Dirt cleaning device for slag water pipeline

By using a slag and water pipeline fouling cleaning device in the slag and water system of a coal-water slurry gasification unit, combining mechanical scraping and hydraulic flushing, the problems of low cleaning efficiency and high water consumption in existing technologies have been solved, achieving efficient fouling removal and stable operation of the unit.

CN224168247UActive Publication Date: 2026-04-28HENAN JINDADI CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN JINDADI CHEM IND CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In the existing technology, when cleaning the vertical straight pipe section of the coal-water slurry gasification unit, the slag water system relies solely on hydraulic flushing, which is inefficient and consumes a large amount of water, making it difficult to effectively remove dense scale.

Method used

A slag and water pipe cleaning device is adopted, which combines mechanical scraping and water flushing. The scraper is driven by a drive motor and equipped with multiple high-pressure nozzles to clean the inner wall of the pipe from different angles. The device is combined with a limit unit to ensure stable operation in the pipe.

Benefits of technology

It significantly improves cleaning efficiency, reduces water consumption, achieves rapid and effective dirt removal, and ensures stable operation of the device in pipelines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a slag water pipeline dirt cleaning device, relates to pipeline dirt cleaning field, including spacing unit, flushing unit and scale scraping unit, flushing unit includes water diversion box and water inlet hose, the outside wall of water diversion box is equipped with a plurality of high pressure nozzle around, its top water inlet is fixedly equipped with the hard water pipe, and the water inlet hose is equipped with the water inlet. The rotating shaft and the two scraping plates are driven by the driving motor to rotate, dirt on the inner wall of a pipeline is scraped in the rotating process of the scraping plates, meanwhile, the inner wall of the pipeline can be washed from different angles through the multiple high-pressure sprayers, the cleaning effect is good, and the cleaning effect is good. A mechanical scraping and hydraulic scouring collaborative operation mode is formed, dirt on the inner wall of the pipeline can be rapidly and effectively removed, the cleaning efficiency is remarkably improved, meanwhile, the water consumption is reduced, and water resources are saved.
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Description

Technical Field

[0001] This utility model belongs to the field of pipe fouling cleaning, specifically relating to a fouling cleaning device for slag and water pipes. Background Technology

[0002] The slag and water system of a coal-water slurry gasification unit processes black water that is high-temperature, high-pressure, and rich in solid particles (such as unburned carbon, ash, and slag) for extended periods. These solid particles can easily cause wear and perforation of pipes and fittings, scale buildup, and poor drainage during flow, and may even lead to complete pipeline blockage. Therefore, to ensure the safe and stable operation of the slag and water system, it is necessary to regularly open the corresponding inspection ports to clean the vertical straight pipe sections and the inner walls of bends.

[0003] Currently, when cleaning long, straight pipe sections, a high-pressure rotary nozzle is typically connected to a soft water pipe and then slowly lowered from the inspection port at the top of the pipe, allowing the high-pressure rotary nozzle to sequentially flush the inner wall of the pipe. In actual flushing, relying solely on water force requires repeated rinsing for dense scale buildup, resulting in high water consumption and low cleaning efficiency.

[0004] Therefore, we propose a device for cleaning scale from slag and water pipes to solve the above problems. Utility Model Content

[0005] To address the current problem that cleaning long, straight pipe sections relies solely on water flushing, which requires repeated rinsing for dense scale buildup, resulting in high water consumption and low cleaning efficiency, this invention provides a scale cleaning device for slag and water pipes.

[0006] The solution adopted by this utility model to solve its technical problem is: a sludge and water pipe dirt cleaning device, including a limiting unit, a flushing unit and a scraping unit. The flushing unit includes a water distribution box and a water inlet hose. Multiple high-pressure nozzles are installed around the outer wall of the water distribution box. A hard water pipe is fixedly installed at the top water inlet. The bottom end of the water inlet hose is detachably connected to the top end of the hard water pipe.

[0007] The limiting unit includes an adjustment mechanism and at least a plurality of T-shaped seats. The plurality of T-shaped seats are arranged around the outside of the hard water pipe. A plurality of pulleys are fixedly installed on the side of the T-shaped seats near the inner wall of the pipe. The adjustment mechanism is installed between the hard water pipe and the T-shaped seats to adjust the distance between the T-shaped seats and the hard water pipe.

[0008] The scraping unit includes a drive motor and at least two scrapers. The drive motor is fixedly installed at the bottom of the water distribution box, and its output shaft is connected to a rotating shaft. The scrapers and the rotating shaft are connected by a support assembly. The scrapers contact the inner wall of the pipe and are used to scrape off hard dirt.

[0009] Preferably, a protective cover is provided on the outside of the drive motor, and the protective cover is fixedly installed at the bottom of the water distribution box.

[0010] Preferably, the hard water pipe and the inlet hose are connected by a water pipe connector.

[0011] Preferably, the adjusting mechanism includes a fixed sleeve, a sliding sleeve, and a spring. The fixed sleeve is fixedly installed on the lower section of the hard water pipe, and the sliding sleeve is fitted onto the hard water pipe and located above the fixed sleeve. At least three hinge seats are installed on the outer surfaces of both the fixed sleeve and the sliding sleeve. A pull rod is hinged to the hinge seat through a pin, and the other end of the pull rod is hinged to the protrusion of the T-shaped seat through a pin. The spring is fitted onto the outside of the hard water pipe and located between the water pipe joint and the sliding sleeve.

[0012] Preferably, at least two mounting protrusions are provided on the outer side of the rotating shaft.

[0013] Preferably, the support assembly includes a connecting clip and two telescopic arms. The connecting clip is bolted to the mounting protrusion, and the telescopic arms are fixedly installed between the connecting clip and the scraper.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model drives a rotating shaft and two scrapers to rotate via a drive motor. During the rotation, the scrapers scrape off the dirt on the inner wall of the pipe. At the same time, multiple high-pressure nozzles can rinse the inner wall of the pipe from different angles, forming a coordinated operation mode of mechanical scraping and water flushing. This can quickly and effectively remove dirt from the inner wall of the pipe, significantly improve cleaning efficiency, and reduce water consumption, thus saving water resources.

[0016] 2. This utility model involves placing the device inside a pipe. Under the elastic force of a spring, the sliding sleeve moves downward. Under the action of multiple sets of pull rods, multiple T-shaped seats expand outward, and multiple sets of pulleys contact the inner wall of the pipe. This ensures that the device moves steadily downward in a vertical pipe, avoiding deviation and jamming. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the hard water pipe and water distribution box of this utility model.

[0019] In the diagram: 1 Hard water pipe, 2 Inlet hose, 3 Water pipe connector, 41 Sliding sleeve, 42 Hinge seat, 43 Tie rod, 44 Pulley, 45 T-shaped seat, 46 Spring, 47 Fixing sleeve, 51 Water distribution box, 52 High-pressure nozzle, 61 Protective cover, 62 Drive motor, 63 Connecting clip, 64 Telescopic arm, 65 Scraper, 66 Mounting protrusion, 67 Rotary shaft. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1-2 This utility model provides a technical solution for a slag and water pipe cleaning device:

[0022] Example 1:

[0023] according to Figure 1 and Figure 2 As shown, the device includes a limiting unit, a flushing unit, and a scraping unit. The flushing unit includes a water distribution box 51 and an inlet hose 2. Multiple high-pressure nozzles 52 are installed around the outer wall of the water distribution box 51. A hard water pipe 1 is fixedly installed at the top water inlet. The bottom end of the inlet hose 2 is connected to the top end of the hard water pipe 1 through a water pipe connector 3. The inlet hose 2 is connected to an external high-pressure water pump, so that water is transported to the water distribution box 51 through the inlet hose 2 and the hard water pipe 1, and then sprayed out by multiple high-pressure nozzles 52 to flush the inner wall of the pipe from different angles. The water pipe connector 3 makes the inlet hose 2 and the hard water pipe 1 detachable, so that the device and the inlet hose 2 can be carried separately after cleaning.

[0024] The limiting unit includes an adjustment mechanism and at least a plurality of T-shaped seats 45. The plurality of T-shaped seats 45 are arranged around the outside of the hard water pipe 1. A plurality of pulleys 44 are fixedly installed on the side of the T-shaped seat 45 near the inner wall of the pipe, and the pulleys 44 are in contact with the inner wall of the pipe.

[0025] The adjustment mechanism includes a fixed sleeve 47, a sliding sleeve 41, and a spring 46. The fixed sleeve 47 is fixedly installed on the lower section of the hard water pipe 1, and the sliding sleeve 41 is sleeved on the hard water pipe 1 and located above the fixed sleeve 47. The sliding sleeve 41 can slide up and down along the hard water pipe 1.

[0026] At least three hinge seats 42 are installed on the outer surfaces of both the fixed sleeve 47 and the sliding sleeve 41. A pull rod 43 is hinged to the hinge seat 42 through a pin. The other end of the pull rod 43 is hinged to the protrusion of the T-shaped seat 45 through a pin. The spring 46 is sleeved on the outside of the hard water pipe 1 and is located between the water pipe joint 3 and the sliding sleeve 41. Under the elastic force of the spring 46, the sliding sleeve 41 moves downward. Under the action of multiple sets of pull rods 43, multiple T-shaped seats 45 expand outward, and multiple sets of pulleys 44 contact the inner wall of the pipe respectively, ensuring that the device moves downward stably in the center of the vertical pipe and avoiding deflection and jamming.

[0027] The scraping unit includes a drive motor 62 and at least two scrapers 65. The drive motor 62 is fixedly installed at the bottom of the water distribution box 51, and its output shaft is connected to a rotating shaft 67. At least two mounting protrusions 66 are provided on the outer side of the rotating shaft 67. The scrapers 65 and the rotating shaft 67 are connected by a support assembly, which includes a connecting clip 63 and two telescopic arms 64. The connecting clip 63 is installed on the mounting protrusions 66 by bolts, and the telescopic arms 64 are fixedly installed between the connecting clip 63 and the scrapers 65. The scrapers 65 are in contact with the inner wall of the pipe. The drive motor 62 drives the rotating shaft 67 and the two scrapers 65 to rotate. During the rotation, the scrapers 65 scrape the dirt on the inner wall of the pipe.

[0028] In practical use, the sludge and water pipe dirt cleaning device of this utility model first connects the other end of the water inlet hose 2 to the outlet of the external high pressure water pump, and then connects the water inlet hose 2 to the hard water pipe 1 through the water pipe connector 3.

[0029] Open the inspection port at the top of the slag and water pipe that needs to be cleaned, place the device into the vertical straight pipe section, and then stop pulling the sliding sleeve 41. Under the elastic force of the spring 46, the sliding sleeve 41 moves downward. Under the action of multiple sets of pull rods 43, multiple T-shaped seats 45 expand outward, and multiple sets of pulleys 44 contact the inner wall of the pipe respectively, ensuring that the device descends stably in the center of the vertical pipe.

[0030] The external high-pressure water pump and drive motor 62 are started. The drive motor 62 drives the rotating shaft 67 and two scrapers 65 to rotate. During the rotation, the scrapers 65 scrape the dirt on the inner wall of the pipe. At the same time, water is delivered to the water distribution box 51 through the water inlet hose 2 and hard water pipe 1, and then sprayed out by multiple high-pressure nozzles 52 to rinse the inner wall of the pipe from different angles. Finally, the water inlet hose 2 is gradually lowered. Under the weight of the device, the device slowly descends along the inner wall of the pipe to clean the dirt on the inner wall of the vertical straight pipe section.

[0031] Example 2:

[0032] Based on Example 1, such as Figure 2 As shown, a protective cover 61 is provided on the outside of the drive motor 62, and the protective cover 61 is fixedly installed at the bottom of the water distribution box 51.

Claims

1. A device for cleaning scale from sludge and water pipes, comprising a limiting unit, a flushing unit, and a scale scraping unit, characterized in that: The rinsing unit includes a water distribution box and a water inlet hose. Multiple high-pressure nozzles are installed around the outer wall of the water distribution box, and a hard water pipe is fixedly installed at the top water inlet. The bottom end of the water inlet hose is detachably connected to the top end of the hard water pipe. The limiting unit includes an adjustment mechanism and at least a plurality of T-shaped seats. The plurality of T-shaped seats are arranged around the outside of the hard water pipe. A plurality of pulleys are fixedly installed on the side of the T-shaped seats near the inner wall of the pipe. The adjustment mechanism is installed between the hard water pipe and the T-shaped seats to adjust the distance between the T-shaped seats and the hard water pipe. The scraping unit includes a drive motor and at least two scrapers. The drive motor is fixedly installed at the bottom of the water distribution box, and its output shaft is connected to a rotating shaft. The scrapers and the rotating shaft are connected by a support assembly. The scrapers contact the inner wall of the pipe and are used to scrape off hard dirt.

2. The slag and water pipeline fouling cleaning device according to claim 1, characterized in that: A protective cover is provided on the outside of the drive motor, and the protective cover is fixedly installed at the bottom of the water distribution box.

3. The slag and water pipeline fouling cleaning device according to claim 1, characterized in that: The hard water pipe and the inlet hose are connected by a water pipe connector.

4. The slag and water pipeline fouling cleaning device according to claim 3, characterized in that: The adjusting mechanism includes a fixed sleeve, a sliding sleeve, and a spring. The fixed sleeve is fixedly installed on the lower section of the hard water pipe, and the sliding sleeve is fitted onto the hard water pipe and located above the fixed sleeve. At least three hinge seats are installed on the outer surfaces of both the fixed sleeve and the sliding sleeve. A pull rod is hinged to the hinge seat through a pin, and the other end of the pull rod is hinged to the protrusion of the T-shaped seat through a pin. The spring is fitted onto the outside of the hard water pipe and located between the water pipe joint and the sliding sleeve.

5. The slag and water pipeline fouling cleaning device according to claim 1, characterized in that: At least two mounting protrusions are provided on the outer side of the rotating shaft.

6. The slag and water pipeline fouling cleaning device according to claim 5, characterized in that: The support structure includes a connecting clip and two telescopic arms. The connecting clip is bolted to the mounting protrusion, and the telescopic arms are fixedly installed between the connecting clip and the scraper.