CN108118584B

CN108118584B - Injection type asphalt spraying device

Info

Publication number: CN108118584B
Application number: CN201810073540.0A
Authority: CN
Inventors: 夏英志; 唐虎; 李颖奎; 郭青; 范飞飞; 杨鹏飞; 尹江燕
Original assignee: Rizhao Road Materials Co Ltd
Current assignee: Rizhao Road Materials Co., Ltd
Priority date: 2018-01-25
Filing date: 2018-01-25
Publication date: 2020-04-24
Anticipated expiration: 2038-01-25
Also published as: CN108118584A

Abstract

The invention relates to a penetration type asphalt spraying device, which effectively solves the problems of uneven asphalt spraying and incomplete equipment cleaning at present; the technical scheme includes that the spraying device comprises a first spraying pipe and a second spraying pipe, the two spraying pipes are arranged in parallel front and back, a plurality of spray heads are evenly distributed on the two spraying pipes, a first scraper is installed in the first spraying pipe, a second scraper is installed in the second spraying pipe, two winding drums are arranged outside the spraying pipes, steel wire ropes are arranged on the winding drums, the steel wire ropes can be pulled by rotation of the winding drums, the steel wire ropes are connected with the two spraying pipes in series and can drive the two scraping plates to move synchronously, the two winding drums are driven by the same driving disc, and the driving disc drives the two winding drums to rotate for half a circle alternately within one circle, so that the steel wire ropes reciprocate to drive the scraping plates to clean the inner walls of the spraying pipes; the invention has novel concept, ingenious structure, obvious effect, convenient use and strong practicability.

Description

Injection type asphalt spraying device

Technical Field

The invention relates to the field of road construction, in particular to an injection type asphalt spraying device.

Background

In the prior art, in order to overcome the defects of the high-temperature performance and the low-temperature performance of the rigid pavement and the flexible pavement, a pavement which takes a cement-asphalt composite material as a binder is developed, the pavement has the advantages of the rigid pavement and the flexible pavement and shows the mechanical characteristics of semi-rigidity and semi-flexibility, and the pavement is generally called as a semi-rigid pavement.

The main construction methods of the semi-rigid pavement include a mixing method and an injection method, wherein the injection method refers to a method of injecting asphalt mixture after paving a matrix such as broken stone, asphalt spraying equipment is needed when injecting asphalt, the existing asphalt spraying equipment adopts a spraying pipe provided with a row of spray heads to spray asphalt, and due to pressure drop along the length direction of the pipe, the spray head close to a feed port has large spraying pressure, the asphalt spraying amount is large, the spray head far away from the feed port has small spraying pressure, the asphalt spraying amount is small, and the asphalt is unevenly sprayed along the length direction of the spraying pipe; in addition, because the direction of gaps among the paved macadam is extremely irregular, if asphalt is sprayed in one direction, the asphalt cannot be directly poured into the gaps in the direction opposite to the spraying direction and only can permeate into the gaps by flowing, so that the gaps have the possibility of not effectively penetrating into the asphalt, weak points are formed, and the pavement can be damaged by taking the weak points as the center in the future; after the asphalt is sprayed, the residual asphalt in the spraying pipe needs to be removed, otherwise the residual asphalt is condensed in the spraying pipe to block the spraying pipe to influence the subsequent use, the prior cleaning method is to clean the spraying pipe by introducing diesel oil into the spraying pipe after the spraying is finished, the cleaning is slow and not thorough, the asphalt still adheres to the inner wall of the spraying pipe stubborn and blocks the spraying pipe after the spraying is finished, and the method wastes a large amount of diesel oil and increases the cost.

Therefore, it is an urgent problem to design a new asphalt spraying apparatus to overcome the above-mentioned drawbacks.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the penetration type asphalt spraying device, which effectively solves the problems of uneven asphalt spraying, ineffective gap filling and incomplete equipment cleaning at present.

The technical scheme for solving the problem is that the penetration type asphalt spraying device comprises a first spraying pipe and a second spraying pipe, wherein the two ends of the first spraying pipe and the second spraying pipe are sealed, the length and the diameter of the two spraying pipes are identical and are arranged side by side from front to back, a first feed inlet is formed in the left end of the first spraying pipe, a second feed inlet is formed in the right end of the second spraying pipe, a plurality of spray heads are uniformly distributed on the two spraying pipes along the length of a rod, and the positions and the intervals of the spray heads on the two spraying pipes are identical;

a plurality of first scrapers which are in sliding fit with the inner wall of the first distribution pipe are uniformly distributed in the first distribution pipe along the pipe length, a plurality of second scrapers which are in sliding fit with the inner wall of the second distribution pipe are uniformly distributed in the second distribution pipe along the pipe length, and the first scrapers and the second scrapers are both circular; two winding drums with the same diameter are arranged outside the sprinkling pipe, the axes of the two winding drums are horizontal and are arranged at intervals from front to back, and the axes of the two winding drums are staggered in the up-down direction; the interval of the two winding drums is provided with a driving disc parallel to the end faces of the winding drums, the driving disc is not in contact with the two winding drums, the driving disc and the two winding drums are eccentrically arranged, the distances between the centers of the driving disc and the axes of the two winding drums are the same, the axis of the front winding drum is positioned above the axis of the driving disc, the axis of the rear winding drum is positioned below the axis of the driving disc, the rear end face of the front winding drum is provided with a convex first stop block, the front end face of the rear winding drum is provided with a convex second stop block, the front surface of the driving disc is provided with a convex first driving block, the rear surface of the driving disc is provided with a convex second driving block, and the two driving blocks are; two spill intraductal series connection of cloth and worn a wire rope, the wire rope head end is fixed and twine on the reel in the place ahead, and the tail end penetrates the right-hand member from first spilling a cloth pipe left end and wears out, then spills a cloth pipe right-hand member from the second and penetrates the left end and wear out, fixed and twine on the reel in the place ahead at last and wind to the same with the head end, and wire rope passes a plurality of first scraper blades and a plurality of second scraper blades in proper order and can drive a plurality of first scraper blades and a plurality of second scraper blade synchronous motion.

The asphalt is uniformly sprayed, can be more effectively injected into a gap, and the asphalt distribution pipe is thoroughly and quickly cleaned after being used, so that the asphalt is prevented from being bonded and blocked in the distribution pipe; the invention has novel concept, ingenious structure, obvious effect, convenient use and strong practicability.

Drawings

FIG. 1 is a top cross-sectional view of the position of the distribution pipe of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a partial cross-sectional view at the end cap.

FIG. 4 is a left side view of the spray heads on two of the distribution pipes spraying asphalt.

Fig. 5 is a schematic diagram of relative positions of the second driving block and the second stopper in a process that the driving disc drives the rear spool to rotate counterclockwise, wherein a dotted line represents a motion track of the second driving block and the second stopper.

Fig. 6 is a schematic diagram of relative positions of the first driving block and the first stopper during counterclockwise rotation of the spool driven by the driving disc, where a dotted line represents a motion track of the first driving block and the first stopper.

Fig. 7 is a left side cross-sectional view of the drive disc and spool with the two drive blocks and two stops at the upper quadrant point.

Fig. 8 is a left side cross-sectional view of the drive disc and spool with the two drive blocks and two stops at the lower quadrant point.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

As shown in fig. 1 to 8, the invention comprises a first sprinkling pipe 1 and a second sprinkling pipe 2 with two closed ends, wherein the two sprinkling pipes have the same length and diameter and are arranged side by side front and back, the left end of the first sprinkling pipe 1 is provided with a first feed inlet 3, the right end of the second sprinkling pipe 2 is provided with a second feed inlet 4, the two sprinkling pipes are uniformly provided with a plurality of spray heads 5 along the length of the rod, and the positions and the intervals of the spray heads 5 on the two sprinkling pipes are the same;

a plurality of first scrapers 6 which are in sliding fit with the inner wall of the first spraying pipe 1 are uniformly distributed in the first spraying pipe along the length of the pipe, a plurality of second scrapers 7 which are in sliding fit with the inner wall of the second spraying pipe 2 are uniformly distributed in the second spraying pipe along the length of the pipe, and the first scrapers 6 and the second scrapers 7 are both circular; two winding drums 8 with the same diameter are arranged outside the sprinkling pipe, the axes of the two winding drums 8 are horizontal and are arranged at intervals front and back, and the axes of the two winding drums 8 are staggered in the up-down direction; a driving disc 9 parallel to the end surfaces of the two winding drums 8 is arranged at the interval of the two winding drums 8, the driving disc 9 is not in contact with the two winding drums 8, the driving disc 9 and the two winding drums 8 are eccentrically arranged, the distances between the centers of the driving disc 9 and the axes of the two winding drums 8 are the same, the axis of the front winding drum 8 is positioned above the axis of the driving disc 9, the axis of the rear winding drum 8 is positioned below the axis of the driving disc 9, a convex first stop block 10 is arranged on the rear end surface of the front winding drum 8, a convex second stop block 11 is arranged on the front end surface of the rear winding drum 8, a convex first driving block 12 is arranged on the front surface of the driving disc 9, a convex second driving block 13 is arranged on the rear surface of the driving disc 9, and the two; two are spilled intraductal series connection and have been worn a wire rope 14, wire rope 14 head end is fixed and twine on the reel 8 in the place ahead, the tail end penetrates the right-hand member from first 1 left ends of spilling the cloth pipe and wears out, then it penetrates the left end to wear out to spill 2 right-hand members of pipe from the second, it is fixed at last and twine on the reel 8 in the place ahead and with the head end around to the same, wire rope 14 passes a plurality of first scrapers 6 and a plurality of second scraper blade 7 in proper order and can drive a plurality of first scrapers 6 and a plurality of second scraper blade 7 simultaneous movement.

In order to make the asphalt penetrate into the gaps of the crushed stones to the maximum extent, the spray heads 5 on the first distribution pipe 1 incline backwards, and the spray heads 5 on the second distribution pipe 2 incline forwards.

Two ends of the first sprinkling pipe 1 and two ends of the second sprinkling pipe 2 are respectively connected with an end cover 15 through threads, two ends of the sprinkling pipes are sealed by the end covers 15, and the end surface of each end cover 15 is provided with a first rope hole 16 for a steel wire rope 14 to pass through.

In order to ensure that two ends of the sprinkling pipe can be effectively sealed when the asphalt is sprinkled, a conical sealing ring 17 is arranged in the end cover 15, the small end of the conical sealing ring 17 faces inwards, a conical expanding opening 18 matched with the conical sealing ring 17 is arranged on the inner wall of the opening of the sprinkling pipe, and a second rope hole 19 for the steel wire rope 14 to pass through is formed in the center of the conical sealing ring 17.

In order to realize synchronous movement and stress balance of the first scrapers 7 and the second scrapers 7 along with the steel wire rope 14, two ends of the first scrapers 6 and the second scrapers 7 are respectively connected and fixed on the steel wire rope 14 through a plurality of branch ropes 20 which are uniformly distributed on the circumference.

In order to enable the scrapers to scrape the whole length of the sprinkling pipe without intervals, one half of the circumference of the winding reel 8 is larger than or equal to the distance between two adjacent scrapers.

The outer circle surface of the driving disc 9 is provided with gear teeth, the gear teeth are engaged with a gear 21, and the gear 21 is connected with a driving device 22.

When the asphalt spraying device is used specifically, the feeding holes of the two spraying pipes are connected to an asphalt tank and a water tank through an asphalt pipeline, hot-melted asphalt is filled in the asphalt tank, and water is filled in the water tank; two ends of the steel wire rope 14 are wound on the two winding drums 8 and are always in a tensioned state, and when the driving device 22 is not started, the two stop blocks and the two driving blocks are positioned at the upper quadrant points of the respective movement circular tracks; when spraying asphalt, firstly, an asphalt pump on an asphalt pipeline is started, and then all the switch valves on the pipeline are controlled to enable the asphalt to circulate in the pipeline to preheat the spraying pipeline.

After preheating is finished, controlling a switch valve to enable a passage to be formed between an asphalt tank and a spreading pipe, and enabling asphalt in the asphalt tank to respectively enter a first spreading pipe 1 and a second spreading pipe 2 through a first feeding hole 3 and a second feeding hole 4 under the action of an asphalt pump and then to be sprayed out through a spray head 5 on the spreading pipe; because of the pressure drop along the length direction of the sprinkling pipe, the asphalt spraying pressure of the nozzle 5 close to the feeding port is higher, and the asphalt spraying pressure of the nozzle 5 far away from the feeding port is lower, so that the asphalt sprinkling of a single sprinkling pipe along the length direction of the pipe is uneven, namely the asphalt sprinkling quantity of the left end of the first sprinkling pipe 1 is greater than that of the right end, and the asphalt sprinkling quantity of the right end of the second sprinkling pipe 2 is greater than that of the left end; at the same position in the left-right direction, the pressure drop of the spray head 5 on the first distribution pipe 1 is the pressure drop of the length of the distribution pipe at the left side of the spray head 5, the pressure drop of the spray head 5 on the second distribution pipe 2 is the pressure drop of the length of the distribution pipe at the right side of the spray head 5, the pressure drop of the spray head 5 on the first distribution pipe 1 and the pressure drop of the spray head 5 on the second distribution pipe 2 are just the pressure drop of the full length of the distribution pipe, namely, the total pressure drop of the two spray heads 5 on the two distribution pipes is the same at any position, namely, the sum of the asphalt spraying amount of the two spray heads 5 at any position is the same, the first distribution pipe 1 sprays for the first time in the front, the second distribution pipe 2 sprays for the second time in the rear, and after the two times of spraying, the asphalt spraying amount at any position is the sum of the asphalt spraying amount of the spray heads 5 on the two distribution pipes, namely, the positions.

In addition, because the direction of gaps among the paved macadam is extremely irregular, if asphalt is sprayed in one direction, the asphalt cannot be directly poured into the gaps in the direction opposite to the spraying direction and only can permeate into the gaps by flowing, so that the gaps have the possibility of not effectively penetrating into the asphalt, weak points are formed, and the road surface can be damaged by taking the weak points as the center in the future; the spray head 5 on the first sprinkling pipe 1 is inclined backwards to spray asphalt, the spray head 5 on the second sprinkling pipe 2 is inclined forwards to spray asphalt, and the asphalt can be ensured to be directly poured into the gap to the maximum extent by spraying from two directions, so that the gap filling is more effective.

After finishing spraying, closing a passage between the asphalt tank and the distributing pipe, operating the asphalt pump for a period of time to completely discharge residual asphalt in the pipeline, switching the pipeline to a water tank to form a passage between the water tank and the distributing pipe, unscrewing end covers 15 at two ends of the first distributing pipe 1 and the second distributing pipe 2, enabling a conical flaring 18 at the pipe orifice of the distributing pipe not to extrude a conical sealing ring 17, loosening a steel wire rope 14 through a second rope hole 19 on the conical sealing ring 17, enabling the steel wire rope 14 to freely slide in a first rope hole 16 and a second rope hole 19, and starting a driving device 22; in the initial position, the two stoppers and the two driving blocks are both positioned at the upper quadrant point of the respective circular motion tracks, and the front spool 8 and the front driving disc 9 are eccentric and the axis is positioned above the axis of the driving disc 9, so that the circular motion track of the first stopper 10 and the circular motion track of the first driving block 12 are farthest away at the upper quadrant point, that is, the radial distance between the first stopper 10 and the first driving block 12 is farthest, the outer side of the first driving block 12 is aligned with the inner side of the first stopper 10, and the first driving block 12 can just pass over the first stopper 10 without rotating; on the contrary, since the rear spool 8 and the driving disc 9 are eccentric and the axis is located below the axis of the driving disc 9, the radial distance between the second driving block 13 and the second stopper 11 is the shortest at the upper quadrant point, and at this time, the outer side of the second driving block 13 is flush with the outer side of the second stopper 11, that is, the second driving block 13 and the second stopper 11 are in contact with each other to push the second stopper 11 to rotate; after the driving device 22 is started, the driving device 22 drives the driving disc 9 to rotate through the gear 21, the driving disc 9 pushes the second stop block 11 through the second driving block 13 to drive the winding reel 8 at the rear to rotate anticlockwise to start winding, meanwhile, the steel wire rope 14 pulls the winding reel 8 at the front to rotate clockwise to pay off, the tail end of the winding reel is wound up and paid off, so that the steel wire rope 14 is pulled, the steel wire rope 14 drives the first scraping plates 6 on the steel wire rope to move rightwards, the second scraping plates 7 move leftwards, the first scraping plates 6 and the second scraping plates 7 respectively scrape the inner wall of the second spreading pipe 2 of the first spreading pipe 1, asphalt adhered on the inner wall is scraped, meanwhile, the asphalt in the water tank is pumped into the two spreading pipes through the asphalt pump, and water flow flushes the asphalt scraped by the scraping plates from; along with the rotation of the driving disc 9, the second driving block 13 drives the second stop block 11 to gradually rotate from the upper quadrant point to the lower quadrant point anticlockwise, in the process, the second driving block 13 gradually moves towards the circle center relative to the second stop block 11, when the second driving block 13 rotates to the lower quadrant point, the outer side of the second driving block 13 is just aligned with the inner side of the second driving block 13, namely the outer side of the second driving block 13 is separated from the inner side of the second driving block 13, and the second driving block 13 continues to rotate and can not drive the second stop block 11 to rotate any more; in the process, when the winding reel 8 at the rear rotates anticlockwise to take up, the wire rope 14 pulls the winding reel 8 at the front to rotate clockwise to pay off, because the two winding reels 8 have the same diameter, the angular velocities of the two winding reels 8 are the same, the first stop block 10 rotates clockwise along with the winding reel 8 at the front and reaches the lower quadrant point with the second stop block 11, the angular velocities are opposite to the upper quadrant point, the second driving block 13 and the second stop block 11 are separated at the lower quadrant point, the first driving block 12 is attached to the first stop block 10, the driving disc 9 continues to rotate, the first driving block 12 drives the winding reel 8 at the front to rotate anticlockwise through the first stop block 10 to start take up, the wire rope 14 pulls the winding reel 8 at the rear to rotate clockwise to pay off, the head end and the tail end of the wire rope 14 to pay off so as to pull the wire rope 14, the wire rope 14 drives the first scrapers 6 on the, the first scraper 6 and the second scraper 7 respectively scrape the inner walls of the first sprinkling pipe 1 and the second sprinkling pipe 2, when the first driving block 12 and the first stop block 10 rotate anticlockwise to an upper quadrant point, the second stop block 11 rotates clockwise to an upper quadrant point, the first driving block 12 is separated from the first stop block 10, the second driving block 13 is attached to the second stop block 11, and a cycle is finished; the driving disc 9 continues to rotate to drive the rear winding reel 8 to rotate anticlockwise, the front winding reel 8 is pulled by the steel wire rope 14 to rotate clockwise in a reverse mode, and then the next cycle begins; through the attachment and the disengagement of the two driving blocks and the two stop blocks, the driving disc 9 alternately drives the front and the rear winding reels 8 to rotate 180 degrees in one cycle, so that the steel wire rope 14 is pulled in a reciprocating manner at one time; the driving disk 9 rotates continuously, thereby driving a plurality of scraping plates to do reciprocating motion for a plurality of times to scrape the inner wall of the sprinkling pipe.

After several cycles, the residual asphalt in the sprinkling pipe is cleaned, at the moment, the driving device is closed, the driving disc 9 and the winding reel 8 stop rotating, the plurality of scrapers stop moving, then the asphalt pump is stopped, each switch valve is closed, finally the end covers 15 at the two ends of the sprinkling pipe are screwed, and when the end covers 15 are screwed inwards, the conical sealing ring 17 is extruded and deformed by the conical flaring 18 at the pipe opening of the sprinkling pipe, so that the second rope hole 19 is contracted to compress the steel wire rope 14, and sealing is realized; and ending the whole working process so as to be used for the next time.

The invention has the following remarkable advantages:

1. uniformly spraying asphalt; the invention designs two distributing pipes which are arranged side by side, so that the asphalt spraying pressures at any positions of the two distributing pipes are complementary, the asphalt spraying amount at any position along the length direction of the pipes is the same, the problem that the asphalt spraying is uneven due to the pressure drop of the traditional asphalt distributing pipe along the length direction of the pipes is completely solved, no pressure stabilizing equipment or pressure compensation equipment is added, no additional control mechanism is needed, the cost and the operation difficulty are not increased, the conception is ingenious, and the use is simple and effective.

2. The asphalt can be more effectively penetrated into the broken stone gap; according to the invention, while two distributing pipes arranged side by side are designed, the direction of the spray head 5 on each distributing pipe is also adjusted, so that the spraying directions of the spray heads 5 on the two distributing pipes are opposite, so that asphalt can be more effectively and directly injected into gravel gaps in different directions from two directions, sufficient asphalt can be ensured to be injected into the gravel gaps, and the problem that the asphalt cannot effectively flow and permeate into each gap before being cooled to form a weak point during traditional one-way spraying is avoided, and the pavement is broken from the weak point.

3. The invention can clean the sprinkling pipe more thoroughly and effectively; the traditional asphalt spraying equipment mostly only relies on the dissolution and washing effects of diesel oil to wash residual asphalt in the sprinkling pipe, the method is slow in washing, long-time washing is needed to reach the washing requirement, the washing is not thorough, and a large amount of diesel oil is wasted.

In conclusion, the asphalt is uniformly sprayed, can be more effectively injected into a gap, and the asphalt distribution pipe is thoroughly and quickly cleaned after being used, so that the asphalt is prevented from being stuck and blocked in the distribution pipe; the invention has novel concept, ingenious structure, obvious effect, convenient use and strong practicability.

Claims

1. A penetration type asphalt spraying device comprises a first spraying pipe (1) and a second spraying pipe (2) with two closed ends, and is characterized in that the two spraying pipes are the same in length and diameter and are arranged side by side from front to back, a first feeding hole (3) is formed in the left end of the first spraying pipe (1), a second feeding hole (4) is formed in the right end of the second spraying pipe (2), a plurality of spray heads (5) are uniformly distributed on the two spraying pipes along the length of a rod, and the positions and the intervals of the spray heads (5) on the two spraying pipes are the same;

a plurality of first scrapers (6) which are in sliding fit with the inner walls of the first sprinkling pipes (1) are uniformly distributed in the first sprinkling pipes along the pipe length, a plurality of second scrapers (7) which are in sliding fit with the inner walls of the second sprinkling pipes (2) are uniformly distributed in the second sprinkling pipes along the pipe length, and the first scrapers (6) and the second scrapers (7) are both circular; two winding drums (8) with the same diameter are arranged outside the sprinkling pipe, the axes of the two winding drums (8) are horizontal and are oppositely arranged at intervals from front to back, and the axes of the two winding drums (8) are staggered in the up-down direction; a driving disc (9) parallel to the end faces of the winding drums (8) is arranged at the interval of the two winding drums (8), the driving disc (9) is not in contact with the two winding drums (8), the driving disc (9) and the two winding drums (8) are both eccentrically arranged, the distance between the centers of the driving disc (9) and the axes of the two winding drums (8) is the same, the axis of the front winding drum (8) is located above the axis of the driving disc (9), the axis of the rear winding drum (8) is located below the axis of the driving disc (9), a first protruding stop block (10) is arranged on the rear end face of the front winding drum (8), a second protruding stop block (11) is arranged on the front end face of the rear winding drum (8), a first protruding driving block (12) is arranged on the front surface of the driving disc (9), a second protruding driving block (13) is arranged on the rear surface of the driving disc (9), and; two are spilled intraductal series connection and have been worn wire rope (14), wire rope (14) head end is fixed and twine on reel (8) in the place ahead, the tail end penetrates the right-hand member from first spilling cloth pipe (1) left end and wears out, then spill cloth pipe (2) right-hand member from the second and penetrate the left end and wear out, it is fixed at last and twine on reel (8) at the rear and around to the same with the head end, wire rope (14) pass a plurality of first scraper blades (6) and a plurality of second scraper blade (7) in proper order and can drive a plurality of first scraper blades (6) and a plurality of second scraper blade (7) simultaneous movement.

2. A penetration asphalt spraying apparatus according to claim 1, wherein the spraying heads (5) of the first spraying pipe (1) are inclined backward, and the spraying heads (5) of the second spraying pipe (2) are inclined forward.

3. A penetration type asphalt spraying apparatus according to claim 1, wherein two ends of the first spreading pipe (1) and two ends of the second spreading pipe (2) are respectively connected with an end cap (15) through threads, the end caps (15) close two ends of the spreading pipes, and the end face of the end cap (15) is provided with a first rope hole (16) for the steel wire rope (4) to pass through.

4. A penetration type asphalt spraying device according to claim 3, wherein a conical sealing ring (17) is installed in the end cover (15), the small end of the conical sealing ring (17) faces inwards, a conical flaring (18) matched with the conical sealing ring (17) is arranged on the inner wall of the opening of the spraying pipe, and a second rope hole (19) for the steel wire rope (14) to pass through is formed in the center of the conical sealing ring (17).

5. A penetration type asphalt spraying apparatus according to claim 1, wherein both ends of the first scraper (6) and the second scraper (7) are respectively connected and fixed on the steel wire rope (14) through a plurality of branch ropes (20) which are evenly distributed on the circumference.

6. A penetration asphalt spraying apparatus according to claim 1, wherein one half of the circumference of the winding reel (8) is equal to or greater than the distance between two adjacent screeds.

7. A penetration type asphalt spraying device according to claim 1, wherein the outer circumferential surface of the driving plate (9) is provided with gear teeth, the gear teeth are engaged with a gear (21), and the gear (21) is connected with a driving device (22).