Dynamic Properties of Chain Drive in a Scraper Conveyor …
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 …
Article A Big Coal Block Alarm Detection Method for …
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 ...
Multi-Body Dynamics and Vibration Analysis of Chain …
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 …
Coal Scraper
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.
Contact Analysis of Chain Drive in Scraper Conveyor
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 ...
Wear Analysis for Ring Chain of a Heavy-Load Scraper Conveyor …
Abstract The wear characteristics and related mechanisms of the ring chain of a scraper chain were investigated. Multiple sets of wear tests were performed to simulate the working environment of a heavy-load scraper conveyor. The wear characteristics of the ring chain in different environmental media (acid, alkaline, neutral …
Discrete Element Method- (DEM-) Based Study on the …
MathematicalProblemsinEngineering T ˘ˇ : Intrinsicparameters. Intrinsicparameters Density(kg/m ) Poisson'sratio shearmodulus(Pa) Coal.× 8 NMwear-resistantsteel .
Applied Sciences | Free Full-Text | A Scraper Conveyor Coal …
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 …
Screening the Main Factors Affecting the Wear of the Scraper Conveyor …
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 abrasive wear situations is primarily ...
Volumetric Tooth Wear Measurement of Scraper …
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 ...
Application of DEM in Coal and Agricultural Machinery
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 …
Coal Conveyors | Conveyor Belts for Coal Handling
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 transporting efficiency and mechanical behavior …
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. …
Discrete Element Method- (DEM-) Based Study on …
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 …
(a) Fully mechanized mining equipment in coal mine and
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 ...
The prediction of wear on a scraper conveyor chute …
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.
Dynamic characteristics of scraper conveyor …
Long-wall comprehensive mining face mainly consists of coal mining machine, scraper conveyor, hydraulic support and other auxiliary equipment, and …
A Scraper Conveyor Coal Flow Monitoring Method …
Based on engineering experience, we have obtained a reasonable coal flow rate of 2.5 m scraper conveyor coal should not exceed 2 m3, and finally 2 m3is used as the warning threshold in this paper. As can be seen from Figure 14, there are three abnormal coal flows in the scraper conveyor within ten minutes.
Dynamic characteristics of scraper conveyor chain …
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 …
Efficiency Boost: Coal Mining Conveyor Belt Systems
The Role of Conveyor Belts in Coal Mining. The coal mining conveyor belt stands as a pivotal component in the infrastructure of coal mining operations, serving as the lifeline that ensures the seamless flow of coal from the depths of mines to the surface for processing or storage. This system not only streamlines the transportation of …
Study on the rigid-discrete coupling effect of scraper conveyor …
The formation of three-body wear of scraper conveyor parts requires certain postural conditions. When the scraper (chain)-coal-deck plate (chute liner) forms a particle stagnation state, severe wear occurs on the parts. The orientation of the particles can change during transportation, thereby increasing or decreasing the wear rate.
(PDF) Volumetric Tooth Wear Measurement of Scraper Conveyor Sprocket
A shape from focus-based method is used to measure scraper conveyor sprocket tooth wear. This method reduces the complexity of the process and improves the accuracy and efficiency of existing methods.
Scraper Conveyor Series Product Catalogue
4"/:* scraper conveyor series product 26"-*5: $)"/(&4 5) ... sole enterprise supplying coal mining machine, support, and scraper conveyor in the industry and its highly integrated, modularized, and automated products ... Special optimized tooth profile and material with >12mm wear-resistant layer. 4. The medium plate is installed with …
(PDF) Discrete Element Method- (DEM-) Based Study on the Wear …
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.
Analysis of the Bulk Coal Transport State of a Scraper Conveyor …
A scraper conveyor is the main transport equipment in a coal mine, and its condition considerably influences the production capacity and profitability of the enterprise. In this study, the ...
Rationale for the efficient design of a face scraper-type cutting conveyor
The article considers mechanized underground coal mining efficiency improvement by providing rationale for the efficient design of face scraper conveyors (FSC). It is shown that the creation of ...
Study on Wear of Scraper Conveyor Chute
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 …
Study on Wear of Scraper Conveyor Chute
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 …
Development and prospect on fully mechanized mining in Chinese coal
Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years. At present, the output of a FMM face has reached 10-million tons with Chinese-made equipment. In this study, the new developments in FMM technology and equipment in Chinese coal mines during past decades are introduced. …
[PDF] Contact Analysis of Chain Drive in Scraper Conveyor …
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 …