Search

CN-121974157-A - Pneumatic ash conveying pipeline cleaning device

CN121974157ACN 121974157 ACN121974157 ACN 121974157ACN-121974157-A

Abstract

The invention belongs to the technical field of maintenance equipment of pneumatic ash conveying systems, and discloses a pneumatic ash conveying pipeline cleaning device, which is provided with a self-adaptive supporting component, drives a supporting wheel to radially move along a supporting seat through the telescopic action of an elastic telescopic rod, enables the supporting wheel to be always in rolling fit with the inner wall of a pipeline, can self-adapt to ash conveying pipelines with various pipe diameters, does not need to change a main body of the device, effectively reduces the equipment investment cost, improves the universality of the device, the obstinate plug in the pipeline is pre-broken by the clear stifled subassembly, but simultaneously through adjustment mechanism accurate regulation scraper subassembly and pipeline inner wall's laminating degree, the ash dirt clearance demand of the different thickness of adaptation, further promote clear stifled effect, a plurality of elasticity telescopic links of self-adaptation supporting component are along the radial evenly distributed of supporting seat, form the multiple spot and support, effectively prevent the device radially rocks at advancing the in-process, guarantee scraper subassembly atress even, both promote the clearance effect, reduce the device wearing and tearing again, increase of service life.

Inventors

  • ZHANG JUNPENG
  • YANG YUFENG
  • ZHANG JIE
  • ZHU YUMING
  • CHEN JICAI
  • LI XIAOLU
  • WANG WENHUI

Assignees

  • 大唐国际发电股份有限公司张家口发电分公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (10)

  1. 1. The pneumatic ash conveying pipeline cleaning device comprises an ash conveying pipeline body and is characterized by comprising a driving assembly (1), a self-adaptive supporting assembly (2) and an ash conveying pipeline cleaning assembly (3), wherein the driving assembly (1), the self-adaptive supporting assembly (2) and the ash conveying pipeline cleaning assembly (3) are sequentially connected to form an integral structure extending along the axis direction of a pipeline, the driving assembly (1) is used for driving the whole device to move along the inner wall of the pipeline, the self-adaptive supporting assembly (2) is used for self-adapting ash conveying pipeline ash cleaning operation with various pipe diameters, and the ash conveying pipeline inner wall is scraped by the ash conveying pipeline cleaning assembly (3).
  2. 2. The pneumatic ash conveying pipeline cleaning device according to claim 1, wherein the driving assembly (1) comprises a driving motor (11), a reduction gearbox (12) and a driving wheel group (13), the output end of the driving motor (11) is connected with the reduction gearbox (12), the output end of the reduction gearbox (12) is in transmission connection with the driving wheel group (13), the driving wheel group (13) is symmetrically arranged on two sides of the driving assembly (1), the driving wheel group (13) comprises a driving shaft (131) and a driving wheel (132), the driving shaft (131) is in key connection with the output end of the reduction gearbox (12), the driving wheel (132) is sleeved on the driving shaft (131), and anti-slip lines are arranged on the outer surface of the driving wheel (132) and used for improving friction force between the driving wheel and the inner wall of a pipeline.
  3. 3. A pneumatic ash conveying pipeline cleaning device according to claim 1 is characterized in that the self-adaptive supporting component (2) comprises a supporting seat (21), elastic telescopic rods (22) and supporting wheels (23), the supporting seat (21) is fixed at the front end of the driving component (1), the elastic telescopic rods (22) are uniformly distributed along the radial direction of the supporting seat (21), one ends of the elastic telescopic rods (22) are fixedly connected with the supporting seat (21), the other ends of the elastic telescopic rods (22) are rotatably connected with the supporting wheels (23), the supporting wheels (23) are in rolling fit with the inner wall of a pipeline, and the supporting wheels (23) are used for adapting to pipelines with different pipe diameters through the expansion and the contraction of the elastic telescopic rods (22).
  4. 4. A pneumatic ash conveying pipeline cleaning device according to claim 1 is characterized in that the blocking cleaning component (3) comprises a mounting seat (31), an adjusting mechanism (32) and a scraper component (33), the mounting seat (31) is arranged at the front end of the self-adaptive supporting component (2), the adjusting mechanism (32) is arranged on the mounting seat (31), the scraper component (33) is connected with the adjusting mechanism (32), the fitting degree of the scraper component (33) and the inner wall of a pipeline is adjusted through the adjusting mechanism (32), the scraper component (33) comprises a scraper seat (331) and a plurality of scraper bodies (332), the cutting edge of the scraper body (332) is of an arc-shaped structure, the surface of the cutting edge is provided with a wear-resistant coating, and the scraper body (332) is arranged on the scraper seat (331).
  5. 5. The pneumatic ash conveying pipeline cleaning device according to claim 1, wherein the ash conveying pipeline cleaning device is characterized in that the ash conveying pipeline cleaning device further comprises a speed reducing motor (35), a clamping ring (36) and a clamping groove (37), the speed reducing motor (35) is fixed on one side, close to the ash conveying pipeline cleaning device, of the supporting seat (21), the speed reducing motor (35) is connected with the mounting seat (31), the clamping ring (36) is mounted on one side, close to the supporting seat (21), of the mounting seat (31), and the clamping groove (37) matched with the clamping ring (36) is formed in the surface of the supporting seat (21).
  6. 6. A pneumatic ash conveying pipeline cleaning device according to claim 3 is characterized in that the elastic telescopic rod (22) comprises a fixed sleeve (221), a movable rod (222) and a compression spring (223), the fixed sleeve (221) is fixedly connected with the supporting seat (21), the movable rod (222) is slidably inserted into the fixed sleeve (221), the compression spring (223) is arranged between the fixed sleeve (221) and the movable rod (222), one end of the compression spring (223) is abutted to the bottom of the fixed sleeve (221), the other end of the compression spring (223) is abutted to one end of the movable rod (222), and the other end of the movable rod (222) is rotatably connected with the supporting wheel (23).
  7. 7. A pneumatic ash conveying pipeline cleaning device according to claim 4 is characterized in that the adjusting mechanism (32) comprises an adjusting screw (321), an adjusting nut (322) and a connecting seat (323), the adjusting screw (321) is arranged along the radial direction of the mounting seat (31), the adjusting screw (321) is in threaded connection with the mounting seat (31), the adjusting nut (322) is sleeved on the adjusting screw (321) and used for locking the position of the adjusting screw (321), the connecting seat (323) is rotatably connected with one end of the adjusting screw (321), and the connecting seat (323) is fixedly connected with the scraper seat (331).
  8. 8. A pneumatic ash conveying pipeline cleaning device according to claim 4 is characterized in that the scraper body (332) is detachably connected with the scraper seat (331), a mounting groove is formed in the scraper seat (331), and the scraper body (332) is fixed in the mounting groove through bolts, so that replacement and maintenance of the scraper body (332) are facilitated.
  9. 9. A pneumatic ash conveying pipeline cleaning device according to claim 2, wherein the driving assembly (1) further comprises a protective shell (14), the driving motor (11) and the reduction gearbox (12) are both arranged in the protective shell (14), and a corrosion-resistant coating is arranged on the outer surface of the protective shell (14).
  10. 10. A pneumatic ash conveying pipeline cleaning device according to claim 1, wherein the blockage cleaning assembly (3) further comprises crushing teeth (34), the crushing teeth (34) are arranged at the front end of the scraper body (332), and the crushing teeth (34) are in a conical structure and are used for pre-crushing stubborn blockages.

Description

Pneumatic ash conveying pipeline cleaning device Technical Field The invention belongs to the technical field of maintenance equipment of pneumatic ash conveying systems, and particularly relates to a pneumatic ash conveying pipeline cleaning device. Background The pneumatic ash conveying technology is widely applied to industries such as electric power, metallurgy, chemical industry and the like, and powder materials such as fly ash, mineral powder and the like are conveyed to a designated position along an ash conveying pipeline by taking compressed air as a conveying medium. In the long-term use process, powder materials are easy to adhere to and accumulate on the inner wall of an ash conveying pipeline, if the powder materials are not cleaned timely, the diameter of the pipeline is reduced, the conveying resistance is increased, the ash conveying efficiency is reduced, the energy consumption is increased, the pipeline is blocked when the powder materials are severe, the normal operation of the whole ash conveying system is influenced, and even equipment faults are caused. The existing pneumatic ash conveying pipeline cleaning device has the defects that firstly, the suitability is poor, a plurality of cleaning devices can only be suitable for pipelines with single pipe diameter, for ash conveying pipelines with different pipe diameters, cleaning devices with different specifications are required to be replaced, the universality is low, the equipment investment cost is increased, secondly, the cleaning effect is poor, most of scrapers of the traditional cleaning devices are of fixed structures and are difficult to be tightly attached to the inner wall of the pipeline, the cleaning of intractable ash and dirt is not thorough, thirdly, the advancing stability is insufficient, the device is easy to shake along the radial direction of the pipeline in the cleaning process, the stress of the scrapers is uneven, the cleaning effect is affected, the abrasion of the device is further increased, the service life is shortened, fourthly, the maintenance is inconvenient, the scrapers of the part of the cleaning devices are of an integrated structure, the scrapers need to be replaced integrally after being damaged, and the maintenance cost is increased. Therefore, a pneumatic ash conveying pipeline cleaning device is provided for solving the problems. Disclosure of Invention The invention aims to overcome the defects of poor suitability, poor blockage clearing effect, insufficient running stability and inconvenient maintenance of the traditional pneumatic ash conveying pipeline cleaning device, and provides the pneumatic ash conveying pipeline cleaning device which can realize the self-adaptive cleaning of pipelines with various pipe diameters, improve the blockage clearing thoroughness and the running stability, reduce the maintenance cost and ensure the efficient running of an ash conveying system. The pneumatic ash conveying pipeline cleaning device comprises a driving assembly, a self-adaptive supporting assembly and a blockage removing assembly, wherein the driving assembly, the self-adaptive supporting assembly and the blockage removing assembly are sequentially connected to form an integral structure extending along the axis direction of a pipeline, the driving assembly is used for driving the whole device to move along the inner wall of the pipeline, the self-adaptive supporting assembly is used for self-adapting ash conveying pipelines with various pipe diameters to clean ash, and the blockage removing assembly is used for scraping ash on the inner wall of the ash conveying pipeline. Preferably, the drive assembly includes driving motor, reducing gear box and drive wheelset, driving motor's output is connected with the reducing gear box, the output and the drive wheelset transmission of reducing gear box are connected, drive wheelset symmetry sets up in the both sides of drive assembly, the drive wheelset includes drive shaft and drive wheel, the drive shaft is connected with the output key of reducing gear box, the drive wheel cover is established in the drive shaft, just the surface of drive wheel is equipped with anti-skidding line and is used for promoting the frictional force of drive wheel and pipeline inner wall. Preferably, the self-adaptation supporting component comprises a supporting seat, an elastic telescopic rod and a supporting wheel, wherein the supporting seat is fixed at the front end of the driving component, the elastic telescopic rod is uniformly distributed along the radial direction of the supporting seat, one end of the elastic telescopic rod is fixedly connected with the supporting seat, the other end of the elastic telescopic rod is rotatably connected with the supporting wheel, the supporting wheel is in rolling fit with the inner wall of a pipeline, and the supporting wheel is used for self-adapting to pipelines with different pipe diameters through the expansion of the elastic tel