System for preparing gel bead

Abstract

The invention relates to a system for preparing gel ball, belonging to the technique that preparing ceramic gel ball. Said system comprises two parts as vibration dispersion system and gel system. Wherein, the vibration dispersion system comprises a signal controller 1, a vibrator 2, and an ejector; the gel system comprises a ammonia distributing ring 4, a gel post 5, a liquid groove 9, a baffle post 16, and a ball storage pot 11. The liquid of gel via cycle pump 14 can be cycled between the gel post 5, the liquid groove 9, and the baffle post 16; the sol via the ammonia distributing ring 4 is gelled into gel ball in the gel post 5; and the gel ball will flow into liquid groove 9 with liquid. Said system can confirm full gelling on the sol ball and reduce the pressure between gel balls, to avoid the distribution of flowing medium liquid on the liquid level. And it has simple operation and the application for continuous operation.

Description

technical field [0001] The invention relates to a system for dispersing liquid sol into balls and gelling the sol balls when preparing ceramic microspheres by a sol-gel method, in particular to a system for preparing oxide ceramic microspheres, which belongs to the preparation of ceramic gel balls device technology field. Background technique [0002] Oxide ceramic microspheres, especially those with a size of 0.1-3 mm, are widely used in many fields due to their excellent performance. Such as ZrO 2 、Al 2 o 3 , ZrO 2 ·SiO2 2 Ceramic balls as fine abrasive or catalyst support, UO 2 , PuO 2 , ThO 2 Ceramic microspheres are used as nuclear reactor fuel, etc. However, the currently used methods such as pressure molding and pelletizing are difficult to achieve the expected indicators, such as a large difference between the density and the theoretical density, uneven ball size distribution, uneven composition, and poor sphericity. Various oxide ceramic microspheres prepa...

AI Technical Summary

Problems solved by technology

[0007] Due to the limited space for storing gel balls, almost every batch of materials has to release the balls and replenish the ammonia water, resulting in interruption of work and seriously affecting production efficiency

[0008] For the problem of gel ball defect caused by insufficient gel caused by too short gel column, the goal can be achieved by increasing the length of the liquid column. For example, the gel column used in the gel equipment used by the German Chemical Research Institute is as high as 5-6m , the operation must be realized by erecting a platform in the middle, which not only brings inconvenience to the processing and on-site operation of the container, but also puts forward higher requirements for the plant and increases the cost of infrastructure

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