CN102603336B - High heat conductivity ramming material - Google Patents
High heat conductivity ramming material Download PDFInfo
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- CN102603336B CN102603336B CN 201210081518 CN201210081518A CN102603336B CN 102603336 B CN102603336 B CN 102603336B CN 201210081518 CN201210081518 CN 201210081518 CN 201210081518 A CN201210081518 A CN 201210081518A CN 102603336 B CN102603336 B CN 102603336B
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Abstract
The invention discloses a high heat conductivity ramming material which is prepared by raw materials of artificial graphite particles, anthracite and a binder according to the following method: treating the anthracite in a graphitizing furnace for 24 hours at the high temperature; naturally cooling, and crushing; preparing a raw material A by a particle material according to a certain grain size distribution; preparing a raw material B by artificial graphite according to a certain grain size distribution; preparing the binder C by coal tar pitch, coal tar and furan resin at a weight ratio of 20:60:20; mixing the raw material A and the raw material B in a mixing kneading pot at a ratio of 1:1; heating to 80-100 DEG C; adding the binder C, wherein a ratio of dry materials to the binder is 84:16; cooling the mixture after mixing for 1-2 hours; and split charging into bags. With the adoption of the high heat conductivity ramming material, the construction is convenient, the heat-conducting property is good, and the heat surface temperature in a furnace lining can be quickly conducted to the cooling wall. The high heat conductivity ramming material is used for leveling a blast-furnace bottom or filling gaps between a furnace body and a furnace shell, so that the service life of the furnace body can be prolonged by more than two years.
Description
Technical field
The present invention relates to anti-material industry stopping composition commonly used, especially relate to a kind of for filling the high heat conduction ramming mass that blast furnace masonry gap or furnace bottom levelling are used.
Background technology
Ramming mass is widely used in metallurgy, building materials, non-ferrous metal metallurgy, chemical industry, manufacturings such as machinery are starting material with silicon carbide, graphite, electric calcined anthracite etc. mainly, the multiple ultrafine powder additive of admixture, electric smelting cement or compound resin are the diffusing shape material body that wedding agent is made, and are used for filling shaft cooling apparatus and masonry gap or masonry screed-coat and use.Ramming mass requires chemical stability good, and anti-washing away resistance to worn, antistripping, and high heat conduction etc., but the thermal conductivity of the existing ramming mass that uses has influenced the work-ing life of blast furnace only at 3-6w/m.k.
Summary of the invention
The object of the present invention is to provide a kind of blast furnace high heat conduction ramming mass in work-ing life that prolongs.
For achieving the above object, the present invention can take following technical proposals:
High heat conduction ramming mass of the present invention, it is formulated according to following weight parts proportioning and method by raw material synthetic graphite particle, hard coal and binding agent:
The first step under 2300 ℃ of conditions is handled the outsourcing hard coal 24 hours in graphitizing furnace, is broken into particulate material behind the naturally cooling, and described particulate material is mixed with raw material A by following grain size distribution:
Granularity＜100 orders, 40%;
1mm 〉=granularity 〉=100 orders, 28%
4mm 〉=granularity＞1mm, 20%;
8mm 〉=granularity＞4mm, 10%;
10mm 〉=granularity＞8mm, 2%;
In second step, synthetic graphite is mixed with raw material B by following grain size distribution:
Granularity＜100 orders, 40%;
1mm 〉=granularity 〉=100 orders, 28%
4mm 〉=granularity＞1mm, 20%;
8mm 〉=granularity＞4mm, 10%;
10mm 〉=granularity＞8mm, 2%;
The 3rd step, with coal-tar pitch, coal tar and furane resin according to coal-tar pitch: the weight part of coal tar: furane resin=20:60:20 is mixed with binding agent C;
The 4th step, with raw material A and raw material B in the ratio of 1:1 go into to mix pinch in the pot mix, be heated to 80-100 ℃ after, add binding agent C, the ratio of siccative and binding agent is 84:16, mixes after 1-2 hour and cools off, branch is packed into and bag is got final product.
Using method: get final product construction application after material is unpacked, auxiliary material is wanted evenly during construction, about the thickness 80-150mm of layer shop, comes and goes ramming continuously, orderly with the vibrations instrument, makes the uniform tamping of the bed of material.
The invention has the advantages that material cost is low, manufacturing process is simple, and the volume density of finished product ramming mass and compressive strength meet national standard fully, and thermal conductivity can be brought up to 30 w/m.k simultaneously, sees the following form.Ramming mass easy construction of the present invention, heat conductivility is good, can fast the hot-face temperature in the furnace lining be conducted to cooling stave, is used for the levelling at the bottom of the State of Blast Furnace or is used for the filling in slit between body of heater and the furnace shell, and body of heater is prolonged more than 2 years work-ing life.
| ? | The present invention | GB |
| Volume density (g/cm 3） | ＞1.6 | ＞1.6 |
| Compressive strength (MPa) | 3.0 | 3.0 |
| Thermal conductivity (w/m.k) | 12-30 | ＜12 |
Embodiment
High heat conduction ramming mass of the present invention, it is formulated according to following weight parts proportioning and method by raw material synthetic graphite particle, hard coal and binding agent:
The first step under 2300 ℃ of conditions is handled outsourcing hard coal (ash content＜6 ﹪, fugitive constituent 6 ﹪-8 ﹪, moisture＜5 ﹪) 24 hours in graphitizing furnace, is broken into particulate material behind the naturally cooling, and described particulate material is mixed with raw material A by following grain size distribution:
Granularity＜100 orders, 40%;
1mm 〉=granularity 〉=100 orders, 28%
4mm 〉=granularity＞1mm, 20%;
8mm 〉=granularity＞4mm, 10%;
10mm 〉=granularity＞8mm, 2%;
In second step, synthetic graphite is mixed with raw material B by following grain size distribution:
Granularity＜100 orders, 40%;
1mm 〉=granularity 〉=100 orders, 28%
4mm 〉=granularity＞1mm, 20%;
8mm 〉=granularity＞4mm, 10%;
10mm 〉=granularity＞8mm, 2%;
The 3rd step, with coal-tar pitch, coal tar and furane resin according to coal-tar pitch: the weight part of coal tar: furane resin=20:60:20 is mixed with binding agent C;
The 4th step, with raw material A and raw material B in the ratio of 1:1 go into to mix pinch in the pot mix, be heated to 80-100 ℃ after, add binding agent C, the ratio of siccative and cakingagent is 84:16, mixes after 1-2 hour and cools off, branch is packed into and bag is got final product.
The volume density of ramming mass product of the present invention and compressive strength all meet national standard, and thermal conductivity is up to 12-30 (w/m.k), be used for the slit between the levelling of iron-smelting blast furnace furnace bottom or filling body of heater and the furnace shell, because the high thermal conductivity of himself makes prolong more than 2 years the work-ing life of blast furnace.
Claims (1)
1. one kind high heat conduction ramming mass, it is characterized in that: it is formulated according to following weight parts proportioning and method by raw material synthetic graphite particle, hard coal and binding agent:
The first step under 2300 ℃ of conditions is handled the outsourcing hard coal 24 hours in graphitizing furnace, is broken into particulate material behind the naturally cooling, and described particulate material is mixed with raw material A by following grain size distribution:
Granularity＜100 orders, 40%;
1mm 〉=granularity 〉=100 orders, 28%
4mm 〉=granularity＞1mm, 20%;
8mm 〉=granularity＞4mm, 10%;
10mm 〉=granularity＞8mm, 2%;
In second step, the synthetic graphite particle is mixed with raw material B by following grain size distribution:
Granularity＜100 orders, 40%;
1mm 〉=granularity 〉=100 orders, 28%
4mm 〉=granularity＞1mm, 20%;
8mm 〉=granularity＞4mm, 10%;
10mm 〉=granularity＞8mm, 2%;
The 3rd step, with coal-tar pitch, coal tar and furane resin according to coal-tar pitch: the weight part of coal tar: furane resin=20:60:20 is mixed with binding agent C;
The 4th step, with raw material A and raw material B in the ratio of 1:1 go into to mix pinch in the pot mix, be heated to 80-100 ℃ after, add binding agent C, the ratio of siccative and binding agent is 84:16, mixes after 1-2 hour and cools off, branch is packed into and bag is got final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210081518 CN102603336B (en) | 2012-03-26 | 2012-03-26 | High heat conductivity ramming material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210081518 CN102603336B (en) | 2012-03-26 | 2012-03-26 | High heat conductivity ramming material |
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| CN102603336A CN102603336A (en) | 2012-07-25 |
| CN102603336B true CN102603336B (en) | 2013-10-02 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253947B (en) * | 2013-05-13 | 2014-08-20 | 德清县力拓炉料有限公司 | Method for preparing furnace lining of metallurgical intermediate frequency furnace |
| CN105132951B (en) * | 2015-09-30 | 2017-11-24 | 晟通科技集团有限公司 | A kind of aluminium electrolytic cell cathode filling thickener and preparation method thereof |
| CN107434419A (en) * | 2017-07-26 | 2017-12-05 | 中冶南方邯郸武彭炉衬新材料有限公司 | A kind of carbon ramming mass and preparation method thereof |
| CN110627505B (en) * | 2018-06-21 | 2022-06-14 | 中国京冶工程技术有限公司 | Blast furnace bottom joint filling material and preparation method thereof |
| CN111423592A (en) * | 2020-04-10 | 2020-07-17 | 中国科学院山西煤炭化学研究所 | Preparation method of low-viscosity high-carbon-residue-rate binder asphalt for carbon materials |
| CN112125682B (en) * | 2020-08-21 | 2022-05-31 | 宁波长振铜业有限公司 | Furnace striking material for melting channel of regenerative brass power frequency induction furnace and use method |
| CN112898034A (en) * | 2021-03-30 | 2021-06-04 | 河南远洋新材料技术有限公司 | Graphite expanding ramming mass and preparation method and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1031830A (en) * | 1987-09-07 | 1989-03-22 | 冶金工业部武汉钢铁设计研究院 | Auto-roasting carbon brick made of anthracite-base for electrocalcining |
| CN1072440A (en) * | 1991-11-18 | 1993-05-26 | 冶金工业部洛阳耐火材料研究院 | A kind of carbon containing bonding agent for refratory material |
| CN100396643C (en) * | 2006-08-04 | 2008-06-25 | 郑州纪翔耐材股份有限公司 | Novel moulded light carbon brick and its producing method |
| CN101357849B (en) * | 2007-08-03 | 2011-07-27 | 上海盛江特种耐火材料厂 | Improved carbonaceous mud for patching blast furnace hearth |
| CN102040384A (en) * | 2009-10-19 | 2011-05-04 | 李健伟 | High-conductivity high-corrosion-resistance ultra-micro-pore carbon block |
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Denomination of invention: High thermal conductivity ramming material Effective date of registration: 20221130 Granted publication date: 20131002 Pledgee: Zhengzhou Branch of Zhongyuan Bank Co.,Ltd. Pledgor: HENAN CROSSING OCEAN NEW MATERIALS TECHNOLOGY CO.,LTD. Registration number: Y2022980023619 |
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