The Monitoring and Analysis of Textile Conveyor Belt by Industrial Metrotomographs

2015 ◽  
Vol 803 ◽  
pp. 207-214
Author(s):  
Peter Michalik ◽  
Vieroslav Molnar
Keyword(s):  
Strain Gauge ◽  
Measurement Method ◽  
Tensile Force ◽  
Conveyor Belt ◽  
The Other ◽  
Test Equipment ◽  
Torque Wrench ◽  
Conveyor Belts ◽  
Measured Sample ◽  
Strain Gauge Sensor

The article deals with a description of new test equipment and methodology of an analysis of textile rubber conveyor belts loaded by a tensile force. This construction is designed tensioning device, which allows the development of automatic tensioning force in one axis X-tensioning force F is exerted screw the nut with a torque wrench and a controlled strain-gauge sensor. Measured sample-textile conveyor belt is clamped in two adjustable clamping jaws ribbed belts for different thicknesses. Ribbed clamping jaws on one side of the tensioning device is attached to the frame and on the other hand are attached to the runner associated with the movable tensioning screw. Presented measurement method arises from existing norms. Sensing sample section of the conveyor belt is carried out on CMMs based CT for parts with different size and density of the material.

Test Equipment for Analysis of Samples Rubber – Textile Conveyor Belts by Help Industrial Metrotomographs

2014 ◽  
Vol 683 ◽  
pp. 208-212 ◽  
Author(s):  
Peter Michalik ◽  
Vieroslav Molnar
Keyword(s):  
Cross Sections ◽  
Strain Gauge ◽  
Conveyor Belt ◽  
The Other ◽  
Test Equipment ◽  
Other Hand ◽  
Torque Wrench ◽  
Conveyor Belts ◽  
Measured Sample ◽  
Strain Gauge Sensor

The test equipment of samples for analysis of rubber-textile conveyor belts is a device designed to create tension and tracking the deformation in different cross sections of conveyor belts in one axis X. This construction is designed tensioning device, which allows the development of automatic tensioning force in one axis X-tensioning force F is exerted screw the nut with a torque wrench and a controlled strain-gauge sensor. Measured sample-textile conveyor belt is clamped in two adjustable clamping jaws ribbed belts for different thicknesses. Ribbed clamping jaws on one side of the tensioning device is attached to the frame and on the other hand are attached to the runner associated with the movable tensioning screw.

scholarly journals EXPERIMENTAL STUDY AND ANALYSIS OF FLAT BELT CONVEYER SYSTEM WITH DIFFERENT WEIGHT CONDITION

2021 ◽  
Vol 8 (12) ◽  
pp. 328-332
Author(s):  
Vishnu Dutta Tiwari ◽  
Gouraw Beohar
Keyword(s):  
Experimental Study ◽  
Conveyor Belt ◽  
The Other ◽  
Belt Conveyer ◽  
Uneven Bottom ◽  
Weight Condition ◽  
Conveyor Belts ◽  
Conveyer System ◽  
Drive Pulley ◽  
Belt System

A conveyor belt system essentially consists of an endless belt of elastic material connected between two flat pulleys and driven by the rotation of one of the pulleys by a direct current motor. Usually, the material is fed to the belt near the other end of the pulley. The moving belt that carries the material to the drive pulley tends to sag between the two end pulleys due to its own weight. Rubber conveyor belts are commonly used to transport items with uneven bottom surfaces, small items that fall between rolls, or product bags that sag between rolls.

Assessing bias, precision, and agreement in method comparison studies

2019 ◽  
Vol 29 (3) ◽  
pp. 778-796 ◽  
Author(s):  
Patrick Taffé
Keyword(s):  
Measurement Method ◽  
Method Comparison ◽  
Estimation Procedure ◽  
Measurement Methods ◽  
Repeated Measurements ◽  
Confidence Bands ◽  
The Other ◽  
Reference Standard ◽  
Simultaneous Confidence Bands ◽  
Index Of Agreement

Recently, a new estimation procedure has been developed to assess bias and precision of a new measurement method, relative to a reference standard. However, the author did not develop confidence bands around the bias and standard deviation curves. Therefore, the goal in this paper is to extend this methodology in several important directions. First, by developing simultaneous confidence bands for the various parameters estimated to allow formal comparisons between different measurement methods. Second, by proposing a new index of agreement. Third, by providing a series of new graphs to help the investigator to assess bias, precision, and agreement between the two measurement methods. The methodology requires repeated measurements on each individual for at least one of the two measurement methods. It works very well to estimate the differential and proportional biases, even with as few as two to three measurements by one of the two methods and only one by the other. The repeated measurements need not come from the reference standard but from either measurement methods. This is a great advantage as it may sometimes be more feasible to gather repeated measurements with the new measurement method.

scholarly journals Effect of anthropogenic aerosol emissions on precipitation in warm conveyor belts in the western North Pacific in winter – a model study with ECHAM6-HAM

2016 ◽  
Author(s):  
Hanna Joos ◽  
Erica Madonna ◽  
Kasja Witlox ◽  
Sylvaine Ferrachat ◽  
Heini Wernli ◽  
...  
Keyword(s):  
North Pacific ◽  
Aerosol Particles ◽  
Conveyor Belt ◽  
Radiation Balance ◽  
Anthropogenic Aerosol ◽  
Model Study ◽  
Conveyor Belts ◽  
Winter Time ◽  
Warm Conveyor Belts ◽  
Aerosol Emissions

Abstract. While there is a clear impact of aerosol particles on the radiation balance, whether and how aerosol particles influence precipitation is controversial. Here we use the ECHAM6-HAM global cli- mate model coupled to an aerosol module to analyse whether an impact of anthropogenic aerosol particles on the timing and the amount of precipitation from warm conveyor belts in low pressure systems in the winter time North Pacific can be detected. We conclude that while polluted warm con- veyor belt trajectories start with 5–10 times higher black carbon concentrations, the overall amount of precipitation is comparable in pre-industrial and present-day conditions. Precipitation formation is however supressed in the most polluted warm conveyor belt trajectories.

scholarly journals Performance of Cans Classification System for Different Conveyor Belt Speed using Naïve Bayes

2020 ◽  
Vol 5 (4) ◽  
pp. 111
Author(s):  
Yulia Resti ◽  
Firmansyah Burlian ◽  
Irsyadi Yani
Keyword(s):  
Classification System ◽  
Naive Bayes ◽  
Conveyor Belt ◽  
Original Model ◽  
Model Based ◽  
Accuracy Level ◽  
Conveyor Belts ◽  
Sorting Process ◽  
Input Variables

The classification system in the sorting process in the can recycling industry can be made based on digital images by exploring the basic color pixel values ​​of images such as R, G, and B as variable inputs. In real time, the classification of cans in the sorting process occurs when cans placed on a conveyor belt move at a certain speed. This paper discusses the performance of can classification systems using the Naïve Bayes method. This method can handle all types of variables, including when all variables are continuous. Two types of conveyor belts are designed to get different speeds, and all images of the cans are captured on both conveyor belts. Two models of Bayes naive are built on the basis of the different distribution assumptions; the original model (all Gaussian distributed) and the model based on the best distribution. Performance of the classification system is built by dividing data into the learning data and the testing data with a composition of 50:50 in which each data is designed into 50 groups with different percentages on each type of cans using sampling technique without replacement. The results obtained are, first, the speed of the conveyor belt when capturing an image affects the pixel values of red, green, and blue and ultimately affects the results of the classification of cans. Second, not all input variables are Gaussian distributed. The classification system was built using assumption the best distribution model for each input variable has the better average accuracy level than the model that assumes all input variables are Gaussian distributed, and the accuracy level of classification on the first speeds of conveyor belt with a gear ratio of 12:30 and a diameter of 35 mm has an accuracy that is better than the other speed, both on the original model and the model based on the best distribution. However, it is necessary to test more statistical distribution models to obtain significant results.

scholarly journals Design of Device for Capturing Conveyor Belts and Calculation Method of Basic Parameters for Catchers

2019 ◽  
Vol 18 (3) ◽  
pp. 223-232
Author(s):  
A. V. Glebov ◽  
G. D. Karmaev
Keyword(s):  
Conveyor Belt ◽  
Design Parameters ◽  
Brake Shoe ◽  
Reverse Motion ◽  
Motion Time ◽  
Calculation Methodology ◽  
Patent Literature ◽  
Conveyor Belts ◽  
Scientific Technical ◽  
Belt Width

Results of the analysis of scientific, technical and patent literature show that while having a great variety of constructive implementation of the proposed catchers there are no efficient and sufficiently reliable devices for catching conveyor belts at its reverse motion which are relatively simple in design. This is proved by practical activity of enterprises involved in extraction and processing of commercial minerals and other industries. A new design of a conveyor belt catcher that meets most requirements for the given equipment has been developed at the Institute of Mining, Ural of Branch of the Russian Academy of Sciences and then it has been tested under industrial conditions. The design makes provision for retention of the conveyor belt at its reverse motion beyond free edges from transported material. Catching devices are installed on both sides of the belt. Braking action of the belt at the reverse motion occurs due to its friction interaction with a catcher friction shoe located above the belt, and an eccentric mounted on the frame under the belt. A friction shoe is made with a concave curved surface facing the belt. The paper presents a calculation methodology of main parameters for the proposed design of catcher conveyor belts that permits to determine a force catching a conveyor belt down and for every braking period distance which has been passed by the belt, value of its compression, value of braking force, braking time and acceleration of belt motion, time and length of the distance passed by the belt to its full stop, parameters of a catcher and supporting structures, and other parameters. The paper also provides results of calculations for main design parameters of catching devices with an inclined conveyor having a belt width of 1400 mm for two catcher design versions: with location of an eccentric under the belt, and a brake shoe over the belt (option I) and with location of the eccentric over the conveyor belt, and the brake friction shoe under the belt (option II).

Failure analysis of conveyor belt samples under tensile load

2018 ◽  
Vol 48 (8) ◽  
pp. 1364-1383 ◽  
Author(s):  
Gabriel Fedorko ◽  
Vieroslav Molnár ◽  
Peter Michalik ◽  
Miroslav Dovica ◽  
Tatiana Kelemenová ◽  
...  
Keyword(s):  
Internal Structure ◽  
Tensile Load ◽  
Relaxation Effect ◽  
Tensile Loading ◽  
Conveyor Belt ◽  
Loading Test ◽  
Strength Limit ◽  
Conveyor Belts ◽  
Tomographic Analysis

This paper is dedicated to investigating the properties of smooth conveyor belts through a tensile loading test, with the aim of examining the behavior of the inner structure of the belt samples. When the belt is subjected to a long-term strain, the belt relaxation effect is observed and changes may occur to the inner structure of the belt. The tensile test at constant velocity determines the load strength limit of the strip samples. The experiment has also shown the phenomenon of relaxation of the samples after the load. Metro-tomographic analysis is used to observe the behavior of the internal structure of the belt sample after the load. The obtained results indicate the initial damage of the inner structure of the conveyor belt occurred at the value of 2157 N. Under this load, the maximum damage size was 4.8 mm. This confirms the suitability of the method for tracking changes in the internal structure.

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