CN212869790U - Composite air port device with replaceable nozzle - Google Patents
Composite air port device with replaceable nozzle Download PDFInfo
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- CN212869790U CN212869790U CN202021753653.4U CN202021753653U CN212869790U CN 212869790 U CN212869790 U CN 212869790U CN 202021753653 U CN202021753653 U CN 202021753653U CN 212869790 U CN212869790 U CN 212869790U
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Abstract
The utility model discloses a combined type wind gap device with a replaceable nozzle, relating to the field of solid waste gasification melting furnaces. The device comprises a tuyere body, a tuyere cap and a nozzle, wherein the tuyere body is formed by welding a stainless steel outer pipe, a stainless steel inner pipe, a flange I, a flange II and a flow isolating plate, the flange I is used for connecting an air supply system, and the flange II is used for connecting a furnace body connecting part; the tuyere cap is welded with the stainless steel outer pipe and the stainless steel inner pipe of the tuyere body; a detachable nozzle is arranged in the tuyere cap, the outer wall of the nozzle is matched with an inner hole of the tuyere cap, and the inner hole has a taper; the flow isolating plate is located the cavity that stainless steel outer tube, stainless steel inner tube and wind gap cap formed, and its turn-ups weld on the stainless steel outer tube inner wall, divide into inner chamber and exocoel with the cavity, and the inner chamber of its formation connects the inlet tube, and the exocoel connects the outlet tube, the utility model discloses an interchangeable nozzle has reached convenient change wind gap area to change the wind speed, change the purpose that the wind gap material is suitable for different wind temperature conditions and medium.
Description
Technical Field
The utility model relates to a solid waste gasification melting furnace tuyere device, in particular to a composite tuyere device with an interchangeable nozzle.
Background
In the production process of the gasification melting furnace, the blast air volume needs to be adjusted according to the characteristics of furnace materials and process requirements, the size of the tuyere, namely the area of the tuyere, is fixed after the design and manufacture of the tuyere device are finished under the general condition, and when the air volume is adjusted, the blast kinetic energy of the tuyere is changed, so that the fuel combustion, the furnace gas and the temperature distribution are directly influenced. For a multi-tuyere melting furnace, different tuyere areas are needed, an oxygen nozzle for blowing oxygen is needed, a smaller tuyere area is needed, and a plurality of tuyere devices are inevitably needed to be designed and manufactured to meet production requirements.
Disclosure of Invention
The utility model discloses a solve above-mentioned problem, provide a take combined type wind gap device of interchangeable nozzle, only need to change the nozzle and can adapt to multiple production situation.
The utility model discloses a take combined type wind gap device of interchangeable nozzle, its main role is in the normal atmospheric temperature that the air feed system sent, high temperature air drum into the furnace body, consequently its flange I and flange II are connected with the flange location of air feed system and furnace body adapting unit respectively for its easy to assemble and maintenance. This combined type wind gap device is the water jacket structure that comprises wind gap cap and tuyere body, utilize circulating water cooling, because this structure requires wholly to have certain intensity, and still need certain heat resistance, consequently select the inside and outside pipe of stainless steel material making the tuyere body, stainless steel inner tube and stainless steel outer tube promptly, simultaneously because of the stove internal temperature is too high, the part that stretches into in the stove needs its heat conductivity strong, can be quick with higher temperature through intracavity rivers transmission away, copper's wind gap cap has been designed, stainless steel inside and outside pipe and copper's wind gap cap has just formed combined type structure like this. The detachable nozzle is arranged in the tuyere cap made of copper in the composite tuyere device, the material can be replaced, the inner diameter size of the tuyere cap can be changed, and the blowing speed is controlled by changing the inner diameter size, namely the tuyere area, so that the blowing kinetic energy is realized. The composite tuyere can be used as an oxygen lance by replacing the oxygen nozzle. If the spraying of pulverized coal, dust and other substances is also needed, the nozzle and the pipe fitting with the powder spraying function can be replaced to achieve the purpose.
The whole composite tuyere device mainly comprises a tuyere body, a tuyere cap and a nozzle, wherein the rear ends of a stainless steel inner pipe and a stainless steel outer pipe of the tuyere body are respectively welded on a flange I to form a concentric sleeve, the inner wall and the outer wall of the tuyere cap are respectively welded with the front ends of the stainless steel inner pipe and the stainless steel outer pipe of the tuyere body, so that a closed cavity is formed, a flow partition plate is arranged between the stainless steel inner pipe and the stainless steel outer pipe in the cavity and is a stainless steel pipe with an outer flanging, the outer flanging of the flow partition plate is welded on the inner wall of the stainless steel outer pipe to divide the cavity into an inner cavity and an outer cavity, and the flow partition plate aims to guide cooling water entering a closed space to have a certain flow direction when the cooling water is continuously injected into the stainless steel outer pipe, so that the inside of the stainless steel inner pipe is ensured to be continuously cooled, and the water after heat exchange. The stainless steel outer pipe is provided with a water inlet pipe and a water outlet pipe which are respectively communicated with the inner cavity and the outer cavity, the stainless steel outer pipe is also welded with a flange II, the air port body is arranged on the furnace body connecting part through the flange II, and the flange I is connected to the air supply system.
The tuyere cap is made of cast or punched copper alloy, and an inner hole of an outlet section of the tuyere cap is a conical hole.
The nozzle is a circular truncated cone body with a central hole and is arranged in the conical hole of the tuyere cap, and the circular truncated surface of the nozzle is matched with the conical hole in the tuyere cap.
The utility model discloses the specific operation does: according to the requirements of the air inlet quantity and the air inlet temperature required in the furnace in actual production operation, the material and the inner diameter of the nozzle are selected, the nozzle meeting the conditions is placed into the flange I, slightly pressed and installed in the hole of the tuyere cap, and is fixedly connected with the furnace body connecting part through the flange II, and then the flange I is connected with an air supply system. When the air supply starts, the water inlet pipe of the stainless steel outer pipe starts to inject cooling water, the water flows forwards from the space between the flow partition plate and the stainless steel inner pipe to cool the stainless steel inner pipe, the stainless steel outer pipe, the tuyere cap and the nozzle, and the water after heat exchange flows to the space between the flow partition plate and the stainless steel outer pipe, flows backwards rapidly and finally flows out from the water outlet pipe. If the operating conditions in the furnace change, new requirements can be met only by replacing the nozzles. In the working state, the nozzle can be fixed in the tuyere cap by wind pressure, and after the tuyere cap is normally operated, heat-resistant glue can be applied to the joint of the rear part of the nozzle and the tuyere cap for stabilization.
Preferably, the central orifice of the nozzle is conical.
Preferably, the nozzle is made of the same material as the tuyere cap.
Preferably, the nozzle is made of high-temperature-resistant silicon carbide material.
Preferably, the nozzle has a duct for blowing the powdery substance.
Compared with the prior art the utility model discloses following beneficial effect has: the utility model provides a combined type wind gap device with interchangeable nozzle, the wind gap device adopts two kinds of materials of stainless steel and copper to form the water jacket part, not only satisfies the strength requirement of the overall structure, but also satisfies the purpose of rapid heat exchange at the nozzle position, makes it exert different characteristics at different positions; the nozzle convenient to disassemble achieves the purpose of changing the area of the air port, the material of the nozzle can be changed along with the difference of the media blown in, the production flexibility is improved, and the production cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are labeled as follows: 1-tuyere body, 2-tuyere cap, 3-nozzle, 4-stainless steel inner tube, 5-stainless steel outer tube, 6-flange II, 7-flange I, 8-flow isolating plate, 9-water inlet tube, 10-water outlet tube and 11-furnace body connecting part.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
A composite tuyere device with a replaceable nozzle, as shown in fig. 1: the tuyere body 1 is formed by welding a stainless steel inner pipe 4, a stainless steel outer pipe 5, a flange I7, a flange II 6 and a flow isolating plate 8, the rear end of the stainless steel inner pipe 4 and the rear end of the stainless steel outer pipe 5 are welded on the flange I7 together, and the flange I7 is used for connecting an air supply system; the flange II 6 is welded on the outer side of the stainless steel outer pipe 5, and the tuyere body 1 is arranged on the furnace body connecting part 11 through the flange II 6; the front ends of the stainless steel inner tube 4 and the stainless steel outer tube 5 are both welded with the tuyere cap 2 to form a closed cavity; the inner hole of the tuyere cap 2 is a conical hole, a detachable nozzle 3 is arranged in the inner hole of the tuyere cap 2, the outer wall of the nozzle 3 is matched with the inner hole of the tuyere cap 2, the inner wall of the nozzle 3 has conicity, and the nozzle 3 and the tuyere cap 2 are mutually positioned; the flow partition plate 8 is positioned in a cavity formed by the stainless steel inner tube 4, the stainless steel outer tube 5 and the tuyere cap 2, an outward flanging at the rear part of the flow partition plate 8 is welded on the inner wall of the stainless steel outer tube 5 to divide the cavity into an inner cavity and an outer cavity, the stainless steel outer tube 5 is provided with a water inlet tube 9 and a water outlet tube 10, the water inlet tube 9 is positioned in the inner cavity formed by the flow partition plate 8 and the stainless steel inner tube 4, and the water outlet tube 10 is positioned in the outer cavity formed by the flow partition plate 8 and the stainless steel outer tube 5.
The embodiment specifically operates as follows: according to the difference of the air inlet temperature, the molten material and the blowing-in medium, the inner diameter and the material of the nozzle 3 are selected, the nozzle 3 meeting the conditions is placed from the flange I7 and is tightly clamped on the head of the tuyere cap 2 through the outer diameter taper, and the change of the air speed is realized by changing the inner diameter taper; then the whole composite tuyere device is arranged at the corresponding position of the furnace body and is fixedly connected with a furnace body connecting part 11 through a flange II 6, and then a flange I7 is connected with an air supply system; when the air supply starts, the water inlet pipe 9 of the stainless steel outer pipe 5 starts to inject cooling water, the water flows forwards between the flow partition plate 8 and the stainless steel inner pipe 4 to cool the stainless steel inner pipe 4, the tuyere cap 2 and the nozzle 3, and the flow partition plate 8 has a partition guiding function on an inner cavity and guides the cooling water to flow between the flow partition plate 8 and the stainless steel outer pipe 5 again, and the cooling water flows backwards quickly and finally flows out of the water outlet pipe 10 to flow out of the tuyere device; the cooling water needs to be supplied and discharged through cooling system piping. If the operating conditions in the furnace change, only the replaceable nozzle is replaced without replacing the whole tuyere device; when pure oxygen needs to be blown in, the oxygen nozzle can be replaced and can be used as an oxygen lance; if other powdery substances need to be blown in, the corresponding nozzle and the corresponding guide pipe can be replaced, and the nozzle and the guide pipe enter from the flange I7 and are arranged in the tuyere cap.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a take combined type wind gap device of interchangeable nozzle which characterized in that: the tuyere body (1) is formed by respectively welding the rear ends of a stainless steel inner pipe (4) and a stainless steel outer pipe (5) and a flange I (7) to form a concentric sleeve, the front ends of the stainless steel inner pipe (4) and the stainless steel outer pipe (5) are respectively welded with the inner wall and the outer wall of the tuyere cap (2) to form a closed cavity, a flow partition plate (8) is arranged between the stainless steel inner pipe (4) and the stainless steel outer pipe (5), the flow partition plate (8) is a stainless steel pipe with an outer flanging, the outer flanging of the flow partition plate (8) is welded on the inner wall of the stainless steel outer pipe (5) to divide the cavity into an inner cavity and an outer cavity, a water inlet pipe (9) and a water outlet pipe (10) are arranged on the stainless steel outer pipe (5) and are respectively communicated with the inner cavity and the outer cavity, a flange II (6) is further welded on the stainless steel outer pipe (5), the air port body (1) is arranged on a furnace body connecting part (11) through a flange II (6), and the flange I (7) is connected to an air supply system;
the tuyere cap (2) is made of cast or punched copper alloy, and an inner hole of an outlet section of the tuyere cap (2) is a conical hole;
the nozzle (3) is a circular truncated cone body with a central hole and is arranged in the conical hole of the tuyere cap (2), and the circular truncated cone surface of the nozzle (3) is matched with the inner conical hole of the tuyere cap (2).
2. The composite tuyere device with the replaceable nozzle of claim 1, wherein: the central hole of the nozzle (3) is conical.
3. The composite tuyere device with the replaceable nozzle of claim 1, wherein: the nozzle (3) is made of the same material as the tuyere cap (2).
4. The composite tuyere device with the replaceable nozzle of claim 1, wherein: the nozzle (3) is made of high-temperature-resistant silicon carbide material.
5. The composite tuyere device with the replaceable nozzle of claim 1, wherein: the nozzle (3) is provided with a duct for spraying the powdery substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021753653.4U CN212869790U (en) | 2020-08-20 | 2020-08-20 | Composite air port device with replaceable nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021753653.4U CN212869790U (en) | 2020-08-20 | 2020-08-20 | Composite air port device with replaceable nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212869790U true CN212869790U (en) | 2021-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021753653.4U Active CN212869790U (en) | 2020-08-20 | 2020-08-20 | Composite air port device with replaceable nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212869790U (en) |
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2020
- 2020-08-20 CN CN202021753653.4U patent/CN212869790U/en active Active
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