一种小晶粒SAPO-34分子筛的制备方法及应用

一种小晶粒SAPO-34分子筛的制备方法及应用，本发明采用一步法，即在室温下将原料依次加入混合并搅拌一定时间形成初始凝胶，在适宜的温度下老化0-12h，然后提高温度晶化24-72h，最终获得具有均一孔道的SAPO-34。此方法采用廉价的三乙胺作为模板剂，一步法合成SAPO-34初始凝胶，大大节约了人工操作时间，获得的分子筛结晶度高，晶粒均一平均粒径为1.5～2.5μm。本发明产品在沸水中煮50h后仍具有完整的结构且结晶度良好。它还表现良好的抗高温水热老化性能，进一步改性可以作为柴油车尾气脱硝催化剂。此分子筛改性后制备的催化剂不但有较宽的脱硝活性窗口而且在800℃高温水热老化4h后低温催化活性明显提高。而且，在经过长时间高温水热老化之后它仍然具有良好的脱硝活性

Small-sized single-track travel mechanism

本实用新型涉及特种机器人的行走机构,具体地说是一种小型单轨道移动机构,包括底盘及两个相互独立、结构相同的转向架,每个转向架分别在轨道上运行,底盘分别与两个转向架相连;转向架包括驱动电机、固定架、主动行走轮、从动行走轮、导向轮及转盘,其中主动行走轮及从动行走轮相互独立、分别可转动地安装在固定架上,驱动电机固接在固定架上,主动行走轮与驱动电机的输出轴相连;在固定架的顶部设有转盘,底盘置于转盘上,转盘相对于底盘可转动,固定架的底部安装有多个导向轮。本实用新型适合各种弯轨形状,转弯半径小而灵活,转盘可相对于底盘有角度上的变化,避免移动机构自身干涉,实现了移动机构在各种弯道上的平稳运行

一种小型单轨道移动机构

Disclosed in the present invention is a moving mechanism of special robots, more specifically a small single-rail moving mechanism. The mechanism comprises a chassis (2) and two independent bogies (1) having the same structure, wherein each bogie (1) runs on a rail (3) independently, and the chassis (2) is connected with the two bogies (1) respectively the bogie (1) comprises a driving motor (4), a fixing frame (5), driving running wheels (6), slave running wheels (7), guide wheels (8) and a rotating disk (9), wherein the driving running wheels (6) and the slave running wheels (7) are independent of each other and are mounted on the fixing frame (5) respectively, the driving motor (4) is fixedly connected on the fixing frame (5), and the driving running wheels (6) is connected with the output shaft of the driving motor (4) the rotating disk (9) is provided on the top of the fixing frame (5). The chassis (2) is arranged on the rotating disk (9), and the rotating disk (9) can rotate relative to the chassis (2). Several guide wheels (8) are mounted on the bottom of the fixing frame (5). The small single-rail moving mechanism is suitable for a variety of shapes of curved rails, and its turning radius is small and flexible. The angle of the rotating disk (9) relative to the chassis (2) can be changed, so the interference within the moving mechanism is avoided, and the smooth running of the moving mechanism on variety kinds of curved rails can be realized.</p