Pressure-infiltration coating device and method applicable to porous ceramic matrix photocatalytic filler block

Abstract

The invention discloses a pressure-infiltration coating device and method applicable to a porous ceramic matrix photocatalytic filler block. The pressure-infiltration coating device is characterized by comprising a reaction tank body, a rotating shaft, an air inlet pipe, air outlet pipes, a support frame, a base, a motor and a reduction gearbox; the reaction tank body is a hollow cuboid; two end covers are mounted at the two ends of the reaction tank body, so as to seal the reaction tank body; the rotating shaft is fixed in the middles on two sides of the reaction tank body; the two ends of the rotating shaft is fixed on the support frame; two lining plates are mounted in the reaction tank body; the porous ceramic block is fixed between the lining plates; the air inlet pipe is mounted in the middle of one end cover; the tail end of the air inlet pipe is connected with an air inlet valve; the air outlet pipes are mounted on one side wall of the reaction tank body; the tail ends of the air outlet pipes are connected with air outlet valves; the motor and the reduction gearbox are fixed on a bracket on one side of the support frame, and connected with the rotating shaft; the motor can drive the reaction tank body to rotate around the rotating shaft. Through the adoption of the device and method, a porous ceramic matrix nanometer photocatalytic material is prepared, has the advantages that the coverage rate of an immobilized film is high and the combination is firm, and can be utilized for mass production.

Description

technical field [0001] The invention relates to a pressure infiltration coating device and method suitable for porous ceramic-based photocatalytic filler blocks, and belongs to the technical field of composite material forming. Background technique [0002] In recent years, with the continuous acceleration of the industrialization process, a large amount of waste water and waste gas have seriously affected human health and the living environment. Environmental pollution control has become one of the important problems facing and urgently to be solved in modern society. The methods currently being used such as chemical oxidation, physical adsorption, high-temperature incineration and microbial treatment have played a certain role in environmental protection and governance, but these methods have some shortcomings to varying degrees, such as low efficiency and inability to completely Control pollution, easily produce secondary pollution, high energy consumption and other issue...

AI Technical Summary

Problems solved by technology

However, due to the three-dimensional porous structure of porous ceramic materials, the precursor liquid can only be coated on the outer layer of the porous ceramic body by dipping or spraying, and the precursor liquid cannot penetrate into the pores inside the ceramic body, resulting in Nano-TiO can only be loaded on the outer layer of porous ceramics 2 thin film, but not inside, which greatly reduces the 2 The effective use area of ​​photocatalytic materials, especially for larger porous ceramic filler blocks, its nano-TiO 2 The loading area of ​​the film is lower, which also greatly hinders the porous ceramic-based nano-TiO 2 Promotion and use of photocatalytic materials

The present invention proposes a piezo-osmotic coating device and method suitable for porous ceramic-based photocatalytic filler blocks, which can effectively solve the problem that the precursor plating solution cannot penetrate into the core holes in the process of loading photocatalytic membranes on porous ceramics. and method can prepare porous ceramic photocatalytic materials with higher film coverage

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