CN212560335U - Bottom blowing furnace oxygen lance capable of quickly replacing lance core of oxygen lance - Google Patents
Bottom blowing furnace oxygen lance capable of quickly replacing lance core of oxygen lance Download PDFInfo
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- CN212560335U CN212560335U CN202020778174.1U CN202020778174U CN212560335U CN 212560335 U CN212560335 U CN 212560335U CN 202020778174 U CN202020778174 U CN 202020778174U CN 212560335 U CN212560335 U CN 212560335U
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- oxygen lance
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- lance
- oxygen
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Abstract
The utility model discloses a bottom blowing furnace oxygen lance capable of quickly replacing a lance core of the oxygen lance, which comprises an oxygen lance core, an oxygen lance outer tube, an outer tube base and a lance core base, wherein the oxygen lance outer tube, the outer tube base and the lance core base are of hollow structures; background blowing stove oxygen rifle has simplified the connected mode of rifle core base and outer tube base through improving rifle core base, can realize dismantling fast, changing the oxygen rifle core, not only shortens maintenance time, has still improved the operating efficiency, and has reduced the equipment maintenance expense, has design scientific and reasonable, the practicality is strong, change convenient and fast's advantage.
Description
Technical Field
The utility model belongs to the technical field of the converter production, concretely relates to but bottom blowing stove oxygen rifle of quick replacement oxygen rifle core.
Background
Bottom blowing furnace production refers to that in the production process of a converter, an oxygen lance is used for conveying oxygen and air into the converter to react with high-temperature melt and materials in the converter, because the head of the oxygen lance is always contacted with the high-temperature melt, the head of the oxygen lance is easy to form blockage and burning loss, therefore, the oxygen lance needs to be replaced and dredged regularly, the flange is added on the outer pipe of the prior oxygen lance, the flange of the outer pipe is connected with the base of the oxygen lance, the screw thread connection is adopted for connecting the lance core and the base, the flange connection is used for connecting the outer pipe and the base, 2-3 persons are needed for replacing the oxygen lance each time, furthermore, two input metal hoses of oxygen and air are required to be disassembled, bolts at the joint of the outer pipe and the base flange are screwed off, the whole base is screwed off by rotation, the gun core is pulled out by using a screw thread wheel puller, then sequentially installing a spare gun core and an oxygen lance base, and installing air and an oxygen lance metal hose, wherein the process is about 40-50 minutes at the fastest speed; and the whole oxygen lance base needs to be continuously rotated to be disassembled every time when the oxygen lance is disassembled, the screw thread of the outer tube is easy to damage and the deformation of the lance core is caused in the disassembling process, if the outer tube is seriously damaged due to burning loss in production or other reasons, the outer tube is required to be replaced again, the overhauling time is prolonged when the outer tube is not easily disassembled, the labor intensity of workers is increased, the production is delayed, great loss is caused to a company, and the production cost of the oxygen lance and the outer tube is increased. And the expected effect cannot be achieved through the improvement of the screw thread for many times.
Disclosure of Invention
The defect that exists to the above-mentioned prior art, the utility model aims to provide a but bottom blowing stove oxygen rifle of quick replacement oxygen rifle core, through improving rifle core base, the connected mode of rifle core base and outer tube base has been simplified, realized when changing every rifle core, can be operated by 1 people, the oxygen metal collapsible tube only need help to be held up to the assistant personnel can, can realize dismantling fast, change oxygen rifle core, not only shorten the repair time, still improve the operating efficiency, and reduced the overhaul of the equipments expense, design scientific and reasonable has, therefore, the clothes hanger is strong in practicability, change convenient and fast's advantage.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a but bottom blowing stove oxygen rifle of quick replacement oxygen rifle core, includes oxygen rifle core, oxygen rifle outer tube, outer tube base and rifle core base are hollow structure, the left end of oxygen rifle outer tube is connected with the right-hand member of outer tube base, and the left end of outer tube base is connected with the right-hand member of rifle core base, connects the back, at the inside cavity that is used for installing the oxygen rifle core that forms of bottom blowing stove oxygen rifle, and the oxygen rifle core is installed in the cavity.
Preferably, the oxygen lance core is of a hollow structure, a first clamping section and a connecting thread are arranged on the oxygen lance core, the first clamping section is arranged at the right end of the oxygen lance core, a clamping protrusion is arranged at the first clamping section, and the connecting thread is arranged at the left end of the oxygen lance core.
Preferably, the oxygen lance outer pipe is a hollow sleeve, a second clamping section and a first flange are arranged on the oxygen lance outer pipe, the second clamping section is arranged in an inner cavity at the right end of the oxygen lance outer pipe, a clamping groove is arranged on the second clamping section and is matched and clamped with the first clamping section, and the first flange is arranged at the left end of the oxygen lance outer pipe.
Preferably, the outer tube base be the cavity bell and spigot joint pipe, be provided with second ring flange, third ring flange and air conduit on the outer tube base, the second ring flange sets up the right-hand member at the outer tube base, uses with the cooperation of first ring flange, the third ring flange sets up the left end at the outer tube base, air conduit sets up on the body of outer tube base, and communicates with the inside cavity of outer tube base, and air conduit's end is provided with the fourth ring flange.
Preferably, the gun core base on be provided with gun core screw thread, fifth ring flange and sixth ring flange, the gun core screw thread sets up in the inner chamber of gun core base, with connecting thread cooperation connection, the fifth ring flange sets up the right-hand member at the gun core base, uses with the cooperation of third ring flange, the sixth ring flange sets up the left end at the gun core base.
Preferably, the first flange plate, the second flange plate, the third flange plate, the fourth flange plate, the fifth flange plate and the sixth flange plate are all provided with bolt holes; and the first flange plate and the second flange plate, and the third flange plate and the fifth flange plate are fixedly connected through bidirectional screws.
Preferably, gaskets are respectively arranged between the first flange plate and the second flange plate and between the third flange plate and the fifth flange plate.
Preferably, the gasket is a polyethylene gasket.
Preferably, the oxygen lance core and the oxygen lance outer pipe are both made of 06CrNi20 stainless steel, the outer diameter of the oxygen lance core is 63-67mm, and the outer diameter of the oxygen lance outer pipe is 73-77 mm.
The utility model has the advantages that: the utility model discloses a but bottom blowing stove oxygen rifle of quick replacement oxygen rifle core, compare with prior art, the utility model discloses an improvement part lies in:
the utility model discloses a core base of end blown oxygen stove oxygen rifle redesign, the end blown oxygen stove oxygen rifle that can realize dismantling fast, change has been designed, the connected mode of core base and outer tube base has been simplified, realized when changing every core, can be operated by 1 people, the oxygen metal collapsible tube is only helped to auxiliary personnel, core change time shortens to 15 minutes left and right by original 40-50 minutes, utilize the end blown oxygen stove oxygen rifle to realize dismantling fast, the purpose of changing the core, not only shorten the repair time, the operating efficiency has still been improved, and the equipment maintenance expense has been reduced, design scientific and reasonable, therefore, the clothes hanger is strong in practicability, change convenient and fast's advantage.
Drawings
FIG. 1 is a schematic view of the components of an oxygen lance of a bottom blowing furnace provided by the oxygen lance of the present invention.
FIG. 2 is a schematic structural view of the oxygen lance core of the present invention.
FIG. 3 is a schematic structural view of an oxygen lance outer tube of the present invention.
Fig. 4 is a schematic structural view of the outer tube base of the present invention.
Fig. 5 is a schematic structural view of the core base of the present invention.
Wherein: 1. the oxygen lance comprises an oxygen lance core, 11 parts of a first clamping section, 12 parts of connecting threads, 2 parts of an oxygen lance outer pipe, 21 parts of a second clamping section, 22 parts of a first flange plate, 3 parts of an outer pipe base, 31 parts of a second flange plate, 32 parts of a third flange plate, 33 parts of an air pipeline, 34 parts of a fourth flange plate, 4 parts of a lance core base, 41 parts of a lance core screw thread, 42 parts of a fifth flange plate, 43 parts of a sixth flange plate, 5 parts of bolt holes and 6 parts of a gasket.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Referring to the attached drawings 1-5, the bottom blowing oxygen lance capable of rapidly replacing the oxygen lance core comprises an oxygen lance core 1, an oxygen lance outer tube 2, an outer tube base 3 and a lance core base 4, wherein the oxygen lance outer tube 2, the outer tube base 3 and the lance core base 4 are of hollow structures, the left end of the oxygen lance outer tube 2 is connected with the right end of the outer tube base 3, the left end of the outer tube base 3 is connected with the right end of the lance core base 4, after connection, a cavity for installing the oxygen lance core 1 is formed inside the bottom blowing oxygen lance, and the oxygen lance core 1 is installed in the cavity.
The oxygen lance core 1 is of a hollow structure, a first clamping section 11 and a connecting thread 12 are arranged on the oxygen lance core, the first clamping section 11 is arranged at the right end of the oxygen lance core 1, a clamping bulge is arranged on the first clamping section 11, and the connecting thread 12 is arranged at the left end of the oxygen lance core 1; the oxygen lance outer pipe 2 is a hollow sleeve, a second clamping section 21 and a first flange plate 22 are arranged on the oxygen lance outer pipe, the second clamping section 21 is arranged in the inner cavity of the right end of the oxygen lance outer pipe 2, a clamping groove is arranged on the second clamping section 21 and is matched and clamped with the first clamping section 11, and the first flange plate 22 is arranged at the left end of the oxygen lance outer pipe 2; the outer pipe base 3 is a hollow sleeve pipe, a second flange plate 31, a third flange plate 32 and an air pipeline 33 are arranged on the outer pipe base, the second flange plate 31 is arranged at the right end of the outer pipe base 3 and is matched with the first flange plate 22 for use, the third flange plate 32 is arranged at the left end of the outer pipe base 3, the air pipeline 33 is arranged on the body of the outer pipe base and is communicated with the inner cavity of the outer pipe base for introducing air when the bottom furnace oxygen lance is used, the tail end of the air pipeline 33 is provided with a fourth flange plate 34, and the fourth flange plate 34 is in butt joint with an air metal hose flange; the gun core base 4 is provided with a gun core screw thread 41, a fifth flange 42 and a sixth flange 43, the gun core screw thread 41 is arranged in the inner cavity of the gun core base 4 and is matched and connected with the connecting thread 12, the fifth flange 42 is arranged at the right end of the gun core base 4 and is matched and used with the third flange 32, and the sixth flange 43 is arranged at the left end of the gun core base 4.
Preferably, the first flange 22, the second flange 31, the third flange 32, the fourth flange 34, the fifth flange 42 and the sixth flange 43 are all provided with bolt holes 5, and the bolt holes 5 are respectively penetrated between the first flange 22 and the second flange 31 and between the third flange 32 and the fifth flange 42 through two-way screws to fixedly connect the first flange 22 and the second flange 31 and between the third flange 32 and the fifth flange 42, wherein in order to prevent air leakage in the use process, gaskets 6 are respectively filled between the first flange 22 and the second flange 31 and between the third flange 32 and the fifth flange 42.
Preferably, the gasket 6 is a polyethylene gasket;
preferably, the oxygen lance outer pipe 2 is made of 06CrNi20 stainless steel, the pipe diameter of the stainless steel is 73-77mm, preferably 75mm, the oxygen lance core 1 is made of 06CrNi20 stainless steel, the pipe diameter of the stainless steel is 63-67mm, preferably 65mm, a gap between the oxygen lance outer pipe 2 and the oxygen lance core 1 is used for allowing air to pass through, and forms an oxygen-enriched air injection state with oxygen input by the oxygen lance core 1, and the air passing through the gap can play a role in cooling, so that the lance head in a reaction region is well protected from burning.
The utility model discloses a theory of operation and working process do:
the bottom blowing furnace oxygen lance consists of an oxygen lance core 1, a flange type outer tube 2, a lance core base 3 and an outer tube base 4, wherein the oxygen lance core 1 can be periodically replaced and dredged due to the prevention of blockage and burning loss of the oxygen lance core in production, the oxygen lance core 1 needs to be prepared in advance before replacement, and meanwhile, a steel chisel with the diameter of 67 and other common maintenance tools are prepared;
when the furnace body is rotated out for maintenance, the gas source is turned off, the oxygen metal hose is only needed to be taken down, the bidirectional screw at the butt joint of the fifth flange 42 and the third flange 32 is disassembled, the gun core base is taken down, and the polyethylene gasket 6 is taken out, the oxygen lance core 1 is pulled out by using a wheel puller, the slag on the inner side wall of the oxygen lance outer tube 2 is cleaned by using phi 73 steel chisel, and then inserting the prepared oxygen lance core 1 into the oxygen lance outer pipe 2, keeping the lance head flush with the outer pipe head, enabling the clamping protrusion on the first clamping section 11 to be tightly clamped with the clamping groove arranged on the second clamping section 21, finally padding a gasket 6 between the fifth flange 42 and the third flange 32 again, installing a core base, penetrating a bolt hole 5 with a bidirectional screw rod, and screwing the bolt of the fifth flange 42 and the third flange 32, thus finishing the lance replacement work.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a but bottom blowing stove oxygen rifle of quick replacement oxygen rifle core which characterized in that: the oxygen lance core (1), the oxygen lance outer tube (2), the outer tube base (3) and the lance core base (4) are of hollow structures, the left end of the oxygen lance outer tube (2) is connected with the right end of the outer tube base (3), the left end of the outer tube base (3) is connected with the right end of the lance core base (4), after connection, a cavity for installing the oxygen lance core (1) is formed inside the bottom blowing furnace oxygen lance, and the oxygen lance core (1) is installed in the cavity.
2. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 1, wherein: the oxygen lance core (1) is of a hollow structure, a first clamping section (11) and connecting threads (12) are arranged on the oxygen lance core, the first clamping section (11) is arranged at the right end of the oxygen lance core (1), clamping protrusions are arranged on the first clamping section (11), and the connecting threads (12) are arranged at the left end of the oxygen lance core (1).
3. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 2, wherein: the oxygen lance outer pipe (2) is a hollow sleeve, a second clamping section (21) and a first flange (22) are arranged on the oxygen lance outer pipe, the second clamping section (21) is arranged in the inner cavity of the right end of the oxygen lance outer pipe (2), a clamping groove is arranged on the second clamping section (21) and is in matched clamping connection with the first clamping section (11), and the first flange (22) is arranged at the left end of the oxygen lance outer pipe (2).
4. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 3, wherein: outer tube base (3) be the cavity socket joint pipe, be provided with second ring flange (31), third ring flange (32) and air conduit (33) on the outer tube base, second ring flange (31) set up the right-hand member in outer tube base (3), use with first ring flange (22) cooperation, third ring flange (32) set up the left end in outer tube base (3), air conduit (33) set up on the body of outer tube base, and communicate with the inside cavity of outer tube base, and the end of air conduit (33) is provided with fourth ring flange (34).
5. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 4, wherein: rifle core base (4) on be provided with rifle core screw thread (41), fifth ring flange (42) and sixth ring flange (43), rifle core screw thread (41) set up in the inner chamber of rifle core base (4), are connected with connecting thread (12) cooperation, fifth ring flange (42) set up the right-hand member in rifle core base (4), use with third ring flange (32) cooperation, sixth ring flange (43) set up the left end in rifle core base (4).
6. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 5, wherein: the first flange plate (22), the second flange plate (31), the third flange plate (32), the fourth flange plate (34), the fifth flange plate (42) and the sixth flange plate (43) are all provided with bolt holes (5); and the first flange plate (22) is fixedly connected with the second flange plate (31), and the third flange plate (32) is fixedly connected with the fifth flange plate (42) through bidirectional screws.
7. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 6, wherein: gaskets (6) are respectively arranged between the first flange plate (22) and the second flange plate (31) and between the third flange plate (32) and the fifth flange plate (42).
8. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in claim 7, wherein: the gasket (6) is a polyethylene gasket.
9. The bottom-blown oxygen lance capable of rapidly replacing the lance core of the oxygen lance as claimed in any one of claims 1 to 8, wherein: the oxygen lance core (1) and the oxygen lance outer pipe (2) are both made of 06CrNi20 stainless steel, the outer diameter of the oxygen lance core (1) is 63-67mm, and the outer diameter of the oxygen lance outer pipe (2) is 73-77 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020778174.1U CN212560335U (en) | 2020-05-12 | 2020-05-12 | Bottom blowing furnace oxygen lance capable of quickly replacing lance core of oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020778174.1U CN212560335U (en) | 2020-05-12 | 2020-05-12 | Bottom blowing furnace oxygen lance capable of quickly replacing lance core of oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212560335U true CN212560335U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020778174.1U Active CN212560335U (en) | 2020-05-12 | 2020-05-12 | Bottom blowing furnace oxygen lance capable of quickly replacing lance core of oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212560335U (en) |
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2020
- 2020-05-12 CN CN202020778174.1U patent/CN212560335U/en active Active
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