CN214458124U - Oxygen-spraying tuyere small sleeve - Google Patents
Oxygen-spraying tuyere small sleeve Download PDFInfo
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- CN214458124U CN214458124U CN202120610779.4U CN202120610779U CN214458124U CN 214458124 U CN214458124 U CN 214458124U CN 202120610779 U CN202120610779 U CN 202120610779U CN 214458124 U CN214458124 U CN 214458124U
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Abstract
The utility model provides an oxygen-spraying tuyere small sleeve, which comprises a front cap, a front cover, a rear cover, a front cover, a rear cover and a rear cover, wherein the front cover is a conical cavity with an opening at one end; the body is a conical shell, and the small-opening end is hermetically connected with the front cap; the flange is hermetically connected with the large opening end of the body, the flange is penetrated through by the oxygen pipe, and the end surface of the flange is provided with a water inlet and a water outlet; the bottom plate is hermetically connected with the front cap, a through hole is formed in the center of the bottom plate, and a water inlet pipe and a water outlet pipe penetrating through the flange are arranged on the circumference of the bottom plate; the coal injection gas pipe and the oxygen pipe are independently arranged and penetrate through the flange, the bottom plate, the annular water frame and the front cap; the front cap, the body, the flange and the bottom plate are formed by hot extrusion of a semi-continuous casting copper bar. The mechanical strength of the oxygen-spraying tuyere small sleeve is improved through a semi-continuous casting copper bar hot extrusion molding technology, so that the service life of the oxygen-spraying tuyere small sleeve is prolonged.
Description
Technical Field
The utility model belongs to the technical field of COREX stove accessory, more specifically say, relate to a spout oxygen tuyere cover.
Background
The oxygen-spraying tuyere small sleeve is used as a main working accessory of a COREX furnace, the front cap of the oxygen-spraying tuyere small sleeve is in an environment of 2000 ℃, the temperature of slag iron in the furnace is as high as 1400 ℃, and the working environment of the oxygen-spraying tuyere small sleeve is severe. The existing small sleeve for the oxygen spraying tuyere is generally cast at the rear part and forged at the front cap, and the problems of casting cracks, air holes, slag inclusion, low hardness and the like easily occur in the casting process, so that the problem of short service life of the small sleeve for the oxygen spraying tuyere is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a spout oxygen tuyere small sleeve, aim at solving the technical problem that spout oxygen tuyere small sleeve life is short.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a spout oxygen tuyere small cover, include: the oxygen supply device comprises a front cap, a front cover and a water supply pipe, wherein the front cap is a conical cavity with an opening at one end, an annular water frame is arranged in the conical cavity and divides the conical cavity into an outer cavity and an inner cavity, a limiting groove is arranged at the opening end of the front cap, an oxygen passage penetrating through the closed end of the front cap is arranged at the center of the front cap, and an oxygen pipe for oxygen supply to enter is fixedly connected to the oxygen passage;
the body is a conical shell with openings at two ends, and the small end of the body is connected with the front cap in a sealing manner;
the flange is hermetically connected with the large opening end of the body, the center of the flange is penetrated through by the oxygen pipe, and the end face of the flange is provided with a water inlet and a water outlet for cooling water to flow;
the bottom plate is hermetically connected in the limiting groove at the opening end of the front cap, a cavity surrounded by the front cap, the body and the flange is divided into a front cavity and a rear cavity, a through hole hermetically connected with the oxygen channel is formed in the center of the bottom plate, a water inlet pipe for cooling water to flow in and a water outlet pipe for cooling water to flow out are arranged on the circumference of the bottom plate, the water inlet pipe is connected with the outer cavity of the front cap, the water outlet pipe is connected with the inner cavity of the front cap, and the water inlet pipe and the water outlet pipe penetrate through the flange;
the coal injection gas pipe is independent of the oxygen pipe and penetrates through the flange, the bottom plate, the annular water frame and the front cap so that coal gas and oxygen gas can be subjected to meeting and burning when leaving the front cap;
the front cap, the body, the flange and the bottom plate are formed by hot extrusion of a semi-continuous casting copper bar.
As a specific embodiment of this application, the outer terminal surface of the blind end of preceding cap be equipped with the coaxial cylindrical boss of oxygen passageway, be equipped with the external screw thread on the boss, the boss is used for helping the oxygen hose carries out pressure test, accomplishes after pressure test the boss is amputated.
As a specific embodiment of the application, a spiral clapboard which is connected with the annular water frame in a surrounding way is arranged between the outer side of the annular water frame and the outer cavity, a front clapboard which is used for limiting the annular water frame is arranged on the end face of the small port of the annular water frame, and the front clapboard is connected with the oxygen channel of the front cap in a sealing way.
As a specific embodiment of the present application, a partition board is provided in the body to divide the rear cavity into two parts, and the water inlet and the water outlet on the flange are respectively located on two sides of the partition board.
As a specific embodiment of the application, the gas injection pipe penetrates along a water through hole which is formed in the annular water frame and used for communicating the inner cavity with the outer cavity.
As a specific embodiment of the present application, the water inlet pipe and the water outlet pipe are both made of copper tubes.
As a specific embodiment of the present application, the oxygen tube is made of a copper tube.
The utility model provides a spout oxygen tuyere small cover's beneficial effect lies in: compared with the prior art, the utility model provides a spout oxygen tuyere small cover spouts preceding cap, body, flange and the bottom plate of oxygen tuyere small cover through the hot extrusion molding technique preparation of semicontinuous casting bar copper, through having changed the current manufacturing mode who spouts oxygen tuyere small cover, can eliminate the internal defects such as gas pocket, crackle that exist in the current oxygen tuyere small cover manufacturing approach that spouts, improve the mechanical strength such as preceding cap, body, flange and bottom plate hardness and the intensity that spout oxygen tuyere small cover to improve the life who spouts oxygen tuyere small cover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic sectional view of a main view direction of an oxygen-spraying tuyere small sleeve provided by an embodiment of the present invention;
FIG. 2 is a schematic view of the structure in the direction F in FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 1;
FIG. 4 is a schematic view of the initial formation of the front cap of FIG. 1;
FIG. 5 is a schematic view of the structure of FIG. 4 in the direction H;
fig. 6 is a right-side structural schematic view of the annular water frame of the oxygen-spraying tuyere small sleeve in fig. 1.
In the figure: 1. a front cap; 11. a boss; 12. an oxygen channel; 13. a circular hole; 2. a body; 21. a rear cavity; 3. a flange; 31. a water inlet; 32. a water outlet; 4. a base plate; 5. an annular water frame; 51. a front cavity; 511. an outer cavity; 512. an inner cavity; 52. a spiral partition plate; 53. a front bulkhead; 54. a water through hole; 6. a coal gas injection pipe; 7. an oxygen tube; 81. a water inlet pipe; 82. a water outlet pipe; 9. a separator.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the oxygen-spraying tuyere small sleeve of the present invention has the following specific embodiments: the oxygen nozzle sleeve comprises a front cap 1, a body 2, a flange 3 and a bottom plate 4, wherein the front cap 1, the body 2, the flange 3 and the bottom plate 4 are formed by hot extrusion of a semi-continuous casting copper bar, the semi-continuous casting and the hot extrusion processing of the copper bar are both in the prior art, and internal defects such as air holes and cracks existing in the existing oxygen nozzle sleeve manufacturing method can be eliminated by adopting the technology. The front cap 1 is a conical cavity with an opening at one end, an annular water frame 5 is arranged in the conical cavity, the conical cavity is divided into an outer cavity 511 and an inner cavity 512 by the annular water frame 5, a limiting groove is arranged at the opening end of the front cap 1, an oxygen passage 12 penetrating through the closed end of the front cap 1 is arranged at the center of the front cap, and an oxygen pipe 7 for oxygen supply to enter is fixedly connected to the oxygen passage 12; the body 2 is a conical shell with openings at two ends, and the small end is connected with the front cap 1 in a sealing way; the flange 3 is hermetically connected with the large opening end of the body 2, the center of the flange 3 is penetrated by the oxygen pipe 7, and the end surface of the flange 3 is provided with a water inlet 31 and a water outlet 32 for cooling water to flow; the bottom plate 4 is hermetically connected in a limiting groove at the opening end of the front cap 1, and divides a cavity enclosed by the front cap 1, the body 2 and the flange 3 into a front cavity 51 and a rear cavity 21; a through hole hermetically connected with the oxygen channel 12 is formed in the center of the bottom plate 4, a water inlet pipe 81 for cooling water to flow in and a water outlet pipe 82 for cooling water to flow out are arranged on the circumference of the bottom plate 4, the water inlet pipe 81 is connected with an outer cavity 511 of the front cap 1, the water outlet pipe 82 is connected with an inner cavity 512 of the front cap 1, and the water inlet pipe 81 and the water outlet pipe 82 penetrate through the flange 3; the coal injection gas pipe 6 and the oxygen pipe 7 are independently arranged, and the coal injection gas pipe 6 penetrates through the flange 3, the bottom plate 4, the annular water frame 5 and the front cap 1, so that coal gas and oxygen gas can be combusted after meeting at a position away from the front cap 1.
The oxygen injection tuyere small sleeve is arranged on the side surface of the COREX furnace and is used for injecting oxygen into the COREX furnace so as to enable the coal packed bed in the COREX furnace to be combusted. When the oxygen-spraying tuyere small sleeve is installed, the axis is approximately horizontal and is horizontally arranged. The utility model provides a spout oxygen tuyere small sleeve spouts the preceding cap 1 of oxygen tuyere small sleeve, body 2, flange 3 and bottom plate 4 through the hot extrusion forming technique preparation of semicontinuous casting bar copper, through having changed the current manufacturing mode who spouts oxygen tuyere small sleeve, can eliminate the internal defects such as gas pocket that exist in the current oxygen tuyere small sleeve manufacturing approach, crackle, improved the preceding cap 1 of spouting oxygen tuyere small sleeve, body 2, mechanical strength such as hardness and intensity of flange 3 and bottom plate 4 to improve the life who spouts oxygen tuyere small sleeve.
As shown in fig. 1, the front cap 1, the body 2, the flange 3 and the bottom plate 4 in the oxygen-spraying tuyere small sleeve are preferably formed by hot extrusion of a semi-continuous cast copper rod, the water outlet pipe 82 of the water inlet pipe 81 and the oxygen pipe 7 are formed by processing a red copper pipe, and specifically, the front cap 1, the body 2, the flange 3 and the bottom plate 4 are hot extruded after the proper size of the semi-continuous cast rod is taken. The bottom plate 4 is matched with the front cap 1 for processing, corresponding holes communicated with all pipelines are marked and processed on the bottom plate 4, then all the pipelines are welded with the bottom plate 4, wherein a coal injection gas pipe 6 and an oxygen pipe 7 in the oxygen injection tuyere small sleeve are independently arranged, at the moment, coal gas and oxygen are injected into the furnace through different channels, so that the coal gas and the oxygen leave the front cap 1 and meet and burn, a negative pressure area leaves the front cap 1, the damage to the oxygen injection tuyere small sleeve is reduced, and the service life of the oxygen injection tuyere small sleeve is further prolonged. Preferably, the coal injection gas pipe 6 is formed by processing a red copper pipe, and it should be noted that, because the coal injection gas pipe 6 penetrates through the flange 3, the bottom plate 4, the annular water frame 5 and the front cap 1, in order to ensure that the hole sites on the flange 3, the bottom plate 4, the annular water frame 5 and the front cap 1 for passing through the coal injection gas pipe 6 are on the same straight line, a round rod with the same diameter as the coal injection gas pipe 6 can be used for positioning, wherein the bottom plate 4 can be positioned and welded by the coal injection gas pipe 6. After the coal injection gas pipe 6 is welded, a pressure test is carried out to test the sealing property of the welding line. Weld the back and carry out clear welding bead to bottom plate 4 and handle to ensure body 2 and bottom plate 4 in close contact with, improve the leakproofness between body 2 and the bottom plate 4. Then, the body 2 is welded to the bottom plate 4, the body 2 is welded to the front cap 1, and the body 2 is welded to the flange 3. Finally, carry out the welding of flange 3 and each pipeline, it is concrete, when each pipeline is connected with flange 3, can process the groove and carry out the direct welding, it should be noted that, will guarantee that three pipes do not burn through, avoid the pipeline infiltration. And finally, reprocessing the left end face of the flange 3 and sleeving and buckling the corresponding holes. And after the whole oxygen spraying tuyere small sleeve is finished, carrying out a hydraulic test on the whole oxygen spraying tuyere small sleeve, and checking the whole tightness.
As shown in fig. 4, the outer end face of the closed end of the front cap 1 is provided with a cylindrical boss 11 coaxial with the oxygen passage 12, the boss 11 is provided with external threads, the boss 11 is used for assisting the oxygen tube 7 in performing a pressure test, and the boss 11 is cut off after the pressure test is completed. Specifically, the oxygen pipe 7 is welded with the oxygen channel 12 of the front cap 1, the oxygen pipe 7 is subjected to a pressure test in order to check the sealing performance of the oxygen pipe 7 after welding, at this time, the pipe cap can be mounted on the boss 11, one end of the oxygen pipeline is sealed to perform the pressure test, and after the pressure test is completed, the boss 11 is cut off through machining. Preferably, before the pressure test, the left end face of the bottom plate 4 is processed, so that the thickness of the bottom plate 4 is adapted to the width of the positioning groove between the body 2 and the front cap 1 after the welding.
As shown in fig. 1 and 5, a spiral clapboard 52 which is connected with the annular water frame 5 in a surrounding way is arranged between the outer side of the annular water frame 5 and the outer cavity 511, a front clapboard 53 which is used for limiting the annular water frame 5 is arranged on the small-end port end face of the annular water frame 5, and the front clapboard 53 is connected with the oxygen channel 12 of the front cap 1 in a sealing way. It should be noted that the spiral partition plate 52 may be spirally and circularly welded on the circumferential outer surface of the annular water frame 5 to increase the cooling contact area of the circulating cooling water. Wherein, the annular water frame 5 connects the outer cavity 511 and the inner cavity 512 of the front cap 1 through the water through hole 54, the water inlet pipe 81 connects with the outer cavity 511, the water outlet pipe 82 connects with the inner cavity 512, when the circulating cooling water enters the outer cavity 511 through the water inlet pipe 81, the circulating cooling water flows along the spiral clapboard 52 on the annular water frame 5, flows into the inner cavity 512 without stopping, and finally flows out from the water outlet pipe 82. The circulating cooling water absorbs heat in the flowing process, so that the tuyere small sleeve is cooled. The annular water frame 5 is manufactured by blanking a steel plate with a proper fan-shaped size, rolling the annular water frame 5 by using a rolling machine, welding an interface and processing a welding seam. It should be noted that, when the annular water frame 5 is placed, it should be noted that the front partition 53 of the annular water frame 5 is aligned with the inner wall of the front cap 1, and the inner hole of the annular water frame 5 is spot-welded to the oxygen passage 12 of the front cap 1. Meanwhile, the water through holes 54 of the annular water frame 5 for communicating the inner cavity 512 with the outer cavity 511 and the round holes 13 of the front cap 1 for the gas spraying pipes 6 to pass through are on the same central line, and at the moment, in order to ensure that the two holes are on the same central line, the inspection can be carried out by using proper round rods.
As shown in fig. 3, a partition plate 9 is provided in the body 2 to divide the rear cavity 21 into two parts, and the water inlet 31 and the water outlet 32 of the flange 3 are respectively provided at two sides of the partition plate 9. It should be noted that, the partition plate 9 is provided with a channel communicating both sides of the partition plate 9, that is, the cooling water flows into the rear cavity 21 on the side of the water inlet 31 through the water inlet 31 on the flange 3, flows through the rear cavity 21 on the side of the water outlet 32, and flows out from the water outlet 32, and in this process, the rear cavity 21 is cooled.
As shown in fig. 6, the gas injection pipe 6 passes along the water passage hole 54 in the ring-shaped water frame 5 for communicating the outer chamber 511 with the inner chamber 512. Therefore, on the premise that the coal injection gas pipe 6 penetrates through the annular water frame 5, the sealing performance of the annular water frame 5 can be improved, if the coal injection gas pipe 6 penetrates through other positions of the annular water frame 5, the position needs to be sealed, the penetrating position of the coal injection gas pipe 6 is prone to have the problems of poor sealing performance, water seepage and the like, the coal injection gas pipe 6 penetrates through the annular water frame 5 along the limber hole 54, and the problems cannot occur.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Spout oxygen tuyere cover, its characterized in that includes:
the oxygen supply device comprises a front cap, a front cover and a water supply pipe, wherein the front cap is a conical cavity with an opening at one end, an annular water frame is arranged in the conical cavity and divides the conical cavity into an outer cavity and an inner cavity, a limiting groove is arranged at the opening end of the front cap, an oxygen passage penetrating through the closed end of the front cap is arranged at the center of the front cap, and an oxygen pipe for oxygen supply to enter is fixedly connected to the oxygen passage;
the body is a conical shell with openings at two ends, and the small end of the body is connected with the front cap in a sealing manner;
the flange is hermetically connected with the large opening end of the body, the center of the flange is penetrated through by the oxygen pipe, and the end face of the flange is provided with a water inlet and a water outlet for cooling water to flow;
the bottom plate is hermetically connected in the limiting groove at the opening end of the front cap, a cavity surrounded by the front cap, the body and the flange is divided into a front cavity and a rear cavity, a through hole hermetically connected with the oxygen channel is formed in the center of the bottom plate, a water inlet pipe for cooling water to flow in and a water outlet pipe for cooling water to flow out are arranged on the circumference of the bottom plate, the water inlet pipe is connected with the outer cavity of the front cap, the water outlet pipe is connected with the inner cavity of the front cap, and the water inlet pipe and the water outlet pipe penetrate through the flange;
the coal injection gas pipe is independent of the oxygen pipe and penetrates through the flange, the bottom plate, the annular water frame and the front cap so that coal gas and oxygen gas can be subjected to meeting and burning when leaving the front cap;
the front cap, the body, the flange and the bottom plate are formed by hot extrusion of a semi-continuous casting copper bar.
2. The oxygen-spraying tuyere small sleeve as claimed in claim 1, wherein a cylindrical boss coaxial with the oxygen passage is provided on the outer end surface of the closed end of the front cap, the boss is provided with external threads, the boss is used for assisting the oxygen tube in pressure test, and the boss is cut off after the pressure test is completed.
3. The oxygen-spraying tuyere small sleeve as claimed in claim 1, wherein a spiral baffle plate connected with the annular water frame in a surrounding manner is arranged between the outer side of the annular water frame and the outer cavity, a front baffle plate for limiting the annular water frame is arranged on the end face of the small end port of the annular water frame, and the front baffle plate is connected with the oxygen passage of the front cap in a sealing manner.
4. The oxygen-jet tuyere small sleeve as claimed in claim 1, wherein a partition plate dividing said rear chamber into two parts is provided in said body, and said water inlet and said water outlet on said flange are respectively provided at both sides of said partition plate.
5. The oxygen-sparged tuyere stock of claim 1 wherein the gas-sparged pipe passes along a water passage in the annular water frame for communicating the inner chamber with the outer chamber.
6. The oxygen-jet tuyere small sleeve of any one of claims 1 to 5, wherein the inlet pipe and the outlet pipe are made of copper tubes.
7. The oxygen jet tuyere stock of any one of claims 1 to 5, wherein the oxygen tube is made of copper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610779.4U CN214458124U (en) | 2021-03-25 | 2021-03-25 | Oxygen-spraying tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610779.4U CN214458124U (en) | 2021-03-25 | 2021-03-25 | Oxygen-spraying tuyere small sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN214458124U true CN214458124U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120610779.4U Active CN214458124U (en) | 2021-03-25 | 2021-03-25 | Oxygen-spraying tuyere small sleeve |
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| CN (1) | CN214458124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231125A1 (en) * | 2022-05-31 | 2023-12-07 | 昌黎县兴国精密机件有限公司 | Small sleeve apparatus for hydrogen injection tuyere |
-
2021
- 2021-03-25 CN CN202120610779.4U patent/CN214458124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231125A1 (en) * | 2022-05-31 | 2023-12-07 | 昌黎县兴国精密机件有限公司 | Small sleeve apparatus for hydrogen injection tuyere |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oxygen tuyere kit Effective date of registration: 20220824 Granted publication date: 20211022 Pledgee: China Construction Bank Corporation Zhangjiakou Xihuan Sub-branch Pledgor: HEBEI WANFENG METALLURGICAL SPARE PARTS Co.,Ltd. Registration number: Y2022980013496 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |