CN104072176B - A kind of environmental protection blast furnace mud - Google Patents
A kind of environmental protection blast furnace mud Download PDFInfo
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- CN104072176B CN104072176B CN201410338353.2A CN201410338353A CN104072176B CN 104072176 B CN104072176 B CN 104072176B CN 201410338353 A CN201410338353 A CN 201410338353A CN 104072176 B CN104072176 B CN 104072176B
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Abstract
The present invention discloses a kind of novel environment friendly blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts; Yttrium mullite: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle powder: 10 ~ 25 parts; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 33 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydol? n? 2002:0.2 ~ 0.5 part; Additional bonding agent: 12 ~ 14.5 parts, nano-cellulose 0.1; Described thickening material is the weight ratio 1:1 mixture of vanadium iron ore deposit and cupric oxide. This big gun mud cost is low, good permeability, it is possible to effectively safeguard iron notch reaming, and this big gun mud is in long-term storage process in addition, it may also be useful to performance, processing property do not decline.
Description
Technical field
The invention belongs to blast furnace ironmaking plastic refractory field, it is specifically related to a kind of environmental protection blast furnace mud and preparation method.
Background technology
Blast furnace is the main equipment of manUfaCtUre of pig iron, and after blast-furnace smelting iron, after being released from iron mouth by molten iron, carries out continuously to ensure to smelt, it is necessary to iron notch is blocked, blocks the material of iron notch, be big gun mud. And iron notch is in life-time service process, all having erosion, iron notch there will be reaming, causing iron mouth to become shallow, flowing molten iron is unstable, goes out unclean iron, even running the situations such as big stream, serious impact is produced and is normally tapped a blast furnace, and finally have impact on the work-ing life of blast furnace and the growth of output. And iron mouth is in burner hearth inside, temperature height, generally, people cannot enter maintenance.
Big gun mud belongs to expendable consumed product, it may also be useful to the life-span generally only needs to reach two or three hours. Therefore under the prerequisite meeting performance, present invention uses with rear blown-out shot mud, the coal gangue rawore stacked without place discarded in coal mining process, reduce product cost, solve the problem that coal gangue solid waste is stacked without place simultaneously, also save other resource, belong to a kind of low-cost environment-friendly product.
Summary of the invention
It is an object of the present invention to provide that a kind of cost is low, resource reusable edible, also have the blast furnace mud of iron mouth maintenance function, this big gun mud can effectively utilize coal gangue raw material, and waste reduces costs, and can safeguard again iron notch simultaneously; In addition, Glydoln2002 is added inside big gun mud, it is ensured that big gun mud every performance in process of depositing before use does not decline.
The above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts; Yttrium mullite: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle powder: 10 ~ 25 parts; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 33 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydoln2002:0.2 ~ 0.5 part; Additional bonding agent: 12 ~ 14.5 parts, nano-cellulose 0.1; Described thickening material is the weight ratio 1:1 mixture of vanadium iron ore deposit and cupric oxide.
Preferred as the present invention, described through crusher in crushing, need to choose the particle of 1-0mm with rear blown-out shot mud; Described yttrium mullite refers in mullite lattice the solid solution extraordinary mullite of yttrium oxide, and its yttrium oxide solid solubility is 2.5%; Described coal gangue rawore is the material mined and peel off.
Preferred as the present invention, described modification magnesium iron aluminium Pre-synthesized spinel fine powder is 220 orders, and chemical group becomes magnesium oxide 10%, ferric oxide 35%, aluminum oxide 53%, zirconium white 2%; Recycled graphite electrode powder is the spent cathodes of steel-making, wears into 325 order fine powders; Vanadium iron ore deposit is 325 order fine powders of technical grade content more than 80%; Cupric oxide is 200 object powder; Asphalt powder carbon yield 40%, softening temperature 110 DEG C; Glydoln2002 is a kind of properties-correcting agent, can prevent organism from volatilizing, it is possible to makes ion-exchange bigger reversibility occur, after breeching, makes big gun mud can return to original performance faster; Nano-cellulose is a kind of Biodegradable material, it is possible to increase the ventilation property in big gun mud use procedure.
Preferred as the present invention, this bonding agent is by the modification bonding agent of tar by obtaining with sodium peroxide Hybrid Heating. As preferably, the benzopyrene content of described modification bonding agent is not more than 100ppm.
In sum, the present invention compared with prior art, has following outstanding advantage and useful effect:
The present invention, compared with existing big gun mud product, owing to adding magnesium iron aluminium Pre-synthesized spinel powder and thickening material, it is possible in use repair iron mouth, and promote to have repaired the sintering of iron mouth, prevents the function of iron notch reaming again.
This product is compared with existing big gun mud, and after adding Glydoln2002, the shelf time is long, and after long-term storage, every performance does not decline; The nano-cellulose added can ensure the ventilation property of big gun mud, it may also be useful to can not form the flame arrow phenomenon of molten iron in process.
This product is lower than cost with existing big gun mud, and the material selecting the cost such as soft coal spoil, blown-out shot mud low, significantly reduces the cost of big gun mud, can meet again the needs that blast furnace is normally produced completely; Add modified clay, improve plasticity and the activity of big gun mud, reparation iron notch is more favourable.
After using the present invention, iron notch is maintained, and blast fumance is normal, and big gun mud prices, for enterprise and user have saved cost, it is possible to before thoroughly changing current State of Blast Furnace, iron mouth becomes shallow, the problems such as big gun mud is seriously polluted, cost height.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1: a kind of for 1080m3Blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts; Yttrium mullite: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle powder: 10 ~ 25 parts; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 35 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydoln2002:0.2 ~ 0.5 part; Additional bonding agent: 14.5 parts, nano-cellulose 0.1. The preparation method of big gun mud: all raw materials are put into mixing pan, first pre-mixing 10 minutes; Then the 90% of bonding agent total amount is added, wet stone roller 30 minutes; Adding 10% remaining bonding agent, rewetting grinds 10 minutes; Through big gun mud microtome, then through mud extruder, squeezing mud shaping, pack, is finished product; Squeeze mud temperature and it is set as 65 DEG C.
Embodiment 2: a kind of for 2500m3Blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts;Yttrium mullite: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle powder: 10 ~ 25 parts; ; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 35 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydoln2002:0.2 ~ 0.5 part; Additional bonding agent: 14 parts, nano-cellulose 0.1. The preparation method of big gun mud: all raw materials are put into mixing pan, first pre-mixing 10 minutes; Then the 90% of bonding agent total amount is added, wet stone roller 30 minutes; Adding 10% remaining bonding agent, rewetting grinds 10 minutes; Through big gun mud microtome, then through mud extruder, squeezing mud shaping, pack, is finished product; Squeeze mud temperature and it is set as 72 DEG C.
Embodiment 3: a kind of for 3200m3Blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts; Yttrium mullite: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle powder: 10 ~ 25 parts; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 35 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydoln2002:0.2 ~ 0.5 part; Additional bonding agent: 13 parts, nano-cellulose 0.1. The preparation method of big gun mud: all raw materials are put into mixing pan, first pre-mixing 10 minutes; Then the 90% of bonding agent total amount is added, wet stone roller 30 minutes; Adding 10% remaining bonding agent, rewetting grinds 10 minutes; Through big gun mud microtome, then through mud extruder, squeezing mud shaping, pack, is finished product; Squeeze mud temperature and it is set as 65 DEG C.
Embodiment 4: a kind of for 5800m3Blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts; Yttrium mullite powder: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle: 10 ~ 25 parts; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 35 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydoln2002:0.2 ~ 0.5 part; Additional bonding agent: 12 parts, nano-cellulose 0.1. The preparation method of big gun mud: all raw materials are put into mixing pan, first pre-mixing 10 minutes; Then the 90% of bonding agent total amount is added, wet stone roller 30 minutes; Adding 10% remaining bonding agent, rewetting grinds 10 minutes; Through big gun mud microtome, then through mud extruder, squeezing mud shaping, pack, is finished product; Squeeze mud temperature and it is set as 65 DEG C.
The performance test results of above-described embodiment 1 ~ 4 sees the following form
After it uses, situation is as follows: easily beat mud, iron mouth appropriate depth, mean pressure big gun 20 minutes, and rapidly, anti-slag iron aggressiveness is good for sintering, and iron mouth is safeguarded obviously, does not emit tobacco, stokehold Working environment be improved significantly.
This specific embodiment is only explanation of the invention; it is not the restriction to invention; the present embodiment can be made any amendment by those skilled in the art after reading this specification as required, but as long as being all subject to the protection of patent law in the right of the present invention.
Claims (2)
1. one kind for 5800m3Blast furnace mud, it is characterised in that described blast furnace mud is made up of the component of following weight part: with rear blown-out shot mud: 10 ~ 20 parts; Yttrium mullite powder: 5 ~ 15 parts; Coal gangue rawore: 10 ~ 20 parts; Modification ferro-magnesium-aluminum spinelle powder: 10 ~ 25 parts; Modified clay: 10 ~ 20 parts; Recycled graphite electrode powder: 10 ~ 35 parts; Thickening material: 8 ~ 18 parts, asphalt powder: 3 ~ 8 parts; Glydoln2002:0.2 ~ 0.5 part;Additional bonding agent: 12 parts, nano-cellulose 0.1 part; Described thickening material is the weight ratio 1:1 mixture of vanadium iron ore deposit and cupric oxide; Described modification ferro-magnesium-aluminum spinelle powder is 220 orders, and chemical group becomes magnesium oxide 10%, ferric oxide 35%, aluminum oxide 53%, zirconium white 2%; Described modified clay is the product obtained after part water is sloughed in the insulation of 500 DEG C, Guangxi mud for 3 hours; Described yttrium mullite refers in mullite lattice the solid solution extraordinary mullite of yttrium oxide, and its yttrium oxide solid solubility is 2.5%.
2. a kind of blast furnace mud according to claim 1, it is characterised in that: described additional bonding agent is the low benzopyrene tar of modification.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410338353.2A CN104072176B (en) | 2014-07-16 | 2014-07-16 | A kind of environmental protection blast furnace mud |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410338353.2A CN104072176B (en) | 2014-07-16 | 2014-07-16 | A kind of environmental protection blast furnace mud |
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| CN201610161113.9A Division CN105712664A (en) | 2014-07-16 | 2014-07-16 | Novel environment-friendly blast furnace stemming |
| CN201610161001.3A Division CN105777161A (en) | 2014-07-16 | 2014-07-16 | Novel environment-friendly blast furnace taphole clay |
| CN201610161128.5A Division CN105819877A (en) | 2014-07-16 | 2014-07-16 | Novel environment-friendly blast furnace stemming |
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| Publication Number | Publication Date |
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| CN104072176A CN104072176A (en) | 2014-10-01 |
| CN104072176B true CN104072176B (en) | 2016-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105110805B (en) * | 2015-09-21 | 2018-02-13 | 广东悦江节能技术有限公司 | A kind of blast furnace mud compound |
| CN111825469B (en) * | 2020-07-29 | 2023-03-17 | 郑州科信炉料有限公司 | Environment-friendly anhydrous stemming for single-taphole blast furnace and preparation method thereof |
| CN112624734B (en) * | 2020-12-12 | 2023-05-09 | 长兴云峰炉料有限公司 | Environment-friendly anhydrous stemming and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557691A (en) * | 2012-01-17 | 2012-07-11 | 山国强 | Low-cost blast furnace stemming |
| CN103011871A (en) * | 2013-01-24 | 2013-04-03 | 山国强 | Novel blast furnace stemming |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557691A (en) * | 2012-01-17 | 2012-07-11 | 山国强 | Low-cost blast furnace stemming |
| CN103011871A (en) * | 2013-01-24 | 2013-04-03 | 山国强 | Novel blast furnace stemming |
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