题目
译成英文3.2 漂珠砖烧成曲线漂珠砖的烧成曲线为两条。一条体积密度小于价另一条体积密度大于1.0(如附图)。综上所述,我们选择漂珠砖的配方及工艺条件是根据制品的体积密度来制定的,并经多次试验修正,研制和开发了体积密度0.4~1.5的系列漂珠砖。4. 我厂生产漂珠砖的工艺特点4.1 璐材料的化学组成与指标控制由于原料的性质对制品性能起着决定性的作用,因此严格控制原料的指标尤为重要。一般来说,原材料的化学组成应与漂珠的成分相近。由于我厂漂珠含铁成分较高,因而其它原料组分中,对铁含量的要求显得非常重要。我们对其它原料的要求主要强调含铁量小于0.5%,铝含量大于35%,其它成分与漂珠相近。制品的指标控制:(1)SiO2控制在50%较好,过高或过低对烧成温度影响较大,坯体会发生较大的收缩和膨胀,使烧成难于掌握。同时,影响制品的质量合格率。(2)制品中的铝含量大于30%为好。因为它不但赋于制品的力学强度,而且还提高制品的耐火度。(3)制品中的Fe2O3含量应控制在5%以下,Fe2O3的含量大于5%就会对制品的耐火度及其它质量指标构成严重威胁。漂珠一般采用干燥的较好,便于混料水分的控制。在无条件的情况下,漂珠水分在20%以下也可使用,但必须把水分测量准确。漂珠还应采用浮选或筛选除去碳或其它杂质。结合粉的水分,应控制在2%以下。细度应在120目以上。塑性指数控制在8~12较合适。4.2 混料按照生产配方,将各组成材料逐一进行称重、计量,投入混料机之内,混料时间约12~15分钟。混料顺序是先投干料,干料混合均匀,再投其它结合剂和外加剂,待混料均匀即可压制混料水分的大小直接关系到成型质量的好坏。如果水分过高,不但延长干燥时间,而且会降低坯体的机械强度,还容易引起坯体压裂、变形及粘膜,出现麻点;水分过低易散,出现层裂,不便于成型,影响质量和进度。因此,控制水分是成型工艺中的关键。我们要求机械成型水分控制在12~15%。4.3 成型成型是生产中关键的工艺之一。选择好成型设备非常重要,它直接关系到成型数量与质量由于物料之间摩擦力很小,所以,一般不需要高压成型设备。我厂选择的液压式六块制砖机,总压力60吨,工作平稳,制砖效率高,成型质量好,此设备的特点是提升、搅拌、送料一体化,成型数量多,压力可调。缺点是检修、维护较困难,设备投资大。为了保证制品的尺寸,成型模具应放大尺寸。体积密度在0.7以上的半成品,尺寸放大2.8%;体积密度在0.7以下的半成品,尺寸放大2.5%。体积密度用加料高度来控制。4.4 干燥及烧成我厂采用倒焰窑、烘干、烧成一次完成。这就克服了搬动次数多,损耗大,费时费工的缺点。为了方便升温,提高产品质量,我们在倒焰窑不同的部位安装了6支铂铑铂热电偶来进行监测,使烧成温度控制在最佳状态,0.8及以下体积密度的漂珠砖,烧成温度控制在1180~1220℃;0.8以上密度的漂珠砖烧成温度控制在1240~1260℃范围内。这个范围是由制品的体积密度、原料的化学成分、矿物组成、粒度组成等确定的。5. 产品指标对五窑计万块漂珠砖的随机取样检测结果证明:我厂生产的漂珠砖,各项理化性能均超过国标,部分指标达到和超过国内同类产品的先进水平。技术指标如表4。7. 结束语宣威发电厂研制的漂珠砖系采用本厂粉煤灰漂珠精选、精制而成,且已形成系列化生产,填补了云南省空白,是变废为宝,节约土地、质优价廉的节能新产品。其各项技术指标均高于国家规定的标准指标,部分指标超过国内同类产品标准。该产品具有轻质高强、耐火度高、导热系数小、收缩率低等特点,是取代传统隔热耐火材料的新产品,可广泛用于冶金、建材、化工、电力生产种锅炉、工业窑炉的隔热保温,具有广阔的应用前景。
译成英文
3.2 漂珠砖烧成曲线
漂珠砖的烧成曲线为两条。一条体积密度小于价另一条体积密度大于1.0(如附图)。
综上所述,我们选择漂珠砖的配方及工艺条件是根据制品的体积密度来制定的,并经多次试验修正,研制和开发了体积密度0.4~1.5的系列漂珠砖。
4. 我厂生产漂珠砖的工艺特点
4.1 璐材料的化学组成与指标控制
由于原料的性质对制品性能起着决定性的作用,因此严格控制原料的指标尤为重要。
一般来说,原材料的化学组成应与漂珠的成分相近。由于我厂漂珠含铁成分较高,因而其它原料组分中,对铁含量的要求显得非常重要。我们对其它原料的要求主要强调含铁量小于0.5%,铝含量大于35%,其它成分与漂珠相近。制品的指标控制:(1)SiO2控制在50%较好,过高或过低对烧成温度影响较大,坯体会发生较大的收缩和膨胀,使烧成难于掌握。同时,影响制品的质量合格率。(2)制品中的铝含量大于30%为好。因为它不但赋于制品的力学强度,而且还提高制品的耐火度。(3)制品中的Fe2O3含量应控制在5%以下,Fe2O3的含量大于5%就会对制品的耐火度及其它质量指标构成严重威胁。
漂珠一般采用干燥的较好,便于混料水分的控制。在无条件的情况下,漂珠水分在20%以下也可使用,但必须把水分测量准确。漂珠还应采用浮选或筛选除去碳或其它杂质。
结合粉的水分,应控制在2%以下。细度应在120目以上。塑性指数控制在8~12较合适。
4.2 混料
按照生产配方,将各组成材料逐一进行称重、计量,投入混料机之内,混料时间约12~15分钟。混料顺序是先投干料,干料混合均匀,再投其它结合剂和外加剂,待混料均匀即可压制混料水分的大小直接关系到成型质量的好坏。如果水分过高,不但延长干燥时间,而且会降低坯体的机械强度,还容易引起坯体压裂、变形及粘膜,出现麻点;水分过低易散,出现层裂,不便于成型,影响质量和进度。因此,控制水分是成型工艺中的关键。我们要求机械成型水分控制在12~15%。
4.3 成型
成型是生产中关键的工艺之一。选择好成型设备非常重要,它直接关系到成型数量与质量由于物料之间摩擦力很小,所以,一般不需要高压成型设备。我厂选择的液压式六块制砖机,总压力60吨,工作平稳,制砖效率高,成型质量好,此设备的特点是提升、搅拌、送料一体化,成型数量多,压力可调。缺点是检修、维护较困难,设备投资大。为了保证制品的尺寸,成型模具应放大尺寸。体积密度在0.7以上的半成品,尺寸放大2.8%;体积密度在0.7以下的半成品,尺寸放大2.5%。体积密度用加料高度来控制。
4.4 干燥及烧成
我厂采用倒焰窑、烘干、烧成一次完成。这就克服了搬动次数多,损耗大,费时费工的缺点。为了方便升温,提高产品质量,我们在倒焰窑不同的部位安装了6支铂铑铂热电偶来进行监测,使烧成温度控制在最佳状态,0.8及以下体积密度的漂珠砖,烧成温度控制在1180~1220℃;0.8以上密度的漂珠砖烧成温度控制在1240~1260℃范围内。这个范围是由制品的体积密度、原料的化学成分、矿物组成、粒度组成等确定的。
5. 产品指标
对五窑计万块漂珠砖的随机取样检测结果证明:我厂生产的漂珠砖,各项理化性能均超过国标,部分指标达到和超过国内同类产品的先进水平。技术指标如表4。
7. 结束语
宣威发电厂研制的漂珠砖系采用本厂粉煤灰漂珠精选、精制而成,且已形成系列化生产,填补了云南省空白,是变废为宝,节约土地、质优价廉的节能新产品。其各项技术指标均高于国家规定的标准指标,部分指标超过国内同类产品标准。该产品具有轻质高强、耐火度高、导热系数小、收缩率低等特点,是取代传统隔热耐火材料的新产品,可广泛用于冶金、建材、化工、电力生产种锅炉、工业窑炉的隔热保温,具有广阔的应用前景。
3.2 漂珠砖烧成曲线
漂珠砖的烧成曲线为两条。一条体积密度小于价另一条体积密度大于1.0(如附图)。
综上所述,我们选择漂珠砖的配方及工艺条件是根据制品的体积密度来制定的,并经多次试验修正,研制和开发了体积密度0.4~1.5的系列漂珠砖。
4. 我厂生产漂珠砖的工艺特点
4.1 璐材料的化学组成与指标控制
由于原料的性质对制品性能起着决定性的作用,因此严格控制原料的指标尤为重要。
一般来说,原材料的化学组成应与漂珠的成分相近。由于我厂漂珠含铁成分较高,因而其它原料组分中,对铁含量的要求显得非常重要。我们对其它原料的要求主要强调含铁量小于0.5%,铝含量大于35%,其它成分与漂珠相近。制品的指标控制:(1)SiO2控制在50%较好,过高或过低对烧成温度影响较大,坯体会发生较大的收缩和膨胀,使烧成难于掌握。同时,影响制品的质量合格率。(2)制品中的铝含量大于30%为好。因为它不但赋于制品的力学强度,而且还提高制品的耐火度。(3)制品中的Fe2O3含量应控制在5%以下,Fe2O3的含量大于5%就会对制品的耐火度及其它质量指标构成严重威胁。
漂珠一般采用干燥的较好,便于混料水分的控制。在无条件的情况下,漂珠水分在20%以下也可使用,但必须把水分测量准确。漂珠还应采用浮选或筛选除去碳或其它杂质。
结合粉的水分,应控制在2%以下。细度应在120目以上。塑性指数控制在8~12较合适。
4.2 混料
按照生产配方,将各组成材料逐一进行称重、计量,投入混料机之内,混料时间约12~15分钟。混料顺序是先投干料,干料混合均匀,再投其它结合剂和外加剂,待混料均匀即可压制混料水分的大小直接关系到成型质量的好坏。如果水分过高,不但延长干燥时间,而且会降低坯体的机械强度,还容易引起坯体压裂、变形及粘膜,出现麻点;水分过低易散,出现层裂,不便于成型,影响质量和进度。因此,控制水分是成型工艺中的关键。我们要求机械成型水分控制在12~15%。
4.3 成型
成型是生产中关键的工艺之一。选择好成型设备非常重要,它直接关系到成型数量与质量由于物料之间摩擦力很小,所以,一般不需要高压成型设备。我厂选择的液压式六块制砖机,总压力60吨,工作平稳,制砖效率高,成型质量好,此设备的特点是提升、搅拌、送料一体化,成型数量多,压力可调。缺点是检修、维护较困难,设备投资大。为了保证制品的尺寸,成型模具应放大尺寸。体积密度在0.7以上的半成品,尺寸放大2.8%;体积密度在0.7以下的半成品,尺寸放大2.5%。体积密度用加料高度来控制。
4.4 干燥及烧成
我厂采用倒焰窑、烘干、烧成一次完成。这就克服了搬动次数多,损耗大,费时费工的缺点。为了方便升温,提高产品质量,我们在倒焰窑不同的部位安装了6支铂铑铂热电偶来进行监测,使烧成温度控制在最佳状态,0.8及以下体积密度的漂珠砖,烧成温度控制在1180~1220℃;0.8以上密度的漂珠砖烧成温度控制在1240~1260℃范围内。这个范围是由制品的体积密度、原料的化学成分、矿物组成、粒度组成等确定的。
5. 产品指标
对五窑计万块漂珠砖的随机取样检测结果证明:我厂生产的漂珠砖,各项理化性能均超过国标,部分指标达到和超过国内同类产品的先进水平。技术指标如表4。
7. 结束语
宣威发电厂研制的漂珠砖系采用本厂粉煤灰漂珠精选、精制而成,且已形成系列化生产,填补了云南省空白,是变废为宝,节约土地、质优价廉的节能新产品。其各项技术指标均高于国家规定的标准指标,部分指标超过国内同类产品标准。该产品具有轻质高强、耐火度高、导热系数小、收缩率低等特点,是取代传统隔热耐火材料的新产品,可广泛用于冶金、建材、化工、电力生产种锅炉、工业窑炉的隔热保温,具有广阔的应用前景。
题目解答
答案
3.2 Cenosphere brick firing curve
Cenosphere brick firing curve for the two. A bulk density less than the price of another bulk density greater than 1.0 (such as photos).
In summary, we have chosen floating bead formulations and process conditions brick is based on the volume density of products developed and revised by numerous experiments, research and development of the bulk density range of 0.4 to 1.5 floating bead brick.
4. I brick factory production process characteristics Floating Beads
4.1 Lu material chemical composition and Indicator Control
Because the nature of the product properties of raw materials play a decisive role, so strict control of raw materials index is particularly important.
In general, the chemical composition of raw materials should be similar to floating bead composition. As I plant Cenosphere higher iron components, which components of other materials, the requirements of the iron content is very important. We emphasized the requirements of other raw materials is less than 0.5% iron, aluminum content of greater than 35%, similar to other components with floating beads. Index Control products: (1) SiO2 50% control is better, too high or too low a greater impact on the firing temperature, green body to undergo greater contraction and expansion, so difficult to grasp the firing. Meanwhile, the passing rate affect the quality of products. (2) products in the aluminum content greater than 30% as good. Because it not only confers the mechanical strength of products, but also to improve products refractoriness. (3) products in the Fe2O3 content should be controlled below 5%, Fe2O3 content of greater than 5% of the products will be on refractoriness and other quality indicators pose a serious threat.
Commonly used floating bead dry well, easy control of mixing water. In the unconditional case, the floating beads of water below 20% can also be used, but water must be measured accurately. Floating bead filter should also be removed by flotation or carbon or other impurities.
Combination of powder moisture, should be controlled below 2%. Fineness should be more than 120 projects. Plasticity index to control the more appropriate in the 8 to 12.
4.2 Mixing
In accordance with the production formula, the weight of every component one by one, measure, within the input mixer, mixing for about 12 to 15 minutes. Mixing sequence is to first cast dry material, dry material mixed evenly, and then cast other binders and additives, can be suppressed even when mixing of water the size of the mixture directly related to the quality of a good or bad. If the water is too high, not only to extend the drying time and reduce the mechanical strength of green bodies, also easily lead to adobe fracturing, deformation and mucous membrane, there pitting; water is too low fugitive, spallation occurs, not easy to shape, influence quality and progress. Therefore, controlling moisture is the key to molding process. We demand that control the mechanical forming of water 12 to 15%.
4.3 Forming
Molding process is one of the key production. Select a good molding equipment is very important, it is directly related to the quantity and quality molding materials as friction between the small, therefore, generally do not need high-pressure molding equipment. I plant six selected hydraulic brick machine, the total pressure of 60 tons, smooth, brick, high efficiency, forming good quality, this device features enhanced mixing, feed integration, shape quantity, pressure adjustable. Drawback is that maintenance, maintenance more difficult, equipment investment. To ensure the product size, mold size should be enlarged. Bulk density of 0.7 or more semi-finished products in the size of amplification of 2.8%; bulk density of 0.7 the following semi-finished products, size of amplification of 2.5%. With feeding a high bulk density to control.
4.4 Drying and Firing
I plant with down draft kiln, drying, firing at once. This overcomes moving more often, loss of large, time consuming and shortcomings. In order to facilitate warming, improve product quality, we have different parts of down draft kiln installed six platinum and rhodium platinum thermocouple for monitoring, so that an optimal sintering temperature, bulk density of 0.8 and below the floating beads brick, sintering temperature at 1180 ~ 1220 ℃; 0.8 over the density floating bead brick firing temperature in the range of 1240 ~ 1260 ℃. The range of bulk density by the products, raw materials, chemical composition, mineral composition, grain size composition determined.
5. Product Index
The five brick kiln beads total 10,000 random sampling drift test results to prove: I plant floating bead brick, the physical and chemical properties are more than the national standard, some indicators to achieve and surpass the advanced level of similar products. Technical indicators such as Table 4.
7. Conclusion
Xuanwei power plant developed by Department of floating bead brick factory ash floating bead selection, refined, and has formed a series production, to fill gaps in Yunnan province, is turning waste into wealth, saving land, high quality price inexpensive energy-efficient new products. The technical indicators are higher than the national standard indicators, some indicators than similar products in the standard. The product has high strength, high refractoriness, thermal conductivity, small, low shrinkage characteristics, is to replace the traditional insulation refractories new products can be widely used in metallurgy, building materials, chemicals, power production kinds of boilers, industrial kilns of thermal insulation, and has broad application prospects.
Cenosphere brick firing curve for the two. A bulk density less than the price of another bulk density greater than 1.0 (such as photos).
In summary, we have chosen floating bead formulations and process conditions brick is based on the volume density of products developed and revised by numerous experiments, research and development of the bulk density range of 0.4 to 1.5 floating bead brick.
4. I brick factory production process characteristics Floating Beads
4.1 Lu material chemical composition and Indicator Control
Because the nature of the product properties of raw materials play a decisive role, so strict control of raw materials index is particularly important.
In general, the chemical composition of raw materials should be similar to floating bead composition. As I plant Cenosphere higher iron components, which components of other materials, the requirements of the iron content is very important. We emphasized the requirements of other raw materials is less than 0.5% iron, aluminum content of greater than 35%, similar to other components with floating beads. Index Control products: (1) SiO2 50% control is better, too high or too low a greater impact on the firing temperature, green body to undergo greater contraction and expansion, so difficult to grasp the firing. Meanwhile, the passing rate affect the quality of products. (2) products in the aluminum content greater than 30% as good. Because it not only confers the mechanical strength of products, but also to improve products refractoriness. (3) products in the Fe2O3 content should be controlled below 5%, Fe2O3 content of greater than 5% of the products will be on refractoriness and other quality indicators pose a serious threat.
Commonly used floating bead dry well, easy control of mixing water. In the unconditional case, the floating beads of water below 20% can also be used, but water must be measured accurately. Floating bead filter should also be removed by flotation or carbon or other impurities.
Combination of powder moisture, should be controlled below 2%. Fineness should be more than 120 projects. Plasticity index to control the more appropriate in the 8 to 12.
4.2 Mixing
In accordance with the production formula, the weight of every component one by one, measure, within the input mixer, mixing for about 12 to 15 minutes. Mixing sequence is to first cast dry material, dry material mixed evenly, and then cast other binders and additives, can be suppressed even when mixing of water the size of the mixture directly related to the quality of a good or bad. If the water is too high, not only to extend the drying time and reduce the mechanical strength of green bodies, also easily lead to adobe fracturing, deformation and mucous membrane, there pitting; water is too low fugitive, spallation occurs, not easy to shape, influence quality and progress. Therefore, controlling moisture is the key to molding process. We demand that control the mechanical forming of water 12 to 15%.
4.3 Forming
Molding process is one of the key production. Select a good molding equipment is very important, it is directly related to the quantity and quality molding materials as friction between the small, therefore, generally do not need high-pressure molding equipment. I plant six selected hydraulic brick machine, the total pressure of 60 tons, smooth, brick, high efficiency, forming good quality, this device features enhanced mixing, feed integration, shape quantity, pressure adjustable. Drawback is that maintenance, maintenance more difficult, equipment investment. To ensure the product size, mold size should be enlarged. Bulk density of 0.7 or more semi-finished products in the size of amplification of 2.8%; bulk density of 0.7 the following semi-finished products, size of amplification of 2.5%. With feeding a high bulk density to control.
4.4 Drying and Firing
I plant with down draft kiln, drying, firing at once. This overcomes moving more often, loss of large, time consuming and shortcomings. In order to facilitate warming, improve product quality, we have different parts of down draft kiln installed six platinum and rhodium platinum thermocouple for monitoring, so that an optimal sintering temperature, bulk density of 0.8 and below the floating beads brick, sintering temperature at 1180 ~ 1220 ℃; 0.8 over the density floating bead brick firing temperature in the range of 1240 ~ 1260 ℃. The range of bulk density by the products, raw materials, chemical composition, mineral composition, grain size composition determined.
5. Product Index
The five brick kiln beads total 10,000 random sampling drift test results to prove: I plant floating bead brick, the physical and chemical properties are more than the national standard, some indicators to achieve and surpass the advanced level of similar products. Technical indicators such as Table 4.
7. Conclusion
Xuanwei power plant developed by Department of floating bead brick factory ash floating bead selection, refined, and has formed a series production, to fill gaps in Yunnan province, is turning waste into wealth, saving land, high quality price inexpensive energy-efficient new products. The technical indicators are higher than the national standard indicators, some indicators than similar products in the standard. The product has high strength, high refractoriness, thermal conductivity, small, low shrinkage characteristics, is to replace the traditional insulation refractories new products can be widely used in metallurgy, building materials, chemicals, power production kinds of boilers, industrial kilns of thermal insulation, and has broad application prospects.