CN211647546U - Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide - Google Patents
Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide Download PDFInfo
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- CN211647546U CN211647546U CN201922472784.9U CN201922472784U CN211647546U CN 211647546 U CN211647546 U CN 211647546U CN 201922472784 U CN201922472784 U CN 201922472784U CN 211647546 U CN211647546 U CN 211647546U
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- flue
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- pipe fitting
- sulfur dioxide
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Abstract
The utility model discloses a variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide, wherein the variable-diameter integral flue consists of a plurality of smoke pipes with different pipe diameters, and two adjacent smoke pipes are connected in a fixed connection mode; welding a pulse pipe fitting in the bottom area of the variable-diameter integral flue at intervals of 2-4 meters, wherein the shell of the pulse pipe fitting is welded with the outer wall of the variable-diameter integral flue to form a whole; the smoke tube comprises a flue round tube and a flue shell, wherein the flue round tube is formed by casting an acid-alkali resistant aluminum-silicon refractory material into a whole in a prefabricated mode, a flue middle plate is wrapped on the flue round tube, the flue shell is wrapped on the flue middle plate, and a connecting pipe is fixedly installed at one end of the flue round tube; the utility model relates to an when guaranteeing that the flue can be long-time emission high concentration SO2, guarantee the flue life-span and ensure that the flue does not take place the flue gas leakage, can also clear up the deposition automatically.
Description
Technical Field
The utility model relates to a variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide.
Background
At present, flue gas emission flues are all constructed by refractory bricks with large diameters (generally larger than 1.8m), flue gas leakage frequently occurs in the use process, meanwhile, a large amount of deposited dust is generated in the flues, and the flues are usually cleaned in a manual mode when the furnaces are shut down or maintained. On one hand, the methods have high investment cost, on the other hand, the methods cause much inconvenience and loss to production, and simultaneously, the service life of the flue is shortened by manual overhaul. In addition, the concentration of SO2 in flue gas discharged from the conventional flue is not high, and the volume concentration is below 50%.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is in order to ensure that the flue can be long-time when discharging high concentration SO2, guarantee the flue life-span and ensure that the flue does not take place the flue gas leakage, can also clear up the deposition automatically, and provide a can clear away the whole flue of emission high concentration sulfur dioxide reducing of deposition.
In order to solve the technical problem, the utility model provides a following technical scheme:
a diameter-variable integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide is disclosed, wherein the diameter-variable integral flue is composed of a plurality of smoke pipes with different pipe diameters, and two adjacent smoke pipes are connected in a fixed connection mode; welding a pulse pipe fitting in the bottom area of the variable-diameter integral flue at intervals of 2-4 meters, wherein the shell of the pulse pipe fitting is welded with the outer wall of the variable-diameter integral flue to form a whole; the smoke tube comprises a flue round tube and a flue shell, wherein the flue round tube is formed by casting an acid-alkali resistant aluminum-silicon refractory material into a whole in a prefabricated mode, the range of the wall thickness of the flue round tube is 25-100mm, a flue middle plate is wrapped on the flue round tube, the flue shell is wrapped on the flue middle plate, and a connecting pipe is fixedly installed at one end of the flue round tube.
Preferably, a channel for cleaning dust by compressed air is arranged in the middle of the pulse pipe fitting, the diameter range of the channel is 20-50mm, a nozzle is arranged at one end of the pulse pipe fitting, the nozzle is positioned in an inner cavity of the variable-diameter integral flue, a pulse valve interface is arranged at the other end of the pulse pipe fitting, and a shell made of heat-resistant stainless steel is wrapped on the pulse pipe fitting; the pulse pipe fitting is formed by pouring acid-resistant, alkali-resistant and refractory materials, and the range of the wall thickness of the pulse pipe fitting is 25-80 mm.
Preferably, the flue intermediate plate is made of heat-resistant stainless steel.
Preferably, the flue shell consists of a high-alumina cotton layer and an aluminum silicate cotton layer.
Preferably, the pipe diameter of the smoke pipe ranges from 300-500mm to 1100-1500 mm.
Preferably, the fixed connection mode comprises a socket type or a plain pipe connection mode.
Preferably, the reducing type integral flue is connected with a graphitizing furnace flue gas discharge port.
The utility model discloses a theory of operation:
the diameter-variable integral flue is connected with a flue gas discharge port of a graphitization furnace, SO2 flue gas of a graphitization high-temperature furnace enters the flue through the discharge port, the diameter of the flue of a first graphitization furnace is 300-400mm, the diameter of the flue of a tenth graphitization furnace is 800-1000mm, the diameter of a main flue is 1100-1500mm, all flue pipes are connected in a socket joint type or flat port type, dust in the flue gas can be continuously deposited at the bottom of the flue to form accumulation, compressed air enters the bottom of the pipeline through pulse pipe fittings arranged in an area every 2-4 meters, the accumulated dust is blown to the movement direction of the flue gas, and when the dust reaches the last flue pipe, the dust can be cleaned in a mechanical or manual mode through a dust cleaning device.
The utility model discloses the beneficial effect who reaches is:
the utility model discloses abandoned the brick mode of traditional flue, adopted whole prefabricated formula mode, the reducing structure that the flue adopted, what each section tobacco pipe was connected adopts is that socket joint formula or plain end pipe link. The minimum pipe diameter of the first flue is 300-1500 mm, and then the first flue is gradually reduced to the last flue, so that when the last total (main) flue is reached, the pipe diameter is still about 1100-1500 mm. Meanwhile, a flue circular tube of the flue is constructed by adopting an acid-resistant and alkali-resistant refractory castable, and pulse pipe fittings for compressed air are additionally arranged at the bottom of the flue every 2-4 meters. On one hand, the flue gas leakage possibility of the flue pipe can be reduced to the greatest extent by the form of the reducing integral prefabricated member, the heat loss in the operation process is reduced, and on the other hand, an acid-resistant, alkali-resistant and refractory material capable of bearing high-temperature and high-concentration SO2 flue gas flow for a long time is adopted. The utility model discloses guaranteed the flue life under this harsh condition. The utility model discloses a pulse mode sends compressed air into the flue bottom through the connecting piece, blows the deposition in the flue to the flue end, then clears up.
The utility model discloses a prefabricated mode becomes holistic flue pipe as the flue inside lining with acid and alkali resistant aluminium silicon refractory material pouring, can bear the flue gas corrosion of high temperature high concentration SO2 for a long time. The utility model discloses a compressed air clearance deposition can eliminate because of the long-time jam that piles up and cause of flue deposition, reduces or cancelled the possibility of blowing out, has improved production efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view of the flue of the present invention;
FIG. 3 is a cross-sectional view of the flue of the present invention;
fig. 4 is a cross-sectional view of the flue of the present invention.
The flue comprises a flue circular tube 1, a flue middle plate 2, a flue shell 3, a connecting pipe 4, a pulse valve interface 5, a nozzle 6, a shell 7, a pulse pipe fitting 8 and a support bracket 9.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1 to 4, a variable diameter type integral flue capable of removing deposited dust and discharging high concentration sulfur dioxide is connected with a graphitizing furnace flue gas discharge port, the variable diameter type integral flue is composed of a plurality of flue pipes with different pipe diameters, two adjacent flue pipes are connected in a fixed connection manner, the fixed connection manner is a socket connection manner, and in other embodiments, the fixed connection manner is a flat pipe connection manner. And welding a pulse pipe fitting 8 in the bottom area of the variable-diameter integral flue at intervals of 2-4 meters, wherein a shell 7 of the pulse pipe fitting 8 is welded with the outer wall of the variable-diameter integral flue to form a whole. In this embodiment, the diameter of the smoke tube ranges from 300mm to 1500mm, in other embodiments, the diameter of the smoke tube may range from 500mm to 1100mm, or from 300mm to 1100mm, or from 500mm to 1500mm, and a support bracket 9 is further fixedly mounted on each flue.
In this embodiment, the smoke tube includes a flue pipe 1 and a flue casing 3, wherein the flue pipe 1 is formed by casting an acid-resistant and alkali-resistant aluminum-silicon refractory material into a whole in a prefabricated manner, the wall thickness ranges from 25mm, 30mm, 60mm and 100mm, the flue pipe 1 is wrapped by a flue intermediate plate 2, and the flue intermediate plate 2 is made of heat-resistant stainless steel. The flue middle plate 2 is wrapped with a flue shell 3, and the flue shell 3 consists of a high-alumina cotton layer and an aluminum silicate cotton layer. And one end of the flue circular tube 1 is fixedly provided with a connecting pipe 4. The method for casting the circular flue tube is common knowledge in the technical field, and the utility model is not described in detail.
In this embodiment, be provided with the passageway that is used for compressed air to clear up the dust in the middle of the pulse pipe fitting 8, the shape of passageway is circular or square, the diameter scope of passageway is 20mm, 30mm, 50 mm. A nozzle 6 is arranged at one end of the pulse pipe fitting 8, the nozzle 6 is positioned in the inner cavity of the variable-diameter integral flue, a pulse valve interface 5 is arranged at the other end of the pulse pipe fitting 8, and a shell 7 made of heat-resistant stainless steel is wrapped on the pulse pipe fitting 8; the pulse pipe fitting 8 is formed by pouring acid-resistant, alkali-resistant and refractory materials, and the range of the wall thickness of the pulse pipe fitting is 25mm, 30mm and 60mm 80 mm.
The utility model discloses a prefabricated mode becomes holistic flue pipe as the flue inside lining with acid and alkali resistant aluminium silicon refractory material pouring, can bear the flue gas corrosion of high temperature high concentration SO2 for a long time. The utility model discloses a compressed air clearance deposition can eliminate because of the long-time jam that piles up and cause of flue deposition, reduces or cancelled the possibility of blowing out, has improved production efficiency.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a can clear away whole flue of high concentration sulfur dioxide reducing formula of emission of deposition which characterized in that: the reducing integral flue consists of a plurality of smoke pipes with different pipe diameters, and two adjacent smoke pipes are connected in a fixed connection mode; welding a pulse pipe fitting in the bottom area of the variable-diameter integral flue at intervals of 2-4 meters, wherein the shell of the pulse pipe fitting is welded with the outer wall of the variable-diameter integral flue to form a whole; the smoke tube comprises a flue round tube and a flue shell, wherein the flue round tube is formed by casting an acid-alkali resistant aluminum-silicon refractory material into a whole in a prefabricated mode, the range of the wall thickness of the flue round tube is 25-100mm, a flue middle plate is wrapped on the flue round tube, the flue shell is wrapped on the flue middle plate, and a connecting pipe is fixedly installed at one end of the flue round tube.
2. The variable diameter type integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide as claimed in claim 1, wherein: a channel for cleaning dust by compressed air is arranged in the middle of the pulse pipe fitting, the diameter range of the channel is 20-50mm, one end of the pulse pipe fitting is provided with a nozzle, the nozzle is positioned in the inner cavity of the variable-diameter integral flue, the other end of the pulse pipe fitting is provided with a pulse valve interface, and a shell made of heat-resistant stainless steel wraps the pulse pipe fitting; the pulse pipe fitting is formed by pouring acid-resistant, alkali-resistant and refractory materials, and the range of the wall thickness of the pulse pipe fitting is 25-80 mm.
3. The variable diameter type integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide as claimed in claim 1, wherein: the flue intermediate plate is made of heat-resistant stainless steel.
4. The variable diameter type integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide as claimed in claim 1, wherein: the flue shell consists of a high-alumina cotton layer and an aluminum silicate cotton layer.
5. The variable diameter type integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide as claimed in claim 1, wherein: the pipe diameter range of the smoke pipe is 300-1100-1500 mm.
6. The variable diameter type integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide as claimed in claim 1, wherein: the fixed connection mode comprises a socket type or plain pipe connection mode.
7. The variable diameter type integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide as claimed in claim 1, wherein: the reducing type integral flue is connected with a graphitizing furnace smoke discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922472784.9U CN211647546U (en) | 2019-12-31 | 2019-12-31 | Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922472784.9U CN211647546U (en) | 2019-12-31 | 2019-12-31 | Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211647546U true CN211647546U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922472784.9U Expired - Fee Related CN211647546U (en) | 2019-12-31 | 2019-12-31 | Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide |
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| CN (1) | CN211647546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622578A (en) * | 2019-12-31 | 2020-09-04 | 江苏润美新材料有限公司 | Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide |
-
2019
- 2019-12-31 CN CN201922472784.9U patent/CN211647546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622578A (en) * | 2019-12-31 | 2020-09-04 | 江苏润美新材料有限公司 | Variable-diameter integral flue capable of removing deposited dust and discharging high-concentration sulfur dioxide |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |