CN104894318B - Blast furnace screw material distribution correcting method - Google Patents
Blast furnace screw material distribution correcting method Download PDFInfo
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- CN104894318B CN104894318B CN201410078638.7A CN201410078638A CN104894318B CN 104894318 B CN104894318 B CN 104894318B CN 201410078638 A CN201410078638 A CN 201410078638A CN 104894318 B CN104894318 B CN 104894318B
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Abstract
The present invention provides a blast furnace screw material distribution correcting method. According to the method, an inverse carrying material distribution performing mark button is arranged in a screw material distribution list image; a material distribution correcting process is additionally set in a blast furnace top material distribution process; a screw material distribution performing ring position Xj corresponding to the final material distribution ring position X1 is set in advance; during an ore material distribution process, the material distribution sluice tilting angle of the X1 is performed according to the Xj tilting angle; during the material distribution process, when the weight displayed by a weighing cabinet produces the large change, the material distribution collecting process is manually started, and the material distribution sluice automatically tilts upward according to the retrieved tilting angle of the screw material distribution performing ring position Xj; and after the batch material distribution is completed, the tilting angle of the screw material distribution recovers to perform the originally-set furnace top material distribution process. With the method of the present invention, the condition that the material at the final ring position is centralized and distributed at the center position in the furnace can be avoided, such that the center gas flow in the blast furnace is active, the distribution of the gas flow in the furnace is rational, the furnace condition is improved, and the smooth blast furnace smelting production can be ensured.
Description
Technical field
The invention belongs to blast furnace iron-making process field, more particularly, to a kind of for blast furnace bell-less formula furnace roof screw distribution
Modification method.
Background technology
The commonly used screw distribution of distributing mode of blast furnace bell-less formula furnace roof, its cloth ring position arranges 11 altogether from 1～11
Individual ring position, according to burden distribution system, the turning angle of distributor chute degressively completes in stove successively with the weight that weighing pot gathers
Cloth.However, when the despite pressure fluctuations of cabinet collection of weighing or tank body are flexible coupling in itself and have contact, the cabinet that will affect to weigh shows
When the weight shown, especially weight become big, the fabric weight of each ring position will be directly affected, cause every batch of remaining material will
Cloth, in last ring, makes the ore weight in centre in stove increase, the development of central gas stream, time one long pole in suppression blast furnace
Easily affect the direct motion of blast furnace, cause the working of a furnace to deteriorate.
Content of the invention
The present invention is intended to provide one kind can be when large variation in cabinet weight of weighing, last Huan Weilunei center of cloth
Position Ore heaps, thus avoiding the modification method of the blast furnace screw distribution of central gas stream retardance.
For this reason, the solution that the present invention is taken is：
A kind of modification method of blast furnace screw distribution is it is characterised in that concrete modification method is：
In screw distribution material list picture, setting holds cloth execution designation button, sets up in blast furnace roof material distributing program
Cloth revision program, presets the screw distribution execution corresponding to last cloth ring position X1 for different ore charge kinds
Ring position Xj, and manually adjusted according to ore charge kind and cabinet weight fluctuation situation of weighing, it is allowed to during Ore cloth,
The distributor chute turning angle of a cloth ring position X1 executes the turning angle execution of ring position Xj according to screw distribution afterwards.
Blast furnace during each Ore cloth, work as batch of material kind and hold cloth and execute mark by cloth revision program automatic detection
The signal of will shows, and automatically delivers burden distribution system；The weight that cabinet of weighing during cloth shows makes a reservation for weight with when batch of material kind
During amount appearance ± 2t change, manually boot cloth revision program, when cloth is carried out to last cloth ring position X1, cloth slips
Groove executes the automatic updip of turning angle of ring position Xj according to the screw distribution retrieving；Extremely after batch cloth terminates, cloth correction
Automatic Program exits, and makes each turning angle set by ring position of screw distribution recover to execute the roof material distributing journey of former setting
Sequence.
Described screw distribution execution ring position Xj high 2 ring positions than last cloth ring position X1.
Beneficial effects of the present invention are：
Because the present invention can be when the weight change that cabinet of weighing shows be larger, by last ring position of blast furnace roof material distributing
Material updip, it is to avoid the material of last ring position is distributed in the centre in stove, thus reducing the weight in centre for the Ore,
So that central gas stream is enlivened, gas stream in the stove is reasonably distributed, improve the working of a furnace it is ensured that the direct motion that produces of blast furnace process.
Specific embodiment
The modification method of blast furnace screw distribution of the present invention, is that setting holds cloth and executes mark in screw distribution material list picture
Will button, sets up cloth revision program simultaneously in blast furnace roof material distributing program, presets for different ore charge kinds
Screw distribution execution ring position Xj corresponding to a cloth ring position X1 afterwards, general Xj high 2 ring positions than X1.And according to ore charge kind
Cabinet weight fluctuation situation is manually adjusted with weighing, and is allowed to during Ore cloth, the cloth of last cloth ring position X1
Material chute turning angle executes the turning angle execution of ring position Xj according to screw distribution.
Blast furnace during each Ore cloth, work as batch of material kind and hold cloth and execute mark by cloth revision program automatic detection
The signal of will shows, and automatically delivers burden distribution system；The weight that cabinet of weighing during cloth shows makes a reservation for weight with when batch of material kind
During amount appearance ± 2t change, manually boot cloth revision program, when cloth is carried out to last cloth ring position X1, cloth slips
Groove executes the automatic updip of turning angle of ring position Xj according to the screw distribution retrieving；Extremely after batch cloth terminates, cloth correction
Automatic Program exits, and makes each turning angle set by ring position of screw distribution recover to execute the roof material distributing journey of former setting
Sequence.
Embodiment 1：
Ore charge kind O1, the screw distribution material list ring position of the former setting of roof material distributing program is 9,8,7,6,5,4, and that is, its X1 is
4th ring position.The Xj that cloth revision program sets high 2 ring positions than X1, that is, be set as the 6th ring position.
Under normal circumstances, during ore charge kind O1 cloth, according to the screw distribution material list ring position of the former setting of roof material distributing program
9th, 8,7,6,5,4 execution.
When large change in the weight that cabinet of weighing during cloth shows, manually boot cloth revision program, press
The cloth that holds in screw distribution material list picture executes designation button, when cloth proceeds to last cloth ring position X1（4th
Ring position）When, distributor chute is according to the screw distribution execution ring position Xj retrieving（6th ring position）The automatic updip of turning angle；
To after batch cloth terminates, cloth revision program automatically exits from, and each turning angle set by ring position of screw distribution is still held
The roof material distributing program of the former setting of row.
Embodiment 2：
Ore charge kind O2, the screw distribution material list ring position of the former setting of roof material distributing program is 9,8,7,6,5, and that is, its X1 is the
5 ring positions.The Xj that cloth revision program sets is as the 7th ring position.
Under normal circumstances, during ore charge kind O2 cloth, according to the screw distribution material list ring position of the former setting of roof material distributing program
9th, 8,7,6,5, execution.
When large change in the weight that cabinet of weighing during cloth shows, manually boot cloth revision program, press
The cloth that holds in screw distribution material list picture executes designation button, when cloth proceeds to last cloth ring position X1（5th
Ring position）When, distributor chute is according to the screw distribution execution ring position Xj retrieving（7th ring position）The automatic updip of turning angle；
To after batch cloth terminates, cloth revision program automatically exits from, and each turning angle set by ring position of screw distribution is still held
The roof material distributing program of the former setting of row.
Claims (1)
1. a kind of modification method of blast furnace screw distribution is it is characterised in that concrete modification method is：
In screw distribution material list picture, setting holds cloth and executes mark, sets up cloth correction in blast furnace roof material distributing program
Program, presets the screw distribution execution ring position Xj corresponding to last cloth ring position X1 for different ore charge kinds,
Screw distribution execution ring position Xj high 2 ring positions than last cloth ring position X1；And according to ore charge kind and cabinet weight ripple of weighing
Emotionally condition is manually adjusted, and is allowed to during Ore cloth, the distributor chute turning angle of last cloth ring position X1
Execute the turning angle execution of ring position Xj according to screw distribution；
Blast furnace during each Ore cloth, work as batch of material kind and hold cloth execution mark by cloth revision program automatic detection
Signal shows, and automatically delivers burden distribution system；The weight that cabinet of weighing during cloth shows goes out with when batch of material kind predetermined weight
During existing ± 2t change, manually boot cloth revision program, when cloth is carried out to last cloth ring position X1, distributor chute is pressed
Execute the automatic updip of turning angle of ring position Xj according to the screw distribution retrieving；Extremely after batch cloth terminates, cloth revision program
Automatically exit from, make each turning angle set by ring position of screw distribution recover to execute the roof material distributing program of former setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078638.7A CN104894318B (en) | 2014-03-05 | 2014-03-05 | Blast furnace screw material distribution correcting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078638.7A CN104894318B (en) | 2014-03-05 | 2014-03-05 | Blast furnace screw material distribution correcting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104894318A CN104894318A (en) | 2015-09-09 |
| CN104894318B true CN104894318B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410078638.7A Active CN104894318B (en) | 2014-03-05 | 2014-03-05 | Blast furnace screw material distribution correcting method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222342A (en) * | 2016-08-23 | 2016-12-14 | 北京首钢自动化信息技术有限公司 | A kind of control method of blast furnace roof material distributing precision |
| CN106868240B (en) * | 2017-02-23 | 2019-04-05 | 山东钢铁股份有限公司 | Blast furnace material distribution angle verifying unit and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50133905A (en) * | 1974-04-15 | 1975-10-23 | ||
| US4820313A (en) * | 1986-09-17 | 1989-04-11 | Kelmar Energy Corporation | Coal processing method and apparatus |
| SU1463765A1 (en) * | 1987-07-03 | 1989-03-07 | Донецкий научно-исследовательский институт черной металлургии | Charge distributor of loading arrangement of blast furnace |
| CN102191345A (en) * | 2011-04-28 | 2011-09-21 | 刘轩 | All-around blast furnace distributing device with electro-hydraulic hybrid transmission |
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