Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1977-11-30
1978-09-26
Christian, Leonard D.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
425203, B29B 110
Patent
active
041175484
ABSTRACT:
A vent for a devolatilizer includes a means defining a vent opening in the cage of the devolatilizer and a vent duct which communicates with the vent opening. Gas escapes into a cylindrical vent chamber in the vent duct. The chamber is cleaned by a vent screw which is rotated in the chamber and which includes a screw body of minimal diameter and a helical screw flight portion of a pitch which is sufficiently large such that the velocity of the vapor leaving the cage through the vent duct is maintained below a predetermined maximum vapor velocity. This maximum vapor velocity is set such that the amount of fine material which is entrained in the escaping vapor is minimized. A vapor return duct is connected to the vent chamber for extracting vapor from the chamber so that it may be recycled or disposed of. In one embodiment, the pitch of the vent screw flights is reduced in the upper portion of the vent chamber to accelerate the vapor and keep entrained in the gas any fines which may have escaped from the devolatilizer.
REFERENCES:
patent: 3684252 (1972-08-01), Nissle et al.
patent: 3737150 (1973-06-01), Otake
patent: 3781132 (1973-12-01), Latinen
patent: 3799234 (1974-03-01), Skidmore
patent: 3963558 (1976-06-01), Skidmore
patent: 4029300 (1977-06-01), Morishima
patent: 4060226 (1977-11-01), Schweller
Christian Leonard D.
The French Oil Mill Machinery Company
LandOfFree
Screw vent does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Screw vent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screw vent will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2094271