NL1014966C2 - Method and device for aging baked stones. - Google Patents

Description

Method and device for aging baked stones.

The present invention relates to a method and device for aging baked stones, wherein these baked stones collide with each other.

Old baked stones are weathered, which means that the 10 corners and edges are slightly rounded and give the impression of being sanded.

In some applications, including restoration, old stones are desired. That is why, among other things, old bricks are recovered at 15 demolition. However, these recovered bricks are relatively expensive, due in part to the labor required to rid them of mortar residues, and these bricks also do not always have the desired properties.

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Hence, methods and devices are known to give new baked bricks the appearance of old bricks.

In known methods of aging baked stones, a rotating drum is used, preferably with unevenness inside.

These known methods require a relatively expensive device and are relatively slow.

The object of the invention is a method of aging baked bricks which avoids these and other disadvantages and which allows a quick and efficient aging of the baked bricks with a relatively simple and inexpensive device.

According to the invention, this object is achieved in that the baked bricks are placed in a stationary container and are mixed and / or stirred by at least one rotating carrier element.

The baked bricks 10 are carried upwards with one or more carrying elements, after which they fall down from a height onto other baked bricks, whereby the corners and edges are rounded off quickly and an obsolete appearance is quickly obtained.

Preferably, a trough-shaped trough is used and thus open at the top.

A tray can be used which is elongated, while the baked bricks are also moved towards this open end with the aid of the carrying element or the carrying elements.

The invention also relates to a device for applying the method according to one of the previous embodiments, the characterizing of which comprises a stationary tray and at least one rotatable carrier element and means for rotating this carrier element arranged therein.

Preferably, the trough is an open trough open at the top, and in particular elongated and while the entraining element or the entraining elements are rotatable about a geometric axis which extends parallel to the longitudinal axis of the trough.

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With the insight to better demonstrate the features of the invention, exemplary embodiments of a method and apparatus for aging baked bricks according to the invention are described hereinafter, by way of example without any limiting character, with reference to the accompanying drawings, in which: figure 1 shows a longitudinal section of an apparatus for aging baked stones 10 according to the invention; figure 2 represents a section according to line II-II in figure 1.

The device for aging baked stones, both bricks for walls and baked floor tiles or baked pavers, mainly consists of a stationary trough 1 open at the top and transporting elements 2 rotatably arranged therein.

The trough 1 with its longitudinal direction is arranged almost horizontally on legs 3 and is open at the top. For safety reasons, this open side can be closed by a net or grid 4.

It has a semi-cylindrical bottom part 5, the ends of which are extended upwards by parallel wall parts 6.

At one end, the trough 1 is closed by a sloping wall 7, the upper end of which is located more outwardly than the aforementioned net or grid 4, so that a filling opening 8 remains open.

At the opposite end, the trough 1 is closed off by an end wall 9 and for this end wall 9 the trough 1 is provided at the bottom with a discharge opening 10 for the bricks 11.

The two walls 7 and 9 also serve to support an axis 12 which extends along the geometric axis of the cylinder of which the portion 5 forms half.

The carrier elements 2 are fixedly mounted on this shaft 12.

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The shaft 12 is driven via a belt transmission 13 by a motor 14 mounted on the ground outside the trough 1.

The carrier elements 2 can, as shown in the figures, be blade blades which are, for example, diametrically opposed two by two.

However, in a variant they can be replaced by arms on which blades are attached. In another variant, the blades can be united into a continuous spiral blade.

The shape of the carrier elements 2 is chosen in function of the hardness of the stones 11 to be aged and the degree of aging that is desired.

Each of the carrier elements 2 is shaped in such a way that it can not only carry a baked stone 11 located at the bottom of the trough 1, but in addition it brings this stone 11 a little towards the discharge opening 10.

This displacement of the bricks 11 from the filling opening 8 to the discharge opening 10 can be enhanced or even obtained solely by means of an inclined arrangement, v. ; 5 of the trough 1.

In order to artificially age fired bricks 11, the latter are thrown into the trough 1 via the filling opening 8 over the sloping wall 7.

After or before the insertion of the first bricks 11, the motor 14 is activated so that the shaft 12 is driven with the carrier elements 2. Afterwards, the 10 bricks 11 can be introduced while the motor 14 is running.

The bricks 11 are carried upwards by these carrying elements 2 until they fall back down on other stones 11.

The bricks 11 are stirred or mixed together and by rolling over and sanding over the wall of the trough 1 the visible surfaces of the bricks 11 are sanded and the corners and sharp edges are slightly rounded.

20 The baked bricks 11 quickly gain the impression of years of influence of time and weather conditions.

The broken pieces or the stone waste still promote the sanding effect.

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The bricks 11 gradually move through the carrying elements 2 also to the discharge opening 10 where they are collected. 1

It is possible to add mortar or lime or the like in the trough 1, for example via the filling opening 8, so that the bricks 11 also obtain a cement or lime veil due to the sanding effect, which increases their resemblance to a recovery stone. ··, 6

The device described above is very simple and safe and the aging is quite effective and relatively fast.

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The invention is by no means limited to the embodiments described above and shown in the figures, but such a method and device for aging baked stones can be realized in different variants without falling outside the scope of the invention.

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Claims (5)

Method of aging baked bricks, wherein these baked bricks (11) collide, characterized in that the baked bricks (11) are placed in a stationary container and mixed by at least one rotating carrier element (2) and / or stirred. 2. Method according to claim 1, characterized in that a tray is used which has the shape of a trough (1) and is thus open at the top. Method according to claim 1 or 2, characterized in that a tray is used which is elongated, while with the aid of the carrier element (2) or the carrier elements (2) the baked bricks (11) are also directed towards this open end. moved. 4. Method according to any one of the preceding claims, characterized in that cement, lime or the like is introduced into the container. 5. Device for aging baked bricks 25 (11), characterized in that it comprises a stationary tray and at least one rotatable carrier element (2) arranged therein and means (13) for rotating this carrier element (2). 6. Device according to claim 5, characterized in that the trough is a trough (1) open at the top. Device according to claim 5 or 6, characterized in that the container is elongated, while the carrier element (2) or the carrier elements (2) are rotatable about a geometric axis which extends parallel to the longitudinal axis of the container. Device according to claim 7, characterized in that it has a plurality of carrying elements (2) in the form of vanes with such a shape that they also effect a displacement of the bricks (11) in the longitudinal direction of the tray.