GB1139747A - Automatic stove selection system for blast furnaces - Google Patents
Automatic stove selection system for blast furnacesInfo
- Publication number
- GB1139747A GB1139747A GB28487/66A GB2848766A GB1139747A GB 1139747 A GB1139747 A GB 1139747A GB 28487/66 A GB28487/66 A GB 28487/66A GB 2848766 A GB2848766 A GB 2848766A GB 1139747 A GB1139747 A GB 1139747A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stove
- blast
- stoves
- valve
- hottest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/10—Other details, e.g. blast mains
- C21B9/12—Hot-blast valves or slides for blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/10—Other details, e.g. blast mains
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
- G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Control Of Combustion (AREA)
- Drying Of Solid Materials (AREA)
- Basic Packing Technique (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
1,139,747. Thermal regenerators. S. P. KINNEY ENG. Inc. 24 June, 1966 [5 Jan., 1966], No. 28487/66. Heading F4K. An arrangement for selecting in a multistore blast furnace installation, the hottest of a plurality of stoves comprises means 23 sensing the temperatures of the stoves and generating an electrical signal indicative of the temperature of each stove, means (such as a detecting relay 26, Fig. 3) for comparing the signals and producing an output signal indicative of the hottest of the stoves, and means (such as a selective relay SR-I, II, or III, Fig. 3) responsive to the output signal for establishing as the stove next to go ON BLAST the stove whose temperature produced the output signal. In an arrangement described for three or more stoves, the signals from a first plurality (less than the total number of stoves) are first compared; then the hottest of these is compared with the remainder; and finally the hottest of these latter is selected as the stove to go ON BLAST In the three-stove arrangement shown, 10 is the blast furnace bustle pipe and I, II and III are the stoves. A temperature sensing device 22 in the hot blast main 17 maintains a preselected temperature of blast passing to the furnace, by regulation of the cold blast throttling valve CBTV to the stoves and a mixer valve MTV in a stove-by-pass line 15. When the stove in use is at its hottest the throttling valve CBTV is only partially open and the mixer valve MTV is fully open. As this stove becomes cooler the throttling valve is gradually opened to its fully open position and thereafter the mixer valve begins to close until substantially all of the blast air is passed through the stove via main 13. Ultimate closure of the mixing valve MTV closes contacts (25, see Fig. 3) on said valve and initiates the selection sequence to bring another stove into use whilst the former stove is put into the ON GAS condition for reheating. The selection circuit (24) remains energized until reopening of the mixer valve MTV and consequent opening of the selection initiating switch (25). A conventional snort valve is provided as shown to relieve the pressure of the blast entering the furnace if an emergency occurs in the furnace.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US518874A US3348832A (en) | 1966-01-05 | 1966-01-05 | Automatic stove selection system for blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1139747A true GB1139747A (en) | 1969-01-15 |
Family
ID=24065855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28487/66A Expired GB1139747A (en) | 1966-01-05 | 1966-06-24 | Automatic stove selection system for blast furnaces |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3348832A (en) |
| DE (1) | DE1508036A1 (en) |
| ES (1) | ES326837A1 (en) |
| GB (1) | GB1139747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112029941A (en) * | 2020-08-13 | 2020-12-04 | 北京首钢自动化信息技术有限公司 | Cold air valve closing valve control circuit and hot blast stove control system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631920A (en) * | 1970-02-25 | 1972-01-04 | Kureha Chemical Ind Co Ltd | Changeover-type regenerative heat-exchange apparatus |
| US20130196277A1 (en) * | 2011-08-09 | 2013-08-01 | John N. Newby | Regenerative Air Heater And Method of Operation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2931635A (en) * | 1957-09-09 | 1960-04-05 | Zimmerman & Jansen G M B H | Electrically operated stove changing control apparatus for blast furnaces |
| US3034775A (en) * | 1959-07-16 | 1962-05-15 | Zimmermann & Jansen Gmbh | Automatic change-over system for blast stoves for blast furnaces |
| US3153532A (en) * | 1960-08-11 | 1964-10-20 | Interlake Iron Corp | Method and means for operating a blast furnace |
| DE1214822B (en) * | 1962-02-16 | 1966-04-21 | Koppers Gmbh Heinrich | Control device for regenerative gas or wind heater systems |
| US3178160A (en) * | 1962-08-27 | 1965-04-13 | Zimmermann & Jansen Gmbh | Multi-stove blast furnace installation with staggered operation of stoves |
| US3199849A (en) * | 1963-01-15 | 1965-08-10 | Midland Ross Corp | Means for heating blast furnace air |
-
1966
- 1966-01-05 US US518874A patent/US3348832A/en not_active Expired - Lifetime
- 1966-05-17 ES ES0326837A patent/ES326837A1/en not_active Expired
- 1966-05-25 DE DE19661508036 patent/DE1508036A1/en active Pending
- 1966-06-24 GB GB28487/66A patent/GB1139747A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112029941A (en) * | 2020-08-13 | 2020-12-04 | 北京首钢自动化信息技术有限公司 | Cold air valve closing valve control circuit and hot blast stove control system |
| CN112029941B (en) * | 2020-08-13 | 2021-12-10 | 北京首钢自动化信息技术有限公司 | Cold air valve closing valve control circuit and hot blast stove control system |
Also Published As
| Publication number | Publication date |
|---|---|
| US3348832A (en) | 1967-10-24 |
| DE1508036A1 (en) | 1969-10-16 |
| ES326837A1 (en) | 1967-03-16 |
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