Preparation process of a ceramic composite fiber catalytic filter tube

Abstract

The invention relates to a preparation process of a ceramic composite fiber catalytic filter tube, which includes pretreating the fiber to prepare the required slurry; injecting the slurry into the mold of the ceramic composite fiber filter tube through a pressure grouting port above the mold , to obtain the blank tube of the ceramic composite fiber filter tube; the central control unit controls the vacuum pump to suck the blank tube of the ceramic composite fiber filter tube to obtain the shaped ceramic composite fiber filter tube blank tube; the shaped ceramic composite fiber filter tube blank tube is placed on In the catalyst sol, soaking, drying, drying and sintering are carried out under vacuum conditions, and the preparation of the ceramic composite fiber catalytic filter tube is completed after drying. The central control unit determines the reference value of the slurry according to the fiber length, PH value and solid phase content of the slurry, the grouting pressure of the grouting unit and the holding time of the grouting pressure, the suction pressure of the vacuum pump set under the mold and the suction time are determined, and the parameters are adjusted according to the actual preparation to improve the preparation efficiency.

Description

technical field [0001] The invention relates to the technical field of filter tube preparation, in particular to a preparation process of a ceramic composite fiber catalytic filter tube. Background technique [0002] In chemical industry, petroleum, metallurgy, electric power and other industries, high temperature dusty gas is often produced. According to the temperature, flue gas can be divided into high-temperature flue gas (>600°C), medium-temperature flue gas (230-600°C) and low-temperature flue gas (<230°C), which is the division of flue gas in thermal power engineering. However, there is no uniform standard for the temperature classification of filtered flue gas. At present, it is generally considered that flue gas above 220°C is called high-temperature flue gas. Industrial high-temperature flue gas is not only high in temperature, but also contains a large amount of dust and harmful chemical substances of fine impurity particles, which is the cause of many prob...

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