EP1053845B1 - Plant for making concrete - Google Patents

Abstract

The concrete preparation plant has a bunker and weighing unit(1) and a conveyor, weighing and mixing unit (2). Between the t units is a transfer chamber(3), so that the complete preparation plant is heatable. The outer walls are provided with a heat and sound insulation. The two units are formed as saddle locators. the transfer chamber is formed by face sides of both units, outwardly and inwa foldable wall parts(7,8,12,14) and a door(4).

Description

The invention relates to a concrete production plant which is protected from the weather by external walls with a bunker and weighing unit, and with a feed, weighing and mixing unit.

For larger construction sites in particular, it makes more sense to use aggregates and cement Deliver dry and separately, as finished concrete with mixing vehicles over a wide area To transport distances. Therefore there are concrete manufacturing plants for the production of the concrete at the place of use generally from the two input units mentioned, which are still at the manufacturing site by cement silos, water connections or tanks, etc. can be added.

For easy transportation of the concrete manufacturing plant to the place of use it is necessary that the units do not exceed common transport widths, and a number of proposals have already become known, for example from EP-A 4695, 468 827, 509 881 and 807 502.

In addition, DE-A 31 15 812 describes a system of the aforementioned Type in which the units are used as weatherproof, closed containers for road, rail or ship transport are trained.

All of the concrete production plants mentioned can only be operated depending on the temperature become, i.e. at outside temperatures well below zero, generally no Concrete can be made.

The invention has now set itself the task of solving this problem, and connects the two weather-protected units through a closed transfer room, so that the entire concrete production plant can be heated.

In a preferred embodiment it is further provided that the outer walls with a Thermal and / or sound insulation are provided.

For easier transportation, the two units are preferably with a chassis and extendable support legs, and especially as a semi-trailer educated.

The closed units must operate on each other anyway directed end faces are opened, on which the transfer of the weighed Aggregates to a conveyor leading to the mixer. It is therefore Particularly advantageous when training as a semi-trailer if the transfer space is out the front of both units has fold-out or fold-out wall parts and a door.

In order to produce the largest possible batches with high quality and short mixing times To be able to mix in one operation, the mixers have maximum diameters that are determined by the transport width. Longitudinal sidewalks for care and maintenance of the feed, weighing and mixing unit of the mixer are closed units to be heated can still be executed if they come from the long sides the feed, weighing and mixing unit can be folded out laterally and covered.

The invention will now be described with reference to the figures in the accompanying drawing described in more detail without being limited thereto.

Fig. 1

eine schematische Darstellung der vor Ort aufgestellten Betonfertigungsanlage,

Fig. 2

eine schematische Darstellung der beiden Einheiten in Transportstellung,

Fig. 3

den Übergabebereich zwischen den beiden aufgestellten Einheiten gemäß Fig. 1,

Fig. 4

die Hinteransicht der Bunker- und Wiegeeinheit,

Fig. 5

die Seitenansicht der Bunker- und Wiegeeinheit, jeweils in geschlossenem Zustand,

Fig. 6

die Hinteransicht der Zuförder- und Mischeinheit in geschlossenem Zustand, und

Fig. 7

einen Querschnitt durch die Zuförder- und Mischeinheit im Bereich des Mischers.

Show it:

Fig. 1

a schematic representation of the on-site concrete production plant,

Fig. 2

a schematic representation of the two units in the transport position,

Fig. 3

the transfer area between the two installed units according to FIG. 1,

Fig. 4

the rear view of the bunker and weighing unit,

Fig. 5

the side view of the bunker and weighing unit, each in the closed state,

Fig. 6

the rear view of the feed and mixing unit in the closed state, and

Fig. 7

a cross section through the feed and mixing unit in the area of the mixer.

A concrete production plant has two weatherproof, closed by external walls Units 1, 2, each as a semi-trailer for transport according to FIG. 2 are trained. At the place of use, the two units 1, 2 with their rear end faces 6, 11 set up against each other, as shown in FIG. 1. One of the two Units serves as a bunker and weighing unit 1 and contains feed bunkers for various Fractions of aggregates and a weighing belt for the aggregates, via which the respective quantity is conveyed to the transfer space 3, which according to FIG. 1 is created between the two units 1, 2 at the place of use. The bunker cover is closed for transport and can be opened upwards like a funnel, as can be seen from FIGS. 1 and 2. The other unit provides a feed, weigh and Mixing unit 2, with a conveyor the accepted aggregates feeds to the mixer, and in the weighing device, which is above the mixer is arranged, the appropriate amounts of water, cement and any Additions are measured.

Both units 1, 2 are provided with extendable supports 5, the feed, Weighing and mixing unit 2 can be placed at an angle so that a concrete mixing vehicle can drive in below the outlet of the mixer. The Conveyor of the unit 2 can be folded out in the longitudinal direction, so that it is in the Transport position within the closed feed, weighing and mixing unit 2 is housed, and is extended to the rear at the installation site. This way the lower feed end of the conveyor below the delivery end of the weighing belt and the top discharge end of the conveyor via the mixer.

Fig. 3 shows the transfer area between the two units 1, 2, wherein - around the To be able to heat the concrete production plant in the cold season - the transfer room 3 can be closed. For this wall parts are used, which by the rear end faces 6 and 11 of the two units 1, 2 extended, swung out or can be folded out.

3, 4 and 5 can be seen from the front 6 of the bunker and weighing unit 1 a first wall part can be folded out forwards about an upper horizontal axis, which forms a folding roof 7 of the transfer space 3, and with its lower edge is connected to the front side 11 of the feed and mixing unit 2.

Connected to the wall part 7 and foldable with it or individually from the bunker Weighing unit 1 can be swung out wall parts, the side walls 8 above the Form door opening on both sides of the transfer space 3.

As can be seen from FIGS. 3 and 6, on the front side 11 of the feed and Mixing unit 2 provided the missing wall parts, an upper end wall part can be moved back and down together with the conveyor, and as a sloping rear wall 12 of the transfer space 3 between the delivery end the weighing belt and the feed end of the conveyor is used. Two parts essentially having the shape of right-angled triangles become individual pivoted outwards from the feed and mixing unit 2, and form lower side wall parts 14 of the transfer space between the door openings and the feed conveyor Mixing unit 2. Doors 4 are inserted or hung into the door openings. This creates a continuous interior space that contains both units 1, 2 and includes the transfer space 3, and by one or more heating devices, not shown is heated, which can be accommodated at any suitable location.

The entire heated interior is also with the exception of the mixer area walkable. In the bunker and weighing unit 1 is due to the tapered bunker outlets a walkable web 9 is provided. Likewise, in the feed and Mixing unit formed a web or a staircase on both sides of the conveyor. In order to have a co-heatable part of the interior in the area of the mixer To be able to realize sidewalk 17 are at least parts of the long sides 16 of the Feed and mixing unit 2 provided with wall parts that are moved outwards can. These wall parts consist of an upper pivotable about an upper axis Roof part 19 with translucent plates on which a parallel A vertical wall 18 is articulated pivotally. Inside is in the in Fig. 7th closed position shown on the right, a sidewalk slab 17 up by a lower axis in the position shown in Fig. 7 on the left can be folded out. The vertical wall 18 then lies against the outer wall of the pavement plate 17. In the 7 on the right, the vertical wall 18 projects above the superscript Sidewalk plate 17 down by the appropriate amount.

Claims (5)

1. Concrete production facility weather-protected by external walls, with a hopper and weighing unit (1), and with a conveying, weighing and mixing unit (2), characterized in that a closed transfer area (3) is provided between the two units (1, 2), so that the entire concrete production facility can be heated.
2. Concrete production facility according to claim 1, characterized in that the external walls are provided with heat and/or sound insulation.
3. Concrete production facility according to claim 1 or 2, characterized in that the two units (1, 2) are each developed as a semitrailer.
4. Concrete production facility according to claim 3, characterized in that the transfer area (3) has wall sections (7, 8, 12, 14) which can be folded outwards and downwards from the ends (6, 11) of both units (1, 2) as well as a door (4).
5. Concrete production facility according to claim 3, characterized in that the conveying, weighing and mixing unit (2), has covered walkways (17) which can be folded outwards laterally from the longitudinal sides (16).

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