FR2391167A1 - METHOD AND DEVICE FOR THE PURIFICATION OF COOLING WATER FROM METALLURGICAL AND STEEL PLANTS - Google Patents
METHOD AND DEVICE FOR THE PURIFICATION OF COOLING WATER FROM METALLURGICAL AND STEEL PLANTSInfo
- Publication number
- FR2391167A1 FR2391167A1 FR7813980A FR7813980A FR2391167A1 FR 2391167 A1 FR2391167 A1 FR 2391167A1 FR 7813980 A FR7813980 A FR 7813980A FR 7813980 A FR7813980 A FR 7813980A FR 2391167 A1 FR2391167 A1 FR 2391167A1
- Authority
- FR
- France
- Prior art keywords
- metallurgical
- water
- trap
- purification
- steel plants
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
- Fertilizers (AREA)
Abstract
Procédé pour l'épuration des eaux de circuits de refroidissement dans les usines métallurgiques et sidérurgiques. Selon l'invention ce procédé est caractérisé en ce que, pour l'élimination à grande échelle des matières flottantes, telles que l'huile, et pour la séparation renforcée des crasses avant l'épuration fine, le sens d'écoulement de l'eau de refroidissement est renversé une ou plusieurs fois à l'intérieur du piège à crasse, une partie des eaux préépurées étant prélevées du piège, mêlée à de Pair sous pression et ramenée à nouveau dans le circuit. des eaux résiduelles, en amont de l'introduction de celles-ci dans le piège, tandis que simultanément de l'air comprimé est introduit dans l'eau du piège. Application aux usines métallurgiques et sidérurgiques.Process for the purification of water from cooling circuits in metallurgical and iron and steel plants. According to the invention this process is characterized in that, for the large-scale removal of floating matter, such as oil, and for the enhanced separation of dross before fine purification, the direction of flow of the cooling water is spilled one or more times inside the dirt trap, part of the pre-purified water being taken from the trap, mixed with air under pressure and brought back into the circuit again. of residual water, upstream of its introduction into the trap, while simultaneously compressed air is introduced into the water of the trap. Application to metallurgical and iron and steel plants.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2722710A DE2722710C3 (en) | 1977-05-16 | 1977-05-16 | Method and device for cleaning the cooling water of smelting works and steel works |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2391167A1 true FR2391167A1 (en) | 1978-12-15 |
Family
ID=6009409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7813980A Withdrawn FR2391167A1 (en) | 1977-05-16 | 1978-05-11 | METHOD AND DEVICE FOR THE PURIFICATION OF COOLING WATER FROM METALLURGICAL AND STEEL PLANTS |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2722710C3 (en) |
| ES (1) | ES469117A1 (en) |
| FR (1) | FR2391167A1 (en) |
| GB (1) | GB1558316A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2507007C1 (en) * | 2012-08-16 | 2014-02-20 | Виктор Григорьевич Бабенко | Method of extraction of selected minerals from ore pulps by pressure flotation and device to this end |
| RU2732745C1 (en) * | 2020-02-25 | 2020-09-22 | Аскар Джамилевич Мингажев | Method of water purification from oil contaminants and metal compounds |
-
1977
- 1977-05-16 DE DE2722710A patent/DE2722710C3/en not_active Expired
-
1978
- 1978-04-25 ES ES469117A patent/ES469117A1/en not_active Expired
- 1978-05-04 GB GB17793/78A patent/GB1558316A/en not_active Expired
- 1978-05-11 FR FR7813980A patent/FR2391167A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| ES469117A1 (en) | 1979-01-16 |
| DE2722710C3 (en) | 1980-07-17 |
| DE2722710B2 (en) | 1979-11-08 |
| DE2722710A1 (en) | 1978-11-23 |
| GB1558316A (en) | 1979-12-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |