US3799368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading system for blast-furnace
Assignee: Individual
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Filing: 1971-12-02
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Granted: 1974-03-26
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Expires: 1991-12-02
Abstract
Abstract A loading system for a blast-furnace having a very high counterpressure, characterized by a rotary distributor, a throat member and a ring member mounted between the said distributor and throat member, the said ring member being gas sealed at high pressure and temperature, the said distributor comprises a conical spout adapted to rotate with the ring member, a weir pipe connected to said spout at an angle of approximately 40* to 50* from the vertical, a liquid tubing located along the axis of rotation of the said distribuotr and ring member, the said tubing adapted to receive a cooled liquid for cooling the spout, the said spout being adapted to spread materials such as coke, sintered ores, and various additions inside a blast-furnace to give the said materials an M profile.
Inventors
- 👤 J Wieczorek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:32
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/18; C21B7/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
A blast-furnace and loading system therefor comprising: a. a blast-furnace having upright walls and an upper throat area; b. a loading system including a rotary distributor having a plurality of weir pipes extending into said throat area; c. each of said weir pipes having a discharge opening, said discharge openings being disposed in radially staggered relationship relative to each other, the radially outermost discharge opening being spaced radially inwardly from said furnace walls a substantial distance; d. whereby said loading system may spread a plurality of different materials and may give to the materials in the blastfurnace a profile having a cross-section with a plural M configuration.
Claim 2
Dependent Claim
107 words
A blast-furnace and loading system therefor comprising: a. a blast-furnace having upright walls and an upper throat area; b. a loading system including a rotary distributor having a plurality of weir pipes extending into said throat area; c. each of said weir pipes having a discharge opening, said discharge openings being disposed in radially staggered relationship relative to each other, the radially outermost discharge opening being spaced radially inwardly from said furnace walls a substantial distance; d. whereby said loading system may spread a plurality of different materials and may give to the materials in the blastfurnace a profile having a cross-section with a plural M configuration.
Claim 3
Dependent Claim
47 words
A system as recited in claim 1, wherein the radially innermost discharge opening is spaced a substantial distance from the axis of rotation of the rotary distributor to further facilitate formation of a material profile in the blast furnace having a cross-section with a plural M configuration.
Claim 4
Dependent Claim
74 words
A system as recited in claim 1 wherein: a. said rotary distributor includes a plurality of concentrically disposed spouts, each spout communicating with one of said weir pipes; b. a pair of inlets communicating with each of said spouts and means associated with each inlet for closing one inlet when the other is open, whereby, through alternate use of said inlets, material may be substantially continuously fed into the blast-furnace without loss of pressure.
Claim 5
Dependent Claim
18 words
A system as recited in claim 1 wherein said weir pipes are disposed in side-by-side, staggered parallel relationship.
Claim 6
Dependent Claim
138 words
A loading system for a blast-furnace comprising: a. two rotary distributors; b. two weir pipes, each communicating with one of said rotary distributors, said weir pipes being disposed in staggered parallel relationship; c. two sets, each of which includes a pair of material hoppers communicating with said rotary distributor and a pair of valve means, each valve means being disposed between one of said hoppers and said rotary distributor; d. one valve means of each pair blocking communication between one of said hoppers of said pair and one rotary distributor while the other valve of said pair is open, whereby one hopper may be filled while the other is discharged, whereby alternate filling and discharge of said pair of hoppers of each set effects a substantially continuous feeding of material into the blast furnace without loss of pressure.
Claim 7
Dependent Claim
138 words
A loading system for a blast-furnace comprising: a. two rotary distributors; b. two weir pipes, each communicating with one of said rotary distributors, said weir pipes being disposed in staggered parallel relationship; c. two sets, each of which includes a pair of material hoppers communicating with said rotary distributor and a pair of valve means, each valve means being disposed between one of said hoppers and said rotary distributor; d. one valve means of each pair blocking communication between one of said hoppers of said pair and one rotary distributor while the other valve of said pair is open, whereby one hopper may be filled while the other is discharged, whereby alternate filling and discharge of said pair of hoppers of each set effects a substantially continuous feeding of material into the blast furnace without loss of pressure.
Claim 8
Dependent Claim
40 words
A loading system as recited in claim 5 including three of said sets, three rotary distributors and three weir pipes, each weir pipe comMunicating with one of said rotary distributors, said weir pipes being disposed in a staggered parallel relationship.
Claim 9
Dependent Claim
48 words
A loading system as recited in claim 6, wherein said rotary distributors and weir pipes are adapted to spread materials inside a blast-furnace to give a M profile, said system further comprising means for alternatively modifying the system from a M profile, to 2M profile and 3M profile.
Claim 10
Dependent Claim
28 words
A loading system as recited in claim 5, wherein said pair of hoppers of at least one set each have a half-cylindrical cross-section with a common median wall.
Claim 11
Dependent Claim
102 words
A loading system as defined in claim 5 wherein each of said sets further comprises: a. a feeding duct communicating with both hoppers of said pair; b. a pair of upper-swing valves, each swing valve being associated with one of said hoppers of said pair for opening and closing communication between said feeding duct and said pair of hoppers of each set; c. a pair of rotary extractors each of which is disposed between one hopper of said pair and one rotary distributor for controlling the flow of material from each hopper of said pair when its associated valve means is open.
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |