CN107335297A - A kind of compact pulse backblowing cleaning ash filter - Google Patents
A kind of compact pulse backblowing cleaning ash filter Download PDFInfo
- Publication number
- CN107335297A CN107335297A CN201710730627.6A CN201710730627A CN107335297A CN 107335297 A CN107335297 A CN 107335297A CN 201710730627 A CN201710730627 A CN 201710730627A CN 107335297 A CN107335297 A CN 107335297A
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- Prior art keywords
- blowback
- filter
- tube
- discharge
- filter core
- Prior art date
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- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 238000010926 purge Methods 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000013517 stratification Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 33
- 239000002956 ash Substances 0.000 description 10
- 238000001914 filtration Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/02—Non-permanent measures for connecting different parts of the filter
- B01D2265/029—Special screwing connections, threaded sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/06—Details of supporting structures for filtering material, e.g. cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
- B01D2267/30—Same type of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
- B01D2267/70—Horizontal arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
Abstract
A kind of compact pulse backblowing cleaning ash filter, including filter housings, filter head housings body sidewall lower section are provided with gas feed, gas vent are provided with above side wall；Tube sheet is provided with filter head housings body, multiple filter cores are fixed on tube sheet by nut；An entirety is connected into by Turbogrid plates between multiple filter core lower ends, blowback guiding tube is set above each filter core；Back-blowing device is provided with above blowback guiding tube, back-blowing device includes discharge, the pulse valve being arranged on discharge, the injection tube corresponding with blowback guiding tube number of positions being arranged on below discharge, according to filter core sum, several injection tubes corresponding to filter core are divided into one group, one discharge of every group of setting；Filter core, blowback guiding tube and injection tube are arranged concentrically；During starting impulse deashing, purge gas carries out blowback by discharge and injection tube to blowback guiding tube and filter core；Ash-removal effect of the present invention is good, and purge gas consumption is small；It can ensure that filter element is not easy to be damaged during reverse gas cleaning.
Description
Technical field
The invention belongs to the energy, chemical field, and in particular to a kind of compact pulse backblowing cleaning ash filter.
Background technology
In recent years, as China's Development of Coal Chemical Industry is rapid, high-temperature gas-solid isolation technics is widely used in pressurization of dry pulverized coal gas
Change technical field.High using dry method dust filter efficiency, going out battery limit (BL) synthesis gas dust content can control in 1mg/Nm completely3With
Under, prevent synthesis gas band water band ash and caused downstream to block up tower, destroy the problems such as catalyst, dust removal process does not produce waste water, simultaneously
Dry ash is advantageous to solid waste comprehensive utilization as cement building material etc..
Cleaning ash filter is mainly used in process gas dust removal by filtration and exhaust gas filter dedusting etc..HTHP fly-ash filter is
The nucleus equipment of dry-dedusting system.The ceramic element or the design longevity of sintering metal filter core that HTHP fly-ash filter uses
Life generally 8000 hours, the leakage of ceramic filter element will cause whole gasification installation to stop.Blowback is clear in running
It is the principal element for causing filter element longevity too short that ash, which does not cause thoroughly dedusting pressure drop higher for a long time,.On existing engineering construction
Some filter cores are typically divided into one group, every group of filter core sets a guiding tube to carry out reverse gas cleaning.It is poor according to running during operation
Pressure sets blowback cycle starting impulse valve deashing.Patent 201210177784.6 and patent 201520178410.7 propose respectively
Tubaeform injector back-blowing device and Venturi injector fixing device.These methods are from blowback injection method, fixation
Structure optimization etc. improves the reliability of device.But due to the higher dedusting brought greatly with filtration velocity of dust load
The problems such as pressure drop is high, deashing is frequent, deashing is not thorough can not overcome completely.Meanwhile blowback is grouped to filter core, with group inner filter core arteries and veins
Qi of chong channel ascending adversely intensity of flow difference is larger, and blowback effect difference is larger；For ease of packet, blank is larger between each group, causes apparatus casing
It is huge.The discharge filters such as lock hopper exhaust, air lift exhaust in addition to high temp/pressure filter, in dry-dedusting system also be present.This
A little filters are generally intermittent duty, and filter takes blowback air-flow purge mode, and blowback nitrogen consumption is big, ash-removal effect compared with
It is weak.Because pressure release exhaust at initial stage peak volume is big, solid content is high, easily causes filtering differential pressure height to cause Filter Core Failure.For in solution
Problem is stated, it is a very significant task to develop a kind of highly efficient durable compact pulse backblowing deashing filter.
The content of the invention
The shortcomings that in order to overcome above-mentioned prior art, it is an object of the invention to provide a kind of compact pulse backblowing deashing
Filter, ash-removal effect is good, and purge gas consumption is small；It can ensure that filter element is not easy to be damaged during reverse gas cleaning
It is bad, stifled ash is not easy between filter element and is built bridge.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of compact pulse backblowing cleaning ash filter, including filter housings 1, the side wall of filter housings 1 lower section are set
There is gas feed 9, gas vent 10 is provided with above side wall；Tube sheet 2 is provided with filter housings 1, multiple filter cores 3 pass through spiral shell
Mother 14 is fixed on tube sheet 2, is sealed between filter core 3 and tube sheet 2 by pad 13, avoids dusty gas from filter core 3 and tube sheet 2
The clean gas side of the top of tube sheet 2 is sealed in gap；An entirety is connected into by Turbogrid plates 12 between multiple lower ends of filter core 3, is managed
Fixed between plate 2 and Turbogrid plates 12 by some lacing wires 11, each top of filter core 3 sets blowback guiding tube 7；Blowback guiding tube 7
Top is provided with back-blowing device, and back-blowing device includes discharge 5, the pulse valve 8 being arranged on discharge 5, is arranged on discharge 5
The injection tube 6 corresponding with the number of positions of blowback guiding tube 7 of lower section, according to the sum of filter core 3, by several sprays corresponding to filter core 3
Blowpipe 6 is divided into one group, one discharge 5 of every group of setting；The filter core 3, blowback guiding tube 7 and injection tube 6 are arranged concentrically；Start
During pulse dust cleaning, purge gas carries out blowback by discharge 5 and injection tube 6 to blowback guiding tube 7 and filter core 3.
The described material of filter core 3 is sintering ceramics or sintering metal.
The lower bands internal thread of blowback guiding tube 7, use and be threadedly coupled with filter core 3, and sealed by sealing gasket 13.
The blowback guiding tube 7 uses venturi tube structure, and diffusion segment length is accelerate segment length 2~10 times.
Reinforcing plate 16 and sleeve pipe 15 are provided between the discharge 5 and injection tube 6, is adopted between discharge 5 and reinforcing plate 16
It is fixedly connected with welding manner, injection tube 6 is used with sleeve pipe 15 and is threadedly coupled, injection tube 6 and the connection screw thread length of sleeve pipe 15
It is adjustable, according to aerodynamics condition is calculated, adjust the distance between injection tube 6 and blowback guiding tube 7 under different operating modes.
The structure of injection tube 6 is contracting noz(zle) or Venturi nozzle.
The discharge 5 is grouped according to the sum of filter element 3, is at least divided into 1 group.
Fixed between the discharge 5 and tube sheet 2 by supporting plate 4, connected, be easy to using flange between each section of discharge 5
Installation is dismantled with maintenance.
The pulse width of the pulse valve 8 uses commutator pulse blowback or fixed difference in 100ms~1000ms, blowback pattern
Press pulse backblowing.
The upside narrow width of Turbogrid plates 12, roof structure should be used when width is larger, to prevent dust stratification from building bridge.
Compared to the prior art compared with the present invention possesses following advantage：
1st, the every filter core of this filter configures a guiding tube, and an injection tube is set above each guiding tube.Filter core,
Guiding tube, injection tube are concentric in vertical direction.Injection tube is connected by screw thread with discharge, and several injection tubes are divided into one group,
One discharge of every group of setting, discharge are connected with pulse valve.So compact arrangement considerably reduces apparatus casing
Size.
2nd, this filter is in reverse gas cleaning, starting impulse valve, and purge gas enters discharge, then after being accelerated by injection tube
The pulse backblowing air-flow of one higher speed high pressure is produced, when this strand of air-flow enters guiding tube, will be formed in guiding tube inlet
One negative pressuren zone, an external suction thus is provided to the dusty gas of entrance area, inhaled so as to produce volume, make ash-laden gas
The throat that body enters guiding tube with blowback air continues to accelerate, then enters filter core inner surface after diffusion, is then situated between through filtering
Matter, one stronger blowback impulse force is produced to filter cake, and then filter cake is departed from filter media surface under momentum effect, it is final real
Existing reverse gas cleaning regeneration.The dusty gas of guiding tube inlet is thus greatly make use of, increases the tolerance of blowback air, meanwhile,
By accelerating twice, ash-removal effect of the blowback air to filter core greatly strengthen.
3rd, the distance between the injection tube of this filter and guiding tube can stretch so that equipment can be under different operating modes
Pulsatile effect is optimal.Every filter core bottom is fixed by Turbogrid plates, and all filter cores are connected to become into an entirety, flase floor upside
Width should be as far as possible narrow, and roof structure should be used when width is larger, to prevent dust stratification crane span structure between filter element.Turbogrid plates and pipe
Some lacing wires are set between plate, some supports are set between tube sheet and discharge, such a fixed support structure can ensure that filtering element
Part can sustain the high speed impact of blowback air in blowback, and be not easy to be damaged.
Brief description of the drawings
Fig. 1 is " a kind of highly efficient durable compact pulse backblowing cleaning ash filter " structural representation of the invention.
Fig. 2 is the partial structural diagram between the tube sheet 2, filter core 3, guiding tube 7 of the present invention.
Fig. 3 is the partial structural diagram between the discharge 5 of the present invention and injection tube 6.
Fig. 4 is the partial schematic diagram that blowback air volume inhales diffusion between the injection tube 6 of the present invention and guiding tube 7.
Fig. 5 is the structural representation of flase floor 12 of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is further described.
Skilled in the art realises that the description below is not limiting the scope of the invention.It is any in base of the present invention
The improvement and change made on plinth are all within protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of compact pulse backblowing cleaning ash filter of the present invention, including filter housings 1, mistake
Gas feed 9 is provided with below the side wall of filter shell 1, gas vent 10 is provided with above side wall, dusty gas enters from gas
Mouth 9 enters, and is discharged from gas vent 10；Tube sheet 2 is provided with filter housings 1, multiple filter cores 3 are fixed on tube sheet by nut 14
On 2, sealed between filter core 3 and tube sheet 2 by pad 13, avoid dusty gas from sealing in tube sheet from the gap of filter core 3 and tube sheet 2
The clean gas side of 2 tops；Connect into an entirety by Turbogrid plates 12 between multiple lower ends of filter core 3, tube sheet 2 and Turbogrid plates 12 it
Between fixed by some lacing wires 11, the top of each filter core 3 sets blowback guiding tube 7；The top of blowback guiding tube 7 is provided with blowback dress
Put, back-blowing device includes discharge 5, the pulse valve 8 being arranged on discharge 5, is arranged on being guided with blowback for the lower section of discharge 5
Injection tube 6 corresponding to the number of positions of pipe 7, according to the sum of filter core 3, several injection tubes 6 corresponding to filter core 3 are divided into one group, often
Group sets a discharge 5；The filter core 3, blowback guiding tube 7 and injection tube 6 are arranged concentrically；During starting impulse deashing, blowback
Gas carries out blowback by discharge 5 and injection tube 6 to blowback guiding tube 7 and filter core 3.
As the preferred embodiment of the present invention, the described material of filter core 3 is sintering ceramics or sintering metal.
As the preferred embodiment of the present invention, the lower bands internal thread of blowback guiding tube 7, screw thread is used with filter core 3
Connection, and sealed by sealing gasket 13.
As the preferred embodiment of the present invention, the blowback guiding tube 7 uses venturi tube structure, and diffusion segment length is
Accelerate 2~10 times of segment length.
As shown in figure 3, as the preferred embodiment of the present invention, reinforcing plate is provided between the discharge 5 and injection tube 6
16 and sleeve pipe 15, it is fixedly connected between discharge 5 and reinforcing plate 16 using welding manner, injection tube 6 uses screw thread with sleeve pipe 15
Connection, injection tube 6 and the connection screw thread adjustable length of sleeve pipe 15, according to aerodynamics condition is calculated, adjust under different operating modes
The distance between injection tube 6 and blowback guiding tube 7.
As the preferred embodiment of the present invention, the structure of injection tube 6 is contracting noz(zle) or Venturi nozzle.
As the preferred embodiment of the present invention, the discharge 5 is grouped according to the sum of filter element 3, at least
It is divided into 1 group.
As the preferred embodiment of the present invention, fixed between the discharge 5 and tube sheet 2 by supporting plate 4, discharge 5
Connected between each section using flange, be easily installed and dismantled with maintenance.
As the preferred embodiment of the present invention, the pulse width of the pulse valve 8 is in 100ms~1000ms, blowback mould
Formula is using commutator pulse blowback or fixed differential pressure pulse backblowing.
As shown in figure 5, as the preferred embodiment of the present invention, the upside width of Turbogrid plates 12 should be as far as possible narrow, works as width
Roof structure should be used when spending larger, to prevent dust stratification from building bridge.
The present invention operation principle be：Dusty gas enters the ash-laden gas side of the lower section of tube sheet 2 from gas feed 9, passes through
Fly ash granule is filtered out during filter core 3, and downstream is gone in clean gas side of the clean gas after filtering above tube sheet 2.Filter core 3 is in mistake
The filter cake that journey is formed is filtered, air-flow can be caused gradually to increase by caused pressure drop, when pressure difference reaches certain value, is just needed
Reverse gas cleaning is carried out to filter, as shown in figure 4, during starting impulse deashing, purge gas passes through discharge 5 and injection tube 6
Blowback is carried out to blowback guiding tube 7 and filter core 3.
Claims (10)
- A kind of 1. compact pulse backblowing cleaning ash filter, it is characterised in that：Including filter housings (1), filter housings (1) Gas feed (9) is provided with below side wall, gas vent (10) is provided with above side wall；Pipe is provided with filter housings (1) Plate (2), multiple filter cores (3) are fixed on tube sheet (2) by nut (14), pass through pad (13) between filter core (3) and tube sheet (2) Sealing, dusty gas is avoided to seal in the clean gas side above tube sheet (2) from the gap of filter core (3) and tube sheet (2)；Multiple filters An entirety is connected into by Turbogrid plates (12) between core (3) lower end, by some lacing wires between tube sheet (2) and Turbogrid plates (12) (11) it is fixed, blowback guiding tube (7) is set above each filter core (3)；Back-blowing device is provided with above blowback guiding tube (7), instead Blowing apparatus include discharge (5), be arranged on discharge (5) pulse valve (8), be arranged on below discharge (5) and blowback Injection tube (6) corresponding to guiding tube (7) number of positions, according to filter core (3) sum, by several injection tubes corresponding to filter core (3) (6) it is divided into one group, one discharge (5) of every group of setting；The filter core (3), blowback guiding tube (7) and injection tube (6) are set with one heart Put；During starting impulse deashing, purge gas is entered by discharge (5) and injection tube (6) to blowback guiding tube (7) and filter core (3) Row blowback.
- A kind of 2. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：Described filter core (3) material is sintering ceramics or sintering metal.
- A kind of 3. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The blowback guiding (7) lower bands internal thread is managed, uses and is threadedly coupled with filter core (3), and passes through sealing gasket (13) and seals.
- A kind of 4. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The blowback guiding Pipe (7) uses venturi tube structure, and diffusion segment length is accelerate segment length 2~10 times.
- A kind of 5. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The discharge (5) reinforcing plate (16) and sleeve pipe (15) are provided between injection tube (6), using welding between discharge (5) and reinforcing plate (16) Mode is fixedly connected, and injection tube (6) with sleeve pipe (15) using being threadedly coupled, grow by injection tube (6) and the connection screw thread of sleeve pipe (15) Spend it is adjustable, according to aerodynamics condition is calculated, adjust under different operating modes between injection tube (6) and blowback guiding tube (7) away from From.
- A kind of 6. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：Injection tube (6) is tied Structure is contracting noz(zle) or Venturi nozzle.
- A kind of 7. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The discharge (5) it is grouped according to filter element (3) sum, is at least divided into 1 group.
- A kind of 8. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The discharge (5) it is fixed by supporting plate (4) between tube sheet (2), connected between each section of discharge (5) using flange, be easily installed and overhaul Dismounting.
- A kind of 9. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The pulse valve (8) for pulse width in 100ms~1000ms, blowback pattern uses commutator pulse blowback or fixed differential pressure pulse backblowing.
- A kind of 10. compact pulse backblowing cleaning ash filter according to claim 1, it is characterised in that：The Turbogrid plates (12) upside narrow width, roof structure should be used when width is larger, to prevent dust stratification from building bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730627.6A CN107335297A (en) | 2017-08-23 | 2017-08-23 | A kind of compact pulse backblowing cleaning ash filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730627.6A CN107335297A (en) | 2017-08-23 | 2017-08-23 | A kind of compact pulse backblowing cleaning ash filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107335297A true CN107335297A (en) | 2017-11-10 |
Family
ID=60215563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710730627.6A Pending CN107335297A (en) | 2017-08-23 | 2017-08-23 | A kind of compact pulse backblowing cleaning ash filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107335297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248506A (en) * | 2018-11-15 | 2019-01-22 | 中国石油大学(北京) | Manifold-type pulse backblowing ash-clearing structure and the filter for using the ash-clearing structure |
| CN109264409A (en) * | 2018-11-02 | 2019-01-25 | 长沙开元仪器有限公司 | A kind of vacuum feeder |
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Application publication date: 20171110 |