CN107185469A - 一种新型缩合反应釜 - Google Patents
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Abstract
本发明公开了一种新型缩合反应釜，包括罐体，罐体内设有与罐体内表面吻合的内衬，该内衬上端敞口，内衬内设有搅拌器，搅拌器通过搅拌轴与固定在罐体顶部的电机连接，内衬、搅拌器和搅拌轴均采用聚四氟乙烯材料制成，罐体顶部设有蒸汽进口、肼料进口、尾气出口和上层液出口，罐体底部设有母液出口，尾气出口与尾气抽取器连接，尾气抽取器与尾气回收装置连接，母液出口与液氨回收装置连接。本发明的反应釜内设有聚四氟乙烯内衬，搅拌装置也采用聚四氟乙烯材料制成，耐酸腐蚀，适用范围广，使用寿命长。
Description
技术领域
本发明涉及一种反应釜，具体涉及一种新型缩合反应釜。
背景技术
发泡剂是一种使物质成孔的发泡添加剂，广泛应用于拖鞋、鞋底、鞋垫、塑料壁纸、天花板、地板革、人造革、绝热、隔音材料等发泡。发泡剂的制备过程中需要用到反应釜，一般采用间歇釜制备，将所有反应物均在操作前一次加入，随着反应的进行，釜内温度、浓度和反应速度都随时间变化，一直进行至达到预定的转化率出料为止。目前发泡剂尤其是ADC发泡剂，主要采用尿素法合成，缩合过程主要采用酸缩合，对反应釜的要求高，现有反应釜在反应过程中容易被腐蚀，损坏率高。
发明内容
为弥补现有技术的不足，本发明提供一种设计合理的新型缩合反应釜。
本发明是通过如下技术方案实现的：
一种新型缩合反应釜，包括罐体，其特殊之处在于：罐体内设有与罐体内表面吻合的内衬，该内衬上端敞口，内衬内设有搅拌器，搅拌器通过搅拌轴与固定在罐体顶部的电机连接；所述内衬、搅拌器和搅拌轴均采用聚四氟乙烯材料制成；所述罐体顶部设有蒸汽进口、肼料进口、尾气出口和上层液出口，罐体底部设有母液出口；所述尾气出口与尾气抽取器连接，尾气抽取器与尾气回收装置连接；所述母液出口与液氨回收装置连接。
本发明的新型缩合反应釜，所述罐体外层设有夹套，夹套内配有蛇管，蛇管均匀的布满夹套，夹套上部设有与蛇管相通的进口和出口，进口高度低于出口高度。
本发明的新型缩合反应釜，所述罐体顶部与搅拌轴之间设有轴封装置，防止漏气。
本发明的新型缩合反应釜，所述罐体上部一侧设有安装支座，便于将罐体架起安装。
本发明的有益效果是：本发明的反应釜内设有聚四氟乙烯内衬，搅拌装置也采用聚四氟乙烯材料制成，耐酸腐蚀，并增加了尾气抽取装置和液氨回收装置，同时适用于无酸缩合，适用范围广，使用寿命长。
附图说明
附图1是本发明的结构示意图。
图中，1罐体，2夹套，3蛇管，4进口，5出口，6蒸汽进口，7肼料进口，8尾气出口，9上层液出口，10搅拌器，11搅拌轴，12轴封装置，13电机，14尾气抽取器，15尾气回收装置，16母液出口，17液氨回收装置，18内衬，19安装支座。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步详细的说明。
附图是本发明的一种具体实施方式。该实施例包括罐体1，罐体1上部一侧设有安装支座19，所述罐体1外层设有夹套2，夹套2内配有蛇管3，蛇管3均匀的布满夹套2，夹套2上部设有与蛇管3相通的进口4和出口5，进口4高度低于出口5高度；所述罐体1内设有与罐体1内表面吻合的内衬18，该内衬18上端敞口，内衬18内设有搅拌器10，搅拌器10通过搅拌轴11与固定在罐体1顶部的电机13连接，所述罐体1顶部与搅拌轴11之间设有轴封装置12；所述内衬18、搅拌器10和搅拌轴11均采用聚四氟乙烯材料制成；所述罐体1顶部设有蒸汽进口6、肼料进口7、尾气出口8和上层液出口9，罐体1底部设有母液出口16；所述尾气出口8与尾气抽取器14连接，尾气抽取器14与尾气回收装置15连接；所述母液出口16与液氨回收装置17连接。
反应前将反应物加入罐体1内的内衬18内，密封好，设定好反应温度，蛇管3内通入循环冷却水，打开搅拌器10，设定搅拌器10转速，当反应进行到一定程度时，可打开母液出口16的控制阀进行放料，放料过程要尽快完成，防止物料堵塞出口，尤其对于自催化反应，一定浓度的产物能够加快反应的进行，通过母液出口16放出部分物料，再通过肼料进口7完成快速加料，从而保持产物浓度相对恒定，有利于反应的进行。罐体1顶部的尾气抽取器14将尾气进行抽取并送入尾气回收装置，底部放出的母液可送入液氨回收装置17进行液氨回收。
Claims (4)
1.一种新型缩合反应釜，包括罐体（1），其特征在于：罐体（1）内设有与罐体（1）内表面吻合的内衬（18），该内衬（18）上端敞口，内衬（18）内设有搅拌器（10），搅拌器（10）通过搅拌轴（11）与固定在罐体（1）顶部的电机（13）连接；所述内衬（18）、搅拌器（10）和搅拌轴（11）均采用聚四氟乙烯材料制成；所述罐体（1）顶部设有蒸汽进口（6）、肼料进口（7）、尾气出口（8）和上层液出口（9），罐体（1）底部设有母液出口（16）；所述尾气出口（8）与尾气抽取器（14）连接，尾气抽取器（14）与尾气回收装置（15）连接；所述母液出口（16）与液氨回收装置（17）连接。
2.根据权利要求1所述的一种新型缩合反应釜，其特征在于：所述罐体（1）外层设有夹套（2），夹套（2）内配有蛇管（3），蛇管（3）均匀的布满夹套（2），夹套（2）上部设有与蛇管（3）相通的进口（4）和出口（5），进口（4）高度低于出口（5）高度。
3.根据权利要求1或2所述的一种新型缩合反应釜，其特征在于：所述罐体（1）顶部与搅拌轴（11）之间设有轴封装置（12）。
4.根据权利要求1或2所述的一种新型缩合反应釜，其特征在于：所述罐体（1）上部一侧设有安装支座（19）。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919808A (en) * | 1985-10-21 | 1990-04-24 | Allied-Signal Inc. | Semipermeable membrane compositions |
| CN104174349A (zh) * | 2014-08-18 | 2014-12-03 | 江西世龙实业股份有限公司 | 一种ac发泡剂蒸汽内传热式复合反应釜 |
| CN204338124U (zh) * | 2014-12-26 | 2015-05-20 | 山东易达利化工有限公司 | 气固相间歇釜式反应器 |
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- 2017-05-24 CN CN201710371559.9A patent/CN107185469A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919808A (en) * | 1985-10-21 | 1990-04-24 | Allied-Signal Inc. | Semipermeable membrane compositions |
| CN104174349A (zh) * | 2014-08-18 | 2014-12-03 | 江西世龙实业股份有限公司 | 一种ac发泡剂蒸汽内传热式复合反应釜 |
| CN204338124U (zh) * | 2014-12-26 | 2015-05-20 | 山东易达利化工有限公司 | 气固相间歇釜式反应器 |
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