CN108283845A - High-effective dust-removing equipment - Google Patents
High-effective dust-removing equipment Download PDFInfo
- Publication number
- CN108283845A CN108283845A CN201810305339.0A CN201810305339A CN108283845A CN 108283845 A CN108283845 A CN 108283845A CN 201810305339 A CN201810305339 A CN 201810305339A CN 108283845 A CN108283845 A CN 108283845A
- Authority
- CN
- China
- Prior art keywords
- cloth bag
- telescope support
- cylinder
- folding
- bag cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
- B01D46/08—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat the working surfaces forming a star shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of high-effective dust-removing equipment, using cylindrical cloth bag simple in structure as filtering material, especially in cloth bag cylinder side, setting can drive the telescope support of cloth bag cylinder reduced overall or recovery, as long as therefore applying pressure to telescope support or pulling force can be achieved with Repeated Compression or the recovery of cloth bag entirety, achieve the effect that high-efficiency vibration dedusting, extend single cloth bag service life, greatly shorten the interval time for replacing cloth bag, cost is reduced, and improves the efficiency of dust collection of this cleaner on the whole.More particularly, in high-effective dust-removing equipment of the invention, at least two cloth bag cylinders are set, therefore working efficiency is greatly improved, adjacent two cloth bags cylinder is connected by shared telescope support simultaneously, and self-cleaning synchronism is also more preferable, and that also more saves telescope support uses and reduce cost.
Description
Technical field
The present invention relates to a kind of cleaners.
Background technology
The purpose of for environmental protection, it usually needs cleaner controls the air such as the dust within the scope of certain space, particle
Middle impurity.And it is most commonly seen with sack cleaner in cleaner, i.e., reach net with bag-like filter filtration of material ash-laden gas
The purpose of change.But filtering material inevitably gathers certain impurity particle on surface in use for some time, makes
Decline at filter effect, and high-frequency replacement filtering material can increase too many use cost, it is therefore desirable to it can clear up in time
The cleaning apparatus for self on filtering material surface.Chinese patent CN 102430296A disclose a kind of bag filter, can solve this and ask
Topic.Its dust-removal cloth-bag upper end is connected on pendulous device, and during going out dirt, dust-removal cloth-bag is swung with pendulous device so that powder
Dirt is not easy to gather on dust-removal cloth-bag, avoids the defect for be easy to causeing dust-removal cloth-bag obstruction, has been correspondingly improved efficiency of dust collection.
But since only upper end connects pendulous device for it, Integral swinging intensity is unbalanced, and especially lower part is weaker, influences whole automatically cleaning effect
Fruit.
Invention content
It the present invention overcomes the deficiencies in the prior art, provides a kind of simple in structure, there is high-efficiency self-cleaning structure, filtrate list
The secondary extended high-effective dust-removing equipment of service life.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of high-effective dust-removing equipment, including dedusting cylinder, at least two cloth bag cylinders that are arranged in the dedusting cylinder,
And the connection cloth bag cylinder air inlet and the gas outlet that is connected to the dedusting cylinder, characterized in that further include being arranged to exist
Cloth bag cylinder side, several telescope supports that the cloth bag cylinder reduced overall or recovery can be driven, described in adjacent two
Cloth bag cylinder is connected by the shared telescope support.
Preferably, the cloth bag cylinder is at least respectively equipped with the telescope support in one group of circumferential direction symmetric position.
Preferably, the cloth bag cylinder is axially connected with the telescope support entire.
Preferably, the telescope support is fixed with the cloth bag cylinder in axial multiple spot at equal intervals.
Preferably, the telescope support is hingedly formed by multiple rod-shaped unit head and the tail, forms multiple hinge joints, the cloth bag
Cylinder has axially extending mountain folding, the alternate wavy folding line of paddy folding, and the position of each hinge joint corresponds to each institute respectively
It states at the folding line of mountain folding or at the folding line of each paddy folding.
Preferably, the spacing of adjacent mountain folding and paddy folding is axial height under cloth bag cylinder straight condition on the cloth bag cylinder
1/40-1/20 times.
Preferably, hinge joint connection corresponding on the telescope support at the mountain folding folding line of the cloth bag cylinder.
Preferably, hinge joint connection corresponding on the telescope support at the paddy folding folding line of the cloth bag cylinder.
Preferably, the cloth bag cylinder is removably connect with the telescope support.
Preferably, the hinge joint of the telescope support is nearby equipped with fixed ring, and corresponding position is equipped on the cloth bag cylinder
The connection ring that can be opened and closed is threaded through in the fixed ring.
Preferably, the connection ring is the flexible strip of overlap joint or snapping.
Preferably, geometrical clamp is set on the cloth bag cylinder, and the collet segment of geometrical clamp forms the connection ring.
Preferably, the telescope support is arranged in the outside of the cloth bag cylinder.
Preferably, each cloth bag cylinder also connects an electric precipitator jointly, and each air inlet is connected to the electric precipitation
The level-one gas outlet of device.
Preferably, the telescope support connects a driving device, and the driving device synchronizes driving all flexible branch
Frame.
Preferably, the telescope support is spring.
Preferably, it is additionally provided with inclined dedusting guide plate below the cloth bag inner barrel cylindrical space.
The advantageous effect that the present invention is reached：
1. the high-effective dust-removing equipment of the present invention, using cylindrical cloth bag simple in structure as filtering material, especially in cloth bag cylinder
The telescope support that can drive cloth bag cylinder reduced overall or recovery is arranged in side portion, as long as therefore applying pressure to telescope support
Or pulling force can be achieved with Repeated Compression or the recovery of cloth bag entirety, achieve the effect that high-efficiency vibration dedusting, extending single cloth bag makes
With the service life, the interval time for replacing cloth bag is greatly shortened, cost is reduced, and improves the dedusting effect of this cleaner on the whole
Rate.More particularly, in high-effective dust-removing equipment of the invention, at least two cloth bag cylinders are set, therefore greatly improve working efficiency,
Adjacent two cloth bags cylinder is connected by shared telescope support simultaneously, and self-cleaning synchronism is also more preferable, also more saves flexible branch
Frame uses and reduces cost.
2. cloth bag cylinder can be enabled at least to be respectively equipped with telescope support in one group of circumferential direction symmetric position, then telescope support can be with
The drive cloth bag cylinder vibration more balanced, is further ensured that cleaning effect.
3. in the present invention, cloth bag cylinder can axially be connected with telescope support entire, such as be bonded, i.e., overall length is solid
Fixed, this connection type is more stablized, and telescope support is strong to the compressed action control force of cloth bag cylinder, and vibration is also very strong.
4. in the present invention, telescope support is fixed with cloth bag cylinder in axial multiple spot at equal intervals, not solid only with respect to overall length
Fixed more convenient saving cost, while can also realize cloth bag cylinder homogeneous compaction when following telescope support to deform, so that vibration is removed
Dirt it is better.
5. telescope support is set as the hinged form of rod-shaped unit head and the tail, while cloth bag cylinder pre-sets wavy folding
Trace, and the position of each hinge joint of telescope support is corresponded to respectively on cloth bag cylinder at the folding line of each mountain folding or at the folding line of each paddy folding,
Therefore driven naturally when telescope support compress cloth bag cylinder is corresponded at folding line generate mountain roll over or paddy roll over, avoid cloth bag cylinder without
Rule backfin generates vibrating dust removing and is not thorough incomplete situation.
6. the spacing of adjacent mountain folding and paddy folding is the 1/40-1/ of axial height under cloth bag cylinder straight condition on cloth bag cylinder
20 times, vibrating effect more preferably, while being processed also relatively easy.
7. hinge joint connection corresponding on telescope support at the mountain folding folding line of cloth bag cylinder, even if then at paddy folding folding line not
It is connect with hinge joint, telescope support compression, after driving mountain to roll over and to be formed naturally, paddy, which is rolled over, also just to be naturally formed.And if further
Hinge joint connection corresponding on telescope support at the paddy folding folding line of cloth bag cylinder is set, then is more stablized.
8. setting cloth bag cylinder is removably connect with telescope support, then facilitates to retain in the case where not generating destruction and stretch
Contracting holder replaces cloth bag cylinder simultaneously.It is for example, bonded, then possible cloth bag cylinder has remnants and is sticked to the influence of telescope support surface
The installation of new cloth bag.
Specifically, fixed ring can be nearby arranged in the hinge joint of telescope support, corresponding position is equipped with and can open on cloth bag cylinder
The connection ring closed is threaded through in fixed ring, and this structure ensures dismountable convenience, while stable connection is reliable.
Can certainly geometrical clamp be set on cloth bag cylinder, the collet segment of geometrical clamp forms connection ring, also very convenient.
9. being arranged telescope support in the outside of cloth bag cylinder, due to the structure of high-effective dust-removing equipment of the present invention, when work,
Flue gas is on the inside of cloth bag, and clean air therefore is so equipped with and can protect telescope support then on the outside of cloth bag after filtering
Also it avoids impurity from being attached on telescope support to be difficult to clean.
10. can also be that dedusting cylinder connects an electric precipitator, then contribute to eliminating comprehensively for different type granule dust.
11. connecting driving device for telescope support, and driving device synchronizes the whole telescope supports of driving, one can guarantee vibration
Stability and high efficiency carries out, while also ensureing each cloth bag cylinder vibration uniformity, cleaning effect uniformity.
Description of the drawings
Fig. 1 is the schematic diagram of the preferred embodiment of the present invention in a state of nature in cloth bag cylinder；
Fig. 2 is the enlarged diagram of part A shown in Fig. 1；
Fig. 3 is the enlarged diagram of Local C shown in Fig. 1；
Fig. 4 is the schematic diagram that the preferred embodiment of the present invention is in compressive state in cloth bag cylinder；
Fig. 5 is the enlarged diagram of part B shown in Fig. 4；
Wherein：
1, electric precipitator, 12, level-one air inlet, 14, level-one gas outlet,
2, dedusting cylinder, 22, air inlet, 24, sliding slot, 26, dedusting guide plate,
4, cloth bag cylinder, 42, gas outlet, 44, at paddy folding folding line, 46, at the folding folding line of mountain, 48, connection ring, 482, strip connects
Order member,
6, telescope support, the 61, first telescope support, the 63, second telescope support, 65, third telescope support, 62, rod-shaped list
Member, 64, hinge joint, 66, fixed ring,
82, connecting plate, 84, cylinder.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figs. 1-5, a kind of high-effective dust-removing equipment, including dedusting cylinder 2, be arranged in dedusting cylinder 2 at least two
A cloth bag cylinder 4, the air inlet 22 of connection cloth bag cylinder 4 and the gas outlet 42 for being connected to dedusting cylinder 2, further include being arranged in cloth bag
4 side of cylinder, several telescope supports 6 that can drive 4 reduced overall of cloth bag cylinder or recovery, cloth bag cylinder 4 is at least at one group
Circumferential symmetric position is respectively equipped with telescope support 6, and adjacent two cloth bags cylinder 4 is connected by shared telescope support 6.
Specifically, in the present embodiment, be arranged side by side two cloth bag cylinders 4 in dedusting cylinder 2 altogether, two cloth bag cylinders 4 it
Between telescope support 6 be the first telescope support 61, two cloth bag cylinders 4 respectively relative to the first telescope support 61 it is symmetrical end and also
It is the second telescope support 63 and third telescope support 65 respectively equipped with telescope support 6
Telescope support 6 is fixed with cloth bag cylinder 4 in axial multiple spot at equal intervals.Telescope support 6 is first by multiple rod-shaped units 62
Tail hingedly forms, and forms multiple hinge joints 64.Specifically, the first telescope support 61 is that several X-shaped telescopic units are end to end
Form, the second telescope support 63 and third telescope support 65 are several end to end forms of V-arrangement telescopic unit.
Cloth bag cylinder 4 has axially extending mountain folding, the alternate wavy folding line of paddy folding, and adjacent mountain on cloth bag cylinder 4
The spacing of folding and paddy folding is 1/40-1/20 times of axial height under 4 straight condition of cloth bag cylinder.
46 connection of hinge joint 64 corresponding on telescope support 6 respectively at the mountain folding folding line of cloth bag cylinder 4, even if then paddy is rolled over
44 do not connect with hinge joint 64 at folding line, and telescope support 6 compresses, and after driving mountain to roll over and to be formed naturally, paddy, which is rolled over, also just to be naturally formed.
And if further 44 hinge joints 64 corresponding on telescope support 6 connect at the paddy folding folding line of setting cloth bag cylinder 4, more
Stablize.Certainly either at paddy folding folding line 44 or mountain roll over and 46 position at accurate folding line all not necessarily selected to be connected at folding line
It connects, as long as above-mentioned purpose can be reached near at hand.
Either cloth bag cylinder 4 mountain folding folding line at 46 or paddy folding folding line at 44 and 6 hinge joint 64 of telescope support company
It is dismountable to connect.Specifically, fixed ring 66 is nearby arranged in the hinge joint 64 of telescope support 6, corresponding position is set on cloth bag cylinder 4
There is the connection ring that can be opened and closed 48 to be threaded through in fixed ring 66, this structure ensures dismountable convenience, while stable connection
Reliably.And the specifically two strip connection units 482 of connection ring 48 overlap the structure to be formed by velcro, this structure ensures
Dismountable convenience, while stable connection is reliable.
Telescope support 6 is arranged in the outside of cloth bag cylinder 4, due to the structure of high-effective dust-removing equipment of the present invention, when work, and cigarette
Gas is on the inside of cloth bag, and clean air therefore can protect telescope support 6 also impurity to be avoided to adhere to then on the outside of cloth bag after filtering
It is difficult to clean on telescope support 6.
In addition, dedusting cylinder 2 is also connected with an electric precipitator 1, including level-one air inlet 12 and level-one gas outlet 14, each air inlet
The connection level-one gas outlet 14 of mouth 22, then contribute to the intermediate flue gas filtered through electric precipitator 1 to enter two cloth bag cylinders 4 simultaneously
Further filtering, helps efficiently to eliminate different type granule dust comprehensively.
The upper end of each telescope support 6 is connected same connecting plate 82, and the inside of dedusting cylinder 2 opens up the sliding slot axially extended
24, what connecting plate 82 coordinated be arranged sliding up and down of can stablizing in sliding slot 24, and 82 outer end of connecting plate and sliding slot 24 connect
Contact portion is equipped with sealing block (not shown), will not be escaped from this with the flue gas ensured in dedusting cylinder 2.
Telescope support 6 connects driving device, then saves manpower and can guarantee that vibration stability and high efficiency carries out.It is driven in the present embodiment
The specifically used cylinder 84 of device, i.e. 84 output end of cylinder are fixed to be connected with whole telescope supports 6 with connecting plate 82.
In the present embodiment, it is additionally provided with below 4 inside cylindrical space of cloth bag cylinder downwards to the inclined dedusting of center position
Guide plate 26, convenient for collecting the trifle in the world to fall.The medial surface of dedusting guide plate 26 is circular conical surface, no corner angle, easy to clean.
When work, pending flue gas enters from level-one air inlet 12, after the processing of electric precipitator 1, by two air inlets 22
It respectively enters in two cloth bag cylinders 4 in dedusting cylinder 2, is further filtered.And in dedusting cylinder 2, flue gas is by cloth
4 lower section of bag cylinder enters, and backward outside enters the clearance space between cloth bag cylinder 4 and dedusting cylinder 2, most afterwards through gas outlet 42
It is discharged by pipeline, completes entire dust removal and filtration.It works after a period of time, cloth bag can be cleaned, to prolong the service life,
Start cylinder 84 at this time, compresses downwards repeatedly and be pulled up telescope support 6, then drive whole 4 up-down vibrations of cloth bag cylinder, reach
To the purpose of high-efficiency cleaning dedusting, and due to the cooperation of connecting plate 82 and sliding slot 24 so that this up-down vibration has guidance quality,
It is more advantageous to and improves dedusting quality.
It should be noted that telescope support can also be spring in the present invention.Geometrical clamp can be set (not on cloth bag cylinder 4
Diagram), connection ring 48 is formed with the collet segment of geometrical clamp.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of high-effective dust-removing equipment, including dedusting cylinder, at least two cloth bag cylinders that are arranged in the dedusting cylinder, with
And the connection cloth bag cylinder air inlet and the gas outlet that is connected to the dedusting cylinder, characterized in that further include setting in institute
Several telescope supports stated cloth bag cylinder side, the cloth bag cylinder reduced overall or recovery can be driven, adjacent two cloth
Bag cylinder is connected by the shared telescope support.
2. a kind of high-effective dust-removing equipment according to claim 1, characterized in that the telescope support and the cloth bag cylinder
It is fixed in axial multiple spot at equal intervals.
3. a kind of high-effective dust-removing equipment according to claim 1, characterized in that the telescope support is by multiple rod-shaped units
Head and the tail hingedly form, and form multiple hinge joints, and the cloth bag cylinder has axially extending mountain folding, the alternate wavy folding of paddy folding
Trace, and the position of each hinge joint is corresponded to respectively at the folding line of each mountain folding or at the folding line of each paddy folding.
4. a kind of high-effective dust-removing equipment according to claim 3, characterized in that adjacent mountain folding and paddy on the cloth bag cylinder
The spacing of folding is 1/40-1/20 times of axial height under cloth bag cylinder straight condition.
5. a kind of high-effective dust-removing equipment according to claim 3, characterized in that at the folding folding line of the mountain of the cloth bag cylinder with
Corresponding hinge joint connection on the telescope support.
6. a kind of high-effective dust-removing equipment according to claim 5, characterized in that at the paddy of cloth bag cylinder folding folding line with
Corresponding hinge joint connection on the telescope support.
7. a kind of high-effective dust-removing equipment according to claim 1, characterized in that the cloth bag cylinder and the telescope support
Dismountable connection.
8. a kind of high-effective dust-removing equipment according to claim 1, characterized in that the telescope support is arranged in the cloth bag
The outside of cylinder.
9. a kind of high-effective dust-removing equipment according to claim 1, characterized in that each cloth bag cylinder also connects one jointly
Electric precipitator, each air inlet are connected to the level-one gas outlet of the electric precipitator.
10. a kind of high-effective dust-removing equipment according to claim 1, characterized in that one driving dress of the telescope support connection
It sets, the driving device synchronizes driving all telescope supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305339.0A CN108283845A (en) | 2018-04-08 | 2018-04-08 | High-effective dust-removing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305339.0A CN108283845A (en) | 2018-04-08 | 2018-04-08 | High-effective dust-removing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108283845A true CN108283845A (en) | 2018-07-17 |
Family
ID=62834348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810305339.0A Withdrawn CN108283845A (en) | 2018-04-08 | 2018-04-08 | High-effective dust-removing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108283845A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298585A (en) * | 2020-04-14 | 2020-06-19 | 何良 | Dust removal device for concrete mixing plant |
| CN111957445A (en) * | 2020-09-08 | 2020-11-20 | 连云港市美丰机械有限公司 | Draw bag structure and adopt this to draw automatic discharge centrifuge of bag structure |
| CN113577929A (en) * | 2021-09-17 | 2021-11-02 | 江苏京环隆亨纸业有限公司 | Workshop dust keeper for coating white board production |
| CN111957445B (en) * | 2020-09-08 | 2024-10-29 | 连云港市美丰机械有限公司 | Draw bagging structure and adopt this automatic unloading centrifuge who draws bagging structure |
-
2018
- 2018-04-08 CN CN201810305339.0A patent/CN108283845A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298585A (en) * | 2020-04-14 | 2020-06-19 | 何良 | Dust removal device for concrete mixing plant |
| CN111298585B (en) * | 2020-04-14 | 2021-08-17 | 潘正武 | Dust removal device for concrete mixing plant |
| CN111957445A (en) * | 2020-09-08 | 2020-11-20 | 连云港市美丰机械有限公司 | Draw bag structure and adopt this to draw automatic discharge centrifuge of bag structure |
| CN111957445B (en) * | 2020-09-08 | 2024-10-29 | 连云港市美丰机械有限公司 | Draw bagging structure and adopt this automatic unloading centrifuge who draws bagging structure |
| CN113577929A (en) * | 2021-09-17 | 2021-11-02 | 江苏京环隆亨纸业有限公司 | Workshop dust keeper for coating white board production |
| CN113577929B (en) * | 2021-09-17 | 2022-05-03 | 江苏京环隆亨纸业有限公司 | Workshop dust keeper for coating white board production |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180717 |
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| WW01 | Invention patent application withdrawn after publication |