Foreign body recognition for coal mine conveyor based …
In the Ref. [10,11, 12], the authors utilized computer vision technology to perform real-time monitoring of foreign objects such as large pieces of coal and gangue in the mining conveyor belt ...
Fault Diagnosis of Permanent Magnet …
The coal mine belt conveyor is very important transportation equipment in coal mining, and is advantageous in that it is effective over long transmission distances, has strong transmission …
Coal Handling Systems & Coal Mining Belt Conveyors
Click to Request a Quote or call us at 843.519.1651. Montague Legacy Group constructs custom conveyor systems for coal handling with low power consumption and maintenance. Our systems can transfer coal for medium to large capacity plants and be easily transferred unlimited distances. Call Montague today to learn more!
Optimal scheduling method for belt conveyor system in coal mine …
As one of the main energy production and supply sector in China, the coal industry consumes huge energy during the period of coal mining. In 2016, the power consumption of coal mining and coal preparation is as high as 84.704 billion kWh [1]. The high energy consumption of coal mining brings serious environmental pollution issues [2].
Research on the data validity of a coal mine solid backfill …
Figure 2 shows a view of the face fill for solid backfill mining. This includes hydraulic support, scraper conveyors, throwing machines and their supporting equipment systems. The hydraulic ...
System for Mine Belt Conveyors
Coal mine belt conveyors are not only traditional, simple mechanical conveying devices but also automatic control system operating devices that integrate …
CONSTRUCTIVE DESIGN OF A BELT CONVEYOR FOR A …
The heap material for the conveyor is coal, so some properties of the coal are given in Table 1. Transportation capacity of the belt conveyor is 500 tons per hour and velocity is 1,75 …
NEPEAN Conveyors | Underground
NEPEAN Conveyors are the large scale mining conveyors projects arm of NEPEAN Mining, a division of NEPEAN, Australia's largest privately owned engineering, mining services and industrial manufacturing organisation.. NEPEAN Conveyors, NEPEAN Power and NEPEAN Longwall provide an extensive portfolio of products and services to …
Fines Generation and Its Impacts at Morupule Underground Coal Mine …
Twelve coal samples of 20 kg were collected from each of the four operating mining sections and conveyor belts. They were tested for their mechanical and chemical properties. The results show that coal from section SM 3/1 is the most brittle, with a value of 31.25%, while the coal from section SM 4/5 is the least brittle, with a value of 15.5%.
Conveyors
Consider Belt Speed: The speed of the conveyor belt should match the operational requirements of the coal mine, ensuring efficient coal transport …
Coal Mine Belt Conveyor Foreign Object Detection Based …
Belt conveyor is a crucial equipment during the coal mining- and transportation-operation process. Foreign objects, like large gangue, anchor rods, once mixed into the belt, can lead to the belt's damage and will thereby cause safety problems in mines. Since the belt is working in a bad illumination and a rather high-speed condition, accurately detecting …
Research on Control System of Belt Conveyor in Coal …
A large conveyor belt with the capacity of 37,500 t/h and speed of 7.4 m/s has been applied in one open pit mine of Germany [ 1 ]. Compared with foreign countries, the …
(PDF) Structural and Discrete Element Analysis of Coal Mine Conveyor
In this study, the relationship between the operation speed and the occurred stresses on the designed coal mine conveyor was analyzed with DEM and FEA methods. The forces act on the conveyor belt system were obtained through DEM and these forces were applied to get structural effect of the coal and operation speed.
A new machine vision detection method for identifying and …
Large foreign object transporting by coal mine conveyor belt may lead to production safety hazards. To reduce safety accidents during coal mining, a large foreign object detection method based on machine vision is proposed in this paper. An adaptive weighted multi-scale Retinex (MSR) image enhancement algorithm is proposed to …
Speed regulation strategy and algorithm for the …
The control strategy and algorithm adjust the running speed of the belt conveyor accurately according to changes in the material flow rate, thus reducing damage of frequent speed regulation to the belt …
Coal Conveyors | Conveyor Belts for Coal Handling
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Conveyor Belt SystemWEBIn order to reduce the high electricity cost of the belt conveyor system in a coal mine, a virtual energy storage model of the belt conveyor system is proposed …
(PDF) Energy saving control method of electrical drives in …
Energy saving control method of electrical drives in coveyor belts with regulated speed in surface brown coal mine January 2008 Archives of Mining Sciences 53(2):319-329
Article Coal Mine Belt Conveyor Foreign Objects …
environment of a coal mine underground is complex, and the coal flow of the belt con‐ veyor is mixed with large coals, gangues, anchor rods, angle irons, wood, and other for‐ eign objects [1,2]. If these foreign objects are not cleaned in time, they will easily get stuck and even cause a tear in the conveyor belt, affecting normal mining of ...
Processes | Free Full-Text | Research on and Design …
Mine belt conveyors are mainly used in tunneling work and mining applications, including coal mining. They are also used in underground construction and excavation work. This type of equipment …
Foreign body recognition for coal mine conveyor based …
Abstract: Due to the high noise and complicated scene of the visual scene of the coal mine conveyor belt, the foreign body recognition for the conveyor belt image needs to be more efficient. In this paper, we introduce a method for coal and foreign body recognition in coal mine conveyor belt images, based on Principal Component Analysis Network (PCANet) …
Coal flow volume detection method for conveyor belt
The width of the conveyor belt is 0.8m and the length is 12m. The speed of the conveyor belt can be adjusted using a frequency converter, with a maximum speed of 3.0m/s, which is similar to the actual speed in a coal mine. The conveyor adopts triple trough rollers, and the distance between the vertices of the side idlers is 0.78m.
Longitudinal torsional vibrations of the chain drive system of mine …
Lianhang, X. & Hunjun, L. Analysis on breaking causes of middle Pans of scraper conveyor in fully-mechanized high cutting coal mining face. Coal Sci. Technol. 42(04), 126–128 (2014). Google ...
Energies | Free Full-Text | Coal Mine Belt Conveyor Foreign …
The belt conveyor is an important transportation equipment in the coal mine. The environment of a coal mine underground is complex, and the coal flow of the belt conveyor is mixed with large coals, gangues, anchor rods, angle irons, wood, and other foreign objects [1,2].If these foreign objects are not cleaned in time, they will easily …
Design and analysis of low-speed high torque direct-driven …
Abstract: This paper studies the characteristics and design concept of low-speed high-torque direct-driven PMSM with fractional-slot concentrated winding used in coal mine belt conveyor system. The fractional slot concentrated winding PMSM with high efficiency, high power density and simple windings type is used widely, and more attention is paid …
A Faster and Lighter Detection Method for Foreign Objects in Coal Mine …
The detection speed achieved was 25.64 frames per second. However, the extensive use of depthwise separable convolutions led to decreased recognition accuracy, with a precision rate of only 92.8%. With the rapid development of high-speed belt conveyors, there is a need for faster frame rates to capture clear images.
Fresh Approaches for Coal Conveyors
Raw coal is cash flow for the mine and a 3-million ton-per-year operation can lose as much $15,000/hour when its mainline conveyor goes down. Programs that optimize costs and maintain availability are essential in today's business climate.
Detection of Large Foreign Objects on Coal Mine Belt Conveyor …
The algorithm assures detection accuracy while increasing detection speed, satisfying the requirements for large foreign object detection on belt conveyors in coal mines. An algorithm based on the YOLOv5 model is proposed to address safety incidents such as tearing and blockage at transfer points on belt conveyors in coal mines caused …
ROM Stockpile Conveyor + Underground Coal Clearance …
Scope. Design, manufacture and supply of four underground conveyor systems. An underground 'sizing & splitter transfer station' capable of joining three existing coal mines and enabling coal divergence from Mine A to either the coal preparation plant of Mine B via the Mine B conveyor clearance system and winder, or the Mine C coal clearance …
Armoured Face Conveyor | Introduction | underground COAL
The major development, apart from self-advancing supports, allowing high production longwalls to evolve was the "Armoured Face Conveyor or AFC" which was originally developed in Germany and was frequently (less so nowadays) referred to as a "Panzer" conveyor. Essentially an AFC is a one-sided trough scraper conveyor, the second side …
How to Choose a Mining Conveyor Belt
Belt Structure. The DELTA or DELTA CFW belt textile carcase is made up of layers of fabric, from 2 to 5 (or more) plies. Each of these is separated by a rubber layer. This «sandwich» structure enables …