Drop forming methods and apparatus

Details Drop forming methods and apparatus Drop forming methods and apparatus

B - Operations, Transporting

01

J

B01J 2/20 (2006.01) B01J 2/02 (2006.01)

Patent

CA 2260665

A drop former includes a rotary screen forming an internal chamber into which a flowable chemical is introduced, the chamber being kept at atmospheric pressure. The screen has a thickness in the range of .1 to 1.2 mm. As the screen moves, the flowable chemical is caused to impinge against a pressure member disposed within the chamber to create a hydrodynamic force which forces the chemical through openings of the screen, thereby forming drops which are transferred onto a transfer surface. The drops harden into particles on the transfer surface and are subsequently removed therefrom and collected. The screen may be formed of a photochemically etched, or laser-drilled, metallic sheet.

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