The dry production design is adopted, but the production line is equipped with environmental protection devices such as dust removal and silencer, which effectively reduce pollution such as dust and noise, fully comply with national environmental protection standards, easily pass environmental impact assessment standards, and achieve both economic and environmental benefits.
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The 200-ton granite crushing and sand making production line solution adopts the overall operating principle of "more crushing and less grinding", and has the characteristics of high efficiency and good finished products.
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On site, only the road surface requires leveling and compacting to establish working conditions, eliminating the necessity for cement foundation leveling and hardening. This significantly reduces the project's construction material costs.
The iron ore is evenly fed by TSW1139 feeder into HJ98 high-efficiency jaw crusher for coarse crushing. After that, the materials would be sent into CS160 cone crusher for secondary crushing.
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— The safety of tailings ponds is considered to be one of the greatest environmental challenges in the field of energy and mining engineering Impacted by factors such as rainfall infiltration recycling water dry beach face evaporation tailings sands close to the saturation line in tailings ponds are subject to frequent dry wet DW cycles DW
Tailings are found during the exploration and processing of mineral ores They contain a mixture of grounded rocks processed effluent and some trace elements that have the potential to damage the environment Recent urbanisation has led to a large stockpile of tailings in many mining environment constituting health hazard It becomes very important
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— Eectively and judiciously utilizing tailings while reduc ing their surplus constitutes a common research focus among researchers Various applications for tailing sand in the realm of engineering construction have been pro posed—for instance in the preparation of Portland cement clinker Young and Yang 2019 ; using tailing sand as
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— This study reviews the fine aggregate conventional Sand replacements such as Waste Foundry Sand Graphite Tailings Low Density Polyethylene Ceramic Wastes Fly ash Bottom Ash Expanded
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— Calculated based on the production of barrels of mature fine tailings per barrel of bitumen R J Mikula V A Munoz and O Omotoso Water Use in Bitumen Production Tailings Management in Surface Mined Oil Sands presented at the World Heavy Oil Congress Edmonton AB 2008 and the production of 841 000 barrels of
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— This paper focuses on the disposal of iron tailings sand ITS and recycled aggregate of inorganic RAI and proposed the ITS plus RAI solid waste treatment methods which uses ITS and RAI
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2 — In Alberta legislation plans frameworks and directives guide tailings management to supporting oil sands development while protecting the environment Furthermore the AER conducts compliance monitoring throughout the development life cycle of an oil sands mine to ensure tailings production and management go as planned
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ARTICLE Failuresofsandtailingsdamsinahighlyseismiccountry GabrielVillavicencio RaúlEspinace JuanPalma AndyFourie andPamelaValenzuela
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— Tailings have been widely used in engineering construction in the form of tailings sand [19] [20] which is due to the following characteristics 1 the fineness modulus of tailings sand mainly in the range of is similar to fine and ultra fine natural sand [21]; 2 the apparent density of tailings sand ranging from 2600 to 3200 kg
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— Iron tailing is a kind of mineral waste from industrial processing and magnetic separation of iron ore which severely pollute the air soil property and the source of water For large scale tailing ponds dam height >100 m the accident could cause a substantial damage Therefore it is significant to appropriately utilize the tailings The
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— Sample and test equipment According to the requirements of the ASTM D422 63 specification ASTM D422 2007 to carry out particle analysis and specific gravity tests two kinds of tailings sand samples will be dried and content of tailings fine sand with particle size less than mm is % the nonuniformity coefficient C u is
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Semantic Scholar extracted view of "Critical State Liquefaction Assessment of an Upstream Constructed Tailings Sand Dam" by C Anderson et al Skip to search form Skip to main content Skip to account menu Semantic Scholar s Logo Search 221 033 187 papers from all fields of science Search
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— 1 Introduction The typical deposition of lead zinc tailings sand LZTS is in the form of tailings pond causes a range of issues [1] such as the depletion of land resources [2] [3] damage to soil structure [4] groundwater pollution [5] and increase in particulate matter value [6] Statistically lead zinc mines around China yielded
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The results show that the tailings sand sample has rich pore development and good pore connectivity The porosity of the 1000 layer two dimensional section of the tailings sand sample changes obviously but the porosity shows an increasing trend The variation range is from % to % The average value is %; the pore distribution of
1 Introduction Molybdenum tailings MoT are solid waste generated after the beneficiation of molybdenum ore As of 2023 China s reserves of molybdenum metal ore amount to million tons [1] Due to the increasing annual extraction of molybdenum ore a large quantity of MoT sand is generated
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— In order to understand the influence of reinforcement layers on the mechanical properties of tailings sand with mud interlayers tailings sand from a tailings pond in Yunnan were used as the main experimental material and mesh glass fiber was used as the reinforcement material The effects of reinforcement density and reinforcement
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— A detailed search and re evaluation of the known historical cases of tailings dam failure was carried out A corpus of 147 cases of worldwide tailings dam disasters from which 26 located in
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— The purpose of this research is to determine how well sand can stand in as a partial substitute for iron ore tailings without negatively impacting the microstructure strength or durability of concrete The concrete mix is designed as 1 cement sand coarse aggregate with a water to cement ratio W/C of
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— The presence of lenses such as tailings slurry frozen soil and saturated zones disrupts the continuity of tailings dams and their normal seepage patterns elevating the seepage line of the dam body and significantly impacting local stability This study to investigate how lenses affect the stability and failure mechanisms of tailings dams
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— The Oil Sands Research and Information Network commissioned BGC Engineering Inc to conduct a review of 34 oil sands tailings technology options BGC s report provided an overviewof oil sands
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— The test results show that with the increase of tailings sand content the mass attenuation coefficient of mortar increases gradually and the shielding performance is better The simulated value and experimental value have Good consistency; the mortar strength prepared with lead zinc tailings will decrease with the increase of tailings sand
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— CCTSCs were essentially made with a systematically merged combination of tailings binding and tap water 6 groups of experiments were set up according to different proportions of tailings and sand and the material consumption is shown in Table concentration is set to 80w% cement/solidity sand tails ratio c/s is 1 3 and TR is set
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The results show that the tailings sand sample has rich pore development and good pore connectivity The porosity of the 1000 layer two dimensional section of the tailings sand sample changes obviously but the porosity shows an increasing trend The variation range is from % to % The average value is %; the pore distribution of
— 1 Introduction The typical deposition of lead zinc tailings sand LZTS is in the form of tailings pond causes a range of issues [1] such as the depletion of land resources [2] [3] damage to soil structure [4] groundwater pollution [5] and increase in particulate matter value [6] Statistically lead zinc mines around China yielded
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However its field application in tailings sands is limited due to the poor adaptability of non native urease producing bacteria UPB in different natural environments In this study the ultraviolet UV mutagenesis technology was used to improve the performance of indigenous UPB sourced from a hot and humid area of China
— 1 Introduction The typical deposition of lead zinc tailings sand LZTS is in the form of tailings pond causes a range of issues [1] such as the depletion of land resources [2] [3] damage to soil structure [4] groundwater pollution [5] and increase in particulate matter value [6] Statistically lead zinc mines around China yielded
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— Ecological engineering of tailings has been advocated to change tailings mineralogy improve physicochemical properties and accelerate soil formation pedogenic processes allowing the re colonisation of microbial communities and pioneer plant species Huang et al 2012 These early settlers in turn act as powerful biological
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— Tailings management regulations Directives 074 and 085 were put into place as a response to increasing concerns over the risks and uncertainties associated with tailings ponds management and increases in oil sands tailings inventory Alberta Energy Regulator 2009 2017 Since then oil sands operators have attempted to reduce tailings
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