SU1249289A1 - Tunnel kiln car - Google Patents

Description

The invention relates to the production of building materials and can be used in firing. trolleys tunnel kilns.

The purpose of the invention is to increase the service life.

Figure 1 shows the lining, trolleys with blocks., Axonometric, figo 2 - lining the trolley with a monolithic refractory layer, axonometric about

The lining of the trolley contains prefabricated blocks 15 laid; in the cells of a rigid spatial frame 2 on the 3c cushioning pillow

The lining is carried out as follows.

On the basis of the trolley (not shown), a rigid spatial frame 2 is installed, into the cells of which the heat insulating layer is laid in the form of a shock absorbing cushion 3 of bulk material, onto which blocks 1 are installed. inside it is a rigid spatial frame 2 mounted on a shock-absorbing pillow 3 of a layer of dense bulk material. The refractory layer can be made in the form of cells 5 with the height of the walls 6 along the perimeter above the wall 7 in the middle.

The lining is made as follows. At the base of the trolley stack shock-absorbing pillow 3 of sand or fibrous material, which is installed pre-made in the form and amor

to

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a layer of monolithic concrete coated with a lattice skeleton 2 made of asbestos cement sheets 4. When c: preparing a refractory layer with cavity cells

5 cells are filled with expanded clay gravel or chamotte sand to the level of the top of walls 6 along the perimeter.

The use of the proposed technical solution allows to increase

0 lining service life due to the execution of the heat insulating layer in the form of non-absorbing; to it a shock-absorbing cushion ensuring the safety of the refractory layer under mechanical loads a

 is also the result of a refractory layer with a rigid spatial framework, which, when the refractory layer is made of individual blocks, provides a fixed

- ZD: location of blocks on the hearth; and also performs the role of thermal seams.

Making the refractory layer monolored with cells allows to increase the strength characteristics of the lining, and also reduces linear deformations under extreme thermal loads due to the spatial framework, the thermal expansion coefficient of which differs from the thermal expansion coefficient of heat-resistant concrete. The advantage of the present invention lies in the fact that when making a monolithic layer 3 in the form of cells

m. smooth surface lining either

It is bossed with the delivery of expanded clay gravel or other 5 material used in this case; at the same time cell walls will be protected from impacts and damage.

Editor A, Sabo

fig 2

Compiled by T. Lavitina

Tehred I.Gaydosh Corrector M.Sharoshi

Order 4220/38 Circulation 561 Subscription

VNIIPI; USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35., Raushsk nab. 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (4)

1. TUNNEL FURNACE TROLLEY containing a metal base and a lining with refractory and heat-insulating layers, characterized in that, in order to increase the service life, the lining is provided with a rigid spatial frame piercing the refractory layer, while the heat-insulating layer is made in the form of a bearing shock-absorbing pillow from dense bulk material. 2. The trolley according to claim 1, characterized in that the refractory layer is made in the form of blocks installed in the cells of the frame on a layer of dense bulk material. 3. Trolley according to item G, characterized in that the refractory layer is made monolithic with the frame located inside it and is mounted on a layer of dense bulk material. 4. Trolley according to claims 1 to 3, characterized in that in the refractory layer there are cells filled with bulk material, the height being; A. the walls of the cells around the perimeter are higher than in the middle. SU „„ 1249289 Fig. 1