燃稻壳链条锅炉

介绍了济锅集团开发的可掺烧或纯烧稻壳的75t／h链条锅炉及其相关技术；利用技术改进抛煤机链条锅炉燃烧系统，可以提高锅炉效率，减少排放，燃烧稻壳，节约能源，保护环境。     

抛煤机链条锅炉技术经济分析

主要介绍济南锅炉集团引进南非JTA公司75t/h锅炉链条炉排及其锅炉技术;利用其技术的先进性,改进抛煤机锅炉燃烧系统,提高锅炉效率,减少排放,保护环境。     

GEF中国高效工业锅炉抛煤机链条锅炉技术经济分析

文章主要介绍济锅集团引进南非JTA公司75t/h锅炉链条炉排及其锅炉技术；利用其技术的先进性，改进抛煤机锅炉燃烧系统，提高锅炉效率，减少排放，保护环境。     

小型链条炉排稻壳锅炉的开发设计

稻壳燃烧特性与煤不同,在作为燃料用于链条炉排锅炉时存在一些问题.分析了小型链条燃煤锅炉直接改用燃烧稻壳时运行中常见问题的原因,在此基础上根据稻壳的燃烧特性,详细论述了小型链条炉排稻壳锅炉在开发设计及运行中应注意的问题.给出了适于稻壳锅炉的炉拱设计参数,提出了合理的上料系统,阐述了如何调节鼓引风量等锅炉运行中应注意的事项.所述方法可使小型链条炉排锅炉在利用稻壳做燃料时运行更加经济可靠,同时对小型燃煤链条锅炉改为燃用稻壳也有一定借鉴作用.     

节能型GEF抛煤机链条锅炉技术分析

主要介绍济锅集团引进开发的75t/h高效节能链条锅炉;利用其技术的先进性,改进抛煤机锅炉燃烧系统,提高锅炉效率,节约能源,减少污染物排放,保护环境。     

链条炉排锅炉燃用低质煤刍议

链条炉排锅炉通常燃用优质煤,当燃用低质煤时常常出现锅炉燃烧不稳、出力不足,影响正常供汽的弊端。为此,对低质煤的燃烧进行研究很有必要。     

运用循环流化床技术改造链条锅炉

本文介绍了运用循环流化床技术改造链条锅炉的特点，并作了相应的技术经济分析。     

燃用稻壳流化床锅炉的燃烧特性研究

本文介绍了在热态流化床试验台上进行的燃用稻壳的试验结果。     

抛煤机链条锅炉炉排起拱的原因分析及解决方法

文章分析了一台UG－35／39－M型抛煤机锅炉在负荷升至20t/h以上时，经常出现炉排起拱的原因，并提出了解决问题的方法。     

工业锅炉使用轻型链条炉排替代鳞片式链条炉排

文章分析了鳞片式链条炉排存在的问题,介绍了两种可以替代鳞片式链条炉排的,运行经济可靠的轻型链条炉排。     

链条炉中劣质煤燃烧的分析

本文根据链条炉的燃烧特性，对燃煤的适应性要求，分析讨论了劣质煤在链条炉中的燃烧技术，并就末煤型无烟煤的燃烧提出改进措施。     

稻壳在循环流化床中燃烧现象的分析

为了研究稻壳在循环流化床中的燃烧特性，在生物质循环流化床试验台上对稻壳进行了燃烧试验。通过对试验过程中各测点温度及压力变化的分析，探讨了二次风和循环回料对稻壳在循环流化床燃烧炉内燃烧过程的影响。试验结果表明：二次风可以促进挥发分在稀相区的燃烧，对提升稀相区的温度作用明显；正常循环回料使得温度沿炉膛高度均匀分布。所得结论对生物质循环流化床的试验研究及实际运行有一定的参考意义。     

生物质成型燃料链条炉主要设计参数的试验确定

根据生物质成型燃料燃烧特性、链条炉热力学特性及燃烧设备的设计实践经验,在特制的生物质成型燃料链条炉上,结合工业锅炉热工性能试验规程(GB 10180-2003)、工业锅炉节能监测方法(GB/T15317-1994)、锅炉烟尘测试方法(GB 5468-91)和锅炉大气污染物排放标准(GB 13271-2014),对4种工况进行试验,确定出生物质成型燃料链条炉主要设计参数,从而为生物质成型燃料链条炉的设计及技术改造提供科学依据。     

链条锅炉节能降耗综合改造

链条锅炉煤种适应性差,不适于单烧无烟煤及结焦性强和低发热量的劣质煤;燃烧不完全使锅炉出力不足;对负荷适应力差,运行不稳时,炉渣含碳量高;结构复杂炉排、侧密封故障多,司炉劳动强度大。针对以上问题,本文主要介绍通过加装分层给煤装置、改进炉拱、炉排及侧密封结构等来改善配风,强化煤质引燃和燃尽,从而增加锅炉出力,提高热效并降低烟尘排放：某20t／h锅炉经改造后,锅炉热效率提高10％左右,每小时耗煤量减少0．2t,机械不完全燃烧损失降低8％,气体不完全燃烧损失降低0．41％,节能减排效果较为明显。     

煤粉燃烧技术在链条锅炉中的应用

叙述了煤粉燃烧的特点及适用于35t／h链条锅炉的制粉煤燃烧系统，指出了运行制粉燃烧系统时应注意的事项。     

Overview of combustion and gasification of rice husk in fluidized bed reactors

Rice is cultivated in more than 75 countries in the world. The rice husk is the outer cover of the rice and on average it accounts for 20% of the paddy produced, on weight basis. The worldwide annual husk output is about 80 million tonnes with an annual energy potential of 1.2 × 10⁹ GJ corresponding to a heating value of 15 MJ/kg. India alone generates about 22 million tonnes of rice husk per year. If an efficient method is available, the husk can be converted to a useful form of energy to meet the thermal and mechanical energy requirements of the rice mills themselves. This paper provides an overview of previous works on combustion and gasification of rice husk in atmospheric bubbling fluidized bed reactors and summarizes the state of the art knowledge. As the high ash content, low bulk density, poor flow characteristics and low ash melting point makes the other types of reactors like grate furnaces and downdraft gasifiers either inefficient or unsuitable for rice husk conversion to energy, the fluidized bed reactor seems to be the promising choice. The overview shows that the reported results are from only small bench or lab scale units. Although a combustion efficiency of about 80% can normally be attained; the reported values in the literature, which are more than 95%, seem to be in higher order. Combustion intensity of about 530 kg/h/m² is reported. It is also technically feasible to gasify rice husk in a fluidized bed reactor to yield combustible producer gas, even with sufficient heating value for application in internal combustion engines. A combustible gas with heating value of 4-6 MJ/Nm³ at a rate of 2.8-4.6 MW_th/m² seems to be possible. Only very little information is available on the pollutant emissions in combustion and tar emissions from gasification. The major conclusion is that the results reported in the literature are limited and vary widely, emphasizing the need for further research to establish suitable and optimum operating conditions for commercial implementations.     

燃高灰分劣质无烟煤角管式链条炉排锅炉技术改造

从工程实践的角度出发,针对高灰分劣质无烟煤的特点,对一台角管式链条炉排锅炉在燃用非设计煤种时,所产生的锅炉出力降低、受热面积灰严重的状况进行了研究和分析.通过对锅炉炉拱和炉内烟气流道的改造,以及二次风的运用,提高锅炉在燃用高灰分劣质无烟煤时的出力和运行效率,改善了炉内的严重积灰现象.改造突出了锅炉前、后拱在链条炉燃烧组织中极其重要的作用,可为其它在燃用非设计煤种时出力降低的锅炉技术改造提供借鉴.     

Experimental investigation of combustion characteristics in a multi-staging vortex combustor firing rice husk

The paper described the combustion characteristics in a multi-staging vortex combustor by using rice husk as fuel. Effects of the operating conditions namely: equivalence ratio (Φ = 0.8, 1.0 and 1.2) and secondary air ratio (λ = 0.0, 0.15 and 0.25) on combustion characteristics (temperature distribution, fly ash and gas emission) were experimentally studied. In the experiments, the conventional vortex combustor consisted of two straight concentric cylindrical pipes, combustion chamber (outer chamber) and exhaust pipe (inner chamber). The variable size of middle section of the combustor was designed to be adjustable from 1.0D (conventional vortex combustor), to 0.75D and 0.5D as desired. The changes of the middle chamber size lead to multi-staging vortex inside the combustor. In the experiments, the rice husk was fed into the combustor at constant mass flow rate of 0.3 kg/min. Test results revealed that the mean temperature distribution for the multi-staging vortex combustor with middle chamber size of 0.5D was higher than those of 0.75D and 1.0D. The experimental results showed the maximum temperature of about 1176 °C in the vortex chamber with the middle chamber of 0.5D at equivalence ratio, Φ = 0.8 and no secondary air injection, λ = 0.0. Measurements of gas emissions from cyclone collector consisted of O₂ = 2.5%, CO₂ = 17.3%, and CO = 270 ppm, respectively.