CN105771368A - Chlorinated polyethylene filtering device - Google Patents
Chlorinated polyethylene filtering device Download PDFInfo
- Publication number
- CN105771368A CN105771368A CN201610318170.3A CN201610318170A CN105771368A CN 105771368 A CN105771368 A CN 105771368A CN 201610318170 A CN201610318170 A CN 201610318170A CN 105771368 A CN105771368 A CN 105771368A
- Authority
- CN
- China
- Prior art keywords
- screen plate
- chlorinated polyethylene
- hole
- chamber
- feed space
- 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.)
- Granted
Links
- 239000004709 Chlorinated polyethylene Substances 0.000 title claims abstract description 33
- 238000001914 filtration Methods 0.000 title abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 238000012545 processing Methods 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
Abstract
The invention provides a chlorinated polyethylene filtering device, and belongs to the technical field of chemical engineering production equipment. The chlorinated polyethylene filtering device comprises a filtering chamber, a first filtering plate and a second filtering plate, wherein the second filtering plate is intersected with the first filtering plate; the filtering chamber is separated into a feeding chamber and a discharging chamber by the first filtering plate; the feeding chamber and the discharging chamber are adjacent at the left side and the right side; the second filtering plate is in inclined arrangement in the feeding chamber, and separates the feeding chamber into an upper cavity and a lower cavity which are adjacent at the upper side and the lower side; the upper cavity is provided with a feeding opening, a flushing opening and a coarse material outlet which are communicated with the outside; the discharging chamber is provided with a discharging opening communicated with the outside; the coarse material outlet is next to the lower end of the first filtering plate. The device conforms to the characteristics of poor flowability and good corrosion performance of chlorinated polyethylene agglomerate materials; the structure is simple; the manufacturing cost is low; the processing capability is high; special personnel for interference beside are not needed; the discharging of the agglomerate coarse materials is very fast; the labor is saved; the number of times of midway machine halt processing is reduced; the continuous production is realized; the production efficiency is improved.
Description
[technical field]
The present invention relates to technical field of chemical production equipment, be specifically related to a kind of for the defecator in production of chlorinated polyethylene process.
[background technology]
Chlorinated polyethylene, chemical name CPE, for saturated macromolecular material, there is excellent stability, weather resisteant, resistance to ozone, chemical-resistant resistance and ageing-resistant performance, be widely used in the fields such as plastics, rubber, building materials, electromechanics, automobile, military project.The water phase suspension production technology of chlorinated polyethylene is mainly chlorination, deacidification, centrifugation, these several steps dry and hybrid packed, and aborning, the phenomenon of caking easily occurs in each process procedure in chlorinated polyethylene intermediate material.Material creates caking can cause product loss, reduces yield, increases production cost, and normal production that more seriously it is next process brings very serious impact, causes the blockings such as pipe-line equipment, makes follow-up production be difficult to.Owing to the generation of block in production process is difficult to avoid, it is therefore desirable to design special equipment and be filtered separating to caking material.
The applicant finds in production practices process, and the caking material processing chlorinated polyethylene should be noted that problems with: first, and the treating capacity of material is big, it is desirable to the disposal ability of equipment is very strong；Second, material fluidity is poor, it is easy to bridge formation in heaps, causes caking material to mix cannot separate with normal material；3rd, irrational separation way or equipment may require that personnel have intervenes on one side, it is impossible to from people, cause personnel to waste；4 materials is corrosive, and the choice requirement of equipment making is high, improves manufacturing cost.At present, in the industry, the process to caking material is to adopt flat-panel filter or straight line shaker extension set to be easily separated, but adopts flat panel filter machine, and filter easily blocks and do not flow, when caking material is many time, it is often necessary to manually go cleaning, very waste of manpower.Adopting straight line shaker extension set, energy consumption is relatively big, requires also high to the material of equipment, it is necessary to equipment is corrosion-resistant, and the cost of manufacture of equipment is also higher simultaneously.
The present invention is directed to caking material and separate difficult reason, devise a kind of brand-new defecator, the caking material produced is processed, it is possible to meet the requirement for the treatment of capacity in production process, save manpower simultaneously, reduce energy consumption in production of chlorinated polyethylene process.
[summary of the invention]
The goal of the invention of the present invention is in that: for above-mentioned Problems existing, it is provided that a kind of chlorinated polyethylene defecator, and this defecator designs for the feature of chlorinated polyethylene actual production, it is possible to eliminates material preferably and deblocks the harmful effect brought；This device cost of manufacture is low, it is not necessary to big input, and its disposal ability disclosure satisfy that the requirement for the treatment of capacity in production process, can save manpower simultaneously, reduces energy consumption.
To achieve these goals, the technical solution used in the present invention is as follows:
Chlorinated polyethylene defecator, including the second screen plate that filter chamber, the first screen plate and the first screen plate intersect, described filter chamber is separated into the adjacent feed space in left and right, discharge chamber by described first screen plate；Described second screen plate is in the tilted setting of feed space, and feed space is separated into neighbouring upper chamber and lower chambers；Described upper chamber is provided with the charging aperture, flush port and the coarse fodder outlet that are in communication with the outside, and described discharge chamber is provided with the discharging opening being in communication with the outside；The outlet of described coarse fodder is close to the low side of the first screen plate.
nullThe operation principle of this defecator is: be arranged on the inlet pipeline of product pump by this device，Charging aperture、Flush port and coarse fodder outlet all with corresponding pipeline communication，And valve is set on pipeline，During work，Under the draft effect of pump，Material first passes around charging aperture and enters feed space，It is filtered by the first screen plate and the second screen plate，Block is blocked in upper chamber，Normal material is directly entered discharge chamber or enters discharge chamber by lower chambers，It is pumped away entrance next process subsequently，Can termination of pumping after the block in upper chamber is many，Block is released by the valve opening coarse fodder exit，If putting unclean，Flush port fresh water (FW) can be utilized to be rinsed，Block can close technique water valve after having cleared up、Coarse fodder outlet valve，Open inlet valve，During equipment puts back into，If whole process time a few minutes，Convenient power-saving.
In the present invention, described first screen plate, the second screen plate offering through hole, described through hole is one or more the combination in rhombus through hole, ellipse hole, manhole, rectangular through-hole.Owing to chlorinated polyethylene solution block has the feature of himself, feature according to its size and shape, the size of through hole and percent opening also have certain requirement, through hole can for rhombus through hole that the length of side is 0.6-1.5cm, major axis is 1.0-1.5cm, short axle is the elliptical hole of 0.6-1.2cm, aperture is the manhole of 0.6-1.5cm, and the length of side is one or more the combination in 0.6-1.5cm rectangular through-hole.The percent opening of through hole is the 30-60% of the effective developed area of described screen plate.Through hole is excessive, does not have filter effect, and the too small processing speed of through hole is slow.
Due to the production technology characteristic of chlorinated polyethylene, material is contained within more acidic materials, therefore described filter chamber, the first screen plate, the second screen plate preferably employs acid proof plastics or acid proof rustless steel is made.Can select titanium plate or model is the acid-resistant stainless steel of 361L.
In the present invention, described feed space has sidewall, roof and base plate；Second screen plate is in the tilted setting of feed space, and the relatively low low side in position can be connected on sidewall or base plate, and the present invention preferably connects on the sidewall of feed space, finds through practice, and such setting can make the in hgher efficiency of filtration.
Further, the shape of filter chamber can be cuboid, cylindrical or hemispherical etc., and the preferred filter chamber of the present invention is shaped as cuboid or the square bodily form, and preferably the first screen plate is vertically arranged in filter chamber, and Neng Shi filter chamber structure is more stable.
Further, being further opened with observation window on the sidewall of feed space, described observation window is that transparent resin material is made, and observation window and feed space sidewall are tightly connected.It is convenient that above-mentioned setting makes to observe material situation.
It is further preferred that described flush port is positioned at the top of the upper chamber of feed space and one end that close second screen plate is higher, it is more quick that such design makes material and water flow from top to bottom.
It is further preferred that described flush port is connected to flushometer, described flushometer includes spray head and the supply channel being connected with described spray head.
In sum; owing to have employed technique scheme; the invention has the beneficial effects as follows: the feature that the defecator of the present invention meets chlorinated polyethylene caking material poor fluidity, corrosivity is strong, its simple in construction, cost of manufacture is low; disposal ability is strong; personnel need not intervene on side specially, the releasing also very convenient power-saving of caking coarse fodder, reduce the number of times that midway shutdown processes; realize continuous prodution, improve production efficiency.
[accompanying drawing explanation]
Fig. 1 is a kind of embodiment of the chlorinated polyethylene filter of the present invention；
Fig. 2 is the another embodiment of the chlorinated polyethylene filter of the present invention；
1-discharge chamber, 2-charging aperture, 3-the first screen plate, 4-flush port, 5-feed space, 51-upper chamber, 52-lower chambers, 6-the second screen plate, 7-coarse fodder exports.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, 2, it be the structural representation of chlorinated polyethylene defecator of the present invention, in order to remove represent the structure of the present invention, adopt the technique of painting of perspective to present the internal structure of the present invention.The second screen plate 6 that this defecator includes filter chamber, the first screen plate 3 intersects with the first screen plate 3；Filter chamber is separated into the adjacent feed space in left and right 5, discharge chamber 1 by the first screen plate 3；Second screen plate 6 is in the tilted setting of feed space 5, and feed space 5 is separated into neighbouring upper chamber 51 and lower chambers 52；Upper chamber 51 is provided with the charging aperture 2, flush port 4 and the coarse fodder outlet 7 that are in communication with the outside, and discharge chamber 1 is provided with the discharging opening (not shown) being in communication with the outside；Wherein, coarse fodder outlet 7 is close to the low side of the first screen plate 3.In the present invention, the first screen plate 3 not only acts as filtration, it is often more important that play the effect of guide, after block is stopped by first, second screen plate, just slides along the first screen plate 3 tilted, slides to coarse fodder and export 7 places, it is simple to cleaning.
In the present invention, described first screen plate the 3, second screen plate 6 offering through hole, the shape of through hole can be one or more the combination in rhombus through hole, ellipse hole, manhole, rectangular through-hole, is circle shown in Fig. 1 and Fig. 2.Owing to chlorinated polyethylene caking material has the feature of himself, feature according to its size and shape, the size of through hole and percent opening also have certain requirement, through hole can for rhombus through hole that the length of side is 0.6-1.5cm, major axis is 1.0-1.5cm, short axle is the ellipse of 0.6-1.2cm, aperture is the manhole of 0.6-1.5cm, and the length of side is one or more the combination in 0.6-1.5cm rectangular through-hole.The percent opening of through hole is the 30-60% of the effective developed area of described screen plate.Through hole is excessive, does not have filter effect, and the too small processing speed of through hole is slow.
Due to the production technology characteristic of chlorinated polyethylene, material is contained within more acidic materials, therefore described filter chamber, first screen plate the 3, second screen plate 6 preferably employs acid proof plastics or acid proof rustless steel is made.Can select titanium plate or model is the acid-resistant stainless steel of 361L.
In the present invention, described feed space 5 has sidewall, roof and base plate；Second screen plate 6 is in the tilted setting of feed space 5, the relatively low low side in position can be connected on sidewall or base plate, Fig. 1 is illustrated that the situation being connected to sidewall, the situation being connected to base plate shown in Fig. 2, the present invention preferably connects on the sidewall of feed space 5, finding through practice, such setting can make the in hgher efficiency of filtration.
The shape of filter chamber can be cuboid, cylindrical or hemispherical etc., and the preferred filter chamber of the present invention is shaped as cuboid or the square bodily form, and preferably the first screen plate 3 is vertically arranged in filter chamber, and Neng Shi filter chamber structure is more stable.Wherein Fig. 1 is illustrated that the situation that filter chamber is cuboid, and Fig. 2 is illustrated that filter chamber is tubular situation.
Can also offering observation window (Fig. 1, Fig. 2 are all not shown) on the sidewall of feed space 5, observation window selects transparent resin material to make, and observation window and feed space sidewall are tightly connected.It is convenient that above-mentioned setting makes to observe material situation.
Flush port 4 can be arranged on top or the sidewall of the upper chamber 51 of feed space 5, and its position is one end that close second screen plate 6 is higher, and it is more quick that such design makes material and water flow from top to bottom.Flush port 4 is connected to flushometer, and flushometer can include spray head and the supply channel being connected with described spray head.
nullThe operation principle of defecator of the present invention is: be arranged on the inlet pipeline of product pump by this device，Charging aperture、Flush port and coarse fodder outlet all with corresponding pipeline communication，And valve is set on pipeline，During work，Under the draft effect of pump，Material first passes around charging aperture 2 and enters feed space 5，It is filtered by the first screen plate 3 and the second screen plate 6，Block is blocked in upper chamber 51，And the second screen plate 6 passing through to be obliquely installed is snapped down to coarse fodder and exports 7 places，Normal material is directly entered discharge chamber 1 or by lower chambers 52、First screen plate 3 enters discharge chamber 1，It is pumped away entrance next process subsequently，Can termination of pumping after the block in upper chamber 51 is many，Open coarse fodder to export the valve at 7 places and block released，If putting unclean，Flush port 4 can be utilized to be rinsed with fresh water (FW)，Block can close technique water valve after having cleared up、Coarse fodder outlet valve，Open inlet valve，During equipment puts back into，If whole process time a few minutes，Convenient power-saving.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to the patent claim of the present invention, the equal change completed under technical spirit suggested by all present invention or modification are changed, and all should belong to the contained the scope of the claims of the present invention.
Claims (10)
1. chlorinated polyethylene defecator, it is characterised in that: including the second screen plate that filter chamber, the first screen plate and the first screen plate intersect, described filter chamber is separated into the adjacent feed space in left and right, discharge chamber by described first screen plate；Described second screen plate is in the tilted setting of feed space, and feed space is separated into neighbouring upper chamber and lower chambers；Described upper chamber is provided with the charging aperture, flush port and the coarse fodder outlet that are in communication with the outside, and described discharge chamber is provided with the discharging opening being in communication with the outside；The outlet of described coarse fodder is close to the low side of the first screen plate.
2. chlorinated polyethylene defecator according to claim 1, it is characterized in that: offer through hole on described first screen plate, the second screen plate, described through hole is one or more the combination in rhombus through hole, ellipse hole, manhole, rectangular through-hole.
3. chlorinated polyethylene defecator according to claim 1, it is characterised in that: described feed space has sidewall, roof and base plate, and the relatively low one end of the second screen plate is connected on the sidewall of feed space.
4. chlorinated polyethylene defecator according to claim 1, it is characterised in that: described filter chamber is cuboid, and described first screen plate is vertically arranged in filter chamber.
5. chlorinated polyethylene defecator according to claim 1, it is characterised in that: described flush port is positioned at the top of the upper chamber of feed space and one end that close second screen plate is higher.
6. chlorinated polyethylene defecator according to claim 2, it is characterized in that: described through hole is the length of side is the rhombus through hole of 0.6-1.5cm, major axis is 1.0-1.5cm, short axle is the elliptical hole of 0.6-1.2cm, aperture is the manhole of 0.6-1.5cm, and the length of side is one or more the combination in 0.6-1.5cm rectangular through-hole.
7. chlorinated polyethylene defecator according to claim 2, it is characterised in that: the percent opening of the through hole on described screen plate is the 30-60% of the effective developed area of described screen plate.
8. chlorinated polyethylene defecator according to claim 3, it is characterised in that: described filter chamber, the first screen plate, the second screen plate are to adopt acid proof plastics or acid proof rustless steel to make.
9. chlorinated polyethylene defecator according to claim 3, it is characterised in that: being further opened with observation window on the sidewall of described feed space, described observation window is that transparent resin material is made, and observation window and feed space sidewall are tightly connected.
10. chlorinated polyethylene defecator according to claim 5, it is characterised in that: described flush port is connected to flushometer, and described flushometer includes spray head and the supply channel being connected with described spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318170.3A CN105771368B (en) | 2016-05-13 | 2016-05-13 | Haloflex filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318170.3A CN105771368B (en) | 2016-05-13 | 2016-05-13 | Haloflex filter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105771368A true CN105771368A (en) | 2016-07-20 |
| CN105771368B CN105771368B (en) | 2019-01-18 |
Family
ID=56379725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610318170.3A Active CN105771368B (en) | 2016-05-13 | 2016-05-13 | Haloflex filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105771368B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215482A (en) * | 2016-08-31 | 2016-12-14 | 中船黄埔文冲船舶有限公司 | A kind of sea water filter |
| CN110966125A (en) * | 2019-10-22 | 2020-04-07 | 四会市新亚商绿环保科技有限公司 | Air inlet filter screen, automobile energy-saving air grid and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061871U (en) * | 1989-12-15 | 1990-09-12 | 蔡光 | Adjustable multi-purpose sifter for seed selection |
| EP0615957A1 (en) * | 1993-03-13 | 1994-09-21 | Sang Oh Hong | Device for dehydrating sludge waste |
| CN201249179Y (en) * | 2008-08-28 | 2009-06-03 | 穆卫江 | Sieve plate of heavy vibration sieve |
| CN202237507U (en) * | 2011-07-28 | 2012-05-30 | 广东联塑科技实业有限公司 | Rainwater purifying device under eave |
| CN104667601A (en) * | 2013-11-29 | 2015-06-03 | 无锡市同创玻璃钢船艇厂 | Sludge box on ships |
| CN204620401U (en) * | 2013-06-20 | 2015-09-09 | 神华集团有限责任公司 | Head coal sculpingscreen |
| CN205127518U (en) * | 2015-11-30 | 2016-04-06 | 浙江洁宇环保装备科技有限公司 | Filter equipment that aluminium oxide was carried |
| CN205796698U (en) * | 2016-05-13 | 2016-12-14 | 广西锦华新材料科技有限公司 | Chlorinated polyethylene defecator |
-
2016
- 2016-05-13 CN CN201610318170.3A patent/CN105771368B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061871U (en) * | 1989-12-15 | 1990-09-12 | 蔡光 | Adjustable multi-purpose sifter for seed selection |
| EP0615957A1 (en) * | 1993-03-13 | 1994-09-21 | Sang Oh Hong | Device for dehydrating sludge waste |
| CN201249179Y (en) * | 2008-08-28 | 2009-06-03 | 穆卫江 | Sieve plate of heavy vibration sieve |
| CN202237507U (en) * | 2011-07-28 | 2012-05-30 | 广东联塑科技实业有限公司 | Rainwater purifying device under eave |
| CN204620401U (en) * | 2013-06-20 | 2015-09-09 | 神华集团有限责任公司 | Head coal sculpingscreen |
| CN104667601A (en) * | 2013-11-29 | 2015-06-03 | 无锡市同创玻璃钢船艇厂 | Sludge box on ships |
| CN205127518U (en) * | 2015-11-30 | 2016-04-06 | 浙江洁宇环保装备科技有限公司 | Filter equipment that aluminium oxide was carried |
| CN205796698U (en) * | 2016-05-13 | 2016-12-14 | 广西锦华新材料科技有限公司 | Chlorinated polyethylene defecator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215482A (en) * | 2016-08-31 | 2016-12-14 | 中船黄埔文冲船舶有限公司 | A kind of sea water filter |
| CN110966125A (en) * | 2019-10-22 | 2020-04-07 | 四会市新亚商绿环保科技有限公司 | Air inlet filter screen, automobile energy-saving air grid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105771368B (en) | 2019-01-18 |
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