CN202040807U - Low-temperature multitube separator in recirculating fluidized bed - Google Patents
Low-temperature multitube separator in recirculating fluidized bed Download PDFInfo
- Publication number
- CN202040807U CN202040807U CN2011201284445U CN201120128444U CN202040807U CN 202040807 U CN202040807 U CN 202040807U CN 2011201284445 U CN2011201284445 U CN 2011201284445U CN 201120128444 U CN201120128444 U CN 201120128444U CN 202040807 U CN202040807 U CN 202040807U
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- plate
- cylinder
- fluidized bed
- recirculating fluidized
- separator
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Abstract
The utility model discloses a low-temperature multitube separator in a recirculating fluidized bed, which comprises a shell, a footstep plate, an elliptical hole bottom plate, a separation drum, an air inlet, an eccentric diversion cone and a smoke discharge tube, wherein the shell is internally provided with the footstep plate; the elliptical hole bottom plate is arranged below the footstep plate; the separation drum is placed above the footstep plate; the separation drum consists of the tangential air inlet and the eccentric diversion cone; the smoke discharge tube is arranged at the lower part of the eccentric diversion cone of the separation drum; the upper part of the smoke discharge tube is fixed on the lower surface of the footstep plate; and the lower part of the smoke discharge tube is fixed above the elliptical hole bottom plate. The separator has higher separation efficiency, and the service life of the separation drum is longer.
Description
Technical field
The utility model relates to a kind of separator that is applied to boiler, low temperature multitube separator in a kind of recirculating fluidized bed of saying so more specifically.
Background technology
At present, CFBB has combustion efficient height, can reach more than 90%, and is higher more than 20% than the boiler thermal output of existing layer combustion system, and coal adaptability is wide, no matter be bituminous coal, anthracite or gangue can use.The boiler of existing layer combustion system can only use high-quality bituminous coal.But the multitube separator that uses in the cryogenic separation scheme in the existing recirculating fluidized bed adopts double helix whirlwind minor structure more, the difficult problem of this structure maximum is that actual separation efficient is on the low side, generally be lower than 90%, and the serious wear of cylinder and whirlwind, service life is too short, and must partly or entirely change cylinder and whirlwind during Jie general service life about 1 year, otherwise separative efficiency can be lower, and the unburned carbon in flue dust of boiler is sharply risen.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of separative efficiency higher, low temperature multitube separator in the recirculating fluidized bed of cylinder longer service life.
The technical scheme that the utility model solves above-mentioned technical problem is: low temperature multitube separator in a kind of recirculating fluidized bed, comprise housing, stepped plate, elliptical aperture base plate, cylinder, air inlet, eccentric deflection cone and smoke exhaust pipe, in the described housing stepped plate is arranged, the elliptical aperture base plate is arranged below the stepped plate, place cylinder above the stepped plate, cylinder is made up of tangential admission mouth and eccentric deflection cone, smoke exhaust pipe is arranged at the eccentric deflection cone bottom of cylinder, smoke exhaust pipe top is fixed on the lower surface of stepped plate, and the bottom is fixed on above the elliptical aperture base plate.
Owing to adopt technique scheme, the beneficial effects of the utility model are: low temperature multitube separator does not have the design of whirlwind in the recirculating fluidized bed that (1) employing housing, stepped plate, elliptical aperture base plate, cylinder, air inlet, eccentric deflection cone and smoke exhaust pipe are formed, and can avoid owing to the gap between whirlwind and the cylinder influences separative efficiency.(2) adopt the deflection cone design can effectively prevent wearing and tearing, and improve separative efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, low temperature multitube separator in a kind of recirculating fluidized bed, it is characterized in that, comprise housing 1, stepped plate 2, elliptical aperture base plate 3, cylinder 4, air inlet 5, eccentric deflection cone 6 and smoke exhaust pipe 7, in the described housing 1 stepped plate 2 is arranged, elliptical aperture base plate 3 is arranged below the stepped plate 2, place cylinder 4 above the stepped plate 2, cylinder 4 is made up of tangential admission mouth 5 and eccentric deflection cone 6, smoke exhaust pipe 7 is arranged at eccentric deflection cone 6 bottoms of cylinder 4, smoke exhaust pipe 7 tops are fixed on the lower surface of stepped plate 2, and the bottom is fixed on above the elliptical aperture base plate 3.
Operation principle of the present utility model is: high temperature dust flue gas (350 ~ 500 ℃) enters in the cylinder 4 by the tangential admission mouth 5 of cylinder 4, because the effect of eccentric deflection cone 6, flue gas produces and rotatablely moves, simultaneously also owing to be negative pressure in the smoke exhaust pipe 7, flue gas also can move downward, therefore flue gas is the downward compound motion of rotation in cylinder 4, because the principle of inertia of circular motion, in the flue gas unburned completely coal dust (heavy more) just be distributed in skin, having burnt completely in the flue gas, coal dust (light more) just is distributed near near the central core the deflection cone 6, the layering flue gas is dropping near the exhaust opening 7, contain the coal ash flue gas completely that burns, siphon away to deduster by exhaust opening 7 and to discharge, other flue gas that contains imperfect combustion complete coal dust drops on the oval base plate 3, spontaneous current returns burner hearth and rekindles to the bottom after the collection.
Claims (1)
1. low temperature multitube separator in the recirculating fluidized bed, it is characterized in that, comprise housing, stepped plate, elliptical aperture base plate, cylinder, air inlet, eccentric deflection cone and smoke exhaust pipe, in the described housing stepped plate is arranged, the elliptical aperture base plate is arranged below the stepped plate, place cylinder above the stepped plate, cylinder is made up of tangential admission mouth and eccentric deflection cone, smoke exhaust pipe is arranged at the eccentric deflection cone bottom of cylinder, and smoke exhaust pipe top is fixed on the lower surface of stepped plate, and the bottom is fixed on above the elliptical aperture base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201284445U CN202040807U (en) | 2011-04-27 | 2011-04-27 | Low-temperature multitube separator in recirculating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201284445U CN202040807U (en) | 2011-04-27 | 2011-04-27 | Low-temperature multitube separator in recirculating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040807U true CN202040807U (en) | 2011-11-16 |
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ID=44968248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201284445U Expired - Lifetime CN202040807U (en) | 2011-04-27 | 2011-04-27 | Low-temperature multitube separator in recirculating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999869A (en) * | 2016-07-01 | 2016-10-12 | 安德油气工艺技术(天津)有限公司 | Self-circulation two-stage axial gas-liquid separation cyclone tube |
-
2011
- 2011-04-27 CN CN2011201284445U patent/CN202040807U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999869A (en) * | 2016-07-01 | 2016-10-12 | 安德油气工艺技术(天津)有限公司 | Self-circulation two-stage axial gas-liquid separation cyclone tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |