Automatic-casting material for coke oven coal loading holes

Abstract

The invention discloses an automatic-casting material for coke oven coal loading holes, wherein the automatic-casting material comprises, by weight, 82-92% of pyrophyllite, 3-10% of expanded vermiculite, 2-5% of bentonite, 1-4% of silicon micro-powder, and 0.5-1.5% of fireproof fiber. The automatic-casting material of the present invention has advantages of good construction performance, good application performance, good high-temperature resistance, easy uncovering, no corrosion on other equipment, no influence on the quality of coke after the falling of the material into the coke oven, and the like.

Description

technical field

[0001] The invention relates to a grouting material used in coking production, in particular to an automatic grouting material used for coal charging holes on coke oven equipment. Background technique

[0002] Due to increasingly stringent environmental protection requirements, major companies and enterprises engaged in coking production are faced with the problem of reducing pollution caused by discharge and leakage of coke oven coal charging holes. For a long time, most coke oven roofs have been using coal powder, refractory clinker, clay and water to solve the problem of sealing the coal charging hole of the coke oven, that is, tamping dry coal or injecting hydrated coal into the gap between the coal charging hole cover and the seat. Coal slurry or mixed with clay and clinker, and then manual pouring operation. However, due to the loose material and poor sealing performance in actual operation, when the temperature of the furnace cover gap is below 800°C,...

Examples

Embodiment 1

[0013] Adopt the material that mixes uniformly 82% pyrophyllite powder, 10% expanded vermiculite powder, 5% bentonite, 2.5% microsilica powder, 0.5% mullite fiber, add water again (relative to the weight of the material) Stir about 80% of it into a flowing slurry, and use mechanical construction methods to inject grout between the coal hole cover and the seat brick through pipes and nozzles.

Embodiment 2

[0015] Others are the same as in Example 1, but the material composition is 85% pyrophyllite powder, 8.5% expanded vermiculite powder, 2% bentonite, 4% microsilica powder, and 0.5% aluminum silicate fiber.

Embodiment 3

[0017] Others are the same as in Example 1, but the material composition is 87% pyrophyllite powder, 6% expanded vermiculite powder, 4% bentonite, 2% microsilica powder, and 1% high alumina fiber.

technical field

[0001] The invention relates to a grouting material used in coking production, in particular to an automatic grouting material used for coal charging holes on coke oven equipment. Background technique

[0002] Due to increasingly stringent environmental protection requirements, major companies and enterprises engaged in coking production are faced with the problem of reducing pollution caused by discharge and leakage of coke oven coal charging holes. For a long time, most coke oven roofs have been using coal powder, refractory clinker, clay and water to solve the problem of sealing the coal charging hole of the coke oven, that is, tamping dry coal or injecting hydrated coal into the gap between the coal charging hole cover and the seat. Coal slurry or mixed with clay and clinker, and then manual pouring operation. However, due to the loose material and poor sealing performance in actual operation, when the temperature of the furnace cover gap is below 800°C,...

Examples

Embodiment 1

[0013] Adopt the material that mixes uniformly 82% pyrophyllite powder, 10% expanded vermiculite powder, 5% bentonite, 2.5% microsilica powder, 0.5% mullite fiber, add water again (relative to the weight of the material) Stir about 80% of it into a flowing slurry, and use mechanical construction methods to inject grout between the coal hole cover and the seat brick through pipes and nozzles.

Embodiment 2

[0015] Others are the same as in Example 1, but the material composition is 85% pyrophyllite powder, 8.5% expanded vermiculite powder, 2% bentonite, 4% microsilica powder, and 0.5% aluminum silicate fiber.

Embodiment 3

[0017] Others are the same as in Example 1, but the material composition is 87% pyrophyllite powder, 6% expanded vermiculite powder, 4% bentonite, 2% microsilica powder, and 1% high alumina fiber.

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