CN105727648B - Pulse backblowing deashing device and its gas ejector, filter device - Google Patents
Pulse backblowing deashing device and its gas ejector, filter device Download PDFInfo
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- CN105727648B CN105727648B CN201610223590.3A CN201610223590A CN105727648B CN 105727648 B CN105727648 B CN 105727648B CN 201610223590 A CN201610223590 A CN 201610223590A CN 105727648 B CN105727648 B CN 105727648B
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- Prior art keywords
- gas ejector
- gas
- filter
- pulse backblowing
- chimney filter
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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
- B01D46/66—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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention provides a kind of pulse backblowing deashing device and its gas ejector, filter devices.The pulse backblowing deashing device and the gas ejector of filter device application include injector ontology, the injector ontology includes the inlet portion, neck and the bow portion that are connected with each other successively, height on the longitudinal section of the inlet portion, neck and bow portion becomes larger again from large to small successively, and the gas ejector is laterally set relative to the chimney filter of filter device.By the shape and its set-up mode in pulse backblowing deashing device of improving gas ejector, chimney filter corresponding with gas ejector can be made to be obtained for more uniform blowback, improve the air flow method situation for blowing into gas ejector so that chimney filter with having obtained uniform and complete deashing.Such one is that can reduce reverse gas cleaning pressure, reduces the vibrations of chimney filter, reduces the risk of thermal shock and fatigue fracture；Second is that can build bridge to avoid the dust layer between chimney filter, chimney filter failure is avoided.
Description
Technical field
The invention belongs to gas solid separation technical field, it is related to a kind of filter device, the arteries and veins in especially a kind of filter device
Rush back-blowing dust removing device and its gas ejector.
Background technology
As air quality deteriorates increasingly, develop and more and more closed for the filtrate of high-temp waste gas filtering emission
Note.In recent years, the hot industry exhaust gas largely discharged causes atmospheric environment serious pollution, " air quality ", " haze ",
Topics such as " PM2.5 " are brought rapidly up, and become the hot issue of global concern.
In the industries such as chemical industry, oil, metallurgy, electric power, high-temperature dusty gas is often generated.Since these different techniques all need
It recovers energy and reaches environmental emission standard, therefore these high-temperature dusty gas need to be dusted, so as to high-temperature dust removal
The research and development and optimization of technology are of crucial importance.Gas cleaning at high temperature refers to directly carry out gas solid separation under the high temperature conditions, realizes gas
One technology of body purification.
The rigid hots filter element such as sintering metal chimney filter and ceramic screen pipe has good anti-seismic performance, high temperature resistant, resistance to
Corrosion and thermal shock resistance properties, while there is higher filtering accuracy and filter efficiency, therefore, it is net to be widely used in high-temperature gas
Change field.Pulse backblowing purge mode is the regenerated important channel of performance cycle for realizing filter element, and pulse backblowing deashing fills
The deashing property put determines that can high-temperature gas filter run steadily in the long term.
The filter of existing commercial Application and its structure of pulse backblowing deashing device are as shown in Figure 1, the pulse of filter
Back-blowing dust removing device is mainly by purge gas storage tank 809, pulse backblowing valve 808, blowback pipeline 807, nozzle 806 and injector
804 compositions.The inner space sealed separation of filter is clean gas side and ash-laden gas side by the tube sheet 803 of filter.One
A filter element is made of more chimney filters 802, and more chimney filters 802 share a gas ejector.
In filter shown in Fig. 1, dusty gas is entered by gas access 801 and is discharged by gas vent 805.Dust-laden
After gas enters the dusty gas chamber of filter, each chimney filter 802 is reached under the action of the gas push power of high temperature and pressure,
Multiple chimney filters 802 share an injector 804, and the outer surface that the dust particle in air-flow is intercepted at chimney filter 802 forms powder
Cake layer, gas enter subsequent technique by the porous channel of chimney filter 802.With the progress of filter operation, 802 outer surface of chimney filter
Muffin layer progressive additive causes the pressure drop of filter to increase, and at this moment needs to realize the property of chimney filter 802 by the way of pulse backblowing
Can regeneration, during pulse backblowing deashing, the pulse backblowing valve 808 in normally off is opened, the opening/closing time of pulse backblowing valve 808
It is very short, belong to transient process, the high pressure nitrogen or Clean synthesis gas moment in purge gas storage tank 809 enter blowback pipeline 807
In, then by injector 804, a large amount of gas one can be introduced from clean gas chamber under the ejector action of injector 804
With the inside for entering injector 804, purge gas passes through the inner wall of chimney filter 802, using the energy of transient state by 802 outer surface of chimney filter
Dust layer peel off so that the resistance of chimney filter 802 essentially returns to original state, it is achieved thereby that the quality rebuilding of chimney filter.
The dust of stripping is fallen into the ash bucket below chimney filter, is periodically removed.
In pulse backblowing deashing device, blowback air-flow needs to overcome the flowing of the operating pressure of filter and filtered airflow
Resistance, blowback flowed energy cannot be all applied on chimney filter.Also, in the case where sharing an injector, blowback air-flow
The chimney filter at injector center is often concentrated on, is not thorough so that the chimney filter deashing in injector is uneven.Chimney filter deashing
Uneven be not thorough can lead to problems with：
First, it is past in practical operation for the chimney filter in marginal position inside injector is made also to obtain effectively deashing
Toward the reverse gas cleaning pressure needed more than twice or so of filter operation pressure, in the case where high temperature and pressure operates operating mode, high blowback is clear
Grey pressure can make chimney filter be severely affected power, this be easy to cause chimney filter vibration in the process, and reverse gas cleaning pressure is higher, filter
The vibrations of pipe are more violent, and this high pressure deashing operation be easy to cause chimney filter and causes damaged even fracture due to Thermal shock testing.
In addition, during pulse backblowing, after entering chimney filter due to the raw transient energy of blowback air miscarriage, in the opening along chimney filter
During the blind end progress energy transmission for holding terminad, blowback air-flow is constantly let out from the porous channel gap of chimney filter
Leakage so that energy constantly dissipates during transmission, cause chimney filter lower part and top ash-removal effect it is widely different, attachment
It is not easy to be removed by blowback air-flow in the dust layer of chimney filter lower surface, incomplete deashing phenomenon occurs, cause the dust between chimney filter
Layer frame bridge be easy to cause chimney filter failure.
The present inventor relies on experience and the practice for being engaged in relevant industries for many years as a result, proposes that a kind of pulse of filter is anti-
Blowing-out apparatus for ash and its gas ejector, the defects of to overcome the prior art.
Invention content
In view of this, the purpose of the present invention is to provide a kind of pulse backblowing deashing device and its gas ejector, filterings
Device can realize the uniform and complete deashing of chimney filter.
In order to achieve the above object, technical solution proposed by the present invention is：
On the one hand, the embodiment provides a kind of gas ejector of pulse backblowing deashing device, including drawing
Emitter ontology, the injector ontology include the inlet portion, neck and the bow portion that are connected with each other successively, the inlet portion, neck and
Height on the longitudinal section in bow portion becomes larger again from large to small successively, and bow portion upper end is arc；Injector ontology three or more it is defeated
Outlet is arranged on the bottom end in bow portion, and each delivery outlet corresponds to an external filtration cartridge inlet.
In the gas ejector provided in said program, the height on the longitudinal section in the bow portion is maximum.
Practical in use, the cross section of the injector ontology can be fan-shaped, the gas ejector of multiple sectors
Circular gas ejector can be spliced to form.
On the other hand, it is described including blowback air accumulator the embodiment provides a kind of pulse backblowing deashing device
Blowback air accumulator is connected with blowback pipeline, and the anti-blowpipe road is equipped with nozzle, and the nozzle connects gas ejector, the gas
Body injector includes injector ontology, and the injector ontology includes the inlet portion, neck and the bow portion that are connected with each other successively, described
Height on the longitudinal section of inlet portion, neck and bow portion becomes larger again from large to small successively, and bow portion upper end is arc, and the gas
Injector is laterally set relative to the chimney filter of filter device, and the delivery outlet of injector ontology three or more is arranged on the bottom in bow portion
End, each delivery outlet correspond to an external filtration cartridge inlet.
In the pulse backblowing deashing device provided in said program, the height on the longitudinal section in the bow portion is maximum.
It is practical in use, the injector ontology fan-shaped cross section, the gas ejector of multiple sectors can
It is spliced to form circular gas ejector.
One pulse backblowing deashing device can use six fan-shaped gas ejectors, the gas of this six sectors
Injector can be spliced to form a circular gas emitter.
In the structure of pulse ash remover, each fan-shaped gas ejector corresponds to a nozzle, multiple nozzles
A corresponding blowback pipeline.
Also, each fan-shaped gas ejector corresponds to multiple chimney filters.
Another aspect, the embodiment provides a kind of filter device, including tube sheet, the tube sheet is by the filtering
The space of device is divided into clean gas chamber and dusty gas chamber, and filter is equipped on the tube sheet of dusty gas chamber side
Pipe is equipped with the pulse backblowing deashing dress as described in any of the above-described technical solution on the tube sheet of clean gas chamber side
It puts.
In conclusion the present invention every technical solution all employ novel gas ejector, the injector include into
Oral area, neck and bow portion, the height on the longitudinal section of the inlet portion, neck and bow portion become larger again from large to small successively, and
By the gas ejector use during pulse backblowing deashing device and filter device, gas ejector is filled relative to filtering
The chimney filter put laterally is set, i.e. the bottom surface of gas ejector is the tube sheet of filter device.Thus it is possible, on the one hand, from inlet portion to
Neck, from large to small, the out-of-date neck reduced in longitudinal section of gas stream is formed than inlet portion pressure for the longitudinal section of gas ejector
Low low-pressure area, this is conducive to improve feed rate and air inflow；On the other hand, air accumulator is played in the bow portion of gas ejector
Effect, can buffer purge gas, the air-flow being reflected on bow portion wall surface can blow into chimney filter from top to down.By improving gas
The shape of body injector and its set-up mode in pulse backblowing deashing device, can make blowback air stream no longer concentrate on center
Position, but chimney filter corresponding with gas ejector is made to be obtained for more uniform blowback, it improves and blows into gas ejector
Air flow method situation, reduces divergence loss, improves the energy transfer efficiency of gas ejector so that chimney filter has obtained uniform and complete
Ground deashing.Such one is that can reduce reverse gas cleaning pressure, reduces the vibrations of chimney filter, reduces thermal shock and fatigue fracture
Risk；Second is that can build bridge to avoid the dust layer between chimney filter, chimney filter failure is avoided.For another level, also just extend
The service life of chimney filter, and then ensured the reliability of filter device operation.
Description of the drawings
Fig. 1 is the structure diagram of existing filter and its pulse backblowing deashing device；
Fig. 2 a, 2b, 2c be the schematic elevation view of gas ejector structure provided in an embodiment of the present invention, schematic top plan view and
Left view schematic diagram；
Fig. 3 is the structure of filter device and its pulse backblowing deashing device with the gas ejector shown in Fig. 2 a-2c
Schematic diagram；
Fig. 4 is the distribution schematic diagram of chimney filter on tube sheet shown in Fig. 3.
Specific embodiment
In order to which the technical features, objects and effects to the present invention are more clearly understood, referring now to attached drawing specifically
The specific embodiment of the bright present invention.
Fig. 2 a, 2b and 2c are a kind of gas ejector of pulse backblowing deashing device provided in an embodiment of the present invention.The gas
Body injector includes injector ontology, and the injector ontology includes the inlet portion 21, neck 22 and the bow portion that are connected with each other successively
23, wherein height h1, h2 and h3 on the longitudinal section of inlet portion 21, neck 22 and bow portion 23 becomes larger again from large to small successively, bow
Portion upper end is arc；The delivery outlet of injector ontology three or more is arranged on the bottom end in bow portion, and each delivery outlet is corresponded to outside one
Portion's filtration cartridge inlet.
In this way, from inlet portion 21 to neck 22, from large to small, gas stream is out-of-date in longitudinal section for the longitudinal section of gas ejector
The neck 22 of reduction forms the low-pressure area lower than 21 pressure of inlet portion, this is conducive to improve feed rate and air inflow.By gas
After body injector is laterally provided as the tube sheet of filter device, air accumulator is played the role of in bow portion 23, can buffer blowback air
Body, the air-flow being reflected on bow portion wall surface can blow into chimney filter from top to down.By improve gas ejector shape and its
Set-up mode in pulse backblowing deashing device can make blowback air stream no longer concentrate on center, but make and gas
The corresponding chimney filter of injector is obtained for more uniform blowback, improves the air flow method situation for blowing into gas ejector, reduces
Divergence loss improves the energy transfer efficiency of gas ejector so that chimney filter with having obtained uniform and complete deashing.Such one be can
To reduce reverse gas cleaning pressure, reduce the vibrations of chimney filter, reduce the risk of thermal shock and fatigue fracture；Second is that can be to avoid
Dust layer between chimney filter is built bridge, and avoids chimney filter failure.
In the gas ejector provided in above-described embodiment, the height h3 on the longitudinal section in the bow portion 23 is maximum, in this way
Bow portion 23 can be made preferably to play the role of air accumulator, so that air-flow is made preferably to flow into chimney filter from top to bottom.
Practical in use, the injector ontology can be various shapes.For example, the cross section of injector ontology
(vertical view shown in Fig. 2 b substantially can be considered its cross-sectional view) can be circle.But it is convenient for installation settings and
From the effect of reverse gas cleaning, the cross section of injector ontology is preferably set as fan-shaped, the gas ejector formed in this way
In three-dimensional shape similar to wooden dipper shape, the gas ejector of multiple sector can just be spliced to form circular gas injection
Device.About the quantity of fan-shaped gas ejector, can be specifically chosen according to actual conditions.
The present invention also provides the embodiments of a kind of filter device and its pulse backblowing deashing device.As shown in figure 3, this hair
Bright filter device includes tube sheet 3, and filter device sealed separation is the clean gas chamber on top and the dust-laden of lower part by tube sheet 3
Gas chamber is equipped with gas access 1 in dusty gas chamber, gas vent 5 is equipped in clean gas chamber.As shown in figure 4, pipe
Plate 3 is divided into six regions by sector, but is not limited to six, and in other implementations, quantity can be according to need
It is configured, such as five, eight, chimney filter 2 is equipped on each sector region, chimney filter 2 can be ceramic screen pipe or porous
Sintering metal chimney filter, chimney filter 2 are located in dusty gas chamber, and bottom is equipped with ash bucket 9.Pulse backblowing deashing device was arranged on
The top of device is filtered, i.e., in the clean gas chamber above tube sheet 3.
Pulse backblowing deashing device includes blowback air accumulator 8, vertically arranged blowback pipeline 7 and gas ejector 4.It is corresponding
In six sector regions on tube sheet 3, on tube sheet 3 laterally setting (laterally setting, relative to chimney filter 2 it is longitudinally disposed for,
It is horizontally disposed i.e. shown in Fig. 3) six fan-shaped gas ejectors 4 (three-dimensional shape of injector is wooden dipper shape), multiple filters
Pipe 2 shares a gas ejector 4, and corresponding each gas ejector 4, the blowback pipeline 7 of connection blowback air accumulator 8 is in tube sheet 3
Top be split into six nozzles, each nozzle is arranged on the inlet portion of gas ejector 4, and is both provided with one on each nozzle
A corresponding pulse backblowing valve 6；Wherein, the delivery outlet of injector ontology three or more is arranged on the bottom end in bow portion, each to export
Corresponding one external filtration cartridge inlet of mouth, bow portion upper end is arc.
Dusty gas is entered by the gas access 1 of filter device in dusty gas chamber, in the effect of gas push power
Lower arrival chimney filter 2, the dust particle in air-flow are intercepted at the outer surface of chimney filter 2 and form muffin layer, and gas passes through chimney filter 2
Porous channel filtering after enter clean gas chamber, be discharged into subsequent technique through gas vent 5.With filter operation into
Row, the muffin layer progressive additive of 2 outer surface of chimney filter cause the pressure drop of filter device to increase, and at this moment need using pulse backblowing
Mode realizes the regeneration of chimney filter performance.During pulse backblowing deashing, the pulse backblowing valve 6 in normally off is opened, pulse backblowing
The time that valve 6 is opened and closed is very short, belongs to transient process, and the high pressure nitrogen or Clean synthesis gas moment in blowback air accumulator 8 enter
In blowback pipeline 7, then by the wooden dipper shape gas ejector 4 laterally set, under the ejector action of gas ejector 4, from clean
Net gas chamber introduces the inside that a large amount of clean gas enters gas ejector 4 together, and purge gas passes through the interior of chimney filter 2
Wall is peeled off the dust layer of 2 outer surface of chimney filter using the energy of transient state so that the resistance of chimney filter 2 essentially returns to initial shape
State, it is achieved thereby that the regeneration of chimney filter performance.The dust of stripping is fallen into ash bucket 9, is periodically removed.
In the present embodiment, pulse backblowing deashing device has used novel gas ejector 4, the injector 4 include into
Oral area 21, neck 22 and bow portion 23, the height on the inlet portion 21, neck 22 and the longitudinal section in bow portion 23 is successively from large to small
Become larger again, and by 4 use of gas ejector during pulse backblowing deashing device and filter device, gas ejector
4 are laterally set relative to chimney filter 2, i.e. the bottom of gas ejector is the tube sheet 3 of filter device.Thus it is possible, on the one hand, from entrance
Portion 21 arrives neck 22, and from large to small, the out-of-date neck 22 reduced in longitudinal section of gas stream forms ratio for the longitudinal section of gas ejector 4
The low low-pressure area of 21 pressure of inlet portion, this is conducive to improve feed rate and air inflow；On the other hand, the bow of gas ejector 4
Air accumulator is played the role of in portion 23, can buffer purge gas, and the air-flow being reflected on bow portion wall surface can be blown from top to down
Into chimney filter 2.By improving the shape and its set-up mode in pulse backblowing deashing device of gas ejector 4, can make anti-
Blowing gas stream no longer concentrates on center, but makes to be obtained for more uniform blowback with 4 corresponding chimney filter 2 of gas ejector,
The air flow method situation for blowing into gas ejector is improved, reduces divergence loss, improves the energy transfer efficiency of gas ejector,
So that chimney filter with having obtained uniform and complete deashing.Such one is that can reduce reverse gas cleaning pressure, reduces the vibrations of chimney filter, drop
The low risk of thermal shock and fatigue fracture；Second is that can build bridge to avoid the dust layer between chimney filter, chimney filter failure is avoided.From another
As soon as level, also extending the service life of chimney filter, and then the reliability of filter device operation is ensured.
In terms of comprehensive, each embodiment provided by the invention has the advantages that：
(1) from inlet portion 21 to neck 22, the longitudinal section of gas ejector 4 is small by changing to greatly, and gas stream is out-of-date in gas
The low-pressure area lower than 21 pressure of inlet portion is formed at the neck 22 that injector longitudinal section reduces, this is conducive to improve draws into gas
The feed rate and air inflow of emitter 4.The bow portion 23 of gas ejector 4 can play the role of air accumulator, improve blowback air
Stream enters air flow method situation during gas ejector 4, reduces divergence loss, overcomes inhomogeneities during pulse backblowing.
And then induction efficiency (gaseous mass of induction efficiency=injection ambient gas quality/nozzle injection) can be improved, improve blowback
Gas gross (gaseous mass of purge gas total amount=injection ambient gas quality+nozzle injection), due to reverse gas cleaning gas
For high pressure low temperature gas, Thermal Stress is easily formed to high temperature chimney filter, the high-temperature gas around injection can improve blowback air
The temperature of body reduces Thermal Stress of the low temperature purge gas to chimney filter.And purge gas pressure is uniformly distributed in injector, it is thorough
Bottom equably removes the filter cake on chimney filter surface, has effectively restored the pressure drop of chimney filter, reduces filter cake bridge formation.
(2) sector region is divided, and each gas ejector 4 is made to correspond to multiple chimney filters 2, is conducive to increase gas ejector
The 4 blowback areas influenced, make blowback uniform in effect, are conducive to industrial application.For the injector 4 being vertically arranged,
Each projection of the injector 4 on tube sheet 3 is circle, due to can not achieve seamless connection during round and circular arrangement,
Therefore it can cause part chimney filter that cannot be covered by injector 4.And the construction and arrangement mode of the gas ejector of the present invention, it can
To arrange chimney filter as much as possible on the tube sheet 3 of filter device.
(3) each gas ejector 4 corresponds to a nozzle, and multiple nozzles correspond to a blowback pipeline 7, simplify arteries and veins
Rush the structure of back-blowing dust removing device.
In conclusion the foregoing is merely a prefered embodiment of the invention, it is not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of gas ejector of pulse backblowing deashing device, which is characterized in that including injector ontology, the injector sheet
Body includes the inlet portion, neck and the bow portion that are connected with each other successively, the height on the longitudinal section of the inlet portion, neck and bow portion according to
Secondary to become larger again from large to small, bow portion upper end is arc；The delivery outlet of injector ontology three or more is arranged on the bottom end in bow portion, often
A delivery outlet corresponds to an external filtration cartridge inlet.
2. the gas ejector of pulse backblowing deashing device according to claim 1, which is characterized in that the bow portion indulges
Height on section is maximum.
3. the gas ejector of pulse backblowing deashing device according to claim 1 or 2, which is characterized in that the injection
Fan-shaped cross section for device ontology, and the gas ejector of multiple sectors can be spliced to form circular gas ejector.
4. a kind of pulse backblowing deashing device, including blowback air accumulator, the blowback air accumulator is connected with blowback pipeline, described anti-
Blowpipe road is equipped with nozzle, and the nozzle connects gas ejector, which is characterized in that the gas ejector includes injector sheet
Body, the injector ontology include the inlet portion, neck and the bow portion that are connected with each other successively, the inlet portion, neck and bow portion
Height on longitudinal section becomes larger again from large to small successively, and bow portion upper end is arc, and the gas ejector is filled relative to filtering
The chimney filter put laterally is set, and the delivery outlet of injector ontology three or more is arranged on the bottom end in bow portion, and each delivery outlet corresponds to one
A external filtration cartridge inlet.
5. pulse backblowing deashing device according to claim 4, which is characterized in that the height on the longitudinal section in the bow portion
It is maximum.
6. pulse backblowing deashing device according to claim 4 or 5, which is characterized in that the injector ontology it is transversal
Face is sector, and the gas ejector of multiple sectors can be spliced to form circular gas ejector.
7. pulse backblowing deashing device according to claim 6, which is characterized in that the gas ejector of six sectors
A circular gas ejector can be spliced to form.
8. pulse backblowing deashing device according to claim 6, which is characterized in that each fan-shaped gas ejector corresponds to
One nozzle, multiple nozzles correspond to a blowback pipeline.
9. pulse backblowing deashing device according to claim 8, which is characterized in that each fan-shaped gas ejector corresponds to
Multiple chimney filters.
10. a kind of filter device, including tube sheet, the tube sheet by the space of the filter device be divided into clean gas chamber and
Dusty gas chamber is equipped with chimney filter, which is characterized in that in clean gas chamber side on the tube sheet of dusty gas chamber side
The tube sheet be equipped with such as claim 4-9 any one of them pulse backblowing deashing devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223590.3A CN105727648B (en) | 2016-04-05 | 2016-04-05 | Pulse backblowing deashing device and its gas ejector, filter device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223590.3A CN105727648B (en) | 2016-04-05 | 2016-04-05 | Pulse backblowing deashing device and its gas ejector, filter device |
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| CN105727648B true CN105727648B (en) | 2018-06-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096334A (en) * | 2017-06-06 | 2017-08-29 | 河南理工大学 | One kind filtering tube sheet and pulse backblowing deashing device |
| CN108525409B (en) * | 2018-06-04 | 2023-04-28 | 中国石油大学(北京) | Method and device for determining and protecting invalid filter tube of filter |
| CN109248506B (en) * | 2018-11-15 | 2024-01-30 | 中国石油大学(北京) | Manifold type pulse back-blowing ash removing structure and filter using ash removing structure |
| CN112973294A (en) * | 2021-02-23 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Device for preventing filter rod of pulverized coal gasification fly ash filtering system from being broken |
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| CN102961934A (en) * | 2012-11-22 | 2013-03-13 | 中国石油大学(北京) | Self-oscillation nozzle and filter pulse jet cleaning ash-removing device with same |
| CN204522540U (en) * | 2015-01-30 | 2015-08-05 | 成都易态科技有限公司 | Gas-filtering device and blowback system thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101170673B1 (en) * | 2010-01-18 | 2012-08-03 | 조선내화 주식회사 | Immersion nozzle for casting and continuous casting apparatus including the same |
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- 2016-04-05 CN CN201610223590.3A patent/CN105727648B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961934A (en) * | 2012-11-22 | 2013-03-13 | 中国石油大学(北京) | Self-oscillation nozzle and filter pulse jet cleaning ash-removing device with same |
| CN204522540U (en) * | 2015-01-30 | 2015-08-05 | 成都易态科技有限公司 | Gas-filtering device and blowback system thereof |
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| CN105727648A (en) | 2016-07-06 |
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