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Steering blocks and support structures

A technology of supporting structure and turning surface, applied in the direction of lining support, lighting and heating equipment, furnaces, etc., can solve the problems of temperature conditions and oxygen concentration conditions, increase the function of through-holes of lattice bricks, and large bending loads, so as to eliminate problems such as Restriction of temperature conditions and oxygen concentration conditions, suppression of increase in flow rate, effect of increasing heat-resistant temperature

Active Publication Date: 2018-07-24
NIPPON STEEL & SUMIKIN ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] In addition, in the existing bracket, there will be a large bending load at the horizontal beam
In particular, since the horizontal beam is continuously subjected to a bending load at a temperature of about 350°C, the cross-sectional dimension has to be increased in order to develop sufficient strength, which further increases the loss of the through-hole function of the checker bricks described above.
[0029] As described above, in the conventional hot air stove, there are restrictions on temperature conditions and oxygen concentration conditions due to brackets, etc., and therefore, there is a strong need to eliminate this problem

Method used

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  • Steering blocks and support structures
  • Steering blocks and support structures
  • Steering blocks and support structures

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0120] Figure 1 to Figure 8 The first embodiment of the present invention is shown.

[0121] figure 1 Among them, the hot blast stove 1 of this embodiment is an external combustion hot blast stove having a combustion chamber 2 and a regenerator 3 , and the tops of each furnace communicate with each other through connecting pipes 4 .

[0122] The combustion chamber 2 has a cylindrical furnace shell 20 .

[0123] A burner 21 for heating is provided at the bottom of the furnace shell 20 of the combustion chamber 2 , and a gas supply pipe 22 and an external air supply pipe 23 are connected to the bottom side of the furnace shell 20 . In the burner 21, the gas supplied from the gas supply pipe 22 and the outside air supply pipe 23 is mixed with the outside air and combusted to generate high-temperature combustion gas. The generated high-temperature combustion gas flows through the connecting pipe 4 and is supplied to the regenerator 3 .

[0124] A hot air supply pipe 24 is con...

no. 2 Embodiment approach

[0202] Figure 9 and Figure 10 The second embodiment of the present invention is shown.

[0203] In the first embodiment described above, the V-shaped turning surfaces S1 and S2 were set, but in this embodiment, the substantially conical turning surface S3 is used.

[0204] In addition, the present embodiment differs from the above-mentioned first embodiment in the shape of the turning surface S3, and accordingly, the arrangement of the turning bricks 7, support bricks 6, and checker bricks 5 of the support structure 32 is different. However, in this embodiment, the structure of the hot blast stove 1, the structure of the heat storage part 31 and the support structure 32, the structure of the turning brick 7, the support brick 6, and the checker brick 5 are the same as that of the said 1st embodiment.

[0205] Therefore, in the following description, only the parts different from the above-mentioned first embodiment will be described.

[0206] like Figure 9 As shown, the...

no. 3 Embodiment approach

[0214] Figure 11 to Figure 14 The third embodiment of the present invention is shown.

[0215] In the above-mentioned first embodiment, the respective basic shapes 5P, 6P, and 7P of the checker brick 5, the support brick 6, and the turning brick 7 are made into common hexagonal column shapes to form a structure suitable for stacking in steps. .

[0216] On the other hand, in this embodiment, simplification and generalization of the members which comprise 32 A of support structures are achieved using support bricks 6A, 6B and 7 A of turning bricks.

[0217] exist Figure 12 Among them, the supporting brick 6A has a main body 60A formed by casting refractory bricks. The upper surface 61A and the lower surface 62A of the main body 60A are rectangular, a pair of side surfaces 63A are trapezoidal shapes narrowed downward, and the other pair of side surfaces 64A are inclined. rectangle.

[0218] Here, the width of the short sides of the upper surface 61A is set to be equal to o...

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Abstract

The invention provides a support structure (32) for supporting checker bricks (5) of a hot blast stove. The support structure (32) has a steering brick (7) supporting the grid brick (5) and a supporting steering brick (7 ) of the supporting brick (6). The turning brick (7) has: a main body (70); a turning passage (75), which communicates with the through hole (54) of the checker brick (5) and opens on the side of the main body (70). The turning bricks (7) are arranged along the virtual turning surface that separates the interior of the hot blast stove from top to bottom, and a horizontal passage that communicates with the turning passage (75) is formed between the turning bricks (7) and the supporting bricks (6) (35).

Description

technical field [0001] The present invention relates to a support structure for supporting checker bricks of a hot blast stove, and a slope block for use in the support structure. Background technique [0002] A hot blast stove is additionally installed on the blast furnace for ironmaking. Checker bricks for heat storage are stacked inside the hot blast stove. As a structure when checker bricks are stacked, there is a stacked structure in which checker bricks of each layer are continuous one by one (chimney flue checker assembly, see Patent Document 1). In addition, there is also a stacked structure in which the checker bricks of each layer are sequentially dislocated in such a way that the brick joints of each layer are not aligned (stair overlapping stacking or ABC stacking, refer to Patent Document 2). [0003] An air duct for air circulation of the checker bricks is connected to the lower side of the hot blast stove. In addition, brackets for supporting checker bricks...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B9/04F27D1/14
CPCC21B9/04C21B9/06F27D1/004F27D1/0006F27D1/04F27D1/14
Inventor 石川裕信古馆昭二伊藤宏和
Owner NIPPON STEEL & SUMIKIN ENG CO LTD