CN1869516A - Internal combustion blast furnace special gas nozzle with circular fluidic device - Google Patents
Internal combustion blast furnace special gas nozzle with circular fluidic device Download PDFInfo
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- CN1869516A CN1869516A CN 200610044237 CN200610044237A CN1869516A CN 1869516 A CN1869516 A CN 1869516A CN 200610044237 CN200610044237 CN 200610044237 CN 200610044237 A CN200610044237 A CN 200610044237A CN 1869516 A CN1869516 A CN 1869516A
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- blast furnace
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Abstract
The invention discloses a special burner of internal-combustion blast furnace coal gas which configured the circular cone fluidic device. It can make blast furnace coal gas emblazed and keep burning at normal station, with a frame of : nozzle installed at one end of the burning tube, the circular cone fluidic device is installed in the burner, the burning tube should set at least one air hole.
Description
Technical field
The present invention relates to a kind of burner noz(zle), relate in particular to a kind of internal combustion blast furnace special gas nozzle with circular fluidic device.
Background technology
Along with the fast development of national economy, the energy consumption of iron and steel enterprises is also growing.And the international petroleum price is constantly soaring, to cost product, the profit generation influence greatly of enterprise.Therefore, seeking a kind of good method, blast furnace gas (claiming blast furnace waste gas in the past) is gone to substitute oil product, is a major issue of benefiting the nation and the people.
For a long time, China is always in the method for constantly exploring the reasonable utilization of blast furnace gas, but traditional burner is because its unreasonable structure, and coal gas just mixes and mix inhomogeneous after leaving burner with combustion air, influenced the chemical reaction of fuel and air.Therefore, be easy to generate the phenomenon that cutoff is extinguished, and light difficulty.In addition, because the combustion fan forced air supply is arranged, very difficult ratio of regulating air fuel exactly can not make full use of fuel, and the carbon monoxide content in the waste gas is higher, has both wasted the energy, has reduced baking temperature again.Therefore also do not find a kind of effective ways that phenomenon is extinguished in cutoff of under the normal temperature state, lighting easily, not occur up to now.
Summary of the invention
Problems such as purpose of the present invention is difficult for lighting under the normal temperature state in order to solve present blast furnace gas exactly, easy cutoff is extinguished, provide a kind of have rational in infrastructure, easy to use, can make blast furnace gas under the normal temperature state, light and keep the internal combustion blast furnace special gas nozzle of the band circular fluidic device of advantages such as normal combustion.
For achieving the above object, the present invention has adopted following technical scheme: a kind of internal combustion blast furnace special gas nozzle with circular fluidic device, it has the nozzle that is installed in combustion tube one end, the circular fluidic device that matches with it is installed in described nozzle, and combustion tube and this device correspondence position are provided with at least one pore.
Described circular fluidic device comprises a Rotary-table path transfer valve, and it is connected with the path transfer valve operating rod, and the top of path transfer valve operating rod is provided with the path transfer valve hand wheel.
The other end of described nozzle is connected with blast furnace gas pipeline.
Described pore has several, and they are arranged on and the jet expansion relevant position along the tube wall circumference uniform distribution of combustion tube.
Described pore is the slit between combustion tube and nozzle.
Described pore comprise slit between combustion tube and nozzle and several along combustion tube tube wall circumference uniform distribution, be arranged on the pore with the jet expansion relevant position.
Described combustion tube length is greater than the length that is positioned at combustion tube inner nozzle part.
The present invention adopts the method for internal combustion, and flame is just taken fire in burner inside, makes tube wall improve temperature, causes a kind of hot environment, and the chemical reaction of fuel is accelerated, and has also just solved the problem that cutoff is extinguished.
In addition, burner is introduced combustion tube with the method for jet air inducing with combustion air, can realize automatic air distribution, under the situation of regulated at will gas using quantity, make the air-fuel ratio of burner remain at optimum state, produce the highest ignition temperature, just coal gas can be made full use of.Owing to adopted air inducing mode, removed the combustion fan of traditional burner.Not only reduce equipment investment, also just do not had power consumption simultaneously.
Because different coal gas needs different air-fuel ratios, therefore, this device has designed coal gas path transfer valve, can the Rotary-table valve be moved up and down by handwheel, path transfer control stick, the consumption of control coal gas, can realize best air-fuel ratio on the one hand, reduce the influx of high heating value gas simultaneously again, also just reach the purpose of energy savings.
The characteristics that this device is other, it is the jet direction that the Rotary-table valve has changed coal gas, produced the Rotary-table air curtain of a sealing at jet orifice, its direction flings tube wall, combustion air certainly will will pass the coal gas air curtain, therefore, combustion gas is fully mixed with combustion air, overcome traditional burner air and mixed unfavourable defect with coal gas.This just abundant mixing has improved the probability that air and coal gas meet, and has improved the physical condition of mist, and flame is just taken fire in Rotary-table valve lower edges.The gas of burning expands rapidly in combustion tube, forces flame to quicken to the combustion tube outlet, has improved the jet power of flame, and is highly beneficial to the ladle baking of steel-making, solved that traditional burner impulsive force is poor, flame is difficult to be flushed to the bag difficult problem at the end.
Beneficial effect of the present invention is: after testing, the carbon monoxide content in discarding is 0.Surrounding environment is not produced pollution, is a kind of comparatively desirable apparatus for baking, coal gas and air if can be carried out preheating, can improve baking temperature, and effect is better.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein, 1. combustion tube, 2. nozzle, 3. pore, 4. Rotary-table path transfer valve, 5. path transfer valve operating rod, 6. path transfer valve hand wheel, 7. blast furnace gas pipeline.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Embodiment one:
Among Fig. 1, blast furnace gas pipeline 1 is connected with an end of nozzle 2, and the other end of nozzle 2 then places an end of combustion tube 1, and its other end is the outlet of flame.The nozzle 2 built-in circular fluidic devices that match with its shape, this device comprises a Rotary-table path transfer valve 4, it is connected with path transfer valve operating rod 5, the top of path transfer valve operating rod 5 connects path transfer valve hand wheel 6, by rotating path transfer valve hand wheel 6, can lifting or put down Rotary-table path transfer valve 4, thus control makes it can remain on the Rotary-table air curtain of a comparatively desirable sealing by the air-flow of nozzle 2 ejections.
For guaranteeing fully mixing of combustion gas and combustion air, at the perisporium upper edge circumference of combustion tube 1 and nozzle 2 correspondence positions several pores 3 are set, while combustion tube 1 and 2 at nozzle leave the slit.Like this when combustion gas at a high speed enters combustion tube, its formed powerful negative pressure impels combustion air to enter combustion tube 1 participation burning by pore 3, like this by controlling the speed that sprays into of combustion gas, promptly control Rotary-table path transfer valve 4, can reach the purpose of automatic control combustion air inlet, guarantee fully carrying out of burning.
Embodiment two:
In the present embodiment, different with embodiment one is that pore 3 has several, is arranged on the circumference perisporium with nozzle 2 correspondence positions.
Embodiment three:
In the present embodiment, different with embodiment one is that pore 3 leaves the slit for combustion tube 1 and 2 at nozzle.
Claims (7)
1, a kind of internal combustion blast furnace special gas nozzle with circular fluidic device, it has the nozzle (2) that is installed in combustion tube (1) one end, it is characterized in that: the circular fluidic device that matches with it is installed in described nozzle (2), and combustion tube (1) is provided with at least one pore (3) with this device correspondence position.
2, the internal combustion blast furnace special gas nozzle of band circular fluidic device according to claim 1, it is characterized in that: described circular fluidic device comprises a Rotary-table path transfer valve (4), it is connected with path transfer valve operating rod (5), and the top of path transfer valve operating rod (5) is provided with path transfer valve hand wheel (6).
3, the internal combustion blast furnace special gas nozzle of band circular fluidic device according to claim 1 is characterized in that: the other end of described nozzle (2) is connected with blast furnace gas pipeline (7).
4, the internal combustion blast furnace special gas nozzle of band circular fluidic device according to claim 1 is characterized in that: described pore (3) has several, and they are arranged on and nozzle (2) outlet relevant position along the tube wall circumference uniform distribution of combustion tube (1).
5, the internal combustion blast furnace special gas nozzle of band circular fluidic device according to claim 1 is characterized in that: described pore (3) is the slit between combustion tube (1) and nozzle (2).
6, the internal combustion blast furnace special gas nozzle of band circular fluidic device according to claim 1 is characterized in that: described pore (3) comprise slit between combustion tube (1) and nozzle (2) and several along combustion tube (1) tube wall circumference uniform distribution, be arranged on and the pore (3) of nozzle (2) outlet relevant position.
7, the internal combustion blast furnace special gas nozzle of band circular fluidic device according to claim 1 is characterized in that: described combustion tube length is greater than the length that is positioned at combustion tube inner nozzle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044237 CN1869516A (en) | 2006-05-23 | 2006-05-23 | Internal combustion blast furnace special gas nozzle with circular fluidic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044237 CN1869516A (en) | 2006-05-23 | 2006-05-23 | Internal combustion blast furnace special gas nozzle with circular fluidic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1869516A true CN1869516A (en) | 2006-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610044237 Pending CN1869516A (en) | 2006-05-23 | 2006-05-23 | Internal combustion blast furnace special gas nozzle with circular fluidic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1869516A (en) |
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2006
- 2006-05-23 CN CN 200610044237 patent/CN1869516A/en active Pending
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