1 / 46

THE WEAR-RESISTANT PIPELINES with ALUMINOTHERMIC CORUNDUM COATING

THE WEAR-RESISTANT PIPELINES with ALUMINOTHERMIC CORUNDUM COATING. Energohimkomlect ltd. Chelyabinsk, Russia. Examples of the us age of hydraulic transport of materials in various branches of industry :.

najila
Download Presentation

THE WEAR-RESISTANT PIPELINES with ALUMINOTHERMIC CORUNDUM COATING

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. THE WEAR-RESISTANT PIPELINES with ALUMINOTHERMIC CORUNDUM COATING Energohimkomlect ltd. Chelyabinsk, Russia

  2. Examplesoftheusageof hydraulic transportof materialsinvariousbranchesofindustry:

  3. Examplesoftheusageofpneumotransport of materialsinvariousbranchesofindustry:

  4. Hydraulic ash and slag removal systemwith dual disposal of ash and slag

  5. Hydraulic ash and slag removal systemwith separated disposal of ash and slag

  6. Pneumohydraulic ash and slag removal system

  7. Themainfactorsaffectingtheabrasiveandcorrosivewearofequipmentandpipelines:Themainfactorsaffectingtheabrasiveandcorrosivewearofequipmentandpipelines: • Abrasive properties of conveyed particles, hardness, sharpness and size. • Corrosion properties of the transported material. • Velocity of the moving of pneumo- and hydromixtures. • The materials of which equipment and pipelines are made. • The quality of the installation. • The position of the pipeline (the slope). • The presence of bends of the pipeline and bending radius.

  8. Measurestoreducetheabrasionofpipelines: • Periodicrotationoftherectilinearpipesaroundtheiraxisat 90 °. • Transportationofhydro- ordust-airflowwithvelocitiesandconcentrationsofsolidmaterial, notexceedingtheoptimum ones. • Shapeoptimizationofcurvedsectionsofpipelines (reducing ofbendradius). • Makingof the sectionsofaerodynamicstabilizationofflowsattheentrancetotheshapedsectionsofdustfluesandtheoutputofthese, takingintoaccountthezonesofmaximumwear. • Usingofwearresistantelementsofequipmentandpipelines.

  9. Wear-resistantelementsofpipeline Increasingofwear-resistance

  10. Steel pipe with basalt insert(EUTIT s.r.o, Czech)

  11. AlUMINOTHERMIC COATINGS

  12. Reduction of iron oxides by aluminum (aluminothermy): 3Fe3O4 + 8Al → 4Al2O3 + 9Fe (1) -ΔH2980 = 839 kJ/moleAl2O3, tad.comb. = 3194 °С Fe2O3 + 2Al → Al2O3 + 2Fe (2) -ΔH2980 = 856 kJ/moleAl2O3, tad.comb. = 3428 °С

  13. The formation of aluminothermic coatingon a vertically mounting pipe by reactionary fusing method 1 – Igniter 2 – Thermite mixture 3 – Molten slag (Al2O3) 4 – Molten reduced iron 5 – Surfaced ceramic coat (Al2O3)

  14. The formation of aluminothermic coatingon a bended pipe (elbow) by reactionary fusing method 1 – Igniter 2 – Thermite mixture 3 – Molten slag (Al2O3) 4 – Molten reduced iron 5 – Surfaced ceramic coat (Al2O3)

  15. PipesØ273х10 mm,length 2 m

  16. Three way pipe Ø108 mm

  17. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  18. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  19. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  20. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  21. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  22. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  23. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  24. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  25. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  26. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  27. Test of thermite mixture in the pipe Ø108 mm, length 600 mm

  28. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  29. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  30. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  31. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  32. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  33. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  34. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  35. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  36. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  37. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  38. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  39. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  40. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  41. The formation of aluminothermic coatingon a pipe Ø273х10 mm, length 2 m

  42. The formation of aluminothermic coatingby centrifugal SHS-casting method

  43. Thestructureof aluminothermic coatingproducedbycentrifugalSHS-castingmethod Thecross-sectionofsteelpipewith aluminothermic coating a – thepipewall; b – anintermediatemetallayer; c – ceramiclayer. Themicrostructureoftheceramiclayer

  44. The comparative properties of pipelines materials

  45. Primarycharacteristicsofthe aluminothermic coating

  46. Implemented products with aluminothermic coatings

More Related