CN107385143A - A kind of converter tapping protection device and method - Google Patents
A kind of converter tapping protection device and method Download PDFInfo
- Publication number
- CN107385143A CN107385143A CN201710486629.5A CN201710486629A CN107385143A CN 107385143 A CN107385143 A CN 107385143A CN 201710486629 A CN201710486629 A CN 201710486629A CN 107385143 A CN107385143 A CN 107385143A
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- China
- Prior art keywords
- converter
- river
- mouth
- tapping
- section
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Classifications
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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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4653—Tapholes; Opening or plugging thereof
-
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention provides a kind of converter tapping protection device, including slide plate mop (4), the converter protection mouth of a river (5)；The installation through-hole for installing converter tapping hole (3) is provided with slide plate mop (4) center；Slide plate mop (4) both sides are respectively equipped with a slideway；The sliding panel (511) of the converter protection mouth of a river (5) upper end is installed in the slideway of the slide plate mop (4), can be reciprocatingly slided along slideway；The converter protection mouth of a river (5) lower end is stretched into the molten steel (9) of ladle (7)；The installation through-hole diameter identical through hole with the slide plate mop (4) is provided with sliding panel (511).The present invention forms one between ladle and converter taphole and closed goes out steel conduit, change the tapping mode of conventional bareing, while effective reduction tapping slag is with tapping temperature drop, both molten steel stream stock can have been concentrated to improve effective stirring to alloy in ladle, can completely cut off contact of the molten steel stream stock with air again prevents molten steel air-breathing.
Description
Technical field
The present invention relates to field of steel-making, especially a kind of converter tapping protection device and method.
Background technology
With the development of steel-smelting technology, the smelting of clean steel has become the trend of steel-making development.Evaluate the cleanliness factor of steel
Leading indicator be oxygen and other gas contents in steel.To improve the cleanliness factor of steel, to meet specific steel grade complicated ingredient and spy
The smelting requirements of constant temperature degree, add in steelmaking process and be mingled with including deoxidation and going, heat up and the work such as alloying, degassing and decarburization
Sequence.
Pneumatic steelmaking is as most important process for making, and in worldwide, steel-making accounting is up to more than 80%.It is full
The demand that the specific steel grade of foot is smelted, pneumatic steelmaking is born provides temperature and times of the suitable molten steel of composition for subsequent handling
Business.In conventional converter steelmaking process, after smelting endpoint composition and temperature are up to standard, subsequent handling is brought to reduce converter slag
Harmful effect, pneumatic dreg blocking tapping, slide plate slag-stopping tapping and slag retaining cone or skimming ball are divided into according to the difference of tapping pushing off the slag mode
Slag-stopping tapping；
Patent CN201210195383.3 provides a kind of converter furnace sliding plate method slag-stopping tapping device, and device is logical to include installation
Plate, doorframe and drive device, drive device are connected and provided the power that slide plate vertically reciprocatingly slides with slide plate one end,
It is completely obscured state when molten steel mouth is located at hollow out limes superiors, is fully switched on shape when molten steel mouth is located at hollow out limit inferior
State, when molten steel mouth is not located at hollow out limes superiors and limit inferior for it is fully switched on it is completely obscured between state.
Patent CN201520355538.4 provides a kind of slag blocking stopper for steel tapping from converter head, and the pushing off the slag chock plug is that outside is resistance to
The centrum of fiery material, pushing off the slag chock plug blocks tapping hole before tapping；After molten steel face is higher by tapping hole certain distance, pushing off the slag chock plug moves
From tapping hole, molten steel is allowed to flow out；When beginning with clinker outflow in the later stage of tapping, pushing off the slag chock plug blocks tapping hole, prevents clinker stream
Go out.
Converter taphole is the unique passage that molten steel is entered ladle by converter.During tapping, high-temperature molten steel, clinker are born
Friction is washed away and oxidative attack, causes the tapping hole life-span very low, it is necessary to constantly repair and change, so as to can not only influence to produce
Cycle, and have influence on steel quality and production stability.
Converter tapping above simply uses various pushing off the slag modes to reduce the quantity of slag under tapping process converter slag, but not
Heat losses and air-breathing in view of reducing molten steel stream in tapping process, and the loss of molten steel temperature is needed with air-breathing to improve out
Steel temperature, refining heating make up with modes such as degassings.
The content of the invention
It is an object of the invention to provide a kind of converter tapping protection device, solves molten steel heat loss in converter tapping process and leads
The problem of causing temperature reduction and easily air-breathing oxidation.
Specifically, the invention provides a kind of converter tapping protection device, including slide plate mop, the converter protection mouth of a river and
Mechanical arm；
The installation through-hole for installing converter tapping hole is provided with slide plate mop center；Slide plate mop both sides are set respectively
There is a slideway；
The sliding panel of converter protection mouth of a river upper end is installed in the slideway of slide plate mop, can be reciprocatingly slided along slideway；Turn
Stove protection mouth of a river lower end is stretched into the molten steel of ladle；
The installation through-hole diameter identical through hole with slide plate mop is provided with sliding panel；
Mechanical arm is installed on buggy ladle, for fixing the converter protection mouth of a river.
Further, slide plate mop includes mainboard, the first bottom plate, the second bottom plate；
Mainboard is cuboid plate, and the installation through-hole for installing converter tapping hole is provided with center；
First bottom plate, the second bottom plate are L shaped plate, including riser and transverse slat；Along mainboard width, the first bottom plate and
The riser of two bottom plates is individually fixed in the lower section of mainboard both sides, forms a slideway respectively in the both sides of the lower section of mainboard.
Further, the converter protection mouth of a river includes saving under section and the mouth of a river on the mouth of a river；
Section includes sliding panel and upper section pipe on the mouth of a river；
Upper section pipe is fixed on the through hole of the sliding panel；
What upper section pipe was mounted at saving under the mouth of a river extends out in section.
Further, sliding panel is between cuboid plate, width and the first bottom plate and the riser inner surface of the second bottom plate
Apart from identical, length is identical with the length of mainboard, and along the rectangular direction of sliding panel itself, there are rectangular recess, rectangular recess in one end
With the rectangular preiection Matching installation of mainboard, sliding panel is installed in the slideway of lower section both sides of mainboard, can be along the length side of mainboard
Reciprocatingly slided in slideway.
Further, upper section pipe is pipe, and the through hole of sliding panel is fixed in one end, and the other end is circular arc and inside contracted
Structure.
Further, section includes extending out section and direct tube section under the mouth of a river；
It is hollow truncated cone-shaped to extend out section, and the small one end of diameter docks fixation with direct tube section；
Direct tube section is one section of pipe.
Further, the circular arc end of upper section pipe is installed on extending out in section of being saved under the mouth of a river, can be with the inwall for extending out section
Face tilts.
Further, mechanical arm can stretch along own axes direction, and one end is fixed on the base of buggy ladle, mechanical arm
The other end and the mouth of a river under the direct tube section that saves be rigidly connected.
In addition, present invention also offers a kind of converter tapping guard method, comprise the following steps：
Step 1: control system sends tapping commencing signal, converter inclining；
Step 2: when it is molten steel that converter inclining angle, which reaches slag tapping hole top, control system control machinery arm, regulation
The position saved under the mouth of a river and height so that section achieves a butt joint with section on the mouth of a river under the mouth of a river；
Step 3: slide plate mop is opened in control system control, the molten steel in converter is set to enter ladle；
Step 4: in tapping process, converter inclining, driven by converter taphole and inclination is saved on the mouth of a river, realized on the mouth of a river
The section that extends out saved under the arcuate end of section and the mouth of a river rotates against, while the direct tube section guiding steel stream saved under the mechanical arm regulation mouth of a river
With being sufficiently stirred for alloy and slag charge；
Step 5: when tapping is at the end of, control system control machinery arm removes the direct tube section saved under the mouth of a river；
Step 6: when tapping terminates, slide plate mop is closed in control system control, and control system control converter resets.
Further, in step 3, control system control hydraulic control device opens slide plate mop；
Hydraulic control device one end is connected with sliding panel, and the other end is connected with control system；
Opening slide plate mop is：Hydraulic control device pulls the sliding panel saved on the mouth of a river so that the through hole on sliding panel
It is connected with converter taphole.
The present invention formed between ladle and converter taphole one it is closed go out steel conduit, change going out for conventional bareing
Steel mode, while effective reduction tapping slag is with tapping temperature drop, molten steel stream stock can have both been concentrated to improve to alloy in ladle
Effective stirring, can completely cut off contact of the molten steel stream stock with air again prevents molten steel air-breathing.
Brief description of the drawings
Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in whole accompanying drawing
In, identical reference symbol represents identical part.
Fig. 1 is the converter tapping protection device overall structure diagram of the present invention；
Fig. 2 is the slide plate mop structural representation of the converter tapping protection device of the present invention；
Fig. 3 is the converter protection gate structure schematic diagram of the converter tapping protection device of the present invention；
Fig. 4 is to save structural representation on the mouth of a river of the converter tapping protection device of the present invention；
Fig. 5 is the slide plate mop and converter protection mouth of a river scheme of installation of the converter tapping protection device of the present invention.
In figure：1- converters, 2- trunnion of converters, 3- converter tapholes, 4- slide plates mop, the 5- converters protection mouth of a river, 6- are
Mechanical arm, 7- ladles, 8- slags, 9- molten steel, 10- buggy ladles；
41- mainboards, the bottom plates of 42- first, the bottom plates of 43- second；
Section, 52- are saved under the mouth of a river on the 51- mouths of a river；
Section pipe, 521- extend out section, 522- direct tube sections on 511- sliding panels, 512-.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
The invention provides a kind of converter tapping protection device, as shown in figure 1, including slide plate mop 4, converter protection water
Mouth 5, mechanical arm 6.
As shown in Fig. 2 slide plate mop 4 includes mainboard 41, the first bottom plate 42, the second bottom plate 43.Mainboard 41 is cuboid
Plate, the installation through-hole for installing converter tapping hole 3 being provided with center, there is rectangular preiection one end of mainboard 41 along its length,
First bottom plate 42, the second bottom plate 43 are L shaped plate, including riser and transverse slat.Along the width of mainboard 41, the first bottom plate 42 and
The riser of two bottom plates 42 is individually fixed in the lower section of the both sides of mainboard 41, and the bottom board symmetry of the first bottom plate 42 and the second bottom plate 43 is pacified
Dress, bottom plate are located at the lower section of mainboard 41, form a slideway that can be connected respectively in the both sides of the lower section of mainboard 41.
As shown in figure 3, the converter protection mouth of a river 5 includes saving 52 under section 51 and the mouth of a river on the mouth of a river.
As shown in figure 4, section 51 includes sliding panel 511 and upper section pipe 512 on the mouth of a river.Sliding panel 511 is cuboid plate, width
The distance between the riser inner surface of first bottom plate 42 and the second bottom plate 43 is identical, and length is identical with the length of mainboard 41, edge
There is rectangular recess the rectangular direction of sliding panel 511 itself, one end, and the size of the rectangular preiection of rectangular recess mainboard 41 matches,
Can Matching installation, for limiting the position of sliding panel 511.As shown in figure 5, sliding panel 511 is installed on the lower section both sides of mainboard 41
Slideway in, can be reciprocatingly slided along the length direction of mainboard 41 in slideway.
Through hole is provided with sliding panel 511, through-hole diameter is identical with the diameter of installation through-hole on mainboard 41, and through hole is fixed with
Upper section pipe 512.Upper section pipe 512 is pipe, and the through hole of sliding panel 511 is fixed in one end, and the other end is circular arc and inside contracted
Structure.Sliding panel 511 reciprocatingly slides together with upper section pipe 512 along the length direction of mainboard 41 in cavity.
Section 52 includes extending out section 521 and direct tube section 522 under the mouth of a river.It is hollow truncated cone-shaped to extend out section 521, diameter it is small one
Fixation is docked at end with direct tube section 522, and direct tube section 522 is one section of pipe.
The circular arc end of upper section pipe 512 is mountable under the mouth of a river the extending out in section 521 of section 52, can be with extending out section 521
Internal face tilts or rotation.
In Fig. 1, mechanical arm 6 is shaft-like, and can be elongated or shortened along own axes direction, and one end is connected to buggy ladle 10
On base, mechanical arm 6 is elongated or shortened by hydraulic cylinder control, and 52 direct tube section 522 is saved under the other end of mechanical arm 6 and the mouth of a river
It is rigidly connected so that direct tube section 522 can elongating or shortening and move up or move down with mechanical arm 6.Hydraulic cylinder is connected by circuit
Control system is connected to, meanwhile, control system is connected with converter 1, and the tapping to converter 1 is controlled.
In use, ladle 7 is fixed on buggy ladle 10, converter 1 is hung on the surface of ladle 7, ladle by trunnion of converter 2
7 converter taphole 3 is fixedly connected with slide plate mop 4, i.e., converter taphole 3 is welded in the installation through-hole of slide plate mop 4
It is interior, 51 are saved on the mouth of a river and is installed in the cavity of sliding panel 511, mechanical arm 6 is fixed on the base of buggy ladle 10, in ladle 7
Molten steel 9 and slag liquid can be contained, section 52 is fixed by mechanical arm 6 under the mouth of a river, dismountable, can also be moved up or move down with mechanical arm 6,
Adjusted by mechanical arm 6 so that above save the circular arc end of pipe 512 positioned at extending out in section 521, the end of direct tube section 522 is located at molten steel 9
It is interior.Sliding panel 511 is connected with hydraulic control device, for controlling opening or closing for slide plate mop 4, to realize control converter
The opening and closing, hydraulic control device of 1 tapping hole 3 are connected with control system, can be achieved to automatically control.Optionally, hydraulic pressure
Control device can be jack or hydraulic cylinder or motor.
Present invention also offers a kind of converter tapping guard method, comprise the following steps：
Step 1: converter smelting is completed, after control system detection molten steel temperature and composition is qualified, control system sends tapping
Commencing signal, converter 1, which is fascinated, is tapped；
Step 2: when it is molten steel that converter inclining angle, which reaches slag tapping hole top, control system control machinery arm 6, machine
Tool arm 6 adjusts the position of section 52 and height under the mouth of a river so that 52 are saved under the mouth of a river and is achieved a butt joint with section 51 on the mouth of a river, is protected for tapping
Shield；
Step 3: control system control hydraulic control device opens slide plate mop 4, make the molten steel in converter 1 by tapping
Mouth 3 enters ladle 7 through slide plate mop 4 and the converter protection mouth of a river 5；
Slag outflow is blocked in converter inclining process can.Slag is the top for swimming in molten steel, and slag outflow has
In two periods, when converter 1 is fascinated, the slag in converter 1 can touch tapping hole 3, if now tapping hole 3 is to open,
A part of slag can be poured out, so now to block tapping hole 3, does not allow slag to pour out；As converter 1 continues to fascinate, molten steel is
Tapping hole 3 is submerged, now slag can not flow out, so can open slide plate mop 4 realizes tapping, in the later stage of tapping, because
It is few for the molten steel in converter 1, and be slag above molten steel, so vortex can be produced, vortex can screw out slag, or
Directly discharged from tapping hole 3, at this moment need to close slide plate mop 4.
Specifically, it is the sliding panel 511 that hydraulic control device pulls section 51 on the mouth of a river to open slide plate mop 4 so that sliding
Through hole on dynamic plate 511 is connected with converter taphole 3；
Step 4: in tapping process, converter 1 is fascinated, and is driven section 51 on the mouth of a river to tilt by converter taphole 3, is realized water
The section 521 that extends out of section 52 rotates against under the arcuate end of section 51 and the mouth of a river on mouth, while mechanical arm 6 adjusts section 52 under the mouth of a river
Direct tube section 522 guides being sufficiently stirred for steel stream and alloy and slag charge；
Step 5: when tapping molten steel close at the end of, control system control machinery arm 6 by under the mouth of a river section 52 direct tube section
522 remove, and realize and save 52 disconnections under section 51 and the mouth of a river on the mouth of a river at the converter protection mouth of a river 5；
Step 6: when tapping terminates, slide plate mop 4 is closed in control system control, and control system control converter resets, when
When control system detects that converter returns to original position, slide plate mop 4 is opened in control.
In summary, the invention provides a kind of converter tapping protection device and method, ladle and converter taphole it
Between form a closed tapping mode for going out steel conduit, changing conventional bareing, reduce tapping slag and tapping temperature effective
It while drop, can both concentrate molten steel stream stock to improve effective stirring to alloy in ladle, molten steel stream stock and sky can be completely cut off again
The contact of gas prevents molten steel air-breathing.
Although combined preferred embodiment is described in detail to the present invention, those skilled in the art should
What it is when understanding is that various amendments are all allowed, and they both fall within this hair in the case of without prejudice to spirit of the invention and essence
Among bright scope of the claims.
Claims (10)
1. a kind of converter tapping protection device, it is characterised in that including slide plate mop (4), the converter protection mouth of a river (5) and machinery
Arm (6)；
The installation through-hole for installing converter tapping hole (3) is provided with slide plate mop (4) center；The slide plate mop
(4) both sides are respectively equipped with a slideway；
The sliding panel (511) of the described converter protection mouth of a river (5) upper end is installed in the slideway of the slide plate mop (4), can edge
Slideway reciprocatingly slides；The described converter protection mouth of a river (5) lower end is stretched into the molten steel (9) of ladle (7)；
The installation through-hole diameter identical through hole with the slide plate mop (4) is provided with the sliding panel (511)；
The mechanical arm (6) is installed on buggy ladle (10), for fixing the converter protection mouth of a river (5).
2. converter tapping protection device according to claim 1, it is characterised in that the slide plate mop (4) includes master
Plate (41), the first bottom plate (42), the second bottom plate (43)；
The mainboard (41) is cuboid plate, and the installation through-hole for installing converter tapping hole (3) is provided with center；
First bottom plate (42), the second bottom plate (43) are L shaped plate, including riser and transverse slat；Along mainboard (41) width,
The riser of first bottom plate (42) and the second bottom plate (42) is individually fixed in the lower section of mainboard (41) both sides, in the lower section of mainboard (41)
Both sides form a slideway respectively.
3. converter tapping protection device according to claim 1 or 2, it is characterised in that the converter protection mouth of a river (5) bag
Include to save on the mouth of a river and save (52) under (51) and the mouth of a river；
(51) are saved on the mouth of a river includes sliding panel (511) and upper section pipe (512)；
The upper section pipe (512) is fixed on the through hole of the sliding panel (511)；
The upper section pipe (512) is mounted at saving the extending out in section (521) of (52) under the mouth of a river.
4. converter tapping protection device according to claim 3, it is characterised in that the sliding panel (511) is cuboid
Plate, width is identical with the distance between the riser inner surface of the first bottom plate (42) and the second bottom plate (43), length and mainboard (41)
Length it is identical, along sliding panel (511) the rectangular direction of itself, there is a rectangular recess one end, the square of rectangular recess and mainboard (41)
Shape projection Matching installation, sliding panel (511) are installed in the slideway of the lower section both sides of mainboard (41), can be along the length of mainboard (41)
Direction reciprocatingly slides in slideway.
5. converter tapping protection device according to claim 4, it is characterised in that the upper section pipe (512) is pipe, one
The through hole of sliding panel (511) is fixed at end, and the other end is circular arc and the structure inside contracted.
6. converter tapping protection device according to claim 5, it is characterised in that (52) are saved under the mouth of a river to be included extending out
Section (521) and direct tube section (522)；
The section (521) that extends out is hollow truncated cone-shaped, and fixation is docked in the small one end of diameter with direct tube section (522)；
The direct tube section (522) is one section of pipe.
7. converter tapping protection device according to claim 6, it is characterised in that the circular arc of the upper section pipe (512)
End is installed on and the extending out in section (521) of (52) is saved under the mouth of a river, can be tilted with the internal face for extending out section (521).
8. converter tapping protection device according to claim 7, it is characterised in that the mechanical arm (6) can be along itself
Axis direction stretches, and one end is fixed on the base of buggy ladle (10), and the other end of mechanical arm (6) under the mouth of a river with saving (52)
Direct tube section (522) be rigidly connected.
9. a kind of converter tapping guard method, it is characterised in that comprise the following steps：
Step 1: control system sends tapping commencing signal, converter (1) is fascinated；
Step 2: when it is molten steel that converter inclining angle, which reaches slag tapping hole top, control system control machinery arm (6), regulation
Position and the height of (52) are saved under the mouth of a river so that (52) are saved under the mouth of a river and are achieved a butt joint with saving (51) on the mouth of a river；
Step 3: slide plate mop (4) is opened in control system control, the molten steel in converter (1) is set to enter ladle (7)；
Step 4: in tapping process, converter (1) is fascinated, and is driven by converter taphole (3) and (51) inclination is saved on the mouth of a river, realized
On the mouth of a river save (51) arcuate end and the mouth of a river under save (52) the section (521) that extends out rotate against, while mechanical arm (6) regulation water
Direct tube section (522) the guiding steel stream of mouthful lower section (52) and alloy and slag charge are sufficiently stirred；
Step 5: when tapping is at the end of, control system control machinery arm (6) will save the direct tube section (522) of (52) under the mouth of a river
Remove；
Step 6: when tapping terminates, slide plate mop (4) is closed in control system control, and control system control converter resets.
10. converter tapping guard method according to claim 9, it is characterised in that in the step 3, control system control
Hydraulic control device processed opens slide plate mop (4)；
Described hydraulic control device one end is connected with sliding panel (511), and the other end is connected with control system；
It is described opening slide plate mop (4) be：The hydraulic control device pulls the sliding panel (511) that (51) are saved on the mouth of a river, makes
The through hole obtained on sliding panel (511) is connected with converter taphole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486629.5A CN107385143B (en) | 2017-06-23 | 2017-06-23 | A kind of converter tapping protective device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486629.5A CN107385143B (en) | 2017-06-23 | 2017-06-23 | A kind of converter tapping protective device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107385143A true CN107385143A (en) | 2017-11-24 |
| CN107385143B CN107385143B (en) | 2019-03-05 |
Family
ID=60332008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710486629.5A Active CN107385143B (en) | 2017-06-23 | 2017-06-23 | A kind of converter tapping protective device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107385143B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059532A (en) * | 2018-08-09 | 2018-12-21 | 北京科技大学 | A kind of anti-oxidation high temperature process furnances fire door structure |
| CN113549728A (en) * | 2021-07-13 | 2021-10-26 | 鞍钢股份有限公司 | Device for preventing converter from deslagging and shortening tapping time and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5469506A (en) * | 1977-11-15 | 1979-06-04 | Nippon Steel Corp | Slide refractory plate for opening and shutting device for tap hole of converter |
| GB2296210A (en) * | 1994-12-23 | 1996-06-26 | Flogates Ltd | Sliding gate valve |
| CN205347486U (en) * | 2015-11-26 | 2016-06-29 | 辽宁科技大学 | Converter tapping hole sliding plate device for pushing off slag |
| CN106011366A (en) * | 2016-06-12 | 2016-10-12 | 中国十七冶集团有限公司 | Combination mounting method for complete equipment of converter tapping hole |
| CN205821373U (en) * | 2016-06-22 | 2016-12-21 | 首钢京唐钢铁联合有限责任公司 | A kind of blocking dregs of converter furnace sliding plate device |
-
2017
- 2017-06-23 CN CN201710486629.5A patent/CN107385143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5469506A (en) * | 1977-11-15 | 1979-06-04 | Nippon Steel Corp | Slide refractory plate for opening and shutting device for tap hole of converter |
| GB2296210A (en) * | 1994-12-23 | 1996-06-26 | Flogates Ltd | Sliding gate valve |
| CN205347486U (en) * | 2015-11-26 | 2016-06-29 | 辽宁科技大学 | Converter tapping hole sliding plate device for pushing off slag |
| CN106011366A (en) * | 2016-06-12 | 2016-10-12 | 中国十七冶集团有限公司 | Combination mounting method for complete equipment of converter tapping hole |
| CN205821373U (en) * | 2016-06-22 | 2016-12-21 | 首钢京唐钢铁联合有限责任公司 | A kind of blocking dregs of converter furnace sliding plate device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059532A (en) * | 2018-08-09 | 2018-12-21 | 北京科技大学 | A kind of anti-oxidation high temperature process furnances fire door structure |
| CN109059532B (en) * | 2018-08-09 | 2023-11-07 | 北京科技大学 | Anti-oxidation high-temperature tube furnace mouth structure |
| CN113549728A (en) * | 2021-07-13 | 2021-10-26 | 鞍钢股份有限公司 | Device for preventing converter from deslagging and shortening tapping time and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107385143B (en) | 2019-03-05 |
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