Patent US3318686A successfully refreshed from Google Patents.
US3318686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for transporting particulate material to a metallurgical furnace
Assignee: Beazer East Inc
•
Filing: 1963-07-02
•
Granted: 1967-05-09
•
Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Elwood V Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:48
CPC Classifications
C; C21; C21B; C21B5/00; C21B5/001; C21B5/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
240 words
A METHOD OF INJECTING KPARTICULATE COAL PARTICLES INTO THE TUYERE ZONE OF A BLAST FURNACE WHICH COMPRISES (A) SUPPLYING PARTICULATE COAL TO A COLA FEEDER, (B) SUPPLYING A CONVEYING AIR STREAM AT SUPERATMOSPHERIC PRESSURE TO SAID COAL FEEDER, (C) ADMIXING SAID CONVEYING AIR STREAM AND SAID COAL PARTICLES IN SAID COAL FEEDER TO ENTRAIN COAL PATICLES IN SAID CONVEYING AIR STRTEAM AS A FLUIDIZED MASS OF SAID COLA PARTICLES SUSPENDED IN SAID CONVEYING AIR STREAM, (D) INTRODUCING SAID FLUIDIZED MASS INTO A PRIMARY CONDUIT AT A SUFFICIENT VELOCITY TO MAINTAIN SAID COAL PARTICLES SUSPENDED IN SAID CONVEYING AIR STREAM, (E) TRANSPORTING SAID FLUIDIZED MASS THROUGH SAID PRIMARY CONDUIT TO A FIRST SPLITER DEVICE, (F) MAINTAINING SAID JPARTICULATE COAL ENTRAINED IN SAID CONVEYING AIR STREAM AS A FLUIDIZED MASS IN SAID FIRST SPLITTER DEVICE, (G) DIVIDING SAID FLUIDIZED MASS IN SAID SPLITTER DEVICE INTO TWO SUBSTANTIALLY EQUAL AND SEPARAT STREAMS, (H) TRANSPORTING EACH OF SAID SEPARATE STREAMS AS A FLUIDIZED MASS THROUGH A SEPARATE SECONDARY CONDUIT TO A SECOND SPLITTER DEVICE. (I) MAINTAINING SAID PARTICULATE COAL ENTRAINED IN SAID CONVEYING AIR STREAM AS A FLUIDIZED MASS IN SAID SECOND SPLITTER DEVICE,, (J) DIVIDING EACH OF SAID STREAMS INTO TWO SEPARATE SMALLER SUBSTANTIALLY EQUAL SUBSTREAMS, (K) TRANSPORTING EAC OF SAID SUBSTREAMS THROUGH A TERTIARY CONDUIT TO THE TUYERE ZONE OF SAID BLAST FURNACE, AND (L) INTRODUCING SAID SEPARATE SUBSTREAMS FROM SAID TERTIARY CONDUITS INTO DIFFERENT QUADRANTS OF SAID BLAST FURNACE TUYERE ZONE.
Claim 2
Independent Claim
240 words
A METHOD OF INJECTING KPARTICULATE COAL PARTICLES INTO THE TUYERE ZONE OF A BLAST FURNACE WHICH COMPRISES (A) SUPPLYING PARTICULATE COAL TO A COLA FEEDER, (B) SUPPLYING A CONVEYING AIR STREAM AT SUPERATMOSPHERIC PRESSURE TO SAID COAL FEEDER, (C) ADMIXING SAID CONVEYING AIR STREAM AND SAID COAL PARTICLES IN SAID COAL FEEDER TO ENTRAIN COAL PATICLES IN SAID CONVEYING AIR STRTEAM AS A FLUIDIZED MASS OF SAID COLA PARTICLES SUSPENDED IN SAID CONVEYING AIR STREAM, (D) INTRODUCING SAID FLUIDIZED MASS INTO A PRIMARY CONDUIT AT A SUFFICIENT VELOCITY TO MAINTAIN SAID COAL PARTICLES SUSPENDED IN SAID CONVEYING AIR STREAM, (E) TRANSPORTING SAID FLUIDIZED MASS THROUGH SAID PRIMARY CONDUIT TO A FIRST SPLITER DEVICE, (F) MAINTAINING SAID JPARTICULATE COAL ENTRAINED IN SAID CONVEYING AIR STREAM AS A FLUIDIZED MASS IN SAID FIRST SPLITTER DEVICE, (G) DIVIDING SAID FLUIDIZED MASS IN SAID SPLITTER DEVICE INTO TWO SUBSTANTIALLY EQUAL AND SEPARAT STREAMS, (H) TRANSPORTING EACH OF SAID SEPARATE STREAMS AS A FLUIDIZED MASS THROUGH A SEPARATE SECONDARY CONDUIT TO A SECOND SPLITTER DEVICE. (I) MAINTAINING SAID PARTICULATE COAL ENTRAINED IN SAID CONVEYING AIR STREAM AS A FLUIDIZED MASS IN SAID SECOND SPLITTER DEVICE,, (J) DIVIDING EACH OF SAID STREAMS INTO TWO SEPARATE SMALLER SUBSTANTIALLY EQUAL SUBSTREAMS, (K) TRANSPORTING EAC OF SAID SUBSTREAMS THROUGH A TERTIARY CONDUIT TO THE TUYERE ZONE OF SAID BLAST FURNACE, AND (L) INTRODUCING SAID SEPARATE SUBSTREAMS FROM SAID TERTIARY CONDUITS INTO DIFFERENT QUADRANTS OF SAID BLAST FURNACE TUYERE ZONE.
Claim 3
Dependent Claim
216 words
APPARATUS FOR SELECTIVELY INJECTING PARTICULATE MATERIAL INTO PRESELECTED PORTIONS OF A METALLURGICAL FURNACE COMPRISING (A) A FEEDER DEVICE. (B) MEANS TO SUPPLY A CONVEYING AIR STREAM AT SUPERATOMOSPHERIC PRESSURE TO SAID FEEDER DEVICE, (C) SAID FEEDER DEVICE OPERABLE TO ADMIX PRESELECTED QUANTITIES OF PARTICULATE MATERIAL WITH CONVEYING AIR SUPPLIED THERETO TO ENTRAIN SAID COAL PARTICLES IN SAID CONVEYING AIR STREAM AS A FLUIDIZED MASS OF SAID PARTICULATE MATERIAL SUSPENDED IN SAID CONVEYING AIR, (D) CONDUIT MEANS TO CONVEY SAID FLUIDIZED MASS TO SAID METALLURGICAL FURNACE. (E) SAID CONDUIT MEANS INCLUDING A FIRST SPLITTER MEANS TO DIVIDE SAID FLUIDIZED MASS INTO MORE THAN TWO SUBSTANTIALLY EQUAL STREAMS, SECOND SPLITTER MEANS TO DIVIDE SAID STEAMS INTO SUBSTANTIALY EQUAL SUBSTREAMS WHILE SAID PARTICULATE MATERIAL REMAINS SUSPENDED IN SAID CONVEYING AIR STREAMS, AND THIRD SPLITTER MEANS TO FURTHER DIVIDE SAID SUBSTREAMS INTO SMALL ER SUBSTREAMS WHILE SAID JPARTICULATE MATERIAL REMAINS SUSPENDED IN SAID CONVEYING AIR STREAM, (F) SAID CONDUIT MEANS HAVING A PLURALITY OF SEPARATE OUTLETS ARRANGED AROUND THE PERIPHERY OF SAID METALLURGICAL FURNACE FOR INJECTING SEPARATE STREAMS OF SAID FLUIDIZED MASS INTO DIFFERENT PORTIONS OF SAID METALLURGICAL FURNACE, AND (G) VALVE MEANS IN SAID JCONDUIT MEANS TO CLOSE PRESELECTED PORTIONS OF SAID CONDUIT MEANS TO THEREBY INJECT STREAMS OF SAID FLUIDIZED MASS INTO PRESELECTED PORTIONS OF SAID METALLURGICAL FURNACE.
Claim 4
Dependent Claim
216 words
APPARATUS FOR SELECTIVELY INJECTING PARTICULATE MATERIAL INTO PRESELECTED PORTIONS OF A METALLURGICAL FURNACE COMPRISING (A) A FEEDER DEVICE. (B) MEANS TO SUPPLY A CONVEYING AIR STREAM AT SUPERATOMOSPHERIC PRESSURE TO SAID FEEDER DEVICE, (C) SAID FEEDER DEVICE OPERABLE TO ADMIX PRESELECTED QUANTITIES OF PARTICULATE MATERIAL WITH CONVEYING AIR SUPPLIED THERETO TO ENTRAIN SAID COAL PARTICLES IN SAID CONVEYING AIR STREAM AS A FLUIDIZED MASS OF SAID PARTICULATE MATERIAL SUSPENDED IN SAID CONVEYING AIR, (D) CONDUIT MEANS TO CONVEY SAID FLUIDIZED MASS TO SAID METALLURGICAL FURNACE. (E) SAID CONDUIT MEANS INCLUDING A FIRST SPLITTER MEANS TO DIVIDE SAID FLUIDIZED MASS INTO MORE THAN TWO SUBSTANTIALLY EQUAL STREAMS, SECOND SPLITTER MEANS TO DIVIDE SAID STEAMS INTO SUBSTANTIALY EQUAL SUBSTREAMS WHILE SAID PARTICULATE MATERIAL REMAINS SUSPENDED IN SAID CONVEYING AIR STREAMS, AND THIRD SPLITTER MEANS TO FURTHER DIVIDE SAID SUBSTREAMS INTO SMALL ER SUBSTREAMS WHILE SAID JPARTICULATE MATERIAL REMAINS SUSPENDED IN SAID CONVEYING AIR STREAM, (F) SAID CONDUIT MEANS HAVING A PLURALITY OF SEPARATE OUTLETS ARRANGED AROUND THE PERIPHERY OF SAID METALLURGICAL FURNACE FOR INJECTING SEPARATE STREAMS OF SAID FLUIDIZED MASS INTO DIFFERENT PORTIONS OF SAID METALLURGICAL FURNACE, AND (G) VALVE MEANS IN SAID JCONDUIT MEANS TO CLOSE PRESELECTED PORTIONS OF SAID CONDUIT MEANS TO THEREBY INJECT STREAMS OF SAID FLUIDIZED MASS INTO PRESELECTED PORTIONS OF SAID METALLURGICAL FURNACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |