Patent ID: 6530315
Filing Date: 2003-03-11
Classification: B30B

Abstract:
A diaphragm of a diaphragm press for separating liquid and solid materials (7) by action of a flowable pressure medium on the materials via the diaphragm, which is fastened in a pressing vessel (1) of the press and divides this pressing vessel into a pressure chamber (5) and a press chamber (4), said diaphragm comprising two parts (14, 13), both of which extend over the entire diaphragm area and are solidly connected to one another at only a number of separate connection points (39) on the diaphragm area, and of which one part (14) has essentially only a sealing function, while the other part (13) has essentially only a retention function, wherein the part (14) with the sealing function is disposed toward the press chamber and the part (13) with the retention function is disposed toward the pressure chamber, and wherein at the separate connection points (39) of these parts (14, 13), connecting elements (12) are provided, which have means (15) for anchoring flexible, ropelike drainage elements (6), which extend through the press chamber (4) between the diaphragm (3) and a jacket (18) of the pressing vessel of the press, and wherein the part with the retention function comprises a gas-permeable high-strength flexible material with little elongation under tension and the part with the sealing function comprises a flexible gas-tight plastic or rubber cloth, with or without textile reinforcement.