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Mortar for building cooling plate in blast furnace stack

A cooling plate and blast furnace furnace technology, which is applied in the cement field of the cooling plate in the masonry blast furnace body, and can solve the problems that the cooling plate and graphite brick cannot be used, the bonding strength increases, and filling, etc.

Active Publication Date: 2007-09-12
BAOSHAN IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual operation, when the cooling plate is damaged, the cooling water in the cooling plate will be closed immediately, and the ambient temperature around the cooling plate will rise accordingly, and the ambient temperature will reach 1000°C. The characteristic that the bonding strength increases with the increase of temperature cannot be applied to filling between the cooling plate and the graphite brick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In this embodiment, by weight, the composition and the proportion of each component of the cement are respectively:

[0018] 53% of graphite, 4% of antioxidant metal silicon, 43% of normal temperature curing resin binder, plus a little additive, which is a common dispersant (commercially available product).

[0019] The thermal conductivity of the cement mixed according to this ratio reaches 16.35W / m K. All other physical and chemical performance parameters have been tested, and the results are shown in Table 1 below.

[0020] Thermal conductivity W / m.K

Embodiment 2

[0022] In this embodiment, by weight, the composition and the proportion of each component of the cement are respectively:

[0023] 50% of graphite, 3% of antioxidant metal silicon, 47% of ordinary normal temperature curing resin binder, plus a little additive, which is a common dispersant (commercially available product).

[0024] The thermal conductivity of the cement mixed according to this ratio reaches 13.38W / m K. All other physical and chemical performance parameters have been tested, and the results are shown in Table 2 below.

[0025] Thermal conductivity W / m.K

Embodiment 3

[0027] In this embodiment, by weight, the composition and the proportion of each component of the cement are respectively:

[0028] 48% of graphite, 4% of antioxidant metal silicon, 48% of normal temperature curing resin binder, plus a little additive, the additive is a common dispersant (commercially available product).

[0029] The thermal conductivity of the cement mixed according to this ratio reaches 12.73W / m·K, and all other physical and chemical performance parameters have been tested, and the results are shown in Table 3 below.

[0030] Thermal conductivity W / m.K

[0031] The cement made according to the above-mentioned composition and ratio of the present invention and the above-mentioned embodiments is mainly suitable for building and filling between the copper cooling plate and the graphite brick of the blast furnace body. Under low temperature conditions, the cement has a certain strength to meet the requirements of the overall structural strength require...

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Abstract

This invention discloses a daub for building inner cooling boards of furnace stacks including graphite, antioxidation agent and a binder to be mixed in proportion and small amount of additives, since graphite is strong in heat conduction, antioxidation agent can improve the performance of graphite materials that is easy to be oxidized , binder with high solid resin is applied for the binder to strengthen the adhesive performance and anti-high temperature of daub and high and fixed content of resin can guarantee normal temperature intensity of daub, the intensity of which meets the requirement of entire structure when building furnaces under low temperature and the intensity is lowered and heat conduction is high under high temperature and is in favor of reducing heat resistance between cold boards and surrounding graphite bricks or SiC bricks to realize the efficitive heat-transmission to the cooling boards from the graphite bricks.

Description

technical field [0001] The invention relates to an unshaped refractory material, and more specifically refers to a cement used for building a cooling plate in a blast furnace body. The cement is mainly used for building and filling between a copper cooling plate and a graphite brick in a blast furnace body. Background technique [0002] The blast furnace is an indispensable large-scale smelting equipment in the metallurgical industry. The lining refractories of the blast furnace body traditionally used for ironmaking mostly use a single aluminum silicate system or carbonized silicon brick. People in the industry know that the aluminum silicate system and carbonized silicon brick Although the strength is high, the thermal conductivity of the two is poor, especially the thermal conductivity of aluminum silicate bricks is lower, about 2W / m K. This kind of lining brick is used as the working surface of the blast furnace, due to its low thermal conductivity , it is difficult to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/536C04B35/63
Inventor 邰力唐坤甘菲芳姜华徐家仁刘振均
Owner BAOSHAN IRON & STEEL CO LTD
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