CN103044040A - Anhydrous stemming for tapping hole of blast furnace and preparation method thereof - Google Patents

Anhydrous stemming for tapping hole of blast furnace and preparation method thereof Download PDF

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Publication number
CN103044040A
CN103044040A CN2012105785697A CN201210578569A CN103044040A CN 103044040 A CN103044040 A CN 103044040A CN 2012105785697 A CN2012105785697 A CN 2012105785697A CN 201210578569 A CN201210578569 A CN 201210578569A CN 103044040 A CN103044040 A CN 103044040A
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percent
mud
blast furnace
finished
smaller
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CN2012105785697A
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CN103044040B (en
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赵亮
李大林
石永午
贺文贵
郭晓兵
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INNER MONGOLIA BAOGANG LIER HIGH-TEMPERATURE MATERIALS Co Ltd
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INNER MONGOLIA BAOGANG LIER HIGH-TEMPERATURE MATERIALS Co Ltd
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Abstract

The invention relates to anhydrous stemming for a tapping hole of a blast furnace. The anhydrous stemming comprises the following raw materials in percentage by weight: 10 to 30 percent of brown fused alumina of 3 to 0 mm, 10 to 20 percent of bauxite clinker smaller than 0.088 mm, 4 to 10 percent of silicon carbide smaller than 0.088 mm, 10 to 20 percent of soft clay smaller than 0.088 mm, 5 to 15 percent of coke powder of 3 to 1 mm, 10 to 20 percent of coke powder of 1 to 0 mm, 10 to 15 percent of silica of 3 to 1 mm and 10 to 20 percent of ferro-silicon nitride smaller than 0.088 mm. A preparation method for the anhydrous stemming comprises the following steps: (a) weighing the raw materials according to the proportion, pouring the raw materials into a heating type edge runner mill, performing dry-blending for 20 to 30 minutes, adding hot tar with the oil temperature of 80 DEG C, controlling the temperature of the mill to be 70 to 80 DEG C, performing wet mixing for 35 to 45 minutes, and measuring the Marshall value of pug at the temperature of 50 DEG C to be 650 to 680 KPa; and (b) entering a mud extruding machine through a disc feeding machine, extruding mud and wrapping by using a plastic film to obtain the finished product, placing the finished product mud into a hopper and ageing for 48 hours to use. According to the invention, the iron slag scouring resistance is high, the iron notch hole is smooth, the aperture change is little, the corrosion resistance is excellent, spattering during tapping is avoided, the tapping time is long, the mud beating pressure is proper, and the opening performance is excellent.

Description

A kind of No-water stemming material for blast furnace taphole and its preparation
Technical field:
The invention belongs to Anhydrous stemming for blast furnace and preparation method thereof.
Background technology:
NeiMenggu BaoGang GangLian Co., Ltd's iron work has 6 blast furnaces now, and total heat size reaches 12380M 3, wherein, 2200 M 3Above 4, possesses the throughput of producing 1000 ten thousand tons of iron per year, in recent years, since the raising of Under Different Concentrate Supplementing Level, high wind-warm syndrome, and press on high top, the application of the enhancements such as oxygen-enriched coal spray, combustion intensity is more and more higher, and the working conditions of tamping plug for blast furnace spout is more and more abominable, and is more and more higher to the requirement of anhydrous stemming.2008, BAOGANG GROUP company was because undergoing technological transformation, and iron work grinds the mud workshop to be removed, and the annual 10000 tons of anhydrous stemmings of iron work need whole outsourcings to guarantee the iron work need of production, need a large amount of fund of cost, have greatly improved the production cost of enterprise.
Summary of the invention:
The purpose of this invention is to provide a kind of BAOGANG GROUP company outsourcing stemming fund expenditure that not only can reduce, simultaneously to existing, enhance product performance, satisfy better the production of blast furnace, improve enterprise economic benefit a kind of No-water stemming material for blast furnace taphole and its preparation.
The objective of the invention is to be realized by following methods:
A kind of no-water stemming material for blast furnace taphole, its material composition is by weight percentage:
The preparation method of described no-water stemming material for blast furnace taphole is as follows,
(a) above-mentioned various raw materials are poured in the heating-type wheel roller by the proportioning weighing, be dry mixed 20~30 minutes, then the thermal tar that adds 80 ℃ of oil temperatures, temperature is controlled at 70-80 ℃ in grinding, wet mixing 35~45 minutes, the horse summer value of then measuring 50 ℃ of pugs gets final product for 650-680KPa, does not meet the 650-680KPa requirement if measure the horse summer value of 50 ℃ of pugs, need to increase mixing time or increase tar content and continue to adjust, until meet;
(b), squeezing in disc feeder enters mud extruder behind the mud of the test passes that makes in the step (a) encased with plastic film be finished product, finished product mud is put into hopper, ageing mixture 48 hours namely obtains no-water stemming material for blast furnace taphole of the present invention.
Beneficial effect: the present invention is as aluminum-containing raw material take brown corundum with the blast furnace stemming, take bauxite chamotte as matrix, take coke as carbon element, in matrix with addition of the high quality carbon SiClx, adopt the coal tar of Baogang coking Factory to make wedding agent, through batching, after the heating-type wheel roller mixes, form through squeezing mud again, in order further to strengthen matrix, introducing Special Anti etchant is optimized matrix in matrix, thereby has improved the corrosion resistance of stemming, in order to make stemming have micro-expansibility, in particle, introduce swelling agent, at high temperature utilize transformation of crystal to produce and expand, improved the associativity of new and old stemming.This stemming in use, anti-scum erosion is good, iron mouth pore passage is smooth, varying aperture is little, erosion-resisting characteristics is good, not splash when tapping a blast furnace, the time of tapping a blast furnace is long, it is suitable to beat mud pressure, the opening performance is good, can satisfy the requirement of intensification of smelting process in BF.
Embodiment:
Embodiment 1
A kind of no-water stemming material for blast furnace taphole, its material composition is by weight percentage:
A kind of preparation method of no-water stemming material for blast furnace taphole is as follows:
(a) various raw materials are poured in the heating-type wheel roller by the proportioning weighing, be dry mixed 20 minutes, then add thermal tar (80 ℃ of oil temperatures), temperature is controlled at 70-80 ℃ in grinding, wet mixing 40 minutes, the horse summer value of then measuring 50 ℃ of pugs gets final product for 650-680KPa, does not meet the 650-680KPa requirement if measure the horse summer value of 50 ℃ of pugs, need to increase mixing time or increase tar content and continue to adjust, until meet.
(b), with the pug of the test passes that makes in the step (a), in disc feeder enters mud extruder, squeeze behind the mud to encase with plastic film and be finished product, finished product mud is put into hopper, ageing mixture namely obtained later on no-water stemming material for blast furnace taphole of the present invention in 48 hours.
Embodiment 2
A kind of no-water stemming material for blast furnace taphole, its material composition is by weight percentage:
Embodiment 3
A kind of no-water stemming material for blast furnace taphole, its material composition is by weight percentage:
The method of embodiment 2 and embodiment 3 is identical with embodiment 1.
The present invention, anti-scum erosion is good, and iron mouth pore passage is smooth, and varying aperture is little, and erosion-resisting characteristics is good, not splash when tapping a blast furnace, the time of tapping a blast furnace is long, and it is suitable to beat mud pressure, and the opening performance is good.

Claims (2)

1. no-water stemming material for blast furnace taphole, it is characterized in that: material composition is by weight percentage:
2. the preparation method of a no-water stemming material for blast furnace taphole as claimed in claim 1 is characterized in that:
(a) above-mentioned various raw materials are poured in the heating-type wheel roller by the proportioning weighing, be dry mixed 20~30 minutes, then the thermal tar that adds 80 ℃ of oil temperatures, temperature is controlled at 70-80 ℃ in grinding, wet mixing 35~45 minutes, the horse summer value of then measuring 50 ℃ of pugs gets final product for 650-680KPa, does not meet the 650-680KPa requirement if measure the horse summer value of 50 ℃ of pugs, need to increase mixing time or increase tar content and continue to adjust, until meet;
(b), squeezing in disc feeder enters mud extruder behind the mud of the test passes that makes in the step (a) encased with plastic film be finished product, finished product mud is put into hopper, ageing mixture 48 hours namely obtains no-water stemming material for blast furnace taphole of the present invention.
CN201210578569.7A 2012-12-27 2012-12-27 Anhydrous stemming for tapping hole of blast furnace and preparation method thereof Active CN103044040B (en)

Priority Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103724025A (en) * 2013-12-27 2014-04-16 广西铁合金有限责任公司 Reparative waterless stemming for large-size submerged arc furnace taphole
CN105110802A (en) * 2015-07-28 2015-12-02 无锡市宝宜耐火材料有限公司 Stemming for blast furnace hearth and preparation method thereof
CN105314995A (en) * 2015-12-09 2016-02-10 武钢集团昆明钢铁股份有限公司 Hydrous taphole loam and preparation method thereof
CN105330316A (en) * 2015-12-09 2016-02-17 武钢集团昆明钢铁股份有限公司 Iron notch pug sleeve pug and preparation method and application method thereof
CN108503382A (en) * 2018-05-09 2018-09-07 宜兴市龙宸炉料有限公司 It is a kind of to mitigate the processing method that nuisance overflows in anhydrous stemming production process
CN108658588A (en) * 2018-06-19 2018-10-16 佘春霞 A kind of corrosion-resistant low-coumption anhydrous stemming of large blast furnace iron mouth

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1850728A (en) * 2006-05-19 2006-10-25 王恩余 Blast furnace taphole Al2O3-SiC-C system no-water cannon mire
CN101580397A (en) * 2009-06-16 2009-11-18 武汉钢铁(集团)公司 Blast furnace mud gun with low content of benzopyrene
CN102020481A (en) * 2011-01-04 2011-04-20 马鞍山钢铁股份有限公司 Novel anhydrous stemming for blast furnace
CN102180682A (en) * 2011-03-08 2011-09-14 沈阳东北大学冶金技术研究所有限公司 Siliceous stemming for filling blast furnace taphole and preparation method thereof
CN102336574A (en) * 2010-07-27 2012-02-01 辽宁科技大学 Method for producing waterless taphole mix for blast furnace from high-alumina waste refractory materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1850728A (en) * 2006-05-19 2006-10-25 王恩余 Blast furnace taphole Al2O3-SiC-C system no-water cannon mire
CN101580397A (en) * 2009-06-16 2009-11-18 武汉钢铁(集团)公司 Blast furnace mud gun with low content of benzopyrene
CN102336574A (en) * 2010-07-27 2012-02-01 辽宁科技大学 Method for producing waterless taphole mix for blast furnace from high-alumina waste refractory materials
CN102020481A (en) * 2011-01-04 2011-04-20 马鞍山钢铁股份有限公司 Novel anhydrous stemming for blast furnace
CN102180682A (en) * 2011-03-08 2011-09-14 沈阳东北大学冶金技术研究所有限公司 Siliceous stemming for filling blast furnace taphole and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103724025A (en) * 2013-12-27 2014-04-16 广西铁合金有限责任公司 Reparative waterless stemming for large-size submerged arc furnace taphole
CN105110802A (en) * 2015-07-28 2015-12-02 无锡市宝宜耐火材料有限公司 Stemming for blast furnace hearth and preparation method thereof
CN105314995A (en) * 2015-12-09 2016-02-10 武钢集团昆明钢铁股份有限公司 Hydrous taphole loam and preparation method thereof
CN105330316A (en) * 2015-12-09 2016-02-17 武钢集团昆明钢铁股份有限公司 Iron notch pug sleeve pug and preparation method and application method thereof
CN108503382A (en) * 2018-05-09 2018-09-07 宜兴市龙宸炉料有限公司 It is a kind of to mitigate the processing method that nuisance overflows in anhydrous stemming production process
CN108658588A (en) * 2018-06-19 2018-10-16 佘春霞 A kind of corrosion-resistant low-coumption anhydrous stemming of large blast furnace iron mouth

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