CN105727648A - Pulse back blowing dedusting device and gas ejector and filtering device thereof - Google Patents
Pulse back blowing dedusting device and gas ejector and filtering device thereof Download PDFInfo
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- CN105727648A CN105727648A CN201610223590.3A CN201610223590A CN105727648A CN 105727648 A CN105727648 A CN 105727648A CN 201610223590 A CN201610223590 A CN 201610223590A CN 105727648 A CN105727648 A CN 105727648A
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- Prior art keywords
- gas ejector
- gas
- ejector
- pulse backblowing
- deashing device
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- 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 invention provides a pulse back blowing dedusting device and a gas ejector and filtering device thereof.The gas ejector adopted by the pulse back blowing dedusting device and the filtering device comprises an ejector body.The ejector body comprises an inlet portion, a neck portion and a bow portion which are connected in sequence.The heights of the longitudinal sections of the inlet portion, the neck portion and the bow portion are sequentially decreased and then increased, and the gas ejector is transversely arranged relative to a filter pipe of the filtering device.By improving the shape of the gas ejector and the arrangement mode of the pulse back blowing dedusting device, the filter pipe corresponding to the gas ejector can achieve uniform back blowing, the flow distribution condition of gas blown into the gas ejector is improved, and uniform and thorough dedusting can be performed on the filter pipe.In this way, on the one hand, back blowing dedusting pressure can be lowered, vibration of the filter pipe is reduced, and thermal shock and fatigue crack risks are lowered; on the other hand, dust layer bridging between filter pipes can be avoided, and the phenomenon that filter pipes lose efficacy is avoided.
Description
Technical field
The invention belongs to gas solid separation technical field, relate to a kind of defecator, pulse backblowing deashing device in especially a kind of defecator and gas ejector thereof.
Background technology
Along with air quality worsens increasingly, the filtrate exploitation for high-temp waste gas filtering emission gets growing concern for.In recent years, atmospheric environment is caused severe contamination by the hot industry waste gas of a large amount of discharges, and the topic such as " air quality ", " haze ", " PM2.5 " is brought rapidly up, and becomes the hot issue of global concern.
In the industries such as chemical industry, oil, metallurgy, electric power, often produce high-temperature dusty gas.Owing to these different techniques are required for recovering energy and reaching environmental emission standard, therefore need these high-temperature dusty gas are carried out dedusting, thus to the research and development of high-temperature dust removal technology with optimize of crucial importance.Gas cleaning at high temperature refers to and is made directly gas solid separation under the high temperature conditions, it is achieved a technology of gas purification.
The rigid hot filter elements such as sintering metal chimney filter and ceramic screen pipe, have good anti-seismic performance, high temperature resistant, corrosion-resistant and thermal shock resistance properties, have higher filtering accuracy and filter efficiency simultaneously, therefore, be widely used in high temperature gas cleaning field.Pulse backblowing purge mode is the important channel of the performance cycle regeneration realizing filter element, and can the deashing property of pulse backblowing deashing device determine high-temperature gas filter and steady in a long-term run.
The filter of existing commercial Application and the structure of pulse backblowing deashing device thereof are as it is shown in figure 1, the pulse backblowing deashing device of filter is mainly made up of purge gas storage tank 809, pulse backblowing valve 808, blowback pipeline 807, nozzle 806 and injector 804.The inner space sealed separation of filter is clean gas side and ash-laden gas side by the tube sheet 803 of filter.One filter element is made up of many chimney filters 802, and many chimney filters 802 share a gas ejector.
In the filter shown in Fig. 1, dusty gas is entered by gas access 801 and is discharged by gas outlet 805.After dusty gas enters the dusty gas chamber of filter, each chimney filter 802 is arrived under the effect of the gas push power of High Temperature High Pressure, multiple chimney filters 802 share an injector 804, dust granules thing in air-flow is intercepted at the outer surface of chimney filter 802 and forms muffin layer, and gas enters subsequent technique by the porous channel of chimney filter 802.nullCarrying out along with filter operation，The muffin layer progressive additive of chimney filter 802 outer surface，The pressure drop causing filter increases，At this moment the quality rebuilding adopting the mode of pulse backblowing to realize chimney filter 802 is needed，During pulse backblowing deashing，The pulse backblowing valve 808 being in normally off is opened，The opening/closing time of pulse backblowing valve 808 is very short，Belong to transient process，High pressure nitrogen or Clean synthesis gas moment in purge gas storage tank 809 enter in blowback pipeline 807，Then pass through injector 804，Substantial amounts of gas can be introduced from clean gas chamber under the ejector action of injector 804 and together enter the inside of injector 804，The inwall of purge gas traverse chimney filter 802，The dust layer of chimney filter 802 outer surface is peeled off by the energy utilizing transient state，The resistance making chimney filter 802 essentially returns to original state，It is achieved thereby that the quality rebuilding of chimney filter.The dust peeled off falls in the ash bucket below chimney filter, regularly removes.
In pulse backblowing deashing device, blowback air-flow needs to overcome the flow resistance of the operation pressure of filter and filtered airflow, and blowback air stream energy can not all be applied on chimney filter.Further, when sharing an injector, blowback air flows to toward the chimney filter concentrating on injector center, so that the chimney filter deashing in injector is uneven not thorough.The uneven of chimney filter deashing thoroughly can not cause problems with:
First, for making the chimney filter being in marginal position inside injector also obtain deashing effectively, practical operation generally requires the reverse gas cleaning pressure about more than filter operation pressure twice, operating high reverse gas cleaning pressure under operating mode in High Temperature High Pressure can make chimney filter be severely affected power, this process easily causes chimney filter vibration, reverse gas cleaning pressure is more high, and the vibrations of chimney filter are more violent, and this high pressure deashing processing ease causes chimney filter to cause breakage even to rupture because of Thermal shock testing.
In addition, during pulse backblowing, due to after the transient energy entrance chimney filter that blowback air miscarriage is raw, in the process carrying out energy transmission along the adterminal blind end of opening of chimney filter, blowback air-flow constantly leaks from the porous channel space of chimney filter, energy is constantly dissipated in the process of transmission, cause that the ash-removal effect on the bottom of chimney filter and top is widely different, the dust layer being attached to chimney filter lower surface is not easily removed by blowback air-flow, incomplete deashing phenomenon occurs, the dust layer between chimney filter is caused to build bridge, it is easy to cause chimney filter to lose efficacy.
Thus, the present inventor is by experience and the practice of being engaged in relevant industries for many years, it is proposed to the pulse backblowing deashing device of a kind of filter and gas ejector thereof, to overcome the defect of prior art.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of pulse backblowing deashing device and gas ejector, defecator, it is possible to realize the uniform and complete deashing of chimney filter.
In order to achieve the above object, the technical scheme that the present invention proposes is:
On the one hand, The embodiment provides the gas ejector of a kind of pulse backblowing deashing device, it includes injector body, described injector body includes interconnective inlet portion, cervical region and bow portion successively, and the height on the longitudinal section in described inlet portion, cervical region and bow portion becomes big successively from large to small again.
In the gas ejector that such scheme provides, the height on the longitudinal section in described bow portion is maximum.
In actual use, the cross section of described injector body can be fan-shaped, and the gas ejector of multiple sectors can be spliced to form the gas ejector of circle.
On the other hand, The embodiment provides a kind of pulse backblowing deashing device, including blowback air accumulator, described blowback air accumulator is connected to blowback pipeline, described blowback pipeline is provided with nozzle, described nozzle connects gas ejector, described gas ejector includes injector body, described injector body includes interconnective inlet portion, cervical region and bow portion successively, height on the longitudinal section in described inlet portion, cervical region and bow portion becomes big successively from large to small again, and described gas ejector is relative to the chimney filter horizontally set of defecator.
In the pulse backblowing deashing device that such scheme provides, the height on the longitudinal section in described bow portion is maximum.
In actual use, the cross section of described injector body is fan-shaped, and the gas ejector of multiple sectors can be spliced to form the gas ejector of circle.
One pulse backblowing deashing device can use six fan-shaped gas ejectors, and the gas ejector of these six described sectors can be spliced to form a circular gas emitter.
In the structure of pulse ash remover, the corresponding nozzle of the gas ejector of each sector, the corresponding blowback pipeline of multiple described nozzles.
Further, the corresponding multiple described chimney filters of the gas ejector of each sector.
Another aspect, The embodiment provides a kind of defecator, including tube sheet, the spatial separation of described defecator is clean gas chamber and dusty gas chamber by described tube sheet, the described tube sheet of dusty gas chamber side is provided with chimney filter, the described tube sheet of clean gas chamber side is provided with the pulse backblowing deashing device as described in above-mentioned any one technical scheme.
In sum, every technical scheme of the present invention all employ novel gas ejector, this injector includes inlet portion, cervical region and bow portion, height on the longitudinal section in described inlet portion, cervical region and bow portion becomes big successively from large to small again, and this gas ejector is being used in the process of pulse backblowing deashing device and defecator, gas ejector is relative to the chimney filter horizontally set of defecator, and namely the bottom surface of gas ejector is the tube sheet of defecator.Thus it is possible, on the one hand, from inlet portion to cervical region, from large to small, the cervical region reduced in longitudinal section when gas flows through forms the low-pressure area lower than inlet portion pressure in the longitudinal section of gas ejector, and this is conducive to improving feed rate and air inflow；On the other hand, the effect of air accumulator is played in the bow portion of gas ejector, it is possible to buffering purge gas, reflexes to the air-flow on bow portion wall and can blow into chimney filter by from top to down.By improving shape and its set-up mode in pulse backblowing deashing device of gas ejector, blowback air stream can be made no longer to concentrate on center, but make the chimney filter corresponding with gas ejector be obtained for more uniform blowback, improve the air flow method situation blowing into gas ejector, decrease divergence loss, improve the energy transfer efficiency of gas ejector so that chimney filter obtains uniform and complete ground deashing.Such one is to reduce reverse gas cleaning pressure, decreases the vibrations of chimney filter, reduces the risk of thermal shock and fatigue fracture；Two be to avoid the dust layer between chimney filter to build bridge, it is to avoid chimney filter inefficacy.From another aspect, also just extend the service life of chimney filter, and then ensured the reliability that defecator runs.
Accompanying drawing explanation
Fig. 1 is existing filter and the structural representation of pulse backblowing deashing device thereof；
The front elevational schematic of gas ejector structure, schematic top plan view and the left view schematic diagram that Fig. 2 a, 2b, 2c provide for the embodiment of the present invention；
Fig. 3 is the defecator with the gas ejector shown in Fig. 2 a-2c and the structural representation of pulse backblowing deashing device thereof；
Fig. 4 is the distribution schematic diagram of chimney filter on the tube sheet shown in Fig. 3.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, describe the specific embodiment of the present invention in detail referring now to accompanying drawing.
The gas ejector of a kind of pulse backblowing deashing device that Fig. 2 a, 2b and 2c provide for the embodiment of the present invention.This gas ejector includes injector body, and described injector body includes interconnective inlet portion 21, cervical region 22 and bow portion 23 successively, and wherein height h1, h2 and the h3 on the longitudinal section in inlet portion 21, cervical region 22 and bow portion 23 becomes big successively from large to small again.
So, from inlet portion 21 to cervical region 22, from large to small, the cervical region 22 reduced in longitudinal section when gas flows through forms the low-pressure area lower than inlet portion 21 pressure in the longitudinal section of gas ejector, and this is conducive to improving feed rate and air inflow.Using gas ejector horizontally set as after the tube sheet of defecator, the effect of air accumulator is played in its bow portion 23, it is possible to buffering purge gas, reflexes to the air-flow on bow portion wall and can blow into chimney filter by from top to down.By improving shape and its set-up mode in pulse backblowing deashing device of gas ejector, blowback air stream can be made no longer to concentrate on center, but make the chimney filter corresponding with gas ejector be obtained for more uniform blowback, improve the air flow method situation blowing into gas ejector, decrease divergence loss, improve the energy transfer efficiency of gas ejector so that chimney filter obtains uniform and complete ground deashing.Such one is to reduce reverse gas cleaning pressure, decreases the vibrations of chimney filter, reduces the risk of thermal shock and fatigue fracture；Two be to avoid the dust layer between chimney filter to build bridge, it is to avoid chimney filter inefficacy.
In the gas ejector that above-described embodiment provides, the height h3 on the longitudinal section in described bow portion 23 is maximum, and bow portion 23 so can be made to play the effect of air accumulator better, in order to make air-flow flow into chimney filter better from top to bottom.
In actual use, described injector body can be various shape.Such as, the cross section (top view shown in Fig. 2 b substantially can be considered its cross-sectional view) of injector body can be circle.But in order to installation settings convenient, and from the effect of reverse gas cleaning, preferably the cross section of injector body being set to sector, the gas ejector so formed is similar to wooden dipper shape at three-dimensional shape, and the gas ejector of the plurality of sector just can be spliced to form the gas ejector of circle.Quantity about fan-shaped gas ejector, it is possible to specifically chosen according to practical situation.
Present invention also offers a kind of defecator and the embodiment of pulse backblowing deashing device thereof.As it is shown on figure 3, the defecator of the present invention includes tube sheet 3, tube sheet 3, by the dusty gas chamber of clean gas chamber that defecator sealed separation is top and bottom, is provided with gas access 1, is provided with gas outlet 5 in clean gas chamber in dusty gas chamber.As shown in Figure 4, tube sheet 3 is divided into six regions by sector, but it is not limited to six, in other implementations, its quantity can be configured as required, such as five, eight etc., each sector region is equipped with chimney filter 2, chimney filter 2 can be ceramic screen pipe or porous sintered metal chimney filter, and chimney filter 2 is arranged in dusty gas chamber, is provided with ash bucket 9 bottom it.Pulse backblowing deashing device is arranged on the top of defecator, is namely arranged 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.Corresponding to six sector regions on tube sheet 3, horizontally set (horizontally set on tube sheet 3, relative to chimney filter 2 longitudinally disposed for, i.e. being horizontally disposed with shown in Fig. 3) six fan-shaped gas ejectors 4 (three-dimensional shape of injector is wooden dipper shape), multiple chimney filters 2 share a gas ejector 4, corresponding each gas ejector 4, the blowback pipeline 7 connecting blowback air accumulator 8 is split into six nozzles above tube sheet 3, each nozzle is arranged on the inlet portion of gas ejector 4, and is provided with a corresponding pulse backblowing valve 6 on each nozzle.
Dusty gas is entered in dusty gas chamber by the gas access 1 of defecator, chimney filter 2 is arrived under the effect of gas push power, dust granules thing in air-flow is intercepted at the outer surface of chimney filter 2 and forms muffin layer, gas enters clean gas chamber after being filtered by the porous channel of chimney filter 2, is discharged into subsequent technique through gas outlet 5.Along with the carrying out of filter operation, the muffin layer progressive additive of chimney filter 2 outer surface, cause that the pressure drop of defecator increases, at this moment need the regeneration adopting the mode of pulse backblowing to realize chimney filter performance.During pulse backblowing deashing, the pulse backblowing valve 6 being in normally off is opened, the time of pulse backblowing valve 6 opening and closing is very short, belong to transient process, high pressure nitrogen or Clean synthesis gas moment in blowback air accumulator 8 enter in blowback pipeline 7, then pass through the wooden dipper shape gas ejector 4 of horizontally set, under the ejector action of gas ejector 4, introduce substantial amounts of clean gas from clean gas chamber and together enter the inside of gas ejector 4, the inwall of purge gas traverse chimney filter 2, the dust layer of chimney filter 2 outer surface is peeled off by the energy utilizing transient state, the resistance making chimney filter 2 essentially returns to original state, it is achieved thereby that the regeneration of chimney filter performance.The dust peeled off falls in ash bucket 9, regularly removes.
In the present embodiment, pulse backblowing deashing device employs novel gas ejector 4, this injector 4 includes inlet portion 21, cervical region 22 and bow portion 23, height on the longitudinal section in described inlet portion 21, cervical region 22 and bow portion 23 becomes big successively from large to small again, and this gas ejector 4 is being used in the process of pulse backblowing deashing device and defecator, gas ejector 4 is relative to chimney filter 2 horizontally set, and namely the bottom of gas ejector is the tube sheet 3 of defecator.Thus it is possible, on the one hand, from inlet portion 21 to cervical region 22, from large to small, the cervical region 22 reduced in longitudinal section when gas flows through forms the low-pressure area lower than inlet portion 21 pressure in the longitudinal section of gas ejector 4, and this is conducive to improving feed rate and air inflow；On the other hand, the effect of air accumulator is played in the bow portion 23 of gas ejector 4, it is possible to buffering purge gas, reflexes to the air-flow on bow portion wall and can blow into chimney filter 2 by from top to down.By improving shape and its set-up mode in pulse backblowing deashing device of gas ejector 4, blowback air stream can be made no longer to concentrate on center, but make the chimney filter 2 corresponding with gas ejector 4 be obtained for more uniform blowback, improve the air flow method situation blowing into gas ejector, decrease divergence loss, improve the energy transfer efficiency of gas ejector so that chimney filter obtains uniform and complete ground deashing.Such one is to reduce reverse gas cleaning pressure, decreases the vibrations of chimney filter, reduces the risk of thermal shock and fatigue fracture；Two be to avoid the dust layer between chimney filter to build bridge, it is to avoid chimney filter inefficacy.From another aspect, also just extend the service life of chimney filter, and then ensured the reliability that defecator runs.
Comprehensive, each embodiment provided by the invention has the advantages that
(1) from inlet portion 21 to cervical region 22, the longitudinal section of gas ejector 4 is little by changing to greatly, cervical region 22 place reduced in gas ejector longitudinal section when gas flows through forms the low-pressure area lower than inlet portion 21 pressure, and this is conducive to improving the feed rate entering gas ejector 4 and air inflow.The effect of air accumulator can be played by the bow portion 23 of gas ejector 4, improves air flow method situation when blowback air flows into gas ejector 4, decreases divergence loss, overcome inhomogeneities during pulse backblowing.And then induction efficiency (gaseous mass of induction efficiency=injection ambient gas quality/nozzle winding-up) can be improved, improve purge gas total amount (gaseous mass of purge gas total amount=injection ambient gas quality+nozzle winding-up), owing to reverse gas cleaning gas is high pressure low temperature gas, easily high temperature chimney filter is formed Thermal Stress, high-temperature gas around injection can improve the temperature of purge gas, reduces the low temperature purge gas Thermal Stress to chimney filter.And purge gas pressure is uniformly distributed in injector, thoroughly remove the filter cake on chimney filter surface equably, effectively recovered the pressure drop of chimney filter, decrease filter cake and build bridge.
(2) divide sector region, and make the corresponding multiple chimney filters 2 of each gas ejector 4, be conducive to increasing the blowback area of gas ejector 4 impact, make blowback uniform in effect, be conducive to industrial application.For the injector 4 being vertically arranged, the projection on tube sheet 3 of each injector 4 is circle, can not realize seamless connection, therefore can cause that part chimney filter can not be covered by injector 4 during due to circular and circular arrangement.And the structure of the gas ejector of the present invention and arrangement, it is possible on the tube sheet 3 of defecator, arrange chimney filter as much as possible.
(3) the corresponding nozzle of each gas ejector 4, the corresponding blowback pipeline 7 of multiple described nozzles, simplify the structure of pulse backblowing deashing device.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. the gas ejector of a pulse backblowing deashing device, it is characterized in that, including injector body, described injector body includes interconnective inlet portion, cervical region and bow portion successively, and the height on the longitudinal section in described inlet portion, cervical region and bow portion becomes big successively from large to small again.
2. the gas ejector of pulse backblowing deashing device according to claim 1, it is characterised in that the height on the longitudinal section in described bow portion is maximum.
3. the gas ejector of pulse backblowing deashing device according to claim 1 and 2, it is characterised in that the cross section of described injector body is fan-shaped, and the gas ejector of multiple sectors can be spliced to form the gas ejector of circle.
4. a pulse backblowing deashing device, including blowback air accumulator, described blowback air accumulator is connected to blowback pipeline, described blowback pipeline is provided with nozzle, described nozzle connects gas ejector, it is characterized in that, described gas ejector includes injector body, described injector body includes interconnective inlet portion, cervical region and bow portion successively, height on the longitudinal section in described inlet portion, cervical region and bow portion becomes big successively from large to small again, and described gas ejector is relative to the chimney filter horizontally set of defecator.
5. pulse backblowing deashing device according to claim 4, it is characterised in that the height on the longitudinal section in described bow portion is maximum.
6. the pulse backblowing deashing device according to claim 4 or 5, it is characterised in that the cross section of described injector body is fan-shaped, and the gas ejector of multiple sectors can be spliced to form the gas ejector of circle.
7. pulse backblowing deashing device according to claim 6, it is characterised in that the gas ejector of six described sectors can be spliced to form a circular gas ejector.
8. pulse backblowing deashing device according to claim 6, it is characterised in that the corresponding nozzle of the gas ejector of each sector, the corresponding blowback pipeline of multiple described nozzles.
9. pulse backblowing deashing device according to claim 8, it is characterised in that the corresponding multiple described chimney filters of the gas ejector of each sector.
10. a defecator, including tube sheet, the spatial separation of described defecator is clean gas chamber and dusty gas chamber by described tube sheet, the described tube sheet of dusty gas chamber side is provided with chimney filter, it is characterized in that, the described tube sheet of clean gas chamber side is provided with the pulse backblowing deashing device as described in any one of claim 4-9.
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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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| 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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| Publication Number | Publication Date |
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| CN105727648A true CN105727648A (en) | 2016-07-06 |
| CN105727648B CN105727648B (en) | 2018-06-22 |
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| CN201610223590.3A Expired - Fee Related CN105727648B (en) | 2016-04-05 | 2016-04-05 | Pulse backblowing deashing device and its gas ejector, filter device |
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Cited By (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 |
| CN108525409A (en) * | 2018-06-04 | 2018-09-14 | 中国石油大学(北京) | The determination of failure screen pipe, guard method and the device of filter |
| 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 |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110084628A (en) * | 2010-01-18 | 2011-07-26 | 조선내화 주식회사 | Immersion nozzle for casting and continuous casting apparatus including the same |
| 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 |
-
2016
- 2016-04-05 CN CN201610223590.3A patent/CN105727648B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110084628A (en) * | 2010-01-18 | 2011-07-26 | 조선내화 주식회사 | Immersion nozzle for casting and continuous casting apparatus including the same |
| 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 |
Cited By (6)
| 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 |
| CN108525409A (en) * | 2018-06-04 | 2018-09-14 | 中国石油大学(北京) | The determination of failure screen pipe, guard method and the device of filter |
| 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 |
| 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 |
| 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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| CN105727648B (en) | 2018-06-22 |
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