灰水中悬浮物对COD影响的初步研究

本文在实测电厂灰水中悬浮物和COD的基础上。针对悬浮物对COD的影响。通过对灰水的过滤、澄清、混匀试验以及粉煤灰对COD的降解试验,探明了灰水中COD的超标原因并提出治理措施.     

贮灰场与环境保护

本文介绍火力发电厂贮灰场的灰渣和灰水影响环境的种种现象。在总结以往贮灰场设计、施工和运行管理经验的基础上,提出了灰场设计应采取的环境保护措施。     

金竹山电厂灰水砷分布规律探讨

对金竹山火电厂锅炉干式旋风子除尘器、文丘里水膜除尘器以及电除尘器,水力冲灰方式排出的灰水,进行了灰水中砷含量测试,以及干灰的浸取试验,探讨了砷的分布规律,以及灰水中砷超标原因。     

火电厂灰场扬尘治理

本文介绍了国内外有关火电厂灰场扬尘治理技术的研究及应用现状以及我所对这项技术的具体研究成果。针对我国灰场的具体情况，对不同类型灰场的扬尘治理提出了具体建议。     

灰场回水减少的原因分析及对策

针对老燃煤发电厂贮灰场回水逐年减少的状况，采取了在贮灰场水面上安装可移动式漂浮筏的措施，作为灰场回水取水的漂浮泵站，增加了灰场回水流量，解决了因回水不足而使用水库水作补水的问题。     

灰场排水自动加酸处理设施

介绍了马鞍山二电厂灰场排水加酸处理设施改造工程,指出合理选择酸与水的混合方式,加装控制灰水外排的蝶阀,以及采用计算机处理和变频技术,可以较好地使灰水达标排放。     

灰场种植柳树的研究

地处北方干旱地区的电厂堆高式灰场,由于灰田漏水、漏肥严重,不适宜种植粮食蔬菜等作物。太原第二热电厂在灰场上种植的柳树比附近土壤上种植的柳树成长发育好。本文介绍种植柳树的技术与管理措施。     

特殊地形地貌区燃煤电厂灰场防渗对策

结合环评实例，介绍了位于特殊地形地貌区燃煤电厂灰场的防渗对策，主要包括位于风化灰岩区、喀斯特地貌区和湿陷性黄土区灰场的防渗措施，从而为特殊地貌区灰场周边水资源保护提供借鉴。     

气力输灰系统控制系统的探讨

以国电宝鸡电厂5号机组为例，讨论了气力输灰控制系统的基本原理及调试输灰和自动排堵过程中反复出现的问题，并提出了相应解决措施，为存在此类问题的其他电厂提供参考。     

燃煤电站SCR脱硝系统预防大颗粒灰堵塞方法

大颗粒灰特别是爆米花灰的堵塞,是导致高尘布置的选择性催化还原（SCR）系统失去脱硝作用的主要原因之一,同时大颗粒灰堵塞催化剂床层严重影响锅炉主机的安全稳定运行。介绍了国外发达国家和地区的应对措施及先进技术,同时例举了国内外成功的工程案例,为预防大颗粒灰堵塞提供有益借鉴。     

火电机组状态及性能全息诊断系统技术及应用

阐述了火电机组状态及性能全息诊断系统的技术原理、系统结构及应用情况。该系统以解决机组应用性能问题为目标,采用状态空间分析模型,具备多层次分析的运行操作指导,基于性能渐变特性的设备状态检修,包括分散度在内的运行指标考核以及定期的节能潜力诊断等功能,在10余家电厂44台近1500万kW机组上取得了供电煤耗平均降低1.5～3.5g（标煤）/kW.h的节能效果。     

Leaching characteristics of woody biomass ash after low-temperature combustion

The leaching properties of trace elements in wood ash were examined to evaluate the safety of using woody biomass ash. Boron and selenium were detected in high concentrations not only in ash collected from an electric furnace but also in combustion ash from a small wood stove. As for the leaching of trace elements, the influence of calcium compounds on boron and selenium in wood ash is proposed. The leaching of trace elements is enhanced when calcium carbonate is the calcium compound in ash, although it is inhibited in the case of portlandite. There is little information in the literature that can be used to determine the effective use of wood biomass ash, thus limiting the development of woody biomass for applications such as thermal power generation.     

在线飞灰测碳仪在燃煤锅炉中的应用

介绍了在线飞灰测碳仪工作原理和系统结构，通过其在中石化某自备电厂燃煤锅炉的实际应用，说明了燃煤锅炉使用在线飞灰测碳仪后，锅炉司炉能随时掌握飞灰含碳量波动情况，及时调整风粉比，合理控制飞灰含碳量指标，从而降低了发电成本，提高了机组运行的经济性。     

The mild hydrothermal synthesis of hydrogrossular from coal ash

In this study, an attempt was made to synthesize hydrogrossular, a group of garnet minerals, under hydrothermal conditions at temperatures below 180°C, using coal ash, which is the solid waste from thermal power plants, as a starting material. A single phase corresponding to hydrogrossular was found at around 120°C, and the hydrogrossular coexisted with 11-Å tobermorite above 140°C. The hydrogrossular phase decreased with increasing reaction temperature, while that of 11-Å tobermorite increased concurrently. The physicochemical properties of the hydrogrossular obtained from the hydrothermal synthesis was characterized by X-ray diffraction thermogravimetry/differential thermal, analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray fluorescence spectroscopy. Received: September 4, 2000 / Accepted: March 7, 2001     

Sintering characteristics of CaO-rich municipal solid waste incineration fly ash through the addition of Si/Al-rich ash residues

Thermal treatment is a promising technology for the fast disposal of hazardous municipal solid waste incineration (MSWI) fly ash in China. However, fly ash produced in grate incinerator (GFA) is rich in CaO and chlorides, which promote the formation of toxic hexavalent chromium [Cr(VI)] and ash agglomeration during the thermal process, inhibiting the thermal disposal of GFA. In this study, sintering characteristics of CaO-rich GFA were improved by adding Si/Al-rich MSWI ash residues. According to the results, ash agglomeration was well suppressed during thermal treatment of the mixed ash. Si/Al/Fe-compounds competed with un-oxidized Cr-compounds to react with CaO and suppressed Cr(VI) formation. Meanwhile, chlorides in GFA facilitated heavy metal volatilization from added ashes to the secondary fly ash, favoring the recovery of these metals. Ca-aluminosilicates was found as the main mineral phase in the thermally treated mixed ash, which has attractive potential for applications. The formation of the aluminosilicates made the heavy metals that remained in the treated mixed ash more stable than the thermally treated single ash.     

电除尘器节能控制技术在600MW机组上的应用

结合华能汕头电厂3号炉600MW机组电除尘器节能改造实践,从电控角度总结了电除尘器节能保效技术在火电厂的应用,检测结果表明,改造后的节电率超过70%.     

我国“十一五”火力发电企业关停容量及节能分析与建议

从我国节能减排的政策出发，分析了“十一五”期间我国已关停的小火电机组容量、机组装机范围、企业分布等特征，以及其节能降耗与环保效果。预测了“十一五”关停小火电机组容量，并提出了相关建议。     

Use of rubber and bentonite added fly ash as a liner material

In many countries regulations require all hazardous waste disposal facilities to be lined with suitable impermeable barriers to protect against contamination. In this study, a series of laboratory tests on rubber and bentonite added fly ash were conducted. The aim of the tests was to evaluate the feasibility of utilizing fly ash, rubber and bentonite as a low hydraulic conductivity liner material. Type C fly ash was obtained from Soma thermal power plant in Turkey; rubber in pulverized form was waste from the retreading industry. To investigate the properties of rubber and bentonite added fly ash, hydraulic conductivity, leachate analysis, unconfined compression, split tensile strength, one-dimensional consolidation, swell and freeze/thaw cycle tests were performed. The overall evaluation of results have revealed that rubber and bentonite added fly ash showed good promise and a candidate for construction of a liner.     

我国大型火电机组FGD未来发展方向探讨

针对大型火电机组FGD未来发展方向,对我国近年来火电厂烟气脱硫标准及FGD技术发展进行了回顾、分析,结论是随着国家环保标准的不断提高,必须为大机组FGD设备裕度考虑一定的空间,火电厂FGD将向多元化发展,湿式烟气脱硫(WFGD)将向BOT模式、规范化和大型化发展.     

江苏省火电机组节能减排在线监测系统的开发及应用

阐述了江苏省火电机组节能减排在线监测系统的监测模型、系统架构及应用功能开发情况，分析了系统的特点及其推广应用情况。该系统以实现多种类型火电机组节能减排监管业务数据的实时在线监测为目标．基于电力调度数据网络，利用J2EE分布式多层系统应用架构技术，依据MVC模式的设计思路进行技术的选型及应用的开发，包括机组状态实时监控、统计分析等功能，已在全省270余家电厂应用，保障了脱硫（硝）电价等节能减排政策落到实处。