DE2241287A1 - Refractory and insulating furnace lining - is composed of blocks which can be installed and anchored to frame by unskilled labour - Google Patents

Abstract

A refractory lining for industrial furnaces comprises at least two layers of insulation and one layer of refractory material; all the layers are constituted of large precast blocks which can be secured to the furnace frame and anchored to one another. Preferably, the refractory layer has longitudinal grooves along the edges of its panels, which engage with corresponding tongues projecting all around the periphery of anchor blocks secured to the furnace frame. The insulating layer immediately behind the refractory layer is secured by a similar tongue and groove arrangement; the tongues of the anchor blocks are continued in the spaces between anchor blocks by similar tongues on filler blocks between the anchor blocks. Behind the anchor blocks, the corresponding space between the third layer is made up with filler material or blocks.

Description

Refractory lining for industrial furnaces made of prefabricated components Die The invention relates to a refractory lining for industrial furnaces, consisting of at least one refractory and at least two insulating layers.

Such linings have the purpose of protecting OSenvan.de from excessive To preserve heat exposure. Furthermore, heat should be radiated outwards be avoided.

Refractory linings are known and exist in a variety of forms often from an injected, stamped or cast monolithic, refractory Front layer. Between this layer and the furnace frame there are still insulating and thermal barrier layers. These last-mentioned layers mostly consist of masonry Lightweight insulating bricks or the like.

It is also known to pour these layers behind cladding. It is also known to make the front layer from prefabricated, refractory panels to create, by means of anchors sprayed or stamped on the construction site with the rest of the lining To create the known Linings are required, but skilled workers have been trained for a long time are only available to a limited extent today. Furthermore, the manufacture requires the known linings a long assembly time, which is very expensive.

The invention is based on the object of a fire-resistant and insulating Lining for industrial furnaces or the like to create that in no time can be installed without long-term trained specialists.

This object is achieved according to the invention in that all layers the furnace cladding consists of large-format prefabricated components that are anchored together are attached to a furnace frame.

An industrial furnace lining, the individual layers of which are made up of large-format Prefabricated components can be assembled in such a way that all layers are at the same time to be built in. So there are no waiting times after creating a shift more needed to be able to create the next layer. This means that everyone can Layers can be mounted at the same time from bottom to top.

With the invention, not only the production times (assembly times) the individual layers are shortened, but - by eliminating the waiting times - the total installation time the entire lining is significantly reduced. A particular advantage the invention is to be seen in the fact that to set up and attach the prefabricated For the most part, only semi-skilled workers are required, which also reduces the mounting post be reduced.

According to the invention, the Feflerfestschicht consists of fireproof their long sides with grooved front panels, which by means of the furnace frame fastened anchor stones provided all around with springs are locked in such a way that the tongues of the anchor stones engage in the grooves in the front panels. The insulating layers consist according to the invention of insulating intermediate slats with grooves on their long sides and insulating panels, which can have smooth peripheral surfaces. Between the anchor stones inlaid filler stones complete the lining of the inks so made mushrooms represents a wall anchored in all layers made of prefabricated parts, not only db-Tch and is anchored through, but is also easy and quick to replace A Embodiment of the invention is shown schematically in the drawing and is described in more detail below. They show: FIG. 1 a front view of the lining, FIG. 2 shows a section along line A - B in FIG. 1, FIG. 3 shows a section along the line C - D in FIG. 1, FIG. 4 a section along the line E - P in FIG. 1, FIG. 5 a Section along line G - H in Fig. 1 and Fig. 6, a furnace corner in section.

The lining according to the invention consists essentially of refractory Front panels 1, insulating intermediate panels 2 and insulating panels 3. All panels 1 to 3 are held by anchor stones 6 connected to the frame structure 5. Between the insulating plates 3 and the furnace frame 5 is still a thermal insulation layer 4th

According to the invention, the front panels 1 are rectangular educated, Installed upright and provided with grooves 11 and 12 on their long sides. The shorter ones Transverse sides form smooth surfaces.

According to the invention, the insulating intermediate plates 2 have the same features Width as the front panels 1, but are only half as wide for easier assembly high.

These intermediate plates 2 are also provided with grooves 13 on their long sides and 14 provided.

So that no continuous joints are formed, the panels can 1 and 2 are installed offset in height to each other.

The insulating plates 3 have the same circumferential dimensions as the intermediate plates 2 and are provided with smooth circumferential surfaces.

The anchor stones 6 are square in cross section and slightly longer than the thickness of the two plates 1 and 2 combined. In the front deil are the anchor stones 6 with the grooves 11 and 12 of the front panels 1 associated tongues 15 provided, which are arranged around. In the back are the anchor stones 6 with lateral, the grooves 13 and. 14 of the intermediate plates 2 assigned Springs 16 and 17 and with fastening holes 26 for attaching anchoring hooks 24 provided.

In that of two anchor stones 6 and two front panels 1 limited Felling stones 7 are used, which have grooves 18 and 19 on their narrow sides and on their long sides are provided with springs 20 and 21b behind the filling stones 7 there are insulating fillers 8 with lateral springs 22 and 23.

The lining according to the invention is assembled as follows: After the front plate la, the intermediate plates 2a, 2a 'and the insulating plates 3a, 3a' are laid The two anchor stones 6a and 6a 'are anchored by means of the anchoring hooks 24 attached to the fastening eyes 25 connected to the furnace frame 5 and below the anchor stone 6a each half an insulating filler stone 8a and half a filler stone 7a placed on the furnace floor 10. Then the two filler blocks 8a 'and 7a 'pushed from the side between the anchor stones 6a and 6a' so that the The springs 15 of the anchor stones 6 engage in the grooves 18 and 19 of the filler stone 7a '.

Now half an insulating plate b and two more whole insulating plates are needed 3b 'and 3b "in front of each other the thermal insulation layer on the furnace floor 10 set up.

In front of this, two intermediate plates 2b and 2t 'are placed one on top of the other. from the side to the anchor stones 6a and 6a 'pushed so that the springs 15 of the anchor stones 6 engage in the grooves 14 of the intermediate plate 2.

In the same way, the front plate 1b is attached to the anchor stones 6a and 6a 'or the filler stones 7a, 7a' pushed up, that a smooth front surface 27 is created.

The space between the thermal insulation layer 4 and the insulating filler stones 8 is filled with either a filler 9 or bodies 9a. Know here too possibly prefabricated parts 9a can be used.

In the same order the anchor stones 6b, 6bl, the filler stones 7b, 7b 'or 8b, 8b' and the plates 3c, 2c and 1c are mounted.

Are all of the front panels 1 standing on the floor 10 with the ones behind them Laying panels 2 and 3 lying on the floor, then only the one above. Row with the anchor stones 6a ", 6b", 6c "and the font plates 1a ', Ibl, 1c' etc. as described above -assembled.

The oven corners are also made up of prefabricated lines angular front panels le, from angular insulating panels 3 pounds and from insulating Between plates 2e and 2f, which in the exemplary embodiment on miter are cut. The plates 2e and 2f can of course also be angular just as the panels 3g and 3e can be mitred. In this Trap can be dispensed with the elbow 3r.

Refractory components are coarse ceramic bodies that are used as prefabricated parts can only be manufactured with large tolerances. Especially with large oven surfaces a compensation must be created for these tolerances.

For example, the corner designs, i.e. parts 1e, 2f, 2e, 3e-3g, to be stamped on the construction site. Pounding joints are also conceivable that between the plates 2f and 2e or between the plates 3g and 3f and 3f and 3e inserted. If, on the other hand, it has to be installed from the furnace corners to the middle of the furnace, then the middle rows of oven plates can be cut in half and fitted with a stamping joint.

The ramming joints are not shown in the exemplary embodiment.

It is also conceivable to have an anchoring row consisting of parts 6, 7 and 8 Manufactured from rammed earth if the tolerances require it.

- Patont claims -

Claims (11)

P a t e n t a n s p r ü c h e 1. Refractory lining for industrial furnaces, consisting of at least one refractory layer and at least two insulating layers, d u r c h e k e n nz e i c h n e t that all layers (1,2,3) consist of large-format There are prefabricated components that are anchored to one another and attached to a furnace frame (5) are. 2. Lining according to claim 1, d a d u r c h g ek e n n z e i c h n e t that the refractory layer is made of refractory, on its long sides with grooves (11,12) provided front panels (1), which are fastened to the furnace frame (5) by means of, All around with springs (15) provided anchor stones (6) are locked in such a way that the springs: (15) of the anchor stones (6) in the grooves (11, 12) of the front panels (1) intervention. 3. Lining according to claims 1 and 2, d a d u r c h g e k e n n z e i c h n e t that the insulating layers made of insulating intermediate plates (2) with grooves (13, 14) on their long sides and made of Ws olierpiatten (3). 4. Lining according to claims 1 to 3, d a d u r c h g e k e n n z e i h n e t that the long sides of the front panels (1) each have one or more Anchor stones (6) assigned and between the anchor stones (6) refractory filler stones (7) are used. 5. Lining according to claims 1 to 4, d a d u r c h g e k e n n z e i c h n e that the filling stones (7) on their Löngssei th with springs (20,21) and are provided with grooves (18,19) on their short sides, and that the tongues (20,21) in the flutes (11, 12) of the front plates (1) or the springs (15) of the anchor stones (6) engage in the grooves (18,19) of the filler blocks (7). 6. Lining according to claims 1 to 5, d a d u r c h g e k e n n z e i c h I1 e t that the anchor stones (6) up to the area of the intermediate plates (2) and additionally with engaging in the grooves (13,14) of the intermediate plates (2), lateral springs (16,17) are provided. 7. lining according to claims 1 to 6, d a d u r c h g e k e n n z e i c h n e t, that the intermediate plates (2) and the insulating plates (3) are only half the height of the front panels (1) and, if applicable are installed offset to each other (in height). 8. Lining according to claims 1 to d a d u r c h g e k e n n show that the spaces between the individual insulating plates (3) are filled with fillers (9) and / or fillers (9a). 9. Lining according to claim 8, d a d u r c h g e k e n n z e i c h n e t that the packing (+ 9a3 consist of prefabricated components. 10. Lining according to claims 1 to 9, d a d u r c h g e k e n n z e i h n e t that the furnace corners with angular (le, 3f) and / or mitred machined plates (2e, 2f) are lined, -that locked by means of the anchor (6) are. 11. Lining according to claims 1 to 10, d a d u r c h g e k It is noted that the layers (1,2,3) for tolerance compensation with rammed joints are provided.