CROWN-SHAPED ELEMENT USED FOR PACKING OF COLUMN FOR EXCHANGING SUBSTANCE

摘要

PURPOSE: To provide a packing of matter-exchange column capable or assembling crown element at low cost. CONSTITUTION: By using a crown element 3 controlling matter for the packing of a matter-exchanging column an annular gap provided between the packing and the column wall 10 is largely roofed over by plural parts 30. At that time, the roofed-over parts 30 equipping with an end edge 300 of a contacting medium with the column wall are formed as a radial guiding face inclined toward the column center.