METHOD FOR CALCINING CERAMICS AND CALCINING TOOL USED THEREFOR

摘要

PURPOSE:To obtain a product without dispersion in quality by providing shielding units on carts so as to prevent jetting streams of a combustion gas from directly contacting compacts and then installing passages for the jetting streams of the combustion gas in placing the compacts on the carts and calcining the compacts with the combustion gas. CONSTITUTION:Plural carts (12a) and (12b) are movably arranged in a tunnel kiln provided with burners (16a) and (16b) and shelves for carrying ceramic compacts 14 are provided on the carts. Shielding units 22 are simultaneously installed so as to prevent jetting streams of a combustion gas from directly contacting the ceramic compacts 14. Ceramic honeycomb structures, etc., having the obliquely divided intermediate parts are preferred as the shielding units 22. Passages 31 for the jetting streams of the combustion gas are further formed between the carts (12a) and (12b). The ceramic compacts 14 are then placed on the carts (12a) and (12b) and uniformly calcined with the combustion gas from the burners (16a) and (16b).