CN106336230A - 一种水泥窑用燃烧器预制件及制备方法 - Google Patents

一种水泥窑用燃烧器预制件及制备方法 Download PDF

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CN106336230A
CN106336230A CN201610732096.XA CN201610732096A CN106336230A CN 106336230 A CN106336230 A CN 106336230A CN 201610732096 A CN201610732096 A CN 201610732096A CN 106336230 A CN106336230 A CN 106336230A
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山国强
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Abstract

本发明公开了一种水泥窑用燃烧器预制件及制备方法，这种水泥窑用燃烧器预制件由镁铝尖晶石、Si2Al4O4N4、Al3BC3、锆尖晶石，碳酸锶粉，碳化钒粉，氧化铝微粉，纯铝酸钙水泥，复合粉，外加剂和氯化铝溶液组成。采用自流浇注的方法成形，经养护、干燥后、在高温下进行热处理。与传统浇注料相比，这种产品具有自流施工，自消泡，抗剥落，耐磨性高，寿命长等特点，可以在各种水泥行业所用的回转窑的燃烧器部位得到更加广泛的应用。

Description

一种水泥窑用燃烧器预制件及制备方法
本申请是申请号为201510071466.5的分案申请。
技术领域
本发明涉及一种水泥窑用燃烧器预制件及制备方法，尤其涉及煅烧矿行业，水泥行业，石灰行业，冶金行业所用的水泥窑燃烧器预制件及制备方法。
背景技术
传统的燃烧器通常都是采用散装料在使用现场进行振动浇注成型，从而延长了停窑的周期，施工周期长、现场劳动强度大、施工时加水多、养护周期长、最终产品寿命短，因而影响了水泥窑的正常生产。同时现有浇注料产品也很难满足在燃烧器使用过程中的抗剥落、寿命短，施工质量偏析不稳定等问题。预制件是指改变供货样式：燃烧器在耐火厂里完成浇注、养护及热处理，然后把该产品拉到厂家直接使用，该种产品的开发彻底解决了传统不定形耐火浇注料的现场施工弱点。
发明内容
本发明的目的就是为了解决产品不抗剥落，抗热震性差，寿命短及施工质量差的缺陷，提供一种水泥窑用燃烧器预制件及制备方法，制成的预制件产品能够满足水泥窑燃烧器要求的抗剥落，长寿命，热震稳定性高，施工方便，质量稳定等问题。
为解决上述技术问题，本发明采用如下技术方案：预制件由镁铝尖晶石、Si2Al4O4N4、Al3BC3、锆尖晶石，碳酸锶粉，碳化钒粉，氧化铝微粉，纯铝酸钙水泥，复合粉，外加剂和氯化铝溶液组成。
原料中镁铝尖晶石、Si2Al4O4N4、Al3BC3、锆尖晶石，碳酸锶粉，碳化钒粉，氧化铝微粉，纯铝酸钙水泥，复合粉的重量份数为：镁铝尖晶石15-20份、Si2Al4O4N4 20-25份、Al3BC37-12份，锆尖晶石20-28份，碳酸锶粉1-3份，碳化钒粉2-4份，氧化铝微粉8-12份，纯铝酸钙水泥3-7份，复合粉0-1份。氯化铝溶液、外加剂的加入量分别占上述总重量的百分比为：氯化铝溶液9%，外加剂为0.2-0.3%；复合粉由白榴石粉和钾霞石粉组成，其重量比1:1。
所述的外加剂为磺化三聚氰胺甲醛树脂，异辛醇，5-磺酸水杨酸，三者重量比为2:1:1。所述的氯化铝溶液密度为1.25克/立方厘米，PH3.5，粘度0.006KPa.s。
将上述各原料按以上比例进行配料，混合均匀后，采用自流浇注的方法成形，经养护、干燥后，在高温下进行热处理，得到这种燃烧器用预制件。
本发明的制备方法为：
步骤一、混料及搅拌，按配比配好原料，加入外加剂，在搅拌机充分搅拌均匀，搅拌均匀后再加入氯化铝溶液，自流值控制200 mm即可；步骤二、成形、养护及干燥，成形：将模具安装好，加入搅拌好的搅拌混合料，靠混合料的自重和表面张力摊平；表面多余的料抹去；养护：将自流浇注好的试样和模具放入25℃恒温室，经检查硬化后脱模，脱模后再自然养护48小时；干燥：养护好的试样在电窑内进行110℃24h烘干处理，关闭电源待其冷却到室温；步骤三、热处理，干燥后的试样放入加热炉中，按照5℃/min开始升温到300℃，再以10℃/min的速度升到1000℃，并保温3小时；结束后，自然冷却到室温，出炉后得到这种水泥窑用预制件。
所得预制件的体积密度在2.7g/cm3，常温抗折强度25MPa，耐磨小于4，使用寿命在18个月以上。
本发明得到了一种抗剥落，长寿命，自流施工，自消泡的水泥窑用燃烧器预制件。该预制件耐高温，抗剥落，长寿命，提高了水泥窑行业的运转率，施工时自流浇注，气孔可以自行消除，避免了振动浇注料产生的质量偏析，改变了原先散装产品的缺点，该种产品的开发彻底解决了传统不定形耐火浇注料的现场施工弱点。
具体实施方式
实施例1，镁铝尖晶石16份、Si2Al4O4N425份、Al3BC312份，锆尖晶石20份，碳酸锶粉3份，碳化钒粉4份，氧化铝微粉12份，纯铝酸钙水泥7份，复合粉1份。加入外加剂，充分混合均匀后，然后再加入氯化铝溶液。氯化铝溶液、外加剂的加入量分别占上述总重量的百分比为：氯化铝溶液9%，外加剂为0.3%。
实施例2，镁铝尖晶石17份、Si2Al4O4N424份、Al3BC312份，锆尖晶石20份，碳酸锶粉3份，碳化钒粉4份，氧化铝微粉12份，纯铝酸钙水泥7份，复合粉1份。加入外加剂，充分混合均匀后，然后再加入氯化铝溶液。氯化铝溶液、外加剂的加入量分别占上述总重量的百分比为：氯化铝溶液9%，外加剂为0.2%。
实施例3，镁铝尖晶石18份、Si2Al4O4N423份、Al3BC312份，锆尖晶石21份，碳酸锶粉3份，碳化钒粉4份，氧化铝微粉12份，纯铝酸钙水泥7份，复合粉0份。加入外加剂，充分混合均匀后，然后再加入氯化铝溶液。氯化铝溶液、外加剂的加入量分别占上述总重量的百分比为：氯化铝溶液9%，外加剂为0.3%。
实施例1，2，3的后续制备工艺为：：将模具安装好，加入搅拌好的搅拌混合料，靠混合料的自重和表面张力摊平；表面多余的料抹去；养护：将自流浇注好的试样和模具放入25℃恒温室，经检查硬化后脱模，脱模后再自然养护48小时；干燥：养护好的试样在电窑内进行110℃24h烘干处理，关闭电源待其冷却到室温；步骤三、热处理，干燥后的试样放入加热炉中，按照5℃/min开始升温到300℃，再以10℃/min的速度升到1000℃，并保温3小时；结束后，自然冷却到室温，出炉后得到这种水泥窑用燃烧器预制件。

Claims (3)

1.一种水泥窑用燃烧器预制件，其特征在于：由镁铝尖晶石、Si2Al4O4N4、Al3BC3、锆尖晶石，碳酸锶粉，碳化钒粉，氧化铝微粉，纯铝酸钙水泥，复合粉，外加剂和氯化铝溶液组成；其中，镁铝尖晶石15-20份、Si2Al4O4N4 20-25份、Al3BC37-12份，锆尖晶石20-28份，碳酸锶粉1-3份，碳化钒粉2-4份，氧化铝微粉8-12份，纯铝酸钙水泥3-7份，复合粉0-1份；氯化铝溶液、外加剂的加入量分别上述总重量的百分比为：氯化铝溶液9%，外加剂为0.2-0.3%；复合粉由白榴石粉和钾霞石粉组成，其重量比1:1；外加剂为磺化三聚氰胺甲醛树脂，异辛醇，5-磺酸水杨酸，三者重量比为2:1:1。
2.根据权利要求1所述的一种水泥窑用燃烧器预制件，其特征在于：所述的氯化铝溶液密度为1.25克/立方厘米，PH3.5，粘度0.006KPa.s。
3.根据权利要求1所述的一种水泥窑用燃烧器预制件的制备方法，其特征在于：步骤一、混料及搅拌，按配比配好原料，加入外加剂，在搅拌机充分搅拌均匀，搅拌均匀后再加入氯化铝溶液，自流值控制200 mm即可；步骤二、成形、养护及干燥，成形：将模具安装好，加入搅拌好的搅拌混合料，靠混合料的自重和表面张力摊平；表面多余的料抹去；养护：将自流浇注好的试样和模具放入25℃恒温室，经检查硬化后脱模，脱模后再自然养护48小时；干燥：养护好的试样在电窑内进行110℃24h烘干处理，关闭电源待其冷却到室温；步骤三、热处理，干燥后的试样放入加热炉中，按照5℃/min开始升温到300℃，再以10℃/min的速度升到1000℃，并保温3小时；结束后，自然冷却到室温，出炉后得到这种水泥窑用燃烧器预制件。
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