CN1994624A - Novel prescription of CSP diversion agent and preparation method thereof - Google Patents
Novel prescription of CSP diversion agent and preparation method thereof Download PDFInfo
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- CN1994624A CN1994624A CN 200610128471 CN200610128471A CN1994624A CN 1994624 A CN1994624 A CN 1994624A CN 200610128471 CN200610128471 CN 200610128471 CN 200610128471 A CN200610128471 A CN 200610128471A CN 1994624 A CN1994624 A CN 1994624A
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Abstract
The invention relates to a guide agent and relative preparation, used in CSP smelt factory, wherein it uses chromic sand, quartz sand, magnesium sand, feldspar sand, and graphite, to be screened, mixed and dried. Compared with present guide agent, it has better sinter degree, stable thickness, and better high-temperature resistance, etc. And the test proves that its steel pack self-open rate can reach 98-100%.
Description
Technical field
The invention belongs to the metallurgical auxiliary field, relate to the agent of a kind of steel-making continuous casting ladle draining, be specifically related to a kind of CSP drainage agent and preparation method thereof.
Background technology
CSP steel-making continuous casting production line is to introduce advanced continuous casting and rolling new technology, need fill the drainage agent at ladle nozzle.Quartz sand is adopted in the drainage agent that existing steel mill uses, aloxite, and graphite is made raw material, makes through mixed the stirring.Because simply reaching preparation technology, raw material mix falls behind, this drainage agent, mobile relatively poor, particle size differences is big, contain 1.2% moisture content, use in the CSP ladle, refining time is long, and self-opening rate is low, in 60-80%, often need manually to help drainage, influence CSP continuous casting and rolling continuous productive process and carry out continuously, can interrupt the continuous casting and rolling continuous productive process when serious.
Summary of the invention
The applicant is in the production and sales business activities of being engaged in metallurgical protective material for many years; organize the designer to domestic steel mill CSP production line through repeatedly the investigation; and listen to the suggestion of relevant steel mill and research institution; purpose is to develop a kind of CSP drainage agent; and improvement preparation method; can improve the ladle self-opening rate, satisfy the steel mill actual demand, overcome the defective of existing drainage agent.
The present invention realizes that the technical scheme that the invention task is taked is, existing drainage agent prescription and preparation technology are improved, develop a kind of CSP drainage agent, comprise that mainly following weight portion raw material processes: chromium sand 50-80%, quartz sand 10-35%, magnesia 5-20%, feldspathic sand 3-15%, graphite 0.5-3%.Wherein graphite can substitute with carbon black.
Above-mentioned raw materials can also adopt following preferred weight part: chromium sand 60-70%, quartz sand 20-30%, magnesia 10-15%, feldspathic sand 5-10%, graphite 1-2%.Wherein graphite can substitute with carbon black.
The present invention adopts following processing step to prepare CSP drainage agent: each raw material is sieved respectively by granularity requirements get---and each raw material is mixed to be stirred---dry moisture content---to drying back mixture regrading---finished product packing.
The present invention takes technique scheme, the raw material of existing drainage agent is formed improved, owing to adopt chromium sand to make base-material, Cr
2O
3Than great, anti-sintering degree is good, good fluidity, since the anti-etch of magnesia MgO, feldspathic sand K
2O and SiO
2Energy stable sintering layer thickness is with quartz sand SiO
2, graphite C matter can improve maintenance heatproof degree together jointly, improves flowability, significantly improves drainage effect, and the ladle self-opening rate reaches 98-100%.
Because preparation technology's method of the present invention; raw material and semi-finished product are looked over so as to check through screening; oven dry; made CSP drainage agent particle size differences is little; evenly; strict to granularity and moisture content, the user can directly be come into operation, and protects the smooth realization of pouring technology and variety steel refinery practice that reliable assurance is provided to big bag long nozzle.
The specific embodiment
The raw material prescription embodiment 1 of a kind of CSP drainage of the present invention agent comprises following weight portion raw material: chrome ore 79%, quartz sand 10%, magnesium ore in sand form 5%, feldspathic sand 3%, graphite 3%.
The raw material prescription embodiment 2 of a kind of CSP drainage of the present invention agent comprises following weight portion raw material: chrome ore 50%, quartz sand 35%, magnesium ore in sand form 10%, feldspathic sand 4.5%, graphite 0.5%.
The raw material prescription embodiment 3 of a kind of CSP drainage of the present invention agent comprises following weight portion raw material: chrome ore 50%, quartz sand 13%, magnesium ore in sand form 20%, feldspathic sand 15%, graphite 2%.
The raw material prescription embodiment 4 of a kind of CSP drainage of the present invention agent comprises following weight portion raw material: chrome ore 55%, quartz sand 20%, magnesium ore in sand form 14%, feldspathic sand 10%, graphite 1%.
The raw material prescription embodiment 5 of a kind of CSP drainage of the present invention agent comprises following weight portion raw material: chrome ore 60%, quartz sand 30%, magnesium ore in sand form 5%, feldspathic sand 4%, graphite 1%.
In technical solution of the present invention and the foregoing description prescription, wherein chrome ore is chosen import high-quality chromium sand, and purity contains Cr
2O
3＞45%, choose quartz sand purity and contain SiO
2＞96%, the magnesium ore in sand form contains MgO＞98%, and potassic feldspar contains K
2O＞9 contain SiO
2＞67%, graphite is chosen 290 standard medium-carbon graphites, also available in super carbon black make carbon raw material, graphite replaces.
In the step of preparation process of CSP drainage agent of the present invention, each raw material granularity requirement, wherein chromium sand 20 orders-40 order accounts for 20-25%, 40 orders-80 order accounts for 65-75%, 80 orders-100 order is less than 3%, and quartz sand 0.5mm-1mm is greater than 95%, and magnesia 0.5mm-1mm is greater than 95%, potassic feldspar 0.5mm-1.2mm is greater than 95%, medium-carbon graphite 290 standards; Require product granularity 20 orders-80 order more than 90% behind the regrading; Oven dry is dried in tower dryer, and moisture content requires less than 0.1%.
A kind of CSP drainage agent of the present invention reaches the proportioning of embodiment through the prepared a plurality of samples of CSP drainage agent of processing step of the present invention in each raw material ratio range in technical scheme, through trying out at the preliminary examination successively of domestic nine tame steel mills such as Taiyuan Iron and Steel Co., Baogang, Handan Iron and Steel Co, pilot scale, batch, update perfect, constantly enlarge and try out, steel mill on probation generally reflects well; CSP ladle self-opening rate obviously improves, and as Handan Iron and Steel Co three factory's one-time continuous 54 stoves on probation, the ladle self-opening rate reaches 98.15%, and the ladle self-opening rate reaches 100% in class of Baogang process on probation continuously; The big drainage agent producer of wrapping need not baking, can directly come into operation, and has avoided the oven dry of invar factory no drying equipment or careless mistake to cause damage, and protects the smooth realization of pouring technology and variety steel refinery practice that reliable assurance is provided to big bag long nozzle.
This CSP drainage agent expansion of the present invention promotes the use of in the common continuous casting process of steel mill, also can obtain good effect, proves that the present invention succeeds.
Claims (9)
1, a kind of CSP drainage agent, raw material is characterized in that mainly adopting following weight portion raw material: chromium sand 50-80%, quartz sand 10-35%, magnesia 5-20%, feldspathic sand 3-15%, graphite 0.5-3% through being prepared from.
2,, it is characterized in that described each raw material adopts following preferred weight part: chromium sand 60-70%, quartz sand 20-30%, magnesia 10-15%, feldspathic sand 5-10%, graphite 1-2% according to a kind of CSP drainage agent of claim 1.
3,, it is characterized in that described each raw material adopts following weight portion: chrome ore 79%, quartz sand 10%, magnesium ore in sand form 5%, feldspathic sand 3%, graphite 3% according to a kind of CSP drainage agent of claim 1.
4,, it is characterized in that described each raw material adopts following weight portion: chrome ore 50%, quartz sand 35%, magnesium ore in sand form 10%, feldspathic sand 4.5%, graphite 0.5% according to a kind of CSP drainage agent of claim 1.
5,, it is characterized in that described each raw material adopts following weight portion: chrome ore 50%, quartz sand 13%, magnesium ore in sand form 20%, feldspathic sand 15%, graphite 2% according to a kind of CSP drainage agent of claim 1.
6,, it is characterized in that described each raw material adopts following weight portion: chrome ore 55%, quartz sand 20%, magnesium ore in sand form 14%, feldspathic sand 10%, graphite 1% according to a kind of CSP drainage agent of claim 1.
7,, it is characterized in that described each raw material adopts following weight portion: chrome ore 60%, quartz sand 30%, magnesium ore in sand form 5%, feldspathic sand 4%, graphite 1% according to a kind of CSP drainage agent of claim 1.
8,, it is characterized in that the also available carbon black of described graphite replaces according to any CSP drainage agent among the claim 1-7.
9, according to the preparation method of any CSP drainage agent described in the claim 1-7, it is characterized in that adopting following processing step: each raw material is sieved respectively by granularity requirements get---each raw material is mixed to be stirred---dry moisture content---to drying back mixture regrading---finished product packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610128471 CN1994624A (en) | 2006-12-20 | 2006-12-20 | Novel prescription of CSP diversion agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610128471 CN1994624A (en) | 2006-12-20 | 2006-12-20 | Novel prescription of CSP diversion agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1994624A true CN1994624A (en) | 2007-07-11 |
Family
ID=38249874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610128471 Pending CN1994624A (en) | 2006-12-20 | 2006-12-20 | Novel prescription of CSP diversion agent and preparation method thereof |
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| CN (1) | CN1994624A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972847A (en) * | 2010-09-21 | 2011-02-16 | 上海盛江特种耐火材料有限公司 | Chrome drainage sand for special steel and preparation technology thereof |
| CN102001854A (en) * | 2010-12-01 | 2011-04-06 | 西峡龙成冶金材料有限公司 | Special steel ladle draining sand for stainless steel and production process thereof |
| CN102249709A (en) * | 2011-05-19 | 2011-11-23 | 攀枝花市银江金勇工贸有限责任公司 | Chrome fluxing agent for steel ladles and preparation method thereof |
| CN102248155A (en) * | 2011-07-28 | 2011-11-23 | 西峡县隆达耐材有限责任公司 | Refining drainage agent and preparation method thereof |
| CN103506614A (en) * | 2013-10-17 | 2014-01-15 | 河南通宇冶材集团有限公司 | Drainage agent special for high manganese steel |
| CN103624246A (en) * | 2012-08-14 | 2014-03-12 | 宝钢特钢有限公司 | Ladle filler sand for continuous-casting high aluminum steel and use method thereof |
| CN104557090A (en) * | 2015-01-12 | 2015-04-29 | 河南通宇冶材集团有限公司 | Process for producing steel ladle drainage agent |
| CN104827019A (en) * | 2015-04-21 | 2015-08-12 | 西峡县新越冶金材料开发有限公司 | Ladle automatic drainage device |
| CN106242600A (en) * | 2016-08-09 | 2016-12-21 | 武汉钢铁股份有限公司 | A kind of tapping hole filler and fill method thereof |
-
2006
- 2006-12-20 CN CN 200610128471 patent/CN1994624A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972847A (en) * | 2010-09-21 | 2011-02-16 | 上海盛江特种耐火材料有限公司 | Chrome drainage sand for special steel and preparation technology thereof |
| CN101972847B (en) * | 2010-09-21 | 2012-11-21 | 上海盛江特种耐火材料有限公司 | Chrome drainage sand for special steel and preparation technology thereof |
| CN102001854A (en) * | 2010-12-01 | 2011-04-06 | 西峡龙成冶金材料有限公司 | Special steel ladle draining sand for stainless steel and production process thereof |
| CN102001854B (en) * | 2010-12-01 | 2013-06-12 | 西峡龙成冶金材料有限公司 | Special steel ladle draining sand for stainless steel and production process thereof |
| CN102249709A (en) * | 2011-05-19 | 2011-11-23 | 攀枝花市银江金勇工贸有限责任公司 | Chrome fluxing agent for steel ladles and preparation method thereof |
| CN102249709B (en) * | 2011-05-19 | 2013-09-11 | 攀枝花市银江金勇工贸有限责任公司 | Chrome fluxing agent for steel ladles and preparation method thereof |
| CN102248155A (en) * | 2011-07-28 | 2011-11-23 | 西峡县隆达耐材有限责任公司 | Refining drainage agent and preparation method thereof |
| CN103624246A (en) * | 2012-08-14 | 2014-03-12 | 宝钢特钢有限公司 | Ladle filler sand for continuous-casting high aluminum steel and use method thereof |
| CN103624246B (en) * | 2012-08-14 | 2016-12-21 | 宝钢特钢有限公司 | A kind of continuous casting high-aluminum steel stuffing sand and using method thereof |
| CN103506614A (en) * | 2013-10-17 | 2014-01-15 | 河南通宇冶材集团有限公司 | Drainage agent special for high manganese steel |
| CN103506614B (en) * | 2013-10-17 | 2015-11-18 | 河南通宇冶材集团有限公司 | Drainage agent special for high manganese steel |
| CN104557090A (en) * | 2015-01-12 | 2015-04-29 | 河南通宇冶材集团有限公司 | Process for producing steel ladle drainage agent |
| CN105906350A (en) * | 2015-01-12 | 2016-08-31 | 河南通宇冶材集团有限公司 | Steel ladle drainage agent |
| CN105906350B (en) * | 2015-01-12 | 2018-05-11 | 河南通宇冶材集团有限公司 | A kind of steel ladle drainage agent |
| CN104827019A (en) * | 2015-04-21 | 2015-08-12 | 西峡县新越冶金材料开发有限公司 | Ladle automatic drainage device |
| CN106242600A (en) * | 2016-08-09 | 2016-12-21 | 武汉钢铁股份有限公司 | A kind of tapping hole filler and fill method thereof |
| CN106242600B (en) * | 2016-08-09 | 2019-10-25 | 武汉钢铁有限公司 | A kind of tapping hole filler and its fill method |
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Open date: 20070711 |