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Refractory sealing material for coke oven end

A sealing material and furnace head technology, which is applied in the field of refractory materials for coke ovens, can solve the problems of easy oxidation, unsuitable for coke oven furnace head sealing, etc., and achieve the effects of easy application, improved coke oven production environment, and good comprehensive performance

Active Publication Date: 2018-06-05
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the material contains a large amount of silicon carbide, it can only be used in a reducing atmosphere, and it is particularly easy to oxidize and denature in the air.
Therefore, the prior art has its specific application occasions, and is not suitable for the sealing of the coke oven head.

Method used

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  • Refractory sealing material for coke oven end
  • Refractory sealing material for coke oven end
  • Refractory sealing material for coke oven end

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with embodiment.

[0027] The embodiment of the present invention stirs according to the composition of Table 1, adds water 22% and stirs into mud material, adopts the method for mechanical or manual smearing, fills in the position that needs sealing of coke oven burner head.

[0028] Table 2 is the physical performance technical index of the embodiment of the present invention.

[0029] Table 1

[0030]

[0031]

[0032] Table 2

[0033]

[0034] ** Bonding flexural strength is the strength measured when the sealant is bonded to refractory bricks and metal iron blocks at the same time, and the higher the value, the better.

[0035] As can be seen from Table 2, the refractory sealing material for the coke oven head of the present invention has good strength, and can withstand long-term air flow erosion; the bonding strength with iron parts and refractory bricks is high, and the high temperat...

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Abstract

The invention discloses a refractory sealing material for a coke oven head. The composition of the refractory sealing material comprises 20-30% of quartz sand, 30-40% of siliceous clinker, 15-25% of kaolin, 5-15% of sericite, 2-7% of kyanite, and 3-8% of sodium silicate, and 0.3-0.8% of carboxymethyl cellulose is additionally added. The refractory sealing material of the present invention is usedfor sealing and daily repair of space between the coke oven end and iron pieces, oven end contact seams and oven shoulder seams, and facilitates long service life and clean production of a coke oven.

Description

technical field [0001] The invention relates to a refractory material for a coke oven, in particular to a refractory sealing material for a coke oven head of a coke oven. Background technique [0002] The masonry and maintenance of the main parts of the coke oven body have been highly valued, but for the periphery or edge of the furnace body, the structural design and the application of materials are often rough, which has become the hardest hit area for heat dissipation, fire and smoke in the coke oven. [0003] With the increasingly higher environmental protection requirements, these weak links have gradually attracted the attention of coking enterprises. It turns out that if there is smoke or fire in these parts of the coke oven head, it is simply plugged with clay mortar, but the filled place will crack or fall off soon, and there are still problems here. Because fire clay is usually used to bond refractory bricks, the bond strength is low (the measured bonding flexural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 张永忠马寅元刘杰甘菲芳姜伟忠
Owner BAOSHAN IRON & STEEL CO LTD
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