CN106269158A - A kind of production method making steel covering slag - Google Patents
A kind of production method making steel covering slag Download PDFInfo
- Publication number
- CN106269158A CN106269158A CN201610722044.4A CN201610722044A CN106269158A CN 106269158 A CN106269158 A CN 106269158A CN 201610722044 A CN201610722044 A CN 201610722044A CN 106269158 A CN106269158 A CN 106269158A
- Authority
- CN
- China
- Prior art keywords
- covering slag
- production method
- fine grinding
- paraffin
- method making
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
Abstract
The invention discloses a kind of production method making steel covering slag, main by the inspection of raw and process materials, dispensing, stirring homogenizing, calcining, fine grinding, stirring, filter, spray for dust suppression, it is dried, cooling, testing sequence forms, in described fine milling step, its abrasive body is cylindrical, after fine grinding starts 1～1.5 time add appropriate paraffin, the present invention every batch materials milling time is less than 1 hour, than prior art shorten 0.5 little time more than, calculated by one day 24 hours, the fine grinding yield of 50% can be improved every day, grinding efficiency is high, and material grain type is uniform, covering slag good product quality, compared with prior art, production cost can reduce by more than 10%, there is preferable practical value.
Description
Technical field
The invention belongs to steelmaking technical field, be specifically related to a kind of production method making steel covering slag.
Background technology
Covering slag is a kind of slag charge for constantly adding to crystallizer molten steel surface in molten steel casting process, its effect
As follows:
1, adiabatic heat-insulation prevents heat radiation；
2, separate air, prevent the oxygen in air from entering molten steel generation secondary oxidation, affect the quality of steel；
3, absorb dissolving from molten steel, float to the field trash of slag interface, cleaning molten steel
4, there is one layer of slag film to play lubrication between crystallizer wall and solidified shell, reduce resistance of billet withdrawal, prevent scull and copper coin
Bonding；
5, the air gap between filling green shell and crystallizer, improves Billet.
Existing covering slag production technology is mainly: the calcining fine grinding of inspection of raw and process materials proportioning homogenizing is stirred
Mix filtration spray for dust suppression and be dried cooling inspection finished product packing.In existing fine grinding technology, due to existing ball
The restriction of grinding process, its every batch materials fine grinding time typically needs more than 1.5 hours, during fine grinding, temperature of charge oxygen high, easy
Change, Qualified Products Rate and production efficiency is relatively low, energy consumption is high.
Summary of the invention
For solving prior art has problems, the invention provides a kind of production method making steel covering slag, can shorten
The fine grinding time, improve grinding efficiency, improve product quality, reduce production cost.
Technical scheme is as described below:
A kind of production method making steel covering slag, mainly by the inspection of raw and process materials, dispensing, stirring homogenizing, calcining, fine grinding, stirring, mistake
Filter, spray for dust suppression, be dried, cooling, testing sequence composition, in described fine milling step, its abrasive body be cylinder, in fine grinding
After beginning 1～1.5 time add appropriate paraffin.
Further, the trade mark of described paraffin is No. 52 or No. 54, and paraffin addition is the 1～3% of grinding material quality.
Further, the described a diameter of ∮ of cylindrical mill body 20～∮ 30mm, length 100～200mm.
In the present invention, owing to adding paraffin during fine grinding, paraffin can form protecting film, isolation on material surface
Material contacts with the oxygen in air, it is to avoid material aoxidizes in process of lapping, such that it is able to improve product quality, and due to
The boiling point of paraffin is 300-550 DEG C, in steelmaking process, gets final product vaporization combustion with steel contacts, will not produce steel quality
Impact.Further, since the addition of paraffin, covering slag lubricity in process of lapping and mobility can be improved, thus reduce
Milling time.It addition, use the abrasive body of cylinder in the present invention, making process of lapping is linear grinding, and its grinding efficiency is high, and
Material grain type is uniform, can promote the product quality of covering slag further.
Advantages of the present invention and beneficial effect:
In the present invention, every batch materials milling time be less than 1 hour, than prior art shorten 0.5 little time more than, by one day 24 hours
Calculating, can improve the fine grinding yield of 50% every day, grinding efficiency is high, and material grain type is uniform, covering slag good product quality, with existing
Having technology to compare, production cost can reduce by more than 10%, has preferable practical value.
Detailed description of the invention
Present invention below is described in further detail, but should not be only limitted to regard to this scope being interpreted as theme of the present invention
Below example, without departing from the idea case in the present invention described above, all according to ordinary skill knowledge with usual
Various amendments that means are made, replace and change, be included within the scope of the present invention.
Embodiment one
A kind of production method making steel covering slag, mainly by the inspection of raw and process materials, dispensing, stirring homogenizing, calcining, fine grinding, stirring, mistake
Filter, spray for dust suppression, be dried, cooling, testing sequence composition, in described fine milling step, its abrasive body be cylinder, in fine grinding
After beginning 1～1.5 time add appropriate paraffin
Further, the trade mark of described paraffin is No. 52 or No. 54, and paraffin addition is the 1～3% of grinding material quality.
Further, the described a diameter of ∮ of cylindrical mill body 20～∮ 30mm, length 100～200mm.
In the present invention, owing to adding paraffin during fine grinding, paraffin can form protecting film on material surface, permissible
Isolation material contacts with the oxygen in air, it is to avoid material aoxidizes in process of lapping, such that it is able to improve product quality, and
Owing to the boiling point of paraffin is 300-550 DEG C, in steelmaking process, get final product vaporization combustion with steel contacts, will not be to steel quality
Produce impact.Further, since the addition of paraffin, covering slag can be improved in process of lapping lubricity and mobility, thus reduce
Milling time.It addition, use the abrasive body of cylinder in the present invention, making process of lapping is linear grinding, and its grinding efficiency is high, and
Material grain type is uniform, can promote the product quality of covering slag further.
Claims (3)
1. make steel the production method of covering slag, mainly by the inspection of raw and process materials, dispensing, stirring homogenizing, calcining, fine grinding, stirring,
Filtration, spray for dust suppression, be dried, cooling, testing sequence composition, it is characterised in that in described fine milling step, its abrasive body is cylinder
Shape, after fine grinding starts 1～1.5 time add appropriate paraffin.
A kind of production method making steel covering slag the most according to claim 1, it is characterised in that the trade mark of described paraffin is
No. 52 or No. 54, paraffin addition is the 1～3% of grinding material quality.
A kind of production method making steel covering slag the most according to claim 1, it is characterised in that described cylindrical mill body
A diameter of ∮ 20～∮ 30mm, length 100～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722044.4A CN106269158A (en) | 2016-08-25 | 2016-08-25 | A kind of production method making steel covering slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722044.4A CN106269158A (en) | 2016-08-25 | 2016-08-25 | A kind of production method making steel covering slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106269158A true CN106269158A (en) | 2017-01-04 |
Family
ID=57616441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610722044.4A Pending CN106269158A (en) | 2016-08-25 | 2016-08-25 | A kind of production method making steel covering slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269158A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030075012A1 (en) * | 2001-03-29 | 2003-04-24 | Gerhard Knunz | Method of producing hard metal grade powder |
| CN202290207U (en) * | 2011-10-25 | 2012-07-04 | 山东盛大矿业股份有限公司 | Ore grinding medium of two-section ball mill |
| CN102554161A (en) * | 2011-12-31 | 2012-07-11 | 西峡龙成冶金材料有限公司 | Covering slag of square billet continuous casting crystallizer and production method thereof |
| CN102990025A (en) * | 2011-09-09 | 2013-03-27 | 河北联合大学 | Medium carbon steel casting powder for H-section steel continuous casting |
| CN103894568A (en) * | 2014-03-10 | 2014-07-02 | 洛阳市科丰冶金新材料（集团）有限公司 | Casting powder |
-
2016
- 2016-08-25 CN CN201610722044.4A patent/CN106269158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030075012A1 (en) * | 2001-03-29 | 2003-04-24 | Gerhard Knunz | Method of producing hard metal grade powder |
| CN102990025A (en) * | 2011-09-09 | 2013-03-27 | 河北联合大学 | Medium carbon steel casting powder for H-section steel continuous casting |
| CN202290207U (en) * | 2011-10-25 | 2012-07-04 | 山东盛大矿业股份有限公司 | Ore grinding medium of two-section ball mill |
| CN102554161A (en) * | 2011-12-31 | 2012-07-11 | 西峡龙成冶金材料有限公司 | Covering slag of square billet continuous casting crystallizer and production method thereof |
| CN103894568A (en) * | 2014-03-10 | 2014-07-02 | 洛阳市科丰冶金新材料（集团）有限公司 | Casting powder |
Non-Patent Citations (1)
| Title |
|---|
| 李力等: "TaC含量对YG类稀土硬质合金性能的影响", 《重庆文理学院学报(自然科学版)》 * |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |