CN104404185A - Blast furnace slag quantification splitting device and splitting method - Google Patents
Blast furnace slag quantification splitting device and splitting method Download PDFInfo
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- CN104404185A CN104404185A CN201410695189.0A CN201410695189A CN104404185A CN 104404185 A CN104404185 A CN 104404185A CN 201410695189 A CN201410695189 A CN 201410695189A CN 104404185 A CN104404185 A CN 104404185A
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- slag
- runner
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- intercepting flashboard
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
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Abstract
The invention discloses a blast furnace slag quantification splitting device and splitting method. The splitting device comprises a three-way splitting slag runner, a closure flashboard and a closure flashboard operation device; the three-way splitting slag runner comprises a main slag runner and a slag splitting branching opening formed in the side wall of the main slag runner; a slag inlet is formed in one end of the main slag runner, and a slag outlet is formed in the other end of the main slag runner; the closure flashboard is arranged in the main slag runner and between the slag outlet and the slag splitting branching opening; the closure flashboard operation device controls operation of the closure flashboard. The splitting method comprises the following steps: S91, rotating the closure flashboard to the direction inclined in the vertical direction of the main slag runner; S92, lowering the rotated closure flashboard to the bottom of the main slag runner; S93, rotating the closure flashboard in the vertical direction of the main slag runner; S94, lifting the closure flashboard until reaching the required receiving amount. The furnace slag quantification splitting device and splitting method can achieve the purpose of quantitatively splitting a small amount of slag from a blast furnace runner, and have the advantages of easy implementation, low failure rate, and convenient maintenance.
Description
Technical field
The present invention relates to metallurgic furnace field of furnace slag treatment, particularly a kind of blast furnace slag quantification part flow arrangement and shunt method.
Background technology
Blast furnace slag is a large byproduct of blast furnace ironmaking production process, be characterized in into molten state, temperature more than 1400 DEG C, not iron content liquid substantially.Current blast furnace slag mainly adopts high pressure water chilling water quenching method to be processed into grain slag (glassiness is greater than 90%), and then grain slag grinding after deironing is become micro mist, and is applied in construction cement industry.In blast furnace cinder water quenching process, not only need to consume a large amount of water high-temperature slag is cooled, when blast furnace burst can not normally be produced, then need blast furnace slag to be switched to immediately air cooling dry scoriform state (emergency function), and above operation all can produce secondary pollution problem.In order to promote the potential high added value of blast furnace slag, high value added product part blast furnace slag being processed into other is best selection, and utilize the sensible heat of blast furnace slag to carry out sensible heat that on-line machining takes full advantage of again blast furnace slag, be the new technique direction of Exposure degree technique extension of blast furnace slag.
The main raw material shunted online by blast furnace slag as slag wool production, devitrified glass is the ripe direction that current blast furnace slag fully utilizes, but because of the blast furnace slag limited amount (being only single seat blast furnace slag generating capacity 5% ~ 10%) that current slag wool production or devitrified glass utilize, thus carry out in high furnace slag discharge operation process quantification shunting slag be realize the primary condition that blast furnace slag deep processing becomes mineral wool or devitrified glass.In addition, with the process of high furnace slag discharge, quality and the temperature of slag also constantly change, namely the slag temperature of middle and later periods and quality will be better than the slag in early stage, and can cause slag runner erosion progressively because slag washes away slag runner for a long time, and slag runner edge can cohere the solid slag of some amount in slag discharge process.Produce to mineral wool or devitrified glass processing the primary condition that line is optimum utilization high-temperature slag at blast furnace middle and later periods shunting slag.From the blast furnace residue channel normal productive process, shunt a small amount of slag (flow of shunting slag needs basicly stable, so that follow-up modified operation), and adopt and can not affect normal Water Quenching Slag operation before and after shunting new technology and will inevitably there is certain risk,
At present blast furnace slag is carried out the mature technology of effectively shunting for putting dry slag operation, namely place in dry pit and connect slag container, must continue to put dry slag operation after realizing shunting by dry slag runner, namely cannot again recover Water Quenching Slag operation, thus cause the waste of blast furnace slag resource.Even if adopt shunting mode of simply building a dam also can bring larger difficulty because of factors such as slag runner erosion condition, bank slagging scorification and slag runner high flow rates simultaneously.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of blast furnace slag quantification part flow arrangement and shunt method are proposed, on the impact of original main slag runner with change little, quantification from blast furnace slag can be reached and shunt the object of a small amount of slag, simple to operate, easy enforcement, failure rate is low, easy to maintenance.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:
The invention provides a kind of blast furnace slag quantification part flow arrangement, it comprises: distributing T-pipe slag runner, intercepting flashboard and intercepting flashboard operating gear, described distributing T-pipe slag runner comprises main slag runner, a slag shunting mouth, described main slag runner one end is slag entrance, the other end is slag exit, a described slag shunting mouth is positioned on the sidewall of described main slag runner, and is connected with described main slag runner, and the bottom of bottom higher than described main slag runner of mouth is propped up in described slag shunting; Described intercepting flashboard is arranged in described main slag runner, shunts between a mouth, described intercepting flashboard is offered porose at the slag exit of described main slag runner and described slag; Described intercepting flashboard operating gear is connected with described intercepting flashboard, controls the operation of described intercepting flashboard.
The present invention directly offers a slag shunting mouth on original slag runner, on the change of main slag runner and impact little, Water Quenching Slag operation is not affected, intercepting flashboard arranges perforate, do not need the height of Artificial Control intercepting flashboard to realize required captured area, only intercepting flashboard need be dropped to bottom contact main slag runner, unnecessary slag can pass offered hole continuation punching grain slag operation, simple to operate, easily implement.
Preferably, described intercepting flashboard operating gear comprises support, swivel arrangement, lifting device, base, wherein: described support is connected with described base, for supporting described swivel arrangement and described lifting device, described lifting device is connected with described swivel arrangement, and described swivel arrangement is connected with described intercepting flashboard.When not needing slag to shunt, intercepting flashboard is in the highest stand-by station, when needs are shunted, intercepting flashboard is first rotated the direction to tilting with main slag runner vertical direction, then intercepting flashboard is dropped in main slag runner, contact slag, rotated the vertical direction to main slag runner again, slag is allowed to produce difference of altitude in the front and back of intercepting flashboard, the iron blast furnace slag that do not contain on slag stream top is rerouted to special slag take-off machinery from a slag shunting mouth, may be used for slag wool production or devitrified glass, allow simultaneously and continue the operation of punching grain slag containing iron blast furnace slag bottom slag runner, only need intercepting flashboard to promote completing when slag accesses operation.Swivel arrangement is set, intercepting flashboard first can be rotated to the direction tilted with main slag runner vertical direction, easy like this intercepting flashboard to be transferred, because have slag in main slag runner to cohere, directly intercepting flashboard is directly put down from main slag runner vertical direction and be not easy, slag coheres and can have an impact to the operation of intercepting flashboard, intercepting flashboard is first rotated an angle, easily intercepting flashboard can be transferred to working position, the slag cohered can melt by this moment slag rising, again intercepting flashboard is rotated to vertical position just than being easier to, the abundant combination of intercepting flashboard and main slag runner can be realized.
Preferably, described hole is square hole, and described square hole is opened in the centre of described intercepting flashboard.When damming in order to reach the object of quantification, need the captured area regulating intercepting flashboard, in the middle of intercepting flashboard, square hole is set, as long as bottom intercepting flashboard being transferred to loose slot can realize the object of a slag shunting mouth slag flow quantification, the bottom of square hole is immersed in slag, and unnecessary slag continues to flow to grain slag operation by square hole.This intercepting flashboard does not need the falling head by controlling flashboard to control captured area, is difficult to the falling head controlling flashboard when high temperature furnace slag operation.
Preferably, the area of described square hole be described intercepting flashboard area ~, the footprint of described intercepting flashboard is determined according to the flow of former slag stream and the slag flow of needs intercepting, can ensure that the quantity of slag more than needed can keep former slag smoothness logical simultaneously, square hole area sets at consideration flow (in blast furnace maximum slag stream situation) more than needed, be set as described intercepting flashboard area ~, can ensure to intercept slag flow, former blast furnace slag stream stable conditions can be ensured again.
Preferably, also comprise safety brake, described safety brake is arranged at a described slag shunting mouth place.When the slag accessed by slag shunting mouth reaches aequum, need in time intercepting flashboard to be promoted, if intercepting flashboard can not be mentioned in time or be promoted not in place, there will be and access slag runner and continue stream slag, finally can cause the risk that furnace equipment overflows.After safety brake is set, when reaching aequum, safety brake is transferred, just the slag having blocked a slag shunting mouth place continues to flow to take-off machinery, effectively prevent to promote in time because of equipment failure intercepting flashboard or block because slag runner cause liquid level in main slag runner too high and make slag continue to flow to the danger of a slag shunting mouth.
Preferably, be provided with loose slot in described main slag runner, the width of described loose slot and the degree of depth are greater than width and the degree of depth of described main slag runner.It is movable wherein that described loose slot is used for described intercepting flashboard, and the width of its width and the main slag runner of depth ratio and the degree of depth are slightly large, facilitate the activity of intercepting flashboard.
Preferably, the width of main slag runner described in the width of described loose slot and depth ratio and the large 3 ~ 5mm of the degree of depth.The main slag runner of loose slot is slightly dark, and the object of loose slot is to provide the activity space of flashboard, should not be too dark or too shallow, deeply this region not only can be caused to cohere seriously, and former slag runner size will be caused to diminish very much, if too shallow, then can not ensure flashboard activity space.
Preferably, the material of a described slag shunting mouth is refractory materials.
The present invention also provides a kind of blast furnace slag quantification shunt method, and it comprises the following steps:
S91: intercepting flashboard is rotated the direction extremely tilted with described main slag runner vertical direction;
S92: postrotational intercepting flashboard is dropped to the bottom contacting main slag runner;
S93: the intercepting flashboard after decline is rotated the vertical direction to main slag runner, makes the slag before and after intercepting flashboard produce difference of altitude, and the slag on main slag runner top is rerouted to slag shunting and props up a mouth place;
S94: when the slag amount flowing out a slag shunting mouth reaches aequum, intercepting flashboard is mentioned.
Preferably, also comprise between step S93 and step S94, S101: when the slag amount flowing out a slag shunting mouth reaches aequum, put down the safety brake at a described slag shunting mouth place, block slag and continue to flow to a described slag shunting mouth.
Compared to prior art, the present invention has the following advantages:
(1) blast furnace slag quantification part flow arrangement provided by the invention, the sidewall of original main slag runner is offered a slag shunting mouth, to reach the object shunting a small amount of slag from the normal blast furnace residue channel produced; Simple to operate, easy enforcement, failure rate is low;
(2) intercepting flashboard arranges square hole, easily control the captured area of intercepting flashboard, only intercepting flashboard need be transferred to loose slot just passable, not need the falling head of Artificial Control intercepting flashboard, easily realize, simple to operate;
(3) loose slot being used for intercepting flashboard activity is set in main slag runner, facilitates the operation of flashboard;
(4) a slag shunting mouth place arranges safety brake, can effectively avoid intercepting flashboard not mention in time or slag runner liquid level rises time cause slag to be shunted danger that a mouth continues stream slag;
(5) blast furnace slag quantification shunt method of the present invention, simple to operate, easily implements, and effectively can shunt on the basis not blocking original grain slag operation; By transferring safety brake at a slag shunting mouth place, effectively avoid the danger that continuation stream slag causes electric furnace to overflow.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the present invention are described further:
Fig. 1 is the structural representation of distributing T-pipe slag runner of the present invention;
Fig. 2 is the structural representation of the intercepting flashboard of embodiments of the invention 1;
Fig. 3 is the structural representation of the blast furnace slag part flow arrangement of embodiments of the invention 1;
Fig. 4 is the structural representation of the blast furnace slag part flow arrangement of embodiments of the invention 2;
Fig. 5 is the structural representation of the distributing T-pipe slag runner of embodiments of the invention 3;
Fig. 6 is the operational flowchart of the blast furnace slag shunt method of embodiments of the invention 4;
Fig. 7 is the operational flowchart of the blast furnace slag shunt method of embodiments of the invention 5.
The main slag runner of label declaration: 1-, a 2-slag shunting mouth, 3-intercepting flashboard, 4-support, 5-swivel arrangement, 6-lifting device, 7-base, 8-safety brake, 9-square hole, 10-loose slot.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
embodiment 1:
As Figure 1-3, show the structure of the blast furnace slag quantification part flow arrangement of the present embodiment, the present embodiment specifically describes blast furnace slag quantification part flow arrangement of the present invention, and it comprises distributing T-pipe slag runner, intercepting flashboard 3 and intercepting flashboard operating gear.As shown in Figure 1, comprise main slag runner 1 and a slag shunting mouth 2, a slag shunting mouth 2 is positioned on the sidewall of main slag runner 1 distributing T-pipe slag runner, and is connected with main slag runner 1, and slag shunts the bottom of bottom higher than main slag runner 1 of a mouth 2; Intercepting flashboard 3 is offered porose, intercepting flashboard 3 is arranged at the slag exit of main slag runner and slag is shunted between a mouth 2, for tackling slag, make it before and after intercepting flashboard, produce difference of altitude, make slag shunt a mouth 2 place slag liquid level to rise, higher than the bottom of a slag shunting mouth 2, thus the slag on top is made to flow into a slag shunting mouth 2.
Intercepting flashboard 3 is offered porose, so only intercepting flashboard 3 need be transferred to the object that can reach quantification bottom contact loose slot, what do not need Artificial Control intercepting flashboard 3 transfers height, because the temperature of blast furnace slag is very high, is difficult to accurately control transferring highly of intercepting flashboard 3.On intercepting flashboard after providing holes, only intercepting flashboard 3 need be transferred to bottom contact loose slot, the below in hole invades in slag, and unnecessary slag can pass hole direct punching grain slag operation.
The intercepting flashboard operating gear of the present embodiment comprises support 4, swivel arrangement 5, lifting device 6 and base 7, support 4 is supported on base 7, for support rotation device 5 and lifting device 6, swivel arrangement 5 is connected with intercepting flashboard 3, for rotating intercepting flashboard 3, swivel arrangement 5 is connected on lifting device 6, and lifting device 6 can be elevated by driven rotary device 5, thus drives intercepting flashboard 3 to be elevated.When needs access slag, intercepting flashboard 3 is rotated the direction to tilting with main slag runner 1 vertical direction by swivel arrangement 5, then intercepting flashboard 3 is dropped to desired height by lifting device 6, then is rotated to the direction vertical with main slag runner 1, at utmost tackles slag.Slag produces certain difference of altitude before and after intercepting flashboard 3, and slag stays the nonferrous slag on top to change and flows to, and flows out to special slag take-off machinery from a slag shunting mouth, and the iron blast furnace slag that contains simultaneously bottom main slag runner 1 continues the operation of punching grain slag.Intercepting flashboard is extracted out completing when slag accesses operation, rise to certain position.
The present embodiment arranges a shunting mouth on former slag runner, and to reach the object shunting a small amount of slag from the blast furnace residue channel normal productive process, risk is little, simple to operate, does not affect original grain slag operation.
In preferred embodiment, the hole of intercepting flashboard 3 is square hole 10, is opened in the centre of intercepting flashboard 3, the area of square hole 10 be the area of intercepting flashboard 3 ~.
embodiment 2:
As shown in Figure 4, for the structural representation of the blast furnace slag quantification part flow arrangement of the present embodiment, it is on the basis of embodiment 1, in slag shunting, mouth 2 place arranges safety brake 9, when the slag amount flowing through slag shunting mouth 2 place reaches the amount needed for take-off machinery, safety brake 9 is put down, blocks slag and continue to flow to a slag shunting mouth 2.When not mentioning in time due to equipment failure intercepting flashboard or slag runner blocks, liquid level in main slag runner 1 can raise, slag can continue to flow to a slag shunting mouth, continue the danger that stream slag can cause slag take-off machinery place electric furnace to overflow, after safety brake 9 is set, just can block in time and continue stream slag, thus avoid the danger caused of overflowing.
embodiment 3:
As shown in Figure 5, for the structural representation of the distributing T-pipe slag runner of the present embodiment, it is on the basis of embodiment 1, in main slag runner 1, arrange loose slot 10, loose slot 1 is positioned at a slag shunting mouth place of main slag runner 1, and the width of loose slot 10 and the degree of depth are a bit larger tham width and the degree of depth of main slag runner 1.
In preferred embodiment, the width of the width of loose slot 10 and the main slag runner of depth ratio 1 and the large 3 ~ 5mm of the degree of depth, can facilitate intercepting flashboard 3 decline wherein, rotation process, and can not have an impact to main slag runner 1.
embodiment 4:
As shown in Figure 6, be the operational flowchart of the blast furnace slag quantification shunt method of the present embodiment, the present embodiment describes blast furnace slag quantification shunt method of the present invention in detail, and the method specifically comprises the following steps:
S91: when a small amount of slag shunted by needs, rotating the direction to tilting with described main slag runner 1 vertical direction, successfully can drop to desired height by intercepting flashboard 4;
S92: postrotational intercepting flashboard 3 is dropped to the bottom contacting main slag runner;
S93: the intercepting flashboard after declining is rotated to the direction vertical with main slag runner, it is made farthest to tackle slag, slag before and after intercepting flashboard produces difference of altitude, and the nonferrous slag in slag stream top is rerouted to slag shunting mouth 2 place, flows to slag take-off machinery from a slag shunting mouth 2;
S94: when the slag amount flowing out a slag shunting mouth 2 reaches aequum, when namely reaching slag take-off machinery aequum, intercepting flashboard 3 is mentioned.
embodiment 5:
As shown in Figure 7, for the operational flowchart of the blast furnace slag quantification shunt method of the present embodiment, the present embodiment is on the basis of embodiment 4, step S101 is added: when the slag amount flowing out a slag shunting mouth 2 reaches aequum between step S93 and step S94, the safety brake 9 at slag shunting mouth 2 place is transferred, blocks slag and continue to flow to a slag shunting mouth 2.
In above-described embodiment, a slag shunting mouth 2 adopts refractory materials to make.
Disclosed herein is only the preferred embodiments of the present invention, and this specification sheets is chosen and specifically described these embodiments, and being to explain principle of the present invention and practical application better, is not limitation of the invention.The modifications and variations that any those skilled in the art do within the scope of specification sheets, all should drop in scope that the present invention protects.
Claims (10)
1. a blast furnace slag quantification part flow arrangement, is characterized in that, comprising:
Distributing T-pipe slag runner, it comprises main slag runner, a slag shunting mouth, described main slag runner one end is slag entrance, the other end is slag exit, a described slag shunting mouth is positioned on the sidewall of described main slag runner, and be connected with described main slag runner, the bottom of bottom higher than described main slag runner of mouth is propped up in described slag shunting;
Intercepting flashboard, it is arranged in main slag runner, shunts between a mouth, described intercepting flashboard is offered porose at the slag exit of described main slag runner and described slag;
Intercepting flashboard operating gear, it is connected with described intercepting flashboard, controls the operation of described intercepting flashboard.
2. blast furnace slag quantification part flow arrangement according to claim 1, is characterized in that, described intercepting flashboard operating gear comprises support, swivel arrangement, lifting device, base, wherein:
Described support is connected with described base, and for supporting described swivel arrangement and described lifting device, described lifting device is connected with described swivel arrangement, and described swivel arrangement is connected with described intercepting flashboard.
3. blast furnace slag quantification part flow arrangement according to claim 1, is characterized in that, described hole is square hole, and described square hole is arranged on the centre of described intercepting flashboard.
4. blast furnace slag quantification part flow arrangement according to claim 3, is characterized in that, the area of described square hole be described intercepting flashboard area ~.
5. blast furnace slag quantification part flow arrangement according to claim 1, is characterized in that, also comprise safety brake, and described safety brake is arranged at a described slag shunting mouth place.
6. blast furnace slag quantification part flow arrangement according to claim 1, is characterized in that, is provided with loose slot in described main slag runner, movable wherein for intercepting flashboard, and the width of described loose slot and the degree of depth are greater than width and the degree of depth of described main slag runner.
7. blast furnace slag quantification part flow arrangement according to claim 6, is characterized in that, the width of main slag runner described in the width of described loose slot and depth ratio and the large 3 ~ 5mm of the degree of depth.
8. the blast furnace slag quantification part flow arrangement according to any one of claim 1 to 7, is characterized in that, the material of a described slag shunting mouth is refractory materials.
9. a blast furnace slag quantification shunt method, is characterized in that, comprises the following steps:
S91: intercepting flashboard is rotated the direction extremely tilted with described main slag runner vertical direction;
S92: postrotational intercepting flashboard is dropped to the bottom contacting main slag runner;
S93: the intercepting flashboard after decline is rotated the vertical direction to main slag runner, makes the slag before and after intercepting flashboard produce difference of altitude, and the slag on main slag runner top is rerouted to slag shunting and props up a mouth place;
S94: when the slag amount flowing out a slag shunting mouth reaches aequum, intercepting flashboard is mentioned.
10. blast furnace slag quantification shunt method according to claim 9, is characterized in that, also comprise between step S93 and step S94,
S101: when the slag amount flowing out a slag shunting mouth reaches aequum, put down the safety brake at a described slag shunting mouth place, blocks slag and continues to flow to a described slag shunting mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695189.0A CN104404185B (en) | 2014-11-27 | 2014-11-27 | A kind of blast furnace cinder quantification part flow arrangement and shunt method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410695189.0A CN104404185B (en) | 2014-11-27 | 2014-11-27 | A kind of blast furnace cinder quantification part flow arrangement and shunt method |
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| CN104404185A true CN104404185A (en) | 2015-03-11 |
| CN104404185B CN104404185B (en) | 2016-08-24 |
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| CN201560201U (en) * | 2009-12-08 | 2010-08-25 | 攀钢集团攀枝花钢钒有限公司 | Slag-iron separation device for vanadium-titanium blast furnace slag |
| CN102618678A (en) * | 2012-03-28 | 2012-08-01 | 攀钢集团西昌钢钒有限公司 | Blast furnace slag-iron separation device, slag-iron separation method and discharged blast furnace slag-iron recovery method |
| CN202482336U (en) * | 2012-01-16 | 2012-10-10 | 宝山钢铁股份有限公司 | System for taking molten slag of blast furnace in shunted mode |
| CN202643716U (en) * | 2012-04-25 | 2013-01-02 | 宝山钢铁股份有限公司 | Blast furnace part flow device |
| CN204265784U (en) * | 2014-11-27 | 2015-04-15 | 上海宝钢节能环保技术有限公司 | A kind of blast furnace slag quantification part flow arrangement |
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2014
- 2014-11-27 CN CN201410695189.0A patent/CN104404185B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201560201U (en) * | 2009-12-08 | 2010-08-25 | 攀钢集团攀枝花钢钒有限公司 | Slag-iron separation device for vanadium-titanium blast furnace slag |
| CN202482336U (en) * | 2012-01-16 | 2012-10-10 | 宝山钢铁股份有限公司 | System for taking molten slag of blast furnace in shunted mode |
| CN102618678A (en) * | 2012-03-28 | 2012-08-01 | 攀钢集团西昌钢钒有限公司 | Blast furnace slag-iron separation device, slag-iron separation method and discharged blast furnace slag-iron recovery method |
| CN202643716U (en) * | 2012-04-25 | 2013-01-02 | 宝山钢铁股份有限公司 | Blast furnace part flow device |
| CN204265784U (en) * | 2014-11-27 | 2015-04-15 | 上海宝钢节能环保技术有限公司 | A kind of blast furnace slag quantification part flow arrangement |
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