shaft design calculation in mining

2023-01-13T14:01:11+00:00

  • DESIGN OF MINE SHAFT ELEVATOR

    When it comes to design of a mine shaft, there are two options: circular shafts and horizontal shafts (Figure 1, Figure 2) Circular shaft is the most commonly used one If the shaft should be deep and shaft diameter is supposed to be more than 45 meters, circular shafts are the best choice Because of their circular shape, they are easier by the usage Rectangular shafts, which use timber Chapter 9 is mainly devoted to the design of vertical shafts; in particular, circular concretelined shafts because they are most commonly considered for new mines For a production shaft, design starts with determining the cross section or plan view of the shaft The production shaft is designed to the minimum dimensions required to contain and guide the shaft conveyances, as well as provide mining engineering: Shaft DesignFree Online Shaft Calculator Sam Carigliano T15:48:45+10:00 × Try SkyCiv Mobile! Free to use, premium features for SkyCiv users Free Online Shaft Calculator For Mechanical Engineers Need More Functionality? Upgrade to a paid plan to unlock full features Full Shaft Software Allowing you to solve more complex shafts with more loads, bearings and stress concentrations Single Free Online Shaft Calculator SkyCiv

  • Pillar design QueensMineDesignWiki

    The common design methods include tributary area, empirical calculations and modelling Shaft Pillars Shaft pillars are the most important excavation in an underground mine and must be protected above everything else Failure criteria includes strain limits for deformation, stress limits for failure of rock in shaft sidewalls, and for high speed hoisting For strain limits of deformation The shaft is accessed via the Craig Mine shaft and the shaft collar is located approximately 1230m below surface It is a 72m diameter concrete lined shaft that will provide access and ventilation to the orebody located approximately 2500m below surface The site visit will include a safety orientation, an overview of the shaft design and sinking methodology and a trip underground to see the Shaft 2019 Shaft design and construction Shaft Design Objectives • Compute forces acting on shafts from gears, pulleys, and sprockets • Find bending moments from gears, pulleys, or sprockets that are transmitting loads to or from other devices • Determine torque in shafts from gears, pulleys, sprockets, clutches, and couplings • Compare combined stresses to suitable allowable stresses, including any required stress Md17 Shaft Design

  • Shaft sinking Wikipedia

    Shaft mining or shaft sinking is excavating a vertical or nearvertical tunnel from the top down, where there is initially no access to the bottom Shallow shafts, typically sunk for civil engineering projects differ greatly in execution method from deep shafts, typically sunk for mining projectsWhen the top of the excavation is the ground surface, it is referred to as a shaft; when the top Abstract: In the design of deep shafts inserted into fractured rock masses it is important to know the behavior and distribution of the vertical loads between the concrete structure and the rock mass With the purpose to know this load distribution, this work develops an analytic model for the load distribution between the concrete and the rock mass, and the respective study of this analytic Structural Design of Reinforced Concrete Deep Shafts Shaft design based on strengthShaft design based on strength ASME design code (ductile material): 2 ( ) () 2 2 34 16 1 1 8 ao allowable m t Fd c kM kT dc α τ π ⎛⎞+ =+ +⎜⎟ ⎜⎟ ⎝⎠ where k m and k t are bending and torsion factors o −, are bending and torsion factors accounts for shock and fatigue The values of th f t i i ASME d i d fthese factors are given in ASME design ME 343: Mechanical Design3

  • Md17 Shaft Design

    17 Shaft Design Objectives • Compute forces acting on shafts from gears, pulleys, and sprockets • Find bending moments from gears, pulleys, or sprockets that are transmitting loads to or from other devices • Determine torque in shafts from gears, pulleys, sprockets, clutches, and couplings • Compare combined stresses to suitable allowable stresses, including any required stress Besides, we are specifically competent in design and calculation of mine shaft parameters LLC "MCCShaftproject" is an exclusive representative of Sepro Mineral Systems in Russian Federation and the CIS region We specialize in technological solutions for the enrichment of gold, silver, platinum group metals, tin, copper, zinc and other ores We offer technological equipment for the processes ShaftprojectShaft mining or shaft sinking is excavating a vertical or nearvertical tunnel from the top down, where there is initially no access to the bottom Shallow shafts, typically sunk for civil engineering projects differ greatly in execution method from deep shafts, typically sunk for mining projectsWhen the top of the excavation is the ground surface, it is referred to as a shaft; when the top Shaft sinking Wikipedia

  • A Lining Design Method Consistent With NATM for Deep Shafts

      Numerical calculation is an effective means to study the basic mechanism of tunnel excavation[4]Based on twodimensional modeling approaches in the past, such as NATM and other derivatives, a threedimensional model was studied to" Full Article Download: (1619 kb) Additional chapters/articles from the CIM book Proceedings of 4th International Shaft Design and Construction conference Design Shaft Stress Calculations Shaft 1 (Diameter=3/8”) Material: 1045 Steel, Yield Strength (S y)= 530 MPa, Ultimate Strength= 625MPa Max Stress o The shaft is keyed for a 3/32” key, thus a close approximation for the actual yield strength is ¾ the materials yield strength (Keyed Yield Strength=398 MPa) o Loading is comprised of three components MomentBased on cantilevered distance from Shaft Stress Calculations EDGEShaft design includes the determination of shaft diameter having the strength and rigidity to transmit motor or engine power under various operating conditions Shafts are usually round and may be solid or hollow Shaft torsional shear stress: Ss (lbf/in 2) = T*R / J Polar moment of area: J = π*D 4 / 32 for solid shafts J (in 4) = π*(D 4 d 4) / 32 for hollow shafts Shaft bending stress ASME Shaft Design Allowable Stress and Diameter equations

  • How to Design a Drive Shaft Drive Shaft Design for a

    Shaft is a basic mechanical component The concept of drive shaft design formula is explained in this article with an example shaft design problemYou can see a shaft in almost every machine, which has rotating parts Typically a shaft has circular cross section However, shaft with other cross sections find special application We will discuss the design concept of a drive shaft subjected to   Shaft design basics Shaft size is dictated by torque, not horsepower But changes in horsepower and speed (rpm) affect torque, as the following equation shows: Torque (lbft) = hp x 5252/rpm Accordingly, an increase in horsepower would require more torque, as would a decrease in rpm For example, a 100hp (75kW) motor designed for 900 rpm would require twice as much torque How proper shaft sizes are determined MRO MagazineMRO Shaft design based on strengthShaft design based on strength ASME design code (ductile material): 2 ( ) () 2 2 34 16 1 1 8 ao allowable m t Fd c kM kT dc α τ π ⎛⎞+ =+ +⎜⎟ ⎜⎟ ⎝⎠ where k m and k t are bending and torsion factors o −, are bending and torsion factors accounts for shock and fatigue The values of th f t i i ASME d i d fthese factors are given in ASME design ME 343: Mechanical Design3

  • CHAPTER 21 Mechanical Design of Mixing Equipment

    frequency of a mixer shaft, appropriate mechanical design must be determined by the equipment designer Whatever the reason, knowledge of the mechanical requirements for a mixer will help guide the engineer toward a design that will meet both process and mechanical criteria The purpose of this chapter is to provide practical information about the mechanical design of mixing equipment Shaft design based on strengthShaft design based on strength ASME design code (ductile material): 2 ( ) () 2 2 34 16 1 1 8 ao allowable m t Fd c kM kT dc α τ π ⎛⎞+ =+ +⎜⎟ ⎜⎟ ⎝⎠ where k m and k t are bending and torsion factors o −, are bending and torsion factors accounts for shock and fatigue The values of th f t i i ASME d i d fthese factors are given in ASME design ME 343: Mechanical Design3Products > Shaftdesign, deformation, strength, safety The calculation is designed for geometrical designs and complex examinations of shafts The programme solves the following tasks: Simple definition of installed shafts, including hollow ones Options of definitions of neckingdown, recesses, grooves and calculation of the relevant coefficients of stress concentration Simple definition of Shaft design, deformation, strength test

  • ASME Shaft Design Allowable Stress and Diameter equations

    Shaft design includes the determination of shaft diameter having the strength and rigidity to transmit motor or engine power under various operating conditions Shafts are usually round and may be solid or hollow Shaft torsional shear stress: Ss (lbf/in 2) = T*R / J Polar moment of area: J = π*D 4 / 32 for solid shafts J (in 4) = π*(D 4 d 4) / 32 for hollow shafts Shaft bending stress A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS IN DIFFERENT ROCK MASSES Güler, Erdoan MSc, Department of Mining Engineering Supervisor: Asst Prof Dr Hasan Öztürk January 2013, 72 pages The objective of this thesis is to predict lining thickness inside circular mine shafts A numerical study with different rock mass strengths and different insitu nonhydrostatic A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS In this paper, the methodology of the shaft lining and shaft station lining design for a deep shaft is presented based on the Victoria Mine located in Canada Taking into consideration the geological structure as well as the results of the laboratory tests, the properties of the rock mass were derived Next, the numerical calculation was performed based on the elastoplastic model of the rock [PDF] Design of the shaft lining and shaft stations for

  • Raise Design and Operations Blasting

    The calculation of void space can be expressed by the following equation; Shaft sinking requires the use of a beginning sinking cut in order to start the shafting process In the past, this was continued until nonweathered competent ground in reached With the use of bulk emulsions contained in a carrier similar to a large ANFO pot, packaged products have been mostly superceded The Shaft is a basic mechanical component The concept of drive shaft design formula is explained in this article with an example shaft design problemYou can see a shaft in almost every machine, which has rotating parts Typically a shaft has circular cross section However, shaft with other cross sections find special application We will discuss the design concept of a drive shaft subjected to How to Design a Drive Shaft Drive Shaft Design for a Shaft Design Material , Types , How to Design Shaft Introduction to the Shaft:• A shaft is a rotating member, usually of circular cross section, used to transmit power or motion • It provides the axis of rotation, or oscillation, of elements such as gears, pulleys, flywheels, cranks, sprockets, and the like and controls the geometry of their motion • Carbon steels of grade 40C8 Shaft Design Material , Types , How to Design Shaft

  • Shaft sinking 1 SlideShare

      The design of mine shaft is an iterative process, which requires several variables and options to be considered in order to arrive at an economic decision The economic decision is arrived at by comparing the net present values (NPV) and internal rate of return (IRR) from the different options considered in the optimization process The option with the most attractive financial option is then frequency of a mixer shaft, appropriate mechanical design must be determined by the equipment designer Whatever the reason, knowledge of the mechanical requirements for a mixer will help guide the engineer toward a design that will meet both process and mechanical criteria The purpose of this chapter is to provide practical information about the mechanical design of mixing equipment CHAPTER 21 Mechanical Design of Mixing Equipment  A user friendly objectoriented software package is developed in Matlab R2010b to overcome the tiresome shaft lining thickness calculations The package allows users to enter and change inputs any time at input window and see the design of the liner along the shaft depth graphically and numerically based on Eq The flow chart of the program is presented in Fig 12 The program A methodology for lining design of circular mine shafts in

  • A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS

    A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS IN DIFFERENT ROCK MASSES Güler, Erdoan MSc, Department of Mining Engineering Supervisor: Asst Prof Dr Hasan Öztürk January 2013, 72 pages The objective of this thesis is to predict lining thickness inside circular mine shafts A numerical study with different rock mass strengths and different insitu nonhydrostatic Shaft Stress Calculations Shaft 1 (Diameter=3/8”) Material: 1045 Steel, Yield Strength (S y)= 530 MPa, Ultimate Strength= 625MPa Max Stress o The shaft is keyed for a 3/32” key, thus a close approximation for the actual yield strength is ¾ the materials yield strength (Keyed Yield Strength=398 MPa) o Loading is comprised of three components MomentBased on cantilevered distance from Shaft Stress Calculations EDGEDesign and Analysis of Belt Conveyor Roller Shaft Harshavardhan A Kadam1, Nilesh S Hyalij2 # equipment in coal mine, driving drum and belt is its key part Friction principle is used to initiate mechanical drive for belt conveyor So friction is the driving force In order to raise transportation efficiency of belt conveyor, driving force of drum must be increased Energy saving Design and Analysis of Belt Conveyor Roller Shaft

  • [PDF] Design of the shaft lining and shaft stations for

    In this paper, the methodology of the shaft lining and shaft station lining design for a deep shaft is presented based on the Victoria Mine located in Canada Taking into consideration the geological structure as well as the results of the laboratory tests, the properties of the rock mass were derived Next, the numerical calculation was performed based on the elastoplastic model of the rock Shaft design includes the determination of shaft diameter having the strength and rigidity to transmit motor or engine power under various operating conditions Shafts are usually round and may be solid or hollow Shaft torsional shear stress: Ss (lbf/in 2) = T*R / J Polar moment of area: J = π*D 4 / 32 for solid shafts J (in 4) = π*(D 4 d 4) / 32 for hollow shafts Shaft bending stress ASME Shaft Design Allowable Stress and Diameter equations Shaft is a basic mechanical component The concept of drive shaft design formula is explained in this article with an example shaft design problemYou can see a shaft in almost every machine, which has rotating parts Typically a shaft has circular cross section However, shaft with other cross sections find special application We will discuss the design concept of a drive shaft subjected to How to Design a Drive Shaft Drive Shaft Design for a

  • How proper shaft sizes are determined MRO MagazineMRO

      Shaft design basics Shaft size is dictated by torque, not horsepower But changes in horsepower and speed (rpm) affect torque, as the following equation shows: Torque (lbft) = hp x 5252/rpm Accordingly, an increase in horsepower would require more torque, as would a decrease in rpm For example, a 100hp (75kW) motor designed for 900 rpm would require twice as much torque   The design of mine shaft is an iterative process, which requires several variables and options to be considered in order to arrive at an economic decision The economic decision is arrived at by comparing the net present values (NPV) and internal rate of return (IRR) from the different options considered in the optimization process The option with the most attractive financial option is then Shaft sinking 1 SlideShareShaft design based on strengthShaft design based on strength ASME design code (ductile material): 2 ( ) () 2 2 34 16 1 1 8 ao allowable m t Fd c kM kT dc α τ π ⎛⎞+ =+ +⎜⎟ ⎜⎟ ⎝⎠ where k m and k t are bending and torsion factors o −, are bending and torsion factors accounts for shock and fatigue The values of th f t i i ASME d i d fthese factors are given in ASME design ME 343: Mechanical Design3

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