摘要:
Die Erfindung betrifft eine Gemengeanlage (01, 18) zur Herstellung eines aus mehreren Rohstoffen gemischten Glasgemenges, mit zumindest einem Vorratsbehälter (05), in dem ein Rohstoff bevorratet werden kann, und mit zumindest einer Dosiereinrichtung (10), mit der die zu mischenden Mengen der Rohstoffe dosiert werden können, und mit zumindest einer Mischeinrichtung (12), in der die zu mischenden Mengen der Rohstoffe gemischt werden können, wobei die Gemengeanlage (01, 18) zumindest ein transportables Gestell (02, 03, 04) umfasst, wobei in dem Gestell (02, 03, 04) zumindest ein Vorratsbehälter (05) und/oder zumindest eine Dosiereinrichtung (10) und/oder zumindest eine Mischeinrichtung (12) aufgenommen ist.
摘要:
Methods of melting particulate feedstocks in a submerged combustion melter employing an arrangement of one or more submerged combustion burners emitting combustion products into turbulent molten material. Operating the burners such that there is established a turbulent melting region extending vertically from the floor to a splash region, the splash region extending vertically between the turbulent melting region and a head space region, the head space region extending vertically between the splash region and the melter ceiling, the ceiling positioned above the floor a height H2. Feeding the particulate feedstock into the splash region through one or more inlet ports, the inlet ports positioned at a height H1 measured from the floor, where H1/H2 ranges from about 0.33 to about 0.67. The SCM may have a baffle extending from the ceiling into the splash region. A particulate feedstock conduit may be employed, having an exit port in the splash region.
摘要:
Provided are a method for monitoring a molten state of a glass batch charged into a melting bath 2 of a glass melting furnace, and a method and a control device for controlling an amount of a glass batch to be charged into the melting bath 2 using such a method. Regions 21L, 21R to be measured are set in regions corresponding to particular partial regions on an image obtained by capturing an image of a liquid surface of the melting bath 2 to be monitored using a camera 6. The occupying ratio of an area occupied by image portions representing unmolten glass batches 70 in each of the regions 21L, 21R to be measured is measured, and a distribution state of the unmolten glass batches 70 in the partial region is recognized from the measured value of the occupying ratios so as to determine whether the quality of the molten state of the glass batch is favorable or not. When it is determined that the quality of the molten state of the glass batch is not favorable, the amounts of the glass batch to be charged into the melting bath 2 by batch chargers 4L, 4R are controlled so that appropriate distribution states can be obtained.
摘要:
A glass furnace includes a furnace chamber for containing glass melt and a screw conveyor for receiving glass batch material and feeding the glass batch material to the furnace chamber. A dam wall is disposed with respect to the screw conveyor such that batch material from the screw conveyor must flow upward over the dam wall before entering the furnace chamber. The top of the dam wall may be below the level of the melt pool in the furnace chamber.
摘要:
The invention provides a method for making MMV fibres from a charge which comprises a mixture of at least two types of briquettes. The overall chemical analysis of the briquette mixture gives initial melting temperature (I) when provided in the form of a single type of briquette. This single type of briquette also gives compression strength (i) over the operating temperature range 1,200 DEG C to 1,340 DEG C. The briquette mixture charged to the furnace is such that at least 30 wt.% of the charge is in the form of briquette which have IMT at least 20 DEG C greater than IMT (I) and/or is such that at least 30 wt.% of the charge comprises briquettes having compression strength over the working temperature range greater than compression strength (i) at each temperature.
摘要:
When waste glass that is highly contaminated with organic impurities is melted, these impurities cause the appearance of so-called 'black grains ' which cannot be eliminated in a subsequent refining process and which therefore impair the quality of the glass. According to the invention, gas nozzles (19) for introducing oxygen are arranged in the area of the feed opening (4) of a melting aggregate (2) which is thermally connected to a combustion chamber (3). The organic constituents are thus oxidised specifically and removed as waste gas (21). The invention enables even very highly contaminated waste glass, such as glass fibres, to be fed back into the production process.