共查询到20条相似文献,搜索用时 125 毫秒
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浮法玻璃冷端设备是浮法玻璃生产线的末端设备,冷端辊道必须功能可靠、坚固耐用和维修方便,并具有较高的机械化和自动化水平。因此必须控制好设备的组装环节,通过组装消化制作过程的误差,使设备满足生产需要。 相似文献
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针对我国0.7 mm和0.55 mm厚度超薄浮法玻璃生产线中冷端输送过程所存在的影响正常生产的关键问题,提出了通过提高超薄玻璃生产线冷端辊道的输送精度解决超薄玻璃的破损和划伤问题的技术方案,并在超薄浮法玻璃实际生产中得到了很好应用. 相似文献
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浮法玻璃U型冷端输送方案,在优化组合冷端设备的基础上,可以大大缩短冷端主线长度,对解决建设场地短的问题有着非常重要的意义. 相似文献
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目前镍铬等稀有金属价格的大幅涨价,使得企业生产成本上升.通过十几年的设计经验和国内数十条浮法玻璃退火窑输送辊道的使用情况,总结出在温度低于520℃区域都可使用石棉辊,不仅降低成本,还具有一系列优点. 相似文献
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通过设计参数的计算,对斜坡输送辊道进行了全面的论述与分析,认为合理选择凸弧与凹弧的曲率半径对斜坡 输送辊道尤为重要. 相似文献
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结合国内外30多家浮法玻璃生产线的安装调试经历,阐述了采取正确调整八字辊角度、开槽加胶套装及螺丝紧定胶圈法、分段整体移动横梁法和分区段控制偏差法等技术措施,对预防和调整玻璃带和玻璃板在整个工艺线输送过程中的跑偏是十分有效的. 相似文献
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This article studies the possibility of reducing the high initial moisture content of wet rough rice using a small-scale low-cost pneumatic conveying dryer as a first stage dryer. The parameters investigated are final moisture content, surface temperature of rough rice, head rice yield, drying rate, power consumption per unit mass of evaporated water, and physical characteristics of rice. Parametric effects of the following variables are examined: velocity of drying air from 20 to 30 m/s, feed rate of rough rice from 150 to 350 kg/h, initial moisture content from 22 to 26% (wet basis), and drying air temperature from 35 to 70°C. From the experimental results, it is found that this drying method can be used for fresh rough rice with an initial moisture content of over 24% (wet basis). The drying process is able to lead to very rapid drying without any grain quality problems such as cracks in the rice kernel. The moisture content can be reduced to approximately 18% (wet basis) or about 5–6% of the initial moisture content within 3–4 s. The optimal drying air temperature is in the range of 50 to 60°C. A comparison of pneumatic conveying drying data obtained from the present study with fluidized bed drying data reported in the open literature is also discussed. 相似文献
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This article studies the possibility of reducing the high initial moisture content of wet rough rice using a small-scale low-cost pneumatic conveying dryer as a first stage dryer. The parameters investigated are final moisture content, surface temperature of rough rice, head rice yield, drying rate, power consumption per unit mass of evaporated water, and physical characteristics of rice. Parametric effects of the following variables are examined: velocity of drying air from 20 to 30 m/s, feed rate of rough rice from 150 to 350 kg/h, initial moisture content from 22 to 26% (wet basis), and drying air temperature from 35 to 70°C. From the experimental results, it is found that this drying method can be used for fresh rough rice with an initial moisture content of over 24% (wet basis). The drying process is able to lead to very rapid drying without any grain quality problems such as cracks in the rice kernel. The moisture content can be reduced to approximately 18% (wet basis) or about 5-6% of the initial moisture content within 3-4 s. The optimal drying air temperature is in the range of 50 to 60°C. A comparison of pneumatic conveying drying data obtained from the present study with fluidized bed drying data reported in the open literature is also discussed. 相似文献
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黄韬 《硫磷设计与粉体工程》2002,(6):18-21
对颗粒状物料的气力输送 ,人们往往只重视所要采用的输送方式 ,而忽视了输料管连接方式的正确选择、施工与安装。输料管连接方式的正确与否 ,直接影响到输送量和物料的品质。详细介绍了常用的几种连接方式 ,分析了它们的优缺点 ,并提出了比较合理的连接方式 相似文献
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单纯的气力输送方式已不能满足日益增长的聚烯烃品种增加,质量提高及装置优化布置的需要,优越的水力输送方式正在成为长距离,大能力,柔和性与经济性输送聚烯烃颗粒物料的最佳方式,对聚烯烃颗粒物料采用水力输送方案的必要性作了分析。并介绍了水力输送技术的发展状况及设计要求。 相似文献
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随着橡胶工业的发展,以及气力输送特有的优点,气力输送系统越来越广泛地应用于输送炭黑的过程中。以炭黑气力输送系统为研究对象,详细介绍了系统设计的基本参数确定、气力输送形式的确定、压送罐客积的设计、输送管道的设计,并通过输送系统压力降的计算验证了设计参数的取值是合理的。 相似文献
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非塞流固体输送理论的简化 总被引:1,自引:2,他引:1
本文依据固体输送段的非塞流现象,把固体分成上,中,下层,通过应力-速度方程,推导出产量与压力降的三次方程,这样既简化了非塞流固体输送理论,又保持了原有精度,计算结果表明了该方法的可行与实用性。 相似文献