CN102277020A - Spraying material for pneumatic slag skimming equipment of converter - Google Patents
Spraying material for pneumatic slag skimming equipment of converter Download PDFInfo
- Publication number
- CN102277020A CN102277020A CN2011102055819A CN201110205581A CN102277020A CN 102277020 A CN102277020 A CN 102277020A CN 2011102055819 A CN2011102055819 A CN 2011102055819A CN 201110205581 A CN201110205581 A CN 201110205581A CN 102277020 A CN102277020 A CN 102277020A
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- slag
- converter
- pushing
- spraying material
- pneumatic
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Abstract
The invention relates to a spraying material for pneumatic slag skimming equipment of a converter. The spraying material is prepared from 5 to 30 volume percent of CaCO3 and 70 to 95 volume percent of H2O. An application method comprises the following step of: spraying the spraying material to a sprayer and a rotating arm of the pneumatic slag skimming equipment at 20 to 25 minutes before steel tapping of the converter. The spraying material has the advantages of simple formula and low cost, the problem that steel slag is easy to stick on the sprayer and the rotating arm is solved effectively, and the effect is obvious.
Description
Technical field
The present invention relates to a kind of spray material that is used on the converter gas pneumatic slag equipment, belong to the field of steel-making that metallurgical industry is produced.
Background technology
In order to reduce the following quantity of slag of converter tapping, improve the pushing off the slag effect of converter tapping, invented multiple pushing off the slag method both at home and abroad, as, slag-blocking ball method, floating plug etc.From the development of pushing off the slag trend, use tangible pushing off the slag thing pushing off the slag such as slag-blocking ball, the materials consumption height, the pushing off the slag effect is undesirable.The pushing off the slag method is just progressively from the invisible pushing off the slag method development of tangible pushing off the slag normal direction, as pneumatic pushing off the slag method, electromagnetic interference method etc.These pushing off the slag method major advantages are: level of automation height, low, the molten steel recovery rate height of pushing off the slag expense.The 120t of Baogang Steel Plant converter is adopted pneumatic pushing off the slag equipment in August, 2009, and working cost is low, and tapping the time can control time quantity of slag and also can accurately detect slag thickness, so smelting cost is low, and steel quality is good.
During pushing off the slag, pneumatic pushing off the slag equipment rotates pivot arm and prevents that at the nozzle place of floating plug end inject high pressure gas slag from flowing out.
In using pneumatic pushing off the slag equipment pushing off the slag process, the situation of sticking shower nozzle of slag and pivot arm has appearred.The sticking shower nozzle of slag has then stopped up the nozzle of shower nozzle, influences the pushing off the slag effect thereby high pressure gas can not be sprayed smoothly, and slag sticks to the susceptibility that then influences pivot arm on the pivot arm and is unfavorable for that floating plug is in the optimum position.In addition, pneumatic pushing off the slag equipment is after every stove tapping is used, and the workman will take time and handle the slag that is bonded on shower nozzle and the pivot arm, and workman's efficiency is low, intensity is big.
Summary of the invention
The object of the present invention is to provide on a kind of shower nozzle and pivot arm that is sprayed on pneumatic pushing off the slag equipment, can effectively solve the problem of easy steel bonding slag on shower nozzle and the pivot arm, thereby improved work efficiency of workers, reduced the spray material on the converter gas pneumatic slag equipment of being used for of working strength of workers.
The objective of the invention is to realize in the following manner:
Being used for the shower nozzle of converter gas pneumatic slag equipment and the spray material on the pivot arm, is to be the CaCO of 5-30% by volumn concentration
3With volumn concentration be the H of 70-95%
2O makes.
The application method of spray material of the present invention is: 20-25min is sprayed onto spray material on the shower nozzle and pivot arm of pneumatic pushing off the slag equipment before converter tapping.
Advantage of the present invention is: prescription is simple, material therefor is cheap, efficiently solves the problem of easy steel bonding slag on shower nozzle and the pivot arm, and the effect of generation is fairly obvious.
Embodiment
Workman 20-25min before every stove tapping is sprayed onto spray material on the shower nozzle and pivot arm of pneumatic pushing off the slag equipment, on result of use, slag seldom is bonded on shower nozzle and the pivot arm, and the operative employee does not need to take time to handle slag yet, thereby has improved work efficiency of workers.
After adopting this spray material, pneumatic pushing off the slag equipment can use 200 stoves above and do not need cleaning continuously.
Claims (2)
1. spray material that is used on the converter gas pneumatic slag equipment, it is characterized in that: spray material is to be the CaCO of 5-30% by volumn concentration
3With volumn concentration be the H of 70-95%
2O makes.
2. the application method of a spray material according to claim 1, it is characterized in that: 20-25min is sprayed onto spray material on the shower nozzle and pivot arm of pneumatic pushing off the slag equipment before converter tapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102055819A CN102277020A (en) | 2011-07-15 | 2011-07-15 | Spraying material for pneumatic slag skimming equipment of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102055819A CN102277020A (en) | 2011-07-15 | 2011-07-15 | Spraying material for pneumatic slag skimming equipment of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102277020A true CN102277020A (en) | 2011-12-14 |
Family
ID=45102774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102055819A Pending CN102277020A (en) | 2011-07-15 | 2011-07-15 | Spraying material for pneumatic slag skimming equipment of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102277020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255980A (en) * | 2019-05-24 | 2019-09-20 | 郑州金利窑炉工程有限公司 | A kind of calcareous slag adhesion spray paint for converter mouth |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429677A (en) * | 2001-12-29 | 2003-07-16 | 宝山钢铁股份有限公司 | Calcium oxide paint for preventing slag adhearing on steel making container |
| CN1803345A (en) * | 2005-01-10 | 2006-07-19 | 盛富春 | Special coating for slag harrow for removing slag of iron and steel |
| CN201713538U (en) * | 2010-04-27 | 2011-01-19 | 杭州浙大精益机电技术工程有限公司 | Pneumatic slag-blockage slag adhesion prevention device of converters |
-
2011
- 2011-07-15 CN CN2011102055819A patent/CN102277020A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429677A (en) * | 2001-12-29 | 2003-07-16 | 宝山钢铁股份有限公司 | Calcium oxide paint for preventing slag adhearing on steel making container |
| CN1803345A (en) * | 2005-01-10 | 2006-07-19 | 盛富春 | Special coating for slag harrow for removing slag of iron and steel |
| CN201713538U (en) * | 2010-04-27 | 2011-01-19 | 杭州浙大精益机电技术工程有限公司 | Pneumatic slag-blockage slag adhesion prevention device of converters |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255980A (en) * | 2019-05-24 | 2019-09-20 | 郑州金利窑炉工程有限公司 | A kind of calcareous slag adhesion spray paint for converter mouth |
| CN110255980B (en) * | 2019-05-24 | 2021-11-23 | 郑州金利窑炉工程有限公司 | Calcareous anti-sticking slag spray coating for converter mouth |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |