Claims
- 1. A method of combustion of coal-fluid mixture with combustible gas-air mixture in a combustion device comprising the sequential steps of:
- (A) introducing a hollow sheath of coal-fluid mixture into a chamber in a combustion device while simultaneously spirally swirling the sheath in a predetermined direction and maintaining the sheath in an organic relationship; and
- (B) introducing a spirally swirling and organized combustible gas-air mixture internally within the hollow sheath with the motion of the combustible gas-air mixture being in the same swirling direction as the predetermined direction of the coal-fluid mixture to minimize any general mixing of the combustible gas-air mixture with the coal-fluid mixture and to promote volatilization and enhance the more complete combustion of the coal-fluid mixture by the combustible gas-air mixture to produce a flame by inwardly igniting the gas-air mixture within the hollow sheath of coal-fluid mixture.
- 2. In the method of claim 1 wherein the coal-fluid mixture is a coal-water slurry.
- 3. In the method of claim 1 wherein the coal-fluid mixture is coal-air.
- 4. In the method according to claim 1 further comprising the step of (c) introducing chemical additives into the combustion device to scrub the flame produced therein thereby to reduce the SO.sub.2 emissions.
- 5. In the method according to claim 1 further comprising the step of (C) introducing a ring of the combustible gas-air mixture outwardly about the sheath of the coal-fluid mixture to form a ring thereabout to further promote the volatilization and more complete combustion of the coal-fluid mixture by the ring of the combustible gas-air mixture to produce a flame by outwardly igniting the ring of the gas-air mixture outwardly of the hollow sheath of coal-fluid mixture.
- 6. In the method according to claim 5 wherein step (A) is performed in a predetermined diameter hollow sheath, and wherein said step (A) further comprising the step of (D) reducing the hollow sheath diameter by a predetermined value as the hollow-sheath of the coal-air mixture is being ignited by the ring of the combustible gas-air mixture.
- 7. A method according to claim 5 wherein the gas-air mixture introduced in step (B) and step (C) is in the ratio of about 3:1.
- 8. A method according to claim 5 wherein the coal-air mixture introduced in step (A) is in the range of between 90 and 50 by energy release proportion to the gas-air mixture and the gas-air mixture introduced in steps (A) and (C) correspondingly in the range of between 10 and 50 by energy release proportion to the coal-air mixture.
- 9. A method of combustion of coal-fluid mixture with a combustible gas-air mixture in a combustion device comprising the sequential steps of:
- (A) igniting a ring of the combustible gas-air mixture until the combustion device reaches a sufficiently high predetermined temperature;
- (B) introducing into the combustion device a spirally swirling and organized coal-fluid mixture hollow sheath through the ring to promote volatilization and to enhance the more complete combustion of the coal-fluid mixture;
- (C) introducing a stream of the combustible gas-air mixture within the hollow sheath to achieve the most complete combustion of the coal-fluid mixture being ignited outwardly of the sheath by the gas-air mixture ring and ignited inwardly of the sheath by the gas-air mixture stream; and
- (D) producing a flame from the ring of the combustible gas-air mixture ring, the coal-fluid mixture and the gas-air mixture stream.
- 10. In the method of claim 9 wherein the coal-fluid mixture is a coal-water slurry.
- 11. In the method according to claim 9 further comprising the step of (E) introducing chemical additives into the combustion device to scrub the flame produced therein thereby to reduce the SO.sub.2 emissions.
- 12. In the method of claim 9 wherein step (C) further comprises the step of (E) spirally swirling the stream of gas-air mixture.
- 13. In the method of claim 12 wherein step (E) reinforces the spirally swirling motion of the coal-fluid mixture and minimizes any general mixing of the gas-air stream and the coal-fluid mixture.
- 14. In the method of claim 9 wherein the coal-fluid mixture is coal-air.
- 15. In the method according to claim 14 wherein step (B) is performed in a predetermined diameter hollow sheath, and wherein step (B) further comprises the step of (E) reducing the hollow sheath diameter by a predetermined value as the hollow sheath of the coal-air mixture is being ignited by the ring of the combustible gas-air mixture.
- 16. In the method of claim 15 further comprising the step of (F) introducing a steam of the gas-air mixture within the hollow sheath to achieve the most complete combustion of the coal-air mixture being ignited outwardly of the sheath by the gas-air mixture ring and ignited inwardly of the sheath by the gas-air mixture stream.
- 17. In the method according to claim 16 further comprising the step of (G) introducing chemical additives into the combustion device to scrub the flame produced therein thereby to reduce the SO.sub.2 emissions.
- 18. A method according to claim 16 wherein the gas-air mixture introduced in step (F) and in step (A) is in the ratio of about 3:1.
- 19. A method according to claim 16 wherein the coal-air mixture introduced in step (B) is in the range of between 90 and 50 by energy release proportion to the gas-air mixture the gas-air mixture introduced in steps (F) and (A) is correspondingly in the range of between 10 and 50 by energy release proportion to the coal-air mixture.
Parent Case Info
This application is a continuation of application Ser. No. 500,393, filed June 2, 1983, now abandoned, which was a division of application Ser. No. 306,177, filed Sept. 28, 1981, now abandoned.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
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Parent |
306177 |
Sep 1981 |
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Continuations (1)
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Number |
Date |
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Parent |
500393 |
Jun 1983 |
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