WO1998001273A1 - Procede et dispositif pour produire des materiaux de construction etuves - Google Patents

Procede et dispositif pour produire des materiaux de construction etuves Download PDF

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Publication number
WO1998001273A1
WO1998001273A1 PCT/EP1997/002153 EP9702153W WO9801273A1 WO 1998001273 A1 WO1998001273 A1 WO 1998001273A1 EP 9702153 W EP9702153 W EP 9702153W WO 9801273 A1 WO9801273 A1 WO 9801273A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating chambers
aerated concrete
heating
autoclave
autoclaves
Prior art date
Application number
PCT/EP1997/002153
Other languages
German (de)
English (en)
Inventor
Dieter Hums
Guido Bailleul
Peter Bayer
Original Assignee
Ytong Aktiengesellschaft
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 Ytong Aktiengesellschaft filed Critical Ytong Aktiengesellschaft
Priority to AU27721/97A priority Critical patent/AU2772197A/en
Priority to EP97921783A priority patent/EP0918604B1/fr
Priority to PL97330955A priority patent/PL185199B1/pl
Priority to DE59710424T priority patent/DE59710424D1/de
Publication of WO1998001273A1 publication Critical patent/WO1998001273A1/fr

Links

Classifications

    • 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
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
    • 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
    • B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles

Definitions

  • the invention relates to a system and a method for producing steam-hardened building materials.
  • Steam-hardened building materials in particular steam-hardened lightweight building materials, for example porous or gas concrete, are produced using the following process.
  • the ground raw materials sand, lime, cement, sulfate carrier and aluminum powder are dosed in batches together with water in a mixer. After mixing, the material is poured into an oiled mold with a volume between 4 and 9 m 3 . After the casting mold has been filled, it is brought to a fermentation station, where the mass is fermented to its final volume and remains between one and six hours until the binder component has set enough green strength for the sawing. When the green strength is sufficient, the material is removed and then cut using wires in a sawing station.
  • the material After sawing, the material is either collected at further locations in front of the autoclave until an autoclave filling is available or directly into the autoclave. After autoclaving, the usual autoclaving time is approx. 12 hours, the material is removed from the autoclave, unloaded in an unloading device, packed and transported to the warehouse.
  • the cleaned and oiled molds are filled with an aerated concrete mixture and then moved to fermentation stations 2, where the mass floats and sets in the molds.
  • a Entfor ungsstation 3 the green firm aerated concrete cakes are tilted by 90 ° and part of the mold removed, while a mold side wall remains as a hard floor.
  • Another possibility provides for the transfer of the cellular concrete cakes to gratings, so that the entire shape is removed.
  • the cellular concrete cakes are then moved to a cutting station 4 and cut there into the desired formats.
  • the molds removed from the cellular concrete cakes are cleaned in a cleaning station 5 and then oiled in an oil station 6.
  • the aerated concrete cakes are moved out of the autoclaves 9 and are then available for post-treatment and / or packaging on a stand area 11. If the aerated concrete cakes are to be equipped with reinforcements, 12 reinforcements can be inserted into the molds in a reinforcement station before pouring.
  • a disadvantage here is that such systems require a considerable amount of space. A lot of space is required for the fermentation areas and for the dividing area in front of the autoclaves, although it is sometimes customary to install heat tunnels in the area of the fermentation areas in order to shorten the fermentation time and thus save space. If the autoclaves are fed individually and not in batches, the space requirement can also be reduced. However, expensive autoclave capacity is blocked for this.
  • Object of the invention is to provide a method and a system that reduces the economic capacity and the space requirements and increases clock speeds ⁇ in production.
  • the method according to the invention and a system according to the invention provide for additional heating of the cellular concrete cakes in one or more heating chambers, the heating step taking place between sawing the cellular concrete cakes and steam curing.
  • the aerated concrete cakes in the heating chambers are exposed to a temperature that is preferably ⁇ 100 ° C.
  • a temperature that is preferably ⁇ 100 ° C.
  • FIG. 2 shows an example of an embodiment of a system according to FIG. 1,
  • FIG. 3 shows, by way of example, a further embodiment of a system according to FIG. 2,
  • Fig. 4 shows a known system.
  • a system 1 (FIG. 1) for the production of steam-hardened building materials has functional sections 2, 3, 4, 5, 6, 7 which are arranged parallel to one another.
  • the functional sections 2 to 7 are aligned parallel to one another and have approximately the same length, the end regions of the functional sections 2 to 7 being at a height so that the base area of the system 1 is approximately rectangular, with two longitudinal outer sides L and two end outer sides S
  • the functional sections 2 to 7 extend here parallel to the longitudinal outer sides L of Appendix 1.
  • a transverse crane 9a, 9b can each be moved along a crane runway axis 10a, 10b over the end regions of the functional sections 2 to 7 along a crane runway 8a, 8b.
  • the crane runway axes 10a, 10b are oriented parallel to one another and to the outside face S and perpendicular to the functional sections 2 to 7.
  • the functional sections 2 to 7 each have a track 11a, 11b, 11c, lld, lle and llf with two rails each, the rails being dimensioned such that aerated concrete molds and autoclave wagons can be moved on them.
  • the functional section 2 has between the crane tracks 8a, 8b a cleaning station 15 for molds, a pouring buffer section 16, an oil station 17 for molds and in the area of the crane track 8b a casting station 18.
  • the functional section 3 has a hardness floor buffer section 19 between the crane tracks 8a, 8b, which takes hardness floors from an unloading station 20, which is located on a track 21, and which extends the track III of the functional section 3 beyond the crane track 8b.
  • a mold making area 24a in which molds and hard floors are put together.
  • the functional section 4 has a saw buffer section 22, a sawing station 23a and a stacking station 23b between the crane tracks 8a, 8b, a tilting area 24b being provided in the area of the crane track 8a for tilting and removing the molds from the hardened cellular concrete cake.
  • the functional section 5 has a preheating chamber 5a between the crane tracks 8a, 8b, the longitudinal axis 5b of which is arranged parallel to and between the rails to the track 11a.
  • the preheating chamber 5a has approximately a length which corresponds to the length of the functional section 5 between the crane tracks 8a, 8b.
  • the functional section 6 has a heating chamber 6a between the crane tracks 8a, 8b, the longitudinal axis 6b of which is arranged parallel to the track 11b between the rails of the track 11b.
  • the heating chamber 6a has approximately a length which corresponds to the length of the functional section 6 between the crane tracks 8a, 8b.
  • the functional section 7 has an autoclave 7a between the crane tracks 8a, 8b, the longitudinal axis 7b of which is arranged parallel to the track 11c between the rails.
  • the autoclave 7a has approximately a length which corresponds to the length of the functional section 7 between the crane tracks 8a, 8b.
  • the track 11c of the functional section 7 is extended beyond the crane runway 8b and forms an extension section 25 for hardened floors loaded with hardened aerated concrete products and carried out in batches from the autoclave.
  • FIG. 1 The method according to the invention is explained below (FIG. 1).
  • a cleaned mold standing on the pouring buffer section 16 is oiled in the oil station 17 and then filled in the pouring station 18.
  • the filled mold is lifted by means of the cross crane 9b, moved along a crane runway axis 10b and placed on the track 11a of the functional section 5 and moved into the heating chamber 5a.
  • the mold passes through the heat chamber 5a, in which it is preferably exposed to temperatures of 40 to 70 ° C., preferably in a time which is sufficient to complete the fermentation process and to achieve a green strength which is sufficient for cutting.
  • the mold leaves the heat chamber 5a the other side and arrives at the crane runway 8a, where it is moved with a transverse crane 9a along a crane runway axis 10a onto the track 11f of the functional section 4 and is moved there onto the saw buffer section 22.
  • the shape When moving, the shape is tilted in the tilting area 24 of the crane runway 8a and the functional section 4 and, after being set down, is removed from green-hard aerated concrete cake to the hard bottom.
  • the mold without a hardening base is moved to the mold construction area 24a of the functional section 3 and assembled there with an empty hardening base and from there to the cleaning station 15, these two steps also being able to take place in the reverse order.
  • the hardened floor with aerated concrete cake reaches the sawing station 23a, where the aerated concrete cake is cut into the desired formats.
  • a downstream station 23b three hardening trays with cellular concrete cakes are always placed on a hardening trolley.
  • the cut cellular concrete cake is moved into the area of the crane runway 8b and moved with the transverse crane 9b onto the track 11b of the functional section 6 and from there it is moved into the heating chamber 6a.
  • the heating chamber 6a the hardening carts are fed continuously until an autoclave batch is ready in the heating chamber, whereby the heating chamber 6a also takes over the function of a buffer or collecting section in front of the autoclave.
  • the cellular concrete cake is preferably exposed to a temperature ⁇ 100 ° C in the heating chamber.
  • the hardening car arrives in the area of the crane runway 8a, where it is placed by the cross crane 9a on the track 11c of the functional section 7 and from there it is moved into the autoclave.
  • the heating chamber 6a can, for example, be filled and emptied in batches, so that an autoclave batch is first completely heated, then it is moved out of the heating chamber 6a in batches en bloc and inserted into the autoclave 7a en bloc.
  • the hardening wagons are moved on the other side of the autoclave 7a to an extension section 25 of the functional section 7 in order to clear the autoclave 7a for new batches as quickly as possible.
  • the hardening wagons From the extension section 25, the hardening wagons reach the area of the crane runway 8b, from where they are moved with the transverse crane 9b onto the track lle of the functional section 3 and driven into the unloading station 20.
  • the aerated concrete cakes are unloaded from the hardening wagons and the hardening floors and the hardening wagons are pushed into the hardening floor magazine 19, where the hardening floors are collected and preferably stacked.
  • the hardening wagons are then suitably moved or transported to a transfer station.
  • the hardening wagons are pushed from the tracks onto the transfer platforms.
  • the transfer platforms move the hardening car along the crane / transfer platform axes 10a, 10b to the desired track, where the curing car is pushed from the transfer table onto the track.
  • the basic procedure is the same.
  • FIG. 2 Another embodiment (FIG. 2) of a system for carrying out the method according to the invention has two heating chambers 5a before cutting, which are passed through by a mold one after the other. After the molds have been heated in a heating chamber 6a, two autoclaves 7a can optionally be charged. Due to the fact that the tracks are arranged parallel to each other, at the same length and at the same height, a compact design of the system is also achieved here. It is not necessary to move the molds between the casting station 18 and a first heating chamber 5a, since the casting station 18 is located on an extension of the track of the heating chamber.
  • FIG. 3 A further possible embodiment of a system for carrying out the method according to the invention (FIG. 3) has a long autoclave 7a instead of two short ones, which is indeed via Crane runway 8b extends, but the end of which is at the level of the casting station 18, so that a compact design is nevertheless achieved.
  • the entire installation is erected on flat foundation plates and the heating chamber is arranged above the heating chamber. If the sawing station is also at the level of the heating chamber, this results in a particularly advantageous design of the system with a small footprint. In addition, with such a system, no expensive foundation pits for e.g. Sludge collection container.
  • the above-described cross cranes also serve here as transfer devices for transferring the hardening wagons from the lower level to the upper level on which the saw and the heating chamber are arranged.
  • the residence times of the cellular concrete cakes in the autoclave can advantageously be reduced from approximately 12 hours to approximately 8 hours.
  • an autoclave can now be filled three times a day instead of twice as before, which can help to reduce the cycle times and increase the cycle rates in production or to reduce the number of autoclaves.
  • the proofing and setting times can be shortened and adapted to the higher cycle rates.
  • the number of shapes can be kept low.
  • the design and arrangement of the functional paths according to the invention and the possible reduction in the number of autoclaves permits a compact construction of the system, thereby saving space.
  • the high cycle rates and high throughput of the overall cost-effective system allow the system to be operated economically and efficiently with an autoclave at 70,000 to 80,000 m 3 / year.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne un procédé permettant de produire des matériaux de construction légers, notamment du béton cellulaire autoclavé ou du béton poreux et une installation permettant de mettre ledit procédé en oeuvre. Selon ce procédé, les gâteaux de béton poreux sont soumis à un traitement thermique supplémentaire après découpage et avant étuvage, ce qui permet de réduire les temps de séjour des gâteaux de béton poreux dans les autoclaves et d'augmenter les cycles de production, de sorte à pouvoir parvenir à une structure compacte de l'installation. Selon l'invention, dans l'installation appropriée, il est prévu un chauffage supplémentaire des gâteaux de béton poreux dans une ou plusieurs chambres de chauffage (6a). Les sections fonctionnelles sont alignées de manière mutuellement parallèle avec les autoclaves (7a), les chambres de chauffage (6a) et les chambres de préchauffage (5a), ainsi que les stations où les gâteaux de béton poreux sont traités. Des dispositifs de déplacement situés au niveau des deux zones terminales déplacent les moules d'une section à toute autre section.
PCT/EP1997/002153 1996-07-04 1997-04-25 Procede et dispositif pour produire des materiaux de construction etuves WO1998001273A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU27721/97A AU2772197A (en) 1996-07-04 1997-04-25 Method and arrangement for producing vapour-hardened building materials
EP97921783A EP0918604B1 (fr) 1996-07-04 1997-04-25 Dispositif pour produire des materiaux de construction etuves
PL97330955A PL185199B1 (pl) 1996-07-04 1997-04-25 Instalacja do wytwarzania lekkich materiałów budowlanych, w szczególności gazobetonu lub betonu komórkowego
DE59710424T DE59710424D1 (de) 1996-07-04 1997-04-25 Anlage zum herstellen von dampfgehärteten baustoffen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19627019.7 1996-07-04
DE19627019A DE19627019B4 (de) 1996-07-04 1996-07-04 Verfahren und Anlage zum Herstellen von dampfgehärteten Baustoffen

Publications (1)

Publication Number Publication Date
WO1998001273A1 true WO1998001273A1 (fr) 1998-01-15

Family

ID=7798957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/002153 WO1998001273A1 (fr) 1996-07-04 1997-04-25 Procede et dispositif pour produire des materiaux de construction etuves

Country Status (6)

Country Link
EP (2) EP1295691B1 (fr)
AU (1) AU2772197A (fr)
CZ (2) CZ300675B6 (fr)
DE (3) DE19627019B4 (fr)
PL (1) PL185199B1 (fr)
WO (1) WO1998001273A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0927615A2 (fr) * 1998-01-05 1999-07-07 Ytong Ag Installation pour l'obtention de matériaux de construction durcis à la vapeur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350731A (zh) * 2011-09-30 2012-02-15 芜湖新铭丰机械装备有限公司 一种蒸养釜工艺布置结构
FI125340B (en) * 2014-05-05 2015-08-31 Elematic Oy Ab Method and equipment for casting concrete products

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE556531A (fr) *
CH281682A (de) * 1949-07-11 1952-03-31 Messerschmitt Willy Ing Dr Anlage für die Herstellung von Betonplatten, insbesondere von Leichtbetonplatten.
FR1360763A (fr) * 1963-03-28 1964-05-15 Procédé de fabrication en autoclave d'éléments de construction traités de grande dimension en silicate gazeux, ou béton-gaz et installation pour exécution de ce procédé
DE3015245A1 (de) * 1980-04-21 1981-10-22 Pfister Gmbh, 8900 Augsburg Verfahren zur herstellung von form- und/oder bauteilen aus leichtbeton sowie daraus hergestellte form- und/oder bauteile, insbesondere zur verwendung als isolierungs- und/oder brandschutzelemente

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT72072B (de) * 1912-03-18 1916-07-10 Alois Peter Bock Verfahren und Betriebsanlage zur Fertigstellung von Kunststeinerzeugnissen durch kombinierte Erhärtung.
GB2085425B (en) * 1980-10-09 1984-02-01 Tselinogradsky Inzhenernostroi Heat and moisture treatment for building articles
SE461203B (sv) * 1983-01-24 1990-01-22 Svanholm Engineering Ab G Foerfarande och anlaeggning foer framstaellning av element av gasbetong
DE4135119A1 (de) * 1991-10-24 1993-05-19 Hebel Ag Verfahren zum autoklavieren von poroesem, stueckigem gut, insbesondere formkoerper aus porenbeton.
DE4316307A1 (de) * 1993-05-14 1994-11-17 Ytong Ag Verfahren zur Herstellung von dampfgehärteten Bauteilen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE556531A (fr) *
CH281682A (de) * 1949-07-11 1952-03-31 Messerschmitt Willy Ing Dr Anlage für die Herstellung von Betonplatten, insbesondere von Leichtbetonplatten.
FR1360763A (fr) * 1963-03-28 1964-05-15 Procédé de fabrication en autoclave d'éléments de construction traités de grande dimension en silicate gazeux, ou béton-gaz et installation pour exécution de ce procédé
DE3015245A1 (de) * 1980-04-21 1981-10-22 Pfister Gmbh, 8900 Augsburg Verfahren zur herstellung von form- und/oder bauteilen aus leichtbeton sowie daraus hergestellte form- und/oder bauteile, insbesondere zur verwendung als isolierungs- und/oder brandschutzelemente

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0927615A2 (fr) * 1998-01-05 1999-07-07 Ytong Ag Installation pour l'obtention de matériaux de construction durcis à la vapeur
EP0927615A3 (fr) * 1998-01-05 2000-05-17 Ytong Ag Installation pour l'obtention de matériaux de construction durcis à la vapeur

Also Published As

Publication number Publication date
PL330955A1 (en) 1999-06-21
DE59711522D1 (de) 2004-05-19
DE59710424D1 (de) 2003-08-14
EP0918604A1 (fr) 1999-06-02
DE19627019B4 (de) 2008-01-31
DE19627019A1 (de) 1998-01-08
EP1295691A2 (fr) 2003-03-26
EP0918604B1 (fr) 2003-07-09
EP1295691A3 (fr) 2003-04-02
PL185199B1 (pl) 2003-03-31
CZ294145B6 (cs) 2004-10-13
CZ9804335A3 (cs) 2000-11-15
EP1295691B1 (fr) 2004-04-14
AU2772197A (en) 1998-02-02
CZ300675B6 (cs) 2009-07-15

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