CN210367762U - Converter final slag spraying tempering system - Google Patents
Converter final slag spraying tempering system Download PDFInfo
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- CN210367762U CN210367762U CN201921315700.4U CN201921315700U CN210367762U CN 210367762 U CN210367762 U CN 210367762U CN 201921315700 U CN201921315700 U CN 201921315700U CN 210367762 U CN210367762 U CN 210367762U
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Abstract
The utility model belongs to the technical field of metallurgical steelmaking, concretely relates to quenching and tempering system dusts of converter final slag is to current adoption manual work joining, can not ensure the addition, influences the normal slag that splashes and protects stove effect and proposes, and it includes: the spray gun comprises two spray guns, the spray ends of each spray gun penetrate through a fire door behind the furnace and extend into a smoke isolating chamber, the spray of the two spray guns form a cross region, each spray gun is fixed on the outer wall of the fire door behind the furnace through a spray gun adjusting seat, the air inlet end of each spray gun is communicated with the air storage tank through a hose, the powder tank consists of two tank bodies filled with different powders, and each powder tank is communicated with an air injection pipeline of one spray gun. The utility model discloses a mode of mechanical jetting has reduced operation workman's working strength, also ensures the add volume of dusting simultaneously to normal sediment that spatters stove effect of protecting has been played.
Description
The technical field is as follows:
the utility model belongs to the technical field of metallurgical steelmaking, concretely relates to quenching and tempering system is dusted to converter final sediment.
Background art:
in the converter steelmaking process, the components, viscosity and slag amount of the slag are adapted to the type of the smelted steel, so that the requirements of early dephosphorization and desulfurization are met, the corrosion to a furnace body is minimum, and the slag splashing furnace protection effect is ensured. In the smelting process of the converter, in order to avoid the corrosion of acid slag generated in the oxidation period of silicomanganese to a furnace body, the content of magnesium oxide in early-stage slag and the alkalinity of initial slag must be improved, slag materials with high content of magnesium oxide, such as magnesium balls, light burned dolomite, raw dolomite and the like, are added into the converter in the blowing stage, the content of magnesium oxide in slag can be greatly improved after tapping, the converter slag amount is reduced, the iron loss and the metal yield are reduced, and the realization cost is very high. In the initial stage of the technology, manual addition is adopted, but the environment is severe, so that the addition amount cannot be ensured, and the normal slag splashing furnace protection effect is influenced.
The utility model has the following contents:
the utility model overcomes above-mentioned defect provides a quenching and tempering system dusts at converter end sediment, and the device adopts the machinery mode of dusting, makes spun powder fully contact with the molten steel to improve the effect that the sediment that splashes protects the stove.
The utility model discloses a technical scheme lie in: converter final slag quenching and tempering system that dusts includes: the spray gun comprises two spray guns, the spray ends of each spray gun penetrate through a fire door behind the furnace and extend into a smoke isolating chamber, the spray of the two spray guns form a cross region, each spray gun is fixed on the outer wall of the fire door behind the furnace through a spray gun adjusting seat, the air inlet end of each spray gun is communicated with the air storage tank through a hose, the powder tank consists of two tank bodies filled with different powders, and each powder tank is communicated with an air injection pipeline of one spray gun.
Preferably, each spray gun comprises at least two nozzles distributed in a circular arc shape, and each nozzle is communicated with the air injection pipeline of the spray gun.
Preferably, the air storage tank is further connected with a compressed air dehydration device, an outlet end of the air storage tank is communicated with an inlet end of the compressed air dehydration device, and an outlet end of the compressed air dehydration device is communicated with the spray gun through a hose.
Preferably, the spray gun adjusting seat comprises a fixed seat, two support arms, an adjusting seat and an adjusting knob, the two support arms are arranged on the fixed seat at intervals, the adjusting seat is rotatably arranged on the fixed seat through the support arms, an angle adjusting hole is formed in the adjusting seat, the adjusting knob penetrates through the support arms and is in threaded connection with the angle adjusting hole, the angle adjusting hole consists of more than two through holes, and the angle adjusting hole is integrally umbrella-shaped; first through holes are formed in the fixing seat, second through holes are formed in the top of the adjusting seat, the first through holes and the second through holes are coaxially arranged, and the inner diameter of each first through hole is larger than that of each second through hole.
The utility model has the advantages that:
1. the spraying end of the spray gun is extended into the smoke-isolating chamber to spray powder and temper the discharged molten steel, and the final slag components are adjusted, so that the slag splashing effect is ensured, the consumption of magnesium-containing materials of a furnace protection is reduced, the slag amount is reduced, compared with the existing 'less slag smelting' technology, the converter slag amount under the same condition can be further reduced, and the metal yield is improved.
2. Through designing two spray guns to design into convex distribution with the nozzle of spray gun, this structure can make spray gun spun powder form alternately radial, compares single-end, single spray gun, the utility model discloses a spray gun can realize high-efficient, broad width, spray the even effect of distribution.
3. The utility model discloses a mode of mechanical jetting has reduced operation workman's working strength, also ensures the add volume of dusting simultaneously to normal sediment that spatters stove effect of protecting has been played.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a spray gun adjusting seat;
FIG. 3 is a schematic structural view of the adjustment seat in FIG. 2;
FIG. 4 is a state diagram of the spray gun in operation;
wherein: 1 gas storage tank, 11 compressed air dehydration device, 2 powder tank, 3 spray gun, 31 spray nozzle, 4 spray gun adjusting seat, 41 fixing seat, 411 first through hole, 42 support arm, 43 adjusting seat, 431 second through hole, 44 adjusting knob, 45 angle adjusting hole, 46 puller bolt, 5 furnace back fire door, 6 smoke isolation chamber, 7 hose, 8 steel ladle and 9 converter.
The specific implementation mode is as follows:
as shown in fig. 1, the utility model relates to a quenching and tempering system for converter final slag spraying, which comprises: gas holder 1, powder jar 2, spray gun 3 is two, and the injection end of every spray gun 3 all passes behind the stove fire door 5 and stretches into in separating smoke chamber 6, it is the work area at converter 9 place to separate smoke chamber 6, and it is by the area that the fire door was closed jointly in the stokehold, the stove is back fire door 5 and enclosure. The spraying of two spray guns 3 forms the intersection region, and in order to increase the width of the spraying region, improve the homogeneity of spraying distribution simultaneously, every spray gun 3 all includes at least two nozzle 31 that are the arc distribution, and every nozzle 31 all communicates with the gas injection pipeline of spray gun 3. Since the spray gun 3 is required to spray powder to the mouth of the converter 9 for tempering when tapping, the spray gun 3 is designed such that the front end is bent and the rear end is vertical, and the front end faces the mouth of the converter 9.
Every spray gun 3 is fixed on the outer wall of the furnace back fire door 5 through the spray gun adjusting seat 4, the air inlet end of every spray gun 3 is communicated with the air storage tank 1 through the hose 7, the powder tank 2 is composed of two tank bodies filled with different powders, one is a magnesium powder tank, the other is a carbon powder tank, and every powder tank 2 is respectively communicated with the air injection pipeline of a spray gun 3.
As shown in fig. 2 and 3, the lance adjusting seat 4 is fixed on the outer wall of the furnace rear fire door 5, the lance adjusting seat 4 includes a fixed seat 41, two support arms 42, an adjusting seat 43 and an adjusting knob 44, the two support arms 42 are arranged on the fixed seat 41 at intervals, and the support arms 42 and the fixed seat 41 are integrated. The adjusting seat 43 is connected with the supporting arm 42 through a puller bolt 46, the supporting arm 42 is provided with a through hole, the adjusting seat 43 is provided with a threaded through hole, the inner diameter of the through hole formed in the supporting arm 42 is larger than the outer diameter of the puller bolt 46, and after the adjusting seat 43 is connected with the supporting arm 42 through the puller bolt 46, the adjusting seat 43 can be connected with the supporting arm 42 in a relative rotating mode. An angle adjusting hole 45 is formed in the adjusting seat 43, the adjusting knob 44 penetrates through the supporting arm 42 and is in threaded connection with the angle adjusting hole 45, the angle adjusting hole 45 is formed by more than two through holes which are evenly distributed, the angle adjusting hole 45 is integrally umbrella-shaped, and the adjusting seat 43 and the supporting arm 42 can be fixed at different angles. The fixed seats 41 are all provided with first through holes 411, and the first through holes 411 are larger than the outer diameter of the spray gun 3; a second through hole 431 is formed in the top of the adjusting seat 43, the second through hole 431 is slightly larger than the outer diameter of the spray gun 3, the first through hole 411 and the second through hole 431 are coaxially arranged, and the inner diameter of the first through hole 411 is larger than that of the second through hole 431.
Can store nitrogen gas in the gas holder 1, in order to reduce manufacturing cost, also can save the air, because moisture is easy in the air, consequently still be connected with compressed air dewatering device 11, many air carries out dehydration, compressed air dewatering device 11 is current product. The outlet end of the air storage tank 1 is communicated with the inlet end of a compressed air dehydration device 11, and the outlet end of the compressed air dehydration device 11 is communicated with the spray gun 3 through a hose 7.
The working process is as follows:
before installation, a circular hole is formed in the rear fire door 5 of the furnace, and during installation, the fixed seat 41 is fixed on the outer wall of the rear fire door 5 of the furnace through the spray gun adjusting seat 4 by screws, so that the circular hole in the rear fire door 5 of the furnace and the first through hole 411 in the spray gun adjusting seat 4 are concentrically arranged; secondly, the end part of the spray gun 3 extends out of the smoke isolating chamber 6 and sequentially passes through the circular hole, the first through hole 411 and the second through hole 431; then, the angle between the adjusting seat 43 and the fixed seat 41 is adjusted, the adjusting knob 44 is fixed to the corresponding through hole in the angle adjusting hole 45 after the angle is determined, the puller bolt 46 is screwed, the puller bolt 46 is fixed to the outer wall of the spray gun 3, the spray gun 3 is fixed, and finally each spray gun 3 is communicated with the air storage tank 1, the compressed air dehydration device 11 and the powder tank 2 through the hose 7.
As shown in fig. 4, when the converter 9 is used to pour molten steel into the ladle 8, the gas holder 1 is activated to continuously spray the powder in the powder holder 2 toward the mouth of the converter 9 using the gas in the gas holder 1 as a carrier.
The above description is only the preferred embodiments of the present invention, and these embodiments are all based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. Converter final slag quenching and tempering device that dusts, characterized by, include: gas holder (1), powder jar (2), spray gun (3) are two, and the injection end of every spray gun (3) all passes in stove back fire door (5) stretch into separate smoke chamber (6), and the injection formation cross region of two spray guns (3), and every spray gun (3) are fixed on the outer wall of stove back fire door (5) through spray gun regulation seat (4), and the inlet end of every spray gun (3) passes through hose (7) and gas holder (1) intercommunication, powder jar (2) comprise two jar bodies that are equipped with different powder, and every powder jar (2) communicate with the jet-propelled pipeline of a spray gun (3) respectively.
2. The converter final slag dusting tempering device of claim 1, characterized in that: each spray gun (3) comprises at least two nozzles (31) distributed in a circular arc shape, and each nozzle (31) is communicated with an air injection pipeline of the spray gun (3).
3. The converter final slag dusting tempering device of claim 1, characterized in that: the compressed air dehydration device is characterized in that the air storage tank (1) is further connected with a compressed air dehydration device (11), the outlet end of the air storage tank (1) is communicated with the inlet end of the compressed air dehydration device (11), and the outlet end of the compressed air dehydration device (11) is communicated with the spray gun (3) through a hose (7).
4. The converter final slag dusting tempering device as defined in any one of claims 1 to 3, wherein: the spray gun adjusting seat (4) comprises a fixed seat (41), two support arms (42), an adjusting seat (43) and an adjusting knob (44), the two support arms (42) are arranged on the fixed seat (41) at intervals, the adjusting seat (43) is rotatably installed on the fixed seat (41) through the support arms (42), an angle adjusting hole (45) is formed in the adjusting seat (43), the adjusting knob (44) penetrates through the support arms (42) to be in threaded connection with the angle adjusting hole (45), the angle adjusting hole (45) is formed by more than two through holes, and the angle adjusting hole (45) is integrally umbrella-shaped; all seted up first through-hole (411) on fixing base (41), seted up second through-hole (431) at regulation seat (43) top, first through-hole (411) and second through-hole (431) coaxial setting, and the internal diameter of first through-hole (411) is greater than the internal diameter of second through-hole (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315700.4U CN210367762U (en) | 2019-08-14 | 2019-08-14 | Converter final slag spraying tempering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315700.4U CN210367762U (en) | 2019-08-14 | 2019-08-14 | Converter final slag spraying tempering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210367762U true CN210367762U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921315700.4U Active CN210367762U (en) | 2019-08-14 | 2019-08-14 | Converter final slag spraying tempering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210367762U (en) |
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2019
- 2019-08-14 CN CN201921315700.4U patent/CN210367762U/en active Active
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