CN111364033A - 一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺 - Google Patents
一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺 Download PDFInfo
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Abstract
本发明属于精品钢材技术领域,涉及一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺。它包括以下步骤:(S1)将钢构件置于碱性脱脂液中浸泡去除表面附着的油脂,然后用清水冲洗干净;(S2)将钢构件置于硝酸溶液中浸泡去除表面锈斑,然后用清水冲洗干净;(S3)将钢构件置于钝化液中进行钝化处理,然后用清水冲洗干净并干燥;(S4)对钢构件表面进行电弧喷铝处理,使用电弧喷枪将铝丝加热熔融并由压缩气体吹成雾状喷涂于钢构件表面;(S5)对钢构件表面进行氢火焰钝化处理,使用氢火焰喷枪喷出欠燃氢火焰对对钢构件表面处理8‑12S;(S6)涂覆防腐涂料。通过本工艺处理得到的钢构件适用于垃圾焚烧炉,能够在恶劣的气氛环境中长期稳定使用。
Description
技术领域
本发明属于精品钢材技术领域,更具体地说,涉及一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺。
背景技术
随着城市化进程的快速推进,垃圾集中无害化资源化处理显得尤为重要。垃圾焚烧处理是一种相对简单且使用与大规模应用的垃圾处理方式。垃圾焚烧炉是焚烧处理垃圾的核心设备,垃圾在炉膛内燃烧,变为废气进入二次燃烧室,在燃烧器的强制燃烧下燃烧完全,再进入喷淋式除尘器,除尘后经烟囱排入大气。现代的垃圾焚烧炉主要由垃圾前处理系统、焚烧系统、烟雾生化除尘系统和辅助点火焚烧系统组成,集自动送料、分筛、烘干、焚烧、清灰、除尘、自动化控制于一体。
目前,垃圾焚烧炉需要消化多种类型的垃圾,包括医疗废弃物、生活垃圾和工业垃圾等,其成分复杂多变。垃圾焚烧炉燃烧使用的油品规格偏低且质量参差不齐。现有尾气处理装置难以做到尾气的深度进化。多方面的原因导致垃圾焚烧炉的结构件长期处于比较恶劣的周围环境中,对结构件的防腐性能提出了非常高的要求。但是,受到现有技术条件和成本的限制,垃圾焚烧炉钢构件的耐腐蚀性能难以满足长期可靠的使用要求。
发明内容
针对现有技术存在的不足,本发明提供一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺。
为了达到上述目的,本发明通过以下技术方案来实现:一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,包括以下步骤:
(S1)将钢构件置于碱性脱脂液中浸泡去除表面附着的油脂,然后用清水冲洗干净;
(S2)将钢构件置于硝酸溶液中浸泡去除表面锈斑,然后用清水冲洗干净;
(S3)将钢构件置于钝化液中进行钝化处理,然后用清水冲洗干净并干燥;
(S4)对钢构件表面进行电弧喷铝处理,使用电弧喷枪将铝丝加热熔融并由压缩气体吹成雾状喷涂于钢构件表面;
(S5)对钢构件表面进行氢火焰钝化处理,使用氢火焰喷枪喷出欠燃氢火焰对对钢构件表面处理8-12S;
(S6)涂覆防腐涂料。
进一步地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,步骤(S3)中,所述钝化液按重量计包括以下组分:去离子水100份、乙氧基化烷基硫酸钠25份、钒酸盐10份、氟锆酸盐9份、植酸5份、三氯化镧1份、硫酸铝3份、草酸钠1份。
优选地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,所述钒酸盐为正钒酸钠和钒酸锂摩尔比2:1的问混合物,所述氟锆酸盐为氟锆酸铵。
进一步地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,步骤(S4)中,电弧喷铝的电弧电压为30-35V,电弧电流为100-250A,压缩空气的压力为0.8-1.1Mpa,喷枪与钢构件表面的距离为150-180mm,喷涂角度为45-75°,喷枪移动速度为200-250mm/s,铝丝的输送速度2-3m/min。
进一步地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,步骤(S4)中,电弧喷铝后铝层厚度为100-120μm,表面粗糙度为Rz40μm。
进一步地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,步骤(S5)中,氢火焰中氢气与氧气的体积比为1:0.432-0.437,氢火焰温度为800-1150℃。
进一步地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,步骤(S6)中,所述防腐涂料按重量计包括以下组分:苯丙乳液100份、丙烯酸酯共聚乳液30-50份、自交联丙烯酸共聚物乳液20-30份、邻苯二甲酸二辛酯10-15份、有机锌络合物3-5份、钼酸锌10-20份、双酚F型环氧树脂30-40份、氧化丙烯酸酯5-10份、过硫酸铵3-4份、超支化聚醚-聚酯树脂2-5份、酮亚胺6-8份、金红型钛白粉30-60份。
优选地,上述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,自交联丙烯酸共聚物乳液为LR-8977型乳液;双酚F型环氧树脂可EPIKOTE862型树脂;超支化聚醚-聚酯树脂为以酚羟基和羧基封端的超支化聚醚-聚酯树脂。
有益效果:与现有技术相比,本发明提供一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,综合运用多种类型的表面处理手段,对钢构件表面进行深度钝化然后涂覆防腐涂料,形成内外结合的多重防护,能够保护钢构件在恶劣的气氛环境中长期稳定使用,尤其对垃圾焚烧炉钢构件的防腐具有较强的适用性。
具体实施方式
下面通过具体实施例,进一步阐明本发明,这些实施例只是为了说明问题,并不是一种限制。
实施例1
一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,包括以下步骤:
(S1)将钢构件置于碱性脱脂液中浸泡去除表面附着的油脂,然后用清水冲洗干净;
(S2)将钢构件置于硝酸溶液中浸泡去除表面锈斑,然后用清水冲洗干净;
(S3)将钢构件置于钝化液中进行钝化处理,然后用清水冲洗干净并干燥;
(S4)对钢构件表面进行电弧喷铝处理,使用电弧喷枪将铝丝加热熔融并由压缩气体吹成雾状喷涂于钢构件表面;
(S5)对钢构件表面进行氢火焰钝化处理,使用氢火焰喷枪喷出欠燃氢火焰对对钢构件表面处理8S;
(S6)涂覆防腐涂料。
本实施例中,步骤(S3)所述钝化液按重量计包括以下组分:去离子水100份、乙氧基化烷基硫酸钠25份、钒酸盐10份、氟锆酸盐9份、植酸5份、三氯化镧1份、硫酸铝3份、草酸钠1份。
本实施例中,所述钒酸盐为正钒酸钠和钒酸锂摩尔比2:1的问混合物,所述氟锆酸盐为氟锆酸铵。
本实施例中,步骤(S4)所述电弧喷铝的电弧电压为30V,电弧电流为100A,压缩空气的压力为0.8Mpa,喷枪与钢构件表面的距离为150mm,喷涂角度为45°,喷枪移动速度为200mm/s,铝丝的输送速度2m/min。
本实施例中,步骤(S4)中,电弧喷铝后铝层厚度控制在100-120μm范围内,表面粗糙度为Rz40μm。
本实施例中,步骤(S5)所述氢火焰中氢气与氧气的体积比控制在1:0.432-0.437范围内,氢火焰温度控制在800-1150℃范围内。
本实施例中,步骤(S6)所述防腐涂料按重量计包括以下组分:苯丙乳液100份、丙烯酸酯共聚乳液30份、自交联丙烯酸共聚物乳液20份、邻苯二甲酸二辛酯10份、有机锌络合物3份、钼酸锌10份、双酚F型环氧树脂30份、氧化丙烯酸酯5份、过硫酸铵3份、超支化聚醚-聚酯树脂2份、酮亚胺6份、金红型钛白粉30份。
本实施例中,自交联丙烯酸共聚物乳液为LR-8977型乳液;双酚F型环氧树脂可EPIKOTE862型树脂;超支化聚醚-聚酯树脂为以酚羟基和羧基封端的超支化聚醚-聚酯树脂。
实施例2
一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,包括以下步骤:
(S1)将钢构件置于碱性脱脂液中浸泡去除表面附着的油脂,然后用清水冲洗干净;
(S2)将钢构件置于硝酸溶液中浸泡去除表面锈斑,然后用清水冲洗干净;
(S3)将钢构件置于钝化液中进行钝化处理,然后用清水冲洗干净并干燥;
(S4)对钢构件表面进行电弧喷铝处理,使用电弧喷枪将铝丝加热熔融并由压缩气体吹成雾状喷涂于钢构件表面;
(S5)对钢构件表面进行氢火焰钝化处理,使用氢火焰喷枪喷出欠燃氢火焰对对钢构件表面处理12S;
(S6)涂覆防腐涂料。
本实施例中,步骤(S3)所述钝化液按重量计包括以下组分:去离子水100份、乙氧基化烷基硫酸钠25份、钒酸盐10份、氟锆酸盐9份、植酸5份、三氯化镧1份、硫酸铝3份、草酸钠1份。
本实施例中,所述钒酸盐为正钒酸钠和钒酸锂摩尔比2:1的问混合物,所述氟锆酸盐为氟锆酸铵。
本实施例中,步骤(S4)所述电弧喷铝的电弧电压为35V,电弧电流为250A,压缩空气的压力为1.1Mpa,喷枪与钢构件表面的距离为180mm,喷涂角度为75°,喷枪移动速度为250mm/s,铝丝的输送速度3m/min。
本实施例中,步骤(S4)中,电弧喷铝后铝层厚度控制在100-120μm范围内,表面粗糙度为Rz40μm。
本实施例中,步骤(S5)所述氢火焰中氢气与氧气的体积比控制在1:0.432-0.437范围内,氢火焰温度控制在800-1150℃范围内。
本实施例中,步骤(S6)所述防腐涂料按重量计包括以下组分:苯丙乳液100份、丙烯酸酯共聚乳液50份、自交联丙烯酸共聚物乳液30份、邻苯二甲酸二辛酯15份、有机锌络合物5份、钼酸锌20份、双酚F型环氧树脂40份、氧化丙烯酸酯10份、过硫酸铵4份、超支化聚醚-聚酯树脂5份、酮亚胺8份、金红型钛白粉60份。
本实施例中,自交联丙烯酸共聚物乳液为LR-8977型乳液;双酚F型环氧树脂可EPIKOTE862型树脂;超支化聚醚-聚酯树脂为以酚羟基和羧基封端的超支化聚醚-聚酯树脂。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进,这些改进也应视为本发明的保护范围。
Claims (8)
1.一种适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:包括以下步骤:
(S1)将钢构件置于碱性脱脂液中浸泡去除表面附着的油脂,然后用清水冲洗干净;
(S2)将钢构件置于硝酸溶液中浸泡去除表面锈斑,然后用清水冲洗干净;
(S3)将钢构件置于钝化液中进行钝化处理,然后用清水冲洗干净并干燥;
(S4)对钢构件表面进行电弧喷铝处理,使用电弧喷枪将铝丝加热熔融并由压缩气体吹成雾状喷涂于钢构件表面;
(S5)对钢构件表面进行氢火焰钝化处理,使用氢火焰喷枪喷出欠燃氢火焰对对钢构件表面处理8-12S;
(S6)涂覆防腐涂料。
2.根据权利要求1所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:步骤(S3)中,所述钝化液按重量计包括以下组分:去离子水100份、乙氧基化烷基硫酸钠25份、钒酸盐10份、氟锆酸盐9份、植酸5份、三氯化镧1份、硫酸铝3份、草酸钠1份。
3.根据权利要求2所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:所述钒酸盐为正钒酸钠和钒酸锂摩尔比2:1的问混合物,所述氟锆酸盐为氟锆酸铵。
4.根据权利要求1所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:步骤(S4)中,电弧喷铝的电弧电压为30-35V,电弧电流为100-250A,压缩空气的压力为0.8-1.1Mpa,喷枪与钢构件表面的距离为150-180mm,喷涂角度为45-75°,喷枪移动速度为200-250mm/s,铝丝的输送速度2-3m/min。
5.根据权利要求4所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:步骤(S4)中,电弧喷铝后铝层厚度为100-120μm,表面粗糙度为Rz40μm。
6.根据权利要求1所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:步骤(S5)中,氢火焰中氢气与氧气的体积比为1:0.432-0.437,氢火焰温度为800-1150℃。
7.根据权利要求1所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:步骤(S6)中,所述防腐涂料按重量计包括以下组分:苯丙乳液100份、丙烯酸酯共聚乳液30-50份、自交联丙烯酸共聚物乳液20-30份、邻苯二甲酸二辛酯10-15份、有机锌络合物3-5份、钼酸锌10-20份、双酚F型环氧树脂30-40份、氧化丙烯酸酯5-10份、过硫酸铵3-4份、超支化聚醚-聚酯树脂2-5份、酮亚胺6-8份、金红型钛白粉30-60份。
8.根据权利要求7所述的适用于垃圾焚烧炉钢构件的防腐耐磨处理工艺,其特征在于:自交联丙烯酸共聚物乳液为LR-8977型乳液;双酚F型环氧树脂可EPIKOTE862型树脂;超支化聚醚-聚酯树脂为以酚羟基和羧基封端的超支化聚醚-聚酯树脂。
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