Numerical Models of Rubber-Textile Composites of Conveyor Belts

2014 ◽  
Vol 683 ◽  
pp. 159-164 ◽  
Author(s):  
Tomáš Bouda ◽  
Peter Bocko ◽  
Tomáš Hájek
Keyword(s):  
Numerical Models ◽  
Large Strain ◽  
Conveyor Belt ◽  
Textile Composites ◽  
Point Of View ◽  
Belt Conveyor ◽  
Textile Composite ◽  
Conveyor System ◽  
Material Parameters ◽  
Conveyor Belts

Conveyor belt is the carrying medium of a belt conveyor system and it’s widely used by various industries. From a material modeling point of view it is a long fiber rubber-textile composite, where textile fibers bear the load. This contribution presents a procedure for material parameters calibration of rubber-textile composite, where large-strain phenomena need to be expected.

Rotating Resistance of Belt Conveyor Idler Rolls

2015 ◽  
Vol 138 (4) ◽  
Author(s):  
Craig A. Wheeler
Keyword(s):  
Conveyor Belt ◽  
Operating Conditions ◽  
Viscous Drag ◽  
Resistance Force ◽  
Belt Conveyor ◽  
Conveyor System ◽  
Theoretical Methods ◽  
Primary Function ◽  
Lip Seals ◽  
Rolling Elements

The primary function of idler rolls in a belt conveyor system is to support the conveyor belt along its length. Predicting the cumulative resistance of idler rolls is vitally important in calculating the belt tension and therefore power requirements of a system, particularly on long overland conveyors where there are typically more than one thousand idler rolls per kilometer of belt. The rotating resistance occurs due to the friction of the rolling elements in the bearings, the viscous drag of the lubricant, and the friction of the contact lip seals. This paper provides theoretical methods to calculate each component of the rotating resistance and describes an apparatus designed to measure this resistance force under simulated operating conditions.

Mathematical Model for Determining the Lifetime of Conveyor Belts Depending on some Selected Parameters

2014 ◽  
Vol 683 ◽  
pp. 147-152
Author(s):  
Miriam Andrejiová ◽  
Anna Grinčová ◽  
Anna Pavlisková
Keyword(s):  
Mathematical Model ◽  
Statistical Methods ◽  
Paint Layer ◽  
Conveyor Belt ◽  
Belt Conveyor ◽  
Layer Width ◽  
Conveyor Belts ◽  
Belt Conveyors ◽  
Transported Material ◽  
Optimal Construction

In the last years, belt conveyors belong to the most frequently used means of transport in various industries. The most important component of the belt conveyor is the conveyor belt. Therefore, it is necessary to pay more attention also to optimal lifetime of conveyor belts. Conveyor belt lifetime is a very complicated issue. It is affected by plenty of factors, including above all the quality structure of the belt conveyor, optimal construction, production, and properties of the conveyor belt as such, adequate solution of conveyance route shifting, reasonable maintenance, and quality repairs of conveyor belts. The paper deals with the exploring the lifetime of conveyor belts depending from on some selected parameters obtained from the operating records of practice (thickness of paint layer, width and length of the belt, conveyor speed and quantity of transported material) with using appropriate mathematical - statistical methods.

Parametric Finite Element Analysis on Key Parts of the Conveyor

2011 ◽  
Vol 101-102 ◽  
pp. 755-758 ◽  
Author(s):  
Chun Sheng Yang
Keyword(s):  
Mechanical Characteristics ◽  
Bulk Material ◽  
Viscoelastic Model ◽  
Conveyor Belt ◽  
Belt Conveyor ◽  
Element Analysis ◽  
Conveyor System ◽  
Belt Conveyors ◽  
Parametric Finite Element Analysis ◽  
Research Situation

Belt conveyors are the major equipments for bulk material transportation.This paper analyses the static and dynamic behaviours of the belt, and establishes the dynamic elastic modulus. By analyzing the characteristics of the Kelvin and Maxwell viscoelastic model, the former is selected as the conveyor belt model as it can more realistically reflect the mechanical characteristics of the conveyor system. This paper introduces the development of the belt conveyor, and analyzes the current research situation at home and abroad.

scholarly journals A Letter on Belt Conveyor System as a Mode of Transportation in Industry

2020 ◽  
Vol 3 (12) ◽  
pp. 75-79
Author(s):  
Monideepa Pati ◽  
Ujjayan Majumdar
Keyword(s):  
Power Plants ◽  
Material Handling ◽  
Conveyor Belt ◽  
Open Pit ◽  
Maintenance Cost ◽  
Open Pit Mines ◽  
Conveyor System ◽  
Design Values ◽  
Conveyor Belts ◽  
Mode Of Transportation

In any power plant coal obtained from the open pit mines should be transported to the plant for the production of power. Many means of transportations are available like truck, railways pipelines, Conveyor belts etc. For Industrial purpose material handling equipment are designed in a way such that material handling is easy, fast, less maintenance cost for the equipment, efficient, safe etc. This paper discusses how conveyor belt is a better mode of transportation in power plants than any other modes available. Provided with brief Discussion various parts of the conveyor belt, and also about some types of conveyor belts used in Power plants. There are many types of conveyer belts present that can be used as per the need of different power plants. Also provided with a proper safety design values for the safe and efficient working of the belt.

scholarly journals Mini-Crack Detection of Conveyor Belt Based on Laser Excited Thermography

2021 ◽  
Vol 11 (22) ◽  
pp. 10766
Author(s):  
Fei Zeng ◽  
Sheng Zhang ◽  
Tao Wang ◽  
Qing Wu
Keyword(s):  
Crack Detection ◽  
Signal To Noise Ratio ◽  
Thermal Response ◽  
Infrared Camera ◽  
Conveyor Belt ◽  
Detection Accuracy ◽  
Belt Conveyor ◽  
Thermal Images ◽  
High Speeds ◽  
Conveyor Belts

For a belt conveyor, a belt with mini-cracks influences the safety of the operation of the belt conveyor devices significantly. The lumpy material rubbing against a belt with mini-cracks will lead to detrimental tears on the belt while the conveyor works at high speeds. In order to detect mini-cracks in a timely manner, before the occurrence of large tears, a new mini-crack detection method for conveyor belts based on laser excited thermography is proposed. A laser beam is applied to generate a heat wave on the belt surface, so the corresponding thermal images can be recorded by an infrared camera. Then, an algorithm for extracting and fusing the features of mini-crack belt’s thermal images is firstly proposed by using time sequence analysis. It could transform multiple sequential thermal images into a single thermal image according to the frame difference method, so that the infrared thermal response of the mini-crack over time could be recorded quickly. To reveal the features of mini-crack, the power function image enhancement algorithm is proposed. After that, the threshold segmentation and Hough transform algorithm are used to determine the size of the mini-crack. The experimental results show that the mini-cracks with length of 50–140 mm, width of 1–10 mm, and depth of 5 mm can be successfully detected, and the detection accuracy could reach 96%. The detection results of different sizes of mini-crack show that the laser excited thermography has high damage sensitivity (1 mm diameter mini-crack detection), high accuracy (96%), lower power consumption (15 W laser excitation), and high SNR (signal-to-noise ratio).

scholarly journals Establishing failure patterns of a Belt Conveyor System configuration

2021 ◽  
Vol 9 (10) ◽  
pp. 1030-1034
Author(s):  
Olutayo Opeyemi Ogunmilua
Keyword(s):  
Fault Tree ◽  
Fault Tree Analysis ◽  
Mining Industry ◽  
Conveyor Belt ◽  
Belt Conveyor ◽  
Specific Knowledge ◽  
Conveyor System ◽  
Tree Analysis ◽  
Failure Patterns ◽  
System 2

Abstract: The conveyor belt is one of the most operational critical equipment’s in the mining industry, they are mostly used in the transportation of crushed materials from the crushing station to where there’ll be further processed. Due to the increasing complexity of belt conveyor systems, managing their integrity has become even more difficult, as they are now used across various industries, environments and carry materials of different weight variations, leaving them susceptible to failures (1). This paper provides an industry specific knowledge on belt conveyor systems, their respective components, and how they are configured using fault tree analysis to predict the different branches of event that can contribute to the failure of a belt conveyor system. The use of fault tree analysis sheds more light on how cascading failures can occur, where the failure of one component leads to the failure of the overall system. (2) Keywords: RCFA, FMEA Opex, FTA, Capex, Eca, Ttf, Ttr.

Research of Line-Friction Multi Driving Belt Conveyor

2013 ◽  
Vol 716 ◽  
pp. 638-642
Author(s):  
Yong Sheng Deng ◽  
Yong Zhang ◽  
Tao Zhou ◽  
Yong Sheng Zhou
Keyword(s):  
Driving Forces ◽  
Conveyor Belt ◽  
Transmission Mechanism ◽  
Belt Conveyor ◽  
Lower Intensity ◽  
Conveyor System ◽  
Driving Mode ◽  
Maximum Tension ◽  
Drive Motor ◽  
The Cost

On the basis of analyzing the line friction belt conveyor transmission mechanism of driving forces, the calculation method of driving force, as well as the design essentials of this conveyor system were pointed out. According to the conditons that the line friction drive motor power, the driving belt tensile strength and its minimum tension, the calculation formula of transmission belt length were obtained respectively. Meanwhile according to the maximum tension that supporting belt permitted, the position of the driving belt would be confirmed. Line friction driving mode may reduce the conveyor belt maximum tension, that is, the belt with a lower intensity levels could be selected, thereby the cost of conveying belt would be greatly reduced.

scholarly journals Analysis of Transient Belt Stretch for Horizontal and Inclined Belt Conveyor System

2019 ◽  
Vol 4 (5) ◽  
pp. 1169-1179 ◽  
Author(s):  
Sanjay G. Sakharwade ◽  
Shubharata Nagpal
Keyword(s):  
Conveyor Belt ◽  
Belt Conveyor ◽  
Conveyor System ◽  
Structure Damage ◽  
Starting Condition ◽  
Maximum Value ◽  
Sudden Rise ◽  
Static Calculation ◽  
Standard Value ◽  
Belt System

Belt is costliest part of belt conveyor system. Sudden rise in belt tension within transient starting condition, results in belt failure and structure damage. It is difficult to measure these stresses by static calculation method and hence their presence might go undetected. Belt elongation is an evident quantity for these stresses. Dynamic belt stretch is formulated in terms of displacement response of conjugative belt units with respect to time. This paper presents analysis of the event and propagation of dynamic belt stretch for straight horizontal and straight inclined belt conveyor system. Dynamic behavior of belt system is investigated for starting condition of fully stacked conveyor belt. Belt conveyor system is considered as series of vibrating mass and its unit is assumed to be a viscoelastic segment. Equation of motion of belt unit is developed by Lagrange’s approach. Observed transient parameters are more vibrant in inclined belt than the horizontal belt system. Maximum value of dynamic belt stretch for horizontal belt systems founds 1.13% of total belt length and for inclined belt conveyor system, it is 1.16% of belt length. Both values are within range of standard value specified for fabric belt system.

Magnetic Belt Conveyor Running Stability Analysis

2013 ◽  
Vol 437 ◽  
pp. 682-685 ◽  
Author(s):  
Gang Cheng ◽  
Yong Cun Guo ◽  
Kun Hu ◽  
Peng Yu Wang
Keyword(s):  
Stability Analysis ◽  
Stable Equilibrium ◽  
Conveyor Belt ◽  
Point Of View ◽  
Magnetic Suspension ◽  
Maintenance Cost ◽  
Belt Conveyor ◽  
Stable Equilibrium State ◽  
Stability Calculation ◽  
Roller Support

Magnetic suspension type belt conveyor used magnetic machinery technology design can solve the belt conveyor of roller support parts number, large energy consumption and high maintenance cost, limited tape speed, large noise and other issues. Magnetic belt conveyor design is the key to stability analysis of the operation of conveyor belt. Papers from a mechanical point of view to study the structural stability calculation. The results show that small interfering in the external magnetic conveyor belt, the permanent support system can be adjusted to spontaneously stable equilibrium state.

Application the Renewal Theory to Determining the Models of the Optimal Lifetime for Conveyor Belts

2014 ◽  
Vol 683 ◽  
pp. 97-101
Author(s):  
Anna Grinčová ◽  
Miriam Andrejiová ◽  
Peter Grendel
Keyword(s):  
Renewal Theory ◽  
Conveyor Belt ◽  
Transport Systems ◽  
Belt Conveyor ◽  
Operation Analysis ◽  
Conveyor Belts ◽  
Belt Conveyors ◽  
High Level ◽  
The Cost ◽  
Methods Of Operation

Belt conveyance belongs to the continual transport systems characteristic with high-level conveying performances. Belt conveyors are of significant importance in the transportation of various types of materials in the industries like engineering, metallurgy and construction. The fundamental and the most expensive component of belt conveyors is the conveyor belt which is, during the operation on the belt conveyor, exposed to number of various loads that evoke the process of conveyor belt wear and damage. Lifetime of conveyor belts, which is the determining parameter for the belt conveyance economy and efficiency, is very important for the practice.Issues regarding the conveyor belt lifetime should be solved applying also the methods of operation analysis, especially the linear programming and the renewal theory that uses the theory of probability and mathematic statistics. The objective of our research was to determine the optimal lifetime (optimal performance duration) of a belt conveyor, applying the renewal theory, whereas the research was based on the cost approach of the renewal process.

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