Circulating drying system for drying denitration agent by using natural gas heat source

Abstract

The invention discloses a circulating drying system for drying a denitration agent by using a natural gas heat source. The system comprises a drying chamber, an air guide module, a heat exchange module, a heating module, a measuring module, an air return module and an air outlet module; the air guide module is used for distributing air blown into the drying chamber from an air outlet; the heating module is used for fully combusting natural gas to generate CO2 and H2O and communicates with the heat exchange module to provide a heat source for the heat exchange module; the heat exchange module exchanges heat energy of all high-temperature gas generated after natural gas is combusted through the heat exchange module in a mode that gas is heated by gas; the measuring module is used for measuring the temperature and humidity in the drying chamber so as to monitor indoor temperature and humidity changes; the air return module is used for conducting air return and reheating on hot gas in the drying chamber; and the air outlet module is used for feeding hot air produced by the heat exchange module into the drying chamber. Through the air guide module, a drying speed of a catalyst in the drying chamber is consistent, and local areas can be independently and rapidly dried.

Description

technical field [0001] The invention relates to the technical field of drying treatment, in particular to a circulation drying system for drying a denitration agent by utilizing a natural gas heat source. Background technique [0002] Use natural gas as the primary drying heat source, heat the air and then circulate hot air to dry the extruded denitrification catalyst wet billet. Generally speaking, only 20-30°C is required for drying. The self-heating material with titanium dioxide in the composition can generate heat to 90°C. The traditional heating method uses raw coal and heavy oil as fuel. These fuels will produce sulfur dioxide, smoke, carbon dioxide and other harmful substances during the combustion process. Direct combustion heating will affect the quality of the product, pollute the air, and there are potential safety hazards, so only The traditional way of indirect heat exchange is adopted. The way of indirect heat exchange determines that its heat loss is relati...

AI Technical Summary

Problems solved by technology

However, the distribution of the air outlets of the existing circulating fans is uneven, and the desiccant near the air outlets receives more wind force, and the drying speed of the catalyst in the drying chamber is uneven, and local rapid drying of local catalysts in the drying chamber cannot be performed.

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