CN203893197U - Blast furnace gas combustion assisting device - Google Patents
Blast furnace gas combustion assisting device Download PDFInfo
- Publication number
- CN203893197U CN203893197U CN201420309460.8U CN201420309460U CN203893197U CN 203893197 U CN203893197 U CN 203893197U CN 201420309460 U CN201420309460 U CN 201420309460U CN 203893197 U CN203893197 U CN 203893197U
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- CN
- China
- Prior art keywords
- furnace gas
- blast furnace
- cone
- tube
- outer cone
- 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.)
- Withdrawn - After Issue
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- 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 utility model relates to a blast furnace gas combustion assisting device, and belongs to the technical field of gas emission and processing facilities. The inlet end of a cylindrical body of the device is composed of a central air inlet passageway and a surrounding air inlet passageway. The outlet end of the cylindrical body of the device is composed of a gradually-narrowing flame stabilizing cone and a flame spray nozzle. A gradually-expanding cone section with a heat preservation layer is arranged between the inlet end and the outlet end, composed of an inner cone cylinder and an outer cone ring surrounding the inner cone cylinder, and provided with a primary air pipe which penetrates through the outer cone ring and is inserted into the inner cone cylinder, wherein the outer end of the primary air pipe is communicated with the atmosphere, the inner end of the primary air pipe extends to form a spray nozzle with a necking section, a flow uniformizing cavity extends towards the outer cone ring to form a backflow pipe, and an end of the backflow pipe is provided with an injection spray nozzle which is inserted into the primary air pipe and faces towards the center of the necking section. By means of the blast furnace gas combustion assisting device, high furnace gas entering the inner cone cylinder can be reliably ignited and can be stably combusted.
Description
Technical field
The utility model relates to a kind of burner, and especially a kind of blast furnace gas companion burns device, belongs to gas discharging treatment facility technical field.
Background technology
The blast furnace gas calorific value that the industries such as metallurgy are diffused is low, is difficult to light; Even if light, also rather unstable burns.Therefore, burning blast furnace gas all needs to take certain measure, to guarantee reliable ignition, smooth combustion.
Retrieval is found, application number is that 200920035801.6 Chinese patent discloses a kind of high-altitude ignition auxiliary combustor during combustion of blast furnace gas, comprise ignition pot, ignition pot communicates with the external world up and down, Elevator arc generator is set in ignition pot, Elevator arc generator nearside arranges high-pressure conductive lever apparatus, and blast furnace gas inlet tube stretches in ignition pot, and ignition pot top arranges grid type catalytic reaction chamber.The probability that this companion's burner mainly contacts with oxygen molecule by catalyst increase combustion gas is to realize the smooth burning of low-heat value gas at lower temperature.But because thermally-stabilised and hot the shaking property of catalyst itself is undesirable, lost efficacy frequent, frequency of maintenance is high, is therefore applied to lighting of work high above the ground and accompanies burner pretty troublesome.
Application number is that 201120147192.0 Chinese patent discloses one and combines companion's burner, comprises fuel gas pipe, above described fuel gas pipe, is communicated with and is provided with annular firing ring, is arranged at intervals with multiple bright eruption heads above described annular firing ring.Described bright eruption head is cylindrical-shaped structure, and its bright eruption hole is all opened on relative madial wall, and bright eruption hole on each bright eruption head is tapered three pore structures of offering.Because large aperture burner combustion exists certain unstability and randomness, under the natural conditions such as wind and rain snow or when operating mode is unstable, produce especially burning insufficient, more even extinguish lamp danger, therefore this companion's burner is only suitable for oil gas, day burner etc. of high heating value, and is not suitable for fuel gas with low heat value.
Application number is that 200820302006.4 Chinese patent discloses a kind of high altitude ignition co-burning machine, comprises high altitude igniter and companion's burner are together arranged in partner's burner housing, and wherein high altitude igniter comprises electric arcing electrode and electric arcing electrode insulation seat; Companion's burner comprises the reative cell and the fuel gas pipe that are arranged in partner's burner housing, and high altitude igniter is arranged on the bottom of reative cell, provides initial reaction condition for the fuel of fire fuel air chamber to reative cell.This burner belongs to self-induced-air diffusion premixed type burner, be suitable for high heating value combustion gas, out of question to lighting of coal gas of converter, blast furnace gas, but because the stable of burning must have enough heats to support, this device fails to take into full account the problem that improves heat utilization ratio, and therefore the stability of burning will have problems.
Utility model content
The purpose of this utility model is: the shortcoming existing for above-mentioned prior art, proposition one can ensure low combustion value furnace gas reliable ignition, smooth combustion, and blast furnace gas easy to maintenance companion burning device, thereby meets better the requirement of environmental protection.
Analyze knownly, the heat of blast furnace gas combustion process mainly contains three sources: the heat that 1) combustible medium burning produces; 2) sensible heat of combustible medium; 3) sensible heat of combustion-supporting medium.The loss of combustion process heat also can be divided into three parts conventionally: 1) burning produces exhaust heat, is finally spread in atmosphere; 2) under high temperature with the thermal loss of the outside radiation formation of visible ray form; 3) follow-up air-flow is the heat that homeostasis burning absorbs.And combustion stablized condition comprises: more than the heat that 1) combustible medium produces is enough heated to the burning point of combustible medium by subsequent medium temperature; 2) there is sufficient oxide isolation.
Fully considering on the basis of above factor, in order to reach above object, the blast furnace gas companion that the utility model forms burns device basic technical scheme and is: comprise the cylindrical body with entrance point and the port of export, described entrance point forms by the air intake passage at center with around the air inlet circuit of air intake passage, and described air inlet circuit is by the external blast furnace gas of gas inlet; The described port of export is made up of steady flame cone and the bright eruption mouth of convergent, and described steady flame cone has the pressure release mouth that border distributes; It between described entrance point and the port of export, is the flaring cone segments with heat-insulation layer, described cone segments forms by being communicated with described air intake passage and the inner conical-tube of steady flame cone and the outer cone ring being looped around outside inner conical-tube, one end of the contiguous steady flame cone of described outer cone ring is separated out uniform flow chamber, and described outer cone ring is communicated with air inlet circuit and uniform flow chamber; Described cone segments has at least one airduct that inserts inner conical-tube and tilt towards bright eruption mouth direction through outer cone ring, and the outer end of a described airduct communicates with atmosphere, and the spout with necking segment is extended in the inner; Return duct is extended towards outer cone ring in described uniform flow chamber, and the termination of described return duct has airduct of insertion and the driving nozzle towards necking segment center.
Further, the inwall of described inner conical-tube has spinning disk.
Further, described inner conical-tube is intervally distributed with one group of two ends and lays respectively at the heat pipe in inner conical-tube and in outer cone ring.
Further, described air intake passage communicates with atmosphere by overfiren air port.
Further, described pressure release mouth forms towards the guiding tube of the interior convergent of steady flame cone by the mouth seam circumferentially extending with by mouth seam.
Further, one end of the contiguous steady flame cone of described outer cone ring is separated out uniform flow chamber by having the cage ring of even pore; One end of the contiguous outer cone ring of described air inlet circuit has the barrier circle of distribution air distribution hole, and the two ends of described outer cone ring are communicated with air inlet circuit and uniform flow chamber by the air distribution hole in barrier circle and cage ring and even pore respectively.
Further, described cone segments have from top to bottom and by both sides towards center totally five places through outer cone ring insert inner conical-tube and towards bright eruption mouth direction tilt an airduct, the higher airduct in position is the closer to entrance point, and the fire rod firing tip vicinity that described entrance point inserts from entrance point recently and the highest spout in position.
Further, the horn-like spout with necking segment is extended in the inner of a described airduct.
The utility model designs for low-calorie blast furnace gas, its semiclosed and outer insulation construction has effectively reduced radiation and heat by conduction scattering and disappearing to environment, air distribution of injection type, especially mutually combine with secondary air distribution, significantly improve combustion-supporting condition, inner eddy flow fin preheating structure has increased contact area and the time of contact of air-flow and burner, in addition heat pipe structure, the heat that fuel gas buring produces above is fully delivered in chuck, fully absorbed by follow-up combustion gas, greatly improve the sensible heat of follow-up combustion gas, therefore make the combustion gas that enters inner conical-tube be stablized fully burning.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the structural representation of a preferred embodiment of the utility model.
Detailed description of the invention
Embodiment mono-
The blast furnace gas companion of the present embodiment burns device as shown in Figure 1, and the cylindrical body A with horizontal axis has entrance point IN and port of export OUT.The air intake passage 1 at entrance point INYou center and forming around the air inlet circuit 2 of air intake passage.Air intake passage 1 communicates with atmosphere by near the axial tubular overfiren air port 3 central authorities of end, and air inlet circuit 2 is by the external blast furnace gas of gas inlet 4 radially.
Port of export OUT is made up of the steady flame cone 5 of convergent and the tubulose bright eruption mouth 6 of its outer end, steady flame cone 5 has one group of uniform pressure release mouth 7 of border, the guiding tube 7-2 that each pressure release mouth 7 is stitched 7-1 and bored 5 interior convergents by mouth seam towards steady flame by the mouth circumferentially extending forms, can be by exhaust or tonifying Qi, balance external and internal pressure.
It between entrance point IN and port of export OUT, is the flaring cone segments 9 with heat-insulation layer 8.This cone segments forms by being communicated with air intake passage 1 and the inner conical-tube 9-1 of steady flame cone 5 and the outer cone ring 9-2 being looped around outside inner conical-tube.The inwall of inner conical-tube 9-1 has one group of helical form spinning disk 9-3 spaced apart.One end of the contiguous steady flame cone 5 of outer cone ring 9-2 is separated out uniform flow chamber 9-5 by having the cage ring 9-4 of even pore.One end of air inlet circuit 2 contiguous outer cone ring 9-2 has the barrier circle 2-1 of distribution air distribution hole, the two ends of outer cone ring 9-2 are communicated with air inlet circuit 2 and uniform flow chamber 9-5 by the air distribution hole on barrier circle 2-1 and cage ring 9-4 and even pore respectively, this structure makes the steady air current in air inlet circuit 2 and uniform flow chamber 9-5 and in outer cone ring 9-2, and pressure is relatively even.
Cone segments 9 has from top to bottom and by the both sides airduct 10 of an airduct that five places insert inner conical-tube and tilt towards bright eruption mouth 6 directions through outer cone ring towards center totally, the higher airduct in position is the closer to entrance point, the outer end of each airduct 10 communicates with atmosphere, the horn-like spout 10-1 with necking segment is extended in the inner, and the fire rod 11 firing tip vicinities that entrance point IN inserts are the nearest and the highest spout 10-1 in position from entrance point IN.Uniform flow chamber 9-5 extends corresponding with each airduct 10 positions respectively return duct 12 towards outer cone ring 9-2, and the termination of return duct 12 has inserts a corresponding airduct 10, driving nozzle 12-1 towards necking segment center.
Inner conical-tube 9-1 inwall bottom, is intervally distributed with along its length one group of two ends and lays respectively at the heat pipe 13 in inner conical-tube 9-1 and in outer cone ring 9-2, and the two ends of heat pipe 13 have respectively fin.
When work, the gas inlet 4 that blast furnace gas to be seted off burns device by the present embodiment blast furnace gas companion enters, air distribution hole through barrier circle 2-1 enters in outer cone ring 9-2, fully absorb by heat pipe 13 and cone segments 9 barrels and spinning disk 9-3 the heat that in inner conical-tube 9-1, previously blast furnace gas combustion produces, the coal gas to be seted off entering in outer cone ring 9-2 is carried out to effective preheating.Coal gas to be seted off after preheating enters uniform flow chamber 9-5 through the even pore of cage ring 9-4, enter driving nozzle 12-1 by return duct 12 again, spray into inner conical-tube 9-1, simultaneously due to jet action, by an airduct 10, air is brought into, form mist, under the effect of front end naked light or fire rod 11, light.Because the spray angle of driving nozzle 12-1 is towards bright eruption mouth 6, therefore, when waste gas and part heat are discharged by bright eruption mouth 6 with the airflow pattern of naked light, overfiren air port 3 also will fill into part air and carry out preheating, to ensure continual and steady burning.The effect that spinning disk 9-3 has pilot flame and produces eddy flow trend, not only can fully absorb calory burning and be transmitted to the barrel of cone segments 9, also has the well-mixed effect of the air of making and coal gas.Pressure release mouth 7 is for balance outlet pressure, and heat-insulation layer 8 reduces heat and thinks scattering and disappearing of environment.
The blast furnace gas companion of the present embodiment burns device and adopts semi-enclosed heat insulation measure, the various forms of thermal loss such as radiation, conduction are not only effectively avoided, and by heat pipe, spinning disk 9-3 and cone segments 9 barrels absorb enough heats by heated by gas to be seted off preheating to approaching burning-point, and secondary air inlet structure has been guaranteed sufficient oxide isolation, thereby be that follow-up reliable ignition and the smooth combustion of guarantee is had laid a good foundation.
Evidence, semi-close burning mode and insulation construction have effectively reduced the loss of burning capacity, and calory burning for follow-up coal gas to be seted off, preheating of air, is made it more approach burning-point by fully, after gas enters cavity, running into naked light is reliable ignition, and burning continually and steadily.
Claims (8)
1. a blast furnace gas companion burns device, comprise the cylindrical body with entrance point and the port of export, it is characterized in that: described entrance point forms by the air intake passage at center with around the air inlet circuit of air intake passage, and described air inlet circuit is by the external blast furnace gas of gas inlet; The described port of export is made up of steady flame cone and the bright eruption mouth of convergent, and described steady flame cone has the pressure release mouth that border distributes; It between described entrance point and the port of export, is the flaring cone segments with heat-insulation layer, described cone segments forms by being communicated with described air intake passage and the inner conical-tube of steady flame cone and the outer cone ring being looped around outside inner conical-tube, one end of the contiguous steady flame cone of described outer cone ring is separated out uniform flow chamber, and described outer cone ring is communicated with air inlet circuit and uniform flow chamber; Described cone segments has at least one airduct that inserts inner conical-tube and tilt towards bright eruption mouth direction through outer cone ring, and the outer end of a described airduct communicates with atmosphere, and the spout with necking segment is extended in the inner; Return duct is extended towards outer cone ring in described uniform flow chamber, and the termination of described return duct has airduct of insertion and the driving nozzle towards necking segment center.
2. blast furnace gas companion according to claim 1 burns device, it is characterized in that: the inwall of described inner conical-tube has spinning disk.
3. blast furnace gas companion according to claim 2 burns device, it is characterized in that: described inner conical-tube is intervally distributed with one group of two ends and lays respectively at the heat pipe in inner conical-tube and in outer cone ring.
4. blast furnace gas companion according to claim 3 burns device, it is characterized in that: described air intake passage communicates with atmosphere by overfiren air port.
5. blast furnace gas companion according to claim 4 burns device, it is characterized in that: in described pressure release mouth is stitched by the mouth circumferentially extending and bored towards steady flame by mouth seam, the guiding tube of convergent forms.
6. blast furnace gas companion according to claim 5 burns device, it is characterized in that: one end of the contiguous steady flame cone of described outer cone ring is separated out uniform flow chamber by having the cage ring of even pore; One end of the contiguous outer cone ring of described air inlet circuit has the barrier circle of distribution air distribution hole, and the two ends of described outer cone ring are communicated with air inlet circuit and uniform flow chamber by the air distribution hole in barrier circle and cage ring and even pore respectively.
7. blast furnace gas companion according to claim 6 burns device, it is characterized in that: described cone segments have from top to bottom and by both sides towards center totally five places through outer cone ring insert inner conical-tube and towards bright eruption mouth direction tilt an airduct, the higher airduct in position is the closer to entrance point, and the fire rod firing tip vicinity that described entrance point inserts from entrance point recently and the highest spout in position.
8. blast furnace gas companion according to claim 7 burns device, it is characterized in that: the horn-like spout with necking segment is extended in the inner of a described airduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309460.8U CN203893197U (en) | 2014-06-06 | 2014-06-06 | Blast furnace gas combustion assisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309460.8U CN203893197U (en) | 2014-06-06 | 2014-06-06 | Blast furnace gas combustion assisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893197U true CN203893197U (en) | 2014-10-22 |
Family
ID=51719595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309460.8U Withdrawn - After Issue CN203893197U (en) | 2014-06-06 | 2014-06-06 | Blast furnace gas combustion assisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006394A (en) * | 2014-06-06 | 2014-08-27 | 南通海鹰机电集团有限公司 | Blast furnace gas burning assisting device |
| CN116086147A (en) * | 2022-12-19 | 2023-05-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for preventing titanium concentrate from hardening of low-temperature drying rotary kiln |
-
2014
- 2014-06-06 CN CN201420309460.8U patent/CN203893197U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006394A (en) * | 2014-06-06 | 2014-08-27 | 南通海鹰机电集团有限公司 | Blast furnace gas burning assisting device |
| CN104006394B (en) * | 2014-06-06 | 2016-05-25 | 南通海鹰机电集团有限公司 | A kind of blast furnace gas companion burns device |
| CN116086147A (en) * | 2022-12-19 | 2023-05-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for preventing titanium concentrate from hardening of low-temperature drying rotary kiln |
| CN116086147B (en) * | 2022-12-19 | 2024-04-26 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for preventing titanium concentrate from hardening of low-temperature drying rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |