阅读说明：本技术 一种沥青混凝土填料的制备方法 (Preparation method of asphalt concrete filler ) 是由 王克瑶 李新军 于 2021-01-14 设计创作，主要内容包括：本发明涉及填料制备技术领域,具体的说是一种沥青混凝土填料的制备方法,包括将潮湿的沥青混凝土填料放入沥青混凝土制备设备中的进料漏斗内,开启阀门,通过喷料器工作,使得进料漏斗内潮湿的沥青混凝土填料通过导料管喷出；导料管喷出的潮湿的沥青混凝土填料喷洒到网状传送带上,通过网状传送带的传动,使得潮湿的沥青混凝土填料平铺在网状传送带上,避免得潮湿的沥青混凝土填料堆积；通过轴流风机工作使得位于过滤网下方的初步烘干后的沥青混凝土填料进入到连接管内,再通过回流管回流到烘干筒内,从而可以对沥青混凝土填料进行循环烘干；本发明提供的沥青混凝土填料制备装置具有烘干效率高,烘干效果好的优点。(The invention relates to the technical field of filler preparation, in particular to a preparation method of an asphalt concrete filler, which comprises the steps of putting a wet asphalt concrete filler into a feeding hopper in asphalt concrete preparation equipment, opening a valve, and spraying the wet asphalt concrete filler in the feeding hopper through a material guide pipe by the operation of a sprayer; the wet asphalt concrete filler sprayed out of the material guide pipe is sprayed on the mesh-shaped conveyor belt, and the wet asphalt concrete filler is flatly paved on the mesh-shaped conveyor belt through the transmission of the mesh-shaped conveyor belt, so that the accumulation of the wet asphalt concrete filler is avoided; the preliminarily dried asphalt concrete filler positioned below the filter screen enters the connecting pipe through the work of the axial flow fan and then flows back into the drying cylinder through the return pipe, so that the asphalt concrete filler can be circularly dried; the asphalt concrete filler preparation device provided by the invention has the advantages of high drying efficiency and good drying effect.)

1. The preparation method of the asphalt concrete filler is characterized by comprising the following steps:

s1: putting the wet asphalt concrete filler into a feeding hopper in the asphalt concrete preparation equipment, opening a valve, and spraying the wet asphalt concrete filler in the feeding hopper through a material guide pipe by the operation of a material sprayer;

s2: the wet asphalt concrete filler sprayed out of the material guide pipe is sprayed on the mesh-shaped conveyor belt, and the wet asphalt concrete filler is flatly paved on the mesh-shaped conveyor belt through the transmission of the mesh-shaped conveyor belt, so that the accumulation of the wet asphalt concrete filler is avoided;

s3: the preliminarily dried asphalt concrete filler positioned below the filter screen enters the connecting pipe through the work of the axial flow fan and then flows back into the drying cylinder through the return pipe, so that the asphalt concrete filler can be circularly dried;

s4: the bottom plate is rotated through the work of the driving motor, the supporting plate and the upright post are rotated under the action of the telescopic rod, so that the crushing roller is driven to rotate, the crushing roller can rotate on the surface of the filter screen, and the asphalt concrete filler on the surface of the filter screen can be rolled through the crushing roller, so that the quality of the asphalt concrete filler is improved;

the asphalt concrete preparation equipment in S1 comprises a drying cylinder (2), wherein the inner wall of the drying cylinder (2) is fixedly connected with an electric heating ring (7), and a filter screen (6) is fixedly connected in the drying cylinder (2);

the material spraying mechanism (1), the material spraying mechanism (1) is connected with the drying cylinder (2);

the dehumidifying mechanism (3), the dehumidifying mechanism (3) is connected with the drying drum (2);

the circulating mechanism (4), the said circulating mechanism (4) is connected with drying cylinder (2);

the mesh conveyor belt mechanism (8), the mesh conveyor belt mechanism (8) is connected with the drying drum (2);

and the crushing mechanism (5), wherein the crushing mechanism (5) is connected with the drying cylinder (2).

2. A method for preparing an asphalt concrete filler according to claim 1, wherein: mesh conveyor belt mechanism (8) include action wheel (81), pivot (82), mesh conveyor belt (83), strip silica gel is protruding (84), follow driving wheel (85) and motor (86), drying cylinder (2) internal rotation is connected with action wheel (81) and follows driving wheel (85), action wheel (81) and follow driving wheel (85) are connected through mesh conveyor belt (83) transmission, the outer fixed surface of mesh conveyor belt (83) is connected with a plurality of evenly distributed's strip silica gel is protruding (84), and the one end of one side center of rotation fixed connection pivot (82) of action wheel (81), the other end of pivot (82) runs through drying cylinder (2) and is connected with the output of motor (86) through the shaft coupling.

3. A method for preparing an asphalt concrete filler according to claim 2, characterized in that: the mesh conveyor belt (83) is obliquely arranged.

4. A method for preparing an asphalt concrete filler according to claim 1, wherein: spout material mechanism (1) including feed hopper (11), spout glassware (12), passage (13) and valve (14), the external fixed surface of a stoving section of thick bamboo (2) is received to have passage (13) rather than inside mutual intercommunication, and the discharge gate of passage (13) sets up towards netted conveyer belt (83), and one end that a stoving section of thick bamboo (2) was kept away from in passage (13) is connected with the discharge gate of spouting glassware (12), and the feed inlet of spouting glassware (12) is connected with upper end open-ended feed hopper (11), and installs valve (14) on passage (13).

5. A method for preparing an asphalt concrete filler according to claim 1, wherein: the circulating mechanism (4) comprises a return pipe (41), a connecting pipe (42), an axial flow fan (43), a discharge pipe (44), a switch valve (45) and a control valve (46), the outer surface of the bottom of the drying cylinder (2) is fixedly connected with the connecting pipe (42) which is communicated with the inside of the drying cylinder, the joint of the connecting pipe (42) and the drying cylinder (2) is positioned below the filter screen (6), one end, far away from the drying cylinder (2), of the connecting pipe (42) is connected with an air suction port of the axial flow fan (43), an air outlet of the axial flow fan (43) is connected with the discharge pipe (44), the switch valve (45) is installed on the discharge pipe (44), the discharge pipe (44) is fixedly connected with the return pipe (41) which is communicated with the inside of the discharge pipe, the control valve (46) is installed on the return pipe (41), and the return pipe (41, and one end of the return pipe (41) far away from the discharge pipe (44) is arranged through the drying drum (2), and the outlet of the return pipe (41) is arranged towards the reticular conveyor belt (83).

6. A method for preparing an asphalt concrete filler according to claim 1, wherein: dehumidifying mechanism (3) includes exhaust tube (31), blast pipe (32) and vacuum pump (33), the last fixed surface of stoving section of thick bamboo (2) is connected with vacuum pump (33), and the air inlet of vacuum pump (33) passes through exhaust tube (31) and stoving section of thick bamboo (2) intercommunication each other, and the junction fixedly connected with filter plate of exhaust tube (31) and stoving section of thick bamboo (2), and the gas outlet of vacuum pump (33) is connected with blast pipe (32).

7. A method for preparing an asphalt concrete filler according to claim 1, wherein: the grinding mechanism (5) comprises a grinding roller (51), a spring (52), an arc-shaped protrusion (53), a sliding block (54), a pressure spring (55), a bottom plate (56), a driving motor (57), a stand column (58), a supporting plate (59) and telescopic rods (59a), a transmission shaft is rotatably connected to the drying cylinder (2), the lower end of the transmission shaft extends to the lower part of the drying cylinder (2) and is connected with the output end of the driving motor (57) through a coupler, the upper end of the transmission shaft is fixedly connected with the bottom plate (56), the supporting plate (59) is arranged above the bottom plate (56), the supporting plate (59) is connected with the bottom plate (56) through the two symmetrically-arranged telescopic rods (59a), the lower surface of the supporting plate (59) is connected with one end of the pressure spring (55), and the other end of the pressure spring (55) is connected; the upper surface of the supporting plate (59) is fixedly connected with one end of an upright post (58), the other end of the upright post (58) penetrates through a through hole formed in the filter screen (6), and the outer surface of the upright post (58) is fixedly connected with an elastic shielding cover used for shielding the through hole formed in the filter screen (6); one section that stand (58) are located filter screen (6) top is connected with slider (54), and slider (54) rotate and are connected with crushing roller (51), and crushing roller (51) are connected with the upper surface contact of filter screen (6).

8. The method of claim 7, wherein the asphalt concrete filler is prepared by: the grinding mechanism (5) further comprises a spring (52) and an arc-shaped protrusion (53), the upper end of the upright post (58) is fixedly connected with the arc-shaped protrusion (53), the upper surface of the arc-shaped protrusion (53) is in contact connection with the mesh conveyor belt (83), the lower surface of the arc-shaped protrusion (53) is connected with one end of the spring (52), the other end of the spring (52) is connected with the sliding block (54), and the sliding block (54) is in sliding connection with the upright post (58).

9. The method of claim 4, wherein the asphalt concrete filler is prepared by: the outer surface of the drying cylinder (2) is wrapped with a heat insulation layer, and the lower surface of the drying cylinder (2) is fixedly connected with supporting bottom feet.

Technical Field

The invention relates to the technical field of filler preparation, in particular to a preparation method of an asphalt concrete filler.

Background

Filler refers to the portion of material in the asphalt mixture that fills the tiny voids, commonly referred to as material below 0.0775mm, commonly referred to as mineral fines. The filler (mineral powder) has two purposes in the asphalt mixture, one is to fill the gap to prevent the gap of the mixture from being too large, and the other is to form mucilage together with the asphalt to improve the strength and stability of the mixture.

Asphalt concrete filler need be dried to the powdered ore when preparing, and current asphalt concrete filler preparation facilities is when using, and asphalt concrete filler can not circulate and dry to influence the drying efficiency and the effect of drying of asphalt concrete filler.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a preparation method of an asphalt concrete filler.

The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of an asphalt concrete filler comprises the following steps:

s1: putting the wet asphalt concrete filler into a feeding hopper in the asphalt concrete preparation equipment, opening a valve, and spraying the wet asphalt concrete filler in the feeding hopper through a material guide pipe by the operation of a material sprayer;

s2: the wet asphalt concrete filler sprayed out of the material guide pipe is sprayed on the mesh-shaped conveyor belt, and the wet asphalt concrete filler is flatly paved on the mesh-shaped conveyor belt through the transmission of the mesh-shaped conveyor belt, so that the accumulation of the wet asphalt concrete filler is avoided;

s3: the preliminarily dried asphalt concrete filler positioned below the filter screen enters the connecting pipe through the work of the axial flow fan and then flows back into the drying cylinder through the return pipe, so that the asphalt concrete filler can be circularly dried;

s4: the bottom plate is rotated through the work of the driving motor, the supporting plate and the upright post are rotated under the action of the telescopic rod, so that the crushing roller is driven to rotate, the crushing roller can rotate on the surface of the filter screen, and the asphalt concrete filler on the surface of the filter screen can be rolled through the crushing roller, so that the quality of the asphalt concrete filler is improved;

the asphalt concrete preparation equipment in S1 comprises a drying cylinder, wherein the inner wall of the drying cylinder is fixedly connected with an electric heating ring, and a filter screen is fixedly connected in the drying cylinder; the material spraying mechanism is connected with the drying cylinder; the dehumidifying mechanism is connected with the drying cylinder; the circulating mechanism is connected with the drying cylinder; the mesh conveyor belt mechanism is connected with the drying cylinder; and the crushing mechanism is connected with the drying cylinder.

Specifically, netted conveyer belt mechanism includes that action wheel, pivot, netted conveyer belt, strip silica gel are protruding, follow driving wheel and motor, the stoving bobbin internal rotation is connected with the action wheel and follows the driving wheel, and the action wheel is connected through netted conveyer belt transmission with following the driving wheel, and the outer fixed surface of netted conveyer belt is connected with a plurality of evenly distributed's strip silica gel protruding, and the one end of one side rotation center fixed connection pivot of action wheel, the other end of pivot run through the stoving bobbin and be connected with the output of motor through the shaft coupling.

Specifically, the mesh conveyor belt is obliquely arranged.

It is specific, spout the material mechanism and include feed hopper, spout glassware, passage and valve, the external fixed surface of a stoving section of thick bamboo is met and is had the passage rather than inside mutual intercommunication, and the discharge gate of passage sets up towards netted conveyer belt, and the one end that a stoving section of thick bamboo was kept away from to the passage is connected with the discharge gate of spouting the glassware, and the feed inlet of spouting the glassware is connected with upper end open-ended feed hopper, and installs the valve on the passage.

Specifically, circulation mechanism includes back flow, connecting pipe, axial fan, discharging pipe, ooff valve and control valve, the bottom surface fixed connection of stoving section of thick bamboo has rather than the inside connecting pipe that communicates each other, the junction of connecting pipe and stoving section of thick bamboo is located the below of filter screen, and the connecting pipe is kept away from the one end of stoving section of thick bamboo and is connected axial fan's inlet scoop, axial fan's air outlet is connected with the discharging pipe, install the ooff valve on the discharging pipe, and discharging pipe fixed connection has rather than the inside back flow that communicates each other, install the control valve on the back flow, and the back flow is located the ooff valve and axial fan directness, and the back flow is kept away from the one end of discharging pipe and is run.

Specifically, dehumidifying mechanism includes exhaust tube, blast pipe and vacuum pump, the last fixed surface of a stoving section of thick bamboo is connected with the vacuum pump, and the air inlet of vacuum pump passes through the exhaust tube and communicates each other with a stoving section of thick bamboo, and the filter plate is crossed to the fixedly connected with in the junction of exhaust tube and a stoving section of thick bamboo, and the gas outlet of vacuum pump is connected with the blast pipe.

The crushing mechanism comprises a crushing roller, a spring, an arc-shaped bulge, a sliding block, a pressure spring, a bottom plate, a driving motor, a stand column, a supporting plate and telescopic rods, wherein a transmission shaft is connected in the drying cylinder in a rotating mode, the lower end of the transmission shaft extends to the lower side of the drying cylinder and is connected with the output end of the driving motor through a coupler, the upper end of the transmission shaft is fixedly connected with the bottom plate, the supporting plate is arranged above the bottom plate and is connected with the bottom plate through the two symmetrically-arranged telescopic rods, the lower surface of the supporting plate is connected with one end of the pressure spring, and the other end of the; the upper surface of the supporting plate is fixedly connected with one end of an upright post, the other end of the upright post penetrates through a through hole formed in the filter screen, and the outer surface of the upright post is fixedly connected with an elastic shielding cover used for shielding the through hole formed in the filter screen; one section that the stand is located the filter screen top is connected with the slider, and the slider rotates and is connected with the roller of smashing, smashes the roller and is connected with the upper surface contact of filter screen.

Specifically, it is protruding that grinding mechanism still includes spring and arc, the upper end fixedly connected with arc of stand is protruding, and the bellied upper surface of arc is connected with netted conveyer belt contact, and the bellied lower surface of arc connects the one end of spring, and the other end and the slider of spring are connected, and slider and stand sliding connection.

Specifically, the outer surface of the drying cylinder is wrapped with a heat insulation layer, and the lower surface of the drying cylinder is fixedly connected with supporting feet.

The invention has the beneficial effects that:

1. when the wet asphalt concrete filler drying device is used, the wet asphalt concrete filler sprayed out of the material guide pipes can be sprayed onto the mesh conveyor belt, and the wet asphalt concrete filler is flatly paved on the mesh conveyor belt through the transmission of the mesh conveyor belt, so that the accumulation of the wet asphalt concrete filler is avoided, and the drying of the wet asphalt concrete filler is facilitated;

2. according to the invention, the preliminarily dried asphalt concrete filler positioned below the filter screen enters the connecting pipe through the work of the axial flow fan and then flows back into the drying cylinder through the return pipe, so that the asphalt concrete filler can be circularly dried, and the drying quality and the drying efficiency of the asphalt concrete filler of the device are improved;

3. when the asphalt concrete filler flows back into the drying cylinder through the return pipe, the asphalt concrete filler is sprayed out, so that the drying of the asphalt concrete filler is facilitated, and meanwhile, the axial flow fan works to generate flowing hot air flow in the drying cylinder, so that the temperature in the drying cylinder is more uniform, and the asphalt concrete filler is in contact with the asphalt concrete filler, so that the drying of the asphalt concrete filler is further facilitated;

4. according to the invention, the bottom plate rotates through the work of the driving motor, the supporting plate and the upright post rotate under the action of the telescopic rod, so that the crushing roller is driven to rotate, the crushing roller can rotate on the surface of the filter screen, and the asphalt concrete filler on the surface of the filter screen can be rolled through the crushing roller, so that the asphalt concrete filler can be further crushed, and the quality of the asphalt concrete filler is improved; the asphalt concrete filler on the surface of the filter screen can be rolled through the crushing roller, so that the probability of adhering the asphalt concrete filler on the surface of the filter screen can be reduced, the residue of the asphalt concrete filler is reduced, and the waste is reduced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view showing the construction of an apparatus for producing asphalt concrete according to the present invention;

FIG. 2 is a schematic structural diagram of the material spraying mechanism shown in FIG. 1;

FIG. 3 is a schematic sectional view showing the construction of the asphalt concrete filler preparing apparatus shown in FIG. 1;

FIG. 4 is a schematic structural view of the grinding mechanism shown in FIG. 3;

fig. 5 is a schematic structural view of the mesh conveyor belt mechanism shown in fig. 3.

Reference numbers in the figures: 1. a material spraying mechanism; 11. a feed hopper; 12. a material sprayer; 13. a material guide pipe; 14. a valve; 2. a drying drum; 3. a dehumidifying mechanism; 31. an air exhaust pipe; 32. an exhaust pipe; 33. a vacuum pump; 4. a circulating mechanism; 41. a return pipe; 42. a connecting pipe; 43. an axial flow fan; 44. a discharge pipe; 45. an on-off valve; 46. a control valve; 5. a grinding mechanism; 51. a crushing roller; 52. a spring; 53. an arc-shaped bulge; 54. a slider; 55. a pressure spring; 56. a base plate; 57. a drive motor; 58. a column; 59. a support plate; 59a, a telescopic rod; 6. a filter screen; 7. an electric heating ring; 8. a mesh conveyor belt mechanism; 81. a driving wheel; 82. a rotating shaft; 83. a mesh conveyor belt; 84. the strip-shaped silica gel bulges; 85. a driven wheel; 86. an electric motor.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the method for preparing the asphalt concrete filler of the present invention comprises the following steps:

s1: putting the wet asphalt concrete filler into a feeding hopper in the asphalt concrete preparation equipment, opening a valve, and spraying the wet asphalt concrete filler in the feeding hopper through a material guide pipe by the operation of a material sprayer;

s2: the wet asphalt concrete filler sprayed out of the material guide pipe is sprayed on the mesh-shaped conveyor belt, and the wet asphalt concrete filler is flatly paved on the mesh-shaped conveyor belt through the transmission of the mesh-shaped conveyor belt, so that the accumulation of the wet asphalt concrete filler is avoided;

s3: the preliminarily dried asphalt concrete filler positioned below the filter screen enters the connecting pipe through the work of the axial flow fan and then flows back into the drying cylinder through the return pipe, so that the asphalt concrete filler can be circularly dried;

s4: the bottom plate is rotated through the work of the driving motor, the supporting plate and the upright post are rotated under the action of the telescopic rod, so that the crushing roller is driven to rotate, the crushing roller can rotate on the surface of the filter screen, and the asphalt concrete filler on the surface of the filter screen can be rolled through the crushing roller, so that the quality of the asphalt concrete filler is improved;

the asphalt concrete preparation equipment in S1 comprises a drying cylinder 2, wherein the inner wall of the drying cylinder 2 is fixedly connected with an electric heating ring 7, and a filter screen 6 is fixedly connected in the drying cylinder 2; the material spraying mechanism 1 is connected with the drying cylinder 2; the dehumidifying mechanism 3 is connected with the drying cylinder 2; the circulating mechanism 4 is connected with the drying cylinder 2; the mesh conveyor belt mechanism 8 is connected with the drying cylinder 2; and the crushing mechanism 5 is connected with the drying cylinder 2.

In the specific implementation process, as shown in fig. 1, fig. 3 and fig. 5, mesh conveyor belt mechanism 8 includes action wheel 81, pivot 82, mesh conveyor belt 83, strip silica gel is protruding 84, follows driving wheel 85 and motor 86, drying cylinder 2 internal rotation is connected with action wheel 81 and follows driving wheel 85, and action wheel 81 and follow driving wheel 85 pass through mesh conveyor belt 83 transmission and connect, and mesh conveyor belt 83's surface fixed connection has a plurality of evenly distributed's strip silica gel protruding 84, and one side rotation center fixed connection pivot 82's of action wheel 81 one end, and drying cylinder 2 is run through and the output of motor 86 is connected through the shaft coupling to the other end of pivot 82.

Need to explain: through the work of motor 86 for action wheel 81 rotates, under the effect of netted conveyer belt 83, makes action wheel 81 drive follow driving wheel 85 and rotates, and then makes netted conveyer belt 83 also rotate.

Referring to fig. 3, the mesh conveyor belt 83 is disposed obliquely.

Need to explain: the mesh conveyor belt 83 is obliquely arranged, so that the wet asphalt concrete filler sprayed out from the material guide pipe 13 can be better attached to the mesh conveyor belt 83, and the falling probability of the wet asphalt concrete filler is reduced.

Referring to fig. 1 and 2, the material spraying mechanism 1 includes a feeding funnel 11, a material sprayer 12, a material guiding pipe 13 and a valve 14, the material guiding pipe 13 communicated with the inside of the drying cylinder 2 is connected to the outer surface of the drying cylinder 2, the material outlet of the material guiding pipe 13 is arranged towards the mesh conveyor belt 83, one end of the material guiding pipe 13 far away from the drying cylinder 2 is connected with the material outlet of the material sprayer 12, the material inlet of the material sprayer 12 is connected with the feeding funnel 11 with an upper end open, and the valve 14 is installed on the material guiding pipe 13.

Need to explain: the wet asphalt concrete filler is placed in the feeding hopper 11, the valve 14 is opened, the material sprayer 12 works to spray the wet asphalt concrete filler in the feeding hopper 11 through the material guide pipe 13, and the invention 14 is closed after the feeding is finished; the wet asphalt concrete filler is dried by the operation of the electric heating ring 7; the wet asphalt concrete filler sprayed out of the material guide pipe 13 can be sprayed on the mesh conveyor belt 83, and the wet asphalt concrete filler is flatly paved on the mesh conveyor belt 83 through the transmission of the mesh conveyor belt 83, so that the accumulation of the wet asphalt concrete filler is avoided, and the drying of the wet asphalt concrete filler is facilitated; and with the transmission of the mesh conveyor belt 83, the dried asphalt concrete filler falls off from the mesh conveyor belt 83, finally passes through the filter screen 6 and enters the bottom of the drying cylinder 2.

Referring to fig. 1, the circulation mechanism 4 includes a return pipe 41, a connection pipe 42, an axial flow fan 43, a discharge pipe 44, a switching valve 45 and a control valve 46, the outer surface of the bottom of the drying cylinder 2 is fixedly connected with a connecting pipe 42 which is mutually communicated with the inside of the drying cylinder, the connecting part of the connecting pipe 42 and the drying cylinder 2 is positioned below the filter screen 6, and one end of the connecting pipe 42 far away from the drying cylinder 2 is connected with an air suction opening of the axial flow fan 43, an air outlet of the axial flow fan 43 is connected with a discharge pipe 44, a switch valve 45 is arranged on the discharge pipe 44, and the discharge pipe 44 is fixedly connected with a return pipe 41 communicated with the interior thereof, the return pipe 41 is provided with a control valve 46, and the return pipe 41 is positioned between the switch valve 45 and the axial flow fan 43, and one end of the return pipe 41 far away from the discharge pipe 44 is arranged through the drying drum 2, while the outlet of the return pipe 41 is arranged towards the mesh conveyor belt 83.

Need to explain: the initially dried asphalt concrete filler positioned below the filter screen 6 enters the connecting pipe 42 through the work of the axial flow fan 43 and then flows back into the drying cylinder 2 through the return pipe 41, so that the asphalt concrete filler can be circularly dried, and the drying quality and the drying efficiency of the asphalt concrete filler of the device are improved;

it is also stated that: when the asphalt concrete filler flows back into the drying cylinder 2 through the return pipe 41, the asphalt concrete filler is sprayed out, which is beneficial to drying the asphalt concrete filler, and meanwhile, the axial flow fan 43 works to generate flowing hot air flow in the drying cylinder 2, so that the temperature in the drying cylinder 2 is more uniform, and the asphalt concrete filler is beneficial to contact with the asphalt concrete filler, thereby further being beneficial to drying the asphalt concrete filler;

it is also stated that: when the asphalt concrete filler is sprayed, the asphalt concrete filler collides with the mesh conveyor belt 83, and the asphalt concrete filler can be scattered by the mesh conveyor belt 83, so that the asphalt concrete filler is dried;

it is also stated that: after the asphalt concrete filler is dried, the control valve 46 is closed, the switch 45 is opened, and the axial flow fan 43 works, so that the dried asphalt concrete filler can be discharged through the discharge pipe 44, and the discharge of the asphalt concrete filler is facilitated.

Referring to fig. 1, the dehumidifying mechanism 3 includes an air exhaust pipe 31, an exhaust pipe 32 and a vacuum pump 33, the upper surface of the drying drum 2 is fixedly connected with the vacuum pump 33, an air inlet of the vacuum pump 33 is communicated with the drying drum 2 through the air exhaust pipe 31, a filter screen plate is fixedly connected to a connection part of the air exhaust pipe 31 and the drying drum 2, and an air outlet of the vacuum pump 33 is connected with the exhaust pipe 32.

Need to explain: work through vacuum pump 33, can pass through blast pipe 32 with the moisture that produces in the section of thick bamboo 2 of drying and discharge, and filter plate can the separation asphalt concrete filler in the section of thick bamboo 2 of drying, avoid asphalt concrete filler suction, improve the reliability that the device used.

Referring to fig. 3 and 4, the crushing mechanism 5 includes a crushing roller 51, a spring 52, an arc-shaped protrusion 53, a slider 54, a pressure spring 55, a bottom plate 56, a driving motor 57, a column 58, a supporting plate 59 and an expansion link 59a, the drying drum 2 is rotatably connected with a transmission shaft, the lower end of the transmission shaft extends to the lower side of the drying drum 2 and is connected with the output end of the driving motor 57 through a coupler, the upper end of the transmission shaft is fixedly connected with the bottom plate 56, the supporting plate 59 is arranged above the bottom plate 56, the supporting plate 59 is connected with the bottom plate 56 through two symmetrically arranged expansion links 59a, the lower surface of the supporting plate 59 is connected with one end of the pressure spring 55, and the other end of the pressure spring 55; the upper surface of the supporting plate 59 is fixedly connected with one end of an upright post 58, the other end of the upright post 58 penetrates through a through hole formed in the filter screen 6, and the outer surface of the upright post 58 is fixedly connected with an elastic shielding cover for shielding the through hole formed in the filter screen 6; one section of the upright post 58 positioned above the filter screen 6 is connected with a slide block 54, the slide block 54 is rotatably connected with a crushing roller 51, and the crushing roller 51 is in contact connection with the upper surface of the filter screen 6.

Need to explain: the bottom plate 56 rotates through the work of the driving motor 57, the supporting plate 59 and the upright post 58 rotate under the action of the telescopic rod 59, so that the crushing roller 51 is driven to rotate, the crushing roller 51 can rotate on the surface of the filter screen 6, and the asphalt concrete filler on the surface of the filter screen 6 can be crushed through the crushing roller 51, so that the asphalt concrete filler can be further crushed, and the quality of the asphalt concrete filler is improved;

it is also stated that: the asphalt concrete filler on the surface of the filter screen 6 can be rolled by the crushing roller 51, so that the probability of the asphalt concrete filler adhering to the surface of the filter screen 6 can be reduced, the residue of the asphalt concrete filler is reduced, and the waste is reduced;

it is also stated that: through the rotation of grinding roller 51, can spout the glassware 13 when expecting, the asphalt concrete that falls on filter screen 6 packs and promotes to surface asphalt concrete packs and piles up on filter screen 6, thereby is favorable to the stoving that asphalt concrete packed.

Referring to fig. 4, the crushing mechanism 5 further comprises a spring 52 and an arc-shaped protrusion 53, the arc-shaped protrusion 53 is fixedly connected to the upper end of the upright 58, the upper surface of the arc-shaped protrusion 53 is in contact connection with the mesh conveyor 83, the lower surface of the arc-shaped protrusion 53 is connected to one end of the spring 52, the other end of the spring 52 is connected to the sliding block 54, and the sliding block 54 is slidably connected to the upright 58.

Need to explain: when the upper surface of the arc-shaped projection 53 is in contact connection with the mesh conveyor belt 83, the spring 52 is in a compressed state, and the crushing roller 51 is in stable contact with the filter screen 6 under the action of the elastic restoring force of the spring 52, so that the asphalt concrete filler on the filter screen 6 is crushed;

it is also stated that: the upper surface of the arc-shaped bulge 53 is in contact connection with the mesh-shaped conveyor belt 83, namely, when the mesh-shaped conveyor belt 83 rotates, the arc-shaped bulge 53 can play a role in scraping the mesh-shaped conveyor belt 83, so that the residue of asphalt concrete filler on the mesh-shaped conveyor belt 83 is reduced, and the waste is reduced;

it is also stated that: due to the strip-shaped silica gel protrusions 84, the strip-shaped silica gel protrusions 84 can extrude the arc-shaped protrusions 53, so that the pressure spring 55 is compressed, and the arc-shaped protrusions 53 move downwards; at this time, the spring 52 is further compressed, so that the elastic restoring force of the spring 52 is increased, so that the acting force between the crushing roller 51 and the filtering mesh 6 is increased, thereby further facilitating the crushing of the asphalt concrete filler on the filtering mesh 6.

Referring to fig. 3, the outer surface of the drying cylinder 2 is wrapped with an insulating layer, and the lower surface of the drying cylinder 2 is fixedly connected with supporting feet.

Need to explain: the heat preservation layer 23 is a sponge heat preservation layer, and heat exchange between the inside and the outside of the drying cylinder 2 can be reduced through the heat preservation layer 23, so that heat loss in the drying cylinder 2 is reduced, and drying of asphalt concrete filler is facilitated.

The working principle of the asphalt concrete filler preparation device provided by the invention is as follows:

when the invention is used, moist asphalt concrete filler is placed in the feeding funnel 11, the valve 14 is opened, and the material sprayer 12 works to spray the moist asphalt concrete filler in the feeding funnel 11 through the material guide pipe 13, and after the feeding is finished, the invention 14 is closed; the wet asphalt concrete filler is dried by the operation of the electric heating ring 7; the wet asphalt concrete filler sprayed out of the material guide pipe 13 can be sprayed on the mesh conveyor belt 83, and the wet asphalt concrete filler is flatly paved on the mesh conveyor belt 83 through the transmission of the mesh conveyor belt 83, so that the accumulation of the wet asphalt concrete filler is avoided, and the drying of the wet asphalt concrete filler is facilitated; with the transmission of the mesh conveyor belt 83, the dried asphalt concrete filler falls off from the mesh conveyor belt 83 and finally enters the bottom of the drying cylinder 2 through the filter screen 6; the initially dried asphalt concrete filler positioned below the filter screen 6 enters the connecting pipe 42 through the work of the axial flow fan 43 and then flows back into the drying cylinder 2 through the return pipe 41, so that the asphalt concrete filler can be circularly dried, and the drying quality and the drying efficiency of the asphalt concrete filler of the device are improved; when the asphalt concrete filler flows back into the drying cylinder 2 through the return pipe 41, the asphalt concrete filler is sprayed out, which is beneficial to drying the asphalt concrete filler, and meanwhile, the axial flow fan 43 works to generate flowing hot air flow in the drying cylinder 2, so that the temperature in the drying cylinder 2 is more uniform, and the asphalt concrete filler is beneficial to contact with the asphalt concrete filler, thereby further being beneficial to drying the asphalt concrete filler; when the asphalt concrete filler is sprayed, the asphalt concrete filler collides with the mesh conveyor belt 83, and the asphalt concrete filler can be scattered by the mesh conveyor belt 83, so that the asphalt concrete filler is dried; the bottom plate 56 rotates through the work of the driving motor 57, the supporting plate 59 and the upright post 58 rotate under the action of the telescopic rod 59, so that the crushing roller 51 is driven to rotate, the crushing roller 51 can rotate on the surface of the filter screen 6, and the asphalt concrete filler on the surface of the filter screen 6 can be crushed through the crushing roller 51, so that the asphalt concrete filler can be further crushed, and the quality of the asphalt concrete filler is improved; the asphalt concrete filler on the surface of the filter screen 6 can be rolled by the crushing roller 51, so that the probability of the asphalt concrete filler adhering to the surface of the filter screen 6 can be reduced, the residue of the asphalt concrete filler is reduced, and the waste is reduced; by the rotation of the grinding roller 51, the asphalt concrete filler falling on the filter screen 6 can be pushed when the material sprayer 13 sprays the material, so that the asphalt concrete filler on the surface is accumulated on the filter screen 6, and the drying of the asphalt concrete filler is facilitated; after the asphalt concrete filler is dried, the control valve 46 is closed, the switch 45 is opened, and the axial flow fan 43 works, so that the dried asphalt concrete filler can be discharged through the discharge pipe 44, and the discharge of the asphalt concrete filler is facilitated.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.