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Highly effective sorbents obtained by treating agrowaste products in cold plasma

广东有色金属学报 2005年第2期15卷 553-556页

作者： Abdullin I. sh Kudinov V. V Kazan State Technological University Kazan 420015 Russia Baikov Institute of Metallurgy and Materials Science of Russia Academy of Sciences Moscow 19991 Russia

Sorbents are widely used in purification of various liquids and gases, offering a universal means for wastewater and air cleaning. The most promising sorbents are those obtained from agrowaste products such as rice or buckwheat husk. Processing of husk in cold plasma modifies the composition, structure and surface properties of the raw material and raises its porosity, thus substantially improving the sorption properties of the final *** as a raw material for producing sorbents has the following advantageous properties: (1) appropriate chemical composition; (2) low cost; (3) high dispersity, due to which there is no need in any special treatment of the material prior to its exposing to plasma; (4) scaly structure and developed porous surface ensuring a high surface-to-volume ratio. The best properties are displayed by the sorbents obtained in cold plasma under reduced pressures of 53.2 Pa. The raw material traverses the region occupied by the plasma and, as it does so, it gets heated up to a temperature of 250 - 350 ℃. The whole process involves two stages: combustion of the raw material and modification of its properties under the action of the plasma. The combustion proceeds due to the oxygen contained in the starting material. During the combustion, the hydrogen contained in the starting material and some part of the carbon also burn out. The resultant scaly sorbent is accumulated in a cooler. The scales are black; they range in sizes from 1mm to 5 mm. The sorbents obtained are remarkable for their useful properties and outperform most of the traditional sorbents used in modern industry. The starting materials are inexpensive, and their resources are almost unlimited. The sorbents have rather a low production cost (1.8-2.5 $/kg). The sorbents can be used for cleaning hydrosphere from water pollutants on a large scale. The degree of cleaning water surface from oil products with sorbents was a subject of investigation. The highest degree of purification th

关键词：吸附剂冷却液吸附性能空气净化废水处理

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6.00R14LT全钢微型载重子午线轮胎的设计

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轮胎工业 2017年第10期37卷 588-591页

作者：刘颖隋海涛史立芬贾珍刘晓芳山东玲珑轮胎股份有限公司山东招远265400

介绍6.00R14LT全钢微型载重子午线轮胎的设计。结构设计:外直径678 mm,断面宽168 mm,行驶面宽度128 mm,行驶面弧高度4.5 mm,胎圈着合直径354.8 mm,胎圈着合宽度127 mm,断面水平轴位置(H_1/H_2)1.15,花纹深度11.0 mm,花纹饱和度75%,花纹... 详细信息

介绍6.00R14LT全钢微型载重子午线轮胎的设计。结构设计:外直径678 mm,断面宽168 mm,行驶面宽度128 mm,行驶面弧高度4.5 mm,胎圈着合直径354.8 mm,胎圈着合宽度127 mm,断面水平轴位置(H_1/H_2)1.15,花纹深度11.0 mm,花纹饱和度75%,花纹周节数41。施工设计:胎面总宽度为155 mm,带束层为两层结构,均采用0.365+6×0.35HT钢丝帘线,胎体采用3×0.24/9×0.225+0.15钢丝帘线,采用一次法两鼓成型机成型、双模定型硫化机硫化。成品性能试验结果表明,成品轮胎的外缘尺寸、强度性能、耐久性能以及高速性能均符合相应的国家标准和企业标准要求。

关键词：全钢微型载重子午线轮胎结构设计施工设计

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