CN1074635A - Dolomite matter continuous casting tundish coating - Google Patents
Dolomite matter continuous casting tundish coating Download PDFInfo
- Publication number
- CN1074635A CN1074635A CN 93110431 CN93110431A CN1074635A CN 1074635 A CN1074635 A CN 1074635A CN 93110431 CN93110431 CN 93110431 CN 93110431 A CN93110431 A CN 93110431A CN 1074635 A CN1074635 A CN 1074635A
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- CN
- China
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- dolomite
- described tundish
- continuous casting
- coating
- raw material
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Abstract
The present invention is a dolomite matter continuous casting tundish coating, be raw material directly with the dolomite raw ore, save calcination process, hold concurrently with other several raw materials such as fettling magnesite grain, chrome ore stone flour, kaolin, through raw material screening, chemical examination, fragmentation, screening particle, batching, ball milling, batching, batch mixing, detection, packing form again.Use this coating, cleaning molten steel, energy savings effect are arranged.
Description
The present invention relates to a kind of dolomite matter continuous casting tundish coating, the key equipment-tundish that is suitable in the continuous casting steel machine new technology is done lining coating.
What adopt before this is magnesium chromium matter tundish paint.
The objective of the invention is provides a kind of novel diffusing shape particle powder compound for the continuous casting tundish.
The present invention is primary raw material with the dolomite, and adopts advanced prescription and production technology to realize above-mentioned purpose.
The present invention also has following function and benefit except that characteristics and using method with magnesium chromium continuous casting tundish coating:
1. the effect of cleaning molten steel is arranged.Contain 30.4% Cao in the dolomite, Cao helps desulfurization, dephosphorization and removes steel inclusion.
2. end production cost falls.Fettling magnesite grain raw material in the magnesium chromium matter continuous casting tundish coating, 320 yuan of valencys per ton transport to factory's (referring to inventor unit) and want 400 yuan, and the source of goods concentrate on Yingkou, Liaoning one band.And the dolomite feed distribution is very wide, and 15 yuan of valencys per ton are transported to also 30 yuan of less thaies of factory, so product cost reduces significantly.
3. energy savings.The dolomite continuous casting tundish coating directly adopts the dolomite raw ore to make raw material, compares with adopting fettling magnesite grain, because of saving calcination process, can save a large amount of energy.
The present invention directly adopts the former mining raw material of dolomite, and the weight of each composition and proportioning are:
| Material name | Weight (Kg) | Percentage (%) | Remarks |
| 1. dolomite particles | 50～60 | 50～60 | 1～5mm particle |
| 2. fettling magnesite grain | 15～20 | 15～20 | MgO content 〉=80% |
| 3. chrome ore stone flour | 15～17 | 15～17 | Cr 2O 3Content 〉=30% |
| 4. kaolin | 6～8 | 6～8 | |
| 5. sodium phosphate trimer | 3 | 3 | Add |
Each material proportional quantity is just adjusted by component content separately.
Preparation method of the present invention is as follows:
-with after the dolomite fragmentation, sieve into 1～3mm; Two kinds of particles of 3～5mm are waited to prepare burden;
-with magnesia, chrome ore, kaolin ball milling, powder to 150 order is waited to prepare burden.
-get two kinds of dolomite particles each half, get final product by prescription batching, batch mixing, packing.
The chemical analysis percentage % of coating of the present invention:
| Cao:17～20 | SiO 2:6～7 |
| Mgo:28～30 | FeO 3:2.5～3.5 |
| Cr 2O 3:6～8 | K 2O+Na 2O≤1.3 |
| Al 2O 3:4～5 | Caustic soda: 24～28 |
Using method of the present invention:
-coating to be measured on demand put into mixer, first dry blend 1～2 minute adds the water about 10% again, and wet mixing can be used after 4～5 minutes.
-smearing method is similar to the building construction white washed wall.Coating layer thickness is advisable with 30～40, and required thickness is even, and is rainproof after coating, antifreeze.
-baking: below 500 ℃ 1 hour; 500～1000 ℃ 30 minutes, do not cease fire in the bake process and lower the temperature.
Claims (7)
1, dolomite matter continuous casting tundish coating contains fettling magnesite grain, chrome ore stone flour, kaolin in the composition, it is characterized in that, has selected the dolomite raw material that helps desulfurization, dephosphorization and remove field trash in the molten steel in the composition for use.
2, by the described tundish paint of claim 1, it is characterized in that, contain 30.4% Cao in the dolomite raw material.
3, want 1 described tundish paint by right, it is characterized in that, the weight of all compositions and proportioning are:
4, by the described tundish paint of claim 3, it is characterized in that the dolomite particles granularity is 1～5mm, the Cr2O3 content in the chrome ore stone flour is more than or equal to 30%, and the MgO content in the fettling magnesite grain is more than or equal to 80%.
5,, it is characterized in that each material proportional quantity is just adjusted by component content separately by the described tundish paint of claim 4.
6, by the described tundish paint of claim 3 or 4 or 5, coating chemical analysis percentage is:
7, by the described tundish paint of claim 1, it is characterized in that preparation method is: after the dolomite fragmentation, sieve into two kinds of particles of 1～3mm, 3～5mm and wait to prepare burden; With magnesia, chrome ore, kaolin ball milling, be crushed to 150 orders and wait to prepare burden; Get two kinds of dolomite particles each half, by prescription batching, batch mixing, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110431 CN1074635A (en) | 1993-01-18 | 1993-01-18 | Dolomite matter continuous casting tundish coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110431 CN1074635A (en) | 1993-01-18 | 1993-01-18 | Dolomite matter continuous casting tundish coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1074635A true CN1074635A (en) | 1993-07-28 |
Family
ID=4988301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93110431 Pending CN1074635A (en) | 1993-01-18 | 1993-01-18 | Dolomite matter continuous casting tundish coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1074635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093448C (en) * | 2000-01-15 | 2002-10-30 | 浙江湖州红鹰企业集团有限公司 | Magnesium paint for tundish in conticasting |
| CN104556747A (en) * | 2014-09-24 | 2015-04-29 | 中国人民解放军92537部队 | Method for preparing ore product for ship reverse osmosis sea water desalination conditioning |
| CN106349135A (en) * | 2016-07-29 | 2017-01-25 | 濮阳宏业环保新材料股份有限公司 | Kaolin stabilizer capable of increasing stability of thiourea dioxide and application method of kaolin stabilizer |
-
1993
- 1993-01-18 CN CN 93110431 patent/CN1074635A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093448C (en) * | 2000-01-15 | 2002-10-30 | 浙江湖州红鹰企业集团有限公司 | Magnesium paint for tundish in conticasting |
| CN104556747A (en) * | 2014-09-24 | 2015-04-29 | 中国人民解放军92537部队 | Method for preparing ore product for ship reverse osmosis sea water desalination conditioning |
| CN106349135A (en) * | 2016-07-29 | 2017-01-25 | 濮阳宏业环保新材料股份有限公司 | Kaolin stabilizer capable of increasing stability of thiourea dioxide and application method of kaolin stabilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| CI01 | Correction of invention patent gazette |
Correction item: The patent application is deemed to be withdrawn Correct: delete False: B22D41/02 93110431.9 1993.07.28 Number: 48 Page: 215 Volume: 12 |
|
| ERR | Gazette correction |
Free format text: CORRECT: DEEMED WITHDRAWAL OF APPLICATION FOR PATENT |
|
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |