CN208454910U - A kind of follow-on fluidized-bed gasification furnace center pipe device - Google Patents
A kind of follow-on fluidized-bed gasification furnace center pipe device Download PDFInfo
- Publication number
- CN208454910U CN208454910U CN201821027109.4U CN201821027109U CN208454910U CN 208454910 U CN208454910 U CN 208454910U CN 201821027109 U CN201821027109 U CN 201821027109U CN 208454910 U CN208454910 U CN 208454910U
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- China
- Prior art keywords
- central tube
- collet
- gasification furnace
- fluidized
- scum pipe
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model belongs to fluidization field, in order to solve fluidized bed central tube service life it is short and because central tube influence deslagging, the problem of leading to blowing out, the utility model provides a kind of follow-on fluidized-bed gasification furnace center pipe device, including scum pipe and several central tubes, scum pipe periphery, which is equipped with, distinguishes concordant collet with scum pipe upper and lower side, and central tube is laid in collet, central tube is L-shaped, and the region between central tube and collet passes through heat preservation pouring material filling.Central tube is set to scum pipe periphery, it is completely isolated by collet between each other, center tube outer surface is no longer contacted with high-temperature ash, it avoids central tube and is easy the problem of being washed away abrasion by lime-ash, greatly improve the service life of central tube, simultaneously, scum pipe is separated with the air-flow of center pipe jet, it is more advantageous to the discharge of molten ash, the probability that gasification furnace cinder notch blocks up slag is reduced, enhances the operation stability of fluidized-bed gasification furnace.
Description
Technical field
The utility model belongs to fluidization field, and in particular to a kind of follow-on fluidized-bed gasification furnace central tube dress
It sets.
Background technique
At present in fluidized-bed gasification furnace, using the principle of central jet, central tube is placed in scum pipe, so that central tube
Outer surface is contacted with the high-temperature ash close to 1000 DEG C always in the process of running, and the steam oxygen temperature in pipe is only 150
DEG C, central tube is inside and outside there is also the very big temperature difference, causes central tube service life shorter, longest log is also only less than 3
A month, central tube began to the phenomenon that damaged and fracture occur.
Simultaneously as central tube occupies slag channel, so that scum pipe reduces, the curved of scum pipe especially is risen up into central tube
Be easy to stifled slag at head, cinder notch caused to build bridge, eventually lead to can not deslagging be forced blowing out.
Summary of the invention
The utility model in order to solve fluidized bed central tube service life it is short and because central tube influence deslagging, lead to blowing out
The problem of, a kind of follow-on fluidized-bed gasification furnace center pipe device is provided, so that central tube no longer becomes restriction fluidized bed
The factor of gasification furnace long-period stable operation.
The utility model adopts the following technical solution:
A kind of follow-on fluidized-bed gasification furnace center pipe device, including scum pipe and several central tubes, scum pipe periphery
Equipped with concordant collet is distinguished with scum pipe upper and lower side, central tube is laid in collet, and central tube is L-shaped, central tube
It is stretched out outside collet top at the top of vertical section, the lateral bend loss of central tube extends radially collet lateral wall, central tube and collet
Between region by heat preservation pouring material filling.
The central tube is provided with 4, uniformly distributed around 90 ° of collet central axes interval.
The vertical section outer wall vertical of the central tube is connected with several radial lacing wires, guarantees the vertical stability of central tube.
Wear-resisting pouring material is filled between the collet and deslagging pipe outer wall.Heat preservation pouring material and wear-resisting pouring material can be used
Common heat preservation wear-resistant material, guarantee have corresponding insulating layer and wearing layer.
The utility model has the following beneficial effects:
1, compared with traditional fluidized-bed gasification furnace central tube, central tube is set to scum pipe periphery, passes through folder between each other
Cover completely isolated, center tube outer surface is no longer contacted with high-temperature ash, is avoided central tube and is easy to be washed away abrasion by lime-ash and is asked
Topic, greatly improves the service life of central tube；
2, the utility model central tube uses 90 ° of uniformly distributed structures, and the elbow of central tube is also placed in outside scum pipe, avoids
The case where center pipe bend and high-temperature ash contact, ensure that the stable operation of gasification furnace；
3, because central tube is using in such a way that slag mouth surrounding is evenly distributed with jet port, further expansion fluidized-bed gasification furnace
High temperature reaction zone is conducive to improve the intensity of gasification, meanwhile, scum pipe is separated with the air-flow of center pipe jet, is more advantageous to melting
The discharge of lime-ash reduces the probability that gasification furnace cinder notch blocks up slag, enhances the operation stability of fluidized-bed gasification furnace；
4, in terms of material selection, conventional center pipe needs fully consider the problem of washing away abrasion, and general use is more high
2520 expensive stainless steel steel, and it also requires single, central pipe cost is just more than 50,000 in outer surface overlaying tungsten carbide material
Member, and service life not can guarantee, and the central tube of the utility model is no longer directly contacted with high-temperature ash, can be chosen opposite
Cheap stainless steel material, cost are obviously controlled.
Detailed description of the invention
Fig. 1 is the structural front view of the utility model；
Fig. 2 is the structure top view of the utility model；
In figure: 1- central tube, 2- collet, 3- scum pipe, 4- lacing wire, the wear-resisting pouring material of 5-, 6- keep the temperature pouring material.
Specific embodiment
In conjunction with attached drawing, specific embodiment of the present utility model is described further:
Follow-on fluidized-bed gasification furnace center pipe device as shown in the figure, 3 periphery of gasification furnace scum pipe are equipped with collet 2,
It is laid with 4 vertical central tubes 1 in collet 2, is evenly distributed with for 90 ° of heart septum in collet 2, the bend pipe of each 1 bottom of central tube is worn
2 outer wall of collet is crossed towards outside, 1 top of central tube can be connect by supporting rod with collet 2, ensure that the whole of collet (pipe nipple)
Body stability, the region between central tube 1 and collet 2 are filled by heat preservation pouring material 6, guarantee good thermal insulation.
Four independent central tubes enter burner hearth from gasification furnace furnace bottom, and the steam oxygen of high concentration simultaneously spray by central tube high speed
Fluidized-bed gasification furnace emulsion zone is injected, utilization is jacket structured, and contact central tube no longer directly with the high-temperature ash in scum pipe,
It solves the problems, such as that central tube is easy to be washed away abrasion by lime-ash, while avoiding the problem of leading to deslagging blockage because of central tube,
It ensure that the stable operation of gasification furnace.
When in order to reinforce the adhesive force between central tube and refractory material (heat preservation pouring material), while enhance high-speed flow to pass through
The stability of central tube is welded with several lacing wires 4 in the outer wall vertical of central tube 1.
In order to guarantee that collet is in high-temperature ash contact process to run steadily in the long term, in collet 2 and 3 outer wall of scum pipe
Between be filled with wear-resisting pouring material 5.
Utility model device solves fluidized-bed gasification furnace using the completely isolated of central tube and high-temperature ash is realized
The problem for washing away abrasion of central tube, greatly improves the service life of central tube, is that the long period of fluidized-bed gasification furnace is transported
Row provides reliable guarantee.
The central tube is using in such a way that slag mouth surrounding is evenly distributed with jet port, the further expansion height of fluidized-bed gasification furnace
Warm reaction zone is conducive to improve the intensity of gasification, meanwhile, slagging channel is separated with the air-flow of central jet, is more advantageous to melting ash
The discharge of slag reduces the probability that gasification furnace cinder notch blocks up slag, enhances the operation stability of fluidized-bed gasification furnace.
Claims (4)
1. a kind of follow-on fluidized-bed gasification furnace center pipe device, it is characterised in that: including scum pipe (3) and several central tubes
(1), scum pipe (3) periphery, which is equipped with, distinguishes concordant collet (2) with scum pipe (3) upper and lower side, and central tube (1) is laid in collet
(2) in, central tube (1) is L-shaped, stretches out outside collet (2) top at the top of the vertical section of central tube (1), the transverse direction of central tube (1)
Bend loss extends radially collet (2) lateral wall, and the region between central tube (1) and collet (2) is filled out by keeping the temperature pouring material (6)
It fills.
2. follow-on fluidized-bed gasification furnace center pipe device according to claim 1, it is characterised in that: the central tube
(1) 4 are provided with, it is uniformly distributed around 90 ° of collet (2) central axes interval.
3. follow-on fluidized-bed gasification furnace center pipe device according to claim 2, it is characterised in that: the central tube
(1) vertical section outer wall vertical is connected with several radial lacing wires (4).
4. follow-on fluidized-bed gasification furnace center pipe device according to claim 3, it is characterised in that: the collet
(2) wear-resisting pouring material (5) are filled between scum pipe (3) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821027109.4U CN208454910U (en) | 2018-06-30 | 2018-06-30 | A kind of follow-on fluidized-bed gasification furnace center pipe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821027109.4U CN208454910U (en) | 2018-06-30 | 2018-06-30 | A kind of follow-on fluidized-bed gasification furnace center pipe device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208454910U true CN208454910U (en) | 2019-02-01 |
Family
ID=65170347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821027109.4U Active CN208454910U (en) | 2018-06-30 | 2018-06-30 | A kind of follow-on fluidized-bed gasification furnace center pipe device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208454910U (en) |
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2018
- 2018-06-30 CN CN201821027109.4U patent/CN208454910U/en active Active
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