Kier (industrial)

A kier or keeve (or similar spellings) is a large circular boiler or vat used in bleaching or scouring cotton fabric.

They were usually spherical, sometimes cylindrical, and some were recycled from old boiler shells.

[1] Kier, the cylindrical-shaped vessel, straight, with egg-shaped ends made of boiler may have the capacity to process one to three tons of material at a time.

[3][4][5] Open kiers were also used with temperatures below 100°C (at atmospheric pressure).

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