СПОСОБ ОСТЕКЛОВЫВАНИЯ ОТХОДОВ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

FIELD: treatment of radioactive and toxic wastes by vitrification. SUBSTANCE: device has melting pot and revolving impeller for stirring. Melting pot walls and impeller function as electrodes. Wastes mixed up with vitrifying material are fed to melting and mixing zone of melting pot and mixture is melted by passing electric current through electrodes and melt. Simultaneously, molten mass is stirred to form froth. Frothed mass obtained is consolidated in settling and drain zone. Melt is additionally consolidated by separating gaseous components from it and poured into containers. Device is provided with mechanism for impeller positioning within pot to vary depth of settling zone. Used primarily as glass-forming material is frit an procedure is mainly used for radioactive wastes. Device can run continuously or periodically and is space- saving. EFFECT: improved capacity of process due to fast melting of vitrifying materials and improved filling capacity of vitrified block with wastes. 19 cl, 3 dwg, 1 tbl

Verfahren und Vorrichtung zum Homogenisieren von geschmolzenem Glas

Device homogenizing viscous materials, dispersing striation and streaks, employs stirrer body with vanes designed and arranged to increase stirrer efficiency

Material flows from the homogenization vessel (10) inlet (6) to its outlet (7). The concentric stirrer (12) body (4) has radially-extended vanes (1, 2, 3, ...). The material passes through the gap (11) between the inner wall (5) and the stirrer body, where it undergoes shear-stressing. A proportion of the flow passes near the axis and close to the wall of the stirrer body. This proportion is subjected to little or no homogenization by shear stressing. The size of this proportion in relation to the total flow, is significantly reduced by design. The reduction is achieved by special selection of the radial width of the stirrer vanes, combined with their arrangement in a number of zones in the stirring device. As a result, the efficiency of the stirrer is increased. The geometry of the annular gap (17) between the outer edges of the vanes and the vessel wall, and the rotary speed of the stirrer, are so selected that, at a given throughput in the gap, and at a given material viscosity, the ...

Improvements in and relating to the manufacture of glass

... 191,842. Parsons, Sir C. A. Oct. 22, 1921. Charges, agitating.-A stirrer for use in the manufacture of optical glass is provided with means for giving it a rapid rotary motion about its own axis with or without a relatively slow orbital motion. In the construction shown, a clay stirrer of the usual cylindrical shape but provided with projections or paddles b, which may be arranged in spiral formation as shown, is attached to a watercooled iron core c which is rotated by a driving-shaft h through bevel-wheels d. The wheels are enclosed in a chamber e through which water is circulated by pipes k, m. The day stirrer shown may be replaced by one of metal which may consist of a helical loop of solid-drawn steel tube. In addition to the rotation about its axis, the stirrer may be given a slow orbital motion by any convenient mechanism.

Apparatus for homogenizing and equalizing the temperature of molten glass or other viscous material in a forehearth or like structure

... 624,946. Glass-melting furnaces. HARTFORD EMPIRE CO. July 15, 1947, No. 18861. Convention date, Feb. 15, 1944. [Class 51 (ii)] [Also in Group XXIII] Molten glass or other viscous fluid material flowing in.a channel 13, Fig. 1, of a forehearth towards a delivery chamber 11 is homogenized by means of a pair of transversely spaced stirrers 22r, 22l rotated about vertical axes and arranged close to one another and closer to one side wall of the channel than to the other. As shown the stirrers are nearer the right hand wall, are provided with left hand helices 23, Fig. 2, and are rotated counterclockwise at a uniform speed but 180 degrees out of phase with each other whereby the forward flow of the glass through the wider gap is opposed. Further sets of stirrers 122r, 122l with right hand helices 123 and rotated clockwise nearer to the left hand wall, and 222r, 222l similar to 22r, 22l may be provided. The homogenization may be completed and equalisation of the temperature effected by passing ...

Apparatus for homogenizing glass

... To homogenize molten glass, the glass from a furnace 12 is passed downwardly through a downwardly tapered vessel 16 while stirring the glass by a stirrer 18 and then stopping rotation of the glass by passing it into a horizontal duct 20 and an upwardly inclined duct 22 to a discharge spout 14. The platinum lined vessel 16 has an upper extension 16a to direct the flow of the glass and the vessel 16 and ducts 20, 22 are surrounded by heating devices 25 to maintain the temperature of the glass for delivery from the spout 14. The blades 26 of the stirrer 18 are of such length as to lie closely adjacent the tapered walls of the vessel 16 and are hydrodynamically shaped to counteract the effect of the slower velocity of their root portions 28, the blades being widest and steepest in inclination at their roots 28 and narrowest and flattest at their tips 30. Preferably they also taper in thickness.

Improvements in glass manufacture

... 804,505. Glass manufacture. PENBERTHY, H. L. March 15, 1956 [March 15, 1955], No. 8173/56. Class 56. In the homogenising of molten glass two impellers 122, 124 rotating in opposite directions in the same horizontal plane about vertical axes spaced apart longitudinally in the direction of flow of the molten glass are provided in the forebearth 10. In the form shown in Fig. 10, which is a plan, the impellers co-operate with a protrusion 166 on one side wall 160 of the forebearth to ensure the splitting of the first and second circular movements of the glass induced by the impellers. In another form three impellers in line may be used. Colourant material which may be molten glass or may be coloured particles that have been fire-polished may be added to the melt before homogenization.

Process and device of homogenisation of molten glass.

DEVICE FOR MIXING VISCOUS MATERIAL.

TRANSPARENT IR-ABSORBING GLASS AND PROCEDURE FOR ITS PRODUCTION.

Apparatus for stirring molten glass, means for stirring molten glass comprising such a device and the use of such a device

Rührer (1) zum Rühren von geschmolzenem Glas (16), wobei der Rührer (1) umfasst - eine Welle (2) mit einer Spitze (4) und einer Zentrallängsachse (L) und - eine oder mehrere innere Rührerschaufeln (5, 6), die an der Welle (2) angebracht sind, und - eine oder mehrere äußere Rührerschaufeln (7, 8), die an der Welle (2) angebracht sind, wobei die inneren Rührerschaufeln (5, 6) näher an der Welle (2) angebracht sind als die äußeren Rührerschaufeln (7, 8), wobei bei Betrachten des Rührers in einem Zylinderkoordinatensystem (11) sowohl die eine oder mehreren inneren Rührerschaufeln (5, 6) als auch die eine oder mehreren äußeren Rührerschaufeln (7, 8) in einem Winkel (α, β) zur Zentrallängsachse (L) angeordnet sind, wobei der Winkel (α, β) zwischen 0° und 90°, diese Werte nicht einschließend, beträgt, und so angeordnet sind, dass sie auf der zur Spitze (4) gerichteten Seite mindestens einen Schaufelabschnitt mit einem Normalenvektor (N, P, Q, R) mit einer Winkelkomponente (NA, PA, QA, RA) aufweisen ...

EQUIPMENT AND PROCEDURE FOR GLASSING DANGEROUS WASTE

Procedure and device for homogenizing melted glass

Apparatus and method for vitrification of hazardous waste

METHOD AND APPARATUS FOR RAPIDLY MELTING AND REFINING GLASS

METHOD AND APPARATUS FOR HOMOGENIZING FLAT GLASS

Stirring of glass of high optical quality is effected by initiating forming of the glass, such as by the float process, at relatively high temperatures immediately after the glass has been stirred. Preferably, during and/or following the stirring operation contact between the molten glass and ceramic refractories is minimized. This is preferably accomplished by providing a layer of molten metal (e.g., tin) on the bottom of the stirring chamber.

HIGH SHEAR MIXER AND GLASS MELTING APPARATUS AND METHOD

... 2105576 9215532 PCTABS00016 A glass melter (30) having a mixing impeller (34) for converting a feed stream (38) supplied to a vessel (32) into a vitrified glass melt (50). Heating means such as electrodes (36) or a gas burner (58) are used to heat the glass melt (50). Electrode (36) arrangements are proposed for minimizing current flow through the impeller (34). Current flow through a special continuous circular impeller or conical pump (70) is disclosed. A cylindrical vessel (98), triangular vessel (94), square vessel (32), and hexagonal vessel (96) are disclosed. Methods of processing particular waste streams are disclosed including coated mineral fibers, fly ash, radioactive material, chemical waste and the like.

Procédé d'agitation et de distribution du verre fondu, et appareil pour la mise en oeuvre du procédé.

Procédé pour la fabrication d'objets moulés en verre coloré et appareillage de brassage pour sa mise en oeuvre.

Dispositif destiné à brasser et débiter le verre fondu.

Vorrichtung zur Herstellung von Glasfasern

Verfahren zur Herstellung von Glas und Einrichtung zur Durchführung des Verfahrens

Procédé et dispositif d'homogénéisation du verre fondu

AGITATOR FOR MIXING AND HOMOGENIZING OF THE MOLTEN GLASS.

PROCESS AND DEVICE FOR MAKING OF GLASS MELTED, AND APPLICATIONS OF THIS DEVICE

1. A method of making molten glass comprising a rapid fusion stage (1; 11; 45) of a vitrifiable mixture producing a mass called a "crude vitreous mass" having a viscosity not exceeding 100 Pa . s (1 000 poises) and containing a refining agent, a stage called a "rapid refining stage" (23; 60) in which the crude vitreous mass is subjected to heating (25-25'; 59) controlled to cause convective foaming in said crude vitreous mass throughout its volume with an expansion ratio of at least 1.5, and a recovery and conditioning stage (24) for the refined glass obtained, characterised in that the rapid fusion stage comprises a dispersion action (2, 5; 17; 49) intended to put in intimate contact, in a homogeneous mixture, the solid vitrifiable materials (8) forming a phase called a "solid phase", with vitrifiable materials in fusion, forming a molten phase, said mixture forming a fused bath of said crude vitreous mass and in that, in order to subject it to the convective foaming stage (23; 60) said crude vitreous mass is withdrawn (21) at the lower part of said fused bath (11; 45) and introduced (21) to the lower part of a bath at which said heating causing convective foaming is applied.

Improvement with the devices distributors (feeders) for the automatic manufacture of articles out of glass

Food continues of a capacity external with a glass furnace

Glass melting furnace - with molten glass circulated through gathering chamber to improve homogeneity

Feeder for molten lead crystal glass - contains two stirrers and labyrinth sills to minimise lead segregation

광학적 성질 유리에 대한 용융유리 운송장치

... 용융 유리 운송 시스템이 오버플로우 다운드로우 공정과 매치할 수 있도록 변형되어 있다. 파이너를 통해 제거되지 않는 상당한 수의 결함은 시트의 사용불가능한 입구 및 말단 에지로 전환된다. 일 구현예에서, 교반기는 파이너의 출구로부터 파이너의 입구로 재배치된다. 다른 구현예에서, 파이너의 기본 형상은 바람직하게는 실린더 형에서 이중 꼭대기(또는 걸윙(Gull Wing) 형상의 횡단면으로 변화되고, 상기 파이너의 꼭대기는 유리 시트의 사용불가능한 입구 단부를 형성하는 유리를 함유한다. 파이너 벤트(또는 벤트들)는 바람직하게는 상기 꼭대기에 위치하여 벤트에 의해 야기된 균질성 흠결이 유리 시트의 사용불가능한 입구 단부로 전환되도록 한다. 파이너 횡단면은 실린더형 파이너에 비하여 청징 효율의 향상을 위하여 큰 종횡비를 가지고 있다.

SYSTEM AND METHOD FOR RESTRICTING INWARD HYDROGEN PERMEATION IN A GLASS MANUFACTURING SYSTEM

Hydrogen may permeate into an interior space of an article in response to molten glass being in contact with the outer surface of the article. The permeation may be restricted by having a fluid in a length of the interior space. The fluid may be in contact with the inner surface of the article, the fluid may fill at least about 33% of the volume of the length of the interior space, and the fluid may provide a predetermined partial pressure of hydrogen. Features may be provided for causing the fluid to flow within the interior space.

APPARATUS FOR MAKING A GLASS ARTICLE AND METHODS

Apparatus are provided for making a glass article. The apparatus includes a pre-fining chamber with a first stirring device for stirring molten glass in the pre-fining chamber. The apparatus further includes a fining chamber configured to remove a majority of the gas bubbles from the molten glass. The apparatus also includes a post-fining chamber with a second stirring device for stirring molten glass in the post-fining chamber. Methods are also provided for making a glass article. The methods include the steps of stirring molten glass in a pre-fining chamber, removing a majority of the gas bubbles from the molten glass in a fining chamber, and stirring the molten glass in the post-fining chamber.

Method for vitrification of hazardous waste

Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. Any failure of the melting vessel (12) is detected by a sensor (48). Different embodiments of the heater (38) provide current flow through molten material (18) being heated, induction heating and electric resistance heating. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by ...

Methods and apparatus for homogenizing molten glass

The level of precious-metal inclusions in glass products, e.g., glass substrates for liquid crystal displays, is reduced by stirring molten glass in a stir chamber ( 11 ) under conditions such that the magnitude of the shear stress τ on the chamber's wall ( 19 ) and on the surfaces of the stirrer ( 13 ) is reduced while at the same time, the Q•E product for the system is kept high, where Q is the flow of glass through the stirring system and E is the system's stirring effectiveness.

Stirring system with interspaced stirring elements and baffles, and method for homogenizing glass melts

A stirring system for molten glass having a stirring vessel and a stirrer; and a method for homogenizing glass melts. The stirrer has a shaft and at least one stirring element, and the stirring vessel has at least two baffles extending from an inner circumferential surface. The stirring element and baffles are formed in such a way that insertion of the stirrer into the stirring vessel requires at least one translatory movement of the stirrer in relation to the stirring vessel, at least one subsequent or simultaneous relative rotation of the stirrer in relation to the stirring vessel, and a further translatory movement of the stirrer in relation to the stirring vessel. In an operating state, the stirrer is rotatable in the stirring vessel.

METHOD OF DRAWING GLASS ARTICLES

Glass melting device, includes two mixed cells that are arranged one behind other in gas flow, where one mixed cell is melted cell with agitator, where agitating device includes mixing blade

The device has mixed cells that include an inlet and a discharge, where one of mixed units is arranged between the inlet and the discharge. Two mixed cells are arranged one behind the other in a gas flow. One of the mixed cells is a melted cell with an agitating device, where the agitating device includes a mixing blade. An axis of rotation of the agitating device is arranged vertically. One of the mixed cells is a static mixed cell (100).

Glass feeder has wide collection chamber above a drainage opening for difficultly miscible bottom glass to reduce formation of 'cat scratches' and other flaws in finished glass products

Glass feeder has a wide collection chamber (7) between the feeder channel bottom (6) and a difficultly miscible bottom glass drainage opening (4). A feeder has a channel (5), connecting a glass melting furnace discharge region with a feeder head (2), and a bottom drainage opening (4) located ahead of the feeder head for removing bottom glass which is difficultly miscible with the rest of the glass melt. A collection chamber (7) is provided between the channel bottom (6) and the drainage opening (4) and has a width (BD), at the channel bottom, of \-50% of the channel width (BS).

VERFAHREN UND VORRICHTUNG ZUM HOMOGENISIEREN VON GLAS.

A tank furnace for continuous production of crystal glass

... The melting zone 8 of a continuous glass furnace is connected to two mixing chambers 10, 11 by a channel 9. Each chamber 10, 11 is cylindrical and has an axially arranged vane-type mixer 13 submerged to a depth approximately equal to the height of the vanes. The mixers in each chamber are rotated in the same direction and may be reversible to reduce furnace wear. A nose 14 dividing the mixing chambers prevents the formation of dead spaces.

Improvements in or relating to apparatus for feeding molten glass

... 280,611. British Hartford-Fairmont Syndicate, Ltd., and Wardley, T. June 18,1926. Delivering molten metal.-Apparatus for feeding molten glass from a receptacle through a discharge opening comprises means for moving the glass positively in a plane substantially at right angles to the axis of the discharge opening in order to keep the glass of uniform temperature and consistency. In the construction shown in Fig. 1, the molten glass is contained in a forehearth A and is discharged through an opening B by the reciprocations of a plunger C, the size of the charge of glass being regulated by a flow-controlling tube surrounding the plunger, as described in Specification 194,675. According to the invention, another tube E surrounds the tube D and is provided on its outer surface with projections, vanes, or fins E'. The tube is rotated or moved angularly, and the projections E<1> stir or move the glass. The tube E may be dispensed with and the projections E' may be formed either on the tube D or ...

Improvements in or relating to mixing apparatus

... Apparatus for mixing molten glass flowing from an inlet 11 along a channel 10 comprises six vertical stirrers in successive pairs, the stirrers in each pair counter-rotating, the first and third pairs 15, 16 and 19, 20 urging the material to flow between them while the second pair 17, 18 urge the material towards the walls of the channel. The stirrer blades may be spaced apart or may overlap, or the stirrers may be helices, see Fig. 2 (not shown), the stirrers 15, 17, 19 all being left-hand while 16, 18, 20 are all right hand, so that the first and third pairs urge the material downward and the second pair, upward. In a wider channel the second pair of stirrers may be closer together than the other pairs, see Fig. 3 (not shown). The apparatus is of particular use in mixing a coloured glass into colourless glass.

IMPROVEMENTS RELATING TO A PROCESS AND APPARATUS FOR THE HOMOGENISATION OF MOLTEN GAS

... 1284495 Homogenizing molten glass COM. PAGNIE DE SAINT-GOBAIN 19 March 1970 [25 March 1969] 13264/70 Heading C1M Molten glass is homogenized by dividing a stream of the glass into a plurality of separate threads, imparting an abrupt change of direction to the threads and laminating the mass of glass produced by the recombination of the threads between two spaced surfaces situated adjacent one another. As shown in Fig. 1, molten glass 1 from a feeder 2 enters a bowl 3 of refractory material with a circular opening 4 in its base which is substantially closed by a disc 5, on a shaft 6, pierced by holes 7 so that the glass flows through as separate threads. The lower surface of disc 5 forms one of the two surfaces and the other may be formed, (1) as in Fig. 1, by the top surface of a disc 8 also on shaft 6 and rotating with disc 5, (2) by a disc 8 on a separate shaft (9) passing through a hollow shaft 6 so that the discs 5 and 8 may be rotated in the same or opposite directions and at the same ...

EQUIPMENT AND PROCEDURE FOR GLASSING DANGEROUS WASTE

PROCEDURE AND DEVICE FOR MELTING GLASS AND APPLICATIONS OF THIS DEVICE.

PROCEDURE AND DEVICE FOR THE GLAZING OF WASTES.

Device for homogenizing melted glass

GLASS FORMING PROCESS

GLASS FORMING PROCESS

APPARATUS AND METHOD FOR VITRIFICATION OF HAZARDOUS WASTE

Apparatus (10) and a method for vitrifying hazardous waste includes a meltin g vessel (12) into which hazardous waste is introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive a nd contain any material that exits the melting vessel upon failure. Failure of the melt ing vessel (12) is detected by a sensor (43). A stirrer (39) mixes the material (18) during the heating. The containment vessel (46) is p referably hermetically scaled around the melting vessel (12) to contain gases and any melted material received from the failed melting vesse l (12). The sensing of the failure is by a pressure chan ge in the hermetically sealed chamber (58) or sensing of the presence of material received by the containment vessel (45) from the failed melting vessel (12) by electrical circuit type detection.

Agitation and distribution of glass

METHOD OF DYEING AND TREATING GLASS STREAMS

Device of homogenisation of the temperature of a viscous matter in a forehearth or similar apparatus

Improvement with the devices and processes of homogenisation of glasses in fusion

Improvements with the devices being used with mixing of glass and the glass supply

PROCESS AND DEVICE TO HOMOGENIZE A MOLTEN MASS OF GLASS

La présente invention concerne un procédé et un dispositif pour l'homogénéisation d'une masse fondue de verre, avec l'utilisation d'au moins un système agitateur (1), qui est disposé respectivement dans un récipient agitateur (2) comprenant une entrée (4) et une sortie (5), le système agitateur respectif présentant une pluralité d'ailettes d'agitateur (11, 20, 21), qui sont disposées de façon espacée les unes des autres le long d'un arbre d'agitateur (10) commun . Selon l'invention, le système agitateur et/ou le dispositif est conçu de telle sorte qu'un effet transporteur net du système agitateur est sensiblement minime globalement depuis l'entrée vers la sortie. L'effet transporteur du système agitateur (1) globalement depuis l'entrée (4) vers la sortie (5) est occasionné par le réglage des ailettes d'agitation (11, 20, 21), par leur forme géométrique et/ou par la position d'angle des ailettes d'agitation dans le sens périphérique de l'arbre d'agitateur (10). Selon l'invention, le régime ...

광학적 성질 유리에 대한 용융유리 운송장치

... 용융 유리 운송 시스템이 오버플로우 다운드로우 공정과 매치할 수 있도록 변형되어 있다. 파이너를 통해 제거되지 않는 상당한 수의 결함은 시트의 사용불가능한 입구 및 말단 에지로 전환된다. 일 구현예에서, 교반기는 파이너의 출구로부터 파이너의 입구로 재배치된다. 다른 구현예에서, 파이너의 기본 형상은 바람직하게는 실린더 형에서 이중 꼭대기(또는 걸윙(Gull Wing) 형상의 횡단면으로 변화되고, 상기 파이너의 꼭대기는 유리 시트의 사용불가능한 입구 단부를 형성하는 유리를 함유한다. 파이너 벤트(또는 벤트들)는 바람직하게는 상기 꼭대기에 위치하여 벤트에 의해 야기된 균질성 흠결이 유리 시트의 사용불가능한 입구 단부로 전환되도록 한다. 파이너 횡단면은 실린더형 파이너에 비하여 청징 효율의 향상을 위하여 큰 종횡비를 가지고 있다.

METHOD AND APPARATUS FOR REDUCING CONDENSATE RELATED DEFECTS IN A GLASS MANUFACTURING PROCESS

The present invention is directed toward an apparatus and method of reducing contamination of a glass melt by oxide particulates, such as particulates of platinum oxide, which may condense on the inside surfaces of a stir chamber, particularly the stir shaft, and fall back into the glass melt. The apparatus includes a condensation collection vessel arranged annularly around the stir shaft of a stirring device. The collection vessel is located above the free surface of the molten glass occupying the stir chamber and serves to collect any condensed particulates that have formed on the stir chamber cover or gaps within the cover itself. By collecting the condensate, defects in the final glass product that would otherwise be created by the condensate, can be avoided. A method of stirring a glass melt is also provided.

PROCESS AND PUMP FOR HOMOGENIZING MOLTEN GLASS

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.

Device for stirring molten gas

Stirrer (1) for stirring molten glass (16), whereby the stirrer (1) comprises —a shaft (2) having a tip (4) and having a central longitudinal axis (L), and —one or more inner stirrer blades (5,6) which are attached to the shaft (2), and —one or more outer stirrer blades (7,8) which are attached to the shaft (2), whereby the inner stirrer blades (5,6) are attached closer to the shaft (2) than the outer stirrer blades (7,8), whereby, when considering the stirrer in a cylindrical coordinate system (11), both the one or more inner stirrer blades (5,6) as well as the one or more outer stirrer blades (7,8) are disposed at an angle (α, β) to the central longitudinal axis (L), whereby said angle (α, β) is between 0° and 90° not including these values, and are disposed having a least a blade section with a normal vector (N, P, Q, R), on the side directed towards the tip (4), with an angular component (NA, PA, QA, RA).

Устройство для перемешивания расплавленного стекла

Мешалка (1) для перемешивания расплавленного стекла (16), причем мешалка (1) содержит:- вал (2), имеющий торец (4) и центральную продольную ось (L); и- одну или более внутренних лопастей (5, 6) мешалки, которые прикреплены к валу (2); и- одну или более внешних лопастей (7, 8) мешалки, которые прикреплены к валу (2), причем внутренние лопасти (5, 6) мешалки прикреплены ближе к валу (2), чем внешние лопасти (7, 8) мешалки;причем при рассмотрении мешалки в цилиндрической системе (11) координат одна или более внутренних лопастей (5, 6) мешалки, а также одна или более внешних лопастей (7, 8) мешалки расположены под углом (α, β) к центральной продольной оси (L), при этом указанный угол (α, β) составляет от 0° до 90°, не включая эти значения, и расположены так, что со стороны, обращенной к торцу (4), имеют по меньшей мере участок лопасти с нормальным вектором (N, Р, Q, R) с угловой компонентой (N, Р, Q, R).

Устройство для закрашивания и перемешивания стекломассы в непрерывном потоке

Parallele Anordnung einer Vacuumentgasungsvorrichtung für geschmolzenes Glas

Rührbehälter, Rührsystem und Verfahren zum Homogenisieren von Glasschmelzen

Die Erfindung betrifft ein Rührsystem für schmelzflüssiges Glas und einen Rührbehälter (1) bzw. einen Rührer (3). Dabei weist der Rührer (3) einen Schaft (30) und mindestens einen Rührkörper (4) auf. Der Rührkörper (4) ist derart ausgebildet, dass der Rührer (3) in den Rührbehälter (1) durch mindestens eine axiale bzw. translatorische Relativbewegung des Rührers (3) zu dem Rührbehälter (1), mindestens eine nachfolgende oder gleichzeitige Relativdrehung des Rührers (3) zu dem Rührbehälter (1) und eine weitere axiale bzw. translatorische Relativbewegung des Rührers (3) zu dem Rührbehälter (1) eingeführt werden kann. Dabei kann der Rührer (3) im Betriebszustand im Rührbehälter (1) gedreht werden.

Rührsystem und Verfahren zum Homogenisieren von Glasschmelzen

Rührsystem für schmelzflüssiges Glas aus Rührbehälter (1) und Rührer (3), wobei das Rührsystem aufweist: a. mindestens einen Rührer (3) mit einem Schaft (30) und mindestens einem Rührkörper (4), wobei b. der Rührkörper (4) derart ausgebildet ist, dass der Rührer (3) in den Rührbehälter (1) eingeführt werden muß durch mindestens eine axiale und/oder translatorische Relativbewegung des Rührers (3) zu dem Rührbehälter (1), mindestens eine nachfolgende oder gleichzeitige Relativdrehung des Rührers (3) zu dem Rührbehälter (1) und eine weitere axiale und/oder translatorische Relativbewegung des Rührers (3) zu dem Rührbehälter (1), c. wobei der Rührer (3) im Betriebszustand im Rührbehälter (1) gedreht werden kann, und wobei der Rührbehälter (1) enthält: d. eine Längsachse (49), und e. eine innere Umfangsfläche (10), f. wobei die innere Umfangsfläche (10) mindestens zwei Stromstörer (2) aufweist, die sich von der inneren Umfangsfläche (10) in das Innere des Rührbehälters (1) hinein erstrecken,.

Verfahren und Vorrichtung zur Verhinderung oder Abschwaechung der Kristallisationsneigung sowie des Entweichens von Verdampfungsprodukten von der Oberflaeche von Glasschmelzen

An adjustable skull crucible for melting and refining glass

An apparatus and a process for melting inorganic substances which allow a high product quality to be obtained and the technological outlay to be reduced, the invention provides a process and an apparatus in which the volumetric ratios between a melting region and a refining region can be flexibly adapted. The process comprises the steps of adding a batch into at least one first region 12 on the feed side 10 of a scull crucible 1, heating the crucible contents 30, melting down the crucible contents 30 in the at least one first region 12 of the scull crucible 1, entry into at least one second region 22 on the discharge side 20 of the scull crucible 1, melting down and/or refining the crucible contents 30 in the at least one second region 22, of the scull crucible 1, and removing the melted-down crucible contents through at least one removal apparatus 25, with the volume on the feed side 10 and/or the discharge side 20 of the scull crucible 1 being set variably. The inorganic substances may ...

Process and apparatus for melting inorganic substances

Improvements in apparatus for conducting molten glass to a discharge orifice

198,952. Rankin, C. H. Sept. 28, 1922. Delivering molten metal.-In a device for feeding molten glass towards and through a discharge orifice, the flow of glass is effected and controlled by a rotary archimedian screw dipping into or immersed in the molten glass. The device comprises a forehearth a having in the lower part a cup b fitted with a bush c forming the discharge orifice. An archimedian screw d extends into the cup b, and by its rotation assists or retards the extension of the metal through the bush c. The screw is supported in bearings f carried by a bracket g which can be moved to raise or lower the screw to regulate the discharge. An adjustable sleeve j may surround the screw to co-operate in controlling the discharge and to serve as a dross trap or stop valve. Metal is led to the forehearth a from a pocket l by way of gutters k which feed the metal to diametrically opposite ports of the forehearth. The metal is raised into the pocket from a trough m by a second screw n which has its axis inclined at a convenient angle to the end wall of the trough.

VERTICAL SUPPLY DEVICE FOR A FLOATING GLASS PROCEDURE.

MORE SCHERENMENGER, GLASS FUSION DEVICE AND PROCEDURE

INFRARED ABSORBING GLASS

TRANSPARENT INFRARED ABSORBING GLASS AND METHOD OF MAKING

METHOD AND A TREATMENT CELL FOR DYEING AND/OR REFINING GLASS IN GLASS STREAMS

Process and apparatus for the homogenisation of glass

METHOD OF DYEING AND TREATING GLASS STREAMS

Processes and devices for the homogenisation of molten glass

PROCEDE ET DISPOSITIF POUR ELABORATION DE VERRE FONDU, ET APPLICATIONS DE CE DISPOSITIF

L'INVENTION INTERESSE L'ELABORATION DE VERRE FONDU ET PLUS PARTICULIEREMENT LA TECHNIQUE D'AFFINAGE RAPIDE FAISANT APPEL AU PROCESSUS DE MOUSSAGE EXPANSIF DECRIT PAR LE BREVET PRINCIPAL, PERMETTANT DE LIVRER UN PRODUIT APTE AU FORMAGE EN UNE DUREE DE L'ORDRE DE L'HEURE. ELLE COMPORTE, POUR ELABORER LA MASSE VITREUSE BRUTE A SOUMETTRE AU MOUSSAGE EXPANSIF, UNE MISE EN CONTACT INTIME, EN UN MELANGE HOMOGENE, DE MATIERES VITRIFIABLES SOLIDES ET D'UN BAIN EN FUSION, COMPLETEE DE PREFERENCE, EVENTUELLEMENT EN COMBINAISON, PAR UN APPORT THERMIQUE OBTENU PAR EFFET JOULE DIRECTEMENT AU TRAVERS DUDIT MELANGE. LE DISPOSITIF DE L'INVENTION S'APPLIQUE NON SEULEMENT A LA MISE EN OEUVRE DU PROCEDE D'AFFINAGE RAPIDE, MAIS EGALEMENT A L'ELABORATION DE MATERIAUX VITREUX DE FAIBLES VISCOSITES OU PEU EXIGEANTS QUANT AU NIVEAU DE L'AFFINAGE.

APPARATUS FOR MAKING A GLASS ARTICLE AND METHODS

Glass plate manufacturing method and glass plate manufacturing device

本發明提供玻璃板之製造方法，抑制了玻璃板之條紋之產生。本發明提供之玻璃板之製造方法具備攪拌步驟，在上述攪拌步驟中，藉由使攪拌構件2以軸構件5作為旋轉軸旋轉而攪拌腔室1內之熔融玻璃7，在攪拌步驟中，軸構件5被設置為由側面1b及攪拌構件2之葉片6a~6e對熔融玻璃7施加之剪切應力在側面1b之周向上變化。

Apparatus for making a glass article and methods

Methods of making a glass article comprise the step of flowing molten glass into an inlet of a conduit (132, 136), wherein the molten glass entering the inlet includes a flow profile with a first quantity (182) traveling in the conduit at a lower elevation than a second quantity (184) traveling in the conduit. The method further includes the step of twisting the flow profile within the conduit such that the first quantity travels in the conduit at a higher elevation than the second quantity. In further examples, apparatus for making a glass article comprise a helical vane (170) nonrotatably fixed in a conduit (132, 136) and configured to twist a flow profile (180) of a molten glass flowing within the conduit.

MOLTEN GLASS DELIVERY APPARATUS FOR OPTICAL QUALITY GLASS

A molten glass delivery system is modified to match it with the overflow downdraw process. A substantial number of defects not removed by the finer are diverted to the unusable inlet and distal edges of the sheet. In one embodiment, the stirring device is relocated from the outlet to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a Double Apex (or Gull Wing) shaped cross-section, whereby the apexes of the finer contain the glass that will form the unusable inlet end of the glass sheet. The finer vent or vents are preferably located at these apexes such that any homogeneity defects caused by the vents are diverted to the unusable inlet end of the glass sheet. The finer cross-section has a high aspect ratio for increased fining efficiency as compared to a cylindrical finer.

METHOD FOR HOMOGENIZATION OF MOLTEN GLASS AND ADDITIVES

Device and method for melting and refining a lithium silicate glass for laser rods

Process and apparatus for melting inorganic substances

Glassmaking furnace

Improvements in or relating to an apparatus for stirring molten glass

... 862,740. Stirring molten glass. AMERICANSAINT GOBAIN CORPORATION. Oct. 19, 1959, No. 35367/59. Class 56. Apparatus for stirring molten glass comprises a driving shaft 2, a chuck 11 capable of being rigidly connected to one end of the shaft 2 with its opening directed axially away therefrom, a stirrer 18, 19 having an enlarged portion 20 which is located within the chuck 11 and which has a part-spherical surface 21 thereon, clamping means 22 secured to the chuck 11 as by bolts 23 and having a seating engaging the surface 21, a member 26 within the chuck in engagement with the enlarged portion 20 and having a part-spherical surface 27 in engagement with the inner surface of the end wall 11a of the chuck 11 and concentric with the surface 21, the clamping member 22 being tightened to press the surface 27 against the end wall 11a after the chuck and stirrer have been accurately aligned and thereby lock them in position. The member 22 is in three parts to slide in the outer wall 11b, each secured ...

Method and apparatus for homogenizing molten glass

... 830,450. Glass manufacture. OWENS-ILLINOIS GLASS CO. Dec. 12, 1956, No. 37903/56. Class 56. During its passage through the forehearth 13 from the furnace 10 to the delivery point 14 molten glass is homogenised by being subjected, inter alia, to the action of stirrers 26 which produce coaxial vortex flow from the surface of the glass. The invention is described with special reference to the mixing with the molten glass of a coloured frit from a supply 16, but it is of general application. The molten glass is first subjected to the action of rotary screw stirrers 24 and then to gas from bubblers 25, after which it passes under a vertically adjustable skimmer dam 29 and, after treatment by the stirrers 26, passes over a dam 31 and is treated further by other rotary screw stirrers 27. In the form shown in Fig. 1 the stirrers 24 and 26 and the dam 29 operate in a well 28, but this may be omitted. Two constructions of stirrers 26, which are made of metal, are shown in Figs. 12 and 14 ; that in ...

Improvements in glass manufacture

... 847,272. Glass manufacture. PENBERTHY, H. L. Nov. 18, 1958 [Sept. 1, 1958], No. 37099/58. Addition to 804,505. Class 56. In the homogenising of molten glass fed along a confined channel by a pair of impellers rotating in opposite directions as in the parent case, the impellers are constructed so as to give not only a transverse flow but also a vertical pumping action. As. shown in Fig. 2, the impellers 24, 26 are propeller type blades set at an angle on vertical shafts 20, 22. As in Fig. 3, the blades 42, 44 are straight set on shafts 38, 40 set at an angle to each other. In both cases, the blades overlap and are set at 90 degrees out of phase. The blades are also set adjacent the bottom of the channel 10 or 28 and are long enough to be adjacent the sides 14, 16 or 32, 34 of the channel so that the molten glass 18 or 36 is fully homogenised. The device is mainly for use when colourant is introduced into the stream of molten glass, either in the form of molten glass, either in the form of ...

PROCEDURE AND DEVICE FOR HOMOGENIZING GLASS.

Device for the production of glass

HIGH SHEAR MIXER AND GLASS MELTING APPARATUS AND METHOD

A glass melter (30) having a mixing impeller (34) for converting a feed stre am (38) supplied to a vessel (32) into a vitrified glass melt (50). Heating means such as electrodes (36) or a gas burner (58) are used to heat the glass melt (50). Electrode (36) ar- rangements are proposed for minimizing current flow through the impeller (34 ). Current flow through a special continuous circu- lar impeller or conical pump (70) is disclosed. A cylindrical vessel (98), triangular vessel (94), square vessel (32), and hexagonal vessel (96) are disclosed. Methods of processing particular waste streams ar e disclosed including coated mineral fibers, fly ash, radioactive material, chemical waste and the like.

Device of assembly of revolving bodies through the wall of furnaces for the treatment of matters such as glass

METHOD FOR RAPIDLY MELTING AND REFINING GLASS

Apparatus agitator of molten glass

Mixing Apparatus

The present invention is related to a glass stirrer providing for improved stirring, reduced glass cord and easy adjustment of processing parameters during operation.

Molten glass delivery apparatus for optical quality glass

A molten glass delivery system is modified to match it with the overflow downdraw process. A substantial number of defects not removed by the finer are diverted to the unusable inlet and distal edges of the sheet. In one embodiment, the stirring device is relocated from the outlet to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a Double Apex (or Gull Wing) shaped cross-section, whereby the apexes of the finer contain the glass that will form the unusable inlet end of the glass sheet. The finer vent or vents are preferably located at these apexes such that any homogeneity defects caused by the vents are diverted to the unusable inlet end of the glass sheet. The finer cross-section has a high aspect ratio for increased fining efficiency as compared to a cylindrical finer.

Method of manufacturing glass, and stirring device

A method of manufacturing glass comprises a stirring step in which molten glass MG is stirred. The stirring step comprises a first stirring step and a second stirring step. In the first stirring step, the molten glass MG is stirred while being directed upward from below in a first stirred tank 100 a. In the second stirring step, the molten glass MG stirred in the first stirring step is stirred while being directed downward from above in a second stirred tank 100 b. The first stirred tank 100 a has a first discharge pipe 110 a capable of discharging the molten glass MG from the bottom of a first chamber 101 a. The second stirred tank 100 b has a second discharge pipe 110 b capable of discharging the molten glass MG from the liquid level LL of the molten glass MG in a second chamber 101 b.

STIRRER FOR GLASS MELTING, AND GLASS MELTING FURNACE

A stirrer for glass melting which can be used over a prolonged life expectancy, while maintaining a high strength, even in an environment exposed to a high temperature and an oxygen-containing gas atmosphere for a long period of time, and can prevent the air bubbles from being mixed into the glass melt. A stirrer for glass melting is made of iridium or an iridium-based alloy, and has a rotary shaft and a stirring part, a surface region S of the surface of the rotary shaft above the stirring part is covered with a cylindrical cover, the cover has a two-layer structure in which an outer layer made of platinum or a platinum rhodium alloy and an inner layer made of platinum or a platinum rhodium alloy containing metal species are joined together, and oxide particles of metal species are precipitated in a dispersed state on a surface of the inner layer on an opposite side to a surface adjacent to the outer layer, wherein the stirrer for glass melting has a pipe made of iridium or an iridium-based alloy which surrounds at least the surface region S of the cover from the lower end of the cover to a predetermined height at an interval. 1. A stirrer for glass melting which is made of iridium or an iridium-based alloy , and has a rotary shaft and a stirring part provided at a lower end part of the rotary shaft ,a surface region of a surface of the rotary shaft above the stirring part is covered with a cylindrical cover, the cover has a two-layer structure in which an outer layer made of platinum or a platinum rhodium alloy and an inner layer made of platinum or a platinum rhodium alloy containing metal species are joined, and oxide particles of the metal species are precipitated in a dispersed state on a surface of the inner layer on an opposite side to the surface adjacent to the outer layer,wherein the stirrer for glass melting has a pipe which surrounds at least a surface region of the cover from the lower end of the cover to a predetermined height at an interval, the pipe ...

MOLTEN MATERIAL STIRRING SYSTEM AND METHOD FOR STIRRING THE MATERIAL

A system and method for stirring molten material such as glass are provided. To prevent sagging of a cover of a stirring system, a portion where deformation or sagging may significantly occur is suspended by a suspension system, so that local sagging and deformation of the cover is suppressed. As a result, a crack which may occur in the cover is suppressed, and therefore, contamination of the molten material is likewise suppressed. 1. A molten material stirring system comprising:a stirring vessel configured to accommodate molten material;a stirring blade positioned inside the stirring vessel;a rotating rod to which the stirring blade is fixed;a cover disposed over the stirring vessel, the cover comprising a central hole configured to allow the rotating rod to extend therethrough;a plurality of hanging posts positioned a predetermined distance between an outer edge of the cover and the central hole; anda suspension system configured to impart a lifting force on the cover through the plurality of hanging posts.2. The molten material stirring system of claim 1 , wherein the cover comprises a first cover member and a second cover member divided by at least one border region extending through the central hole and each of the hanging posts comprises a first post member and a second post member respectively positioned on the first cover member and the second cover member proximate the border region and configured to face each other and to be combined with or separated from each other.3. The molten material stirring system of claim 2 , wherein the suspension system comprises a holder which holds the first post member and the second post member together.4. The molten material stirring system of claim 3 , wherein the hanging posts are symmetrically disposed with respect to the hole along the at least one border region.5. The molten material stirring system of claim 2 , wherein the hanging posts are symmetrically disposed with respect to the hole along the at least one border ...

STIRRER FOR GLASS MANUFACTURE

The present invention provides a stirrer for manufacturing glass including a stirrer shaft and a multi-staged rod-shaped stirrer blade fixed so as to penetrate through the stirrer shaft. This stirrer blade is a hollow cylindrical body including: a cylinder obtained by seam welding of two opposing sides of a flat plate made, for example, from strengthened platinum containing platinum or a platinum alloy as a matrix and metallic oxide dispersed in the plate; and a disk welded to an entire circumference of both ends of the cylinder and made from an identical material, and it penetrates so that a weld line crosses a center axis of the stirrer shaft, and is fixed so that a locus of an end portion of the blade forms a spiral shape. In addition, the rod-shaped stirrer blade has a core layer showing a dispersed structure that exists in a cross-sectional structure at a fixing portion with the stirrer shaft and does not receive heat effect resulting from fixing. The present invention is effective in stirring of molten glass having high viscosity, and has enhanced stirring operation and improved durability against deformation and damage. 1. A stirrer for manufacturing glass , comprising a stirrer shaft and a multi-staged rod-shaped stirrer blade penetrating through and fixed to the stirrer shaft , whereinthe rod-shaped stirrer blade is a hollow cylindrical body comprising:a cylinder obtained by seam welding of two opposing sides of a flat plate made of strengthened platinum or a strengthened platinum alloy containing platinum or a platinum alloy as a matrix and metallic oxide dispersed in the plate; anda disk welded to an entire circumference of both ends of the cylinder and made from an identical material,the rod-shaped stirrer blade penetrates through the stirrer shaft so that a weld line due to the seam welding crosses a center axis of the stirrer shaft, and is fixed so that a locus of an end portion of the blade forms a spiral shape, andthe rod-shaped stirrer blade has a ...

Method for manufacturing glass substrate, and glass substrate manufacturing apparatus

本发明涉及一种玻璃基板的制造方法及玻璃基板制造装置。本发明的课题在于降低澄清管内的氧气浓度而抑制铂族金属的异物混入至熔融玻璃中。本发明的玻璃基板的制造方法具备使用澄清管进行熔融玻璃的澄清的澄清步骤。在澄清步骤中，以在熔融玻璃的液面的上方形成气相空间的方式一边使熔融玻璃流向澄清管内，一边进行澄清。澄清管是由包含铂族金属的材料构成，在与气相空间相接的壁部具有：通气孔，排出气相空间内的气体；及供给孔，向气相空间内供给对熔融玻璃呈惰性的气体；通气孔及供给孔在熔融玻璃的流动方向上相互隔开配置。在澄清步骤中，以气相空间内的氧气浓度成为目标值以下的方式从供给孔供给惰性气体，并且在氧气浓度超过高于目标值的容许值的情况下，使来自通气孔的气体的排出量少于氧气浓度为容许值以下的情况下的供给量。

Method and apparatus for refining molten glass

용융유리의 정제방법은, 용융유리를 교반용기내에서 교반하는 교반단계 ; 상기 용융유리를 상향 파이프를 통해 진공용기에 공급하는 공급단계 ; 상기 진공용기내에서 상기 용융유리를 감압상태하에 두고, 상기 용융유리의 표면부에 생성된 기포와 그 표면부 바로 아래의 상기 용융유리의 유동을 상기 진공용기내에 설치한 배리어로써 차단하여, 상기 용융유리의 표면부에 기포층이 형성되어 있는 상태에서 상기 용융유리의 탈기를 실시하는 탈기 단계 ; 및 상기 진공용기에서의 탈기 이후, 상기 용융유리를 하향 파이프를 통해 저장용기에 방출하는 방출단계들을 포함한다. Purification method of the molten glass, the stirring step of stirring the molten glass in a stirring vessel; Supplying the molten glass to a vacuum vessel through an upward pipe; The molten glass is placed under reduced pressure in the vacuum vessel, and bubbles generated in the surface portion of the molten glass and the flow of the molten glass immediately below the surface portion are blocked by a barrier provided in the vacuum vessel, thereby melting the molten glass. A degassing step of degassing the molten glass in a state where a bubble layer is formed on a surface portion of the glass; And after the degassing in the vacuum vessel, the step of discharging the molten glass to the storage vessel through the downward pipe.

Method for manufacturing glass substrate and glass substrate manufacturing apparatus

本发明涉及一种玻璃基板的制造方法及玻璃基板制造装置。本发明抑制铂族金属在澄清管内凝聚并且抑制在澄清后的熔融玻璃内产生气泡。玻璃基板的制造方法具备使用澄清管进行熔融玻璃的澄清的澄清步骤。在澄清步骤中，一边以在熔融玻璃的液面上方形成气相空间的方式使熔融玻璃流到澄清管内，一边进行澄清。澄清管由包含铂族金属的材料构成，在与气相空间相接的壁部，具有将气相空间内的气体排出的通气孔及将对于熔融玻璃为惰性的气体导引到气相空间内的导入孔，通气孔及导入孔在熔融玻璃的流动方向上相互隔开而配置。在澄清步骤中，使惰性气体滞留在与导入孔相邻的澄清管的外侧的外部空间，通过使气体从通气孔排出，而将外部空间内的惰性气体引入到气相空间内，并使它沿熔融玻璃的流动方向流动。

High shear mixer and glass melting apparatus and method

용기(32)에 보급되는 공급흐름(38)을 유리화된 유리 용융물(50)로 변환시키는, 혼합 임펠러(34)를 가진 유리 용해기(30)이다. 유리 용융물(50)을 가열하기 위해 전극(36)이나 가스버너(58) 따위의 가열수단이 사용된다. 전극(36) 배열이 임펠러(34)를 통하는 전류 흐름을 최소화하기 위해 제안돼 있다. 특수한 연속 원형 임펠러나 원추형 펌프(70)을 통한 전류 흐름이 개시돼 있다. 원통현 용기(98), 삼각형 용기(94), 정방형 용기(32), 및 육각형 용기(96)이 개시돼 있다. It is a glass melter 30 with a mixing impeller 34, which converts the feed stream 38 which is replenished into the vessel 32 into a vitrified glass melt 50. Heating means such as electrodes 36 or gas burners 58 are used to heat the glass melt 50. An arrangement of electrodes 36 is proposed to minimize the current flow through the impeller 34. Current flow through a special continuous circular impeller or conical pump 70 is disclosed. A cylindrical string container 98, a triangle container 94, a square container 32, and a hexagonal container 96 are disclosed. 피복된 광물 섬유, 비산재, 방사성 물지, 화학 쓰레기 및 기타를 포함하여 특수한 쓰레기 흐름을 처리하는 방법이 개시돼 있다. Methods of treating special waste streams are disclosed, including coated mineral fibers, fly ash, radioactive material, chemical waste, and others.

Melting device

Molten glass stirring rod and molten glass stirring device including the molten glass stirring rod

Method and apparatus for homogenizing molten glass by stirring

通过在使炉壁(19)和搅拌器(13)表面上的剪切应力τ减小，同时保持较高的系统的Q.E乘积的条件下，在搅拌室(11)中搅拌玻璃熔体，来减少玻璃产品(如液晶显示器用的玻璃基片)中包含的贵金属夹杂物的含量，其中，Q是流经搅拌系统的玻璃熔体的流量，E是系统的搅拌效率。

Glass base homogenization method

METHOD AND DEVICE FOR FAST MELTING AND PURIFYING GLASS

METHOD AND DEVICE FOR MAKING MOLTEN GLASS, AND APPLICATIONS THEREOF

L'INVENTION INTERESSE L'ELABORATION DE VERRE FONDU ET PLUS PARTICULIEREMENT LA TECHNIQUE D'AFFINAGE RAPIDE FAISANT APPEL AU PROCESSUS DE MOUSSAGE EXPANSIF DECRIT PAR LE BREVET PRINCIPAL, PERMETTANT DE LIVRER UN PRODUIT APTE AU FORMAGE EN UNE DUREE DE L'ORDRE DE L'HEURE. ELLE COMPORTE, POUR ELABORER LA MASSE VITREUSE BRUTE A SOUMETTRE AU MOUSSAGE EXPANSIF, UNE MISE EN CONTACT INTIME, EN UN MELANGE HOMOGENE, DE MATIERES VITRIFIABLES SOLIDES ET D'UN BAIN EN FUSION, COMPLETEE DE PREFERENCE, EVENTUELLEMENT EN COMBINAISON, PAR UN APPORT THERMIQUE OBTENU PAR EFFET JOULE DIRECTEMENT AU TRAVERS DUDIT MELANGE. LE DISPOSITIF DE L'INVENTION S'APPLIQUE NON SEULEMENT A LA MISE EN OEUVRE DU PROCEDE D'AFFINAGE RAPIDE, MAIS EGALEMENT A L'ELABORATION DE MATERIAUX VITREUX DE FAIBLES VISCOSITES OU PEU EXIGEANTS QUANT AU NIVEAU DE L'AFFINAGE. THE INVENTION CONCERNS THE PREPARATION OF MELT GLASS AND MORE PARTICULARLY THE RAPID REFINING TECHNIQUE USING THE EXPANDING FOAMING PROCESS DESCRIBED BY THE MAIN PATENT, ALLOWING TO DELIVER A PRODUCT SUITABLE FOR FORMING IN A DURATION OF THE ORDER OF THE ORDER OF THE HOUR. IT INCLUDES, TO PREVENT THE GROSS GLASS MASS TO BE SUBJECTED TO EXPANDING FOAMING, AN INTIMATE CONTACT, IN A HOMOGENEOUS MIXTURE, OF SOLID VITRIFIABLE MATERIALS AND A FUSION BATH, PREFERABLY COMPLETED, POSSIBLY IN A COMBINATION, OBTAINED BY JOULE EFFECT DIRECTLY THROUGH THE SAID MIXTURE. THE FEATURE OF THE INVENTION APPLIES NOT ONLY TO THE IMPLEMENTATION OF THE RAPID REFINING PROCESS, BUT ALSO TO THE PREPARATION OF VITREOUS MATERIALS OF LOW VISCOSITY OR LOW REQUIRED AS TO THE LEVEL OF REFINING.

Melting of inorganic substances, notably glass, in a two part smelting/refining crucible with regulation of the volume of each part by means of a weir to optimize product quality

Melting inorganic substances, in particular glass, consists of: (a) introducing a compound into a first region (12) on the feed side (10) of a crucible (1); (b) heating the contents (30) of the crucible; (c) smelting the descending contents of the crucible in this first region; (d) admitting it to a second region (22) on the discharge side (20) of the crucible; (e) smelting and/or refining the contents of the crucible in this second region; (f) removing the contents of the crucible through a discharge device (25). The volume of the feed side and/or the discharge side of the crucible are able to be regulated in a variable manner by means of a weir (2). An independent claim is also included for the equipment used for melting an inorganic substance by this method.

Molten glass delivery apparatus for optical quality glass

용융 유리 운송 시스템이 오버플로우 다운드로우 공정과 매치할 수 있도록 변형되어 있다. 파이너를 통해 제거되지 않는 상당한 수의 결함은 시트의 사용불가능한 입구 및 말단 에지로 전환된다. 일 구현예에서, 교반기는 파이너의 출구로부터 파이너의 입구로 재배치된다. 다른 구현예에서, 파이너의 기본 형상은 바람직하게는 실린더 형에서 이중 꼭대기(또는 걸윙(Gull Wing) 형상의 횡단면으로 변화되고, 상기 파이너의 꼭대기는 유리 시트의 사용불가능한 입구 단부를 형성하는 유리를 함유한다. 파이너 벤트(또는 벤트들)는 바람직하게는 상기 꼭대기에 위치하여 벤트에 의해 야기된 균질성 흠결이 유리 시트의 사용불가능한 입구 단부로 전환되도록 한다. 파이너 횡단면은 실린더형 파이너에 비하여 청징 효율의 향상을 위하여 큰 종횡비를 가지고 있다. The molten glass transport system is modified to match the overflow down-draw process. A significant number of defects that are not removed through the finer are diverted to unavailable entrance and end edges of the sheet. In one embodiment, the agitator is relocated from the outlet of the finer to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a double top (or a Gull Wing-shaped cross-section), the top of the finer containing glass forming the unusable inlet end of the glass sheet (Or vents) are preferably located at the top so that homogenous defects caused by the vent can be converted to the unusable inlet end of the glass sheet. [0051] The finer cross- It has a large aspect ratio to improve efficiency.

Molten glass delivery apparatus for optical quality glass

A molten glass delivery system is modified to match it with the overflow downdraw process. A substantial number of defects not removed by the finer are diverted to the unusable inlet and distal edges of the sheet. In one embodiment, the stirring device is relocated from the outlet to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a Double Apex (or Gull Wing) shaped cross-section, whereby the apexes of the finer contain the glass that will form the unusable inlet end of the glass sheet. The finer vent or vents are preferably located at these apexes such that any homogeneity defects caused by the vents are diverted to the unusable inlet end of the glass sheet. The finer cross-section has a high aspect ratio for increased fining efficiency as compared to a cylindrical finer.

Mixer for viscous material

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent FR3032957A3

Agitateur (1) pour agiter du verre fondu (16), l'agitateur (1) comprenant - un arbre (2) ayant une pointe (4) et ayant un axe central longitudinal (L) et - une ou plusieurs pales d'agitation internes (5, 6) qui sont fixées à l'arbre (2) et - une ou plusieurs pales d'agitation externes (7, 8) qui sont fixées à l'arbre (2), les pales d'agitation internes (5, 6) étant fixées plus près de l'arbre (2) que les pales d'agitation externes (7, 8), moyennant quoi, lorsque l'on considère l'agitateur dans un système de coordonnées cylindrique (11), la ou les pales d'agitation internes (5, 6) ainsi que la ou les pales d'agitation externes (7, 8) sont disposées selon un angle (α, β) par rapport à l'axe longitudinal central (L), ledit angle (α, β) étant compris entre 0° et 90°, ces valeurs étant exclues et sont disposées en ayant au moins une section de pale avec un vecteur normal (N, P, Q, R), sur le côté dirigé vers la pointe (4), avec une composante angulaire (NA, PA, QA, RA). Agitator (1) for agitating molten glass (16), the stirrer (1) comprising - a shaft (2) having a tip (4) and having a longitudinal central axis (L) and - one or more stirring blades internals (5, 6) which are fixed to the shaft (2) and - one or more external stirring blades (7, 8) which are fixed to the shaft (2), the internal stirring blades (5) 6) being attached closer to the shaft (2) than the external stirring blades (7, 8), whereby when considering the stirrer in a cylindrical coordinate system (11), the the internal stirring blades (5, 6) and the external stirring blade or blades (7, 8) are arranged at an angle (α, β) with respect to the central longitudinal axis (L), said angle (α, β) being between 0 ° and 90 °, these values being excluded and are arranged having at least one blade section with a normal vector (N, P, Q, R), on the side directed towards the tip (4), with an angular component (NA, PA, QA, R AT).

Apparatus and method for processing molten glass

Apparatus, which is suitable for being surrounded by molten glass, the apparatus having a shank which has at least one at least partially seamless tube consisting of an oxide dispersion-strengthened PGM material, the shank having at least one thickened portion on which an actuating device is arranged.

Method and device for the production of glass fibers

Glassmaking tank furnace having a particular floor profile between sill and neck

Method and apparatus for refining molten glass under reduced pressure

Mixing apparatus

The present invention is related to a glass stirrer providing for improved stirring, reduced glass cord and easy adjustment of processing parameters during operation.

OVEN WITH DEPOSIT FOR MANUFACTURING GLASS PROVIDED WITH A PARTICULAR FLOOR PROFILE BETWEEN THE SUN AND THE NECK.

Un horno de fabricación de vidrio compuesto por un depósito alargado de vidrio fundido, incluyendo dicho depósito en orden secuencial lineal una zona de fundido (21), una zona de afinado (23), una porción de cuello (12), una zona de acondicionamiento (24) y un canal de salida (14) para la extracción del producto de vidrio, e incluye además una solera (11) que se extiende transversalmente a lo ancho del horno en o cerca del extremo ascendente de la zona de afinado (23), caracterizado porque en la dirección descendente de la solera (11) el depósito tiene un suelo (6) con un perfil modificado de modo que la profundidad del depósito aumenta progresivamente desde lo alto de la solera (11) hasta la porción del cuello (12) y disminuye progresivamente desde la porción del cuello (12) hasta el canal de salida (14). A glass manufacturing furnace composed of an elongated molten glass deposit, said deposit in linear sequential order a melting zone (21), a tuning zone (23), a neck portion (12), a conditioning zone (24) and an outlet channel (14) for the extraction of the glass product, and also includes a hearth (11) extending transversely across the oven at or near the rising end of the tuning zone (23) , characterized in that in the downward direction of the hearth (11) the tank has a floor (6) with a modified profile so that the depth of the tank increases progressively from the top of the hearth (11) to the neck portion (12 ) and decreases progressively from the neck portion (12) to the exit channel (14).

MOLTEN GLASS STIRRING DEVICE, MOLTEN GLASS STIRRING APPARATUS COMPRISING SUCH DEVICE AND USE OF SUCH A DEVICE

Apparatus and method for vitrifying hazardous waste

Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which a stirrer (38) mixes hazardous waste and any other necessary components for forming a glassy mixture upon heating while an electrical current is applied across the melting vessel and the stirrer to provide electrical current flow, and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. Any failure of the melting vessel (12) is detected by a sensor (48). The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by an electrical circuit type detection.

Methods and apparatus for homogenizing molten glass

The level of precious-metal inclusions in glass products, e.g., glass substrates for liquid crystal displays, is reduced by stirring molten glass in a stir chamber ( 11 ) under conditions such that the magnitude of the shear stress τ on the chamber's wall ( 19 ) and on the surfaces of the stirrer ( 13 ) is reduced while at the same time, the Q•E product for the system is kept high, where Q is the flow of glass through the stirring system and E is the system's stirring effectiveness.

Method for vitrification of hazardous waste

Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. Any failure of the melting vessel (12) is detected by a sensor (48). Different embodiments of the heater (38) provide current flow through molten material (18) being heated, induction heating and electric resistance heating. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by electrical circuit type detection.

Molten glass delivery apparatus for optical quality glass

Vertical glass melting furnace

A vertical glass melting furnace of the type having an inlet for raw materials at the top thereof, an outlet for molten glass at the bottom thereof, and a tabular electric resistance heating element for melting which is immersed at some level in molten glass, has at least one opening, and covers almost entirely the cross-section of the furnace at that level, the vertical glass melting furnace comprising a stirrer which extends from above the furnace and passes through the batch layer and the tabular heating element so that the stirrer brings about forced circulation for homogenization of the molten glass which has passed through the tabular heating element and stays in the region below the tabular heating element.

Vertical delivery arrangement for float glass process

DELIVERY OF MOLTEN GLASS TO A FLAT GLASS FORMING OPERATION CARRIED OUT AS A SUBSTANTIALLY FREE-FALLING VERTICAL STREAM. THE GLASS MAY BE RECEIVED IN A FIRST CHAMBER IN A RELATIVELY DEEP AND NARROW RESERVOIR, FROM WHICH IT FLOWS TO A WIDER CHAMBER, FROM WHICH, IN TURN, IT IS DRAWN LONGITUDINALLY.(FIG. 5)

Stirrer device for molten glass

The manufacture method and glass substrate manufacture device of glass substrate

本发明涉及一种玻璃基板的制造方法及玻璃基板制造装置。本发明的课题在于降低澄清管内的氧气浓度而抑制铂族金属的异物混入至熔融玻璃中。本发明的玻璃基板的制造方法具备使用澄清管进行熔融玻璃的澄清的澄清步骤。在澄清步骤中，以在熔融玻璃的液面的上方形成气相空间的方式一边使熔融玻璃流向澄清管内，一边进行澄清。澄清管是由包含铂族金属的材料构成，在与气相空间相接的壁部具有：通气孔，排出气相空间内的气体；及供给孔，向气相空间内供给对熔融玻璃呈惰性的气体；通气孔及供给孔在熔融玻璃的流动方向上相互隔开配置。在澄清步骤中，以气相空间内的氧气浓度成为目标值以下的方式从供给孔供给惰性气体，并且在氧气浓度超过高于目标值的容许值的情况下，使来自通气孔的气体的排出量少于氧气浓度为容许值以下的情况下的供给量。

Floating process for plate glass shaping

将玻璃液作为自由下降的垂直流引至平板玻璃成形工段。玻璃液流可以接纳到成形室第一区中之较窄且较深的贮存段，由此流至一较宽的区，再由此沿纵向被拉伸。

Molten glass delivery apparatus for optical quality glass

Molten glass delivery apparatus for optical quality glass

A molten glass delivery system is modified to match it with the overflow downdraw process. A substantial number of defects not removed by the finer are diverted to the unusable inlet and distal edges of the sheet. In one embodiment, the stirring device is relocated from the outlet to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a Double Apex (or Gull Wing) shaped cross-section, whereby the apexes of the finer contain the glass that will form the unusable inlet end of the glass sheet. The finer vent or vents are preferably located at these apexes such that any homogeneity defects caused by the vents are diverted to the unusable inlet end of the glass sheet. The finer cross-section has a high aspect ratio for increased fining efficiency as compared to a cylindrical finer.

Apparatus for making a glass article and methods

METHOD AND DEVICE FOR GLASS PRODUCTION

Molten glass stirring control system and method for laboratory

本发明公开了一种实验室用熔融玻璃搅拌控制系统及方法，系统包括加热单元、搅拌单元和坩埚单元，所述加热单元包括炉体、加热元件、温度补偿加热器，所述搅拌单元包括搅拌杆、搅拌马达、搅拌桨叶、温度和液位传感器，所述坩埚单元包括坩埚。本发明实现对玻璃熔制过程中熔融玻璃温度的测量和精准控制，充分满足熔制所需的温度条件，重点实现了对熔融玻璃液的原位自动搅拌均化，并且通过温度联动搅拌马达实时改变搅拌旋转速度，更加又有利于玻璃液的均化效果。

Method for rapidly melting and refining glass

In accordance with the method of this invention, glass-forming materials are subjected to heat and agitation sufficient to form a molten glass having some undissolved glass-forming materials, cords, and incompleted chemical reactions between the glass-forming materials and containing a high number of gaseous inclusions. This molten glass is subjected to a shearing action to complete the melting of any unmelted sand grains remaining from the glass-forming materials, and to complete the chemical reactions that may have been incomplete, and to remove any cords remaining but leave the glass with gaseous inclusions this glass is thereafter subjected to centrifugal forces sufficient to remove the gaseous inclusions and thereby produce a refined molten glass having the desired homogeneity. In one embodiment of the invention, glass-forming materials are introduced into a first chamber wherein they are subjected to heat and agitation sufficient to form a molten glass having some undissolved glass-forming materials, cords, and incompleted chemical reactions between the glass-forming materials and containing a high number of gaseous inclusions. This glass is introduced into a second chamber, where it is subjected to a shearing action to remove remaining inhomogeneities and complete the melting of the glass this molten, homogenized glass containing gaseous inclusions is introduced to a third chamber where it is subjected to centrifugal forces sufficient to remove the gaseous inclusions, producing a refined, homogeneous molten glass, which is discharged from the third chamber.

Method of manufacturing glass, and stirring device

A method of manufacturing glass comprises a stirring step in which molten glass MG is stirred. The stirring step comprises a first stirring step and a second stirring step. In the first stirring step, the molten glass MG is stirred while being directed upward from below in a first stirred tank 100 a . In the second stirring step, the molten glass MG stirred in the first stirring step is stirred while being directed downward from above in a second stirred tank 100 b . The first stirred tank 100 a has a first discharge pipe 110 a capable of discharging the molten glass MG from the bottom of a first chamber 101 a . The second stirred tank 100 b has a second discharge pipe 110 b capable of discharging the molten glass MG from the liquid level LL of the molten glass MG in a second chamber 101 b.

Fusion processes for producing sheet glass

本发明提供了一些对通过采用氧化锆熔化单元的熔合法制造的玻璃板中的缺陷的形成进行控制的方法。所述方法包括，在玻璃通过澄清器、澄清器至搅拌室的连接管、以及搅拌室的过程中，控制玻璃的温度曲线，以尽可能减少扩散入玻璃内的氧化锆的量，以及在搅拌室内离开溶液的次要氧化锆基缺陷的量。

Water cooled skimmer for glass furnace forehearth

Mixing equipment

本発明は、撹拌が改良され、ガラス筋が低減され、かつ運転中の処理パラメータを容易に調節することができるガラス撹拌機に関する。

Transparent infrared absorbing glass and method of making

A glass product having high visible transmittance, low infrared transmittance, and, optionally, reduced ultraviolet transmittance is produced in a manner compatible with continuous, commercial manufacture of flat glass by employing a moderate amount of iron in the glass composition and controlling reducing conditions to maintain a relatively large portion of the iron in the ferrous state.

Molten glass delivery apparatus for optical quality glass

용융 유리 운송 시스템이 오버플로우 다운드로우 공정과 매치할 수 있도록 변형되어 있다. 파이너를 통해 제거되지 않는 상당한 수의 결함은 시트의 사용불가능한 입구 및 말단 에지로 전환된다. 일 구현예에서, 교반기는 파이너의 출구로부터 파이너의 입구로 재배치된다. 다른 구현예에서, 파이너의 기본 형상은 바람직하게는 실린더 형에서 이중 꼭대기(또는 걸윙(Gull Wing) 형상의 횡단면으로 변화되고, 상기 파이너의 꼭대기는 유리 시트의 사용불가능한 입구 단부를 형성하는 유리를 함유한다. 파이너 벤트(또는 벤트들)는 바람직하게는 상기 꼭대기에 위치하여 벤트에 의해 야기된 균질성 흠결이 유리 시트의 사용불가능한 입구 단부로 전환되도록 한다. 파이너 횡단면은 실린더형 파이너에 비하여 청징 효율의 향상을 위하여 큰 종횡비를 가지고 있다.

Method and device for homogenizing a glass melt

본 발명은 유입구(4)와 유출구(5)를 갖는 교반 용기(2)에 각각 배열되는 교반수단(1)으로 각각의 교반수단이 공동 교반기 샤프트(10)를 따라 서로 이격되어 배열된 복수의 교반기 블레이드(11, 20, 21)를 갖는 적어도 하나의 교반수단(1)을 이용하는 유리 용융물 균일화 방법 및 장치에 관한 것이다. According to the present invention, a plurality of agitators are arranged in a stirring vessel (2) having an inlet (4) and an outlet (5), each stirring means being spaced apart from each other along a common stirrer shaft (10). A method and apparatus for homogenizing glass melt using at least one stirring means (1) with blades (11, 20, 21). 본 발명에 따르면, 교반수단 및/또는 장치는 유입구에서 유출구까지 전체에 걸친 교반수단의 순 이송효과가 사실상 인식할 수 없도록 구성된다. 유입구(4)에서 유출구(5)까지 전체에 걸친 교반수단(1)의 이송효과는 교반기 블레이드(11, 20, 21)들의 위치설정, 교반기 블레이드들의 기하학적 형상 및/또는 교반기 샤프트(10)의 원주 방향을 따르는 교반기 블레이드들의 각방향 위치에 기인한다. According to the invention, the stirring means and / or the device are configured such that the net transfer effect of the stirring means throughout the inlet to the outlet is virtually unrecognizable. The conveying effect of the stirring means 1 throughout the inlet 4 to the outlet 5 can be determined by the positioning of the stirrer blades 11, 20, 21, the geometry of the stirrer blades and / or the circumference of the stirrer shaft 10. Due to the angular position of the agitator blades along the direction. 본 발명에 따르면, 교반수단의 회전속도는 장치의 전체 처리량을 크게 변화시키지 않고도 원하는 정도의 유리 용융물 균일화를 설정하기 위해 적어도 일정 범위 내에서 자유롭게 변경될 수 있다. According to the invention, the rotational speed of the stirring means can be freely changed at least within a certain range to set the desired degree of glass melt uniformity without significantly changing the overall throughput of the apparatus. 유리 용융물, 균일화, 교반수단, 교반기 블레이드, 이송효과 Glass melt, homogenizing, stirring means, stirrer blade, conveying effect

Recirculating furnace

Device for stirring molten glass

本发明提供一种熔融玻璃搅拌装置，在按输送量1～50m 3 /小时·S(S为输送管的截面积)输送粘度为100～7000dPa·s的熔融玻璃的熔融玻璃输送管内对该熔融玻璃进行搅拌，其中，该熔融玻璃搅拌装置由可旋转的中心轴和设置于该中心轴上的搅拌部构成，所述搅拌部由分别由各板状体形成的横向搅拌叶片及纵向搅拌叶片构成，所述横向搅拌叶片以长边与所述中心轴正交且短边沿所述中心轴的轴方向倾斜10～70度的方式设置，所述纵向搅拌叶片以使长边与所述中心轴平行的方式设置在规定所述搅拌部的外缘的位置，在将设置有所述搅拌部的部位的所述熔融玻璃输送管的直径设为D 1 (mm)、将所述搅拌部的所述外缘的最大直径设为D 2 (mm)时，满足0.8×D 1 ≤D 2 ≤0.98×D 1 。

Method and apparatus for rapidly melting and refining glass

Apparatus for homogenization of molten glass and additives

Method and apparatus for the homogenization of molten glass and additives thereto, flowing in the feeder channel of a glassmelting furnace. The glass flow is broken up into a multiplicity of small vertical streams or filaments which are then re-combined by and between two closely-spaced horizontal superposed surfaces. The upper surface may be a disk rotating about a vertical axis and comprising a multiplicity of apertures through which the molten glass flows. The lower surface may be fixed, or a disk rotatable as a unit with the upper disk, or independently but coaxially in the opposite direction, or in the same direction but at speed different from the upper disk.

Apparatus for use in the glass industry and method

Molten glass stirring chamber

A stirring chamber includes a stirring vessel configured to receive molten glass; a cover on the stirring vessel; and a stirrer configured to pass through the cover and stir the molten glass. The cover includes a porous heat-resistant body and an inorganic ceramic layer covering a surface of the porous heat-resistant body.

Agitation system and method to homogenize glass melts

Un sistema de agitación para vidrio fundido con un recipiente de agitación (1) y un agitador (3), en el que el sistema de agitación comprende: a. al menos un agitador (3) con un árbol (30) que tiene un eje longitudinal (49) y al menos un elemento de agitación (4), por el que b. estando el elemento de agitación (4) formado de tal manera que el agitador (3) debe ser introducido en el recipiente de agitación (1) por al menos un movimiento relativo axial y/o de translación del agitador (3) con relación al recipiente de agitación (1), al menos una rotación relativa subsiguiente o simultánea del agitador (3) con relación al recipiente de agitación (1) y un movimiento adicional relativo axial y/o de translación del agitador (3) con relación al recipiente de agitación (1), c. en el que es posible que el agitador (3) en el estado operativo sea hecho girar en el recipiente de agitación (1), y en el que el recipiente de agitación (1) comprende: d. un eje longitudinal (49), y e. una superficie circunferencial interior (10), f. por el que teniendo la superficie circunferencial interior (10) al menos dos deflectores (2), que se extienden desde la superficie circunferencial interior (10) o desde la pared de la misma al interior del recipiente de agitación (1), g. por el que además, teniendo los deflectores (2) un contorno que se estrecha al menos en parte esencialmente de forma transversal con relación al eje longitudinal (49) alejándose de la superficie circunferencial interior (10) del recipiente de agitación (1), h. en el que el o los elementos de agitación están formados de tal manera que durante la rotación en el estado operativo dicho elemento o elementos forman una envolvente que se estrecha al menos parcialmente alejándose del árbol esencialmente de forma transversal con relación al eje longitudinal del árbol y se corresponde al contorno del deflector o deflectores. A stirring system for molten glass with a stirring vessel (1) and a stirrer (3), wherein the stirring system ...

Means for and method of controlling flow of glass to a feeder outlet

Glass melting furnace and process for improving the quality of glass

Apparatus and method for making glass

Method of dyeing and treating glass streams

1480935 Homogenizing molten glass NIKO. LAUS SORG GmbH & CO 21 Oct 1974 [25 Jan 1974] 45520/74 Heading ClM In the homogenizing of molten glass, a stream from a melting furnace 15 passes upwardly through a passage 1 in which it is additionally heated by electrodes 8, 9; then to a horizontal passage 2 arranged so that there is free space 3 above the glass stream; then to a vertically descending glass passage 4 of circular crosssection in which the downward flowing glass stream is mechanically agitated by an agitator 5 with vanes 16 extending out to the passage walls 17, the glass then passing through a short horizontal passage 6 to a further rising passage 7. The molten glass stream then passes to a glass feeder 13 which may be heated as at 14 to maintain the desired temperature. The apparatus is particularly useful for the addition of material for colouring the glass, the colour frit, molten stream or dye being metered and fed by a device 10 to drop onto the free surface of the glass stream and preferably on the upward flow of the molten glass above the two electrodes 8, 9. The changing of colour is facilitated by providing a chain opening 11 either in passage 6 or at the bottom of passage 7. The space 3 is preferably insulated by layers 12 and a vacuum may be applied to assist in removal of escaping gases.

Apparatus and method for processing molten glass

Aparato, que es adecuado para rodearse de vidrio fundido, teniendo el aparato un vástago, estando al menos un dispositivo de accionamiento dispuesto en el vástago, consistiendo el vástago y el dispositivo de accionamiento en un material de metales del grupo del platino reforzado por dispersión de óxido, estando dicho dispositivo de accionamiento dispuesto para moverse mediante un motor, provisto de un tapón protector en su extremo inferior y dispuesto para conectarse a dicho vástago, consistiendo el vástago en al menos un tubo sin costuras, o parcialmente sin costuras, estando dicho aparato caracterizado por que el vástago tiene al menos una parte engrosada sobre la que está dispuesto el dispositivo de accionamiento, estando formada dicha al menos una parte engrosada por al menos un manguito, empujado o contraído sobre el vástago y que consiste en un material de metales del grupo del platino, preferiblemente de un material de metales del grupo del platino reforzado por dispersión de óxido sobre el vástago, comprendiendo el dispositivo de accionamiento dos elementos de hoja que están soldados de modo continuo al manguito, teniendo el manguito un espacio libre y el vástago un orificio, que se disponen opuestos a un elemento de hoja y a sus costuras de soldadura, para ventilar el aire incluido entre las costuras de soldadura en el interior del vástago, estando provisto de un orificio en su extremo superior por encima del nivel del vidrio para ventilar aire al exterior.

Patent JPS50104215A

Molten glass stirring rod and molten glass stirring apparatus comprising the molten glass stirring rod

Stirring device for molten glass

Apparatus and method for vitrification of hazardous waste (APPARATUS AND METHOD FOR VITRIFCATION OF HAZARDOUS WASTE)

Process for making a fluorophosphate optical glass

Method and apparatus for waste vitrification

A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic ves-sel (14) functioning as a vessel electrode (62). A stream (12) of waste material and vitrifiable material are mixed and melted in the vessel (14) for vitrification. The waste vitrification method converts a feed stream (12) by mixing the feed stream into a glass melt (13) and melting glass batch of the feed stream (12) to form a foamy mass. The stream is dispersed by the impeller (16) to form a foam which is then densified in a settling zone (22), recovered through a spout (24) and solidified in storage containers. Means are provided to adjust the location of the mixing impeller (16) in the vessel (14) to change the depth of the settling zone (22). The impeller (16) is mounted on a drive shaft (18) having a recirculating coolant flow.

Apparatus for homogenizing molten glass in a forehearth

Method for continuous colouring and fining of glass and and apparatus for making tis method

Patent FR2036580A5

Molten glass delivery apparatus for optical quality glass

용융 유리 운송 시스템이 오버플로우 다운드로우 공정과 매치할 수 있도록 변형되어 있다. 파이너를 통해 제거되지 않는 상당한 수의 결함은 시트의 사용불가능한 입구 및 말단 에지로 전환된다. 일 구현예에서, 교반기는 파이너의 출구로부터 파이너의 입구로 재배치된다. 다른 구현예에서, 파이너의 기본 형상은 바람직하게는 실린더 형에서 이중 꼭대기(또는 걸윙(Gull Wing) 형상의 횡단면으로 변화되고, 상기 파이너의 꼭대기는 유리 시트의 사용불가능한 입구 단부를 형성하는 유리를 함유한다. 파이너 벤트(또는 벤트들)는 바람직하게는 상기 꼭대기에 위치하여 벤트에 의해 야기된 균질성 흠결이 유리 시트의 사용불가능한 입구 단부로 전환되도록 한다. 파이너 횡단면은 실린더형 파이너에 비하여 청징 효율의 향상을 위하여 큰 종횡비를 가지고 있다.

Apparatus and method for vitrifying hazardous waste

Molten glass supply apparatus and process for producing glass molded article

용융 유리의 공급원이 되는 용융가마(2)로부터 유출된 용융 유리를 성형 장치(3)에 공급하는 공급 유로(4) 도중에 복수의 교반조(K1, K2)를 상, 하류 방향으로 서로 이웃하게 배치하여 이루어지고, 적어도 이웃하는 2개의 교반조(K1, K2) 중 상류측 교반조(K1)의 상부 또는 하부의 어느 한쪽에 유입구(M1)를 또한 다른쪽에 유출구(N1)를 각각 형성함과 아울러 하류측의 교반조(K2)의 유입구(M2) 및 유출구(N2)를 상류측의 교반조(K1)와 상하부를 동일하게 하여 각각 형성하며, 또한 상류측의 교반조(K1)의 유출구(N1)와 상기 유출구(N1)와는 상하부가 반대인 하류측의 교반조(K2)의 유입구(M2)를 연통로(R1)를 통해 접속한다. 용융 유리 공급 장치, 유리 성형품

Stirrer

METHOD AND DEVICE FOR HOMOGENIZING GLASS.

Method and a treatment cell for dyeing and/or refining glass in glass streams

ABSTRACT OF THE DISCLOSURE: A method of treating glass streams, especially for dyeing and/or refining glass in the glass streams, comprising the steps of additionnally heating the glass stream by electric energy in a vertical upward flow, thereafter, horizontally conducting the glass stream in such a way that the stream has a free surface, then, conducting the glass stream vertically downwards with mechanical agitation, and flowing the glass stream again upwardly for further processing or treatment. And, a glass treatment cell for carrying out the above method.

Apparatus and method for vitrifying hazardous waste

(57)【要約】 融解槽（１２）を有し、該融解槽内には有害廃棄物を導入してヒータにより加熱し、金属製閉込め槽（４６）を更に有し、該閉込め槽は融解槽を受け入れていて、融解槽の破損時に該融解槽から出るあらゆる物質を受け入れ且つ収容するように構成した有害廃棄物をガラス化する装置（１０）および方法。融解槽（１２）の破損はセンサ（４８）により検出される。加熱中に、攪拌子（３９）が物質（１８）を混合する。破損した融解槽（１２）から出るガスおよびあらゆる溶融物質を収容するため、閉込め槽（４６）は融解槽（１２）の回りで密閉シールされるのが好ましい。破損は、密閉シールチャンバ（５８）内の圧力変化の検出により、または破損した融解槽（１２）から閉込め槽（４６）に受け入れられた物質の存在を電気回路で検出することにより確認される。

Crucible for manufacturing optical glass

本发明属于光学玻璃熔炼技术领域，具体的说是一种用于制造光学玻璃的坩埚，包括埚体、电机和密封盖；所述埚体内部空腔设计；所述电机转动轴贯穿密封盖并于埚体空腔内固连有搅拌轴；所述搅拌轴上转动连接有均匀布置的搅拌杆和加热棒；所述密封盖内部开设有第一空腔；所述电机转动轴于第一空腔内固连有转动轮；所述第一空腔壁铰接有均匀布置的挤压板；所述挤压板倾斜一侧固连有挤压囊；所述埚体内壁开设有第二空腔；所述第二空腔环绕埚体内腔设置；所述挤压囊均通过单向导管连通埚体内腔和第二空腔；本发明通过电机转动带动转动轮挤压挤压囊，从而使挤压囊将埚体内腔中气流抽至第二空腔中，使埚体气压降低，从而使原料熔点部分降低。

Molten material stirring system and method for stirring the material

A system and method for stirring molten material such as glass are provided. To prevent sagging of a cover of a stirring system, a portion where deformation or sagging may significantly occur is suspended by a suspension system, so that local sagging and deformation of the cover is suppressed. As a result, a crack which may occur in the cover is suppressed, and therefore, contamination of the molten material is likewise suppressed.

METHOD AND APPARATUS FOR GLASS MANUFACTURING

Hazardous waste glass apparatus and method

Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. Any failure of the melting vessel (12) is detected by a sensor (48). Different embodiments of the heater (38) provide current flow through molten material (18) being heated, induction heating and electric resistance heating. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by electrical circuit type detection.

An apparatus for glass manufacture. (Machine-translation by Google Translate, not legally binding)

Apparatus and method for hazardous waste vitrification

Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic containment vessel (46) of the apparatus receives the melting vessel so as to receive and contain any material that exits the melting vessel upon failure. A voltage is applied across spaced electrodes (72) of the melting vessel (46) to heat material within the melting vessel. A stirrer (39) can be utilized to mix the material (18) during the heating. The containment vessel (46) is preferably hermetically sealed around the melting vessel (12) to contain gases as well as any melted material received from the failed melting vessel (12). The sensing of the failure can be either by a pressure change in the hermetically sealed chamber (58) or by sensing of the presence of material received by the containment vessel (46) from the failed melting vessel (12) such as by electrical circuit type detection.

Method and apparatus for making glass sheet

본 발명은 유리판에서의 맥리의 발생을 억제한 유리판의 제조 방법을 제공한다. 본 발명은 샤프트(5)를 회전축으로 하여 교반 부재(2)를 회전시킴으로써 챔버(1) 내의 용융 유리(7)를 교반하는 교반 공정을 구비하며, 교반 공정에 있어서, 샤프트(5)는, 측면(1b) 및 교반 부재(2)의 날개(6a 내지 6e)에 의해 용융 유리(7)에 가하는 전단 응력이 측면(1b)의 둘레 방향에 있어서 변화하도록 설치되어 있는 유리판의 제조 방법을 제공한다. The present invention provides a method of manufacturing a glass plate in which the occurrence of fogging on a glass plate is suppressed. The present invention includes a stirring step of stirring the molten glass 7 in the chamber 1 by rotating the stirring member 2 with the shaft 5 as a rotation axis and in the stirring step, Wherein shear stress applied to the molten glass 7 by the wings 6a to 6e of the stirring member 1b and the stirring member 2 is provided so as to change in the circumferential direction of the side face 1b.

METHOD AND APPARATUS FOR HOMOGENIZATION OF MOLTEN GLASS.

L'invention se rapporte à un procédé et à un dispositif destinés à l'homogénéisation d'un verre fondu dans un récipient pour verre fondu, dans lesquels au moins un dispositif d'agitation (10, 11) est disposé dans le récipient pour verre fondu, comprenant un arbre d'agitateur (10) et une pluralité de pales d'agitateur (11) et un intervalle (16) étant formé entre une zone de paroi du récipient (2) pour verre fondu et les pales d'agitateur (11).Selon l'invention, le dispositif d'agitation respectif provoque un effet d'avancement axial dans une zone d'agitation intérieure (12) située entre l'arbre d'agitateur (10) et les pales d'agitateur (11) afin de faire avancer le verre fondu dans la zone d'agitation le long de l'arbre d'agitateur (10). Un écoulement de verre fondu provoqué par l'effet d'avancement axial verrouille l'intervalle (16) à l'encontre d'un passage direct du verre fondu.Selon l'invention on peut obtenir un intervalle de très forte dimension, ce qui empêche l'abrasion de matériaux dans la zone de l'intervalle marginal. Ceci réduit également la complexité nécessaire pour le réglage du dispositif. Selon l'invention on peut obtenir un niveau d'homogénéisation élevé indépendamment du point d'entrée des inhomogénéités. The invention relates to a method and a device for homogenizing a molten glass in a molten glass container, in which at least one stirring device (10, 11) is arranged in the glass container. melt, comprising an agitator shaft (10) and a plurality of agitator blades (11) and a gap (16) being formed between a wall area of the melt container (2) and the agitator blades ( According to the invention, the respective stirring device causes an axial advancement effect in an inner stirring zone (12) located between the agitator shaft (10) and the agitator blades (11). ) to advance the molten glass into the stirring zone along the agitator shaft ( ...

Vertical delivery arrangement for float glass process