Abrégé

The invention is directed to a method (500) for determining a batch blanket top surface level (2.1) at a cold top electric glass furnace (50), the method comprising the steps of: - providing (502) a measurement setting (40), - determining (504), during a predetermined measure-window time span (W), dis- tance values indicative of a distance (d) between the measuring position (20) and the batch blanket top surface (18); - determining a characteristic distance value (MV) indicative of a central tendency of the distance values (d) determined during at least a fraction of the measure- window time span (W); - providing the characteristic distance value (MV) as a batch blanket top surface level (2.1).

Classes IPC  ?

• G01F 23/284 - Ondes électromagnétiques
• G01F 23/292 - Lumière
• G01F 23/296 - Ondes acoustiques
• C03B 5/24 - Régulation automatique de la fusion

Abrégé

The invention relates to a method of monitor and/or control of operation of an in-dustrial furnace for processing a heated material, in particular for processing a melt in a melting end of a kiln or the like industrial furnace, wherein the industrial furnace has an inner furnace space comprising a furnace crown, a furnace superstructure and a furnace material basin, wherein in the method: —an image process of at least a part of the furnace space is provided. namely provided with a series of images in the course of time, —wherein an image of the series is provided by means of a camera sensor of a camera. the camera being installed at the furnace with a camera view to the furnace space, —and the image of the furnace space is related to a technical map of at least one process parameter of the furnace space during operation of the furnace by means of an image point read out, and—wherein a process parameter (P) is used in the monitor and/or control of operation, and—an image point (i, j) of the image, in particular pixel image A(i, j), corresponds to an object-image position assigned to an object location (x, y, z) of an object in the furnace space B(x, y, z), wherein the image point is related with a sensor point of the camera sensor.

Classes IPC  ?

• C03B 5/24 - Régulation automatique de la fusion
• G06T 7/00 - Analyse d'image
• G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques

Abrégé

The invention relates to a method of monitor and/or control of operation of an in- dustrial furnace for processing a heated material, in particular for processing a melt in a melting end of a kiln or the like industrial furnace, wherein the industrial furnace has an inner furnace space comprising a furnace crown, a furnace superstructure and a furnace material basin, wherein in the method : - an image process of at least a part of the furnace space is provided, namely provided with a series of images in the course of time, - wherein an image of the series is provided by means of a camera sensor of a camera, the camera being installed at the furnace with a camera view to the furnace space, - and the image of the furnace space is related to a technical map of at least one process parameter of the furnace space during operation of the furnace by means of an image point read out, and - wherein a process parameter (P) is used in the monitor and/or control of operation, and - an image point (i, j) of the image, in particular pixel image A(i, j), corresponds to an object-image position assigned to an object location (x, y, z) of an object in the furnace space B(x, y, z), wherein the image point is related with a sensor point of the camera sensor.

Classes IPC  ?

• C03B 5/24 - Régulation automatique de la fusion
• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]
• G06T 7/30 - Détermination des paramètres de transformation pour l'alignement des images, c.-à-d. recalage des images

Abrégé

Energy sources, such as industrial glass burners (11), heating electrodes (10) and other suitable heating energy sources operate on the molten glass melt (6) containing undissolved particles, especially glass sand and bubbles, in the longitudinal axis of the melting space, or in a direction parallel with this longitudinal axis, until creation of one or more longitudinal temperature barriers in the glass melt (6) and until the arising of the cross temperature gradient [K.m-1] which generates spiral-type flowing of the glass melt (6) with a rotary movement across the melting space, and in fact perpendicularly to the longitudinal axis of the melting part. This spiral-type flowing proceeds in the direction from the front wall (2) to the submerged cross refractory barrier (7) in the glass melt (6), or in the direction from the front wall (2) to the cross row (9) of the energy sources. The transversal temperature gradient [K.m-1] of each spiral-type flowing is always set as higher than longitudinal temperature gradient [K.m-1] between the front wall (2) and the submerged cross refractory barrier (7) in the glass melt (6), or between the front wall (2) and the cross row (9) of the energy sources, as a consequence of which it is possible to utilise 0.6 to 0.8 multiple of the total melting space. The ratio of the cross temperature gradient [K.m-1] to the longitudinal temperature gradient [K.m-1] is higher than 1 and lower than 30, preferably it is within the range from 5 to 20. Energy sources, such as heating electrodes (10) and/or industrial glass burners (11) in the melting space are arranged for creation of one or more longitudinal temperature barriers in the glass melt (6) and for generation of the spiral-type flowing of glass melt (6) with a rotary movement across the melting part, in fact perpendicularly to the longitudinal axis of the melting part, and for the setting of the cross temperature gradient [K.m-1] of the spiral-type flowing higher than the longitudinal temperature gradient [K.m-1].

Classes IPC  ?

• C03B 5/183 - AgitateursHomogénéisation en utilisant des moyens thermiques, p. ex. pour créer des courants de convection
• C03B 5/185 - Moyens électriques