CN214470109U - Tuyere small sleeve of industrial furnace - Google Patents
Tuyere small sleeve of industrial furnace Download PDFInfo
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- CN214470109U CN214470109U CN202120626215.XU CN202120626215U CN214470109U CN 214470109 U CN214470109 U CN 214470109U CN 202120626215 U CN202120626215 U CN 202120626215U CN 214470109 U CN214470109 U CN 214470109U
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Abstract
The utility model provides an industrial furnace tuyere small sleeve, which belongs to the technical field of industrial furnaces and comprises a rear end sleeve body, a fluid director and a front end sleeve body. The rear end sleeve body is of a conical sleeve-shaped structure, the side wall of the rear end sleeve body is of a hollow structure and forms an annular first cavity, the first cavity is suitable for circulating water, and the rear end sleeve body is provided with a water inlet and a water outlet. The fluid director has a baffle structure, is communicated with the water inlet and the water outlet, and is suitable for guiding circulating water in the annular cavity. The front end sleeve body is of a conical sleeve-shaped structure, the side wall of the front end sleeve body is of a hollow structure and forms an annular second cavity, the second cavity is suitable for arranging the fluid director and circulating water, and the rear end sleeve body is connected with the front end sleeve body in a sealing mode so that the first cavity is communicated with the second cavity. The fluid director is arranged in the second cavity and is fixedly abutted with the front end sleeve body in an interference fit manner. The utility model provides an industrial furnace tuyere small sleeve, which aims to solve the technical problem that the industrial furnace tuyere small sleeve is close to the inner welding seam of the air outlet to leak easily.
Description
Technical Field
The utility model belongs to the technical field of industrial furnace, more specifically say, relate to an industrial furnace tuyere cover.
Background
The raw materials in the industrial furnace can be heated by blowing hot air into the industrial furnace, and the hot air is blown into the industrial furnace through the tuyere small sleeve. Because the hot air has high temperature and the tuyere small sleeve extends into the industrial furnace, the tuyere small sleeve works in a high-temperature environment, and circulating cooling water is usually introduced into the tuyere small sleeve to cool the tuyere small sleeve so as to prolong the service life of the tuyere small sleeve.
The existing industrial furnace tuyere small sleeve is generally formed by welding a body copper casting and a front end hot forging together, arranging a fluid director in the front end hot forging, and generally welding and fixing the fluid director in the hot forging. Use one side of industrial furnace kiln tuyere small sleeve circulation hot-blast as the inboard, body cast copper spare and front end forge hot piece are welded connection and form the inner weld in the inboard, and this inner weld is usually nearer apart from the air outlet, and this inner weld is destroyed easily in high temperature and abominable operational environment, and then seepage recirculated cooling water makes the cooling effect variation, leads to industrial furnace kiln tuyere small sleeve to scrap.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an industrial furnace kiln tuyere small sleeve aims at solving the technical problem that industrial furnace kiln tuyere small sleeve is being close to the easy seepage of air outlet department internal weld.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is an industrial furnace tuyere small sleeve, which comprises:
the rear end sleeve body is of a conical sleeve-shaped structure, the side wall of the rear end sleeve body is of a hollow structure and forms an annular first cavity, the first cavity is suitable for circulating water, an air inlet is formed in the large inner diameter end of the conical sleeve-shaped structure of the rear end sleeve body, the rear end sleeve body is provided with a water inlet and a water outlet, and a first connecting part is arranged on one side, far away from the air inlet, of the rear end sleeve body;
the fluid director is provided with a partition plate structure, is respectively and independently communicated with the water inlet and the water outlet, and is suitable for guiding circulating water in the annular cavity;
the front end sleeve body is of a conical sleeve-shaped structure, the side wall of the front end sleeve body is of a hollow structure and forms an annular second cavity, the second cavity is suitable for being provided with the fluid director and is used for circulating water, the small inner diameter end of the conical sleeve-shaped structure of the front end sleeve body is provided with an air outlet, one side of the front end sleeve body, far away from the air outlet, is provided with a second connecting part, and the second connecting part is hermetically connected with the first connecting part, so that the first cavity is communicated with the second cavity, and the air inlet is communicated with the air outlet;
the fluid director is arranged in the second cavity and is fixedly abutted with the front end sleeve body in an interference fit manner.
As a specific implementation mode, the front end cover body includes outer cone section, interior cone section and is close to the link of air outlet, outer cone section is located keeps away from the circulation hot-blast one side, interior cone section is located and is close to the circulation hot-blast one side, the link respectively with outer cone section with interior cone section fixed connection, outer cone section with interior cone section is suitable for to press from both sides tightly fixedly the divertor.
As a specific implementation manner, the fluid director and the inner conical section are welded and fixed at a position close to the second connecting part.
In one specific embodiment, the outer profile of the flow guider is a conical cylindrical structure.
In a specific embodiment, the second connecting portion is welded and fixed to the first connecting portion.
As a specific implementation manner, the first connecting portion and the second connecting portion circulate in one side of the hot wind to form an inner welding seam, the inner welding seam is far away from the air outlet, the first connecting portion and the second connecting portion are far away from the circulation in one side of the hot wind to form an outer welding seam, the outer welding seam is close to the fluid director, and the outer welding seam is close to one side of the air inlet of the fluid director.
As an improved implementation mode, the tuyere small sleeve of the industrial furnace further comprises a water inlet pipe, and the water inlet pipe is communicated with the water inlet and the fluid director.
As an improved implementation mode, the front end sleeve body is a liquid die forging.
The utility model provides an industrial furnace tuyere small sleeve's beneficial effect lies in: compared with the prior art, the utility model discloses industrial furnace kiln tuyere small sleeve, the seal structure of the first connecting portion of during operation and second connecting portion is close to the one end of air intake at the front end cover body, and hot-blast air outlet is kept away from to this seal structure promptly, and high temperature and abominable operational environment are kept away from to this seal structure promptly, make seal structure be difficult to destroyed the seepage circulating water, make industrial furnace kiln tuyere small sleeve can obtain stable cooling, and then has prolonged the life of industrial furnace kiln tuyere small sleeve.
Additionally, the utility model provides an industrial furnace kiln tuyere small sleeve is for dividing the body structure, and the divertor is fixed with front end cover body interference fit butt, and the divertor is easily installed, and this fixed mode easy operation and effectual makes industrial furnace kiln tuyere small sleeve easily manufacturing.
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 cross-sectional view of a tuyere small sleeve of an industrial furnace provided by an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a tuyere small sleeve of an industrial furnace according to another embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the back end cap body of FIG. 1;
fig. 4 is a schematic cross-sectional view of the front end sheath body in fig. 1.
In the figure: 1. a rear end sleeve body; 11. a first cavity; 12. an air inlet; 13. a water inlet; 14. a water outlet; 15. a first connection portion; 2. a front end sleeve body; 21. a second cavity; 22. a connecting end; 23. an air outlet; 24. a second connecting portion; 25. an outer conical section; 26. an inner conical section; 3. a fluid director; 4. a water inlet pipe; 5. an inner weld; 6. and (5) outer welding seams.
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.
Referring to fig. 1, fig. 3 and fig. 4 together, the tuyere stock of the industrial furnace of the present invention will now be described. The industrial furnace tuyere small sleeve comprises a rear end sleeve body 1, a fluid director 3 and a front end sleeve body 2.
The rear end sleeve body 1 is of a conical sleeve-shaped structure, the side wall of the rear end sleeve body is of a hollow structure and forms an annular first cavity 11, the first cavity 11 is suitable for circulating water, an air inlet 12 is formed in the large inner diameter end of the conical sleeve-shaped structure of the rear end sleeve body 1, the rear end sleeve body 1 is provided with a water inlet 13 and a water outlet 14, and a first connecting portion 15 is arranged on one side, far away from the air inlet 12, of the rear end sleeve body 1. The fluid director 3 has a partition structure, is independently communicated with the water inlet 13 and the water outlet 14 respectively, and is suitable for guiding circulating water in the annular cavity. The front end sleeve body 2 is of a conical sleeve-shaped structure, the side wall of the front end sleeve body is of a hollow structure and forms an annular second cavity 21, the second cavity 21 is suitable for being provided with the fluid director 3 and is communicated with circulating water, the small inner diameter end of the conical sleeve-shaped structure of the front end sleeve body 2 is provided with an air outlet 23, the front end sleeve body 2 is provided with a second connecting part 24 on one side far away from the air outlet 23, and the second connecting part 24 is hermetically connected with the first connecting part 15, so that the first cavity 11 is communicated with the second cavity 21, and the air inlet 12 is communicated with the air outlet 23. The fluid director 3 is arranged in the second cavity 21 and is fixedly abutted with the front end sleeve body 2 in an interference fit manner.
The utility model provides an industrial furnace kiln tuyere small sleeve, compared with the prior art, the utility model provides an industrial furnace kiln tuyere small sleeve, the one end that the hot-blast air outlet 23 is kept away from to the seal structure of the first connecting portion 15 of during operation and second connecting portion 24 at the front end cover body 2, this seal structure promptly, this seal structure keeps away from high temperature and abominable operational environment promptly, makes seal structure be difficult to destroyed the seepage circulating water, makes industrial furnace kiln tuyere small sleeve can obtain stable cooling, and then has prolonged the life of industrial furnace kiln tuyere small sleeve.
Additionally, the utility model provides an industrial furnace kiln tuyere small sleeve is for dividing the body structure, and divertor 3 is fixed with 2 interference fit butts of the front end cover body, and divertor 3 easily installs, and this fixed mode easy operation and effectual makes industrial furnace kiln tuyere small sleeve easily manufacturing.
In a specific implementation, the sealing structure of the first connecting portion 15 and the second connecting portion 24 may adopt a welding sealing manner.
When the method is concretely implemented, the fluid director 3 is firstly pressed into the front end sleeve body 2, namely the fluid director 3 is pressed into the second cavity 21, and the front end sleeve body 2 is processed and shaped, so that the fluid director 3 is in interference fit with the front end sleeve body 2 to be abutted and fixed, further the conical surfaces of the fluid director 3 and the front end sleeve body 2 are sealed, and the fluid director 3 is abutted and fixed. And then, the rear end sleeve body 1 and the front end sleeve body 2 are welded and fixed through a first connecting part 15 and a second connecting part 24, the first cavity 11 is communicated with the second cavity 21, and the first cavity 11 and the second cavity 21 circulate cooling water through the water inlet 13 and the water outlet 14.
The fluid director 3 has various forms in the prior art, and its function mainly makes the circulating water circulating wherein can fully heat exchange at the front end cover body 2, because the fluid director 3 is not the invention point of the utility model, do not do the repeated description here.
When the front-end sleeve body 2 is manufactured specifically, liquid die forging integrated forming can be adopted, the outer cylinder of a blank of the front-end sleeve body 2 is conical, the inner cylinder is cylindrical, and the specific process route is as follows: preheating a mould, smelting pure copper, pouring, closing the mould, applying pressure, maintaining the pressure, releasing the pressure and stripping the mould. The preheating temperature of the mould is 200-400 ℃, the pouring temperature is 1100-1160 ℃, and the pressure maintaining time is 10 seconds.
As a specific implementation manner, please refer to fig. 1, fig. 3 and fig. 4, the front end sleeve body 2 includes an outer conical section 25, an inner conical section 26 and a connecting end 22 close to the air outlet 23, the outer conical section 25 is located at a side far away from the circulating hot air, the inner conical section 26 is located at a side close to the circulating hot air, the connecting end 22 is fixedly connected with the outer conical section 25 and the inner conical section 26, and the outer conical section 25 and the inner conical section 26 are suitable for clamping and fixing the fluid director 3. When the fluid director 3 is installed, the fluid director 3 is firstly pressed into the front end sleeve body 2, namely the fluid director 3 is pressed and fixed into the second cavity 21, gaps are reserved among the inner conical section 26, the fluid director 3 and the outer conical section 25 at the moment, the inner conical section 26 is subjected to hole expanding operation, the inner conical section 26, the fluid director 3 and the outer conical section 25 are attached to each other, after hole expanding is completed, the inner conical section 26 and the outer conical section 25 subjected to hole expanding are shaped, conical surfaces of the inner conical section 26, the fluid director 3 and the outer conical section 25 are closed, and the fluid director 3 is pressed and fixed.
As an embodiment, referring to fig. 1 and 4, the fluid director 3 and the inner conical section 26 are welded and fixed at a position close to the second connecting portion 24. The fluid director 3 is tightly attached to the inner conical section 26 and fixed in the second cavity 21 and sealed with the conical surface of the front end sleeve body 2, welding and fixing are added to enable the fluid director 3 to be more stably connected with the front end sleeve body 2, and the working stability of the tuyere small sleeve of the industrial furnace kiln is improved. In addition, before the rear end sleeve body 1 and the front end sleeve body 2 are welded and fixed, the operable space of the fluid director 3 and the front end sleeve body 2 at the position close to the second connecting part 24 is large, and welding is easy.
As a modified embodiment, referring to fig. 1 and 4, the flow guider 3 has a tapered cylindrical shape. Because the second cavity 21 is annular, the conical tubular fluid director 3 is easy to press into the second cavity 21, and after a certain pressure is applied, the conical tubular fluid director 3 can be in interference fit with the front end sleeve body 2 and is fixed in position in the front end sleeve body 2. The conical cylindrical structure of the fluid director 3 makes the fluid director easy to be installed and fixed in the front end sleeve body 2.
As an embodiment, referring to fig. 1, 3 and 4, the second connection portion 24 is welded and fixed to the first connection portion 15. The welding fixation can play a good sealing effect, and the welding fixation has high reliability under a high-temperature environment, so that the tuyere small sleeve of the industrial furnace kiln can obtain a stable sealing effect.
As an embodiment, referring to fig. 1, the first connecting portion 15 and the second connecting portion 24 form an inner weld 5 on a side through which hot air flows, the inner weld 5 is far away from the air outlet 23, the first connecting portion 15 and the second connecting portion 24 form an outer weld 6 on a side far away from the side through which hot air flows, the outer weld 6 is close to the flow guider 3, and the outer weld 6 is on a side of the flow guider 3 close to the air inlet 12. The inner welding seam 5 and the outer welding seam 6 are arranged at different heights, the inner welding seam 5 is arranged on one side of the outer welding seam 6 close to the air inlet 12, namely the second connecting part 24 on the front end sleeve body 2 is arranged at different heights, and the section of the front end sleeve body 2 in the vertical direction is in an M shape at different heights. During operation, the inner welding seam 5 is far away from the hot air outlet 23, namely, the inner welding seam 5 is far away from high temperature and severe working environment, so that the inner welding seam 5 is not easy to be damaged and leaked circulating water is leaked, the tuyere small sleeve of the industrial furnace can be stably cooled, and the service life of the tuyere small sleeve of the industrial furnace is further prolonged. The position of the outer welding seam 6 is the position of the second connecting part 24 on the outer conical section 25, the outer welding seam 6 is close to the fluid director 3, namely the second connecting part 24 on the outer conical section 25 is close to the fluid director 3, so that the fluid director 3 cannot influence the pressing-in due to the overlong outer conical section 25 when being placed into the front end sleeve body 2, and cannot influence the welding with the inner conical section 26 due to the overlong outer conical section 25 after the fluid director 3 is placed into the front end sleeve body 2.
As a modified embodiment, please refer to fig. 2 to 4, the tuyere small sleeve of the industrial furnace further comprises a water inlet pipe 4, and the water inlet pipe 4 is communicated with the water inlet 13 and the fluid director 3. The water inlet pipe 4 guides the circulating water into the fluid director 3, so that the circulating water is prevented from being retained in the rear end sleeve body 1, the circulating water can quickly reach the air outlet 23 area which needs to be cooled most, the circulating water cooling efficiency is improved, the tuyere small sleeve of the industrial furnace is protected from being damaged by high temperature, and the service life of the tuyere small sleeve is prolonged.
In specific implementation, the water inlet pipe 4 can be a seamless steel pipe, and the water inlet pipe 4 can be respectively welded and hermetically connected with the water inlet 13 and the fluid director 3.
As a modified embodiment, please refer to fig. 1, the front end sleeve body 2 is a liquid die forging. The liquid die forging, also known as extrusion casting and continuous forging, is a new metal forming process which not only has the casting characteristic, but also is similar to die forging, and the front end sleeve body 2 of the liquid die forging can avoid the casting defect.
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 (8)
1. Industrial furnace tuyere oversleeve, its characterized in that includes:
the rear end sleeve body is of a conical sleeve-shaped structure, the side wall of the rear end sleeve body is of a hollow structure and forms an annular first cavity, the first cavity is suitable for circulating water, an air inlet is formed in the large inner diameter end of the conical sleeve-shaped structure of the rear end sleeve body, the rear end sleeve body is provided with a water inlet and a water outlet, and a first connecting part is arranged on one side, far away from the air inlet, of the rear end sleeve body;
the fluid director is provided with a partition plate structure, is respectively and independently communicated with the water inlet and the water outlet, and is suitable for guiding circulating water in the annular cavity;
the front end sleeve body is of a conical sleeve-shaped structure, the side wall of the front end sleeve body is of a hollow structure and forms an annular second cavity, the second cavity is suitable for being provided with the fluid director and is communicated with circulating water, the small inner diameter end of the conical sleeve-shaped structure of the front end sleeve body is provided with an air outlet, one side of the front end sleeve body, far away from the air outlet, is provided with a second connecting part, and the second connecting part is hermetically connected with the first connecting part, so that the first cavity is communicated with the second cavity, and the air inlet and the air outlet are communicated with hot air;
the fluid director is arranged in the second cavity and is fixedly abutted with the front end sleeve body in an interference fit manner.
2. The industrial furnace tuyere small sleeve as claimed in claim 1, wherein the front end sleeve body comprises an outer conical section, an inner conical section and a connecting end near the air outlet, the outer conical section is located at a side far away from the hot air circulating, the inner conical section is located at a side near the hot air circulating, the connecting end is fixedly connected with the outer conical section and the inner conical section respectively, and the outer conical section and the inner conical section are suitable for clamping and fixing the fluid director.
3. The industrial furnace tuyere small sleeve of claim 2, wherein the deflector is welded and fixed to the inner conical section at a position near the second connection portion.
4. The industrial furnace tuyere small sleeve of claim 1, wherein the flow deflector is contoured in a tapered cylindrical configuration.
5. The industrial furnace tuyere small sleeve of claim 1, wherein the second connecting portion is welded and fixed to the first connecting portion.
6. The industrial furnace tuyere small sleeve of claim 5, wherein the first connecting portion and the second connecting portion form an inner weld on a side where the hot wind circulates, the inner weld is distant from the air outlet, the first connecting portion and the second connecting portion form an outer weld on a side distant from the side where the hot wind circulates, the outer weld is close to the flow guider, and the outer weld is on a side of the flow guider close to the air inlet.
7. The industrial furnace tuyere small sleeve of claim 1, further comprising a water inlet pipe communicating the water inlet with the flow guider.
8. The tuyere small sleeve of the industrial furnace kiln as claimed in claim 1, wherein the front end sleeve body is a liquid die forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626215.XU CN214470109U (en) | 2021-03-25 | 2021-03-25 | Tuyere small sleeve of industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626215.XU CN214470109U (en) | 2021-03-25 | 2021-03-25 | Tuyere small sleeve of industrial furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214470109U true CN214470109U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120626215.XU Active CN214470109U (en) | 2021-03-25 | 2021-03-25 | Tuyere small sleeve of industrial furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214470109U (en) |
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2021
- 2021-03-25 CN CN202120626215.XU patent/CN214470109U/en active Active
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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: Small set of industrial furnace tuyere 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 |