Large trough for blast furnace ore trough material and preparation method thereof

A material and ore trough technology, which is applied to the field of large troughs of blast furnace ore troughs and their preparation, can solve problems such as easy breaking and falling off, blocking production lines, affecting the production line, etc., and achieve the effect of avoiding cracking and falling off.

Active Publication Date: 2021-02-23
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing liner of the blast furnace ore trough is made of cast stone, which is easy to break and fall off during production, especially at the impact point of the material, which will block the production line and affect the smooth flow of production

Method used

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  • Large trough for blast furnace ore trough material and preparation method thereof
  • Large trough for blast furnace ore trough material and preparation method thereof
  • Large trough for blast furnace ore trough material and preparation method thereof

Examples

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preparation example Construction

[0023] A method for preparing a large trough for blast furnace ore trough material, specifically comprising:

[0024] 1) Prepare the liner, and the inside of the liner is provided with a metal rhombic mesh skeleton;

[0025] 2) When the liner is bonded to the shell of the large material tank, spray a layer of sand particles with a particle size of 0.3mm-0.8mm on the surface of the adhesive to improve the adhesion;

[0026] 3) Screw holes are reserved on the lining plate of the bottom material impact point on the vertical side wall of the material tank shell and the corresponding material tank shell. After the material tank shell and the liner are bonded, use expansion bolts reinforcement;

[0027] 4) A horizontal metal sliding plate is pre-embedded between the lining plates of the sliding part of the sloped side wall.

[0028] The lining plate is cast stone, and the index requirements of cast stone are: compressive strength ≥ 58860N / e㎡; bending strength ≥ 6377N / e㎡; impact to...

Embodiment

[0031] A method for preparing a large trough for blast furnace ore trough material, specifically comprising:

[0032] 1) The liner is prepared, and the inside of the liner is equipped with a metal rhombic mesh skeleton; the metal rhombic mesh skeleton is made of Φ5mm steel bars; the thickness of the liner is 45mm.

[0033] 2) When the liner is bonded to the shell of the large material tank, spray a layer of sand particles with a particle size of 0.3mm-0.8mm on the surface of the adhesive to improve the adhesion;

[0034] 3) Screw holes are reserved on the lining plate of the bottom material impact point on the vertical side wall of the material tank shell and the corresponding material tank shell. After the material tank shell and the liner are bonded, use expansion bolts reinforcement;

[0035] 4) A horizontal metal sliding plate is pre-embedded between the lining plates of the sliding part of the sloped side wall.

[0036] The lining plate is cast stone, and the index requ...

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Abstract

The invention relates to a large material trough of a blast furnace mine trough, which comprises a large material trough shell, a lining plate, a metal slide plate, bolts, and a metal rhombic mesh skeleton. On the side wall, there are bolts between the bottom lining plate of the vertical side wall and the shell of the large material tank, and a metal sliding plate is provided between the lining plates on the inclined side wall. The metal sliding plate is a welded part, including the bottom plate, the vertical The board, the outriggers, the base plate and the vertical plate are vertically connected, the outriggers are fixedly connected with the base plate, and a metal rhombic mesh skeleton is arranged inside the liner. The large material trough of the blast furnace ore trough of the present invention can directly bear the impact and avoid the phenomenon of cracking and falling off. Increase the bolt fastening to solve the phenomenon that the lining plate falls off due to the change of temperature difference in winter in Northeast China and the dew hanging in the large groove of the material.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a large trough for blast furnace ore trough material and a preparation method thereof. Background technique [0002] The existing large trough liner for blast furnace ore trough material is cast stone, which is easy to break and fall off during production, especially at the impact point of the material, which will block the production line and affect the smooth flow of production. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a blast furnace ore trough material large trough and its preparation method, which can improve the wear resistance and impact resistance of the material large trough, and prolong the service life. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A large material trough for a blast furnace mine trough, comprising a large material trough she...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/00C21B7/18
Inventor 金建栋张荣军
Owner ANGANG STEEL CO LTD
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