CN105219908B - Molten iron high-efficiency desulfurization long-life anticlogging spray gun - Google Patents
Molten iron high-efficiency desulfurization long-life anticlogging spray gun Download PDFInfo
- Publication number
- CN105219908B CN105219908B CN201510682773.7A CN201510682773A CN105219908B CN 105219908 B CN105219908 B CN 105219908B CN 201510682773 A CN201510682773 A CN 201510682773A CN 105219908 B CN105219908 B CN 105219908B
- Authority
- CN
- China
- Prior art keywords
- gun
- spray gun
- section
- hole
- graphite
- 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.)
- Active
Links
Abstract
The invention discloses a kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun, it is made up of linkage section, body of a gun section and injection section, linkage section is made up of adpting flange and combination gun core successively, injection section includes the injection section body of a gun and is arranged on the pipette tips on injection section body of a gun top, and combination gun core is stretched into the middle part of pipette tips through whole body of a gun section and the injection section body of a gun；Combination gun core includes interpolation pipe, supervisor and reinforced pipe successively from the inside to the outside, and interpolation tube connector is provided with the inwall of reinforced pipe bottom, and interpolation pipe guiding device lower end offers hollow fixing groove, graphite injection tube is provided with fixing groove.The present invention, which realizes, prevents spray gun from blocking, is easy to the replacing of maintenance and plug members, extends spray gun service life, reduction spray gun maintenance cost and sorbent consumption, improves the synthesis purpose such as desulfurization production operational availability.
Description
Technical field
The present invention relates to molten iron preprocessing technical field, in particular to a kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun.
Background technology
Substantial amounts of research shows that molten iron pretreatment desulfurizing has been accepted as being that blast furnace converter-continuous casting flow reduces sulphur quality in steel
The most economical technique of fraction, it is one of important means for improving blast furnace and converter operation, is played an important role in steel-making, and
The direction pre-processed to comprehensive molten iron is developed.
According to document announcement, the molten iron spraying desulfurization spraying technique in modern steel metallurgical process is thrown with its technology maturation, equipment
Money saves and iron and steel enterprise's popularity application at home, and according to desulfurizing agent species and the difference of injection method, is divided into calcium base again
The modes such as desulfurizing agent injection, Mg-base desulfurizing agent composite blowing and the pure spray of metallic particles magnesium；Except small sections in pure metal spraying metal particles magnesium
For water pot desulfurizing iron using outside spray gun of the pipette tips with vaporizer, other techniques use single jet straight barrel type spray gun and inverted T-shaped
Or the two-nozzle gun of falling Y shape.Because the affinity of magnesium metal and sulphur is very strong, with desulphurizing ability is strong, reaction speed is fast, desulfurization slag
The features such as measuring less, be insensitive to molten iron the band quantity of slag and molten iron temperature, can skim in advance without molten iron, thus, there is molten iron
The advantages that blowing desulfurization time is short, desulphurization and slag skimming iron loss is low, hot metal temperature drop is small, just there is injection metal early in the seventies in last century
Grain magnesium or Mg-base desulfurizing agent carry out the report of desulfurizing iron, currently as the prevailing technology at home and abroad steel of molten iron spraying desulfurization spraying
Enterprise is commonly used.
" Wu Ming, iron water-magnesium desulfurization efficient research and application, Anhui is metallurgical, 2010, No1 " and document " house for document
Big dosage spray magnesium sulfur removal technology in Fu Qinke А Ф, bar Shi Makefu А М etc., ladle, steel-making, 2013, No6 " was reported respectively
Applications of the double spout spray guns of falling Y shape in road in the pure spray sulfur removal technology of molten iron magnesium-based composite blowing desulfurization and molten iron metallic particles magnesium
Effect, compared with former single jet straight barrel type spray gun, the application of double spout spray guns of falling Y shape, achieving improves blowing desulfurization dynamics
Condition, the excellent results for reducing sorbent consumption, shortening the blowing desulfurization time.Tested by exchange of technology and actual production, it is right
In the desulfurization of magnesium-based composite blowing and pure metal spraying metal particles magnesium desulfurization, compared with former single jet straight barrel type spray gun, the double spouts of Y shape are equal
In the presence of the problem of frequent is blocked, therefore, special imitate the conventional inverted T-shaped two-nozzle gun of molten iron calcium-based desulfurizing agent blowing desulfurization technique
Magnesium-based composite blowing and the pure spray desulfurization type approval test of metallic particles magnesium are carried out, spout is equally existed and blocks frequently deficiency,
During dredging spout hot using metal bar, it is found that spout tamper semi-molten state bonds jet wall, adhesive strength is big after cooling, gold
Category rod can not be dredged thoroughly, and 50 stoves of injection or so block.In view of the above-mentioned problems, special analyzed from the performance of magnesium metal,
The fusing point of magnesium metal is 651 DEG C, and boiling point is 1107 DEG C, if magnesium metal to be directly blown to high temperature liquid iron (generally 1300 DEG C of left sides
It is right) in carry out desulfurization, magnesium metal will be made to gasify to form HTHP magnesium steam bubble rapidly；In addition, at temperature >=670 DEG C, melt
The magnesium or magnesium steam of change state react with nitrogen-blow：3Mg+N2=Mg3N2；Due to spray gun spout during blowing desulfurization
The gas injection disturbance in region, the molten iron heat exchange in the region is enhanced, spout segmentum laterale is heated rapidly to the fusing point of magnesium metal
Temperature, even more high, for spout section Mg3N2Formation create condition, the Mg of formation3N2Particulate is in the presence of interfacial force
Constantly deposited to metal internal surface of nozzle, in addition, the impurity and its passivating film of metallic particles the magnesium shape after magnesium metal high-temperature gasification
Into residue, also can constantly it be deposited to metal internal surface of nozzle, bond strength is big after ultimately forming high temperature semi-molten state and cooling
Dry slag, cause spout dredging difficult, why at present this be also pure metal spraying metal particles magnesium or magnesium-based composite blowing desulfurizing iron
The main reason for spray gun still with single jet straight barrel type spray gun.In addition, it is compound with mixed injection desulfurization for calcium-based desulfurizing agent, one
As use inverted T-shaped or the two-nozzle gun of falling Y shape, also have using single jet straight barrel type spray gun, although being free of magnesium metal in desulfurizing agent,
Blocking spout problem is deposited in the absence of the pyroreaction thing of magnesium metal nozzle area, but in the violent panting of injection system pressure or de-
Sulphur agent is made moist under Sticking condition there is also spout clogging, but single jet straight barrel type spray gun anti-jamming performance is relatively excellent, once
There is the solidifying iron blocking of spout still to will be unable to carry out spout dredging and terminate use.
For injection section serious wear existing for conventional single jet straight barrel type spray gun and inverted T-shaped, the two-nozzle gun of falling Y shape and
Injection stream stock dissipates the deficiencies of bad, the patent No.：ZL201020183592.2 Chinese utility model patent discloses a kind of iron
Water pretreatment spray gun, is provided with flow-disturbing distributor in the pipette tips of the spray gun, and flow-disturbing distributor profile is drum organization, cydariform section
For circular or ellipsoidal structure, and the shunting groove of more than 2 is offered in bottom drum organization；Shunting groove is sprayed with spray gun
Mouth is arranged symmetrically for starting point on the drum organization wall of flow-disturbing distributor bottom；Shunting recess width gradually increases along opening direction
Greatly, rotation angle position is arc-shaped transitional surface structure.Utilize the diameter (radial ruler from below to up of flow-disturbing distributor drum organization bottom
It is very little) architectural feature that constantly increases, contain ascent rate component, improve the radial level flowing velocity component of injection, increase spray
The Radial Flow distance of carrier gas and pretreating agent is penetrated, when extending pretreating agent floating track, the residence time in molten iron and reaction
Between, pretreating agent utilization ratio is improved, reduces pretreating agent consumption and molten iron pretreatment cost；Meanwhile it is carrier gas and pretreatment
Agent provides enough radial strokes in the radial direction cohesion of floating transition stage, delays the flowing of floating cohesion to spray gun fire proofed wood spray gun
The erosive wear in lining face, reduce the thermal stress increase caused by the enhancing that exchanges heat of spray gun part rifle lining and broken with thermal stress longitudinal crack
Damage, extend spray gun service life.It is recessed by being shunted using semicircle or half elliptic cross section of the spray gun spout as starting point radially outward
The induced flow effect of groove, breaks up injection stream stock, improves the dispersion mixing of injection stream stock area and pretreating agent, and extension is pre-
Inorganic agent response area and reaction mass transfer speed, improve pretreating agent utilization rate.According to document " Yao Nianchun, singly-blowing magnesium grain iron
The inspection of magnesium granularity is with checking and accepting in water sulfur removal technology, and mechanical engineering and automation, 2014, No6 " reports, granular magnesium mobility was closed
Lattice are to ensure not block up one of condition of rifle and desulfurization kinetics, and vertical injection stream stock is formed 70~80mm's in molten iron
Hole, ensure the contact area of granular magnesium and molten iron.As can be seen here, the semicircle or half elliptic cross section point designed in above-mentioned patent
Stream groove can only play the induction deflecting effect of floating air-flow, it is difficult to have the function that to flow stock stock, dynamic conditions, which improves, to be had
Limit.
Summary is visible, and for molten iron spraying desulfurization spraying, single jet straight barrel type spray gun is not easy stifled rifle, but the injection of single current stock is de-
Sulphur dynamic conditions is poor；Although can obviously improve desulfurization kinetics condition for double spout inverted T-shapeds or the spray gun of falling Y shape, easily go out
The pure spray of existing spout clogging, especially metallic particles magnesium and magnesium-based composite blowing desulfurizing iron, because magnesium metal is anti-in spout
The deposit adhesion of product is answered, spout clogging is very frequent, and because of the adhesion of reaction product high temperature semi-molten and normal temperature cure
Bonding, the cleaning of reactant dry slag is caused to be dredged with spout very difficult.How molten iron spraying desulfurization spraying dynamic conditions is being ensured
On the basis of, it is one of important research direction of current molten iron spraying desulfurization spraying to prevent spout from blocking, extend spray gun service life, especially
It is the pure spray of molten iron metallic particles magnesium or magnesium-based composite blowing desulfurization.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun；The spray gun
Can be with anti-blocking, it has, and simple in construction, preparation is easy, maintenance is simple and direct, service life is long, blowing desulfurization reacting dynamics condition
The features such as excellent, injection is stably, desulfurizing agent utilization ratio is high.
In order to solve the above technical problems, a kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun provided by the invention, it is by even
Connect section, body of a gun section and injection section composition, the linkage section to be made up of adpting flange and combination gun core successively, the body of a gun section and spray
It is to be poured into fire proofed wood spray gun to serve as a contrast by refractory material to blow a section outer wall；The injection section includes the injection section body of a gun and is arranged on injection
The pipette tips on section body of a gun top, the combination gun core are stretched into the middle part of pipette tips through whole body of a gun section and the injection section body of a gun；It is described compound
Rifle core includes interpolation pipe, supervisor and reinforced pipe successively from the inside to the outside, and being provided with interpolation pipe on the inwall of the reinforced pipe bottom draws
Device is led, the interpolation pipe guiding device lower end offers hollow fixing groove, and graphite injection tube, institute are provided with the fixing groove
State supervisor to be fixed on the inwall of interpolation pipe guiding device upper end, the interpolation pipe is inserted into graphite spray through interpolation pipe guiding device
In blowpipe, the interpolation pipe bottom end face is concordant with graphite injection tube bottom end face, the graphite injection tube bottom end face
Be provided with the central through hole coaxial with graphite injection tube, and central through hole stretches into pipette tips bottom, the graphite injection tube and
In central through hole parcel fire proofed wood spray gun lining, the graphite injection bottom of the tube offers 2~3 horizontal channels, the level
Conduit is arranged symmetrically centered on central through hole, and horizontal channel communicates with central through hole.
Further, the section of the central through hole is the trapezium structure that gradually increases, the central through hole bottom surface it is straight
Footpath d is more than graphite injection tube outer diameter D, d=1.2~2.0D.
Yet further, the horizontal channel cross section is up-small and down-big trapezium structure, horizontal channel highly for 30~
100mm, channel width are 0.5~1d.
Yet further, the interpolation pipe guiding device be inner hollow boss shape cylinder, the interpolation pipe guiding device
In boss insertion reinforced pipe and it is fixed on reinforcement inside pipe wall；The interpolation pipe guiding device upper-center offers straight from top to bottom
Footpath is gradually reduced three sections of staged through holes, and the staged through hole connects with the fixing groove of its lower end, the fixing groove diameter ratio
Big 0.5~the 1mm of graphite spout external diameter.
Yet further, the staged through hole is from top to bottom successively by large straight via hole, bellmouth and small straight passage hole；It is described
Large straight via hole diameter is bigger 0.5~1.5mm than supervisor's external diameter, and the supervisor is fixed on large straight via hole inwall, the bellmouth top
The diameter of end face is identical with supervisor's internal diameter；The diameter of its lower surface is identical with the diameter of small straight passage hole, the small straight passage hole diameter
It is bigger 0.5~1mm than interpolation pipe external diameter.
Yet further, the horizontal channel is painted with carbonaceous slag adhesion coating, the level trough with central through hole inwall
The distance L of road lower surface and pipette tips bottom surface is 100~200mm.
Yet further, the up-small and down-big round estrade of clear opening is provided with centered on the graphite injection tube；It is described
The straight-through bore dia of graphite injection tube is bigger 0.5~1mm than interpolation pipe external diameter.
Yet further, the pipette tips profile is cylinder or up-small and down-big tubaeform round estrade structure.
Yet further, the combination gun core and interpolation pipe guiding device are uniformly fixed with metal anchorage, the reinforced pipe
Anchoring piece is uniformly fixedly connected with bottom end face, reinforcement anchoring piece, the fire proofed wood spray gun are welded with the connection anchoring element
Lining covering metal anchorage, connection anchoring element and reinforcement anchoring piece.
The beneficial effects of the present invention are：
1) present invention is directed to during molten iron spraying desulfurization spraying that single jet straight barrel type spray gun anti-jamming performance is more excellent and blowing desulfurization
Reacting dynamics condition is poor and double spout inverted T-shapeds and the spray gun anti-jamming of falling Y shape poor-performing and blowing desulfurization kinetics
The preferable contradictory problems of condition, by being drawn by interpolation pipe, supervisor, reinforced pipe, metal anchorage, fire proofed wood spray gun lining, interpolation pipe
Lead the single jet straight barrel type spray gun of the compositions such as device, graphite injection tube and combining structure that special construction pipette tips are connected as a single entity, protect
Hold the conventional preferable anti-blocking performance of single jet straight barrel type spray gun；
2) present invention passes through by groups such as centre bore, horizontal channel, connection anchoring element, reinforcement anchoring piece, fire proofed wood spray gun linings
Into pipette tips special construction design and dependency structure parameter optimization, i.e.,：Centre bore is coaxially to be communicated with graphite injection tube
Up-small and down-big through hole, center-hole diameter d is more than graphite injection tube outer diameter D, is (1.2~2.0) D, horizontal channel by 2 or
3 conduit compositions, are uniformly distributed, horizontal channel centered on graphite injection tube, along graphite injection tube bottom surface radial level
Highly it is that 30~100mm, channel width are (0.5~1) d, ensure that graphite injection tube is unimpeded to horizontal channel；Pass through water
Lower surface rise as high as the banks to the hydrostatic pressure that pipette tips sole length L is 100~200mm, prevents graphite injection tube injection stream stock
From the outflow of centre bore, the pressure shunting of single stream stock is realized, reaches the desulphurization kinetics condition that improves, prevent conventional pair
Spout inverted T-shaped and the easily stifled purpose of the spray gun of falling Y shape；Meanwhile conduit lower surface to pipette tips sole length L be 100~200mm structures
Design, improves pipette tips fire proofed wood spray gun lining comprehensive strength and resisting breakage ability, and stable performance special construction pipette tips are anti-to desulfurization
Answer the improvement result of dynamic conditions.Insert in graphite injection tube through supervisor, interpolation pipe guiding device by interpolation pipe, and make
Interpolation pipe lower surface is concordant with graphite injection tube lower surface, ensure that the isometrical channel design of linear pattern of injection runner, reduces
Flow resistance is blown, is easy to replacing during interpolation blockage, while prevents the inner wall abrasion of graphite injection tube, ensures injection stream
The stability of field.By interpolation pipe conductor structure and the design of installation fixed form, it is easy to the insertion of interpolation pipe to install with taking out
Go out to change, avoid interpolation pipe dry slag and coagulate spray gun consumption caused by iron blocking, meanwhile, ensure the air-tightness of spray gun runner, improve
Spray gun intensity and rigidity.By the structure design of special construction pipette tips centre bore with it is dimensionally-optimised, ensure that graphite injection tube
The convenient construction changed online, avoid graphite injection tube dry slag and coagulate spray gun consumption caused by iron blocking.Pass through horizontal channel
Cross section up and down under the design of big trapezium structure, reduce the stream stock flow dividing resistance of horizontal channel, improve the strong of injection stream stock
Shunting effect processed；Carbonaceous slag adhesion coating is painted with by horizontal channel and center bore inner wall, has delayed horizontal channel and center
Internal surface of hole dry slag speed, dry slag cleaning difficulty is reduced, so as to ensure that conduit forces shunting effect.
3) present invention is cylinder or up-small and down-big tubaeform round estrade structure design by pipette tips profile, is further carried
The mechanical strength and resisting breakage ability of high special pipette tips, reach the purpose for extending spray gun service life.
In summary, the present invention has taken into account single jet straight barrel type spray gun and double spout inverted T-shapeds by the improvement of said structure
The advantages of with the spray gun of falling Y shape, the intrinsic deficiency of various spray guns is compensate for, the spray gun of guarantee is blown the unimpeded of runner, significantly carried
The high synthesis performance of spray gun；Meanwhile pass through interpolation pipe, graphite injection tube, the structure and arrangement of special construction pipette tips
, there is the solidifying iron of interpolation pipe, graphite injection tube under the conditions of unusual service condition in the design of mode or dry slag blocks, and can also facilitate
Implement interpolation pipe and the replacing of graphite injection tube, so as to ensure the unimpeded of spray gun injection runner, the spray gun blocking strips avoided are come
Spray gun consumption；Carbonaceous slag adhesion coating is painted with by horizontal channel and center bore inner wall, has delayed horizontal channel and center
Internal surface of hole dry slag speed, dry slag cleaning difficulty is reduced, be always ensured that the unobstructed of split channel, it is stable to improve desulfurizing iron reaction
Dynamic conditions.As can be seen here, the present invention, which realizes, prevents spray gun from blocking, is easy to safeguard that replacing, extension with plug members are sprayed
Rifle service life, reduce spray gun maintenance cost
With sorbent consumption, improve the comprehensive purpose such as desulfurization production operational availability.
Brief description of the drawings
Fig. 1 is that the B-B sections that the profile of pipette tips 8 of the present invention is the molten iron high-efficiency desulfurization long-life anticlogging spray gun of cylinder show
It is intended to；
Fig. 2 is that the C-C sections that the profile of pipette tips 8 of the present invention is the molten iron high-efficiency desulfurization long-life anticlogging spray gun of cylinder show
It is intended to；
Fig. 3 is that the profile of pipette tips 8 of the present invention is the molten iron high-efficiency desulfurization longevity of up-small and down-big tubaeform round estrade structure
Order the schematic elevation view of anticlogging spray gun；
Fig. 4 is the D-D diagrammatic cross-sections of Fig. 1 double channel structure pipette tips；
Fig. 5 is the D-D diagrammatic cross-sections of Fig. 1 three channel structure pipette tips
Fig. 6 is Fig. 2 upward view；
Fig. 7 is the E-E diagrammatic cross-sections of Fig. 3 double channel structure pipette tips；
Fig. 8 is the E-E diagrammatic cross-sections of Fig. 3 three channel structure pipette tips；
Fig. 9 is A partial enlarged drawings in Fig. 1；
In figure, linkage section 1, adpting flange 1.1, body of a gun section 2, injection section 3, the injection section body of a gun 3.1, pipette tips 3.2, combination gun
Core 4, interpolation pipe 4.1, supervisor 4.2, reinforced pipe 4.3, fire proofed wood spray gun lining 5, interpolation pipe guiding device 6, fixing groove 6.1, staged
Through hole 6.2, large straight via hole 6.21, bellmouth 6.22, small straight passage hole 6.23, graphite injection tube 7, central through hole 8, horizontal channel
9th, carbonaceous slag adhesion coating 10, metal anchorage 11, connection anchoring element 12, reinforcement anchoring piece 13.
Embodiment
In order to preferably explain the present invention, below in conjunction with the specific embodiment main contents that the present invention is furture elucidated, but
Present disclosure is not limited solely to following examples.
Embodiment 1：
As shown in Fig. 1,2,4,6 and 9：A kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun, it is by linkage section 1, body of a gun section 2
Formed with injection section 3, linkage section 1 is made up of adpting flange 1.1 and combination gun core 4 successively, and body of a gun section 2 and the injection outer wall of section 3 are
Poured by refractory material into fire proofed wood spray gun lining 5；Injection section 3 includes the injection section body of a gun 3.1 and is arranged on the injection section body of a gun 3.1
The pipette tips 3.2 on top, the profile of pipette tips 3.2 are cylinder；
Combination gun core 4 stretches into the middle part of pipette tips 3.2 through whole body of a gun section 2 and the injection section body of a gun 3.1；Combination gun core 4 is by interior
To including interpolation pipe 4.1, supervisor 4.2 and reinforced pipe 4.3 successively outside,
Interpolation pipe guiding device 6 is the boss shape cylinder of inner hollow, and the boss of interpolation pipe guiding device 6 inserts reinforced pipe 4.3
Interior and full weld is on the inwall of reinforced pipe 4.3；The upper-center of interpolation pipe guiding device 6 offers diameter from top to bottom and is gradually reduced three sections
Staged through hole 6.2, the lower end of interpolation pipe guiding device 6 offer hollow fixing groove 6.1, staged through hole 6.2 and its lower end
Fixing groove 6.1 connects, and the diameter of fixing groove 6.1 is bigger 0.5~1mm than graphite spout external diameter, passes through brushing resin in fixing groove 6.1
Bonding agent is provided with graphite injection tube 7；
4.2 full welds are responsible on the inwall of the upper end of interpolation pipe guiding device 6, interpolation pipe 4.1 inserts through interpolation pipe guiding device 6
To graphite injection tube 7, the up-small and down-big round estrade of clear opening is provided with centered on graphite injection tube 7；Graphite is sprayed
The straight-through bore dia of blowpipe 7 is bigger 0.5~1mm than the external diameter of interpolation pipe 4.1.
The bottom end face of interpolation pipe 4.1 is concordant with the bottom end face of graphite injection tube 7, and the bottom end face of graphite injection tube 7 is set
The central through hole 8 coaxial with graphite injection tube 7 is equipped with, and central through hole 8 stretches into the bottom of pipette tips 3.2, the He of graphite injection tube 7
Central through hole 8 is wrapped up in fire proofed wood spray gun lining 5, and the bottom of graphite injection tube 7 offers 2 horizontal channels 9, horizontal channel 9 with
It is arranged symmetrically centered on central through hole 8, and horizontal channel 9 communicates with central through hole 8.
Staged through hole 6.2 is from top to bottom successively by large straight via hole 6.21, bellmouth 6.22 and small straight passage hole 6.23；It is big straight
The diameter of through hole 6.21 is bigger 0.5~1.5mm than 4.2 external diameters of supervisor, and supervisor 4.2 is fixed on the inwall of large straight via hole 6.21, bellmouth
The diameter of 6.22 top end faces is identical with 4.2 internal diameters of supervisor；The diameter of its lower surface is identical with the diameter of small straight passage hole 6.23, small straight
The diameter of through hole 6.23 is bigger 0.5~1mm than interpolation pipe external diameter.
The section of central through hole 8 is the trapezium structure gradually increased, and the diameter d of the bottom surface of central through hole 8 sprays more than graphite
Blowpipe outer diameter D, d=1.2~2.0D.
The cross section of horizontal channel 9 is up-small and down-big trapezium structure, and the height of horizontal channel 9 is 30~100mm, channel width
For 0.5~1d.
Horizontal channel 9 is painted with carbonaceous slag adhesion coating 10, the lower surface of horizontal channel 9 and pipette tips with the inwall of central through hole 8
The distance L of 3.2 bottom surfaces is 100~200mm.
Combination gun core 4 and the uniform welding of interpolation pipe guiding device 6 have a metal anchorage 11, on the bottom end face of reinforced pipe 4.3
It is even to be welded to connect anchoring piece 12, it is welded with connection anchoring element 12 and strengthens anchoring piece 13, the covering metal anchoring of fire proofed wood spray gun lining 5
Part 11, connection anchoring element 12 and reinforcement anchoring piece 13.
Connection anchoring element 12 is made up of more poles or steel bar, is strengthened anchoring piece 13 and is anchored by single-turn or multi-turn circular ring structure
Part is formed,
Embodiment 2
As shown in Fig. 1,2,5 and 9：The present embodiment and the structure of embodiment 1 are essentially identical, and difference is：
Horizontal channel 9 is three channel structures.
Embodiment 3
As shown in Fig. 3,7,8, a kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun, the structure of the present embodiment and embodiment 1
Essentially identical, difference is：
The profile of pipette tips 3.2 is up-small and down-big tubaeform round estrade structure.
Other unspecified parts are prior art.Although above-described embodiment is made that to the present invention and retouched in detail
State, but it is only part of the embodiment of the present invention, rather than whole embodiments, people can also according to the present embodiment without
Other embodiment is obtained under the premise of creativeness, these embodiments belong to the scope of the present invention.
Claims (6)
1. a kind of molten iron high-efficiency desulfurization long-life anticlogging spray gun, it is made up of linkage section (1), body of a gun section (2) and injection section (3),
The linkage section (1) is made up of adpting flange (1.1) and combination gun core (4) successively, and the body of a gun section (2) and injection section (3) are outside
Wall is to be poured into fire proofed wood spray gun to serve as a contrast (5) by refractory material；It is characterized in that：The injection section (3) includes the injection section body of a gun
(3.1) and the pipette tips (3.2) for being blown the section body of a gun (3.1) top are arranged on, the combination gun core (4) runs through whole body of a gun section (2)
Stretched into the injection section body of a gun (3.1) in the middle part of pipette tips (3.2)；The combination gun core (4) includes interpolation pipe successively from the inside to the outside
(4.1) (4.2) and reinforced pipe (4.3), are responsible for, interpolation pipe guiding device is installed on the inwall of reinforced pipe (4.3) bottom
(6), interpolation pipe guiding device (6) lower end offers hollow fixing groove (6.1), and stone is provided with the fixing groove (6.1)
Black matter injection tube (7), the supervisor (4.2) are fixed on the inwall of interpolation pipe guiding device (6) upper end, the interpolation pipe (4.1)
It is inserted into through interpolation pipe guiding device (6) in graphite injection tube (7), interpolation pipe (4.1) bottom end face sprays with graphite
Blowpipe (7) bottom end face is concordant, and graphite injection tube (7) bottom end face is provided with coaxial with graphite injection tube (7)
Central through hole (8), and central through hole (8) stretches into pipette tips (3.2) bottom, the graphite injection tube (7) and central through hole (8) bag
Wrap up in fire proofed wood spray gun lining (5), graphite injection tube (7) bottom offers 2~3 horizontal channels (9), the level trough
Road (9) is arranged symmetrically centered on central through hole (8), and horizontal channel (9) communicates with central through hole (8)；The central through hole
(8) section is the trapezium structure gradually increased, and the diameter d of central through hole (8) bottom surface is more than graphite injection tube external diameter
D, d=(1.2~2.0) D；Horizontal channel (9) cross section is up-small and down-big trapezium structure, and horizontal channel (9) is highly
30~100mm, channel width are (0.5~1) d；The interpolation pipe guiding device (6) be inner hollow boss shape cylinder, institute
State in interpolation pipe guiding device (6) boss insertion reinforced pipe (4.3) and be fixed on reinforced pipe (4.3) inwall；The interpolation pipe draws
Lead device (6) upper-center and offer diameter from top to bottom and be gradually reduced three sections of staged through holes (6.2), the staged through hole
(6.2) connected with the fixing groove (6.1) of its lower end, fixing groove (6.1) diameter is bigger 0.5~1mm than graphite spout external diameter.
2. molten iron high-efficiency desulfurization long-life anticlogging spray gun according to claim 1, it is characterised in that：The staged through hole
(6.2) from top to bottom successively by large straight via hole (6.21), bellmouth (6.22) and small straight passage hole (6.23)；The large straight via hole
(6.21) diameter is bigger 0.5~1.5mm than supervisor's (4.2) external diameter, and the supervisor (4.2) is fixed on large straight via hole (6.21) inwall
On, the diameter of bellmouth (6.22) top end face is identical with supervisor (4.2) internal diameter；The diameter and small straight passage hole of its lower surface
(6.23) diameter is identical, and small straight passage hole (6.23) diameter is bigger 0.5~1mm than interpolation pipe external diameter.
3. molten iron high-efficiency desulfurization long-life anticlogging spray gun according to claim 1, it is characterised in that：The horizontal channel
(9) carbonaceous slag adhesion coating (10), horizontal channel (9) lower surface and pipette tips (3.2) are painted with central through hole (8) inwall
The distance L of bottom surface is 100~200mm.
4. molten iron high-efficiency desulfurization long-life anticlogging spray gun according to claim 1, it is characterised in that：The graphite injection
The up-small and down-big round estrade of clear opening is provided with centered on pipe (7)；In the straight-through bore dia ratio of the graphite injection tube (7)
It is intubated the big 0.5~1mm of (4.1) external diameter.
5. molten iron high-efficiency desulfurization long-life anticlogging spray gun according to claim 1, it is characterised in that：The pipette tips (3.2)
Profile is cylinder or up-small and down-big tubaeform round estrade structure.
6. molten iron high-efficiency desulfurization long-life anticlogging spray gun according to claim 1, it is characterised in that：The combination gun core
(4) and interpolation pipe guiding device (6) is uniformly fixed with metal anchorage (11), uniformly consolidates on reinforced pipe (4.3) bottom end face
Determine connection anchoring element (12), be welded with the connection anchoring element (12) and strengthen anchoring piece (13), the fire proofed wood spray gun serves as a contrast (5)
Cover metal anchorage (11), connection anchoring element (12) and strengthen anchoring piece (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682773.7A CN105219908B (en) | 2015-10-20 | 2015-10-20 | Molten iron high-efficiency desulfurization long-life anticlogging spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682773.7A CN105219908B (en) | 2015-10-20 | 2015-10-20 | Molten iron high-efficiency desulfurization long-life anticlogging spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105219908A CN105219908A (en) | 2016-01-06 |
| CN105219908B true CN105219908B (en) | 2018-01-16 |
Family
ID=54989174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510682773.7A Active CN105219908B (en) | 2015-10-20 | 2015-10-20 | Molten iron high-efficiency desulfurization long-life anticlogging spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105219908B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319152B (en) * | 2016-10-28 | 2018-05-04 | 无锡市富能金属制品有限公司 | A kind of anticlogging iron melt pretreating spray gun |
| CN108315527A (en) * | 2018-04-19 | 2018-07-24 | 广东新兴铸管有限公司 | A kind of magnesium grain blowing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2873792Y (en) * | 2005-11-03 | 2007-02-28 | 武汉科技大学 | External pretreating jet gun for molten iron furnace |
| CN101037717A (en) * | 2007-04-27 | 2007-09-19 | 武汉钢铁(集团)公司 | Molten iron spraying desulfurization spraying gun |
| CN201132840Y (en) * | 2007-11-23 | 2008-10-15 | 四川龙蟒集团有限责任公司 | Lance for hot metal magnesium-blowing desulfurating |
| CN204111803U (en) * | 2014-11-05 | 2015-01-21 | 武汉钢铁(集团)公司 | There is the hot metal pretreatment spray gun of diversion trench spout structure |
-
2015
- 2015-10-20 CN CN201510682773.7A patent/CN105219908B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2873792Y (en) * | 2005-11-03 | 2007-02-28 | 武汉科技大学 | External pretreating jet gun for molten iron furnace |
| CN101037717A (en) * | 2007-04-27 | 2007-09-19 | 武汉钢铁(集团)公司 | Molten iron spraying desulfurization spraying gun |
| CN201132840Y (en) * | 2007-11-23 | 2008-10-15 | 四川龙蟒集团有限责任公司 | Lance for hot metal magnesium-blowing desulfurating |
| CN204111803U (en) * | 2014-11-05 | 2015-01-21 | 武汉钢铁(集团)公司 | There is the hot metal pretreatment spray gun of diversion trench spout structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105219908A (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104827019B (en) | Automatic ladle drainage device | |
| CN104388624B (en) | Direct injection molten iron desulphurization spray gun | |
| CN102071272B (en) | Method for blowing out blast furnace | |
| CN203096107U (en) | Blowing desulfurization spray gun for torpedo ladle | |
| CN105219908B (en) | Molten iron high-efficiency desulfurization long-life anticlogging spray gun | |
| CN209974818U (en) | Device for modifying slag powder spraying and separating slag and steel during converter tapping | |
| CN105219909B (en) | Molten iron desulfuring spray gun is directly blown for magnesium desulfurizer | |
| CN201924035U (en) | Swirl bottom-blowing air supply element for combined blown converter | |
| CN105274271B (en) | Molten iron spraying desulfurization spraying spout anticlogging spray gun | |
| CN101007340A (en) | Processing method of continuous casting tundish for reducing residual molten steel | |
| CN105331773A (en) | Anti-blocking molten iron blowing desulfurization spray gun with multi-strand cyclone dispersion function | |
| CN105401048B (en) | A kind of inexpensive preparation process for reducing Q345B/C banded structures | |
| CN204111803U (en) | There is the hot metal pretreatment spray gun of diversion trench spout structure | |
| CN104342532A (en) | Molten iron pure spray particle magnesium desulfurization spray gun with vaporizing chamber in spearhead and preparation method of molten iron pure spray particle magnesium desulfurization spray gun | |
| CN206359555U (en) | The vertical blow desulphurization spray gun of rotation | |
| CN206794743U (en) | M type slag blocking walls for continuous casting production | |
| CN104711395A (en) | High-performance spray gun for molten iron injection pretreatment | |
| CN210796513U (en) | Blast furnace foundation gas leakage plugging structure | |
| CN203238298U (en) | Torpedo ladle desulfurization spray gun with multi-segment nozzle structure | |
| CN207857846U (en) | A kind of tundish upper nozzle | |
| CN206529492U (en) | Porous side-spraying type desulfuration spray gun | |
| CN204975304U (en) | KR stirs hot metal bottle | |
| CN108213401A (en) | The method at the metallurgical mouth of a river and molding casting of molding casting | |
| CN220432880U (en) | Equipment for deep dephosphorization of converter | |
| CN214079233U (en) | Long-life ladle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170710 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Applicant after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Applicant before: Wuhan Iron & Steel (Group) Corp. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |