NL6515685A - - Google Patents
Info
- Publication number
- NL6515685A NL6515685A NL6515685A NL6515685A NL6515685A NL 6515685 A NL6515685 A NL 6515685A NL 6515685 A NL6515685 A NL 6515685A NL 6515685 A NL6515685 A NL 6515685A NL 6515685 A NL6515685 A NL 6515685A
- Authority
- NL
- Netherlands
- Prior art keywords
- charge
- sensors
- signal
- signals
- rate
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/288—X-rays; Gamma rays or other forms of ionising radiation
- G01F23/2885—X-rays; Gamma rays or other forms of ionising radiation for discrete levels
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Blast Furnaces (AREA)
- Manufacture Of Iron (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Measurement Of Radiation (AREA)
Abstract
1,119,165. Monitoring charge movement in shaft furnaces. GESELLSCHAFT ZUR FORDERUNG DER EISENHUTTENTECHNIK m.b.H. 2 Dec., 1965 [2 Dec., 1964], No. 51276/65. Heading F4B. An arrangement for monitoring the movement of the charge in a shaft furnace comprises at least one pair of radio-active sensors arranged one above the other to emit signals when the charge falls below the level of each sensor, the signals being fed to devices which produce an indication proportional to the rate of descent of the charge. The signals from the sensors may be used to start, stop or restart integrators forming the time integral of the blast rate, which in normal operation is proportional to the rate of charge descent. If this integral exceeds the appropriate value before the upper sensor emits its signal, the charge has bridged above it, and a warning light is energized. Similarly, a warning is given if the charge bridges between the upper and lower sensors. When the integral reaches a set value after being returned to zero at the signal from the lower sensor, a charge signal is energized or an automatic charging process initiated. Several pairs of sensors may be spaced round the furnace to eliminate errors due to a slanting charge surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1964G0042165 DE1293177B (en) | 1964-12-02 | 1964-12-02 | Device for monitoring the loading sequence of blast furnaces u. Like shaft ovens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6515685A true NL6515685A (en) | 1966-06-03 |
Family
ID=7126870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6515685A NL6515685A (en) | 1964-12-02 | 1965-12-02 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE673175A (en) |
| DE (1) | DE1293177B (en) |
| FR (1) | FR1454995A (en) |
| GB (1) | GB1119165A (en) |
| NL (1) | NL6515685A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU511223B2 (en) * | 1975-08-20 | 1980-08-07 | Mishima Kosan Co. Ltd. | Metal refining method and apparatus |
| JPS537505A (en) * | 1976-07-09 | 1978-01-24 | Nippon Steel Corp | Operating process of blast furnace |
| JPS58727B2 (en) * | 1980-01-09 | 1983-01-07 | 株式会社神戸製鋼所 | Estimation method of cohesive zone shape in blast furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1049406B (en) * | 1959-01-29 | |||
| DE684114C (en) * | 1938-03-11 | 1939-11-22 | Bochumer Ver Fuer Gussstahlfab | Procedure for determining the height of the loading column in shaft furnaces |
-
1964
- 1964-12-02 DE DE1964G0042165 patent/DE1293177B/en active Pending
-
1965
- 1965-12-01 FR FR40398A patent/FR1454995A/en not_active Expired
- 1965-12-02 BE BE673175D patent/BE673175A/xx unknown
- 1965-12-02 NL NL6515685A patent/NL6515685A/xx unknown
- 1965-12-02 GB GB5127665A patent/GB1119165A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1293177B (en) | 1969-04-24 |
| FR1454995A (en) | 1966-10-07 |
| GB1119165A (en) | 1968-07-10 |
| BE673175A (en) | 1966-04-01 |
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