| 摘要 |
PCT No. PCT/DE86/00231 Sec. 371 Date Jan. 27, 1987 Sec. 102(e) Date Jan. 27, 1987 PCT Filed Jun. 4, 1986 PCT Pub. No. WO86/07303 PCT Pub. Date Dec. 18, 1986.A shaft seal assembly for an apparatus for continuous processing of very viscous media, in particular for producing high molecular weight polymers, having parallel shafts (1) carrying at least two cooperating processing tools (3), with which shafts feed and removal devices for the product to be processed and one reaction chamber (4), which can be subjected to a vacuum, are associated, has sealing means having at least one slide ring seal (46, 55), by which means the reaction chamber is sealed off, in the vicinity of the shaft ducting devices, from a confining-liquid chamber (11) located on the outside and surrounding the shaft ends, which chamber contains confining liquid. To avoid the entry of confining liquid into the reaction chamber and to improve the sealing action, the arrangement is selected such that on the side oriented toward the reaction chamber, adjoining the sealing means, each shaft (1) is surrounded by an inert gas cushion, which has a higher pressure than the confining liquid and is defined, sealed off from the reaction chamber (4), by means of housing parts (81) surrounding the shafts over a portion of their length as well as by means of the product to be processed, which surrounds the shafts and is under pressure. |
