Submerged combustion glass manufacturing system and method

Patent metadata

Field	Value
Publication number	US-9957184-B2
Application number	US-201615271624-A
Country	US
Kind code	B2
Filing date	Sep 21, 2016
Priority date	Oct 7, 2011
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

Submerged combustion glass manufacturing systems include a melter having a floor, a roof, a wall structure connecting the floor and roof, and an exhaust passage through the roof. One or more submerged combustion burners are mounted in the floor and/or wall structure discharging combustion products under a level of material being melted in the melter and create turbulent conditions in the material. The melter exhausts through an exhaust structure connecting the exhaust passage with an exhaust stack. The exhaust structure includes a barrier defining an exhaust chamber having an interior surface, the exhaust chamber having a cross-sectional area greater than that of the exhaust stack but less than the melter. The barrier maintains temperature and pressure in the exhaust structure at values sufficient to substantially prevent condensation of exhaust material on the interior surface.

First claim

What is claimed is:

1. A submerged combustion method of manufacturing glass comprising:
melting glass-forming materials in a submerged combustion melter, the melter comprising a floor, a roof, and a wall structure connecting the floor and roof, and an exhaust passage through the roof;
combusting a fuel in one or more submerged combustion burners mounted in the floor and/or wall structure, the submerged combustion burners discharging combustion products under a level of the glass-forming material being melted in the melter and creating turbulent conditions in substantially all of the material; and
exhausting exhaust material from the melter through an exhaust structure fluidly connecting the exhaust passage with an exhaust stack, wherein the exhaust passage is substantially centrally located between a feed end and an exit end of the melter, and the exhausting of the exhaust material through the exhaust structure comprises exhausting the exhaust material substantially centrally between the feed end and the exit end of the melter, wherein the exhaust structure comprises:
a barrier preventing the exhaust material from contacting the atmosphere, the barrier defining an exhaust chamber having an interior surface, the barrier configured to maintain temperature and pressure in the exhaust structure at values sufficient to substantially prevent the exhaust material from condensing on the interior surface;
a liquid-cooled transition structure fluidly connecting the exhaust passage and the exhaust structure; and
an air inspirator fluidly connecting the barrier and the exhaust stack.

2. A submerged combustion glass manufacturing method comprising:
melting glass-forming materials in a submerged combustion melter, the melter comprising a floor, a roof, and a wall structure connecting the floor and roof, and an exhaust passage through the roof;
combusting a fuel in one or more submerged combustion burners mounted in the floor and/or wall structure, the submerged combustion burners discharging combustion products under a level of the glass-forming material being melted in the melter and creating turbulent conditions in substantially all of the material;
exhausting exhaust material from the melter through an exhaust structure fluidly connecting the exhaust passage with an exhaust stack, the exhaust structure comprising a barrier preventing the exhaust material from contacting the atmosphere, the barrier defining an exhaust chamber having an interior surface, the barrier configured to maintain temperature and pressure in the exhaust structure at values sufficient to substantially prevent the exhaust material from condensing on the interior surface; and
cooling the exhaust material prior to the exhaust chamber by flowing the exhaust material through a liquid-cooled transition structure fluidly connecting the exhaust passage and the barrier.

3. The method of claim 2 wherein the exhaust passage is substantially centrally located between a feed end and an exit end of the melter, and the exhausting of the exhaust material through the exhaust structure comprises exhausting the exhaust material substantially centrally between the feed end and the exit end of the melter.

4. A submerged combustion glass manufacturing method comprising:
melting glass-forming materials in a submerged combustion melter, the melter comprising a floor, a roof, and a wall structure connecting the floor and roof, and an exhaust passage through the roof;
combusting a fuel in one or more submerged combustion burners mounted in the floor and/or wall structure, the submerged combustion burners discharging combustion products under a level of the glass-forming material being melted in the melter and creating turbulent conditions in substantially all of the material;
exhausting exhaust material from the melter through an exhaust structure fluidly connecting the exhaust passage with an exhaust stack, the exhaust structure comprising a barrier preventing the exhaust material from contacting the atmosphere, the barrier defining an exhaust chamber having an interior surface, the barrier configured to maintain temperature and pressure in the exhaust structure at values sufficient to substantially prevent the exhaust material from condensing on the interior surface; and
inspiring air into the exhaust material through an air inspirator fluidly connecting the barrier and the exhaust stack.

5. The method of claim 4 wherein the exhaust passage is substantially centrally located between a feed end and an exit end of the melter, and the exhausting of the exhaust material through the exhaust structure comprises exhausting the exhaust material substantially centrally between the feed end and the exit end of the melter.

6. The method of claim 4 comprising adjusting the air inspirator to allow more or less air to enter the stack.

7. A submerged combustion glass manufacturing method comprising:
melting glass-forming materials in a submerged combustion melter, the melter comprising a floor, a roof, and a wall structure connecting the floor and roof, and an exhaust passage through the roof;
combusting a fuel in one or more submerged combustion burners mounted in the floor and/or wall structure, the submerged combustion burners discharging combustion products under a level of the glass-forming material being melted in the melter and creating turbulent conditions in substantially all of the material;
exhausting exhaust material from the melter vertically upward through a vertical exhaust structure fluidly connecting the exhaust passage with an exhaust stack, the vertical exhaust structure comprising a barrier preventing the exhaust material from contacting the atmosphere, the barrier defining a vertical exhaust chamber having an interior surface, the barrier configured to maintain temperature and pressure in the vertical exhaust structure at values sufficient to substantially prevent the exhaust material from condensing on the interior surface.

8. The method of claim 7 wherein the exhaust passage is substantially centrally located between a feed end and an exit end of the melter, and the exhausting of the exhaust material vertically upward through the vertical exhaust structure comprises exhausting the exhaust material substantially centrally between the feed end and the exit end of the melter.

9. The method of claim 7 comprising cooling the exhaust material prior to the vertical exhaust chamber by flowing the exhaust material vertically upward through a liquid-cooled transition structure fluidly connecting the exhaust passage and the barrier.

10. The method of claim 7 comprising inspiring air into the exhaust material through an air inspirator fluidly connecting the barrier and the exhaust stack.

11. The method of claim 10 comprising adjusting the air inspirator to allow more or less air to enter the stack.

Assignees

• Johns Manville

Inventors

• Huber Aaron Morgan
• Martin Marlon Keith

Classifications

• C03B2211/22

  by direct combustion in the melt · CPC title

• C03B5/237

  Regenerators or recuperators specially adapted for glass-melting furnaces · CPC title

• C03B2211/23

  using oxygen, i.e. pure oxygen or oxygen-enriched air · CPC title

• C03B5/193

  using gas, e.g. bubblers · CPC title

• C03B5/2353

  by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances · CPC title