CN201437543U - Low-cost molten iron pretreatment spray lance - Google Patents
Low-cost molten iron pretreatment spray lance Download PDFInfo
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- CN201437543U CN201437543U CN2009200861522U CN200920086152U CN201437543U CN 201437543 U CN201437543 U CN 201437543U CN 2009200861522 U CN2009200861522 U CN 2009200861522U CN 200920086152 U CN200920086152 U CN 200920086152U CN 201437543 U CN201437543 U CN 201437543U
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- spray gun
- rifle
- lining
- lance
- refractory
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Abstract
The utility model discloses a low-cost molten iron pretreatment spray lance which comprises a metal lance core and a refractory lance liner compounded on the outer wall of the metal lance core. The metal lance core mainly comprises a central manifold and a reinforcement sleeve which are assembled together; blow ports are arranged at the bottoms of the central manifold and the reinforcement sleeve; riveting pieces are arranged among the central manifold, the reinforcement sleeve and the refractory lance liner; the refractory lance liner consists of a lower submerged segment and an upper exposed segment which are made of different materials and are spliced with each other by taking the molten iron level at the time of blowing as the interface; the upper exposed segment of the refractory lance liner is made from castable refractory which takes reclaimed waste refractory as the main material; and the lower submerged segment is made from castable refractory which is used for a desulfuration spray lance or is partly made from reclaimed heat-resistant steel fiber castable refractory which is used for a desulfuration spray lance. The low-cost molten iron pretreatment spray lance is simple in structure, convenient to make, low in manufacturing cost and long in service life and is suitable for blowing pretreatment of molten iron in a torpedo ladle and a molten iron ladle.
Description
Technical field
The utility model relates to the outer pre-processing device of the preceding molten iron stove of converter steelmaking, refers to a kind of low-cost hot metal pretreatment spray gun particularly.
Background technology
At present, the employed spray gun of pre-treatment of jetting outside the molten iron stove before the metallurgy industry converter steelmaking mainly is made up of metal rifle core and fire proofed wood spray gun lining.Wherein, metal rifle core is made up of the person in charge, stiffening web, riveting component and winding-up mouth; Fire proofed wood spray gun lining is to adopt the integrated poured moulding of mould material.Above-mentioned existing spray gun weak point is because of consistency between the outer fire proofed wood spray gun lining of the metal rifle core of spray gun and rifle core relatively poor, occurs that serious longitudinal crack burns, rifle serves as a contrast and peels off and problems such as the rifle head comes off, and causes desulphurization spray gun shorter actual service life.For this reason, domestic researchist improves existing spray gun, has produced " hot metal pretreatment spray gun ", " long-life single spout passivated magnesium desulphurization spray gun ", " the long-lived desulphurization spray gun of vaporization cell-type ", " molten iron spraying desulfurization spraying gun ", " self-cooling iron liquid pretreating spray gun " these novel spray guns.These spray guns have solved the thermal expansion coordination problem between different sorts spray gun metal rifle core and fire proofed wood spray gun lining preferably, avoided effectively that the spray gun big area is burnt, rifle lining big area peels off with the rifle head and comes off, and in production application, obtained and prolonged the spray gun effect in work-ing life.Above-mentioned spray gun solve existing spray gun rifle lining, rifle head easily the problem of coming off adopted two kinds of technical schemes: a kind of is to adopt more firm structure, yet so, metal rifle cored structure is very complicated, has increased the manufacture difficulty of spray gun, has influenced the make efficiency of spray gun; Another kind is to adopt a large amount of fine metallic substance and refractory materials, yet the cost of manufacture of this class spray gun is very high, has strengthened the molten iron pretreated spray gun consuming cost of jetting.
Summary of the invention
The purpose of this utility model will overcome the deficiencies in the prior art exactly, and a kind of low-cost hot metal pretreatment spray gun simple in structure, easy to make, with low cost is provided.
At above-mentioned purpose, the low-cost hot metal pretreatment spray gun that the utility model is designed, the fire proofed wood spray gun that comprises metal rifle core and be compounded on the metal rifle outer core serves as a contrast, described metal rifle core mainly is responsible for by the center and is strengthened sleeve combination and forms, described center is responsible for and is strengthened sleeve bottom and is provided with the winding-up mouth, described center is responsible for, strengthen between sleeve pipe and the fire proofed wood spray gun lining three and be provided with riveting component, described fire proofed wood spray gun lining during with winding-up the molten iron liquid level to be the interface by the bottom section of the slipping into rifle lining of unlike material and top revealed section rifle serve as a contrast is spliced, described top revealed section rifle lining is to be the rifle lining of the refractory castable making of main raw material with the waste refractory materials reworked material, the rifle lining that the section of slipping into rifle lining in described bottom is made for the refractory castable for desulfurizing spray gun of refractory castable for desulfurizing spray gun or part employing regeneration heat-resistant steel fiber.
Further, said enhancing sleeve pipe be the plain carbon stool material longitudinal welded pipe or spiral welded tube.
Advantage of the present utility model is: the designed low-cost hot metal pretreatment spray gun of the utility model is according to actual condition, fire proofed wood spray gun lining changed into by the section of slipping into rifle lining that is positioned at the below and the revealed section rifle lining that is positioned at the top be spliced, being exposed at the outer revealed section of molten iron, to adopt the waste refractory materials reworked material be that the refractory castable of main raw material(s) is made, because the temperature that revealed section bore is very low, such structural filaments does not influence spray gun work-ing life and heat-resisting effect, simultaneously greatly reduce raw-material cost, thereby significantly reduced the cost of manufacture of spray gun; And the utility model adopts seamed steel pipe to make spray gun metallic core means metal-cored and that comparatively simplify, and adopts the reworked material of waste and old refractory materials to make the rifle lining, can greatly reduce manufacture difficulty, shortens the fabrication cycle of rifle lining.
Description of drawings
Fig. 1 is the broken section structural representation of the utility model embodiment 1;
Fig. 2 is the broken section structural representation of the utility model embodiment 2;
Fig. 3 is the broken section structural representation of the utility model embodiment 3;
Fig. 4 is the broken section structural representation of the utility model embodiment 4.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in drawings, the low-cost hot metal pretreatment spray gun that the utility model is designed, comprise metal rifle core 1 and fire proofed wood spray gun lining 2, described metal rifle core (1) is mainly combined by center person in charge 1a and enhancing sleeve pipe 1b, and described center person in charge 1a and enhancing sleeve pipe 1b bottom are provided with the mouth 3 of jetting.Described center is responsible for 1a, strengthen sleeve pipe 1b and fire proofed wood spray gun serves as a contrast and is provided with riveting component 4 between 2 threes three is fixed.Said riveting component 4 is a kind of or its combination in bridging anchor nails, V-arrangement riveting component, two V-arrangement anchoring piece, the annulus riveting component.Described fire proofed wood spray gun lining 2 is spliced by the material section of slipping into rifle lining 2a and revealed section rifle lining 2b inequality; The molten iron liquid level is the interface during with winding-up, is positioned at the section of the slipping into rifle lining 2a of bottom, molten iron surface, is positioned at molten iron upper surface revealed section rifle lining 2b.It is to be the rifle lining of the refractory castable making of main raw material with the waste refractory materials reworked material that described top revealed section rifle serves as a contrast 2b, and the described bottom section of slipping into rifle lining 2a is that the rifle of refractory castable for desulfurizing spray gun or the refractory castable for desulfurizing spray gun making of partly adopting the regeneration heat-resistant steel fiber serves as a contrast.Because spray gun is exposed to the direct calcination that the part of molten iron outside can not be subjected to high temperature liquid iron, the temperature of being born will be well below the part of going deep in the molten iron, thereby fire proofed wood spray gun lining 2 is divided into the section of slipping into rifle lining 2a and revealed section rifle lining 2b two portions, and make revealed section rifle lining 2b as raw material with this material cheap, comparatively inferior of the reworked material of waste refractory materials, can bear molten iron top high temperature air and thermal radiation fully, can not have influence on fire-resistant effect, more can not influence the work-ing life of spray gun.Simultaneously, such structure can greatly reduce the cost of manufacture of spray gun, and then significantly reduces the cost of molten iron winding-up pretreatment process.For further reducing cost of manufacture, said enhancing sleeve pipe 1b is the longitudinal welded pipe or the spiral welded tube of plain carbon stool material.
Embodiment 1: the low-cost hot metal pretreatment spray gun of the two spout types of inverted T-shaped
As shown in Figure 1, adopt No. 15 carbon steel seamless tubes to make and be responsible for 1a, adopt the plain carbon stool wire rod to make bridging anchor nails 4, adopt No. 45 carbon steel longitudinal welded pipe to make reinforced pipe 1b, thickness of pipe 5mm, diameter 160mm, adopt No. 45 carbon steel weldless steel tubes to make two winding-up mouths 3, spout internal diameter 12mm.Adopt the refractory castable for desulfurizing spray gun cast section of slipping into rifle lining 2a, wherein, strengthen steel fiber and constitute by half regeneration heat-resistant steel fiber and half commercially available heat-resistant steel fiber.Adopting the waste refractory materials reworked material is the mould material cast revealed section rifle lining 2b of main raw material(s).Make the low-cost hot metal pretreatment spray gun of the two spouts of an inverted T-shaped, spray gun rifle body diameter is 280mm.
Embodiment 2: the low-cost hot metal pretreatment spray gun of type is directly blown in the bottom
As shown in Figure 2, adopt No. 45 carbon steel seamless tubes to make and be responsible for 1a, adopt the plain carbon stool wire rod to make anchoring piece 4, adopt No. 15 carbon steel longitudinal welded pipe to make reinforced pipe 1b, thickness of pipe 6mm, diameter 130mm, adopt winding-up mouth 2 of No. 45 carbon steel spiral welding steel pipe manufacturings, spout internal diameter 15mm.Adopt the refractory castable for desulfurizing spray gun cast section of slipping into rifle lining 2a, wherein, strengthen steel fiber and constitute by half regeneration heat-resistant steel fiber and half commercially available heat-resistant steel fiber.Adopting the waste refractory materials reworked material is the mould material cast revealed section rifle lining 2b of main raw material(s).Make a bottom and directly blow the low-cost hot metal pretreatment spray gun of type, spray gun rifle body diameter is 250mm.
Embodiment 3: pure spray particle magnesium, the low-cost hot metal pretreatment spray gun of no vaporizer type
As shown in Figure 3, adopt No. 45 carbon steel seamless tubes to make and be responsible for 1a, employing plain carbon stool wire rod is made anchoring piece 4, adopts No. 15 carbon steel longitudinal welded pipe to make reinforced pipe 1b, thickness of pipe 7mm, diameter 210mm, winding-up mouthful 3 employing graphite spouts.Adopt the refractory castable for desulfurizing spray gun cast section of slipping into rifle lining 2a, wherein, strengthen steel fiber and constitute by half regeneration heat-resistant steel fiber and half commercially available heat-resistant steel fiber.Adopting the waste refractory materials reworked material is the mould material cast revealed section rifle lining 2b of main raw material(s).Make a pure spray particle magnesium, the low-cost hot metal pretreatment spray gun of no vaporizer type, spray gun rifle body diameter is 340mm.
Embodiment 4: pure spray particle magnesium, the low-cost hot metal pretreatment spray gun of band vaporizer type
As shown in Figure 4, discarded spray gun is carried out rifle core repairing and reusing, the concrete reparation utilizes method to be: adopt pneumatic pick to remove and reclaim waste and old spray gun rifle lining, cleaning rifle wicking surface residue and remaining anchoring piece, waste and old rifle core in special use is repaired repair by welding and the straightening of carrying out the damaged position of rifle core on the operator's console, make on the platform at the rifle core and make metal rifle core 1 according to conventional rifle core production process, winding-up mouth 3 is the metal vaporizer.Adopt the refractory castable for desulfurizing spray gun cast section of slipping into rifle lining 2a, wherein, strengthen steel fiber and constitute by half regeneration heat-resistant steel fiber and half commercially available heat-resistant steel fiber.Adopting the waste refractory materials reworked material is the mould material cast revealed section rifle lining 2b of main raw material(s).Make a pure spray particle magnesium, the low-cost hot metal pretreatment spray gun of band vaporizer type.
Claims (3)
1. low-cost hot metal pretreatment spray gun, the fire proofed wood spray gun that comprises metal rifle core (1) and be compounded on metal rifle core (1) outer wall serves as a contrast (2), described metal rifle core (1) mainly is responsible for (1a) and is strengthened sleeve pipe (1b) by the center and combines, described center is responsible for (1a) and is strengthened sleeve pipe (1b) bottom and is provided with winding-up mouthful (3), (1a) is responsible at described center, strengthen between sleeve pipe (1b) and fire proofed wood spray gun lining (2) three and be provided with riveting component (4), it is characterized in that: described fire proofed wood spray gun lining (2) during with winding-up the molten iron liquid level to be the interface serve as a contrast (2b) by the bottom section of the slipping into rifle lining (2a) of unlike material and top revealed section rifle is spliced, described top revealed section rifle lining (2b) is to be the rifle lining of the refractory castable making of main raw material with the waste refractory materials reworked material, and the described bottom section of slipping into rifle lining (2a) is the rifle lining that refractory castable for desulfurizing spray gun or part adopt the refractory castable for desulfurizing spray gun of the heat-resistant steel fiber of regenerating to make.
2. low-cost hot metal pretreatment spray gun according to claim 1 is characterized in that: said enhancing sleeve pipe (1b) is the longitudinal welded pipe or the spiral welded tube of plain carbon stool material.
3. low-cost hot metal pretreatment spray gun according to claim 1 and 2 is characterized in that: said riveting component (4) is a kind of or its combination in bridging anchor nails, V-arrangement riveting component, two V-arrangement anchoring piece, the annulus riveting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200861522U CN201437543U (en) | 2009-05-31 | 2009-05-31 | Low-cost molten iron pretreatment spray lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200861522U CN201437543U (en) | 2009-05-31 | 2009-05-31 | Low-cost molten iron pretreatment spray lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437543U true CN201437543U (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200861522U Expired - Fee Related CN201437543U (en) | 2009-05-31 | 2009-05-31 | Low-cost molten iron pretreatment spray lance |
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| CN (1) | CN201437543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894336A (en) * | 2015-05-22 | 2015-09-09 | 武汉钢铁(集团)公司 | Insertion type molten iron slagging-off air blowing spray gun |
-
2009
- 2009-05-31 CN CN2009200861522U patent/CN201437543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894336A (en) * | 2015-05-22 | 2015-09-09 | 武汉钢铁(集团)公司 | Insertion type molten iron slagging-off air blowing spray gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20150531 |
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| EXPY | Termination of patent right or utility model |