CN207062316U - Pneumatic steelmaking steel scrap bucket - Google Patents
Pneumatic steelmaking steel scrap bucket Download PDFInfo
- Publication number
- CN207062316U CN207062316U CN201720485136.5U CN201720485136U CN207062316U CN 207062316 U CN207062316 U CN 207062316U CN 201720485136 U CN201720485136 U CN 201720485136U CN 207062316 U CN207062316 U CN 207062316U
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- CN
- China
- Prior art keywords
- steel scrap
- bucket
- steel
- scrap bucket
- burner
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
A kind of pneumatic steelmaking steel scrap bucket, steel scrap bucket main body is made up of shell and liner, shell is steel design, liner is thermal storage refractory Rotating fields, the heat of high temperature of preheating scrap is accumulated in steel scrap bucket, burner is embedded with refractory lining, flammable burning gases are passed through in burner, burning gases burn and are blown into steel scrap bucket, steel scrap is preheated, equipped with the coal cinder for playing combustion-supporting effect initial stage in preheating in steel scrap in steel scrap bucket, steel scrap bucket top is provided with for sealing, heat-insulated bucket cover, and thermocouple for measuring temperature is housed on bucket cover.The steel scrap bucket can improve steel scrap charging temperature to steel scrap rapidly pre-warming, increase converter scrap ratio, reduce the consumption of converter slag-making material, save the part energy；During Converter Oxigen Blowing is smelted, while preheated outside stove, do not increase the converter smelting cycle；Steel scrap value is lifted, rationally using waste resource, steel scrap is reduced and piles up discharge and environmental pollution.The steel scrap bucket is applied to the technological improvement of existing steel plant's steelmaking equipment.
Description
Technical field
The utility model is related to a kind of pneumatic steelmaking and refining application field, spy be related to it is right before a kind of converter smelting iron making
The pneumatic steelmaking that steel scrap is preheated steel scrap bucket.
Background technology
Raw material is mainly high temperature liquid iron during top-blown converter steelmaking, while is smelted with addition of a certain proportion of steel scrap, tradition
Middle scrap ratio is generally 10% or so.
China's iron and steel output is skyrocketed through nearly ten years, keeps the first in the world year after year, and surplus has occurred in production capacity at present, together
When also rise year by year with the gradual arriving of every profession and trade ferrous materials service phase, steel scrap amount, it is contemplated that 10 years futures, also will be
The period that steel scrap amount is skyrocketed through.How efficiently using steel scrap by be steel plant recycling consumption waste and old resource important class
Topic.Existing converter largely uses steel scrap, reduces molten iron dosage, improves scrap ratio, will make converter shortage of heat, and oxygen blast is smelted not
It is suitable, therefore the steel scrap amount being blended into by steel scrap bucket in converter is limited.West Germany was blown into coal dust in 1978 in combined blown converter furnace bottom,
Scrap ratio is reached 60%, scrap ratio is reached 100%, referred to as KS steelmaking processes for the first time in converter again afterwards；Also there is class in the Soviet Union
Like the converter smelting method of KS methods, scrap ratio is up to 50 ~ 70%；SUMITOMO CHEMICAL metal is in 1985 successfully in combined blown converter
The smelting test of the full steel scrap of interior progress STB methods；China's Baosteel in order to make full use of converter producing ability, solve hot metal supply not
Foot, the purpose for improving scrap ratio is explored, once made to subtract ore in converter and add coke to test, also improve scrap ratio.It is above-mentioned this
A little experiments are that coke or coal are added in converter, are blended into cold conditions steel scrap after bottom blowing oxygen, and add when smelting in the later stage
Lump coal or Coal powder spray further improve heat.
Coke or coal are added in converter, is blended into cold conditions steel scrap after bottom blowing oxygen, and block is added when smelting in the later stage
The mode of heat is troublesome in poeration, the cycle is longer further improving for coal or Coal powder spray, and effect is not ideal.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of pneumatic steelmaking steel scrap bucket, uses
The utility model steel scrap bucket, can in steel scrap bucket preheating scrap, improve converter scrap ratio, simultaneously as being in Converter Oxigen Blowing smelting
While refining, preheated outside stove, do not influence the converter smelting cycle.
Realize that above-mentioned purpose the utility model uses following technical scheme：
A kind of pneumatic steelmaking steel scrap bucket, including steel scrap bucket main body, steel scrap bucket main body are made up of shell and liner, and shell is
Steel design, liner are thermal storage refractory Rotating fields, and the heat of high temperature of preheating scrap is accumulated in steel scrap bucket, in refractory material
Lining is embedded with burner, and flammable burning gases are passed through in burner, and burning gases burn and are blown into steel scrap bucket, steel scrap is carried out pre-
Heat, equipped with the coal cinder for playing combustion-supporting effect initial stage in preheating in the steel scrap in steel scrap bucket, steel scrap bucket top be provided be used to sealing, every
The bucket cover of heat, thermocouple for measuring temperature is housed on bucket cover.
Further, the interior lining in steel scrap bucket both sides inlays 3 ~ 6 row's burners respectively, is inlayed respectively on steel scrap bucket bottom liner
Embedding 5 ~ 10 row burner.
Further, the burning gases in burner are coal gas of converter or blast furnace gas and oxygen.
Further, the coal cinder granularity being furnished with steel scrap bucket is 3 ~ 6mm.
Further, coal cinder gross mass accounts for the 0.5 ~ 5.0% of steel scrap gross mass.
The utility model uses above-mentioned technical proposal, compared with prior art, has advantages below：1）Can be quick to steel scrap
Preheating, steel scrap charging temperature is improved, increase converter scrap ratio, reduced the consumption of converter slag-making material, save the part energy；2）Converter is blown
During oxygen is smelted, while preheated outside stove, do not increase the converter smelting cycle；3）Steel scrap value is lifted, is rationally utilized
Waste resource, reduce steel scrap and pile up discharge and environmental pollution.The technology that the steel scrap bucket is applied to existing steel plant's steelmaking equipment changes
Enter.
Brief description of the drawings
Fig. 1 is pneumatic steelmaking steel scrap bucket sectional drawing.
In Fig. 1, bucket cover 1, gudgeon 2, shell 3, liner 4, coal cinder 5, steel scrap 6, thermocouple 7, burner 8.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Following examples are used to illustrate the utility model, but are not used in limitation the scope of protection of the utility model.Embodiment
In condition can be adjusted according to actual conditions is further.
Embodiment 1
A kind of pneumatic steelmaking steel scrap bucket, it is a kind of novel steel scrap bucket preheated, and its structure is shown in Fig. 1, by bucket cover 1,
Shell 3, liner 4 etc. form；Shell 3 is steel design, and liner 4 is the preheating device of steel scrap bucket, is thermal storage refractory layer knot
Structure, liner 4 can ensure that the heat of high temperature of preheating scrap is accumulated in steel scrap bucket, burner 8 is embedded with liner 4, in steel scrap bucket both sides
Liner respectively inlays three row's burners 8, inlays five row's burners 8 in bottom liner 4, flammable burning gases, gas are passed through in burner 8
For coal gas of converter, it can burn and be blown into steel scrap bucket, steel scrap is preheated, be furnished with one in the steel scrap 6 in steel scrap bucket
Quantitative coal cinder 5, the granularity of coal cinder 5 are 3~6mm, and coal cinder gross mass accounts for the 0.5% of steel scrap gross mass, are played initial stage in preheating combustion-supporting
Effect, there is a bucket cover 1 steel scrap bucket upper end, and bucket cover 1 is used to seal, be heat-insulated, and thermocouple for measuring temperature 7 is housed on bucket cover.On steel scrap bucket
Portion is provided with the gudgeon 2 for being easy to lift.
Embodiment 2
A kind of pneumatic steelmaking steel scrap bucket, it is a kind of novel steel scrap bucket preheated, and its structure is shown in Fig. 1, by bucket cover 1,
Shell 3, liner 4 etc. form；Shell 3 is steel design, and liner 4 is the preheating device of steel scrap bucket, is thermal storage refractory layer knot
Structure, liner 4 can ensure that the heat of high temperature of preheating scrap is accumulated in steel scrap bucket, burner 8 is embedded with liner 4, in steel scrap bucket both sides
Liner respectively inlays five row's burners 8, inlays eight row's burners 8 in bottom liner 4, flammable burning gases, gas are passed through in burner 8
For blast furnace gas and oxygen, it can burn and be blown into steel scrap bucket, steel scrap is preheated, in the steel scrap 6 in steel scrap bucket
Equipped with a certain amount of coal cinder 5, the granularity of coal cinder 5 is 3~6mm, and coal cinder gross mass accounts for the 2.0% of steel scrap gross mass, from preheating initial stage
To combustion-supporting effect, there is bucket cover 1 steel scrap bucket upper end, and bucket cover 1 is used to seal, be heat-insulated, and thermocouple for measuring temperature 7 is housed on bucket cover.It is useless
Steel bucket top is provided with the gudgeon 2 for being easy to lift.
Embodiment 3
A kind of pneumatic steelmaking steel scrap bucket, it is a kind of novel steel scrap bucket preheated, and its structure is shown in Fig. 1, by bucket cover 1,
Shell 3, liner 4 etc. form；Shell 3 is steel design, and liner 4 is the preheating device of steel scrap bucket, is thermal storage refractory layer knot
Structure, liner 4 can ensure that the heat of high temperature of preheating scrap is accumulated in steel scrap bucket, burner 8 is embedded with liner 4, in steel scrap bucket both sides
Liner respectively inlays six row's burners 8, inlays ten rows in bottom liner, burner 8, and flammable burning gases, gas are passed through in burner 8
For coal gas of converter, it can burn and be blown into steel scrap bucket, steel scrap is preheated, be furnished with one in the steel scrap 6 in steel scrap bucket
Quantitative coal cinder 5, the granularity of coal cinder 5 are 3~6mm, and coal cinder gross mass accounts for the 2.0% of steel scrap gross mass, are played initial stage in preheating combustion-supporting
Effect, there is a bucket cover 1 steel scrap bucket upper end, and bucket cover 1 is used to seal, be heat-insulated, and thermocouple for measuring temperature 7 is housed on bucket cover.On steel scrap bucket
Portion is provided with the gudgeon 2 for being easy to lift.
Claims (5)
1. a kind of pneumatic steelmaking steel scrap bucket, including steel scrap bucket main body, it is characterised in that steel scrap bucket main body is by shell and liner group
Into, shell is steel design, and liner is thermal storage refractory Rotating fields, and the heat of high temperature of preheating scrap is accumulated in steel scrap bucket,
Burner is embedded with refractory lining, flammable burning gases are passed through in burner, burning gases burn and are blown into steel scrap bucket, right
Steel scrap is preheated, and equipped with the coal cinder for playing combustion-supporting effect initial stage in preheating in the steel scrap in steel scrap bucket, steel scrap bucket top is provided with
Bucket cover for sealing, heat-insulated, thermocouple for measuring temperature is housed on bucket cover.
2. pneumatic steelmaking steel scrap bucket according to claim 1, it is characterised in that the interior lining in steel scrap bucket both sides is inlayed respectively
Embedding 3 ~ 6 row burner, inlay 5 ~ 10 row's burners respectively on steel scrap bucket bottom liner.
3. pneumatic steelmaking according to claim 1 or claim 2 steel scrap bucket, it is characterised in that the burning gases in burner are converter
Coal gas or blast furnace gas and oxygen.
4. pneumatic steelmaking steel scrap bucket according to claim 1, it is characterised in that the coal cinder granularity being furnished with steel scrap bucket be 3 ~
6mm。
5. pneumatic steelmaking steel scrap bucket according to claim 4, it is characterised in that coal cinder gross mass accounts for steel scrap gross mass
0.5~5.0%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720485136.5U CN207062316U (en) | 2017-05-04 | 2017-05-04 | Pneumatic steelmaking steel scrap bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720485136.5U CN207062316U (en) | 2017-05-04 | 2017-05-04 | Pneumatic steelmaking steel scrap bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207062316U true CN207062316U (en) | 2018-03-02 |
Family
ID=61505639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720485136.5U Expired - Fee Related CN207062316U (en) | 2017-05-04 | 2017-05-04 | Pneumatic steelmaking steel scrap bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207062316U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728176A (en) * | 2018-04-16 | 2018-11-02 | 东北大学 | A kind of method of gas reforming in scrap steel preheating system |
| CN109593905A (en) * | 2018-12-04 | 2019-04-09 | 天津钢铁集团有限公司 | Steel scrap baking method in a kind of Converter |
| CN114836591A (en) * | 2022-05-05 | 2022-08-02 | 湖南华菱涟源钢铁有限公司 | Method for top-blowing bottom-side-sucking composite baking of scrap steel in scrap steel tank |
-
2017
- 2017-05-04 CN CN201720485136.5U patent/CN207062316U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728176A (en) * | 2018-04-16 | 2018-11-02 | 东北大学 | A kind of method of gas reforming in scrap steel preheating system |
| CN108728176B (en) * | 2018-04-16 | 2020-11-03 | 东北大学 | Method for modifying coal gas in scrap steel preheating system |
| CN109593905A (en) * | 2018-12-04 | 2019-04-09 | 天津钢铁集团有限公司 | Steel scrap baking method in a kind of Converter |
| CN114836591A (en) * | 2022-05-05 | 2022-08-02 | 湖南华菱涟源钢铁有限公司 | Method for top-blowing bottom-side-sucking composite baking of scrap steel in scrap steel tank |
| CN114836591B (en) * | 2022-05-05 | 2023-09-22 | 湖南华菱涟源钢铁有限公司 | Method for composite roasting of scrap steel by top blowing and bottom side suction of scrap steel tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20210504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |