CN206897056U - The dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray - Google Patents
The dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray Download PDFInfo
- Publication number
- CN206897056U CN206897056U CN201720590699.0U CN201720590699U CN206897056U CN 206897056 U CN206897056 U CN 206897056U CN 201720590699 U CN201720590699 U CN 201720590699U CN 206897056 U CN206897056 U CN 206897056U
- Authority
- CN
- China
- Prior art keywords
- pulse valve
- filter core
- dust arrester
- arteries
- time difference
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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 - Fee Related
Links
- 239000000428 dust Substances 0.000 title claims abstract description 36
- 210000001367 artery Anatomy 0.000 title claims abstract description 18
- 210000003462 vein Anatomy 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 title claims abstract description 11
- 239000007921 spray Substances 0.000 title claims abstract description 10
- 238000004140 cleaning Methods 0.000 title claims abstract description 7
- 239000004071 soot Substances 0.000 title claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray, top pulse valve and bottom pulse valve are provided with outside dust arrester, top pulse valve and bottom pulse valve are all connected with pulse control instrument, and the air inlet of top pulse valve and bottom pulse valve is connected with gas bag, top jet nozzle is installed on the top of dust arrester inner filter core, and bottom nozzle is installed on the bottom of dust arrester inner filter core.Vertical air-flow is converted to and the deashing that filter core is radially blown is acted on by the utility model by the collision enforcement of two-way blast pass, by controlling the startup time difference of top pulse valve and bottom pulse valve, realize the maximum pressure ringing of blast pass in each position of filter core.Simple in construction, deashing is efficient, can solve local " dead band " dirt cake residue problem existing for overlength filter core.
Description
Technical field
Dust-filtering purification techniques field is the utility model is related to, is particularly suitable for use in and is jetted through filtering for collaboration of two-way time difference arteries and veins
Dust arrester, more particularly to a kind of dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray.
Background technology
Filtering type dedusting technology traps the efficiency high of dust, is widely used in electric power, steel, cement, mine, paper pulp etc.
Industrial process.With accumulation of the dust on filter core, the running resistance of dust pelletizing system can increase, and now need to adhering on filter core
Dust carry out deashing processing.Present widely used pulse jet technology, for its technique with simple in construction, ash-removal effect is good, surely
Qualitative height.However, pulse jetting deashing be present, i.e., deashing when each position of filter cylinder injection intensity for being subject to it is unbalanced,
Cause filter core portion ash-removal effect bad, local " dead band " residue dust cake occur.Especially for overlength filter bag, the arteries and veins of point type
Gaseous blast produces the deashing effect to differ greatly, the more aobvious protrusion of residual dust problem of non-uniform along on filter bag length direction.
Utility model content
In view of the deficiency of prior art, the utility model provides the dust removal by filtration device deashing system of two-way time difference collaboration arteries and veins spray
System, can effectively remove the dust gathered on filter core, can especially solve deashing problem of non-uniform existing for overlength filter bag.
The utility model realizes above-mentioned purpose using following technical scheme.A kind of dust removal by filtration of two-way time difference collaboration arteries and veins spray
The filter core set in device soot cleaning system, including dust arrester and dust arrester, the dust arrester are provided with top arteries and veins outside
Valve and bottom pulse valve are rushed, top pulse valve and bottom pulse valve are all connected with pulse control instrument, and top pulse valve and bottom arteries and veins
The air inlet for rushing valve is connected with gas bag, and the gas outlet of top pulse valve is connected with injection tube, the outlet connection of upper injection tube
There is top jet nozzle, and top jet nozzle is installed on the top of dust arrester inner filter core；The gas outlet connection of bottom pulse valve is lower to be blown
Pipe, the outlet of lower injection tube are connected with bottom nozzle, and bottom nozzle is installed on the bottom of dust arrester inner filter core；Top jet nozzle and
The spout of bottom nozzle is towards in filter core, and on filter core axial line.
The beneficial effects of the utility model：Using two-way blast pass to collision, forcing will be parallel with filter core vertical
Blast pass conversion is acted on the deashing that cartridge type filter core is radially blown, and effectively strengthens ash-removal effect；By controlling top and bottom
Startup time difference is blown, realizes the cyclically-varying of two-way blast pass position of collision so that maximum pressure caused by blast pass
Ringing in each position of filter core, effectively avoid after deashing filter core locally a large amount of residual dusts the problem of.
Brief description of the drawings
Fig. 1 is the overall structure diagram of one embodiment of the present utility model.
In figure：1. dust arrester, 2. top jet nozzles, injection tube on 3., 4. top pulse valves, 5. pulse control instruments, 6. gas
Bag, 7. bottom pulse valves, 8. filter cores, 9. bottom nozzles, 10. times injection tubes.
Embodiment
In conjunction with drawings and examples, the utility model is described in further detail.Referring to Fig. 1, a kind of two-way time difference collaboration arteries and veins
The filter core 8 set in the dust removal by filtration device soot cleaning system of spray, including dust arrester 1 and dust arrester 1, the dust arrester
Top pulse valve 4 is provided with outside 1 and bottom pulse valve 7, top pulse valve 4 and bottom pulse valve 7 are all connected with pulse control instrument 5,
And the air inlet of top pulse valve 4 and bottom pulse valve 7 is connected with gas bag 6, the gas outlet of top pulse valve 4 is connected with spray
Blowpipe 3, the outlet of upper injection tube 3 is connected with top jet nozzle 2, and top jet nozzle 2 is installed on the top of the inner filter core 8 of dust arrester 1；
The lower injection tube 10 of gas outlet connection of bottom pulse valve 7, the outlet of lower injection tube 10 are connected with bottom nozzle 9, and bottom nozzle 9 is pacified
Bottom loaded on the inner filter core 8 of dust arrester 1；The spout of top jet nozzle 2 and bottom nozzle 9 is towards in filter core 8, and in filter core
On 8 axial lines.
Ash removal method of the present utility model：Include the injection of n subpulses to the deashing of filter core 8, during ith deashing, top arteries and veins
Rushing valve 4 and bottom pulse valve 7 has startup time difference ti,
ti=[h-s/2-s × (i-1)]/v-t0；
In formula：H is filter core height, and s is to be blown effective range parameter, t0For pipe internal offset, v is that filter core interior air-flow is put down
Equal speed, i are the positive integer no more than n；
Pipe internal offset t0It is calculated as connecting the upper injection tube 3 of top jet nozzle 2 and the △ of lower injection tube 10 of bottom nozzle 9 respectively
L and pipe interior air-flow average speed v0Ratio, i.e. t0=△ l/v0；
N be calculated as the height h of filter core 8 and effective range parameter s ratio and round after plus 1, i.e. n=int (h/s)+
1,
Wherein：Int is bracket function；
△ t are calculated as being blown the effective range parameter s and interior air-flow average speed v of filter core 8 ratio, i.e. △ t=s/
v。
Effective range parameter s 0.2~1.0m of value, pipe interior air-flow average speed v0300~600m/s of value, filter core
8 50~250m/s of interior air-flow average speed v values.
Embodiment：Filter core length h is 6.2m, connects injection tube (3) branch of top jet nozzle (2) and bottom nozzle (9) respectively
The length difference △ l of pipe are 2m, and s takes 1.0m, v0500m/s, v is taken to take 100m/s, then t0=△ l/v0=0.004s, n=int
(6.2/1.0)+1=7 times.
So, when carrying out a wheel deashing, cooperateed with altogether comprising seven top pulse valves 4 and bottom pulse valve 7 by a timing difference
Start：
1st subpulse is blown, the ratio of the bottom pulse valve 7 top start-up study t of pulse valve 41=[h-s/2-s × (1-1)]/v-
t0=[6.2-1.0/2-1.0 × (1-1)]/100-0.004=0.053s.So top jet nozzle exit flow is actual sprays than bottom
Blowing gas stream shifts to an earlier date [6.2-1.0/2]/100=0.057s and reached, namely when bottom blast pass is at nozzle, top injection
The distance that air-flow has been passed by is 0.057 × v=5.7m, and arteries and veins gaseous blast caused by top is by the distance from bottom bottommost of filter core
6.2-5.7=0.5m place collides with arteries and veins gaseous blast caused by bottom.Because injection effective range is 1.0m, then filter
Up 1.0m scopes obtain effective deashing effect to the bottommost of core 8.
2nd subpulse is blown, and the ratio top start-up study t=0.043s of pulse valve 4 of bottom pulse valve 7, top jet nozzle 2 exports
Air-flow is actual to shift to an earlier date [6.2-1.0/2]/100=0.047s arrival than bottom blast pass, and bottom blast pass appears in nozzle
During place, the distance that top blast pass has been passed by is 0.047 × v=4.7m, and arteries and veins gaseous blast caused by top is by filter core 8
At distance from bottom bottommost 6.2-4.7=1.5m with bottom caused by arteries and veins gaseous blast collide.So the bottommost of filter core 8 is up
Second 1.0m scope obtains effective deashing effect.
3rd subpulse is blown, and the ratio top start-up study t=0.009s of pulse valve 4 of bottom pulse valve 7, filter core bottom is up
3rd 1.0m scope obtains effective deashing effect.
The 4th pulse jet, the ratio of the bottom pulse valve 7 top start-up study t=0.009s of pulse valve 4, the bottom of filter core 8 is up
4th 1.0m scope obtains effective deashing effect.
The 5th pulse jet, the ratio of the bottom pulse valve 7 top start-up study t=0.009s of pulse valve 4, the bottom of filter core 8 is up
5th 1.0m scope obtains effective deashing effect.
6th subpulse is blown, and the ratio top start-up study t=0.009s of pulse valve 4 of bottom pulse valve 7, the bottom of filter core 8 is up
6th 1.0m scope obtains effective deashing effect.
7th subpulse is blown, the ratio of bottom pulse valve 7 top the start-up study t=0.009s of pulse valve 4, the top 0.2m of filter core 8
Scope obtains effective deashing effect, and remaining 0.8m air pulses effect is located at the top of filter core 8, acted on without deashing.
In deashing process, top and bottom air pulse collides, and forces the vertical injection gas parallel with filter core 8
The deashing effect being radially blown to cartridge type filter core 8 is changed in circulation, will significantly increase deashing effect.Meanwhile position of collision is successively from filter
The bottom of core 8 is moved to top, collides caused injection maximum pressure, pulse jet is sequentially generated to the bottom of filter core 8 to top,
Deashing effect of the filter core 8 without dead angle is realized, can effectively avoid deashing problem of non-uniform existing for long filter core 8.
In next round deashing process, the two-way time difference cooperating type pulse jet work in last round of top and bottom is repeated, is realized
Maximum pressure ringing caused by blast pass effectively avoids the local a large amount of residuals of filter core 8 after deashing in 8 each position of filter core
The problem of dust.
Claims (1)
1. the dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray, including dust arrester（1）And dust arrester（1）It is interior
The filter core of setting（8）, it is characterised in that the dust arrester（1）It is outer to be provided with top pulse valve（4）With bottom pulse valve（7）,
Top pulse valve（4）With bottom pulse valve（7）It is all connected with pulse control instrument（5）, and top pulse valve（4）With bottom pulse valve
（7）Air inlet and gas bag（6）Connection, top pulse valve（4）Gas outlet be connected with injection tube（3）, upper injection tube（3）
Outlet be connected with top jet nozzle（2）, and top jet nozzle（2）It is installed on dust arrester（1）Inner filter core（8）Top；Bottom arteries and veins
Rush valve（7）The lower injection tube of gas outlet connection（10）, lower injection tube（10）Outlet be connected with bottom nozzle（9）, bottom nozzle
（9）It is installed on dust arrester（1）Inner filter core（8）Bottom；Top jet nozzle（2）And bottom nozzle（9）Spout towards filter core
（8）It is interior, and in filter core（8）On axial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720590699.0U CN206897056U (en) | 2017-05-25 | 2017-05-25 | The dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720590699.0U CN206897056U (en) | 2017-05-25 | 2017-05-25 | The dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206897056U true CN206897056U (en) | 2018-01-19 |
Family
ID=61289676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720590699.0U Expired - Fee Related CN206897056U (en) | 2017-05-25 | 2017-05-25 | The dust removal by filtration device soot cleaning system of two-way time difference collaboration arteries and veins spray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206897056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096333A (en) * | 2017-05-25 | 2017-08-29 | 南昌大学 | The dust removal by filtration device soot cleaning system and its method of two-way time difference collaboration arteries and veins spray |
| CN112915675A (en) * | 2021-01-21 | 2021-06-08 | 南昌大学 | Impact-preventing pulse-jet ash removal filter drum dust removal device |
-
2017
- 2017-05-25 CN CN201720590699.0U patent/CN206897056U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096333A (en) * | 2017-05-25 | 2017-08-29 | 南昌大学 | The dust removal by filtration device soot cleaning system and its method of two-way time difference collaboration arteries and veins spray |
| CN112915675A (en) * | 2021-01-21 | 2021-06-08 | 南昌大学 | Impact-preventing pulse-jet ash removal filter drum dust removal device |
| CN112915675B (en) * | 2021-01-21 | 2024-05-07 | 南昌大学 | Blocking collision type pulse spraying ash cleaning filter cartridge dust removal device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 |