CN214032565U - Blast furnace blast humidifying device - Google Patents
Blast furnace blast humidifying device Download PDFInfo
- Publication number
- CN214032565U CN214032565U CN202022811437.7U CN202022811437U CN214032565U CN 214032565 U CN214032565 U CN 214032565U CN 202022811437 U CN202022811437 U CN 202022811437U CN 214032565 U CN214032565 U CN 214032565U
- Authority
- CN
- China
- Prior art keywords
- steam
- pipeline
- stop valve
- air duct
- blast furnace
- 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.)
- Active
Links
- 239000007789 gas Substances 0.000 description 7
- 239000003034 coal gas Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000001015 Abdomen Anatomy 0.000 description 1
- 229920002456 HOTAIR Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Images
Abstract
The utility model relates to a blast furnace blast air humidification device, access to the cold air duct of hot-blast furnace including one end intercommunication fan room, one end, the cold air duct bypass be connected with the mixed air duct that the pipe diameter is less than the cold air duct, be equipped with steam heater by the mixed air duct, steam heater's entrance connection has steam conduit, is connected with the humidification pipeline between steam heater's exit end and the mixed air duct, is located to be equipped with on the mixed air duct in humidification pipeline junction the place ahead and mixes air governing valve and mix the wind trip valve. The utility model discloses connect the humidification pipeline on mixing the wind pipeline, steam in the steam pipeline preheats the back through steam preheater, gets into mixing the wind pipeline through the humidification pipeline and carries out humidification to cold wind, mixes through the hot-blast house steward of humidification back gas and hot-blast furnace, finally gets into the blast furnace to the realization is handled the quick adjustment of blast furnace condition overheat situation.
Description
Technical Field
The utility model relates to the technical field of steel making, in particular to a blast furnace blast humidifying device.
Background
The conditions of the steelmaking blast furnace are influenced by various factors, including the adjustment of alkalinity, the adjustment of a thermal system, the adjustment of an air supply and charging system and the adjustment and judgment of the whole furnace conditions, and the guarantee of sufficient physical heat of the slag iron is the most basic and important premise of blast furnace smelting, even when the furnace conditions are smooth or abnormal, the slag must be guaranteed first, otherwise, the smooth operation is not possible, the accidents of overheating and hanging of materials of the blast furnace occur in succession, and great troubles are brought to iron-smelting workers.
The main parameters of the blast furnace for representing the furnace heat and the furnace cool are physical heat and chemical heat, the physical heat is different from the chemical heat of different blast furnaces, the cool and heat of the blast furnace greatly influence the furnace condition of the blast furnace, the furnace belly coal gas volume is expanded when the furnace heats, the furnace internal pressure is high, the air quantity is difficult to maintain, the soft melting zone moves upwards, the airflow is changed, and the furnace condition temperature or the long-term smooth operation of the blast furnace is caused.
The method has the advantages that the method is the most common method for adjusting the overheating of the furnace condition of the blast furnace, the humidity adjustment can be used for quickly and sensitively adjusting the furnace condition, the distribution of the airflow of the blast furnace is not influenced, the consumption of coal gas and coke is saved, the humidifying measures are adjusted by an automatic means, the furnace condition of the blast furnace is easier to adjust, and the yield of the blast furnace is easier to improve.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the utility model provides a blast furnace blast humidifying device to realize the furnace condition when the furnace temperature is higher than normal by rapid adjustment.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a blast furnace blast air humidification device, includes that one end intercommunication fan room, one end access to the cold air duct of hot-blast furnace, cold air duct bypass be connected with the mixed air duct that the pipe diameter is less than the cold air duct, be equipped with steam heater on the other of mixed air duct, steam heater's entrance connection has steam conduit, is connected with the humidification pipeline between steam heater's exit end and the mixed air duct, is located to be equipped with on the mixed air duct in humidification pipeline junction the place ahead and mixes air governing valve and mix the wind trip valve.
For the steam preheater is got into to convenient control steam, steam conduit's pipeline on be equipped with steam inlet stop valve and electronic trip valve in proper order, be equipped with the stop valve that admits air on the steam conduit of nearly steam preheater entrance point.
Further, the humidification pipeline on be equipped with stop valve, steam outlet stop valve and the electrical control valve of giving vent to anger, wherein the nearly steam preheater exit end one side of the stop valve of giving vent to anger, the nearly air mixing pipeline one side of steam outlet stop valve, electrical control valve is located between stop valve and the steam outlet stop valve of giving vent to anger, is connected with flowmeter, steam pressure gauge and thermometer on the humidification pipeline.
The bottom end of the steam preheater is connected with a pollution discharge stop valve so as to conveniently discharge impurities in the steam preheater.
The utility model has the advantages that: the utility model discloses connect the humidification pipeline on mixing the wind pipeline, steam in the steam pipeline preheats the back through steam preheater, gets into mixing the wind pipeline through the humidification pipeline and carries out humidification to cold wind, mixes through the hot-blast house steward of humidification back gas and hot-blast furnace, finally gets into the blast furnace to the realization is handled the quick adjustment of blast furnace condition overheat situation.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the system comprises a cold air pipeline, a wind mixing pipeline, a steam preheater, a steam pipeline, a humidifying pipeline, a wind mixing adjusting valve, a wind mixing stop valve, a steam inlet stop valve, a power-driven stop valve, a gas inlet stop valve, a gas outlet stop valve, a steam outlet stop valve, a power-driven adjusting valve, a flowmeter, a steam pressure gauge, a thermometer and a pollution discharge stop valve, wherein the cold air pipeline comprises 2 parts of the wind mixing pipeline, 3 parts of the steam preheater, 4 parts of the steam pipeline, 5 parts of the humidifying pipeline, 6 parts of the wind mixing adjusting valve, 7 parts of the wind mixing stop valve, 8 parts of the steam inlet stop valve, 9 parts of the power-driven stop valve, 10 parts of the gas inlet stop valve, 11 parts of the gas outlet stop valve, 12 parts of the steam outlet stop valve, 13 parts of the power-driven adjusting valve, 14 parts of the flowmeter, 15 parts of the steam pressure gauge, 16 parts of the thermometer and 17 parts of the pollution discharge stop valve.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The blast furnace air-blast humidifying device shown in fig. 1 comprises a cold air pipeline 1 with one end communicated with a fan room and one end communicated with a hot air furnace, wherein the cold air pipeline 1 is connected with an air mixing pipeline 2 with the diameter smaller than that of the cold air pipeline 1 in a bypass mode.
Be located and be equipped with steam heater 3 by mixing wind pipeline 2, steam heater 3's entrance connection has steam conduit 4, is connected with humidification pipeline 5 between steam heater 3 and the mixing wind pipeline 2, and 5 one ends of humidification pipeline are connected with steam heater 3's exit end, and the humidification pipeline 5 other end is connected with mixing wind pipeline 2. The bottom end of the steam preheater 3 is connected with a blowdown stop valve 17.
And an air mixing adjusting valve 6 and an air mixing cut-off valve 7 are arranged on the air mixing pipeline 2 in front of the joint of the humidifying pipeline 5 so as to adjust and control the gas flow.
The pipeline of the steam pipeline 4 is sequentially provided with a steam inlet stop valve 8 and an electric cut-off valve 9, and the steam pipeline 4 close to the inlet end of the steam preheater 3 is provided with an air inlet stop valve 10.
Humidification pipeline 5 on be equipped with stop valve 11, steam outlet stop valve 12 and the electrical control valve 13 of giving vent to anger, wherein the 3 exit end one sides of the nearly steam preheater of stop valve 11 of giving vent to anger, 2 one sides of the nearly air mixing pipeline of steam outlet stop valve 12, electrical control valve 13 is located between stop valve 11 and the steam outlet stop valve 12 of giving vent to anger, is connected with flowmeter 14, steam pressure gauge 15 and thermometer 16 on the humidification pipeline 5.
The air flow direction is from right to left according to the figure 1, cold air of a fan room is sent to a hot blast stove for heating through a cold air pipeline 1, a part of the cold air enters an air mixing pipeline 2, steam input from a steam source is introduced into a steam pipeline 4, the steam is preheated by a steam preheater 3 and then enters the air mixing pipeline 2 through a humidifying pipeline 5 to humidify the cold air, the humidified gas is mixed with a hot blast main pipe of the hot blast stove through an air mixing adjusting valve 6 and an air mixing cut-off valve 7, and finally enters the blast furnace, so that the adjustment of the condition of superheat of the blast furnace is realized.
The utility model discloses connect humidification pipeline 5 on mixing air duct 2, carry out humidification to some cold wind through steam and get into the blast furnace to the furnace conditions when quick adjustment furnace temperature is on the high side, steam turns into hydrogen and CO in the tuyere area, and conversion heat absorption and coal gas emergence volume increase, and the coal gas utilization rate improves and can further reduce furnace temperature again, and consequently the humidification is adjusted furnace temperature on the high side and is feasible and quick.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a blast furnace blast air humidification device, includes that one end intercommunication fan room, one end lead to cold air duct (1) of hot-blast furnace, characterized by: cold-blast duct (1) bypass be connected with mixed air duct (2) that the pipe diameter is less than cold-blast duct (1), mixed air duct (2) other steam heater (3) of being equipped with, the entrance connection of steam heater (3) has steam conduit (4), the exit end of steam heater (3) and mix and be connected with between air duct (2) humidification pipeline (5), be located and be equipped with on mixed air duct (2) in humidification pipeline (5) junction the place ahead and mix wind governing valve (6) and mix wind trip valve (7).
2. The blast furnace blower humidifying device as defined in claim 1, wherein: the pipeline of the steam pipeline (4) is sequentially provided with a steam inlet stop valve (8) and an electric stop valve (9), and the steam pipeline (4) close to the inlet end of the steam preheater (3) is provided with an air inlet stop valve (10).
3. The blast furnace blower humidifying device as defined in claim 2, wherein: humidification pipeline (5) on be equipped with stop valve (11), steam outlet stop valve (12) and electrical control valve (13) of giving vent to anger, wherein give vent to anger nearly steam preheater (3) exit end one side of stop valve (11), steam outlet stop valve (12) are nearly thoughtlessly wind pipeline (2) one side, electrical control valve (13) are located between stop valve (11) and the steam outlet stop valve (12) of giving vent to anger, be connected with flowmeter (14), steam pressure gauge (15) and thermometer (16) on humidification pipeline (5).
4. The blast furnace blower humidifying device as defined in claim 1, wherein: the bottom end of the steam preheater (3) is connected with a pollution discharge stop valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022811437.7U CN214032565U (en) | 2020-11-27 | 2020-11-27 | Blast furnace blast humidifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022811437.7U CN214032565U (en) | 2020-11-27 | 2020-11-27 | Blast furnace blast humidifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214032565U true CN214032565U (en) | 2021-08-24 |
Family
ID=77363605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022811437.7U Active CN214032565U (en) | 2020-11-27 | 2020-11-27 | Blast furnace blast humidifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214032565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440616A (en) * | 2022-02-08 | 2022-05-06 | 鞍钢集团工程技术有限公司 | Process and system for drying lump ore by blast of blast furnace |
-
2020
- 2020-11-27 CN CN202022811437.7U patent/CN214032565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440616A (en) * | 2022-02-08 | 2022-05-06 | 鞍钢集团工程技术有限公司 | Process and system for drying lump ore by blast of blast furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214032565U (en) | Blast furnace blast humidifying device | |
| CN103940213A (en) | Coke drying system dry gas temperature and flow self-adjustment control device and method | |
| CN206014993U (en) | A kind of blast-furnace hot-air furnace apparatus and its cold wind intelligent regulating system | |
| CN101182957A (en) | Air gas primary heater unit of hot-air stove | |
| CN107574273A (en) | Blast-furnace hot-air system temperature regulation and control method and apparatus based on plasma heating | |
| CN110860378A (en) | Hot air blowing system for electric dust remover | |
| CN201593054U (en) | Converter coal gas excess heat integrated recovery and utilization system | |
| CN105238901A (en) | Multipurpose hot blast stove high-temperature preheating system | |
| CN212058346U (en) | Flue gas waste heat air mixing device capable of adjusting temperature | |
| CN212982849U (en) | Groove method carbon black air supply device | |
| CN113755661B (en) | Control method of blast furnace hot blast stove flue gas air intake system for coke drying | |
| CN2900546Y (en) | Blast furnace combined air-gas doulbe preheating waste heat recovery device | |
| CN209428388U (en) | A kind of charging device for float glass smelting kiln smoke pre-heating batch | |
| CN111841861A (en) | System and method for reducing cold air volume of coal mill | |
| CN202938632U (en) | Energy-saving core rod preheating furnace heat-supply device | |
| CN104531957A (en) | Rapid cooling device for heat treatment furnace | |
| CN202246727U (en) | High-blast-temperature combinative heat exchange system of blast furnace | |
| CN204434657U (en) | A kind of fast cooling device of heat treatment furnace | |
| CN2669131Y (en) | Blast furnace high-air-temperature combined heat-exchange system | |
| CN205077087U (en) | Hot -blast furnace high temperature preheating system of multipurpose | |
| CN202346889U (en) | Production equipment for micro-bead glass | |
| CN208333132U (en) | A kind of pipe-line system based on galvanized wire heating furnace | |
| CN203880710U (en) | Preheating type combustor for industrial kilns and furnaces | |
| CN215637291U (en) | Air supply system of boiler | |
| CN218721640U (en) | Warm air device based on hot air recirculation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |