CN205014366U - Blast furnace gas combustor - Google Patents
Blast furnace gas combustor Download PDFInfo
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- CN205014366U CN205014366U CN201520759918.4U CN201520759918U CN205014366U CN 205014366 U CN205014366 U CN 205014366U CN 201520759918 U CN201520759918 U CN 201520759918U CN 205014366 U CN205014366 U CN 205014366U
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- coal gas
- blast furnace
- combustion head
- pipe
- air delivery
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Abstract
The utility model discloses a blast furnace gas combustor, including the controller, the flame detector on the combustion head is located to the combustion head, with the leading -in pipeline of coal gas of the perpendicular UNICOM of combustion head, locates burning torch, the fan on the leading -in pipeline of coal gas and stretches into a plurality of air transportation pipe in the leading -in pipeline of coal gas, is equipped with a plurality of coal gas outlet duct in the leading -in pipeline of coal gas, each coal gas outlet duct all communicates with the blast furnace, and each air transportation pipe all is connected with the fan, and the controller is connected with flame detector, burning torch soft breeze electromechanics respectively. The utility model discloses intelligent degree height, ignition success rate height have, automatic control and the characteristics that artificial intervention combined together, the security is good.
Description
Technical field
The utility model relates to blast furnace gas processing technology field, especially relates to that a kind of security is high, the blast furnace gas burner of good stability.
Background technology
Blast furnace gas is a kind of byproduct in blast furnace ironmaking process, is changed and obtain by coke in blast furnace after gasification, because in its composition, combustibles is few, be only the carbon monoxide of 20 ~ 30% and a small amount of hydrocarbon, all the other are non-combustible composition, and wherein nitrogen accounts for 55%, and calorific capacity is very low.
Under China steel enterprise prior art level, blast furnace self hot-blast stove can only use up 40% ~ 50% blast furnace gas, remainder to sky discharge, not only wastes energy substantially, and the gas such as C0 and CH4 contained in blast furnace gas also can cause very large pollution to environment.
When blast furnace gas being passed into common burner, because blast furnace gas combustibles is few, easily causing burner to stop working, bringing hidden danger to the safe operation of boiler plant.
Chinese patent mandate publication number: CN2560850, authorizes publication date on July 16th, 2003, discloses a kind of Semi-flameless type blast-furnace gas combustor for vertical furnace, primarily of burner body and quirk two parts composition.Burner body is made up of in-built coal gas feeder and the air register being placed on its outside, the body of described feeder is vertical long flat hollow body, gas exit place is tapered nozzle, the outlet of air register is located as tapered equally, the angle of its convergent is greater than the tapered angle of nozzle, carries out mixing, light a fire, burns in the lump in inflow shaft furnace combustion chamber again in long flat heat accumulating type quirk coal gas and air being all sprayed onto at a high speed with direct current be loaded in furnace wall.The weak point of this invention is, easily causes burner to stop working, there is potential safety hazard.
Summary of the invention
Goal of the invention of the present utility model is easily stopped working to overcome burner of the prior art, brings the deficiency of hidden danger to the safe operation of boiler plant, provides that a kind of security is high, the blast furnace gas burner of good stability.
To achieve these goals, the utility model is by the following technical solutions:
A kind of blast furnace gas burner, comprise controller, combustion head, be located at the flame detector on combustion head, the coal gas import pipe of UNICOM vertical with combustion head, be located at the burning torch in coal gas import pipe, blower fan and stretch into several air delivery pipes in coal gas import pipe, in coal gas import pipe, be provided with several coal gas escape pipes; The inlet end of each coal gas escape pipe is all communicated with blast furnace, and each air delivery pipe is all connected with blower fan, and controller is electrically connected with flame detector, burning torch and blower fan respectively.
The flare up fire that controller detects for receiving flame detector, when there is misfiring condition, controller can be lighted a fire by control point firelock again, thus effectively avoid the generation of misfiring condition, guarantee the safe operation of boiler plant, controller can control the unlatching of blower fan, cut out regulate air-supply power, thus reaches the object of the air output controlling air delivery pipe.
Therefore, the utility model has that intelligence degree is high, security good, and the safe operation for boiler plant provides the feature of reliable basis.
As preferably, each coal gas escape pipe and each air delivery pipe all with the axis parallel of coal gas import pipe; Each coal gas escape pipe circular array in coal gas import pipe, each air delivery pipe lays respectively between adjacent coal gas escape pipe.
The arrangement mode of each coal gas escape pipe and each air delivery pipe, coal gas is mixed more even with air, burning torch is more easily lighted a fire successfully.
As preferably, also comprise the tube-carrier on the axial line being located at coal gas import pipe, the inlet end of tube-carrier is communicated with blast furnace, and the outlet side of tube-carrier is closed, and the outlet side perisporium of tube-carrier is provided with the gas outlet of several annular array.
The setting of tube-carrier further increases the uniformity coefficient that coal gas mixes with air, and burning torch is more easily lighted a fire successfully.
As preferably, also comprise display and alarm, display, alarm are all electrically connected with controller.
When burning torch is repeatedly lighted a fire unsuccessful, controller can control alarm and send warning message, thus makes staff carry out manual intervention in time, guarantees the safe operation of boiler plant.
As preferably, described combustion head is the tubulose that one end is closed, and the coal gas escape pipe perisporium near combustion head one end is provided with some groups of ventholes, often organizes venthole and includes several perforates circumferentially distributed along combustion head perisporium.
As preferably, the openend of described combustion head is provided with the interface coordinated with boiler, and the diameter of interface is less than the diameter at other position of combustion head.
As preferably, the outlet side of each air delivery pipe and the distance of combustion head are all greater than the outlet side of each coal gas escape pipe and the distance of combustion head.
Therefore, the utility model has following beneficial effect: intelligence degree is high, ignition success rate is high; Automatic control combines with manual intervention, security is good, for the safe operation of boiler plant provides reliable basis.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of cross-sectional structure schematic diagram of coal gas import pipe of the present utility model;
Fig. 3 is a kind of circuit diagram of the present utility model.
In figure: controller 1, combustion head 2, flame detector 3, coal gas import pipe 4, burning torch 5, blower fan 6, air delivery pipe 7, coal gas escape pipe 8, display 9, alarm 10, interface 11, tube-carrier 12.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment is as shown in Figure 1, Figure 3 a kind of blast furnace gas burner, comprise controller 1, combustion head 2, be located at the flame detector 3 on combustion head, the coal gas import pipe 4 of UNICOM vertical with combustion head, be located at the burning torch 5 in coal gas import pipe, blower fan 6 and stretch into 7 air delivery pipes 7 in coal gas import pipe, in coal gas import pipe, be provided with 9 coal gas escape pipes 8; The inlet end of each coal gas escape pipe is all communicated with blast furnace, and each air delivery pipe is all connected with blower fan, and controller is electrically connected with flame detector, burning torch and blower fan respectively.Also comprise display 9 and alarm 10, display, alarm are all electrically connected with controller.The openend of combustion head is provided with the interface 11 coordinated with boiler, and the diameter of interface is less than the diameter at other position of combustion head.
As shown in Figure 1 and Figure 2, each coal gas escape pipe and each air delivery pipe all with the axis parallel of coal gas import pipe; Each coal gas escape pipe circular array in coal gas import pipe, each air delivery pipe lays respectively between adjacent coal gas escape pipe.Display shown in Fig. 3 is light-emitting diode display.
Also comprise the tube-carrier 12 on the axial line being located at coal gas import pipe, the inlet end of tube-carrier is communicated with blast furnace, and the outlet side of tube-carrier is closed, and the outlet side perisporium of tube-carrier is provided with the gas outlet of annular array.
Combustion head is the tubulose that one end is closed, and the coal gas escape pipe perisporium near combustion head one end is provided with 1 group of venthole, often organizes venthole and includes 4 perforates circumferentially distributed along combustion head perisporium.The outlet side of each air delivery pipe and the distance of combustion head are all greater than the outlet side of each coal gas escape pipe and the distance of combustion head.
The course of work of the present utility model is as follows:
Blast furnace gas imports in coal gas import pipe by each coal gas escape pipe and tube-carrier, and controller controls blower fan work, the outlet side delivery air of each air delivery pipe, and controller can be lighted a fire by control point firelock, flame detector flame detection signal;
When controller makes flame-out judgement according to the detection signal of flame detector, controller control point firelock is lighted a fire again, and flame detector continues flame detection signal; When controller makes again flame-out judgement according to the detection signal of flame detector, controller control point firelock is lighted a fire again;
When burning torch light a fire 2 times still flame-out time, controller controls alarm and sends warning message, thus makes staff carry out manual intervention in time, guarantees the safe operation of boiler plant.
Should be understood that the present embodiment is only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
Claims (7)
1. a blast furnace gas burner, it is characterized in that, comprise controller (1), combustion head (2), be located at the flame detector (3) on combustion head, the coal gas import pipe (4) of UNICOM vertical with combustion head, several air delivery pipes (7) be located at the burning torch (5) in coal gas import pipe, blower fan (6) and stretched in coal gas import pipe, are provided with several coal gas escape pipes (8) in coal gas import pipe; The inlet end of each coal gas escape pipe is all communicated with blast furnace, and each air delivery pipe is all connected with blower fan, and controller is electrically connected with flame detector, burning torch and blower fan respectively.
2. blast furnace gas burner according to claim 1, is characterized in that, each coal gas escape pipe and each air delivery pipe all with the axis parallel of coal gas import pipe; Each coal gas escape pipe circular array in coal gas import pipe, each air delivery pipe lays respectively between adjacent coal gas escape pipe.
3. blast furnace gas burner according to claim 2, it is characterized in that, also comprise the tube-carrier (12) on the axial line being located at coal gas import pipe, the inlet end of tube-carrier is communicated with blast furnace, the outlet side of tube-carrier is closed, and the outlet side perisporium of tube-carrier is provided with the gas outlet of several annular array.
4. blast furnace gas burner according to claim 1, is characterized in that, also comprise display (9) and alarm (10), display, alarm are all electrically connected with controller.
5. blast furnace gas burner according to claim 1, it is characterized in that, described combustion head is the tubulose that one end is closed, and the coal gas escape pipe perisporium near combustion head one end is provided with some groups of ventholes, often organizes venthole and includes several perforates circumferentially distributed along combustion head perisporium.
6. blast furnace gas burner according to claim 5, is characterized in that, the openend of described combustion head is provided with the interface (11) coordinated with boiler, and the diameter of interface is less than the diameter at other position of combustion head.
7. the blast furnace gas burner according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, the outlet side of each air delivery pipe and the distance of combustion head are all greater than the outlet side of each coal gas escape pipe and the distance of combustion head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520759918.4U CN205014366U (en) | 2015-09-28 | 2015-09-28 | Blast furnace gas combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520759918.4U CN205014366U (en) | 2015-09-28 | 2015-09-28 | Blast furnace gas combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205014366U true CN205014366U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520759918.4U Active CN205014366U (en) | 2015-09-28 | 2015-09-28 | Blast furnace gas combustor |
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| CN (1) | CN205014366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503900A (en) * | 2020-04-10 | 2020-08-07 | 华帝股份有限公司 | Wall-mounted boiler front cleaning control method |
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2015
- 2015-09-28 CN CN201520759918.4U patent/CN205014366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503900A (en) * | 2020-04-10 | 2020-08-07 | 华帝股份有限公司 | Wall-mounted boiler front cleaning control method |
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| GR01 | Patent grant |