CN102679350A - Gas and oxygen mixed combustion method for cupola furnace and cupola furnace - Google Patents
Gas and oxygen mixed combustion method for cupola furnace and cupola furnace Download PDFInfo
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- CN102679350A CN102679350A CN201210144071XA CN201210144071A CN102679350A CN 102679350 A CN102679350 A CN 102679350A CN 201210144071X A CN201210144071X A CN 201210144071XA CN 201210144071 A CN201210144071 A CN 201210144071A CN 102679350 A CN102679350 A CN 102679350A
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- furnace
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- cupola
- oxygen
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000001301 oxygen Substances 0.000 title claims abstract description 36
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 36
- 239000007789 gas Substances 0.000 title claims abstract description 35
- 238000009841 combustion method Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052742 iron Inorganic materials 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000002737 fuel gas Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000000567 combustion gas Substances 0.000 claims description 26
- 239000000919 ceramic Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 239000007921 spray Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical compound C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention provides a gas and oxygen mixed combustion method for a cupola furnace. The method comprises the following steps of: gasifying liquid oxygen, and mixing the gasified liquid oxygen and air to form oxygen-enriched gas; mixing the oxygen-enriched gas and gas to form oxygen-enriched fuel gas, wherein the oxygen concentration of the oxygen-enriched gas is 3 to 30 percent; and performing high-speed spray combustion on the oxygen-enriched gas under the pressure of 400 to 533kPa. The invention also provides a cupola furnace, which comprises a shaft furnace, a forehearth and a feeder, wherein the shaft furnace comprises a crucible, a nozzle section, a preheating section, a feeding hole section, a hot-air heat exchanger; the crucible is used for accommodating dripped molten iron; the nozzle section is arranged on the upper part of crucible and is used for heating the molten iron formed by melting furnace burden; the preheating section is arranged on the upper part of the nozzle section and is used for heating and melting the furnace burden; the feeding hole section is arranged on the upper part of the preheating section; the hot-air heat exchanger is arranged on the upper part of the feeding hole section and is connected with the nozzle section through a hot-air pipe; the forehearth is used for adjusting the temperature and chemical composition of the molten iron and is connected with the crucible; and the feeder is connected with the feeding hole section. The invention has the advantages that the temperature of the molten iron is greatly improved, and the cupola furnace is low-carbon and energy-saving.
Description
Technical field
The present invention relates to the melting technique field, be meant a kind of method and furnace cupola that is used for the combustion gas and the oxygen mix burning of furnace cupola especially.
Background technology
At present; Domestic existing furnace cupola adopts the burnt furnace cupola of combustion more; The air blast burning of directly blowing; Do not add any combustion-supporting gas, have that production efficiency is low, the difficult control of molten iron temperature, carburetting increases sulphur, insufficient, the discharging problem not up to standard, with serious pollution of burning, do not reach the purpose of low-carbon energy-saving environmental protection.The combustion gas shaft furnace be a kind of be the industrial furnace of fuel melting iron with natural gas, liquefied gas, belong to the state-of-the-art technology of cast iron smelting in world today's scope, this stove also by domestic some be referred to as the natural gas furnace cupola.The combustion gas shaft furnace comes across the former Soviet Union at the beginning of last century the earliest, derives from the improvement of people from former Soviet Union to the fuel oil shaft furnace, and 60～seventies of last century, Britain, the U.S., Germany etc. have successively begun the research and the use of combustion gas shaft furnace.At present, worldwide combustion gas shaft furnace technology is comprised, and the European Union member countries of Germany, Britain monopolize, and the combustion gas shaft furnace is in the application of the existing certain limits in area and country such as European Union, the Middle East, the U.S., Japan, Korea S.But the iron liquid temp of existing combustion gas shaft furnace is lower, the highlyest only reaches 1380 ℃, and the space still has greatly improved.
Summary of the invention
The present invention proposes a kind of method and furnace cupola that is used for the combustion gas and the oxygen mix burning of furnace cupola, has solved the lower problem of iron liquid temp of combustion gas shaft furnace in the prior art.
Technical scheme of the present invention is achieved in that
A kind of method that is used for the combustion gas and the oxygen mix burning of furnace cupola comprises the steps:
With liquid state oxygen gasified after, mix to form oxygen rich gas with air;
Oxygen rich gas and combustion gas mixing are formed oxygen rich fuel gas, and wherein the oxygen concentration of oxygen rich fuel gas is 3%～30%;
With oxygen rich fuel gas high velocity jet burning under the pressure of 400kPa～533kPa.
A kind of furnace cupola comprises:
Shaft furnace comprises cupola well, is used to hold the molten iron of drippage; Be arranged at the burner section of said cupola well top, be used for the molten iron that the gain of heat is fused into by furnace charge; Be arranged at the preheating section of said burner section top, be used for heating and melting batch; Be arranged at the charge door section and the hot blast heat exchanger that is arranged at said charge door section top of said preheating section top, said hot blast heat exchanger is connected with said burner section through warm-air pipe;
Forehearth is used to adjust the temperature and the chemical composition of molten iron, is connected with said cupola well, is arranged at said shaft furnace one side;
Charger is connected with said charge door section, is arranged at said shaft furnace one side.
Preferably, said warm-air pipe is provided with expansion joint.
Further, said burner section comprises:
Water cooled grating is used to support Ceramic Balls and furnace charge;
Burner is used to control fuel gas buring, is arranged at said water cooled grating below, and said burner is connected with air supply line with gas pipeline respectively.
Preferably, said gas pipeline is provided with gas valve.
Preferably, be provided with punched bend between said air supply line and the said burner, be respectively equipped with electric control valve and manual modulation valve on the said air supply line.
Further, said shaft furnace also comprises:
The wet method spark catcher is arranged at said hot blast heat exchanger top and is connected with said hot blast heat exchanger through reducer, and said wet method spark catcher also is connected with sewage pipe, and said sewage pipe (109) is arranged at said shaft furnace one side.
Further, said shaft furnace also comprises:
Moving track is used to adjust the distance between said shaft furnace and the ground, is arranged at said shaft furnace below.
Further, said shaft furnace also comprises:
The furnace gas cooling blower is connected with said charge door section, is arranged at said shaft furnace one side.
Further, said shaft furnace also comprises:
Vent valve is connected with said charge door section, is arranged at said shaft furnace one side.
Beneficial effect of the present invention is:
1, effectively improve flame temperature, the iron liquid temp is increased substantially, can reach 1450 ℃～1550 ℃, melting performance, melting rate, iron liquid temp adjustable extent are big, can effectively control the oxidization burning loss of iron liquid, obtain the high-quality molten iron.
2, use combustion gas to act as a fuel, the dust content in the furnace gas is low, has alleviated the load of dust pelletizing system, has reduced the investment and the operating cost of dust pelletizing system; Do not contain SO in the furnace gas
2, CO content is very low, and is low to the pollution level of air; Iron liquid does not receive the pollution of furnace charge, does not increase sulphur, and the iron liquid quality of acquisition is good; Can use the pipeline delivery of fuel gas, avoided coke storage, transport and select, easy to use, regulate easily and control, help keeping the clean and tidy of working environment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of furnace cupola of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the connection sketch map of the burner of a kind of furnace cupola of the present invention.
Among the figure:
1, shaft furnace; 101, cupola well; 102, burner section; 1021, water cooled grating; 1022, burner; 1023, Ceramic Balls; 103, preheating section; 104, charge door section; 105, hot blast heat exchanger; 106, warm-air pipe; 107, wet method spark catcher; 108, reducer; 109, sewage pipe; 110, moving track; 111, furnace gas cooling blower; 112, vent valve; 113, expansion joint; 114, gas pipeline; 1141, gas valve; 115, air supply line; 1151, punched bend; 1152, electric control valve; 1153, manual modulation valve; 2, forehearth; 3, charger.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
A kind of method that is used for the combustion gas and the oxygen mix burning of furnace cupola of the present invention comprises the steps:
With liquid state oxygen gasified after, mix to form oxygen rich gas with air;
Oxygen rich gas and combustion gas mixing are formed oxygen rich fuel gas, and wherein the oxygen concentration of oxygen rich fuel gas is 3%～30%;
With oxygen rich fuel gas high velocity jet burning under the pressure of 400kPa～533kPa.
Wherein, 400kPa～533kPa (kPa, kPa) is 3000mmHg～4000mmHg (mmHg, millimetres of mercury).
Shown in Fig. 1-3, in first embodiment of a kind of furnace cupola of the present invention, said furnace cupola comprises:
Shaft furnace 1 comprises cupola well 101, is used to hold the molten iron of drippage; Be arranged at the burner section 102 of said cupola well 101 tops, be used for the molten iron that the gain of heat is fused into by furnace charge; Be arranged at the preheating section 103 of said burner section 102 tops, be used for heating and melting batch; Be arranged at the charge door section 104 and the hot blast heat exchanger 105 that is arranged at said charge door section 104 tops of said preheating section 103 tops, said hot blast heat exchanger 105 is connected with said burner section 102 through warm-air pipe 106;
Forehearth 2 is used to adjust the temperature and the chemical composition of molten iron, is connected with said cupola well 101, is arranged at said shaft furnace 1 one sides;
Charger 3 is connected with said charge door section 104, is arranged at said shaft furnace 1 one sides.
Wherein, said warm-air pipe 106 is provided with expansion joint 113, with compensation change in size former thereby that produce such as expand with heat and contract with cold.
Wherein, said burner section 102 comprises:
Water cooled grating 1021 is used to support Ceramic Balls 1023 and furnace charge;
Burner 1022 is used to control fuel gas buring, is arranged at said water cooled grating 1021 belows, and said burner 1022 is connected with air supply line 115 with gas pipeline 114 respectively.Said gas pipeline 114 is provided with gas valve 1141.Be provided with punched bend 1151 between said air supply line 115 and the said burner 1022, be respectively equipped with electric control valve 1152 and manual modulation valve 1153 on the said air supply line 115.
Particularly, Ceramic Balls 1023 is arranged at water cooled grating 1021 tops, and furnace charge is arranged at Ceramic Balls 1023 tops.
In another embodiment of the present invention, said shaft furnace 1 also comprises:
Wet method spark catcher 107 is arranged at said hot blast heat exchanger 105 tops and is connected with said hot blast heat exchanger 105 through reducer 108, and said wet method spark catcher 107 also is connected with sewage pipe 109, and said sewage pipe 109 is arranged at said shaft furnace 1 one sides.
In another embodiment of the present invention, said shaft furnace 1 also comprises:
Moving track 110 is used to adjust the distance between said shaft furnace 1 and the ground, is arranged at said shaft furnace 1 below.
Wherein, the main effect of moving track 110 is, this furnace cupola is keeped in repair, when checking, rising shaft furnace 1 is so that operations such as the staff keeps in repair, inspections.
In another embodiment of the present invention, said shaft furnace 1 also comprises:
Furnace gas cooling blower 111 is connected with said charge door section 104, is arranged at said shaft furnace 1 one sides.
In another embodiment of the present invention, said shaft furnace 1 also comprises:
The principle of furnace cupola of the present invention is following:
A kind of method and furnace cupola that is used for the combustion gas and the oxygen mix burning of furnace cupola of the present invention, its advantage is specific as follows:
1, fuel gas buring generates carbon dioxide and water, does not have carbon monoxide in the combustion tail gas, does not comprise potential chemical heat, and the efficiency of combustion of combustion gas shaft furnace is 100%, so this stove belongs to the industrial furnace of saving the energy at present most.
2, combustion gas belongs to clean energy resource, and in the undressed tail gas of combustion gas shaft furnace, its dust concentration is about 20mg/m
3(dust concentration in the clean air of city is about 10mg/m
3), this stove is very beneficial for protecting atmospheric environment.Simultaneously, the slag amount that produces in this stove fusion process is few, helps reducing industrial solid waste landfill and other handle the adverse effect that environment is caused.
3, at present owing to environmental protection, many people hope to substitute the burnt furnace cupola of combustion with electric induction furnace.As everyone knows; China's electric power can not satisfy the electricity consumption needs of national foundary industry, just not saying the defective that electric furnace cast iron exists aspect graphite form should be considered simultaneously; The overwhelming majority of China's electric energy derives from thermal power generation; Be the secondary energy sources that formed by coal conversion, the efficient that the coal electricity transforms has only 20%～30%, exists a large amount of energy wastes in the power generation process.In addition, coal belongs to the industrial chemicals of nonrenewable precious, acts as a fuel to use the sustainable development that is unfavorable for very much China's chemical industry.
4, according to relevant research report, the coal resources in some historical producing coal areas of China have been on the verge of exhaustion, and for example, the coal resources of Fushun are exhausted at present, and the Shandong Province will not have coal and can adopt after 20 years; And the present amount of natural gas of exploiting of China only accounts for 0.6% of proved reserves.Because energy reserve replaces the burnt furnace cupola of combustion with the combustion gas shaft furnace, not only helps the sustainable development of China's industry, and has become the extremely urgent economic strategy needs of China's foundary industry.
5, because technical monopoly, European Union's combustion gas shaft furnace is to China's sale price at present, every about 2,000,000, probably be ten times of this stove cost of domestic manufacturing.The combustion gas shaft furnace price that European Union is high; Directly influenced this stove promoting the use of in China; The combustion gas shaft furnace that autonomous research and development have national intellectual property; Help breaking European Union's combustion gas shaft furnace technology and price fixing worldwide, not only be of value to energy-saving and environmental protection, the sustainable development of China's foundary industry, and can contribute world's foundary industry.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method that is used for the combustion gas and the oxygen mix burning of furnace cupola is characterized in that, comprises the steps:
With liquid state oxygen gasified after, mix to form oxygen rich gas with air;
Oxygen rich gas and combustion gas mixing are formed oxygen rich fuel gas, and wherein the oxygen concentration of oxygen rich fuel gas is 3%～30%;
With oxygen rich fuel gas high velocity jet burning under the pressure of 400kPa～533kPa.
2. a furnace cupola is characterized in that, comprising:
Shaft furnace (1) comprises cupola well (101), is used to hold the molten iron of drippage; Be arranged at the burner section (102) of said cupola well (101) top, be used for the molten iron that the gain of heat is fused into by furnace charge; Be arranged at the preheating section (103) of said burner section (102) top, be used for heating and melting batch; Be arranged at the charge door section (104) and the hot blast heat exchanger (105) that is arranged at said charge door section (104) top of said preheating section (103) top, said hot blast heat exchanger (105) passes through warm-air pipe (106) and is connected with said burner section (102);
Forehearth (2) is used to adjust the temperature and the chemical composition of molten iron, is connected with said cupola well (101), is arranged at said shaft furnace (1) one side;
Charger (3) is connected with said charge door section (104), is arranged at said shaft furnace (1) one side.
3. a kind of furnace cupola according to claim 2 is characterized in that, said warm-air pipe (106) is provided with expansion joint (113).
4. a kind of furnace cupola according to claim 2 is characterized in that, said burner section (102) comprising:
Water cooled grating (1021) is used to support Ceramic Balls (1023) and furnace charge;
Burner (1022) is used to control fuel gas buring, is arranged at said water cooled grating (1021) below, and said burner (1022) is connected with air supply line (115) with gas pipeline (114) respectively.
5. a kind of furnace cupola according to claim 4 is characterized in that, said gas pipeline (114) is provided with gas valve (1141).
6. a kind of furnace cupola according to claim 4; It is characterized in that; Be provided with punched bend (1151) between said air supply line (115) and the said burner (1022), be respectively equipped with electric control valve (1152) and manual modulation valve (1153) on the said air supply line (115).
7. according to each described a kind of furnace cupola of claim 1～6, it is characterized in that said shaft furnace (1) also comprises:
Wet method spark catcher (107); Be arranged at said hot blast heat exchanger (105) top and pass through reducer (108) and be connected with said hot blast heat exchanger (105); Said wet method spark catcher (107) also is connected with sewage pipe (109), and said sewage pipe (109) is arranged at said shaft furnace (1) one side.
8. a kind of furnace cupola according to claim 7 is characterized in that, said shaft furnace (1) also comprises:
Moving track (110) is used to adjust the distance between said shaft furnace (1) and the ground, is arranged at said shaft furnace (1) below.
9. a kind of furnace cupola according to claim 8 is characterized in that, said shaft furnace (1) also comprises:
Furnace gas cooling blower (111) is connected with said charge door section (104), is arranged at said shaft furnace (1) one side.
10. a kind of furnace cupola according to claim 9 is characterized in that, said shaft furnace (1) also comprises:
Vent valve (112) is connected with said charge door section (104), is arranged at said shaft furnace (1) one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210144071.XA CN102679350B (en) | 2012-05-11 | 2012-05-11 | A kind of method of combustion gas for furnace cupola and oxygen mix burning and furnace cupola |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210144071.XA CN102679350B (en) | 2012-05-11 | 2012-05-11 | A kind of method of combustion gas for furnace cupola and oxygen mix burning and furnace cupola |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102679350A true CN102679350A (en) | 2012-09-19 |
| CN102679350B CN102679350B (en) | 2016-06-01 |
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| CN201210144071.XA Expired - Fee Related CN102679350B (en) | 2012-05-11 | 2012-05-11 | A kind of method of combustion gas for furnace cupola and oxygen mix burning and furnace cupola |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601363A (en) * | 2013-11-11 | 2014-02-26 | 山东建筑大学 | Method for gradient utilization of heat of fuel gas cupola producing rock wool |
| CN104457215A (en) * | 2014-09-28 | 2015-03-25 | 刘建平 | Method for preparing high-temperature molten iron by fusing casting pigs |
| CN104792150A (en) * | 2015-04-27 | 2015-07-22 | 乔治费歇尔汽车产品(昆山)有限公司 | Natural gas cupola furnace |
| CN105506210A (en) * | 2014-09-26 | 2016-04-20 | 北京三烽节能环保科技发展有限公司 | Vertical gas furnace and melting method for fusing and reducing metal material |
| CN109357268A (en) * | 2018-09-16 | 2019-02-19 | 烟台汉唐环保设备有限公司 | The process of waste and old paint kettle is handled using the oxygen-enriched natural gas shaft furnace of hot wind |
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