CN104946833A - Automatic ignition and combustion accompanying device for blast furnace and converter gas desorption tower - Google Patents
Automatic ignition and combustion accompanying device for blast furnace and converter gas desorption tower Download PDFInfo
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- CN104946833A CN104946833A CN201510405990.1A CN201510405990A CN104946833A CN 104946833 A CN104946833 A CN 104946833A CN 201510405990 A CN201510405990 A CN 201510405990A CN 104946833 A CN104946833 A CN 104946833A
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Abstract
The invention discloses an automatic ignition and combustion accompanying device for a blast furnace and converter gas desorption tower. Two compression rooms are arranged on the upper portion of the desorption tower, and injection burners provided with combustion accompanying fast switching-off valves are arranged above the two compression rooms respectively. Combustion accompanying igniters are installed at the positions of the injection burners respectively in a matched mode. Pressure sensors are arranged on the compression rooms and are connected with a PLC control device. The PLC control device is connected with an air compressor, pipeline fast switching-off valves and the combustion accompanying fast switching-off valves. The PLC control device automatically controls switching-on and switching-off of the pipeline fast switching-off valves and the combustion accompanying fast switching-off valves according to the feedback values of the pressure sensors. According to the automatic ignition and combustion accompanying device for the blast furnace and converter gas desorption tower, due to the fact that the two compression rooms are arranged, the pressure generated during gas desorption is large, desorption is fast, the ignition time of the combustion accompanying igniters is shortened, and energy is saved; meanwhile, the injection burners are improved so that gas can be mixed with air more sufficiently during combustion, the combustion efficiency is improved, and pollutant emission is reduced.
Description
Technical field
The present invention relates to a kind of field of metallurgy, be specifically related to a kind of blast furnace, coal gas of converter diffusing tower automatic ignition companion burns device.
Background technology
At present, coal gas diffusion tower, uses the igniting of coke-oven gas ever-burning flame, companion's burning, this technology needs portfire to be in the state of sustained combustion, do not diffusing the period of blast furnace gas, some partner burns gas (coke-oven gas) continuous burning, wastes a large amount of coke-oven gas.Meanwhile, because containing tar in coke-oven gas, tar long-term aggregated can cause nozzles to block in the coil pipe of portfire, so every two weeks all needs to carry out steaming out to portfire pipeline, when tar blocking is serious, also needs to carry out pipe-dredging, consume manpower and materials.
Summary of the invention
For the deficiencies in the prior art, the present invention aims to provide a kind of blast furnace, coal gas of converter diffusing tower automatic ignition companion burns device, and have and save companion's burning resource, companion combusts sufficient feature.
To achieve these goals, the present invention adopts following technical scheme:
A kind of blast furnace, coal gas of converter diffusing tower automatic ignition companion burns device, comprise diffusing tower, it is characterized in that: two pressure spaces are set respectively on the top of diffusing tower, air compressor is connected with two pressure spaces respectively by a three-way pipeline, and be provided with pipeline and cut valve soon on the pipeline leading to two pressure spaces respectively, be respectively arranged with above two pressure spaces and burn with companion the injection burner cutting valve soon, accompany burning lighter for ignition to coordinate respectively and be arranged on injection burner place, and during the lighter for ignition installation of companion's burning, there is level angle upwards, pressure space is provided with pressure transmitter, pressure transmitter connects PLC control device, valve cut soon by PLC control device control linkage air compressor and pipeline and companion's burning cuts valve soon, PLC control device automatically controls pipeline according to the value of feedback of pressure transmitter and cuts valve soon and accompany the opening and closing of burning and cutting valve soon.
Described injection burner, it is characterized in that: injection burner periphery is evenly distributed with gas injection pipe, gas injection pipe is connected with pressure space respectively, and the middle and lower part sidewall of injection burner is provided with air-inlet grille, and air-inlet grille is connected with the air passageways in the middle part of injection burner.
Companion burns when lighter for ignition is installed and has level angle upwards, and angular range is preferably 45-75 degree with horizontal sextant angle.
Companion around each injection burner burns lighter for ignition number and is preferably 3 to 4, and companion's burning lighter for ignition is uniformly distributed around injection burner.
PLC control device comprises a comparison unit, and the maximum pressure value A of pressure measurements value C and setting and minimal pressure force value B compares by this comparison unit, and PLC control device controls pipeline according to comparative result and cuts valve soon and companion burns the opening and closing of cutting valve soon.
PLC control device is also provided with pressure reference value change device, and pressure reference value change device can increase or reduce pressure reference value A and B.
Described companion burns lighter for ignition, high energy igniter generation Jacob elevator electric arc is adopted to convert electric energy to the planar continuous arcing of average area 30*200 square, light coal gas of converter continuous print gas flame, and under the catalyst action of catalytic reaction chamber, discharge a large amount of light and heats, produce gas flame, thus define coal gas companion burning lighter for ignition.This kind of lighter for ignition operationally, when light and the control of all controlled device of combustion case and monitoring, blast furnace gas fuel gas supply control valve is opened also simultaneously to high energy igniter power transmission by control device, make its continuous arcing, until lighted, examine device by fire after lighting and obtain signal, the power supply of high energy igniter is disconnected again by control device, blast furnace gas pyrotechnic generator just can jet out flames the flame and the companion becoming burner makes a fire continuously, ensure that the blast furnace gas of blast furnace gas burner ejection can both reliably ignite under any state, thus ensure the operating safety of boiler.
Combustion case also can arrange corresponding flame detecting loop monitoring, and when guaranteeing to diffuse combustion gas, bleeder is in perfect combustion state.
Beneficial effect of the present invention is:
The present invention, by arranging two pressure spaces, makes pressure during coal gas diffusion large, diffuses fast, decrease companion and burn the igniter fire time, saved the energy; Simultaneously by improvement to injection burner, when making gas-fired and air mixed more abundant, improve efficiency of combustion, decrease exhaust emission.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is injection burner structural representation of the present invention;
Fig. 3 is the plan structure schematic diagram of Fig. 2.
Embodiment
Below with reference to accompanying drawing, the invention will be further described, it should be noted that, the present embodiment, premised on the technical program, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to the present embodiment.
As Fig. 1, 2, shown in 3, a kind of blast furnace, coal gas of converter diffusing tower automatic ignition companion burns device, comprises diffusing tower 7, it is characterized in that: arrange two pressure spaces 1 on the top of diffusing tower 7 respectively, 6, air compressor 9 by a three-way pipeline respectively with two pressure spaces 1, 6 are connected, and are leading to two pressure spaces 1 respectively, the pipeline of 6 is provided with pipeline and cuts valve 10 soon, 8, two pressure spaces 1, be respectively arranged with above in the of 6 and cut valve 2 soon with companion's burning, the injection burner 14 of 5, companion burns lighter for ignition 3, 4 respectively coordinate be arranged on injection burner 14 place, and companion burn lighter for ignition 3, there is level angle upwards, pressure space 1 during 4 installation, pressure transmitter 11 is provided with on 6, 12, pressure transmitter 11, valve 8 cut soon by 12 connection PLC control device 13, PLC control device 13 control linkage air compressor 9 and pipeline, 10 and companion burn cut valve 2 soon, 5, PLC control device 13 is according to pressure transmitter 11, the value of feedback of 12 automatically controls pipeline and cuts valve 8 soon, 10 and companion burn cut valve 2 soon, the opening and closing of 5.
Described injection burner, it is characterized in that: injection burner periphery is evenly distributed with gas injection pipe 142, gas injection pipe 142 is connected with pressure space respectively, the middle and lower part sidewall of injection burner 14 is provided with air-inlet grille 143, and air-inlet grille 143 is connected with the air passageways 141 in the middle part of injection burner.
Companion burns when lighter for ignition is installed and has level angle upwards, and angular range is preferably 45-75 degree with horizontal sextant angle.
Companion around each injection burner burns lighter for ignition number and is preferably 3 to 4, and companion's burning lighter for ignition is uniformly distributed around injection burner.
PLC control device 13 comprises a comparison unit, the maximum pressure value A of pressure measurements value C and setting and minimal pressure force value B compares by this comparison unit, and PLC control device 13 controls pipeline according to comparative result and cuts valve 8,10 soon and companion burns the opening and closing of cutting valve 2,5 soon.
PLC control device 13 is also provided with pressure reference value change device, and pressure reference value change device can increase or reduce pressure reference value A and B.
During work, PLC control device opening conduits cuts valve 8 soon and companion's burning cuts valve 2 soon, pipeline is cut valve 10 soon and is accompanied burning to cut valve 5 soon and now closes, now PLC control device controls air compressor 9 pressurized gas and enters pressure space 6, coal gas in pressure space 1 sprays through injection burner 14, simultaneously PLC control device controls companion and burns lighter for ignition 3 and to ignite coal gas, when the pressure in pressure space 6 reaches upper limit A, closing duct cuts valve 10 soon and companion's burning cuts valve 5 soon, pipeline is cut valve 8 soon and is accompanied burning to cut valve 2 soon and now closes, now PLC control device controls air compressor 9 pressurized gas and enters pressure space 1, coal gas in pressure space 6 sprays through injection burner 14, and ignited by companion's burning lighter for ignition 4, again switch to during A when the gas in pressure space 1 reaches pressure, cycle operation like this.
During work, when the gas in pressure space reaches pressure to B, close companion's burning and cut valve soon.
When injection burner burns, fully contact, improve efficiency of combustion around coal gas air-flow with air, coal gas increases due to spraying pressure simultaneously, decreases companion and burns the igniter fire time, saved the energy.
For a person skilled in the art, according to above technical scheme and design, various corresponding change and distortion can be provided, and all these change and distortion all should be included within the protection domain of the claims in the present invention.
Claims (6)
1. blast furnace, coal gas of converter diffusing tower automatic ignition companion burns device, comprise diffusing tower, it is characterized in that: two pressure spaces are set respectively on the top of diffusing tower, air compressor is connected with two pressure spaces respectively by a three-way pipeline, and be provided with pipeline and cut valve soon on the pipeline leading to two pressure spaces respectively, be respectively arranged with above two pressure spaces and burn with companion the injection burner cutting valve soon, accompany burning lighter for ignition to coordinate respectively and be arranged on injection burner place, and during the lighter for ignition installation of companion's burning, there is level angle upwards, pressure space is provided with pressure transmitter, pressure transmitter connects PLC control device, valve cut soon by PLC control device control linkage air compressor and pipeline and companion's burning cuts valve soon, PLC control device automatically controls pipeline according to the value of feedback of pressure transmitter and cuts valve soon and accompany the opening and closing of burning and cutting valve soon.
2. blast furnace according to claim 1, coal gas of converter diffusing tower automatic ignition companion burn device, its technical characteristics is also: described injection burner periphery is evenly distributed with gas injection pipe, gas injection pipe is connected with pressure space respectively, the middle and lower part sidewall of injection burner is provided with air-inlet grille, and air-inlet grille is connected with the air passageways in the middle part of injection burner.
3. blast furnace according to claim 1, coal gas of converter diffusing tower automatic ignition companion burn device, and its technical characteristics is also: companion burns when lighter for ignition is installed and has level angle upwards, and angular range is preferably 45-75 degree with horizontal sextant angle.
4. the blast furnace according to claim 1,3, coal gas of converter diffusing tower automatic ignition companion burns device, its technical characteristics is also: the companion around each injection burner burns lighter for ignition number and is preferably 3 to 4, and companion's burning lighter for ignition is uniformly distributed around injection burner.
5. blast furnace according to claim 1, coal gas of converter diffusing tower automatic ignition companion burn device, its technical characteristics is also: PLC control device comprises a comparison unit, the maximum pressure value A of pressure measurements value C and setting and minimal pressure force value B compares by this comparison unit, and PLC control device controls pipeline according to comparative result and cuts valve soon and companion burns the opening and closing of cutting valve soon.
6. the blast furnace according to claim 1,5, coal gas of converter diffusing tower automatic ignition companion burns device, its technical characteristics is also: PLC control device is also provided with pressure reference value change device, and pressure reference value change device can increase or reduce pressure reference value A and B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405990.1A CN104946833B (en) | 2015-07-13 | 2015-07-13 | Automatic ignition and combustion accompanying device for blast furnace and converter gas desorption tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510405990.1A CN104946833B (en) | 2015-07-13 | 2015-07-13 | Automatic ignition and combustion accompanying device for blast furnace and converter gas desorption tower |
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| CN104946833A true CN104946833A (en) | 2015-09-30 |
| CN104946833B CN104946833B (en) | 2017-04-12 |
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| CN201510405990.1A Active CN104946833B (en) | 2015-07-13 | 2015-07-13 | Automatic ignition and combustion accompanying device for blast furnace and converter gas desorption tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397784A (en) * | 2018-03-06 | 2018-08-14 | 河北煜剑节能技术有限公司 | Blast furnace gas ignition diffusion system |
| CN111500816A (en) * | 2020-06-03 | 2020-08-07 | 广东韶钢松山股份有限公司 | Converter gas ignition and diffusion method and converter gas ignition and diffusion control system |
| CN117965832A (en) * | 2024-03-27 | 2024-05-03 | 唐山学院 | Environment-friendly self-adaptive control device and control method for uniform coal injection and blowing of blast furnace |
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| CN201289084Y (en) * | 2008-09-03 | 2009-08-12 | 李湘庭 | High altitude ignition co-burning machine |
| CN102261664A (en) * | 2011-05-23 | 2011-11-30 | 启东市海信机械有限公司 | Novel blast furnace gas diffusion and automatic ignition system |
| 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 |
| CN203927952U (en) * | 2014-06-11 | 2014-11-05 | 鞍钢股份有限公司 | Automatic ignition and combustion accompanying device for blast furnace gas diffusion |
| CN204187642U (en) * | 2014-10-31 | 2015-03-04 | 苏州宝联重工股份有限公司 | Spreading burner |
| CN104726624A (en) * | 2015-03-24 | 2015-06-24 | 启东市海信机械有限公司 | Automatic gas release ignition pressure stabilizing system |
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2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201289084Y (en) * | 2008-09-03 | 2009-08-12 | 李湘庭 | High altitude ignition co-burning machine |
| CN102261664A (en) * | 2011-05-23 | 2011-11-30 | 启东市海信机械有限公司 | Novel blast furnace gas diffusion and automatic ignition system |
| 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 |
| CN203927952U (en) * | 2014-06-11 | 2014-11-05 | 鞍钢股份有限公司 | Automatic ignition and combustion accompanying device for blast furnace gas diffusion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397784A (en) * | 2018-03-06 | 2018-08-14 | 河北煜剑节能技术有限公司 | Blast furnace gas ignition diffusion system |
| CN111500816A (en) * | 2020-06-03 | 2020-08-07 | 广东韶钢松山股份有限公司 | Converter gas ignition and diffusion method and converter gas ignition and diffusion control system |
| CN117965832A (en) * | 2024-03-27 | 2024-05-03 | 唐山学院 | Environment-friendly self-adaptive control device and control method for uniform coal injection and blowing of blast furnace |
| CN117965832B (en) * | 2024-03-27 | 2024-06-18 | 唐山学院 | Environment-friendly self-adaptive control device and control method for uniform coal injection and blowing of blast furnace |
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| CN104946833B (en) | 2017-04-12 |
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