CN113262894A - Nozzle structure for spraying slurry and spraying equipment with structure - Google Patents

Abstract

The invention relates to a spray nozzle structure and spraying equipment for spraying slurry, wherein the spray nozzle structure comprises: a slurry delivery pipe; the breather pipe penetrates through the slurry conveying pipe; the slurry nozzle is arranged at the discharge port, the slurry nozzle plugs the discharge port of the slurry conveying pipe, a through hole is formed in the middle of the slurry nozzle corresponding to the gas outlet of the breather pipe, and a plurality of slurry outlet notches communicated with the discharge port are formed in the end face of the slurry nozzle; install the turbine in the breather pipe, the turbine has part to stretch out gas outlet and through-hole, blows into high-pressure gas and then high-pressure gas through the turbine and blow off and form rotatory air current from the clearance between turbine and through-hole in to the breather pipe, breaks up the thick liquids that flow out in grout notch department through rotatory air current in order to form the thick liquids granule to accomplish the spraying of thick liquids. The invention can form slurry particles when used for slurry paving to further form a road surface sealing layer, has uneven surface and higher antiskid coefficient, and can obviously improve the antiskid performance of the road surface.

Description

Nozzle structure for spraying slurry and spraying equipment with structure

Technical Field

The invention relates to the field of road construction engineering, in particular to a nozzle structure for spraying slurry and spraying equipment with the structure.

Background

The first one is that a slurry seal vehicle is adopted to spread an emulsified asphalt slurry seal or a modified emulsified asphalt slurry seal (commonly called micro-surfacing) with the thickness of about 0.6cm on an asphalt pavement, stone chips with the aggregate grain diameter of 3mm to 5mm are added, and a binding material is emulsified asphalt or modified emulsified asphalt and a small amount of cement. The second method is to spray asphalt regeneration reducing agent on the asphalt pavement by using an emulsified asphalt spraying vehicle to supplement light components in the road asphalt to increase the durability of the asphalt.

The two methods have the following defects:

the first method is to pave an emulsified asphalt seal layer with the thickness of about 0.6cm, after the emulsified asphalt is demulsified, stone chips of 3mm to 5mm in slurry are exposed to form a new surface structure, the stone chips are suspended in a seal layer mixture and have weak strength, the structure depth is easy to decay under the action of rolling and abrasion of a traveling load, in addition, the bonding strength of a bonding material is poor, the stone chips are easy to scatter and run away from sand, and therefore the antiskid performance of a road surface is gradually lost.

The second method is to spray asphalt regeneration reducer, which increases the light component in asphalt and improves the durability of asphalt, but the regeneration reducer is an oily material mixed and melted by special asphalt material and softening agent, after the regeneration reducer is sprayed, the skid resistance of the pavement decays rapidly, after the regeneration reducer permeates into the asphalt pavement, the pavement can gradually recover the original skid resistance, and the method can only improve the aging resistance of asphalt and does not help the skid resistance of the pavement.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a nozzle structure for spraying slurry and spraying equipment with the structure, which solve the problems that sand leakage and peeling diseases are easy to occur in the existing pavement maintenance measures and the antiskid performance of the pavement is gradually lost and the antiskid performance of the pavement is not helpful.

The technical scheme for realizing the purpose is as follows:

the invention provides a nozzle structure for spraying slurry, which is characterized by comprising:

the slurry conveying pipe is provided with a feeding hole and a discharging hole which are oppositely arranged, and a slurry channel communicated with the feeding hole and the discharging hole is formed inside the slurry conveying pipe;

the air pipe is penetrated in the slurry conveying pipe and is provided with an air inlet and an air outlet, the air outlet is positioned inside the discharge hole, and an air channel communicated with the air inlet and the air outlet is formed inside the air pipe;

the slurry nozzle is arranged at the discharge port, the discharge port is blocked by the slurry nozzle, a through hole is formed in the middle of the slurry nozzle corresponding to the gas outlet, and a plurality of slurry outlet notches communicated with the discharge port and the slurry channel are formed in the end face of the slurry nozzle; and

and the turbine is arranged in the vent pipe, part of the turbine extends out of the gas outlet and the through hole, high-pressure gas is introduced into the vent pipe, then the high-pressure gas passes through the turbine and is blown out from a gap between the turbine and the through hole to form rotating airflow, and the slurry flowing out of the slurry outlet is scattered by the rotating airflow to form slurry particles, so that the slurry spraying is completed.

The nozzle structure for spraying the slurry can be used for paving the pavement slurry, the nozzle structure breaks up the slurry by forming the rotary air flow so as to form slurry particles, the slurry particles are scattered on the pavement under the action of self gravity so as to form a pavement seal, the hardness of the cured slurry particles depends on the material selection of the slurry, but the structural strength of the cured slurry particles is far higher than that of the stone chip aggregate. The road surface sealing layer formed by arranging the plurality of slurry particles has uneven surface and higher antiskid coefficient, and can obviously improve the antiskid performance of the road surface.

The nozzle structure for spraying slurry of the present invention is further improved in that a tapered structure is provided at an end of the turbine, the tapered structure having a portion extending out of the air outlet and the through hole, and the portion of the tapered structure extending out of the through hole has a size larger than that of a portion located inside the breather pipe.

The nozzle structure for spraying the slurry is further improved in that a turbine valve core is connected to the turbine, and the turbine is mounted on the vent pipe through the turbine valve core.

The nozzle structure for spraying the slurry is further improved in that the slurry conveying pipe is internally provided with an installation channel separated from the slurry channel, and the installation channel is arranged on the inner side of the slurry channel;

the breather pipe is arranged in the installation channel in a penetrating manner and is connected with the slurry conveying pipe.

The nozzle structure for spraying the slurry is further improved in that the slurry outlet notches are obliquely arranged and are arranged at the periphery of the through hole at intervals.

The present invention also provides a spray coating device having a nozzle structure, comprising:

the slurry main pipe is transversely arranged and is provided with a main slurry inlet and a plurality of main slurry outlets;

the nozzle structure is arranged corresponding to the main slurry outlet, and a feed inlet on the nozzle structure is connected with the corresponding main slurry outlet.

The spraying equipment with the nozzle structure is further improved in that the spraying equipment further comprises a mounting seat and a lifting mechanism arranged on the mounting seat, the lifting mechanism can be adjusted in a lifting mode, the lifting mechanism is connected with the main slurry pipe, and the lifting mechanism can be adjusted in a lifting mode to adjust the setting height of the main slurry pipe.

The spraying equipment with the nozzle structure is further improved in that the spraying equipment further comprises an installation seat and a moving adjusting mechanism arranged on the installation seat, the moving adjusting mechanism can horizontally move back and forth, the moving adjusting mechanism is connected with the slurry main pipe, and the slurry main pipe can be driven to horizontally move back and forth by horizontally moving the moving adjusting mechanism back and forth, so that slurry is uniformly sprayed.

The spraying equipment with the nozzle structure is further improved in that the spraying equipment further comprises an air compressor communicated with the air inlet of the vent pipe, high-pressure gas is introduced into the vent pipe through the air compressor, and the pressure of the introduced high-pressure gas can be adjusted.

The spraying equipment with the nozzle structure is further improved in that the slurry main pipe comprises a plurality of pipe units which are connected in a splicing manner, wherein one pipe unit is provided with a main slurry inlet;

each pipe fitting unit is provided with a main slurry outlet;

the end located tube element has a closed end cap.

Drawings

Fig. 1 is a side view of a nozzle structure for spraying slurry according to the present invention.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is an exploded view schematically showing the structure of a nozzle for spraying slurry according to the present invention.

Fig. 4 is a schematic structural view of the spray coating device having the nozzle structure of the present invention.

Fig. 5 is a schematic structural view of a pipe unit provided with a main slurry inlet in the spray coating device with the nozzle structure of the present invention.

Fig. 6 is a schematic structural view of a pipe unit located in the middle of the spray coating device having the nozzle structure of the present invention.

Fig. 7 is a schematic structural view of the pipe unit at the end in the spray coating device having the nozzle structure of the present invention.

Detailed Description

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

Referring to fig. 1, the present invention provides a nozzle structure for spraying slurry and a spraying apparatus having the same, which are used to provide a novel slurry paving manner, and are intended to improve the anti-slip property of the surface after slurry paving. The nozzle structure and the spraying equipment can break up slurry to form slurry particles, and the slurry particles are paved on a road surface to form a particle sealing layer. The slurry has agglomeration property, and under the tension action of surface liquid, the dispersed slurry is agglomerated into spherical slurry particles, and under the action of gravity and gas blowing force, the slurry particles are scattered to the asphalt pavement, so that the asphalt pavement is fully paved, and a particle sealing layer is formed. The spray nozzle structure and the spray equipment with the spray nozzle structure, which are utilized by the spray coating, provide a new slurry paving measure for maintaining the asphalt pavement, and can improve the anti-skid performance of the asphalt wood mold. The nozzle structure for spraying slurry and the spraying equipment having the structure of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1, a side view of a nozzle structure for spraying slurry according to the present invention is shown. Referring to fig. 2, a cross-sectional view a-a of fig. 1 is shown. The structure of the nozzle for spraying slurry according to the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the nozzle structure 21 for spraying slurry according to the present invention includes a slurry delivery pipe 211, a vent pipe 212, a slurry nozzle 213 and a turbine 214, wherein the slurry delivery pipe 211 has an inlet 2111 and an outlet 2112 which are oppositely arranged, a slurry channel 2113 which communicates the inlet 2111 with the outlet 2112 is formed inside the slurry delivery pipe 211, the slurry delivery pipe 211 is connected to the slurry supply device through the inlet 2111, so that the slurry in the slurry supply device can enter the slurry channel 2113 from the inlet 2111, the slurry passes through the slurry channel 2113 and is delivered to the outlet 2112, and then the slurry is delivered from the outlet 2112. The air pipe 212 penetrates the slurry conveying pipe 211, the air pipe 212 is provided with an air inlet 2121 and an air outlet 2122, the air outlet 2122 is located inside the discharge port 2112, and the slurry at the discharge port 2112 is output by the limitation of the pipe wall of the air pipe 212, and the slurry surrounds the air outlet 2122, namely the slurry surrounds the periphery of the air pipe 212. The inside of the breather pipe 212 is formed with a gas passage 2123 communicating with the gas inlet 2121 and the gas outlet 2122, the breather pipe 212 communicates with an air compressor through the gas inlet 2121, high-pressure gas supplied from the air compressor enters the gas passage 2123 through the gas inlet 2121, the high-pressure gas is sent to the gas outlet 2122 through the gas passage 2123, and then the high-pressure gas is output from the gas outlet 2122, and since the gas outlet 2122 is disposed inside the discharge port 2112, the output high-pressure gas is inside the output slurry. The slurry nozzle 213 is installed at the discharge port 2112, and as shown in fig. 3, the slurry nozzle 213 seals the discharge port 2112, a through hole 2131 is formed in the middle of the slurry nozzle 213 corresponding to the gas outlet 2122, and a plurality of slurry outlet slots 2132 communicating with the discharge port 2112 and the slurry channel 2113 are formed in the end surface of the slurry nozzle 213, so that the slurry output from the discharge port 2112 flows out of the slurry outlet slots 2132 formed in the slurry nozzle 213 to form a slurry fluid, the slurry fluid is in a strip shape, and the cross-sectional shape of the slurry fluid is consistent with the outer contour shape of the slurry outlet slots 2132. The turbine 214 is installed in the breather pipe 212, the turbine 214 partially extends out of the air outlet 2122 and the through hole 2131, namely, part of the end of the turbine 214 extends out of the air outlet 2112 and the through hole 2131 and is exposed, after high-pressure gas is introduced into the breather pipe 212, the high-pressure gas flows through the turbine 214 and is subjected to the swirling action of the turbine, and then the high-pressure gas is blown out from a gap between the turbine 214 and the through hole 2131 to form a swirling gas flow, and slurry flowing out of the slurry outlet 2132 is scattered through the swirling gas flow to form slurry particles, so that the slurry spraying is completed.

The spiral blades arranged on the turbine 214 guide and swirl high-pressure gas, so that the high-pressure gas blown out from the gap between the turbine 214 and the through hole 2131 can form rotating airflow which is positioned in the slurry fluid flowing out from the slurry outlet port 2132, the rotating airflow is blown out from the gap and can form an effect of rotating and diffusing outwards, and the rotating airflow is blown to the slurry fluid to disperse the slurry fluid. The slurry for paving has high viscosity although the slurry has fluidity, and the slurry has agglomeration property, and under the tension action of surface liquid, the dispersed slurry is agglomerated into large and small spheroids, namely slurry particles. When the slurry is paved, the slurry is dispersed into slurry particles through the nozzle structure, the slurry particles are scattered on a paving surface under the action of gravity and gas blowing force, and if the slurry is used for paving the asphalt pavement, the slurry particles are scattered on the surface of the asphalt pavement. The slurry particles are mutually staggered and overlapped to form a particle sealing layer, and after being cured, the slurry particles have high hardness, strong cohesive force, large structure depth and higher antiskid coefficient, and the surface particles are convex.

In one embodiment of the present invention, as shown in fig. 2 and 3, a tapered structure 2141 is provided at the end of the turbine 214, the tapered structure 2141 has a portion extending out of the air outlet 2122 and the through hole 2131, and the portion of the tapered structure 2141 extending out of the through hole 2131 has a larger size than the portion located in the vent pipe 212. The conical surface of the conical structure 2141 is arranged to function as a guide surface, high-pressure air flows through the turbine 214 to form rotating air flows, the high-pressure rotating air flows are blown out from a gap between the conical surface of the conical structure 2141 and the through hole 2131, and due to the guide of the conical surface, the blown high-pressure air flows form a pulsating air curtain which is diffused and moved towards the outer periphery, so that the high-pressure air flows can be smoothly blown to the slurry fluid and disperse the slurry fluid.

Preferably, the size of the tapered structure 2141 gradually increases from the end portion located in the vent tube 212 to the end portion located outside the through hole 2131, and the tapered structure 2141 is in a circular truncated cone shape as a whole. The dimension of the end of the cone structure 2141 protruding out of the through hole 2131 is adapted to the dimension of the through hole 2131.

Preferably, the through hole 2131 is a circular hole, and the gap between the tapered structure 2141 and the through hole 2131 is circular arc-shaped, so that the high-pressure gas flow blown out from the gap is tapered to expand downward.

Further, as shown in fig. 2, a turbine spool 2142 is connected to the turbine 214, and the turbine 214 is mounted on the vent pipe 212 via the turbine spool 2142. Specifically, the vent pipe 212 is vertically arranged, the turbine spool 2142 is also vertically arranged, the turbine spool 2142 is arranged in the vent pipe 212, and a part of the top of the turbine spool 2142 extends out of the top of the vent pipe 212.

Still further, as shown in fig. 3, the top of the cone structure 2141 is fixedly connected to the bottom of the turbine spool 2142, a plurality of blades 2143 are fixedly disposed at intervals on the periphery of the cone structure 2141, the blades 2143 are spirally disposed, a portion of the blades 2143 is fixedly disposed on the turbine spool 2142, and the plurality of blades 2143 fixedly disposed on the cone structure 2141 and the turbine spool 2142 form the turbine 214. When high pressure gas flows over the surface of the blades 2143, the gas is subjected to the swirling action of the blades, creating a vortex that forms a rotating gas stream

In a preferred embodiment, the turbine spool 2142 is fixed to the vent tube 212 by a sealing ring, and the vane 2143 is not able to rotate, and the spiral shape of the vane 2143 swirls the high-pressure gas to form a swirling gas flow after the high-pressure gas flows through the vane.

In another preferred embodiment, the turbine spool 2142 is rotatably mounted on the vent pipe 212 by a bearing, and the top of the turbine spool 2142 passes through the bearing and is hermetically connected with the bearing, so that the turbine spool can freely rotate in the vent pipe, and after the high-pressure gas passes through the vanes 2143, the turbine spool 2142 and the vanes 2143 can be driven to rotate, so that the rotation of the vanes 2143 can drive the high-pressure gas to rotate together to form the high-pressure gas flow.

In one embodiment of the present invention, as shown in fig. 2 and 3, a mounting passage 2114 is provided in the slurry transport pipe 211, which is separated from the slurry passage 2113, the mounting passage 2114 being provided inside the slurry passage 2113; the breather pipe 212 is inserted into the installation passage 2114 and connected to the slurry feed pipe 211.

In this embodiment, the slurry transport pipe 211 forms a mounting channel 2114 through an inner pipe wall disposed within the outer pipe wall, the mounting channel 2114 being formed through an inner surface of the inner pipe wall, the mounting channel 2114 being separated from the slurry channel 2113 by the inner pipe wall, thereby leaving the slurry out of contact with the breather pipe 212. A slurry channel 2113 is formed between the outer surface of the inner tube wall and the inner surface of the outer tube wall, the slurry channel 2113 at the inner tube wall being an annular channel. The top opening of the mounting channel 2114 is offset from the inlet 2111 to allow offset piping for slurry and gas.

Preferably, the slurry conveying pipe 211 is an integrally formed structure, and includes a vertical pipe section and a curved pipe section, the top of the curved pipe section is the feeding port 2111, the bottom of the curved pipe section is connected to the top of the vertical pipe section, the bottom of the vertical pipe section is the discharging port 2112, the top opening of the installation channel 2114 is disposed at the top of the vertical pipe section for installing the vent pipe 212, and the vertical pipe section includes an outer pipe wall and an inner pipe wall that are mutually sleeved and connected.

Further, in order to facilitate the connection of the slurry delivery pipe 211 with the pipeline of the slurry supply device, a mounting flange plate is disposed at the feed port 2111 of the slurry delivery pipe 211, and the mounting flange plate can be connected with the corresponding pipeline in a sealing manner through the connecting buckle 23.

In an embodiment of the present invention, as shown in fig. 3, the slurry outlet 2132 is obliquely arranged, and the slurry outlet 2132 is provided in a plurality of numbers and is arranged around the through hole 2131 at intervals. By arranging the plurality of slurry outlet notches 2132, a plurality of slurry fluids can be formed around the through holes 2131, a plurality of slurry particles can be formed by cutting the rotating airflow formed by the high-pressure gas, and the rotating airflow can be continuously cut to form the slurry particles along with the continuous outflow of the slurry fluids.

Preferably, as shown in fig. 2 and 3, the slurry nozzle 213 is covered at the bottom of the slurry feed pipe 211. The bottom of the slurry conveying pipe 211 is a cylindrical structure, and the slurry nozzle 213 is also cylindrical and is clamped at the bottom of the slurry conveying pipe 211. The slurry nozzle 213 includes an outer cylinder wall, an inner cylinder wall, and an end plate connecting the outer cylinder wall and the inner cylinder wall, and a through hole 2131 is formed inside the inner cylinder wall. When the outer cylinder wall is clamped and sleeved on the slurry conveying pipe 211, the inner cylinder wall is connected with the inner pipe wall of the slurry conveying pipe 211 to prevent slurry from permeating into the gas channel 2123 and the through holes 2131, the end face plate is provided with a plurality of slurry outlet notches 2132, and a certain distance is reserved between the slurry outlet notches 2132 and the discharge holes 2112. In order to avoid the leakage of the slurry, sealing rings are arranged at the end surfaces of the inner cylinder wall of the slurry nozzle 213 and the inner pipe wall of the slurry conveying pipe 211, so that the joint of the inner cylinder wall and the inner pipe wall is sealed.

In a preferred embodiment, the slurry nozzle 213 is threadably connected to the end of the slurry feed tube 211. In another preferred embodiment, the slurry nozzle 213 is inserted into the bottom of the slurry pipe 211 and fixed to the slurry pipe 211 by welding.

In one embodiment of the present invention, as shown in fig. 2 and 3, a portion of the top of the vent pipe 212 is located outside the slurry conveying pipe 211, a pipe connector 2124 is disposed at a portion of the vent pipe 212 exposed outside the slurry conveying pipe 211, the pipe connector 2124 is transversely disposed, an air inlet 2121 is disposed at an end of the pipe connector 2124, and the pipe connector 2124 is configured to be capable of being quickly connected to an air pipe of an air compressor. Preferably, the pipe connector 2124 is a circular pipe, and the end thereof is a circular truncated cone, and the size of the outer contour gradually increases from the middle end of the pipe connector 2124, so as to facilitate flexible connection of the air pipe.

The present invention also provides a spray coating device having a nozzle structure, the structure of which will be described below.

As shown in fig. 4, the spraying apparatus 20 with a spraying structure of the present invention includes a main slurry pipe 22 and a plurality of nozzle structures 21, the main slurry pipe 22 is disposed transversely, as shown in fig. 6 to 7, the main slurry pipe 22 has a main slurry inlet 221 and a plurality of main slurry outlets 222, the nozzle structures 21 are disposed corresponding to the main slurry outlets 222, the number of the nozzle structures 21 is the same as the number of the main slurry outlets 222, as shown in fig. 1 to 3, the nozzle structures 21 are the same as the aforementioned nozzle structures 21 for spraying slurry, and specifically, refer to the structural description of the nozzle structures 21. The feed ports 2111 of the nozzle structure 21 are connected to the corresponding main injection ports 222.

Spraying equipment 20 is used for realizing the laying of thick liquids, thick liquids are responsible for 22 and transversely set up, and this thick liquids are responsible for 22 length and can be with the width looks adaptation of shop's face, the thick liquids are responsible for 22 to locating of a plurality of main thick liquids 222 interval, in nozzle structure 21 of every main thick liquids 222 department installation of going out, utilize thick liquids to be responsible for 22 and provide thick liquids for a plurality of nozzle structure 21, thick liquids form the thick liquids granule and scatter on the shop face behind each nozzle structure 21, thereby particle seal has been constituted, thereby can improve the skid resistance on seal surface.

In one embodiment of the present invention, as shown in fig. 4 to 7, the slurry main pipe 22 includes a plurality of pipe units 223 connected in a splicing manner, wherein one pipe unit 223 is provided with a main slurry inlet 221, each pipe unit 223 is provided with a main slurry outlet 222, and the pipe unit 223 at the end has a closed end cap 2231. In this way, the length of the slurry main pipe 22 can be adjusted according to the number of pipe units 223, and the slurry main pipe 22 includes at least one pipe unit shown in fig. 5 and two pipe joint units shown in fig. 7. The pipe unit 223 having the main slurry inlet 221 in the main slurry pipe 22 is preferably located in the middle of the main slurry pipe 22. Preferably, the length of the slurry main pipe 22 may be installed in combination according to the width of the construction road, and the range of the slurry main pipe 22 is generally 0.6m to 4.2 m.

Further, as shown in fig. 5, a slurry inlet pipe 2232 is connected to the top of the pipe unit 223 having the main slurry inlet 221, and the top nozzle of the slurry inlet pipe 2232 is the main slurry inlet 221. The main slurry inlet 221 may be connected to a slurry supply apparatus, which includes a slurry tank for storing slurry and a slurry pump for pumping the slurry in the slurry tank into the main slurry pipe 22 through the main slurry inlet 221. Preferably, the slurry pump can be a diaphragm pump or a screw pump.

Still further, as shown in fig. 5 to 7, a vertically arranged slurry outlet pipe 2233 is connected to the bottom of the pipe unit 223, a bottom nozzle of the slurry outlet pipe 2233 is the main slurry outlet 222, a flange plate is arranged at the bottom nozzle of the slurry outlet pipe 2233, the flange plate can be connected to a mounting flange plate at the feed port 2111 of the slurry conveying pipe 221 of the nozzle structure 21, and after the flange plate and the mounting flange plate are attached to each other, the flange plate and the mounting flange plate are connected in a sealing manner by the connecting buckle 23.

Still further, as shown in fig. 5 and 6, the end portions of the pipe units 223 are provided with connection end plates, and as shown in fig. 4, when two adjacent pipe units 223 are connected, the connection end plates of the two pipe units 223 are attached to each other, and then the connection is hermetically connected by the connection buckle 23.

In an embodiment of the present invention, the spraying device 20 of the present invention further includes a mounting base and a lifting mechanism mounted on the mounting base, the lifting mechanism can be adjusted in a lifting manner, the lifting mechanism is connected to the main slurry pipe 22, and the adjustment of the setting height of the main slurry pipe 22 can be realized by adjusting the lifting mechanism in a lifting manner.

The mount pad can make things convenient for the installation of spraying equipment 20 fixed, when carrying out the laying of thick liquids, can fix the mount pad on the trailer, comes to drive spraying equipment 20 through the removal of trailer and moves together.

Elevating system can carry out lift adjustment for the mount pad, can realize adjusting the height of nozzle structure 21 apart from the surface of paving through elevating system, can adjust the density of paving of thick liquids granule through selecting the speed that proper height cooperation trailer moved forward. Preferably, the height of the bottom end of the nozzle structure 21 from the paving surface ranges from about 60cm to about 120 cm.

In a preferred embodiment, the lifting mechanism is a jack fixedly connected to the mounting base, the jack is adjusted to lift by a telescopic piston rod, the end of the piston rod is connected to the main slurry pipe 22, and the telescopic piston rod drives the main slurry pipe 22 to adjust to lift, thereby adjusting the height of the nozzle structure 22 from the paving surface.

In another preferred embodiment, the lifting mechanism comprises a vertically arranged rail, a sliding block slidably arranged on the rail, and a driving member for driving and connecting the sliding block, the sliding block can be driven by the driving member to move up and down along the rail, and the sliding block can be connected with the main slurry pipe 22 through a bracket so as to carry the main slurry pipe 22 up and down. Wherein the driving member is preferably a push rod motor.

In an embodiment of the present invention, the spraying apparatus 20 of the present invention further includes a mounting base and a movement adjusting mechanism mounted on the mounting base, the movement adjusting mechanism can move horizontally back and forth, the movement adjusting mechanism is connected with the main slurry pipe 22, and the main slurry pipe 22 can be carried by the movement adjusting mechanism to move horizontally back and forth together, so as to uniformly spray the slurry. Preferably, the horizontal back and forth movement of the movable adjusting mechanism is consistent with the distance between two adjacent nozzle structures 21.

Preferably, the movement adjusting mechanism is connected with the main slurry pipe 22 by being connected with the lifting mechanism, and the movement adjusting mechanism drives the lifting mechanism to horizontally move back and forth to carry the main slurry pipe 22 together with the horizontal movement back and forth.

In a preferred embodiment, the movement adjusting mechanism comprises a horizontally disposed chute, a sliding member slidably disposed in the chute, and a power member driving the sliding member to move back and forth along the chute, wherein the sliding member is connected to the lifting mechanism, so as to drive the lifting mechanism to move back and forth together with the main slurry pipe 22. The power part can be a jack and also can be a push rod motor.

In an embodiment of the present invention, the spraying apparatus 20 further includes an air compressor connected to the air inlet 2121 of the air pipe 212, and the air compressor is used to introduce high-pressure air into the air pipe 212, and the pressure of the introduced high-pressure air is adjustable.

Under the condition that the flow rate of the slurry is constant, the pressure of the high-pressure gas is adjusted to adjust the particle size of the slurry particles, and when the pressure of the high-pressure gas is adjusted to be high, the particle size of the slurry particles is reduced.

In one embodiment of the present invention, the viscosity of the slurry is designed to be between 4.5pa.s and 7.5pa.s, the viscosity of the slurry is relatively high, when slurry particles fall on the paving surface under the action of gravity, the slurry particles form pagoda-shaped spherical crowns, and the slurry particles are mutually staggered and overlapped to form a particle seal layer. When the pavement is paved, the slurry material can be selected according to the required hardness, and the slurry particles have high hardness after solidification, strong bonding force, large structure depth and higher antiskid coefficient, and the surface particles are convex.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims (10)

1. A nozzle structure for spraying a slurry, comprising:

the slurry conveying pipe is provided with a feeding hole and a discharging hole which are oppositely arranged, and a slurry channel communicated with the feeding hole and the discharging hole is formed inside the slurry conveying pipe;

the air pipe is penetrated in the slurry conveying pipe and is provided with an air inlet and an air outlet, the air outlet is positioned inside the discharge hole, and an air channel communicated with the air inlet and the air outlet is formed inside the air pipe;

the slurry nozzle is arranged at the discharge port, the discharge port is blocked by the slurry nozzle, a through hole is formed in the middle of the slurry nozzle corresponding to the gas outlet, and a plurality of slurry outlet notches communicated with the discharge port and the slurry channel are formed in the end face of the slurry nozzle; and

and the turbine is arranged in the vent pipe, part of the turbine extends out of the gas outlet and the through hole, high-pressure gas is introduced into the vent pipe, then the high-pressure gas passes through the turbine and is blown out from a gap between the turbine and the through hole to form rotating airflow, and the slurry flowing out of the slurry outlet is scattered by the rotating airflow to form slurry particles, so that the slurry spraying is completed.

2. A nozzle arrangement for spraying slurries as claimed in claim 1, wherein a conical formation is provided at the end of said turbine, said conical formation having a portion extending beyond said outlet opening and said through bore, the portion of said conical formation extending beyond said through bore being of greater dimension than the portion located within said breather tube.

3. The spray nozzle structure for spraying slurry according to claim 1, wherein a turbine spool is connected to the turbine wheel, and the turbine wheel is mounted on the breather pipe through the turbine spool.

4. The nozzle structure for spraying slurry according to claim 1, wherein a mounting passage is provided in the slurry feed pipe so as to be separated from the slurry passage, and the mounting passage is provided inside the slurry passage;

the breather pipe is arranged in the installation channel in a penetrating manner and is connected with the slurry conveying pipe.

5. The nozzle structure for spraying slurry according to claim 1, wherein the slurry outlet is provided in an inclined shape, and the slurry outlet is provided around the through hole at intervals.

6. A spray coating device having a nozzle arrangement, comprising:

the slurry main pipe is transversely arranged and is provided with a main slurry inlet and a plurality of main slurry outlets;

a plurality of nozzle structures as claimed in any one of claims 1 to 5, wherein the nozzle structures are arranged corresponding to the main slurry outlets, and the feed inlets on the nozzle structures are connected with the corresponding main slurry outlets.

7. The coating apparatus with a nozzle structure as claimed in claim 6, further comprising a mounting base and a lifting mechanism mounted on the mounting base, wherein the lifting mechanism is adjustable in height, the lifting mechanism is connected to the main slurry pipe, and the height of the main slurry pipe can be adjusted by adjusting the lifting mechanism in height.

8. The spray coating device with a nozzle structure of claim 6 further comprising a mounting base and a movement adjusting mechanism mounted on the mounting base, wherein the movement adjusting mechanism can move back and forth horizontally, the movement adjusting mechanism is connected with the main slurry pipe, and the main slurry pipe can be carried by the movement adjusting mechanism to move back and forth horizontally, so that slurry can be uniformly sprayed.

9. The coating apparatus having a nozzle structure as claimed in claim 6, further comprising an air compressor communicating with an air inlet of the air duct, wherein the air compressor is adapted to introduce high-pressure air into the air duct, and wherein the pressure of the introduced high-pressure air is adjustable.

10. The spray coating device with a nozzle structure of claim 6 wherein the slurry main pipe comprises a plurality of pipe units connected in a splicing manner, wherein one pipe unit is provided with a main slurry inlet;

each pipe fitting unit is provided with a main slurry outlet;

the end located tube element has a closed end cap.

Images