CN201165544Y - Reverse V-shaped granule magnesium molten iron desulfuring spray gun - Google Patents
Reverse V-shaped granule magnesium molten iron desulfuring spray gun Download PDFInfo
- Publication number
- CN201165544Y CN201165544Y CNU200720185400XU CN200720185400U CN201165544Y CN 201165544 Y CN201165544 Y CN 201165544Y CN U200720185400X U CNU200720185400X U CN U200720185400XU CN 200720185400 U CN200720185400 U CN 200720185400U CN 201165544 Y CN201165544 Y CN 201165544Y
- Authority
- CN
- China
- Prior art keywords
- spray gun
- molten iron
- bend pipe
- nozzle
- reverse
- 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 - Lifetime
Links
Images
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a reversed V-shaped hot metal desulphurization spray gun with granular magnesium, which belongs to the ferrous metallurgy field, namely, the field where the outside-furnace desulfurization treatment is performed to the hot metal in the hot metal ladle. The reversed V-shaped hot metal desulphurization spray gun comprises a gun body; the gun body comprises a framework (1) provided with a refractory lining (2), a passage (3) positioned in the gun body, a feed influent distributor (4) and a bent tube (5); the feeding end opening of the feed influent distributor (4) is matched and connected with the discharging end opening of the passage (3); the discharging end opening of the feed influent distributor (4) is matched and connected with the feeding end opening of the bent tube (5); a nozzle (6) is arranged at the end part of the bent tube (5); a refractory casing pipe (7) is arranged outside the nozzle (6); the discharging end opening of the feed influent distributor (4) is matched and connected with the feeding end opening of the bent tube (5) in a removable way; and the end part of the bent tube (5) is matched and connected with the nozzle (6) in a removable way. The reversed V-shaped hot metal desulphurization spray gun has the advantages that the feeding intensity is high, the processing period is short, thus the reliability of the pneumatic magnesium conveying can be effectively guaranteed, and the process requirements can be ensured.
Description
Technical field
The utility model belongs to the ferrous metallurgy field, promptly in hot metal ladle molten iron is done the secondary desulfurization process field, relates in particular to a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun.
Background technology
Known is the spray gun structure that desulfurizing iron adopts with magnesium, or at submerged type spray gun channel exit band vaporizing chamber, or stillization chamber, but adopts the mixture of pulverous magnesium and passivator (lime, carbide of calcium, rhombspar etc.).Above-mentioned spray gun all has some inherent shortcomings, and is big such as the material consumption, and the sweetening agent specific absorption is low, and mechanical means and spray gun device complexity and benzene are heavy, and its result makes process complications, the desulphurization cost height.The spray gun of band vaporizing chamber under little (70 ~ 90t molten iron) situation of molten iron bale capacity successful solution in the vehicular bag, singly blow the problem of magnesium grain desulfurization.But in the large vol hot metal ladle during (more than the 160t molten iron) desulfurization, spray gun slips into the big what 2m of the degree of depth, vaporizing chamber is just no longer fulfiled the main function that makes magnesium vaporization, and when what large vol hot metal ladle processing molten iron (quite parameter) magnesium is in a liquid state because when 1300 ℃ of the high what 0.4Mpa of pressure, molten iron temperature.Simultaneously, there is the existence of vaporizing chamber can hinder magnesium, on the specific absorption that is embodied in sweetening agent that this also can be negative in the FR distribution of metal pool.Under this condition, must adopt the spray gun of stillization chamber.
Get spray gun that the desulfurization of known large vol hot metal ladle uses as prototype.The channel outlet of this spray gun is vertical.Removable refractory sleeve of spray gun exit passage equipment, its protection passage makes it not contact with molten iron.Must be noted that when channel outlet is vertical state the jet of the two phase flow that comes out from spray gun is air bubble-shaped, turn back at the access incisions place upwards.The favourable what molten iron in the cave that forms in the melt is poured into the porthole, and molten iron is very near apart from the porthole, just can contact often.Even these contacts can cause flow velocity slack-off the stopping of moment of two phase flow, this can facilitate the spray gun passage to stop up.
Adopt the desulfurization of large vol hot metal ladle when obtaining low-sulfur molten iron, must be a large amount of (100 kilograms and more than) magnesia mixture, import molten iron, this can cause the treatment time to prolong, because look fierce the degree of process and be limited in 8～10kg/min scope for magnesium intensity.The utilization ratio of magnesium has descended under this clear condition.Elongated that the treatment time can reduce spray gun work-ing life and labor capacity is safeguarded in increase.
The utility model content
The utility model is intended to overcome the deficiencies in the prior art part and the feeding strength height of a kind of particle magnesium material in molten iron is provided, the processing cycle is short, the reliability of magnesium material pneumatic transport can effectively guarantee easily to vaporize, the process of assurance meets processing requirement, simplify the spray gun remedial operation, guarantee that the hot metal ladle desulfurization has the very reverse V-shaped granule magnesium molten iron desulfuring spray gun of high target.
For achieving the above object, the utility model is achieved in that
Reverse V-shaped granule magnesium molten iron desulfuring spray gun comprises gun body; Described gun body comprises the skeleton of being furnished with refractory lining, places passage, materials flow divider and bend pipe in the gun body; The pan feeding port of described materials flow divider and the discharging port of passage connect; The discharging port of described materials flow divider and bend pipe pan feeding port connect.
In addition, the end of bend pipe described in the utility model can be furnished with nozzle.The outside of nozzle described in the utility model can be furnished with refractory sleeve.
For strengthening functions of use, the discharging port of materials flow divider described in the utility model and bend pipe pan feeding port detachably connect; The end and the nozzle of described bend pipe detachably connect.
Dual-phase jet is to cloth angle [alpha]≤15 of gun body longitudinal center line ° in the materials flow divider described in the utility model.
Bend pipe described in the utility model is to the 35 °≤β of angle of bend of gun body longitudinal center line≤50 °.
The direction of propulsion that the inside nominal diameter of the eyelet of materials flow divider described in the utility model, bend pipe and nozzle exports along dual-phase jet towards spray gun dwindles one by one.
The section area summation equals the interior sectional area of the passage inside nominal diameter in the gun body in each bend pipe described in the utility model.
The interior section area ratio of nozzle described in the utility model and bend pipe is 0.6～0.9.
Passage in the utility model gun body replenishes materials flow divider of equipment in the exit, some bend pipes and removable nozzle are all made separately independently parts; Dual-phase jet is not more than 15 ° to the distribution angle of the gun body longitudinal axis in the materials flow divider; Bend pipe is 35～50 ° to the angle of bend of the gun body longitudinal axis, the inside nominal diameter of the eyelet of materials flow divider, bend pipe and removable nozzle along dual-phase jet towards gun slot propulsive direction dwindle one by one; The summation of section area equates with the inside nominal diameter sectional area of spray gun passage in each bend pipe; Removable nozzle is 0.6～0.9 with the interior section area ratio of bend pipe.
The utility model improves 50～100% to the feeding strength that magnesia mixture imports molten iron, and the entire treatment cycle shortens 15～20%; Assurance make the magnesium material of easy vaporization stable enter molten iron; The molten iron containing quantity of handling with hot metal ladle can reach its volumetrical 95～97%; Simplify the spray gun maintenance and repair; Magnesium absorption rate height (more than 90%).
Spray gun structure of the present utility model and prior art contrasted show: the channel exit in the gun body replenishes and has equipped materials flow divider, bend pipe and removable nozzle, has all made separately independently parts.Dual-phase jet is not more than 15 ° to the distribution angle of gun body longitudinal center line in the materials flow divider.Bend pipe is 35～50 ° to the angle of bend of gun body longitudinal center line; The eyelet inside nominal diameter of materials flow divider, bend pipe and removable nozzle exports direction of propulsion and dwindles one by one along dual-phase jet towards spray gun.The section area summation equals the interior sectional area of the passage inside nominal diameter in the gun body in each bend pipe.The interior section area ratio of removable nozzle and bend pipe is 0.6～0.9.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.This practicality is new
The protection domain of type will not only be confined to the statement of following content.
Fig. 1 is the utility model spray gun substructure longitudinal diagram.
Embodiment
As shown in the figure, reverse V-shaped granule magnesium molten iron desulfuring spray gun comprises gun body; Described gun body comprises the skeleton 1 of being furnished with refractory lining 2, places passage 3, materials flow divider 4 and bend pipe 5 in the gun body; The pan feeding port of described materials flow divider 4 and the discharging port of passage 3 connect; The discharging port of described materials flow divider 4 and bend pipe 5 pan feeding ports connect.The end of described bend pipe 5 is furnished with nozzle 6.The outside of described nozzle 6 is furnished with refractory sleeve 7.The discharging port of described materials flow divider 4 and bend pipe 5 pan feeding ports detachably connect; The end of described bend pipe 5 and nozzle 6 detachably connect.Dual-phase jet is to cloth angle [alpha]≤15 of gun body longitudinal center line ° in the described materials flow divider 4.35 °≤the β of angle of bend of 5 pairs of gun body longitudinal center line of described bend pipe≤50 °.The direction of propulsion that inside nominal diameter d1, the d2 of the eyelet of described materials flow divider 4, bend pipe 5 and nozzle 6, d3 export along dual-phase jet towards spray gun dwindles one by one.The section area summation equals the interior sectional area of passage 3 inside nominal diameters in the gun body in described each bend pipe 5.The interior section area ratio of described nozzle 6 and bend pipe 5 is 0.6～0.9.
The utility model spray gun comprises the skeleton 1 of being furnished with refractory lining 2.There is passage 3 the gun body inside of spray gun, and the pan feeding port of materials flow divider 4 and the discharging port of passage 3 connect, and the discharging port of materials flow divider 4 and bend pipe 5 pan feeding ports connect.The end of bend pipe 5 is fixed with removable nozzle 6 with thread connecting mode.The outside of removable nozzle 6 is protected with removable refractory sleeve 7.
The mode of operation of the application's device is as follows: open the carrier gas steam supply valve, spray gun is slipped in the molten iron to the necessary degree of depth.Connect material feeder (not shown on the figure), particle magnesium enters the interior passage 3 of gun body by injection system (not shown on the figure), and enters into molten iron by materials flow divider 4, bend pipe 5 and removable nozzle 6 then.Behind the sweetening agent that imports necessary amounts, stop to carry rifle for magnesium, stop for carrier gas.
The essence of the application's device is as follows:
Passage in the gun body replenishes in the exit and has equipped materials flow divider, bend pipe and removable nozzle, all make separately independently parts, so just can be divided into two and two above materials flows to gas powder jet, because the guide point spreads out in the molten bath, thereby having improved feeding strength in molten iron, the process that guaranteed more meets processing requirement and the work reliably of nozzle otch and does not have molten iron and pour in.In addition, one section of dispensing system outlet is made into separately independently parts, and that has also improved spray gun is convenient to repair performance.
(that is to say that it is very much inappreciable that the resistance of this paragraph increases) when the angle [alpha] that the materials flow divider departs from the gun body longitudinal center line is not more than 15 °, pulsation, fluctuation that injection system is produced are tending towards minimum.
Bend pipe is 30～50 ° to the bent angle β of gun body longitudinal center line, make magnesium steam and carrier gas form in the molten iron treating processes bubble flow away from the nozzle mouth, bubble seldom may contact with the nozzle of spray gun is terminal when come-up, that is to say that the bubbling area of molten iron is removed by the side of nozzle mouth.Like this, time that nozzle contacts with molten iron and frequency are just quite few.In the life-span prolongation that is embodied in removable nozzle and refractory sleeve that this surely can be useful, significantly reduced the probability of the channel jam in the gun body.
The inside nominal diameter d1 of the eyelet of materials flow divider, bend pipe and removable nozzle, the direction of propulsion that d2, d3 export along dual-phase jet towards spray gun dwindles one by one, has so just improved the speed of spray gun exit two phase flow, thereby has avoided molten iron to pour in nozzle.
The total area in cross section equals the interior sectional area of the passage inside nominal diameter in the gun body in each bend pipe, so just make in the passage of dual-phase jet in gun body and the movement velocity in its each bend pipe and the concentration of solid phase in air-flow remain unchanged basically, this is the important factors that guarantees the injection system working reliability.
The interior section area of removable nozzle and bend pipe is adopting under the granular desulfuration agent desulfurization situation than less than 0.6 o'clock, can be because solid phase " scaffold " and make that shock resistance raises the passage main line in pipeline makes the nozzle obstruction then.
Bend pipe compares greater than 0.9 o'clock with the interior section area of removable nozzle, and then the speed of nozzle incision two phase flow has only raising slightly, thereby also unreasonable.
Nozzle is made removable, and couples together with threaded connector and bend pipe, just can make wearing and tearing the fast quick-detach of nozzle and renew.Nozzle dismounting and the method that renews are as follows: squeeze into the special-purpose rod of the taper that rib is arranged of a band handle in the nozzle that has worn and torn, nozzle just can be twisted from bend pipe and be taken off, and newer nozzle is screwed in the bend pipe.So just needn't dismantle whole spray gun place under repair, also needn't change the whole passage that has materials flow divider and bend pipe.Repair work can be carried out on station, only takies 5～10 minutes.
Laboratory study and practice all show: bend pipe is bad less than 30 ° of effects to the angle of bend of gun body longitudinal center line, and is far away inadequately because the molten iron bubbling area leaves the distance of nozzle mouth, still stops up the passage in the gun body easily.And when this angle of bend during greater than 50 °, the resistance of this section bend pipe can obviously increase, because the bending radius of bend pipe is subjected to the restriction of spray gun radius.The resistance that increases has " checking " effect to dual-phase jet, and (the carrier gas stream value depends on the fierce degree that imports the sweetening agent process) do not guarantee the necessary speed that can overcome the fluerics resistance in spray gun exit under the limited situation of carrier gas flux.
From above narration as seen, the application's device can guarantee stable particulate magnesium to be imported molten iron under large vol hot metal ladle condition, under the very big situation of sweetening agent consumption, also can guarantee the even bubbling of iron bath simultaneously.The maintenance and repair operation of spray gun is accelerated and simplified to this device.Simultaneously, molten iron dressing rate can reach 95～97% in the bag, and the magnesia mixture specific absorption is more than 90%, thereby has solved the problem that proposes, and has reached the technique effect of expection.
Claims (10)
1, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun comprises gun body, it is characterized in that: described gun body comprise be furnished with refractory lining (2) skeleton (1), place passage (3), materials flow divider (4) and bend pipe (5) in the gun body; The discharging port of the pan feeding port of described materials flow divider (4) and passage (3) connects; The discharging port of described materials flow divider (4) and bend pipe (5) pan feeding port connect.
2, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 1 is characterized in that: the end of described bend pipe (5) is furnished with nozzle (6).
3, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 2 is characterized in that: the outside of described nozzle (6) is furnished with refractory sleeve (7).
4, according to claim 2 or 3 described a kind of reverse V-shaped granule magnesium molten iron desulfuring spray guns, it is characterized in that: the discharging port of described materials flow divider (4) and bend pipe (5) pan feeding port detachably connect; The end of described bend pipe (5) and nozzle (6) detachably connect.
5, according to arbitrary described a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun of claim 1～3, it is characterized in that: dual-phase jet is to cloth angle [alpha]≤15 of gun body longitudinal center line ° in the described materials flow divider (4).
6, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 5 is characterized in that: described bend pipe (5) is to the 35 °≤β of angle of bend of gun body longitudinal center line≤50 °.
7, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 6 is characterized in that: the direction of propulsion that the inside nominal diameter (d1, d2, d3) of the eyelet of described materials flow divider (4), bend pipe (5) and nozzle (6) exports along dual-phase jet towards spray gun dwindles one by one.
8, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 7 is characterized in that: the interior section area summation of described each bend pipe (5) equals the interior sectional area of passage (3) inside nominal diameter in the gun body.
9, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 8 is characterized in that: the interior section area ratio of described nozzle (6) and bend pipe (5) is 0.6～0.9.
10, a kind of reverse V-shaped granule magnesium molten iron desulfuring spray gun according to claim 4 is characterized in that: the direction of propulsion that the inside nominal diameter (d1, d2, d3) of the eyelet of described materials flow divider (4), bend pipe (5) and nozzle (6) exports along dual-phase jet towards spray gun dwindles one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720185400XU CN201165544Y (en) | 2007-12-30 | 2007-12-30 | Reverse V-shaped granule magnesium molten iron desulfuring spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720185400XU CN201165544Y (en) | 2007-12-30 | 2007-12-30 | Reverse V-shaped granule magnesium molten iron desulfuring spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165544Y true CN201165544Y (en) | 2008-12-17 |
Family
ID=40190928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720185400XU Expired - Lifetime CN201165544Y (en) | 2007-12-30 | 2007-12-30 | Reverse V-shaped granule magnesium molten iron desulfuring spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165544Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469357B (en) * | 2007-12-30 | 2010-11-17 | 刘东业 | Reverse V-shaped granule magnesium molten iron desulfuring spray gun |
-
2007
- 2007-12-30 CN CNU200720185400XU patent/CN201165544Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469357B (en) * | 2007-12-30 | 2010-11-17 | 刘东业 | Reverse V-shaped granule magnesium molten iron desulfuring spray gun |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107619895B (en) | Device for blowing coal powder into blast furnace | |
| US10344343B2 (en) | Multiple chamber material-stirring lance and method | |
| CN101469357B (en) | Reverse V-shaped granule magnesium molten iron desulfuring spray gun | |
| CN104561452B (en) | Dust the device and method of single mouth vacuum deaeration refining molten steel at a kind of end | |
| CN201165544Y (en) | Reverse V-shaped granule magnesium molten iron desulfuring spray gun | |
| CN202440525U (en) | Multichannel hot metal pretreatment and desulfuration spray gun | |
| CN102517413A (en) | Multi-channel molten iron pretreatment desulfurization spray gun | |
| CN203079321U (en) | Powder particle delivery device | |
| CN206121615U (en) | Feeder apparatus is thrown to sewage treatment medicament | |
| CN201825976U (en) | Spray gun for desulphurizing granular magnesium molten iron | |
| CN202440526U (en) | Multichannel molten iron desulfurization spray gun | |
| CN201165534Y (en) | Granule magnesium molten iron desulfuring spray gun | |
| CN208250346U (en) | A kind of blast furnace metallurgy incidence mount | |
| CN202808862U (en) | Desulfuration spray gun | |
| CN101469358A (en) | Granule magnesium molten iron desulfuring spray gun | |
| CN201711240U (en) | Automatic guniting device | |
| CN112604483B (en) | Blockage removing device for wet desulphurization process | |
| CN102517421A (en) | Multichannel molten iron desulfurization spray gun | |
| CN114959158A (en) | Efficient desulfurization, desilicication and dephosphorization method for molten iron runner self-rotating flow | |
| CN211190682U (en) | Spraying device for converter oxygen lance anti-sticking fire-resistant coating | |
| CN201313921Y (en) | Nitrogen gas supply device | |
| CN201010670Y (en) | Magnesium granule blowing and desulphurizing device for molten iron | |
| CN209128480U (en) | Rotate vertical blow desulphurization spray gun | |
| CN2523765Y (en) | Device for desulfurizing molten iron in large ladle by blowing magnesium | |
| CN100482809C (en) | Method of molten iron desulfuring using magnesium in metal mixer and equipment for realizing said method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081217 Effective date of abandoning: 20071230 |