FR2283763A1 - Plaster panels mfr. - by spreading dry materials onto a conveyor belt fitted with water jets, filter and vacuum-suction - Google Patents

Plaster panels mfr. - by spreading dry materials onto a conveyor belt fitted with water jets, filter and vacuum-suction

Info

Publication number
FR2283763A1
FR2283763A1 FR7527342A FR7527342A FR2283763A1 FR 2283763 A1 FR2283763 A1 FR 2283763A1 FR 7527342 A FR7527342 A FR 7527342A FR 7527342 A FR7527342 A FR 7527342A FR 2283763 A1 FR2283763 A1 FR 2283763A1
Authority
FR
France
Prior art keywords
plaster
water
conveyor belt
mfr
suction
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Withdrawn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
FR7527342A
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.)
BOJSEN MOLLER PAPER TRADING CO
Original Assignee
BOJSEN MOLLER PAPER TRADING CO
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
Priority claimed from AT921764A external-priority patent/AT268967B/en
Priority claimed from DK469674A external-priority patent/DK469674A/da
Application filed by BOJSEN MOLLER PAPER TRADING CO filed Critical BOJSEN MOLLER PAPER TRADING CO
Publication of FR2283763A1 publication Critical patent/FR2283763A1/en
Withdrawn legal-status Critical Current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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • 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
    • B28B1/521—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement from dry mixtures to which a setting agent is applied after forming
    • 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
    • B28B1/526—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement by delivering the materials on a conveyor of the endless-belt type
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/021—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length
    • B28B5/022—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length the moulds or the moulding surfaces being individual independant units and being discontinuously fed
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying
    • B28B7/465—Applying setting liquid to dry mixtures
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Nonwoven Fabrics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Producing Shaped Articles From Materials (AREA)

Abstract

Process for mfg. plaster panels, where the surface of a conveyor belt is fed with plaster, fibres or other fillers, or a mixt. of these materials, in one or more superimposed layers, plus water for setting. When the plaster is spread out its temp. is 1-140 degrees C and the layer(s) are dry, i.e. only the residual water of crystallisation in the plaster is present; the layer(s) are shaped and/or compressed, and water is then added across the entire width for setting; and a pressure difference is established between the surfaces of the panel to ensure the distribution of the water and to remove the excess. The plaster is pref. at 10-100 degrees C and the panel 5-100mm thick; the pref. appts. is included in twenty claims. Avoids the use of large amts. of energy involved in removing excess water, or the use of refrigeration so the water can be added as ice, i.e. this process is very economic.
FR7527342A 1964-10-30 1975-09-05 Plaster panels mfr. - by spreading dry materials onto a conveyor belt fitted with water jets, filter and vacuum-suction Withdrawn FR2283763A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT921764A AT268967B (en) 1964-10-30 1964-10-30 Method and device for the production of molded articles, e.g. Plates or the like. Made of plaster
DK469674A DK469674A (en) 1974-09-05 1974-09-05

Publications (1)

Publication Number Publication Date
FR2283763A1 true FR2283763A1 (en) 1976-04-02

Family

ID=25605370

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7527342A Withdrawn FR2283763A1 (en) 1964-10-30 1975-09-05 Plaster panels mfr. - by spreading dry materials onto a conveyor belt fitted with water jets, filter and vacuum-suction

Country Status (9)

Country Link
BE (2) BE671648A (en)
CH (1) CH458176A (en)
DE (2) DE1571466A1 (en)
FI (1) FI752425A (en)
FR (1) FR2283763A1 (en)
LU (2) LU49746A1 (en)
NL (2) NL6514094A (en)
NO (1) NO753036L (en)
SE (1) SE7509242L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309709A1 (en) * 1987-09-11 1989-04-05 BABCOCK-BSH AKTIENGESELLSCHAFT vormals Büttner-Schilde-Haas AG Process for the production of gypsum fibre board

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436759A1 (en) * 1978-09-25 1980-04-18 Espi Brevets Participations Sa Forming plaster board or similar material - by applying successive layers of dry binder, spraying with liquid, preforming and compacting
DE2900613C2 (en) * 1979-01-09 1988-01-21 Mitsubishi Mining & Cement Co. Ltd., Tokyo Process for the production of a fiber-reinforced, hardened plaster molding
DE2919311B1 (en) * 1979-05-14 1980-09-18 Gert Prof Dr-Ing Habil Kossatz Process for the production of gypsum components, in particular gypsum boards
DE3242598A1 (en) * 1982-11-18 1984-05-24 Gipsconsult Management und Beratungs AG, 8036 Zürich Method of producing shaped bodies, particularly plates, with the use of binders containing calcium sulphate
DE3247009A1 (en) * 1982-12-18 1984-06-20 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Process for continuously producing plaster-bound panels, and device for carrying out the process
DE3429682A1 (en) * 1984-08-11 1986-02-20 Rigips GmbH, 3452 Bodenwerder Lightweight building material using calcium sulphate hemihydrate as binder
DE3608581A1 (en) * 1986-03-14 1987-09-17 Rigips Gmbh COMPONENTS, ESPECIALLY PLASTER PLATES
DE3683375D1 (en) * 1986-09-19 1992-02-20 Kronospan Anstalt METHOD FOR PRODUCING FIBER-CONTAINING COMPONENTS LIKE PLATES, MOLDED PARTS OR THE LIKE.
DE3708875C3 (en) * 1987-03-18 2001-09-06 Kvaerner Panel Sys Gmbh Process for the production of moldings, in particular plates
DE4239033A1 (en) * 1992-03-19 1993-09-23 Fraunhofer Ges Forschung
NO3013768T3 (en) * 2013-06-26 2018-02-17
DE102015014967A1 (en) * 2015-11-20 2017-05-24 Saint-Gobain Rigips Gmbh Process for producing a hydrophobized gypsum fiber board
CN112497472A (en) * 2020-12-04 2021-03-16 苏州娄城新材料科技有限公司 Production method of fly ash brick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309709A1 (en) * 1987-09-11 1989-04-05 BABCOCK-BSH AKTIENGESELLSCHAFT vormals Büttner-Schilde-Haas AG Process for the production of gypsum fibre board

Also Published As

Publication number Publication date
CH458176A (en) 1968-06-15
FI752425A (en) 1976-03-06
DE2538736A1 (en) 1976-03-18
BE671648A (en) 1966-02-14
NL7510533A (en) 1976-03-09
LU73321A1 (en) 1976-04-13
BE833007A (en) 1975-12-31
NO753036L (en) 1976-03-08
SE7509242L (en) 1976-03-08
LU49746A1 (en) 1966-03-01
DE1571466A1 (en) 1970-12-17
NL6514094A (en) 1966-05-02

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Legal Events

Date Code Title Description
ST Notification of lapse