CN106011383A - Processing method of steel-making hollow covering agent with ultra-light weight and low volume density - Google Patents
Processing method of steel-making hollow covering agent with ultra-light weight and low volume density Download PDFInfo
- Publication number
- CN106011383A CN106011383A CN201610530713.8A CN201610530713A CN106011383A CN 106011383 A CN106011383 A CN 106011383A CN 201610530713 A CN201610530713 A CN 201610530713A CN 106011383 A CN106011383 A CN 106011383A
- Authority
- CN
- China
- Prior art keywords
- processing method
- steel
- coverture
- hollow
- banburying
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a processing method of a steel-making hollow covering agent with ultra-light weight and low volume density. The processing method comprises the following steps of: step I, selecting raw materials of calcium aluminate refining slags as raw materials for producing the covering agent; step II, putting the raw materials into a heating furnace for heating so that the raw materials are melted; step III, performing spheroidization on the melted solution; step IV, cooling the products after spheroidization to room temperature; step V, performing screening so as to obtain hollow granular products; and step VI, packaging the hollow granular products. The processing method of the steel-making hollow covering agent with ultra-light weight and low volume density, provided by the invention, has the advantages that the packing density of the covering agent is greatly reduced, the packing density is smaller than 0.8 gram per cubic centimeter, and the heat preservation effect is improved.
Description
Technical field
The present invention relates to coverture technical field, particularly relate to a kind of Ultralight low body banburying steel and use
The processing method of hollow coverture.
Background technology
In metallurgy industry, in order to steel ladle insulation and minimizing surface oxidation, cover at molten metal
The covering material on surface is coverture.Coverture has two kinds: thermal-insulating covering agent and exothermic shield.
Present stage a part of coverture in metallurgy industry is to utilize preliminary melting type calcium aluminate refining slag
Bulk slag through being broken into little granule, as the thermal-insulating covering agent of molten steel, used at present
Coverture has the disadvantage in that packing density is relatively big, and heat insulation effect is poor.
Summary of the invention
The invention aims to solve shortcoming present in prior art, and the one proposed
The Ultralight low body banburying steel processing method of hollow coverture.
To achieve these goals, present invention employs following technical scheme:
A kind of Ultralight low body banburying steel processing method of hollow coverture, it is characterised in that bag
Include following steps:
Step one, select calcium aluminate refining slag raw material as produce this coverture former material
Material；
Step 2, raw material is put into heating furnace carries out heating make it melt；
Step 3, the solution melted is carried out spheroidising；
Product after step 4, nodularization carries out being cooled to room temperature；
Step 5, screening obtain hollow bead shape product；
Step 6, hollow bead shape product is packed.
Preferably, electric arc furnace is used at heating furnace described in step 2.
Preferably, using high temperature kiln at heating furnace described in step 2, it uses coal gas, sky
So gas or oil are as heating energy source.
Preferably, the blow gun of corresponding cooperation is set in the lower section of the converter nose of described heating furnace,
Blow gun connects high-pressure air source by pressure piping, and pressure-air is blown out by blow gun, to fusing
Calcium aluminate refining slag carries out nodularization.
Preferably, described blow gun is flat-shaped steel pipe.
Preferably, when blowing ball, air pressure is 2-15Kg/cm2, described blow gun is arranged under converter nose
At side 10-30cm, blow gun and converter nose angle are 10 °-75 °.
Preferably, the product after the nodularization in step 4 carries out natural air drying cooling.
It is an advantage of the current invention that: a kind of Ultralight low body banburying steel provided by the present invention is empty
The processing method of heart coverture, substantially reduces the packing density of coverture, and its packing density is little
In 0.8 gram every cubic centimetre, improve heat insulation effect.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with
Embodiment, is further elaborated to the present invention.Should be appreciated that tool described herein
Body embodiment only in order to explain the present invention, is not intended to limit the present invention.
A kind of Ultralight low body banburying steel processing method of hollow coverture that the present invention provides,
Comprise the following steps:
Step one, select calcium aluminate refining slag raw material as produce this coverture former material
Material；
Step 2, raw material is put into heating furnace carries out heating make it melt；
Described heating furnace uses electric arc furnace or high temperature kiln, utilizes electric arc to produce when using electric arc furnace
Temperature material is melted；When using high temperature kiln, it uses coal gas, natural gas or oil to make
For heating energy source.
Step 3, to fusing calcium aluminate refining slag solution carry out spheroidising.In described heating
The lower section of the converter nose of stove arranges the blow gun of corresponding cooperation, and blow gun is flat-shaped steel pipe, blow gun
Being arranged on below converter nose at 10-30cm, this programme is preferably 20cm, blow gun and converter nose angle
Being 10 °-75 °, this programme is preferably 25 °.Blow gun connects high-pressure air source by pressure piping, high
Pressure air is blown out by blow gun, the calcium aluminate refining slag of fusing is carried out nodularization, air when blowing ball
Pressure is 2-15Kg/cm2, this programme is preferably 3Kg/cm2.When calcium aluminate refining slag is the most molten
After change, in fusing stove, pour out solution, blow and fuse liquid stream stock by compressed air, compressed-air actuated
Under effect, liquation is blown to ball.
Product after step 4, nodularization carries out natural air drying cooling.
Step 5, screening obtain hollow bead shape product, and the spheroid screening after cooling obtains various
Varigrained hollow bead, the packing density of obtained hollow ball is less than 0.8 gram every cube
Centimetre qualified products.
Step 6, hollow bead shape product is packed.
Claims (7)
1. a Ultralight low body banburying steel processing method for hollow coverture, its feature exists
In comprising the following steps:
Step one, select calcium aluminate refining slag raw material as produce this coverture former material
Material；
Step 2, raw material is put into heating furnace carries out heating make it melt；
Step 3, the solution melted is carried out spheroidising；
Product after step 4, nodularization carries out being cooled to room temperature；
Step 5, screening obtain hollow bead shape product；
Step 6, hollow bead shape product is packed.
A kind of Ultralight low body hollow coverture of banburying steel the most according to claim 1
Processing method, it is characterised in that: heating furnace described in step 2 use electric arc furnace.
A kind of Ultralight the most according to claim 1 low body banburying steel is with hollow coverture
Processing method, it is characterised in that: using high temperature kiln at heating furnace described in step 2, it makes
With coal gas, natural gas or oil as heating energy source.
A kind of Ultralight low body hollow coverture of banburying steel the most according to claim 1
Processing method, it is characterised in that: arrange corresponding in the lower section of the converter nose of described heating furnace
The blow gun coordinated, blow gun connects high-pressure air source by pressure piping, and pressure-air is blown by blow gun
Go out, the calcium aluminate refining slag of fusing is carried out nodularization.
A kind of Ultralight low body hollow coverture of banburying steel the most according to claim 4
Processing method, it is characterised in that: described blow gun is flat-shaped steel pipe.
A kind of Ultralight low body hollow coverture of banburying steel the most according to claim 4
Processing method, it is characterised in that: when blowing ball, air pressure is 2-15Kg/cm2, described blow gun
Being arranged on below converter nose at 10-30cm, blow gun and converter nose angle are 10 °-75 °.
A kind of Ultralight low body hollow coverture of banburying steel the most according to claim 1
Processing method, it is characterised in that: it is dry and cold that the product after nodularization in step 4 carries out natural wind
But.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530713.8A CN106011383A (en) | 2016-07-06 | 2016-07-06 | Processing method of steel-making hollow covering agent with ultra-light weight and low volume density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530713.8A CN106011383A (en) | 2016-07-06 | 2016-07-06 | Processing method of steel-making hollow covering agent with ultra-light weight and low volume density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011383A true CN106011383A (en) | 2016-10-12 |
Family
ID=57107714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530713.8A Pending CN106011383A (en) | 2016-07-06 | 2016-07-06 | Processing method of steel-making hollow covering agent with ultra-light weight and low volume density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011383A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144432A (en) * | 2019-07-01 | 2019-08-20 | 登封市少林刚玉有限公司 | The processing method of the hollow coverture of the low volume density steel-making of Ultralight and hollow coverture |
| CN111041155A (en) * | 2019-12-23 | 2020-04-21 | 山东钢铁股份有限公司 | Medium-carbon alkaline molten steel heat-preservation covering agent and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1660520A (en) * | 2004-02-26 | 2005-08-31 | 宝山钢铁股份有限公司 | Covering agent for pouring basket in high alkalinity |
| CN1970196A (en) * | 2006-12-06 | 2007-05-30 | 上海盛宝钢铁冶金炉料有限公司 | High basicity tundish cover agent and its production method |
| CN1986411A (en) * | 2005-12-22 | 2007-06-27 | 宝山钢铁股份有限公司 | Artificial synthesizing process for calcium aluminate |
| CN102233413A (en) * | 2011-06-27 | 2011-11-09 | 河南通宇冶材集团有限公司 | Ultra-pure steel corrosion-free type covering agent and production method thereof |
| CN104831006A (en) * | 2015-03-06 | 2015-08-12 | 江苏嘉耐高温材料有限公司 | Method of recycling refining waste residue for producing molten steel covering agent |
-
2016
- 2016-07-06 CN CN201610530713.8A patent/CN106011383A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1660520A (en) * | 2004-02-26 | 2005-08-31 | 宝山钢铁股份有限公司 | Covering agent for pouring basket in high alkalinity |
| CN1986411A (en) * | 2005-12-22 | 2007-06-27 | 宝山钢铁股份有限公司 | Artificial synthesizing process for calcium aluminate |
| CN1970196A (en) * | 2006-12-06 | 2007-05-30 | 上海盛宝钢铁冶金炉料有限公司 | High basicity tundish cover agent and its production method |
| CN102233413A (en) * | 2011-06-27 | 2011-11-09 | 河南通宇冶材集团有限公司 | Ultra-pure steel corrosion-free type covering agent and production method thereof |
| CN104831006A (en) * | 2015-03-06 | 2015-08-12 | 江苏嘉耐高温材料有限公司 | Method of recycling refining waste residue for producing molten steel covering agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144432A (en) * | 2019-07-01 | 2019-08-20 | 登封市少林刚玉有限公司 | The processing method of the hollow coverture of the low volume density steel-making of Ultralight and hollow coverture |
| CN111041155A (en) * | 2019-12-23 | 2020-04-21 | 山东钢铁股份有限公司 | Medium-carbon alkaline molten steel heat-preservation covering agent and preparation method thereof |
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Application publication date: 20161012 |