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 PLANTS

Info

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Withdrawn
Application number
FR7813980A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of FR2391167A1 publication Critical patent/FR2391167A1/en
Withdrawn legal-status Critical Current

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.

FR7813980A 1977-05-16 1978-05-11 METHOD AND DEVICE FOR THE PURIFICATION OF COOLING WATER FROM METALLURGICAL AND STEEL PLANTS Withdrawn FR2391167A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES469117A1 (en) 1979-01-16
DE2722710A1 (en) 1978-11-23
DE2722710C3 (en) 1980-07-17
GB1558316A (en) 1979-12-19
DE2722710B2 (en) 1979-11-08

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Legal Events

Date Code Title Description
ST Notification of lapse