Mining shovel is a crucial piece of equipment for high-efficiency production in open-pit mining and stands as one of the largest energy consumption sources in mining. However, substantial energy waste occurs during the descent of the hoisting system or the deceleration of the slewing platform. To reduce the energy loss, an innovative hydraulic …
The evaluation and prediction of reliability and testability of mining machinery and equipment are crucial, as advancements in mining technology have increased the importance of ensuring the safety of both the technological process and human life. This study focuses on developing a reliability model to analyze the …
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development of methods and means of controlling the operational state of existing systems in complex mining-geological and mining-engineering ... for gearless drive of a mine hoisting machine and K1= K2=1.20 for machines with a reducer. The main scientific problems, the solution of which is necessary to ensure the efficiency ...
Mine Hoisting. The earliest method for mine hoisting was hoisting by hand. During the Warring States Period and the Western Han Dynasty, as shaft became deeper, the hoisting capacity increased to one or two hundred kg, so the wooden windlass with an arresting device was invented. In terms of hoisting method, level-by-level …
Download scientific diagram | (a) Friction hoist in mine and (b) diagrammatic sketch of hoisting ropes vibration. from publication: Stereovision-based method for free vibration measurement of a ...
This paper proposes a novel, non-contact, sensing method to measure the transverse vibrations of hoisting catenaries in mine hoists. Hoisting catenaries are typically moving cables and it is not ...
ABB has the unique capability to design, supply, install and provide long-term service and support of entire mine hoist mechanical and electrical systems. We supply friction hoists as well as drum hoists of various …
wire rope of deep mining hoisting system is acquired by establishing a mathematical model and solving it by Galerkin discrete method. The results show that: for the deep mining hoisting system with hoisting depth of 1000m and hoisting load of 25 t, when there is an excitation with amplitude
Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics. ORCID: 0000-0001-6466-7398 Abstract. The paper presents the issues of the influence on the supply electrical power grid of the thyristor rectifier supplying high power receivers such as a shaft hoisting …
The issues of the evaluation and prediction of the reliability and testability of mining machinery and equipment are becoming particularly relevant, since the safety of technological processes and human life is reaching a new level of realisation due to changes in mining technology. The work is devoted to the development of a logical …
Mining Methods Turgay Onargan, An economic viability of a modern day mine is highly dependent upon careful planning and management. Declining trends in average ore ... explosives and blasting, mucking, haulage, hoisting, and supports and reinforcement. The book then describes excavation techniques for various operations, …
Coal resources occupy an important position in the global energy mix. More than 80% of coal resources in China are transported by underground hoisting, and mine hoisting equipment (in Fig. 1 a) is the crucial equipment for transporting coal from underground to the ground surface [1], [2].As the main load-bearing component of mine …
The mine shaft, as a working mine and for energy storage, is subject to relevant regulations that need to be met. To confirm the assumptions about the possible use of the existing infrastructure, measurements of one hoisting machine in Poland were carried out and example results of these measurements are included.
measurement of a mine hoisting rope Ganggang Wu1, Xingming Xiao1, Chi Ma1 and Yuqiang Jiang1 Abstract Currently, there are no suitable means to measure the composite vibration response of mine hoisting rope. However, machine vision-based measurement technology is a potential way to solve this problem. Therefore, a non …
of the mining industry. I encourage you to use the Handbook, and use it wisely. RESPONSE . Mining industry response to the book continues to be incredible. Thanks in large part to the efforts by John Chadwick of the Mining Journal,, and many other members of the mining community, the Hard Rock Miner's
One of the most critical aspects of underground mining operations is the design of shafts and hoisting systems. Underground mining is a complex and challenging endeavor that requires meticulous ...
METHOD OF RESTORING MINE HOISTING MACHINE BRAKE UNIT LEVER TRANSMISSION BUSHING Marat Ibatov2, Ali Mekhtiyev 1,2, Felix Bulatbayev2, Oxana Yakupova3a 1National Research Tomsk Polytechnic University, 634050, Tomsk, Russia 2Karaganda State Technical University, 100000, Karaganda, Kazakhstan 3National …
In the future, the most critical mining methods will be underground mining and even deep mining. In underground mining of hard rock mines, the production …
mining methods & geology; metal mining; jora hoisting method; jora hoisting method . 24-04-2020; 2364; 0; click me to download pdf notes on jora hoisting method of raising. notes contain jora hoisiting method of raising,it's mechanism,applicability,stages involved,limitations etc. related sources ...
1.1 Problems of the existing hoisting method. ... The acceleration of the mining hoist is usually in the range of 0.5-0.75 m/s 2 [31]. In this study, an acceleration of 0.5 m/s 2 is selected when ...
Using this method, almost any shaft geometry is feasible and challenging ground conditions can be sunk through with acceptable sinking performances. Particularly mucking and hoisting operations of the sinking cycle have a relevant impact on sinking performance and offer a considerable optimization potential.
The mining method used will depend on the characteristics of the orebody, particularly thickness
Skip hoisting is an intermittent material hoisting method using a skip as hoisting container. There are two types of skip hoisting: single skip balance weight …
The efficiency of the geometric modeling method has improved 93% compared with the traditional CAD modeling method and the modeling result has great similar to the real mining hoisting system. The behavior modeling method realizes the mapping of real entity behavior without adding new sensors and without shutting down, saves a lot of cost and ...
The company successfully passed the IS09001 quality management system certification in March 2005, ensuring the orderly and stable development of the company's quality management system.The company has now won the coal safety certification and has become a formal member of the Electromechanical Professional Committee and the …
In the longwall mining method, mine dev elopment is carried out in such a manner tha t large blocks of coal, usually 100 to 300 metres wide and 1,000 to 3,000 metres long, are available for com plete
The mining industry is continually evolving, and innovations in shaft and hoisting systems are helping to improve efficiency, safety, and cost-effectiveness. Some notable innovations include: 8.1.
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Hoister. Hoists include single-rope winding hoister, multi-rope friction hoister, Blair hoister (multi-rope winding hoist), and mine winch. Any type of hoister can be used …
Hoisting. We offer a wide range of innovative standard and custom-designed mine hoisting packages for use in the underground mining and heavy civil industries. Our design-build-install capabilities solidify our position as the premiere supplier of turn-key hoisting systems throughout the Americas.
