GB1372073A - Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical products - Google Patents
Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical productsInfo
- Publication number
- GB1372073A GB1372073A GB4621171A GB4621171A GB1372073A GB 1372073 A GB1372073 A GB 1372073A GB 4621171 A GB4621171 A GB 4621171A GB 4621171 A GB4621171 A GB 4621171A GB 1372073 A GB1372073 A GB 1372073A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- current
- signal
- sensed
- measured
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
- H05B7/148—Automatic control of power
- H05B7/156—Automatic control of power by hydraulic or pneumatic means for positioning of electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
1372073 Automatic control of arc furnaces UNION CARBIDE CORP 5 Oct 1971 [5 Oct 1970] 46211/71 Heading G3R The current in a submerged arc furnace is maintained at an optimum value by generating a control signal in dependence on measured current and electrode position, and using the signal to adjust the electrode within a given range. As shown, calcium carbide is produced in a furnace 302 with at least one hollow electrode 301 around which is packed a mixture of lime and carbon reducing material. Further reactants are supplied through the electrode to the reaction zone 303. The electrode current is continuously measured and combined with pre-set tolerance and current reference values to produce a signal which causes hydraulic pistons 307 to adjust the electrode position by small increments. The electrode tip position, which may be sensed by thermocouples, is compared with upper and lower limits, and if out of range, the reference current signal is modified, and the reactant feed is controlled until the position is again in the desired range. Electrode consumption is measured as a function of power generation and determines electrode slip using bands 310, 312 energized hydraulically. The current reference value is reduced during slip intervals. The temperature at a tap hole 309 is sensed by a pyrometer to give an indication of carbide quality, and deviations of the quality from a pre-determined value are corrected by regulation of reactant feed. Coolant water flow and pressure are sensed by meters 329, 330, 331 which actuate alarms if pre-set values are exceeded.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7785370A | 1970-10-05 | 1970-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1372073A true GB1372073A (en) | 1974-10-30 |
Family
ID=22140440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4621171A Expired GB1372073A (en) | 1970-10-05 | 1971-10-05 | Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical products |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5722884B1 (en) |
| AT (1) | AT324722B (en) |
| AU (1) | AU464385B2 (en) |
| BE (1) | BE773467A (en) |
| CA (1) | CA958055A (en) |
| DE (1) | DE2149258B2 (en) |
| FR (1) | FR2110972A5 (en) |
| GB (1) | GB1372073A (en) |
| LU (1) | LU63997A1 (en) |
| NO (1) | NO141298C (en) |
| SE (1) | SE387215B (en) |
| YU (1) | YU35397B (en) |
| ZA (1) | ZA715661B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296269A (en) * | 1977-06-29 | 1981-10-20 | National Institute For Metallurgy | Control of electrical arc furnaces |
| FI64486C (en) * | 1982-04-16 | 1983-11-10 | Outokumpu Oy | SAETT ATT REGLERA OCH BALANSERA EFFEKTEN HOS EN ELEKTRISK UGN |
| JPH0356589U (en) * | 1989-10-03 | 1991-05-30 | ||
| RU2516360C2 (en) * | 2012-05-03 | 2014-05-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный университет" | Method to control electric arc mode of melting of ore-thermal furnace in production of phosphorus |
| CN114199039A (en) * | 2021-12-24 | 2022-03-18 | 鄂尔多斯市君正能源化工有限公司 | Automatic measuring system and method for submerged arc furnace electrode furnace entering depth |
-
1971
- 1971-08-24 ZA ZA715661A patent/ZA715661B/en unknown
- 1971-08-27 CA CA121,528A patent/CA958055A/en not_active Expired
- 1971-10-02 DE DE2149258A patent/DE2149258B2/en not_active Withdrawn
- 1971-10-04 JP JP7779671A patent/JPS5722884B1/ja active Pending
- 1971-10-04 BE BE773467A patent/BE773467A/en unknown
- 1971-10-04 YU YU2506/71A patent/YU35397B/en unknown
- 1971-10-04 FR FR7135701A patent/FR2110972A5/fr not_active Expired
- 1971-10-04 SE SE7112517A patent/SE387215B/en unknown
- 1971-10-04 NO NO3640/71A patent/NO141298C/en unknown
- 1971-10-04 AT AT854571A patent/AT324722B/en not_active IP Right Cessation
- 1971-10-04 LU LU63997D patent/LU63997A1/xx unknown
- 1971-10-05 GB GB4621171A patent/GB1372073A/en not_active Expired
- 1971-10-05 AU AU34157/71A patent/AU464385B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2149258B2 (en) | 1980-10-09 |
| DE2149258A1 (en) | 1972-04-06 |
| AU3415771A (en) | 1973-04-12 |
| BE773467A (en) | 1972-04-04 |
| SE387215B (en) | 1976-08-30 |
| FR2110972A5 (en) | 1972-06-02 |
| ZA715661B (en) | 1972-04-26 |
| CA958055A (en) | 1974-11-19 |
| LU63997A1 (en) | 1972-06-28 |
| YU250671A (en) | 1980-06-30 |
| JPS5722884B1 (en) | 1982-05-15 |
| AT324722B (en) | 1975-09-10 |
| YU35397B (en) | 1980-12-31 |
| AU464385B2 (en) | 1975-08-28 |
| NO141298C (en) | 1980-02-06 |
| NO141298B (en) | 1979-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |