GB1364148A - Control of iron ore agglomeration - Google Patents
Control of iron ore agglomerationInfo
- Publication number
- GB1364148A GB1364148A GB4808272A GB4808272A GB1364148A GB 1364148 A GB1364148 A GB 1364148A GB 4808272 A GB4808272 A GB 4808272A GB 4808272 A GB4808272 A GB 4808272A GB 1364148 A GB1364148 A GB 1364148A
- Authority
- GB
- United Kingdom
- Prior art keywords
- error
- regulate
- compared
- measured
- reference value
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
- C22B1/205—Sintering; Agglomerating in sintering machines with movable grates regulation of the sintering process
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1364148 Automatic sintering control CENTRE DE RECHEKCHES METALLURGIQUES 18 Oct 1972 [18 Oct 1971] 48082/72 Heading C1A [Also in Division G3] A continuous process for sintering iron ore is automatically. controlled by at least three closed loop systems: (a) the gas permeability of the sintered material is measured, compared with a reference P<0> and the error used to regulate the addition of water to the process input, (b) a "magnetic index" of the sintered material is measured, compared with a reference (MI)<0> and the error used to regulate the fuel supplied to the process, and (c) the position of the breakthrough of the flame front is measured, compared with a reference (PP)‹ and the error used to regulate either the speed of a belt which conveys the material through the process or the speed of a ventilating fan. In the embodiment there is a fourth loop in which the weight of a hopper of return fines, either from the process alone or from the process plus those from a subsequent blast furnace, is compared with a reference value (PT)‹ and the error used to regulate the quantity of return fines fed to the process. The weight of the hopper is deduced from continuous measurement of the weight of return fines fed to it and those leaving it. This error is also used to regulate the fuel by addition to the MI error. The reference value P‹ is automatically varied by an arrangement which assesses the effect of added water on a given raw material (which varies); variations #Q in the water supply are deliberately imposed by a signal generator nd their effect #P is measured by a filter; the ratio #P/#Q is compared with a reference value and any error adjusts P‹. A change in P‹ also adjusts the belt or fan speed by addition to the signal from a comparator. The reference value (MI)<0> is also automatically adjusted in response to periodic measurements of the quality of the product, i.e. its strength and/or reducibility and/or its molecular analysis. The gain and dead band of the various regulators may be automatically adjusted according to variations in the mixture being processed and belt speed respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE774118A BE774118A (en) | 1971-10-18 | 1971-10-18 | PROCESS FOR CONTROL OF THE AGGLOMERATION PROCESS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1364148A true GB1364148A (en) | 1974-08-21 |
Family
ID=3858770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4808272A Expired GB1364148A (en) | 1971-10-18 | 1972-10-18 | Control of iron ore agglomeration |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE774118A (en) |
| FR (1) | FR2156811B1 (en) |
| GB (1) | GB1364148A (en) |
| LU (1) | LU66291A1 (en) |
| NL (1) | NL7214076A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942734B2 (en) * | 1980-11-25 | 1984-10-17 | 川崎製鉄株式会社 | Control method of sintering operation |
-
1971
- 1971-10-18 BE BE774118A patent/BE774118A/en not_active IP Right Cessation
-
1972
- 1972-10-13 LU LU66291D patent/LU66291A1/xx unknown
- 1972-10-13 FR FR7236994A patent/FR2156811B1/fr not_active Expired
- 1972-10-18 NL NL7214076A patent/NL7214076A/xx not_active Application Discontinuation
- 1972-10-18 GB GB4808272A patent/GB1364148A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2156811B1 (en) | 1976-03-26 |
| LU66291A1 (en) | 1973-01-23 |
| NL7214076A (en) | 1973-04-24 |
| FR2156811A1 (en) | 1973-06-01 |
| BE774118A (en) | 1972-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |