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A New System to Evaluate Comprehensive Performance of Hard-Rock Tunnel Boring Machine Cutterheads
Chinese Journal of Mechanical Engineering, 2019 The accurate performance evaluation of a cutterhead is essential to improving cutterhead structure design and predicting project cost. Through extensive research, this paper evaluates the performance of a tunnel boring machine (TBM) cutterhead for ...
Ye Zhu +3 more
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Experimental Study on The Synthetic Effects of Kaolin and Soil on Alkali-induced Slagging and Molten Slagging [PDF]
, 2014 With the depletion of fossil fuel, the exploitation and utilization of biomass have attracted attention widely. Unfortunately, high concentrations of alkali metals, especially K, in biomass result in serious slagging.
Niu, Yanqing +4 more
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Coal Slagging and Reactivity Testing [PDF]
, 2003 Union Fenosa's La Robla I Power Station is a 270-MW Foster Wheeler arch-fired system. The unit is located at the mine that provides a portion of the semianthracitic coal. The remaining coals used are from South Africa, Russia, Australia, and China.
Laumb, Jason D. +2 more
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Research and diagnosis of local slagging in boilers based on impact signal
Zhejiang dianli, 2022 In view of widespread slagging on heating surfaces of boilers in power plants， the paper introduces a piezoelectric acceleration sensor for slag impact signal measurement to determine the size and position of the impact of slag on the water wall of the ...
YUAN Shengming +5 more
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Penetration of a Pulsed Gas Jet through a Package of Heat Exchange Tubes
Aerospace, 2022 The slagging of heating surfaces by fly ash significantly complicates the long term operation of solid-fuel boilers. Gas pulse technologies offer a potentially convenient, inexpensive, yet efficient way for online slag deposits removal.
Valery Zvegintsev
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Slag Characterization: Viscosity of Synthetic Coal Slag in Steam
, 1980 A rotating cylinder apparatus has been designed and constructed for measuring the viscosity of molten slags under steam pressure in the range 15 to 300 psi and up to about 1400/sup 0/C. Two synthetic coal slags, one high in alkali and the other lower in alkali but higher in calcia were studied with this apparatus.
W S Brower, J L Waring, D H Blackburn
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发电技术, 2022 Zhundong coal is rich of alkali metals, and coal ash contains large amounts of Na and K element, which can easily lead to slagging and contamination problems, and affect the normal operation of the boiler.
WANG Hongjian +5 more
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Reli fadianA field test and numerical simulation study is carried out on the slagging problem of a 1 000 MW double-tangential coal-fired boiler during the co-firing of high ash melting point coal and low ash melting point coal.
LI Yuan +8 more
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发电技术, 2018 In order to study the slagging reason of a 600 MW supercritical W-flame boiler, a test study is carried out. The content includes the slagging position detection, gas composition measurement, the temperature distribution measurement and numerical ...
Pengzhi XU +5 more
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Modification of Copper Slag Using Steel Slag and Magnesium Slag Additives
MetalsSignificant amounts of smelting slag are generated during the production of steel, refined copper, and refined magnesium. These slags contain abundant valuable metallic elements, such as Fe, Cu, Zn, Co, and Mg, that have not been fully utilized in the past.
Zeng, Yahao +5 more
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