Processes for making inorganic fibers
AssigneeJohns Manville
InventorsHarley Allen Borders, Michael R. Nijakowski, William J. Thome, Raymond L. McKenzie
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AssigneeJohns Manville
InventorsHarley Allen Borders, Michael R. Nijakowski, William J. Thome, Raymond L. McKenzie
Estimating the term…
Inorganic fiber production processes and systems are disclosed. One process includes providing a molten inorganic fiberizable material, forming substantially vertical primary fibers from the molten material, and attenuating the primary fibers using an oxy-fuel fiberization burner. Other processes include forming a composition comprising combustion gases, aspirated air and inorganic fibers, and preheating a fuel stream and/or an oxidant stream prior to combustion in a fiberization burner using heat developed during the process. Flame temperature of fiberization burners may be controlled by monitoring various burner parameters.
A process comprising:
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By blasting or blowing molten glass, e.g. for making staple fibres: starting from tubes, rods, fibres or filaments
Glass production, e.g. reusing waste heat during processing or shaping: improving the yield, e-g- reduction of reject rates
Manufacture, shaping, or supplementary processes
Low-carbon manufacturing
About 2 years 8 months of term left · ends 25 Jun 2029 (estimated)
1. Field of Invention
The present invention relates generally to the field of inorganic fiber production and systems, and more specifically to heat exchange and control strategies useful in flame attenuation fiberization processes producing inorganic microfibers and other fibers.
2. Related Art
The manner in which the objectives of the invention and other desirable characteristics can be obtained is explained in the following description and attached drawings in which:
FIG. 1 is a schematic process flow diagram of a prior art fiberization process that may benefit from the improvements presented by the present invention;
FIGS. 2-5 are schematic block diagrammatical views of four non-limiting systems and processes in accordance with the invention;
It is to be noted, however, that the appended drawings are not to scale and illustrate only typical embodiments of this invention, and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
In the following description, numerous details are set forth to provide an understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these details and that numerous variations or modifications from the described embodiments may be possible.
All phrases, derivations, collocations and multiword expressions used herein, in particular in the claims that follow, are expressly not limited to nouns and verbs. It is apparent that meanings are not just expressed by nouns and verbs or single words. Languages use a variety of ways to express content. The existence of inventive concepts and the ways in which these are expressed varies in language-cultures. For example, many lexicalized compounds in Germanic languages are often expressed as adjective-noun combinations, noun-preposition-noun combinations or derivations in Romantic languages. The possibility to include phrases, derivations and collocations in the claims is essential for high-quality patents, making it possible to reduce expressions to their conceptual content, and all possible conceptual combinations of words that are compatible with such content (either within a language or across languages) are intended to be included in the used phrases.