IP Library › Granted Patent US 12,203,041
Granted Patent B2
US 12,203,041 · App. 18/232,151 · Granted Jan 21, 2025

Ground or unground rice husk used as fuel for glass, glaze and similar furnaces as a substitute for fossil fuels

Inventor: Enrique Ruben Bonifacio (Taboão Mogi das Cruzes, BR)
C10L5/445C10L2290/08C10L2290/28
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Quick Facts
Patent No.
US 12,203,041
App. No.
18/232,151
Granted
Jan 21, 2025
Kind
B2
Abstract

A process for using Rice Husk residue as an alternative fuel to fossil fuels (such as Natural Gas and LPP oils 1 A . . . 9 A), in the combustion chamber of the glass, glaze or similar furnace. Where a waste is collected in dump trucks and unloaded into a proper silo, then passes through a dryer feeding silo where it is atomized in the kiln combustion chamber, a high-pressure, low-flow fan is used to atomize it, along with all the necessary air, which can be used in oxy-combustion kilns; all the combustion gases are cooled by mixing with cold air and the incandescent gas from the kiln; and they are then collected and passed through a sleeve filter for proper filtration.

Claims (12)

1. A system for using ground or unground rice husk as fuel for a glass furnace as a substitute for fossil fuels, said system comprising a dryer, a storage silo, and a feeding system for the dryer, wherein the dryer comprises a grinding, classification, and atomization system capable of using rice husk as fuel, and wherein the ground or unground rice husk is stored in said storage silo and is ground in a grinder and then passed through fans and atomized in a combustion chamber of the glass furnace using combined burners in an oxygen-air burner.

2. The system for using ground or unground rice husk according to claim 1 , wherein the ground or unground rice husk is used as an alternative fuel for industrial furnaces.

3. The system for using ground or unground rice husk according to claim 1 , wherein the ground and unground rice husk is stored in said storage silo and transferred to a drying silo for dryer feeding.

4. The system for using ground or unground rice husk according to claim 1 , further comprising pre-drying of the ground or unground rice husk occurs during transferring the ground or unground rice husk to a stock silo.

5. The system for using ground or unground rice husk according to claim 4 , further comprising a discharge of the ground or unground rice husk from the storage silo to a drying conveyor to carry out a final drying process comprising vaporized heating, removing moisture residues, and feeding an atomizing fan which directs the ground or unground rice husk to said oxygen-air burner.

6. The system for using ground or unground rice husk according to claim 1 , wherein the ground or unground rice husk undergoes a grinding and classification process after drying, but before said ground or unground rice husk is atomized in the combustion chamber of the glass furnace.

7. The system for using according to claim 5 , wherein the final drying process further comprises oxidizers used in said oxygen-air burner.

8. The system for using ground or unground rice husk according to claim 1 , further comprising a feed flow using pipes in the glass furnace.

9. The system for using ground or unground rice husk according to claim 1 , wherein in said atomization process in the combustion chamber of said glass furnace, combustion occurs at 1,300° C. and heat is released in order to maintain the temperature of the combustion chamber.

10. The system for using ground or unground rice husk according to claim 1 , further comprising use of a high pressure fan and low air flow rate to provide air required for combustion, and wherein the combustion chamber is preheated, and wherein a secondary air is supplied by a secondary low pressure fan placed into the preheated combustion chamber.

11. The ground or unground rice husk ground or unground according to claim 1 , further comprises cooling of all combustion gases, mixing them with cold ambient air and the incandescent gas from said glass furnace, and then collecting and passing said combustion gases through a sleeve filter for filtration.

12. The ground or unground rice husk ground or unground according to claim 1 , wherein said system is carried out in an oxy-combustion furnace.

Priority Claims (1)
BR 102022015713-8 · Aug 9, 2022 · national
Continuity (1)
Related Publication 20240093110A1 · Mar 21, 2024
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