CN116987898A - Lime oxygen gun for metal refining - Google Patents
Lime oxygen gun for metal refining Download PDFInfo
- Publication number
- CN116987898A CN116987898A CN202311267773.1A CN202311267773A CN116987898A CN 116987898 A CN116987898 A CN 116987898A CN 202311267773 A CN202311267773 A CN 202311267773A CN 116987898 A CN116987898 A CN 116987898A
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- CN
- China
- Prior art keywords
- gun
- pipe
- core
- gas
- tube
- Prior art date
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- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 34
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000004571 lime Substances 0.000 title claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 34
- 239000001301 oxygen Substances 0.000 title claims abstract description 34
- 238000007670 refining Methods 0.000 title claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 86
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 89
- 238000001816 cooling Methods 0.000 claims description 47
- 238000005192 partition Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 239000000110 cooling liquid Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 description 10
- 239000002344 surface layer Substances 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
- F27D2003/185—Conveying particles in a conduct using a fluid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The application relates to the field of metal production, in particular to a lime oxygen gun for metal refining, which comprises a gun core, a protection cylinder, a gun head and a gun body, wherein the gun core and the protection cylinder are both arranged in the gun body; one end of the gun body, which is far away from the gun head, is fixedly connected with a gas pipe, the gas pipe is communicated with the gas channel, and the gun core and the protection cylinder penetrate through the pipe wall of the gas pipe, and the protection cylinder is in sealing connection with the pipe wall of the gas pipe. The lime oxygen gun integrates the conveying materials and the conveying gas on one gun, is convenient for operators to operate, and has the effect of reducing the labor intensity of the operators during metal refining.
Description
Technical Field
The application relates to the field of metal production, in particular to a lime oxygen lance for metal refining.
Background
At present, the metal is subjected to the basic tasks of dephosphorization, decarburization, inclusion removal and the like in the refining process by means of strong oxygen supply, slagging, stirring and the like, wherein auxiliary materials for slagging mainly comprise lime, dolomite and the like, and the main function of the lime in the auxiliary materials is to provide CaO molecules, and CaO can be oxidized with phosphorus element P as a product 2 O 5 Reaction to produce 4CaO.P 2 O 5 And 3 CaO.P 2 O 5 The dephosphorization purpose is achieved.
In the existing metal refining process, lime is added by using a spray gun, and then an oxygen supply device (generally an oxygen gun) is additionally arranged to convey oxygen in the refining furnace.
The prior art solutions described above have the following drawbacks: the operators need to respectively operate the oxygen lance and the spray gun to respectively convey oxygen and lime into the refining furnace, so that when metal refining is caused, the labor intensity of the operators is high during operation.
Disclosure of Invention
The application provides a lime oxygen lance for metal refining, which aims to reduce the labor intensity of workers during metal refining.
The technical aim of the application is realized by the following technical scheme:
the lime oxygen gun for metal refining comprises a gun core, a protection cylinder, a gun head and a gun body, wherein the gun core and the protection cylinder are arranged in the gun body, the gun core is used for conveying materials, the protection cylinder is sleeved outside the gun core, a gas channel is formed between the protection cylinder and the gun body and is used for conveying gas, the gun head is arranged at one end of the gun body, the gun head is fixedly connected with the gun body and the protection cylinder, the gun head is provided with a discharge hole and an air outlet hole, the gun core is inserted into the discharge hole, and the gas channel is communicated with the air outlet hole;
one end of the gun body, which is far away from the gun head, is fixedly connected with a gas pipe, the gas pipe is communicated with the gas channel, and the gun core and the protection cylinder penetrate through the pipe wall of the gas pipe, and the protection cylinder is in sealing connection with the pipe wall of the gas pipe.
By adopting the scheme, the protection cylinder is in sealing connection with the pipe wall of the gas pipe, so that the gas pipe is prevented from leaking gas due to the penetration of the protection cylinder and the gun core; the gun core is used for conveying materials to be sprayed out from a discharge hole of the gun head, and the gun core is protected by the protection cylinder; meanwhile, a gas channel is formed between the protection cylinder and the gun body, gas is conveyed by the gas channel and is sprayed out from the gas outlet hole of the gun head, so that conveyed materials and conveyed gas are collected on one gun, the operation of workers is facilitated, and the aim of reducing the labor intensity of the workers during metal refining is fulfilled.
Further, the gun head is replaceable, the gun head is fixedly connected with a connecting pipe and an inserting pipe, the connecting pipe and the inserting pipe are fixedly connected with the gun head, one end of the connecting pipe, which is far away from the gun head, is fixedly connected with a protection cylinder, the inserting pipe is inserted into the gun body, the inner wall of the inserting pipe is flush with the inner wall of the gun body, and the gas channel is communicated with the gas outlet through a channel formed between the inserting pipe and the connecting pipe.
By adopting the scheme, when the gun head is replaced, firstly, the gun core is pulled out of the protection cylinder from one end far away from the gun head, then the outer surface layer of the gun head is separated from the outer surface layer of the gun body, the head of the gun head is pulled to pull out of the gun body, at the moment, the connecting pipe is fixedly connected with the protection cylinder, the connecting pipe drives the protection cylinder to slide in the gun body, the protection cylinder slides from the gas pipe, so that a part of the protection cylinder slides out of the gun body, then the connecting pipe is separated from the protection cylinder, and then the new gun head is moved, so that the connecting pipe on the new gun head is fixed with the protection cylinder, and the protection cylinder and the gas pipe are arranged to be in sliding connection, so that a part of the gun body can be stretched out when the protection cylinder and the connecting pipe are fixed, and convenience when the protection cylinder and the connecting pipe are fixed is improved; then promote the rifle head again and drive the protection section of thick bamboo and slide in the rifle body through the connecting pipe for in the inserted tube inserts the rifle body, at last fixed the extexine of rifle head and the extexine of rifle body, accomplish the change of rifle head, because the rifle head needs to insert in the molten metal, the high temperature of molten metal easily causes the damage to the rifle head, consequently set up the rifle head and can change, change the rifle head after the rifle head is damaged because of the high temperature, promote the whole life of lime oxygen rifle.
Further, a sealing ring is arranged between the insertion tube and the gun body, the sealing ring is sleeved outside the insertion tube, and the sealing ring is abutted with the gun body.
Through adopting above-mentioned scheme, set up the gap between sealed insert tube of sealing ring and the rifle body, avoid gas leakage when gas flow direction venthole through the gas channel, promote the leakproofness between insert tube and the rifle body after rifle head is connected with the rifle body.
Further, the insertion tube is provided with a groove along the outer wall, and the sealing ring is positioned in the groove.
Through adopting above-mentioned scheme, through setting up the recess, place the sealing ring in the recess for the sealing ring is fixed at the outer wall of insert tube, avoids the sealing ring position to take place the skew when the insert tube inserts the rifle body.
Further, the one end fixedly connected with conveying pipeline and pressure pipe that the rifle core was kept away from the rifle head, conveying pipeline and the lateral wall fixed connection of rifle core, conveying pipeline and the inside intercommunication of rifle core are used for carrying the material to the rifle core, and the end fixed connection of pressure pipe and rifle core, pressure pipe are used for carrying high-pressure gas to promote the material and slide in the rifle core.
Through adopting above-mentioned scheme, carry the material in to the rifle core through the conveying pipeline, utilize the atmospheric pressure that pressure pipe produced to promote the material of rifle core and conveying pipeline junction in the interior slip of rifle core.
Further, a sealing tube is fixedly connected to the tube wall of the gas transmission tube, the sealing tube is fixedly connected with the tube wall of the gas transmission tube, the protection tube penetrates through the sealing tube, and the protection tube is in sliding connection with the sealing tube and keeps a sealing state.
Through adopting above-mentioned scheme, make seal tube and gas-supply pipe fixed connection, pass the seal tube with the protection section of thick bamboo again, through setting up area of contact between seal tube increase gas-supply pipe and the seal tube, promote the leakproofness between protection section of thick bamboo and the gas-supply pipe.
Further, one end of the protection cylinder penetrating through the sealing tube is provided with a fixing bolt, the fixing bolt penetrates through the protection cylinder to be abutted with the gun core, and the fixing bolt is in threaded connection with the protection cylinder.
Through adopting above-mentioned scheme, when inserting the rifle core in the protection section of thick bamboo, rotate fixing bolt and rifle core butt, utilize fixing bolt to fix the position of protection section of thick bamboo and rifle core.
Further, a cooling cavity is formed in the gun body, the gun body is fixedly connected with a liquid inlet pipe and a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are communicated with the cooling cavity.
Through adopting above-mentioned scheme, utilize the feed liquor pipe to carry the coolant liquid to the cooling intracavity, the coolant liquid flows out the cooling chamber through the drain pipe after cooling intracavity flows, carries out cooling to the rifle body through setting up the cooling chamber, promotes the life of rifle body.
Further, the feed liquor pipe and the drain pipe are located the one end that the rifle body kept away from the rifle head, and the cooling intracavity is provided with the baffle, and the baffle is cut apart into feed liquor chamber and drain chamber with the cooling chamber, feed liquor chamber and feed liquor pipe intercommunication, drain chamber and drain pipe intercommunication.
Through adopting above-mentioned scheme, because the one end that the rifle body is close to the rifle head needs to go deep into in the metal solution, consequently, need all set up feed liquor pipe and drain pipe in the one end that the rifle head was kept away from to the rifle body, in order to avoid the coolant liquid to come from the feed liquor pipe after directly flowing out from the drain pipe, consequently set up the baffle and cut apart into feed liquor chamber and drain chamber with the cooling chamber, again with feed liquor pipe and feed liquor chamber intercommunication, drain pipe and drain chamber intercommunication for the coolant liquid of feed liquor pipe inflow reentrant goes out the drain intracavity along the whole back of the flowing rifle body of feed liquor chamber, again flows to the drain intraductal from the drain chamber at last.
Further, a cooling groove is formed in the gun head and is communicated with the cooling cavity, a liquid passing plate is fixedly connected in the cooling groove and is abutted to the partition plate, and a liquid passing hole is formed in the liquid passing plate and used for flowing of cooling liquid.
Through adopting above-mentioned scheme, make the coolant liquid of cooling intracavity get into in the rifle head through setting up the cooling tank and cool down the rifle head, then reuse the liquid board divide into two parts with the cooling tank and respectively with feed liquor chamber and play liquid chamber intercommunication for the coolant liquid that gets into in the rifle head circulates through the filtration pore, avoids the coolant liquid that gets into in the cooling tank can't follow the coolant liquid synchronous flow of cooling intracavity.
In summary, the application has the following technical effects:
1. the gun core, the protection cylinder, the gun head and the gun body are arranged, the protection cylinder is in sealing connection with the pipe wall of the gas pipe, and gas leakage of the gas pipe caused by the penetration of the protection cylinder and the gun core is avoided; the gun core is used for conveying materials to be sprayed out from a discharge hole of the gun head, and the gun core is protected by the protection cylinder; meanwhile, a gas channel is formed between the protection cylinder and the gun body, gas is conveyed by the gas channel and is sprayed out from the gas outlet hole of the gun head, so that conveyed materials and conveyed gas are collected on one gun, the operation of workers is facilitated, and the aim of reducing the labor intensity of the workers during metal refining is fulfilled;
2. when the gun head is replaced, the gun core is pulled out of the protection cylinder from one end far away from the gun head, then the outer surface layer of the gun head is separated from the outer surface layer of the gun body, the gun head is pulled to drive the insertion pipe to be pulled out of the gun body, at the moment, the connection pipe drives the protection cylinder to slide in the gun body due to the fixed connection of the connection pipe and the protection cylinder, the protection cylinder slides with the gas transmission pipe, so that a part of the protection cylinder slides out of the gun body, then the connection pipe is separated from the protection cylinder, a new gun head is moved, the connection pipe on the new gun head is fixed with the protection cylinder, and the protection cylinder is connected with the gas transmission pipe in a sliding mode, so that a part of the gun body can be stretched out when the protection cylinder is fixed with the connection pipe, and convenience when the protection cylinder is fixed with the connection pipe is improved; then pushing the gun head to drive the protection cylinder to slide in the gun body through the connecting pipe so that the inserting pipe is inserted into the gun body, finally fixing the outer surface layer of the gun head and the outer surface layer of the gun body, and completing replacement of the gun head;
3. through having set up the cooling chamber in the rifle body, utilize the feed liquor pipe to carry the coolant liquid to the cooling intracavity, the coolant liquid flows the cooling chamber through the drain pipe after cooling intracavity flows, carries out cooling to the rifle body through setting up the cooling chamber, promotes the life of rifle body.
Drawings
FIG. 1 is a schematic view of the structure of a lime oxygen lance for metal refining of the present application;
FIG. 2 is a schematic view of a lime oxygen lance for metal refining according to another view of the present application;
FIG. 3 is a left side view of a lime oxygen lance for metal refining of the present application;
FIG. 4 is a cross-sectional view of A-A of FIG. 3;
FIG. 5 is a schematic view of the structure of the gun head when connected with the gun body;
FIG. 6 is a schematic structural view of the gun head;
FIG. 7 is a schematic view of the internal structure of the gun head;
FIG. 8 is a schematic structural view of the front and rear end connections of the gun core;
FIG. 9 is a schematic illustration of the male and female mating configuration;
FIG. 10 is a schematic structural view of a connecting column;
fig. 11 is a schematic view of the structure of the tension groove in the sliding groove.
In the figure, 1, a gun core; 11. a material conveying pipe; 12. a pressure pipe; 13. a ceramic tube; 2. a protective cylinder; 21. a fixing bolt; 3. a gun head; 31. a discharge hole; 32. an air outlet hole; 33. a connecting pipe; 34. an insertion tube; 341. a seal ring; 35. a cooling tank; 351. a liquid inlet tank; 352. a liquid outlet groove; 36. a liquid passing plate; 361. a liquid passing hole; 4. a gun body; 41. a cooling chamber; 411. a liquid inlet cavity; 412. a liquid outlet cavity; 42. a liquid inlet pipe; 43. a liquid outlet pipe; 431. a valve; 44. a partition plate; 45. a connecting ring; 5. a gas channel; 6. a gas pipe; 61. sealing the tube; 7. a front end pipe; 8. a rear end tube; 9. a connection assembly; 91. a boss; 92. a recessed portion; 10. a tensioning assembly; 101. a connection hole; 102. a connecting column; 1021. a receiving groove; 103. a sliding groove; 104. a limit column; 105. a spring; 106. a tensioning groove; 20. a positioning assembly; 201. a first groove; 202. a second groove; 203. a positioning block; 30. a hitching device; 301. a connecting plate; 3011. a first plate; 3012. a second plate; 302. and (5) hanging a trunnion.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1-4, the lime oxygen lance for metal refining provided in this embodiment includes a lance core 1, a protection cylinder 2, a lance head 3 and a lance body 4, wherein the lance core 1, the protection cylinder 2, the lance head 3 and the lance body 4 are all coaxially arranged, the lance core 1 and the protection cylinder 2 are all arranged in the lance body 4, the lance core 1 is used for conveying materials, in this embodiment, the conveyed materials are lime, an anti-wear layer is fixedly connected to the inner wall of the lance core 1, and the anti-wear layer is arranged as a ceramic tube 13 made of ceramic materials; the protection cylinder 2 is sleeved outside the gun core 1, a gas channel 5 is formed between the protection cylinder 2 and the gun body 4, the gas channel 5 is used for conveying gas, the gun head 3 is arranged at one end of the gun body 4, the gun head 3 is fixedly connected with the gun body 4 and the protection cylinder 2, the gun head 3 is provided with a discharge hole 31 and a gas outlet hole 32, the gun core 1 is inserted into the discharge hole 31, the gas channel 5 is communicated with the gas outlet holes 32, in the embodiment, the number of the gas outlet holes 32 is four, and the four gas outlet holes 32 are uniformly distributed around the discharge hole 31; one end of the gun body 4, which is far away from the gun head 3, is fixedly connected with a gas pipe 6, the gas pipe 6 is communicated with the gas channel 5, in this embodiment, the gas pipe 6 is used for conveying oxygen, the gun core 1 and the protection barrel 2 penetrate through the pipe wall of the gas pipe 6, and the protection barrel 2 is in sliding connection with the sealing pipe 61 and keeps a sealing state.
Referring to fig. 4-7, in this embodiment, since the gun head 3 needs to be inserted into the molten metal with high temperature for use, the gun head 3 is configured to be replaceable, that is, the gun head 3 is detachably connected with the gun body 4; the gun head 3 is fixedly connected with the connecting pipe 33 and the inserting pipe 34, the connecting pipe 33 and the inserting pipe 34 are fixedly connected with the gun head 3, the connecting pipe 33 and the inserting pipe 34 are coaxially arranged with the gun head 3, one end of the connecting pipe 33, which is far away from the gun head 3, is fixedly connected with the protection barrel 2, the inserting pipe 34 is inserted into the gun body 4, the gas channel 5 is communicated with the gas outlet 32 through a channel formed between the inserting pipe 34 and the connecting pipe 33, the inner wall of the inserting pipe 34 is flush with the inner wall of the gun body 4, resistance is not generated due to the fact that the connecting part of the inserting pipe 34 and the gun body 4 is not flush in gas flowing, in this embodiment, the connecting pipe 33 and the protection barrel 2 are fixedly welded, a connecting ring 45 is arranged at a position, which is close to the inserting pipe 34, the connecting ring 45 is fixedly connected with the gun body 4, the inner wall of the connecting ring 45 is flush with the inner wall of the gun body 4, a connecting groove is formed in the inner wall of the connecting ring 45, and the inserting pipe 34 is inserted into the connecting groove, so that the inner wall of the inserting pipe 34 is flush with the inner wall of the connecting ring 45, namely the inner wall of the inserting pipe 34 is flush with the inner wall of the gun body 4; a sealing ring 341 is arranged between the insertion tube 34 and the connecting ring 45, the sealing ring 341 is sleeved outside the insertion tube 34, the sealing ring 341 is abutted with the connecting ring 45, the insertion tube 34 is provided with a groove along the outer wall, and the sealing ring 341 is arranged in the groove.
Referring to fig. 1-4, one end of the gun core 1 far away from the gun head 3 is fixedly connected with a conveying pipe 11 and a pressure pipe 12, the conveying pipe 11 is perpendicular to the gun core 1, one end of the conveying pipe 11 is fixedly connected with the side wall of the gun core 1, the other end of the conveying pipe is connected with a lime storage device, the conveying pipe 11 is communicated with the inside of the gun core 1 and is used for conveying lime to the gun core 1, the pressure pipe 12 is arranged at the end of the gun core 1, the pressure pipe 12 is fixedly connected with the gun core 1, and the pressure pipe 12 is used for conveying high-pressure gas to push materials to slide in the gun core 1.
Referring to fig. 1-4, a sealing tube 61 is fixedly connected to the tube wall of the gas pipe 6, the sealing tube 61 is coaxially arranged with the protection tube 2, the sealing tube 61 is fixedly connected to the tube wall of the gas pipe 6, the protection tube 2 passes through the sealing tube 61, the protection tube 2 is slidably connected with the sealing tube 61 and maintains a sealing state, so that when the gun head 3 is replaced, the protection tube 2 can be pulled to slide in the gun body 4, one end of the protection tube 2, which is close to the gun head 3, slides out of the gun body 4, and sealing between the protection tube 2 and the gas pipe 6 can be kept so as not to leak gas; in this embodiment, the inner wall of the sealing tube 61 is provided with three grooves formed on the inner wall of the ring, and each groove is also provided with a sealing ring 341, and the sealing ring 341 is abutted against the side wall of the protection cylinder 2; in the present embodiment, a fixing bolt 21 is provided at one end of the protection tube 2 penetrating the seal tube 61, the fixing bolt 21 is abutted against the gun core 1 through the side wall of the protection tube 2, and the fixing bolt 21 is screwed to the protection tube 2.
Referring to fig. 1-4, a cooling cavity 41 is formed in a gun body 4, the gun body 4 is fixedly connected with a liquid inlet pipe 42 and a liquid outlet pipe 43, the liquid inlet pipe 42 and the liquid outlet pipe 43 are communicated with the cooling cavity 41, and the liquid outlet pipe 43 is fixedly connected with a valve 431; because the temperature of the gun head 3 is high when one end is inserted into the molten metal, in this embodiment, the liquid inlet pipe 42 and the liquid outlet pipe 43 are both disposed at the end of the gun body 4 away from the gun head 3, and a partition plate 44 is disposed in the cooling cavity 41, the partition plate 44 is fixedly connected with the cooling cavity 41 at the end of the cooling cavity 41 away from the gun head 3, the partition plate 44 divides the cooling cavity 41 into a liquid inlet cavity 411 and a liquid outlet cavity 412, the liquid inlet cavity 411 is disposed near the gas channel 5, the liquid inlet cavity 411 is communicated with the liquid inlet pipe 42, and the liquid outlet cavity 412 is communicated with the liquid outlet pipe 43, so that the cooling liquid 41 flows along the liquid inlet cavity 411 to the end of the partition plate 44 near the gun head and flows into the liquid outlet cavity 412.
Referring to fig. 4-7, a cooling groove 35 is formed in the gun head 3, the cooling groove 35 is communicated with the cooling cavity 41, so that cooling liquid enters the gun head 3 to cool and protect the gun head 3, a liquid passing plate 36 is fixedly connected in the cooling groove 35, one end, far away from the gun body, of the cooling groove 35 is fixedly connected with the liquid passing plate 36, the liquid passing plate 36 is used for dividing the cooling groove 35 into a liquid inlet groove 351 and a liquid outlet groove 352, the liquid inlet groove 351 is communicated with the liquid inlet cavity 411, the liquid outlet groove 352 is communicated with the liquid outlet cavity 412, the liquid passing plate 36 is abutted to the partition plate 44, and a liquid passing hole 361 is formed in one end, close to the gun head 3, of the liquid passing plate 36 for flowing of cooling liquid.
In this embodiment, an inserting structure (not shown in the drawing) is disposed between the liquid passing plate 36 and the partition plate 44, and is used for connecting the liquid passing plate 36 and the partition plate 44, where the inserting structure includes an inserting groove and an inserting block, the partition plate 44 is provided with an inserting groove, one end of the liquid passing plate 36 far away from the gun head 3 is fixedly connected with the inserting block, the inserting block is in inserting fit with the inserting groove, and the inserting fit of the inserting block and the inserting groove is utilized, so that the liquid passing plate 36 and the partition plate 44 are in a sealing state after being connected, and the cooling liquid is prevented from flowing between the liquid inlet cavity 411 and the cooling cavity 41 through a gap between the liquid passing plate 36 and the partition plate 44.
Referring to fig. 1 and 2, in the present embodiment, the gun body 4 is further provided with a hanging device 30, the hanging device 30 includes two connecting plates 301 and hanging ear shafts 302, the two connecting plates 301 are respectively disposed at two sides of the gas pipe 6, the hanging ear shafts 302 are disposed at one end of the connecting plates 301 far away from the gun body 4, and two ends of the hanging ear shafts 302 are respectively fixedly connected with the two connecting plates 301; the connecting plate 301 comprises a first plate 3011 and a second plate 3012, the first plate 3011 is fixedly connected with the gun body 4, the second plate 3012 is fixedly connected with the hanger shaft 302, and the first plate 3011 and the second plate 3012 are detachably connected through bolts, so that the hanger shaft 302 can be detached from the gun body 4, and the gun core 1 can be conveniently pulled out of the protection barrel 2 when the gun core 1 is replaced.
The embodiment of the application relates to a lime oxygen lance for metal refining, which comprises the following implementation principles: when the lime oxygen gun is used, lime is firstly conveyed into the gun core 1 through the conveying pipe 11, the pressure pipe 12 conveys high-pressure gas to push the lime to be sprayed out of the gun core 1, then oxygen is conveyed into the gas channel 5 through the gas conveying pipe 6, and the oxygen is sprayed out of the gas outlet hole 32 along the gas channel 5; simultaneously, the valve 431 is opened, cooling liquid is conveyed into the liquid inlet cavity 411 through the liquid inlet pipe 42, flows into the liquid inlet groove 351 along the liquid inlet cavity 411, then flows into the liquid outlet groove 352 from the liquid outlet groove 352 through the liquid through hole 361 on the liquid passing plate 36, flows into the liquid outlet cavity 412, and finally flows out through the liquid outlet pipe 43, so that the gun body 4 and the gun head 3 are cooled.
When the gun head 3 is replaced, firstly, the bolts at the first plate 3011 and the second plate 3012 are opened, the first plate 3011 and the second plate 3012 are separated, then the fixing bolts 21 are rotated away from the gun core 1, and the gun core 1 is pulled out of the protection barrel 2; cutting the welding part between the gun head 3 and the outer layer of the gun body 4, pulling the gun head 3 to drive the insertion tube 34 to be pulled out of the connecting ring 45, driving the protection tube 2 to slide in the gun body 4 through the connecting tube 33 by the gun head 3, enabling the protection tube 2 to slide in the sealing tube 61, pulling out the gun body 4 from the welding position between the connecting tube 33 and the protection tube 2, cutting the welding position between the connecting tube 33 and the protection tube 2, and separating the old gun head 3 from the gun body 4; moving a new gun head 3 to be close to the gun body 4, aligning and welding a connecting pipe 33 of the new gun head 3 with the protection barrel 2, pushing the gun head 3 to drive an insertion pipe 34 to be inserted into a connecting ring 45, driving the protection barrel 2 to slide in the gun body 4 at the moment, enabling the protection barrel 2 to slide at a sealing pipe 61, driving an inserting block to be inserted into an inserting groove by a liquid passing plate 36, enabling the liquid passing plate 36 to be connected with a partition plate 44, and welding and fixing the gun head 3 and the outer side of the gun body 4; the gun core 1 is moved to be inserted into the protection cylinder 2, one end of the gun core 1 far away from the conveying pipe 11 and the pressure pipe 12 is inserted into the discharge hole 31 of the gun head 3, the fixing bolt 21 is rotated to be abutted with the gun core 1, the gun core 1 is fixed with the protection cylinder 2, and the gun head 3 is replaced.
Example two
Referring to fig. 8 to 11, the second embodiment of the present application is different from the first embodiment in that: the gun core 1 comprises a front end pipe 7 and a rear end pipe 8, wherein the front end pipe 7 is inserted into the gun head 3, the front end pipe 7 is inserted into the metal solution along with the gun head 3, the rear end pipe 8 is fixedly connected with the conveying pipe 11 and the pressure pipe 12, and the front end pipe 7 is easily damaged in a high-temperature state when being inserted into the metal solution, so that the front end pipe 7 needs to be replaced regularly to ensure the normal use of the lime oxygen gun; a connecting component 9 is arranged between the front end pipe 7 and the rear end pipe 8, the connecting component 9 comprises a convex part 91 and a concave part 92, the front end pipe 7 is fixedly connected with the concave part 92, the rear end pipe 8 is fixedly connected with the convex part 91, the convex part 91 is in plug-in fit with the concave part 92, and the inner walls of the convex part 91 and the concave part 92 are flush with the inner walls of the front end pipe 7 and the rear end pipe 8; the tensioning assembly 10 is arranged between the protruding portion 91 and the recessed portion 92, the tensioning assembly 10 comprises a connecting hole 101, a connecting column 102, a sliding groove 103, a limiting column 104, a spring 105 and a tensioning groove 106, the connecting column 102 is fixedly connected with the protruding portion 91, the connecting hole 101 is formed in the recessed portion 92, the connecting column 102 is in plug-in fit with the connecting hole 101, the sliding groove 103 is formed in the recessed portion 92, the sliding groove 103 is communicated with the connecting hole 101, a containing groove 1021 is formed in the connecting column 102, the limiting column 104 and the spring 105 are located in the containing groove 1021, two ends of the spring 105 are fixedly connected with the limiting column 104 and the containing groove 1021 respectively, the limiting column 104 is in sliding connection with the containing groove 1021, the tensioning groove 106 is formed in the side wall of the sliding groove 103, the tensioning groove 106 is inclined from the connecting hole 101 to a direction far away from the protruding portion 91, the limiting column 104 is used for controlling the limiting column 104 to slide to a direction far away from the protruding portion 91, the limiting column 104 is enabled to be driven by the limiting column 104 to be further inserted into the connecting hole 101, and the protruding portion 91 is driven to be tightly extruded and sealed with the recessed portion 92.
Referring to fig. 8 and 9, a positioning assembly 20 is further disposed between the front end pipe 7 and the rear end pipe 8, the positioning assembly 20 includes a first groove 201, a second groove 202 and a positioning block 203, the first groove 201 is formed in a side wall of the front end pipe 7, the second groove 202 is formed in a side wall of the rear end pipe 8, when the tensioning assembly 10 drives the front end pipe 7 and the rear end pipe 8 to be connected seamlessly, the first groove 201 is communicated with the second groove 202, at this time, one end of the positioning block 203 is inserted into the first groove 201, and the other end is inserted into the second groove 202.
When the front end pipe 7 and the rear end pipe 8 are assembled into the gun core 1, the front end pipe 7 is moved to approach the rear end pipe 8, the protruding portion 91 is inserted into the concave portion 92, the limiting column 104 is pushed downwards to slide in the accommodating groove 1021 to compress the spring 105, the limiting column 104 is completely positioned in the accommodating groove 1021, then the connecting column 102 is inserted into the connecting hole 101, along with the abutting of the protruding portion 91 and the concave portion 92, the connecting column 102 is inserted into the connecting hole 101, at the moment, the limiting column 104 is positioned at the position of the tensioning groove 106, the spring 105 pushes the limiting column 104 to slide upwards in the accommodating groove 1021, one end of the limiting column 104 slides into the tensioning groove 106, then the front end or the rear end is rotated, the connecting column 102 slides into the sliding groove 103 from the connecting hole 101 and slides along the sliding groove 103, and slides along the tensioning groove 106, and as the sliding track of the limiting column 104 is limited by the tensioning groove 106 to slide away from the position of the protruding portion 91, the connecting column 102 is driven by the limiting column 104 to continue to be inserted into the sliding groove 103, the connecting column 102 is driven by the connecting column 102 to push the protruding portion 91 and the concave portion 92, and the sealing groove 92, and the front end of the connecting column 104 is sealed by the first end and the first end 202 and the second end of the connecting column 202 are sealed by the sealing groove 203 and the second end of the connecting column 7 and the front end of the front end pipe 8, and the front end pipe 8 are completely sealed by the sealing position of the front end pipe 7 and the front end pipe 8, and the front end of the front end pipe 8 is replaced conveniently and the front end pipe 7 is completely sealed and the front end sealed by the sealing end of the front end pipe 7 and the sealing end of the pipe 7 and the front end pipe is completely sealed.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
1. A lime oxygen lance for metal refining, characterized by: the automatic feeding device comprises a gun core (1), a protection barrel (2), a gun head (3) and a gun body (4), wherein the gun core (1) and the protection barrel (2) are arranged in the gun body (4), the gun core (1) is used for conveying materials, the protection barrel (2) is sleeved outside the gun core (1), a gas channel (5) is formed between the protection barrel (2) and the gun body (4), the gas channel (5) is used for conveying gas, the gun head (3) is arranged at one end of the gun body (4), the gun head (3) is fixedly connected with the gun body (4) and the protection barrel (2), the gun head (3) is provided with a discharge hole (31) and an air outlet hole (32), the gun core (1) is inserted into the discharge hole (31), and the gas channel (5) is communicated with the air outlet hole (32);
one end of the gun body (4) away from the gun head (3) is fixedly connected with a gas pipe (6), the gas pipe (6) is communicated with the gas channel (5), the gun core (1) and the protection cylinder (2) penetrate through the pipe wall of the gas pipe (6), and the protection cylinder (2) is in sealing connection with the pipe wall of the gas pipe (6).
2. A lime oxygen lance for metal refining as claimed in claim 1, wherein: the gun head (3) is replaceable, the gun head (3) is fixedly connected with a connecting pipe (33) and an inserting pipe (34), the connecting pipe (33) and the inserting pipe (34) are fixedly connected with the gun head (3), one end, away from the gun head (3), of the connecting pipe (33) is fixedly connected with the protection cylinder (2), the inserting pipe (34) is inserted into the gun body (4), the inner wall of the inserting pipe (34) is flush with the inner wall of the gun body (4), and the gas channel (5) is communicated with the gas outlet hole (32) through a channel formed between the inserting pipe (34) and the connecting pipe (33).
3. A lime oxygen lance for metal refining according to claim 2, wherein: a sealing ring (341) is arranged between the insertion tube (34) and the gun body (4), the sealing ring (341) is sleeved on the outer side of the insertion tube (34), and the sealing ring (341) is abutted to the gun body (4).
4. A lime oxygen lance for metal refining according to claim 3, wherein: the insertion tube (34) is provided with a groove along the outer wall, and the sealing ring (341) is positioned in the groove.
5. A lime oxygen lance for metal refining as claimed in claim 1, wherein: one end fixedly connected with conveying pipeline (11) and pressure pipe (12) of rifle head (3) are kept away from to rifle core (1), and conveying pipeline (11) and the lateral wall fixed connection of rifle core (1), conveying pipeline (11) and the inside intercommunication of rifle core (1) are used for carrying the material to rifle core (1), and end fixed connection of pressure pipe (12) and rifle core (1), pressure pipe (12) are used for carrying high-pressure gas to promote the material to slide in rifle core (1).
6. A lime oxygen lance for metal refining as claimed in claim 1, wherein: the sealing device is characterized in that a sealing tube (61) is fixedly connected to the tube wall of the gas tube (6), the sealing tube (61) is fixedly connected with the tube wall of the gas tube (6), the protection tube (2) penetrates through the sealing tube (61), and the protection tube (2) is slidably connected with the sealing tube (61) and keeps a sealing state.
7. A lime oxygen lance for metal refining as set forth in claim 6, wherein: one end of the protection cylinder (2) penetrating through the sealing tube (61) is provided with a fixing bolt (21), the fixing bolt (21) penetrates through the protection cylinder (2) to be abutted with the gun core (1), and the fixing bolt (21) is in threaded connection with the protection cylinder (2).
8. A lime oxygen lance for metal refining as claimed in claim 1, wherein: a cooling cavity (41) is formed in the gun body (4), the gun body (4) is fixedly connected with a liquid inlet pipe (42) and a liquid outlet pipe (43), and the liquid inlet pipe (42) and the liquid outlet pipe (43) are communicated with the cooling cavity (41).
9. A lime oxygen lance for metal refining as set forth in claim 8, wherein: the liquid inlet pipe (42) and the liquid outlet pipe (43) are both positioned at one end, far away from the gun head (3), of the gun body (4), the cooling cavity (41) is internally provided with a partition plate (44), the partition plate (44) divides the cooling cavity (41) into a liquid inlet cavity (411) and a liquid outlet cavity (412), the liquid inlet cavity (411) is communicated with the liquid inlet pipe (42), and the liquid outlet cavity (412) is communicated with the liquid outlet pipe (43).
10. A lime oxygen lance for use in metal refining as claimed in claim 9, wherein: a cooling groove (35) is formed in the gun head (3), the cooling groove (35) is communicated with the cooling cavity (41), a liquid passing plate (36) is fixedly connected in the cooling groove (35), the liquid passing plate (36) is abutted to the partition plate (44), and a liquid passing hole (361) for flowing of cooling liquid is formed in the liquid passing plate (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311267773.1A CN116987898B (en) | 2023-09-28 | 2023-09-28 | Lime oxygen gun for metal refining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311267773.1A CN116987898B (en) | 2023-09-28 | 2023-09-28 | Lime oxygen gun for metal refining |
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| CN116987898A true CN116987898A (en) | 2023-11-03 |
| CN116987898B CN116987898B (en) | 2024-01-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62185819A (en) * | 1986-02-03 | 1987-08-14 | ホエスト−アルピン・アクチエンゲゼルシヤフト | Spray lance |
| CN105624358A (en) * | 2016-01-12 | 2016-06-01 | 中冶赛迪上海工程技术有限公司 | Method for producing low-phosphorous steel by single converter and double oxygen lances |
| CN105838845A (en) * | 2016-06-06 | 2016-08-10 | 中冶赛迪工程技术股份有限公司 | Supersonic circulating combustion coherent arbon-oxygen lance of electric arc furnace and spray head structure |
| CN212430864U (en) * | 2020-06-17 | 2021-01-29 | 洛阳豫新工程技术股份有限公司 | Water-cooled combustion device for waste steel preheating pulverized coal natural gas |
| CN216663145U (en) * | 2021-09-23 | 2022-06-03 | 天津喆丰环保科技有限公司 | Steel-making oxygen lance |
| CN219424659U (en) * | 2023-03-31 | 2023-07-28 | 苏菏本源(苏州)健康科技有限公司 | Spray gun convenient to dismantle |
-
2023
- 2023-09-28 CN CN202311267773.1A patent/CN116987898B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62185819A (en) * | 1986-02-03 | 1987-08-14 | ホエスト−アルピン・アクチエンゲゼルシヤフト | Spray lance |
| CN105624358A (en) * | 2016-01-12 | 2016-06-01 | 中冶赛迪上海工程技术有限公司 | Method for producing low-phosphorous steel by single converter and double oxygen lances |
| CN105838845A (en) * | 2016-06-06 | 2016-08-10 | 中冶赛迪工程技术股份有限公司 | Supersonic circulating combustion coherent arbon-oxygen lance of electric arc furnace and spray head structure |
| CN212430864U (en) * | 2020-06-17 | 2021-01-29 | 洛阳豫新工程技术股份有限公司 | Water-cooled combustion device for waste steel preheating pulverized coal natural gas |
| CN216663145U (en) * | 2021-09-23 | 2022-06-03 | 天津喆丰环保科技有限公司 | Steel-making oxygen lance |
| CN219424659U (en) * | 2023-03-31 | 2023-07-28 | 苏菏本源(苏州)健康科技有限公司 | Spray gun convenient to dismantle |
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| CN116987898B (en) | 2024-01-05 |
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