延长高炉煤气干法除尘输灰系统寿命的研究

针对高炉煤气干法除尘卸灰阀门、三通、弯头、管道频繁刷漏问题,进行分析研究,通过优化干法除尘工艺操作、改造管系结构等方法,延长了输灰系统使用寿命、降低了材料消耗、减少了维护和检修工作量,提高了干法除尘系统的安全性。     

转炉干法电除尘灰气力输灰技术的开发与应用

针对炼钢厂转炉干法除尘系统电除尘灰输灰、卸灰存在的问题,介绍了在转炉干法除尘电除尘器下方直接安装气力输灰系统的开发及改进过程,解决了输灰设备故障高的问题,避免了电除尘灰转运造成二次污染,具有显著的经济效益和环保效益。     

莱钢转炉LT除尘灰的利用实践

介绍了转炉LT干法除尘系统及LT除尘灰的成分和特性。莱钢除尘灰利用有长流程和短流程两种方案，除尘灰被加工成金属副产品、回转窑精粉和除尘灰压球。使用除尘灰压球替代烧结矿用于转炉冶炼，取得很好的脱硫、脱磷效果，并且吨钢降低成本6.02元，实现了干法除尘灰全部回收利用，减轻了环境污染。     

高炉煤气干法布袋除尘系统低温运行方式研究

高炉煤气干法布袋除尘系统是净化高炉煤气的先进设备。针对干法布袋系统运行率低,高炉灰板结,筒体锥部和输灰系统堵塞等问题,通过对干法布袋除尘系统运行方式的研究,优化了输灰工艺,有效预防了输灰管堵塞,提高了布袋运行率,增加了TRT发电量。     

正压浓相气力输灰装置在莱钢高炉干法除尘系统中的应用

分析了莱钢高炉干法除尘机械输灰系统存在的问题,通过干法除尘机械输卸灰方式和改造成气力输灰方式后的比较,总结了气力输灰的优缺点,并提出了改进方向。     

阳春新钢1250m~3高炉煤气干法除尘流程及输灰系统运行实践

文章结合1250m3高炉煤气干法除尘及气力输灰系统运行实践情况,简述了高煤气干法除尘的工艺流程和输灰系统流程。探讨了系统需进一步完善提高的技术,拟为输灰系统的优化设计和应用提供借鉴。     

宝钢1号高炉干法除尘技术应用及改进实绩

宝钢1号高炉干法除尘系统为中国首次在特大型高炉上应用干法除尘技术,经过近几年的生产实践,干法除尘系统运行良好,为干法除尘系统在大型高炉上推广应用积累了重要的操作经验。主要介绍宝钢1号高炉干法除尘技术以及输灰过程中存在的问题及解决方法,为全干法在特大型高炉上的应用提供了很好的参考,并提出了大型高炉除尘技术的发展方向。     

仓泵浓相输灰在高炉煤气布袋除尘系统的应用

结合仓泵在某1350 m3高炉煤气干法除尘输灰系统的设计及运用,介绍了高炉煤气干法除尘中仓泵输灰系统的工艺流程和输灰的工作过程,阐述了仓泵输灰的特点及优势,仓泵浓相气力输灰方式有着广阔的应用前景。     

转炉干法除尘灰在半钢冶炼中的回收利用

论述了转炉煤气干法除尘灰的产生及理化性质,并介绍了转炉干法除尘灰回收利用的工艺流程及应用实践情况。实践表明,采用炼钢干法除尘灰,配加少量锰矿和石英砂以及黏结剂制备的XG型复合造渣剂,作为转炉造渣剂用于炼钢;采用炼钢干法除尘灰,配加筛焦除尘灰以及黏结剂制备的铁碳复合球团用于炼钢,具有可观的经济效益、社会效益和环境效益。     

高炉煤气干法除尘气体输灰系统的优化

针对高炉煤气干法除尘气体输灰系统因煤气温度和环境温度低带来故障影响生产的问题,采取了对应的措施和方法,为干法除尘气体输灰的更好应用提供了建议。     

论从实践理解世界的物质性和自然世界的先在性

马克思主义唯物论是一种物本主义形态的唯物论,还是一种超越物本主义形态、从实践理解世界的本质相关问题的实践的唯物主义的唯物论?这是一个我们必须搞清楚的有关马克思主义唯物论的本质规定性和精神实质的重大问题.在考察物本主义的唯物论及其思维方式的局限性的基础上,揭示了马克思主义唯物论是现代的、实践的唯物主义,并重点研讨了马克思主义唯物论关于从实践理解世界的物质性和自然世界的先在性的原理,以期为马克思主义唯物论进一步阐明人类世界的实践性原理奠定基础.     

Effect of cyproheptadine on the ultrastructure of the neurons of the arcuate nucleus in the hypothalamus of the rat

The data are presented on changes in the rat arcuate nuclear neuron ultrastructure after using cyproheptadine (peritol, Egyt Pharmaceutical Works, Hungary) in a water suspension at a dose of 20 mg/kg once daily during 7 successive days and twice a day within 10 days. It was shown that cyproheptadine decreases the functional activity of the arcuate nuclear neurons, depending on the total amount of the drug used. Cyproheptadine-induced inhibition of the forming neurohormone release from neurons is likely to be one of the mechanisms of its therapeutic effect in Itsenko-Cushing's disease.     

Characteristics of the sympathetic innervation of the nictitating membrane and of the vasculature of the nose and tongue of the cat

Vasomotor responses from the nasal mucosa and tongue, and contractions of the nictitating membrane, were recorded on stimulation of the cervical sympathetic or internal carotid nerves. Preganglionic sympathetic nerve fibres which elicited a membrane response possessed a lower threshold than those which evoked nasal vasoconstriction, while the latter displayed a lower threshold than fibres which evoked tongue vasoconstriction. The sympathetic vasodilator fibres to the tongue whose activity was revealed after alpha-receptor blockade, had a similar threshold to the vasoconstrictor fibres. Membrane contraction, nasal vasoconstriction and occasionally tongue vasoconstriction could be evoked by stimulating the internal carotid nerve. The postganglionic fibres innervating the nasal mucosa had a similar threshold to those of the nictitating membrane, which may indicate that there are small myelinated fibres innervating the mucosa. The preganglionic compound nerve action potential had four major components, S1-S4. S1, S2 and usually S3 fibres were associated with membrane contraction; S2, S3 and sometimes S1 fibres were associated with nasal vasoconstriction; and S3, usually S2 and occasionally S1 fibres were associated with vasoconstriction in the tongue. It is concluded that each of these three groups of nerve fibres, but not S4 fibres, may include fibres associated functionally with the three effectors. There was a considerable difference between the relative amplitude of the responses of the three effectors elicited by stimulation of the cervical sympathetic nerve at frequencies between 0.2 and 2 Hz. Vasoconstrictor responses were relatively larger than membrane contractions suggesting differences in the mechanisms of neurotransmission at the neuroeffector junctions.