Cellular automobile exhaust purification catalyst roasting furnace

Abstract

The invention discloses a cellular automobile exhaust purification catalyst roasting furnace which comprises a heat exchange device and a roasting section body, a hot air dispersion device is installed on the upper side of the interior of the roasting section body, the upper end of the hot air dispersion device is fixedly connected with a high-temperature fan, and an electric heating device is installed at the bottom of the hot air dispersion device; and a hot air pressurizing device is installed at the bottom of the electric heating device, a catalyst product is installed in the hot air pressurizing device, the catalyst product is placed on the surface of the conveying net belt and installed in the roasting section body through a net belt supporting frame, and meanwhile a waste gas exhaust pipeline is installed on the lower left side of the roasting section body. According to the cellular automobile exhaust purification catalyst roasting furnace, a sectional roasting mode is adopted, the temperature of each roasting section can be independently adjusted, the requirement for the roasting process temperature of various products can be met, the design size of the furnace body is shorter, and the equipment cost is lower.

Description

technical field [0001] The invention relates to the field of automobile tail gas purification catalysts, in particular to a honeycomb baking furnace for automobile tail gas purification catalysts. Background technique [0002] The main process of existing automobile exhaust gas purification catalyst is to coat chemical coating on a kind of cylindrical honeycomb ceramic carrier (such as figure 1 ), and then the product is dried and roasted, and the uniformity of coating roasting has a great influence on the purification performance of the catalyst. [0003] Existing catalyst roasting method, such as (application number: CN107469871A) the roasting method of automobile exhaust three-way catalyst, mainly utilizes the high temperature that electric heating produces, heats the outer peripheral wall and the end face of catalyst by the mode of thermal radiation, and then through heat conduction Slowly heat and bake the coating inside the catalyst. For cordierite ceramics and catal...

AI Technical Summary

Problems solved by technology

For cordierite ceramics and catalyst coatings of non-metallic materials, they are poor conductors of heat. The efficiency of this heat radiation and heat conduction method will be very low, and the firing speed will be very slow, especially the larger the diameter and height of the catalyst , the longer the heat conduction distance, the longer the firing time of the internal coating of the product will be.

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