CN103768870B - A kind of filter element of duster is with scraping apparatus for ash - Google Patents
A kind of filter element of duster is with scraping apparatus for ash Download PDFInfo
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- CN103768870B CN103768870B CN201410013649.7A CN201410013649A CN103768870B CN 103768870 B CN103768870 B CN 103768870B CN 201410013649 A CN201410013649 A CN 201410013649A CN 103768870 B CN103768870 B CN 103768870B
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- scraper plate
- ash
- pull bar
- filter core
- duster
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- 238000007790 scraping Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000011120 plywood Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 abstract description 42
- 238000000034 method Methods 0.000 abstract description 11
- 238000013517 stratification Methods 0.000 abstract description 11
- 238000004140 cleaning Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000010926 purge Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 239000003245 coal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of advanced tubular filter-element dust collector with scraping apparatus for ash, comprise scraper plate and push-pull mechanism, described scraper plate is arranged the perforation of some filter cores, in described filter core perforation, rotating ring is set and scrapes cutterhead, arrange cavity air flue in described scraper plate, described cavity air flue arranges and leads to the inflatable mouth that ring scrapes cutterhead, and described ring is scraped inside cutterhead and arranged screw blade, on described screw blade, corresponding nozzle position arranges induced draft plate, and described ring is scraped interval, cutterhead inner circumferential side and arranged the tongue piece shovel board of stretching out.Scrape slab integral described in the present invention is driven by described push-pull mechanism when clearing up dust stratification to move along described filter core, once can carry out deashing process to all filter cores of suit, cleaning efficiency is very high; Cavity air flue is set in described scraper plate, alleviates described scraper plate weight, and drive screw blade more smooth rotation ring scrape, effluent air also can purge dust stratification when scraping ash, in addition tongue piece shovel board loosen, dust stratification cleaning more thorough.
Description
Technical field
The invention belongs to filter element of duster technical field of dust removal equipment, particularly a kind of filter element of duster is with scraping apparatus for ash.
Background technology
The shortage of China's oil, natural gas resource, coal will be the topmost primary energy of China quite over a long time in future.But coal conversion utilizes in process and there is problems and challenge, as low in comprehensive utilization ratio, environmental pollution serious, shortage of water resources and CO2 emissions large etc.Therefore, development of coal high-efficiency cleaning comprehensive utilization technique realizes the inevitable choice that energy-saving and emission-reduction are China's energy industry development.And just comprise the industrial policy such as " coal upgrading and comprehensive utilization of resources ", " for brown coal, lower-grade metamorphic bituminous staged conversion, comprehensive utilization " in " clean coal technology development in science and technology " the 12 " ad hoc planning " of national encourage growth.Now the dry dust removal of blast furnace gas becomes the developing direction of current blast furnace gas purification dedusting than the more significant advantage of wet dust removal with it.Because process requirements will carry out dedusting to high-temperature dusty gas, realize gas solid separation and gas purification, the method for dedusting and means are a lot, as gravitational dust collection, inertial dust collection, cyclone separator, bag-type dust, electrostatic precipitation, ceramic dedusting, wet dust removal etc.Concrete equipment comprises as being bag-type dust, the cyclone dust removals such as mechanical dust collector, electric cleaner, filter collector and scrubber.What be relatively adapted to high-temperature dust removal is that the deduster filter core of tubular type filter cartridge construction form realizes gas solid separation to carry out filtration, dusty gas through filtering enters air-purifying chamber, and the filter core of deduster its outer surface in dust removal by filtration process can adsorb a large amount of granule dusts, along with dust constantly increases, filter quality will be affected, therefore the dust to cartridge surface is piled up is needed to remove, generally use injection tube now, pulse jet means are utilized to realize reverse deashing, the space before but the result of blowback necessarily makes the air purified again enter purification, because the purified gas scale of construction of jetting is larger at every turn, secondary filter could purify again, be unfavorable for increasing work efficiency, and need to increase gas boosting equipment, also have, due to the filter core position of winding-up mouth correspondence can only be cleared up when tubulose spout is jetted, spout can not change blowback direction, and there is deashing dead angle not easy cleaning in process of jetting, unfavorable accumulation of jetting can solid all the more difficulty remove, therefore can not well thoroughly deashing dedusting, also there is part producer to design and adopt dust removal with machine device, as brush is installed in manipulator front end, or mechanical oscillation method, but not only complex structure, and easily damage the filter core of deduster, just must stop production and just can carry out more renew cartridge after filter core damage, and the air-purifying chamber that dust enters deduster will be brought subsequent handling into and cause great loss by removing pollutant gas, the more cleaning efficiency of filter core quantity is lowly difficult to clean out filter core fast in addition.Therefore, need badly and in dust removal with machine, make further improvement and bring new ideas solve the problems referred to above, fill up the technological gap in the dust removal with machine field of filter element of duster.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, provide a kind of can the good filter element of duster of fast dust-removing, ash-removal effect with scraping apparatus for ash.
For achieving the above object, the technical solution used in the present invention is: a kind of filter element of duster, with scraping apparatus for ash, comprises scraper plate and push-pull mechanism, and described scraper plate is arranged the perforation of some filter cores, described filter core site of perforation arranges ring and scrapes cutterhead.
Arrange cavity air flue in described scraper plate, described cavity air flue arranges the inflatable mouth leading to filter core perforation.
Described scraper plate arranges ash leakage hole.
Described ring is scraped interval, cutterhead inner circumferential side and is arranged the tongue piece shovel board of stretching out, and arranges nozzle between described tongue piece shovel board.
Described nozzle direction and filter core are bored a hole in 0-30 ° of angles.
Described tongue piece shovel board quantity is at least two.
Described tongue piece shovel board front end arranges wedge angle, and the inner of described tongue piece shovel board adapts to described filter core outer wall shape.
Described scraper plate is made up of the top plate fastened and lower plywood, and the buckling surface of described top plate and lower plywood arranges groove respectively and forms described cavity air flue.
Described push-pull mechanism comprises pull bar above described scraper plate and driver, and described pull bar is through air-purifying chamber dividing plate, and described pull bar top connects driver, and described pull bar arranges sealing ring.
Described push-pull mechanism comprises pull bar below described scraper plate and driver, and described pull bar is between the filter core bracket and air-purifying chamber dividing plate of deduster, and through described filter core bracket, described pull bar bottom connects driver.
Described push-pull mechanism comprises the pull bar, transmission mechanism and the driver that connect described scraper plate, and described driver is arranged on deduster outside, and described transmission mechanism is the leverage connecting described pull bar and driver.
The filter element of duster of the present invention scraper plate scraped apparatus for ash and comprise push-pull mechanism and bore a hole with some filter cores, and ring is set in described filter core site of perforation scrapes cutterhead, during use, the filter core of described deduster is sleeved in the perforation of described filter core, when needing the dust stratification clearing up described filter core outer surface, described scraper plate entirety is driven to move up and down by described push-pull mechanism, once can carry out deashing process to all filter cores be set with on it, cleaning efficiency is very high, and it is lower to the shape need of filter core, as long as cross sectional shape does not axially change, as cylindroid, cylinder, the versions such as cuboid, cavity air flue is set in described scraper plate, described cavity air flue arranges the inflatable mouth leading to filter core perforation, be designed to the weight that internal cavity structures significantly can alleviate described scraper plate itself, described winding-up mouth can be jetted to dust stratification when scraping ash, when avoiding mechanical curettage, dust adhering is at cartridge surface difficult drop-off or be attached to described ring and scrape cutterhead increases and extrude filter core, be conducive to thoroughly cleaning dust stratification, and protection filter core prolonging service life of filter elements, improve deduster on-road efficiency.
Described scraper plate arranges ash leakage hole, and the dust struck off can fall along described ash leakage hole, and particularly in the process of upwards scraping ash, meaning is larger; Described ring is scraped interval, cutterhead inner circumferential side and is arranged the tongue piece shovel board of stretching out, when use, the dust of attachment shovel first loosens by described tongue piece shovel board, be convenient to ring and scrape the effect that cutterhead realizes thoroughly deashing fast, arranging described another benefit of tongue piece shovel board is to avoid the mechanism inside when deashing only having ring to scrape cutterhead overstock more dust and produce damage to filter core, also protect the bonding layer of filter core outside as far as possible, ensure higher filter efficiency; Arrange nozzle between described tongue piece shovel board, can increase substantially ash-removal effect: when avoiding mechanical curettage, dust adhering is at filter core or ring scraper panel surface difficult drop-off, described nozzle direction and filter core are bored a hole in 0-30 ° of angles, dust outwards can well be blown out; Described tongue piece shovel board quantity is at least two, uniform described ring scrapes cutterhead surrounding, synchronous propelling is effective, described tongue piece shovel board front end arranges wedge angle, be convenient to directly insert in staubosphere, the inner of described tongue piece shovel board adapts to described filter core outer wall shape and can better to fit described filter core, improves the effect loosening dust stratification; Described scraper plate is made up of the top plate fastened and lower plywood, and the buckling surface of described top plate and lower plywood arranges groove respectively and forms described cavity air flue, and preparation is simple, with low cost.
Described push-pull mechanism can be designed to various structures pattern as required: a kind of described push-pull mechanism comprises pull bar above described scraper plate and driver, described pull bar is through described air-purifying chamber dividing plate, described pull bar top connects driver, described pull bar arranges sealing ring, avoids dusty gas to enter air-purifying chamber and cause secondary pollution; Another kind of described push-pull mechanism comprises pull bar below described scraper plate and driver, and described pull bar is between the filter core bracket and air-purifying chamber dividing plate of deduster, and through described filter core bracket, described pull bar bottom connects driver; Above two kinds of versions, all can realize moving up and down of described scraper plate, and better can ensure the good isolation of air-purifying chamber and dirt pocket, described push-pull mechanism can also be, comprise the pull bar, transmission mechanism and the driver that connect described scraper plate, described driver is arranged on deduster outside, can not need to carry out high temperature protection, range of choice is wide, described transmission mechanism is the leverage connecting described pull bar and driver, there is provided feeding to export by driver, realize moving up and down of described scraper plate by leverage transmission.
Modern design of the present invention is ingenious, and disposablely can realize omnibearing ash-removal effect fast, integral replacing is convenient, has good value for applications.
figure of description
Below in conjunction with accompanying drawing, the present invention is further detailed:
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is structural representation end view drawing of the present invention;
Fig. 3 is the nozzle gas circuit structure schematic diagram of scraper plate of the present invention;
Fig. 4 is the structural representation of the embodiment of the present invention four;
Fig. 5 is the structural representation of the embodiment of the present invention five.
Specific embodiment
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of filter element of duster is with scraping apparatus for ash, comprise scraper plate 1 and push-pull mechanism, described scraper plate 1 is arranged some filter cores perforation 2, described filter core 2 positions of boring a hole arrange ring and scrape cutterhead 3, arrange cavity air flue 4 in described scraper plate 1, described cavity air flue 4 arranges the inflatable mouth leading to filter core perforation 2, and described scraper plate 1 arranges ash leakage hole 5.
Described ring is scraped interval, cutterhead 3 inner circumferential side and is arranged the tongue piece shovel board 6 of stretching out, and arranges nozzle 7 between described tongue piece shovel board 6, and described tongue piece shovel board 6 quantity is four, and the inner of described tongue piece shovel board 6 adapts to described filter core 8 outer wall shape.
Described push-pull mechanism comprises pull bar 9 above described scraper plate 1 and driver 10, and described pull bar 9 is through described air-purifying chamber dividing plate 11, and described pull bar 9 top connects driver 10, and described pull bar 9 arranges sealing ring 12.
Embodiment two
Be with the difference of embodiment one: described scraper plate 1 is made up of the top plate fastened and lower plywood, the buckling surface of described top plate and lower plywood arranges groove respectively and forms described cavity air flue 4, described push-pull mechanism comprises pull bar 9 below described scraper plate 1 and driver 10, described pull bar 9 is between the filter core bracket and air-purifying chamber dividing plate 11 of deduster, and through described filter core bracket, described pull bar 9 bottom connects driver 10.
Embodiment three
Be with the difference of embodiment one or two: described push-pull mechanism comprises the pull bar 9, transmission mechanism and the driver 10 that are connected described scraper plate 1, described driver 10 is arranged on deduster outside, and described transmission mechanism is the leverage connecting described pull bar 9 and driver 10.
Embodiment four
As Figure 1 and Figure 4, be with the difference of embodiment one or two: described nozzle 7 direction and filter core bore a hole 2 in 0-30 ° of angles.
Embodiment five
As shown in Figure 5, be with the difference of embodiment one or two: described nozzle 7 quantity is eight, described tongue piece shovel board 6 quantity is eight.
The filter element of duster of the present invention scraper plate scraped apparatus for ash and comprise push-pull mechanism and bore a hole with some filter cores, and ring is set in described filter core site of perforation scrapes cutterhead, during use, the filter core of described deduster is sleeved in the perforation of described filter core, when needing the dust stratification clearing up described filter core outer surface, described scraper plate entirety is driven to move up and down by described push-pull mechanism, once can carry out deashing process to all filter cores be set with on it, cleaning efficiency is very high, and it is lower to the shape need of filter core, as long as cross sectional shape does not axially change, as cylindroid, cylinder, the versions such as cuboid, cavity air flue is set in described scraper plate, described cavity air flue arranges the inflatable mouth leading to filter core perforation, be designed to the weight that internal cavity structures significantly can alleviate described scraper plate itself, described winding-up mouth can be jetted to dust stratification when scraping ash, when avoiding mechanical curettage, dust adhering is at cartridge surface difficult drop-off or be attached to described ring and scrape cutterhead increases and extrude filter core, be conducive to thoroughly cleaning dust stratification, and protection filter core prolonging service life of filter elements, improve deduster on-road efficiency.
Described scraper plate arranges ash leakage hole, and the dust struck off can fall along described ash leakage hole, and particularly in the process of upwards scraping ash, meaning is larger; Described ring is scraped interval, cutterhead inner circumferential side and is arranged the tongue piece shovel board of stretching out, when use, the dust of attachment shovel first loosens by described tongue piece shovel board, be convenient to ring and scrape the effect that cutterhead realizes thoroughly deashing fast, arranging described another benefit of tongue piece shovel board is to avoid the mechanism inside when deashing only having ring to scrape cutterhead overstock more dust and produce damage to filter core, also protect the bonding layer of filter core outside as far as possible, ensure higher filter efficiency; Arrange nozzle between described tongue piece shovel board, can increase substantially ash-removal effect: when avoiding mechanical curettage, dust adhering is at filter core or ring scraper panel surface difficult drop-off, described nozzle direction and filter core are bored a hole in 0-30 ° of angles, dust outwards can well be blown out; Described tongue piece shovel board quantity is at least two, uniform described ring scrapes cutterhead surrounding, synchronous propelling is effective, described tongue piece shovel board front end arranges wedge angle, be convenient to directly insert in staubosphere, the inner of described tongue piece shovel board adapts to described filter core outer wall shape and can better to fit described filter core, improves the effect loosening dust stratification; Described scraper plate is made up of the top plate fastened and lower plywood, and the buckling surface of described top plate and lower plywood arranges groove respectively and forms described cavity air flue, and preparation is simple, with low cost.
Described push-pull mechanism can be designed to various structures pattern as required: a kind of described push-pull mechanism comprises pull bar above described scraper plate and driver, described pull bar is through described air-purifying chamber dividing plate, described pull bar top connects driver, described pull bar arranges sealing ring, avoids dusty gas to enter air-purifying chamber and cause secondary pollution; Another kind of described push-pull mechanism comprises pull bar below described scraper plate and driver, and described pull bar is between the filter core bracket and air-purifying chamber dividing plate of deduster, and through described filter core bracket, described pull bar bottom connects driver; Above two kinds of versions, all can realize moving up and down of described scraper plate, and better can ensure the good isolation of air-purifying chamber and dirt pocket, described push-pull mechanism can also be, comprise the pull bar, transmission mechanism and the driver that connect described scraper plate, described driver is arranged on deduster outside, can not need to carry out high temperature protection, range of choice is wide, described transmission mechanism is the leverage connecting described pull bar and driver, there is provided feeding to export by driver, realize moving up and down of described scraper plate by leverage transmission.
Modern design of the present invention is ingenious, and disposablely can realize omnibearing ash-removal effect fast, integral replacing is convenient, has good value for applications.
Claims (9)
1. a filter element of duster is with scraping apparatus for ash, it is characterized in that: comprise scraper plate and push-pull mechanism, described scraper plate is arranged the perforation of some filter cores, described filter core site of perforation arranges ring and scrapes cutterhead, arrange cavity air flue in described scraper plate, described cavity air flue arranges the inflatable mouth leading to filter core perforation.
2. filter element of duster, with scraping apparatus for ash, is characterized in that as claimed in claim 1: described scraper plate arranges ash leakage hole.
3. filter element of duster, with scraping apparatus for ash, is characterized in that as claimed in claim 1: described ring is scraped interval, cutterhead inner circumferential side and arranged the tongue piece shovel board of stretching out, and arranges nozzle between described tongue piece shovel board.
4. filter element of duster, with scraping apparatus for ash, is characterized in that as claimed in claim 3: described nozzle direction and filter core are 0-30 ° of angles.
5. as described in claim 3 or 4, filter element of duster, with scraping apparatus for ash, is characterized in that: described tongue piece shovel board quantity is at least two, and described tongue piece shovel board front end arranges wedge angle, and the inner of described tongue piece shovel board adapts to described filter core outer wall shape.
6. filter element of duster, with scraping apparatus for ash, is characterized in that as claimed in claim 1: described scraper plate is made up of the top plate fastened and lower plywood, and the buckling surface of described top plate and lower plywood arranges groove respectively and forms described cavity air flue.
7. as claimed in claim 1 filter element of duster with scraping apparatus for ash, it is characterized in that: described push-pull mechanism comprises pull bar above described scraper plate and driver, described pull bar is through air-purifying chamber dividing plate, and described pull bar top connects driver, and described pull bar arranges sealing ring.
8. as claimed in claim 1 filter element of duster with scraping apparatus for ash, it is characterized in that: described push-pull mechanism comprises pull bar below described scraper plate and driver, described pull bar is between the filter core bracket and air-purifying chamber dividing plate of deduster, and through described filter core bracket, described pull bar bottom connects driver.
9. as claimed in claim 1 filter element of duster with scraping apparatus for ash, it is characterized in that: described push-pull mechanism comprises the pull bar, transmission mechanism and the driver that connect described scraper plate, described driver is arranged on deduster outside, and described transmission mechanism is the leverage connecting described pull bar and driver.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013649.7A CN103768870B (en) | 2014-01-13 | 2014-01-13 | A kind of filter element of duster is with scraping apparatus for ash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410013649.7A CN103768870B (en) | 2014-01-13 | 2014-01-13 | A kind of filter element of duster is with scraping apparatus for ash |
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| Publication Number | Publication Date |
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| CN103768870A CN103768870A (en) | 2014-05-07 |
| CN103768870B true CN103768870B (en) | 2016-01-27 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009852A (en) * | 2016-01-28 | 2017-08-04 | 长城汽车股份有限公司 | A kind of vehicle-mounted air purification device |
| CN107338715A (en) * | 2017-08-09 | 2017-11-10 | 新乡市时瑞公路养护技术有限公司 | Dustless slotting crack sealing machine |
| CN109985416A (en) * | 2019-03-01 | 2019-07-09 | 临泉县清华地产中药材有限责任公司 | A kind of device for refining of Herba Andrographitis |
| CN111013825A (en) * | 2019-03-25 | 2020-04-17 | 四川省宜宾环球集团有限公司 | Glass kiln high temperature dust remover transformation system |
| CN115634529B (en) * | 2022-12-22 | 2023-04-07 | 佛山市禅城燃气有限公司 | Filter for gas dust removal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1488585A (en) * | 1975-02-05 | 1977-10-12 | Yanov D | Gas filter |
| CN1386585A (en) * | 2001-03-28 | 2002-12-25 | 过滤专业股份有限公司 | Magnetic filter |
| CN1511612A (en) * | 2002-12-30 | 2004-07-14 | 张延民 | Cloth bag dust remover |
| CN101164659A (en) * | 2006-10-22 | 2008-04-23 | 张延民 | Bag-type dew dust remover |
| CN103055611A (en) * | 2012-12-26 | 2013-04-24 | 常熟市华能环保工程有限公司 | Apparatus for removing fine dust through dehydration |
| CN203694784U (en) * | 2014-01-13 | 2014-07-09 | 河南龙成煤高效技术应用有限公司 | Ash scraping device for filter elements of dust collector |
-
2014
- 2014-01-13 CN CN201410013649.7A patent/CN103768870B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1488585A (en) * | 1975-02-05 | 1977-10-12 | Yanov D | Gas filter |
| CN1386585A (en) * | 2001-03-28 | 2002-12-25 | 过滤专业股份有限公司 | Magnetic filter |
| CN1511612A (en) * | 2002-12-30 | 2004-07-14 | 张延民 | Cloth bag dust remover |
| CN101164659A (en) * | 2006-10-22 | 2008-04-23 | 张延民 | Bag-type dew dust remover |
| CN103055611A (en) * | 2012-12-26 | 2013-04-24 | 常熟市华能环保工程有限公司 | Apparatus for removing fine dust through dehydration |
| CN203694784U (en) * | 2014-01-13 | 2014-07-09 | 河南龙成煤高效技术应用有限公司 | Ash scraping device for filter elements of dust collector |
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| CN103768870A (en) | 2014-05-07 |
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Effective date of registration: 20231127 Address after: 063200 Chemical Industry Park, Caofeidian Industrial Zone, Tangshan City, Hebei Province Patentee after: HEBEI LONGCHENG COAL COMPREHENSIVE UTILIZATION Co.,Ltd. Address before: 474500 industrial cluster area, hongshiqiao village, HUICHE Town, Xixia County, Nanyang City, Henan Province Patentee before: HENAN LONGCHENG COAL HIGH EFFICIENCY TECHNOLOGY APPLICATION Co.,Ltd. |