Pneumatic belt rolling type particle spraying device

Abstract

The utility model relates to a pneumatic rolling type particle spraying device which comprises a drying material tank, an air pump is arranged on the drying material tank, a conveying pipeline is arranged on the air pump, a spray head is arranged at the end, away from the air pump, of the conveying pipeline in a sleeved mode, and a pressing roller is arranged on the spray head. The nozzle is arranged at one end, far away from the air pump, of the conveying pipeline, the feed opening is formed in one end, opposite to the ground, of the nozzle, and the compression roller is used for compacting the anti-skid particles falling on the steel pipe, so that the anti-skid particles scattered on tools such as the steel pipe and the like can be compacted, the adhesive force is improved, and the service life of the anti-skid particles is prolonged. Meanwhile, the height of the anti-skid particle spraying device can be adjusted according to different operation sites, and the anti-skid particle spraying device is suitable for more scenes.

Description

Technical Field

[0001] The utility model relates to an anti-skid particle spraying device, in particular to a pneumatic roller-pressed particle spraying device. Background Art

[0002] The oil and gas pipelines laid on the seabed are composed of an anti-corrosion layer, an insulation layer, and a concrete layer. There is a layer of anti-skid particles between the anti-corrosion layer and the concrete coating. Its function is to increase the bonding force between the two coatings and prevent the quality problem of detachment. Therefore, it is very important to ensure the quality of the anti-skid particle coating. The particle spraying device currently used is a vibration type sprayer. The device uses a vibrator installed under the hopper. The anti-skid particles are loaded in the hopper. After the vibration of the vibrator, the particles fall naturally on the steel pipe by gravity. There are the following problems in use:

[0003] 1. The particles have low adhesion to the tube and are easy to fall off;

[0004] 2. It is easy to cause uneven spraying, affecting the adhesion of the weight coating;

[0005] In view of this, it is necessary to provide a new anti-skid particle spraying device that can solve the above technical problems or effectively alleviate the above technical problems. Utility Model Content

[0006] The basic technical problem to be solved by the utility model is to provide a pneumatic roller-type particle spraying device, which can not only improve the adhesion of the anti-skid particles, but also make the anti-skid particles output evenly, is suitable for various operation scenarios, and has high efficiency.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a pneumatic roller-pressed particle spraying device, including a drying material tank, an air pump is provided on the drying material tank, a conveying pipeline is provided on the air pump, a nozzle is provided on the end of the conveying pipeline away from the air pump, a pressure roller is provided on the nozzle, the nozzle includes a nozzle arranged on the end of the conveying pipeline away from the air pump and a discharge port arranged at the end of the nozzle opposite to the ground, and the pressure roller is used for compacting the anti-skid particles that fall on the steel pipe.

[0008] Preferably, the nozzle is a nozzle provided with at least one channel.

[0009] Preferably, the pressing roller is a hollow pressing roller.

[0010] Preferably, a plurality of particle deceleration bars parallel to the horizontal plane are arranged in the nozzle.

[0011] Preferably, a balancing air nozzle is provided through the nozzle, and the balancing air nozzle is used to blow away the anti-skid particles.

[0012] Preferably, a vibrator and a ground wire are provided on the outer peripheral surface of the nozzle, the vibrator is used to prevent the anti-skid particles from being blocked in the nozzle, and the ground wire is used to eliminate the interference of static electricity on the movement of the anti-skid particles.

[0013] Preferably, an auxiliary air circuit pipe is provided on the air pump, and a pressure regulating valve is provided at one end of the auxiliary air circuit pipe away from the air pump.

[0014] Preferably, the auxiliary air circuit includes a delivery air pipeline and a concentration air pipeline, the delivery air pipeline is used to provide the pressure for delivering anti-skid particles in the delivery pipeline, and the concentration air pipeline is used to change the air distribution to adjust the concentration and pressure of the anti-skid particles delivered in the delivery pipeline, one end of the delivery air pipeline is connected to the air pump, and the other end of the delivery air pipeline is connected to the pressure regulating valve, one end of the concentration air pipeline is connected to the air pump, and the other end of the concentration air pipeline is connected to the pressure regulating valve, and the delivery air pipeline and the concentration air pipeline form a Y-shaped tee through the air pump and the delivery pipeline.

[0015] Preferably, a roller cooling air pipeline is also provided on the pressure regulating valve, and the roller cooling air pipeline is opposite to the roller at one end away from the pressure regulating valve, and the roller cooling air pipeline is used to cool the heat generated by the friction between the roller and the steel pipe.

[0016] Preferably, the pressure regulating valve includes at least five sub-pressure regulating valves, each of which is respectively connected to one end of the conveying gas pipeline away from the air pump, one end of the concentration gas pipeline away from the air pump, one end of the roller cooling gas pipeline away from the special pressure roller, one end of the balancing air nozzle away from the nozzle, and one end of the vibrator away from the nozzle.

[0017] Preferably, the delivery pipeline and the auxiliary gas line pipe are hoses.

[0018] Preferably, a nozzle lifting device is also provided on the delivery pipeline, and the nozzle lifting device includes a bracket, a slideway axially arranged on the surface of the bracket and a gear group arranged on the bracket. A lifter is also provided on the bracket, and the delivery pipeline is connected to the lifter through the gear group so that the delivery pipeline slides on the slideway.

[0019] Preferably, a flow sensing device is provided on the delivery pipeline, and the flow sensing device is electrically connected to an alarm device.

[0020] Through the above technical scheme, it can be seen that the utility model arranges a pressure roller under the nozzle, and the pressure roller is a hollow pressure roller. According to actual needs, the corresponding filler is filled into the hollow pressure roller to reach the required weight, so that the anti-skid particles scattered on the steel pipe can be compacted to improve the adhesion. A plurality of particle deceleration bars and nozzles are arranged in the nozzle, and a balancing air nozzle is also arranged through the nozzle to break up the anti-skid particles so that the anti-skid particles are dispersed more evenly. A vibrator and a ground wire are also arranged on the outer surface of the nozzle. The vibrator is used to vibrate the outer peripheral surface of the nozzle to knock off the anti-skid particles stuck to the inner wall of the nozzle to prevent the anti-skid particles from sticking together and blocking the discharge port. The ground wire on the nozzle guides the static electricity on the nozzle into the ground to prevent the static electricity from accumulating and releasing in the nozzle, thereby reducing the risk of fire and explosion caused by static electricity.

[0021] Furthermore, the auxiliary gas circuit pipe in the utility model includes a delivery gas pipeline and a concentration gas pipeline. The delivery gas pipeline is used to provide the pressure for delivering anti-skid particles in the delivery pipeline, and the concentration gas pipeline is used to change the gas distribution to adjust the concentration and pressure of the anti-skid particles in the delivery pipeline. According to the process requirements, the concentration and pressure of the anti-skid particles in the delivery pipeline are adjusted, thereby adjusting the flow and uniformity of the anti-skid particles.

[0022] At the same time, the utility model is also provided with a nozzle lifting device on the conveying pipeline. By adjusting the nozzle lifting device, the height of the nozzle can be flexibly adjusted according to the needs of the site. A flow sensing device is also provided on the conveying pipeline. The flow sensing device is electrically connected to an alarm device. The conveying condition of the anti-skid particles in the conveying pipeline is detected by the flow sensing device. When there is a problem in the conveying of the conveying pipeline, an alarm is sounded through the alarm device to remind the operator, which is convenient for the operator to use.

[0023] Finally, the utility model uses an air pump to transport the anti-skid particles, which reduces labor and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a particle spraying device according to a specific embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of a nozzle of a particle spraying device according to a specific embodiment of the utility model.

[0026] Description of Reference Numerals

[0027] 1. Air pump 2. Delivery pipeline 3. Auxiliary air pipeline

[0028] 4. Nozzle 5. Balanced air nozzle 6. Particle deceleration rod

[0029] 7. Vibrator 8. Feeding port 9. Ground wire

[0030] 10. Pressure regulating valve 11. Press roller 12. Press roller cooling air pipeline

[0031] 13. Drying tank 14. Nozzle 15. Flow sensor

[0032] 16. Alarm device 17. Sprinkler lifting device DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation modes described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the specific implementation modes described below.

[0034] like Figure 1 to Figure 2 As shown, the basic embodiment of the utility model provides a pneumatic roller-pressed particle spraying device, including a drying tank 13, an air pump 1 is provided on the drying tank 13, a conveying pipeline 2 is provided on the air pump 1, a nozzle 14 is sleeved on the end of the conveying pipeline 2 away from the air pump 1, a pressure roller 11 is provided on the nozzle 14, the nozzle 14 includes a nozzle 4 arranged on the end of the conveying pipeline 2 away from the air pump 1 and a discharge port 8 arranged at the end of the nozzle 14 opposite to the ground, and the pressure roller 11 is used for compacting the anti-skid particles that fall on the steel pipe.

[0035] In order to facilitate understanding of the technical solution of the particle spraying device of the present invention, the technical effects of the anti-skid particle spraying device of the present invention will be specifically described below with reference to the accompanying drawings.

[0036] like Figure 1 As shown, the particle spraying device of the utility model includes a drying material tank 13, an air pump 1 is arranged on the drying material tank 13, a conveying pipeline 2 is connected to the air pump 1, a nozzle 14 is sleeved on the end of the conveying pipeline 2 away from the air pump 1, and a pressing roller 11 is arranged under the nozzle 14, wherein the nozzle 14 includes a nozzle arranged on the end of the conveying pipeline 2 away from the air pump 1 and a discharge port 8 arranged at the end of the nozzle 14 opposite to the bottom surface, the pressing roller 11 is opposite to the discharge port 8, the anti-skid particles in the drying material tank 13 are transported to the end of the nozzle 14 through the conveying pipeline 2 by using the air pump, and the nozzle 14 sprays the anti-skid particles through the nozzle The anti-skid particles are poured into the nozzle 14 through the discharge port 8 to the designated position of the steel pipe or other tools under the pressure roller 11, and then the anti-skid particles are compacted by the pressure roller 11 to improve the adhesion of the anti-skid particles. The pressure roller 11 can be a hollow pressure roller. The weight of the pressure roller 11 can be adjusted by filling different materials in the pressure roller 11 to achieve application in different scenarios. At the same time, the drying tank 13 can adopt a single material barrel, and a dryer is installed at the bottom of the drying tank 13 to keep the drying tank 13 in a dry state. The drying tank 13 can also be provided with an observation hole on the drying tank 13 to facilitate the grasp of the material level.

[0037] Furthermore, if Figure 1 As shown, the nozzle 4 has at least one channel to increase the efficiency of conveying the anti-skid particles. Furthermore, the nozzle 4 is arranged obliquely downward in the nozzle 14 so that the anti-skid particles collide with the inner wall of the nozzle and rebound in an S shape, making the anti-skid particles sprayed more evenly.

[0038] Furthermore, if Figure 1 As shown, the pressure roller 11 is a hollow pressure roller. Steel sand can be filled in the pressure roller 11 for counterweighting according to actual conditions. The counterweight of the pressure roller 11 is adjusted to the required weight to ensure that the pressure of the pressure roller 11 on the anti-skid particles is reasonable.

[0039] Furthermore, if Figure 2 As shown, a plurality of particle deceleration bars 6 parallel to the horizontal plane are arranged in the nozzle 14. By arranging a plurality of particle deceleration bars 6 in the nozzle 14, the anti-skid particles in the nozzle 14 can collide with the particle deceleration bars 6, breaking up the anti-skid particles stuck together, making the anti-skid particles sprayed out more evenly.

[0040] Furthermore, if Figure 1 and Figure 2 As shown, a balancing air nozzle 5 is provided through the nozzle 14, and the balancing air nozzle 5 is used to blow away the anti-skid particles in the nozzle 14 so that the anti-skid particles are sprayed more evenly.

[0041] Furthermore, if Figure 1 and Figure 2 As shown, a vibrator 7 and a ground wire 9 are provided on the outer peripheral surface of the nozzle 14. The vibrator 7 is used to vibrate the outer peripheral surface of the nozzle 14 to knock off the anti-skid particles adhering to the inner wall of the nozzle 14 to prevent the anti-skid particles from sticking together and blocking the discharge port 8. The ground wire 9 on the nozzle 14 conducts the static electricity on the nozzle 14 to the ground to prevent the accumulation and release of static electricity in the nozzle 14, thereby reducing the risk of fire and explosion caused by static electricity.

[0042] Furthermore, if Figure 1 As shown, the air pump 1 is provided with an auxiliary air circuit pipe 3, and a pressure regulating valve is provided at one end of the auxiliary air circuit pipe 3 away from the air pump 1. The pressure of the air pump is adjusted by adjusting the pressure regulating valve, thereby flexibly adjusting the pressure of conveying anti-skid particles.

[0043] More preferably, if Figure 1As shown, the auxiliary air circuit pipe 3 includes a delivery air pipeline and a concentration air pipeline, the delivery air pipeline is used to provide the pressure for the delivery pipeline 2 to deliver the anti-skid particles, and the concentration air pipeline is used to change the air distribution to adjust the concentration and pressure of the anti-skid particles delivered in the delivery pipeline 2, wherein one end of the delivery air pipeline is connected to the air pump 1, and the other end of the delivery air pipeline is connected to the pressure regulating valve 10, one end of the concentration air pipeline is connected to the air pump 1, and the other end of the concentration air pipeline is connected to the pressure regulating valve 10, the delivery air pipeline and the concentration air pipeline form a Y-shaped tee through the air pump and the delivery pipeline 2, and the air pressure in the delivery air pipeline and the concentration air pipeline is adjusted by the pressure regulating valve 10, so that the delivery amount and uniformity of the anti-skid particles in the delivery pipeline 2 can be adjusted.

[0044] Furthermore, if Figure 1 As shown, a roller cooling air pipeline 12 is also provided on the pressure regulating valve 10. The end of the roller cooling air pipeline 12 away from the pressure regulating valve 10 is opposite to the roller 11. The roller cooling air pipeline 12 is used to cool the heat generated by the contact between the roller 11 and the surface coating of the high-temperature steel pipe to prevent the roller 11 from overheating.

[0045] Preferably, if Figure 1 As shown, the pressure regulating valve 10 includes at least five sub-pressure regulating valves, each of which is respectively connected to one end of the conveying gas pipeline away from the air pump 1, one end of the concentration gas pipeline away from the air pump 1, one end of the pressure roller cooling gas pipeline 12 away from the special pressure roller 11, one end of the balancing air nozzle 5 away from the nozzle 14, and one end of the vibrator 7 away from the nozzle 14. By separately connecting the conveying gas pipeline, the concentration gas pipeline, the pressure roller cooling gas pipeline 12, the balancing air nozzle 5 and the vibrator 7 to the multiple pressure regulating valves 10, the purpose of independent adjustment is achieved, which is convenient for use.

[0046] Preferably, if Figure 1 As shown, the delivery pipeline 2 and the auxiliary gas line pipe 3 are soft hoses, which facilitate the length adjustment of the delivery pipeline 2 and the auxiliary gas line pipe 3. More preferably, the delivery pipeline 2 and the auxiliary gas line pipe 3 both have a reserved length at one end to facilitate the up and down movement of the nozzle lifting device 17.

[0047] Furthermore, if Figure 1 As shown, a nozzle lifting device 17 is also provided on the delivery pipeline 2, wherein the nozzle lifting device 17 includes a bracket, a slideway axially arranged on the surface of the bracket and a gear set arranged on the bracket, and a lifter is also provided on the bracket. The delivery pipeline 2 is connected to the lifter through the gear set. The lifter is adjusted to move the delivery pipeline 2 up and down through the gear set so that the delivery pipeline 2 slides on the slideway, which is convenient for flexibly adjusting the height of the nozzle 14 according to the needs of the site.

[0048] Furthermore, if Figure 1As shown, a flow sensing device 15 is provided on the conveying pipeline 2, and the flow sensing device 15 is electrically connected to an alarm device 16. The flow sensing device 15 detects the conveying condition of the anti-skid particles in the conveying pipeline 2. When there is a problem in the conveying of the conveying pipeline 2, the alarm device 16 sounds an alarm to remind the operator.

[0049] In order to have a deeper understanding of the technical concept and advantages of the particle spraying device of the utility model, the following is an introduction Figure 1 and Figure 2 The utility model is described in detail with respect to the structural form of the anti-skid particle spraying device with relatively comprehensive preferred features.

[0050] A drying material tank 13 is placed on the ground, a dryer is arranged at the bottom of the drying material tank 13, an air pump 1 is arranged on the drying material tank 13, a conveying pipeline 2 is arranged through the air pump 1, and an auxiliary air circuit pipe 3 is also arranged on the air pump 1, wherein the auxiliary air circuit pipe 3 includes a conveying air pipeline and a concentration air pipeline, the conveying air pipeline is used to provide the pressure for conveying anti-skid particles in the conveying pipeline 2, one end of the conveying air pipeline is connected to the air pump 1, and the other end is connected to the pressure regulating valve 10, the concentration air pipeline is used to change the gas distribution to adjust the concentration and pressure of the anti-skid particles conveyed in the conveying pipeline 2, the end of the conveying pipeline 2 away from the air pump 1 is sleeved with a nozzle 14, the nozzle 14 includes a nozzle 4 arranged at the end of the conveying pipeline 2 away from the air pump 1 and a discharge port 8 at the end of the nozzle 14 opposite to the ground, wherein, The nozzle 4 is at least one channel, specifically, the nozzle 4 is a two-channel nozzle 4, and the nozzle 4 is arranged obliquely downward in the nozzle 14, so that the anti-skid particles collide with the inner wall of the nozzle and rebound in an S shape, so that the anti-skid particles are sprayed more evenly. A pressure roller 11 opposite to the discharge port 8 is arranged on the nozzle 14, and the pressure roller 11 is a hollow pressure roller. According to actual needs, steel sand is filled into the hollow pressure roller to reach the required weight, and the anti-skid particles are placed in the drying tank 13. The conveying pipeline 2 conveys the anti-skid particles to the nozzle 4 through the air pump 1, and the nozzle 4 sprays the anti-skid particles into the nozzle 14. The anti-skid particles fall from the discharge port 8 below the nozzle 14 onto the steel pipe or other tools that need to be coated with the anti-skid particles. The pressure roller 11 compacts the anti-skid particles with its own pressure to improve the adhesion of the anti-skid particles. A roller cooling pipeline 12 is provided on the pressure regulating valve 10. The end of the roller cooling pipeline 12 away from the pressure regulating valve 10 is opposite to the roller 11, and is used to cool the heat generated by the contact between the roller 11 and the surface coating of the high-temperature steel pipe. A plurality of particle deceleration rods 6 parallel to the horizontal plane are provided in the nozzle 14. A balancing air nozzle 5 is also provided through the nozzle 14. The balancing air nozzle 5 and the particle deceleration rod 6 are used to break up the anti-skid particles entering the nozzle 14 to ensure that the anti-skid particles are evenly dispersed. A vibrator 7 and a ground wire 9 are provided on the outer peripheral surface of the nozzle 14. The vibrator 7 is used to prevent the anti-skid particles from being blocked in the nozzle 14, and the ground wire 9 is used to eliminate the interference of static electricity on the movement of the anti-skid particles. Among them, the pressure regulating valve 10 includes at least five sub-pressure regulating valves, each of which is remote from the conveying gas pipeline. One end away from the air pump 1, one end of the concentration air pipeline away from the air pump 1, one end of the pressure roller cooling air pipeline 12 away from the special pressure roller 11, one end of the balancing air nozzle 5 away from the nozzle 14 and one end of the vibrator 7 away from the nozzle 14 are connected to achieve separate adjustment of the pressure of the balancing air nozzle 5, the concentration air pipeline, the pressure roller cooling air pipeline 12, the vibrator 7 and the conveying air pipeline, which is convenient for operators to use. A nozzle lifting device 17 is also provided on the conveying pipeline 2. The nozzle lifting device 17 includes a bracket, a slideway axially arranged on the surface of the bracket and a gear set arranged on the bracket. A lifter is also provided on the bracket. The conveying pipeline 2 is connected to the lifter through the gear set. At the same time, the conveying pipeline 2 and the auxiliary air path pipe 3 are hoses, which are convenient for adjusting the length of the conveying pipeline 2 and the auxiliary air path pipe 3.The conveying pipeline 2 and the auxiliary gas line pipe 3 are both reserved at one end to allow the conveying pipeline 2 to slide on the slideway. The conveying pipeline 2 is provided with a flow sensing device 15, and the flow sensing device 15 is electrically connected to an alarm device 16. The flow sensing device 15 detects the conveying status of the anti-skid particles in the conveying pipeline 2. When there is a problem in the conveying of the conveying pipeline 2, the alarm device 16 will sound an alarm to remind the operator.

[0051] It can be seen from the above description of the utility model that the utility model arranges a pressure roller 11 below the nozzle 14, and the pressure roller 11 is a hollow pressure roller. According to actual needs, the corresponding filler is filled into the hollow pressure roller to reach the required weight, so that the anti-skid particles sprinkled on the steel pipe can be compacted to improve the adhesion. A plurality of particle deceleration rods 6 and nozzles 4 are arranged in the nozzle 14, and a balancing air nozzle 5 is also arranged through the nozzle 14 to break up the anti-skid particles so that the anti-skid particles are dispersed more evenly. A vibrator 7 and a ground wire 9 are also arranged on the outer surface of the nozzle 14. The vibrator 7 is used to vibrate the outer peripheral surface of the nozzle 14 to knock off the anti-skid particles stuck to the inner wall of the nozzle 14 to prevent the anti-skid particles from sticking together and blocking the discharge port 8. The ground wire 9 on the nozzle 14 guides the static electricity on the nozzle 14 into the ground to prevent the static electricity from accumulating in the nozzle 14, resulting in mutual repulsion between the anti-skid particles, affecting the particle density and the potential static electricity accumulation causing the increase in the magnetism of the tube body.

[0052] Furthermore, the auxiliary gas circuit pipe 3 in the utility model includes a delivery gas pipeline and a concentration gas pipeline. The delivery gas pipeline is used to provide the pressure for the delivery pipeline 2 to deliver the anti-skid particles, and the concentration gas pipeline is used to change the gas distribution to adjust the concentration and pressure of the anti-skid particles transported in the delivery pipeline 2. According to the process requirements, the concentration and pressure of the anti-skid particles transported in the delivery pipeline 2 are adjusted, thereby adjusting the flow and uniformity of the anti-skid particles.

[0053] At the same time, the utility model is also provided with a nozzle lifting device 17 on the conveying pipeline 2. By adjusting the nozzle lifting device 17, the height of the nozzle 14 can be flexibly adjusted according to the needs of the site. A flow sensing device 15 is also provided on the conveying pipeline 2. The flow sensing device 15 is electrically connected to the alarm device 16. The conveying condition of the anti-skid particles in the conveying pipeline 2 is detected by the flow sensing device 15. When there is a problem in the conveying of the conveying pipeline 2, an alarm is sounded through the alarm device 16 to remind the operator, which is convenient for the operator to use.

[0054] Finally, the utility model uses the air pump 1 to transport the anti-skid particles, which reduces labor and improves efficiency.

[0055] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A pneumatic roller-type particle spraying device, characterized in that: The drying material tank (13) comprises an air pump (1) disposed on the drying material tank (13), a conveying pipeline (2) disposed on the air pump (1), a nozzle (14) being sleeved on one end of the conveying pipeline (2) away from the air pump (1), and a pressure roller (11) being disposed on the nozzle (14); The nozzle (14) comprises a nozzle (4) arranged on an end of the delivery pipeline (2) away from the air pump (1) and a discharge port (8) arranged at an end of the nozzle (14) opposite to the ground; The pressing roller (11) is used to compact the anti-skid particles that fall on the steel pipe.

2. A pneumatic roller-type particle spraying device according to claim 1, characterized in that: The nozzle (4) is a nozzle provided with at least one channel.

3. The pneumatic roller-type particle spraying device according to claim 1, characterized in that: The pressing roller (11) is a hollow pressing roller.

4. The pneumatic roller-type particle spraying device according to claim 1, characterized in that: A plurality of particle deceleration rods (6) parallel to the horizontal plane are arranged in the nozzle (14).

5. A pneumatic belt roller type particle spraying device according to claim 4, characterized in that: The nozzle (14) is provided with a balancing air nozzle (5) penetrating therethrough, and the balancing air nozzle (5) is used to blow away the anti-skid particles.

6. A pneumatic belt roller type particle spraying device according to claim 5, characterized in that: A vibrator (7) and a ground wire (9) are arranged on the outer peripheral surface of the nozzle (14); the vibrator (7) is used to prevent the anti-skid particles from being blocked in the nozzle (14); and the ground wire (9) is used to eliminate the interference of static electricity on the movement of the anti-skid particles.

7. A pneumatic roller-type particle spraying device according to claim 6, characterized in that: The air pump (1) is provided with an auxiliary air circuit pipe (3), and a pressure regulating valve (10) is provided at one end of the auxiliary air circuit pipe (3) away from the air pump (1).

8. The pneumatic roller-type particle spraying device according to claim 7, characterized in that: The auxiliary gas line (3) comprises a delivery gas line and a concentration gas line, wherein the delivery gas line is used to provide the pressure for the delivery pipeline (2) to deliver the anti-skid particles, and the concentration gas line is used to change the gas distribution to adjust the concentration and pressure of the anti-skid particles delivered in the delivery pipeline (2); One end of the delivery gas pipeline is connected to the air pump (1), and the other end of the delivery gas pipeline is connected to the pressure regulating valve (10); one end of the concentration gas pipeline is connected to the air pump (1), and the other end of the concentration gas pipeline is connected to the pressure regulating valve (10); the delivery gas pipeline and the concentration gas pipeline form a Y-shaped three-way connection with the delivery pipeline (2) through the air pump (1).

9. A pneumatic roller-type particle spraying device according to claim 8, characterized in that: The pressure regulating valve (10) is also provided with a pressure roller cooling air pipeline (12), and one end of the pressure roller cooling air pipeline (12) away from the pressure regulating valve (10) is opposite to the pressure roller (11), and the pressure roller cooling air pipeline (12) is used to cool the heat generated by the contact between the pressure roller (11) and the coating on the surface of the steel pipe.

10. The pneumatic roller-type particle spraying device according to claim 9, characterized in that: The pressure regulating valve (10) comprises at least five sub-pressure regulating valves, each of which is respectively connected to an end of the conveying gas pipeline away from the air pump (1), an end of the concentration gas pipeline away from the air pump (1), an end of the pressure roller cooling gas pipeline (12) away from the pressure roller (11), and an end of the vibrator (7) away from the nozzle (14).

11. The pneumatic roller-type particle spraying device according to claim 7, characterized in that: The delivery pipeline (2) and the auxiliary gas pipeline (3) are flexible pipes.

12. The pneumatic roller-type particle spraying device according to claim 1, characterized in that: The delivery pipeline (2) is also provided with a nozzle lifting device (17), the nozzle lifting device (17) comprising a bracket, a slideway axially arranged on the surface of the bracket and a gear set arranged on the bracket, and the bracket is also provided with a lifter, and the delivery pipeline (2) is connected to the lifter via the gear set so that the delivery pipeline (2) slides on the slideway.

13. The pneumatic roller-type particle spraying device according to claim 1, characterized in that: The delivery pipeline (2) is provided with a flow sensing device (15), and the flow sensing device (15) is electrically connected to an alarm device (16).

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