CN202450112U - Novel converter bottom blowing air supply element - Google Patents
Novel converter bottom blowing air supply element Download PDFInfo
- Publication number
- CN202450112U CN202450112U CN2011205448340U CN201120544834U CN202450112U CN 202450112 U CN202450112 U CN 202450112U CN 2011205448340 U CN2011205448340 U CN 2011205448340U CN 201120544834 U CN201120544834 U CN 201120544834U CN 202450112 U CN202450112 U CN 202450112U
- Authority
- CN
- China
- Prior art keywords
- gas circuit
- main gas
- air
- air chamber
- internal diameter
- 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.)
- Expired - Fee Related
Links
- 238000007664 blowing Methods 0.000 title claims abstract description 16
- 239000011819 refractory material Substances 0.000 claims abstract description 17
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 16
- 239000010959 steel Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002893 slag Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- 238000003723 Smelting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to a converter bottom blowing field, in particular to novel converter bottom blowing air feed component, including bundling pipe, refractory material, air chamber and intake pipe, the bundling pipe of evenly distributed more than one among the refractory material, bundling pipe one end links to each other with air chamber and intake pipe in proper order, its characterized in that, bundling pipe includes that a main gas circuit and many assist the gas circuit, and main gas circuit sets up between two parties, and the assistance gas circuit is 1-3 weeks in main gas circuit periphery align to grid, assist gas circuit quantity to be 10-15, and the internal diameter is 1-4mm, and main gas circuit internal diameter is 8-12 mm. The distributor is arranged in the air chamber, and 1-2 circles of air distribution holes are uniformly distributed on the distributor in the circumferential direction. Compared with the prior art, the beneficial effects of the utility model are that: 1) after slag splashing is finished, slag discharging effect near the gun body is obvious. 2) The bottom gun has good air permeability and small pressure loss, and has obvious effect of stirring the molten steel in the converter. 3) The service life of the bottom gun is obviously prolonged by 80 percent compared with the service life of the traditional cluster bottom gun.
Description
Technical field
The utility model relates to converter bottom blowing field, particularly a kind of novel converter bottom-blowing air feed element.
Background technology
Converter steelmaking adopts top bottom compositing blowing steelmaking technology to shorten the heat, and reduces w (%FeO) in the slag, improves the molten steel yield; The temperature and the composition of even molten steel; Make the molten steel reaction between carbon and oxygen be tending towards balanced more, effectively reduce oxygen content in steel, minimizing is mingled with; Reduce alloy consumption, remarkable in economical benefits.
Furnace bottom gas supply element structure is divided into boundling tubular type and slit.The constructional feature of boundling tubular type is the heat-resistance stainless steel pipe of uniform distribution some amount in refractory materials, stainless steel tube afterbody and air chamber welding.During use; Since the cooling effect of bottom blown gas, and the temperature difference is big between the refractory materials of the refractory temperatures of molten steel contact site and steel pipe contact site, because there is the multiple spot high temperature difference in the top layer; Make product surface form very big thermal stresses, cause the product surface refractory materials to be very easy to peel off.In addition because single bronchial flow is little, and distributes and relatively disperse,, hinder gas and get into molten steel, influence metallurgical effect so form slag blanket at the bottom blowing element upper surface easily when smelting.
The constructional feature of slit gas supply element is by forming with the concentric layer 2-3 concentric tubes of center blind pipe; All sleeve pipes link to each other with air chamber; The characteristics of slit gas supply element are that the many air flues of steel pipe are few, and the flow of bottom blown gas and bottom blown gas seem not enough to the cooling effect of peripheral refractory materials.The ability of the anti-molten steel infiltration of ring-shaped continuous slit is lower than approximate width and similar independent slit capillaceous in addition, thereby molten steel is soaked in the breather line more easily.The wellability of molten steel is big, makes the fusing of more steel pipe easily, and the probability that finally causes the gas supply element of this structure in use to stop up with bleed-out increases.
Summary of the invention
The purpose of the utility model provides a kind of novel converter bottom-blowing air feed element; Overcome the deficiency of prior art; Reduce the temperature difference of refractory materials, reduce the rate of peeling off of refractory materials, utilize divider to distribute the gas flow in main gas circuit and the auxilliary gas circuit; Optimize the smelting operation of converter, improve and blow the life-span again.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of novel converter bottom-blowing air feed element comprises bundle pipes, refractory materials, air chamber and inlet pipe, the bundle pipes of uniform distribution more than one in the refractory materials; Bundle pipes one end links to each other with inlet pipe with air chamber successively, and said bundle pipes comprises a main gas circuit and the auxilliary gas circuit of Duo Gen, and main gas circuit is provided with between two parties; Auxilliary gas circuit is in the peripheral evenly distributed 1-3 week of main gas circuit; Said auxilliary gas circuit quantity is the 10-15 root, and internal diameter is 1-4mm, and main gas circuit internal diameter is 8-12mm.
Be provided with divider in the said air chamber, divider is buckled in the exit of inlet pipe for bamboo hat shape, and around circumferential uniform distribution 1-2 circle air distribution hole, the dispersion angle of air distribution hole is 10-50 ° on the divider, and the air distribution hole diameter is 5-10mm, and air distribution hole quantity is 10-15.
Compared with prior art, the beneficial effect of the utility model is: after 1) spattering the slag end, the deslagging effect is obvious near the rifle body.2) good air permeability, the pressure-losses is little, and is obvious to molten steel mixing effect in the converter.3) significantly improve work-ing life, than traditional cluster type bottom-blowing air feed element life-span raising 80%.
Description of drawings
Fig. 1 is the utility model example structure synoptic diagram;
Fig. 2 is an air chamber part partial enlarged drawing among Fig. 1;
Fig. 3 is along A-A line sectional view among Fig. 1.
Among the figure: 1-assists gas circuit 2-master gas circuit 3-air chamber 4-divider 5-refractory materials 6-inlet pipe 7-air distribution hole
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing the utility model:
See Fig. 1, Fig. 2, Fig. 3; Be a kind of novel converter bottom-blowing air feed element of the utility model example structure synoptic diagram, be distributed with the bundle pipes of being made up of main gas circuit 2 and auxilliary gas circuit 1 in the refractory materials 5, main gas circuit 2 is provided with between two parties; Auxilliary gas circuit 1 is in the peripheral evenly distributed 1-3 week of main gas circuit 2; Auxilliary gas circuit 1 quantity is the 10-15 root, internal diameter 1-4mm, main gas circuit 2 internal diameter 8-12mm.Bundle pipes one end links to each other with inlet pipe 6 with air chamber 3 successively; Be provided with divider 4 in the air chamber 3, divider 4 is buckled in the exit of inlet pipe 6 for bamboo hat shape, all can around circumferential uniform distribution 1-2 circle air distribution hole 7 on the divider 4; Air distribution hole 7 is a circle among the embodiment; Air distribution hole diameter 5-10mm, quantity 10-15, the dispersion angle α of air distribution hole is 10-50 °.
The utility model can reduce the temperature difference of refractory materials effectively, reduces the rate of peeling off of refractory materials, can blow off simultaneously to spatter slag process furnace bottom and be bonded at the slag around the bottom blowing element.In addition, " water hammer effect " that auxilliary gas circuit can disturb main gas circuit to produce in the smelting process reduces the impact of molten steel near the refractory materials bottom blowing element, prolongs the gas supply element life-span, improves steel quality, increases the security of converter running.
Claims (2)
1. a novel converter bottom-blowing air feed element comprises bundle pipes, refractory materials, air chamber and inlet pipe, the bundle pipes of uniform distribution more than one in the refractory materials; Bundle pipes one end links to each other with inlet pipe with air chamber successively, it is characterized in that, said bundle pipes comprises a main gas circuit and the auxilliary gas circuit of Duo Gen; Main gas circuit is provided with between two parties, and auxilliary gas circuit is in the peripheral evenly distributed 1-3 week of main gas circuit, and said auxilliary gas circuit quantity is the 10-15 root; Internal diameter is 1-4mm, and main gas circuit internal diameter is 8-12mm.
2. a kind of novel converter bottom-blowing air feed element according to claim 1; It is characterized in that, be provided with divider in the said air chamber, divider is buckled in the exit of inlet pipe for bamboo hat shape; Enclose air distribution hole around circumferential uniform distribution 1-2 on the divider; The dispersion angle of air distribution hole is 10-50 °, and the air distribution hole diameter is 5-10mm, and air distribution hole quantity is 10-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205448340U CN202450112U (en) | 2011-12-22 | 2011-12-22 | Novel converter bottom blowing air supply element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205448340U CN202450112U (en) | 2011-12-22 | 2011-12-22 | Novel converter bottom blowing air supply element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202450112U true CN202450112U (en) | 2012-09-26 |
Family
ID=46865993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205448340U Expired - Fee Related CN202450112U (en) | 2011-12-22 | 2011-12-22 | Novel converter bottom blowing air supply element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202450112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117701984A (en) * | 2024-02-05 | 2024-03-15 | 山西东方资源发展集团东耀精密材料有限公司 | Bottom blowing stirring device for producing ferromanganese alloy |
-
2011
- 2011-12-22 CN CN2011205448340U patent/CN202450112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117701984A (en) * | 2024-02-05 | 2024-03-15 | 山西东方资源发展集团东耀精密材料有限公司 | Bottom blowing stirring device for producing ferromanganese alloy |
| CN117701984B (en) * | 2024-02-05 | 2024-05-07 | 山西东方资源发展集团东耀精密材料有限公司 | Bottom blowing stirring device for producing ferromanganese alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20171222 |