水泥熟料烧成系统煤效分析研究

水泥产业是我国工业发展中的主要组成部分,随着时代的发展,我国对水泥的需求量逐渐增加。基于此,本文将首先介绍水泥熟料烧成系统。其次,分析水泥熟料烧成系统煤效分析的影响因素,其中主要包括原燃料的影响、熟料控制指标的影响以及系统设计的影响。最后,研究水泥熟料烧成系统的煤效分析,其中主要包括水泥熟料烧成系统参数的分析以及水泥熟料烧成系统物料热平衡的分析两方面内容。     

以褐煤为炉用燃料的3 200 t/d预分解窑 系统热工分析

为了分析云南尖峰水泥有限公司3200t/d水泥熟料生产线目前的实际生产状况,总结生产经验,进一步降低预热器系统阻力,公司对该生产线烧成系统进行了一次全面的热工检测。检测结果看,该生产线熟料产量超过设计指标41%,单位熟料烧成热耗指标较好。但预热器系统阻力、出篦冷机熟料温度偏高。     

应用生料催化剂技术煅烧水泥熟料

前言 应用高效复合生料催化剂技术，可提高水泥熟料强度、产量，降低烧成煤耗。为了改善生料易烧性，更快地完成水泥熟料矿物的形成过程，提高水泥熟料质量，降低熟料烧成热耗，借鉴其他水泥企业一些生产经验，结合我厂现有生产条件，在生料中掺加催化剂进行煅烧熟料。高效复合生料催化剂，     

HCFC-3500型篦冷机的开发设计

水泥熟料篦式冷却机（以下简称篦冷机）是水泥厂熟料烧成系统中的重要主机设备，其主要功能是对水泥熟料进行冷却、输送；同时为回转窑及分解炉等提供热空气，是烧成系统热回收的主要设备。随着现代干法水泥生产技术和装备的迅速发展，以及水泥熟料篦冷机的技术不断提高，高效能、运行可靠的熟料篦冷机是确保系统生产能力强、能耗低、运转率高以及系统操作稳定的关键。     

损坏回转窑冷端耐火砖的主要原因及其对策

熟料烧成是水泥生产中的重要环节,影响着水泥熟料产量、质量、各项消耗,及水泥制造成本,最终影响企业的经济效益。而回转窑是熟料烧成的主要热工设备,因此很有必要对回转窑冷端耐火砖损坏     

3200t/d熟料生产线分解炉结皮分析及处理

中国建材集团邓州中联水泥有限公司3 200t/d水泥熟料生产线TTF分解炉是天津水泥工业设计研究院设计的,2012年2月份投料后分解炉锥体结皮厚度1m多,造成热工制度紊乱,严重影响水泥熟料的正常生产。通过对原材料、生料、燃料、熟料及矿物成分和水泥烧成系统工艺状况及操作综合分析,加强生产组织,在生产质量上采取了一系列措施,解决了锥体结皮问题,实现了水泥熟料烧成系统稳定连续生产。     

浅析烧成系统主要装备优化改造的途径

随着水泥生产技术的发展和生产线性能指标的逐步提升,原有的水泥熟料烧成装备已不能满足生产线提产和节能降耗的要求,对烧成装备的升级改造已成为水泥工业节能降耗的发展途径。在水泥烧成装备优化操作的基础上,通过分析计算,找出水泥烧成系统装备存在的主要问题和瓶颈,同时结合企业改造要求,提出对烧成系统装备可行性的优化改造方案,达到系统提高产量、降低能耗的目的。     

冷却机推动棒的力学模型与受力分析

篦冷机是水泥熟料烧成系统的重要工艺设备，它担负着对高温水泥熟料进行冷却、热回收、输送等多重作用。在现代新型干法水泥生产规模愈来愈大型化的今天。水泥熟料冷却机成为影响水泥生产技术和生产规模发展的主要因素之一。冈此，国内外水泥设备研究机构不断投入财力物力研究先进的水泥熟料冷却设备。     

浅谈电石渣代替石灰石制备水泥生料的工艺

近年来电石渣生产水泥熟料的工艺技术发展较快,但主要集中在烧成系统工艺的研究与应用,对生料配制工艺的探讨较少,而生料质量的好坏将直接影响到水泥熟料的烧成过程和熟料的质量。     

电石炉散点除尘灰作为水泥原料的应用实践

通过对电石炉散点除尘灰配料可行性分析，并结合生产实际，将散点除尘灰应用在水泥生料配料中，既有效利用了生产固废，又降低了水泥熟料烧成煤耗，降低了生产成本，对于水泥企业及电石企业均有较大的效益。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料，介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比，介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序，对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.