Study on Belt Conveyor Direct Driven by External-Rotor PMSM

2012 ◽  
Vol 619 ◽  
pp. 14-17 ◽  
Author(s):  
Gui Hong Feng ◽  
Jian Ying Yu ◽  
Bing Yi Zhang ◽  
Bing Wang ◽  
Han Guang Sun
Keyword(s):  
High Efficiency ◽  
Cooling System ◽  
Direct Drive ◽  
Belt Conveyor ◽  
Transmission Equipment ◽  
Transportation Capacity ◽  
Drive Belt ◽  
Belt Conveyors ◽  
Water Cooling System ◽  
External Rotor

As material transmission equipment, belt conveyor is widely used in coal, electricity, machinery and other industries. This paper proposes a belt conveyor that directly driven by external-rotor PMSM, the drive-roller is the external-rotor, remove coupling, reducer and hydraulic coupling. The new drive system features low power consumption, high efficiency, minimum in size and weight, stable and noiseless action. Ensure the same transportation capacity, taking the SSJ1000/2×75 belt conveyors as object design a 100kW external-rotor PMSM direct drive belt conveyor. The analysis result shows the new PMSM direct drive belt conveyor is feasible; at last, design a water cooling system for the fever problem of the new belt conveyor.

scholarly journals Speed control of high power multiple drive belt conveyors

2021 ◽  
Vol 27 (1) ◽  
pp. 9-15
Author(s):  
Milan Vasić ◽  
Nenad Miloradović ◽  
Mirko Blagojević
Keyword(s):  
Power Consumption ◽  
High Power ◽  
Material Flow ◽  
Mining Industry ◽  
Electricity Consumption ◽  
Belt Conveyor ◽  
Speed Regulation ◽  
Drive Belt ◽  
Simulation Results ◽  
Belt Conveyors

Belt conveyors play a very important role in the continuous transport o f bulk and piece material, especially in the mining industry. However, the use o f belt conveyors results in high electricity consumption. A reduction in the power consumption can be achieved by adjusting the speed o f the belt conveyor to match the material flow. However, inappropriate and frequent speed changes can cause serious damage to the conveyor elements. This paper presents a procedure for adjusting the belt conveyor speed to match the profile o f the material on the belt, as well as a detailed procedure for determining the time needed to accelerate/decelerate the belt conveyor. The research was performed on an actual 640 m long belt conveyor used for transport o f overburden at the surface mine Drmno (Serbia). The simulation results show that the speed regulation is completely justified because the conveyor operated at speeds lower than nominal throughout the testing.

Control Algorithm of Permanent Magnet Direct Drive Belt Conveyor System for Mining Based on Reduced Order Model

2021 ◽  
Vol 35 (14) ◽  
Author(s):  
Jiehui Liu ◽  
Hao Qin ◽  
Guimei Wang ◽  
Haichao Zhao
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Reduced Order Model ◽  
Direct Drive ◽  
Belt Conveyor ◽  
Order Model ◽  
Conveyor System ◽  
Reduced Order ◽  
Predictive Controller ◽  
Drive Belt

Over the decades, permanent magnet synchronous motor (PMSM) has been widely used in coal mine production. In this paper, an optimized neural network predictive controller (NNPC) of permanent magnet direct drive belt conveyor system (BCS) for mining based on reduced order model (ROM) is established. First, in order to establish the full order model of the permanent magnet direct drive BCS, CEMA is used for dynamic analysis, and the dynamic equation of the permanent magnet direct drive BCS is established. Second, the Proper Orthogonal Decomposition (POD) method is used to reduce the order in this paper. Finally, the NNPC of permanent magnet direct drive BCS based on the ROM is proposed. The simulation result shows that the order of BCS model is effectively reduced by the POD method. The NNPC based on the ROM has a good performance in the control of permanent magnet direct drive BCS, and the error between of the full order model and the ROM is 0.19[Formula: see text]m/s.

DYNAMIC DISTRIBUTED MODEL OF MULTI-DRIVE BELT CONVEYOR

2017 ◽  
pp. 99-110
Author(s):  
Andrey Vladimirovich Zatonskiy
Keyword(s):  
Distributed Model ◽  
System Management ◽  
Type Result ◽  
Belt Conveyor ◽  
Partial Models ◽  
Drive Belt ◽  
Emergency Stop ◽  
Belt Conveyors ◽  
Drive Dynamics ◽  
Simple Schema

The article deals with a problem of long multi-drive belt conveyors modeling. Disadvantages of existed methods prevent from using multi-drive long conveyors for ore reloading. The author has described two types of models. In the first type, all loading is calculated and reduced to a torque on a drum. In the second type, the conveyor operation is closely examined. The methods of the first type result in dot patterns, which optimize conveyor operation in the routine mode. The methods of the second type allow calculating breakage of the belt, but the drive dynamics should be determined beforehand. The author has designed a distributed model of such conveyors based on quite simple partial models of physics of conveyor elements. The whole belt should be divided into short segments, forces acting upon segments being integrated along the belt. Features of segment positions should be taken into account: whether the segment is on a driving drum, on a drum without torque, loaded or unloaded, at the place of loading, reloading, or discharge, etc. The algorithm of forces and accelerations calculation is based on the method of simple iterations. The software includes a simple schema editor and subroutines of a model. The adequacy of the modeling results has been shown in the course of normal conveyor regime, in the course of overloading and slipping. The updated model has been considered to be used for synthesis of the system management, in particular, for developing a program for the loaded conveyor start after emergency stop.

scholarly journals Improving the cooling system of ship equipment

2020 ◽  
Author(s):  
А.В. Фомин ◽  
Е.В. Фомин
Keyword(s):  
Power Plants ◽  
High Efficiency ◽  
Cooling System ◽  
Heat Removal ◽  
Normal Operation ◽  
Water Cooling ◽  
Cooling Systems ◽  
Start Up ◽  
Membrane Type ◽  
Water Cooling System

В статье представлены результаты исследования эффективности работы системы охлаждения корабельного оборудования и предложены конструктивные решения, позволяющие модернизировать данную систему. В настоящее время, для обеспечения нормальной работы корабельного оборудования, применяются системы охлаждения. В корабельных энергетических установках распространены системы водяного охлаждения из-за целого ряда преимуществ. К ним относится и высокая эффективность теплоотвода, и меньшее влияние внешней среды, а также более надежный пуск и возможность использования энергии отводимого тепла для других нужд. Одним из основных элементов в таких системах является расширительный бак гравитационного типа, обеспечивающий правильную циркуляцию дистиллированной воды во внутреннем контуре и расположенный в верхней точке системы. Однако практика испытаний и эксплуатации показала, что есть и серьезный недостаток в таком расположении бака – в случаи его перелива или разрыва может пострадать дорогостоящее оборудование, расположенное ниже. В связи с этим, определены направления по совершенствованию системы водяного охлаждения корабельного оборудования, которые связаны с применением расширительного бака мембранного типа и использования воздухоудаляющих клапанов. The article presents the results of a study of the efficiency of the cooling system of ship equipment and offers design solutions that allow to modernize this system. Currently, to ensure the normal operation of ship's equipment, cooling systems are used. Water cooling systems are common in ship power plants due to a number of advantages. These include high efficiency of heat removal, less influence of the external environment, as well as more reliable start-up and the ability to use the energy of the heat being withdrawn for other needs. One of the main elements in such systems is a gravity-type expansion tank that ensures proper circulation of distilled water in the internal circuit and is located at the top of the system. However, the practice of testing and operation has shown that there is a serious drawback in this arrangement of the tank – in cases of overflow or rupture, expensive equipment located below may suffer. In this regard, the directions for improving the water cooling system of ship equipment, which are associated with the use of an expansion tank of the membrane type and the use of air-removing valves, have been identified.

Dynamics of Multiple-Drive Belt Conveyors during Starting

2016 ◽  
Vol 842 ◽  
pp. 141-146
Author(s):  
Indraswari Kusumaningtyas ◽  
Ashley J.G. Nuttall ◽  
Gabriel Lodewijks
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Elastic Response ◽  
Belt Conveyor ◽  
Conveyor System ◽  
Start Up ◽  
Drive Belt ◽  
Stationary Conditions ◽  
Belt Conveyors

In this paper, the dynamics of multiple-drive belt conveyors during starting is discussed. The aim of the research is to determine whether the belt sections in a multiple-drive belt conveyor can be viewed as a single-drive belt conveyor, and whether the DIN 22101 standard for the starting of a single-drive belt conveyor can still be used for the starting of a multiple-drive belt conveyor. A finite element model of a belt conveyor system was built in Matlab, consisting of a model of the belt and its support structure, and a model of the drive system. In this work, the simulations were carried out for the starting procedures of empty belt conveyors with varying number of drives. For each simulation case, the linear start-up procedure was tested. The simulations focused on the study of the axial elastic response of the belt. The simulations revealed that, by using more drives, the maximum belt stress during non-stationary as well as stationary conditions decreased. However, when using reduced starting times, negative stresses occur in the system. Overall, it was observed that the behaviour of each section between two drive stations in the multiple-drive belt conveyor differed from those of the single-drive belt conveyor. Therefore, the DIN 22101 guidelines for the start-up of a single-drive belt conveyor cannot be applied directly for the start-up of a multiple-drive belt conveyor.

Power Consumption Model of Permanent-Magnet Direct-Drive Belt Conveyor System Based on GACO–BP

2022 ◽  
Author(s):  
Xuyang Han ◽  
Guimei Wang ◽  
Jiehui Liu ◽  
Lijie Yang ◽  
Pingge Zhang
Keyword(s):  
Power Consumption ◽  
Permanent Magnet ◽  
Total Power ◽  
Direct Drive ◽  
Belt Conveyor ◽  
Conveyor System ◽  
Belt Speed ◽  
Speed Regulation ◽  
Drive Belt ◽  
Consumption Model

Permanent-magnet direct-drive belt conveyors (PMDDBCs) rotate at high speed most of the time, resulting in a large number of invalid energy consumption. To realize the speed regulation of PMDDBC, it is necessary to clarify the relationship between the belt speed, coal quantity of the conveyor and total power of the system. Based on the BP neural network, this paper establishes the power consumption model of PMDDBC, which is related to coal quantity, belt speed and total power. Furthermore, an improved hybrid algorithm (GACO) that combines the advantages of genetic algorithm (GA) and ant colony optimization (ACO) is proposed to optimize the BP power consumption model. The GACO–BP power consumption model is obtained. The original power consumption model is compared with the GACO–BP power consumption model through experiments. Results demonstrate that the GACO–BP power consumption model reduces various prediction errors, while the optimization ability, prediction accuracy and convergence speed are significantly enhanced. It provides a reliable speed regulation basis for the permanent-magnet direct-drive belt conveyor system and also provides a theoretical reference for energy savings and consumption reduction in the coal industry.

scholarly journals SPECIFIC ENERGY CONSUMPTION – THE COMPARISON OF BELT CONVEYORS

Mining Scince ◽  
2019 ◽  
Vol 26 ◽  
Author(s):  
Natalia Suchorab
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Inclination Angle ◽  
Specific Energy ◽  
High Efficiency ◽  
Bulk Material ◽  
Specific Energy Consumption ◽  
Mining Industry ◽  
Belt Conveyor ◽  
Belt Conveyors

Belt conveyors (BCs), because of their high efficiency, are widely used for bulk material handling in the mining industry. However, due to the high level of conveyors’ energy consumption, the belt conveyor systems generate a large part of mining costs. Therefore, the current solutions mostly focus on implementing new management strategies, which find energy consumption as a key indicator in designing belt conveyor systems. Belt conveyor equipment selection, conveying systems, operation, applied mining technology are considered to be areas where improvement of belt conveyors’ energy efficiency may be achieved. Moreover, they can be used to implement novel standards for BC equipment and the proposal of defining new quality standards and creating BCs’ classification has been already outlined. The main idea of the paper is to compare the values of specific energy consumption (SEC) of BCs with regard to the inclination angle of a conveyor route which results from technological needs. The multiple regression is used to find a relationship between two basic independent variables – the volume of transported material and conveyor’s inclination angle – and a dependent variable (SEC). The procedure enables to determine the value of SEC which is required for lifting the material. Presented results prove that the value of SEC required for lifting the material is crucial for the interpretation of the SEC value when it comes to energy efficiency comparison.

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