CN203215666U - Circulating fluidized bed boiler with automatic negative-pressure ash suction device - Google Patents
Circulating fluidized bed boiler with automatic negative-pressure ash suction device Download PDFInfo
- Publication number
- CN203215666U CN203215666U CN 201320219025 CN201320219025U CN203215666U CN 203215666 U CN203215666 U CN 203215666U CN 201320219025 CN201320219025 CN 201320219025 CN 201320219025 U CN201320219025 U CN 201320219025U CN 203215666 U CN203215666 U CN 203215666U
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- China
- Prior art keywords
- ash
- boiler
- fluidized bed
- suction device
- dust
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a fluidized bed boiler and particularly relates to a circulating fluidized bed boiler with an automatic negative-pressure ash suction device. The technical problems of ash discharge pollution and high labor intensity caused by the commonly used ash discharging method at present are solved. The circulating fluidized bed boiler with the autoamtic negative-pressure ash suction device comprises a return feeder, a water film dust scrubber with a dust inlet in the side wall at the lower part, the automatic negative-pressure ash suction device, as well as an induced draft fan, wherein the automatic negative-pressure ash suction device comprises a boiler return ash pipe, one end of the boiler return ash pipe is hermetically connected with an ash outlet of the return feeder; the other end of the boiler return ash pipe is hermetically connected with the ash inlet in the side wall of the water film dust scrubber; the induced draft fan is arranged at a part corresponding to the dust inlet, on the side wall of the water film dust scrubber. By virtue of the circulating fluidized bed boiler, air pollution is alleviated, the problem of difficult transportation of return ash is solved, the working environment of staff is improved, and the labor intensity of staff is alleviated.
Description
Technical field
The utility model relates to Fluidized Bed Boiler, is specially a kind of CFBB that negative pressure is inhaled apparatus for ash automatically that is provided with.
Background technology
CFBB is used widely in fields such as generating, heating because of its high-efficiency low-pollution.Coal ash circulation after CFBB will burn by special equipment is sent in the burner hearth, circulating combustion, make the more abundant thorough of fuel combustion, therefore can the lower fuel such as gangue of burning quality, the materials such as dust that comprise in the flue dust that burning back generates then are delivered to the water dust scrubber that inside has cavity structure through the cyclone separator on the boiler to be separated with flue gas, have dust inlet on the lower sides of water dust scrubber, the below is provided with dust-exhausting port, and dust is discharged the back from dust-exhausting port and is transported to the 8 sedimentations processing of dedusting pond by the dedusting pipeline 7 that is connected with dust-exhausting port.Also can remain some in the fuel behind the circulating combustion and not possess the returning charge ash that burning is worth, for the less CFBB of capacity (particularly evaporation capacity is smaller or equal to the boiler of 15t/h), discharge boiler body by the material returning device ash-removing mouth of boiler body below usually.The ashes (being called the returning charge ash again) of discharging adopt artificial treatment usually.The process of whole ash discharge begins to finish to being drawn out to the place from putting grey link, often causes the harm of following four aspects in this course:
1, pollutes indoor environment; The material returning device ash discharge is superfine, and boiler shop causes a large amount of dirt to fly upward phenomenon during discharging;
2, returning charge transportation difficulty, labour intensity is big; The returning charge ash is high-temperature material, and the accumulating car can not use pneumatic tire, can only use solid tire, and the wheel slight drag is big, transports difficulty;
3, there is certain potential safety hazard; Returning charge ash temperature is very high, and superfine, and to flowing as water sample on the ground, particularly sleety weather is inverted on the ground vaporization at once, causes the returning charge ash mobile better, also hurts the staff easily;
4, the dust of boiler discharge is serious to atmosphere pollution, and human and other animal and plant are all had great harm, and critical human health.
In view of present general ash discharge method often causes the problems referred to above, therefore press for a kind of ash exhauster that can reduce ash discharge pollution and hand labor intensity.
Summary of the invention
The utility model often causes ash discharge pollution and the big technical problem of personnel labor intensity for solving ash discharge method commonly used at present, and a kind of CFBB that negative pressure is inhaled apparatus for ash automatically that is provided with is provided.
The utility model is to adopt following technical scheme to realize: a kind ofly be provided with the CFBB that negative pressure is inhaled apparatus for ash automatically, comprise being provided with the CFBB that material returning device and lower sides have the water dust scrubber of dust inlet; Comprise that also a negative pressure inhales apparatus for ash automatically; Described negative pressure is inhaled the boiler returning charge ash pipe that apparatus for ash comprises that an end and material returning device ash-removing mouth are tightly connected automatically; Also comprise an air-introduced machine; The other end of boiler returning charge ash pipe and the dust inlet on the water dust scrubber sidewall are tightly connected; Described air-introduced machine is arranged on the water dust scrubber sidewall position relative with dust inlet; The air inlet of air-introduced machine is relative with dust inlet, and the air outlet of air-introduced machine is positioned at the water dust scrubber outside.
When material returning device is put ash, open air-introduced machine, the negative pressure that the air-flow of air-introduced machine produces sucks the returning charge ash in the water dust scrubber through boiler returning charge ash pipe, and after separating through the water dust scrubber flue gas, the returning charge ash is discharged from water dust scrubber through dust-exhausting port.
The utility model is inhaled apparatus for ash automatically by negative pressure moves the returning charge ash in closed system, reduced air pollution, has solved the problem of returning charge ash transportation difficulty, and has improved employee's operating environment, has reduced staff labor intensity; Employee's job safety performance is improved, and has avoided the pollution to environment.
Description of drawings
Fig. 1 the utility model structural representation.
The 1-material returning device, 2-water dust scrubber, 3-dust inlet, 4-boiler returning charge ash pipe, 5-air-introduced machine, 6-plate, 7-dedusting pipeline, 8-dedusting pond.
The specific embodiment
A kind ofly be provided with the CFBB that negative pressure is inhaled apparatus for ash automatically, comprise being provided with the CFBB that material returning device 1 and lower sides have the water dust scrubber 2 of dust inlet 3; Comprise that also a negative pressure inhales apparatus for ash automatically; Described negative pressure is inhaled the boiler returning charge ash pipe 4 that apparatus for ash comprises that an end and material returning device 1 ash-removing mouth are tightly connected automatically; Also comprise an air-introduced machine 5; Dust inlet 3 on the other end of boiler returning charge ash pipe 4 and water dust scrubber 2 sidewalls is tightly connected; Described air-introduced machine 5 is arranged on the relative position of water dust scrubber 2 sidewalls and dust inlet 3; The air inlet of air-introduced machine 5 is relative with dust inlet 3, and the air outlet of air-introduced machine 5 is positioned at water dust scrubber 2 outsides.
Described boiler returning charge ash pipe 4 is provided with plate 6 near the position of water dust scrubber 2 dust inlets 3.Plate peace 6 is contained on the boiler returning charge ash pipe 4, can control the break-make of boiler returning charge ash pipe 4 and the flow of returning charge ash, can control the amount that the returning charge ash enters water dust scrubber like this.
The evaporation capacity of described CFBB is smaller or equal to 15t/h.
Fig. 1 is structural representation of the present utility model, and material returning device 1 is positioned at boiler body below, the boiler body part signal of only drawing.
Claims (3)
1. one kind is provided with the CFBB that negative pressure is inhaled apparatus for ash automatically, comprises being provided with the CFBB that material returning device (1) and lower sides have the water dust scrubber (2) of dust inlet (3); It is characterized in that, comprise that also a negative pressure inhales apparatus for ash automatically; Described negative pressure is inhaled the boiler returning charge ash pipe (4) that apparatus for ash comprises that an end and material returning device (1) ash-removing mouth are tightly connected automatically; Also comprise an air-introduced machine (5); Dust inlet (3) on the other end of boiler returning charge ash pipe (4) and water dust scrubber (2) sidewall is tightly connected; Described air-introduced machine (5) is arranged on water dust scrubber (2) the sidewall position relative with dust inlet (3); The air inlet of air-introduced machine (5) is relative with dust inlet (3), and the air outlet of air-introduced machine (5) is positioned at water dust scrubber (2) outside.
2. as claimed in claim 1ly be provided with the CFBB that negative pressure is inhaled apparatus for ash automatically, it is characterized in that described boiler returning charge ash pipe (4) is provided with plate (6) near the position of water dust scrubber (2) dust inlet (3).
3. as claimed in claim 1 or 2ly be provided with the CFBB that negative pressure is inhaled apparatus for ash automatically, it is characterized in that the evaporation capacity of described CFBB is smaller or equal to 15t/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219025 CN203215666U (en) | 2013-04-26 | 2013-04-26 | Circulating fluidized bed boiler with automatic negative-pressure ash suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219025 CN203215666U (en) | 2013-04-26 | 2013-04-26 | Circulating fluidized bed boiler with automatic negative-pressure ash suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203215666U true CN203215666U (en) | 2013-09-25 |
Family
ID=49205195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320219025 Expired - Lifetime CN203215666U (en) | 2013-04-26 | 2013-04-26 | Circulating fluidized bed boiler with automatic negative-pressure ash suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203215666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457411A (en) * | 2020-04-23 | 2020-07-28 | 杭州富阳林长发科技有限公司 | Energy-saving stove used outdoors and capable of efficiently burning |
-
2013
- 2013-04-26 CN CN 201320219025 patent/CN203215666U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457411A (en) * | 2020-04-23 | 2020-07-28 | 杭州富阳林长发科技有限公司 | Energy-saving stove used outdoors and capable of efficiently burning |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |