Furnace for heating particles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 29, 2007
app pub date -
May 25, 2006
filing date -
May 25, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A bottom-up cocurrent combustion furnace for the production of synthetic microspheres by thermal expansion of glass particles is provided having improved characteristics with regard to anti-fouling, process efficiency, and yield. The disclosed furnace uses preheated combustion air to preheat the feed material and to convey the feed material in a dilute phase transport regime to a burner. The combustion air, fuel, and feed material are premixed prior to being injected though the burner. The feed material rapidly expands as it is ejected through the burner and through a flame and then rapidly cools to solidify the microspheres. Additional features are provided to prevent the furnace from fouling by keeping the feed material away from the furnace walls, removing feed material that adheres to the furnace walls, and collecting feed material that agglomerates or does not expand.
First Claim
Family
International Classification(s)
Cited Art Landscape
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| * 4519777 Method and apparatus for bloating granular material | 13 | 1982 | |
| * 5743393 Protective package for heavy objects | 22 | 1997 | |
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| * 6254981 Fused glassy particulates obtained by flame fusion | 56 | 1999 | |
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| * 6105888 Cyclonic processing system | 14 | 1999 | |
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| * 4661137 Process for producing glass microspheres | 74 | 1985 | |
| * 5256180 Apparatus for production of hollow glass microspheres | 20 | 1993 | |
|
|
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| * 4512736 Apparatus for the expansion of mineral matter, especially perlite and vermiculite | 17 | 1982 | |
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| * 5253991 Apparatus for producing spheroidal inorganic particulate material | 76 | 1991 | |
|
|
|||
| * 5618173 Apparatus for burning oxygenic constituents in process gas | 15 | 1994 | |
| * 5609833 Process and apparatus for burning oxygenic constituents in process gas | 15 | 1995 | |
| * 5676536 Raw gas burner and process for burning oxygenic constituents in process gas | 16 | 1995 | |
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|
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| * 5558822 Method for production of spheroidized particles | 54 | 1995 | |
|
|
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| * 5655853 Vertical-shaft airlock | 19 | 1994 | |
|
|
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| * 6367288 Method and apparatus for preventing burner-hole build-up in fused silica processes | 15 | 1999 | |
|
|
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| * 4752061 Infrared heating of fluidized bed furnace | 29 | 1986 | |
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| * 5190737 High yield manufacturing process for silicon carbide | 23 | 1991 | |
|
|
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| * 5611833 Method and apparatus for producing spheroidal glass particles | 27 | 1994 | |
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|
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| * 4643753 Method for making spherical particles | 21 | 1985 | |
| * 4677022 Process for making lightweight body suitable for use as an additive in an article of manufacture, such lightweight body itself, and composite containing same | 22 | 1986 | |
| * 4749398 Apparatus for making spherical particles | 15 | 1986 | |
| * 4983550 Hollow glass spheres | 47 | 1988 | |
| * 5217928 Hollow glass spheres | 23 | 1991 | |
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|
|||
| * 4347155 Energy efficient perlite expansion process | 16 | 1981 | |
|
|
|||
| * 6360563 Process for the manufacture of quartz glass granulate | 17 | 2000 | |
|
|
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| * 5676563 Snow-melting tile wiring unit | 24 | 1995 | |
|
|
|||
| * 5154596 Methods and apparatus for burning fuel with low NO.sub.x formation | 69 | 1992 | |
| * 6027330 Low NO.sub.x fuel gas burner | 23 | 1997 | |
|
|
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| * 4475936 Apparatus for the heat processing of particulate materials | 36 | 1983 | |
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|
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| * 5559170 Compositions comprising fused particulates and methods of making them | 20 | 1995 | |
| * 5883029 Compositions comprising fused particulates and methods of making them | 29 | 1997 | |
|
|
|||
| * 5022897 Method for hazardous waste removal and neutralization | 30 | 1989 | |
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|
|||
| * 5002696 Expanded mineral particles and apparatus and method of production | 24 | 1988 | |
|
|
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| * 4602962 Process for producing an expanded mineral material | 17 | 1984 | |
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|
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| * 5143534 Heat processing of particulate material with a quenching gas which swirls around the processing zone | 21 | 1990 | |
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|
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| * 4487620 Method and apparatus for manufacturing rounded vitreous beads | 24 | 1983 | |
| * 4904292 Spherulizing furnace and process of manufacturing vitreous beads | 17 | 1988 | |
| * 4894081 Spherulizing furnace | 17 | 1988 | |
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| * 6551567 Spherical silica particles and method of production | 21 | 2001 | |
| * 6387302 Method of producing spherical silica powder | 16 | 2001 | |
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|
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| * 4629413 Low NO.sub.x premix burner | 85 | 1984 | |
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| * 4928479 Annular combustor with tangential cooling air injection | 34 | 1987 | |
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| * 5117770 Combustion unit | 19 | 1991 | |
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| * 6258456 Spheroidal slag particles and apparatus and process for producing spheroidal slag and fly ash particles | 46 | 1998 | |
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