Traditional alloy steel scrapers, as one of the main components of the scraper conveyor, are disadvantageous in that they are not only vulnerable to failures such as fracture and wear, but also ...
Coal conveyors are very important to handle bulk coal in industries of underground and open pit coal mining, coal washing, coal preparation, coking, sintering, smelting, thermal power, etc. The coal conveyors can be fixed and movable. For many years, we have helped our customer build many customized coal conveyor belt systems.
The wear of the middle trough of coal mine scraper conveyor, is a common fault of scraper conveyor. Starting with the causes of wear by analyzing the structure …
Long-wall comprehensive mining face mainly consists of coal mining machine, scraper conveyor, hydraulic support and other auxiliary equipment, and …
DOI: 10.20858/sjsutst.2024.122.16 Corpus ID: 268540292; PROBLEMS OF WEAR OF THE CHAINS USED IN MINE SCRAPER CONVEYORS, CAUSED BY FRICTION AND CORROSION @article{Wieczorek2024PROBLEMSOW, title={PROBLEMS OF WEAR OF THE CHAINS USED IN MINE SCRAPER CONVEYORS, CAUSED BY FRICTION AND …
Design/methodology/approach. This paper investigated friction and wear of the middle trough in a scraper conveyor under different media. Lignite, coking coal and anthracite were selected media, and middle trough wear was maximum for anthracite and minimum for lignite, with coking coal being intermediate.
Gong SF, Yang N. Research on sliding mode control technology in chain tension of scraper conveyor of coal mine. Int J Control Automat 2016; 9: 123–126. …
Scraper conveyor is the most important transportation equipment in the comprehensive mining equipment, and the chain drive system is its core subsystem, its dynamic characteristics will significantly affect the efficiency of coal transportation in the …
During long-term operation, the scraper conveyor chute is seriously attrited by the friction of coal, gangue, and scraper chain. In this study, the discrete element method was applied to establish the bulk coal–scraper conveyor interaction analysis model to predict the wear of a scraper conveyor chute during the transporting process.
The wear of scraper conveyor chute causes both significant economic and environmental losses by shortening the service life. The life of the chute under coal …
In modern coal mining, the conveyor transports coal and provides hydraulic support and a walking track for the shearer. Therefore, its reliability directly affects the safety and production efficiency of modern coal mines. Sprockets are the core components of the chain drive system, which is the most important subsystem in the scraper conveyor ...
Xia et al. combined the DEM with the wear model, studied the wear mechanism and wear law of the central groove by observing the change of coal particle position during the wear process, and predicted the central groove of the scraper conveyor under various working conditions and bulk wear under coal characteristics …
Results showed that the section near the coal falling point underwent more intense collisions and impact and, thus, the wear was more serious at this location. The …
The scraper conveyor is the key conveying equipment for fully mechanized coal mining. Wear failure of the chute is the main form of failure of the scraper conveyor. In this study, the discrete element …
Aiming at the problem of serious shutdowns of conveyors caused by abnormal coal flow of scraper conveyors, a coal flow monitoring method based on speckle structured light is proposed. The point cloud data of the coal body on the scraper conveyor is collected through the speckle structured light acquisition system. Then, the …
The flexible scraper conveyor is allowed to bend 2°～4° in the horizontal and vertical directions. Conventional model Scraper Conveyor has the following requirements for the conveyed materials: 1. Material bulk …
In the coal mining process, the scraper conveyor will face the complex working condition of the middle chute bending, which is caused by fluctuation of the terrain under the scraper conveyer's bottom plate and the hydraulic support pushing the scraper conveyer's middle chute [9,10].The large coal cut by a shearer causes a dynamic load …
High Wear Resistant Coal Mining Belt Conveyor Underground Mining Scraper. US$ 380-400 / Piece. 1 Piece (MOQ) Shanxi Betop Industry and Trade Co.,LTD. ... Height Coal Mining Adjustable Conveyor Belt Scraper Material US$ 35-150 / Piece. 50 Pieces (MOQ) Kunshan SIMA Conveying Equipment Co., Ltd. View larger video & image.
scraper conveyor is one of the most critical equipment in coal mining machinery. The middle groove is the main part of the scraper conveyor, and as a consumable part of the scraper conveyor, its reliability has an important influence on the life and reliability of the scraper conveyor [2].
The chain drive system is the most important subsystem in a mining scraper conveyor. Compared with the general chain drive system, that in a scraper conveyor is highly coupled. The rings on a chain come in contact not only with the sprocket wheels but also with the central chutes and scrapers. In order to improve the reliability of the scraper …
The formation of three-body wear of scraper conveyor parts requires certain postural conditions. When the scraper (chain)-coal-deck plate (chute liner) forms …
Results showed that the section near the coal falling point underwent more intense collisions and impact and, thus, the wear was more serious at this location. The wear loss decreased with the increasing distance away from this point. This research can be used for predicting the wear of a scraper conveyor working under different mines.
belt conveyor [9]. Therefore, the detection of coal flow of the scraper conveyor is one of the hotspots in the current research of relevant scholars. To meet the needs of high-precision monitoring of coal flow in mine scraper conveyors, this paper proposes an accurate and economical monitoring method based on binocular speckle …
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WEBLianhang, X. & Hunjun, L. Analysis on breaking causes of middle Pans of scraper conveyor in fully-mechanized high cutting coal mining face. Coal Sci. Technol. …
With the intensification and large-scale of coal mining, scraper conveyors are developing towards high power, large volume, long haul distance and high reliability. ... The wear of scraper ...
West River Conveyors is proud to offer a wide selection of high-quality primary and secondary belt scrapers from Martin Engineering. These scrapers ensure thorough cleaning of conveyor belts, maximizing efficiency and minimizing maintenance requirements. We offer several models tailored to meet the specific needs of your …
Mining scrapers as an important part of scraper conveyors are highly prone to wear and fatigue failure. A new scraper capable of turning sliding friction into rolling friction was designed to ...
Study on Wear of Scraper Conveyor Chute. Coal mine scraper conveyor 16Mn steel middle groove wear failure analysis [J]. Special steel, 2003 (11):p.43-44 [5] Liang Lixun. The scraper conveyer in the development of modified MC nylon [J] .central groove. The engineering plastics application, 2002 (2),p.36 -38 [6] Pei Zhongai,Wang Rongjie.
For armoured face conveyors (AFC) in coal mines, fracture and jam phenomena of the chain are common failure patterns in the chain assembly. These failure patterns are caused by chain's severe vibrations from uneven loads on the conveyor. However, due to limitations of harsh operating environment in coal mines, performing …
The wear of the middle trough of coal mine scraper conveyor, is a common fault of scraper conveyor. Starting with the causes of wear by analyzing the structure and the working condition of the chute, it indicates that the friction is the main cause of the chute wear, and abrasive wear, adhesive wear, fatigue wear and corrosion wear are the main …
The content of coal gangue in raw coal is about 25%. The modified medium manganese austenitic steel (MMAS) and martensitic wear-resistant steel (MWRS) plates were used in the middle and bottom plates of SGZ1000/2000 front scraper conveyor, SGZ1200/2000 rear scraper conveyor and SZZ1350/700 conveyor transfer machine. …
Correspondence: [email protected]. Abstract: With the aim of solving the problem of coal congestion caused by big coal blocks in un-derground mine scraper conveyors, in this paper we proposed ...