METHOD OF DRYING CERAMIC ARTICLES Russian patent published in 2021 - IPC C04B33/30 F26B3/04 

FIELD: heating.

SUBSTANCE: invention relates to the field of equipment associated with annealing of natural materials and articles made therefrom, and can be used in production of construction materials, in particular, ceramic bricks. Method includes loading and movement in a drying chamber of bogies with raw brick, supply of hot and cold air into the chamber, control of temperature and humidity of the brick and its environment at different positions of bogies in the chamber, correcting hot and cold air supply processes based on control results. Control of the drying process is carried out using fuzzy logic, for which in the control and decision making system, adjustable fans are introduced, router with antenna, adjustable fan control units, fuzzy controller with knowledge base and fuzzification unit, logic unit and defuzzification unit. Adjustable fans are installed at outlets to drying chamber of pipelines of hot and cold air arranged evenly along length of drying chamber. Moisture content of the brick at each of the positions is determined by the strain measuring method, the control results are fed to the microcontroller input with fuzzy control, in which at each of positions moisture evaporation rate and temperature difference between medium and brick is determined. Data are transmitted to a fuzzification unit, where they are fuzzified, processed in a logic device based on the knowledge base and rules stored in the controller, obtained data are defuzzificated, converted into control actions, which are supplied to the input of fans and correct their operating modes in the optimal direction of the process, note here that to avoid or prevent occurrence of cracks in brick, dynamic balance is observed between amount of moisture evaporated from brick surface and its quantity suitable for bricks from moisture surface under action of diffusion processes.

EFFECT: automatic control of drying is provided, control process is simplified, its reliability and accuracy are improved with provision of quality of items.

1 cl, 6 dwg