CN106086311A - A kind of method reducing KR desulfurization processing means setting height(from bottom) - Google Patents
A kind of method reducing KR desulfurization processing means setting height(from bottom) Download PDFInfo
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- CN106086311A CN106086311A CN201610475201.6A CN201610475201A CN106086311A CN 106086311 A CN106086311 A CN 106086311A CN 201610475201 A CN201610475201 A CN 201610475201A CN 106086311 A CN106086311 A CN 106086311A
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- Prior art keywords
- agitator
- desulfurization
- height
- desulfurizing agent
- processing means
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of method reducing KR desulfurization processing means setting height(from bottom), including following installation steps: reduce riser guide apparatus elevation of top, process in KR desulfurization and replacing agitator standby position is set below position main operation platform, reduce the height at riser guide top；Reduce the absolute altitude of agitator change bit, process in KR desulfurization and below position main operation platform, agitator change bit is set, by reducing the height of agitator change bit；Reducing feed bin elevation of top in KR desulfurization station, desulfurizing agent storage bin is arranged in desulfurization station adjacent area, be delivered to by desulfurizing agent in desulfurization station in receiver bin by carrying pipe under storage bin, receiver bin is arranged on desulfurization platform.The purpose arranging KR desulfurization processing means under the conditions of low rail level absolute altitude is achieved by the installation method of the present invention.
Description
Technical field
The invention belongs to hot metal in steelmaking pretreatment KR sulfur removal technology technical field, be specifically related to a kind of at low rail level absolute altitude bar
The method reducing KR desulfurization processing means setting height(from bottom) under part, to adapt to the equipment installation under low rail level absolute altitude.
Background technology
The requirement the highest to steel grade quality in order to meet market, is the most all making great efforts to reduce impurity in steel, especially
It is to reduce sulfur content to improve steel product quality.Therefore it provides low-sulfur molten steel is the essential condition that sequence casting produces qualified strand.
, there is single-station, double etc. multiple in the existing desulfurizing iron of domestic each steel mill more employing KR desulfurization processing means
The technological design scheme of form.The agitator of KR desulfurization is typically carried out more on main operation platform by these technological design schemes
Change.When i.e. changing agitator, need agitator to be promoted to the above certain altitude of main operation platform, by the agitator on platform more
Change trains out to agitator, just can be replaced agitator.So required rail level absolute altitude in the span at KR desulfurizer place
General higher.For KR desulfurization processing means supporting in newly-built steel mill, perhaps there is no problem for this, but for existing steel-making car
In newly-increased KR desulfurization processing means, then there may be steelshop KR desulfurization zone crane rail level and can not meet on agitator more
Change required hoisting depth requirement, the most just seek a kind of new technological design scheme.
Summary of the invention
It is an object of the invention to provide a kind of reduction KR desulfurization processing means setting height(from bottom) under the conditions of low rail level absolute altitude
Method, the method can install in the case of the crane rail level absolute altitude deficiency of steelshop KR desulfurization zone KR desulfurization process dress
Put.The present invention solves the scheme that technical problem used:
A kind of method reducing KR desulfurization processing means setting height(from bottom), including following installation steps:
(1) reduce riser guide apparatus elevation of top, process in KR desulfurization and arrange more below the 0.000m main operation platform of position
Change agitator standby position, the distance 1200～1500mm between standby position and 0.000m main operation platform, stir by reducing replacing
Mix a standby position height to reduce agitator stroke, thus reduce the height at riser guide top；
(2) reduce the absolute altitude of agitator change bit, process in KR desulfurization and below the 0.000m main operation platform of position, stirring is set
Device change bit, the distance 5000～7000mm between change bit and 0.000m main operation platform, by reducing agitator change bit
Height, it is achieved under the conditions of low rail level absolute altitude arrange KR desulfurizer；
(3) reduce feed bin elevation of top in KR desulfurization station, desulfurizing agent storage bin is arranged in desulfurization station adjacent area, passes through
In under storage bin, desulfurizing agent is delivered to desulfurization station by conveying pipe in receiver bin, receiver bin small volume, it is arranged in desulfurization platform
On.
Further, the absolute altitude reducing agitator change bit in described step (2) stirs by more changing trains under agitator
Mix the replacing of device, more change trains under described agitator and be arranged in below main operation platform, generally 0.000m plane, under agitator more
Change trains and be in standby position at ordinary times, when needing to change agitator, open to processing position.
Further, more change trains under described agitator and can deposit one or more agitator, more change trains and ferrum under agitator
Water pot tipping car is parallel or is arranged vertically.
Further, the step of described replacing agitator is as follows:
(1) opened to agitator, by standby position, change bit of more changing trains by more changing trains under agitator；
(2) by lifting elevator, lift cart and agitator to be replaced are run downwards, until agitator to be replaced
Till being highly down under agitator change bit, i.e. stirring-head change car table surface height, change ride face and be generally main operation platform
Lower section 5000～7000mm；
(3) by the disassembling bolts between lift cart and agitator to be replaced, then by promoting elevator, will lift little
Car 15 is promoted to certain altitude, and this is highly higher than under agitator roof height of more changing trains；
(4) decline lift cart, connect the bolt between lift cart and new stirrer；
(5), after connecting bolt, by promoting elevator, lift cart and new stirrer are promoted to stirring-head standby
Position；
(6) 6 open to agitator standby position of more changing trains by more changing trains under stirring-head, change complete.
Further, the agitator position to be replaced centrage more changed trains under agitator when agitator is replaced takes off with KR
Sulphuring treatment centrage overlaps.
Further, described desulfurizing agent storage bin volume is 100m3, it is arranged in desulfurization station adjacent area, desulfurizing agent material feeding
Storage capacity is 10～30m3, it being arranged on desulfurization platform, desulfurizing agent storage bin is by conveying pipe and desulfurizing agent receiver bin, material feeding
Desulfurizing agent is put in hot-metal bottle by the desulfurizing agent in storehouse by lifting chute.
Further, the bottom of described desulfurizing agent storage bin and desulfurizing agent receiver bin is provided with feed valve and controls to take off
The discharge of sulfur agent.
Further, the bottom of the feed valve of described desulfurizing agent receiver bin is provided with scale hooper for precise desulfurization
Agent consumption.
Further, described desulfurizing agent receiver bin top platform height is identical with riser guide top platform absolute altitude.
The method have the advantages that
1, the present invention uses agitator to be replaced below main operation platform, thus reduces the mark of KR desulfurization processing means
Height, reaches to solve steelshop KR desulfurization zone crane rail level absolute altitude not enough, it is impossible to meet the problem changing agitator, from forming
Achieve to merit replacing agitator under the conditions of low rail level absolute altitude, by reducing agitator stroke, process with existing KR desulfurization
Device height mounting means compares reduction riser guide overhead height 3900～4200mm, it is achieved thereby that at low rail level absolute altitude bar
The purpose of KR desulfurization processing means is arranged under part.
2, by desulfurizing agent storage bin being arranged in desulfurization station adjacent area, by carrying pipe under storage bin, desulfurizing agent is defeated
Deliver in desulfurization station in receiver bin, receiver bin small volume, solve in desulfurization station can be arranged in because workshop desulfurization is across rail level
Absolute altitude is not enough, it is impossible to the problem successfully arranging desulfurizing agent storage bin in desulfurization station.
3, reduce newly-built steelshop KR desulfurization zone crane rail level absolute altitude, reduce investment outlay, adapt to built steelshop low
Rail level absolute altitude condition, builds KR desulfurization processing means for increasing and creates conditions.
Accompanying drawing explanation
Fig. 1 is KR desulfurization processing means site plan；
Fig. 2 is the sectional view in Fig. 1 along line A-A；
Fig. 3 is the sectional view in Fig. 1 along line B-B；
Fig. 4 is the sectional view in Fig. 1 along line C-C；
Shown in figure: 1, hot-metal bottle tipping vehicle, 2, hot-metal bottle, 3, riser guide, 4, KR desulfurization process position and agitator more
Transposition, 5, desulfurizing agent storage bin, 6, more change trains under agitator, 7, feed valve under desulfurizing agent storage bin, 8, desulfurizing agent conveying pipe,
9, desulfurizing agent transfer pipeline and valve, 10, desulfurizing agent receiver bin, 11, feed valve under desulfurizing agent receiver bin, 12, scale hooper,
13, feed valve under scale hooper, 14, lifting chute, 15, lift cart, 16, agitator to be replaced, 17, new stirrer, 18, promote
Elevator.
Detailed description of the invention
In order to more clearly illustrate the purpose of the present invention, technical scheme and advantage, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention,
It is not intended to limit the present invention.Additionally, technical characteristic involved in each embodiment of the present invention discussed below is only
The conflict of not constituting each other just can be mutually combined.
As shown in Figures 1 to 4, KR desulfurization processing means mainly include charging system, stirring system, hot-metal bottle tipping vehicle 1,
More changing trains 6 etc. under slag ladle and carriage, Cinder Machine, agitator, wherein desulfurizing agent storage bin 5 is arranged near desulfurization station, desulfurizing agent material feeding
Storehouse 10 and feeding device are arranged on desulfurization platform.Stirring system comprise riser guide 3, lift cart 15, promote elevator 18,
The equipment such as agitator, are arranged on desulfurization platform.
The method reducing KR desulfurization processing means setting height(from bottom) under the conditions of low rail level absolute altitude, it comprises the steps:
1, reduce riser guide apparatus elevation of top, step up as it is shown in figure 1, KR desulphurization stirring device is arranged in desulfurization, institute
State KR desulfurization and process position and agitator change bit 4 for same position.Hot-metal bottle tipping vehicle 1 is feeding across carrying hot-metal bottle 2, so
After open and process position 4 to KR desulfurization and carry out desulfurizing iron process, hot-metal bottle tipping vehicle 1 is opened to KR desulfurization and is processed before position 4, agitator 16
Being promoted to agitator standby position with lift cart 15, as in figure 2 it is shown, now, agitator standby position aspect ratio hot-metal bottle tank mouth is high
Spend high 300～1000mm, change agitator standby position and be generally located on below the 0.000m main operation platform of KR desulfurization process position, treat
Distance between seat in the plane and 0.000m main operation platform is 1200～1500mm, comes by reducing replacing stirring-head standby position height
Reducing agitator stroke, thus reduce the height at riser guide top, concrete height drives into and opens not affecting hot-metal ladle and carriage
Go out, and hot-metal bottle tipping is advisable.Change stirring-head standby position height by reducing, compared with prior art reduce agitator
Stroke.It is Flange joint between agitator 16 and lift cart 15, realizes rising inside riser guide 3 by promoting elevator 18
With decline function.By reducing agitator stroke, reduce riser guide 3 overhead height 3900～4200mm, thus realize
KR desulfurizer is arranged under the conditions of low rail level absolute altitude.
2, reduce agitator change bit height, process in KR desulfurization, below the 0.000m main operation platform of position, agitator is set more
Transposition, the distance 5000～7000mm between change bit and 0.000m main operation platform, by reducing the height of agitator change bit
Degree, it is achieved arrange that under the conditions of low rail level absolute altitude KR desulfurizer, the general absolute altitude reducing agitator change bit pass through agitator
Under more change trains and be stirred the replacing of device, more changing trains under agitator is arranged in below main operation platform.Change the step of agitator
As follows:
(1) arrange and under agitator, more change trains 6, be used for carrying agitator 16.More change trains under general agitator and 6 arrange two and stir
Mixing device carrying position, one is new stirrer position, and one is agitator position to be replaced.More change trains under agitator and 6 be arranged in 0.000m
Plane, changes track road vertical with hot-metal bottle tipping vehicle 1 track (or parallel) and arranges under agitator.
(2), when being normally carried out desulfurizing iron, hot-metal bottle tipping vehicle 1 is positioned at KR desulfurization and processes position 4, more changes trains 6 under agitator
Being positioned under the agitator shown in Fig. 3 standby position of more changing trains, and carry a new stirrer 17, agitator position to be replaced is vacant shape
State.
(3), when needing to change agitator 16 to be replaced, hot-metal bottle tipping vehicle 1 is opened to the hot-metal bottle tipping vehicle shown in Fig. 2
Standby position.Then 6 opened to agitator, by standby position, change bit of more changing trains by more changing trains under agitator, now change under agitator
The agitator position to be replaced centrage of car 6 overlaps, as shown in Figure 3 with KR desulfurization processing center line.
(4) by promoting elevator 18, lift cart 15 and agitator 16 to be replaced are run downwards, until to be replaced
Till agitator 16 is highly down under agitator change bit, i.e. stirring-head change car table surface height, change ride face the most main
Below operating platform 5000～7000mm, as shown in Figure 3.At present, conventional whisk is more changed trains and is arranged in more than main operation platform,
Table surface height is positioned at current conventional whisk change bit and is positioned at the above 750mm of main operation platform.
(5) by the disassembling bolts between lift cart 15 and agitator 16 to be replaced, then by promoting elevator 18, will
Lift cart 15 is promoted to certain altitude, and this is highly higher than under agitator roof height of more changing trains.
(6) then 6 move left and right more changing trains under agitator, with meet new stirrer 17 centrage with in lift cart 15
Heart line centering is advisable.
(7) then decline lift cart 15, connect the bolt between lift cart 15 and new stirrer 17.
(8), after connecting bolt, by promoting elevator 18, lift cart 15 and new stirrer 17 are promoted to stirring-head
Standby position.
(9) finally 6 open to agitator standby position of more changing trains by more changing trains under stirring-head, as it is shown on figure 3, by desulfurization across
Agitator to be replaced is sling by overhead traveling crane, is transported to maintenance area and keeps in repair, and is placed by another new stirrer 17 of overhead traveling crane handling
More change trains under agitator upper standby.
As the another embodiment in the present embodiment, more changing trains under agitator 6 is also designed to only carry one
Agitator 16.When changing agitator, needing first 6 to open more changing trains under agitator to agitator change bit 4, replacing options is with (2)
～(5).Then 6 standby position of more changing trains is opened to agitator by more changing trains under agitator, as it is shown on figure 3, by desulfurization across overhead traveling crane
Agitator to be replaced is sling, is transported to maintenance area and keeps in repair, and be positioned over stirring by one new stirrer 17 of overhead traveling crane handling
Upper 6 are more changed trains under device.6 open more changing trains under agitator to agitator change bit 4 again, carry out the installation of new stirrer 17, method
With (6)～(9).It is longer that the method changes the agitator time, it is adaptable to steel mill site location is limited, it is impossible to arranges under agitator
More change trains and carry the device of two agitators.
3, reduce feed bin elevation of top in KR desulfurization station, desulfurizing agent storage bin 5 and conveying pipe 8 are arranged in desulfurization station adjacent
Region, is transported to desulfurizing agent in the receiver bin 10 in desulfurization station by storage bin 5, as shown in Figure 4 by conveying pipe 8；
Desulfurizing agent storage bin 5 volume is 100m3, concrete volume is advisable to meet the desulfurization station doctor solution consumption of a day, cloth
Put at desulfurization station adjacent area.Desulfurizing agent storage bin is disposed with feed valve 7, feed valve 7 arranged beneath conveying pipe 8 for 5 times.
Desulfurizing agent receiver bin 10 volume is 10～30m3, it is arranged on desulfurization platform, receiver bin 10 top platform height
Identical with riser guide 3 top platform absolute altitude, receiver bin arranges feed valve door 11 for 10 times, and feed valve arranges scale hooper 11 times
12, for precise doctor solution consumption.Scale hooper arranges feed valve 13 under scale hooper for 12 times, for accurate discharge, weighs
The lower feed valve of bucket arranges lifting chute groove 14 for 13 times, and desulfurizing agent is put in hot-metal bottle 2 by desulfurizing agent by lifting chute 14.
By above every design, can the height of bigger reduction KR desulfurization processing means, it is ensured that KR desulfurization process complete
Whole property and convenience.
The present invention be directed to the limitation of existing KR desulfurization processing means Technology, in newly-built steel mill, supporting KR takes off
When in sulphuring treatment device or existing steel mill, KR desulfurization processing means is built in increasing, under the conditions of low rail level absolute altitude, the technique of KR desulfurization sets
Meter.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. the method reducing KR desulfurization processing means setting height(from bottom), it is characterised in that: comprise the following steps:
(1) reduce riser guide apparatus elevation of top, replacing is set below the 0.000m main operation platform of KR desulfurization process position and stirs
Mix device standby position, the distance 1200～1500mm between standby position and 0.000m main operation platform, change stirring-head by reducing
Standby position height reduces agitator stroke, reduces the height at riser guide top；
(2) reduce the absolute altitude of agitator change bit, process in KR desulfurization, below the 0.000m main operation platform of position, agitator is set more
Transposition, the distance 5000～7000mm between change bit and 0.000m main operation platform, by reducing the height of agitator change bit
Degree, it is achieved arrange KR desulfurizer under the conditions of low rail level absolute altitude；
(3) reduce feed bin elevation of top in KR desulfurization station, desulfurizing agent storage bin is arranged in desulfurization station adjacent area, passes through storing
In under storehouse, desulfurizing agent is delivered to desulfurization station by conveying pipe in receiver bin, receiver bin small volume, it is arranged on desulfurization platform.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 1, it is characterised in that: described step
(2) absolute altitude reducing agitator change bit in is stirred the replacing of device, by more changing trains under agitator under described agitator more
Change trains and be in standby position at ordinary times, when needing to change agitator, open to processing position.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 2, it is characterised in that: described stirring
More change trains under device and can deposit one or more agitator, more change trains parallel with hot-metal bottle tipping vehicle under agitator or be arranged vertically.
4., according to the method for the reduction KR desulfurization processing means setting height(from bottom) described in any one of claim 2 to 3, its feature exists
In, the step of described replacing agitator is as follows:
(1) opened to agitator, by standby position, change bit of more changing trains by more changing trains under agitator；
(2) by lifting elevator, lift cart and agitator to be replaced are run downwards, until agitator height to be replaced
Till being down under agitator change bit, i.e. stirring-head change car table surface height；
(3) by the disassembling bolts between lift cart and agitator to be replaced, then by promoting elevator, by lift cart 15
Being promoted to certain altitude, this is highly higher than under agitator roof height of more changing trains；
(4) decline lift cart, connect the bolt between lift cart and new stirrer；
(5), after connecting bolt, by promoting elevator, lift cart and new stirrer are promoted to stirring-head standby position；
(6) 6 open to agitator standby position of more changing trains by more changing trains under stirring-head, change complete.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 4, it is characterised in that: described step
(2) the agitator position to be replaced centrage more changed trains under agitator when agitator is replaced in and KR desulfurization processing center line
Overlap.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 1, it is characterised in that: step (3)
Described in desulfurizing agent storage bin volume be 100m3, it being arranged in desulfurization station adjacent area, desulfurizing agent receiver bin volume is 10～30m3,
Being arranged on desulfurization platform, desulfurizing agent storage bin is by conveying pipe and desulfurizing agent receiver bin, and the desulfurizing agent in receiver bin passes through
Desulfurizing agent is put in hot-metal bottle by lifting chute.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 6, it is characterised in that: described desulfurization
The bottom of agent storage bin and desulfurizing agent receiver bin is provided with feed valve to control the discharge of desulfurizing agent.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 7, it is characterised in that: described desulfurization
The bottom of the feed valve of agent receiver bin is provided with scale hooper for precise doctor solution consumption.
The method of reduction KR desulfurization processing means setting height(from bottom) the most according to claim 1, it is characterised in that: described desulfurization
Agent receiver bin top platform height is identical with riser guide top platform absolute altitude.
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| CN201610475201.6A CN106086311B (en) | 2016-06-24 | 2016-06-24 | A kind of method for reducing KR desulfurization process device mounting heights |
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| CN201610475201.6A CN106086311B (en) | 2016-06-24 | 2016-06-24 | A kind of method for reducing KR desulfurization process device mounting heights |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593170A (en) * | 2020-04-22 | 2020-08-28 | 鞍钢集团工程技术有限公司 | Optimization improvement method for reducing installation height of KR desulfurization system |
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| US4718645A (en) * | 1985-11-21 | 1988-01-12 | Voest-Alpine Aktiengesellschaft | Ladle stand arrangement for treating molten metal |
| CN102061360A (en) * | 2010-12-17 | 2011-05-18 | 中冶南方工程技术有限公司 | Method for lowering installation height of Ruhstahl Hausen (RH) vacuum processing device under low rail surface elevation condition |
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- 2016-06-24 CN CN201610475201.6A patent/CN106086311B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718645A (en) * | 1985-11-21 | 1988-01-12 | Voest-Alpine Aktiengesellschaft | Ladle stand arrangement for treating molten metal |
| CN102061360A (en) * | 2010-12-17 | 2011-05-18 | 中冶南方工程技术有限公司 | Method for lowering installation height of Ruhstahl Hausen (RH) vacuum processing device under low rail surface elevation condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111593170A (en) * | 2020-04-22 | 2020-08-28 | 鞍钢集团工程技术有限公司 | Optimization improvement method for reducing installation height of KR desulfurization system |
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