CN2202210Y - Dust-removing draught fan for boiler - Google Patents
Dust-removing draught fan for boiler Download PDFInfo
- Publication number
- CN2202210Y CN2202210Y CN 93203602 CN93203602U CN2202210Y CN 2202210 Y CN2202210 Y CN 2202210Y CN 93203602 CN93203602 CN 93203602 CN 93203602 U CN93203602 U CN 93203602U CN 2202210 Y CN2202210 Y CN 2202210Y
- Authority
- CN
- China
- Prior art keywords
- dust
- flue gas
- impeller
- control
- centrifugal force
- Prior art date
- 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 - Fee Related
Links
- 239000000428 dust Substances 0.000 claims abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 19
- 239000003546 flue gas Substances 0.000 claims description 19
- 238000010410 dusting Methods 0.000 claims description 10
- 230000001939 inductive effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 239000003500 flue dust Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A boiler dust removal induced draft fan belongs to the technical field of induced draft and dust removal. The utility model provides a mechanical equipment that both had dust removal function and had induced air function replaces the induced air dust removal method that adds the dust shaker with the draught fan in the prior art at present, and its volume only is one fifth of current induced air dust removal technology, and dust collection efficiency can reach more than 95%, improves 25% than prior art. The implementation of the technology can solve the problem that the boiler emits black smoke, and plays a positive role in environmental protection.
Description
The utility model belongs to air inducing and dedusting technology field.
At present, from known boiler air inducing dedusting technology be to realize with the way that induced draught fan adds dusting machine.Flue gas after the boiler burning and dust are extracted out with induced draught fan earlier, and then carry out dedusting through dusting machine, enter atmosphere at last.The shortcoming of this technology is: (1) floor space is big, and it will install induced draught fan and dusting machine respectively, and present dusting machine volume is huge, and floor space is big, and it is more that the induced draught fan dust pelletizing system is taken up an area of, and increased capital investment; (2) dust removal efficiency is low, because of the dust removal mechanism of this system is: flue gas that boiler is discharged and dust are through induced draught fan, obtain to enter dusting machine behind the energy, then in dusting machine, carry out separating of flue gas and dust by centrifugal force, because system pipeline is long, energy loss is big, and the centrifugal force of generation is less, has only the bigger dust of those quality to remove with dusting machine, the less dust of quality then can not be removed, along with flue gas enters atmosphere, this dust pelletizing system dust removal efficiency generally has only 70%, therefore, environmental pollution at present is still more serious, and the problem of chimney over-emitting black exhaust is unresolved.
The purpose of this utility model provides a kind of machinery, and the air inducing dedusting is combined as a whole, and this equipment not only has the function of dedusting but also have the function of air inducing, and, air inducing after the first dedusting, dust removal efficiency can reach more than 95%, and the volume of equipment is less.Enforcement of the present utility model with solving the problem of chimney over-emitting black exhaust, plays a protective role to environment.
The purpose of this utility model is achieved in that in the circular housing of being made by steel plate, the rotary blade of band taper is housed, the impeller back is provided with the control of dust ring of taper, the bucket that gathers dust is housed below the control of dust ring, and the shell two ends are respectively equipped with radial air inlet mouth and tangent exhaust outlet, contain the flue gas of dust, enter the impeller of high speed rotating from the radial port suction port, obtain energy, produce centrifugal force, because the quality of dust in flue gas is more much bigger than the quality of flue gas.Like this, the centrifugal force that dust produces is bigger tens times than the centrifugal force that flue gas produces, and dust flies to garden dimension shape control of dust ring under action of centrifugal force, enter the bucket that gathers dust through the control of dust ring, and flue gas is then crossed the control of dust ring and entered tangent exhaust outlet.Like this, dust in flue gas is separated with flue gas, and dust collection gets up, and flue gas is drawn outside the machine, reaches the purpose of dedusting air inducing.
Because adopt such scheme, the volume of this dedusting induced draught fan greatly reduces, it be present air inducing add the dedusting technology volume 1/5th, and dust removal efficiency can reach more than 95%, has improved 25% than present prior art, and simple in structure, installation and maintenance are convenient.
Below in conjunction with accompanying drawing the utility model is further specified:
As shown in the figure: motor (1) is by shaft coupling (2), bearing support (3), main shaft (10), impeller (5) is rotated in shell (6) high speed, the flue gas that contains dust in the boiler enters impeller (5) from suction port (4), in impeller, obtain energy, produce centrifugal force, because the centrifugal force that dust produces is big, under action of centrifugal force, dust flies to control of dust ring (7), enter the bucket (9) that gathers dust, and flue gas is little because of centrifugal force, can cross control of dust ring (7), enter tangent exhaust outlet (8), draw outside the machine, entire work process is all carried out under motor drives continuously, frame (11) is used for supporting all parts, makes the boiler dusting induced draught fan constitute an integral body.
Claims (4)
1, the function of a kind of machinery with dedusting has the function of air inducing again, is called the boiler dusting induced draught fan; It is characterized in that: in the circular housing of making by steel plate (6), be equipped with and be with conical rotary blade (5), be provided with conical control of dust ring (7) behind the impeller, the bucket (9) that gathers dust is housed below the control of dust ring, the flue gas that contains dust is from radial air inlet mouth (4), enter in the impeller (5) of high speed rotating, obtain energy, produce centrifugal force, because the centrifugal force that dust produces in the flue gas is big, under action of centrifugal force, fly to control of dust ring (7), enter in the bucket (9) that gathers dust, and flue gas is little because of centrifugal force, can cross control of dust ring (7), enter tangent exhaust outlet (8), draw outside the machine, dust in flue gas is separated with flue gas, realize dedusting air inducing, dedusting air inducing is combined as a whole.
2, according to right 1 described boiler dusting induced draught fan, it is characterized in that: impeller (5) is conical, and control of dust ring (7) also is conical, and impeller is preceding, the control of dust ring after, between keep certain distance.
3, according to right 1 described boiler induced-draft fan, it is characterized in that: the impeller section of garden shape shell (6) will be done coning, and tapering is identical with the impeller tapering.
4, according to right 1 described boiler induced-draft fan, it is characterized in that: all parts all are fixed on the frame (11), form an independent integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93203602 CN2202210Y (en) | 1993-02-15 | 1993-02-15 | Dust-removing draught fan for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93203602 CN2202210Y (en) | 1993-02-15 | 1993-02-15 | Dust-removing draught fan for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2202210Y true CN2202210Y (en) | 1995-06-28 |
Family
ID=33787422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93203602 Expired - Fee Related CN2202210Y (en) | 1993-02-15 | 1993-02-15 | Dust-removing draught fan for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2202210Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585824A (en) * | 2013-11-06 | 2014-02-19 | 江苏华盛天龙光电设备股份有限公司 | Centrifugal filter for oxide dust in crystal growing furnace |
| CN107115724A (en) * | 2016-02-25 | 2017-09-01 | 上海三久机械有限公司 | The dust air exhausting device of drying machine |
-
1993
- 1993-02-15 CN CN 93203602 patent/CN2202210Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585824A (en) * | 2013-11-06 | 2014-02-19 | 江苏华盛天龙光电设备股份有限公司 | Centrifugal filter for oxide dust in crystal growing furnace |
| CN103585824B (en) * | 2013-11-06 | 2015-09-09 | 江苏华盛天龙光电设备股份有限公司 | A kind of crystal growing furnace oxide powder dust centrifugal type filter |
| CN107115724A (en) * | 2016-02-25 | 2017-09-01 | 上海三久机械有限公司 | The dust air exhausting device of drying machine |
| CN107115724B (en) * | 2016-02-25 | 2020-01-31 | 上海三久机械有限公司 | Dust collecting and air exhausting device of dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |