— Medium oxygen enriched blast furnaces that utilize reducing gas injections are a feasible new ironmaking process that can significantly reduce the coke ratio and carbon dioxide emissions To better inject the reducing gas into the blast furnace two injection methods were designed in this study and the effects of the reducing gas on the
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— Compared with traditional combustion the difference of physical properties between CO 2 and N 2 makes the ignition of pulverized coal unstable in oxy fuel combustion [43] The oxygen concentration had been tried to be increased [29 [44] [45] [46]] to improve the ignition on this idea Niu et al [28] believed that 10% oxygen
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— 1 Introduction Flame stability in pulverized coal combustion is becoming increasingly an area of concern due to the trends of extending the use of low quality coal and coal blends in existing power industries [1] An unstable flame can cause many combustion problems such as furnace vibration low combustion efficiency high NOx
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— Pulverized coal burner is a new kiln heating equipment with many advantages such as high heat utilization rate energy saving & environmental protection It is suitable for various annealing furnaces metal heating furnaces quenching furnaces melting furnaces forging furnaces and other related heating furnaces The coal burner fits the
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The HGI has significant influence on energy consumption and wearing of the crushing and milling equipment For coal gangue with low HGI comminution is difficult and energy consumption is high In pulverized coal PC combustion systems fuel has to be ground to ca 75 µm [9] Therefore coal gangue is not suitable for PC combustion owing to
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Pulverized Coal Injection PCI using the dense flow method The Küttner developed and perfected dense flow method offers several advantages over a lower density system Higher injection rates are achieved with simultaneously lower coke rates which can optimize the fuel costs of the blast furnace
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— Alstom s Limestone Chemical Looping LCL process has the potential to capture CO{sub 2} from new and existing coal fired power plants while maintaining high plant power generation efficiency This new power plant concept is based on a hybrid combustion gasification process utilizing high temperature chemical and thermal looping
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The majority of worldwide power boilers use pulverized coal Stock High Pressure Gravimetric Feeders reliably and accurately deliver raw coal to each pulverizer in exact response to boiler fuel demands schenck process group Stock Equipment Company is the global market leader of solutions for the power industry supplying complete bulk
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— The purpose of this work was to propose an optical measuring system for pulverized coal combustion and to develop an ancillary image processing method to ensure the reliability of the results The particle tracking image pyrometer PTIP system proposed in this work was mainly composed of a high resolution high speed camera and a digital SLR
— The TPP equipment intended for receiving supplying conditioning and burning fuel is designed or upgraded in the process of operation to use coal with certain characteris tics and properties Its performance is affected by a large number of parameters and coal properties For a specific equipment any such factor can limit the applicability
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— 1 Introduction Under the background of carbon neutrality the deep peak shaving and flexible operation of coal fired generating units led to a decrease in unit stability[1] which put forward urgent requirements for real time monitoring of the three dimensional combustion conditions in the furnace [2] The combination of artificial
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Intelligent circle and line detection based on Hough transform is applied to obtain the background template of the raceway image The merged local segmentation algorithm is used to obtain the regions of pulverized coal and particles The mass flow of PCI is characterized by the coal feature calculated by the linear weighted method
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