CN106319148B - Automatic Link Establishment and its application method for blowing cast slag gun pipette tips - Google Patents
Automatic Link Establishment and its application method for blowing cast slag gun pipette tips Download PDFInfo
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- CN106319148B CN106319148B CN201510664087.7A CN201510664087A CN106319148B CN 106319148 B CN106319148 B CN 106319148B CN 201510664087 A CN201510664087 A CN 201510664087A CN 106319148 B CN106319148 B CN 106319148B
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- pipette tips
- gun barrel
- section
- fixed
- connector
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/005—Removing slag from a molten metal surface
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Golf Clubs (AREA)
Abstract
The present invention relates to the skimming apparatus field of molten metal, specially a kind of Automatic Link Establishment and its application method for blowing cast slag gun pipette tips.A kind of Automatic Link Establishment for blowing cast slag gun pipette tips, including gun barrel lifting device (1), it is characterized in that: further including pipette tips attachment device (2), gun barrel lifting device (1) includes lift cart (11), rotary driver (12) and bearing group (13)；Pipette tips attachment device (2) includes gun barrel substrate (21), gun barrel fastener (22) and pipette tips connector (23).A kind of Automatic Link Establishment for blowing cast slag gun pipette tips and its application method, it is characterized in that: implementing as follows: preparing；Installation；Disassembly.The configuration of the present invention is simple, convenient for disassembly and assembly, time-consuming is few, and employment is few, at low cost.
Description
Technical field
The present invention relates to field, specially a kind of Automatic Link Establishment and its user for blowing cast slag gun pipette tips
Method.
Background technique
In steel desulfurization process, steel slag must be removed out of ladle, to prevent the harmful element in slag from backing into molten steel.
For a long time, it skims and relies primarily on operator's manual work, depth of skimming takes off the quantity of slag all according to the experience control of operator
System, homework precision are difficult to control, and perhaps skim and molten iron deficiency of losing or skim excessively is easy to cause to lead to molten steel harmful element
It is exceeded.Operation of skimming at present begins to use blowing cast slag gun to implement, i.e., when needing to skim, with special air gun into ladle one
The molten steel surface of side blows out inert gas, assembles steel slag to slag notch side, thus enable skimming tool efficiently, be rapidly completed
It skims；This do mechanization operation substantially increases homework precision compared with manual operation, and without adding Slag conglomeration agent when operation,
Process cost can be reduced.The connection of flange bolt is used between the gun barrel of existing blowing cast slag gun and the pipette tips with refractory material
Mode.Because of live blowing slag-removing process hot environment, and it is serious to splash slag, need to be dedicated with sharing with more people when this connection type is installed
Lifting appliance is sling, and after artificial centering, bolt is fixed, and when installation is difficult, cumbersome, time-consuming, laborious, needs special equipment and more people
Compounding practice；When disassembly has used pipette tips, dead pipette tips are glued to prevent from splashing slag, need to wrap up fire- resistance cloth outside flange, in fire resisting
It wraps up fire clay outside cloth, after when disassembly such as needs cooling at the conditions of high temperature, after knocking out fire clay and removing fire- resistance cloth, could dismantle tightly
Then fixing bolt is hung away by special equipment.The complexity of flanged joint bring installation and removal largely reduced the suitable of equipment
With property, the popularization of equipment is affected.
Summary of the invention
In order to overcome the drawbacks of the prior art, provide that a kind of structure is simple, convenient for disassembly and assembly, time-consuming less, employment is few, at low cost
Handling facilities, the invention discloses a kind of Automatic Link Establishments and its application method for blowing cast slag gun pipette tips.
The present invention reaches goal of the invention by following technical solution:
A kind of Automatic Link Establishment for blowing cast slag gun pipette tips, including gun barrel lifting device, it is characterized in that: further including
Pipette tips attachment device,
Gun barrel lifting device includes lift cart, rotary driver and bearing group, and rotary driver is fixed on lift cart
One end, bearing group includes at least two bearings, and the outer ring of each bearing of bearing group is sequentially fixed on lift cart, axis
The inner ring for holding each bearing of group is successively bound round in the tail portion of gun barrel, and the output shaft of rotary driver and the tail end of gun barrel are fixed；
Pipette tips attachment device includes gun barrel substrate, gun barrel fastener and pipette tips connector, gun barrel substrate include external seal section and
Outer guide section, external seal section and outer guide section be all it is tubular, the top of outer guide section is fixed on the bottom end of external seal section, gun barrel button
Part is flange shape, is provided with internal screw thread on the inner sidewall of gun barrel fastener neck flange, is provided on the lower surface on gun barrel fastener flange chassis
Card slot；Pipette tips connector includes interior guide section, interior seal section, tightening slot and fixed section, interior guide section, interior seal section, tightening slot
This is sequentially connected in such a way that central axis mutually coincides with fixed section, and interior guide section is conical or truncated cone-shaped, interior close
Envelope section and tightening slot are all cylinder, and the upper surface of interior seal section is fixed on the big nose circle bottom surface of interior guide section, tightening slot
Upper surface is fixed on the lower surface of interior seal section, and fixed section is flange shape, and the through-hole of fixed section is internal thread hole, fixed section method
The top of blue neck is fixed on the lower surface of tightening slot, and the outer diameter of tightening slot is less than the outer diameter of interior seal section, the outer diameter of tightening slot
Again smaller than the outer diameter of fixed section neck flange, the outer diameter of interior seal section and the internal diameter of external seal section form transition fit, fixed section method
External screw thread is provided on the lateral wall of blue neck；
The top of gun barrel substrate external seal section is fixed on the top of gun barrel, and pipette tips are fixed on pipette tips connector fixed section flange
Internal thread hole in, pipette tips connector be inserted into gun barrel substrate in, holding screw penetrates from the side wall of gun barrel substrate and withstands on rifle
On the lateral surface of head connector tightening slot.
The Automatic Link Establishment for blowing cast slag gun pipette tips, it is characterized in that: the taper of interior guide section be 0.4~
0.8；External screw thread on pipette tips connector fixed section neck flange lateral wall is the multi start thread that line number is no less than 2, gun barrel fastener method
Internal screw thread on blue neck inner sidewall is the multi start thread that line number is no less than 2；It is adopted between pipette tips and pipette tips connector fixed section flange
It is threadedly coupled.
The Automatic Link Establishment for blowing cast slag gun pipette tips, it is characterized in that: rotary driver, which is selected, swings gas
Any one in cylinder, oscillating oil cylinder, electric cylinder and motor.
The present invention in use, implement as follows:
Prepare: the tail portion of gun barrel being sequentially passed through to the inner ring of each bearing of bearing group, makes the inner ring of each bearing of bearing group
It successively binds round in the tail portion of gun barrel, the output shaft of rotary driver and the tail end of gun barrel are fixed, the top of gun barrel substrate external seal section
It is fixed on the top of gun barrel, gun barrel fastener is fixed by bolts on the bottom face of outer guide section, and pipette tips are fixed on pipette tips connector
In the through-hole of fixed section flange；
Installation: the outer guide section of gun barrel substrate and the interior guide section of pipette tips connector cooperate after lift cart decline, make rifle
Head connector is inserted into gun barrel substrate, rotates forward rotary driver certain angle (45 °~90 °), makes pipette tips connector fixed section
Internal screw thread engagement on screw thread and gun barrel fastener neck flange inner sidewall on neck flange lateral wall, interior seal section insertion is outer close at this time
It seals in section, the transition fit of interior seal section and external seal section had not only played the role of radially fixed but also played sealing function, gun barrel fastener
Flange chassis and the flange chassis of pipette tips connector fixed section mutually fit, the work of stop position is played on the flange chassis of fixed section
With gun barrel fastener and pipette tips connector mutually fit and not only play the role of axially fastening but also playing sealing function, then by clamp screw
Nail is penetrated from the side wall of gun barrel substrate and is withstood on the lateral surface of pipette tips connector tightening slot, prevents from causing because of vibration unexpected de-
From completion installation process；
Disassembly: first screwing out holding screw, and subsequently reverse direction rotates rotary driver, pipette tips connector fixed section neck flange outside
The internal screw thread on screw thread and gun barrel fastener neck flange inner sidewall on wall progressively disengages, to extract pipette tips connector, and unloads
Pipette tips.
The invention has the following beneficial effects:
1. saving manpower: by originally needing three people installation can be completed to one to tear open with merging to reduce using special equipment
Dress process；
2. easy to operate: automatic aligning can be achieved, it is automatic to install, greatly facilitate operation；
3. saving the time: the set-up time was shorten to 2 minutes by original 45 minutes；
4. saving cost: saving the materials such as pipette tips consumptive material flange, fire- resistance cloth, fire clay, it can be used repeatedly.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the partial enlarged view of part A in Fig. 1；
Fig. 3 is the B-B direction cross-sectional view in Fig. 2.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
Embodiment 1
A kind of Automatic Link Establishment for blowing cast slag gun pipette tips, including gun barrel lifting device 1 and pipette tips attachment device
2, as shown, specific structure is:
Gun barrel lifting device 1 includes lift cart 11, rotary driver 12 and bearing group 13, and rotary driver 12 is fixed on
One end of lift cart 11, bearing group 13 include at least two bearings, and the outer ring of each bearing of bearing group 13 is successively fixed
On lift cart 11, the inner ring of each bearing of bearing group 13 is successively bound round in the tail portion of gun barrel 41, the output of rotary driver 12
The tail end of axis and gun barrel 41 is fixed；
Pipette tips attachment device 2 includes gun barrel substrate 21, gun barrel fastener 22 and pipette tips connector 23, and gun barrel substrate 21 includes outer
All to be tubular, the top of outer guide section 212 is fixed for seal section 211 and outer guide section 212, external seal section 211 and outer guide section 212
In the bottom end of outer seal section 211, gun barrel fastener 22 is flange shape, is provided with internal screw thread on the inner sidewall of 22 neck flange of gun barrel fastener,
Card slot is provided on the lower surface on 213 flange chassis of gun barrel fastener；Pipette tips connector 23 includes interior guide section 231, interior seal section
232, tightening slot 233 and fixed section 234, interior guide section 231, interior seal section 232, tightening slot 233 and fixed section 234 this with
The mode that central axis mutually coincides is sequentially connected, and interior guide section 231 is cone or truncated cone-shaped, interior seal section 232 and tightening
Slot 233 is all cylinder, and the upper surface of interior seal section 232 is fixed on the big nose circle bottom surface of interior guide section 231, tightening slot 233
Upper surface be fixed on the lower surface of interior seal section 232, fixed section 234 is flange shape, and the through-hole of fixed section 234 is internal screw thread
The top in hole, 234 neck flange of fixed section is fixed on the lower surface of tightening slot 233, and the outer diameter of tightening slot 233 is less than interior seal section
232 outer diameter, the outer diameter of the outer diameter of tightening slot 233 again smaller than 234 neck flange of fixed section, the outer diameter of interior seal section 232 and outer close
The internal diameter for sealing section 211 forms transition fit, is provided with external screw thread on the lateral wall of 234 neck flange of fixed section；
The top of 21 external seal section 211 of gun barrel substrate is fixed on the top of gun barrel 41, and pipette tips 42 are fixed on pipette tips connector
In the internal thread hole of 23 fixed section, 234 flange, pipette tips connector 23 is inserted into gun barrel substrate 21, and holding screw 3 is from gun barrel substrate
It penetrates and is withstood on the lateral surface of 23 tightening slot 233 of pipette tips connector on 21 side wall.
The taper of interior guide section 231 is 0.4~0.8, and the present embodiment takes 0.5；23 fixed section of pipette tips connector, 234 neck flange
External screw thread on lateral wall is the multi start thread that line number is no less than 2, and the present embodiment takes three line external screw threads, gun barrel fastener (22) flange
Internal screw thread on neck inner sidewall is the multi start thread that line number is no less than 2, and the present embodiment takes three line internal screw threads；Pipette tips in the present embodiment
Using threaded connection between 42 and 23 fixed section of pipette tips connector, 234 flange；Rotary driver 12 selects oscillating cylinder, swings oil
Any one in cylinder, electric cylinder and motor, the present embodiment select oscillating cylinder.
The present embodiment in use, implement as follows:
Prepare: the tail portion of gun barrel 41 being sequentially passed through to the inner ring of each bearing of bearing group 13, makes each bearing of bearing group 13
Inner ring successively bind round in the tail portion of gun barrel 41, the output shaft of rotary driver 12 and the tail end of gun barrel 41 are fixed, gun barrel substrate 21
The top of external seal section 211 is fixed on the top of gun barrel 41, and gun barrel fastener 22 is fixed by bolts to the bottom face of outer guide section 212
On, pipette tips 42 are fixed in the through-hole of 23 fixed section of pipette tips connector, 234 flange；
Installation: the interior guide section of the outer guide section 212 of gun barrel substrate 21 and pipette tips connector 23 after lift cart 11 declines
231 cooperations, make pipette tips connector 23 be inserted into gun barrel substrate 21, rotate forward 12 certain angle of rotary driver (45 °~90 °),
Make interior on the 22 neck flange inner sidewall of multi start thread and gun barrel fastener on 23 fixed section of pipette tips connector, 234 neck flange lateral wall
Screw thread engagement, interior seal section 232 is inserted into external seal section 211 at this time, the transition fit of interior seal section 232 and external seal section 211
Not only played the role of radially fixed but also played sealing function, 23 fixed section 234 of flange chassis and pipette tips connector of gun barrel fastener 22
Flange chassis mutually fit blending bolt fastening, stop position, 22 He of gun barrel fastener are played in the flange chassis of fixed section 234
Pipette tips connector 23 mutually fits and not only plays the role of axially fastening but also play sealing function, then by holding screw 3 from gun barrel base
It penetrates and is withstood on the lateral surface of 23 tightening slot 233 of pipette tips connector on the side wall of part 21, prevent from causing to undesirably fall off because of vibration,
Complete installation process；
Disassembly: first screwing out holding screw, and subsequently reverse direction rotates rotary driver 12,23 fixed section of pipette tips connector, 234 method
The internal screw thread on 22 neck flange inner sidewall of multi start thread and gun barrel fastener on blue neck lateral wall progressively disengages, to extract pipette tips
Connector 23, and unload pipette tips 42.
Claims (5)
1. a kind of Automatic Link Establishment for blowing cast slag gun pipette tips, including gun barrel lifting device (1), it is characterized in that: also wrapping
Pipette tips attachment device (2) are included,
Gun barrel lifting device (1) includes lift cart (11), rotary driver (12) and bearing group (13), rotary driver (12)
Be fixed on one end of lift cart (11), bearing group (13) includes at least two bearings, each bearing of bearing group (13) it is outer
Circle is all sequentially fixed on lift cart (11), and the inner ring of bearing group (13) each bearing is successively bound round in the tail portion of gun barrel (41),
The output shaft of rotary driver (12) and the tail end of gun barrel (41) are fixed；
Pipette tips attachment device (2) includes gun barrel substrate (21), gun barrel fastener (22) and pipette tips connector (23), gun barrel substrate (21)
Including external seal section (211) and outer guide section (212), external seal section (211) and outer guide section (212) are all tubular, outer guiding
The top of section (212) is fixed on the bottom end of external seal section (211), and internal thread hole is along the circumferential direction opened in outer guide section (212) bottom,
Gun barrel fastener (22) is flange shape, is provided with internal screw thread at the center of gun barrel fastener (22) neck flange, circumferentially opens bolt hole, rifle
Card slot is provided on the lower surface on tube clamps (22) flange chassis；The top of gun barrel fastener (22) neck flange is bolted leads outside
To on the bottom face of section (212), pipette tips connector (23) includes interior guide section (231), interior seal section (232), tightening slot (233)
With fixed section (234), interior guide section (231), interior seal section (232), tightening slot (233) and fixed section (234) this in
The mode that mandrel line mutually coincides is sequentially connected, interior guide section (231) be cone or truncated cone-shaped, interior seal section (232) and tightly
Determining slot (233) all is cylinder, and the upper surface of interior seal section (232) is fixed on the big nose circle bottom surface of interior guide section (231), tightly
The upper surface for determining slot (233) is fixed on the lower surface of interior seal section (232), and fixed section (234) is flange shape, pipette tips connector
(23) centre bore is opened, the through-hole at fixed section (234) is internal thread hole, and the top of fixed section (234) neck flange is fixed on tightening
On the lower surface of slot (233), the outer diameter of tightening slot (233) is less than the outer diameter of interior seal section (232), the outer diameter of tightening slot (233)
Again smaller than the outer diameter of fixed section (234) neck flange, the outer diameter of interior seal section (232) and the internal diameter of external seal section (211) were formed
Cooperation is crossed, is provided with external screw thread on the lateral wall of fixed section (234) neck flange；
The top of gun barrel substrate (21) external seal section (211) is fixed on the top of gun barrel (41), and pipette tips (42) are fixed on pipette tips company
In the internal thread hole of fitting (23) fixed section (234) flange, pipette tips connector (23) is inserted into gun barrel substrate (21), holding screw
(3) it penetrates and is withstood on the lateral surface of pipette tips connector (23) tightening slot (233) from the side wall of gun barrel substrate (21).
2. the Automatic Link Establishment of blowing cast slag gun pipette tips is used for as described in claim 1, it is characterized in that: interior guide section
(231) taper is 0.4~0.8；External screw thread on pipette tips connector (23) fixed section (234) neck flange lateral wall be line number not
Multi start thread less than 2, the internal screw thread on gun barrel fastener (22) neck flange inner sidewall are the multi start thread that line number is no less than 2；Rifle
Using threaded connection between head (42) and pipette tips connector (23) fixed section (234) flange.
3. the Automatic Link Establishment of blowing cast slag gun pipette tips is used for as claimed in claim 1 or 2, it is characterized in that: rotate driving
Device (12) selects any one in oscillating cylinder, oscillating oil cylinder, electric cylinder and motor.
4. the application method for the Automatic Link Establishment of blowing cast slag gun pipette tips as claimed in claim 1 or 2, feature
It is: implements as follows:
Prepare: the tail portion of gun barrel (41) being sequentially passed through to the inner ring of bearing group (13) each bearing, makes bearing group (13) each axis
The inner ring held successively binds round the tail portion in gun barrel (41), and the output shaft of rotary driver (12) and the tail end of gun barrel (41) are fixed, rifle
The top of pipe substrate (21) external seal section (211) is fixed on the top of gun barrel (41), and gun barrel fastener (22) is fixed by bolts to outer
On the bottom face of guide section (212), pipette tips (42) are fixed in the through-hole of pipette tips connector (23) fixed section (234) flange；
Installation: it is led in the outer guide section (212) of gun barrel substrate (21) and pipette tips connector (23) after lift cart (11) decline
Cooperate to section (231), so that pipette tips connector (23) is inserted into gun barrel substrate (21), rotate forward rotary driver (12), make pipette tips
The internal screw thread on screw thread and gun barrel fastener (22) neck flange inner sidewall on connector (23) fixed section (234) neck flange lateral wall
Engagement, at this time in interior seal section (232) insertion external seal section (211), the flange chassis of gun barrel fastener (22) and pipette tips connector
(23) the flange chassis of fixed section (234) mutually fits, and then penetrates holding screw (3) from the side wall of gun barrel substrate (21)
And withstand on the lateral surface of pipette tips connector (23) tightening slot (233), it prevents from causing to undesirably fall off because of vibration, completion was installed
Journey；
Disassembly: first screwing out holding screw, and subsequently reverse direction rotates rotary driver (12), pipette tips connector (23) fixed section (234)
The internal screw thread on screw thread and gun barrel fastener (22) neck flange inner sidewall on neck flange lateral wall progressively disengages, to extract pipette tips
Connector (23), and unload pipette tips (42).
5. the application method for the Automatic Link Establishment of blowing cast slag gun pipette tips as claimed in claim 3, it is characterized in that: pressing
Following steps are implemented:
Prepare: the tail portion of gun barrel (41) being sequentially passed through to the inner ring of bearing group (13) each bearing, makes bearing group (13) each axis
The inner ring held successively binds round the tail portion in gun barrel (41), and the output shaft of rotary driver (12) and the tail end of gun barrel (41) are fixed, rifle
The top of pipe substrate (21) external seal section (211) is fixed on the top of gun barrel (41), and gun barrel fastener (22) is fixed by bolts to outer
On the bottom face of guide section (212), pipette tips (42) are fixed in the through-hole of pipette tips connector (23) fixed section (234) flange；
Installation: it is led in the outer guide section (212) of gun barrel substrate (21) and pipette tips connector (23) after lift cart (11) decline
Cooperate to section (231), so that pipette tips connector (23) is inserted into gun barrel substrate (21), rotate forward rotary driver (12), make pipette tips
The internal screw thread on screw thread and gun barrel fastener (22) neck flange inner sidewall on connector (23) fixed section (234) neck flange lateral wall
Engagement, at this time in interior seal section (232) insertion external seal section (211), the flange chassis of gun barrel fastener (22) and pipette tips connector
(23) the flange chassis of fixed section (234) mutually fits, and then penetrates holding screw (3) from the side wall of gun barrel substrate (21)
And withstand on the lateral surface of pipette tips connector (23) tightening slot (233), it prevents from causing to undesirably fall off because of vibration, completion was installed
Journey；
Disassembly: first screwing out holding screw, and subsequently reverse direction rotates rotary driver (12), pipette tips connector (23) fixed section (234)
The internal screw thread on screw thread and gun barrel fastener (22) neck flange inner sidewall on neck flange lateral wall progressively disengages, to extract pipette tips
Connector (23), and unload pipette tips (42).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371488 | 2015-06-30 | ||
| CN2015103714883 | 2015-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106319148A CN106319148A (en) | 2017-01-11 |
| CN106319148B true CN106319148B (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510664087.7A Active CN106319148B (en) | 2015-06-30 | 2015-10-15 | Automatic Link Establishment and its application method for blowing cast slag gun pipette tips |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113528718B (en) * | 2021-06-02 | 2022-06-07 | 镇江市坤洋冶金设备有限公司 | Automatic connecting device for gun head of air blowing slag removing gun |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928801A (en) * | 2010-09-02 | 2010-12-29 | 宝钢工程技术集团有限公司 | Blowing slag-removing equipment for molten iron pretreatment |
| CN102382922A (en) * | 2010-08-31 | 2012-03-21 | 上海梅山钢铁股份有限公司 | Gas-blowing and slag-removing device and slag-removing method |
| CN202984657U (en) * | 2012-11-30 | 2013-06-12 | 宝钢工程技术集团有限公司 | Rotatable blowing dreg removing device |
| CN204311083U (en) * | 2014-11-28 | 2015-05-06 | 鞍钢股份有限公司 | Combined air gun for slagging-off of molten iron |
-
2015
- 2015-10-15 CN CN201510664087.7A patent/CN106319148B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382922A (en) * | 2010-08-31 | 2012-03-21 | 上海梅山钢铁股份有限公司 | Gas-blowing and slag-removing device and slag-removing method |
| CN101928801A (en) * | 2010-09-02 | 2010-12-29 | 宝钢工程技术集团有限公司 | Blowing slag-removing equipment for molten iron pretreatment |
| CN202984657U (en) * | 2012-11-30 | 2013-06-12 | 宝钢工程技术集团有限公司 | Rotatable blowing dreg removing device |
| CN204311083U (en) * | 2014-11-28 | 2015-05-06 | 鞍钢股份有限公司 | Combined air gun for slagging-off of molten iron |
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| Publication number | Publication date |
|---|---|
| CN106319148A (en) | 2017-01-11 |
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