CN104894318A - Blast furnace screw material distribution correcting method - Google Patents
Blast furnace screw material distribution correcting method Download PDFInfo
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- CN104894318A CN104894318A CN201410078638.7A CN201410078638A CN104894318A CN 104894318 A CN104894318 A CN 104894318A CN 201410078638 A CN201410078638 A CN 201410078638A CN 104894318 A CN104894318 A CN 104894318A
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- cloth
- material distribution
- ring position
- blast furnace
- screw distribution
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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, particularly relate to a kind of modification method for blast furnace bell-less formula furnace roof screw distribution.
Background technology
The distributing mode of blast furnace bell-less formula furnace roof generally adopts screw distribution, and its cloth ring position arranges 11 ring positions altogether from 1 ~ 11, and according to burden distribution system, the turning angle of distributor chute completes cloth in stove successively degressively along with the weight of weighing pot collection.But, when the despite pressure fluctuations of cabinet collection of weighing or tank body itself be flexible coupling have contact time, the weight of cabinet display of weighing will be affected, especially, when weight becomes large, will directly affect the fabric weight of each ring position, cause often criticize remaining material will a cloth in the end ring, the ore weight in centre in stove is increased the weight of, suppress the development of central gas stream in blast furnace, the time one long direct motion very easily affecting blast furnace, causes the working of a furnace to worsen.
Summary of the invention
The present invention aims to provide one can when there is larger variation in cabinet weight of weighing, and in last ring position stove of cloth, centre ore is heaped, thus the modification method of the blast furnace screw distribution avoiding central gas stream to block.
For this reason, the solution that the present invention takes is:
A modification method for blast furnace screw distribution, is characterized in that, concrete modification method is:
Arrange in screw distribution material list picture and hold cloth execute flag button, cloth revision program is set up in blast furnace roof material distributing program, the screw distribution preset corresponding to last cloth ring position X1 for different ore charge kinds performs ring position Xj, and manually adjust according to ore charge kind and cabinet weight fluctuation situation of weighing, make it in ore cloth process, the turning angle that the distributor chute turning angle of last cloth ring position X1 performs ring position Xj according to screw distribution performs.
Blast furnace is in each ore cloth process, and cloth revision program detects automatically when batch of material kind and the Signal aspects holding cloth execute flag, and automatically transmits burden distribution system; When weigh in cloth process cabinet display weight with when batch of material kind predetermined weight occur ± 2t change time, manually boot cloth revision program, when cloth proceeds to last cloth ring position X1, distributor chute performs the automatic updip of turning angle of ring position Xj according to the screw distribution retrieved; To after batch cloth terminates, cloth revision program exits automatically, makes the turning angle set by each ring position of screw distribution recover to perform the roof material distributing program of former setting.
Described screw distribution performs ring position Xj 2 ring positions higher than last cloth ring position X1.
Beneficial effect of the present invention is:
Because the present invention can when the changes in weight of cabinet display of weighing be larger, by the material updip of last ring position of blast furnace roof material distributing, the material of last ring position is avoided to be distributed in centre in stove, thus reduce the weight of ore in centre, central gas stream in blast furnace is enlivened, gas stream in the stove distribution rationally, improves the working of a furnace, ensures the direct motion that blast-furnace smelting is produced.
Embodiment
The modification method of blast furnace screw distribution of the present invention, arrange to hold cloth execute flag button in screw distribution material list picture, in blast furnace roof material distributing program, set up cloth revision program simultaneously, the screw distribution preset corresponding to last cloth ring position X1 for different ore charge kinds performs ring position Xj, general Xj 2 ring positions higher than X1.And manually adjust according to ore charge kind and cabinet weight fluctuation situation of weighing, make it in ore cloth process, the turning angle that the distributor chute turning angle of last cloth ring position X1 performs ring position Xj according to screw distribution performs.
Blast furnace is in each ore cloth process, and cloth revision program detects automatically when batch of material kind and the Signal aspects holding cloth execute flag, and automatically transmits burden distribution system; When weigh in cloth process cabinet display weight with when batch of material kind predetermined weight occur ± 2t change time, manually boot cloth revision program, when cloth proceeds to last cloth ring position X1, distributor chute performs the automatic updip of turning angle of ring position Xj according to the screw distribution retrieved; To after batch cloth terminates, cloth revision program exits automatically, makes the turning angle set by each ring position of screw distribution recover to perform the roof material distributing program of former setting.
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 namely its X1 is the 4th ring position.Xj 2 the ring positions higher than X1 of cloth revision program setting, are namely set as the 6th ring position.
Under normal circumstances, during ore charge kind O1 cloth, perform according to the screw distribution material list ring position 9,8,7,6,5,4 of the former setting of roof material distributing program.
When there is larger change in the weight of cabinet display of weighing in cloth process, manually boot cloth revision program, press and hold cloth execute flag button in screw distribution material list picture, when cloth proceeds to last cloth ring position X1(the 4th ring position) time, distributor chute performs ring position Xj(the 6th ring position according to the screw distribution that retrieves) the automatic updip of turning angle; To after batch cloth terminates, cloth revision program exits automatically, and the turning angle set by each ring position of screw distribution still performs the roof material distributing program of former setting.
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 namely its X1 is the 5th ring position.The Xj of cloth revision program setting is the 7th ring position.
Under normal circumstances, during ore charge kind O2 cloth, according to the former setting of roof material distributing program screw distribution material list ring position 9,8,7,6,5, perform.
When there is larger change in the weight of cabinet display of weighing in cloth process, manually boot cloth revision program, press and hold cloth execute flag button in screw distribution material list picture, when cloth proceeds to last cloth ring position X1(the 5th ring position) time, distributor chute performs ring position Xj(the 7th ring position according to the screw distribution that retrieves) the automatic updip of turning angle; To after batch cloth terminates, cloth revision program exits automatically, and the turning angle set by each ring position of screw distribution still performs the roof material distributing program of former setting.
Claims (2)
1. a modification method for blast furnace screw distribution, is characterized in that, concrete modification method is:
Arrange in screw distribution material list picture and hold cloth execute flag, cloth revision program is set up in blast furnace roof material distributing program, the screw distribution preset corresponding to last cloth ring position X1 for different ore charge kinds performs ring position Xj, and manually adjust according to ore charge kind and cabinet weight fluctuation situation of weighing, make it in ore cloth process, the turning angle that the distributor chute turning angle of last cloth ring position X1 performs ring position Xj according to screw distribution performs;
Blast furnace is in each ore cloth process, and cloth revision program detects automatically when batch of material kind and the Signal aspects holding cloth execute flag, and automatically transmits burden distribution system; When weigh in cloth process cabinet display weight with when batch of material kind predetermined weight occur ± 2t change time, manually boot cloth revision program, when cloth proceeds to last cloth ring position X1, distributor chute performs the automatic updip of turning angle of ring position Xj according to the screw distribution retrieved; To after batch cloth terminates, cloth revision program exits automatically, makes the turning angle set by each ring position of screw distribution recover to perform the roof material distributing program of former setting.
2. the modification method of blast furnace screw distribution according to claim 1, is characterized in that, described screw distribution performs ring position Xj 2 ring positions higher than last cloth ring position X1.
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078638.7A CN104894318B (en) | 2014-03-05 | 2014-03-05 | Blast furnace screw material distribution correcting method |
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| Publication Number | Publication Date |
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| CN104894318A true CN104894318A (en) | 2015-09-09 |
| CN104894318B CN104894318B (en) | 2017-02-08 |
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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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Cited By (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 |
| CN106868240A (en) * | 2017-02-23 | 2017-06-20 | 山东钢铁股份有限公司 | Blast furnace material distribution angle verifying unit and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966062A (en) * | 1974-04-15 | 1976-06-29 | Kiyotoshi Sakai | Apparatus for charging raw materials into blast furnaces |
| SU1463765A1 (en) * | 1987-07-03 | 1989-03-07 | Донецкий научно-исследовательский институт черной металлургии | Charge distributor of loading arrangement of blast furnace |
| US4820313A (en) * | 1986-09-17 | 1989-04-11 | Kelmar Energy Corporation | Coal processing method and apparatus |
| 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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2014
- 2014-03-05 CN CN201410078638.7A patent/CN104894318B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966062A (en) * | 1974-04-15 | 1976-06-29 | Kiyotoshi Sakai | Apparatus for charging raw materials into blast furnaces |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 傅世敏等: "高炉无钟炉顶布料规律的试验研究", 《钢铁》 * |
| 彭先龙 等: "高炉无钟布料器螺旋布料规律的研究", 《钢铁》 * |
Cited By (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 |
| CN106868240A (en) * | 2017-02-23 | 2017-06-20 | 山东钢铁股份有限公司 | Blast furnace material distribution angle verifying unit and method |
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| Publication number | Publication date |
|---|---|
| CN104894318B (en) | 2017-02-08 |
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