EP0286844A1 - Procédé et installation de préparation de briquettes chaudes sans liant - Google Patents
Procédé et installation de préparation de briquettes chaudes sans liant Download PDFInfo
- Publication number
- EP0286844A1 EP0286844A1 EP88103979A EP88103979A EP0286844A1 EP 0286844 A1 EP0286844 A1 EP 0286844A1 EP 88103979 A EP88103979 A EP 88103979A EP 88103979 A EP88103979 A EP 88103979A EP 0286844 A1 EP0286844 A1 EP 0286844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- hot
- residues
- fluidized bed
- mixture
- 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.)
- Granted
Links
Images
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
-
- 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
- C22B1/24—Binding; Briquetting ; Granulating
-
- 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
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
- C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
Definitions
- residues are finely divided dusts, sludges, granules and other substances that contain iron oxides or other metal oxides, such as blast furnace filter dust, oxygen converter filter dust, filter dust from the hall dedusting of steelworks, electric furnace filter dust, steelworks filter sludge, etc. reintroduce into the production process to recover the valuable components contained in the residues; in many cases, however, this is associated with great difficulty or not possible at all because of the nature of the residues, in particular because of the fine particle size. In this case, there is often only the possibility to deposit the residues, which creates environmental protection problems.
- the invention has for its object to avoid the disadvantages described and to propose a method and an associated system with which residues, which essentially do not contain any combustible components, can be processed into binderless hot briquettes.
- a finely divided fuel is mixed with the finely divided residues.
- This cold mixture is then supplied with sensible heat from the outside until the fuel ignites. Because of the relatively low temperature level, this heat supply can be carried out economically.
- the difficult to set high hot briquetting temperatures of 600 to 900 ° C, however, are achieved by the heat generated when the mixed fuel burns; Since the heat of combustion can be transferred directly to the fine-particle residue without major losses, this process step can be carried out economically.
- the method according to claim 2 is advantageously carried out in a fluidized bed / fluidized bed and according to claim 4 in a rotary tube.
- the fuels used advantageously according to claim 6, such as lignite high-temperature coke, lignite coke, hard coal coke and lignite or hard coal should have a low ignition temperature (250 to 450 ° C) to the amount of the outside keep sensible heat supplied as low as possible until the fuel ignites.
- the amount of fuel added also depends on the calorific value of the fuel and is dependent on the properties of the respective residue, e.g. Water content and specific heat capacity, depending.
- the mixture of finely divided residue and fuel is additionally supplied with heat which can be felt from the outside, even after the onset of combustion of the fuel, in order to accelerate the briquetting temperature of 600 to 900 ° C.
- the residues to be briquetted are stored in silos 2.
- the finely divided residue is conveyed to a mixer 4 via a discharge device 3.
- Finely divided fuel is added from a silo 1 via a metering 5 and mixed in the mixer 4 with the finely divided residue.
- the mixture of fuel and finely divided residue is supplied with heat which can be felt from the outside by a hot oxidizing gas stream 7, which also serves as a fluidizing gas stream.
- the hot oxidizing gas stream 7 is turned off in a combustion chamber 8 Fuel gas 9 and air 10 are generated.
- the finely divided residue After reaching the ignition temperature of the fuel, it reacts with the oxidizing gas stream; As a result of the heat of combustion generated, the finely divided residue is heated up during its migration over the fluidized bed and has hot briquetting temperature at the end of the fluidized bed.
- the heated residue 12 is then fed directly to a briquetting press 13 and pressed into hot briquettes.
- the hot briquettes On a downstream cooling belt 14, the hot briquettes are cooled to ambient temperature by ambient air 15 with the aid of a fan 16.
- the exhaust air generated above the fluidized bed is fed to a dedusting device, not shown, via a blower 11.
- a rotary tube 6a is arranged in place of the fluidized bed 6, into which the hot oxidizing gas stream 7 is introduced.
- the filter dust of Example 1 comes from the filter system of a stainless steel plant with an electric furnace and AOD converter, the coarse sludge from Example 2 was separated in the filter system of an oxygen steel plant with wet dedusting, and the steel plant dust from Example 3 comes from the room dust removal of an oxygen steel plant.
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)
- Solid Fuels And Fuel-Associated Substances (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88103979T ATE69270T1 (de) | 1987-04-02 | 1988-03-14 | Verfahren und anlage zur herstellung von bindemittellosen heissbriketts. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3711130 | 1987-04-02 | ||
DE3711130A DE3711130C1 (de) | 1987-04-02 | 1987-04-02 | Verfahren und Anlage zur Herstellung von bindemittellosen Heissbriketts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0286844A1 true EP0286844A1 (fr) | 1988-10-19 |
EP0286844B1 EP0286844B1 (fr) | 1991-11-06 |
Family
ID=6324722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88103979A Expired - Lifetime EP0286844B1 (fr) | 1987-04-02 | 1988-03-14 | Procédé et installation de préparation de briquettes chaudes sans liant |
Country Status (7)
Country | Link |
---|---|
US (1) | US4872906A (fr) |
EP (1) | EP0286844B1 (fr) |
JP (1) | JPS63262427A (fr) |
KR (1) | KR880012779A (fr) |
AT (1) | ATE69270T1 (fr) |
DE (2) | DE3711130C1 (fr) |
ES (1) | ES2027717T3 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5104446A (en) * | 1989-09-29 | 1992-04-14 | Iron Tiger Investment Inc. | Agglomeration process |
BE1010700A5 (nl) † | 1996-10-17 | 1998-12-01 | Trading And Recycling Company | Werkwijze voor het verwerken van roestvaste staalslakken. |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009397B (de) * | 1953-04-23 | 1957-05-29 | F J Collin Ag Zur Verwertung V | Verfahren zur Verhuettung von Feinerzen oder Metalloxyden |
US3174846A (en) * | 1963-04-10 | 1965-03-23 | United States Steel Corp | Method of briquetting iron oxide fines |
GB1096315A (en) * | 1964-03-20 | 1967-12-29 | Coal Industry Patents Ltd | Briquettes composed of inorganic compounds and carbonaceous material |
GB1181874A (en) * | 1966-05-17 | 1970-02-18 | Boliden Ab | A method of Converting a Finely-Grained Material to a more Coarsely-Grained Material |
US3941582A (en) * | 1969-06-12 | 1976-03-02 | Baum Jesse J | Direct reduced iron |
LU70523A1 (fr) * | 1974-07-12 | 1976-05-31 | ||
US4123209A (en) * | 1977-04-18 | 1978-10-31 | Moore James E | Briquetting plant |
EP0012363A1 (fr) * | 1978-12-07 | 1980-06-25 | Krupp Polysius Ag | Procédé et dispositif pour la réduction de minerais |
EP0097292A2 (fr) * | 1982-06-22 | 1984-01-04 | Thyssen Aktiengesellschaft vorm. August Thyssen-Hütte | Procédé et installation de fabrication à chaud de briquettes sans liant |
DE3440037A1 (de) * | 1983-12-06 | 1985-06-13 | Laborlux S.A., Esch, Alzette | Verfahren zur heissbrikettierung feinkoerniger stoffe und zur weiterverarbeitung der heissbriketts |
DE3529084C1 (de) * | 1985-08-14 | 1986-10-16 | Thyssen Stahl AG, 4100 Duisburg | Verfahren und Anlage zur Herstellung bindemittelloser Heissbriketts |
EP0217139A1 (fr) * | 1985-09-09 | 1987-04-08 | LABORLUX S.A. Société Luxembourgeoise de Laboratoires d'Analyses, d'Etudes et d'Essais de Matériaux | Procédé pour traiter des matières résiduelles de l'industrie de l'acier contenant du zinc et du plomb en vue d'un traitement ultérieur métallurgique |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3870507A (en) * | 1973-05-14 | 1975-03-11 | Ferro Carb Agglomeration | Control of pollution by recycling solid particulate steel mill wastes |
-
1987
- 1987-04-02 DE DE3711130A patent/DE3711130C1/de not_active Expired
-
1988
- 1988-03-14 ES ES198888103979T patent/ES2027717T3/es not_active Expired - Lifetime
- 1988-03-14 AT AT88103979T patent/ATE69270T1/de not_active IP Right Cessation
- 1988-03-14 EP EP88103979A patent/EP0286844B1/fr not_active Expired - Lifetime
- 1988-03-14 DE DE8888103979T patent/DE3865999D1/de not_active Expired - Fee Related
- 1988-03-16 US US07/168,708 patent/US4872906A/en not_active Expired - Fee Related
- 1988-03-31 JP JP63076633A patent/JPS63262427A/ja active Pending
- 1988-04-02 KR KR1019880003740A patent/KR880012779A/ko not_active Application Discontinuation
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009397B (de) * | 1953-04-23 | 1957-05-29 | F J Collin Ag Zur Verwertung V | Verfahren zur Verhuettung von Feinerzen oder Metalloxyden |
US3174846A (en) * | 1963-04-10 | 1965-03-23 | United States Steel Corp | Method of briquetting iron oxide fines |
GB1096315A (en) * | 1964-03-20 | 1967-12-29 | Coal Industry Patents Ltd | Briquettes composed of inorganic compounds and carbonaceous material |
GB1181874A (en) * | 1966-05-17 | 1970-02-18 | Boliden Ab | A method of Converting a Finely-Grained Material to a more Coarsely-Grained Material |
US3941582A (en) * | 1969-06-12 | 1976-03-02 | Baum Jesse J | Direct reduced iron |
LU70523A1 (fr) * | 1974-07-12 | 1976-05-31 | ||
US4123209A (en) * | 1977-04-18 | 1978-10-31 | Moore James E | Briquetting plant |
EP0012363A1 (fr) * | 1978-12-07 | 1980-06-25 | Krupp Polysius Ag | Procédé et dispositif pour la réduction de minerais |
EP0097292A2 (fr) * | 1982-06-22 | 1984-01-04 | Thyssen Aktiengesellschaft vorm. August Thyssen-Hütte | Procédé et installation de fabrication à chaud de briquettes sans liant |
DE3440037A1 (de) * | 1983-12-06 | 1985-06-13 | Laborlux S.A., Esch, Alzette | Verfahren zur heissbrikettierung feinkoerniger stoffe und zur weiterverarbeitung der heissbriketts |
DE3529084C1 (de) * | 1985-08-14 | 1986-10-16 | Thyssen Stahl AG, 4100 Duisburg | Verfahren und Anlage zur Herstellung bindemittelloser Heissbriketts |
EP0217139A1 (fr) * | 1985-09-09 | 1987-04-08 | LABORLUX S.A. Société Luxembourgeoise de Laboratoires d'Analyses, d'Etudes et d'Essais de Matériaux | Procédé pour traiter des matières résiduelles de l'industrie de l'acier contenant du zinc et du plomb en vue d'un traitement ultérieur métallurgique |
Also Published As
Publication number | Publication date |
---|---|
US4872906A (en) | 1989-10-10 |
EP0286844B1 (fr) | 1991-11-06 |
DE3865999D1 (de) | 1991-12-12 |
KR880012779A (ko) | 1988-11-29 |
DE3711130C1 (de) | 1988-07-21 |
ATE69270T1 (de) | 1991-11-15 |
JPS63262427A (ja) | 1988-10-28 |
ES2027717T3 (es) | 1992-06-16 |
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