Anti-corrosion mortar spraying device in pipeline

Abstract

The utility model discloses an anti-corrosion mortar spraying device in a pipeline, comprising a transport trolley and a motor, wherein a horizontal tank body is fixedly mounted on the transport trolley, and the tank body is rotatably connected with a rotating shaft assembly that penetrates horizontally, and the rotating shaft assembly comprises a sleeve and an inner tube that are arranged concentrically, and the inner tube penetrates axially from the middle of the sleeve, and a plurality of impellers are fixedly mounted on the inner tube located in the tank body, and the motor drives the sleeve and the inner tube to rotate synchronously through a pulley assembly, and the inner port of the sleeve is located on one side of the plurality of impellers, and a wheel disc of a circular shell structure is mounted on the protruding end of the sleeve and the inner tube, and a plurality of uniformly distributed nozzles are mounted on the wheel disc along the circumference, and the outer end of the sleeve is connected with the inner cavity of the wheel disc, and one end of the inner tube extends into the wheel disc and is equipped with a plurality of radial air blowing pipes, and the air blowing pipes are inserted into the pipe at the tail of the nozzle one by one. The impeller pushes the mortar input into the tank body to the end of the sleeve, and each nozzle is equipped with an air blowing pipe, which is beneficial to increase the spraying speed and reduce the blockage of the nozzle.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-corrosion spraying treatment, in particular to an anti-corrosion mortar spraying device in a pipeline. Background Art

[0002] At present, most underground drainage pipes use concrete pipes or metal steel pipes. However, as the service life of many operating drainage pipes increases, the pipes themselves are prone to corrosion or even damage. Therefore, such pipes need to be reinforced with anti-corrosion. At present, cement anti-corrosion mortar is generally used to spray the pipes, and the spraying adopts a spraying device that can crawl inside the pipe. For example, the Chinese utility model patent with announcement number CN217043145U discloses an anti-corrosion spraying construction device for large-diameter water supply steel pipes, which includes a vehicle body, a sprayer body is provided on the vehicle body, and a spraying assembly for rust removal spraying on the inner wall of the steel pipe is provided on the sprayer body; the spraying assembly includes a spraying pipe rotatably connected to the sprayer body at one end, and nozzles connected to the spraying pipe are evenly arranged on the outer surface at the other end of the spraying pipe along its circumference. Through the above structure, the vehicle body moves in the steel pipe, so that the spraying machine body on it can transport cement mortar into the spraying pipe and spray it onto the inner wall of the steel pipe through the nozzle, so that the inner wall of the steel pipe can be better protected from corrosion. However, the above scheme also has the following disadvantages: the anti-corrosion mortar contains some insoluble particles, so direct nozzle spraying is prone to clogging. Utility Model Content

[0003] The utility model aims to provide an anti-corrosion mortar spraying device in a pipeline to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-corrosion mortar spraying device in a pipeline, comprising a transport trolley and a motor, a transverse tank body is fixedly mounted on the transport trolley, the motor is fixedly mounted on the top of the tank body, an L-shaped feed pipe is mounted on the top of the tank body, the tank body is rotatably connected with a transversely penetrating rotating shaft assembly, the rotating shaft assembly comprises a concentrically arranged sleeve and an inner tube, the inner tube axially penetrates from the middle of the sleeve, a plurality of radial spoke rod supports are arranged between the outer wall of the inner tube and the inner wall of the sleeve, and the spoke rods are located on the tank body. A plurality of impellers are fixedly mounted on the inner tube in the motor, the motor drives the sleeve and the inner tube to rotate synchronously through a pulley assembly, the inner port of the sleeve is located on one side of the plurality of impellers, the protruding ends of the sleeve and the inner tube are mounted with a wheel disk of a circular shell structure, a plurality of evenly distributed nozzles are mounted on the wheel disk along the circumference, the nozzles are distributed radially and the inner ends are connected with the wheel disk, the outer end of the sleeve is connected with the inner cavity of the wheel disk, one end of the inner tube extends into the wheel disk and is mounted with a plurality of radial air blowing pipes, the air blowing pipes are inserted into the connecting pipes at the tail of the nozzles one by one.

[0005] Preferably, a trumpet-shaped flow guide cover is installed at one end of the tank body, and the flow guide cover is used to guide the mortar pushed axially by the impeller to the inner port of the casing.

[0006] Preferably, a rotary joint is installed at the other end of the inner tube, and the rotary joint is used to connect compressed air.

[0007] Compared with the prior art, the beneficial effects of the utility model are: the motor is used to drive the wheel disc to rotate, and the impeller located inside the tank body rotates synchronously therewith. The impeller pushes the mortar input into the tank body to the end of the casing, and each nozzle is equipped with an air blowing pipe, which is beneficial to increase the spraying speed and reduce the clogging of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 It is a schematic cross-sectional structural diagram of the wheel disc of the utility model.

[0010] In the figure: 1. Carrying trolley; 2. Tank body; 3. Motor; 4. Casing; 5. Impeller; 6. Rotary joint; 7. Feed pipe; 8. Inner pipe; 9. Wheel; 10. Nozzle; 11. Air blowing pipe; 12. Fairing hood. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] See also Figure 1-2The utility model provides a technical solution: an anti-corrosion mortar spraying device in a pipeline, comprising a carrying trolley 1 and a motor 3. The carrying trolley 1 can move in the pipeline. A horizontal tank body 2 is fixedly installed on the carrying trolley 1. The motor 3 is fixedly installed on the top of the tank body 2. An L-shaped feed pipe 7 is installed on the top of the tank body 2. The feed pipe 7 is used to connect a pipeline for inputting mortar. The tank body 2 is rotatably connected with a horizontally penetrating rotating shaft assembly. The rotating shaft assembly comprises a concentrically arranged sleeve 4 and an inner tube 8. The inner tube 8 axially penetrates the middle part of the sleeve 4. A plurality of radial spoke rod supports are arranged between the outer wall of the inner tube 8 and the inner wall of the sleeve 4. An annular flow channel is formed between the inner tube 8 and the sleeve 4 for circulating and conveying mortar. The length of the sleeve 4 is much smaller than the length of the inner tube 8. A plurality of impellers 5 are fixedly mounted on the inner tube 8 in the tank body 2. A trumpet-shaped deflector 12 is mounted at one end of the tank body 2. The deflector 12 is used to direct the mortar pushed axially by the impeller 5 to the inner port of the casing 4. The rotation of the impeller 5 can increase the spraying pressure of the mortar. In many cases of use, the trolley moves a long distance into the pipeline, and the mortar is transported from the outside through the pipeline to the spraying site. The mortar output pressure drops, affecting the spraying effect.

[0013] The motor 3 drives the sleeve 4 and the inner tube 8 to rotate synchronously through the pulley assembly. The inner port of the sleeve 4 is located on one side of the multiple impellers 5. The protruding ends of the sleeve 4 and the inner tube 8 are equipped with a wheel disc 9 with a circular shell structure. The wheel disc 9 is equipped with multiple evenly distributed nozzles 10 along the circumference. The nozzles 10 are distributed radially and the inner ends are connected to the wheel disc 9. The outer end of the sleeve 4 is connected to the inner cavity of the wheel disc 9. One end of the inner tube 8 extends into the wheel disc 9 and is equipped with multiple radial air blowing pipes 11. The air blowing pipes 11 are inserted into the connecting pipes at the tail of the nozzle 10 one by one. The other end of the inner tube 8 is equipped with a rotary joint 6. The rotary joint 6 is used to connect compressed air. The outer end of the air blowing pipe 11 blows out high-pressure gas to increase the spraying speed of the mortar and reduce the blockage of the nozzle 10.

[0014] Working principle: The motor 3 is used to drive the wheel disc 9 to rotate, and the impeller 5 located inside the tank body 2 rotates synchronously therewith. The impeller 5 pushes the mortar input into the tank body 2 to the end of the sleeve 4. The outer end of the inner tube 8 is connected to the compressed gas, and the mortar is sprayed out from the rotating nozzle 10, and the spraying is uniform. At the same time, the air pipe 11 blows air to increase the spraying speed.

[0015] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for spraying anti-corrosion mortar in a pipeline, comprising a transport trolley (1) and a motor (3), wherein a horizontal tank body (2) is fixedly mounted on the transport trolley (1), the motor (3) is fixedly mounted on the top of the tank body (2), and an L-shaped feed pipe (7) is mounted on the top of the tank body (2), characterized in that: The tank body (2) is rotatably connected to a transversely penetrating rotating shaft assembly, the rotating shaft assembly comprising a concentrically arranged sleeve (4) and an inner tube (8), the inner tube (8) axially penetrating the middle of the sleeve (4), a plurality of radial spoke supports being arranged between the outer wall of the inner tube (8) and the inner wall of the sleeve (4), a plurality of impellers (5) being fixedly mounted on the inner tube (8) located in the tank body (2), the motor (3) driving the sleeve (4) and the inner tube (8) to rotate synchronously through the pulley assembly, the inner port of the sleeve (4) being located at the plurality of impellers (5) On one side of the impeller (5), the protruding ends of the sleeve (4) and the inner tube (8) are equipped with a wheel disc (9) of a circular shell structure, and the wheel disc (9) is equipped with a plurality of uniformly distributed nozzles (10) along the circumference, the nozzles (10) are distributed radially and the inner ends are connected to the wheel disc (9), the outer end of the sleeve (4) is connected to the inner cavity of the wheel disc (9), one end of the inner tube (8) extends into the wheel disc (9) and is equipped with a plurality of radial air blowing pipes (11), and the air blowing pipes (11) are inserted into the connecting pipes at the tail of the nozzles (10) one by one.

2. The anti-corrosion mortar spraying device in pipelines according to claim 1 is characterized in that: A trumpet-shaped flow guide cover (12) is installed at one end of the tank body (2), and the flow guide cover (12) is used to guide the mortar pushed axially by the impeller (5) to the inner port of the casing (4).

3. The anti-corrosion mortar spraying device in pipeline according to claim 2 is characterized in that: A rotary joint (6) is installed at the other end of the inner tube (8), and the rotary joint (6) is used to receive compressed air.

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