Processing

Please wait...

Settings

Settings

Goto Application

1. WO2002018282 - PROCESS AND PUMP FOR HOMOGENIZING MOLTEN GLASS

Publication Number WO/2002/018282
Publication Date 07.03.2002
International Application No. PCT/US2001/027086
International Filing Date 30.08.2001
Chapter 2 Demand Filed 01.03.2002
IPC
B01F 5/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers; Mixers for falling materials, e.g. solid particles
B01F 5/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers; Mixers for falling materials, e.g. solid particles
10Circulation mixers
B01F 5/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers; Mixers for falling materials, e.g. solid particles
12Pump mixers
B01F 7/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles; Kneaders
C03B 5/187 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
5Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
18Stirring devices; Homogenisation
187with moving elements
C03B 7/092 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
7Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob
08Feeder spouts, e.g. gob feeders
092Stirring devices; Homogenisation
CPC
B01F 2005/0011
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers
0002Direction of flow or arrangement of feed and discharge openings
0008Radial flow
0011from the center to the circumference, i.e. centrifugal flow
B01F 2005/0022
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers
0002Direction of flow or arrangement of feed and discharge openings
0022Reverse flow, i.e. flow changing substantially 180° in direction
B01F 5/104
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers
10Circulation mixers ; , e.g. at least part of the mixture being discharged from, and reintroduced into, a receptacle, e.g. with rotary stirrer
104provided with rotary stirrer
B01F 5/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
5Flow mixers
12Pump mixers ; , i.e. the mixing taking place in the pump itself
B01F 7/00908
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00908Pipe mixers, i.e. mixing material flowing continuously through pipes, e.g. column mixers
C03B 5/187
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
5Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
18Stirring devices; Homogenisation
187with moving elements
Applicants
  • PITBLADDO, Richard [US]/[US]
Inventors
  • PITBLADDO, Richard
Agents
  • MICHAELS, Christopher
Priority Data
60/228,99530.08.2000US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS AND PUMP FOR HOMOGENIZING MOLTEN GLASS
(FR) PROCEDE ET POMPE D'HOMOGENEISATION DE VERRE FONDU
Abstract
(EN)
A molten glass pump preferably includes one or more pumps which form either a single-stage apparatus or are combined in series to form a multi-stage apparatus. The exact configuration depends on the required process pressure and the required degree of glass homogenization. Examples of the invention include an auger pump and a mixing auger pump which have varying degrees of mixing action, as well as a homogenizing pump which provides some pumping action but is primarily a homogenizer. All three pumps preferably include a centerline flow recirculation feature which remixes inhomogeneous glass into the incoming glass stream. A counter-rotating sleeve, which straightens the glass flow exiting the apparatus and provides an additional flow recirculation path, is also preferably included. Methods of delivering a pressurized glass melt to a glass forming apparatus using the pump are also diclosed.
(FR)
L'invention concerne une pompe de verre fondu comprenant, de préférence, une ou plusieurs pompes formant un appareil à un étage ou étant combinées en série pour former un appareil à multiples étages. La configuration exacte dépend de la pression nécessaire et du degré nécessaire d'homogénéisation du verre. Parmi les exemples de l'invention, on trouve une pompe à vis et une pompe de mélange à vis présentant divers degrés de capacité de mélange, ainsi qu'une pompe d'homogénéisation à action de pompage mais servant principalement d'homogénéisateur. Ces trois pompes comprennent toutes, de préférence, une caractéristique de recirculation de flux centrale destinée à remélanger du verre non homogène dans le flux de verre entrant. Elles comprennent également, de préférence, un manchon contrarotatif qui rectifie le flux de verre sortant de l'appareil et génère une voie de recirculation de flux supplémentaire. L'invention concerne également des procédés de distribution de verre fondu sous pression à un appareil de formation de verre à l'aide de la pompe.
Also published as
Latest bibliographic data on file with the International Bureau