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E-grāmata: Retractable Guidance System for Mine Shaft Hoists [Taylor & Francis e-book]

(AGH University of Science and Technology, Kraków, Poland)
  • Formāts: 120 pages, 60 Tables, black and white; 78 Line drawings, black and white; 4 Halftones, black and white; 82 Illustrations, black and white
  • Izdošanas datums: 29-Nov-2021
  • Izdevniecība: CRC Press
  • ISBN-13: 9781003226758
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  • Taylor & Francis e-book
  • Cena: 120,07 €*
  • * this price gives unlimited concurrent access for unlimited time
  • Standarta cena: 171,52 €
  • Ietaupiet 30%
Retractable Guidance System for Mine Shaft HoistsPalielināt
  • Formāts: 120 pages, 60 Tables, black and white; 78 Line drawings, black and white; 4 Halftones, black and white; 82 Illustrations, black and white
  • Izdošanas datums: 29-Nov-2021
  • Izdevniecība: CRC Press
  • ISBN-13: 9781003226758
Citas grāmatas par šo tēmu:
Taylor & Francis e-booksMore info about Taylor & Francis e-books
Rokasgrāmatas mājas lapa: https://www.taylorfrancis.com/books/9781003226758
"Rope guidance of conveyances is commonly used in shafts of underground mines in numerous countries on almost every continent. This safe and economical way of guiding skips and cages does have one disadvantage however, which is especially troublesome in the conditions present in the Polish mining industry. Rope guided conveyances require additional support at mine levels, while shafts of Polish coal mines usually operate on many levels. Additional stiff guidance at mine levels used as a support negatively affects the effectiveness of rope guided hoisting systems. The retractable guidance system was originally introduced at the 960 m level in the Leon IV shaft of the Rydu±towy Coal mine in Rydu±towy (currently ROW mine, Rydu±towy department), Silesian voivodeship, Poland. This construction, consisting of moveable elements, similar to the typical stiff guidance used at mine levels, serves as a support for the conveyance whenever necessary. When it is retracted, it allows the cage to travel at full speed through the level, increasing the degree of effectiveness of the hoisting system of the Leon IV shaft. The retractable guidance system, the solution presented in this book, is a pioneering approach in the Polish mining industry. It has allowed improvement of the level of effectiveness of the Leon IV shaft of the Rydu±towy Colliery. It is an innovative opportunity for rope guidance systems worldwide, as it solves their biggest problem in multi-level shafts"--

This book provides an effective solution to rope guided conveyances through a retractable guidance system, which is a pioneering approach in the Polish mining industry. It has improved the effectiveness of the Leon IV shaft of the Rydultowy Colliery. It can be used to solve problems in multi-level shafts of rope guidance systems worldwide.
Preface vii
About the author ix
Acknowledgments xi
1 State of the art
1(36)
1.1 Leon IV shaft
1(14)
1.2 Rope guidance of conveyances
15(19)
References
34(3)
2 Description of the retractable guidance system
37(28)
2.1 Characteristics of the retractable guidance system
37(13)
2.1.1 Bottom transom stabilizing
47(1)
2.1.2 Top transom stabilizing
48(1)
2.1.3 Retracting of the guides
48(2)
2.2 Calculations
50(12)
2.2.1 Bottom section calculations
51(1)
2.2.2 Top section calculations
52(10)
References
62(3)
3 Measurements
65(54)
3.1 Measurements of peak forces acting on stiff guides from the cage
65(15)
3.1.1 Bottom transom frontal forces
70(1)
3.1.2 Top transom frontal forces
70(4)
3.1.3 Bottom transom side forces
74(3)
3.1.4 Top transom side forces
77(2)
3.1.5 Conclusions
79(1)
3.2 Measurements of peak forces acting on the retractable guides
80(30)
3.2.1 Measurement schedule
80(1)
3.2.2 "Bottom transom" stage
81(4)
3.2.3 "Top transom" stage
85(4)
3.2.4 Diagrams and markings of measured forces
89(1)
3.2.5 Bottom transom frontal forces
89(2)
3.2.6 Top transom frontal forces
91(2)
3.2.7 Bottom transom side forces
93(3)
3.2.8 Top transom side forces
96(2)
3.2.9 Physical verification of measured forces
98(1)
3.2.10 Stress in the bridle hangers of the man-material cage caused by the bottom section of the retractable guidance system
98(3)
3.2.11 Stress in the bridle hangers of the man-material cage caused by the top section of the retractable guidance system
101(1)
3.2.12 Physical verification of measured stress
102(2)
3.2.13 Comparison of forces measured for stiff guides and for the retractable guidance system on the level 960m in the Leon IV shaft
104(1)
3.2.14 Comparison of forces measured for the retractable guidance system and existing legislation in terms of safety and Polish Standard PN-G-46227. Mine shafts: Chairing: Requirements
105(1)
3.2.15 Evaluation of measured forces acting on the retractable guidance system
106(1)
3.2.16 Evaluation of stress in the bridle hangers of the man-material cage caused by the retractable guides
107(2)
3.2.17 Final conclusions of the retractable guidance system measurements
109(1)
3.3 Mechanical analysis of construction of the retractable guidance system
110(8)
3.3.1 Diagrams and calculations of forces acting on the bottom section of the retractable guidance system during its movement from resting to working position
111(1)
3.3.2 Diagrams and calculations of forces acting on the top section of the retractable guidance system during its movement from resting to working position
112(2)
3.3.3 Diagrams and calculations of forces acting on the bottom section of the retractable guidance system during its operation
114(2)
3.3.4 Diagrams and calculations of forces acting on the bottom section of the retractable guidance system during its operation
116(2)
References
118(1)
4 Summary
119
Pawel Kamiski has been a lecturer at AGH University of Science and Technology, Kraków, since 2020. He has been Head of the Design Department of PBSz S.A. (part of JSW Group) since 2015. Over the years he has held numerous internships in different mining companies in Poland, Germany, China, Russia, and other countries.
Permanent link: https://www.kriso.lv/db/9781003226758_pe.html
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