CN106086311B - A kind of method for reducing KR desulfurization process device mounting heights - Google Patents
A kind of method for reducing KR desulfurization process device mounting heights Download PDFInfo
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- CN106086311B CN106086311B CN201610475201.6A CN201610475201A CN106086311B CN 106086311 B CN106086311 B CN 106086311B CN 201610475201 A CN201610475201 A CN 201610475201A CN 106086311 B CN106086311 B CN 106086311B
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- blender
- desulfurization
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- desulfurizing agent
- desulfurization process
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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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- Engineering & Computer Science (AREA)
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- 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 for reducing KR desulfurization process device mounting heights, including following installation steps：Riser guide apparatus elevation of top is reduced, setting replacement blender standby position, reduces the height at the top of riser guide below KR desulfurization process position main operation platform；The absolute altitude of blender change bit is reduced, blender change bit is set below KR desulfurization process position main operation platform, by the height for reducing blender change bit；Feed bin elevation of top in KR desulfurization station is reduced, desulfurizing agent storage bin is arranged in desulfurization station adjacent area, desulfurizing agent is delivered in desulfurization station in receiver bin by delivery pipe under storage bin, receiver bin is arranged on desulfurization platform.The purpose that KR desulfurization process devices are arranged under the conditions of low rail level absolute altitude is realized by the installation method of the present invention.
Description
Technical field
The invention belongs to hot metal in steelmaking to pre-process KR sulfur removal technology technical fields, and in particular to one kind is in low rail level absolute altitude item
The method that KR desulfurization process device mounting heights are reduced under part, to adapt to the installation of the equipment under low rail level absolute altitude.
Background technology
In order to meet market to steel grade quality increasingly higher demands, the impurity all in making great efforts to reduce steel both at home and abroad, especially
It is to reduce sulfur content to improve steel product quality.Therefore it provides low-sulfur molten steel is the necessary condition of the qualified strand of sequence casting production.
Domestic each existing desulfurizing iron of steel mill is more to use KR desulfurization process devices, and there are single-station, double-station etc. are a variety of
The technological design scheme of form.These technological design schemes generally carry out the blender of KR desulfurization more on main operation platform
It changes.When replacing blender, need blender being promoted to main operation platform more than certain altitude, by the blender on platform more
It changes trains out to blender, replacement blender could be carried out.So required rail level absolute altitude in span where KR desulfurizers
It is general higher.For mating KR desulfurization process device in newly-built steel mill, perhaps there is no problem, but for existing steel-making vehicle for this
Interior newly-increased KR desulfurization process device, then there may be steelshop KR desulfurization zones crane rail levels cannot meet on blender more
Required hoisting depth requirement is changed, at this moment just seeks a kind of new technological design scheme.
Invention content
The purpose of the present invention is to provide one kind to reduce KR desulfurization process device mounting heights under the conditions of low rail level absolute altitude
Method, this method can be in the insufficient installation KR desulfurization process dress of steelshop KR desulfurization zones crane rail level absolute altitude
It puts.
Scheme is used by the present invention solves technical problem：
A kind of method for reducing KR desulfurization process device mounting heights, including following installation steps：
(1) riser guide apparatus elevation of top is reduced, is set more below the 0.000m main operation platforms of KR desulfurization process position
Blender standby position is changed, 1200~1500mm of the distance between standby position and 0.000m main operation platforms is stirred by reducing to replace
A standby position height is mixed to reduce blender stroke, so as to reduce the height at the top of riser guide；
(2) absolute altitude of blender change bit is reduced, stirring is set below the 0.000m main operation platforms of KR desulfurization process position
Device change bit, 5000~7000mm of the distance between change bit and 0.000m main operation platforms, by reducing blender change bit
Height, realize under the conditions of low rail level absolute altitude arrangement KR desulfurizers；
(3) feed bin elevation of top in KR desulfurization station is reduced, desulfurizing agent storage bin is arranged in desulfurization station adjacent area, is passed through
Desulfurizing agent is delivered in desulfurization station in receiver bin by delivery pipe under storage bin, and receiver bin small volume is arranged in desulfurization platform
On.
Further, the absolute altitude for blender change bit being reduced in the step (2) is stirred by more changing trains under blender
The replacement of device is mixed, more changes trains and is arranged in below main operation platform under the blender, generally 0.000m planes, under blender more
It changes trains usually in standby position, when needing replacing blender, opens to processing position.
Further, one or more blenders can be stored by more changing trains under the blender, more be changed trains under blender and iron
Water pot tipping car is parallel or is arranged vertically.
Further, the step of replacement blender is as follows：
(1) will more change trains change bit of more changing trains under being opened by standby position to blender under blender；
(2) lift cart and blender to be replaced are run downwards by promoting elevator, until blender to be replaced
Blender change bit is highly down to, i.e., until replacing vehicle table surface height under stirring-head, replaces ride face and is generally main operation platform
5000~7000mm of lower section；
(3) it by the disassembling bolts between lift cart and blender to be replaced, then by promoting elevator, will lift small
Vehicle 15 is promoted to certain altitude, this is highly higher than under blender 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, it is standby that lift cart and new stirrer are promoted to stirring-head
Position；
(6) will more change trains under stirring-head 6 open to blender under more change trains standby position, replacement finishes.
Further, blender position to be replaced center line and the KR more to change trains under blender when blender is replaced takes off
Sulphuring treatment center line overlaps.
Further, the desulfurizing agent storing storage capacity is 100m3, it is arranged in desulfurization station adjacent area, desulfurizing agent material feeding
Storage capacity is 10~30m3, it is arranged on desulfurization platform, desulfurizing agent is delivered to desulfurization by desulfurizing agent storage bin by delivery pipe
In standing in receiver bin, the desulfurizing agent in receiver bin is put into desulfurizing agent in hot-metal bottle by lifting chute.
Further, it is de- to control to be both provided with feed valve for the bottom of the desulfurizing agent storage bin and desulfurizing agent receiver bin
The discharge of sulphur agent.
Further, the lower part of the feed valve of the desulfurizing agent receiver bin is equipped with scale hooper for precise desulfurization
Agent dosage.
Further, the desulfurizing agent receiver bin top platform height is identical with riser guide top platform absolute altitude.
The invention has the advantages that：
1st, the present invention is replaced using blender below main operation platform, so as to reduce the mark of KR desulfurization process devices
Height, reaches that solve steelshop KR desulfurization zones crane rail level absolute altitude insufficient, it is impossible to meet the problem of replacing blender, from into
It realizes to work(and replaces blender under the conditions of low rail level absolute altitude, by reducing blender stroke, with existing KR desulfurization process
Device height mounting means is compared to riser guide 3900~4200mm of overhead height is reduced, it is achieved thereby that in low rail level absolute altitude item
The purpose of KR desulfurization process devices is arranged under part.
2nd, it is by delivery pipe under storage bin that desulfurizing agent is defeated by the way that desulfurizing agent storage bin is arranged in desulfurization station adjacent area
It send to receiver bin in desulfurization station, receiver bin small volume, can be arranged in desulfurization station and solve because workshop desulfurization is across rail level
Absolute altitude is insufficient, it is impossible to the problem of desulfurizing agent storage bin is successfully arranged in desulfurization station.
3rd, newly-built steelshop KR desulfurization zones crane rail level absolute altitude is reduced, reduces investment outlay, it is low to adapt to built steelshop
Rail level absolute altitude condition builds KR desulfurization process devices for increasing and creates conditions.
Description of the drawings
Fig. 1 is KR desulfurization process unit layout figures；
Fig. 2 is along the sectional view of line A-A in Fig. 1；
Fig. 3 is along the sectional view of line B-B in Fig. 1；
Fig. 4 is along the sectional view of line C-C in Fig. 1；
Shown in figure：1st, hot-metal bottle tipping vehicle, 2, hot-metal bottle, 3, riser guide, 4, KR desulfurization process position and blender are more
Transposition, 5, desulfurizing agent storage bin, 6, more change trains under blender, 7, be fed valve under desulfurizing agent storage bin, 8, desulfurizing agent delivery pipe,
9th, desulfurizing agent transfer pipeline and valve, 10, desulfurizing agent receiver bin, 11, be fed valve under desulfurizing agent receiver bin, 12, scale hooper,
13rd, it is fed valve under scale hooper, 14, lifting chute, 15, lift cart, 16, blender to be replaced, 17, new stirrer, 18, promoted
Elevator.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to more clearly illustrate the objectives, technical solutions, and advantages of the present invention
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.In addition, technical characteristic involved in each embodiment of the present invention discussed below is only
Not constituting a conflict with each other can be combined with each other.
As shown in Figures 1 to 4, KR desulfurization process device mainly include charging system, stirring system, hot-metal bottle tipping vehicle 1,
More change trains 6 etc. under slag ladle and carriage, mucking machine, blender, 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 include riser guide 3, lift cart 15, promoted elevator 18,
The equipment such as blender are arranged on desulfurization platform.
The method that KR desulfurization process device mounting heights are reduced under the conditions of low rail level absolute altitude, it includes the following steps：
1st, riser guide apparatus elevation of top is reduced, is stepped up as shown in Figure 1, KR desulphurization stirring devices are arranged in desulfurization, institute
It is same position to state KR desulfurization process position and blender change bit 4.Hot-metal bottle tipping vehicle 1 is feeding across carrying hot-metal bottle 2, so
After open to KR desulfurization process position 4 and carry out desulfurizing iron processing, hot-metal bottle tipping vehicle 1 opened to KR desulfurization process position 4, blender 16
Blender standby position is promoted to lift cart 15, as shown in Fig. 2, at this point, blender standby position height is higher than hot-metal bottle tank mouth
High 300~1000mm is spent, blender standby position is replaced and is generally located below KR desulfurization process position 0.000m main operations platform, treat
The distance between seat in the plane and 0.000m main operation platforms be 1200~1500mm, by reduction replace stirring-head standby position height come
Blender stroke is reduced, so as to reduce the height at the top of riser guide, specific height drives into and opens not influence hot-metal ladle and carriage
Go out and hot-metal bottle tipping is advisable.Stirring-head standby position height is replaced by reduction, reduces blender compared with prior art
Stroke.It is flanged joint between blender 16 and lift cart 15, rising is realized inside riser guide 3 by promoting elevator 18
With decline function.By reducing blender stroke, reaching reduces by 3 3900~4200mm of overhead height of riser guide, so as to fulfill
KR desulfurizers are arranged under the conditions of low rail level absolute altitude.
2nd, blender change bit height is reduced, blender is set more below the 0.000m main operation platforms of KR desulfurization process position
Transposition, 5000~7000mm of the distance between change bit and 0.000m main operation platforms, by the height for reducing blender change bit
Degree, realizes the arrangement KR desulfurizers under the conditions of low rail level absolute altitude, and the general absolute altitude for reducing blender change bit passes through blender
Under more change trains and be stirred the replacement of device, more change trains and be arranged in below main operation platform under blender.The step of replacing blender
It is as follows：
(1) it sets under blender and more changes trains 6, for carrying blender 16.6 setting two of more changing trains under general blender is stirred
Device carrying position is mixed, one is new stirrer position, and one is blender position to be replaced.It more changes trains under blender and 6 is arranged in 0.000m
Plane is replaced track road (or parallel) vertical with 1 track of hot-metal bottle tipping vehicle under blender and is arranged.
(2) when being normally carried out desulfurizing iron, hot-metal bottle tipping vehicle 1 is located at KR desulfurization process position 4, more changes trains 6 under blender
It more changes trains under blender shown in Fig. 3 standby position, and carries a new stirrer 17, blender position to be replaced is vacant shape
State.
(3) when needing replacing blender 16 to be replaced, hot-metal bottle tipping vehicle 1 is opened to hot-metal bottle tipping vehicle shown in Fig. 2
Standby position.Then will more change trains under blender 6 opened by standby position to blender under more change trains change bit, replaced under blender at this time
The blender position to be replaced center line of vehicle 6 is overlapped with KR desulfurization process center lines, as shown in Figure 3.
(4) by promoting elevator 18, lift cart 15 and blender 16 to be replaced are run downwards, until to be replaced
16 height of blender is down to blender change bit, i.e., until replacing vehicle table surface height under stirring-head, replace ride face it is general based on
5000~7000mm below operating platform, as shown in Figure 3.At present, conventional whisk, which is more changed trains, is arranged in more than main operation platform,
Table surface height is located at current conventional whisk change bit and is located at main operation platform more than 750mm.
It (5), will then by promoting elevator 18 by the disassembling bolts between lift cart 15 and blender 16 to be replaced
Lift cart 15 is promoted to certain altitude, this is highly higher than under blender roof height of more changing trains.
(6) and then will more change trains and 6 move left and right under blender, with meet 17 center line of new stirrer in lift cart 15
It is advisable in heart line pair.
(7) and 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 will more change trains under stirring-head 6 open to blender under more change trains standby position, as shown in figure 3, by desulfurization across
Overhead traveling crane slings blender to be replaced, is transported to maintenance area and repairs, and passes through overhead traveling crane handling another new stirrer 17 and place
It more changes trains under blender upper spare.
More change trains as the another embodiment in the present embodiment, under blender 6 be also designed to only carry one
Blender 16.When replacing blender, need first will more to change trains under blender and 6 open to blender change bit 4, replacing options are the same as (2)
~(5).Then will more change trains under blender 6 open to blender under more change trains standby position, as shown in figure 3, by desulfurization across overhead traveling crane
Blender to be replaced is sling, maintenance area is transported to and repairs, and passes through one new stirrer 17 of overhead traveling crane handling and is positioned over stirring
More change trains upper 6 under device.It will more change trains and 6 open to blender change bit 4 under blender again, carry out the installation of new stirrer 17, method
With (6)~(9).This method replacement blender time is longer, is limited, can not arrange under blender suitable for steel mill site location
It more changes trains and carries the device of two blenders.
3rd, feed bin elevation of top in KR desulfurization station is reduced, it is adjacent that desulfurizing agent storage bin 5 and delivery pipe 8 are arranged in desulfurization station
Desulfurizing agent is transported to by storage bin 5 in the receiver bin 10 in desulfurization station, as shown in Figure 4 by region by delivery pipe 8；
5 volume of desulfurizing agent storage bin is 100m3, specific volume is advisable with meeting the desulfurization station doctor solution consumption of one day, cloth
It puts in desulfurization station adjacent area.Feed valve 7 is disposed under desulfurizing agent storage bin 5, is fed 7 arranged beneath delivery pipe 8 of valve.
10 volume of desulfurizing agent receiver bin is 10~30m3, it is arranged on desulfurization platform, 10 top platform height of receiver bin
It is identical with 3 top platform absolute altitude of riser guide, 10 times setting feed valve doors 11 of receiver bin, 11 times setting scale hoopers of feed valve
12, for precise doctor solution consumption.Valve 13 is fed under 12 times setting scale hoopers of scale hooper, for accurate discharge, is weighed
Bucket 13 times setting lifting chute slots 14 of lower feed valve, desulfurizing agent are put into desulfurizing agent in hot-metal bottle 2 by lifting chute 14.
Designed by above every, can the larger height for reducing KR desulfurization process devices, ensure the complete of KR desulfurization process
Whole property and convenience.
The present invention be directed to the limitations of existing KR desulfurization process device technique technology, and mating KR takes off in newly-built steel mill
When KR desulfurization process devices are built in increasing in sulphuring treatment device or existing steel mill, the technique of KR desulfurization is set under the conditions of low rail level absolute altitude
Meter.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
- A kind of 1. method for reducing KR desulfurization process device mounting heights, it is characterised in that：Include the following steps：(1) riser guide apparatus elevation of top is reduced, sets to replace below the 0.000m main operation platforms of KR desulfurization process position and stir Device standby position is mixed, 1200~1500mm of the distance between standby position and 0.000m main operation platforms replaces stirring-head by reduction Standby position height reduces blender stroke, reduces the height at the top of riser guide；(2) absolute altitude of blender change bit is reduced, blender is set more below the 0.000m main operation platforms of KR desulfurization process position Transposition, 5000~7000mm of the distance between change bit and 0.000m main operation platforms, by the height for reducing blender change bit Degree realizes the arrangement KR desulfurizers under the conditions of low rail level absolute altitude；(3) feed bin elevation of top in KR desulfurization station is reduced, desulfurizing agent storage bin is arranged in desulfurization station adjacent area, passes through storing Desulfurizing agent is delivered in desulfurization station in receiver bin by delivery pipe under storehouse, and receiver bin small volume is arranged on desulfurization platform.
- 2. the method according to claim 1 for reducing KR desulfurization process device mounting heights, it is characterised in that：The step (2) absolute altitude that blender change bit is reduced in is stirred the replacement of device by more changing trains under blender, under the blender more It changes trains usually in standby position, when needing replacing blender, opens to processing position.
- 3. the method according to claim 2 for reducing KR desulfurization process device mounting heights, it is characterised in that：The stirring One or more blenders can be stored by more changing trains under device, more changed trains parallel with hot-metal bottle tipping vehicle under blender or be arranged vertically.
- 4. reducing the method for KR desulfurization process device mounting heights according to claim 2 to 3 any one of them, feature exists In described the step of replacing blender is as follows：(1) will more change trains change bit of more changing trains under being opened by standby position to blender under blender；(2) lift cart and blender to be replaced are run downwards by promoting elevator, until blender height to be replaced Blender change bit is down to, i.e., until replacing vehicle table surface height under stirring-head；(3) by the disassembling bolts between lift cart and blender to be replaced, then by promoting elevator, by lift cart (15) certain altitude is promoted to, this is highly higher than under blender 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) will more change trains standby position of more changing trains under (6) are opened to blender under stirring-head, and replacement finishes.
- 5. the method according to claim 4 for reducing KR desulfurization process device mounting heights, it is characterised in that：Claim The blender position to be replaced center line more changed trains under blender in step described in 4 (2) when blender is replaced takes off with KR Sulphuring treatment center line overlaps.
- 6. the method according to claim 1 for reducing KR desulfurization process device mounting heights, it is characterised in that：Step (3) Described in desulfurizing agent storing storage capacity be 100m3, desulfurization station adjacent area is arranged in, desulfurizing agent material feeding storage capacity is 10~30m3, It is arranged on desulfurization platform, desulfurizing agent is delivered in desulfurization station in receiver bin by desulfurizing agent storage bin by delivery pipe, material feeding Desulfurizing agent in storehouse is put into desulfurizing agent in hot-metal bottle by lifting chute.
- 7. the method according to claim 6 for reducing KR desulfurization process device mounting heights, it is characterised in that：The desulfurization The bottom of agent storage bin and desulfurizing agent receiver bin is both provided with feed valve to control the discharge of desulfurizing agent.
- 8. the method according to claim 7 for reducing KR desulfurization process device mounting heights, it is characterised in that：The desulfurization The lower part of the feed valve of agent receiver bin is equipped with scale hooper for precise doctor solution consumption.
- 9. the method according to claim 1 for reducing KR desulfurization process device mounting heights, it is characterised in that：The desulfurization Agent receiver bin top platform height is identical with riser guide top platform absolute altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN106086311B true CN106086311B (en) | 2018-06-08 |
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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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| 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 |
-
2016
- 2016-06-24 CN CN201610475201.6A patent/CN106086311B/en active Active
Patent Citations (2)
| 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 |
Non-Patent Citations (1)
| Title |
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| "低轨面标高条件下RH工艺设计方案";许畅 等;《炼钢》;20120229;第28卷(第1期);第66-69页 * |
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