— 1 Forging hammerhead The forged hammerhead is suitable for crushing pebbles coal gangue limestone etc The forging crusher hammerhead is made of high quality train wheel hub steel 65Mn which has good impact resistance strong toughness good wear resistance and is not easy to break
— Coal gangue CG is a type of industrial solid waste produced by the process of coal excavation and separation 1 2 3 Generally one ton of CG is discarded for every 10 tons of produced coal 4 5
Yêu cầu trực tuyến →
— In Fig 1 the mined raw coal is transported by tram to the screening workshop where the screened product is then placed in a fine ore product on the screen is crushed by a jaw crusher to a qualified particle size and then deposited in a buffer ore bin The raw coal is then conveyed to the ore feeder through the bucket feeder and
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— Data enhancement methods need to be carefully considered and studied for the widespread application of machine vision and deep learning in the mining field Generative adversarial networks GANs prove successful at generating data However training a high resolution image generation network depends on a large scale dataset
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— Therefore a specially designed jaw crusher was used to crush the coal gangue In addition two stages of crushing were needed before the coal gangue particle size reached the required size range <25 mm [34 35] In the first stage the coal gangue was crushed from the maximum particle size of 300 mm to 50 mm
Yêu cầu trực tuyến →— Process of filling goaf with coal gangue slurry The process of filling goaf with coal gangue slurry is shown in Fig the coal gangue is crushed by a multi stage crusher and enters
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— The coal gangue in China is the core field of bulk solid waste comprehensive utilization due to its massive stock and emission high concentration of output small proportion of high value added utilization and outstanding environmental impact Hence the prospect of resource utilization of coal gangue is broad The existing
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2 — 1 Crushing The large pieces of coal are sent to the jaw crusher by the vibrating feeder for rough crushing and the conveyor transports the coarsely crushed materials to the impact impact crusher is suitable for medium or fine crushing to further dissociate clean coal 2 Screening Thevibrating screen screens out three kinds of
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— Coal gangue piles accumulate outside mines and can persist for years negatively impacting the regional environment GB/T 17136 1997 g soil samples were wetted with a small amount of
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— 1 Introduction Coal gangue CG is a solid waste produced during coal mining The annual emission of CG worldwide is about 1 billion tons and is usually piled up in a large area and difficult to utilize [[1] [2] [3]] Valuation and reuse of coal mine waste is an alternative approach to solving the mine waste problem
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— The laboratory crusher was used to crush the gangue particles and then sieving gave five particle size intervals 0 5 mm 5 10 mm 10 15 mm 15 20 mm and 20 25 mm ; for the compaction of crushed gangue the absence of small particle size in the grading structure has much greater influence than the absence of intermediate
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Crusher machines come in a wide variety of sizes and capacities from small jaw crushers that cost the same as a new truck to extra large cone crushers that cost millions of dollars which is suitable for screening materials of various nature as well as coal gangue coke slaked lime and other materials that are wet and easy to block
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— The calorific value of the coal gangue was increased from about 1500kcal/kg to 4800 kcal/kg by the separation process And about 30% product yield was obtained by the separation process The small coal preparation plant was designed according to the requirement of the Mining Group and the local power plant The project not only improved
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