Fiber gravel sealing layer device and method

Abstract

The invention discloses a fiber gravel seal coat device and method.The fiber gravel seal coat device comprises a power headstock and a placement compartment connected with the power headstock, a rail matched with a movable frame is arranged in the placement compartment, and a gravel receiving bin and an asphalt heat preservation tank are arranged on the movable frame from front to back; the gravel receiving bin and the asphalt heat preservation tank are detachably connected with the movable frame, a gravel conveying system comprising a plurality of conveying belts is arranged at the bottom of the gravel receiving bin, gravel is conveyed into the distributing hopper through the gravel conveying system, the distributing hopper evenly spreads the gravel through a distributing device, and the asphalt heat preservation tank is connected with the movable frame. An asphalt stirring device is installed in the asphalt heat preservation tank, the asphalt heat preservation tank is connected with an asphalt pipeline pumping system, the asphalt pipeline pumping system comprises an asphalt pump and a pipeline, and the asphalt pipeline pumping system is arranged in the direction of the movable frame. And the asphalt pipeline pumping system extends to an asphalt distribution device at the tail part of the movable frame.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction operations, and in particular relates to a fiber chip seal device and method. Background Art

[0002] During the construction of the fiber seal, the cut fiber sections are spread evenly in the upper and lower layers of evenly spread asphalt binder by special fiber cutting and spreading equipment, and are evenly distributed in random directions, overlapped with each other, and form a network winding structure with the asphalt mixture. A layer of protective mesh with high elasticity and strength is laid between the base and surface of the new road or on the basis of the original road surface, which effectively improves the comprehensive mechanical properties of the seal, such as tensile, shear, compression and impact strength, and can absorb the stress in the paving layer or the local concentrated stress generated by the vehicle load, and redistribute and distribute it. The large-area dispersion of the seal reduces the tension borne by the covering layer and effectively inhibits the generation of cracks. It can absorb and disperse the reflected stress of the original cracks or roadbed of the old asphalt pavement, eliminate the stress concentration generated at the tip of the cracks of the old asphalt pavement, and effectively inhibit the appearance of reflected cracks. After the fiber seal, gravel is spread synchronously to effectively prevent the road damage caused by excessive vehicle load. Before the fiber seal, it is necessary to lay tarpaulin on the road surface so that the upper and lower layers have sufficient bonding force, so that the two are bonded into a solid whole to prevent sliding and shifting of the adjacent two layers.

[0003] The existing fiber chip sealer has a single function, which is to provide only the function of spreading asphalt fiber seal and crushed stone mixture. It needs to manually lay the tarpaulin, which is time-consuming and labor-intensive and has poor laying firmness. When users want to complete different processes, they need to use synchronous chip sealers with different functions, which undoubtedly increases the purchase cost and also leads to the failure to promote and apply new technologies and new processes.

[0004] In view of the above factors, a fiber chip seal device and method are provided to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a fiber chip seal device and method to solve the problems raised in the above background technology.

[0006] The objective of the present invention is achieved through the following technical solutions: a fiber chip seal device, comprising a power locomotive and a placement carriage connected to the power locomotive, wherein the placement carriage is provided with a track matched with a movable frame, and a sealing device is provided on the movable frame, wherein the sealing device comprises a chip receiving bin and an asphalt insulation tank arranged from front to rear, and the chip receiving bin and the asphalt insulation tank are respectively connected to the movable frame in a detachable manner;

[0007] A gravel conveying system including a plurality of conveying belts is arranged at the bottom of the gravel receiving bin, and the gravel is conveyed to the distribution hopper through the gravel conveying system, and the distribution hopper evenly spreads the gravel through the distributor;

[0008] An asphalt stirring device is installed in the asphalt insulation tank, and the asphalt insulation tank is connected to an asphalt pipeline pumping system, the asphalt pipeline pumping system includes an asphalt pump and a pipeline, the asphalt pipeline pumping system is arranged along the direction of the movable frame, and the asphalt pipeline pumping system extends to the asphalt spreading device at the rear of the movable frame.

[0009] Furthermore, crawler-type or wheel-type structures are provided on both sides of the movable frame to cooperate with the tracks provided in the placement carriage;

[0010] Positioning pins connected via axle seats are arranged on both sides of the crawler or wheel structure of the movable frame, and the positioning pins cooperate with positioning holes on the placement carriage.

[0011] Further, the distributor is arranged at the bottom of the placement carriage, and the distributor is arranged obliquely along the longitudinal direction of the placement carriage;

[0012] The distributor is inclined at 45-60 degrees along the longitudinal direction of the placement compartment.

[0013] Furthermore, the asphalt spreading device is a bucket-shaped cabin structure arranged at intervals, and the lower part of the asphalt spreading device is connected to one or two rows of asphalt nozzles pointing vertically downward, and each row of asphalt nozzles is arranged at equal distances;

[0014] The asphalt nozzle is connected to the asphalt spreading device through a connecting pipeline, and an asphalt pipeline pump and a control valve are arranged on the connecting pipeline.

[0015] Furthermore, the distributor is of a hollow slot structure, and gravel flow channel slots are arranged at intervals on the distributor;

[0016] A material control door is arranged below the material distribution hopper, and the opening of the material control door is controlled by a cylinder.

[0017] Furthermore, the lateral width of the distributor is the same as the lateral width of the equally spaced asphalt nozzles, and a baffle plate is provided below the distributor, which is inclined and faces one side of the placement carriage.

[0018] Furthermore, a distance of 1000 mm is left between the movable frame and the rear end of the placement compartment, a dust suction device is arranged on the inner wall of the rear end of the placement compartment, and the dust suction device is connected to the placement compartment.

[0019] Furthermore, a pleated curtain is provided at the rear end of the movable frame, and the upper end of the pleated curtain is detachably connected to the placement carriage;

[0020] A dust removal space is formed between the pleated curtain and the placement compartment.

[0021] Furthermore, a fiber spreading trough is provided between the asphalt nozzle and the distributor, and the fiber spreading trough is connected to the fiber storage bin through a rectangular pipe;

[0022] The fiber spreading trough is provided with a material collecting and wine spreading mechanism with a spiral material distribution, and the material collecting and wine spreading mechanism comprises a spiral material distribution shaft, and the spiral material distribution shaft is controlled to rotate by a control motor.

[0023] An application method of a fiber chip seal device is characterized by comprising the following steps;

[0024] The first step is to prepare emulsified asphalt by mixing the asphalt and the soap solution evenly and keeping the mixture at 60°C-70°C for 0.5-12 hours to prepare the emulsified asphalt;

[0025] In the second step, the emulsified asphalt in step 1 is added into the asphalt insulation tank and stirred in the asphalt insulation tank by an asphalt stirring device, wherein the asphalt stirring device is driven by a motor to rotate a rotating shaft, and stirring rods of different lengths are arranged at intervals on the rotating shaft;

[0026] In the third step, the asphalt insulation tank is connected to an asphalt pipeline pumping system, which includes an asphalt pump and a pipeline. The asphalt pipeline pumping system is arranged along the direction of the movable frame and extends to an asphalt spreading device at the rear of the movable frame. The asphalt spreading device is a bucket-shaped cabin structure arranged at intervals. The bottom of the asphalt spreading device is connected to one or two rows of vertically downward asphalt nozzles. Each row of asphalt nozzles is arranged equidistantly. The asphalt nozzles are connected to the asphalt spreading device through connecting pipes to evenly spread the asphalt on the road surface.

[0027] In the fourth step, a fiber spreading trough is provided between the asphalt nozzle and the distributor, and the fiber spreading trough is connected to the fiber storage bin through a rectangular pipe; after the asphalt is spread through the asphalt nozzle, a gathering and spreading mechanism with a spiral material distribution is provided on the fiber spreading trough for fiber laying, and the gathering and spreading mechanism includes a spiral material distribution shaft, and the spiral material distribution shaft is controlled to rotate by a control motor;

[0028] The fifth step is to transport materials through the material transport vehicle and complete the loading of emulsified asphalt and gravel during the operation. The gravel receiving bin cooperates with the placement carriage to load the gravel into the gravel receiving bin. The volume of the gravel receiving bin is sufficient to carry the gravel required for the synchronous sealing operation between two loading intervals.

[0029] A gravel conveying system including a plurality of conveyor belts is arranged at the bottom of the gravel receiving bin, and the gravel is conveyed to a distribution hopper through the gravel conveying system, and the distribution hopper evenly spreads the gravel through a distributor.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] Compared with the traditional synchronous chip sealer, the present invention realizes multiple uses of one vehicle and realizes triple sealing. The movable frame and the placement carriage provided in the present invention can be used in combination according to different actual road conditions, or the movable frame with the sealing device can be used alone.

[0032] In order to facilitate the spreading of fiber bundles on the road surface through the fiber spreading trough when in use, the present invention performs sealing treatment with the fiber bundles, asphalt and crushed stone to increase the solid resistance and durability. A fiber spreading trough is arranged between the asphalt nozzle and the distributor. The fiber spreading trough is connected to the fiber storage bin through a rectangular pipe. A material collecting and spreading mechanism with spiral material distribution is arranged on the fiber spreading trough. The material collecting and spreading mechanism includes a spiral material distribution shaft. The spiral material distribution shaft is controlled to rotate by a control motor. An electric control valve is arranged at the connection position between the above-mentioned fiber spreading trough and the rectangular pipe. The discharge amount of the fiber bundle to the spiral material distribution shaft is controlled by the electric control valve.

[0033] In order to reduce the pollution of crushed stone dust to the environment as much as possible during use, the present invention adopts dust collection measures. A distance of 1000mm is left between the movable frame and the rear end of the placement compartment. A dust collection device is arranged on the inner wall of the rear end of the placement compartment, and the dust collection device is connected to the placement compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0035] Figure 2 is a schematic diagram of a movable frame with a sealing device according to the present invention;

[0036] Figure 3 It is a partial enlarged schematic diagram of the asphalt mixing device of the present invention;

[0037] Figure 4 It is a schematic diagram of the movable frame of the present invention having a positioning pin rod;

[0038] Figure 5 is a schematic diagram of an asphalt nozzle below the asphalt spreading device of the present invention;

[0039] Figure 6 It is a schematic diagram of the material distributing hopper and the material distributing device of the present invention;

[0040] Figure 7 It is a plan view of the distributor of the present invention;

[0041] Figure 8 It is a schematic diagram of the material collecting and distributing mechanism with spiral material distribution of the present invention. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] like Figure 1-8 As shown, a fiber chip seal device comprises a power locomotive 1 and a placement carriage 2 connected to the power locomotive 1, wherein a track matching with a movable frame 3 is arranged in the placement carriage 2, and a sealing device is arranged on the movable frame 3, and the sealing device comprises a chip receiving bin 4 and an asphalt insulation tank 5 arranged from front to back, and the chip receiving bin 4 and the asphalt insulation tank 5 are respectively connected to the movable frame 3 in a detachable manner;

[0046] A gravel conveying system 6 including a plurality of conveying belts is arranged at the bottom of the gravel receiving bin 4, and the gravel is conveyed to a distribution hopper 7 through the gravel conveying system 6, and the distribution hopper 7 evenly spreads the gravel through a distributor 8;

[0047] The positions at the rear end of the placement carriage 2 and corresponding to the asphalt nozzle and the distributor on the movable frame 3 are hollowed out, and the rear end and both sides of the placement carriage 2 are arranged as a double-door structure.

[0048] An asphalt stirring device 9 is installed in the asphalt insulation tank 5, and the asphalt insulation tank 5 is connected to an asphalt pipeline pumping system, which includes an asphalt pump and a pipeline. The asphalt pipeline pumping system is arranged along the direction of the movable frame 3, and the asphalt pipeline pumping system extends to the asphalt spreading device 10 at the rear of the movable frame 3.

[0049] In order to facilitate the use of the movable frame 3 in conjunction with the placement carriage 2 in the use state, crawler or wheel structures 11 are provided on both sides of the movable frame 3 to cooperate with the tracks provided in the placement carriage 2;

[0050] Positioning pins 12 connected via axle seats are provided on both sides of the crawler or wheel structure 11 on the movable frame 3 , and the positioning pins 12 cooperate with positioning holes on the placement carriage 2 .

[0051] When the movable frame 3 is used in combination with the placement carriage 2 , the movable frame 3 and the placement carriage 2 are fixed by the positioning pin rod 12 .

[0052] The movable frame 3 and the placement carriage 2 can be used in combination according to different actual road conditions, or the movable frame 3 with the sealing device can be used alone.

[0053] In order to facilitate the uniform discharge of crushed stones through the distributor in the use state, the distributor 8 is arranged at the bottom of the placement compartment 2, and the distributor 8 is inclined along the longitudinal direction of the placement compartment 2;

[0054] The distributor 8 is inclined at 45-60 degrees along the longitudinal direction of the placement compartment 2.

[0055] In order to facilitate the asphalt slurry to be evenly distributed as much as possible in the use state, the asphalt spreading device 10 is a bucket-shaped cabin structure arranged at intervals, and the bottom of the asphalt spreading device 10 is connected to one or two rows of vertically downward asphalt nozzles 13, and each row of asphalt nozzles 13 is arranged at equal distances;

[0056] The asphalt nozzle 13 is connected to the asphalt spreading device 10 via a connecting pipe, and an asphalt pipeline pump and a control valve are arranged on the connecting pipe.

[0057] In order to facilitate the use, the distributor 8 is provided to increase the even distribution effect of the crushed stones. The distributor 8 is a hollow groove structure, and the crushed stone flow channel grooves are arranged at intervals on the distributor 8;

[0058] The distributor 8 is fixed to the bottom of the placement carriage 2 through a steel structure truss.

[0059] The gravel flow channel is provided to reduce the falling speed of the gravel, and at the same time, the gravel is spatially dispersed in the space of the gravel flow channel when the gravel is laid through the gravel flow channel structure.

[0060] A material control door is provided below the material distribution hopper 7, and the opening of the material control door is controlled by a cylinder.

[0061] The lateral width of the distributor 8 is the same as that of the equally spaced asphalt nozzles. A baffle plate 14 is disposed below the distributor 8 , and the baffle plate 14 is disposed at an angle and faces one side of the placement carriage 2 .

[0062] The material blocking plate 14 is fixed to the bottom of the carriage 2 through a steel structure truss.

[0063] In order to facilitate dust collection when in use, a distance of 1000 mm is left between the movable frame 3 and the rear end of the placement compartment 2 , and a dust collection device 15 is provided on the inner wall of the rear end of the placement compartment 2 , and the dust collection device 15 is connected to the placement compartment 2 .

[0064] The dust collecting device 15 is a box structure (the dust collecting structure with filtering function in the prior art can be used). The dust collecting device 15 uses a through-type fan to suck air, and the air is sucked into the box through a dust suction pipe and enters the filter bag for filtration. A dust suction pipe is arranged at the lower part of the dust collecting device 15, and a columnar filter bag is arranged inside the box of the dust collecting device 15. The dust enters the interior through the columnar filter bag for filtration and is discharged at the upper part of the central tube of the columnar filter bag (clean air).

[0065] The working principle is that the dust-containing gas is sucked into the box through the dust suction pipe by the fan (the fan adopts a torpedo type fan), enters the filter bag for filtration, and the dust particles are retained on the surface of the filter bag. The filtered purified gas is discharged from the upper air outlet. The diameter of the dust suction port of the dust collector is 100-200mm.

[0066] In order to facilitate the use of the pleated curtain 16 to form a shielding effect, a dust removal space is formed between the pleated curtain 16 and the placement compartment 2 as much as possible to collect gravel dust to avoid air pollution. The rear end of the movable frame 3 is provided with a pleated curtain 16, and the upper end of the pleated curtain 16 is connected to the placement compartment 2 in a detachable manner;

[0067] A dust removal space is formed between the pleated curtain 16 and the placement compartment 2 .

[0068] When the dust removal space is formed between the pleated curtain 16 and the placement compartment 2, the movable frame 3 where the pleated curtain 16 is located and both sides of the placement compartment 2 are closed.

[0069] In order to facilitate the spreading of fiber bundles on the road surface through the fiber spreading trough 17 in use, and to perform sealing treatment with the fiber bundles, asphalt and crushed stone to increase the solid resistance and durability, a fiber spreading trough 17 is provided between the asphalt nozzle and the distributor 8, and the fiber spreading trough 17 is connected to the fiber storage bin through a rectangular pipe (the fiber bundles in the fiber storage bin are discharged into the rectangular pipe by wind pressure or hydraulic pressure, which is not shown in the figure);

[0070] The fiber spreading trough 17 is provided with a material collecting and distributing mechanism 18 with a spiral material distributing mechanism. The material collecting and distributing mechanism 18 includes a spiral material distributing shaft 19. The spiral material distributing shaft 19 is controlled to rotate by a control motor.

[0071] The wine collecting and spreading mechanism 18 is a hollow rectangular structure, and the bottom of the wine collecting and spreading mechanism 18 is open.

[0072] An electric control valve is provided at the connection position between the fiber spreading trough 17 and the rectangular pipe, and the discharge amount of the fiber bundle to the spiral distribution shaft 19 is controlled by the electric control valve.

[0073] An application method of a fiber chip seal device is characterized by comprising the following steps;

[0074] The first step is to prepare emulsified asphalt by mixing the asphalt and the soap solution evenly and keeping the mixture at 60°C-70°C for 0.5-12 hours to prepare the emulsified asphalt;

[0075] In the second step, the emulsified asphalt in step 1 is added into the asphalt insulation tank and stirred in the asphalt insulation tank by an asphalt stirring device, wherein the asphalt stirring device is driven by a motor to rotate a rotating shaft, and stirring rods of different lengths are arranged at intervals on the rotating shaft;

[0076] In the third step, the asphalt insulation tank is connected to an asphalt pipeline pumping system, which includes an asphalt pump and a pipeline. The asphalt pipeline pumping system is arranged along the direction of the movable frame and extends to an asphalt spreading device at the rear of the movable frame. The asphalt spreading device is a bucket-shaped cabin structure arranged at intervals. The bottom of the asphalt spreading device is connected to one or two rows of vertically downward asphalt nozzles. Each row of asphalt nozzles is arranged equidistantly. The asphalt nozzles are connected to the asphalt spreading device through connecting pipes to evenly spread the asphalt on the road surface.

[0077] In the fourth step, a fiber spreading trough is provided between the asphalt nozzle and the distributor, and the fiber spreading trough is connected to the fiber storage bin through a rectangular pipe; after the asphalt is spread through the asphalt nozzle, a gathering and spreading mechanism with a spiral material distribution is provided on the fiber spreading trough for fiber laying, and the gathering and spreading mechanism includes a spiral material distribution shaft, and the spiral material distribution shaft is controlled to rotate by a control motor;

[0078] The fifth step is to transport materials through the material transport vehicle and complete the loading of emulsified asphalt and gravel during the operation. The gravel receiving bin cooperates with the placement carriage to load the gravel into the gravel receiving bin. The volume of the gravel receiving bin is sufficient to carry the gravel required for the synchronous sealing operation between two loading intervals.

[0079] A gravel conveying system including a plurality of conveyor belts is arranged at the bottom of the gravel receiving bin, and the gravel is conveyed to a distribution hopper through the gravel conveying system, and the distribution hopper evenly spreads the gravel through a distributor.

[0080] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0081] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fiber chip seal device, comprising a power locomotive (1) and a placement carriage (2) connected to the power locomotive (1), characterized in that: The placement carriage (2) is provided with a track that cooperates with the movable frame (3), and the movable frame (3) is provided with a sealing device, which includes a crushed stone receiving bin (4) and an asphalt insulation tank (5) arranged from front to back, and the crushed stone receiving bin (4) and the asphalt insulation tank (5) are respectively connected to the movable frame (3) in a detachable manner; A crushed stone conveying system (6) comprising a plurality of conveying belts is disposed at the bottom of the crushed stone receiving bin (4); the crushed stone is conveyed to a distribution hopper (7) through the crushed stone conveying system (6); and the distribution hopper (7) evenly distributes the crushed stone through a distributor (8); An asphalt stirring device (9) is installed in the asphalt insulation tank (5). The asphalt insulation tank (5) is connected to an asphalt pipeline pumping system, and the asphalt pipeline pumping system includes an asphalt pump and a pipeline. The asphalt pipeline pumping system is arranged along the direction of the movable frame (3), and the asphalt pipeline pumping system extends to the asphalt spreading device (10) at the rear of the movable frame (3).

2. The fiber chip seal device according to claim 1, characterized in that: The movable frame (3) is provided with crawler-type or wheel-type structures (11) on both sides thereof, which cooperate with the tracks provided in the placement carriage (2); Positioning pins (12) connected via axle seats are provided on both sides of the crawler or wheel structure (11) on the movable frame (3), and the positioning pins (12) cooperate with positioning holes on the placement carriage (2).

3. The fiber chip seal device according to claim 2, characterized in that: The material distributor (8) is arranged at the bottom of the placement carriage (2), and the material distributor (8) is arranged obliquely along the longitudinal direction of the placement carriage (2); The distributor (8) is inclined at 45-60 degrees along the longitudinal direction of the placement carriage (2).

4. The fiber chip seal device according to claim 3, characterized in that: The asphalt spreading device (10) is a bucket-shaped cabin structure arranged at intervals, and one or two rows of asphalt nozzles (13) pointing vertically downward are connected to the bottom of the asphalt spreading device (10), and each row of asphalt nozzles (13) are arranged at equal distances; The asphalt nozzle (13) is connected to the asphalt spreading device (10) via a connecting pipeline, and an asphalt pipeline pump and a control valve are arranged on the connecting pipeline.

5. The fiber chip seal device according to claim 4, characterized in that: The distributor (8) is of a hollow slot structure, and gravel flow channel slots are arranged at intervals on the distributor (8); A material control door is arranged below the material distribution hopper (7), and the opening of the material control door is controlled by a cylinder.

6. The fiber chip seal device according to claim 5, characterized in that: The lateral width of the distributor (8) is the same as the lateral width of the equally spaced asphalt nozzles. A baffle plate (14) is arranged below the distributor (8), and the baffle plate (14) is arranged at an angle and faces one side of the placement carriage (2).

7. The fiber chip seal device according to claim 6, characterized in that: The movable frame (3) is 1000 mm away from the rear end of the placement compartment (2), and a dust suction device (15) is provided on the inner wall of the rear end of the placement compartment (2), and the dust suction device (15) is connected to the placement compartment (2).

8. The fiber chip seal device according to claim 7, characterized in that: A pleated curtain (16) is provided at the rear end of the movable frame (3), and the upper end of the pleated curtain (16) is connected to the placement carriage (2) in a detachable manner; A dust removal space is formed between the pleated curtain (16) and the placement compartment (2).

9. The fiber chip seal device according to claim 8, characterized in that: A fiber spreading trough (17) is provided between the asphalt nozzle and the distributor (8), and the fiber spreading trough (17) is connected to the fiber storage bin via a rectangular pipe; The fiber spreading trough (17) is provided with a material collecting and distributing mechanism (18) with a spiral material distribution. The material collecting and distributing mechanism (18) comprises a spiral material distribution shaft (19). The spiral material distribution shaft (19) is controlled to rotate by a control motor.

10. An application method of the fiber chip seal device according to any one of claims 1 to 9, characterized in that: The steps include: The first step is to prepare emulsified asphalt by mixing the asphalt and the soap solution evenly and keeping the mixture at 60°C-70°C for 0.5-12 hours to prepare the emulsified asphalt; In the second step, the emulsified asphalt in step 1 is added into the asphalt insulation tank and stirred in the asphalt insulation tank by an asphalt stirring device, wherein the asphalt stirring device is driven by a motor to rotate a rotating shaft, and stirring rods of different lengths are arranged at intervals on the rotating shaft; In the third step, the asphalt insulation tank is connected to an asphalt pipeline pumping system, which includes an asphalt pump and a pipeline. The asphalt pipeline pumping system is arranged along the direction of the movable frame and extends to an asphalt spreading device at the rear of the movable frame. The asphalt spreading device is a bucket-shaped cabin structure arranged at intervals. The bottom of the asphalt spreading device is connected to one or two rows of vertically downward asphalt nozzles. Each row of asphalt nozzles is arranged equidistantly. The asphalt nozzles are connected to the asphalt spreading device through connecting pipes to evenly spread the asphalt on the road surface. In the fourth step, a fiber spreading trough is provided between the asphalt nozzle and the distributor, and the fiber spreading trough is connected to the fiber storage bin through a rectangular pipe; after the asphalt is spread through the asphalt nozzle, a gathering and spreading mechanism with a spiral material distribution is provided on the fiber spreading trough for fiber laying, and the gathering and spreading mechanism includes a spiral material distribution shaft, and the spiral material distribution shaft is controlled to rotate by a control motor; The fifth step is to transport materials through the material transport vehicle and complete the loading of emulsified asphalt and gravel during the operation. The gravel receiving bin cooperates with the placement carriage to load the gravel into the gravel receiving bin. The volume of the gravel receiving bin is sufficient to carry the gravel required for the synchronous sealing operation between two loading intervals. A gravel conveying system including a plurality of conveyor belts is arranged at the bottom of the gravel receiving bin, and the gravel is conveyed to a distribution hopper through the gravel conveying system, and the distribution hopper evenly spreads the gravel through a distributor.

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