CN104073580A - Blast furnace belly pipe/tuyere small sleeve contact site air-leakage on-line adjustment method - Google Patents
Blast furnace belly pipe/tuyere small sleeve contact site air-leakage on-line adjustment method Download PDFInfo
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- CN104073580A CN104073580A CN201410325589.2A CN201410325589A CN104073580A CN 104073580 A CN104073580 A CN 104073580A CN 201410325589 A CN201410325589 A CN 201410325589A CN 104073580 A CN104073580 A CN 104073580A
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- horsepower
- pull bar
- belly pipe
- small sleeve
- wind
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Abstract
The invention relates to a blast furnace belly pipe/tuyere small sleeve contact site air-leakage on-line adjustment method, belonging to the field of metallurgy. The method comprises the following steps: (1) tightening an upper drawbar assembly, and meanwhile, tightening a lower horsepower drawbar; (2) pulling an elbow lug, and loosening a drawbar assembly; adjusting a lower compensator; (3) tightening the upper drawbar assembly, obliquely pulling the belly pipe to the left with a 3T chain block, hitting the left horsepower drawbar, and hitting the left horsepower drawbar; (4) tightening the upper drawbar assembly, obliquely pulling the belly pipe to the right with the 3T chain block, hitting the left horsepower drawbar, and hitting the right horsepower drawbar; (5) pulling the elbow lug, loosening the upper drawbar assembly, hitting the right horsepower drawbar, and hitting the left horsepower drawbar; and (6) pulling the elbow lug, loosening the upper drawbar assembly, and hitting the left horsepower drawbar. The method prolongs the wind-off period of the blast furnace.
Description
Technical field
The invention belongs to field of metallurgy.
Background technology
The air-supply arrangement that blast-furnace body system is installed, for blast-furnace smelting provides heat energy, propulsion source.Serious if under normal production status, bent damage, sinking appear in tuyere small sleeve, rubescent, air-supply arrangement runs wind, according to experience in the past, can affect blast furnace and be forced to damping down and change tuyere small sleeve, reinstall, adjust air-supply arrangement.
Summary of the invention
In order to solve a difficult problem that needs damping down could revise air-supply arrangement race wind, extend the blast furnace staying cycle, avoid conditions of blast furnace fluctuation, the invention provides straight blowing pipe of blast furnace and tuyere small sleeve contact site and run the online inflation method of wind.
technical scheme of the present invention:
Straight blowing pipe of blast furnace and tuyere small sleeve contact site run the online inflation method of wind, take different inflation method according to the position of running wind, comprise following any one or following arbitrary combination content:
(1), when belly pipe contacts top race wind with tuyere small sleeve, tension top rod assembly is tightened bottom horsepower pull bar simultaneously;
(2), when wind is run in belly pipe and tuyere small sleeve contact surface bottom, draw elbow lug, loose top rod assembly with 3T jack; Adjust bottom loop expansion pipe, loop expansion pipe is unclamped near the upper and lower flange pull bar inner nut of high furnace side, tighten upper and lower flange pull-rod nut outside loop expansion pipe simultaneously, nut is adjusted stroke maximum and is no more than 10mm; Tighten bottom horsepower pull bar simultaneously, with belly pipe rear portion, whisky jack top, tighten bottom horsepower pull bar simultaneously;
(3) when wind is run on belly pipe and tuyere small sleeve contact surface upper left side, tension top rod assembly, with 3T jack oblique pull belly pipe left, then makes right side horsepower pull bar, then makes left side horsepower pull bar;
(4), when wind is run in belly pipe and tuyere small sleeve contact surface upper right side, tension top rod assembly, with 3T jack oblique pull belly pipe to the right, then makes left side horsepower pull bar, then makes right side horsepower pull bar;
(5), when wind is run in belly pipe and tuyere small sleeve contact surface lower left, draw elbow lug, loose top rod assembly with 3T jack, then make right side horsepower pull bar, make again left side horsepower pull bar, if desired with belly pipe rear portion, whisky jack top, urgent bottom horsepower pull bar simultaneously;
(6) when wind is run in belly pipe and tuyere small sleeve contact surface lower right, draw elbow lug with 3T jack, loose top rod assembly, then makes left side horsepower pull bar.
The present invention can avoid drawing because air-supply arrangement runs wind the blast furnace staying causing, and has ensured that blast furnace can move continually and steadily, avoids the working of a furnace fluctuation and downslide that cause because of damping down.Save damping down expense and damping down and lose approximately 3,000,000 yuan.
Embodiment
From on November 7th, 2013 blast furnace opening so far, use altogether this adjustment method to carry out emergent management six times to No. 6 air-supply apparatus of blast furnace, avoided six times because air-supply arrangement runs wind and draw the blast furnace staying causing, effect is remarkable.
(1), when belly pipe contacts top race wind with tuyere small sleeve, tension top rod assembly is tightened bottom horsepower pull bar simultaneously;
(2), when wind is run in belly pipe and tuyere small sleeve contact surface bottom, draw elbow lug, loose top rod assembly with 3T jack; Adjust bottom loop expansion pipe, loop expansion pipe is unclamped near the upper and lower flange pull bar inner nut of high furnace side, tighten upper and lower flange pull-rod nut outside loop expansion pipe simultaneously, nut is adjusted stroke maximum and is no more than 10mm; Tighten bottom horsepower pull bar simultaneously, with belly pipe rear portion, whisky jack top, tighten bottom horsepower pull bar simultaneously;
(3) when wind is run on belly pipe and tuyere small sleeve contact surface upper left side, tension top rod assembly, with 3T jack oblique pull belly pipe left, then makes right side horsepower pull bar, then makes left side horsepower pull bar;
(4), when wind is run in belly pipe and tuyere small sleeve contact surface upper right side, tension top rod assembly, with 3T jack oblique pull belly pipe to the right, then makes left side horsepower pull bar, then makes right side horsepower pull bar;
(5), when wind is run in belly pipe and tuyere small sleeve contact surface lower left, draw elbow lug, loose top rod assembly with 3T jack, then make right side horsepower pull bar, make again left side horsepower pull bar, if desired with belly pipe rear portion, whisky jack top, urgent bottom horsepower pull bar simultaneously;
(6) when wind is run in belly pipe and tuyere small sleeve contact surface lower right, draw elbow lug with 3T jack, loose top rod assembly, then makes left side horsepower pull bar.
Claims (1)
1. straight blowing pipe of blast furnace and tuyere small sleeve contact site run the online inflation method of wind, comprise following any one or following arbitrary combination content:
(1), when belly pipe contacts top race wind with tuyere small sleeve, tension top rod assembly is tightened bottom horsepower pull bar simultaneously;
(2), when wind is run in belly pipe and tuyere small sleeve contact surface bottom, draw elbow lug, loose top rod assembly with 3T jack; Adjust bottom loop expansion pipe, loop expansion pipe is unclamped near the upper and lower flange pull bar inner nut of high furnace side, tighten upper and lower flange pull-rod nut outside loop expansion pipe simultaneously, nut is adjusted stroke maximum and is no more than 10mm; Tighten bottom horsepower pull bar simultaneously, with belly pipe rear portion, whisky jack top, tighten bottom horsepower pull bar simultaneously;
(3) when wind is run on belly pipe and tuyere small sleeve contact surface upper left side, tension top rod assembly, with 3T jack oblique pull belly pipe left, then makes right side horsepower pull bar, then makes left side horsepower pull bar;
(4), when wind is run in belly pipe and tuyere small sleeve contact surface upper right side, tension top rod assembly, with 3T jack oblique pull belly pipe to the right, then makes left side horsepower pull bar, then makes right side horsepower pull bar;
(5), when wind is run in belly pipe and tuyere small sleeve contact surface lower left, draw elbow lug, loose top rod assembly with 3T jack, then make right side horsepower pull bar, make again left side horsepower pull bar, if desired with belly pipe rear portion, whisky jack top, urgent bottom horsepower pull bar simultaneously;
(6) when wind is run in belly pipe and tuyere small sleeve contact surface lower right, draw elbow lug with 3T jack, loose top rod assembly, then makes left side horsepower pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325589.2A CN104073580B (en) | 2014-07-10 | 2014-07-10 | Straight blowing pipe of blast furnace and tuyere small sleeve contact site run wind on-line tuning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325589.2A CN104073580B (en) | 2014-07-10 | 2014-07-10 | Straight blowing pipe of blast furnace and tuyere small sleeve contact site run wind on-line tuning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104073580A true CN104073580A (en) | 2014-10-01 |
| CN104073580B CN104073580B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410325589.2A Active CN104073580B (en) | 2014-07-10 | 2014-07-10 | Straight blowing pipe of blast furnace and tuyere small sleeve contact site run wind on-line tuning method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745934Y (en) * | 2005-04-29 | 2005-12-14 | 田建全 | Blast furnace air intake device |
| CN201739693U (en) * | 2010-06-25 | 2011-02-09 | 武汉航天波纹管股份有限公司 | Adjustable blast furnace air supply device |
| CN201809367U (en) * | 2010-06-22 | 2011-04-27 | 新兴河北工程技术有限公司 | Water-cooled belly pipe |
| CN201890889U (en) * | 2010-11-11 | 2011-07-06 | 林州市马氏炼铁技术研究开发有限公司 | Blast furnace blast sealing structure |
| CN202610248U (en) * | 2012-04-20 | 2012-12-19 | 河北钢铁股份有限公司邯郸分公司 | Drill key for handling air leakage of contact surface between tuyere small sleeve and belly pipe of blast furnace |
-
2014
- 2014-07-10 CN CN201410325589.2A patent/CN104073580B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2745934Y (en) * | 2005-04-29 | 2005-12-14 | 田建全 | Blast furnace air intake device |
| CN201809367U (en) * | 2010-06-22 | 2011-04-27 | 新兴河北工程技术有限公司 | Water-cooled belly pipe |
| CN201739693U (en) * | 2010-06-25 | 2011-02-09 | 武汉航天波纹管股份有限公司 | Adjustable blast furnace air supply device |
| CN201890889U (en) * | 2010-11-11 | 2011-07-06 | 林州市马氏炼铁技术研究开发有限公司 | Blast furnace blast sealing structure |
| CN202610248U (en) * | 2012-04-20 | 2012-12-19 | 河北钢铁股份有限公司邯郸分公司 | Drill key for handling air leakage of contact surface between tuyere small sleeve and belly pipe of blast furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104073580B (en) | 2015-11-25 |
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