CN105921531B - Scrubbing unit nozzle angle automatic adjusting mechanism - Google Patents
Scrubbing unit nozzle angle automatic adjusting mechanism Download PDFInfo
- Publication number
- CN105921531B CN105921531B CN201610277073.4A CN201610277073A CN105921531B CN 105921531 B CN105921531 B CN 105921531B CN 201610277073 A CN201610277073 A CN 201610277073A CN 105921531 B CN105921531 B CN 105921531B
- Authority
- CN
- China
- Prior art keywords
- brush roll
- scrubbing unit
- automatic adjusting
- adjusting mechanism
- roll
- 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.)
- Active
Links
- 238000005201 scrubbing Methods 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
-
- B08B1/12—
-
- B08B1/32—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
Abstract
The present invention relates to a kind of scrubbing unit nozzle angle automatic adjusting mechanism, including the upper guide bush being located on upper brush roll or upper backup roll, the lower guide sleeve being located on lower brush roll or lower backing roll, guide rod and drive link, by line, vertical and both ends are respectively provided in the groove of upper guide bush and lower guide sleeve guide rod with strip, guide rod be equipped with strip it is vertical by line and with axially in parallel guide groove, drive link one end is equipped with inserted link, the other end is connected with the jet pipe equipped with nozzle sets, the inserted link end of drive link, which is swung, to drive jet pipe to rotate, in the insertion guide groove that inserted link coordinates, what is coordinated on guide rod is cased with the identical compression spring of two compressed coefficients, what one end of two compression springs was respectively cooperating with is located in the groove of upper guide bush and lower guide sleeve, the other end is mutually separated by inserted link.The mechanism can be with the spray angle for the change automatic adjustment nozzle that strip passes through line.
Description
Technical field
The invention belongs to strip processing line cleaning section apparatus field, and in particular to a kind of scrubbing unit nozzle angle automatic adjustment
Mechanism.
Background technology
Cleaning section equipment in strip processing line generally can all set scrubbing unit, be mainly used to remove the oxidation of belt steel surface
Remaining a large amount of small foreign matters, improve strip surface quality in skin and pickling and alkali cleaning production line.Nozzle in brushing device,
For rinsing the iron scale of strip upper and lower surface, while also have the function that to cool down bristle, prevent bristle thermmohardening from crushing.
In scrubbing unit, the arrangement of brush roll is divided to two kinds of forms, and one kind is brush roll-brush roll type, i.e., brush roll is arranged up and down in pairs, and two groups are equipped with spray
The jet pipe of mouth group is respectively provided at strip by the both sides of line, it is necessary to be cooled down to upper brush roll and lower brush roll；Another kind be brush roll-
Support roll shape, i.e., using two groups of brush rolls and support roller, upper brush roll and lower brush roll interlaced arrangement up and down, two groups of sprays for being equipped with nozzle sets
Pipe is respectively provided at the side of brush roll, it is necessary to be cooled down to upper brush roll and lower brush roll, without to upper backup roll and lower backing roll
Cooled down.
Scrub in operation, with the consumption of brush roll bristle and the influence of other factors, brush roll can produce vibration and pressure（Or
In pressure）, cause strip also to change by line constantly.At scrub operation initial stage, nozzle sets can be to before brush roll and strip
Region is specified to carry out water-spraying control brush roll, after work operations are scrubbed for a period of time, strip can be with the vibration of brush roll by line
And pressure（Or in pressure）And shift, if the spray angle of nozzle sets immobilizes, cooling water cannot be sprayed onto brush
On the correct position of roller, the friction coefficient increase between such brush roll and strip, the grinding amount of bristle increases severely, and causes brush roll bristle
Inordinate wear, the brush roll vibration thus brought is larger, produces the noise of high-decibel, directly reduces the service life of brush roll, increases
Add production cost.
The content of the invention
The object of the present invention is to provide a kind of scrubbing unit nozzle angle automatic adjusting mechanism, which can lead to strip
The spray angle of the change automatic adjustment nozzle of line is crossed, so that the cooling water that nozzle sprays is sprayed onto the conjunction of brush roll and strip all the time
Region is managed, and then is effectively prevented from the generation of brush roll inordinate wear phenomenon, extends the service life of brush roll, reduces production cost.
The technical solution adopted in the present invention is：
A kind of scrubbing unit nozzle angle automatic adjusting mechanism, including it is located at brush roll（Bearing block）Or upper backup roll（Bearing
Seat）On upper guide bush, be located at lower brush roll（Bearing block）Or lower backing roll（Bearing block）On lower guide sleeve, guide rod and drive link, lead
By line, vertical and both ends are respectively provided in the groove of upper guide bush and lower guide sleeve bar with strip, and guide rod is equipped with passes through line with strip
Vertically and with axially in parallel guide groove, drive link one end it is equipped with inserted link, the other end and is connected with being equipped with the jet pipe of nozzle sets, is driven
The inserted link end of bar, which is swung, to drive jet pipe to rotate, and in the insertion guide groove that inserted link coordinates, what is coordinated on guide rod is cased with two pressures
The identical compression spring of contracting coefficient, what one end of two compression springs were respectively cooperating be located in the groove of upper guide bush and lower guide sleeve,
The other end is mutually separated by inserted link.
Further, when scrubbing unit nozzle angle automatic adjusting mechanism is applied when on brush roll-brush roll type scrubbing unit, use
One group of scrubbing unit nozzle angle automatic adjusting mechanism, wherein, upper guide bush and lower guide sleeve are respectively provided on brush roll and lower brush roll, are passed
Lever is connected with one of jet pipe, and 1# connecting rods are hinged with drive link, is hinged with 2# connecting rods on 1# connecting rods, 2# connecting rods with it is another
A jet pipe connection, the hinged end of 2# connecting rods swing and jet pipe can be driven to rotate.
Further, the axle center of two hinges on 1# connecting rods and two jet pipes surrounds parallelogram.
Further, when scrubbing unit nozzle angle automatic adjusting mechanism is applied when on brush roll-support roll shape scrubbing unit, adopt
With two groups of scrubbing unit nozzle angle automatic adjusting mechanisms, wherein, the upper guide bush of one group of scrubbing unit nozzle angle automatic adjusting mechanism
It is respectively provided at lower guide sleeve on upper brush roll and lower backing roll, drive link is connected with the jet pipe of corresponding upper brush roll, another group of scrubbing unit
The upper guide bush of nozzle angle automatic adjusting mechanism and lower guide sleeve are respectively provided on upper backup roll and lower brush roll, drive link with it is corresponding under
The jet pipe connection of brush roll.
The beneficial effects of the invention are as follows：
1. during normal work, two groups of compression springs and inserted link holding are stable, drive link is not swung, jet pipe does not rotate, strip
Maintain to stablize by line, nozzle sets spray to specified region of the strip by line；When brush roll produces vibration, pressure（Or in pressure）Cause
When strip is changed by line, upper brush roll（Or upper backup roll）With lower brush roll（Or lower backing roll）In the lift adjustment of scrubbing unit
Upper and lower action under the adjusting of device, when upper brush roll（Or upper backup roll）With lower brush roll（Or lower backing roll）At the same time upwards（Or to
Under）When mobile, strip is risen by line position（Or lower general）, inserted link rises under the action of spring is compressed along guide groove（Under or
Drop）, inserted link drive drive link swing, drive link drive jet pipe it is clockwise（Or counterclockwise）Rotation, the spray of adjust automatically nozzle sets
Firing angle degree, makes its eject position be in reasonable region of the strip by line；Needed at the same time to opposite side when due to bristle wear
To the upper brush roll of adjustment（Or upper backup roll）With lower brush roll（Or lower backing roll）When（At this time, strip is constant by line）, two compressions
The knots modification of spring is identical, and since the compressed coefficient is identical, so inserted link position is constant, i.e., spray angle is constant.
2. two jet pipes of brush roll-brush roll type scrubbing unit are respectively provided at both sides of the strip by line, drive link not only can be with
Directly drive a jet pipe to rotate, another jet pipe can also be driven to rotate by linkage.
3. using parallelogram linkage, it ensure that two jet pipe rotation angles are identical all the time.
4. brush roll-support roll shape uses two groups of brush rolls and support roller, distance is longer between two jet pipes and is blocked, therefore
Respectively set one group of scrubbing unit nozzle angle automatic adjusting mechanism.
Brief description of the drawings
Fig. 1 is that the embodiment of the present invention applies the schematic diagram on brush roll-brush roll type scrubbing unit.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is upper guide bush in the embodiment of the present invention, lower guide sleeve, guide rod, inserted link, drive link and the connection signal for compressing spring
Figure.
Fig. 4 is that the embodiment of the present invention applies the schematic diagram on brush roll-support roll shape scrubbing unit.
In figure：1- racks；2- upper guide bush；The upper brush rolls of 3-；4- drive links；5- inserted links；6-1# connecting rods；7- jet pipes；8-2# connects
Bar；Brush roll under 9-；10- guide grooves；Guide sleeve under 11-；12- compresses spring；13- guide rods；14- lower backing rolls；15- upper backup rolls.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of scrubbing unit nozzle angle automatic adjusting mechanism, including it is located at brush roll 3（Axis
Bearing）Or upper backup roll 15（Bearing block）On upper guide bush 2, be located at lower brush roll 9（Bearing block）Or lower backing roll 14（Bearing block）
On lower guide sleeve 11, guide rod 13 and drive link 4, guide rod 13 and strip by line vertical and both ends be respectively provided at upper guide bush 2 and under
In the groove of guide sleeve 11, guide rod 13 be equipped with strip it is vertical by line and with axially in parallel guide groove 10,4 one end of drive link
It is connected equipped with inserted link 5, the other end with the jet pipe 7 equipped with nozzle sets, 5 end of inserted link of drive link 4, which is swung, can drive jet pipe 7 to revolve
Turning, in the insertion guide groove 10 that inserted link 5 coordinates, what is coordinated on guide rod 13 is cased with the identical compression spring 12 of two compressed coefficients,
What one end of two compression springs 12 were respectively cooperating be located in the groove of upper guide bush 2 and lower guide sleeve 11, the other end passes through 5 phase of inserted link
Mutually separate.
During normal work, two groups of compression springs 12 and the holding of inserted link 5 are stable, drive link 4 is not swung, jet pipe 7 does not rotate, band
Steel maintains to stablize by line, and nozzle sets spray to specified region of the strip by line；When brush roll produces vibration, pressure（Or in pressure）Lead
When cause strip is changed by line, upper brush roll 3（Or upper backup roll 15）With lower brush roll 9（Or lower backing roll 14）In scrubbing unit
Upper and lower action under the adjusting of elevating adjusting device, when upper brush roll 3（Or upper backup roll 15）With lower brush roll 9（Or lower backing roll 14）
At the same time upwards（Or downwards）When mobile, strip is risen by line position（Or lower general）, the edge under the action of spring 12 is compressed of inserted link 5
Guide groove 10 rises（Or decline）, inserted link 5 drive drive link 4 swing, drive link 4 drive jet pipe 7 it is clockwise（Or counterclockwise）Rotation
Turn, the spray angle of adjust automatically nozzle sets, makes its eject position be in reasonable region of the strip by line；Ground when due to bristle
Damage needs to adjust upper brush roll 3 in the opposite direction at the same time（Or upper backup roll 15）With lower brush roll 9（Or lower backing roll 14）When（This
When, strip is constant by line）, the knots modification of two compression springs 12 is identical, since the compressed coefficient is identical, so 5 position of inserted link
Constant, i.e., spray angle is constant.
As shown in Figure 1, when scrubbing unit nozzle angle automatic adjusting mechanism is applied when on brush roll-brush roll type scrubbing unit, adopt
With one group of scrubbing unit nozzle angle automatic adjusting mechanism, wherein, upper guide bush 2 and lower guide sleeve 11 are respectively provided at brush roll 3 and lower brush
On roller 9, drive link 4 is connected with one of jet pipe 7, and 1# connecting rods 6 are hinged with drive link 4,2# connecting rods are hinged with 1# connecting rods 6
8,2# connecting rods 8 are connected with another jet pipe 7, and the hinged end of 2# connecting rods 8, which is swung, can drive jet pipe 7 to rotate.Brush roll-brush roll type brush
Two jet pipes 7 of washing machine are respectively provided at both sides of the strip by line, and drive link 4 not only can directly drive a jet pipe 7 to rotate,
Another jet pipe 7 can also be driven to rotate by linkage.
As shown in Figure 1, in the present embodiment, the axle center of two hinges and two jet pipes 7 on 1# connecting rods 6 surrounds parallel
Quadrangle.Using parallelogram linkage, it ensure that two 7 rotation angles of jet pipe are identical all the time.
As shown in figure 4, when scrubbing unit nozzle angle automatic adjusting mechanism is applied when on brush roll-support roll shape scrubbing unit,
Using two groups of scrubbing unit nozzle angle automatic adjusting mechanisms, wherein, led on one group of scrubbing unit nozzle angle automatic adjusting mechanism
Set 2 and lower guide sleeve 11 are respectively provided on brush roll 3 and lower backing roll 14, drive link 4 is connected with the jet pipe 7 of corresponding upper brush roll 3, separately
The upper guide bush 2 and lower guide sleeve 11 of one group of scrubbing unit nozzle angle automatic adjusting mechanism are respectively provided at upper backup roll 15 and lower brush roll 9
Upper, drive link 4 is connected with the jet pipe 7 of corresponding lower brush roll 9.Brush roll-support roll shape uses two groups of brush rolls and support roller, two jet pipes
Distance is longer between 7 and is blocked, therefore respectively sets one group of scrubbing unit nozzle angle automatic adjusting mechanism.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (4)
- A kind of 1. scrubbing unit nozzle angle automatic adjusting mechanism, it is characterised in that：Including being located at the upper of upper brush roll or upper backup roll Guide sleeve, lower guide sleeve, guide rod and the drive link being located on lower brush roll or lower backing roll, guide rod with strip by line, divide by vertical and both ends Be not located in the groove of upper guide bush and lower guide sleeve, guide rod be equipped with strip it is vertical by line and with axially in parallel guide groove, Drive link one end is equipped with inserted link, the other end is connected with the jet pipe equipped with nozzle sets, and the inserted link end of drive link, which is swung, can drive spray Pipe rotates, and in the insertion guide groove that inserted link coordinates, what is coordinated on guide rod is cased with the identical compression spring of two compressed coefficients, two What one end of compression spring was respectively cooperating be located in the groove of upper guide bush and lower guide sleeve, the other end is mutually separated by inserted link.
- 2. scrubbing unit nozzle angle automatic adjusting mechanism as claimed in claim 1, it is characterised in that：When scrubbing unit nozzle angle Automatic adjusting mechanism is applied when on brush roll-brush roll type scrubbing unit, using one group of scrubbing unit nozzle angle automatic adjusting mechanism, its In, upper guide bush and lower guide sleeve are respectively provided on brush roll and lower brush roll, and drive link is connected with one of jet pipe, is cut with scissors on drive link 1# connecting rods are connected to, 2# connecting rods are hinged with 1# connecting rods, 2# connecting rods are connected with another jet pipe, and the hinged ends of 2# connecting rods is swung can be with Drive jet pipe rotation.
- 3. scrubbing unit nozzle angle automatic adjusting mechanism as claimed in claim 2, it is characterised in that：Two hinges on 1# connecting rods The axle center of point and two jet pipes surrounds parallelogram.
- 4. scrubbing unit nozzle angle automatic adjusting mechanism as claimed in claim 1, it is characterised in that：When scrubbing unit nozzle angle Automatic adjusting mechanism is applied when on brush roll-support roll shape scrubbing unit, using two groups of scrubbing unit nozzle angle automatic adjusting mechanisms, Wherein, the upper guide bush of one group of scrubbing unit nozzle angle automatic adjusting mechanism and lower guide sleeve are respectively provided at brush roll and lower backing roll Upper, drive link is connected with the jet pipe of corresponding upper brush roll, and the upper guide bush of another group of scrubbing unit nozzle angle automatic adjusting mechanism is with Guide sleeve is respectively provided on upper backup roll and lower brush roll, drive link is connected with the jet pipe of corresponding lower brush roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277073.4A CN105921531B (en) | 2016-04-30 | 2016-04-30 | Scrubbing unit nozzle angle automatic adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277073.4A CN105921531B (en) | 2016-04-30 | 2016-04-30 | Scrubbing unit nozzle angle automatic adjusting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105921531A CN105921531A (en) | 2016-09-07 |
| CN105921531B true CN105921531B (en) | 2018-04-17 |
Family
ID=56837576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610277073.4A Active CN105921531B (en) | 2016-04-30 | 2016-04-30 | Scrubbing unit nozzle angle automatic adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105921531B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57168721A (en) * | 1981-04-10 | 1982-10-18 | Nisshin Steel Co Ltd | Method and device for brushing of pickled steel plate |
| JPH10146611A (en) * | 1996-11-14 | 1998-06-02 | Nikko Kinzoku Kk | Wiper device |
| JPH10265987A (en) * | 1997-03-24 | 1998-10-06 | Kawasaki Steel Corp | Spraying device for washing metallic strip |
| EP0995504A2 (en) * | 1998-10-20 | 2000-04-26 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method and device for cleaning rolls and/or rollers in strip casting installations, rolling mills and/or strip processing lines, in particular skin pass mills or similar sizing mills |
| CN202606472U (en) * | 2012-04-13 | 2012-12-19 | 中冶南方工程技术有限公司 | Automatic adjusting device of optimum jet angle of nozzles of pair-brushing brush roll |
| CN203256345U (en) * | 2013-04-24 | 2013-10-30 | 中冶南方工程技术有限公司 | Automatic adjustment device for angles of spray nozzles of paired brush roll |
| CN203256346U (en) * | 2013-04-24 | 2013-10-30 | 中冶南方工程技术有限公司 | Automatic adjustment device for angles of spray nozzles of single brush roll |
| CN203304219U (en) * | 2013-05-29 | 2013-11-27 | 河南恒安电力科技实业有限公司 | Electrified cleaning spray gun with adjustable angle |
| EP2770161A1 (en) * | 2013-02-20 | 2014-08-27 | EM Holding GmbH & Co. KG | Development and rehabilitation of wells and springs by a rotary nozzle device with angle adjustable nozzles |
| CN205056664U (en) * | 2015-10-08 | 2016-03-02 | 中冶南方工程技术有限公司 | Scrubbing unit |
-
2016
- 2016-04-30 CN CN201610277073.4A patent/CN105921531B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57168721A (en) * | 1981-04-10 | 1982-10-18 | Nisshin Steel Co Ltd | Method and device for brushing of pickled steel plate |
| JPH10146611A (en) * | 1996-11-14 | 1998-06-02 | Nikko Kinzoku Kk | Wiper device |
| JPH10265987A (en) * | 1997-03-24 | 1998-10-06 | Kawasaki Steel Corp | Spraying device for washing metallic strip |
| EP0995504A2 (en) * | 1998-10-20 | 2000-04-26 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method and device for cleaning rolls and/or rollers in strip casting installations, rolling mills and/or strip processing lines, in particular skin pass mills or similar sizing mills |
| CN202606472U (en) * | 2012-04-13 | 2012-12-19 | 中冶南方工程技术有限公司 | Automatic adjusting device of optimum jet angle of nozzles of pair-brushing brush roll |
| EP2770161A1 (en) * | 2013-02-20 | 2014-08-27 | EM Holding GmbH & Co. KG | Development and rehabilitation of wells and springs by a rotary nozzle device with angle adjustable nozzles |
| CN203256345U (en) * | 2013-04-24 | 2013-10-30 | 中冶南方工程技术有限公司 | Automatic adjustment device for angles of spray nozzles of paired brush roll |
| CN203256346U (en) * | 2013-04-24 | 2013-10-30 | 中冶南方工程技术有限公司 | Automatic adjustment device for angles of spray nozzles of single brush roll |
| CN203304219U (en) * | 2013-05-29 | 2013-11-27 | 河南恒安电力科技实业有限公司 | Electrified cleaning spray gun with adjustable angle |
| CN205056664U (en) * | 2015-10-08 | 2016-03-02 | 中冶南方工程技术有限公司 | Scrubbing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105921531A (en) | 2016-09-07 |
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