摘要:
The invention relates to a kneader mixer comprising at least two shafts (2, 3) that are embodied as hollow shafts, on the surfaces of which kneading bars (4) are disposed on webs (5). The design of the shafts is selected such that the eigenfrequencies of the shafts are provided with a distance of at least 5 percent from the excitation frequencies. At least one of the shafts is preferably penetrated by a tempering medium, the inlet being located at one end and the outlet at the other end of the shaft. Preferably, the inventive kneader mixer further comprises at least one opening above the shafts, said opening being configured as a dome that is closed by means of a displacer (22). At least one opening for removing product is also provided. The cross section of said opening can be adjusted during operation.
摘要:
A continuous kneading apparatus and method are provided wherein discharge ports are provided at a plurality of positions of the barrel to discharge a kneaded product, and one of the plurality of the discharge ports is selected according to a desired kneading condition so as to discharge the kneaded product from only the selected discharge port. Another continuous kneading apparatus and method are provided wherein a plurality of charging ports are provided at a plurality of positions of the barrel to supply a material to be kneaded into the chamber, and one of the plurality of charging ports is selected according to a desired kneading condition. The kneading apparatuses and methods permit adjustment and control of a viscosity and a dispersion degree of a compounding agent over a wide range, and continuous kneading to achieve significant rationalization of a process for producing a kneaded product.
摘要:
Das Bohr- und/oder Meisselgerät weist in einem Gehäuse (30) ein Führungsrohr (36) und ein Schlagwerk (28) auf, wobei das Führungsrohr (36) zusammen mit dem Schlagwerk (28) unter Abstützung an Dämpfelementen gegenüber dem Gehäuse (30) versetzbar ist. Über ein Achsversatz-Ausgleichselement (33) wird die Drehbewegung vom fest im Gehäuse (30) angeordneten Antriebsmotor (31) verschleissfrei auf die damit gegenüber der Antriebswelle (32) des Antriebsmotors (31) versetzbare Kurbelwelle (34) des Schlagwerkes (28) übertragen.
摘要:
Granulating device for granulating polymer strands to pellets made of a polymer core being coated with at least one layer of a polymeric and/or non-polymeric material, wherein the granulating device comprises at least one melt providing device, a die having an inlet side and an outlet side, wherein the die comprises at least one inlet line for the polymer forming the polymer core being connected with a plurality of first-kind die channels, at least one inlet line for the polymeric and/or non-polymeric material being connected with a plurality of second-kind die channels, at least one inlet line and at least one outlet line for heating medium, wherein the at least one inlet line and the at least one outlet line for the heating medium are connected with each other by one or more heating channels, wherein preferably at least 50% of the combined die channels are at least partially surrounded by a heating channel, and at least one granulating blade being arranged on the outlet side of the die allowing to cut the strands exiting the die outlets into pellets.
摘要:
The invention relates to a method and an apparatus for manufacturing and testing workpieces, said apparatus being mountable on a system for mixing or melting materials or comprising said system; the apparatus includes application units and a replacement system that is designed to automatically replace application units in respect of the position or function thereof.
摘要:
The invention relates to a device comprising a substantially cylindrical housing (2) in a mixing region (7). Said housing comprises at least one outlet channel (15) having an outlet opening (6) in the mixing region (7) and at least one rotationally supported mixing shaft (4) having at least one discharge element (3) having an effective surface. The discharge element (3) can be guided past the outlet opening (6) when used properly, wherein a projection of the effective surface (8) parallel to the outlet channel axis covers the smallest outlet channel cross section of the outlet opening (6) at least once per revolution of the discharge element (3) by at least 45%, preferably by at least 50%, particularly preferably by at least 55%, and most particularly preferably by at least 60%. The projection of the effective surface (8) parallel to the outlet channel axis preferably covers the smallest outlet channel cross section of the outlet opening (6) at least once per revolution of same by at least 50%, particularly preferably by at least 55%, and most particularly preferably by at least 60%.
摘要:
The invention relates to a kneader mixer comprising at least two shafts (2, 3) that are embodied as hollow shafts, on the surfaces of which kneading bars (4) are disposed on webs (5). The design of the shafts is selected such that the eigenfrequencies of the shafts are provided with a distance of at least 5 percent from the excitation frequencies. At least one of the shafts is preferably penetrated by a tempering medium, the inlet being located at one end and the outlet at the other end of the shaft. Preferably, the inventive kneader mixer further comprises at least one opening above the shafts, said opening being configured as a dome that is closed by means of a displacer (22). At least one opening for removing product is also provided. The cross section of said opening can be adjusted during operation.