DE19516205C2 - Plant for drying and firing ceramic moldings - Google Patents

Description

The invention relates to a plant for drying and firing ceramic Shaped articles, such as bricks, roof tiles or the like, with a carriage that can be driven through Tunnel dryer and tunnel oven, each with its own carriage bypass for dryer cars and have kiln cars.

Such systems have become known both in practice and in the patent literature (for example WO 93/25360 A1, in particular Fig. 11).

There are four for the "round trip" of the dryer car and kiln car (kiln car) longitudinal carriage transport tracks, namely for the dryer carriage advance, Dryer car return, kiln car forward and kiln car return, available. The four Wagon transport tracks either run (e.g. in the systems previously known in practice) next to each other or (e.g. according to WO 93/25360) partially, namely in the dryer section, one above the other. The versions with four car lines in the factory top view have a large and expensive footprint. The versions with only three car lines in the factory Floor space is designed to save space, but requires a construction agile, expensive support structure for multi-storey construction (for the purpose of stacking two Trolleys) and at both ends an expensive lifting device for the dryer trolley Implement. In any case, there are relatively high investment costs for the Drying and burning plant.  

As far as it is known from the non-generic DE 39 18 746 A1, a tunnel oven and Arrange dryer in a common building (see column 3, lines 24 + 25) and the drying blanks to put on the press on kiln cars, which they use the dryer and Driving through the furnace without reloading, there is the disadvantage of an expensive fleet of vehicles as "Kiln car" trained transport car. As is known, "kiln cars" are due to the refractory structures that are highly insulated from the tracks are essentially of a constructional nature more manoeuvrable and more expensive than uninsulated "dryer cars".

It is known from DE 36 25 322 C1, which is also non-generic, to have a tunnel dryer Combine chamber dryers in one system in such a way that those used in the tunnel dryer Dryer carts can also be used in the chamber dryers. Again, only only one type of trolley (namely "dryer trolley") is used. These uninsulated dryer cars are left after leaving the respective drying room (tunnel or chamber) both dryer systems, common return track is discharged towards the unloading point (s). At the exit-side track ends of the tunnel dryer and the chamber dryers are each one Transfer platform system required, which ultimately causes higher investment costs.

The invention has for its object to provide a simpler generic system, which has a reduced footprint, in its "track construction" parts, "Sliding platforms" and "kiln car" is inexpensive, d. H. with short track lengths as well as few sliding platforms and kiln cars, and still works efficiently.

According to the invention, this is achieved by a drying and firing system according to claim 1 solved. Further developments of the invention result from the subclaims.

In the system according to the invention, inexpensive dryer cars are used in the dryer circuit and only more expensive in the furnace circuit, where expensive thermal insulation is required Kiln car used and despite these two different systems, the required Track length and footprint are kept small - and there are only two Transfer platform systems required.

In the drawing, an embodiment of the invention is shown schematically. she shows a floor plan of a dry-burning plant for ceramic moldings, the better Overview because of only the dryer and Kiln and the associated Track system (without wagons) is shown.

A system according to the invention for drying and firing ceramic moldings, such as bricks, roof tiles or the like, has a tunnel dryer 1 for drying the moldings and a tunnel oven 2 for burning the dried moldings, which are each transported through the treatment tunnel in trolleys (not shown) . The lead track through the tunnel dryer 1 is numbered 1 a and that through the tunnel oven 2 is 2 a.

The tunnel dryer 1 and tunnel furnace 2 run parallel to one another with a lateral spacing. Between the same (1, 2) a common return track 3 is arranged, which has the same track width as the lead tracks 1 a, 2 a and is on the same level. The tracks numbered 1 a, 2 a and 3 end at both ends in front of sliding platform tracks 4 , 5 running transversely to the tunnel axes.

As can be seen from the drawing, the tunnel bypass for the tunnel dryer 1 and tunnel furnace 2 is carried out using the common return track 3 .

For loading the dryer wagons traveling through the tunnel dryer 1, there is a feed path 6 which supplies the wet / green moldings. The dried moldings are transferred by means of a transfer conveyor numbered 7 from dryer cars located on return track 3 to oven cars located in front of the tunnel oven entrance. The fired products (bricks, roof tiles) are automatically unloaded behind the tunnel kiln exit - a version is particularly preferred in which a discharge path numbered 8 begins in the area of the carriage return track 3 , in particular crosses the same and is close to the transverse sliding platform track adjacent to the tunnel entrances 4 is arranged (see drawing).

As can be seen from the drawing further, the drying tunnel and the burning tunnel approximately the same length.

According to a particular inventive concept, the travel time through the respective tunnel is the same. In such an embodiment of the tunnel dryer 1 and tunnel furnace 2 and / or carriage movement control, it is also preferred to alternately feed one carriage coming from the tunnel dryer 1 and one from the tunnel furnace 2 to the return track 3 .

Reference list

1 tunnel dryer
1 a lead track for 1
2 tunnel kilns
2 a lead track for 2
3 return tracks for 1 + 2
4 transverse sliding platform tracks (entry side)
5 transverse sliding platform track (exit side)
6 feed path
7 transfer conveyor
8 discharge lane

Claims (5)

1. Plant for drying and firing ceramic moldings, such as bricks, roof tiles, with a tunnel dryer and tunnel kiln that can be driven through by car, each having its own car bypass for dryer car and kiln car, characterized in that

• a) the tunnel dryer ( 1 ) and tunnel oven ( 2 ) is assigned a common return track ( 3 ) for dryer cars and kiln cars,
• b) the return track ( 3 ) between the tunnel dryer ( 1 ) and tunnel furnace ( 2 ) is arranged and
• c) all three longitudinal tracks ( 1 a, 2 a, 3 ) lie on one level and end in front of two transverse sliding platform tracks ( 4 , 5 ).

2. Installation according to claim 1, characterized in that the dryer car passing through the tunnel dryer ( 1 ) and the kiln car passing through the tunnel oven ( 2 ) are provided with the same travel time through the respective tunnel. 3. Plant according to claim 1 or 2, characterized in that the tunnel dryer ( 1 ) and the tunnel oven ( 2 ) are of equal length. 4. Plant according to at least one of claims 1 to 3, characterized in that between the return track ( 3 ) and the tunnel kiln lead track ( 2 a) is a dry material transversely transporting transfer track ( 7 ) is provided. 5. Plant according to at least one of claims 1 to 4, characterized in that the return track ( 3 ) is crossed by a discharge path ( 8 ) for burned goods.