CN2652945Y - Long life single spray mouth deactivating magnesium desulfurizing spray gun - Google Patents
Long life single spray mouth deactivating magnesium desulfurizing spray gun Download PDFInfo
- Publication number
- CN2652945Y CN2652945Y CN 03254739 CN03254739U CN2652945Y CN 2652945 Y CN2652945 Y CN 2652945Y CN 03254739 CN03254739 CN 03254739 CN 03254739 U CN03254739 U CN 03254739U CN 2652945 Y CN2652945 Y CN 2652945Y
- Authority
- CN
- China
- Prior art keywords
- annulus
- spray gun
- rifle head
- riveting component
- rifle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
This utility model relates to a desulfurization spray gun with long-life passivation magnesium single spout which belongs to the spray blowing desulfurization technology field outside the furnace in the pretreatment of the molten iron prior to the converter steel-making. In the universal metal gun core structure with Ukraine passivation magnesium single spout, the desulfurization spray gun is supplemented with a double V-shaped riveting firmware (4), a protection ring (5), a V-shaped riveting firmware (6), a V-shaped strengthening riveting firmware (7), a gun head transitional protection ring (12), a gun head strengthening circle (14) and thermal conductivity fire-resistance powders (9) filled between a guide tube and a main tube, and the metal surface of the gun core is painted with a coating (13). The supplemented structure enhances the capability of the gun body and gun head fire-resistance against the desquamation, and at the same time the filling of the powder between the guide tube and the main tube improves the cross-section temperature uniformity of the desulfurization spray gun and the painted coating absorbs the thermal stress of the gun body, thereby decreasing the release of the head of the desulfurization spray gun from the through hole of the desulfurization spray gun and greatly increasing the life of the spray gun. The spray is simple in structure, convenient for the production, and is applied to the spray blowing desulfurization outside the furnace in the pretreatment of the molten iron prior to the steel-making of the converter.
Description
Affiliated technical field
The utility model relates to a kind of long-life single spout passivated magnesium desulphurization spray gun, and specifically a kind of spray gun that is used for iron ladle passivated magnesium blowing desulfurization belongs to the outer pretreated blowing desulfurization field of the preceding molten iron stove of converter steelmaking.
Background technology
At present, the employed single jet passivated magnesium of blowing desulfurization desulphurization spray gun outside the molten iron stove before the metallurgy industry converter steelmaking, its metal rifle core is made up of conduit, the person in charge, double-deck pole stiffening web and pole stiffening web torus, tilting column riveting component and winding-up mouth, weak point be because of consistency between the outer refractory materials of the metal rifle core of spray gun and rifle core relatively poor, occur that serious desulphurization spray gun rifle body peels off and perforation, rifle head come off and problem such as ablation, cause desulphurization spray gun shorter actual service life; Have only as Ukraine's passivated magnesium single port desulphurization spray gun average gun age of using on 220 tons of desulfurization hot-metal bottles of capital iron and steel group company two steelworkss 12～15 times/, the highest rifle only has 20 times/age, and average soak time is about 200 minutes/.
Summary of the invention
The purpose of this utility model is to provide a kind of long lifetime passivated magnesium single jet desulphurization spray gun simple in structure, easy to make, can improve the consistency between the outer refractory materials of metal rifle core and rifle core and the force-bearing situation of desulphurization spray gun rifle head and rifle body refractory materials, the speed that slow down that desulphurization spray gun rifle body peels off, perforation and rifle head comes off, ablates improves about 3 times the work-ing life of long lifetime desulphurization spray gun.
The utility model in order to achieve the above object; on the basis of Ukraine's passivated magnesium single port desulphurization spray gun rifle core; cancelled tilting column riveting component; one deck pole stiffening web and pole stiffening web torus; designed a kind of long lifetime passivated magnesium single jet desulphurization spray gun; by conduit (1); be responsible for (2); pole stiffening web (3); rifle body refractory materials (8); winding-up mouthful (10) and pole stiffening web torus (11) are formed; it is characterized in that also having additional double V shape riveting piece (4); protection annulus (5); V-arrangement riveting component (6); heat conduction refractory powder (9); rifle head over current protection annulus (12); coating (13) and riveting component and reinforcement annulus; heat conduction refractory powder (9) is filled in conduit (1) and is responsible between (2); protection annulus (5) is fixed on the top of V-arrangement riveting component (6); at the rifle core metal external coating that contacts with refractory materials coating (13) is arranged, be responsible for welding gun head riveting component and reinforcement annulus on the end face at the rifle head.
The utility model desulphurization spray gun; it is characterized in that described spray gun welding gun head riveting component on rifle head person in charge end face is: V-arrangement is strengthened riveting component (7) or single-column rifle head riveting component (15) or pole stiffening web extension riveting component (16) or transition single-column riveting component (17), and welding reinforcement annulus is on the rifle head person in charge end face: rifle head over current protection annulus (12) and rifle head reinforcement annulus (14).Pole stiffening web extension riveting component (16) has linear pattern and two kinds on outer tiltedly type.
The utility model desulphurization spray gun; it is characterized in that described spray gun welding gun head riveting component and reinforcement annulus on rifle head person in charge end face; can be V-arrangement to be strengthened riveting component (7) be welded on rifle head person in charge end face, rifle head over current protection annulus (12) be welded on the top, long limit that V-arrangement is strengthened riveting component (7).
The utility model desulphurization spray gun; it is characterized in that described spray gun welding gun head riveting component and reinforcement annulus on rifle head person in charge end face; can be the rifle head to be strengthened annulus (14) be welded on single-column rifle head reinforcement riveting component (15) top, rifle head over current protection annulus (12) be welded on pole stiffening web extension riveting component (16) top.
The utility model desulphurization spray gun; it is characterized in that described spray gun welding gun head riveting component and reinforcement annulus on rifle head person in charge end face; can be that rifle head over current protection annulus (12) is welded on transition single-column riveting component (17) top, the rifle head be strengthened annulus (14) and is welded on pole stiffening web extension riveting component (16) top.
The utility model desulphurization spray gun; protection annulus (5) diameter that it is characterized in that described spray gun is than the little 0～15mm of desulphurization spray gun rifle body diameter; circular rings spacing 50～250mm; rifle head over current protection annulus (12) diameter is also than the little 0～15mm of desulphurization spray gun rifle body diameter; the rifle head is strengthened annulus (14) diameter between nozzle diameter and guard circle ring diameter, is preferably the mean value of nozzle diameter and guard ring diameter.
The utility model desulphurization spray gun is characterized in that the opening direction of the V-arrangement reinforcement riveting component (7) of described spray gun becomes 40～70 ° angle parallel with the desulphurization spray gun axis.
The utility model desulphurization spray gun is characterized in that the silk footpath of protection annulus (5), rifle head over current protection annulus (12) and the rifle head reinforcement annulus (14) of described spray gun is 2～7mm.
The protection annulus (5) of the utility model design has changed the force-bearing situation that the desulfurization rifle uses initial stage gun body refractory materials, has improved the ability that refractory materials resistive connection structure peels off, and has reduced the perforation phenomenon that the longitudinal cracking of appropriate department's rifle body refractory materials causes; V-arrangement is strengthened riveting component (7), rifle head over current protection annulus (12) is strengthened the bonding force that annulus (14) has strengthened desulphurization spray gun spout place's refractory materials and rifle core with the rifle head, and the head that the has weakened desulphurization spray gun problem that comes off delays the ablation speed of rifle head metal rifle core; The use of rifle core metal top coat (13) makes to form a small gap through between the desulfurization rifle metal rifle core of overbaking and rifle body refractory materials, absorbs the different thermal stresses that cause with the refractory materials thermal expansivity of metal; Conduit and be responsible between fill the homogeneity that the heat conduction refractory powder helps to improve the temperature distribution of desulfurization rifle cross section, the formation that alleviates the longitudinal crack of desulphurization spray gun.Design protection annulus, V-arrangement and two V-arrangement transition riveting component, V-arrangement and strengthened riveting component, rifle head reinforcement annulus; and between the conduit and the person in charge, filled the good inorganic refractory powder of heat conductivility; at rifle core metal external coating one deck coating; these designs have alleviated the consistency difference between desulphurization spray gun rifle core metal material and the rifle body refractory materials and the desulfurization rifle that occurs peels off perforation and the head problem that comes off, thus the work-ing life of having improved desulphurization spray gun.
The utility model passivated magnesium single jet desulphurization spray gun is compared with normally used passivated magnesium single jet desulphurization spray gun has following advantage:
1, the utility model is simple in structure, and manufacture craft is suitable with passivated magnesium single jet desulphurization spray gun commonly used.
2, the utility model passivated magnesium single jet desulphurization spray gun is taken measures from multi-angle around long-lived target, the protection annulus that designs from structure improves the resistive connection structure peel-ability of refractory materials, the reinforcement riveting component of design and rifle head reinforcement annulus can improve the bonding strength between rifle head refractory materials and metal rifle core, slowing down the desulphurization spray gun head comes off and the ablation process, fill the temperature homogeneity that the heat conduction refractory powder can improve desulfurization rifle cross section at conduit and between being responsible in addition, can absorb the portion of hot stress that high temperature causes at rifle core metal external coating one deck organic coating; Thereby improved the actual service life of desulphurization spray gun greatly, made the utility model spray gun rifle improve about 3 times than normally used Ukraine service life of lance age.
Description of drawings
Further specify structure of the present utility model with accompanying drawing below.
Fig. 1 is a kind of structural representation of the long-lived passivated magnesium single jet of the utility model desulphurization spray gun, among the figure (1) be conduit, (2) for be responsible for, (3) to strengthen riveting component, (8) for V-arrangement riveting component, (7) for V-arrangement for double V shape riveting piece, (5) protection annulus, (6) for pole stiffening web, (4) be that pole stiffening web torus, (12) be rifle head over current protection annulus, (13) be rifle wicking surface organic coating with heat conduction refractory powder, (10) between being responsible for for spout, (11) for conduit for rifle body, (9).
Fig. 2 is the A-A cross-sectional schematic of Fig. 1 desulphurization spray gun structure.
Fig. 3,4 is for having the desulphurization spray gun structural representation of rifle head strengthening ring.Figure 3 shows that structure B desulphurization spray gun; the rifle cored structure is strengthened annulus for the rifle head and is welded on single-column rifle head riveting component (15) top, rifle head over current protection annulus (12) is welded on outer tiltedly type pole stiffening web extension riveting component (16) top, and (14) to strengthen annulus, (15) be single-column rifle head riveting component, (16) is pole stiffening web oblique type extension riveting component outward for the rifle head among the figure.
Figure 4 shows that the structure C desulphurization spray gun, the rifle cored structure is strengthened annulus (14) for the rifle head and is welded on linear pattern pole stiffening web extension riveting component (16) top, and rifle head over current protection annulus is welded on transition single-column riveting component (17) top.(16) are that linear pattern pole stiffening web extension riveting component, (17) are transition single-column riveting component among the figure.
Embodiment
The utility model passivated magnesium single jet desulphurization spray gun is described in further detail in conjunction with the embodiments:
Embodiment 1: adopt No. 45 carbon steel pipes and wire rod to make a collection of passivated magnesium single jet desulphurization spray gun; structure as shown in Figure 1; protection annulus (5) diameter is 330mm; silk footpath 4mm; guard circle ring spacing 120mm; rifle head over current protection annulus (12) and rifle body end face distance 2mm; diameter is 330mm; silk footpath 4mm, material all is siderochrome aluminium heating resisting metals, the V-arrangement angle of V-arrangement riveting component is 60 °; long limit is 60mm; minor face is 40mm, and V-arrangement is strengthened riveting component (7) and all adopted common wire rod with double V shape riveting piece (4), silk footpath 7mm; pole stiffening web torus (11) adopts common wire rod with pole stiffening web (3); fire resistant infilling is silicon carbide and the compound material of graphite between silk footpath 12mm, conduit and the person in charge, and organic coating is with the mixture brushing of a kind of petroleum products and coking by-products.Refractory materials is mullite-corundum castable.The desulphurization spray gun of producing is on probation at the steelworks desulfurization hot-metal bottle, average gun is 50～55 times/age, average soak time 730～850 minutes/is propped up with commonly used desulphurization spray gun average gun age 12～15 times/and average soak time 200min/ and to be compared, about 3 times of raising rifle ages.
Embodiment 2: adopt No. 15 carbon steel pipes to make the utility model desulphurization spray gun; structure such as Fig. 4; the guard circle ring diameter is 325mm; silk footpath 5mm; guard circle ring spacing 130mm, rifle head over current protection annulus (12) diameter is 325mm, silk footpath 5mm; with rifle body end face distance 5mm; it is 230mm that the rifle head is strengthened annulus (14) diameter, and silk footpath 5mm is with rifle body end face distance 2mm; various annulus all adopt siderochrome aluminium heating resisting metal; linear pattern pole stiffening web extension riveting component (16) diameter is 9.5mm, and material is a siderochrome aluminium heating resisting metal, double V shape riveting piece; V-arrangement is strengthened riveting component and is adopted siderochrome aluminium heating resisting metal; silk footpath 5mm, its concrete size is identical with embodiment 1 with other parts.Adopt mullite-corundum castable, the desulphurization spray gun of producing is on probation on the steelworks iron ladle, and rifle age is 56-79 time/, soak time be 800-1100 minute/prop up, prop up with average soak time 200min/ with commonly used desulphurization spray gun average gun age 12-15 time/and to compare, the raising life-span is more than 3 times.
The utility model long lifetime passivated magnesium single jet desulphurization spray gun is suitable for the desulfurizing spray gun for pretreating molten iron on the desulfurization hot-metal bottle.
Claims (8)
1. long lifetime passivated magnesium single jet desulphurization spray gun; by conduit (1); be responsible for (2); pole stiffening web (3); rifle body refractory materials (8); winding-up mouthful (10) and pole stiffening web torus (11) are formed; it is characterized in that also having additional double V shape riveting piece (4); protection annulus (5); V-arrangement riveting component (6); heat conduction refractory powder (9); coating (13); rifle head riveting component and reinforcement annulus; heat conduction refractory powder (9) is filled in conduit (1) and is responsible between (2); protection annulus (5) is fixed on the top of V-arrangement riveting component (6); at the rifle core metal external coating that contacts with refractory materials coating (13) is arranged, be responsible for welding gun head riveting component and reinforcement annulus on the end face at the rifle head.
2. desulphurization spray gun according to claim 1; it is characterized in that the welding gun head riveting component is on rifle head person in charge end face: V-arrangement is strengthened riveting component (7) or single-column rifle head riveting component (15) or pole stiffening web extension riveting component (16) or transition single-column riveting component (17), and welding reinforcement annulus is on the rifle head person in charge end face: rifle head over current protection annulus (12) and rifle head reinforcement annulus (14).
3. desulphurization spray gun according to claim 1; it is characterized in that being responsible for welding gun head riveting component and reinforcement annulus on the end face at the rifle head; can be V-arrangement to be strengthened riveting component (7) be welded on rifle head person in charge end face, rifle head over current protection annulus (12) be welded on the top, long limit that V-arrangement is strengthened riveting component (7).
4. desulphurization spray gun according to claim 1; it is characterized in that being responsible for welding gun head riveting component and reinforcement annulus on the end face at the rifle head; can be the rifle head to be strengthened annulus (14) be welded on single-column rifle head reinforcement riveting component (15) top, rifle head over current protection annulus (12) be welded on pole stiffening web extension riveting component (16) top.
5. desulphurization spray gun according to claim 1; it is characterized in that being responsible for welding gun head riveting component and reinforcement annulus on the end face at the rifle head; can be that rifle head over current protection annulus (12) is welded on transition single-column riveting component (17) top, the rifle head be strengthened annulus (14) and is welded on pole stiffening web extension riveting component (16) top.
6. desulphurization spray gun according to claim 1; it is characterized in that protecting annulus (5) diameter than the little 0～15mm of desulphurization spray gun rifle body diameter; circular rings spacing 50～250mm; rifle head over current protection annulus (12) diameter is also than the little 0～15mm of desulphurization spray gun rifle body diameter, and the rifle head is strengthened annulus (14) diameter between nozzle diameter and guard circle ring diameter.
7. desulphurization spray gun according to claim 1 is characterized in that the opening direction of V-arrangement reinforcement riveting component (7) becomes 40～70 ° angle parallel with the desulphurization spray gun axis.
8. desulphurization spray gun according to claim 1 is characterized in that the silk footpath of protecting annulus (5), rifle head over current protection annulus (12) and rifle head to strengthen annulus (14) is 2～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254739 CN2652945Y (en) | 2003-07-07 | 2003-07-07 | Long life single spray mouth deactivating magnesium desulfurizing spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254739 CN2652945Y (en) | 2003-07-07 | 2003-07-07 | Long life single spray mouth deactivating magnesium desulfurizing spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2652945Y true CN2652945Y (en) | 2004-11-03 |
Family
ID=34328508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03254739 Expired - Fee Related CN2652945Y (en) | 2003-07-07 | 2003-07-07 | Long life single spray mouth deactivating magnesium desulfurizing spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2652945Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564907A (en) * | 2019-10-14 | 2019-12-13 | 武汉科技大学 | High-efficiency rotary composite spray gun for molten iron desulphurization and application thereof |
-
2003
- 2003-07-07 CN CN 03254739 patent/CN2652945Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564907A (en) * | 2019-10-14 | 2019-12-13 | 武汉科技大学 | High-efficiency rotary composite spray gun for molten iron desulphurization and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107141002B (en) | Composite fiber reinforced refractory castable for desulfurization stirrer | |
| CN2652945Y (en) | Long life single spray mouth deactivating magnesium desulfurizing spray gun | |
| CN103008638B (en) | A kind of composite monolithic stopper rod and preparation method thereof | |
| CN104404186A (en) | Manufacturing method for functionally gradient material capable of reinforcing tuyere | |
| KR100402663B1 (en) | Indeterminate refractory and mounting repairer using the same | |
| CN101337210A (en) | Angle-inserting type hot metal pretreatment spray gun | |
| CN101338355A (en) | Argon-blowing spray gun for refining ladle and making method thereof | |
| CN114905033B (en) | Hot-metal bottle structure with heating function | |
| CN201144254Y (en) | Iron melt pretreatment spray gun | |
| CN2501885Y (en) | Long service life desulfurizing spray gun | |
| CN202730170U (en) | Novel non-steel adhesion converter sublance | |
| CN2630256Y (en) | Vaporizing chamber type long-life desulfurizing spray gun | |
| CN101786159B (en) | Slant-insert type molten iron pretreatment lance and manufacturing method thereof | |
| CN106319141A (en) | Energy-saving environment-friendly converter slag splashing and protecting slag adjusting method | |
| CN109622935B (en) | Molten iron slag removing plate and using method thereof | |
| CN212199308U (en) | Anti-cracking high-strength slag pot | |
| JP5489568B2 (en) | Gas injection nozzle | |
| CN2652511Y (en) | Spray gun for melten iron pretreatment | |
| CN221582025U (en) | Composite type torpedo tank lining heat insulation structure | |
| CN109457079A (en) | A kind of pneumatic steelmaking oxygen rifle | |
| CN210280660U (en) | Erosion-resistant anti-fracture stopper rod | |
| CN216192472U (en) | Sectional type composite desulfurization spray gun | |
| CN212894798U (en) | Desulfurization and recarburization composite spray gun for smelting reduction process | |
| CN203700416U (en) | High thermal shock resistant desulfurizing device | |
| CN201437543U (en) | Low-cost molten iron pretreatment spray lance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041103 |