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Main Advantages of the Microwave Heating

  • Speeding up: minutes instead of hours!!
  • Volume Energy transmission - cold vessel
  • ENERGY Savings, Room Savings
  • Efficiency 70%
  • Automatization
  • Safety *
  • Environment *

Comparing to the processes using the combustion


REFERENCES

The saving is brought through the principle that MW are absorbed only in dried material while the surrounding space remains cool. There is no energy consumption during stand-by phase of the line. Inner volume drying brings the same gradient orientation for moisture and temperature that improves the process. The energy budget assumes 1kW of microwave power to evaporate 1 liter of the water per 1 hour. The consumption of evaporating latent energy cannot be avoided by any method. 

Drying and sintering of ceramic products

Advantages and applications

Unique properties of the microwave heating found many application in ceramic industry - namely drying, sintering and cleaning from organic substances. Energy savings are achieved comparing with conventional methods. Drying timing is substantially (by digit order) shorter. The equipment is considerably smaller and need of forms is lower respectively. Very important is also decreasing of the reject rate by 30 % due to the fact that MW drying prevents creation of the surface crust and fissures. Regarding better drying uniformity there is possibility to treat the product of various bizzare shaping combining thick and thin walls and caverns. Better production readiness enables flexible order fulfillment, decreases inventory level. These benefits bring the quick investment payback.

Microwave drying was applied for white and molted ceramics and even for gyps forms used in ceramic industry. Microwaves are used in celadon industry as well as production of bricks, blocks, earthenware. The common equipment is adjustable and applicable for dishes, sanitary and technical ceramics etc. Although drying is the most often utilized application MW baking and sintering is also applied for certain high-end materials (such as SiC).