WO1999034161A1 - Insulation rider block - Google Patents

Abstract

The present invention pertains to the field of metallurgy and more precisely relates to a structure comprising a plurality of insulation rider blocks intended for the sole pipes of heating furnaces in rolling mills. Thanks to the device of the present invention, it is possible to increase the strength of the protection jacket by reducing the deformation and breakaway risks thereof from the rider at the welding places. The protection jacket (1) is connected to the rider (2) by welding, while the rider (2) is mounted on a sole pipe (3) and attached thereto by welding as well. The gap between the protection jacket (1) and the sole pipe (3) is filled with a thermal insulation material (4) such as kaolin wool. The thickness of the protection jacket (1) represents from 0.2 to 0.5 time that of the thermal insulation material (4). In another embodiment, the thickness of the protection jacket (1) represents from 0.025 to 0.2 or from 0.5 to 2.0 times that of the thermal insulation material.

Description

OUT OF THE CYΟΗΗΟ-ΡΕYΤΕΡΗYY BLΟΚ

WRITINGS

Field of technology

The claimed invention relates to metallurgy

industry, namely, the design of insulating

Foytene blocks PODOV heater furnace pipes -

rolling mills.

Previous level of technology

Thermal insulation of underfloor heating pipes is known

furnaces, containing a protective casing made of heat-resistant material

material with internal projections with flat support pads

with tops and grooves, inserts welded by means of

plates on the water pipe and permanently in relation to the protection

foot casing installed in the groove, and heat-insulating

material filling the gap between the protective casing and

water tube (ΡΙΙ, patent 2033590, class P 27 ϋ 3/02, 1995).

The disadvantage of such a concept is the low

the presence of fastening elements in the structure. Ο 99/341 1

The closest to the proposed device is-

is an insulating-reinforced block containing a υ-shaped

protective casing made of heat-resistant material, rayon, tire

mounted on a base pipe, inserts placed at the top

parts of the casing and connecting it to the rider by means of

welding, and heat-insulating material placed between

leather and water tooth (ΚΙΙ, patent 2096712, class P 27 0

3/02, 1997).

The disadvantage of the design is the low accuracy

protective casing due to the fact that due to uneven

temperature along the length of the heating furnace during its operation

use will cause deformation of the protective casing,

leading to rupture of the casing if its thickness is too small,

or about exfoliation of the welding seam and too much

casing.

Experiencing the technical essence

of the claimed invention

The technical result of the claimed invention is

The aim is to increase the strength of the structure by choosing the op-

optimum ratio of casing thickness and thermal insulation of a material that reduces the likelihood of deformation and

destruction of the casing and its opening at the welding points.

The technical result is achieved by the fact that in the first

variant of the insulating-retaining block containing the

shield casing made of heat-resistant material, runner, installed

mounted on a bottom pipe and connected to the casing and bottom

. pipe, and heat-insulating material placed between

with a casing and a bottom pipe, the thickness of the protective casing

makes

0.2 - 0.5 thickness of thermal insulation material.

In addition, the thermal insulation material is

Kalinka cotton wool.

In addition, teite is connected with the water pulp and the skin.

In common with the matchmaker.

The technical result is also achieved by

in the case of an insulation-proof block containing

gο protective casing made of gritty material, plastic, reinforced

mounted on a bottom pipe and connected to the casing and

bottom pipe, and heat-insulating material, placed

between the casing and the bottom of the tube, the thickness of the protective 99/

The thickness of the skin is 0.025 - 0.2 or 0.5-2.0

insulating material.

In addition, the thermal insulation material is

Kalinka cotton wool.

In addition, teite is connected with the water pulp and the skin.

In common with the matchmaker.

If the thickness of the casing is less than 0.025 of the thickness

heat-insulating material, and during the manufacture of

shield shell by casting into sand can be

create a gap in the casing. In addition, difficulties arise in

During the process of matchmaking and cultivating the skin to the patetu, and during

during operation the casing cannot withstand mechanical stress

the load is deformed and may be destroyed as a result

inequalities of temperature depending on the length of the furnace.

If the thickness of the casing is more than 2.0 of the thickness

heat-insulating material, the weight of the protective casing increased

it occurs, its corrosion occurs, burning in the welding areas.

Relative reduction in the thickness of the thermal insulation

layer leads to significant heat losses. A short description of the drawings

Fig. 1 shows a cross-section of the insulation

voice block.

How about fig. 2 a variant of insulating block is shown

ka with a double bottom pipe.

Preferred execution option

inventions

The insulating-plate block consists of a protective

beetle 1, connected to the rider 2 by means of welding.

2 is installed on water tube 3 and is connected to it like this

by means of welding. The space between the protective skin

χοм 1 and bottom pipe 2 are filled with heat-insulating material

type 4, for example, cotton wool. Thickness of protective

Skin 1 is 0.5 of the thickness of the thermal insulation

material,4.

The isolator-receiver unit operates as follows:

razom.

However, this is a somewhat nutritious information:

howl 3 lips 2. Protective skin 1 pi-

0 comes to a close 2. Space between the protective sheath

1 and the bottom pipe 3 are filled with heat-insulating material. \νθ 99/34161

4, for example, kaolin wool. Heated metal

moves in the heating furnace, contacting with the top

with the news of speech 2.

The table illustrates the achievement of the technical

5th effect - increasing the accuracy of the protective casing 1st and indicating -

the above-mentioned ratio of the thickness of the protective casing 1 and

heat-insulating material.

Table

u

15

99/34161

99/34161

5

Industrial applicability

The supporting system of heating furnaces is indirect-

has a significant impact on a whole range of technical and economic indicators

furnace operation. Absorbing heat, the floor pipes and risers

0 shield the cage from heating by radiation from below and reduce 99/34161

8

thermal efficiency of the furnace. The insulating-reinforcement block provides

makes possible minimal shielding and maximal

the surface temperature of the substrate and, having a high

durability, ensures reliability and longevity of the entire

About new information.

Claims

νθ 99/34161 Φορmule of invention 1. An insulating-reinforcement block containing a protective casing made of heat-resistant material, reamer, installed mounted on a bottom pipe and connected to the casing and bottom tube, and heat-insulating material placed between with a jacket and a bottom tube, distinguished by the fact that the thickness protective jacket is 0.2 - 0.5 οτthickness Lational mathematics. 2. An insulating-relay block, characterized in that The thermal insulation material is kaolin wool. 3. Insulating-relay block 1, 2, characterized by in that the word is connected with the pulp and the beetle as a result of matchmaking. 4. Insulating-reinforcement block containing protective ^leather made of greedy material, pedestal mounted on bottom pipe and connected to the casing and bottom pipe, and heat-insulating material placed between the casing and a bottom tube, distinguished by the fact that the thickness of the protective The thickness of the skin is 0.025 - 0.2 or 0.5-2.0 insulating material. \νθ 99/34161 RСΤ 10 5. Insulating-relay block according to item 4, characterized by the fact that the heat-insulating material is kaolin cotton wool. 6. Insulating-relay block 4, 5, characterized by 5 in that the word is connected with the fatty tooth and the jujube - as a result of matchmaking.