CN106052377B - Gas-fired cupola - Google Patents
Gas-fired cupola Download PDFInfo
- Publication number
- CN106052377B CN106052377B CN201610602918.2A CN201610602918A CN106052377B CN 106052377 B CN106052377 B CN 106052377B CN 201610602918 A CN201610602918 A CN 201610602918A CN 106052377 B CN106052377 B CN 106052377B
- Authority
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- Prior art keywords
- burner hearth
- gas pipeline
- gas
- pipe line
- air
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003546 flue gas Substances 0.000 claims abstract description 35
- 239000002737 fuel gas Substances 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 238000003723 Smelting Methods 0.000 claims abstract description 25
- 239000000567 combustion gas Substances 0.000 claims abstract description 15
- 238000005338 heat storage Methods 0.000 claims description 25
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 7
- 230000008018 melting Effects 0.000 abstract description 7
- 238000005275 alloying Methods 0.000 abstract description 5
- 238000007499 fusion processing Methods 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009841 combustion method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001047 Hard ferrite Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
-
- 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
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
-
- 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
- F27D2017/007—Systems for reclaiming waste heat including regenerators
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
- F27D2099/0053—Burner fed with preheated gases
- F27D2099/0056—Oxidant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to Metal Melting technical fields, provide a kind of gas-fired cupola, including burner hearth, fuel gas pipeline, air pipe line, igniter and flue gas pipeline, are placed in burner hearth and wait for smelting metal, wait for that smelting metal is deposited in the bottom position of burner hearth naturally；Fuel gas pipeline is connected to the lower part of the side wall of burner hearth；The mixed airflow direction for the combustion gas formation that air pipe line makes the air being passed through in burner hearth and is passed into burner hearth waits for that smelting metal sprays, and is lighted by igniter；Flue gas pipeline is used to discharge the flue gas in burner hearth.During melting, wait for that smelting metal can be wrapped up by the flame close to internal flame region, and the internal flame region of flame is the region that completely burned does not occur for combustion gas, if reproducibility is presented, and uniformity of temperature profile, it can effectively reduce the problems such as alloying element scaling loss (oxidation) is serious in fusion process.
Description
Technical field
The present invention relates to Metal Melting technical fields, specifically provide a kind of gas-fired cupola.
Background technology
To gas-fired cupola combustion method, there has been no complete theoretical and approved product, especially Cupolas to burn at present
Tissue, molten iron temperature, the control of chemical composition, the oxidization burning loss of element and burner the great key such as structure design ask
Topic there are no ripe report, and the gas-fired cupola that also there are no the sizing of technology maturation is applied in actual production.With high temperature
The continuous development of air burning technology, in recent years, a part of gas-fired cupola is by arranging regenerative chamber, with heat storage type combustion side
Formula reduces exhaust gas exhaust temperature to a certain extent, but there is heat storages easily to block, and furnace pressure, which is not easy to adjust, etc. asks
Topic.The shortcomings that heat accumulating type rotation commutation heater is that inleakage is big, and higher inleakage causes the reduction of pre-heater inlet wind pressure, in advance
Coefficient of excess air after heat increases, and pressure fluctuations amplitude is big, and rated load is not achieved in heating equipment.
Existing gas-fired cupola combustion method, since burning tissues are unreasonable, smog discharge temperature is high, heat utilization efficiency
Low, energy waste is serious, and bonded hard ferrite magnet is relatively low, and highest only reaches 1380 DEG C.Therefore there is an urgent need to develop a kind of effectively to solve
The certainly combustion method of the gas-fired cupola of the above problem.The difficult point of this technology is the air after rotation commutation heater preheating
In participating in combustion process, pressure oscillation is big, and flow is not easy to control, i.e., burning tissues are unreasonable, cause combustion instability.
Invention content
(1) technical problems to be solved
The object of the present invention is to provide a kind of gas-fired cupolas that can effectively reduce alloying element scaling loss in fusion process.
(2) technical solution
To achieve the above object, the present invention provides a kind of gas-fired cupolas, which is characterized in that including：
Burner hearth is placed in the burner hearth and waits for smelting metal；
Fuel gas pipeline, the fuel gas pipeline are connected to the lower part of the side wall of the burner hearth, for spraying into combustion gas obliquely
Into the burner hearth；
Air pipe line, the air pipe line are connected to the burner hearth, for being passed through air, and the sky into the burner hearth
The tie point of air pipe and the burner hearth is located at the top of the fuel gas pipeline and the tie point of the burner hearth, and stove is passed through for making
The mixed airflow of air and the combustion gas formation being passed into burner hearth in thorax waits for smelting metal described in；
Igniter, the igniter are arranged in the inside of the burner hearth, the combustion gas and air for that will be passed through in burner hearth
Mixed airflow is lighted；And
Flue gas pipeline, the flue gas pipeline are connected to the burner hearth, for discharging the flue gas in the burner hearth.
Preferably, the fuel gas pipeline is two groups, and fuel gas pipeline described in two groups is symmetrically connected in the both sides of the burner hearth；
The air pipe line is two groups be correspondingly arranged with fuel gas pipeline described in two groups.
Preferably, the jet port of the fuel gas pipeline is from the horizontal by °~° angle.
Preferably, the jet port of the air pipe line is horizontally disposed.
Preferably, the flue gas pipeline is connected to the top of the burner hearth.
Preferably, further include heat exchanger, the heat exchanger is used to make in the air and fuel gas pipeline in the air pipe line
Flue gas occur heat exchange.
Preferably, the accumulating type heat exchanger of revolution includes heat exchanging chamber, heat storage, separator and driving device；
The heat storage, which is placed in the heat exchanging chamber and is driven by the driving device, to be rotated；
The rotary shaft that the separator is parallel to the heat exchanging body is arranged and is separated into the inner space of the heat exchanging chamber
First heat transfer space and the second heat transfer space, first heat transfer space is for making the air in the air pipe line pass through, institute
The second heat transfer space is stated for making the flue gas in the flue gas pipeline pass through.
Preferably, the driving device drives the heat storage uniform rotation.
Preferably, the air pipe line is equipped with throttling set.
Preferably, the heat storage is honeycomb ceramic heat accumulator.
(3) advantageous effect
A kind of gas-fired cupola provided by the invention, including burner hearth, fuel gas pipeline, air pipe line, igniter and flue gas
Pipeline is placed in burner hearth and waits for smelting metal, waits for that smelting metal is deposited in the bottom position of burner hearth naturally；Fuel gas pipeline and burner hearth
Side wall lower part connection；Air pipe line makes the mixed airflow that the air being passed through in burner hearth is formed with the combustion gas being passed into burner hearth
Direction waits for that smelting metal sprays, and is lighted by igniter；Flue gas pipeline is used to discharge the flue gas in burner hearth.In the process of melting
In, wait for that smelting metal can be wrapped up close to the flame in internal flame region, and to be combustion gas do not occur to fire completely in the internal flame region of flame
The region of burning, if reproducibility is presented, and uniformity of temperature profile, it is tight can effectively to reduce alloying element scaling loss (oxidation) in fusion process
The problems such as weight.
Description of the drawings
Fig. 1 is a kind of schematic diagram of gas-fired cupola of the embodiment of the present invention.
Reference numeral：
1, burner hearth；2, heat exchanger；21, the second heat transfer space；22, separator；23, the first heat transfer space；3, flue gas pipeline；
4, air pipe line；5, fuel gas pipeline；6, throttling set.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connection " should be done
It broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected,
It can also be indirectly connected through an intermediary.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
As shown in Figure 1, a kind of gas-fired cupola provided by the invention, including burner hearth 1, fuel gas pipeline 5, air pipe line 4, point
Firearm and flue gas pipeline 3 are placed in burner hearth 1 and wait for smelting metal, wait for that smelting metal is deposited in the bottom position of burner hearth 1 naturally
It sets；Fuel gas pipeline 5 is connected to the lower part of the side wall of burner hearth 1, and the jet port of fuel gas pipeline 5 tilts obliquely, with horizontal direction
At 15 °~30 ° angles, for combustion gas to be injected to obliquely in burner hearth 1；Air pipe line 4 is connected to burner hearth 1, is used for burner hearth 1
It is inside passed through air, and the tie point of air pipe line 4 and burner hearth 1 is located at the top of fuel gas pipeline 5 and the tie point of burner hearth 1, air
The jet port of pipeline 4 is horizontally disposed, pushes the fuel gas flow sprayed towards oblique upper by the cross-ventilation being passed through, makes to be passed through
The mixed airflow direction of air and the combustion gas formation being passed into burner hearth 1 in burner hearth 1 waits for that smelting metal sprays；Igniter is arranged
In burner hearth 1, for lighting the mixed gas of the combustion gas being passed through in burner hearth 1 and air, to the flame spray for making burning be formed
To smelting metal is waited for, to wait for that the thawing of smelting metal provides heat；Flue gas pipeline 3 is connected to burner hearth 1, for discharging in burner hearth 1
Flue gas, the preferred connection of the fuel gas pipeline 5 makes flue gas be formed by ascending air and is easier to be discharged at the top of burner hearth 1.
During melting, since the penetrating point of the mixed gas of the air and combustion gas that are passed through is located at the lower part of burner hearth 1,
And the injection direction of the mixed airflow, so after the mixed airflow is ignited, waits for that smelting metal can quilt towards smelting metal is waited for
Flame close to internal flame region is wrapped up, and the internal flame region of flame is the region that completely burned does not occur for combustion gas, if presenting also
Originality, and uniformity of temperature profile can effectively reduce the problems such as alloying element scaling loss (oxidation) is serious in fusion process.
Fuel gas pipeline 5 is preferably set to two groups, and two groups of fuel gas pipelines 5 are symmetrically connected in the both sides of burner hearth 1；Air pipe line 4
Also two groups are set as, two groups of air pipe lines 4 are correspondingly arranged with two groups of fuel gas pipelines 5 respectively.During melting, smelting metal is waited for
Both sides surrounded by the internal flame region of flame, thus can more make to wait for smelting metal generally in it is more uniform it is weak also
It in former ring condition and temperature condition, and is sprayed positioned at waiting for that the flame of smelting metal both sides is opposite, at the middle part for waiting for smelting metal
Surrounding crosses, and under the mutual impact of convection current, direction of two flames after crossing is towards the outside for waiting for smelting metal, to more have
The flame envelope region for avoiding flame of effect and wait for smelting metal basis, it is more effective to reduce alloying element scaling loss in fusion process.
Accumulating type heat exchanger of revolution 2 includes heat exchanging chamber, heat storage, separator 22 and driving device；Heat storage is accommodating
In in heat exchanging chamber and by driving device drive rotate, heat storage is honeycomb ceramic heat accumulator, i.e., the interior parallel of heat storage in
It is formed with multiple equally distributed through-holes on the direction of rotary shaft, for enabling flow through, and is sent out between the ontology of heat storage
Raw good heat exchange；Separator 22 is whole structure in a ring, and is parallel to the rotary shaft of heat exchanging body, setting heat storage with
The inner space of heat exchanging chamber is separated into the first heat transfer space 23 and second heat exchange sky by the gap location between heat exchanging chamber, separator 22
Between 21, the first heat transfer space 23 is for making the air in air pipe line 4 pass through, and the second heat transfer space 21 is for making flue gas pipeline 3
Interior flue gas passes through, and air and flue gas can be each passed through when respectively by the first heat transfer space 23 and the second heat transfer space 21
Through-hole on heat storage, the part heat storage that the flue gas of high temperature will be passed through heats, and the part accumulation of heat that air will then be passed through
Body cools down, and is rotated since heat storage is driven by driving device always, so being heated by high-temperature flue gas in the second heat transfer space 21
Part heat storage afterwards can be gradually transferred in the first heat transfer space 23, to be obtained to the air in the first heat transfer space 23
Preheating, meanwhile, this part heat exchanging body also gradually receives the cooling of the air constantly injected and cools down, until subsequently going back to again
Into the second heat transfer space 21, and the effect of cooling can be formed to flue gas, recycle according to this, make the air in air pipe line 4 and row
Flue gas in smoke pipe road forms heat exchange, to playing the role of preheating to the air for participating in burning, and to that will discharge
Flue gas plays the role of cooling, and under same thermal load conditions, combustion air is preheating to 800 DEG C or so, saves fuel, reduces
Pollutant emission reduces production cost, thus reduces energy consumption, and improve the quality of melting.
Driving device preferably drives heat storage uniform rotation to be in a certain particular orientation when heat storage uniform rotation
Time for being contacted with high-temperature flue gas or air of part heat storage be fixed, so the temperature in each orientation of heat storage is all
It is fixed, therefore the air after heat storage heats has metastable preheating temperature upon mixing, is subsequently entering
When participating in burning in burner hearth 1, since burning condition is stablized, the air of burning is participated in by obtaining preheating, therefore can guarantee burner hearth 1
Interior furnace pressure will not fluctuate, and can be controlled within 0-10Pa, can prevent the phenomenon that fire door is burned with anger, furnace atmosphere, temperature
It is relatively uniform, it can be controlled within the scope of ± 5 DEG C.
Throttling set 6 can be set on air pipe line 4, for adjusting air pipe line according to technique thermal load demands
Air current limliting after rotation commutation heater preheating, voltage stabilizing are made it steadily participate in burning, increased by 4 pore size
1 internal temperature of burner hearth and pressure adjustable adjusting range.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of gas-fired cupola, which is characterized in that including：
Burner hearth (1), interior be placed with of the burner hearth (1) wait for smelting metal；
Fuel gas pipeline (5), the fuel gas pipeline (5) are connected to the lower part of the side wall of the burner hearth (1), are used for combustion gas obliquely
It is injected in the burner hearth (1)；
Air pipe line (4), the air pipe line (4) are connected to the burner hearth (1), for being passed through air into the burner hearth (1),
And the tie point of the air pipe line (4) and the burner hearth (1) is located at the connection of the fuel gas pipeline (5) and the burner hearth (1)
The top of point, for making the mixed airflow that the air being passed through in burner hearth (1) is formed with the combustion gas being passed into burner hearth (1) towards institute
It states and waits for smelting metal；
Igniter, the igniter are arranged in the inside of the burner hearth (1), the combustion gas for that will be passed through in burner hearth (1) and air
Mixed airflow light；And
Flue gas pipeline (3), the flue gas pipeline (3) is connected to the burner hearth (1), for discharging the flue gas in the burner hearth (1)；
The air pipe line (4) is equipped with throttling set (6).
2. gas-fired cupola according to claim 1, which is characterized in that the fuel gas pipeline (5) is two groups, described in two groups
Fuel gas pipeline (5) is symmetrically connected in the both sides of the burner hearth (1)；
The air pipe line (4) be with fuel gas pipeline (5) is correspondingly arranged described in two groups two groups.
3. gas-fired cupola according to claim 1, which is characterized in that the jet port of the fuel gas pipeline (5) and level
Direction is at 15 °~30 ° angles.
4. gas-fired cupola according to claim 3, which is characterized in that the jet port level of the air pipe line (4) is set
It sets.
5. gas-fired cupola according to claim 1, which is characterized in that the flue gas pipeline (3) and the burner hearth (1)
Top is connected to.
6. gas-fired cupola according to any one of claims 1 to 5, which is characterized in that further include heat exchanger, the heat exchange
Device is used to make the air in the air pipe line (4) that heat exchange occurs with the flue gas in flue gas pipeline (3).
7. gas-fired cupola according to claim 6, which is characterized in that the accumulating type heat exchanger of revolution includes heat exchange
Chamber, heat storage, separator (22) and driving device；
The heat storage, which is placed in the heat exchanging chamber and is driven by the driving device, to be rotated；
The rotary shaft that the separator (22) is parallel to the heat exchanging body is arranged and is separated into the inner space of the heat exchanging chamber
First heat transfer space (23) and the second heat transfer space (21), first heat transfer space (23) is for making the air pipe line (4)
Interior air passes through, and second heat transfer space (21) is for making the flue gas in the flue gas pipeline (3) pass through.
8. gas-fired cupola according to claim 6, which is characterized in that the driving device drives the heat storage at the uniform velocity
Rotation.
9. gas-fired cupola according to claim 6, which is characterized in that the heat storage is honeycomb ceramic heat accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602918.2A CN106052377B (en) | 2016-07-27 | 2016-07-27 | Gas-fired cupola |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602918.2A CN106052377B (en) | 2016-07-27 | 2016-07-27 | Gas-fired cupola |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106052377A CN106052377A (en) | 2016-10-26 |
| CN106052377B true CN106052377B (en) | 2018-09-07 |
Family
ID=57417103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610602918.2A Active CN106052377B (en) | 2016-07-27 | 2016-07-27 | Gas-fired cupola |
Country Status (1)
| Country | Link |
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| CN (1) | CN106052377B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631517A (en) * | 2017-09-06 | 2018-01-26 | 同方节能装备有限公司 | A kind of flue gas flashes back formula direct combustion type heat pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4301322C2 (en) * | 1993-01-20 | 1994-12-15 | Feustel Hans Ulrich Dipl Ing | Process and device for melting ferrous metal materials |
| JP5052416B2 (en) * | 2008-05-30 | 2012-10-17 | アイシン高丘株式会社 | Gas cupola for metal dissolution |
| CN201811559U (en) * | 2010-09-14 | 2011-04-27 | 霍恩源 | Energy-saving environment-friendly cupola furnace |
| CN102878817A (en) * | 2012-09-25 | 2013-01-16 | 北京神雾环境能源科技集团股份有限公司 | Continuous combusting regenerative industrial furnace |
| CN103672870A (en) * | 2013-10-10 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Combustion device for heating furnace and heating furnace with combustion device |
| CN206056234U (en) * | 2016-07-27 | 2017-03-29 | 北京神雾环境能源科技集团股份有限公司 | Gas-fired cupola |
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2016
- 2016-07-27 CN CN201610602918.2A patent/CN106052377B/en active Active
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| Publication number | Publication date |
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| CN106052377A (en) | 2016-10-26 |
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