SU500239A1 - Lance for deep metal purging - Google Patents
Lance for deep metal purgingInfo
- Publication number
- SU500239A1 SU500239A1 SU2033222A SU2033222A SU500239A1 SU 500239 A1 SU500239 A1 SU 500239A1 SU 2033222 A SU2033222 A SU 2033222A SU 2033222 A SU2033222 A SU 2033222A SU 500239 A1 SU500239 A1 SU 500239A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- lance
- nozzles
- gas
- head
- purging
- Prior art date
Links
Classifications
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Description
1one
Изобретение относитс к черной металлурTHHj конкретно к продувке металла в|сталеплав1 льмь1х агрегатах.The present invention relates to ferrous metallurgy specifically to the blowing of metal in steel-making units.
Известны фурмы дл (продувки металла, содержащие водоохлаждаемый корпус с концентричными каналами дл подачи реагентов,; охладител и сопла, выполненные из коаксиальных труб с зазорами. Однако известные фур мы имеют низкую стойкость npti глубинной продувке из-за слабой защиты сопел от воз-10 {дёйстви реакционной зоны и расплава.Known tuyeres for metal blowing, containing a water-cooled body with concentric channels for supplying reagents, a cooler, and nozzles made of coaxial pipes with gaps. However, well-known trucks have a low resistance to bottom-purging npti due to poor protection of air nozzles-10 { deystvii reaction zone and melt.
Цель изобретени - повышение стойкости фурмы..The purpose of the invention is to increase the resistance of the tuyere ..
Это достигаетс тем, что фурма снабжена устанс®ленным в торце газового канала 15 опорным кольцом с калиброванными отверсти ми, к которым прикреплены наружные трубы газокислородных сопел с зазором дл подачи газа между каждой трубой и телом головки. This is achieved by the fact that the lance is provided with a support ring at the end of the gas channel 15 with calibrated holes to which the outer tubes of the gas-oxygen nozzles are attached with a gap for supplying gas between each tube and the head body.
На фиг. 1 показан продольный разрез по20 головке фурмы1 на фиг.2 -. узел 1 установ ки газокислородных сопел в головке фурмы. ; 1урма состоит из охлаждаемого корпуса 1, головки 2, неохлаждаемых газораспределительных сопел 3, состо щих из двух коак-.25FIG. 1 shows a longitudinal section through the head of tuyere 1 in FIG. 2 -. node 1 of the installation of gas-oxygen nozzles in the tuyere head. ; The 1 turf consists of a cooled body 1, a head 2, uncooled gas distribution nozzles 3 consisting of two coac-25
сиальных труб, по к.оторым подаютс кисло-, род и защитный газ. Коаксильно {Расположенные трубы 4 образуют полости д л подвопа газа, кислорода и охладител .sial pipes, for which acid, genus and protective gas are supplied. Coaxial {Arranged pipes 4 form cavities for the gas, oxygen and cooler sub-fields.
Длина не неохлалщаемых газокислородных, ропел невелгаса по отношению к общей длине фурмы и зависит от того, на какой глубине желательно вести I продувку жидкого металла . Наружна труба каждого сопла 3 закреплена , например, при помощи резьбового соединени к опорному кольну 5, |11ах 3д щему-с торце-газового канала. Сопла свободно про- ход т через отверсти в медной головке фурм образу зазор 6 между наружной трубой сопла и телом головки. В .-опорном кольце 5 иемютс калиброванные отверсти 7, служащие дл подачи природного газа в зазор 6 межДу соплами и головкой фурк:ы.The length of the non-hallowed gas-oxygen, the ropel of the Nevelgas is relative to the total length of the tuyere, and depends on the depth at which it is desirable to conduct the I purging of the liquid metal. The outer tube of each nozzle 3 is fastened, for example, by means of a threaded joint to a support ring 5, 11 ax 3d-with an end-gas channel. The nozzles freely pass through the holes in the copper head of the tuyeres to form a gap 6 between the outer tube of the nozzle and the body of the head. In the support ring 5, there are calibrated holes 7 that serve to supply natural gas to the gap 6 between the nozzles and the furrow head: s.
Фурма работает следующим образом.The lance works as follows.
Во врем продувки жидкого металла фурму опускают до уровн , при котором ее головка 2 находитс на границе шлак-металл, а юохлаждаемые сопла 3 погружены в металл. Изготовленные из жаропроннцаемой стали сопла нагреваютс значите.пьно сильнее,.чемDuring the purging of the molten metal, the tuyere is lowered to the level at which its head 2 lies on the slag-metal interface, and the cooled cooling nozzles 3 are immersed in the metal. Nozzles made of heat-resistant steel are heated. They are much stronger.
yjffv /yjffv /
Фиг. 2FIG. 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2033222A SU500239A1 (en) | 1974-06-14 | 1974-06-14 | Lance for deep metal purging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2033222A SU500239A1 (en) | 1974-06-14 | 1974-06-14 | Lance for deep metal purging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU500239A1 true SU500239A1 (en) | 1976-01-25 |
Family
ID=20587510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2033222A SU500239A1 (en) | 1974-06-14 | 1974-06-14 | Lance for deep metal purging |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU500239A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251271A (en) * | 1977-05-09 | 1981-02-17 | Commonwealth Scientific And Industrial Research Organization | Submerged injection of gas into liquid-pyrometallurgical bath |
-
1974
- 1974-06-14 SU SU2033222A patent/SU500239A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251271A (en) * | 1977-05-09 | 1981-02-17 | Commonwealth Scientific And Industrial Research Organization | Submerged injection of gas into liquid-pyrometallurgical bath |
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