CN112226577A - A guide structure and insert barrel subassembly for barrel is inserted in installation - Google Patents
A guide structure and insert barrel subassembly for barrel is inserted in installation Download PDFInfo
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- CN112226577A CN112226577A CN202011208041.1A CN202011208041A CN112226577A CN 112226577 A CN112226577 A CN 112226577A CN 202011208041 A CN202011208041 A CN 202011208041A CN 112226577 A CN112226577 A CN 112226577A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention provides a guide structure for installing an inserted gun tube and an inserted gun tube assembly, wherein the guide structure comprises a positioning cylinder for inserting the inserted gun tube, the positioning cylinder is fixed on the outer wall of a converter flue, the central axis of the positioning cylinder is superposed with the centering central line of the inserted gun tube on the converter flue, the positioning cylinder is communicated with the inside of the converter flue, and a positioning piece for coaxially positioning the positioning cylinder and the inserted gun tube is arranged on the positioning cylinder. The invention solves the problem that the installation of the oxygen gun mouth and the sublance mouth can be completed by continuously adjusting the installation position in the prior art, so that the replacement of the oxygen gun mouth and the sublance mouth is more convenient and quicker, and the guide structure is not required to be detached from the converter flue when the oxygen gun mouth and the sublance mouth are replaced, thereby avoiding the damage of the converter flue and protecting the flue.
Description
Technical Field
The invention relates to the technical field of smelting equipment, in particular to a guide structure for installing a gun inserting tube and a gun inserting tube assembly.
Background
An oxygen top-blown converter is one of main devices for recovering waste heat in a steelmaking workshop, an oxygen lance port is installed on a flue at a converter mouth of the converter, an auxiliary lance port is also arranged on a flue of some converters, the oxygen lance port is an oxygen lance insertion barrel, the auxiliary lance port is an auxiliary lance insertion barrel, the converter needs to repeatedly lift and lower the oxygen lance and the auxiliary lance in the smelting process, the oxygen lance is inserted into the oxygen lance port to spray oxygen into the converter, and the auxiliary lance is inserted into the auxiliary lance port to measure the temperature and the smoke components in the flue. Under the jet action of the oxygen lance, elements such as carbon, silicon, manganese and the like in molten iron for smelting react with oxygen to generate high temperature and release a large amount of hot gas and smoke dust, the oxygen lance and the sublance repeatedly lift and pass through the oxygen lance opening and the sublance opening, and a large amount of carried steel slag is accumulated on the oxygen lance opening and the sublance opening to cause the oxygen lance opening and the sublance opening to be extremely easy to damage. The flue runs for about half a year to about one year, and the oxygen lance mouth and the auxiliary lance mouth of the converter flue need to be periodically disassembled and replaced.
Specifically, as shown in fig. 1 and fig. 2, an oxygen lance mouth 1' and an auxiliary lance mouth 2' are detachably and fixedly connected with a converter flue 100 through a protection plate 200, the oxygen lance mouth 1' and the auxiliary lance mouth 2' are arranged at an inclined section of the converter flue 100, the inclined section of the converter flue 100 is a cylinder, the center of the oxygen port 1' is aligned with the center line of the converter, the auxiliary lance mouth 2' is generally arranged above the oxygen lance mouth 1' and is positioned at one side of the center of the converter flue 100, during the process of dismounting and replacing the oxygen lance mouth 1' and the auxiliary lance mouth 2', the centering center lines of the oxygen lance mouth 1' and the auxiliary lance mouth 2' are on a side inclined plane of the converter flue 100, a positioning mark is lacked, the mounting positions of a new oxygen lance mouth and the auxiliary lance mouth need to be continuously adjusted to complete centering, the replacement of the oxygen lance mouth and the auxiliary lance mouth is time-consuming and labor-consuming, frequent dismounting is easy to cause the damage of the flue surface, and the, and the oxygen lance mouth and the sublance mouth are positioned near the furnace mouth, so the space is small, the temperature is high, the working environment is severe, and long-time replacement operation can also cause physical damage to operators.
Disclosure of Invention
The invention aims to provide a guide structure for mounting a gun inserting tube and a gun inserting tube assembly so as to solve the problem that an oxygen gun port and an auxiliary gun port are inconvenient to replace.
In order to achieve the purpose, the invention provides a guide structure for installing an insertion gun tube, which comprises a positioning cylinder for inserting the insertion gun tube, wherein the positioning cylinder is fixed on the outer wall of a converter flue, the central axis of the positioning cylinder is superposed with the centering central line of the insertion gun tube on the converter flue, the positioning cylinder is communicated with the inside of the converter flue, and a positioning piece for coaxially positioning the positioning cylinder and the insertion gun tube is arranged on the positioning cylinder.
As above a guide structure for installing insert barrel, wherein, the setting element is the holding ring, the central axis of holding ring with the central axis coincidence of a location section of thick bamboo, be equipped with the go-between on inserting the barrel, the central axis of go-between with the central axis coincidence of inserting the barrel, the holding ring with the go-between will through coaxial cooperation a location section of thick bamboo with insert barrel coaxial positioning.
The guide structure for installing the barrel for inserting the gun is characterized in that the positioning ring is provided with at least three positioning holes, the at least three positioning holes are uniformly distributed in an annular manner around the central axis of the positioning ring, the connecting ring is provided with at least three connecting holes, the at least three connecting holes are uniformly distributed in an annular manner around the central axis of the connecting ring, the radial distance between each positioning hole and the central axis of the positioning ring is equal to the radial distance between each connecting hole and the central axis of the connecting ring, and the positioning holes and the connecting holes are aligned one by one to coaxially position the positioning ring and the connecting ring.
The guiding structure for installing the insertion barrel is characterized in that the positioning ring is provided with an annular groove, the central axis of the annular groove coincides with the central axis of the positioning ring, the connecting ring is provided with an annular boss which can be matched with the annular groove, the central axis of the annular boss coincides with the central axis of the connecting ring, and the positioning ring and the connecting ring are coaxially positioned by embedding the annular boss into the annular groove.
The guiding structure for installing the inserting barrel is characterized in that one end of the positioning cylinder is connected with the flue of the converter, the positioning ring is arranged at the other end of the positioning cylinder, the connecting ring is arranged on the outer wall of the inserting barrel, and the other end of the positioning cylinder is coaxially positioned and connected with the inserting barrel through the positioning ring and the connecting ring.
The guide structure for mounting the insertion barrel as described above, wherein the positioning ring and the connection ring are sealed by a labyrinth structure.
The guide structure for installing the barrel for inserting the gun is characterized in that one or more sealing grooves are formed in the positioning ring, one or more sealing teeth are arranged on the connecting ring, the sealing teeth are inserted into the sealing grooves and form a labyrinth sealing structure with the sealing grooves, and the bottom surfaces of the sealing grooves and the bottom surfaces of the sealing teeth are inclined surfaces.
The guide structure for installing the inserting barrel is characterized in that an annular baffle plate is arranged on the inner wall of the positioning barrel, the inner diameter of the annular baffle plate is smaller than the outer diameter of the inserting barrel, the inner diameter of the annular baffle plate is larger than or equal to the inner diameter of the inserting barrel, the inserting barrel abuts against the annular baffle plate in the state that the inserting barrel is inserted into the positioning barrel, and an annular gap between the inserting barrel and the inner side wall of the positioning barrel is separated from the inner cavity of the inserting barrel by the annular baffle plate.
The guide structure for installing the barrel for inserting the gun is characterized in that the side wall of the positioning cylinder is a wall pipe structure for water cooling or steam cooling, or the side wall of the positioning cylinder is a solid wall plate made of high-temperature resistant materials.
The invention also provides a barrel inserting assembly, which comprises a barrel inserting barrel and the guide structure, wherein the barrel inserting barrel is inserted into the positioning barrel, the positioning barrel and the barrel inserting barrel are coaxially positioned by the positioning piece, and the barrel inserting barrel is detachably connected with the positioning barrel.
The invention is used for installing the guide structure of the inserting gun tube and the inserting gun tube component and has the characteristics and advantages that:
1. the guide structure is adopted to install the insertion gun tube (namely the oxygen gun mouth or the auxiliary gun mouth), the insertion gun tube is not directly aligned with the alignment central line on the side convex inclined plane of the converter flue, but is aligned with the positioning cylinder to indirectly align the converter flue, and the alignment of the insertion gun tube and the positioning cylinder is provided with the positioning piece as the positioning mark, so that the alignment is more convenient, the problem that the alignment can be completed only by continuously adjusting the installation position when the oxygen gun mouth and the auxiliary gun mouth are installed in the prior art is solved, the oxygen gun mouth and the auxiliary gun mouth are more convenient and faster to replace, and the guide structure is not required to be detached from the converter flue when the oxygen gun mouth and the auxiliary gun mouth are replaced, so that the converter flue can be prevented from being damaged, and the flue is;
2. the positioning ring is used as the positioning piece, so that the alignment of the insertion gun tube and the positioning barrel is facilitated, and the connection and the sealing of the insertion gun tube and the positioning barrel are facilitated;
3. according to the invention, the labyrinth seal structure is arranged between the positioning ring and the connecting ring, so that the positioning cylinder and the insertion gun tube can be sealed, external air is prevented from being sucked into a converter flue with micro negative pressure, potential safety hazards are avoided, and compared with the prior art which adopts steam seal or nitrogen seal, the energy medium loss can be reduced;
4. according to the invention, the annular baffle is arranged on the inner wall of the positioning cylinder, so that an annular gap between the inserted gun tube and the inner side wall of the positioning cylinder is separated from an inner cavity of the inserted gun tube, smoke and ash are prevented from entering the annular gap between the inserted gun tube and the positioning cylinder, and the service life of the inserted gun tube is prolonged.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a prior art schematic illustration of an oxygen lance port and a sublance port mounted on a converter flue;
FIG. 2 is a side view taken from the direction A of FIG. 1;
FIG. 3 is a schematic view of a guide structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of the guide structure of FIG. 3 in cooperation with a barrel;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a schematic view of a guide structure in cooperation with a barrel of the insertion gun according to another embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6, illustrating one embodiment of a coupling ring;
FIG. 8 is a schematic view of another embodiment of a connection ring;
FIG. 9 is a schematic view of one embodiment of a retaining ring;
FIG. 10 is a schematic view of another embodiment of a retaining ring;
FIG. 11 is a schematic view of an embodiment of a positioning cartridge;
FIG. 12 is a schematic view of an embodiment of a barrel for insertion;
FIG. 13 is a schematic view of another embodiment of a barrel for insertion of a gun;
FIG. 14 is a schematic view of an embodiment of a labyrinth seal;
FIG. 15 is a schematic view of another embodiment of a labyrinth seal;
FIG. 16 is a schematic view of the seal groove and seal tooth mating of a labyrinth seal.
Main element number description:
1. a guide structure; 11. a positioning cylinder; 12. a positioning ring; 121. positioning holes; 122. a sealing groove;
13. an annular baffle; 14. a cooling tube; 141. a water inlet; 142. a water outlet;
2. inserting a gun barrel; 21. a connecting ring; 211. connecting holes; 212. a seal tooth;
3. a bolt; 1', an oxygen muzzle; 2', a sublance orifice; 100. a converter flue; 200. and (4) protecting the plate.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "upper" and "lower", "top" and "bottom", "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms.
The first implementation mode comprises the following steps:
as shown in fig. 3 and 4, for convenience of description, the oxygen lance port and the sublance port are collectively referred to as a lance tube, and in order to solve the problem of inconvenient replacement of the lance tube, the present invention provides a guide structure 1 for installing the lance tube, the guide structure 1 includes a positioning cylinder 11 for inserting the lance tube 2, the positioning cylinder 11 is fixed on the outer wall of the converter flue 100, the central axis of the positioning cylinder 11 coincides with the centering center line O of the lance tube 2 on the converter flue 100, the positioning cylinder 11 is communicated with the inside of the converter flue 100, the positioning cylinder 11 is provided with a positioning member for coaxially positioning (i.e. centering) the positioning cylinder 11 and the lance tube 2, for example, the positioning ring 12 in fig. 3, and the lance tube 2 and the centering center line O of the lance tube 2 on the converter flue 100 are centered by centering the lance tube 2 and the positioning cylinder 11.
When the gun barrel 2 is installed, the inserted gun barrel 2 is inserted into the positioning cylinder 11, the positioning piece on the positioning cylinder 11 positions the positioning cylinder 11 and the inserted gun barrel 2 coaxially, so that the alignment of the inserted gun barrel 2 and the converter flue 100 is realized, the alignment is more convenient, when the inserted gun barrel 2 is replaced, the old inserted gun barrel 2 is detached from the guide structure 1, and then the new inserted gun barrel 2 is installed on the guide structure 1.
By adopting the guide structure 1 of the invention, the insertion gun tube 2 is not directly aligned with the alignment central line O on the side convex inclined plane of the converter flue 100, but is aligned with the positioning cylinder 11 to indirectly align with the converter flue 100, the alignment of the insertion gun tube 2 and the positioning cylinder 11 is provided with a positioning piece as a positioning mark, the alignment is more convenient, the problem that the alignment can be completed only by continuously adjusting the installation position when the oxygen gun mouth and the auxiliary gun mouth are installed in the prior art is solved, the oxygen gun mouth and the auxiliary gun mouth are more convenient and rapid to replace, and the guide structure 1 is not required to be detached from the converter flue 100 when the oxygen gun mouth and the auxiliary gun mouth are replaced, so that the converter flue 100 can be prevented from being damaged, and the flue is protected.
When the guide structure 1 of the present invention is used for installing an oxygen lance port, the central axis of the positioning cylinder 11 coincides with the center line O1 of the oxygen lance port on the converter flue 100 (O1 is the converter center line), as shown in fig. 1, and when the guide structure 1 of the present invention is used for installing a sub lance port, the central axis of the positioning cylinder 11 coincides with the center line O2 of the sub lance port on the converter flue 100 (as shown in fig. 1).
As shown in fig. 3, 4 and 6, in an embodiment of the present invention, the positioning element is a positioning ring 12, a central axis of the positioning ring 12 coincides with a central axis of the positioning cylinder 11, the insertion barrel 2 is provided with a connecting ring 21, a central axis of the connecting ring 21 coincides with a central axis of the insertion barrel 2, and in a state that the insertion barrel 2 is inserted into the positioning cylinder 11, the positioning ring 12 and the connecting ring 21 coaxially position the positioning cylinder 11 and the insertion barrel 2 through coaxial fitting, so as to center the insertion barrel 2 and the converter flue 100. This embodiment converts the side convex slope of the converter flue 100 into a horizontal surface of the positioning ring 12, making centering easier.
As shown in fig. 3 and 4, specifically, one end of the positioning cylinder 11 is connected to the converter flue 100, the positioning ring 12 is disposed at the other end of the positioning cylinder 11, for example, the positioning ring 12 is fixed on the outer wall of the other end of the positioning cylinder 11, the connecting ring 21 is disposed on the outer wall of the insertion barrel 2, and the other end of the positioning cylinder 11 is coaxially connected to the insertion barrel 2 through the positioning ring 12 and the connecting ring 21. During installation, the insertion barrel 2 is inserted from the other end of the positioning cylinder 11, inserted into place while the connection ring 21 on the outer wall of the insertion barrel 2 is seated on the positioning ring 12 at the end of the positioning cylinder 11, and then the insertion barrel 2 is installed on the positioning cylinder 11 by centering the connection ring 21 with the positioning ring 12, for example, by meshing the positioning ring 12 with the connection ring 21.
As shown in fig. 6, 7, 8, 9, and 10, in the first technical solution of this embodiment, at least three positioning holes 121 are formed in the positioning ring 12, the at least three positioning holes 121 are uniformly distributed in an annular shape around the central axis of the positioning ring 12, at least three connecting holes 211 are formed in the connecting ring 21, the at least three connecting holes 211 are uniformly distributed in an annular shape around the central axis of the connecting ring 21, a radial distance between each positioning hole 121 and the central axis of the positioning ring 12 is equal to a radial distance between each connecting hole 211 and the central axis of the connecting ring 21, and the positioning ring 12 and the connecting ring 21 are coaxially positioned by aligning the positioning holes 121 and the connecting holes 211 one by one. This scheme adopts locating hole 121 and connecting hole 211 as the pilot mark, and centering operation is convenient more, swift.
For example, the number of the positioning holes 121 is three (as shown in fig. 10) or four (as shown in fig. 9), and correspondingly, the number of the connecting holes 211 is also three (as shown in fig. 8) or four (as shown in fig. 7). For the convenience of installation, the positioning hole 121 may be an elongated hole (as shown in fig. 9 and 10) penetrating through the outer side wall of the positioning ring 12, and the connecting hole 211 may be a circular hole.
As shown in fig. 6, in the present embodiment, the positioning holes 121 and the corresponding connecting holes 211 can be connected by bolts 3 and fastened by nuts, and certainly, a high temperature resistant gasket can be configured to connect the positioning cylinder 11 and the insertion barrel 2, so that the positioning holes 121 of the present embodiment not only play a role in positioning, but also play a role in connection.
In the second technical solution of this embodiment, an annular groove is disposed on the positioning ring 12, a central axis of the annular groove coincides with a central axis of the positioning ring 12, an annular boss capable of cooperating with the annular groove is disposed on the connecting ring 21, the central axis of the annular boss coincides with the central axis of the connecting ring 21, and the positioning ring 12 and the connecting ring 21 are coaxially positioned by embedding the annular boss into the annular groove. This scheme adopts annular groove and annular boss as the pilot mark, and centering operation is convenient more, swift.
In this scheme, in order to fix a position a section of thick bamboo 11 and insert barrel 2 and connect, can set up the through-hole that supplies the bolt to pass on annular groove and annular boss respectively to adopt the bolt to fix a position a section of thick bamboo 11 and insert barrel 2 detachably and connect.
In this embodiment, the positioning ring 12 may be a circular ring or a square ring, and the annular groove may be a circular groove or a square annular groove.
In this embodiment, further, a location section of thick bamboo 11 with insert being connected of barrel 2 and realize through the connection of holding ring 12 and go-between 21, it is sealed through labyrinth seal structure between holding ring 12 and the go-between 21 to with a location section of thick bamboo 11 with insert between the barrel 2 sealed, prevent that external air from being inhaled little negative pressure inside converter flue 100, avoid the potential safety hazard, adopt steam seal or nitrogen gas to seal with prior art and compare, can reduce energy dielectric loss.
As shown in fig. 3, 11, 12, 14, and 15, further, one or more sealing grooves 122 are formed on the positioning ring 12, one or more sealing teeth 212 are formed on the connection ring 21, the sealing teeth 212 are inserted into the sealing groove 122 and form a labyrinth structure with the sealing groove 122, and the bottom surface of the sealing groove 122 and the bottom surface of the sealing teeth 212 are both inclined surfaces to facilitate the butt-joint installation of the positioning ring 12 and the connection ring 21.
As shown in fig. 16, the inclination angle α of the bottom surface of the seal groove 122 is preferably not more than 15 °, and the inclination angle of the bottom surface of the seal tooth 212 is preferably not more than 15 °.
To further increase the tightness of the seal, an asbestos cord may also be placed inside the seal slot 122 to form an asbestos layer seal between the seal slot 122 and the seal teeth 212.
Therefore, the positioning ring 12 is adopted as a positioning member in the present embodiment, which not only facilitates the centering of the insertion barrel 2 and the positioning barrel 11, but also facilitates the connection and sealing of the insertion barrel 2 and the positioning barrel 11.
As shown in fig. 3, in an embodiment of the present invention, the bottom surface of the positioning cylinder 11 is an inclined surface so that the bottom surface of the positioning cylinder 11 can be attached to the side convex inclined surface of the inclined section of the converter flue 100.
As shown in fig. 3, 4 and 6, in an embodiment of the present invention, an annular baffle 13 is disposed on an inner wall of the positioning cylinder 11, an inner diameter of the annular baffle 13 is smaller than an outer diameter of the insertion barrel 2, and an inner diameter of the annular baffle 13 is greater than or equal to the inner diameter of the insertion barrel 2, in a state that the insertion barrel 2 is inserted into the positioning cylinder 11, the insertion barrel 2 abuts against the annular baffle 13, and the annular baffle 13 seals a bottom of an annular gap between the insertion barrel 2 and an inner side wall of the positioning cylinder 11, that is, the annular baffle 13 separates the annular gap from an inner cavity of the insertion barrel 2 to block smoke and ash from entering the annular gap between the insertion barrel 2 and the positioning cylinder 11.
Wherein the shape of the ring-shaped baffle 13 is not limited to a circular ring shape and the shape thereof is consistent with the shape of the bottom surface of the insertion barrel 2.
As shown in fig. 4 and 5, in an embodiment of the present invention, the sidewall of the positioning cylinder 11 is a wall tube structure 14 with water cooling or steam cooling functions, two ends of a wall tube of the wall tube structure 14 are respectively provided with a water inlet 141 and a water outlet 142, the wall tube is bent and extended along the axial direction of the positioning cylinder 11 and is connected to the upper and lower water distribution headers to form a circulating cooling water path, which can reduce the temperature of the cylinder wall of the positioning cylinder 11 and recover the residual heat of the flue gas.
However, the present invention is not limited thereto, as shown in fig. 6 and 11, in another embodiment of the present invention, the sidewall of the positioning cylinder 11 may also be a solid wall plate made of high temperature resistant material, because the flue gas temperature at the converter mouth is as high as 800-1600 ℃, the environmental temperature of the positioning cylinder 11 is high, and in order to prevent the positioning cylinder 11 from deforming at high temperature, the positioning cylinder 11 is preferably able to withstand a high temperature above 1600 ℃. For example, the positioning cylinder 11 is made of cast iron or rare earth alloy, but may be made of other existing high temperature resistant materials.
The second embodiment:
the invention also provides a barrel inserting component, which comprises a barrel inserting pipe 2 and a guide structure 1 for installing the barrel inserting pipe 2, wherein the guide structure 1 in the embodiment has the same structure, working principle and beneficial effect as those in the first embodiment, and is not described again; should insert barrel 2 and insert the barrel for the oxygen rifle or the sublance is inserted the barrel, insert barrel 2 and insert in the barrel 11 of location, the setting element will fix a position barrel 11 and insert barrel 2 coaxial positioning to will insert barrel 2 and insert the centering center line centering of barrel 2 on converter flue 100, insert barrel 2 and be connected with 11 detachably of location section of thick bamboo, so that the dismouting inserts barrel 2.
Specifically, a guard plate 200 is installed on the outer wall of the inclined section of the converter flue 100, if only an oxygen lance port needs to be installed on the converter flue 100, a guide structure 1 is installed on the guard plate 200, the central axis of a positioning cylinder 11 of the guide structure 1 coincides with the centering central line O1 of the oxygen lance port on the converter flue 100 (as shown in fig. 1), and an oxygen lance insertion pipe is inserted into the positioning cylinder 11 of the guide structure 1; if an oxygen lance hole and a sublance hole are required to be installed on the converter flue 100, two guide structures 1 are installed on the guard plate 200, the central axis of the positioning cylinder 11 of the first guide structure 1 is coincident with the centering center line O1 of the oxygen lance hole on the converter flue 100, the central axis of the positioning cylinder 11 of the second guide structure 1 is coincident with the centering center line O2 of the sublance hole on the converter flue 100 (as shown in figure 1), an oxygen lance insertion tube is inserted into the positioning cylinder 11 of the first guide structure 1, and a sublance insertion tube is inserted into the positioning cylinder 11 of the second guide structure 1.
As shown in fig. 4, 6 and 13, the side wall of the lance tube 2 is a wall tube structure having a water cooling or steam cooling function.
According to the invention, the insertion gun barrel 2 and the converter flue 100 are connected through the guide structure 1, so that the insertion gun barrel 2 is convenient to replace, the positioning of the newly inserted gun barrel 2 is convenient, the time for replacing the insertion gun barrel 2 is saved, the insertion gun barrel 2 is not in direct contact with the flue, the flue wall surface scraping damage caused when the insertion gun barrel 2 is detached is avoided, the connection strength of the insertion gun barrel 2 and the flue moving section is enhanced, the central deviation of the insertion gun barrel 2 caused by vibration is avoided, and the normal work of an oxygen lance and an auxiliary lance is ensured.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention. It should be noted that the components of the present invention are not limited to the above-mentioned whole application, and various technical features described in the present specification can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention.
Claims (10)
1. The utility model provides a guide structure for barrel is inserted in installation, a serial communication port, guide structure inserts the barrel male location section of thick bamboo including supplying, a location section of thick bamboo is fixed on the outer wall of converter flue, the central axis of a location section of thick bamboo with it is in to insert the barrel centering center line coincidence on the converter flue, a location section of thick bamboo with the inside intercommunication of converter flue, be equipped with on the location section of thick bamboo with insert the setting element of barrel coaxial positioning.
2. The guiding structure for installing the barrel of inserting barrel according to claim 1, wherein the positioning member is a positioning ring, the central axis of the positioning ring coincides with the central axis of the positioning barrel, the barrel of inserting barrel is provided with a connecting ring, the central axis of the connecting ring coincides with the central axis of the barrel of inserting barrel, and the positioning ring and the connecting ring coaxially position the positioning barrel and the barrel of inserting barrel through coaxial matching.
3. The guide structure for mounting a barrel for inserting barrel as claimed in claim 2, wherein said positioning ring has at least three positioning holes formed therein, at least three positioning holes are distributed annularly and uniformly around a central axis of said positioning ring, said coupling ring has at least three connecting holes formed therein, at least three connecting holes are distributed annularly and uniformly around a central axis of said coupling ring, a radial distance between each positioning hole and a central axis of said positioning ring is equal to a radial distance between each connecting hole and a central axis of said coupling ring, and said positioning ring and said coupling ring are coaxially positioned by aligning said positioning holes and said connecting holes one to one.
4. The guide structure for mounting a barrel for inserting barrel as claimed in claim 2, wherein said positioning ring is provided with an annular groove, the central axis of said annular groove coincides with the central axis of said positioning ring, said connecting ring is provided with an annular boss capable of fitting with said annular groove, the central axis of said annular boss coincides with the central axis of said connecting ring, and said positioning ring and said connecting ring are coaxially positioned by fitting said annular boss into said annular groove.
5. The guide structure for installing the insertion barrel according to claim 2, wherein one end of the positioning cylinder is connected with the flue of the converter, the positioning ring is arranged at the other end of the positioning cylinder, the connecting ring is arranged on the outer wall of the insertion barrel, and the other end of the positioning cylinder is coaxially connected with the insertion barrel in a positioning manner through the positioning ring and the connecting ring.
6. The guide structure for mounting a barrel for insertion according to claim 2, wherein said positioning ring and said coupling ring are sealed by a labyrinth seal.
7. The guide structure for mounting a barrel according to claim 6, wherein the positioning ring has one or more sealing grooves, the connecting ring has one or more sealing teeth, the sealing teeth are inserted into the sealing grooves and form the labyrinth seal with the sealing grooves, and the bottom surfaces of the sealing grooves and the sealing teeth are both inclined surfaces.
8. The guide structure for mounting the insert barrel according to any one of claims 1 to 7, wherein an annular baffle plate is provided on an inner wall of the positioning cylinder, an inner diameter of the annular baffle plate is smaller than an outer diameter of the insert barrel, and an inner diameter of the annular baffle plate is greater than or equal to an inner diameter of the insert barrel, and the insert barrel abuts against the annular baffle plate in a state where the insert barrel is inserted into the positioning cylinder, and the annular baffle plate separates an annular gap between the insert barrel and an inner side wall of the positioning cylinder from an inner cavity of the insert barrel.
9. The guide structure for installing the barrel of the barrel insertion device as claimed in any one of claims 1 to 7, wherein the side wall of the positioning cylinder is a wall tube structure for water cooling or steam cooling, or the side wall of the positioning cylinder is a solid wall plate made of high temperature resistant material.
10. An insert barrel subassembly characterized in that insert barrel subassembly includes insert barrel and the guide structure of any one of claims 1 to 9, insert the barrel and insert the barrel in the location section of thick bamboo, the setting element will the location section of thick bamboo with insert the barrel coaxial positioning, insert the barrel with location section of thick bamboo detachably connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011208041.1A CN112226577A (en) | 2020-11-03 | 2020-11-03 | A guide structure and insert barrel subassembly for barrel is inserted in installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011208041.1A CN112226577A (en) | 2020-11-03 | 2020-11-03 | A guide structure and insert barrel subassembly for barrel is inserted in installation |
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| CN112226577A true CN112226577A (en) | 2021-01-15 |
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|---|---|---|---|
| CN202011208041.1A Pending CN112226577A (en) | 2020-11-03 | 2020-11-03 | A guide structure and insert barrel subassembly for barrel is inserted in installation |
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| CN (1) | CN112226577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755664A (en) * | 2021-07-30 | 2021-12-07 | 阳春新钢铁有限责任公司 | Sealing and fire-sealing method for oxygen lance mouth sleeve of fixed smoke hood |
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2020
- 2020-11-03 CN CN202011208041.1A patent/CN112226577A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755664A (en) * | 2021-07-30 | 2021-12-07 | 阳春新钢铁有限责任公司 | Sealing and fire-sealing method for oxygen lance mouth sleeve of fixed smoke hood |
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