CN102418935A - Furnace combustion structure having function of oxygen-supporting combustion - Google Patents
Furnace combustion structure having function of oxygen-supporting combustion Download PDFInfo
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- CN102418935A CN102418935A CN2011104247974A CN201110424797A CN102418935A CN 102418935 A CN102418935 A CN 102418935A CN 2011104247974 A CN2011104247974 A CN 2011104247974A CN 201110424797 A CN201110424797 A CN 201110424797A CN 102418935 A CN102418935 A CN 102418935A
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Abstract
The invention relates to a furnace combustion structure having the function of oxygen-supporting combustion, which comprises a combustion nozzle, a combustion supporting air nozzle and a furnace body space, wherein the combustion supporting air nozzle is composed of an upper skew arch above, a lower bottom plate and sidewalls at two sides, the combustion nozzle which is disposed below the combustion supporting air nozzle is provided with 3 horn-shaped oxygen-supporting combustion nozzles (combustor flame is transversely distributed) and is 0.5 to 1 meter away from the furnace body space, and an included angle of 14 degrees is formed between the combustion supporting air nozzle and the combustion nozzle. When a furnace having this structure is in used, fuel is mixed with low-temperature combustion supporting air entering from a heat accumulation chamber so as to result in a carbon separation process and then enters into the high-temperature furnace body for combustion. The structure can improve the uniformity of temperature field in the furnace, enhance the radiation coefficient of fuel-combusting flame and the production quality of metallurgical accessories, and intensify the heat exchange capability of combustion flame and metallurgical accessories, thus fuel consumption, pollutant emission and production cost of metallurgical accessories are all reduced.
Description
Affiliated technical field
The present invention relates to a kind of kiln burning structure, especially a kind ofly belong to the Regenerative Combustion Technology field, and be mainly used in the kiln burning structure in the metallurgic auxiliary materials heating system of cross flame metallurgic auxiliary materials tank furnace with comburant oxygen.
Background technology
Metallurgic auxiliary materials is to produce the high-quality necessary raw material of steel at present, and high-quality metallurgic auxiliary materials can improve the quality of steel, produces high-quality metallurgic auxiliary materials and then must depend on the outstanding kiln of performance.Kiln temperature inside field has decisive for the production of metallurgic auxiliary materials; Kiln is the second largest power consumption industry that is only second to boiler at present simultaneously; In recent years, along with the appearance of national energy-conserving and environment-protective relevant laws and regulations, and the rising steadily of fuel price; How to improve the combustibility of fuel, become an advanced problems in the burning industry.
Dissimilar kilns is also adopted in the production of present domestic metallurgic auxiliary materials, but from the situation of present application, dissimilar kilns; Because its internal temperature field is also inhomogeneous; And the quality of the metallurgic auxiliary materials that causes producing is not high, simultaneously because the radiation coefficient of kiln combustion flame is not high, thereby has caused the radianting capacity of combustion flame not strong; Reduce the heat-exchange capacity of combustion flame and metallurgic auxiliary materials, and then caused the increase of energy consumption.Finally, cause the increase of cost.In view of the situation, the present invention is intended to propose a kind of kiln burning structure with comburant oxygen, to solve the defective of kiln in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of furnace construction that can improve kiln temperature inside field uniformity; To improve the production quality of fuel combustion flame radiation coefficient and metallurgic auxiliary materials; Strengthen the heat-exchange capacity of combustion flame and metallurgic auxiliary materials; Thereby reduce the consumption of fuel and the production cost of metallurgic auxiliary materials, and then solve problems such as the energy consumption that exists in existing furnace construction metallurgic auxiliary materials quality high, that produce is low.
Technical scheme of the present invention is achieved in that the kiln burning structure that has comburant oxygen for this, and according to the requirement of kiln burning to combustion flame, flame will have certain rigid, and directionality will be got well, and it is big that the flame coverage rate is wanted; The length of flame that forms is suitable, and can adjust according to the production needs.
Therefore, kiln of the present invention adopts the unit kiln structure, and unitary space structure of inner formation can make full use of the inner unitary space of kiln like this, makes that the fusing of metallurgic auxiliary materials is effectively guaranteed.This kiln burning structure; Comprise fuel nozzle ports, combustion air spout, furnace space; The combustion air spout is made up of the oblique arch of top, the base plate of below and the side wall of both sides; Fuel nozzle ports is arranged in the bottom of combustion air spout, and has certain distance from furnace space, has oblique arch and base plate angle between combustion air spout and the fuel nozzle ports.Fuel nozzle ports has one or more trumpet-shaped nozzles, and to have a nozzle at least be the comburant oxygen nozzle, and preferable case is to have 3 nozzles and be the comburant oxygen nozzle.
In addition, tiltedly arch has an oblique arch angle of declination b, and base plate has a base plate angle of declination c, and tiltedly the size of arch and base plate angle is 5 °～20 °, is preferably 14 °; Fuel nozzle ports is 0.5 meter～1 meter apart from furnace space.
Adopt its combustion fuel of kiln of burning structure of the present invention can adopt fuel such as natural gas, heavy oil, diesel oil, coal gas generation gas, burner flame adopts cross flame to arrange.When kiln moves; Fuel is analysed the carbon process with after the lower combustion air of temperature that gets into from regenerator mixes, and enters into the kiln body of heater internal combustion of high-temperature then; The carbon of separating out in its combustion process has increased the flame radiation coefficient, reaches the purpose that strengthens the Fire Radiation ability.The flame that this kiln burning structure form produces fuel combustion obtains the available heat exchange with inner metallurgic auxiliary materials, has strengthened the heat exchange effect, has guaranteed the uniformity of kiln internal temperature field, has reduced the consumption of fuel simultaneously.
The invention has the beneficial effects as follows:
(1) the kiln form of the present invention's employing is a unit structural form, and unitary space structure of inner formation can make full use of the inner unitary space of kiln like this, makes that the fusing of metallurgic auxiliary materials is effectively guaranteed.
(2) the present invention adopts fuel nozzle ports to be arranged in the bottom of combustion air spout, and has certain distance (being approximately about 0.5 meter to 1 meter) from furnace space, and combustion air spout and fuel nozzle ports have certain included angle; Fuel is with after the lower combustion air of temperature mixes; Analyse the carbon process, enter into the kiln body of heater internal combustion of high-temperature then, adopt the comburant oxygen nozzle to improve the radiation coefficient of combustion flame; Reach the purpose that strengthens the Fire Radiation ability; Strengthen the heat-exchange capacity of combustion flame and metallurgic auxiliary materials, reduced the consumption of fuel, thereby reduced the production cost of metallurgic auxiliary materials.
(3) the present invention makes that kiln temperature inside field is more even owing to improved the radiation coefficient of combustion flame, thereby has improved the uniformity of metallurgic auxiliary materials fusing, has guaranteed the production of high-quality metallurgic auxiliary materials.
(4) the comburant oxygen nozzle that adopts among the present invention has very strong adaptability for the combustion fuel of kiln, can be applied to fuel such as natural gas, heavy oil, diesel oil, coal gas generation gas.Simultaneously, whole pollutant discharge amount declines to a great extent behind the employing comburant oxygen.
(5) the comburant oxygen nozzle that adopts among the present invention is the horn-like nozzle that no-movable part connects, and easy accessibility need not to safeguard.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a kiln burning structure sketch map of the present invention
Fig. 2 is the nozzle-integrated structure enlarged drawing among Fig. 1
Fig. 3 is the nozzle monomer structure figure among Fig. 2
Fig. 4 is the side view of the nozzle among Fig. 3
Among the figure
The specific embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.Need to prove before this; Employed term or word can not limited interpretation be common implication or the implication in the dictionary in this specification and claims, and should be based on being interpreted as implication and the notion that meets technological thought of the present invention for the principle that can suitably define the notion of term with its invention inventor of best mode explanation.Thereupon; The structure of representing in embodiment that this specification is put down in writing and the accompanying drawing is one of most preferred embodiment of the present invention; Can not represent technological thought of the present invention fully, therefore should be understood that to have various equivalents and the variation that to replace for the present invention.
As shown in Figure 1, this kiln adopts the unit kiln structure, and unitary space structure of inner formation can make full use of the inner unitary space of kiln like this, makes that the fusing of metallurgic auxiliary materials is effectively guaranteed.This kiln burning structure; Comprise fuel nozzle ports 1, combustion air spout 2, furnace space 3, combustion air spout 2 constitutes (side wall is parallel to paper, and is not shown) by the oblique arch 4 of top, the base plate 5 of below and the side wall of both sides; Fuel nozzle ports 1 is arranged in the bottom of combustion air spout 2; And have certain distance from furnace space 3, in addition, its burner flame adopts cross flame to arrange; Have oblique arch and base plate angle 6 between combustion air spout 2 and the fuel nozzle ports 1.Fuel nozzle ports 1 has one or more trumpet-shaped nozzles 11, and to have a nozzle 11 at least are comburant oxygen nozzles, and preferable case is to have 3 nozzles 11 and be the comburant oxygen nozzle.
In addition, tiltedly arch 4 has an oblique arch angle of declination b 41, and base plate 5 has a base plate angle of declination c 51, and tiltedly the size of arch and base plate angle 6 is 5 °～20 °, is preferably 14 °; Fuel nozzle ports 1 is 0.5 meter～1 meter apart from furnace space 3.
Describe and illustrate with reference to the specific embodiment although it should be noted that the present invention, and provided concrete kiln burning structure.But and do not mean that the present invention is limited to the embodiment of these descriptions, those skilled in the art can therefrom derive many different variants, they all will be covered in the true spirit and scope of claim of the present invention.
Claims (8)
1. kiln burning structure with comburant oxygen; Comprise fuel nozzle ports (1), combustion air spout (2), furnace space (3); It is characterized in that: combustion air spout (2) is made up of the oblique arch (4) of top, the base plate (5) of below and the side wall of both sides; Fuel nozzle ports (1) is arranged in the bottom of combustion air spout (2), and has certain distance from furnace space (3), has oblique arch and base plate angle (6) between combustion air spout (2) and the fuel nozzle ports (1); Fuel nozzle ports (1) has one or more trumpet-shaped nozzles (11), and to have a nozzle (11) at least be the comburant oxygen nozzle.
2. a kind of kiln burning structure with comburant oxygen according to claim 1 is characterized in that: tiltedly arch (4) has an oblique arch angle of declination b (41).
3. a kind of kiln burning structure with comburant oxygen according to claim 1 and 2 is characterized in that: base plate (5) has a base plate angle of declination c (51).
4. a kind of kiln burning structure with comburant oxygen according to claim 3 is characterized in that: tiltedly the size of arch and base plate angle (6) is 5 °～20 °.
5. a kind of kiln burning structure with comburant oxygen according to claim 3 is characterized in that: tiltedly the size of arch and base plate angle (6) is 14 °.
6. according to claim 4 or 5 described a kind of kiln burning structures with comburant oxygen, it is characterized in that: fuel nozzle ports (1) is 0.5 meter～1 meter apart from furnace space (3).
7. a kind of kiln burning structure with comburant oxygen according to claim 6 is characterized in that: nozzle (11) quantity on the fuel nozzle ports (1) is 3.
8. a kind of kiln burning structure with comburant oxygen according to claim 7, it is characterized in that: said 3 nozzles (11) are the comburant oxygen nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424797.4A CN102418935B (en) | 2011-12-13 | 2011-12-13 | Furnace combustion structure having function of oxygen-supporting combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424797.4A CN102418935B (en) | 2011-12-13 | 2011-12-13 | Furnace combustion structure having function of oxygen-supporting combustion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102418935A true CN102418935A (en) | 2012-04-18 |
| CN102418935B CN102418935B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110424797.4A Expired - Fee Related CN102418935B (en) | 2011-12-13 | 2011-12-13 | Furnace combustion structure having function of oxygen-supporting combustion |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060007790A (en) * | 2004-07-22 | 2006-01-26 | (주)준산엔지니어링 | Air spray nozzle of rotary kiln |
| JP2007024374A (en) * | 2005-07-14 | 2007-02-01 | Okinawa Kucha Akatsuchi Zokei Kigyo Kumiai | Wood-fired kiln for ceramic art |
| KR20090005774A (en) * | 2007-07-10 | 2009-01-14 | 이영근 | Ceramics sintering furnace |
| CN201648218U (en) * | 2010-03-24 | 2010-11-24 | 河北东旭投资集团有限公司 | Cooling device for PDP float glass kiln combustor |
| CN101907298A (en) * | 2010-07-31 | 2010-12-08 | 中国洛阳浮法玻璃集团有限责任公司 | Hot repair method of port tongue arch of coal-burning glass furnace |
| CN102147110A (en) * | 2010-02-05 | 2011-08-10 | 林德股份公司 | Method for combustion of a low-grade fuel |
| CN202328327U (en) * | 2011-12-13 | 2012-07-11 | 辽宁天和科技股份有限公司 | Kiln combustion structure with oxygen combustion-supporting function |
-
2011
- 2011-12-13 CN CN201110424797.4A patent/CN102418935B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060007790A (en) * | 2004-07-22 | 2006-01-26 | (주)준산엔지니어링 | Air spray nozzle of rotary kiln |
| JP2007024374A (en) * | 2005-07-14 | 2007-02-01 | Okinawa Kucha Akatsuchi Zokei Kigyo Kumiai | Wood-fired kiln for ceramic art |
| KR20090005774A (en) * | 2007-07-10 | 2009-01-14 | 이영근 | Ceramics sintering furnace |
| CN102147110A (en) * | 2010-02-05 | 2011-08-10 | 林德股份公司 | Method for combustion of a low-grade fuel |
| CN201648218U (en) * | 2010-03-24 | 2010-11-24 | 河北东旭投资集团有限公司 | Cooling device for PDP float glass kiln combustor |
| CN101907298A (en) * | 2010-07-31 | 2010-12-08 | 中国洛阳浮法玻璃集团有限责任公司 | Hot repair method of port tongue arch of coal-burning glass furnace |
| CN202328327U (en) * | 2011-12-13 | 2012-07-11 | 辽宁天和科技股份有限公司 | Kiln combustion structure with oxygen combustion-supporting function |
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| CN102418935B (en) | 2014-03-26 |
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