CN109355449A - Blast furnace ironmaking equipment - Google Patents
Blast furnace ironmaking equipment Download PDFInfo
- Publication number
- CN109355449A CN109355449A CN201811548167.6A CN201811548167A CN109355449A CN 109355449 A CN109355449 A CN 109355449A CN 201811548167 A CN201811548167 A CN 201811548167A CN 109355449 A CN109355449 A CN 109355449A
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- furnace body
- layer furnace
- air supply
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- 239000011449 brick Substances 0.000 claims description 36
- 238000001816 cooling Methods 0.000 claims description 34
- 239000002893 slag Substances 0.000 claims description 19
- 238000010079 rubber tapping Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- 229910052742 iron Inorganic materials 0.000 description 13
- 238000005457 optimization Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
-
- 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
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The present invention provides a kind of blast furnace ironmaking equipment, be related to technical field of metallurgical iron-making devices, outer layer furnace body, bottom plate including internal layer furnace body, for enclosing the furnace chamber for ironmaking with internal layer furnace body and several be respectively arranged at the air-supply assembly of internal layer lower portion of furnace body and outer layer lower portion of furnace body.Blast furnace ironmaking equipment provided by the invention, utilize internal layer furnace body, outer layer furnace body and the bottom plate of lower section enclose the furnace chamber for ironmaking, have the function that air-supply assembly is respectively set to improve air supply efficiency inside and outside the furnace chamber of annular, avoid traditional blast furnace internal diameter it is excessive caused by blow ineffective problem, the air-supply assembly for being arranged on the inside of internal layer lower portion of furnace body simultaneously and being set to outer layer lower portion of furnace body periphery can effectively blow to the furnace chamber at middle part from the furnace chamber two sides of annular, improve ironmaking efficiency, avoid because in furnace blow diameter it is excessive caused by ineffective problem of blowing at center, air-supply is reduced to require, reduce production cost.
Description
Technical field
The invention belongs to technical field of metallurgical iron-making devices, are to be related to a kind of blast furnace ironmaking equipment more specifically.
Background technique
Exist using coke, natural rich lump ore and the flux such as the iron-stones such as sinter and pellet and lime stone, dolomite
The method of continuous production liquid pig iron is the important ring of modern steel production blast furnace ironmaking in vertical reactor i.e. blast furnace
Section.At present blast furnace ironmaking mainly comprise the processes of using high basicity sinter, acid pellet with addition of a small amount of natural lump ore furnace charge knot
Structure, fuel are mainly that coke and coal dust by blasting 1000-1250 degrees Celsius of hot wind complete the reduction of iron-bearing material, finally
The production of the pig iron is completed by slag iron separation.
With the continuous expansion of blast furnace dischargeable capacity, the diameter of cupola well is continuously available increase, and passing through property of air-flow is deteriorated, causes
It is poor to the center airflow effects of blast furnace, can also occur not can be carried out the dead stock column effectively smelted in the middle part of furnace body when serious,
In order to guarantee Gas Flow distribution reasonability, although it causes to send now by the way of oxygen-enriched high wind-warm syndrome air blast
Eolian significantly promotion, the serious production cost for improving ironmaking.
Summary of the invention
The purpose of the present invention is to provide blast furnace ironmaking equipment, difficult to solve blast furnace ironmaking air-supply existing in the prior art
Spend technical problem big, at high cost.
To achieve the above object, the technical solution adopted by the present invention is that: provide blast furnace ironmaking equipment, including internal layer furnace body,
It is sheathed on internal layer furnace body periphery and is used to enclose the outer layer furnace body of the furnace chamber for ironmaking with internal layer furnace body, for connecting internal layer
The bottom plate of furnace body and outer layer furnace body lower end and several be respectively arranged at internal layer lower portion of furnace body and outer layer lower portion of furnace body and to
The air-supply assembly of oven cavity opening.
As further optimization, fire resisting group is respectively equipped on the outer wall of internal layer furnace body and on the inner wall of outer layer furnace body
Part, refractory components include fire brick layer and the cooling tube that is respectively arranged inside fire brick layer.
As further optimization, fire brick layer includes several along the peripheral direction of internal layer furnace body or outer layer furnace body
The refractory brick that circumferential direction is sequentially arranged, cooling tube along the circumferential direction run through several refractory brick and are set to inside refractory brick.
As further optimization, the upper surface of refractory brick is equipped with the groove of opening upwards, cooling tube setting annular in shape
In in groove.
As further optimization, the section of cooling tube is rectangle, and cooling tube is copper material component.
As further optimization, the distance of center to the furnace chamber of groove is greater than the center of groove to internal layer furnace body or outer layer
The distance of furnace body.
As further optimization, air-supply assembly includes the first air supply tube that outlet tilts down and outlet inclination upwards
The second air supply tube, the first air supply tube and the second air supply tube on internal layer furnace body are spaced on the circumferencial direction of internal layer furnace body
Setting, the first air supply tube and the second air supply tube on outer layer furnace body are spaced setting, position on the circumferencial direction of outer layer furnace body
It is corresponded in the first air supply tube on internal layer furnace body with the first air supply tube being located on outer layer furnace body, on internal layer furnace body
Second air supply tube is corresponded with the second air supply tube being located on outer layer furnace body.
As further optimization, the first air supply tube on internal layer furnace body is uniform on the circumferencial direction of internal layer furnace body
Arrangement；The first air supply tube on outer layer furnace body is uniformly arranged on the circumferencial direction of outer layer furnace body；On internal layer furnace body
The second air supply tube uniformly arrange on the circumferencial direction of internal layer furnace body；The second air supply tube on outer layer furnace body is in outer layer furnace
It uniformly arranges on the circumferencial direction of body.
As further optimization, the outlet end of the first air supply tube on internal layer furnace body protrudes from the outer of internal layer furnace body
Wall setting；The outlet end of the first air supply tube on outer layer furnace body protrudes from the inner wall setting of outer layer furnace body；Positioned at internal layer furnace
The outlet end of the second air supply tube on body is flushed with the outer wall of internal layer furnace body；The outlet of the second air supply tube on outer layer furnace body
End is flushed with the inner wall of outer layer furnace body.
As further optimization, the lower part of outer layer furnace body is equipped with several and along the circumferential direction uniformly arranges and connect with furnace chamber
Logical slag notch, the lower part of outer layer furnace body are additionally provided with several tapping holes along the circumferential direction uniformly arranged and be connected to furnace chamber,
The height of tapping hole is lower than the height of slag notch.
The beneficial effect of blast furnace ironmaking equipment provided by the invention is: blast furnace ironmaking equipment provided by the invention, utilizes
The bottom plate of internal layer furnace body, outer layer furnace body and lower section encloses the furnace chamber for ironmaking, reaches two inside and outside the furnace chamber of annular
Air-supply assembly is respectively set to improve the effect of air supply efficiency in side, avoid traditional blast furnace internal diameter it is excessive caused by air-supply it is ineffective
Problem, while being arranged on the inside of internal layer lower portion of furnace body and be set to the air-supply assembly of outer layer lower portion of furnace body periphery can be from annular
Furnace chamber two sides effectively blown to the furnace chamber at middle part, improve ironmaking efficiency, avoid because in furnace blow diameter it is excessive
It causes that ineffective problem of blowing at center is reduced air-supply and required, reduces production cost.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is schematic diagram of main cross-sectional structure of blast furnace ironmaking equipment provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of main cross-sectional structure for the outer layer furnace body that Fig. 1 of the embodiment of the present invention is provided；
Fig. 3 is the schematic cross-sectional view of A-A in Fig. 2 of the embodiment of the present invention；
Fig. 4 is the schematic cross-sectional view of B-B in Fig. 1 of the embodiment of the present invention；
Wherein, each appended drawing reference in figure:
100- internal layer furnace body；200- outer layer furnace body；210- slag notch；220- tapping hole；300- air-supply assembly；310- first
Air supply tube；The second air supply tube of 320-；400- bottom plate；500- refractory components；510- refractory brick；520- groove；530- cooling tube.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1 to Fig. 4, now blast furnace ironmaking equipment provided by the invention is illustrated.Blast furnace ironmaking equipment,
Including internal layer furnace body 100, it is sheathed on 100 periphery of internal layer furnace body and for enclosing the furnace chamber for ironmaking with internal layer furnace body 100
Outer layer furnace body 200, the bottom plate 400 for connecting 200 lower end of internal layer furnace body 100 and outer layer furnace body and several be respectively set
In 100 lower part of internal layer furnace body and 200 lower part of outer layer furnace body and to the air-supply assembly of oven cavity opening 300.It should be noted that working as
Element referred to as " is set to " another element, it can be directly on the other element or indirectly in another element
On.The orientation or positional relationship of the instructions such as term " on ", "lower", "top", "bottom", "inner", "outside" is side based on the figure
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
By the shape that air-supply assembly 300 is respectively set in the inner ring of internal layer furnace body 100 and the outer ring of outer layer furnace body 200
Formula can effectively improve the air quantity of air-supply assembly 300, make tool in the furnace chamber between internal layer furnace body 100 and outer layer furnace body 200
There is more sufficient air output, reduce the requirement of the temperature to air-supply, pressure and air quantity, air-supply air-flow is made to obtain basic change
It is kind, it will be apparent that eliminate the dead stock column at original cupola well center.
Blast furnace ironmaking equipment provided by the invention, compared with prior art, blast furnace ironmaking equipment provided by the invention utilizes
The bottom plate 400 of internal layer furnace body 100, outer layer furnace body 200 and lower section encloses the furnace chamber for ironmaking, reaches the furnace chamber in annular
Inside and outside air-supply assembly 300 is respectively set to improve the effect of air supply efficiency, avoid that traditional blast furnace internal diameter is excessive to be caused
The ineffective problem of air-supply, while 100 lower inside of internal layer furnace body is set and is set to 200 lower, outer perimeter of outer layer furnace body
Air-supply assembly 300 can effectively blow to the furnace chamber at middle part from the furnace chamber two sides of annular, improve ironmaking efficiency, avoid
Because diameter of blowing in furnace it is excessive caused by ineffective problem of blowing at center, reduce air-supply and require, reduce production cost.
As a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention, internal layer furnace body 100 and outer layer furnace body
200 cross section can be set is circular form, while section of various shapes, the energy such as can be set to triangle or rectangle
Realize effective covering of blowing component.
It is interior as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention also referring to Fig. 1 to Fig. 3
Refractory components 500 are respectively equipped on the outer wall of layer furnace body 100 and on the inner wall of outer layer furnace body 200, refractory components 500 include resistance to
Firebrick layer and the cooling tube 530 being respectively arranged inside fire brick layer.In the description of the present invention, " several " are meant that
Two or more, unless otherwise specifically defined.Traditional refractory brick being arranged in inside blast furnace is being smelted iron
Thermal environment in, it is easy to cause to fall off, affect the heat resistance of blast furnace, be unfavorable for smelt iron heat holding, affect smelting
Production efficiency.The form that refractory components 500 are successively arranged from bottom to top using fire brick layer in the present embodiment is realized to furnace chamber
On the outer wall of the internal layer furnace body 100 of two sides and the inner wall of outer layer furnace body 200 is effectively protected.Internal layer furnace body 100 and outer
Layer furnace body 200 is that the furnace shell combination cooling wall of steel plate material is constituted respectively, in cooling wall close to the resistance to of the side of furnace chamber setting
Fiery component can directly be contacted with to raw materials for metallurgy, had good heat and flame resistant effect, be arranged in fire brick layer cold
But pipe can preferably extend the service life of refractory brick, avoid refractory components because falling off caused by high temperature, influence the whole of blast furnace and protect
Warm nature energy.
It is resistance to as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention also referring to Fig. 1 to Fig. 3
Firebrick layer includes the fire resisting that several sequentially arrange along the peripheral direction of internal layer furnace body 100 or the interior circumferential direction of outer layer furnace body 200
Brick 510, cooling tube 530 are along the circumferential direction set to inside refractory brick 510 through several refractory brick 510.Fire brick layer is that have
Circumferencial direction is arranged in multiple refractory brick formation of the periphery of internal layer furnace body 100 or the inner circumferential of outer layer furnace body 200, and correspondence is same
A cooling tube is arranged in the refractory brick of layer, and cooling tube is arranged inside multiple refractory brick, forms cyclic annular, a corresponding fire brick layer
One cooling tube is set, guarantees that each fire brick layer from bottom to top is laid with cooling tube, guarantees good cold-zone cooling effect
Fruit.
It is resistance to as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention also referring to Fig. 1 to Fig. 3
The upper surface of firebrick 510 is equipped with the groove 520 of opening upwards, and cooling tube 530 is annular in shape to be set in groove 520.In order to drop
Cooling tube is nested in groove by the installation difficulty of low cooling tube using the form that groove is arranged on the upper surface of refractory brick
Portion realizes effect easy for installation.Groove on the surface of multiple refractory brick of the same fire brick layer i.e. same layer exists
It is mutually communicated on circumferencial direction, is easy to implement cooling tube and carries out nesting above refractory brick.In addition, groove also can be set resistance to
On the lower surface of firebrick, using the form that Open Side Down, it is able to achieve effective installation of cooling tube.
It is cold as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention also referring to Fig. 1 to Fig. 3
But the section of pipe 530 is rectangle, and cooling tube 530 is copper material component.Cooling tube uses section for the form of rectangle, is convenient for
The surface of refractory brick 510 carries out the processing of groove, while cooling tube can also use the tubing of circular cross-section, corresponding in fire resisting
Brick upper surface setting U-shaped opening or uses the cooling tube in other sections can also be with for accommodating cooling tube.Copper material
Using being because of it with good thermal conductivity, there is better cooling effect under the action of internal cooling water.
It is recessed as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention also referring to Fig. 1 to Fig. 3
The distance of the center of slot 520 to furnace chamber is greater than the center of groove 520 to the distance of internal layer furnace body 100 or outer layer furnace body 200.Groove
Remote apart from furnace chamber side relative distance internal layer furnace body 100 or outer layer furnace body 200, this is kept away to preferably protect cooling tube
That exempts from installation causes refractory brick to fall so that the problem of directly acting on cooling tube, to greatest extent too close to furnace chamber side
Improve the service life of refractory brick and cooling tube.
It is sent also referring to Fig. 1 and Fig. 4 as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention
Wind component 300 includes acclivitous second air supply tube 320 of the first air supply tube 310 that outlet tilts down and outlet, is located at
The first air supply tube 310 and the second air supply tube 320 on internal layer furnace body 100 are spaced setting on the circumferencial direction of internal layer furnace body 100,
The first air supply tube 310 and the second air supply tube 320 on outer layer furnace body 200 are spaced on the circumferencial direction of outer layer furnace body 200
Setting, the first air supply tube 310 on internal layer furnace body 100 and the first air supply tube 310 1 on outer layer furnace body 200 are a pair of
It answers, the second air supply tube 320 on internal layer furnace body 100 and the second air supply tube 320 1 being located on outer layer furnace body 200 are a pair of
It answers.In addition, term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.The setting of air-supply assembly is using the first air supply tube for being equipped with angle of declination and is equipped with updip
The spaced mode of second air supply tube at angle, the first air supply tube are used to enliven cupola well, promote the reaction of raw material and fuel, the
Two air supply tubes promote efficiently separating for slag iron for guaranteeing good reduction.First air supply tube is in internal layer furnace body 100 and outside
It is oppositely arranged on layer furnace body 200, while being blown downwards, furnace chamber inside is carried out effectively actively, including the second air supply tube
It is oppositely arranged on layer furnace body 100 and outer layer furnace body 200, while being blown upwards, the slag iron in furnace chamber is restored, guarantee
Slag iron efficiently separates.
Also referring to Fig. 1 and Fig. 4, as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention, position
It uniformly arranges on the circumferencial direction of internal layer furnace body 100 in the first air supply tube 310 on internal layer furnace body 100；Positioned at outer layer furnace body
The first air supply tube 310 on 200 is uniformly arranged on the circumferencial direction of outer layer furnace body 200；Second on internal layer furnace body 100
Air supply tube 320 is uniformly arranged on the circumferencial direction of internal layer furnace body 100；The second air supply tube 320 on outer layer furnace body 200 exists
It uniformly arranges on the circumferencial direction of outer layer furnace body 200.First air supply tube is in the circumference side of internal layer furnace body 100 or outer layer furnace body 200
It to uniformly being arranged, can effectively guarantee can be effectively blown everywhere on the intracavitary circumferencial direction of annular furnace, promote
Ironmaking reaction is gone on smoothly, while the second air supply tube uses evenly arranged form, also achieves annular furnace chamber various places inside
Slag iron efficiently separates, and ensure that good separating effect.Using in internal layer furnace body 100 or outer layer furnace body 200 in the present embodiment
6 the first air supply tubes 310 of upper setting, while the form of 6 the second air supply tubes 320, can according to specific internal layer furnace body 100 or
The first air supply tube 310 and the second air supply tube 320 of other corresponding numbers is arranged in the size of outer layer furnace body 200, such as in internal layer
The first air supply tube 310 of required number and the form of the second air supply tube 320 is respectively set in furnace body 100 or outer layer furnace body 200.
Also referring to Fig. 1 and Fig. 4, as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention, position
The outer wall setting of internal layer furnace body 100 is protruded from the outlet end of the first air supply tube 310 on internal layer furnace body 100；Positioned at outer layer furnace
The outlet end of the first air supply tube 310 on body 200 protrudes from the inner wall setting of outer layer furnace body 200；On internal layer furnace body 100
The outlet end of second air supply tube 320 is flushed with the outer wall of internal layer furnace body 100；The second air supply tube 320 on outer layer furnace body 200
Outlet end flushed with the inner wall of outer layer furnace body 200.The downward inclination angle of first air supply tube 310 is 15 ° -30 °, the second air supply tube
320 upward inclination angle is 15 ° -20 °.First air supply tube is using the oven cavity side or outer layer furnace body 200 for protruding into internal layer furnace body 100
Oven cavity side form, built-in length 20-25cm both realized good blowing, while in turn avoiding protruding into that value is excessive to be made
The influence of pairs of first air supply tube.Because the outer exterior wall of the first air supply tube is equipped with collet, folder under the hot environment in furnace chamber
Cooling water is provided in set, avoid the first air supply tube be heated it is excessive damage, if the amount of protruding into is excessive be easy collet is burnt
Leakage causes the leakage of internal cooling water, and then influences going on smoothly for ironmaking.The second air supply tube equipped with top rade mainly be
Promotion slag iron separation, thus its outlet end can be set into it is with the inner wall of the outer wall of internal layer furnace body 100 or outer layer furnace body 200 neat
Flat form, the inlet air temperature taken is lower, and certain protective effect can be also formed to refractory material.First air supply tube
310 angle of declination is set as 15 ° -30 °, can guarantee effective blowing to reaction mass in furnace chamber, improves and smelts iron efficiency, and the
The top rade of two air supply tubes 320 is set as 15 ° -20 ° of form, convenient for promoting the reduction of slag iron, realizes the effective of slag iron
Separation.
Also referring to Fig. 1 and Fig. 4, as a kind of specific embodiment of blast furnace ironmaking equipment provided by the invention, outside
The lower part of layer furnace body 200 is equipped with several slag notches 210 along the circumferential direction uniformly arranged and be connected to furnace chamber, outer layer furnace body
200 lower part is additionally provided with several tapping holes 220 along the circumferential direction uniformly arranged and be connected to furnace chamber, the height of tapping hole 220
Degree is lower than the height of slag notch 210.Furnace chamber is the form of annular in corresponding the present embodiment, is in setting slag notch and tapping hole
Using several form is uniformly arranged in the periphery of outer layer furnace body, guarantee the efficiency slagged tap with tapping.Tapping hole, which uses, to be lower than
The setting of slag notch after first carrying out tapping operation, then will because slag knows from experience the top for being suspended in molten iron in ironmaking processes
Slag notch is closed, then is opened tapping hole and carried out tapping operation.
Blast furnace ironmaking equipment provided by the invention encloses use using the bottom plate of internal layer furnace body, outer layer furnace body and lower section
In the furnace chamber of ironmaking, have the function that air-supply assembly is respectively set inside and outside the furnace chamber of annular to improve air supply efficiency,
Avoid traditional blast furnace internal diameter it is excessive caused by blow ineffective problem, while being arranged on the inside of internal layer lower portion of furnace body and being arranged
Air-supply assembly in outer layer lower portion of furnace body periphery can effectively blow to the furnace chamber at middle part from the furnace chamber two sides of annular, mention
High ironmaking efficiency, avoid because diameter of blowing in furnace it is excessive caused by ineffective problem of blowing at center, reduce air-supply and want
It asks, reduces production cost.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. blast furnace ironmaking equipment, it is characterised in that: including internal layer furnace body (100), be sheathed on internal layer furnace body (100) periphery and
For enclosing the outer layer furnace body (200) of the furnace chamber for ironmaking with the internal layer furnace body (100), for connecting the internal layer furnace
The bottom plate (400) of body (100) and the outer layer furnace body (200) lower end and several be respectively arranged at the internal layer furnace body
(100) lower part and outer layer furnace body (200) lower part and to the air-supply assembly of the oven cavity opening (300).
2. blast furnace ironmaking equipment as described in claim 1, it is characterised in that: on the outer wall of the internal layer furnace body (100) and
It is respectively equipped with refractory components (500) on the inner wall of the outer layer furnace body (200), the refractory components (500) include fire brick layer
And it is respectively arranged at the cooling tube (530) inside the fire brick layer.
3. blast furnace ironmaking equipment as claimed in claim 2, it is characterised in that: the fire brick layer is mainly by refractory brick (510)
It assembles to be formed, the cooling tube (530) along the circumferential direction runs through the inside of the refractory brick (510).
4. blast furnace ironmaking equipment as claimed in claim 3, it is characterised in that: the upper surface of the refractory brick (510) is equipped with and opens
The upward groove (520) of mouth, the cooling tube (530) is annular in shape to be set in the groove (520).
5. blast furnace ironmaking equipment as described in claim 3 or 4, it is characterised in that: the section of the cooling tube (530) is square
Shape, and the cooling tube (530) is copper material component.
6. blast furnace ironmaking equipment as claimed in claim 4, it is characterised in that: the center of the groove (520) to the furnace chamber
Distance be greater than the center of the groove (520) to the internal layer furnace body (100) or the distance of the outer layer furnace body (200).
7. blast furnace ironmaking equipment as described in claim 1, it is characterised in that: the air-supply assembly (300) includes that outlet is downward
Acclivitous second air supply tube (320) of inclined first air supply tube (310) and outlet, is located at the internal layer furnace body (100)
On first air supply tube (310) and second air supply tube (320) on the circumferencial direction of the internal layer furnace body (100) between
Every setting, first air supply tube (310) and second air supply tube (320) on the outer layer furnace body (200) are in institute
It states and is spaced setting on the circumferencial direction of outer layer furnace body (200), first air supply tube being located on the internal layer furnace body (100)
(310) it is corresponded with first air supply tube (310) being located on the outer layer furnace body (200), is located at the internal layer furnace body
(100) second air supply tube (320) on and second air supply tube (320) one on the outer layer furnace body (200)
One is corresponding.
8. blast furnace ironmaking equipment as claimed in claim 7, it is characterised in that: be located at described on the internal layer furnace body (100)
First air supply tube (310) is uniformly arranged on the circumferencial direction of the internal layer furnace body (100)；Positioned at the outer layer furnace body (200)
On first air supply tube (310) uniformly arrange on the circumferencial direction of the outer layer furnace body (200)；Positioned at the internal layer furnace
Second air supply tube (320) on body (100) is uniformly arranged on the circumferencial direction of the internal layer furnace body (100)；Positioned at institute
Second air supply tube (320) stated on outer layer furnace body (200) is uniformly arranged on the circumferencial direction of the outer layer furnace body (200)
Cloth.
9. blast furnace ironmaking equipment as claimed in claim 7 or 8, it is characterised in that: the institute being located on the internal layer furnace body (100)
The outlet end for stating the first air supply tube (310) protrudes from the outer wall setting of the internal layer furnace body (100)；Positioned at the outer layer furnace body
(200) outlet end of first air supply tube (310) on protrudes from the inner wall setting of the outer layer furnace body (200)；Positioned at institute
The outlet end for stating second air supply tube (320) on internal layer furnace body (100) is flushed with the outer wall of the internal layer furnace body (100)；
The outlet end of second air supply tube (320) on the outer layer furnace body (200) and the inner wall of the outer layer furnace body (200)
It flushes.
10. blast furnace ironmaking equipment as described in claim 1, it is characterised in that: the outer layer furnace body (200) if lower part be equipped with
The dry slag notch (210) along the circumferential direction uniformly arranged and be connected to the furnace chamber, the lower part of the outer layer furnace body (200) is also
The tapping hole (220) along the circumferential direction uniformly arranged equipped with several and be connected to the furnace chamber, the height of the tapping hole (220)
Degree is lower than the height of the slag notch (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548167.6A CN109355449B (en) | 2018-12-18 | 2018-12-18 | Blast furnace ironmaking equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548167.6A CN109355449B (en) | 2018-12-18 | 2018-12-18 | Blast furnace ironmaking equipment |
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| Publication Number | Publication Date |
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| CN109355449A true CN109355449A (en) | 2019-02-19 |
| CN109355449B CN109355449B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811548167.6A Active CN109355449B (en) | 2018-12-18 | 2018-12-18 | Blast furnace ironmaking equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2052928A (en) * | 1935-12-20 | 1936-09-01 | Garnett M Harris | Blast furnace hearth and bosh |
| GB744654A (en) * | 1952-04-08 | 1956-02-08 | Ko We Niederschachtofen G M B | Improvements in or relating to low shaft furnaces |
| US4403951A (en) * | 1981-06-27 | 1983-09-13 | Ulrich Beckenbach | Shaft furnace for burning or firing and sintering material in lump form or pellet form and with an internal burner |
| CN2348263Y (en) * | 1998-10-19 | 1999-11-10 | 梁占明 | Ring briquet-fired shaft stove |
| CN2538806Y (en) * | 2001-12-28 | 2003-03-05 | 卢云光 | Double-blasting fast-smelting blast furnace |
| CN202204270U (en) * | 2011-06-10 | 2012-04-25 | 河南省德耀机械制造有限公司 | Sleeve type continuous calcining shaft kiln |
-
2018
- 2018-12-18 CN CN201811548167.6A patent/CN109355449B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2052928A (en) * | 1935-12-20 | 1936-09-01 | Garnett M Harris | Blast furnace hearth and bosh |
| GB744654A (en) * | 1952-04-08 | 1956-02-08 | Ko We Niederschachtofen G M B | Improvements in or relating to low shaft furnaces |
| US4403951A (en) * | 1981-06-27 | 1983-09-13 | Ulrich Beckenbach | Shaft furnace for burning or firing and sintering material in lump form or pellet form and with an internal burner |
| CN2348263Y (en) * | 1998-10-19 | 1999-11-10 | 梁占明 | Ring briquet-fired shaft stove |
| CN2538806Y (en) * | 2001-12-28 | 2003-03-05 | 卢云光 | Double-blasting fast-smelting blast furnace |
| CN202204270U (en) * | 2011-06-10 | 2012-04-25 | 河南省德耀机械制造有限公司 | Sleeve type continuous calcining shaft kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109355449B (en) | 2020-10-09 |
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