生命周期评价（LCA）与废玻璃回收利用

基于可持续发展的要求与环境管理的发展趋势,利用生命周期评价（LCA）理论体系,通过对利用碎玻璃生产的全过程（包括碎玻璃的回收采集、清洗磁选、玻璃再生产的最终过程）进行缟目分析和量化比较,探讨废玻璃回收利用的资源环境、效率及经济效益。     

PLM间接预热配合料和碎玻璃成功

德国ＰＬＭ玻璃容器制造厂在其Ｍｕｅｎｄｅｒ玻璃厂安装上了高级废热利用系统，该系统主要部分是一个间接碎玻璃预热器，这一项热器随着碎玻璃在熔化中的所占经例不同，其所节约的能量也不同，最高节能可达１８％。     

国内外玻纤工业废丝、玻璃钢废料及碎玻璃的回收利用典型实例

<正>众所周知,每年全世界的玻璃产量相当巨大,达到近亿吨级,其中不乏利用玻璃生产的玻纤、玻璃棉以及玻纤增强的复合材料(玻璃钢)。玻璃不但广泛应用于房屋建筑和人类的日常生活之中,而且发展成为科研生产以及尖端技术所不可缺少的新材料。但与此同时不可避免地产生许多玻璃废弃物(含废玻纤丝、玻璃棉等)。从工业生态的角度看,玻璃是一种理想的材料,它可百分之百和无限制地回收。据相关资料介绍:使用回收社会碎玻璃(即外购碎玻璃)一吨,约能节约纯碱160公斤,还可加快     

浅谈怎样合理使用碎玻璃

碎玻璃是一种十分有效的助熔剂，而且价格较低，所以提高碎玻璃的掺入率是降本增效行之有效的方法之一，但如果碎玻璃的用量太大又会对玻璃生产造成一定的负面影响。因此合理使用碎玻璃对生产玻璃的企业而言是一个非常值得关注的问题，本文对此作了一些简要的探讨。     

硒红套色制品熟料的利用

介绍了利用硒红套白瓷碎玻璃生产硒红玻璃的经验。实践证明,适当引入还原剂,增加着色剂用量,控制玻璃的熔制条件,能大量引用上述碎玻璃生产出质量好的硒红玻璃,在生产中收到了显著的经济效益。     

浅谈碎玻璃在浮法玻璃生产中的应用

碎玻璃是玻璃生产的必然产物,也是一种不可缺少的玻璃原料。在浮法玻璃生产时,把碎玻璃做为影响玻璃质量的一种因素来考虑,科学的使用碎玻璃,不但可以提高浮法玻璃原料的熔融速度,还可以降低原料熔融过程的燃料消耗,提高玻璃熔窑的熔化效率。对企业节省能源、提高经济效益是十分重要的。     

专利文摘

碎玻璃加入玻璃熔炉之前,先用热气预热。熔制玻璃的石英砂等固体原料加入混料机,并向混料机中加进氢氧化钠溶液。混合料用进入混料机的热气预热。接着向混料机加入上述预热过的碎玻璃,并将碎玻璃同混合料一起搅拌。从混料机出来的热气再导入玻璃熔炉。     

合理使用碎玻璃

碎玻璃是玻璃生产过程中原料的重要组成部分。本文对使用碎玻璃的利与弊和使用碎玻璃的方法，稳定措施以及与各工艺环节的关系进行了综合论述，并对使用碎玻璃过程中应当注意的问题进行了探讨。     

用碎玻璃生产环保砖

据报道，香港每年产生近13万吨废玻璃，将近90％被运往堆放填掩埋区而废弃。香港理工大学成功利用碎玻璃生产环保砖，今年初将大规模试用：在环保园第一期的行人路上，铺出相当于15个标准篮球场的路面。     

碎玻璃的处理、输送和贮存

一、国内情况 1.碎玻璃的来源 (1)正常生产情况下,从平板玻璃原片上切裁下来的边角玻璃,约占玻璃生产总量的15～25％;还有相当一部分碎玻璃是定期停产产生的碎玻璃,约占玻璃生产总量的5～10％。 (2)生产外正常情况下,由于熔窑作业温度偶而波动,或原料质量和配合料均匀度突然变化及操作失误等造成的生产不稳定生成的碎玻璃,其数量难以估计。 2.目前状况     

Amorphous silica wastes for reusing in highly porous ceramics

The paper analyzes a solution in green manufacturing of foamed or cellular ceramics. The objective of this study was to determine the technical solution for rice husk ash and “tales” of mixed glass cullet reusing based on the specific properties of these materials for creation of spherical holes inside ceramic using the process of coalescence of cellular glass. The paper reports on experimental results obtained from the production of lightweight cellular glass granules produced using glass cullet and rice husk ash. Lightweight cellular glass granules were mixed with clay, pressed and fired in air at 920°C. Clay sintering and the formation of ceramic were followed with the coalescence of cellular structure of glass granules and with the formation of spherical hollows inside the matrix. Density and strength of the fired ceramic bodies were determined. It is observed that the lightweight ceramics with density 900 ÷ 920 kg/m³ possess a compressive strength of about 5 MPa that is acceptable for bricks or tiles manufacture. The utilization of amorphous silica waste for lightweight ceramics manufacture helps in reducing waste disposal concerns and costs associated, and also transforms the waste into an alternative raw material with added value, moreover making the final product cheap.     

Use of Cullet of Different Chemical Compositions in Foam Glass Production

The results of studying the possibility of using cullet of different chemical compositions accumulated at dumping grounds for foam glass production are described. It is established that sodium silicate introduced into cullet in the form of water glass partly destroys milled cullet and homogenizes the chemical composition of the batch and its most significant technological properties. Due to the chemical reaction between water glass and the surface of milled cullet particles, silicates are formed containing bound water, which is released at high temperatures (600 – 620°C) and facilitates frothing of foam glass. Water glass in a batch increases the quantity of the vitreous phase and decreases the propensity of glass for crystallization.     

Causes of glass melt tinting when employing cullet in maximum quantity

The bulk tinting of glass produced using the maximum amount of cullet is investigated. The possibility of producing industrial quantities of glass for construction purposes using glass waste is demonstrated, which ensures significant savings in raw materials. Translated from Steklo i Keramika, No. 7, pp. 30–32, July, 1999.     

Reuse of ceramic sludge in the production of vitrified clay pipes

The use of various wastes in the manufacture of different ceramic products has proved to be beneficial from both economic and environmental points of view. In the present paper, the simultaneous reuse of ceramic sludge waste (from 0% to 6.2%) and cullet (from 0% to 10%) in the production of vitrified clay pipes has been investigated. Samples were pressed at 15?MPa, dried and subsequently fired at three different temperatures (1050, 1150 and 1250?°C) and soaking times (1, 2 and 3?h). A two-level factorial design was applied to study the effect of the various parameters on the properties of fired bodies. It was concluded that an economic recipe can be prepared involving the use of 6.2% sludge (dry basis) and 5% cullet with the balance clay +?grog followed by firing the dried body at 1050?°C for one hour only. The produced fired specimens yielded bending strength exceeding the minimum requirement for any size of soil embedded pipes and for 8″ and larger concrete cradled pipes. The suggested composition makes use of an environmentally polluting waste (sludge) and broken glass waste (cullet) and involves firing for one single hour at a temperature about 200?°C lower than commonly used.     

Design and synthesis of foam glasses from recycled materials

Recycling has emerged as an environmental key point due to the diminishing of natural resources and the generation of ever-increasing amounts of industrial solid wastes. Glass wastes are among the materials that attract great interest in the recycling concept. This work presents the results of foams production from four series of compositions. The first series comprises powders of a sodium-calcium-silicate sheet glass cullet as the main component, an alkali-earth aluminosilicate glass as an additive, and a reagent grade silicon carbide (SiC) powder as gassing agent. In the second series, the glass cullet was used in combination with fly ashes (FLA) as main components, while SiC waste from abrasive paper served as foaming agent. In the third and fourth series, carbonates (calcite and dolomite) were used for foaming powder mixtures composed of sheet glass cullet and FLA, and powdered cathode ray tube panel glasses, respectively. All the processing parameters, including the main components, the nature and content of foaming agents are shown to play a crucial role on the foaming ability and final properties of the glass foams.     

Alkaline and alkaline-earth silicate glasses and glass-ceramics from municipal and industrial wastes

Municipal (bottom ash and glass cullet coming from the municipal solid waste incineration and a community glass recycling program, respectively) and industrial (steel fly ash) wastes are particularly suitable to be subjected to a vitrification/devitrification process, leading to the production of alkaline and alkaline-earth silicate differently colored glasses with good chemical properties, capable to be transformed into surface nucleated basaltic glass-ceramics. These materials were investigated by means of differential thermal analysis, durability and release tests, X-ray diffraction and scanning electron microscopy.     

浅谈碎玻璃质量控制

从碎玻璃源头及过程处理对碎玻璃进行质量管控以确保各种碎玻璃质量符合工艺要求,能放心的投入平板玻璃生产使用。     

Opportune inward waste materials toward a zero waste ceramic slabs production in a circular economy perspective

This work is related to the preliminary lab-scale preparation of ceramic slabs, reproducing the characteristics of natural stones, containing up to more than 40 wt.% of different waste materials, namely laboratory glass, cullet glass (both thought as fluxing agents replacing feldspar), and ceramic waste obtained from drying squaring operations (for partial quartz sand replacement). Indeed, in order to pursue the circular economy principles, the possibility of turning different kinds of wastes into resources for the ceramic industry, surely represents the first concern to be addressed and demonstrated, with also the aim to reduce the environmental impact associated with landfill, minimizing manufacturing cost and contributing to preserve nonrenewable natural resources, which are known to be consistently depleted by the ceramic industries.     

Reasons for Variations in Glass Melt Diathermancy in an Operating Tank Furnace

Taking into account variations in glass melt diathermancy, nonstandard situations arising in operating a multi-ton tank furnace are considered. It is demonstrated that an increase in the quantity of introduced cullet, as well as a decrease or a temporary suspension in glass production, lowers the glass melt diathermancy.     

Production of reinforced glass with an elevated cullet content

The possibility of using 30–100% cullet in the production of reinforced glass is considered. Experimental data and technological recommendations for the production of reinforced glass with a high cullet content are presented.Translated from Steklo i Keramika, No. 12, pp. 3–6, December, 1995.