CN109593902A - A kind of big canister mixing cloth system of blast furnace roof and method - Google Patents
A kind of big canister mixing cloth system of blast furnace roof and method Download PDFInfo
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- CN109593902A CN109593902A CN201811464885.5A CN201811464885A CN109593902A CN 109593902 A CN109593902 A CN 109593902A CN 201811464885 A CN201811464885 A CN 201811464885A CN 109593902 A CN109593902 A CN 109593902A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
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Abstract
The present invention provides a kind of big canister mixing cloth system of blast furnace roof and methods, the big canister mixing cloth system of blast furnace roof includes two big tank, two canisters, turning-plate chute and central throat tube, two big tank opposed, side-by-side arrangement, two canisters keep arranged in series up and down, and be located on the plane of symmetry of two big tank, canister volume is the 20~25% of big tank.Turning-plate chute is arranged in above canister and two big tank, can be rotated horizontally and be overturn in vertical direction；Central throat tube is arranged in below lower canister and two big tank.4 batch cans have balanced pressure system independent and diffusion system, it in conjunction with specific process requirements, flexibly arranges in pairs or groups, sets cloth timing, the problem of can solve the classification sub-prime loading blast furnace of above-mentioned crude fuel, which belongs to metallurgical equipment research and improved technical field.
Description
Technical field
The invention belongs to metallurgical equipment research and improved technical fields, are related to a kind of big canister mixing cloth of blast furnace roof
System and method.
Background technique
With the continuous exploitation of coal resources and iron ore deposit, the crude fuel of blast furnace ironmaking constantly changes, including coke
There is fluctuation in the indexs such as the granularity of charcoal and sinter, intensity, have very big negative effect to the steady production of blast furnace.And blast furnace is different
Requirement of the position (especially radially) to crude fuel is different, and there is also larger differences for gas permeability.In order to make former combustion high-quality and inferior
Expect that the distribution in blast furnace is controllable, must just realize that the classification sub-prime of crude fuel is packed into cloth.And present most of blast furnaces
Using furnace roof and tank cloth system, batch can entrance and exit is close to blast furnace center line side, and crude fuel is caused to be packed into batch can
During, material flow track collides batch can side wall, thus phenomena such as apparent mixing naturally occurs and is segregated naturally, it can not basis
The classification sub-prime that crude fuel is neatly realized in the requirement of production enters furnace.Also some blast furnace uses furnace roof string tank cloth system,
It equally exists and cannot achieve the problem of crude fuel classification sub-prime is packed into.
Summary of the invention
The object of the present invention is to provide a kind of big canister mixing cloth system of blast furnace roof and methods, can be realized blast furnace original
The classification sub-prime of fuel enters furnace, and classification sub-prime effect is good, shortens the period of scrap build and installation, enters crude fuel classification sub-prime
Furnace continues efficiently to carry out, and can improve the efficiency of furnace that enters of crude fuel on the whole, improves rate of driving and hot metal output.
For achieving the above object, the technical solution adopted by the present invention is that:
A kind of big canister mixing cloth system of blast furnace roof, including two big tank are eastern tank and on western tank, two canisters are
Canister and lower canister, turning-plate chute and central throat tube；Two big tank is arranged in juxtaposition, and two canisters are contacted in short transverse and arranged,
Two canisters are mounted on the perpendicular bisector position of two big tank central junction line；Turning-plate chute is arranged on canister and two big tank
Side can rotate horizontally and overturn in vertical direction；Central throat tube is arranged in below lower canister and two big tank.
Further, the volume of two canisters is identical in the big canister mixing cloth system of the blast furnace roof, holds for big tank
Long-pending 20~25%, the inner wall inclined-plane of two canisters and the angle of horizontal direction are 50~60 degree.
Further, the feed inlet of upper canister and two big tank in the big canister mixing cloth system of the blast furnace roof
Feed inlet is located at sustained height, and the discharge gate of upper canister and the gating location of lower canister, angle are coincide, the discharging of lower canister
The discharge port of mouth and two big tank is located at sustained height.
Further, the discharge port diameter of central throat tube is that big tank goes out in the big canister mixing cloth system of the blast furnace roof
1~1.2 times of material mouth diameter.
Further, in the big canister mixing cloth system of the blast furnace roof central throat tube be infundibulate, funnel it is upper
Portion's structure can encase the discharge port range of two big tank discharge port and lower canister outside.
Further, two upturned positions of turning-plate chute correspond to two in the big canister mixing cloth system of the blast furnace roof
A big tank, the corresponding upper canister of another upturned position.
Further, turning-plate chute is fed according to the batch can of charging in the big canister mixing cloth system of the blast furnace roof
Mouthful position, in the horizontal direction rotation within the scope of 360 degree；It is overturn according to the angle of batch can mouth at 0~50 degree of vertical direction.
Further, big tank and canister are respectively equipped with balanced pressure system in the big canister mixing cloth system of the blast furnace roof
And diffusion system.
Using the distributing method of the big canister mixing cloth system of above-mentioned blast furnace roof, comprising the following steps:
(1) according to the actual conditions of crude fuel and the needs of conditioning of BF, determine that crude fuel classification sub-prime enters the specific of furnace
It is required that and corresponding burden distribution matrix；
(2) eastern tank is diffused, while turning-plate chute is rotated horizontally to above eastern tank feed inlet, and the turnover panel that fascinates slips
The material of a grade is packed into eastern tank by feeding system and turning-plate chute later to eastern tank feed inlet by slot；
(3) being packed into terminates, and diffuses to upper canister, while turning-plate chute is rotated horizontally onto upper canister feed inlet
Side, and the supreme canister feed inlet of the turning-plate chute that fascinates later are packed into the material of b grade by feeding system and turning-plate chute
Canister；
(4) eastern tank is pressed, pressure terminates, and eastern tank material valve is opened, the material of a grade is discharged into central throat tube,
And it executes burden distribution matrix and is packed into blast furnace；
(5) it presses in eastern tank and while toward blast furnace material distribution, lower canister diffuse and be discharged into down the material of b grade
Canister；To the end of eastern tank discharge, lower canister is pressed, and the material of b grade is packed into height according to corresponding burden distribution matrix
Furnace corresponding region；
(6) synchronously, western tank is diffused, while turning-plate chute is rotated horizontally to above western tank feed inlet, and is inclined
Other kinds of material is packed into western tank by feeding system and turning-plate chute later to western tank feed inlet by dynamic turning-plate chute；To
B grade material is packed into blast furnace and terminates in eastern tank, and western tank is pressed, western tank material valve is opened, by other type materials in western tank
It is packed into blast furnace；
(7) step (2)~(6) are repeated, the circulate operation that crude fuel is packed into blast furnace is formed.
Compared compared with Strand Feeding Technique, beneficial effects of the present invention at least that:
(1) the classification sub-prime that different crude fuels can be achieved enters furnace, if ordinary coke and high grade coke separately enter furnace, small mine with
Common ore is separated into furnace；
(2) small to the revamping workload of existing equipment, the transformation period is short, reduces investment outlay；
(3) crude fuel classification sub-prime enters the sustainable efficient progress of furnace, the adaptation for fluctuating blast furnace ironmaking to raw material and fuel quality
Property it is stronger, such as original fuel supply situation and production fluctuate when, different stage different quality crude fuel can be adjusted flexibly
Proportion and loading sequence make blast furnace maintain stable smooth operation for a long time to cope with the variation of external environment, and reduction damping down reduces combustion
Material consumption, reduces ironmaking cost；
(4) whole efficiency for improving feeding system, improves the hot metal output of unit time.
Detailed description of the invention
Fig. 1 is the assembling structure front view of the big canister mixing cloth system of blast furnace roof in the present invention, wherein eastern tank 1-1
(heavy line), western tank 1-2 (heavy line), upper canister 1-3 (fine line), lower canister 1-4 (fine line), central throat tube 1-5, turnover panel
Chute 1-6；
Fig. 2 is the horizontal rotational positions top view of turning-plate chute, and 2-1 is the upturned position of eastern tank, the rotation that 2-2 is western tank
Position, the rotation position that 2-3 is upper canister；
Fig. 3 is the structure chart of infundibulate central throat tube, and wherein 3-1 is center trunnion front view, 3-2 is that center trunnion is overlooked
Figure.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the present invention will be further described:
For achieving the above object, the technical solution adopted by the present invention is that:
A kind of big canister mixing cloth system of blast furnace roof, including two big tank are eastern tank and on western tank, two canisters are
Canister and lower canister, turning-plate chute and central throat tube.
Two big tank is arranged in juxtaposition, and two canisters are contacted in short transverse and arranged, two canisters are in short transverse series connection cloth
It sets, generally parallel with big tank, canister rotating shaft moves outward on the two big tank plane of symmetry, and suitably, and moving distance is about
1~1.5 times of canister maximum cross section diameter.The volume of two canisters is identical, is the 20~25% of big tank volume, two canisters
Inner wall inclined-plane and the angle of horizontal direction be 50~60 degree, the feed inlet of the feed inlet of upper canister and two big tank is located at same
Highly, the gating location of the discharge gate of upper canister and lower canister, angle are coincide, the discharge port of lower canister and two big tank
Discharge port is located at sustained height.Big tank and canister are respectively equipped with balanced pressure system and diffusion system.
Turning-plate chute is arranged in above canister and two big tank, can be rotated horizontally and be overturn in vertical direction.Turnover panel slips
The corresponding two big tanks of two upturned positions of slot, the corresponding upper canister of another upturned position.Turning-plate chute is according to the material of charging
Tank gating location rotates within the scope of 360 degree in the horizontal direction；It is overturn according to the angle of batch can mouth at 0~50 degree of vertical direction.
Central throat tube is arranged in below lower canister and two big tank, and the discharge port diameter of central throat tube is that big tank discharge port is straight
1~1.2 times of diameter, central throat tube are infundibulate, and the superstructure of funnel can encase two big tank discharge port and lower canister outside
Discharge port range.
Using the distributing method of the big canister mixing cloth system of above-mentioned blast furnace roof, comprising the following steps:
(1) according to the actual conditions of crude fuel and the needs of conditioning of BF, determine that crude fuel classification sub-prime enters the specific of furnace
It is required that and corresponding burden distribution matrix；
(2) eastern tank is diffused, while turning-plate chute is rotated horizontally to above eastern tank feed inlet, and the turnover panel that fascinates slips
The material of a grade is packed into eastern tank by feeding system and turning-plate chute later to eastern tank feed inlet by slot；
(3) being packed into terminates, and diffuses to upper canister, while turning-plate chute is rotated horizontally onto upper canister feed inlet
Side, and the supreme canister feed inlet of the turning-plate chute that fascinates later are packed into the material of b grade by feeding system and turning-plate chute
Canister；
(4) eastern tank is pressed, pressure terminates, and eastern tank material valve is opened, the material of a grade is discharged into central throat tube,
And it executes burden distribution matrix and is packed into blast furnace；
(5) it presses in eastern tank and while toward blast furnace material distribution, lower canister diffuse and be discharged into down the material of b grade
Canister；To the end of eastern tank discharge, lower canister is pressed, and the material of b grade is packed into height according to corresponding burden distribution matrix
Furnace corresponding region；
(6) synchronously, western tank is diffused, while turning-plate chute is rotated horizontally to above western tank feed inlet, and is inclined
Other kinds of material is packed into western tank by feeding system and turning-plate chute later to western tank feed inlet by dynamic turning-plate chute；To
B grade material is packed into blast furnace and terminates in eastern tank, and western tank is pressed, western tank material valve is opened, by other type materials in western tank
It is packed into blast furnace；
(7) step (2)~(6) are repeated, the circulate operation that crude fuel is packed into blast furnace is formed.
After the completion of cloth, the material of b grade enters blast furnace central area；The material of a grade is distributed in except central area
Peripheral region.Other kinds of material is then arranged with a grade material layering.Each batch of b grade material is in blast furnace central area from upper
Get up to lower perforation, ensure that blast furnace central gas stream, the skeleton function of dead stock column and the good ventilative liquid permeability of the bed of material, favorably
In the fluctuation for resisting extraneous crude fuel condition, the stability of the working of a furnace is improved.And before improvement, blast furnace center there is no aggregation and on
Under the perforation of each layer b grade material, the skeleton function of unstable, the dead stock column of central gas stream is weaker, and bed of material liquid permeability of breathing freely is poor,
And then working of a furnace bad stability.
Claims (9)
1. a kind of big canister mixing cloth system of blast furnace roof, which is characterized in that cloth system include two big tank be eastern tank with
The i.e. upper canister of western tank, two canisters and lower canister, turning-plate chute and central throat tube；Two big tank is arranged in juxtaposition, and two canisters exist
Short transverse arranged in series, generally parallel with big tank, canister rotating shaft moves outward on the two big tank plane of symmetry, and suitably
Dynamic, moving distance is about 1~1.5 times of canister maximum cross section diameter；Turning-plate chute is arranged on canister and two big tank
Side can rotate horizontally and overturn in vertical direction；Central throat tube is arranged in below lower canister and two big tank.
2. the big canister mixing cloth system of blast furnace roof according to claim 1, which is characterized in that two canisters
Volume it is identical, be the 20~25% of big tank volume, the inner wall inclined-plane of two canisters and the angle of horizontal direction are 50~60 degree.
3. the big canister mixing cloth system of blast furnace roof according to claim 1 or 2, which is characterized in that described is upper small
The feed inlet of the feed inlet of tank and two big tank is located at sustained height, the gating location of the discharge gate of upper canister and lower canister,
Angle is coincide, and the discharge port of the discharge port of lower canister and two big tank is located at sustained height.
4. the big canister mixing cloth system of blast furnace roof according to claim 1, which is characterized in that the central throat tube
Discharge port diameter be 1~1.2 times of big tank discharge port diameter.
5. the big canister mixing cloth system of blast furnace roof according to claim 1 or 4, which is characterized in that the center
Trunnion is infundibulate, and the superstructure of funnel can encase the discharge port range of two big tank discharge port and lower canister outside.
6. the big canister mixing cloth system of blast furnace roof according to claim 1, which is characterized in that the turning-plate chute
The corresponding two big tanks of two upturned positions, the corresponding upper canister of another upturned position.
7. the big canister mixing cloth system of blast furnace roof according to claim 1 or 6, which is characterized in that the turnover panel
Chute rotates within the scope of 360 degree according to the batch can gating location of charging, in the horizontal direction；According to the angle of batch can mouth vertical
The overturning of 0~50 degree of direction.
8. the big canister mixing cloth system of blast furnace roof according to claim 1, which is characterized in that the big tank and small
Tank is respectively equipped with balanced pressure system and diffusion system.
9. a kind of big canister mixing distributing method of blast furnace roof, which comprises the following steps:
(1) according to the actual conditions of crude fuel and the needs of conditioning of BF, determine that crude fuel classification sub-prime enters the specific requirement of furnace
And corresponding burden distribution matrix；
(2) eastern tank is diffused, while turning-plate chute is rotated horizontally to above eastern tank feed inlet, and fascinate turning-plate chute extremely
The material of a grade is packed into eastern tank by feeding system and turning-plate chute later by eastern tank feed inlet；
(3) being packed into terminates, and diffuses to upper canister, while turning-plate chute is rotated horizontally to above upper canister feed inlet, and
The material of b grade is packed into upper canister by feeding system and turning-plate chute later by the supreme canister feed inlet of the turning-plate chute that fascinates；
(4) eastern tank is pressed, pressure terminates, and opens eastern tank material valve, the material of a grade is discharged into central throat tube, and hold
Row burden distribution matrix is packed into blast furnace；
(5) it presses in eastern tank and while toward blast furnace material distribution, release is carried out to lower canister and is discharged into down the material of b grade small
Tank；To the end of eastern tank discharge, lower canister is pressed, and the material of b grade is packed into blast furnace according to corresponding burden distribution matrix
Corresponding region；
(6) synchronously, western tank is diffused, while turning-plate chute is rotated horizontally to above western tank feed inlet, and fascinate and turn over
Other kinds of material is packed into western tank by feeding system and turning-plate chute later to western tank feed inlet by plate chute；To eastern tank
Interior b grade material, which is packed into blast furnace, to be terminated, and western tank is pressed, western tank material valve is opened, other type materials in western tank are packed into
Blast furnace；
(7) step (2)~(6) are repeated, the circulate operation that crude fuel is packed into blast furnace is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464885.5A CN109593902B (en) | 2018-12-03 | 2018-12-03 | Blast furnace top big and small tank mixed material distribution system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464885.5A CN109593902B (en) | 2018-12-03 | 2018-12-03 | Blast furnace top big and small tank mixed material distribution system and method |
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| Publication Number | Publication Date |
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| CN109593902A true CN109593902A (en) | 2019-04-09 |
| CN109593902B CN109593902B (en) | 2020-11-24 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143777A (en) * | 1977-10-06 | 1979-03-13 | Zhdanovsky Metallurgichesky Institut | Blast furnace charging device |
| CN2034584U (en) * | 1988-04-01 | 1989-03-22 | 北京钢铁学院 | Blast furnace with appliance for distributing burden |
| CN101709340A (en) * | 2009-10-30 | 2010-05-19 | 宝钢集团新疆八一钢铁有限公司 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
| CN102134622A (en) * | 2010-01-26 | 2011-07-27 | 沈阳东方钢铁有限公司 | Bell-less blast furnace distributing device |
| CN102296134A (en) * | 2011-09-09 | 2011-12-28 | 中冶南方工程技术有限公司 | Bell-less top three 3-parallel bunker valve box |
| CN107881272A (en) * | 2017-10-25 | 2018-04-06 | 江苏省沙钢钢铁研究院有限公司 | A kind of method in blast furnace internal classification sub-prime cloth |
-
2018
- 2018-12-03 CN CN201811464885.5A patent/CN109593902B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143777A (en) * | 1977-10-06 | 1979-03-13 | Zhdanovsky Metallurgichesky Institut | Blast furnace charging device |
| CN2034584U (en) * | 1988-04-01 | 1989-03-22 | 北京钢铁学院 | Blast furnace with appliance for distributing burden |
| CN101709340A (en) * | 2009-10-30 | 2010-05-19 | 宝钢集团新疆八一钢铁有限公司 | Single-bucket serial-bucket charging method applied to bell-free blast furnaces |
| CN102134622A (en) * | 2010-01-26 | 2011-07-27 | 沈阳东方钢铁有限公司 | Bell-less blast furnace distributing device |
| CN102296134A (en) * | 2011-09-09 | 2011-12-28 | 中冶南方工程技术有限公司 | Bell-less top three 3-parallel bunker valve box |
| CN107881272A (en) * | 2017-10-25 | 2018-04-06 | 江苏省沙钢钢铁研究院有限公司 | A kind of method in blast furnace internal classification sub-prime cloth |
Non-Patent Citations (1)
| Title |
|---|
| 王万元: "《炼铁时间-高炉操作的思考与感悟》", 30 November 2016 * |
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