CN207430852U - A kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device - Google Patents
A kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device Download PDFInfo
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- CN207430852U CN207430852U CN201721305478.0U CN201721305478U CN207430852U CN 207430852 U CN207430852 U CN 207430852U CN 201721305478 U CN201721305478 U CN 201721305478U CN 207430852 U CN207430852 U CN 207430852U
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- blowing pipe
- reaction tower
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Abstract
The utility model is related to a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing devices, including pulse blowing pipe (3), pulse valve (5) and gas bag (6), pulse blowing pipe (3) wherein is disposed with inside bottom of towe horizontal flue (1), disposed outside has pulse valve (5) and gas bag (6) in the horizontal flue (1)；The port of export of the arrival end connection pulse valve (5) of pulse blowing pipe (3), the arrival end of pulse valve (5) is connected with gas bag (6), compressed air is flowed into pulse blowing pipe (3) by gas bag (6) and pulse valve (5), so as to carry out pulse jet to reaction tower bottom of towe straight section dust stratification, powerful blowing force is generated using pulse of compressed air injection, the smaller dust for falling into bottom of towe straight section is raised and reenters ciculation fluidized system, and the larger particles fallen into are purged in bottom of towe cone bucket, it solves fluid bed to collapse the situation that bottom of towe horizontal segment flue under an accident condition may block.
Description
Technical field
The utility model is related to a kind of reaction tower bottom of towe straight section dust stratification pulse automatic block clearing devices.Applied to recirculating fluidized bed
Dry desulfurization denitration field.
Background technology
Flue gas circulating fluidized bed dry desulfurization denitration technology is a kind of low-temperature flue gas desulfurizing and denitrifying process.The technique has
It is excellent that denitrification efficiency is high, investment operating cost is low, reliability is high, floor space is small, generated without waste water, by-product is disposable etc.
Point.The technology has tended to be ripe and has had the irreplaceable advantage of other techniques, and the market demand progressively expands.
The key reaction place of circulating fluidized bed dry desulphurization denitration is reaction tower.Flue gas enters tower by lower inlet section
It is interior, by entering tower body principal piece after the expansion of tower lower part and cloth wind section, and mixed with the absorbent of addition and technique atomized water, after
Continuous reaction, finally flows out from tower upper outlet section.Subsequent flue gas enters bag filter, the Desulphurization trapped through deduster
It is sent back to through air flume in tower and continues to participate in reaction.
At present during dry flue gas desulphurization, it is very universal that absorbing tower bottom falls ash, especially bulky grain in absorption tower
It drops in the bottom of towe the phenomenon that than more serious, usually processing is by horizontal segment to this section of corner setting of vertical section at absorbing tower bottom
Multiple rows of scavenging conduit, regular purge.This mode does not prevent accident condition from staying bed ash and being stacked on bottom of towe straight section, thus can not
The situation of removing.Therefore, it should a kind of new technical solution be provided and solved the above problems.
Utility model content
The purpose of this utility model is that in view of the above problems, provide a kind of the anti-of mitigation bottom of towe deashing workload
Tower bottom of towe straight section dust stratification pulse jet automatic block clearing device is answered, solves the easily a large amount of dust stratifications of bottom of towe, manually outer row's difficulty skill
Art problem, so as to enhance the reliability of the stable operation of entire desulphurization denitration dust pelletizing system.
The utility model is related to a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device, including pulse jet
Pipe, pulse valve and gas bag, wherein pulse blowing pipe is disposed with inside the horizontal flue of reaction tower bottom of towe air channel structure, described
Horizontal flue disposed outside has pulse valve and gas bag；The port of export of the arrival end connection pulse valve of pulse blowing pipe, pulse valve
Arrival end is connected with gas bag, and compressed air is flowed into pulse blowing pipe by gas bag and pulse valve, so as to straight to reaction tower bottom of towe
Section dust stratification carries out pulse jet.
Wherein, reaction tower bottom of towe air channel structure further includes cone bucket, and one end of bottom of towe horizontal flue is connected with cone bucket.
Wherein, pulse blowing pipe is preferably 4 rows to be multiple rows of, is provided with multiple on every pulse blowing pipe, is preferably 14
Nozzle, compressed air are sprayed from the nozzle of pulse blowing pipe.
Wherein, compressed air enters pulse blowing pipe through pulse valve control in gas bag, is sprayed from nozzle, will fall into bottom of towe
The smaller dust of horizontal flue raises the ciculation fluidized system that reenters, and the larger particles fallen into are purged in cone bucket.
It is preferred that being provided with screw(-type) feeder in cone bucket lower part, the larger particles screw(-type) feeder being purged in cone bucket is rejected to reaction tower
Outside.
Wherein, described device further includes articulation, connection short tube, injection pipe fitting, and pulse valve passes through articulation, connects successively
Connect short tube, injection pipe fitting is connected with pulse blowing pipe.
Wherein, injection tube is fixed on bottom of towe horizontal flue by bearing, and bearing preferably includes channel steel bearing and angle seat.
Wherein, pulse jet tube hub is 50-500mm with a distance from flue bottom plate, is preferably 100-300, is preferably again
150mm, the nozzle of pulse blowing pipe are tiltedly set downward, are 5-10 degree preferably with horizontal direction angle.
Wherein, pressure transmitter is provided on bottom of towe horizontal flue, the startup of pulse valve uses start by set date mechanism, and same
When according to the pressure value of the pressure transmitter carry out feedback control.
Wherein, which is characterized in that the compressed air in gas bag is blown every time only for a pulse blowing pipe.
Wherein, interface is provided on gas bag, is connected with compressed air inlet.
In addition, a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device, bottom of towe air channel structure includes level
Straight section and cone bucket section, and in bottom of towe horizontal flue interior parallel multiple rows of pulse blowing pipe is arranged in airflow direction and outside flue
The gas bag in portion and perpendicular type pulse valve.Powerful blowing force is generated using pulse of compressed air injection, the smaller of bottom of towe straight section will be fallen into
Dust raise the ciculation fluidized system that reenters, and the larger particles fallen into are purged in bottom of towe cone bucket.By under cone bucket
Portion's screw(-type) feeder is rejected to outside tower.
The beneficial effects of the utility model are：The utility model controls compressed air to bottom of towe straight section flue by pulse valve
Bottom is blown, and efficiently solves the problems, such as bottom of towe straight section dust stratification, and passes through automatic blowing, and it is hardened to prevent that dust from occurring in bottom of towe
The disastrous effects such as blocking.Design is reasonable, improves deashing ability, reduces bottom of towe deashing workload, and enhance system stable operation can
By property.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
Fig. 1 is the utility model blockage-clearing device structure diagram (bleed pipe and nozzle in display flue).
Fig. 2 is the A-A of Fig. 1 to structure diagram.
Fig. 3 is the B of Fig. 1 to structure diagram.
Fig. 4 is the sectional view of pulse blowing pipe 3.
Sequence number in figure：1st, horizontal flue；2nd, cone bucket；3rd, pulse blowing pipe；4th, nozzle；5th, pulse valve；6th, gas bag；7th, loose joint
First 7；8th, short tube is connected；9th, it is blown pipe fitting；10th, channel steel bearing；11st, angle seat；V, bottom of towe air passage airflow direction；W, compress
Air intlet
Specific embodiment
As shown in Figs 1-4, a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device, reaction tower bottom of towe air passage
Structure includes bottom of towe horizontal flue 1 and cone bucket 2.One end of bottom of towe horizontal flue 1 is connected with cone bucket 2.Described device includes pulse
Injection tube 3, pulse valve 5 and gas bag 6, wherein pulse blowing pipe 3 is disposed with inside bottom of towe horizontal flue 1, in the horizontal cigarette
1 disposed outside of road has pulse valve 5 and gas bag 6；The port of export of the arrival end connection pulse valve 5 of pulse blowing pipe 3, pulse valve 5
Arrival end is connected with gas bag 6, and compressed air is flowed into pulse blowing pipe 3 by gas bag 6 and pulse valve 5, so as to reaction tower tower
Bottom straight section dust stratification carries out pulse jet.
As Figure 2-3, pulse blowing pipe 3 is preferably 4 rows to be multiple rows of, be provided on every pulse blowing pipe 3 it is multiple,
Preferably 14 nozzles 4, compressed air are sprayed from the nozzle 4 of pulse blowing pipe 3.The pressure value of compressed air is in gas bag 6
0.4-0.6MPa is provided with interface on gas bag 6, is connected with compressed air inlet W.Compressed air is controlled through pulse valve 5 in gas bag 6
System enters pulse blowing pipe 3, is sprayed from nozzle 4, the smaller dust for falling into bottom of towe horizontal flue 1 is raised to reenter and is followed
Ring fluidization system, and the larger particles fallen into are purged in cone bucket 2.2 lower part of cone bucket is provided with screw(-type) feeder, is purged to
Larger particles screw(-type) feeder in cone bucket 2 is rejected to outside reaction tower.Described device further includes articulation 7, connection short tube 8, spray
Blowpipe connector 9, pulse valve 5 are connected successively by articulation 7, connection short tube 8, injection pipe fitting 9 with pulse blowing pipe 3.Injection
Pipe 3 is fixed to by U-bolt on channel steel bearing 10 by 5 one end of pulse valve, and injection tube is fixed to angle steel by other end bolt
On bearing 11.
As shown in figure 4, pulse blowing pipe (3) center is 50-500mm from flue bottom plate distance H, it is preferably 100-300, then
Suboptimum elects 150mm as.The nozzle 4 of pulse blowing pipe 3 is tiltedly set downward, is 5-10 degree preferably with horizontal direction angle α.To prevent
Fluid bed collapses after ash floods nozzle in the case of bed and flows into injection tube and blocks in tower.
Pressure transmitter is provided on bottom of towe horizontal flue 1, the startup of pulse valve 5 uses start by set date mechanism, and simultaneously
Feedback control is carried out according to the pressure value of the pressure transmitter.Pulse valve 5 is preferably perpendicular type pulse blowing valve 5.In gas bag 6
Compressed air be blown every time only for a pulse blowing pipe 3.
Non- stifled grey state, which is divided into, puts an injection time interval, is spaced between being blown at this time longer.If reaction tower entrance cigarette
Road pressure drastically raises, then opens bottom of towe spiral ash discharger immediately, and from ash discharging hole near-end outside from bottom of towe to distally successively every one
Xun Huan of fixing time is blown.It is shorter that time interval is blown at this time.Before reaction tower gas approach pressure value is restored to stifled ash, then stop
Spiral ash discharger, and the time interval for being spaced and being restored under non-stifled grey state will be blown.
Claims (13)
1. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device, which is characterized in that including pulse blowing pipe
(3), pulse valve (5) and gas bag (6), wherein being disposed with pulse spray inside the horizontal flue (1) of reaction tower bottom of towe air channel structure
Blowpipe (3), in the horizontal flue (1), disposed outside has pulse valve (5) and gas bag (6)；The arrival end of pulse blowing pipe (3) connects
The port of export of pulse valve (5) is connect, the arrival end of pulse valve (5) is connected with gas bag (6), and compressed air passes through gas bag (6) and pulse
Valve (5) is flowed into pulse blowing pipe (3), so as to carry out pulse jet to reaction tower bottom of towe straight section dust stratification.
2. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1, feature exist
In reaction tower bottom of towe air channel structure further includes cone bucket (2), and one end of bottom of towe horizontal flue (1) is connected with cone bucket (2).
3. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to one of claim 1-2,
Be characterized in that, pulse blowing pipe (3) is provided with multiple nozzles (4) to be multiple rows of on every pulse blowing pipe (3), compressed air from
The nozzle (4) of pulse blowing pipe (3) sprays.
4. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 2, feature exist
In gas bag (6) interior compressed air enters pulse blowing pipe (3) through pulse valve (5) control, is sprayed from nozzle (4), will fall into tower
The smaller dust of bottom horizontal flue (1) raises the ciculation fluidized system that reenters, and the larger particles fallen into are purged to cone
It struggles against in (2).
5. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1 or 2, feature
It is, described device further includes articulation (7), connection short tube (8), injection pipe fitting (9), and pulse valve (5) passes through loose joint successively
Head (7), connection short tube (8), injection pipe fitting (9) are connected with pulse blowing pipe (3).
6. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1 or 2, feature
It is, pulse blowing pipe (3) is fixed on bottom of towe horizontal flue (1) by bearing, and bearing includes channel steel bearing (10) and angle steel branch
Seat (11).
7. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1 or 2, feature
It is, pulse blowing pipe (3) center is 50-500mm with a distance from flue bottom plate, and tiltedly court divides into the nozzle (4) of pulse blowing pipe (3)
It puts.
8. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1 or 2, feature
It is, pressure transmitter is provided on bottom of towe horizontal flue (1), and the startup of pulse valve (5) uses start by set date mechanism, and simultaneously
Feedback control is carried out according to the pressure value of the pressure transmitter.
9. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1 or 2, feature
It is, the compressed air in gas bag (6) is blown every time only for a pulse blowing pipe (3).
10. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 1 or 2, special
Sign is that the pressure value of gas bag (6) interior compressed air is 0.4-0.6MPa, and gas bag is provided with interface on (6), with compressed air
Import connects.
11. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 3, feature exist
In pulse blowing pipe (3) is 4 rows, and 14 nozzles (4) are provided on every pulse blowing pipe (3).
12. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 4, feature exist
In being provided with screw(-type) feeder in cone bucket (2) lower part, the larger particles screw(-type) feeder being purged in cone bucket (2) is rejected to instead
It answers outside tower.
13. a kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device according to claim 7, feature exist
In pulse blowing pipe (3) center is 100-300mm with a distance from flue bottom plate, and tiltedly court divides into the nozzle (4) of pulse blowing pipe (3)
It puts, is 5-10 degree with horizontal direction angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721305478.0U CN207430852U (en) | 2017-10-11 | 2017-10-11 | A kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721305478.0U CN207430852U (en) | 2017-10-11 | 2017-10-11 | A kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device |
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| Publication Number | Publication Date |
|---|---|
| CN207430852U true CN207430852U (en) | 2018-06-01 |
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ID=62295707
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| CN201721305478.0U Active CN207430852U (en) | 2017-10-11 | 2017-10-11 | A kind of reaction tower bottom of towe straight section dust stratification pulse jet automatic block clearing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395542A (en) * | 2018-12-20 | 2019-03-01 | 福建龙净脱硫脱硝工程有限公司 | The absorption tower CFB and its ash exhauster |
| CN111408266A (en) * | 2020-04-22 | 2020-07-14 | 北京清新环境技术股份有限公司 | Be applicable to high temperature high dirt flue gas SCR denitration with blowing ash system |
| CN111408267A (en) * | 2020-04-22 | 2020-07-14 | 北京清新环境技术股份有限公司 | Soot blower suitable for SCR denitration of high-temperature and high-dust flue gas |
| CN111603890A (en) * | 2019-02-26 | 2020-09-01 | 中国石化工程建设有限公司 | Adsorption tower for preventing dust deposition in air chamber and method for treating flue gas by using adsorption tower |
| CN112077084A (en) * | 2020-07-17 | 2020-12-15 | 中国科学院微电子研究所 | Dust removal pipeline and diffusion equipment |
| CN113680185A (en) * | 2020-05-18 | 2021-11-23 | 中冶宝钢技术服务有限公司 | Ash falling dredging and circulating device for semi-dry desulfurization absorption tower |
-
2017
- 2017-10-11 CN CN201721305478.0U patent/CN207430852U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395542A (en) * | 2018-12-20 | 2019-03-01 | 福建龙净脱硫脱硝工程有限公司 | The absorption tower CFB and its ash exhauster |
| CN111603890A (en) * | 2019-02-26 | 2020-09-01 | 中国石化工程建设有限公司 | Adsorption tower for preventing dust deposition in air chamber and method for treating flue gas by using adsorption tower |
| CN111603890B (en) * | 2019-02-26 | 2022-06-17 | 中国石化工程建设有限公司 | Adsorption tower for preventing dust deposition in air chamber and method for treating flue gas by using adsorption tower |
| CN111408266A (en) * | 2020-04-22 | 2020-07-14 | 北京清新环境技术股份有限公司 | Be applicable to high temperature high dirt flue gas SCR denitration with blowing ash system |
| CN111408267A (en) * | 2020-04-22 | 2020-07-14 | 北京清新环境技术股份有限公司 | Soot blower suitable for SCR denitration of high-temperature and high-dust flue gas |
| CN113680185A (en) * | 2020-05-18 | 2021-11-23 | 中冶宝钢技术服务有限公司 | Ash falling dredging and circulating device for semi-dry desulfurization absorption tower |
| CN112077084A (en) * | 2020-07-17 | 2020-12-15 | 中国科学院微电子研究所 | Dust removal pipeline and diffusion equipment |
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