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[Introduction] In order to analyze the reasonbility of the fan configuration of a 350 MW supercritical heating unit. [Method] In this paper, the single-row configuration and double-row fan configuration was compared, it took the reliability of fans, the requirements of engineering heating and minimum annual fee method into congsideration. [Result] The results demonstrate that the unstopped reliability rate of single-row fan configuration is slightly lower than double-row fan configuration. However, under the condition of high load operation, the heating supply reliability of single-row fan is higher.Single-row fan configuration econmic advantage is obvious.Therefore, it is more reasonable to adopt single-row fan for heating units which operats under high load operation for a long time. [Conclusion] The conclusion of this study is not only applicable to this project, but also can provide guidance for other heating unit.

[Introduction] Coal blocking of pulverizing system is a big problem in power plant, especially for coal bunker. At present, there are many types of anti-blocking coal technologies on the market, but there are different opinions on the use effect. This paper aims to find a useful technology to prevent the coal anti-blocking. [Method] The paper studied the coal blocking reasons and same anti-blocking technologies, such as hyperbolic coal hopper, stainless steel hopper, hydraulic split board damper, reasonable design of falling coal pipe etc. The research focused on the technology of rotary blockage clearing machine. [Result] The results show that the technology has obvious effect on solving the problem of coal plugging in the coal bunker. But there are lubricating oil leakage at the joints between the static and dynamic parts, which shall be paid more attention on sealing selection. [Conclusion] The rotary blockage clearing machine technology in various anti-blocking coal technologies has obvious advantages and is worthy of popularization.The prevention of coal plugging in the pulverizing system is a comprehensive project. Regardless of the technology used, it is necessary to strengthen the scientific management of the coal source and coal yard to achieve the control of the moisture and viscosity of the coal into the furnace.

A 150-day experiment was performed to investigate the stimulatory effect of a promising phytoremediation strategy consisting of Suaeda heteroptera (S. heteroptera), Nereis succinea (N. succinea), and oil-degrading bacteria for cleaning up total petroleum hydrocarbons (TPHs) in spiked sediment. Inoculation with oil-degrading bacteria and/or N. succinea increased plant yield and TPH accumulation in S. heteroptera plants. The highest TPH dissipation (40.5%) was obtained in the combination treatment, i.e., S. heteroptera + oil-degrading bacteria + N. succinea, in which the sediment TPH concentration decreased from an initial value of 3955 to 2355 mg/kg in 150 days. BAF, BCF, and TF confirmed the role of N. succinea and oil-degrading bacteria in the amelioration and translocation of TPHs. In addition, TPH toxicity of S. heteroptera was alleviated by N. succinea and oil-degrading bacteria addition through the reduction of oxidative stress. Therefore, S. heteroptera could be used for cleaning up oil-contaminated sediment, particularly in the presence of oil-degrading bacteria + N. succinea. Field studies on oil-degrading bacteria + N. succinea may provide new insights on the rehabilitation and restoration of sediments contaminated by TPHs. Our study attempted to investigate the stimulatory effect of a promising phytoremediation strategy consisting of Suaeda heteroptera (S. heteroptera), Nereis succinea (N. succinea), and oil-degrading bacteria for cleaning up TPH in spiked sediment. Planting S. heteroptera can greatly increase sediment TPH removal, and its removal was enhanced greater after inoculation with oil-degrading bacteria and/or N. succinea. Moreover, the promising phytoremediation strategy developed in the current work can serve as an efficient, novel approach to removal TPH in sediment/soil. In our opinions, these findings provide insights into the assessment of their ecological risks in the environments that are of interest to broad readership of International Journal of Phytoremediation. [ABSTRACT FROM AUTHOR]

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