CN113089421A

CN113089421A - Asphalt concrete road unmanned paver and construction method thereof

Info

Publication number: CN113089421A
Application number: CN202110462528.0A
Authority: CN
Inventors: 廖章军
Original assignee: Hunan Liling Tongda Construction Engineering Co ltd
Current assignee: Hunan Liling Tongda Construction Engineering Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-07-09

Abstract

The utility model relates to an asphalt concrete road unmanned paver and construction method thereof, the vehicle comprises a vehicle body, one side of automobile body sets up to the discharge gate, the automobile body rotates in discharge gate department and is connected with the fixed axle, the fixed axle is along the width direction parallel arrangement of automobile body, one side of fixed axle is provided with the rotation piece, fixedly connected with adsorption tank on the fixed axle, adsorption tank has seted up the dust absorption mouth on keeping away from one side of fixed axle, the space claps the range according to the distance apart from the dust absorption mouth and arranges and set gradually into the chamber of breathing in, adsorb the chamber and purify the chamber, it is provided with the absorption piece to adsorb the intracavity, it is provided with the purification piece to purify the intracavity, be connected with the suction fan on the lateral wall of chamber length direction one end. This application has when reducing bituminous paving and lays, and the effect of the harm of flue gas to constructor health is reduced to the toxic substance content of heating pitch volatile substance.

Description

Asphalt concrete road unmanned paver and construction method thereof

Technical Field

The application relates to the field of road engineering, in particular to an asphalt concrete road unmanned paver and a construction method thereof.

Background

The paver is construction equipment mainly used for paving various materials in a base cavity and a surface cavity on a highway. The paving machine completes paving work by matching various systems, and mainly comprises a walking system, a hydraulic system, a material conveying and distributing system and the like. The asphalt paver evenly paves the asphalt mixture on the roadbed cavity and carries out preliminary compaction and leveling. The device is divided into a crawler type and a tire type. Consists of two parts of traction, paving, compaction and ironing. The former includes frame, power unit, walking unit, material hopper, material gate, scraper conveyer, screw spreader, driver's cab, etc. The latter comprises a traction arm, a compaction mechanism and an ironing device (comprising an ironing plate, a thickness regulator, an arch degree regulator, a heating device and the like).

Chinese patent with the publication number of grant CN204753330U discloses a novel asphalt paving machine for asphalt paving, including the pitch export, the vibrations hydraulic pump, preceding fender ironing ware, the flow detection meter, pitch export top is provided with paving machine solenoid valve, paving machine solenoid valve top is provided with the paver hopper jar, preceding fender ironing ware top is provided with the spiral paver, spiral paver top is provided with the pitch storage case, pitch storage case below is provided with the flow detection meter, flow detection meter below is provided with the hopper hydraulic pump, hopper hydraulic pump below is provided with pitch ejection of compact gate, pitch ejection of compact gate below is provided with operation control panel, operation control panel below is provided with the paver casing. Asphalt enters from an asphalt storage tank, the vibration smashing device finely smashes the asphalt, the spiral paver lays the asphalt, the front baffle ironing device irones the asphalt, and the flow detector detects the flow of the paved asphalt.

In view of the above-mentioned related art, the inventors believe that paving requires heating of asphalt, and conventional asphalt pavement releases the following gases (including but not limited to) at high temperatures: nitrogen oxides (NOx), sulfur oxides (SOx), carbon monoxide (CO), Particulate Matter (PM), and Volatile Organic Compounds (VOC), where most of the gas is harmful to the human body, frequent contact by road workers increases their probability of illness.

Disclosure of Invention

In order to reduce the content of toxic substances of volatile substances of heated asphalt and reduce the harm of smoke to the bodies of constructors when asphalt pavements are paved, the application provides the asphalt concrete pavement unmanned paver and the construction method thereof.

In a first aspect, the unmanned paving machine for asphalt concrete roads provided by the application adopts the following technical scheme:

an unmanned asphalt concrete road paver comprises a vehicle body, wherein a discharge hole is formed in one side of the vehicle body, a fixed shaft is rotatably connected to the discharge hole of the vehicle body, the fixed shaft is arranged in parallel along the width direction of the vehicle body, a rotating member is arranged on one side of the fixed shaft, an adsorption box is fixedly connected to the fixed shaft, a dust suction port is formed in one side, away from the fixed shaft, of the adsorption box, and a space in the adsorption box is sequentially provided with a suction cavity, an adsorption cavity and a purification cavity along the dust suction port; the adsorption cavity is internally provided with an adsorption piece, the purification cavity is internally provided with a purification piece, and one side of the purification cavity far away from the adsorption cavity is provided with a gas outlet.

Through adopting above-mentioned technical scheme, the workman controls automobile body slow moving, the pitch that the heating is good falls from the discharge gate and lays subaerial, use and rotate a piece rotation fixed axle, according to the position adjustment of flue gas the dust absorption mouth place direction of adsorption tank, guarantee to adsorb the flue gas before the flue gas is totally diffused, the flue gas is adsorbed back in getting into the adsorption tank, pass through the chamber of breathing in proper order, adsorb chamber and-purify the chamber, the flue gas is adsorbed a piece absorption particulate matter impurity and some harmful substance in the adsorption tank, purify the piece with the peculiar smell filtering in the flue gas, gas after a series of purification is discharged from the gas outlet, reduce the harm degree of flue gas, and then reduce the harm of flue gas direct emission to the workman's health.

Optionally, a suction fan is connected to the side wall of one end of the air suction cavity in the length direction, a partition plate is arranged on one side, away from the side wall of the air suction cavity, of the suction fan, the partition plate is fixedly connected to the inner wall of the adsorption box, the suction fan is connected with a suction pipe, a suction opening is formed in the partition plate, and one end of the suction pipe is communicated with the suction opening.

Through adopting above-mentioned technical scheme, start the suction fan, the suction fan is spacing in certain area by the baffle, the aspiration channel is fixed and is stretched into the inlet scoop on the baffle and induced drafts, the gas that will breathe in the intracavity is inhaled, the air flow rate of breathing in the intracavity is greater than the air flow rate outside the adsorption box, the intracavity of breathing in produces the negative pressure and will adsorb the pitch volatile substance outside the box and inhale the chamber of breathing in, the fog that is inhaled the intracavity gets into and adsorbs the intracavity, it filters the absorption by the adsorption member to adsorb the intracavity, filter the toxic substance in the fog, the fog after filtering gets into and purifies the chamber, it purifies the absorption once more by the purification member, in the one side exhaust air of chamber at last follow purification, through purifying the content that reduces the toxic substance in the fog layer upon layer, reduce the harmful effects of pitch volatile substance.

Optionally, a filter plate is fixedly connected to the opening of the air suction pipe, and filter cloth is detachably connected to the filter plate.

Through adopting above-mentioned technical scheme, the particulate matter separation in filter plate and filter cloth with the flue gas is outside, prevents that solid flue gas from getting into the suction fan, can dismantle after the filter cloth uses a period and wash or change, the permanent use of being convenient for.

Optionally, the adsorption part comprises a plurality of porous solid plates, the side wall of the adsorption tank is provided with a limiting part for limiting the porous fixed plate, the side wall of the porous fixed plate is abutted against the side wall of the adsorption tank, and a filter element is arranged between the adjacent porous fixed plates.

Through adopting above-mentioned technical scheme, fix porous solid board joint in the adsorption tank through the locating part, porous fixed plate gathers or condenses on the surface with one or more components in the fluid mixture, reach the operation of separation purpose, the rethread filter core collides with tar fine mist granule in the pitch flue gas and adsorbs the tar fine mist granule in the flue gas, adsorb most of the poisonous material in the pitch volatile substance, through the combination of two porous fixed plate centre gripping filter cores, carry out comprehensive absorption to the volatile substance, reduce because the flue gas flows the too fast possibility that leads to absorbing incompleteness, the messenger is better to the filter effect of volatile substance.

Optionally, the limiting part includes a plurality of abutting plates symmetrically disposed on two side walls of the adsorption cavity, and a space for the insertion of the porous fixing plate is formed between adjacent abutting plates.

Through adopting above-mentioned technical scheme, through butt joint board with porous fixed plate centre gripping in adsorbing the intracavity, need not extra fixed mode, the workman's operation of being convenient for when reducing the equipment.

Optionally, the adsorption box is provided with a replacement hole on a side wall of the position of the adsorption cavity, the replacement hole is arranged between the two abutting plates on the same side, and the adsorption box is hinged with a sealing door at the replacement hole.

Through adopting above-mentioned technical scheme, after using a period, adsorb too much impurity and harmful substance on porous fixed plate or the filter core, artifical upset sealing door takes porous fixed plate or filter core out from replacing the hole, washs or more porous fixed plate or filter core of renewal, makes the adsorption element can use and keep the result of use for a long time.

Optionally, purify the piece including adsorbing piece, atomizer, the purification intracavity is arranged in to the adsorption piece, atomizer fixed connection is on purifying a lateral wall in chamber, just the control panel of atomizer extends to outside the adsorption tank, the atomizer is equipped with the pitch smell removing agent in.

Through adopting above-mentioned technical scheme, behind the absorption chamber, most harmful substance in the fog is adsorbed by the adsorption element and is filtered, and the fog after being filtered is in purifying the intracavity, and the atomizer is opened to the start control board, sprays the pitch smell removing agent to purifying the intracavity, absorbs the peculiar smell through adsorbing the piece, and in the air was discharged to the final opening part from purifying the chamber wall, made the combustion gas free from extraneous odour.

Optionally, a liquid feeding pipe is fixedly connected in the liquid storage box of the sprayer, the liquid feeding pipe is communicated with the liquid storage box and penetrates through the adsorption box, and the penetrating end cover of the liquid feeding pipe is provided with a pipe cover.

Through adopting above-mentioned technical scheme, when the pitch deodorant content in the atomizer was crossed lowly, opened the tube cap, from the mouth of pipe of liquid feeding pipe to the intraductal pitch deodorant that adds of liquid feeding pipe, the pitch deodorant flows into the atomizer from the heating pipe in, makes the atomizer can realize reinforced at any time, guarantees to spray efficiency.

Optionally, the rotation piece includes dwang, gag lever post, the body is worn out to the one end of fixed axle, dwang fixed connection is served in wearing out of fixed axle, the fixed orifices has been seted up on the dwang, a plurality of spacing holes have been seted up along the fixed axle circumference to the car body side wall, and the dwang rotates the in-process, and the fixed orifices communicates with spacing hole in proper order, the gag lever post wears to establish in proper order the fixed orifices with spacing hole.

Through adopting above-mentioned technical scheme, rotate the dwang and drive the fixed axle and rotate, make the chamber of breathing in of adsorption box facing to the flue gas position according to the rising direction of flue gas, adjust the dwang slightly, make the fixed orifices correspond with one of them spacing hole, insert fixed orifices and spacing downthehole with the gag lever post in proper order, make dwang and fixed axle relatively fixed, make and carrying out follow-up flue gas absorptive in-process, the fixed axle can not rock at will, influence the adsorption effect of adsorption box, make the flue gas adsorb and can go on smoothly.

In a second aspect, the construction method of the asphalt concrete road unmanned paver provided by the application adopts the following technical scheme:

a construction method of an unmanned paver for an asphalt concrete road comprises the following steps: (1) before the road is paved, the rotating rod (311) is rotated to adjust the position of the adsorption box (4), so that the air suction cavity of the adsorption box (4) is opposite to the smoke direction, and a blower and a sprayer (422) are started; (2) during paving, asphalt is paved on the ground by driving the paver with a worker, enters from a feed inlet of the paver, flows out of the paver from a discharge outlet of the paver, and is added by opening a pipe cover according to the use condition in the paving process; (3) after paving, after waiting for the vehicle body to stop operating within half an hour, the smoke concentration is reduced to be inconspicuous, and the blower and the sprayer are turned off (422).

Through adopting above-mentioned technical scheme, start hair-dryer and atomizer earlier, restart the automobile body, the adsorption tank begins the flue gas absorption before the flue gas adsorbs promptly, avoids omitting some flue gases, when waiting for the automobile body to stop, and pipe wall hair-dryer and atomizer again purify the last flue gas of automobile body and finish, and whole process reduces the outflow of unpurified flue gas.

In summary, the present application includes at least one of the following beneficial technical effects:

1. starting a suction fan, wherein the air flow rate in the air suction cavity is greater than that outside the adsorption box, negative pressure is generated in the air suction cavity to suck asphalt volatile matters outside the adsorption box into the air suction cavity, the mist sucked into the air suction cavity enters the adsorption cavity, the adsorption cavity is filtered and adsorbed by the adsorption piece, toxic substances in the mist are filtered, the filtered mist enters the purification cavity, the purified mist is purified and adsorbed again by the purification piece, and finally the air is discharged from one side of the purification cavity;

2. the adsorption box is characterized in that a sealing door capable of being opened is arranged on one side of the adsorption box, excessive impurities and harmful substances are adsorbed on the porous fixing plate or the filter element, the sealing door is manually turned, the porous fixing plate or the filter element is pulled out from the replacement hole, and the porous fixing plate or the filter element is cleaned or replaced with a new porous fixing plate or filter element, so that the adsorption piece can be used for a long time and the using effect is kept;

3. when the content of the asphalt deodorant in the sprayer is too low, the pipe cover is opened, the asphalt deodorant is added into the liquid feeding pipe from the pipe opening of the liquid feeding pipe, and the asphalt deodorant flows into the sprayer from the heating pipe, so that the sprayer can feed materials at any time, and the spraying efficiency is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a partial transverse sectional view at the suction box in fig. 1.

Fig. 3 is a partial structural view at a in fig. 2.

Fig. 4 is a partial longitudinal sectional view of the suction box of fig. 1.

Fig. 5 is a partial structural view at B in fig. 2.

Description of reference numerals: 1. a vehicle body; 2. a discharge port; 3. a fixed shaft; 31. a rotating member; 311. rotating the rod; 312. a limiting rod; 313. a fixing hole; 314. a limiting hole; 4. an adsorption tank; 41. an adsorbing member; 411. a porous fixing plate; 412. a filter element; 42. a purifying member; 421. an adsorption block; 422. a sprayer; 423. a liquid feeding pipe; 43. a suction fan; 44. an air suction pipe; 441. filtering the plate; 442. filtering cloth; 45. a partition plate; 46. a limiting member; 461. a butt joint plate; 47. a sealing door; 5. an air suction cavity; 51. a dust suction port; 6. an adsorption chamber; 7. a purification chamber; 71. and an air outlet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an asphalt concrete road unmanned spreading machine, and referring to fig. 1 and 2, the asphalt concrete road unmanned spreading machine comprises a vehicle body 1, wherein a feed inlet is formed in one side of the vehicle body 1, a discharge outlet 2 is formed in one side of the vehicle body 1, which is far away from the feed inlet, a fixed shaft 3 which is parallel to the width direction of the vehicle body 1 is arranged at the upper end of the discharge outlet 2 of the vehicle body 1, two ends of the fixed shaft 3 are rotatably connected to the vehicle body 1 through bearings, a rotating part 31 is arranged on one side of the fixed shaft 3; the inner space of the adsorption box 4 is set to be the air suction cavity 5 arranged in sequence, the adsorption cavity 6 and the purification cavity 7, the air suction cavity 5 is far away from one side wall of the adsorption cavity 6 and is provided with the dust suction port 51, the purification cavity 7 is far away from one side wall of the adsorption cavity 6 and is provided with the air outlet 71, the adsorption cavity 6 is internally provided with the adsorption piece 41, the purification cavity 7 is internally provided with the purification piece 42, asphalt is discharged through the discharge port 2 to be spread, the diffused gas of the asphalt enters the dust suction port 51, and is discharged after being purified through the adsorption piece 41 and the purification piece 42 in sequence.

Referring to fig. 3, a partition plate 45 is arranged in the suction cavity 5, a side wall of the partition plate 45 is welded on a side wall of the adsorption box 4, a suction fan 43 is connected between the partition plate 45 and the side wall of the adsorption box 4, a base of the suction fan 43 is fixed on the side wall of the adsorption box 4 through a bolt, a suction pipe 44 is integrally arranged on the suction fan 43, a suction opening consistent with the pipe diameter of the suction pipe 44 is formed in the partition plate 45, the suction pipe 44 is bonded at the suction opening on the partition plate 45, an opening of the suction pipe 44 is communicated with a cavity formed on one side, far away from the suction fan 43, of the partition plate 45, airflow is sucked by the suction fan 43 and then discharged into the suction cavity 5, and the gas finally flows out of the adsorption box 4 from the gas outlet 71.

Referring to fig. 2 and 4, a filter plate 441 is bonded to a pipe opening of the air suction pipe 44, a fastening tape is bonded to the periphery of the filter plate 441, a filter cloth 442 is bonded by the fastening tape, the aperture of the filter plate 441 is larger than that of the filter cloth 442, and the filter cloth 442 blocks solid particles in the flue gas. The rotating part 31 comprises a rotating rod 311 and a limiting rod 312, one side of the fixed shaft 3 penetrates through the vehicle body 1, the rotating rod 311 is welded at the penetrating end of the fixed shaft 3, and the rotating rod 311 is formed by welding two straight rods which are perpendicular to each other;

referring to fig. 1 and 2, a fixing hole 313 is formed in one side of the rotating rod 311 parallel to the end face of the circular shaft, a plurality of limiting holes 314 corresponding to the fixing hole 313 are formed in the vehicle body 1 along the rotating track of the fixing hole 313, and when the fixing hole 313 moves to correspond to one of the limiting holes 314, the limiting rod 312 is sequentially inserted into the fixing hole 313 and the limiting hole 314, so that the vehicle body 1 and the rotating rod 311 are relatively fixed.

Referring to fig. 2 and 3, the adsorption member 41 includes two porous solid plates 411, the porous solid plates 411 are plates made of adsorption filter materials, the width of the porous solid plates 411 is the same as the width of the inner cavity of the adsorption cavity 6, a limiting member 46 is disposed on the side wall of the adsorption cavity 6 for positioning the porous solid plates 411, the two porous solid plates 411 are horizontally fixed in the adsorption cavity 6, a filter element 412 is filled between the two porous solid plates 411, and the filter element 412 is a fmeis dust removal filter bag; the position limiting member 46 includes an abutting plate 461, the abutting plate 461 is correspondingly welded on two side walls of the length direction of the adsorption cavity 5, the distance between the two abutting plates 461 on the same side is equal to the thickness of one porous fixing plate 411, and the two abutting plates 461 clamp the porous fixing plate 411.

Referring to fig. 3, the adsorption tank 4 is provided with a replacement hole on one side of the adsorption cavity 6, and the porous solid plate 411 can pass through the replacement hole for assembly and disassembly; the side wall of the absorption cavity 6 is hinged with a sealing door 47, the periphery of the sealing door 47 is adhered with a sealing ring, and the replacement hole is sealed and blocked by turning over the sealing door 47.

Referring to fig. 3 and 5, the purifying member 42 includes a plurality of adsorbing blocks 421 and a sprayer 422, the adsorbing blocks 421 are made of activated carbon, the adsorbing blocks 421 are adhered in the purifying chamber 7, a base of the sprayer 422 is connected to an inner wall of one side of the purifying chamber 7 in the length direction through bolts, an opening is formed in the side wall of the purifying chamber 7 on the side of the control panel of the sprayer 422, and the control panel is exposed out of the adsorbing box 4 for being operated by a worker; the liquid storage box of the sprayer 422 is filled with an asphalt deodorant, and the spraying direction of the sprayer 422 points far away from the purification cavity 7; the intercommunication is fixed with liquid feeding pipe 423 on atomizer 422's the stock solution box, and the lateral wall and the external world intercommunication of adsorption tank 4 are worn to establish by the other end of liquid feeding pipe 423, and one side that liquid feeding pipe 423 kept away from the stock solution box is provided with the tube cap, and the tube cap is the rubber material.

The implementation principle of the unmanned paver for the asphalt concrete road in the embodiment of the application is as follows: automobile body 1 carries out road paving, the pitch that the heating finishes is poured to subaerial the paving from discharge gate 2, the workman rotates dwang 311, with adsorption tank 4 alignment flue gas position, insert gag lever post 312 in proper order in fixed orifices 313 and spacing hole 314, the position of location fixed axle 3, start atomizer 422 and suction fan 43, the atmospheric pressure in the chamber 5 of breathing in is less than external atmospheric pressure, inhale gas in adsorption tank 4, gas gets into in the absorption chamber 6 through the chamber 5 of breathing in, the tiny particle harmful substance in the gas is adsorbed on porous fixed plate 411, its internal a large amount of impurity is filtered by filter core 412, gas after the filtration gets into purification chamber 7 through porous fixed plate 411 once more, atomizer 422 sprays the pitch odor removing agent, get rid of the peculiar smell and some harmful substance of gas at last, the gas that is purified passes through gas outlet 71 discharge adsorption tank 4.

The application also discloses a construction method of the asphalt concrete road unmanned paver, which comprises the following steps: (1) before paving a road, the rotating rod 311 is rotated to adjust the position of the adsorption box 4, so that the air suction cavity of the adsorption box 4 is opposite to the smoke direction, and the blower and the sprayer 422 are started; (2) during paving, asphalt is paved on the ground by driving the paver with a worker, enters from a feed inlet of the paver, flows out of a discharge outlet of the paver and is paved on the ground, a pipe cover is opened in the paving process, and liquid is added according to the using condition; (3) after paving, after waiting for the vehicle body to no longer operate for half an hour, the smoke concentration is reduced to be inconspicuous, and the blower and sprayer 422 are turned off.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an unmanned paver of asphalt concrete road, includes automobile body (1), and one side of automobile body (1) sets up to discharge gate (2), its characterized in that: the car body (1) is rotatably connected with a fixed shaft (3) at the discharge port (2), the fixed shaft (3) is arranged in parallel along the width direction of the car body (1), a rotating part (31) is arranged on one side of the fixed shaft (3), an adsorption box (4) is fixedly connected onto the fixed shaft (3), a dust suction port (51) is formed in one side, away from the fixed shaft (3), of the adsorption box (4), and the space in the adsorption box (4) is sequentially arranged into a gas suction cavity (5), an adsorption cavity (6) and a purification cavity (7) along the dust suction port (51); an adsorption part (41) is arranged in the adsorption cavity (6), a purification part (42) is arranged in the purification cavity (7), and an air outlet (71) is formed in one side of the purification cavity (7) far away from the adsorption cavity (6).

2. The unmanned paving machine for asphalt concrete road as claimed in claim 1, wherein: suction chamber (5) length direction one end is connected with suction fan (43) on the lateral wall, one side that suction chamber (5) lateral wall was kept away from in suction fan (43) is provided with baffle (45), baffle (45) fixed connection be in adsorption tank (4) inner wall, suction fan (43) are connected with aspiration channel (44), the inlet scoop has been seted up on baffle (45), aspiration channel (44) one end and inlet scoop intercommunication.

3. The unmanned paver of claim 2, characterized in that: the pipe orifice of the air suction pipe (44) is fixedly connected with a filter plate (441), and the filter cloth (442) is detachably connected to the filter plate (441).

4. The unmanned paving machine for asphalt concrete road as claimed in claim 3, wherein: the adsorption part (41) comprises a plurality of porous solid plates (411), the side wall of the adsorption box (4) is provided with a limiting part (46) for limiting the porous fixed plate (411), the side wall of the porous fixed plate (411) is abutted to the side wall of the adsorption box (4), and a filter element (412) is arranged between the adjacent porous fixed plates (411).

5. The unmanned paving machine for asphalt concrete road as claimed in claim 4, wherein: the limiting piece (46) comprises a plurality of abutting plates (461) which are symmetrically arranged on two side walls of the adsorption cavity (6), and a space for the insertion of the porous fixing plate (411) is formed between every two adjacent abutting plates (461).

6. The unmanned paving machine for asphalt concrete road as claimed in claim 5, wherein: the adsorption box (4) is provided with a replacement hole on one side wall of the position of the adsorption cavity (6), the replacement hole is arranged between two abutting plates (461) on the same side, and the adsorption box (4) is hinged with a sealing door (47) at the replacement hole.

7. The unmanned paving machine for asphalt concrete road as claimed in claim 6, wherein: purify piece (42) including adsorbing piece (421), atomizer (422), adsorb piece (421) and arrange in purifying chamber (7), atomizer (422) fixed connection is on purifying chamber's (7) a lateral wall, just the control panel of atomizer (422) extends to outside adsorbing case (4), the pitch smell removing agent is equipped with in atomizer (422).

8. The unmanned paving machine for asphalt concrete road as claimed in claim 7, wherein: fixedly connected with liquid feeding pipe (423) in the stock solution box of atomizer (422), liquid feeding pipe (423) and stock solution box intercommunication just wear to establish adsorption tank (4), the end cover of wearing out of liquid feeding pipe (423) is equipped with the tube cap.

9. The unmanned paving machine for asphalt concrete road as claimed in claim 7, wherein: rotate piece (31) including dwang (311), gag lever post (312), the body is worn out to the one end of fixed axle (3), dwang (311) fixed connection is served in wearing out of fixed axle (3), fixed orifices (313) have been seted up on dwang (311), a plurality of spacing holes (314) have been seted up along fixed axle (3) circumference to automobile body (1) lateral wall, and dwang (311) rotate the in-process, and fixed orifices (313) communicate with spacing hole (314) in proper order, gag lever post (312) are worn to establish in proper order fixed orifices (313) with spacing hole (314).

10. A construction method using the unmanned spreading machine of any one of claims 1 to 9, characterized in that: the method comprises the following steps: (1) before the road is paved, the rotating rod (311) is rotated to adjust the position of the adsorption box (4), so that the air suction cavity of the adsorption box (4) is opposite to the smoke direction, and a blower and a sprayer (422) are started; (2) during paving, asphalt is paved on the ground by driving the paver with a worker, enters from a feed inlet of the paver, flows out of the paver from a discharge outlet of the paver, and is added by opening a pipe cover according to the use condition in the paving process; (3) after paving, after waiting for the vehicle body to stop operating within half an hour, the smoke concentration is reduced to be inconspicuous, and the blower and the sprayer are turned off (422).