CN206940927U - Blast furnace cinder ditch stem bar - Google Patents
Blast furnace cinder ditch stem bar Download PDFInfo
- Publication number
- CN206940927U CN206940927U CN201720780579.7U CN201720780579U CN206940927U CN 206940927 U CN206940927 U CN 206940927U CN 201720780579 U CN201720780579 U CN 201720780579U CN 206940927 U CN206940927 U CN 206940927U
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- China
- Prior art keywords
- slag
- blast furnace
- stem bar
- furnace cinder
- side walls
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model discloses a kind of blast furnace cinder ditch stem bar, the blast furnace cinder ditch stem bar is made up of the refractory material and outside box hat that inner side is the erosion of anti-slag iron, the two side walls for being divided into bottom surface and being connected.Inside bottom surface is plane, and the bottom surface is connected with two side walls using chamfering or cambered surface.It is H that the chamfering or cambered surface, which are formed with the distance of horizontal plane where the minimum point of the horizontal plane where side wall intersection point to the bottom surface, and the minimum range between two side walls is L, wherein, L/H makes its Outlet Section formation flat more than 2.Blast furnace cinder ditch stem bar of the present utility model can make slag stream thickness thinning, be easy to washing slag water to be preferably punched through molten slag layer, so as to improve cooling effectiveness, improve the glass rate of grain slag, reduce the generation of slag wool or slag fiber, reduce environmental pollution, greatly improve the utilization rate of grain slag；It is also possible to reduce the water and hydraulic pressure of washing slag water, reduce the consumption of electric power.
Description
Technical field
Blast furnace slag processing technology field is the utility model is related to, especially a kind of blast furnace cinder ditch stem bar and flush slag processing
System.
Background technology
, it is known that blast furnace cinder is the byproduct of blast furnace ironmaking, blast furnace cinder water quenching technique is due to the grain slag quality after processing
Good, glass rate is high, makes the occupation rate of the technique up to more than 90%.Needed in blast furnace cinder water quenching handling process in slag ditch
Outlet, pelletizer top set molten cinder spout.Traditional slag channel gonys portion is semicircle, molten using centre during flush slag
Slag stream thickness is big, and washing slag water is not easy to penetrate slag, it is impossible to clinker is quickly cooled down, causes still in the slag-water slurry after granulation
There is bulk slag, bulk slag produces blast easily in water, influence production operation because the heat of inside cannot cool down in time
Safety.
Further, since the slag stream thickness from the outflow of conventional flow mouth structure is big, to ensure that current are penetrated, it is necessary to increase flushing cinder
The pressure and flow of water, water resource waste is higher, and the power consumption of supply equipment is larger, causes the cost of operation maintenance higher.Together
When, impacting with high pressure is also easy to produce a large amount of slag wool or slag fibers, not only causes environmental pollution, also influences the health and safety of operating personnel.
Chinese patent literature (notification number：CN202989189U a kind of blast furnace discharge yard slag runner) is disclosed, the slag runner includes
Steel casing, protection brick layer, working lining and repair layer, wherein, the repair layer positioned at innermost layer forms U-channel.The structure makes
With high-fire resistance and the ambiguity refractory material of shock resistance repairing abrasion slag runner, the repairing number of slag runner is reduced, reduces related dimension
Repair expense.But blast furnace cinder ditch cross sectional shape is not accounted for slag layer thickness and shape, and the effect to blast furnace slag quenching water
And influence, the glass rate of slag after blast furnace slag flushing is not accounted for yet, therefore, above mentioned problem is urgently to be resolved hurrily.
Utility model content
In view of the above-mentioned problems in the prior art, technical problem to be solved in the utility model is to provide a kind of height
Stove melts cinder spout and flush slag processing system.
In order to solve the above-mentioned technical problem, the utility model employs following technical scheme：
A kind of blast furnace cinder ditch stem bar, stem bar use double-layer structure, and outer layer is welding steel shell, and internal layer is that anti-slag iron is invaded
The refractory material of erosion；The bottom surface of internal layer and two side walls be connecteds using chamfering or cambered surface, form flat outlet shapes, it is described
Angle or cambered surface and the distance of the minimum point place horizontal plane of the horizontal plane where two side walls intersection point to the bottom surface are H, two
Minimum range between the side wall is L, wherein, L/H is more than 2.
Preferably, the bottom surface includes being located at the horizontal segment at middle part and is bent up respectively by the both ends of the horizontal segment
The side plate bending that Qu Yanshen is formed, the distal end of the side plate bending is connected with the base of the side wall.
Preferably, it is horizontal or cancave cambered surface among the bottom surface.
Preferably, the molten cinder spout uses metal material casting, water stream channel is set in the body of casting.
Preferably, the water stream channel is cast into by bended pipe and formed in the body of casting.
Preferably, the water stream channel is curvilinear or linear, and the fluid in adjacent two water stream channels
Flow direction it is opposite.
Preferably, two side walls roll tiltedly outwardly, and two side walls face outwardly and roll oblique inclination
Amplitude is identical.
Compared with prior art, blast furnace cinder ditch stem bar of the present utility model and flush slag processing system can make slag stream
Thickness is thinning, is easy to washing slag water to be preferably punched through molten slag layer, so as to improve cooling effectiveness, improves the glass rate of grain slag, reduces
The generation of slag wool or slag fiber, reduces environmental pollution, greatly improves the utilization rate of grain slag, furthermore it is also possible to reduce punching
The water and hydraulic pressure of pulp water, reduce the consumption of electric power, meanwhile, by by cast iron materials one-shot forming, and in molten cinder spout
Inside sets water stream channel, makes slag solidify to form one layer of slag solidification in the inner surface of stem bar when flowing into molten cinder spout
Layer, molten cinder spout will not be worn when follow-up slag is moved in molten cinder spout, so as to reduce molten cinder spout
Loss, improves the service life of blast furnace cinder ditch, and the molten cinder spout of this structure is either newly-built or transformation not shadows
Production is rung, use and maintenance cost is all more cheap.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model；
Fig. 2 is the structural representation of another embodiment of the present utility model；
Fig. 3 is the structural representation of another embodiment of the present utility model；
Fig. 4 is the structural representation of flush slag processing system of the present utility model.
Description of reference numerals：
1- melts cinder spout 11- bottom surfaces 12- side wall 111- horizontal segment 112- side plate bending 2- slag ditch ditch bodies 3-
Box hat 5- melts cinder spout working lining 6- blast furnace 61- tap cinder mouth 7- punching grooves or granulation tower 8- pelletizer 81- flushing cinders
Water out 9- water stream channels.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be different from other manner described here using other to be implemented, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of new intension, therefore the utility model is not limited by following public specific embodiment.
Secondly, the utility model combination schematic diagram is described in detail, when the utility model embodiment is described in detail, for ease of
Illustrate, represent that the profile of apparatus structure can disobey general proportion and make partial enlargement, and the schematic diagram is example, its
This should not limit the scope of the utility model protection.In addition, the three-dimensional space of length, width and depth should be included in actual fabrication
Between size.
The utility model provides a kind of blast furnace cinder ditch stem bar, wherein, blast furnace cinder ditch stem bar includes bottom surface and and bottom surface
Two side walls that both sides connect, the level where horizontal plane to the minimum point of the bottom surface where the peak of the bottom surface
The distance in face is H, and the minimum range between two side walls is L, wherein, L/H is more than 2, makes height by such structure
Slag layer thickness of the stove slag in slag ditch bottom reduces, and makes the washing slag water of pelletizer be easier to be punched through molten slag layer, so as to be lifted
Cooling effectiveness, the glass rate of grain slag is improved, reduce the generation of slag wool or slag fiber, the water and water of washing slag water can also be reduced
Pressure, reduces power consumption, specifically, the bottom surface can be gradual with fixed curvature from its center to two side wall directions
It is bent to form, or, the bottom surface can also gradually be extended with the curvature changed from its center to two side wall directions and be formed,
It is illustrated below by specific embodiment.
Embodiment one
As shown in Figure 1 to Figure 3, the present embodiment provides a kind of blast furnace cinder ditch, and it includes molten cinder spout, and stem bar uses two
Rotating fields, outer layer are the box hats 3 of welding steel shell, and internal layer is the molten cinder spout working lining for the refractory material that anti-slag iron corrodes
5, the inwall of the molten cinder spout 1 includes bottom surface 11 and two side walls 12 to connect respectively with the both sides of the bottom surface 11,
The bottom surface 11 of internal layer is connected with two side walls 12 using chamfering or cambered surface, forms flat outlet shapes, the chamfering or cambered surface
Distance with horizontal plane where the minimum point of the horizontal plane where two side walls intersection point to the bottom surface 11 is H, two sides
Minimum range between wall 12 is L, wherein, L/H ratio is more than 2.
Further, the bottom surface 11 is horizontal or cancave cambered surface, for example, in the present embodiment, the bottom surface 11 is semiellipse
Shape, certainly, the bottom surface 11 can also be other cambered surfaces, such as the arc surface or other cambered surfaces of non-semicircle.
Further, one end of the slag ditch ditch body 2 connects the molten cinder spout, the slag ditch ditch body 2 it is another
One end is connected to the slag notch of blast furnace 6.
With continued reference to Fig. 1, the stem bar is by being arranged on outermost box hat 3 and being arranged on the slag runner working lining structure of inner side
Into.Two side walls 12 roll tiltedly outwardly, so that molten cinder spout section configuration is in enlarging shape, so as to be formed under upper width
Narrow wedge-shaped ditch shape.
Preferably, the inclined magnitude of inclination in side is identical outwardly for two side walls 12, easily fabricated.
In the present embodiment, when L/H ratio more be more than 2, melt cinder spout inboard width compared to slag ditch on the inside of
Width broadens, consequently facilitating slag stream is preferably laid in the bottom of blast furnace cinder ditch stem bar, makes slag stream in the thickness of stem bar
It is thinning, it is easy to washing slag water to be punched through slag stream, is easy to slag quickly to cool down, and the operation hydraulic pressure of washing slag water supply equipment can be reduced,
The operating pressure of washing slag water supply equipment is reduced, saves the energy；A large amount of slag wool or slag fibers are not likely to produce after slag granulating, are subtracted
Few environmental pollution and the influence to health.
When it is implemented, the width dimensions of blast furnace cinder ditch stem bar typically match with blast furnace cinder ditch outlet size, L with
When H ratio meets to be more than 2, the cross sectional shape of the bottom surface 11 is the arc-shaped of half elliptic or other non-semicircles, then can
Enough meet the technical requirements that slag preferably tiles in the bottom of molten cinder spout, for example, when the bottom surface 11 peak (i.e.
The chamfering or cambered surface and the intersection point of two side walls 12) where horizontal plane to the minimum point of the bottom surface 11 where horizontal plane
When distance H is 0.15m, L is more than 0.3m.
Embodiment two
Reference picture 2, the present embodiment are the improvement on the basis of embodiment one, specifically, it provides a kind of blast furnace cinder
Ditch stem bar, the blast furnace cinder ditch stem bar include bottom surface 11 and two side walls to connect respectively with the both sides of the bottom surface 11
12, the bottom surface 11 includes being located at the horizontal segment 111 at middle part and is bent upwards extension respectively by the both ends of the horizontal segment 111
The side plate bending 112 of formation, the distal end of the side plate bending 112 are connected with the base of the side wall.
In the present embodiment, the middle part of bottom surface 11 of the molten cinder spout has horizontal segment 111, and slag of being more convenient for is at ditch body bottom
The tiling in portion, while the thickness of slag stream can also be reduced, washing slag water of being more convenient for is punched through slag stream, is easy to slag quickly to cool down,
Minimum range L between two side walls 12 of the slag ditch in the present embodiment and bottom surface 11 peak (i.e. described chamfering or
Cambered surface and the intersection point of two side walls 12) where horizontal plane to the minimum point of the bottom surface 11 where horizontal plane distance H ratio
Value is also greater than 2.
In the present embodiment, it is bent upwards to form two side plate bendings respectively in the both sides of the bottom surface 11 of the molten cinder spout
112, avoid slag and form slag adhesion layer at the bottom corners of molten cinder spout, improve slag tap speed and granulation effect
Fruit.
Embodiment three
Reference picture 3, the utility model embodiment further provide for a kind of blast furnace cinder ditch, and the present embodiment is in embodiment two
On the basis of improvement, specifically, the refractory masses section structure of the blast furnace cinder ditch stem bar in the present embodiment be have one
The resistance to material of ambiguity for determining thickness is formed, or casting, the metal material can use in a mold using metal material
Cast iron etc., it has good thermal conductivity.
Further, water stream channel 9 is set in cinder spout 1 is melted made of metal material, and the water stream channel 9 is along molten
Slag flow direction is set, in addition, the water stream channel 9 can be provided only in the bottom surface of the molten cinder spout 1, in use,
The water flowing into the water stream channel 9, makes the inner side temperature of molten cinder spout 1 reduce, and the molten of blast furnace cinder ditch is flowed into from blast furnace
Slag, by low temperature effect, can solidify to form one layer of slag solidification protection when by molten cinder spout 1 in the inner surface of stem bar
Layer, follow-up slag contact when by molten cinder spout 1 with slag solidification protective layer, without with molten cinder spout working lining
Contact, so as to avoid the abrasion to stem bar working lining, improves the service life of blast furnace cinder ditch stem bar, reduces maintenance expense
With；So that follow-up slag will not cause to wear in flow process to the working lining for melting cinder spout, so as to improve slag
The service life of ditch stem bar working lining, reduce maintenance cost.
In above-described embodiment, with further reference to Fig. 3, water stream channel 9 has a plurality of and along slag flow direction, is flowing respectively
It is set up in parallel in the bottom surface of mouth, such structure can make the cooling effect of slag ditch stem bar working face various pieces try one's best one
Cause.
Preferably, the shape of water stream channel 9 can be arranged as required to, such as snakelike or linear etc., in the present embodiment
For the fluid (water) in snakelike and adjacent two water stream channels 9 flow direction on the contrary, so can further make in stem bar
The cooling effect of diverse location more they tends to unanimously, enable the diverse location of the working lining of molten cinder spout form what is be more uniformly distributed
Slag protective layer.
Reference picture 4, the utility model further provide for a kind of flush slag processing system, including blast furnace 6, punching groove or granulation
Tower 7, pelletizer 8 and above-mentioned blast furnace cinder ditch, specifically, the pelletizer 8 is arranged on the lower section of the molten cinder spout 1,
The end of the molten cinder spout 1 is relative with the feeding mouth of the granulation tower 7.
When it is implemented, when blast furnace 6 is smelted and produces molten iron, byproduct-high-temperature slag caused by blast furnace 6 passes through slag ditch
Into molten cinder spout 1, the flow section shape of slag produces change, and the thickness of molten slag layer is thinning, and now slag continues forward
Flowing, with certain molten cinder spout 1 of speed outflow and fall, while outflow molten cinder spout 1, the washing slag water of pelletizer
Outlet sprays washing slag water, the high-temperature slag from the outflow of molten cinder spout is penetrated in time, after flushing cinder penetration by water smashes slag, with pulp water
Mixture together falls into punching groove or granulation tower 7 carries out quick granulation cooling, and slag is quickly cooled down by liquid phase realizes that petrofacies change,
High-vitrification crystal slag particle is obtained, slag-water slurry sloughs moisture therein, obtain qualified grain slag by further separating and filtering
Grain, due to molten slag layer thickness when by molten cinder spout it is thinning so that washing slag water is easier to be punched through molten slag layer, flushing cinder hydraulic pressure
Power can reduce by 20% compared with common slag runner structure, can also reduce pump head, power consumption and common slag runner structure phase
Than 30% can be reduced.Improve the cooling effectiveness of washing slag water so that silicate and aluminium are generated when slag liquid-phase conversion is solid phase
Hydrochlorate percent crystallization in massecuite is higher, improves the glass rate of grain slag, and glass rate can reach 98%.Reduce slag wool or slag fiber in addition
Generation, greatly improve the quality of grain slag, grain slag quality can be promoted to superfine from one-level, in addition, reducing environment
Pollution, greatly improves the utilization rate of grain slag, and the molten cinder spout of this spline structure is either newly-built or transformation does not affect life
Production, use and maintenance cost are all more cheap.
Above example is only exemplary embodiment of the present utility model, is not used in limitation the utility model, and this practicality is new
The protection domain of type is defined by the claims.Those skilled in the art can be in essence of the present utility model and protection domain
It is interior, various modifications or equivalent substitution are made to the utility model, this modification or equivalent substitution also should be regarded as new in this practicality
In the protection domain of type.
Claims (7)
1. a kind of blast furnace cinder ditch stem bar, it is characterised in that stem bar uses double-layer structure, and outer layer is welding steel shell, internal layer
The refractory material corroded for anti-slag iron；The bottom surface of internal layer is connected with two side walls using chamfering or cambered surface, forms flat outlet
Shape, horizontal plane where the chamfering or cambered surface and two side walls intersection point to the minimum point place horizontal plane of the bottom surface away from
From for H, the minimum range between two side walls is L, wherein, L/H is more than 2.
2. blast furnace cinder ditch stem bar according to claim 1, it is characterised in that the bottom surface includes the level positioned at middle part
Section and the side plate bending that is formed of extension, the distal end of the side plate bending and the side are bent upwards respectively by the both ends of the horizontal segment
The base connection of wall.
3. blast furnace cinder ditch stem bar according to claim 1, it is characterised in that be horizontal or concave arc among the bottom surface
Face.
4. blast furnace cinder ditch stem bar according to claim 3, it is characterised in that the molten cinder spout uses metal material
Casting, the body of casting is interior to set water stream channel.
5. blast furnace cinder ditch stem bar according to claim 4, it is characterised in that the water stream channel is cast into by bended pipe
Formed in the body of casting.
6. blast furnace cinder ditch stem bar according to claim 5, it is characterised in that the water stream channel is curvilinear or straight line
Shape, and the flow direction of the fluid in adjacent two water stream channels is opposite.
7. blast furnace cinder ditch stem bar according to claim 1, it is characterised in that two side walls roll outwardly
Tiltedly, and two side walls face outwardly that to roll oblique magnitude of inclination identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780579.7U CN206940927U (en) | 2017-06-30 | 2017-06-30 | Blast furnace cinder ditch stem bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780579.7U CN206940927U (en) | 2017-06-30 | 2017-06-30 | Blast furnace cinder ditch stem bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206940927U true CN206940927U (en) | 2018-01-30 |
Family
ID=61366466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720780579.7U Active CN206940927U (en) | 2017-06-30 | 2017-06-30 | Blast furnace cinder ditch stem bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN206940927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142345A (en) * | 2017-06-30 | 2017-09-08 | 秦冶工程技术(北京)有限责任公司 | Blast furnace cinder ditch stem bar |
-
2017
- 2017-06-30 CN CN201720780579.7U patent/CN206940927U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142345A (en) * | 2017-06-30 | 2017-09-08 | 秦冶工程技术(北京)有限责任公司 | Blast furnace cinder ditch stem bar |
| CN107142345B (en) * | 2017-06-30 | 2023-09-12 | 秦冶工程技术(北京)有限责任公司 | Blast furnace slag channeling nozzle |
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