喷雾干燥塔节能新措施

本文从燃料，机械，减水剂等方面，对陶瓷喷雾干燥的节能问题进行了阐述，通过采取不同的技术措施，可大幅度降低喷雾干燥塔的能源消耗。     

浅谈喷雾塔在陶瓷原料干燥中的节能方法

本文简要介绍了陶瓷面砖原料制备设备——喷雾干燥塔的工作原理和使用特点,重点探讨了喷雾干燥塔的节能方法。     

喷雾干燥塔节能新措施

本文从燃料、机械、减水剂等方面．对陶瓷喷雾干燥塔的节能问题进行了阐述，通过采取不同的技术措施，可大幅度降低喷雾干燥塔的能源消耗。     

喷雾干燥系统的Yong经济优化研究

对三环节Ｙｏｎｇ经济优化能量综合方法在喷雾干燥系统的应用进行了全面深入的研究，提出了适用于喷雾干燥系统的Ｙｏｎｇ经济调优法。改进了喷雾干燥器的ＰＡＲＴＩ模型，使之能够方便快捷地进行模拟计算，以干燥尾气为决策变量，在一定Ｙｏｎｇ经济边界条件Ｃｕｉ和Ｃｕｉ下，给出了喷雾干燥塔的Ｙｏｎｇ经济优化计算方法。     

从热平衡测试结果看喷雾干燥塔节能

本文结合喷雾干燥塔热平衡测试数据，分析了通过提高泥浆浓度、改善泥浆性能、提高进塔热风温度、合理控制操作条件、降低烟气带走热量等几种手段，来提高喷雾干燥塔的热效率。     

喷雾干燥的节能设计

喷雾干燥器是能耗较大的设备，推广喷雾干燥的节能技术具有重大的经济意义，YPG-1600/100型压力式喷雾干燥机节能效果十分显著，本文介绍该机采用的“集中送风”与“顺壁风”相结合的二次进风形式及使直流式主秘风干燥分离器与干燥塔有机地结合的节能原理，以及介绍该机在雾化、加热、控制等方面采用的实用节能措施，供国内外同行参考和借鉴。     

保护渣行业喷雾干燥器节能新措施

喷雾干燥塔是生产颗粒保护渣必需的关键设备,同时也是主要能耗设备。耗能会直接影响企业的生产成本和经济效益。降低喷雾干燥器的能耗,节约能源及降低生产成本,对提高企业的经济效益,促进陶瓷工业的可持续发展具有深远而重要的意义。20世纪80年代,咸阳陶瓷研究设计院首先在PD1000型喷雾干燥器的基础上研制成功了PD2000型喷雾干燥器,并实现了PD4000型以下的产品系列化,为我国陶瓷行业的发展起到很大的推动作用。近10年,在该产品的推广及应用上也做了大量的工作,除了在陶瓷行业外,在生产保护渣方面也积累了很多宝贵的经验,尤其是在节能方面…     

喷雾干燥在陶瓷制粉中的应用

充分发挥喷雾干燥塔在陶瓷制粉中的作用,主要从加大热风炉燃烧体积,提高喷枪的高度,控制出塔热风温度和提高泥浆浓度入手,使粉料的含水率和流动性达到满意的结果。     

喷雾干燥塔节能降耗途径探索

喷雾干燥塔是陶瓷厂的耗能大户，作者总结多年来从事喷雾干燥研究及推广应用的经验，归纳出喷雾干燥节能降耗的有效途径，供各喷雾干燥塔用户借鉴。     

喷雾干燥塔的节能方法

本文简要介绍了喷雾干燥塔的使用特点,并探讨了其节能方法。     

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.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

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.     

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.     

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。