CN1073469C - Recirculating fluidized bed boiler fly ash separator - Google Patents
Recirculating fluidized bed boiler fly ash separator Download PDFInfo
- Publication number
- CN1073469C CN1073469C CN91100364A CN91100364A CN1073469C CN 1073469 C CN1073469 C CN 1073469C CN 91100364 A CN91100364 A CN 91100364A CN 91100364 A CN91100364 A CN 91100364A CN 1073469 C CN1073469 C CN 1073469C
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- separator
- cylinder body
- fly ash
- fluidized bed
- outer cylinder
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention belongs to a separating device for flue air in a dust method, which is especially suitable for the separation of fly ash of a circulating boiler with a fluidized bed. The direction of airflow in the separator does not need to be changed, and the separator is a lower air-discharge type separating device. The separator is composed of an external cylinder body, a flow stabilizing rod, an air exhaust pipe and a dust collector. The utilization of the separator can keep the pi-shaped structural characteristics of whole boiler. The separator can maintain the pi type structural characteristics of the whole boiler, and the separator has the advantages of small diameter, low loss of flow resistance, compact structure, and convenient installation and maintenance.
Description
The invention belongs to the flue gas dust-separating appliance, be specially adapted to the CFBB flying dust and separate occasion.
Exhaustion type whirlwind air separator in CFBB, being used at present carrying out one of main device pattern that flying dust separates and being.As strange (Lurgi) technology in West Germany Shandong, Finland Ao Silong (Ahlstrom) technology.All adopt in the CFBB of U.S. Bai Teer (Battelle) technology technical equipments such as (MSFBC technology) and go up the exhaustion type whirlwind air separator.The primary structure feature of this separator is directly to enter separator and force it to do strong rotatablely moving downwards and reach the purpose of centrifugal flying dust from the ash-laden gas that burner hearth comes out, and turns back and upwards enter boiler back end ductwork or heating surface through the core pipe from the separator top in air-flow self-separation device bottom.The disadvantage of this separator is that diameter is big, and resistance is big, and power consumption is big.Because the topology layout of last exhaust and huge volume thereof cause the difficulty that is difficult to overcome for the boiler entire arrangement, cause the increase of capital investment.
For overcoming the shortcoming that above-mentioned prior art exists, the invention provides a kind of exhaust recirculating fluidized bed fly ash separator down.
The said recirculating fluidized bed boiler fly ash separator of the present invention is formed by containing grey thermal current air inlet 6, outer cylinder body 7, current stabilization rod 8, blast pipe 9, cinder catcher 11.The exhaust outlet of said blast pipe 9 down, the central lines of outer cylinder body 7, current stabilization rod 8 and blast pipe 9, the established angle of the plane inclined bottom plate 10 of this center line and cinder catcher 11 is α=45 °～60 °; Current stabilization rod 8 is set in outer cylinder body 7, and current stabilization rod 8 is fixed on outer cylinder body 7 tops, and it is hollow obturator, also can be solid; Cinder catcher 11 is a plane inclined bottom plate 10 with the junction surface of blast pipe 9.
The advantage of this invention shows: (one) combines burner hearth and back-end ductwork together, keeps the architectural feature of whole boiler π type.Structure is more reasonable, and the general structure size of boiler is obviously reduced; (2) owing to be provided with the current stabilization rod, can force air-flow current stabilization clavate to become the stronger flow field that rotates downwards, improve the flying dust separating effect on the top of separator; (3) because the flow field of air-flow in separator organized more rationally, fluid resistance loss is obviously descended; (4) diameter of separator reduces, compact conformation, and installation and maintenance are convenient.
Fig. 1 arranges schematic diagram for circulating fluid bed boiler structure after adopting fly ash separator of the present invention;
Fig. 2 is following exhaust recirculating fluidized bed fly ash separator;
Fig. 3 be 130 tons/time fluidized-bed combustion boiler general arrangement.
The present invention will be described further as follows by the following examples:
As shown in Figure 1, following exhaust fly ash separator 2 is installed in the back of boiler furnace 1 outlet horizontal flue and the reversal chamber place between the back-end ductwork 3, and its top is concordant with horizontal flue and burner hearth 1.
Following exhaust recirculating fluidized bed boiler fly ash separator structure as shown in Figure 2, it contains grey thermal current air inlet 6 and connects with horizontal flue 5 (Fig. 3), establishes current stabilization rod 8 in the outer cylinder body 7, makes between them to form the annular release space.Current stabilization rod 8 is fixed on the top surface of outer cylinder body 7.It also can be the hollow shape structure, its center line and outer cylinder body 7 central lines.In outer cylinder body 7, establish the blast pipe 9 that center line overlaps with it in the extended line direction of the center line of current stabilization rod 8, its exhaust outlet is down.It is an integral body that cinder catcher 11 connects with outer cylinder body 7, and it and blast pipe 9 coupling parts are plane inclined bottom plate 10, and promptly the center line of blast pipe 9 connects with certain nonopiate angle of this plate.Its gradient is as the criterion not cause dust stratification, can be by calculating or testing and determine.The angle of cinder catcher plane inclined bottom plate 10 and blast pipe 9 center lines is α=45 °～60 °, and this angle value is according to calculating or test is determined.
Figure 3 shows that 130 tons/time fluidized-bed combustion boiler general arrangement.Contain grey high-temperature gas and rise through superheater 4 from burner hearth 1, the water vapour in the heating superheater 4 makes and becomes superheated steam.The grey thermal current that contains after heat exchange enters exhaust recirculating fluidized bed boiler fly ash separator 2 down provided by the present invention through horizontal flue 5, flying dust will be separated from hot flue gas effectively through cinder catcher 11 and be discharged in this separator, send into and carry out circulating combustion in the stove, and hot flue gas is not folded in separator, enter economizer downwards along blast pipe, discharge through back-end ductwork 3.
Claims (1)
1, a kind of recirculating fluidized bed boiler fly ash separator, by containing grey thermal current air inlet (6), outer cylinder body (7), current stabilization rod (8), blast pipe (9), cinder catcher (11) is formed, it is characterized by, the exhaust outlet of blast pipe (9) down, outer cylinder body (7), the central lines of current stabilization rod (8) and blast pipe (9), the established angle of the plane inclined bottom plate (10) of this center line and cinder catcher (11) is α=45 °～60 °, current stabilization rod (8) is set in outer cylinder body (7), current stabilization rod (8) is fixed on outer cylinder body (7) top, it is hollow obturator, also can be solid, cinder catcher (11) is plane inclined bottom plate (10) with the junction surface of blast pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100364A CN1073469C (en) | 1991-01-17 | 1991-01-17 | Recirculating fluidized bed boiler fly ash separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100364A CN1073469C (en) | 1991-01-17 | 1991-01-17 | Recirculating fluidized bed boiler fly ash separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1063241A CN1063241A (en) | 1992-08-05 |
| CN1073469C true CN1073469C (en) | 2001-10-24 |
Family
ID=4904583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91100364A Expired - Fee Related CN1073469C (en) | 1991-01-17 | 1991-01-17 | Recirculating fluidized bed boiler fly ash separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073469C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081092C (en) * | 1996-11-12 | 2002-03-20 | 姜秀民 | Combined high-temperature vortex separator |
| CN100484639C (en) * | 2006-10-12 | 2009-05-06 | 华中师范大学 | Gas lower exhaustion type whirlwind air-solid separator |
| CN103418229B (en) * | 2013-08-15 | 2015-05-13 | 杭州新世纪能源环保工程股份有限公司 | Flue gas flow equalizer for cooling tower in garbage incineration flue gas processing system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043894U (en) * | 1988-10-22 | 1989-09-06 | 高芒 | Power dust remover |
-
1991
- 1991-01-17 CN CN91100364A patent/CN1073469C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043894U (en) * | 1988-10-22 | 1989-09-06 | 高芒 | Power dust remover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1063241A (en) | 1992-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 91100364.9 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 91200984.5 utility model patent to be given up, and in the 17 volume of the 43 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |