 5, characterized in that: It also includes a cleaning mechanism, which includes a hydraulic cylinder III, a connecting frame and a push plate; the roller is equipped with a hydraulic cylinder III, the telescopic rod of the hydraulic cylinder III is vertically downward, and the telescopic rod of the hydraulic cylinder III is connected to a connecting frame, and the connecting frame is connected to a push plate for pushing foreign objects on the road surface to both sides.

7. The special vehicle for tailings glue-solid powder mixing, loading and rolling according to claim 6, characterized in that: It also includes a roller II (21), on which the connecting frame is rotatably mounted a roller II for compacting soil.

8. The rolling process of tailings glue-solidified powder for road construction is characterized by: The rolling process uses a special vehicle for mixing, loading and rolling tailings cement and powder as described in any one of claims 5 to 7; The rolling process includes the following steps: S1) using a stirring mechanism to stir and mix tailings, cement powder and water in a mixing barrel, so that the tailings, cement powder and water form a tailings mixture, and at the same time using a vacuum pump I to extract the air in the mixing barrel through a connecting pipe I, so as to avoid bubbles formed by the tailings mixture and air in the mixing barrel; S2) using other vehicles to tow the road roller to a designated location; S3) driving the limiting plate, limiting frame, sliding plate, rotating block I, pressing plate, closing frame and rotating block II to move toward the side close to the road surface through the driving mechanism, so that the sealing gaskets at the bottom of the limiting plate and limiting frame contact and are compressed with the road surface, thereby forming a closed space between the limiting plate, limiting frame, pressing plate and the road surface, and then sealing the closed space through the sealing mechanism; S4) The air in the closed space is extracted by the sealing mechanism and the vacuum pump II, and the gas in the groove at the bottom of the sealing pad is extracted by the vacuum pump II, and then the tailings mixture in the mixing barrel is introduced into the closed space, so that the tailings mixture falls on the road surface for paving, and then the bottom surface of the rotating block I and the rotating block II is flush with the bottom surface of the pressing plate by the sealing mechanism, and then the sliding plate, the mixing barrel, the rotating block I, the pressing plate, the closing frame and the rotating block II are driven by the driving mechanism to continue to move to the side close to the road surface, so that the bottom surfaces of the rotating block I, the pressing plate and the rotating block II flatten the tailings mixture on the road surface; S5) turning on the vibrator, which drives the rotating block I, the pressing plate and the rotating block II to vibrate at a high frequency, so as to compact the tailings mixture on the road surface, and the tailings mixture after the initial compaction does not contain bubbles; S6) After the tailings mixture is initially pressed on the road surface, the limiting plate, limiting frame, sliding plate, rotating block I, pressing plate, closing frame and rotating block II are driven by the driving mechanism to move and reset to the side away from the road surface, so that the sealing pads at the bottom of the limiting plate and limiting frame are separated from the road surface and the pressure is released, and the sealing pads are restored to their original state, and at the same time, the sliding plate, rotating block I, pressing plate, closing frame and rotating block II are driven by the hydraulic cylinder I to move upward and reset; S7) then controls other vehicles to pull the roller to continue to move to the right, so that the rolling wheel on the roller passes over the tailings mixture after the initial pressing, so that the rolling wheel is used to roll the tailings mixture after the initial pressing, so as to further compact the tailings mixture; S8) Repeat the above operation to construct the next road surface until the entire road is paved.

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