ES479182A1 - Un sistema para recicular una suspension que contiene soli- dos de fibrocemento y un metodo correspondiente. - Google Patents

Un sistema para recicular una suspension que contiene soli- dos de fibrocemento y un metodo correspondiente.

Info

Publication number
ES479182A1
ES479182A1 ES479182A ES479182A ES479182A1 ES 479182 A1 ES479182 A1 ES 479182A1 ES 479182 A ES479182 A ES 479182A ES 479182 A ES479182 A ES 479182A ES 479182 A1 ES479182 A1 ES 479182A1
Authority
ES
Spain
Prior art keywords
slurry
tank
asbestos
cement
machine
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
Application number
ES479182A
Other languages
English (en)
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.)
Johns Manville Corp
Johns Manville
Original Assignee
Johns Manville Corp
Johns Manville
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 Johns Manville Corp, Johns Manville filed Critical Johns Manville Corp
Publication of ES479182A1 publication Critical patent/ES479182A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/302—Active control mechanisms with external energy, e.g. with solenoid valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/305—Control of chemical properties of a component, e.g. control of pH
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/02—Conditioning the material prior to shaping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Un Sistema para re circular una suspensión que contiene sólidos de fibrocemento al menos a una máquina de fabricación de producto de amianto-cemento, derivados de los efluentes generados por al menos una máquina de fabricación de producto de amianto-cemento en una instalación de producción, siendo generados dichos efluentes durante la operación normal así como durante la parada y limpieza de dicha al menos una máquina, estando caracterizado dicho sistema por: un depósito de sedimentación de efluente funcionalmente conectado a dicha al menos una máquina , un sistema de retorno de agua clara para hacer regresar agua clara desde dicho depósito de sedimentación a dicha instalación de producción un depósito de lechada, medios funcionalmente conectados al depósito de lechada, medios funcionalmente conectados al depósito de lechada medios funcionalmente conectados al depósito de sedimentación y a dicho depósito de lechada, para proporcionar selectivamente a dicho depósito de lechada una lechada deamianto-cemento desde dicho depósito de sedimentación, teniendo dicha lechada una concentración de sólidos de amianto-cemento por encima de una concentración predeterminada, medios asociados con dicho depósito de lechada para mantener una concentración de dichos sólidos en dicho depósito de lechada en una magnitud igual o menor que dicha concentración predeterminada y medios para proporcionar selectivamente a dicha al menos una máquina un flujo controlado de la lechada desde dicho depósito de la lechada.
ES479182A 1978-04-04 1979-04-02 Un sistema para recicular una suspension que contiene soli- dos de fibrocemento y un metodo correspondiente. Expired ES479182A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/893,218 US4221633A (en) 1978-04-04 1978-04-04 Method and apparatus for controllably recycling the solids content of the effluent from an asbestos-cement products forming plant

Publications (1)

Publication Number Publication Date
ES479182A1 true ES479182A1 (es) 1980-01-16

Family

ID=25401219

Family Applications (1)

Application Number Title Priority Date Filing Date
ES479182A Expired ES479182A1 (es) 1978-04-04 1979-04-02 Un sistema para recicular una suspension que contiene soli- dos de fibrocemento y un metodo correspondiente.

Country Status (12)

Country Link
US (1) US4221633A (es)
JP (1) JPS54134734A (es)
AU (1) AU4547379A (es)
BE (1) BE875263A (es)
CA (1) CA1103969A (es)
DE (1) DE2912942A1 (es)
ES (1) ES479182A1 (es)
FI (1) FI791108A7 (es)
FR (1) FR2421717A1 (es)
GB (1) GB2018235B (es)
GR (1) GR68482B (es)
IT (1) IT1116535B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399308B (de) * 1993-04-29 1995-04-25 Eternit Werke Hatschek L Verfahren und anlagen zur herstellung von aus fasern und hydraulischem bindemittel bestehenden produkten
GB9901216D0 (en) 1999-01-21 1999-03-10 Ciba Spec Chem Water Treat Ltd Sludge density measurement
ES2180378B1 (es) * 2000-05-29 2004-03-16 Maquelri S L Procedimiento para la fabricacion de aglomerados de cemento
GB2375072A (en) 2001-05-05 2002-11-06 Psi Global Ltd Method and apparatus for making moulded filter elements
US6856086B2 (en) * 2001-06-25 2005-02-15 Avery Dennison Corporation Hybrid display device
US7494586B2 (en) * 2004-10-27 2009-02-24 Concrete Washout Systems, Inc. Treatment system for liquid concrete washout waste
CN103406345A (zh) * 2013-08-29 2013-11-27 平湖南方混凝土制品有限公司 混凝土搅拌站废水废渣综合利用工艺
US9975784B2 (en) * 2014-12-29 2018-05-22 ClearCove Systems, Inc. System for controlling waste water treatment in a waste water treatment plant
FR3093932B1 (fr) * 2019-03-21 2021-08-20 Michel Charpentier Bac de decantation pour le traitement d’eau chargee de matiere en suspension

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053496A (es) * 1900-01-01
US1872480A (en) * 1931-07-17 1932-08-16 Dorr Co Inc Making cement-asbestos products
US4096028A (en) * 1976-11-26 1978-06-20 Nalco Chemical Company Feed forward control of dissolved solids in a countercurrent separation and washing zone
US4092338A (en) * 1977-01-27 1978-05-30 De Fro Tossey Sludge distribution network

Also Published As

Publication number Publication date
FR2421717A1 (fr) 1979-11-02
IT1116535B (it) 1986-02-10
CA1103969A (en) 1981-06-30
JPS54134734A (en) 1979-10-19
US4221633A (en) 1980-09-09
GB2018235A (en) 1979-10-17
GR68482B (es) 1982-01-04
IT7948572A0 (it) 1979-04-02
BE875263A (fr) 1979-10-02
GB2018235B (en) 1982-09-02
AU4547379A (en) 1979-10-18
FI791108A7 (fi) 1981-01-01
DE2912942A1 (de) 1979-10-18

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