Drying of clayware

Details Drying of clayware Drying of clayware

1987-04-23

1989-05-09

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

For hollow article

34 68, F26B 2500

Patent

active

048276294

ABSTRACT:
A dryer for articles of sanitary ware comprises a sealable chamber (12) in which each cast clay article (10) is located in position below a tube (14) and between slots (16) at floor level, dampers (18) being provided for the slots (16). During a first drying phase of some one to two hours after demoulding, the articles (10) are subjected to space drying by gentle movement of heated air passing into the chamber (12) through openings (26). At the end of the first phase of initial general conditioning, the tubes (14) are positioned to extend internally of the articles (10), and the dampers (18) allow heated air to pass into the chamber (12) through the slots (16). Suction is applied to the tubes (14) so that the heated air is drawn from the slots (16) across the external and subsequently internal surfaces of the articles (10) into the tubes (14). This causes articles to dry evenly, thoroughly, and quickly without distortion or cracking.

REFERENCES:
patent: 832473 (1906-10-01), Fromont
patent: 2666270 (1954-01-01), Blanchard
patent: 4285141 (1981-08-01), Wedgwood

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