高端卫浴产品长沙受青睐

本刊讯近日，笔者在湖南省长沙市卫浴市场了解到，随着桂花城、上庭苑、青竹湖等高端别墅开发率的上升，长沙市高端卫浴产品的销量大幅增加。     

恒洁、威麦卫浴长沙促销

本刊讯9月25日，湖南省长沙市恒洁卫浴专卖店推出“到场有礼，订购有大礼”促销活动。几天之后，位于湖南省长沙市居然之家一楼的威麦卫浴专卖店也推出降价促销活动。     

长沙市节能环保产业现状与发展对策研究

分析了长沙市环保产业的现状及特点,预测了长沙市环保产业的发展趋势,研究了长沙市环保产业存在的问题,并对长沙市环保产业的发展提出了对策与建议。     

李家法作品赏析

李家法，男，湖南醴陵人，自幼爱好美术，喜国画、油画、书法、摄影，曾在长沙市人民艺术学校、湖南省群众艺术馆、长沙市工人文化宫习画、师从李自健、陈子云、张月明等诸家。1986年考入湖南工业大学学习．受教于汪田明．李成等老师。现供职于湖南省陶瓷研究所创作设计中心。     

李家法作品赏析

李家法，男，湖南醴陵人，自幼爱好美术，喜国画、油画、书法、摄影，曾在长沙市人民艺术学校、湖南省群众艺术馆、长沙市工人文化宫习画、师从李自健、陈子云、张月明等诸家。1986年考入湖南工业大学学习．受教于汪田明．李成等老师。现供职于湖南省陶瓷研究所创作设计中心。     

申鹭达卫浴长沙促销

本刊讯近期，申鹭达卫浴于湖南省长沙市推出一系列促销活动，吸引了大批消费者的关注。     

欧美尔卫浴长沙开店

本刊讯近日，位于湖南省长沙市望龙建材市场的欧美尔卫浴旗舰店隆重开业，吸引了众多消费者进店参观与咨询。     

长沙将新增两家居卖场

本刊讯 近日，笔者在长沙各大卖场了解到，年底前，湖南省长沙市万家丽路附近将新开居然之家与喜临门两家品牌连锁卖场。     

8m超大板玻璃生产线花落“永兴”填补五省边区空白

近日，长沙市永兴玻璃有限公司索尔斯8米超长双对流钢化玻璃生产线投产，这是湖南省唯一一家拥有此项技术的玻璃深加工企业。该生产线落户张家界，     

东鹏洁具长沙促销

本刊讯9月17日至10月7日，位于湖南省长沙市万家丽家居建材广场二楼的东鹏洁具专卖店推出让利酬宾优惠活动。     

基于Elman网络的动力配煤煤质预测模型的研究

动力配煤的多种煤质指标与各组分单一煤种的煤质指标之间具有典型的非线性映射特征。Elman回归神经网络是一种典型的动态神经元网络,具有映射动态特征的功能,尤其具有高度的非线性映射能力。笔者利用Elman网络建立了动力配煤煤质预测模型,并以较好的预测效果实现了动力配煤煤质预测,从而证实了该方案的可行性。     

The cause of the uneven carbonization process in wet coal charging in coke oven chamber

In the case of the wet coal charging process in coke oven chamber, it is known that the coking process is uneven and a local carbonization delay occurs. The reason was investigated through a laboratory-scale experiment and a quantitative estimation. A partial carbonization test in a test coke oven replicated the uneven plastic layer and local carbonization delay. It was revealed that most of the gas generated in the uncarbonized coal layer results from the evaporation of condensed water and that steam can break through the plastic layer in a test coke oven. Moreover, the order estimation implied that steam that generates in the uncarbonized coal layer and breaks through the plastic layer has sufficient heat capacity to cool the heating wall and delay the carbonization. It was also shown that the steam pressure peak measured in a commercial coke oven is much lower than the estimated steam pressure in this study assuming steam not breaking through the plastic layer. The above-mentioned results and quantitative investigation strongly support the ‘steam breaking through the plastic layer’ theory proposed by Dr. Rohde that an uneven carbonization process is caused by vaporized coal moisture breaking through the plastic layer at definite, unforeseeable points, which results in cooling of the wall by the steam flow.     

浅谈贵州省动力煤的洗选加工

贵州煤炭资源丰富，动力煤产量大，而大多数都未经洗选，为了满足用户及环保的要求，针对动力煤选煤厂的特点，提出了可供动力煤选煤厂选择的最佳选煤方法。     

An investigation of the design variables for producing activated carbons from victorian brown coals by reaction with steam

Activation of Latrobe Valley brown coal by reaction with steam was investigated in a continuous indirectly heated shaft activator. The variables studied were the degree of coal gasification achieved, the ratio of steam feed rate to coal feed rate and temperature of activation. The most important of these variables is the degree of gasification of the coal. The ratio of steam feed rate to solids feed rate is unimportant when the value of this variable is greater than 0.036 g/g, and temperature is unimportant in the range 720–930°C. Process limitations which can be caused by channelling of both gas and solids and by heat transfer limitations have been discussed briefly.     

大型煤制烯烃工程蒸汽动力系统研究

为了解决煤制烯烃工程蒸汽动力系统存在的参数低、煤耗高、备用量大、管网不平衡等影响系统大型化的关键性问题,对运行中系统的数据进行了分析,通过引入超临界燃煤机组和总管制蒸汽管路等方法,提出了一种适应于更大规模煤制烯烃工程的蒸汽动力系统设计形式。在120万t/a煤制系统工程蒸汽动力系统设计中,配置2台350 MW超临界燃煤机组,结合8~9级回热和1级再热系统,可以将系统供电煤耗降低从450 g/k Wh降低到320 g/k Wh。利用机组间总管制的蒸汽管道可以实现蒸汽管网的灵活切换,在"零备用"条件下满足年运行8 000 h以上的高可靠性要求。系统发电出力不仅可以满足煤制烯烃工程自用要求,还可以向周围电网输出255 MW。该系统具有良好的扩展性,可以随煤制烯烃工程规模的变化灵活配置,满足未来更大规模工程的需求。     

节能新技术在合成氨技术改造中的应用

介绍三废流化混燃锅炉、高炉体锥形管式夹套副产中压蒸汽煤气炉、热功电联产汽轮机等技术的应用情况.使用三废混燃锅炉后,吨蒸汽煤耗下降至100kg,吨蒸汽节约用煤80kg,且尾气达标排放;将原φ2600mm造气炉改造为高炉体锥形管式夹套副产中压蒸汽煤气炉后,副产蒸汽温度提高了80℃,单炉发气量增加了1 000～1 500m3...     

选煤技术发展和中国选煤工业的发展对策研究

选煤技术正向大型化、标准化、自动化方向发展，进一步提高中国的炼焦用煤质量，提高动力用煤的入选比重，通过技术进步降低动力用煤洗选成本，鼓励动力用煤企业积极使用洗选煤是中国选煤工业发展的方向。     

发展动力煤洗选的经济合理性分析

动力煤洗选是提高煤炭质量、降低有害物含量的主要技术途径。分析了动力煤选煤厂和燃煤用户实现合理经济效益的基本条件及其节煤、减排、排污交（罚）款等影响因素,探讨了发展动力煤洗选的经济合理性条件。     

煤的水蒸气等离子体气化研究现状和前景

煤炭气化是实现煤炭洁净利用的一条有效途径 .在简要介绍常规煤炭气化技术之优缺点和等离子体技术之特征的基础上 ,评述了国内外煤炭等离子体气化技术的现状和进展 ,指出煤的水蒸气等离子体气化技术可望成为由煤制取优质合成气的一个新途径     

Modification of sub-bituminous coal by steam treatment: Caking and coking properties

A Chinese sub-bituminous Shenfu (SF) coal was steam treated under atmospheric pressure and the caking and coking properties of the treated coals were evaluated by caking indexes (G_RI) and crucible coking characterizations. The results show that steam treatment can obviously increase the G_RI of SF coal. When the steam treated coals were used in the coal blends instead of SF raw coal, the micro-strength index (MSI) and particle coke strength after reaction (PSR) of the coke increased, and particle coke reactivity index (PRI) decreased, which are beneficial for metallurgical coke to increase the gas permeability in blast furnace. The quality of the coke obtained from 8% of 200 °C steam treated SF coal in coal blends gets to that of the coke obtained from the standard coal blends, in which there was no SF coal addition in the coal blends. The removal of oxygen groups, especially hydroxyl group thus favoring the breakage of the coal macromolecules and allowing the treated coal formation of much more amount of hydrocarbons, may be responsible for the modified results. The mechanism of the steam treatment was proposed based on the elemental analysis, thermo gravimetric (TG) and FTIR spectrometer characterizations of the steam treated coal.