CN109439838A - A kind of steelmaking converter backing ring - Google Patents
A kind of steelmaking converter backing ring Download PDFInfo
- Publication number
- CN109439838A CN109439838A CN201910025166.1A CN201910025166A CN109439838A CN 109439838 A CN109439838 A CN 109439838A CN 201910025166 A CN201910025166 A CN 201910025166A CN 109439838 A CN109439838 A CN 109439838A
- Authority
- CN
- China
- Prior art keywords
- backing ring
- main body
- ring main
- partition
- cushion chamber
- 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.)
- Pending
Links
Classifications
-
- 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
- C21C5/4633—Supporting means
-
- 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
- C21C5/4646—Cooling arrangements
Landscapes
- 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 present invention relates to steelmaking equipment technical fields, and disclose a kind of steelmaking converter backing ring, including backing ring main body, the left side of the backing ring main body is equipped with drive shaft, the right side of the backing ring main body is equipped with hollow shaft, the inside of the backing ring main body is equipped with partition, and short inner reinforced plate is equipped between the partition and backing ring main body inner wall.Pass through the differential water pressures between pressure difference switch valve real-time monitoring cushion chamber and backing ring body interior cavity, the hydraulic pressure that backing ring main body inner ring face scaling loss is formed inside water jet moment cushion chamber becomes smaller, differential water pressures between cushion chamber and backing ring body interior cavity become larger, differential water pressures driving pressure difference switch valve is automatically closed, one circulating water pipe is blocked, it is acted on by check valve one-way flow, another circulating water pipe is blocked, cushion chamber only has water jet one opening at this time, water jet is compared to cushion chamber very little, its internal cooling water will not flow out, cooling water will not merge generation explosion with molten steel, it is highly-safe.
Description
Technical field
The present invention relates to steelmaking equipment technical field, specially a kind of steelmaking converter backing ring.
Background technique
Steelmaking converter is to be not required to by external energy, using molten iron, steel scrap, ferroalloy as primary raw material by iron liquid itself
The equipment that the heat of generation completes steel-making is chemically reacted between physical thermal and iron liquid component, is that the most widely used steel-making is set at present
It is standby, it is mainly made of furnace body, backing ring, horizontal shaft bracket, water circulation system, lancing system etc., wherein backing ring is holding for entire furnace body
Refitting is set, and self weight is outer also to undertake the weight such as furnace body, molten steel except undertaking, and section is box-shaped welding structure, inside be connected with circulation
Water is cooling, and to reduce heat radiation of the furnace body to backing ring, but during smelting molten steel, furnace body discharge port side and charging door side can occur
Furnace accident is worn, the molten steel of ejection washes away backing ring, and by backing ring scaling loss, high-pressure cooling water sprays in backing ring, a large amount of cooling waters and molten steel
It is heated after mixing very fast gasification, volume acutely expands, and generates explosion, causes serious accident, wear furnace accident to reduce
Harmfulness, people cast corundum castable between backing ring and annular guard board, backing ring is separated with molten steel it is explosion-proof to realize, still,
It still has following problems in actual use:
1, when wearing the generation of furnace accident, high-temperature molten steel locally washes away annular guard board, and annular guard board can be burnt, at this time
High-temperature molten steel is flushed in corundum casting layer surface, and the very fast raising of corundum cast layer local temperature, corundum cast layer uneven heating is even
It bursts apart and generates gap, molten steel passes through gap and washes away backing ring, and by backing ring scaling loss, backing ring leakage sprays a large amount of cooling waters, a large amount of cooling
Water sets off an explosion with mixing of molten steel, causes serious accident.
2, it needs immediately to close recirculated cooling water after the leak of backing ring scaling loss, close after recirculated cooling water, backing ring temperature
Degree increases, and deformation and cracking are generated under the double action of mechanical load and thermic load, cannot be used continuously, service life is short.
In view of the above-mentioned problems, the present invention provides a kind of steelmaking converter backing ring.
Summary of the invention
The present invention provides a kind of steelmaking converter backing ring, which can in time be formed backing ring scaling loss with backing ring
Water jet and recirculated cooling water disconnect, block cooling water injection, the cooling water of leakage is seldom, will not set off an explosion, safety
Height, and do not need to close entire recirculated cooling water, backing ring temperature is low, will not under the double action of mechanical load and thermic load
Deformation and cracking are generated, can continue to use long service life after repairing.
The invention provides the following technical scheme: a kind of steelmaking converter backing ring, including backing ring main body, the backing ring main body
Left side is equipped with drive shaft, and the right side of the backing ring main body is equipped with hollow shaft, and the inside of the backing ring main body is equipped with partition, institute
It states and is equipped with short inner reinforced plate between partition and backing ring main body inner wall, the both ends of the partition are equipped with long inner reinforced plate, two length
The inside of inner reinforced plate is equipped with circulating water pipe, and the other end of a circulating water pipe is equipped with pressure difference switch valve, described in another
The other end of circulating water pipe is equipped with check valve, and the inner ring face of the backing ring main body is equipped with annular guard board, the annular guard board and support
It encloses and is equipped with corundum castable between main body inner ring face, the front of the backing ring main body is equipped with water outlet.
Further, the partition is made by fine copper.
Further, the shape of the partition is arc, and the arc rate of the partition and the arc rate of backing ring main body are identical, described
The length value of partition is the one third of backing ring main body inner ring annulus perimeter.
Further, the short inner reinforced plate includes main board, the edge of the main board respectively with backing ring main body inner wall and
Bulkhead sides connection, the side of the main board offer circulation water hole.
Further, the long inner reinforced plate includes gusset main body, the edge of the gusset main body and the inner wall of backing ring main body
Connection, the side of the backing ring main body offer mounting hole, and the mounting hole is fixedly attached with circulating water pipe, the long inner reinforced plate
Side offer limbers.
Further, the inner diameter values in the circulation water hole are identical as the inner diameter values of limbers.
Further, the inner diameter values of the circulating water pipe and the inner diameter values of limbers are identical.
The present invention have it is following the utility model has the advantages that
1, by the cooperation of partition and long inner reinforced plate, it is located at converter discharge port side and charging door side point in backing ring body interior
Not Xing Cheng a cushion chamber, by the differential water pressures between pressure difference switch valve real-time monitoring cushion chamber and backing ring body interior cavity,
The hydraulic pressure that backing ring main body inner ring face scaling loss is formed inside water jet moment cushion chamber becomes smaller, cushion chamber and backing ring body interior cavity
Between differential water pressures become larger, differential water pressures driving pressure difference switch valve be automatically closed, a circulating water pipe is blocked, check valve list is passed through
It acts on, another circulating water pipe is blocked, cushion chamber only has water jet one opening at this time, and water jet is compared to buffering to circulation
Chamber very little, internal cooling water will not flow out, and cooling water will not merge generation explosion with molten steel, highly-safe.
2, corresponding two circulating water pipes are blocked by pressure difference switch valve and check valve, is made in cushion chamber and backing ring main body
Chamber separates, it is ensured that recirculated cooling water still can after backing ring main body inner ring face is located at converter discharge port side and charging door side generation scaling loss
Enough to circulate in backing ring body interior, cooling water will not spray, will be cooling in cushion chamber by the good heating conduction of partition
The cooling water that the heat transfer of water is circulated to backing ring body lumen reduces the temperature of cooling water in cushion chamber, makes backing ring master
Body is constantly in safe temperature range, and deformation and cracking, thing will not be generated under the double action of mechanical load and thermic load
It will can continue to use long service life after water jet repairing afterwards.
Detailed description of the invention
Fig. 1 is existing backing ring schematic diagram of internal structure；
Fig. 2 is existing backing ring outside drawing；
Fig. 3 is schematic structural view of the invention；
Fig. 4 is outside drawing of the present invention；
Fig. 5 is the schematic diagram of the section structure in Fig. 4 at A-A；
Fig. 6 is the structural schematic diagram of long inner reinforced plate in Fig. 3.
In figure: 1, backing ring main body；2, drive shaft；3, hollow shaft；4, partition；5, short inner reinforced plate；501, main board；502, it follows
Ring water hole；6, long inner reinforced plate；601, gusset main body；602, mounting hole；603, limbers；7, circulating water pipe；8, pressure difference switch valve；
9, check valve；10, annular guard board；11, corundum castable；12, water outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 3-5, a kind of steelmaking converter backing ring, including backing ring main body 1 are please referred to, the left side of the backing ring main body 1 is set
There is drive shaft 2, the right side of the backing ring main body 1 is equipped with hollow shaft 3, and the channel inside hollow shaft 3 is described to lead to recirculated water
The inside of backing ring main body 1 is equipped with partition 4, is equipped with short inner reinforced plate 5, the partition 4 between 1 inner wall of the partition 4 and backing ring main body
Both ends be equipped with long inner reinforced plate 6, cushion chamber is formed between 1 inner ring of partition 4, long inner reinforced plate 6 and backing ring main body, described in two
The inside of long inner reinforced plate 6 is equipped with circulating water pipe 7, and the other end of a circulating water pipe 7 is equipped with pressure difference switch valve 8, pressure difference
Switch valve 8 is preset with a pressure difference, it is ensured that and the backing ring uses initial stage, and cooling water can slowly be full of backing ring main body 1, another
The other end of the circulating water pipe 7 is equipped with check valve 9, and the inner ring face of the backing ring main body 1 is equipped with annular guard board 10, the annular
Corundum castable 11 is equipped between 1 inner ring face of backplate 10 and backing ring main body, the front of the backing ring main body 1 is equipped with water outlet 12.
The partition 4 is made by fine copper, using the good heating conduction of partition 4, by the heat of cooling water in cushion chamber
Amount quickly passes to the cooling water that 1 inner cavity of backing ring main body circulates, and reduces the temperature of cooling water in cushion chamber, it is ensured that backing ring master
Body 1 is constantly in safe temperature range.
The shape of the partition 4 be arc, the arc rate of the partition 4 and the arc rate of backing ring main body 1 are identical, make partition 4 and
An independent arc buffering chamber is formed between 1 inner ring of backing ring main body, the length value of the partition 4 is 1 inner ring of backing ring main body circle
The one third of ring perimeter protect the position of the 1 easy scaling loss in inner ring face of backing ring main body can by cushion chamber, highly-safe.
The short inner reinforced plate 5 include main board 501, the edge of the main board 501 respectively with 1 inner wall of backing ring main body and every
The connection of 4 side of plate, increases the mechanical strength of backing ring main body 1, increases the difficulty of 1 deformation of backing ring main body, the main board 501
Side offers circulation water hole 502.
The long inner reinforced plate 6 includes gusset main body 601, and the edge of the gusset main body 601 and the inner wall of backing ring main body 1 connect
It connects, the inner cavity of backing ring main body 1 is separated, while increasing the mechanical strength of backing ring main body 1, increase the difficulty of 1 deformation of backing ring main body
Add, the side of the backing ring main body 1 offers mounting hole 602, and the mounting hole 602 is fixedly attached with circulating water pipe 7, the length
The side of inner reinforced plate 6 offers limbers 603.
The inner diameter values in the circulation water hole 502 are identical as the inner diameter values of limbers 603, make cooling water in backing ring main body 1
Portion is stable to be circulated, and variation in water pressure caused by cooling water change in flow is avoided, and pressure difference switch valve 8 is made to detect the function of differential water pressures
It can be more accurate.
The inner diameter values of the circulating water pipe 7 are identical as the inner diameter values of limbers 603, keep cooling water stable in cushion chamber
It circulates, it is ensured that the water pressure invariableness of cooling water in cushion chamber increases the accuracy that pressure difference switch valve 8 strains.
When furnace accident is worn in converter discharge port side and charging door side, annular guard board 10 is washed away in high-temperature molten steel outflow, ring
Shape backplate 10 is burnt, and high-temperature molten steel passes through annular guard board 10 to 11 local scour of corundum castable, and corundum castable 11 is heated
It unevenly bursts apart and generates gap, molten steel passes through gap and washes away 1 inner ring face of backing ring main body, and 1 inner ring face scaling loss of backing ring main body is formed
Water jet, the moment that water jet is formed, cooling water has the tendency that spraying from water jet in cushion chamber, in this instantaneous cooling water flow
The speed for entering cushion chamber is less than the speed of cooling water outflow cushion chamber, and cooling water pressure significantly reduces in cushion chamber, backing ring main body 1
Differential water pressures in interior recirculated water and cushion chamber between cooling water significantly increase, and differential water pressures are greater than preset pressure value, differential water pressures driving
Pressure difference switch valve 8 is closed, and a circulating water pipe 7 for being connected to cushion chamber is blocked, and is acted on by 9 one-way flow of check valve, will even
Another circulating water pipe 7 of logical cushion chamber is blocked, and cushion chamber only has water jet one opening at this time, and water jet is compared to cushion chamber
Very little, internal cooling water will not flow out, and hereafter, the recirculated cooling water in backing ring main body 1 still is able in backing ring main body 1
Portion circulates, and will not spray, and then the heat of cooling water passes to 1 inner cavity of backing ring main body circulation by partition 4 in cushion chamber
The cooling water of flowing reduces the temperature of cooling water in cushion chamber, is constantly in backing ring main body 1 in safe temperature range, will not
Deformation and cracking are generated under the double action of mechanical load and thermic load, molten steel is poured out completely and temperature drops to after room temperature,
Water jet is repaired, the backing ring main body 1 after repairing can continue to use long service life.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of steelmaking converter backing ring, including backing ring main body (1), it is characterised in that: the left side of the backing ring main body (1) is set
Have drive shaft (2), the right side of the backing ring main body (1) is equipped with hollow shaft (3), the inside of the backing ring main body (1) be equipped with every
Plate (4) is equipped with short inner reinforced plate (5) between the partition (4) and backing ring main body (1) inner wall, and the both ends of the partition (4) are equipped with
The inside of long inner reinforced plate (6), two long inner reinforced plates (6) is equipped with circulating water pipe (7), circulating water pipe (7)
The other end is equipped with pressure difference switch valve (8), and the other end of another circulating water pipe (7) is equipped with check valve (9), the backing ring master
The inner ring face of body (1) is equipped with annular guard board (10), and corundum is equipped between the annular guard board (10) and backing ring main body (1) inner ring face
The front of castable (11), the backing ring main body (1) is equipped with water outlet (12).
2. a kind of steelmaking converter backing ring according to claim 1, it is characterised in that: the partition (4) is made by fine copper
It forms.
3. a kind of steelmaking converter backing ring according to claim 1, it is characterised in that: the shape of the partition (4) is arc
The arc rate of shape, the partition (4) is identical as the arc rate of backing ring main body (1), and the length value of the partition (4) is backing ring main body (1)
The one third of inner ring annulus perimeter.
4. a kind of steelmaking converter backing ring according to claim 1, it is characterised in that: the short inner reinforced plate (5) includes master
Body plate (501), the edge of the main board (501) are connect with backing ring main body (1) inner wall and partition (4) side respectively, the master
The side of body plate (501) offers circulation water hole (502).
5. a kind of steelmaking converter backing ring according to claim 1, it is characterised in that: the long inner reinforced plate (6) includes muscle
The edge of plate main body (601), the gusset main body (601) is connect with the inner wall of backing ring main body (1), the backing ring main body (1)
Side offers mounting hole (602), and the mounting hole (602) is fixedly attached with circulating water pipe (7), the long inner reinforced plate (6)
Side offers limbers (603).
6. a kind of steelmaking converter backing ring according to claim 4, it is characterised in that: described to recycle the interior of water hole (502)
Diameter value is identical as the inner diameter values of limbers (603).
7. a kind of steelmaking converter backing ring according to claim 1, it is characterised in that: the internal diameter of the circulating water pipe (7)
It is worth identical as the inner diameter values of limbers (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025166.1A CN109439838A (en) | 2019-01-11 | 2019-01-11 | A kind of steelmaking converter backing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025166.1A CN109439838A (en) | 2019-01-11 | 2019-01-11 | A kind of steelmaking converter backing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109439838A true CN109439838A (en) | 2019-03-08 |
Family
ID=65544117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910025166.1A Pending CN109439838A (en) | 2019-01-11 | 2019-01-11 | A kind of steelmaking converter backing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109439838A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497197A (en) * | 1966-06-21 | 1970-02-24 | Voest Ag | Tiltable crucible or converter for carrying out metallurgical processes |
| CN2729082Y (en) * | 2004-09-30 | 2005-09-28 | 中冶赛迪工程技术股份有限公司 | Converter support ring of water cooling |
| CN201301325Y (en) * | 2008-12-03 | 2009-09-02 | 中冶集团北京冶金设备研究设计总院 | Water-cooled trunnion ring unit |
| CN104673967A (en) * | 2015-03-20 | 2015-06-03 | 山东钢铁股份有限公司 | Bleed-out explosion-proof device for converter |
| CN205635677U (en) * | 2016-05-16 | 2016-10-12 | 郭广文 | Converter armor formula oxygen rifle |
| CN207091458U (en) * | 2017-05-24 | 2018-03-13 | 中冶南方工程技术有限公司 | Adapt to the water cooling backing ring and steel-smelting device of primary converter transformation |
| CN207811309U (en) * | 2017-12-11 | 2018-09-04 | 天津泰达新水源科技开发有限公司 | The slag-draining device of flotation tank upper layer body refuse |
-
2019
- 2019-01-11 CN CN201910025166.1A patent/CN109439838A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497197A (en) * | 1966-06-21 | 1970-02-24 | Voest Ag | Tiltable crucible or converter for carrying out metallurgical processes |
| CN2729082Y (en) * | 2004-09-30 | 2005-09-28 | 中冶赛迪工程技术股份有限公司 | Converter support ring of water cooling |
| CN201301325Y (en) * | 2008-12-03 | 2009-09-02 | 中冶集团北京冶金设备研究设计总院 | Water-cooled trunnion ring unit |
| CN104673967A (en) * | 2015-03-20 | 2015-06-03 | 山东钢铁股份有限公司 | Bleed-out explosion-proof device for converter |
| CN205635677U (en) * | 2016-05-16 | 2016-10-12 | 郭广文 | Converter armor formula oxygen rifle |
| CN207091458U (en) * | 2017-05-24 | 2018-03-13 | 中冶南方工程技术有限公司 | Adapt to the water cooling backing ring and steel-smelting device of primary converter transformation |
| CN207811309U (en) * | 2017-12-11 | 2018-09-04 | 天津泰达新水源科技开发有限公司 | The slag-draining device of flotation tank upper layer body refuse |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1202176A (en) | Forced cooling panel for lining a metallurgical furnace | |
| EP0965026A1 (en) | Continuously operating liquid-cooled panel | |
| CN109439838A (en) | A kind of steelmaking converter backing ring | |
| CN105296692A (en) | Novel environment-protection and long-life welding type slag ladle | |
| CN109735672B (en) | Water collecting and draining method and device for blast furnace hearth | |
| CN2801795Y (en) | Long life water cooling fire hole | |
| CN210560536U (en) | Cast forging type tuyere medium sleeve | |
| CN204608120U (en) | A kind of PS converter with eye of wind district heat sink | |
| CN115216581A (en) | Long service life's nitrogen carbon combined type water-cooling unloader | |
| CN2680678Y (en) | Tuyeres of blast furnace | |
| CN101665854A (en) | Design method of converter cast iron water-cooling mouth | |
| CN103924019A (en) | Method for changing tuyere medium sleeve | |
| CN217709549U (en) | High-strength protection bag for preventing iron notch erosion of submerged arc furnace | |
| CN101660759B (en) | Film-type water-cooling lining wear-resistant plastic slag-roughing device | |
| CN206779440U (en) | Resistant to corrosion ladle | |
| CN210656667U (en) | Glass melting furnace leaking stoppage tool | |
| CN105157423A (en) | Energy-saving corundum smelting furnace | |
| CN1986837A (en) | Integral furnace apron slag baffle | |
| CN214406140U (en) | Protection device for water jacket of copper-steel composite copper cooling wall | |
| CN215411922U (en) | Slag cooler of heat island boiler | |
| CN217757536U (en) | Long service life's nitrogen carbon combined type water-cooling unloader | |
| CN215373473U (en) | Smelting furnace oxygen supply blocking gun structure for smelting aluminum cylinder of waste automobile | |
| CN201273774Y (en) | Inner stove blanking mouth for ore furnace | |
| CN206014985U (en) | Hydraulic pressure water-cooled cinder notch clay gun device | |
| CN214095531U (en) | High-temperature-resistant furnace bottom roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190308 |
|
| RJ01 | Rejection of invention patent application after publication |