摘要:
It is described a method and an arrangement (100, 200, 300, 400, 500, 600) for degassing a moulding material (111, 211, 311, 411, 511, 611), the arrangement comprising: a container (521, 621); a stack of a plurality of plates (101, 201, 301, 401, 501, 601) within the container (521, 621), the plates being rotatable relative to the container (521, 621) and being arranged on top of each other and spaced apart (d) from each other; and a supply system (109) for supplying the moulding material onto surfaces (103, 203, 303, 403, 503, 504, 603, 604) of the plates (101, 201, 301, 401, 501, 601) for degassing.
摘要:
Method and system for transferring a volatile substance from a first liquid to a second liquid. The system includes: - at least one first reservoir (1) for receiving first liquid (A); - at least one second reservoir (2) for receiving second liquid (B); - at least one airtight transfer space (3) overhead of the at least one first and at least one second reservoir (1,2); -at least a first liquid conveyor (5) for generating a film of first liquid (A) from liquid received in said first reservoir (1), and for conveying that film along said airtight transfer space (3); and -at least a second liquid conveyor (6) for generating a film of second liquid (B) from liquid received in said second reservoir (2), and for conveying that film along said airtight transfer space (3).
摘要:
A method and apparatus for exhausting gas from a coating material. The coating material is fed in the bottom part area of a drum (3) rotating around an essentially vertical axis inside a vacuum tank (1), whereby the rotating motion of the drum causes the coating material to rise up the inner wall of the drum and to discharge from the upper edge of the drum as a thin film against the inner wall of a vacuum tank, wherefrom the coating material flows downwards. The coating material is arranged to rise up the wall of the drum stepwise, so that the coating material will form a thin veil-like film on at least two different step levels (10-12), whereupon the gas bubbles in the coating material will break and be discharged from the coating material.
摘要:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum effizienten Mischen von Polymerschmelzen mit Additiven, die verbesserte optische Eigenschaften, insbesondere Yellowness Index (YI) aufweisen. Desweiteren erlauben die Vorrichtung und das Verfahren eine Additivierung mit gleichzeitigem Entgasen von lösungsmittelhaltigen Polycarbonatschmelzen, insbesondere aus aromatische Chlorkohlenwasserstoffe enthaltenden Polycarbonatschmelzen. Durch Anwendung des erfindungsgemäßen Verfahrens werden Polycarbonate mit niedrigen Restwerten an flüchtigen Bestandteilen aus lösungsmittelhaltigen Polymerschmelzen erzeugt, die verbesserte optische Eigenschaften, insbesondere Yellowness Index (YI) aufweisen. Die Vermischung der Polymerschmelze mit Additiven und/oder Farbmitteln erfolgt erfindungsgemäß nach der Entgasung in der Druckaufbauzone des Extruders und/oder in einem nachgeschalteten Statikmischer (16), wobei vorzugsweise eine Zahnradpumpe (15) zum Druckaufbau zwischen Extruder und Statikmischer geschaltet wird.
摘要:
A groundwater radon reduction apparatus is provided. The groundwater radon reduction apparatus includes: a housing (10) in which groundwater falls down; a rotating member (20) installed in the housing (10) and rotated by a falling force of the groundwater to form the groundwater into water drops; a plurality of power transmission members (30) connected to both ends of the rotating member (20) to transmit power, and receiving the rotating force of the rotating member (20); and a plurality of ventilation units (40) coupled to one ends of the power transmission members inside the housing (10), respectively, and rotated together with the power transmission members (30) by the rotation force of the rotating member (20) to discharge radon gases within the water drops to the outside.
摘要:
A liquid/gas helical separator operates on a combination of centrifugal and gravitational forces. The separator includes a primary separator formed basically by an expansion chamber, a secondary separator formed basically by a helix for directing the flow, a tertiary separator which consists of a reservoir or gravitational-separation tank and of a transition region between the primary and secondary separators, which consists of at least two variable-pitch helixes whose inclination varies from an angle of 90 DEG to the angle of inclination of the constant-pitch helix of the secondary separator with the function of providing a gentler flow of the liquid phase at the transition between the first two separators.