发明名称 |
Enhed til formning af strenge og fremgangsmåde til start af denne enhed |
摘要 |
A strand shaping part for connecting an extruder ( 1 ) to a granulating system has a number of supply channels ( 8 ) that can be flow-connected to the outlet ( 5 ) of the extruder ( 1 ). These supply channels lead to gear pumps ( 21 ) which have a delivery behaviour that is as constant as possible and with which the flow of melt to channels ( 11 ) can be blocked during start up. A single channel ( 11 ) leads from each gear pump ( 21 ) to a strand die ( 9 ) that can be formed by holes of a perforated plate ( 10 ) which is connected to a perforated plate head ( 7 ). Several gear pumps ( 21 ) are driven by a common shaft ( 24 ). The method for starting a granulating system provided with a strand shaping part of the aforementioned type provides that the extruder ( 1 ) is first started until a sufficient pressure is built up at the inlet ( 27 ) of each gear pump ( 21 ). Once this pressure is reached, each gear pump ( 21 ) is started again. In an underwater granulating system, the granulating blades ( 12 ) are rotationally driven last (FIG. 1 ). |
申请公布号 |
DK1838508(T3) |
申请公布日期 |
2011.01.31 |
申请号 |
DK20060700496T |
申请日期 |
2006.01.12 |
申请人 |
EREMA ENGINEERING RECYCLING MASCHINEN UND ANLAGENGESELLSCHAFT M.B.H. |
发明人 |
BACHER, HELMUT;SCHULZ, HELMUTH;WENDELIN, GEORG |
分类号 |
B29B9/06 |
主分类号 |
B29B9/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|