The utility model discloses an efficient dissolving equipment for waterborne polyurethane, which belongs to a macromolecule compound dissolution device. The jacket is set on the outer part of the dissolving kettle, which is divided into the upper part heat transfer jacket and the lower heat transfer jacket. Besides, a condenser plate is installed on the stirring shaft. Waterborne polyurethane provided by the utility model, desolution equipment adopts segmented heating mode, desolution can according to the actual changes of the material surface during decompression, the regulation kettle and the lower section of the heat transfer jacket temperature, can effectively reduce the adhesion of the upper liquid of the kettle wall, but also to energy saving the effect, and according to the actual production volume of material to adjust the clamping sleeve valve opening control, heat transfer area, reach the kettle wall, low energy consumption, less accumulation of resin desolution high efficiency. In addition, the condensate plate and external condensing device in the kettle can control the evaporation of high boiling point matter well, and solve a series of problems, such as long time, low efficiency, low purity and high energy consumption of the traditional dissolving equipment.
【技术实现步骤摘要】
一种水性聚氨酯高效脱溶设备
本技术涉及高分子化合物脱溶设备,具体涉及一种水性聚氨酯高效脱溶设备。
技术介绍
水性聚氨酯是以水代替有机溶剂作为分散介质的新型聚氨酯体系,也称水分散聚氨酯、水系聚氨酯或水基聚氨酯。水性聚氨酯以水为溶剂,无污染、安全可靠、机械性能优良、相容性好、易于改性等优点。目前,随着人们环保意识的增强,水性聚氨酯在国内被广泛应用。丙酮法合成水性聚氨酯是一种重要的生产方法,也是国内生产水性聚氨酯最为普遍采用的一种方法,该工艺合成水性聚氨酯具有生产易控制、适用性广、产品批次稳定和重现性好等优点。水性聚氨酯树脂的脱溶效果是影响其质量的一个重要因素,也是有效降低VOC,提高产品品质的关键环节。传统水性聚氨酯脱溶设备多存在脱溶工时长、能耗高、效率低以及脱溶将物料中水分带走过多,树脂粘度升高等问题。现有技术中,脱溶釜加热多采用夹套介质传热,而夹套多为一体式,加热传热面积固定不变,随着溶剂的脱除,物料液位下降,搅拌湍动的液面不断涂覆至液位上方釜壁而受热干燥粘附于釜体,并不断积厚。积厚的聚氨酯树脂层,热阻大,导热系数小,严重影响釜夹层的传热,增加了脱溶的能耗,延长了 ...
【技术保护点】
一种水性聚氨酯高效脱溶设备,包括脱溶釜釜体、套设在脱溶釜釜体外的夹套、以及在所述脱溶釜釜体内转动的搅拌轴,其特征在于,所述夹套分为上段传热夹套和下段传热夹套,所述上段传热夹套和下段传热夹套上均设置有与所述脱溶釜釜体相连通的冷热介质进口和冷热介质出口。
【技术特征摘要】
1.一种水性聚氨酯高效脱溶设备,包括脱溶釜釜体、套设在脱溶釜釜体外的夹套、以及在所述脱溶釜釜体内转动的搅拌轴,其特征在于,所述夹套分为上段传热夹套和下段传热夹套,所述上段传热夹套和下段传热夹套上均设置有与所述脱溶釜釜体相连通的冷热介质进口和冷热介质出口。2.根据权利要求1所述的水性聚氨酯高效脱溶设备,其特征在于,所述上段传热夹套和下段传热夹套外套设有保温层,所述冷热介质进口和冷热介质出口从该保温层穿出。3.根据权利要求1或2所述的水性聚氨酯高效脱溶设备,其特征在于,一冷凝板置于所述脱溶釜釜体内且安装在所述搅拌轴上并随该搅拌轴转动;所述脱溶釜釜体外安装有与该脱溶釜釜体相连通的冷凝装置。4.根据权利要求3所述的水性聚氨酯高效脱溶设备,其特征在于,所述冷凝板呈伞状。5.根据权利要求4所述的水性聚氨酯高效脱溶设...
【专利技术属性】
技术研发人员:朱宗奎,杨敏,吴丰,余辉华,
申请(专利权)人:黄山万丽美油墨科技有限公司,
类型:新型
国别省市:安徽,34
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。