CN109971903A - A kind of metallurgy iron-smelting furnace preheating device - Google Patents
A kind of metallurgy iron-smelting furnace preheating device Download PDFInfo
- Publication number
- CN109971903A CN109971903A CN201910206517.9A CN201910206517A CN109971903A CN 109971903 A CN109971903 A CN 109971903A CN 201910206517 A CN201910206517 A CN 201910206517A CN 109971903 A CN109971903 A CN 109971903A
- Authority
- CN
- China
- Prior art keywords
- smelting furnace
- iron
- preheating cabinet
- inner cavity
- fumer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003723 Smelting Methods 0.000 title claims abstract description 53
- 238000005272 metallurgy Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000011094 fiberboard Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012802 pre-warming Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
-
- C21B2100/04—
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of metallurgy iron-smelting furnace preheating devices, including iron-smelting furnace, the positive bottom of iron-smelting furnace is fixedly installed with preheating cabinet, and the escape pipe of iron-smelting furnace through preheating cabinet and extends in the inner cavity of preheating cabinet, it is provided through air-exhausting duct at the top of preheating cabinet, and is provided with control valve on air-exhausting duct, the side of preheating cabinet is provided through air inlet pipe, and the inside of preheating cabinet is bolted and is equipped with inlet box, one end of air inlet pipe through inlet box and extends in the inner cavity of inlet box.The present invention passes through setting preheating cabinet, and by the way that the inner cavity of preheating cabinet is connected to the inner cavity of iron-smelting furnace, it is provided with air-exhausting duct and pneumatic control valve simultaneously, to make the high temperature hot gas in iron-smelting furnace be emitted into the inside of preheating cabinet, and by inlet box, the cooperation of heating pipe fumer and exhaust pipe carries out preheating heating to the air in iron-smelting furnace is entered by preheating cabinet, to reach UTILIZATION OF VESIDUAL HEAT IN, energy-saving and environment-friendly effect.
Description
Technical field
The present invention relates to metallurgical technology equipment technical field, specially a kind of metallurgy iron-smelting furnace preheating device.
Background technique
Iron-smelting furnace is one of metallurgical equipment, iron-smelting furnace be it is a kind of by metallic iron from iron-bearing mineral (the predominantly oxygen of iron
Compound) in the equipment that extract, iron-smelting furnace at work, needs to be aerated, and enters ironmaking to reduce outside air
After in furnace, minor impact is caused to the temperature in furnace, needs to heat the air for entering iron-smelting furnace.
A hot wind room can be all arranged in existing iron-smelting furnace, and hot wind room is a closed device, and hot wind is inside distributed with
It manages, the air being passed through in hot air pipe in iron-smelting furnace, is the high-temp waste gas being discharged out of iron-smelting furnace, when air is in warm outside hot air pipe
In hot air pipe in wind room when flowing, the heat that flies up being discharged in iron-smelting furnace is absorbed, and temperature increases, but existing hot wind room
It is interior, it is low into the air heat transference efficiency in iron-smelting furnace, cause pre-heat effect poor, influences pre- thermal effect when air enters iron-smelting furnace
Fruit causes to be affected to the temperature in furnace.
Summary of the invention
The purpose of the present invention is to provide a kind of metallurgy iron-smelting furnace preheating devices, have rapidly pre-warming, while energy-saving ring
The advantages of guarantor, solves in the existing hot wind room mentioned in background technique, low into the air heat transference efficiency in iron-smelting furnace,
Cause pre-heat effect poor, influences pre-heat effect when air enters iron-smelting furnace, lead to the problem of being affected to the temperature in furnace.
To achieve the above object, the invention provides the following technical scheme: it is a kind of metallurgy use iron-smelting furnace preheating device, including refining
Iron furnace, the positive bottom of iron-smelting furnace are fixedly installed with preheating cabinet, and the escape pipe of the iron-smelting furnace through preheating cabinet and extends
Into the inner cavity of preheating cabinet, air-exhausting duct is provided through at the top of the preheating cabinet, and control valve is provided on air-exhausting duct.
The side of the preheating cabinet is provided through air inlet pipe, and the inside of preheating cabinet is bolted and is equipped with air inlet
Case, one end of the air inlet pipe is through inlet box and extends in the inner cavity of inlet box, the inlet box far from air inlet pipe one
End is fixedly installed with the heating pipe communicated with air inlet box cavity, and the inside of the preheating cabinet is fixedly installed with fumer, described
The top and bottom of fumer are fixedly connected at the top and bottom of preheating chamber interior wall respectively, and heating pipe is far from inlet box
One end is run through the side of fumer and extended in the inner cavity of fumer to be connected to the inner cavity of fumer, the side of the fumer
Be inlaid with heat-conducting plate, and the side of heat-conducting plate through fumer and extends the outside of child's fumer, the heat-conducting plate it is another
Side is fixedly connected with one end of heat conducting bar, and the other end of the heat conducting bar extends in the inner cavity of heating pipe, and in the shape of a spiral
It is arranged in the inner cavity of heating pipe, the front of the fumer is provided through exhaust pipe, and one end of the exhaust pipe is run through
Preheating cabinet simultaneously extends in the inner cavity of iron-smelting furnace.
Preferably, thermal insulation layer is fitted on the inner wall of the preheating cabinet, the thermal insulation layer is by nanometer micropore thermal insulation board, ceramics
Fiberboard is bonded and insulating moulding coating has been smeared on surface.
Preferably, the side that the heat-conducting plate extends exhaust box cavity offers the groove of roughness, and groove
Slot bottom be provided with spherical convex block.
Preferably, the heat-conducting plate, which is located on the side of exhaust box cavity, is inlaid with copper sheet.
Preferably, the side of the inlet box is provided through connecting tube, and the heating pipe passes through connecting tube and air inlet
The inner cavity of case is connected to, and connecting tube is internally provided with fixed plate, through-hole is offered in the fixed plate, and the quantity of through-hole is not
It circularizes and is arranged in fixed plate less than 3.
Preferably, the quantity of the heating pipe is four, and four heating pipes are successively spaced substantially equidistant from top to bottom.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the present invention is arranged simultaneously by setting preheating cabinet, and by the way that the inner cavity of preheating cabinet to be connected to the inner cavity of iron-smelting furnace
Air-exhausting duct and pneumatic control valve, so that the high temperature hot gas in iron-smelting furnace be made to be emitted into the inside of preheating cabinet, and pass through air inlet
Case, the cooperation of heating pipe fumer and exhaust pipe carry out preheating heating to the air in iron-smelting furnace is entered by preheating cabinet,
To reach UTILIZATION OF VESIDUAL HEAT IN, energy-saving and environment-friendly effect.
2, the present invention is entered in preheating cabinet by the way that fumer, heat-conducting plate and heating pipe, the exhaust gas in iron-smelting furnace is arranged
Afterwards, the temperature in preheating cabinet can be made to increase, and after exhaust gas is contacted with heat-conducting plate, the temperature of heat-conducting plate can be made to increase, by
Groove is opened up on heat-conducting plate and convex block is set, so that the contact area with exhaust gas is increased, to improve the thermally conductive of heat-conducting plate
Efficiency, and by the way that heat conducting bar and copper sheet is arranged, when passing through heating pipe in air, can sufficiently it be connect with spiral helicine heat conducting bar
Touching, and when air enters in the inner cavity of fumer, meeting be contacted with copper sheet, to increase the efficiency of air heating, be avoided
Occur, air preheat is not enough affected to the temperature in iron-smelting furnace.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the sectional view of preheating cabinet of the present invention；
Fig. 3 is the sectional view of fumer of the present invention and heating pipe；
Fig. 4 is the sectional view of inlet box of the present invention.
In figure: 1 iron-smelting furnace, 2 preheating cabinets, 3 air-exhausting ducts, 4 pneumatic control valves, 5 air inlet pipe, 6 inlet boxs, 7 heating pipes, 8
Fumer, 9 heat-conducting plates, 10 heat conducting bars, 11 exhaust pipes, 12 thermal insulation layers, 13 grooves, 14 convex blocks, 15 copper sheets, 16 connecting tubes, 17 are consolidated
Fixed board, 18 through-holes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4, a kind of energy-saving type iron-smelting furnace preheating device, including iron-smelting furnace 1 are please referred to, the positive bottom of iron-smelting furnace 1 is solid
Dingan County is equipped with preheating cabinet 2, and thermal insulation layer 12 is fitted on the inner wall of preheating cabinet 2, and for thermal insulation layer 12 by nanometer micropore thermal insulation board, ceramics are fine
Dimension plate is bonded and insulating moulding coating has been smeared on surface, and the escape pipe of iron-smelting furnace 1 through preheating cabinet 2 and extends to preheating cabinet
In 2 inner cavity, the top of preheating cabinet 2 is provided through air-exhausting duct 3, and pneumatic control valve 4 is provided on air-exhausting duct 3, by setting
Pneumatic control valve 4 is set, to control the air pressure size inside preheating cabinet 2, exhaust gas is avoided to be lost too fast cause inside preheating cabinet 2
Temperature is not high, while being also avoided that the air pressure inside preheating cabinet 2 is excessively high, causes to have an accident, and produces when smelting iron in iron-smelting furnace 1
Raw exhaust gas is entered the inside of preheating cabinet 2 by air-exhausting duct 3, after exhaust gas enters the inside of preheating cabinet 2, is contained in exhaust gas
A large amount of heat will be preheated case 2 and preheated using to air, to reach energy-saving and environment-friendly effect, and
The exhaust gas in preheating cabinet 2 is discharged by setting air-exhausting duct 3.
The side of preheating cabinet 2 is provided through air inlet pipe 5, by the way that air inlet pipe 5 is arranged, to admit air into preheating cabinet
2 inside, and the inside of preheating cabinet 2 is bolted and is equipped with inlet box 6, one end of air inlet pipe 5 through inlet box 6 and is prolonged
In the inner cavity for extending to inlet box 6, inlet box 6 is fixedly installed with the heating communicated with 6 inner cavity of inlet box far from one end of air inlet pipe 5
Pipeline 7, the quantity of heating pipe 7 is four, after air is entered in inlet box 6 by air inlet pipe 5, can be dispersed by inlet box 6
It is heated by four heating pipes 7, the particular number of heating pipe 7 can be set according to demand, to make sky
Gas dispersed-heated, pre-heat effect is more preferable, and preheating is more efficient, and four heating pipes 7 are successively spaced substantially equidistant from top to bottom, into
The side of gas tank 6 is provided through connecting tube 16, and heating pipe is connected to by connecting tube 16 with the inner cavity of inlet box 6, and is connected
Pipe 16 is internally provided with fixed plate 17, through-hole 18 is offered in fixed plate 17, and the quantity of through-hole 18 is no less than 3 and circularizes
It is arranged in fixed plate 17, by the way that connecting tube 16 is arranged, so that heating pipe 7 be made to be connected to inlet box 6, when connection, general
Heating pipe 7 is inserted into the inside of connecting tube 16, and passes through encapsulation process, thus complete to connect, due to being provided with fixed plate 17,
And through-hole 18 is opened up in fixed plate 17, to increase the air pressure of air, admit air into it is more chaotic when heating pipe 7, from
And air draught is heated more sufficiently, the inside of preheating cabinet 2 is fixedly installed with fumer 8, the top of fumer 8 and
Bottom is fixedly connected at the top and bottom of 2 inner wall of preheating cabinet respectively, and the one end of heating pipe 7 far from inlet box 6 is through row
The side of gas tank 8 and extending in the inner cavity of fumer 8 is connected to the inner cavity of fumer 8, and the side of fumer 8 is inlaid with thermally conductive
Plate 9, heat-conducting plate 9, which is located on the side of 8 inner cavity of fumer, is inlaid with copper sheet 15, and fumer 8 casees is run through simultaneously in the side of heat-conducting plate 9
Extending the outside of child's fumer 8, the side that heat-conducting plate 9 extends 8 inner cavity of fumer offers the groove 13 of roughness,
And the slot bottom of groove 13 is provided with spherical convex block 14, the other side of heat-conducting plate 9 is fixedly connected with one end of heat conducting bar 10, thermally conductive
The other end of bar 10 extends in the inner cavity of heating pipe 7, and is arranged in the inner cavity of heating pipe 7 in the shape of a spiral, works as exhaust gas
After being discharged into the inner cavity of preheating cabinet 2, increase the temperature in preheating cabinet 2, heat-conducting plate 9 is metal production, and heat transference efficiency is strong, and
And due to being provided with groove 13 and convex block 14, the contact area of heat-conducting plate 9 Yu exhaust gas is increased, to increase heat-conducting plate 9
Heat transfer efficiency, after exhaust gas and heat-conducting plate 9 contact, heat-conducting plate 9 by the heat transfer in exhaust gas to copper sheet 15 and heat conducting bar 10, from
And the temperature of copper sheet 15 and heat conducting bar 10 is increased, when air passes through heating pipe 7, can be carried out by spiral helicine heat conducting bar 10
Heating, and can be by reheating after air enters in fumer 8, to increase the effect of preheating, fumer 8 is just
Face is provided through exhaust pipe 11, and one end of exhaust pipe 11 through preheating cabinet 2 and extends in the inner cavity of iron-smelting furnace 1, into row
Air in gas tank 8 can enter the inside of iron-smelting furnace 1 by exhaust pipe 11.
In summary: the present invention is by setting preheating cabinet 2, and by by the inner cavity of the inner cavity of preheating cabinet 2 and iron-smelting furnace 1
Connection, while it being provided with air-exhausting duct 3 and pneumatic control valve 4, so that the high temperature hot gas in iron-smelting furnace 1 be made to be emitted into preheating cabinet 2
Inside, and by inlet box 6, the cooperation of heating pipe 7 fumer 8 and exhaust pipe 11 enters ironmaking to by preheating cabinet 2
Air in furnace 1 carries out preheating heating, thus reached UTILIZATION OF VESIDUAL HEAT IN, energy-saving and environment-friendly effect.
Also, the present invention enters pre- by the way that fumer 8, heat-conducting plate 9 and heating pipe 7, the exhaust gas in iron-smelting furnace 1 is arranged
After in hot tank 2, the temperature in preheating cabinet 2 can be made to increase, and after exhaust gas is contacted with heat-conducting plate 9, the temperature liter of heat-conducting plate 9 can be made
Height, by opening up groove 13 on heat-conducting plate 9 and convex block 14 being arranged, so that the contact area with exhaust gas is increased, to mention
The heat transfer efficiency of high thermal conductivity plate 9, and by the way that heat conducting bar 10 and copper sheet 15 is arranged, when passing through heating pipe 7 in air, meeting and spiral shell
The heat conducting bar 10 of rotation shape comes into full contact with, and when air enters in the inner cavity of fumer 8, meeting be contacted with copper sheet 15, to increase
The efficiency for having added air to heat, avoids the occurrence of, air preheat is not enough affected to the temperature in iron-smelting furnace 1.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of metallurgy iron-smelting furnace preheating device, including iron-smelting furnace (1), it is characterised in that: the positive bottom of the iron-smelting furnace (1)
Portion is fixedly installed with preheating cabinet (2), and the escape pipe of the iron-smelting furnace (1) through preheating cabinet (2) and extends to the interior of preheating cabinet (2)
In chamber, it is provided through air-exhausting duct (3) at the top of the preheating cabinet (2), and pneumatic control valve (4) are provided on air-exhausting duct (3)；
The side of the preheating cabinet (2) is provided through air inlet pipe (5), and the inside of preheating cabinet (2) is bolted installation
Have inlet box (6), one end of the air inlet pipe (5) is through inlet box (6) and extends in the inner cavity of inlet box (6), it is described into
Gas tank (6) is fixedly installed with the heating pipe (7) communicated with inlet box (6) inner cavity, the preheating far from the one end of air inlet pipe (5)
The inside of case (2) is fixedly installed with fumer (8), the top and bottom of the fumer (8) respectively with preheating cabinet (2) inner wall
Top and bottom are fixedly connected, and side and extension of the one end of heating pipe (7) far from inlet box (6) through fumer (8)
It being connected into the inner cavity of fumer (8) with the inner cavity of fumer (8), the side of the fumer (8) is inlaid with heat-conducting plate (9),
And the side of heat-conducting plate (9) runs through fumer (8) and extends the outside of child's fumer (8), the other side of the heat-conducting plate (9)
It being fixedly connected with one end of heat conducting bar (10), the other end of the heat conducting bar (10) extends in the inner cavity of heating pipe (7), and
It is arranged in the inner cavity of heating pipe (7) in the shape of a spiral, the front of the fumer (8) is provided through exhaust pipe (11), institute
One end of exhaust pipe (11) is stated through preheating cabinet (2) and is extended in the inner cavity of iron-smelting furnace (1)；
It is fitted with thermal insulation layer (12) on the inner wall of the preheating cabinet (2), the thermal insulation layer (12) is by nanometer micropore thermal insulation board, ceramics
Fiberboard is bonded and insulating moulding coating has been smeared on surface；
The side that the heat-conducting plate (9) extends fumer (8) inner cavity offers the groove (13) of roughness, and groove
(13) slot bottom is provided with spherical convex block (14).
2. a kind of metallurgy iron-smelting furnace preheating device according to claim 1, it is characterised in that: heat-conducting plate (9) position
In being inlaid with copper sheet (15) on the side of fumer (8) inner cavity.
3. a kind of metallurgy iron-smelting furnace preheating device according to claim 1, it is characterised in that: the inlet box (6)
Side is provided through connecting tube (16), and the heating pipe (7) is connected to by connecting tube (16) with the inner cavity of inlet box (6),
And connecting tube (16) is internally provided with fixed plate (17), is offered through-hole (18) on the fixed plate (17), and through-hole (18)
Quantity be no less than 3 and circularize and be arranged on fixed plate (17).
4. a kind of metallurgy iron-smelting furnace preheating device according to claim 1, it is characterised in that: the heating pipe (7)
Quantity be four, and four heating pipes (7) are successively spaced substantially equidistant from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910206517.9A CN109971903B (en) | 2017-11-02 | 2017-11-02 | Preheating device of metallurgical iron-making furnace |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064547.8A CN107816897B (en) | 2017-11-02 | 2017-11-02 | A kind of energy-saving type iron-smelting furnace preheating device |
| CN201910206517.9A CN109971903B (en) | 2017-11-02 | 2017-11-02 | Preheating device of metallurgical iron-making furnace |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711064547.8A Division CN107816897B (en) | 2017-11-02 | 2017-11-02 | A kind of energy-saving type iron-smelting furnace preheating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109971903A true CN109971903A (en) | 2019-07-05 |
| CN109971903B CN109971903B (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711064547.8A Active CN107816897B (en) | 2017-11-02 | 2017-11-02 | A kind of energy-saving type iron-smelting furnace preheating device |
| CN201910206518.3A Active CN109971904B (en) | 2017-11-02 | 2017-11-02 | Preheating device of iron-smelting furnace for metallurgy |
| CN201910206517.9A Active CN109971903B (en) | 2017-11-02 | 2017-11-02 | Preheating device of metallurgical iron-making furnace |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711064547.8A Active CN107816897B (en) | 2017-11-02 | 2017-11-02 | A kind of energy-saving type iron-smelting furnace preheating device |
| CN201910206518.3A Active CN109971904B (en) | 2017-11-02 | 2017-11-02 | Preheating device of iron-smelting furnace for metallurgy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114540609B (en) * | 2022-01-14 | 2024-05-03 | 湖州中合鑫顺特钢股份有限公司 | Inclined bottom heating process based on heat recovery |
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| CN203382777U (en) * | 2013-06-20 | 2014-01-08 | 马亚典 | Hot-blast furnace |
| CN203656965U (en) * | 2013-11-25 | 2014-06-18 | 洛阳安拓窑炉环保有限公司 | Air preheating device of kiln |
| CN106399612A (en) * | 2016-11-07 | 2017-02-15 | 上海铁戈炉业有限公司 | Preheating energy saving system and preheating method |
| CN106765285A (en) * | 2016-12-20 | 2017-05-31 | 靖江博鑫柯曼燃烧器制造有限公司 | A kind of combustion air heat exchanger with space spiral type spiral preheating channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109971903B (en) | 2020-10-30 |
| CN109971904A (en) | 2019-07-05 |
| CN107816897B (en) | 2019-04-23 |
| CN109971904B (en) | 2020-10-16 |
| CN107816897A (en) | 2018-03-20 |
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