CN107779532B - A kind of blast furnace opening device and method - Google Patents
A kind of blast furnace opening device and method Download PDFInfo
- Publication number
- CN107779532B CN107779532B CN201711127905.5A CN201711127905A CN107779532B CN 107779532 B CN107779532 B CN 107779532B CN 201711127905 A CN201711127905 A CN 201711127905A CN 107779532 B CN107779532 B CN 107779532B
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- blast furnace
- wind deflector
- support frame
- furnace
- coke
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/02—Internal forms
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/007—Conditions of the cokes or characterised by the cokes used
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a kind of blast furnace opening device and method, blast furnace opening device includes: wind deflector, and wind deflector and blast furnace crucibe outer form the first passage of edge department coke descent, and the circular hole on wind deflector is the second channel of middle part coke descent；Support frame, support frame support wind deflector, and support frame is the frame body with gap that pipe welding is formed；Ignitron, ignitron is evenly arranged on the furnace bottom of blast furnace, and is located at the lower end of support frame.Since ignitron is located at the bottom end of support frame, support frame ensure that ignitron do not broken by top furnace charge in charging process, be collapsed, and since support frame is the frame body with gap, coke can be fully burned heat importing furnace bottom in time in ignition process；Guarantee the ventilative liquid permeability of cupola well lower part coke using the sufficient space between wind deflector and support frame simultaneously；In addition, generating space after coke melts support frame and promoting furnace charge decline.Slag iron smooth discharge when i.e. the present invention realizes blast furnace opening.
Description
Technical field
The present invention relates to technical field of blast furnace process, more particularly, to a kind of blast furnace opening device and method.
Background technique
The method that modern blast furnace fills cupola well using coke, but because the combustibility of coke is poor, therefore, using full coke open furnace
When bottom house space generation it is difficult, because cupola well bottom coke cannot be lighted in time when serious, slag iron is caused to be difficult to swimmingly
Cause blow-on to have some setbacks from outlet discharge, or even induces gobbed up accident.
Therefore, how to realize that the smooth discharge of slag iron is that those skilled in the art's technology urgently to be resolved is asked when blast furnace opening
Topic.
Summary of the invention
In view of this, the first purpose of the invention is to provide a kind of blast furnace opening device, slag when realizing blast furnace opening
The smooth discharge of iron.
A second object of the present invention is to provide a kind of blast furnace opening process.
In order to realize above-mentioned first purpose, the present invention provides following schemes:
A kind of blast furnace opening device, comprising:
Blast-furnace tuyere lower end, and the wind deflector and the blast furnace crucibe is arranged in blast furnace in wind deflector, the wind deflector
Outer forms the first passage of edge department coke descent, and the wind deflector is annular wind deflector, and the circular hole on the wind deflector
For the second channel of middle part coke descent；
Support frame, support frame as described above support the wind deflector, and support frame as described above is pipe welding formation with gap
Frame body；
Ignitron, the ignitron is evenly arranged on the furnace bottom of the blast furnace, and is located at the lower end of support frame as described above.
Preferably, in above-mentioned blast furnace opening device, the wind deflector and the concentric setting of the blast furnace.
Preferably, in above-mentioned blast furnace opening device, the number of the ignitron is the 30%- of the blast-furnace tuyere sum
40%.
Preferably, in above-mentioned blast furnace opening device, the cupola well diameter of the blast furnace is less than 10 meters, the ignitron difference
It is evenly arranged on the outer diameter of cupola well Bisected Circle of the blast furnace, the Bisected Circle homalographic and is coaxially set.
Preferably, in above-mentioned blast furnace opening device, the cupola well diameter of the blast furnace is more than or equal to 10 meters, the point
Fire tube is evenly arranged on respectively on the outer diameter of the third cyclotomy of cupola well of the blast furnace, the third cyclotomy homalographic and is coaxially set.
Preferably, in above-mentioned blast furnace opening device, support frame as described above is made of scrap steel pipe.
It can be seen from the above technical scheme that blast furnace opening device disclosed by the invention, wind deflector is arranged in blast furnace
Blast-furnace tuyere lower end, and wind deflector and blast furnace crucibe outer form the first passage of edge department coke descent, the circle on wind deflector
Hole is the second channel of middle part coke descent, and coke declines along first passage and second channel.Since ignitron is located at support
The bottom end of frame, support frame ensure that ignitron do not broken by top furnace charge in charging process, be collapsed, and due to support frame be tool
There is the frame body in gap, coke can be fully burned heat importing furnace bottom in time in ignition process；Simultaneously
Guarantee the ventilative liquid permeability of cupola well lower part coke using the sufficient space between wind deflector and support frame；In addition, in furnace bottom coke
It lights, after support frame ablation, fusing, generates space and promote furnace charge decline.The combustibility i.e. of the invention that can be improved coke,
The generation in bottom house space is difficult when solving full coke open furnace, because cupola well bottom coke cannot be lighted in time when serious, causes
Slag iron is difficult to swimmingly cause blow-on to have some setbacks from outlet discharge, or even induces the generation of gobbed up accident, realizes that blast furnace is opened
Slag iron smooth discharge when furnace.
In order to realize above-mentioned second purpose, the present invention provides following schemes:
A kind of blast furnace opening process, comprising the following steps:
Step A: before baker, wind deflector, and the wind deflector and the State of Blast Furnace are installed in blast-furnace tuyere lower end in blast furnace
Cylinder outer forms the first passage of edge department coke descent, and the wind deflector is annular wind deflector, and the circle on the wind deflector
Hole is the second channel of middle part coke descent；
Step B: support frame is installed in the lower end of the wind deflector, support frame as described above supports the wind deflector, the support
Frame is the frame body with gap that pipe welding is formed；
Step C: ignitron is evenly distributed in the furnace bottom of the blast furnace.
It can be seen from the above technical scheme that blast furnace opening process disclosed by the invention, before baker, in blast-furnace tuyere
Wind deflector is installed in lower end, then, support frame is installed in the lower end of wind deflector, finally, the furnace bottom in blast furnace is evenly distributed with ignitron.It keeps out the wind
The first passage that plate and blast furnace crucibe outer are formed, coke can decline along the second channel on first passage and wind deflector,
Since ignitron is located at the bottom end of support frame, support frame ensure that ignitron is not broken by top furnace charge in charging process, presses
It collapses, and since support frame is the frame body with gap, heat importing furnace bottom can be enabled into coke in time in ignition process
Access full combustion；Guarantee the ventilative transparent liquid of cupola well lower part coke using the sufficient space between wind deflector and support frame simultaneously
Property；In addition, being lighted in furnace bottom coke, after support frame ablation, fusing, generates space and promote furnace charge decline.I.e. the present invention can
The combustibility for improving coke, the generation in bottom house space is difficult when solving full coke open furnace, because of cupola well bottom coke when serious
Charcoal cannot be lighted in time, cause slag iron to be difficult to swimmingly cause blow-on to have some setbacks from outlet discharge, or even induce gobbed up thing
Therefore generation, realize blast furnace opening when the smooth discharge of slag iron.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the overlooking structure diagram of blast furnace opening device provided by the invention；
Fig. 2 is the flow chart of blast furnace opening process provided by the invention.
Wherein, in Fig. 1:
Wind deflector 1, blast furnace 2, first passage 3, second channel 4.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art better understand technical solution of the present invention
Applying mode, the present invention is described in further detail.
Embodiment one
As shown in Figure 1, the invention discloses a kind of blast furnace opening devices.Wherein, blast furnace opening device include wind deflector 1,
Support frame and ignitron.
Blast-furnace tuyere lower end is arranged in blast furnace 2 in wind deflector 1, and wind deflector 1 and 2 cupola well outer of blast furnace form edge department coke
The first passage 3 of charcoal decline, wind deflector 1 is annular wind deflector 1, and the circular hole on wind deflector 1 is the second of middle part coke descent
The coke descent that is set as of channel 4, first passage 3 and second channel 4 is provided convenience.
Support frame is the frame body with gap that pipe welding is formed, and is mounted in blast furnace 2, is used to support wind deflector 1.
Ignitron is evenly arranged on the furnace bottom of blast furnace 2, and positioned at the lower end of support frame, support frame can protect ignitron.
Blast furnace opening device disclosed by the invention, wind deflector 1 be arranged in blast furnace 2 blast-furnace tuyere lower end, and wind deflector 1 with
2 cupola well outer of blast furnace forms the first passage 3 of edge department coke descent, and the circular hole on wind deflector 1 is the of middle part coke descent
Two channels 4, coke decline along first passage 3 and second channel 4.Since ignitron is located at the bottom end of support frame, support frame is protected
Demonstrate,proved ignitron do not broken by top furnace charge in charging process, be collapsed, and due to support frame be the frame body with gap, can
Coke is fully burned heat importing furnace bottom in time in ignition process；Wind deflector 1 and support are utilized simultaneously
Sufficient space between frame guarantees the ventilative liquid permeability of cupola well lower part coke；In addition, being lighted in furnace bottom coke, support frame is burnt
After erosion, fusing, generates space and promote furnace charge decline.The combustibility i.e. of the invention that can be improved coke, solves full coke open furnace
The generation of 2 lower space of Shi Gaolu is difficult, because cupola well bottom coke cannot be lighted in time when serious, slag iron is caused to be difficult to swimmingly
Cause blow-on to have some setbacks from outlet discharge, or even induces the generation of gobbed up accident, slag iron smooth row when realizing 2 blow-on of blast furnace
Out.
Embodiment two
The blast furnace in blast furnace opening device and embodiment one in second embodiment provided by the invention, in the present embodiment
The structure of blow-on device is similar, just repeats no more to something in common, only introduces difference.
In the present embodiment, wind deflector 1 and the concentric setting of blast furnace 2 are specifically disclosed, realizes the uniformity of coke descent.
It should be noted that wind deflector 1 can also be arranged with 2 decentraction of blast furnace.
Further, for the present inventor by creative experiment, the number for having obtained ignitron is 2 air port of blast furnace
When the 30%-40% of sum, the burning of coke is most abundant.
Further, the invention discloses the cupola well diameters of blast furnace 2 less than 10 meters, and ignitron is evenly arranged on blast furnace 2 respectively
Cupola well Bisected Circle outer diameter on, Bisected Circle homalographic and be coaxially set.The invention also discloses the cupola well of blast furnace 2 is straight
Diameter is more than or equal to 10 meters, and ignitron is evenly arranged on respectively on the outer diameter of the third cyclotomy of cupola well of blast furnace 2, third cyclotomy homalographic
And it is coaxially set.I.e. the invention discloses according to blast furnace 2 diameter difference, it is distributed two kinds of different modes of ignitron.
It in the present embodiment, specifically discloses support frame and is made of scrap steel pipe, realize that waste material utilizes.
Blast furnace opening device disclosed by the invention keeps 2 blow-on of blast furnace more efficient, quick and safe, reduces environmental pollution.
It is tested through inventor, opposite timber filling cupola well method can shorten cool furnace and pile up the timber time 50 hours or more, it keeps away simultaneously
Exempt from resistance to material temperature is greatly lowered and damage.Opposite full coke open furnace can improve direct motion condition, and it is small to accelerate stockline fall time 5
When more than, substantially can be motionless to avoid long-time stockline and be forced that wind is drawn to sit material, overcome that seat material bring furnace temperature is insufficient, slag iron stream
The hidden danger such as the dynamic poor, slag tuyere of property, at the same can timely gas recovery, coal gas diffusion loss is greatly reduced, reduces environment dirt
Dye.
Embodiment three
As shown in Fig. 2, the invention discloses a kind of blast furnace opening process, comprising the following steps:
Step S1: before baker, wind deflector is installed in blast-furnace tuyere lower end in blast furnace.
Wind deflector and blast furnace crucibe outer form the first passage of edge department coke descent, and wind deflector is annular wind deflector,
And the circular hole on wind deflector is the second channel of middle part coke descent.
Wind deflector and the concentric setting of blast furnace, circular hole is concentric with wind deflector, realizes the uniformity of coke descent.
Step S2: support frame is installed in the lower end of wind deflector, support frame supports wind deflector.
Support frame is the frame body with gap that pipe welding is formed, and specifically, it is preferable to support frame is made of scrap steel pipe,
Realize that waste material utilizes.
Step S3: ignitron is evenly distributed in the furnace bottom of blast furnace.
When the number of ignitron is the 30%-40% of blast-furnace tuyere sum, the burning of coke is most abundant.
When the cupola well diameter of blast furnace is less than 10 meters, ignitron is evenly arranged on the outer diameter of the cupola well Bisected Circle of blast furnace respectively
On, it Bisected Circle homalographic and is coaxially set；When the cupola well diameter of blast furnace is more than or equal to 10 meters, ignitron is uniformly distributed respectively
On the outer diameter of the third cyclotomy of cupola well of blast furnace, third cyclotomy homalographic and it is coaxially set.
Blast furnace opening process disclosed by the invention, before baker, in the lower end of blast-furnace tuyere, installation wind deflector is then being kept off
Support frame is installed in the lower end of aerofoil, finally, the furnace bottom in blast furnace is evenly distributed with ignitron.Wind deflector and blast furnace crucibe outer formed the
One channel, coke can decline along the second channel on first passage and wind deflector, since ignitron is located at the bottom of support frame
End, support frame ensure that ignitron do not broken by top furnace charge in charging process, be collapsed, and due to support frame be with gap
Frame body, can in ignition process in time by heat importing furnace bottom coke is fully burned；Gear is utilized simultaneously
Sufficient space between aerofoil and support frame guarantees the ventilative liquid permeability of cupola well lower part coke；In addition, lighted in furnace bottom coke, it will
After support frame ablation, fusing, generates space and promote furnace charge decline.The combustibility i.e. of the invention that can be improved coke, solves
The generation in bottom house space is difficult when full coke open furnace, because cupola well bottom coke cannot be lighted in time when serious, causes slag iron difficult
Swimmingly to cause blow-on to have some setbacks from outlet discharge, or even the generation of gobbed up accident is induced, slag when realizing blast furnace opening
The smooth discharge of iron.
" first " in the present invention, " second " etc. are to be distinguished in description, without others particular meanings.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and inventive features phase
Consistent widest scope.
Claims (7)
1. a kind of blast furnace opening device characterized by comprising
Blast-furnace tuyere lower end, and the wind deflector (1) and the blast furnace is arranged in blast furnace in wind deflector (1), the wind deflector (1)
(2) cupola well outer forms the first passage (3) of edge department coke descent, and the wind deflector (1) is annular wind deflector (1), and institute
State the second channel (4) that the circular hole on wind deflector (1) is middle part coke descent；
Support frame, support frame as described above support the wind deflector (1), and support frame as described above is the frame with gap that pipe welding is formed
Body；
Ignitron, the ignitron is evenly arranged on the furnace bottom of the blast furnace, and is located at the lower end of support frame as described above, the furnace bottom coke
It lights, can support frame as described above ablation, fusing be generated space and promote furnace charge decline.
2. blast furnace opening device according to claim 1, which is characterized in that the wind deflector (1) and the blast furnace (2) are same
Axle center setting.
3. blast furnace opening device according to claim 1, which is characterized in that the number of the ignitron is the blast furnace
(2) 30%-40% of air port sum.
4. blast furnace opening device according to claim 1, which is characterized in that the cupola well diameter of the blast furnace (2) is less than 10
Rice, the ignitron is evenly arranged on respectively on the outer diameter of the cupola well Bisected Circle of the blast furnace (2), the Bisected Circle homalographic and
It is coaxially set.
5. blast furnace opening device according to claim 1, which is characterized in that the cupola well diameter of the blast furnace (2) be greater than or
Person is equal to 10 meters, and the ignitron is evenly arranged on respectively on the outer diameter of the third cyclotomy of cupola well of the blast furnace (2), the third cyclotomy
It homalographic and is coaxially set.
6. blast furnace opening device described in any one of -5 according to claim 1, which is characterized in that support frame as described above is waste material
Steel pipe is made.
7. a kind of blast furnace opening process, which comprises the following steps:
Step A: before baker, wind deflector is installed in blast-furnace tuyere lower end in blast furnace, and outside the wind deflector and the blast furnace crucibe
Along the first passage for forming edge department coke descent, the wind deflector is annular wind deflector, and the circular hole on the wind deflector is
The second channel of middle part coke descent；
Step B: support frame is installed in the lower end of the wind deflector, support frame as described above supports the wind deflector, and support frame as described above is
The frame body with gap that pipe welding is formed；
Step C: being evenly distributed with ignitron in the furnace bottom of the blast furnace, and the furnace bottom coke is lighted, can be by support frame as described above ablation, molten
Change, generates space and promote furnace charge decline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711127905.5A CN107779532B (en) | 2017-11-15 | 2017-11-15 | A kind of blast furnace opening device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711127905.5A CN107779532B (en) | 2017-11-15 | 2017-11-15 | A kind of blast furnace opening device and method |
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| Publication Number | Publication Date |
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| CN107779532A CN107779532A (en) | 2018-03-09 |
| CN107779532B true CN107779532B (en) | 2019-10-11 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112877487A (en) * | 2021-01-27 | 2021-06-01 | 新疆八钢南疆钢铁拜城有限公司 | Device for rapidly treating and preventing red coke collapse in air port small sleeve chamber cleaning |
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|---|---|---|---|---|
| CN201534851U (en) * | 2009-08-26 | 2010-07-28 | 鞍钢股份有限公司 | Blast furnace baking device |
| CN102899430A (en) * | 2012-09-19 | 2013-01-30 | 攀钢集团攀枝花钢钒有限公司 | Multipoint stereoscopic ignition device and method for blast furnace blow-in and blast furnace containing the device |
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2017
- 2017-11-15 CN CN201711127905.5A patent/CN107779532B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201534851U (en) * | 2009-08-26 | 2010-07-28 | 鞍钢股份有限公司 | Blast furnace baking device |
| CN102899430A (en) * | 2012-09-19 | 2013-01-30 | 攀钢集团攀枝花钢钒有限公司 | Multipoint stereoscopic ignition device and method for blast furnace blow-in and blast furnace containing the device |
| CN203238278U (en) * | 2013-03-11 | 2013-10-16 | 宝钢不锈钢有限公司 | Air guide device for blowing-in preheating furnace hearth of blast furnace |
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| 高炉开炉点火方法改进实践;高广旅;《炼铁》;19861031(第5期);第22-25页 * |
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