Polyurea spraying equipment for sewage treatment

Abstract

The utility model discloses polyurea spraying equipment for sewage treatment, and belongs to the technical field of spraying equipment. The polyurea spraying equipment comprises an inner wall support, a spraying barrel and a pushing mechanism, the inner wall support is arranged on the inner wall of the sewage pipeline in a tensioning mode, the spraying barrel is installed on the inner wall support and is concentric with the sewage pipeline, and the pushing mechanism is in linear transmission connection with the spraying barrel. The pushing mechanism is matched with a workbench driving the sewage pipeline to rotate along the axis and used for driving the output end of the spraying barrel to do spiral motion relative to the sewage pipeline. The inner wall support, the spraying barrel and the pushing mechanism work cooperatively, so that the spraying barrel can form a uniform spiral coating on the inner wall of the sewage pipeline. In conclusion, the problems existing in traditional spraying equipment are solved, the spraying quality and efficiency are remarkably improved, and a more efficient and reliable solution is provided for maintenance of a sewage treatment pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of spraying equipment, in particular to a polyurea spraying equipment for sewage treatment. Background Art

[0002] Polyurea is a high-performance elastomeric material formed by the reaction of isocyanate and amino compounds. Spraying polyurea on the interior of sewage treatment pipes can protect them from chemical attacks in sewage thanks to its excellent corrosion and waterproofing properties.

[0003] Currently, most spray coating equipment for pipe interiors uses a probe arm to extend the nozzle into the pipe. Whether the probe arm is a rigid, one-piece, long rod or a telescopic structure, both suffer from mobility issues. Furthermore, the recoil generated by the sudden high-pressure output of the nozzle can cause the probe arm to vibrate. When producing polyurea coatings with existing spray equipment, achieving satisfactory spray quality requires slowing the probe arm's movement, a significant contributor to low spray efficiency.

[0004] Therefore, a sewage pipe spraying equipment with high spraying efficiency and good spraying quality is urgently needed to solve the above technical problems. Utility Model Content

[0005] Purpose of the utility model: to provide a polyurea spraying equipment for sewage treatment to solve the above-mentioned problems existing in the prior art.

[0006] Technical solution: A polyurea spraying equipment for sewage treatment, including an inner wall bracket, a spray barrel and a pushing mechanism. The inner wall bracket is tensioned and arranged on the inner wall of the sewage pipe. The spray barrel is installed on the inner wall bracket and is concentrically arranged with the sewage pipe. The pushing mechanism is connected to the spray barrel in a linear transmission manner. The pushing mechanism cooperates with a workbench that drives the sewage pipe to rotate along the axis, and is used to drive the output end of the spray barrel to perform spiral motion relative to the sewage pipe.

[0007] Furthermore, the inner wall bracket includes a support ring and a compensation wheel group. Several support rings are coaxially distributed in a travel ring array. A compensation wheel group is provided between two adjacent support rings located at the ends of the ring array. Several compensation wheel groups are evenly distributed along the circumference of the support ring, and the end of the compensation wheel group rests against the inner wall of the sewage pipe.

[0008] Furthermore, the compensation wheel group includes an articulated work station, a supporting work station, a sliding rod, a slide, a spring, a rocker arm, a connecting rod and a roller. The articulated work station is installed on the support ring at the end of the ring column, and the supporting work station is installed on the support ring at the secondary end of the ring column. The sliding rod is installed between the articulated work station and the supporting work station, and the slide is slidably installed on the sliding rod. One end of the rocker arm is hinged to the articulated work station, and the other end is hinged to the roller. One end of the connecting rod is hinged to the slide, and the other end is hinged to the middle of the rocker arm. The spring is sleeved on the sliding rod and is located between the slide and the supporting work station.

[0009] Furthermore, the compensation wheel set also includes a support plate, and the support plate is installed between the articulated work station frame and the supporting work station frame.

[0010] Furthermore, the inner wall bracket also includes a structure reinforcement rod, and the structure reinforcement rod is installed on the support rings at both ends of the ring column.

[0011] Furthermore, the spray cylinder is installed in the ring array, and the spray cylinder includes a mounting cylinder, an articulated cylinder and a spray assembly. The mounting cylinder is bolted to the support ring, the articulated cylinder is rotatably connected in the mounting cylinder, the articulated cylinder is transmission-connected to the pushing mechanism, the mounting cylinder and the articulated cylinder are connected by a thrust bearing, the spray assembly is installed on the articulated cylinder, and the output end of the spray assembly extends to the outside of the articulated cylinder.

[0012] Furthermore, the spray assembly includes a feed box, a wire management rack and an output nozzle. The feed box and the wire management rack are both installed on the hinged cylinder. The feed box is connected to the output nozzle through a hose. The output nozzle is installed on the wire management rack, and the end extends outside the hinged cylinder.

[0013] Beneficial effects: The inner wall bracket, spray barrel, workbench and pushing mechanism in the utility model work together, so that the spray barrel can form a uniform spiral coating on the inner wall of the sewage pipe.

[0014] 1. Improved stability during spraying: The design of the support ring and compensation wheel set of the inner wall bracket ensures the stable support of the spray barrel on the inner wall of the pipe, which can maintain stability and reduce vibration even under high-pressure spraying conditions.

[0015] 2. Improved spraying quality and efficiency: The spray barrel combines the linear transmission of the push mechanism with the rotation of the sewage pipe, so that the output nozzle can efficiently complete the spiral motion, thereby greatly improving the spraying efficiency while ensuring the coating quality

[0016] 3. Adapt to pipes of different lengths: For sewage pipes of different lengths, the workbench and pushing mechanism can be adjusted to adapt, and even a two-way spraying method can be used to complete the spraying task of long pipes, which improves the applicability and flexibility of the equipment.

[0017] In summary, the utility model not only solves the problems existing in traditional spraying equipment, but also significantly improves the spraying quality and efficiency, providing a more efficient and reliable solution for the maintenance of sewage treatment pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model in working state;

[0019] Figure 2 It is a structural diagram of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the inner wall bracket in the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the compensation wheel set in the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the spray barrel in the utility model.

[0023] The figures are marked as follows: 1. Inner wall bracket; 11. Support ring; 12. Structural reinforcement rod; 13. Compensating wheel group; 131. Articulated work station frame; 132. Support work station frame; 133. Slide rod; 134. Support plate; 135. Slide; 136. Spring; 137. Rocker; 138. Connecting rod; 139. Roller; 2. Spray barrel; 21. Mounting barrel; 22. Articulated barrel; 23. Feed box; 24. Wire management rack; 25. Output nozzle; 3. Sewage pipe. DETAILED DESCRIPTION

[0024] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0025] like Figure 1-Figure 5 As shown, a polyurea spraying device for sewage treatment includes an inner wall bracket 1, a spraying barrel 2 and a pushing mechanism. The inner wall bracket 1 is tensioned and arranged on the inner wall of the sewage pipe 3. The spraying barrel 2 is installed on the inner wall bracket 1 and is concentrically arranged on the sewage pipe 3. The pushing mechanism is connected to the spraying barrel 2 in a linear transmission manner. The pushing mechanism cooperates with a workbench that drives the sewage pipe 3 to rotate along the axis, and is used to drive the output end of the spraying barrel 2 to perform spiral motion relative to the sewage pipe 3.

[0026] The polyurea spraying equipment effectively improves the stability, spraying quality and efficiency of the spraying process through the coordinated work of the inner wall bracket 1, the spray barrel 2, the workbench and the pushing mechanism. The support ring 11 and the compensation wheel group 13 in the inner wall bracket 1 ensure the stable support of the spray barrel on the inner wall of the pipe, and can remain stable even under high-pressure spraying conditions, reducing vibration. The spray barrel 2 is combined with the rotation of the sewage pipe 3 through the linear transmission of the pushing mechanism, so that the output nozzle 25 can efficiently complete the spiral motion, thereby greatly improving the spraying efficiency while ensuring the coating quality. In addition, the equipment can also adapt to pipes of different lengths. By adjusting the workbench and the pushing mechanism, it can even adopt a two-way spraying method to complete the spraying task of long pipes, thereby improving the applicability and flexibility of the equipment. In summary, the utility model not only solves the problems existing in traditional spraying equipment, but also significantly improves the spraying quality and efficiency, providing a more efficient and reliable solution for the maintenance of sewage treatment pipelines.

[0027] like Figure 3 As shown, the inner wall support 1 includes support rings 11 and compensation wheel groups 13. Several support rings 11 are coaxially arranged in a circular array. Compensation wheel groups 13 are located between two adjacent support rings 11 at the ends of the array. Several compensation wheel groups 13 are evenly distributed along the circumference of the support rings 11, and the ends of the compensation wheel groups 13 rest against the inner wall of the sewage pipe 3. The inner wall support 1 also includes structural reinforcement rods 12, which are mounted on the support rings 11 at both ends of the circular array.

[0028] Specifically, the addition of the structural reinforcement rod 12 further strengthens the stability of the inner wall bracket 1 and improves the operational stability of the device during the rotation of the sewage pipe. The compensation wheel set 13 enables the device to adapt to sewage pipes 3 of different diameters, improving the applicability and flexibility of the device.

[0029] like Figure 4 As shown, the compensation wheel group 13 includes an articulated work station 131, a supporting work station 132, a sliding rod 133, a slide 135, a spring 136, a rocker arm 137, a connecting rod 138 and a roller 139. The articulated work station 131 is installed on the support ring 11 at the end of the ring column, the supporting work station 132 is installed on the support ring 11 at the secondary end of the ring column, the sliding rod 133 is installed between the articulated work station 131 and the supporting work station 132, the slide 135 is slidably installed on the sliding rod 133, one end of the rocker arm 137 is hinged to the articulated work station 131, and the other end is hinged to the roller 139, one end of the connecting rod 138 is hinged to the slide 135, and the other end is hinged to the middle of the rocker arm 137, and the spring 136 is sleeved on the sliding rod 133 and is located between the slide 135 and the supporting work station 132.

[0030] In particular, the compensation wheel groups 13 located at both ends of the inner wall bracket 1 are preferably staggered at a certain angle. The design of staggering at a certain angle can improve the support stability. The staggered compensation wheel groups 13 can better disperse the force generated during the spraying process; improve the transmission of force, reduce the vibration or displacement caused by excessive force on a single point, and help maintain the linear motion of the spray barrel; reduce the effect of eccentricity. Since the sewage pipe 3 may have a certain degree of irregular shape or eccentricity, the staggered compensation wheel groups 13 can provide support in different directions, reducing the impact of eccentricity on the spraying operation.

[0031] The compensating wheel assembly 13 also includes a support plate 134, which is mounted between the articulated workstation 131 and the supporting workstation 132. The support plate 134 is designed primarily to protect the slide bar 133 and ensure greater stability and reliability during operation. It protects the slide bar 133 from damage from external factors, such as collisions or foreign objects, ensuring smooth sliding of the slide bar and its carriage 135. This also enhances structural stability, helps reduce vibration of the slide bar 133 during operation, and improves the overall stability of the compensating wheel assembly 13.

[0032] like Figure 2 and Figure 5 As shown, the spraying tube 2 is mounted within the ring array and comprises a mounting tube 21, an articulated tube 22, and a spray assembly. The mounting tube 21 is bolted to the support ring 11, and the articulated tube 22 is rotatably connected within the mounting tube 21. The articulated tube 22 is in transmission connection with the push mechanism. The mounting tube 21 and the articulated tube 22 are connected via a thrust bearing. The spray assembly is mounted on the articulated tube 22, and the output end of the spray assembly extends outside the articulated tube 22. The thrust bearing plays a crucial role in the process of pushing and pulling the articulated tube 22 by the push mechanism. It allows the articulated tube 22 to rotate smoothly under axial force, significantly reducing friction between the articulated tube 22 and the mounting tube 21, ensuring that the articulated tube 22 can rotate smoothly even under axial force from the push mechanism during the spraying process. This not only helps maintain the stability of the spraying tube 2, especially when the push mechanism pushes and pulls the articulated tube 22, ensuring that the spraying tube 2 can accurately follow the rotation of the sewage pipe 3, achieving efficient spiral spraying, but also reduces wear, helping to extend the service life of the equipment and optimize spraying quality.

[0033] Among them, the spraying assembly includes a feed box 23, a wire management rack 24 and an output nozzle 25. The feed box 23 and the wire management rack 24 are both installed on the hinged tube 22. The feed box 23 is connected to the output nozzle 25 through a hose. The output nozzle 25 is installed on the wire management rack 24, and the end extends to the outside of the hinged tube 22.

[0034] The placement of the feed box 23 within the articulated barrel 22 aims to improve the stability of the spray barrel 2 during spraying of the inner wall of the sewage pipe 3 by increasing its deadweight. This design not only optimizes the center of gravity distribution of the spray barrel 2, reduces interference from external suspension components, and improves the overall reliability and sealing of the equipment, but also helps maintain the stability of the spray barrel 2 under high-pressure spraying conditions, reduces vibration, and ensures linear motion during the spraying process, thereby improving spraying quality and efficiency. Furthermore, the internal design simplifies maintenance, saves external space, and makes the equipment more compact, facilitating spraying operations in confined spaces.

[0035] The polyurea spraying equipment of this utility model is closely related to the length of the sewage pipe 3. As the size of the sewage pipe 3 changes, the workbench and the push mechanism must be adjusted accordingly. The workbench is primarily used to secure the sewage pipe 3 and drive it in circular motion along its axis. The push mechanism is responsible for pushing the system consisting of the inner wall bracket 1 and the spray barrel 2, ensuring that the articulated barrel 22 within the spray barrel 2 does not rotate on its own.

[0036] Before spraying begins, the spray material must first be filled into the supply tank 23 and the opening of the output nozzle 25 adjusted according to the desired coating thickness and characteristics to complete the mixing ratio. Next, the workbench must secure the sewage pipe 3, ensuring it faces the inner wall bracket 1. At this point, the pushing mechanism pushes the system consisting of the inner wall bracket 1 and the spray barrel 2 toward the inner wall of the sewage pipe 3, preparing for the spraying operation.

[0037] The spraying process consists of three simultaneous actions:

[0038] Action 1: The workbench drives the sewage pipe 3 to rotate.

[0039] Action 2: The pushing mechanism pulls the system consisting of the inner wall bracket 1 and the spray barrel 2 out of the sewage pipe 3 to achieve linear movement of the spray barrel 2.

[0040] Action 3: The output nozzle 25 starts spraying the material onto the inner wall of the sewage pipe 3.

[0041] Under the combined effect of the above three actions, the inner wall bracket 1 and the mounting tube 21 of the spray tube 2 rotate synchronously with the sewage pipe 3 under the action of the tension force, while the articulated tube 22, under the action of the pushing mechanism, moves linearly along the output direction of the pushing mechanism. As a result of this series of actions, the output nozzle 25 moves in a spiral relative to the inner wall of the sewage pipe 3, thereby achieving efficient spraying of the inner wall of the sewage pipe 3.

[0042] For special cases, such as when the sewage pipe 3 is long, the spraying can be carried out in sections by using a two-way spraying method to improve the spraying efficiency. Specifically, you can start spraying from one end of the pipe, and then spray in the opposite direction from the other end until the spraying operation of the entire pipe is completed. For sewage pipes 3 of moderate length, in order to improve the operational stability of the equipment during the entire spraying process, it is necessary to add an inner wall bracket 1 to support it when it exits the sewage pipe 3. This means that when the spray barrel 2 completes the spraying task and exits the sewage pipe 3, a stable support structure is needed to maintain the stability of the spray barrel 2 to prevent the spray barrel 2 from shaking or tilting due to loss of support, which affects the spraying quality.

[0043] The polyurea spraying equipment of this utility model not only solves the problems existing in traditional spraying equipment, but also significantly improves the spraying quality and efficiency, providing a more efficient and reliable solution for the maintenance of sewage treatment pipelines. The above detailed description shows the efficiency and practicality of this equipment in actual application.

[0044] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A polyurea spraying device for sewage treatment, characterized in that: The invention comprises an inner wall bracket (1), a spray barrel (2) and a pushing mechanism, wherein the inner wall bracket (1) is tensionedly arranged on the inner wall of a sewage pipe (3), the spray barrel (2) is mounted on the inner wall bracket (1) and is concentrically arranged with the sewage pipe (3), the pushing mechanism is linearly connected to the spray barrel (2), and the pushing mechanism cooperates with a workbench that drives the sewage pipe (3) to rotate along an axis, and is used to drive the output end of the spray barrel (2) to perform spiral motion relative to the sewage pipe (3).

2. The polyurea spraying equipment for sewage treatment according to claim 1, characterized in that: The inner wall bracket (1) comprises a support ring (11) and a compensation wheel group (13); a plurality of support rings (11) are coaxially distributed in a travel ring array; a compensation wheel group (13) is provided between two adjacent support rings (11) at the ends of the ring array; the plurality of compensation wheel groups (13) are evenly distributed along the circumference of the support ring (11); and the ends of the compensation wheel groups (13) abut against the inner wall of the sewage pipe (3).

3. The polyurea spraying equipment for sewage treatment according to claim 2, characterized in that: The compensation wheel group (13) comprises an articulated work station frame (131), a supporting work station frame (132), a slide bar (133), a slide bar (135), a spring (136), a rocker (137), a connecting rod (138) and a roller (139), wherein the articulated work station frame (131) is mounted on the supporting ring (11) at the end of the ring column, the supporting work station frame (132) is mounted on the supporting ring (11) at the secondary end of the ring column, and the slide bar (133) is mounted on the articulated work station frame (131). ) and the supporting station frame (132), the slide (135) is slidably mounted on the slide rod (133), one end of the rocker (137) is hinged on the hinged station frame (131), and the other end is hinged with a roller (139), one end of the connecting rod (138) is hinged on the slide (135), and the other end is hinged to the middle of the rocker (137), and the spring (136) is mounted on the slide rod (133) and is located between the slide (135) and the supporting station frame (132).

4. The polyurea spraying equipment for sewage treatment according to claim 3, characterized in that: The compensation wheel set (13) further comprises a support plate (134), wherein the support plate (134) is installed between the articulated work station frame (131) and the support work station frame (132).

5. The polyurea spraying equipment for sewage treatment according to claim 2, characterized in that: The inner wall bracket (1) further comprises a structural reinforcement rod (12), wherein the structural reinforcement rod (12) is mounted on the support rings (11) at both ends of the ring array.

6. The polyurea spraying equipment for sewage treatment according to claim 2, characterized in that: The spraying cylinder (2) is installed in the ring array, and the spraying cylinder (2) includes a mounting cylinder (21), an articulated cylinder (22) and a spraying assembly. The mounting cylinder (21) is bolted to the support ring (11), and the articulated cylinder (22) is rotatably connected in the mounting cylinder (21). The articulated cylinder (22) is transmission-connected to the pushing mechanism. The mounting cylinder (21) and the articulated cylinder (22) are connected via a thrust bearing. The spraying assembly is installed on the articulated cylinder (22), and the output end of the spraying assembly extends to the outside of the articulated cylinder (22).

7. The polyurea spraying equipment for sewage treatment according to claim 6, characterized in that: The spraying assembly comprises a feed box (23), a wire management rack (24) and an output nozzle (25); the feed box (23) and the wire management rack (24) are both mounted on a hinged cylinder (22); the feed box (23) is connected to the output nozzle (25) via a hose; the output nozzle (25) is mounted on the wire management rack (24), and the end portion of the output nozzle extends outside the hinged cylinder (22).

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